40 C.F.R. PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY

Title 40 - Protection of Environment


Title 40: Protection of Environment

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PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY

Section Contents

General Provisions

§ 464.01   Applicability.
§ 464.02   General definitions.
§ 464.03   Monitoring and reporting requirements.
§ 464.04   Compliance date for PSES.

Subpart A—Aluminum Casting Subcategory

§ 464.10   Applicability; description of the aluminum casting subcategory.
§ 464.11   Specialized definitions.
§ 464.12   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 464.13   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 464.14   New source performance standards.
§ 464.15   Pretreatment standards for existing sources.
§ 464.16   Pretreatment standards for new sources.
§ 464.17   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

Subpart B—Copper Casting Subcategory

§ 464.20   Applicability; description of the copper casting subcategory.
§ 464.21   Specialized definitions.
§ 464.22   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 464.23   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 464.24   New source performance standards.
§ 464.25   Pretreatment standards for existing sources.
§ 464.26   Pretreatment standards for new sources.
§ 464.27   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

Subpart C—Ferrous Casting Subcategory

§ 464.30   Applicability; description of the ferrous casting subcategory.
§ 464.31   Specialized definitions.
§ 464.32   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 464.33   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 464.34   New source performance standards.
§ 464.35   Pretreatment standards for existing sources.
§ 464.36   Pretreatment standards for new sources.
§ 464.37   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

Subpart D—Zinc Casting Subcategory

§ 464.40   Applicability; description of the zinc casting subcategory.
§ 464.41   Specialized definitions.
§ 464.42   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 464.43   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 464.44   New source performance standards.
§ 464.45   Pretreatment standards for existing sources.
§ 464.46   Pretreatment standards for new sources.
§ 464.47   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]


Authority:  Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567, Pub. L. 95–217.

Source:  50 FR 45247, Oct. 30, 1985, unless otherwise noted.

General Provisions
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§ 464.01   Applicability.
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(a) This part applies to metal molding and casting facilities that discharge or may discharge pollutants to waters of the United States or that introduce pollutants into a publicly owned treatment works.

§ 464.02   General definitions.
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In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part:

(a) Aluminum casting. The remelting of aluminum or an aluminum alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary and secondary) metals manufacturing (40 CFR part 421) and aluminum forming (40 CFR part 467). Processing operations following the cooling of castings not covered under aluminum forming, except for grinding scrubber operations which are covered here, are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(b) Copper casting. The remelting of copper or a copper alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary and secondary) metals manufacturing (40 CFR part 421). Also excluded are casting of beryllium alloys in which beryllium is present at 0.1 or greater percent by weight and precious metals alloys in which the precious metal is present at 30 or greater percent by weight. Except for grinding scrubber operations which are covered here, processing operations following the cooling of castings are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(c) Ferrous casting. The remelting of ferrous metals to form a cast intermediate or finished product by pouring the molten metal into a mold. Except for grinding scrubber operations which are covered here, processing operations following the cooling of castings are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(d) Zinc casting. The remelting of zinc or zinc alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary) metals manufacturing (40 CFR part 421) and nonferrous metals forming (40 CFR part 471). Processing operations following the cooling of castings not covered under nonferrous metals forming are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(e) POTW shall mean “publicly owned treatment works.”

(f) A non-continuous discharger is a plant which does not discharge pollutants during specific periods of time for reasons other than treatment plant upset, such periods being at least 24 hours in duration. A typical example of a non-continuous discharger is a plant where wastewaters are routinely stored for periods in excess of 24 hours to be treated on a batch basis. For non-continuous discharging direct discharging plants, NPDES permit authorities shall apply the mass-based annual average effluent limitations or standards and the concentration-based maximum day and maximum for monthly average effluent limitations or standards established in the regulations. POTWs may elect to establish concentration-based standards for non-continuous discharges to POTWs. They may do so by establishing concentration-based pretreatment standards equivalent to the mass-based standards provided in §§464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46 of the regulations. Equivalent concentration standards may be established by following the procedures outlined in §464.03(b).

(g) Total phenols shall mean total phenolic compounds as measured by the procedure listed in 40 CFR part 136 (distillation followed by colorimetric—4AAP).

(h) Sm3 shall mean standard cubic meters.

(i) SCF shall means standard cubic feet.

(j) Total toxic organics (TTO) shall mean the sum of the mass of each of the toxic organic compounds which are found at a concentration greater than 0.010 mg/l. The specialized definitions for each subpart contain a discrete list of toxic organic compounds comprising TTO for each process segment in which TTO is regulated.

§ 464.03   Monitoring and reporting requirements.
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(a) As an alternative to monitoring for TTO (total toxic organics), an indirect discharging plant may elect to monitor for Oil and Grease instead. Compliance with the Oil and Grease standard shall be considered equivalent to complying with the TTO standard. Alternate Oil and Grease standards are provided as substitutes for the TTO standards provided in §§464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46.

(b) POTWs may establish concentration standards rather than mass standards, but must ensure that the concentration standards are exactly equivalent to the mass-based standards provided in §§464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46. Equivalent concentration standards may be determined by multiplying the mass-based standards included in the regulations by an appropriate measurement of average production, raw material usage, or air scrubber flow (kkg of metal poured, kkg of sand reclaimed, or standard cubic meters of air scrubbed) and dividing by an appropriate measure of average discharge flow to the POTW, taking into account the proper conversion factors to ensure that the units (mg/l) are correct.

(c) The “monthly average” regulatory values shall be the basis for the monthly average effluent limitations guidelines and standards in direct discharge permits and for pretreatment standards. Compliance with the monthly average effluent limitations guidelines and standards is required regardless of the number of samples analyzed and averaged.

§ 464.04   Compliance date for PSES.
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The compliance date of PSES is October 31, 1988.

Subpart A—Aluminum Casting Subcategory
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§ 464.10   Applicability; description of the aluminum casting subcategory.
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The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from aluminum casting operations as defined in §464.02(a).

§ 464.11   Specialized definitions.
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For the purpose of this subpart:

(a) Total toxic organics (TTO). TTO is a regulated parameter under PSES (§464.15) and PSNS (§464.16) for the aluminum subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:

(1) Casting Quench (§464.15(b) and §464.16(b)):

4. benzene

21. 2,4,6-trichlorophenol

22. Para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

65. phenol

66. bis(2-ethylhexyl) phthalate

67. butyl benzyl phthalate

84. pyrene

85. tetrachloroethylene

87. trichloroethylene

(2) Die Casting (§464.15(c) and §464.16(c)):

1. acenaphthene

4. benzene

7. chlorobenzene

11. 1,1,1-trichloroethane

21. 2,4,6-trichlorophenol

22. para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

55. naphthalene

65. phenol

66. bis(2-ethylhexyl) phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

72. benzo (a)anthracene (1,2-benzanthracene)

73. benzo (a)pyrene (3,4-benzopyrene)

76. chrysene

78. anthracene

80. fluorene

81. phenanthrene

84. pyrene

85. tetrachloroethylene

86. toluene

(3) Dust Collection Scrubber (§464.15(d) and §464.16(d)):

1. acenaphthene

21. 2,4,6-trichlorophenol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

65. phenol

66. bis (2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

73. benzo (a)pyrene (3,4-benzopyrene)

84. pyrene

(4) Investment Casting (§464.15(f) and §464.16(f)):

11. 1,1,1-trichloroethane

23. chloroform (trichloromethane)

44. methylene chloride (dichloromethane)

66. bis (2-ethylhexyl) phthalate

84. pyrene

85. tetrachloroethylene

87. trichloroethylene

(5) Melting Furnace Scrubber (§464.15(g) and §464.16(g)):

1. acenaphthene

21. 2,4,6-trichlorophenol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

65. phenol

66. bis (2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

73. benzo (a)pyrene (3,4-benzopyrene)

84. pyrene

(6) Mold Cooling (§464.15(h) and §464.16(h)):

4. benzene

21. 2,4,6-trichlorophenol

22. para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride

65. phenol

66. bis(2-ethylhexyl) phthalate

67. butyl benzyl phthalate

84. pyrene

85. tetrachloroethylene

87. trichloroethylene

§ 464.12   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitation and annual average mass limitation shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0771        0.0421Lead (T)....................................        0.0791        0.039Zinc (T)....................................        0.114         0.0431Oil & grease............................        3.0           1.0TSS.........................................        3.80          1.50pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.00 at all times.
 ------------------------------------------------------------------------                                                      Maximum                                          Maximum       for      Annual                                         for any 1    monthly    average                                            day       average      \1\------------------------------------------------------------------------                                        (mg/l)\2\   (mg/l)\2\Copper (T)............................       0.77        0.42      0.017Lead (T)..............................       0.79        0.39      0.022Zinc (T)..............................       1.14        0.43      0.027Oil & grease......................      30          10         0.501TSS...................................      38          15         1.0pH....................................   (\3\)       (\3\)      (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (12/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Casting Quench Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0093        0.0051Lead (T)....................................        0.0096        0.0047Zinc (T)....................................        0.0138        0.0052Oil & grease............................        0.363         0.121TSS.........................................        0.46          0.182pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum                                        Maximum       for       Annual                                       for any 1    monthly     average                                          day       average       \1\------------------------------------------------------------------------                                      (mg/l)\2\   (mg/l)\2\Copper (T)..........................       0.77        0.42       0.0021Lead (T)............................       0.79        0.39       0.0027Zinc (T)............................       1.14        0.43       0.0033Oil & grease....................      30          10          0.0605TSS.................................      38          15          0.121pH..................................   (\3\)       (\3\)      (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.45/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Die Casting Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total Phenols...............................        0.0074        0.0026Oil & Grease............................        0.259         0.0864TSS.........................................        0.33          0.13pH..........................................    (\1\)        (\1\)------------------------------------------------------------------------\1\ With the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum                                        Maximum       for       Annual                                       for any 1    monthly     average                                          day       average       \1\------------------------------------------------------------------------                                      (mg/l)      (mg/l)                                       (\2\)       (\2\)Copper (T)..........................       0.77        0.42       0.0015Lead (T)............................       0.79        0.39       0.0019Zinc (T)............................       1.14        0.43       0.0023Total Phenols.......................       0.86        0.3        0.0017Oil & Grease....................      30          10          0.0432TSS.................................      38          15          0.0864pH..................................   (\3\)       (\3\)      (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times,

(d) Dust Collection Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                 kg/62.3                                               million                                                 Sm\3\                                              (pounds per                                              billion SCF)                                                of air                                              scrubbed                                             ---------------------------Copper (T)..................................         0.231         0.126Lead (T)....................................         0.237         0.117Zinc (T)....................................         0.343         0.129Total Phenols...............................         0.258         0.09Oil & Grease............................         9.01          3.0TSS.........................................        11.4           4.51pH..........................................     (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                     Maximum                                           Maximum     for      Annual                                          for any 1  monthly    average                                             day     average      \1\------------------------------------------------------------------------                                         (mg/l)\2\   mg/                                                     l)\2\Copper (T).............................       0.77    0.42        0.0511Lead (T)...............................       0.79    0.39        0.0661Zinc (T)...............................       1.14    0.43        0.0811Total Phenols..........................       0.86    0.3         0.0601Oil & Grease.......................      30      10           1.5TSS....................................      38      15           3.0pH.....................................   (\3\)      (\3\)    (\3\)------------------------------------------------------------------------\1\ kg/62.3 million SM\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.036/x)  where x is the actual normalized process waste-water flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                               million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................         8.48          4.63Lead (T)....................................         8.7           4.3Zinc (T)....................................        12.6           4.74Oil and grease..............................       330           110TSS.........................................       419           165pH..........................................     (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                     Maximum                                         Maximum       for       Annual                                        for any 1    monthly    average                                           day       average      \1\------------------------------------------------------------------------                                       (mg/l)\2\   (mg/l)\2\Copper (T)...........................       0.77        0.42       1.87Lead (T).............................       0.79        0.39       2.42Zinc (T).............................       1.14        0.43       2.97Oil and grease.......................      30          10         55.1TSS..................................      38          15        110pH...................................   (\3\)       (\3\)      (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Melting Furnace Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                 kg/62.3                                               million                                                 Sm\3\                                              (pounds per                                              billion SCF)                                                of air                                              scrubbed                                             ---------------------------Copper (T)..................................         3.01          1.64Lead (T)....................................         3.09          1.52Zinc (T)....................................         4.45          1.68Total phenols...............................         3.36          1.17Oil and grease..............................       117            39.1TSS.........................................       148            58.6pH..........................................     (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                      Maximum                                          Maximum       for      Annual                                         for any 1    monthly    average                                            day       average      \1\------------------------------------------------------------------------                                        (mg/l) \2\  (mg/l) \2\Copper (T)............................       0.77        0.42      0.664Lead (T)..............................       0.79        0.39      0.859Zinc (T)..............................       1.14        0.43      1.05Total phenols.........................       0.86        0.3       0.781Oil and grease........................      30          10        19.5TSS...................................      38          15        39.1pH....................................   (\2\)       (\3\)      (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.468/x)  where x is the acutal normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(h) Mold Cooling Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                               million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................         0.297         0.162Lead (T)....................................         0.305         0.151Zinc (T)....................................         0.44          0.166Oil and grease..............................        11.6           3.86TSS.........................................        14.7           5.79pH..........................................     (\1\)        (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                Maximum for                                  Maximum for     monthly       Annual                                   any 1 day      average    average \1\------------------------------------------------------------------------                                 (mg/l) \1\    (mg/) \1\Copper (T).....................        0.77          0.42       0.0656Lead (T).......................        0.79          0.39       0.0849Zinc (T).......................        1.14          0.43       0.104Oil and grease.................       30            10          1.93TSS............................       38            15          3.86pH.............................    (\3\)         (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal\2\ These concentrations must be multiplied by the ratio of (46.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.13   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.0771         0.0421Lead (T)..................................         0.0791         0.039Zinc (T)..................................         0.114          0.0431------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................       0.77        0.42    0.017Lead (T)...............................       0.79        0.39    0.022Zinc (T)...............................       1.14        0.43    0.027------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\These concentrations must be multiplied by the ratio of (12/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.

(b) Casting Quench Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0093        0.0051Lead (T)....................................        0.0096        0.0047Zinc (T)....................................        0.0138        0.0052------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................       0.77        0.42    0.0021Lead (T)...............................       0.79        0.39    0.0027Zinc (T)...............................       1.14        0.43    0.0033 ------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\These concentrations must be multiplied by the ratio of (1.45/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(c) Die Casting Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total Phenols...............................        0.0074        0.0026------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................       0.77        0.42    0.0015Lead (T)...............................       0.79        0.39    0.0019Zinc (T)...............................       1.14        0.43    0.0023Total Phenols..........................       0.86        0.3     0.0017 ------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(d) Dust Collection Scrubber Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                 kg/62.3                                               million                                                 Sm\3\                                              (pounds per                                              billion SCF)                                                of air                                              scrubbed                                             ---------------------------Copper (T)..................................         0.231         0.126Lead (T)....................................         0.237         0.117Zinc (T)....................................         0.343         0.129Total Phenols...............................         0.258         0.09------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................       0.77        0.42    0.0511Lead (T)...............................       0.79        0.39    0.0661Zinc (T)...............................       1.14        0.43    0.0811Total Phenols..........................       0.86        0.3     0.0601------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (lb per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.036/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                               million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................         8.48          4.63Lead (T)....................................         8.7           4.3Zinc (T)....................................        12.6           4.74------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................       0.77        0.42      1.87Lead (T)...............................       0.79        0.39      2.42Zinc (T)...............................       1.14        0.43      2.97------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(g) Melting Furnace Scrubber Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                 kg/62.3                                               million                                                 Sm\3\                                              (pounds per                                              billion SCF)                                                of air                                              scrubbed                                             ---------------------------Copper (T)..................................         3.01          1.64Lead (T)....................................         3.09          1.52Zinc (T)....................................         4.45          1.68Total phenols...............................         3.36          1.17------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                      Maximum                                          Maximum       for      Annual                                         for any 1    monthly    average                                            day       average      \1\------------------------------------------------------------------------                                        (mg/l) \2\  (mg/l) \2\Copper (T)............................       0.77        0.42      0.664Lead (T)..............................       0.79        0.39      0.859Zinc (T)..............................       1.14        0.43      1.05Total phenols.........................       0.86        0.3       0.781------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed\2\ These concentrations must be multiplied by the ratio of (0.468/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(h) Mold Cooling Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                               million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................         0.297         0.162Lead (T)....................................         0.305         0.151Zinc (T)....................................         0.44          0.166------------------------------------------------------------------------
 ------------------------------------------------------------------------                                      Maximum   Maximum for                                     for any 1    monthly       Annual                                        day       average    average \1\------------------------------------------------------------------------                                    (mg/l) \2\  (mg/l) \2\Copper (T)........................       0.77        0.42       0.0656Lead (T)..........................       0.79        0.39       0.0849Zinc (T)..........................       1.14        0.43       0.104------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (46.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.14   New source performance standards.
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Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0771        0.0421Lead (T)....................................        0.0791        0.039Zinc (T)....................................        0.114         0.0431Oil and grease..............................        3.0           1.0TSS.........................................        3.8           1.5pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                      Maximum   Maximum for                                     for any 1    monthly       Annual                                        day       average    average \1\------------------------------------------------------------------------                                    (mg/l) \2\  (mg/l) \2\Copper (T)........................       0.77        0.42       0.017Lead (T)..........................       0.79        0.39       0.022Zinc (T)..........................       1.14        0.43       0.027Oil and grease....................      30          10          0.501TSS...............................      38          15          1.0pH................................   (\3\)       (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (12/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Casting Quench Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0093        0.0051Lead (T)....................................        0.0096        0.0047Zinc (T)....................................        0.0138        0.0052Oil and grease..............................        0.363         0.121TSS.........................................        0.46          0.182pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.0021Lead (T).............................       0.79         0.39     0.0027Zinc (T).............................       1.14         0.43     0.0033Oil and grease.......................      30           10        0.0605TSS..................................      38           15        0.121pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.45/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Die Casting Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                one 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total Phenols...............................        0.0074        0.0026Oil and grease..............................        0.259         0.0864TSS and.....................................        0.33          0.13pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.0015Lead (T).............................       0.79         0.39     0.0019Zinc (T).............................       1.14         0.43     0.0023Total phenols........................       0.86         0.3      0.0017Oil and grease.......................      30           10        0.0432TSS and..............................      38           15        0.0864pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured)\3\ Within the range of 7.0 to 10.0 at all times.

(d) Dust Collection Scrubber Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant of pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Cooper (T)................................         0.231          0.126Lead (T)..................................         0.237          0.117Zinc (T)..................................         0.343          0.129Total phenols.............................         0.258          0.09Oil and grease............................         9.01           3.0TSS.......................................        11.4            4.51pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Cooper (T)...........................       0.77         0.42     0.0511Lead (T).............................       0.79         0.39     0.0661Zinc (T).............................       1.14         0.43     0.0811Total phenols........................       0.86         0.3      0.0601Oil and grease.......................      30           10        1.5TSS..................................      38           15        3.0pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.036/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         8.48           4.63Lead (T)..................................         8.7            4.3Zinc (T)..................................        12.6            4.74Oil and grease............................       330            110TSS.......................................       419            165pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42        1.87Lead (T)...........................       0.79         0.39        2.42Zinc (T)...........................       1.14         0.43        2.97Oil and grease.....................      30           10          55.1TSS................................      38           15         110pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Melting Furnace Scrubber Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         3.01           1.64Lead (T)..................................         3.09           1.52Zinc (T)..................................         4.45           1.68Total phenols.............................         3.36           1.17Oil and grease............................       117             39.1TSS.......................................       148             58.6pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.664Lead (T)...........................       0.79         0.39       0.859Zinc (T)...........................       1.14         0.43       1.05Total phenols......................       0.86         0.3        0.781Oil and grease.....................      30           10         19.5TSS................................      38           15         39.1pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.468/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(h) Mold Cooling Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.297          0.162Lead (T)..................................         0.305          0.151Zinc (T)..................................         0.44           0.166Oil and grease............................        11.6            3.86TSS.......................................        14.7            5.79pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l)\2\    (mg/l)\2\Copper (T).........................       0.77         0.42       0.0656Lead (T)...........................       0.79         0.39       0.0849Zinc (T)...........................       1.14         0.43       0.104Oil and grease.....................      30           10          1.93TSS................................      38           15          3.86pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds of metal poured.\2\ These concentrations must be multiplied by the ratio of (46.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.15   Pretreatment standards for existing sources.
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Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Casting Cleaning Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0771        0.0421Lead (T)....................................        0.0791        0.039Zinc (T)....................................        0.114         0.0431------------------------------------------------------------------------

(b) Casting Quench Operation.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0093        0.0051Lead (T)....................................        0.0096        0.0047Zinc (T)....................................        0.0138        0.0052TT0.........................................        0.029         0.0095Oil and grease (for alternate monitoring)...        0.363         0.121------------------------------------------------------------------------

(c) Die Casting Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total phenols...............................        0.0074        0.0026TTO.........................................        0.0308        0.01Oil and grease (for alternate monitoring)...        0.259         0.0864------------------------------------------------------------------------

(d) Dust Collection Scrubber Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.231          0.126Lead (T)..................................         0.237          0.117Zinc (T)..................................         0.343          0.129Total phenols.............................         0.258          0.09TTO.......................................         0.613          0.2Oil and grease (for alternate monitoring).         9.01           3.00------------------------------------------------------------------------

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(f) Investment Casting.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                                million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................          8.48          4.63Lead (T)....................................          8.7           4.3Zinc (T)....................................         12.6           4.74TTO.........................................         18.1           5.91Oil and grease (for alternate monitoring....        330           110------------------------------------------------------------------------

(g) Melting Furnace Scrubber Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                  kg/62.3                                              million Sm                                              \3\ (pounds                                              per billion                                              SCF) of air                                               scrubbed                                             ---------------------------Copper (T)..................................          3.01          1.64Lead (T)....................................          3.09          1.52Zinc (T)....................................          4.45          1.68Total phenols...............................          3.36          1.17TTO.........................................          7.97          2.6Oil and grease (for alternate monitoring)...        117            39.1------------------------------------------------------------------------

(h) Mold Cooling Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.297          0.162Lead (T)..................................         0.305          0.151Zinc (T)..................................         0.44           0.166TTO.......................................         0.935          0.304Oil and grease (for alternate monitoring).        11.6            3.86------------------------------------------------------------------------

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.16   Pretreatment standards for new sources.
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Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Cleaning Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0771        0.0421Lead (T)....................................        0.0791        0.039Zinc (T)....................................        0.114         0.0431------------------------------------------------------------------------

(b) Casting Quench Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0093        0.0051Lead (T)....................................        0.0096        0.0047Zinc (T)....................................        0.0138        0.0052TTO.........................................        0.029         0.0095Oil and grease (for alternate monitoring)...        0.363         0.121------------------------------------------------------------------------

(c) Die Casting Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total Phenols...............................        0.0074        0.0026TTO.........................................        0.0308        0.01Oil and grease (for alternate monitoring)...        0.259         0.0864------------------------------------------------------------------------

(d) Dust Collection Scrubber Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.231          0.126Lead (T)..................................         0.237          0.117Zinc (T)..................................         0.343          0.129Total Phenols.............................         0.258          0.09TTO.......................................         0.613          0.2Oil and grease (for alternate monitoring).         9.01           3.0------------------------------------------------------------------------

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(f) Investment Casting.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                                million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................          8.48          4.63Lead (T)....................................          8.7           4.3Zinc (T)....................................         12.6           4.74TTO.........................................         18.1           5.91Oil and grease (for alternate monitoring)...        330           110------------------------------------------------------------------------

(g) Melting Furnace Scrubber Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                  kg/62.3                                                million                                                  Sm\3\                                              (pounds per                                              billion SCF)                                                 of air                                               scrubbed                                             ---------------------------Copper (T)..................................          3.01          1.64Lead (T)....................................          3.09          1.52Zinc (T)....................................          4.45          1.68Total Phenols...............................          3.36          1.17TTO.........................................          7.97          2.6Oil and grease (for alternate monitoring)...        117            39.1------------------------------------------------------------------------

(h) Mold Cooling Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.297          0.162Lead (T)..................................         0.305          0.151Zinc (T)..................................         0.44           0.166TTO.......................................         0.935          0.304Oil and grease (for alternate monitoring).        11.6            3.86------------------------------------------------------------------------
§ 464.17   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
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Subpart B—Copper Casting Subcategory
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§ 464.20   Applicability; description of the copper casting subcategory.
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The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from copper casting operations as defined in §464.02(b).

§ 464.21   Specialized definitions.
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For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§464.25) and PSNS (§464.26) for the copper subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:

(1) Casting Quench (§464.25(a) and §464.26(a)):

23. chloroform (trichloromethane)

64. pentachlorophenol

66. bis(2-ethylhexyl)phthalate

71. dimethyl phthalate

(2) Dust Collection Scrubbers (§464.25(c) and 464.26(c)):

1. acenaphthene

22. para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

55. naphthalene

58. 4-nitrophenol

64. pentachlorophenol

65. phenol

66. bis(2-ethylhexyl)phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

71. dimethyl phthalate

72. benzo(a)anthracene (1,2-benzanthracene)

74. 3,4-benzofluoranthene

75. benzo(k) fluoranthene

76. chrysene

77. acenaphthylene

78. anthracene

81. phenanthrene

84. pyrene

(3) Investment Casting (§464.25(e) and §464.26(e)):

1. acenaphthene

22. para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

55. naphthalene

58. 4-nitrophenol

64. pentachlorophenol

65. phenol

66. bis (2-ethylhexyl)phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

71. dimethyl phthalate

72. benzo(a)anthracene (1,2-benzanthracene)

74. 3,4-benzofluoranthene

75. benzo(k) fluoranthene

76. chrysene

77. acenaphthylene

78. anthracene

81. Phenanthrene

84. pyrene

(4) Melting Furnace Scrubber (§464.25(f) and §464.26(f)):

1. acenaphthene

22. para-chloro meta-cresol

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

55. naphthalene

58. 4-nitrophenol

64. pentachlorophenol

65. phenol

66. bis (2-ethylhexyl) phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

71. dimethyl phthalate

72. benzo(a)anthracene (1,2-benzanthracene)

74. 3,4-benzoflouranthene

75. benzo(k) flouranthene

76. chrysene

77. acenaphthylene

78. anthracene

81. phenanthrene

84. pyrene

(5) Mold Cooling (§464.25(g) and §464.26(g)):

23. chloroform (trichloromethane)

64. pentachlorophenol

66. bis(2-ethylhexyl)phthalate

71. dimethyl phthalate

§ 464.22   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0307        0.0168Lead (T)....................................        0.0315        0.0156Zinc (T)....................................        0.0455        0.0171Oil and grease..............................        1.2           0.399TSS.........................................        1.52          0.598pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.0068Lead (T)...........................       0.79         0.39       0.0088Zinc (T)...........................       1.14         0.43       0.0108Oil and grease.....................      30           10          0.199TSS................................      38           15          0.399pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured\2\ These concentrations must be multiplied by the ratio of (4.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Direct Chill Casting Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.928          0.506Lead (T)..................................         0.952          0.47Zinc (T)..................................         1.37           0.518Oil and grease............................        36.2           12.1TSS.......................................        45.8           18.1pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.205Lead (T)...........................       0.79         0.39       0.265Zinc (T)...........................       1.14         0.43       0.326Oil and grease.....................      30           10          6.03TSS................................      38           15         12.1pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (145/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Dust Collection Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.553          0.301Lead (T)..................................         0.567          0.28Zinc (T)..................................         0.818          0.309Total phenols.............................         0.617          0.215Oil and grease............................        21.5            7.18TSS.......................................        27.3           10.8ph........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.122Lead (T)...........................       0.79         0.39       0.158Zinc (T)...........................       1.14         0.43       0.194Total phenols......................       0.86         0.3        0.144Oil and grease.....................      30           10          3.59TSS................................      38           15          7.18pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.086/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         8.48           4.63Lead (T)..................................         8.7            4.3Zinc (T)..................................        12.6            4.74Oil and grease............................       330            110TSS.......................................       419            165pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42        1.87Lead (T)...........................       0.79         0.39        2.42Zinc (T)...........................       1.14         0.43        2.97Oil and grease.....................      30           10          55.1TSS................................      38           15         110pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(f) Melting Furnace Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.81           0.988Lead (T)..................................         1.86           0.918Zinc (T)..................................         2.68           1.01Total phenols.............................         2.02           0.706Oil and grease............................        70.6           23.5TSS.......................................        89.4           35.3pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.4Lead (T)...........................       0.79         0.39       0.518Zinc (T)...........................       1.14         0.43       0.635Total phenols......................       0.86         0.3        0.467Oil and grease.....................      30           10         11.8TSS................................      38           15         23.5pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pound per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.282/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Mold Cooling Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.392          0.214Lead (T)..................................         0.402          0.199Zinc (T)..................................         0.58           0.219Oil and grease............................        15.3            5.09TSS.......................................        19.3            7.63pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.0865Lead (T)...........................       0.79         0.39       0.112Zinc (T)...........................       1.14         0.43       0.137Oil and grease.....................      30           10          2.54TSS................................      38           15          5.09pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (61/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.23   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non-continuous discharges, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for        Pollutant or pollutant property         Maximum for    monthly                                                 any 1 day     average------------------------------------------------------------------------                                                   kg/1,000                                                kkg (pounds                                                per million                                                 pounds) of                                                      metal                                                     poured                                               -------------------------Copper (T)....................................       0.0307        .0168Lead (T)......................................       0.0211        .0104Zinc (T)......................................       0.0303        .0116------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum                                         Maximum      for       Annual                                        for any 1   monthly     average                                           day      average       \1\------------------------------------------------------------------------                                           (mg/l)     (mg/l)                                              \2\        \2\Copper (T)............................       0.77       0.42      0.0068Lead (T)..............................       0.53       0.26      0.006Zinc (T)..............................       0.76       0.29      0.0072------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (4.8/x)  where x is the actual normalized process waste-water flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(b) Direct Chill Casting Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for       Pollutant or pollutant property        Maximum for     monthly                                               any 1 day      average------------------------------------------------------------------------                                                 kg/1,000                                              kkg (pounds                                              per million                                               pounds) of                                                    metal                                                   poured                                             ---------------------------Copper (T)..................................        0.928         0.506Lead (T)....................................        0.639         0.314Zinc (T)....................................        0.916         0.35------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                     Maximum                                          Maximum      for       Annual                                         for any 1   monthly    average                                            day      average      \1\------------------------------------------------------------------------                                            (mg/l)     (mg/l)                                               \2\        \2\Copper (T).............................       0.77       0.42      0.205Lead (T)...............................       0.53       0.26      0.181Zinc (T)...............................       0.76       0.29      0.217------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (145/x)  where x is the actual normalized process waste-water flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(c) Dust Collection Scrubber Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.553          0.301Lead (T)..................................         0.38           0.187Zinc (T)..................................         0.545          0.208Total phenols.............................         0.617          0.215------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.122Lead (T)...........................       0.53         0.26       0.108Zinc (T)...........................       0.76         0.29       0.129Total phenols......................       0.86         0.3        0.144------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.086/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         8.48           4.63Lead (T)..................................         5.84           2.86Zinc (T)..................................         8.37           3.19------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       1.87Lead (T)...........................       0.53         0.26       1.65Zinc (T)...........................       0.76         0.29       1.98------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(f) Melting Furnace Scrubber Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.81           0.988Lead (T)..................................         1.25           0.612Zinc (T)..................................         1.79           0.673Total phenols.............................         2.02           0.706------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.4Lead (T)...........................       0.53         0.26       0.353Zinc (T)...........................       0.76         0.29       0.424Total phenols......................       0.86         0.3        0.471------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.282/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(g) Mold Cooling Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.392          0.214Lead (T)..................................         0.27           0.132Zinc (T)..................................         0.387          0.148------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                 Maximum for    Annual                                    Maximum for    monthly      average                                     any 1 day     average        \1\------------------------------------------------------------------------                                    (mg/l) \2\   (mg/l) \2\Copper (T)........................       0.77         0.42        0.0865Lead (T)..........................       0.53         0.26        0.0763Zinc (T)..........................       0.76         0.29        0.0916------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (61/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.

[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]

§ 464.24   New source performance standards.
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Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0307        0.0168Lead (T)....................................        0.0211        0.0104Zinc (T)....................................        0.0303        0.0116Oil and grease..............................        1.2           0.399TSS.........................................        0.598         0.479pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.0068Lead (T)...........................       0.53         0.26       0.006Zinc (T)...........................       0.76         0.29       0.0072Oil and grease.....................      30           10          0.199TSS................................      15           12          0.104pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (4.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Direct Chill Casting Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.928          0.506Lead (T)..................................         0.639          0.314Zinc (T)..................................         0.916          0.35Oil and grease............................        36.2           12.1TSS.......................................        18.1           14.5pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.205Lead (T).............................       0.53         0.26     0.181Zinc (T).............................       0.76         0.29     0.217Oil and grease.......................      30           10        6.03TSS..................................      15           12        3.13pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (145/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Dust Collection Scrubber Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.553          0.301Lead (T)..................................         0.38           0.187Zinc (T)..................................         0.545          0.208Total phenols.............................         0.617          0.215Oil and grease............................        21.5            7.18TSS.......................................        10.8            8.61pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.122Lead (T)...........................       0.53         0.26       0.108Zinc (T)...........................       0.76         0.29       0.129Total phenols......................       0.86         0.3        0.144Oil and grease.....................      30           10          3.59TSS................................      15           12          1.87pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.086/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                            millions                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         8.48           4.63Lead (T)..................................         5.84           2.86Zinc (T)..................................         8.37           3.19Oil and grease............................       330            110TSS.......................................       165            132pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   mg/l) \2\Copper (T).........................       0.77         0.42       1.87Lead (T)...........................       0.53         0.26       1.65Zinc (T)...........................       0.76         0.29       1.98Oil and grease.....................      30           10         55.1TSS................................      15           12         28.6pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(f) Melting Furnace Scrubber Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.81           0.988Lead (T)..................................         1.25           0.612Zinc (T)..................................         1.79           0.673Total phenols.............................         2.02           0.706Oil and grease............................        70.6           23.5TSS.......................................        35.3           28.2pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.4Lead (T)...........................       0.53         0.26       0.353Zinc (T)...........................       0.76         0.29       0.424Total phenols......................       0.86         0.3        0.471Oil and grease.....................      30           10         11.8TSS................................      15           12          6.12pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.282/x)  where x is the actual normalized process waste-water flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Mold Cooling Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.392          0.214Lead (T)..................................         0.27           0.132Zinc (T)..................................         0.387          0.148Oil and grease............................        15.3            5.09TSS.......................................         7.63           6.11pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/1) \2\   (mg/1) \2\Copper (T)...........................       0.77         0.42     0.0865Lead (T).............................       0.53         0.26     0.0763Zinc (T).............................       0.76         0.29     0.0916Oil and grease.......................      30           10        2.54TSS..................................      15           12        1.32pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pound) of metal poured.\2\ These concentrations must be multiplied by the ratio of (61/x) where  x is the actual normalized process waste-water flow (in gallons per  1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]

§ 464.25   Pretreatment standards for existing sources.
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Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Casting Quench Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0307        0.0168Lead (T)....................................        0.0211        0.0104Zinc (T)....................................        0.0303        0.0116TTO.........................................        0.0335        0.0109Oil and grease (for alternate monitoring)...        1.2           0.399------------------------------------------------------------------------

(b) Direct Chill Casting Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.928          0.506Lead (T)..................................         0.639          0.314Zinc (T)..................................         0.916          0.35------------------------------------------------------------------------

(c) Dust Collection Scrubber Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.552          0.301Lead (T)..................................         0.38           0.187Zinc (T)..................................         0.545          0.208Total phenols.............................         0.617          0.215TTO.......................................         1.65           0.54Oil and grease (for alternate monitoring).        21.5            7.18------------------------------------------------------------------------

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(e) Investment Casting.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         8.48           4.63Lead (T)..................................         5.84           2.86Zinc (T)..................................         8.37           3.19TTO.......................................        25.4            8.29Oil and grease for alternate monitoring)..       330            110------------------------------------------------------------------------

(f) Melting Furnace Scrubber Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.81           0.988Lead (T)..................................         1.25           0.612Zinc (T)..................................         1.79           0.673Total phenols.............................         2.02           0.706TTO.......................................         5.41           1.77Oil and grease (for alternate monitoring).        70.6           23.5------------------------------------------------------------------------

(g) Mold Cooling Operations.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.392          0.214Lead (T)..................................         0.27           0.132Zinc (T)..................................         0.387          0.148TTO.......................................         0.428          0.14Oil and grease (for alternate monitoring).        15.3            5.09------------------------------------------------------------------------
§ 464.26   Pretreatment standards for new sources.
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Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Quench Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0307        0.0168Lead (T)....................................        0.0211        0.0104Zinc (T)....................................        0.0303        0.0116TTO.........................................        0.0335        0.0109Oil and grease (for alternate monitoring)...        1.2           0.399------------------------------------------------------------------------

(b) Direct Chill Casting Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.928          0.506Lead (T)..................................         0.639          0.314Zinc (T)..................................         0.916          0.35------------------------------------------------------------------------

(c) Dust Collection Scrubber Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            Million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.552          0.301Lead (T)..................................         0.38           0.187Zinc (T)..................................         0.545          0.208Total Phenols.............................         0.617          0.215TTO.......................................         1.65           0.54Oil and Grease (for alternate monitoring..        21.5            7.18------------------------------------------------------------------------

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(e) Investment Casting.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for      Pollutant or pollutant property         Maximum for      monthly                                               any 1 day       average------------------------------------------------------------------------                                             kg/1,000 kkg                                             (pounds per                                              million                                             pounds) of                                             metal poured                                            ----------------------------Copper (T).................................         8.48           4.63Lead (T)...................................         5.84           2.86Zinc (T)...................................         8.37           3.19TTO........................................        25.4            8.29Oil and Grease (for alternate monitoring...       330            110------------------------------------------------------------------------

(f) Melting Furnace Scrubber Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.81           0.988Lead (T)..................................         1.25           0.612Zinc (T)..................................         1.79           0.673Total Phenols.............................         2.02           0.706TTO.......................................         5.41           1.77Oil and Grease (for alternate monitoring..        70.6           23.5------------------------------------------------------------------------

(g) Mold Cooling Operations.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.392          0.214Lead (T)..................................         0.27           0.132Zinc (T)..................................         0.387          0.148TTO.......................................         0.428          0.14Oil and Grease (for alternate monitoring..        15.3            5.09------------------------------------------------------------------------
§ 464.27   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
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Subpart C—Ferrous Casting Subcategory
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§ 464.30   Applicability; description of the ferrous casting subcategory.
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The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from ferrous casting operations as defined in §464.02(c).

§ 464.31   Specialized definitions.
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For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§464.35) and PSNS (§464.36) for the ferrous subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:

(1) Casting Quench (§464.35(b) and §464.36(b)):

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

(2) Dust Collection Scrubber (§464.35(c) and §464.36(b)):

1. acenaphthene

23. chloroform (trichloromethane)

31. 2,4-dichlorophenol

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

55. naphthalene

64. pentachlorophenol

65. phenol

66. bis(2-ethylhexyl)phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

71. dimethyl phthalate

72. benzo (a)anthracene (1,2-benzanthracene)

76. chrysene

77. acenaphthylene

78. anthracene

80. fluorene

81. phenanthrene

84. pyrene

(3) Investment Casting (§464.35(e) and §464.36(e)):

23. chloroform (trichloromethane)

44. methylene chloride (dichloromethane)

66. bis (2-ethylhexyl) phthalate

77. acenaphthylene

84. pyrene

(4) Melting Furnace Scrubber (§464.35(f) and §464.36(f)):

23. chloroform (trichloromethane)

31. 2,4-dichlorophenol

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

55. naphthalene

65. phenol

66. bis (2-ethylhexyl) phthalate

67. butyl benzyl phthalate

68. di-n-butyl phthalate

72. benzo (a)anthracene (1,2-benzanthracene)

76. chrysene

77. acenaphthylene

78. anthracene

80. fluorene

81. phenanthrene

84. pyrene

(5) Mold Cooling (§464.35(g) and §464.36(g)):

23. chloroform (trichloromethane)

34. 2,4-dimethylphenol

(6) Slag Quench (§464.35(h) and §464.36(h)):

34. 2,4-dimethylphenol

71. dimethyl phthalate

(7) Wet Sand Reclamation (§464.35(i) and §464.36(i)):

1. acenaphthene

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

55. naphthalene

65. phenol

66. bis (2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

71. dimethyl phthalate

72. benzo(a)anthracene (1,2-benzanthracene)

77. acenaphthylene

84. pyrene

(b) Cast Iron. An iron containing carbon in excess of the solubility in the austentite that exists in the alloy at the eutectic temperature. Cast iron also is defined here to include any iron-carbon alloys containing 1.2 percent or more carbon by weight.

(c) Ductile Iron. A cast iron that has been treated while molten with a master alloy containing an element such as magnesium or cerium to induce the formation of free graphite as nodules or spherules, which imparts a measurable degree of ductility to the cast metal.

(d) Gray Iron. A cast iron that gives a gray fracture due to the presence of flake graphite.

(e) Malleable Iron. A cast iron made by a prolonged anneal of white cast iron in which decarburization or graphitization, or both, take place to eliminate some or all of the cementite. Graphite is present in the form of temper carbon.

(f) Steel. An iron-base alloy containing carbon, manganese, and often other alloying elements. Steel is defined here to include only those iron-carbon alloys containing less than 1.2 percent carbon by weight.

(g) The “primary metal cast” shall mean the metal that is poured in the greatest quantity at an individual plant.

(h) Multiple Ferrous Melting Furnace Scrubber Configuration. A multiple ferrous melting furnace scrubber configuration is a configuration where two or more discrete wet scrubbing devices are employed in series in a single melting furnace exhaust gas stream. The ferrous melting furnace scrubber mass allowance shall be given to each discrete wet scrubbing device that has an associated wastewater discharge in a multiple ferrous melting furnace scrubber configuration. The mass allowance for each discrete wet scrubber shall be identical and based on the air flow of the exhaust gas stream that passes through the multiple scrubber configuration.

(i) Discrete Wet Scrubbing Device. A discrete wet scrubbing device is a distinct, stand-alone device that removes particulates and fumes from a contaminated gas stream by bringing the gas stream into contact with a scrubber liquor, usually water, and from which there is a wastewater discharge. Examples of discrete wet scrubbing devices are: Spray towers and chambers, venturi scrubbers (fixed and variable), wet caps, packed bed scrubbers, quenchers, and orifice scrubbers. Semi-wet scrubbing devices where water is added and totally evaporates prior to dry air pollution control are not considered to be discrete wet scrubbing devices. Ancillary scrubber operations such as fan washes and backwashes are not considered to be discrete wet scrubber devices. These ancillary operations are covered by the mass limitations of the associated scrubber. Aftercoolers are not considered to be discrete wet scrubbing devices, and water discharges from aftercooling are not regulated as a process wastewater in this category.

§ 464.32   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/1,000 kkg or lb/million lb of sand reclaimed; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0656        0.025Oil and grease..............................        1.34          0.446TSS.........................................        1.7           0.67pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0029Lead (T).............................       0.79         0.39     0.0098Zinc (T).............................       1.47         0.56     0.0179Oil and grease.......................      30           10        0.223TSS..................................      38           15        0.446pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio (5.33/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Casting Quench Operations

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138        0.0076Lead (T)....................................        0.0376        0.0185Zinc (T)....................................        0.0699        0.0266Oil and grease..............................        1.43          0.476TSS.........................................        1.81          0.713pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0031Lead (T).............................       0.79         0.39     0.0105Zinc (T).............................       1.47         0.56     0.019Oil and grease.......................      30           10        0.238TSS..................................      38           15        0.476pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Dust Collection Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.593          0.293Zinc (T)..................................         1.1            0.421Total phenols.............................         0.656          0.225Oil and grease............................        22.5            7.51TSS.......................................        28.5           11.3pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\   (mg/l)                                                                 \2\Copper (T)...........................       0.29         0.16     0.0488Lead (T).............................       0.79         0.39     0.165Zinc (T).............................       1.47         0.56     0.3Total phenols........................       0.86         0.3      0.15Oil and grease.......................      30           10        3.76TSS..................................      38           15        7.51pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio (0.090/x) where  x is the actual normalized process wastewater flow (in gallons per  1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         8.7            4.3Zinc (T)..................................        16.2            6.17Oil and grease............................       330            110TSS.......................................       419            165pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\   .........Copper (T).........................       0.29         0.16       0.716Lead (T)...........................       0.79         0.39       2.42Zinc (T)...........................       1.47         0.56       4.41Oil and grease.....................      30           10         55.1TSS................................      38           15        110pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(f) Melting Furnace Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         2.77           1.37Zinc (T)..................................         5.15           1.96Total phenols.............................         3.01           1.05Oil and grease............................       105             35TSS.......................................       133             52.6pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.228Lead (T)...........................       0.79         0.39       0.771Zinc (T)...........................       1.47         0.56       1.4Total phenols......................       0.86         0.3        0.701Oil and grease.....................      30           10         17.5TSS................................      38           15         35pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) or air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Mold Cooling Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.0428         0.0236Lead (T)..................................         0.117          0.0576Zinc (T)..................................         0.217          0.0827Oil and grease............................         4.43           1.48TSS.......................................         5.61           2.22pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0096Lead (T).............................       0.79         0.39     0.0325Zinc (T).............................       1.47         0.56     0.0591Oil and grease.......................      30           10        0.738TSS..................................      38           15        1.48pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured\2\ These concentrations must be multiplied by the ratio of (17.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\Within the range of 7.0 to 10.0 at all times.

(h) Slag Quench Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Cooper (T)..................................        0.0527        0.0291Lead (T)....................................        0.144         0.0709Zinc (T)....................................        0.267         0.102Oil and grease..............................        5.46          1.82TSS.........................................        6.91          2.73pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0118Lead (T).............................       0.79         0.39     0.04Zinc (T).............................       1.47         0.56     0.0728Oil and grease.......................      30           10        0.909TSS..................................      38           15        1.82pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/x)  where x is the actual normalized process wasterwater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(i) Wet Sand Reclamation Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Cooper (T)................................         0.217          0.12Lead (T)..................................         0.59           0.291Zinc (T)..................................         1.1            0.418Total phenols.............................         0.642          0.224Oil and grease............................        22.4            7.47TSS.......................................        28.4           11.2pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Cooper (T)...........................       0.29         0.16     0.0485Lead (T).............................       0.79         0.39     0.164Zinc (T).............................       1.47         0.56     0.299Total phenols........................       0.86         0.3      0.149Oil and grease.......................      30           10        3.73TSS..................................      38           15        7.47pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of sand reclaimed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]

§ 464.33   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/1,000 kkg or lb/million lb of sand reclaimed; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0437        0.0165------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\  .......Copper (T).............................        0.29        0.16   0.0029Lead (T)...............................        0.53        0.26   0.0067Zinc (T)...............................        0.98        0.37   0.0116------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.33/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0656        0.025------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Maximum                                           Maximum       for      Annual                                          for any 1    monthly   average                                             day       average     \1\------------------------------------------------------------------------                                         (mg/l) \2\  (mg/l) \2\Copper (T).............................        0.29        0.16   0.0029Lead (T)...............................        0.79        0.39   0.0098Zinc (T)...............................        1.47        0.56   0.0179------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.33/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/100 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138        0.0076Lead (T)....................................        0.0252        0.0124Zinc (T)....................................        0.0466        0.0176------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0031Lead (T).............................       0.53         0.26     0.0071Zinc (T).............................       0.98         0.37     0.0124------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138        0.0076Lead (T)....................................        0.0376        0.0185Zinc (T)....................................        0.0699        0.0266------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0031Lead (T).............................       0.79         0.39     0.0105Zinc (T).............................       1.47         0.56     0.019------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.398          0.195Zinc (T)..................................         0.736          0.278Total phenols.............................         0.646          0.225------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0488Lead (T).............................       0.53         0.26     0.113Zinc (T).............................       0.98         0.37     0.195Total phenols........................       0.86         0.3      0.15------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.09/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.593          0.293Zinc (T)..................................         1.1            0.421Total phenols.............................         0.656          0.225------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0488Lead (T).............................       0.79         0.39     0.165Zinc (T).............................       1.47         0.56     0.3Total phenols........................       0.86         0.3      0.15------------------------------------------------------------------------\1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.09/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         5.84           2.86Zinc (T)..................................        10.8            4.07------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.716Lead (T)...........................       0.53         0.26       1.65Zinc (T)...........................       0.98         0.37       2.86------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         8.7            4.3Zinc (T)..................................        16.2            6.17------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.716Lead (T)...........................       0.79         0.39       2.42Zinc (T)...........................       1.47         0.56       4.41------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         1.86           0.911Zinc (T)..................................         3.44           1.3Total Phenols.............................         3.01           1.05------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\   .........Copper (T).........................       0.29         0.16       0.228Lead (T)...........................       0.53         0.26       0.526Zinc (T)...........................       0.98         0.37       0.911Total Phenols......................       0.86         0.3        0.701------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed\2\ These concentrations must be multiplied by the ratio of (0.42/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         2.77           1.37Zinc (T)..................................         5.15           1.96Total Phenols.............................         3.01           1.05------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\   .........Copper (T).........................       0.29         0.16       0.228Lead (T)...........................       0.79         0.39       0.771Zinc (T)...........................       1.47         0.56       1.4Total Phenols......................       0.86         0.3        0.701------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.0783        0.0384Zinc (T)....................................        0.145         0.0546------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0096Lead (T).............................       0.53         0.26     0.0222Zinc (T).............................       0.98         0.37     0.0384------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (17.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.117         0.0576Zinc (T)....................................        0.217         0.0827------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0096Lead (T).............................       0.79         0.39     0.0325Zinc (T).............................       1.47         0.56     0.0591------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (17.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527        0.0291Lead (T)....................................        0.0964        0.0473Zinc (T)....................................        0.178         0.0673------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0118Lead (T).............................       0.53         0.26     0.0273Zinc (T).............................       0.98         0.37     0.0473------------------------------------------------------------------------\1\ Kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527        0.0291Lead (T)....................................        0.144         0.0709Zinc (T)....................................        0.267         0.102------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0118Lead (T).............................       0.79         0.39     0.04Zinc (T).............................       1.47         0.56     0.0728------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting malleable iron where greater than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.396          0.194Zinc (T)..................................         0.732          0.276Total Phenols.............................         0.642          0.224------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.0485Lead (T)...........................       0.53         0.26       0.112Zinc (T)...........................       0.98         0.37       0.194Total Phenols......................       0.86         0.3        0.149------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of sand reclaimed) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.59           0.291Zinc (T)..................................         1.1            0.418Total Phenols.............................         0.642          0.224------------------------------------------------------------------------
                                  PSNS------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0485Lead (T).............................       0.79         0.39     0.164Zinc (T).............................       1.47         0.56     0.299Total Phenols........................       0.86         0.3      0.149------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of sand reclaimed) for a specific plant.

[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]

§ 464.34   New source performance standards.
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Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/1,000 kkg or lb/million lb of sand reclaimed; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.

(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0437        0.0165Oil and grease..............................        1.34          0.446TSS.........................................        0.67          0.536pH..........................................    (\1\)        (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0029Lead (T).............................       0.53         0.26     0.0067Zinc (T).............................       0.98         0.37     0.0116Oil and grease.......................      30           10        0.223TTS..................................      15           12        0.116pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.33/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0656        0.025Oil and grease..............................        1.34          0.446TSS.........................................        1.7           0.67pH..........................................    (\1\)        (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0029Lead (T).............................       0.79         0.39     0.0098Zinc (T).............................       1.47         0.56     0.0179Oil and grease.......................      30           10        0.223TTS..................................      38           15        0.446pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.35/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138        0.0076Lead (T)....................................        0.0252        0.0124Zinc (T)....................................        0.0466        0.0176Oil and grease..............................        1.43          0.476TSS.........................................        0.713         0.571pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0031Lead (T).............................       0.53         0.26     0.0071Zinc (T).............................       0.98         0.37     0.0124Oil and grease.......................      30           10        0.238TSS..................................      15           12        0.124pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ Kg/1000 kkg (pounds per million pounds) of metal poured.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (5.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138        0.0076Lead (T)....................................        0.0376        0.0185Zinc (T)....................................        0.0699        0.0266Oil and grease..............................        1.43          0.476TSS.........................................        1.81          0.713pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0031Lead (T).............................       0.79         0.39     0.0105Zinc (T).............................       1.47         0.56     0.019Oil and grease.......................      30           10        0.238TSS..................................      38           15        0.476pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ Kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.398          0.195Zinc (T)..................................         0.736          0.278Total Phenols.............................         0.646          0.225Oil and grease............................        22.5            7.51TSS.......................................        11.3            9.01pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0488Lead (T).............................       0.53         0.26     0.113Zinc (T).............................       0.98         0.37     0.195Total phenols........................       0.86         0.3      0.15Oil and grease.......................      30           10        3.76TSS..................................      15           12        1.95pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (0.09/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.593          0.293Zinc (T)..................................         1.1            0.421Total phenols.............................         0.656          0.225Oil and grease............................        22.5            7.51TSS.......................................        28.5           11.3pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0488Lead (T).............................       0.79         0.39     0.165Zinc (T).............................       1.47         0.56     0.3Total phenols........................       0.86         0.3      0.15Oil and grease.......................      30           10        3.76TSS..................................      38           15        7.51pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (0.09/)  where is the actual normalized process wastewater flow (in gallons per  1,000 SCF of air scrubbed) for a specific plant.

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         5.84           2.86Zinc (T)..................................        10.8            4.07Oil and grease............................       330            110TSS.......................................       165            132pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.716Lead (T)...........................       0.53         0.26       1.65Zinc (T)...........................       0.98         0.37       2.86Oil and grease.....................      30           10         55.1TSS................................      15           12         28.6pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         8.7            4.3Zinc (T)..................................        16.2            6.17Oil and grease............................       330            110TSS.......................................       419            165pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.716Lead (T)...........................       0.79         0.39       2.42Zinc (T)...........................       1.47         0.56       4.41Oil and grease.....................      30           10         55.1TSS................................      38           15        110pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1,320/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         1.86           0.911Zinc (T)..................................         3.44           1.30Total phenols.............................         3.01           1.05Oil and grease............................       105             35TSS.......................................        52.6           42.1pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for                                     Maximum for    monthly      Annual                                      any 1 day     average     average------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.228Lead (T)...........................       0.53         0.26       0.526Zinc (T)...........................       0.98         0.37       0.911Total phenols......................       0.86         0.3        0.701Oil and grease.....................      30           10         17.5TSS................................      15           12          9.11pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         2.77           1.37Zinc (T)..................................         5.15           1.96Total phenols.............................         3.01           1.05Oil and grease............................       105             35TSS.......................................       133             52.6pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for                                     Maximum for    monthly      Annual                                      any 1 day     average     average------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.29         0.16       0.228Lead (T)...........................       0.79         0.39       0.771Zinc (T)...........................       1.47         0.56       1.4Total phenols......................       0.38         0.3        0.701Oil and grease.....................      30           10         17.5TSS................................      38           15         35pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.0783        0.0384Zinc (T)....................................        0.0145        0.0546Oil and grease..............................        4.43          1.48TSS.........................................        2.22          1.77pH..........................................    (\1\)        (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \1\Copper (T)...........................       0.29         0.16     0.0096Lead (T).............................       0.53         0.26     0.0222Zinc (T).............................       0.98         0.37     0.0384Oil and grease.......................      30           10        0.738TSS..................................      15           12        0.384pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million) pounds of metal poured.\2\ These concentrations must be multiplied by the ratio of (17.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.117         0.0576Zinc (T)....................................        0.217         0.0827Oil and grease..............................        4.43          1.48TSS.........................................        5.61          2.22pH..........................................    (\1\)        (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                     Maxium for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/1) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0096Lead (T).............................       0.79         0.39     0.0325Zinc (T).............................       1.47         0.56     0.0591Oil and grease.......................      30           10        0.738TSS..................................      38           15        1.48pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million) pounds of metal poured.\2\ These concentrations must be multiplied by the ratio of (17.7/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527        0.0291Lead (T)....................................        0.0964        0.0473Zinc (T)....................................        0.178         0.0673Oil and grease..............................        5.46          1.82TSS.........................................        2.73          2.18pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.29         0.16     0.0118Lead (T).............................       0.53         0.26     0.0273Zinc (T).............................       0.98         0.37     0.0473Oil and grease.......................      30           10        0.909TSS..................................      15           12        0.473pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527        0.0291Lead (T)....................................        0.144         0.0709Zinc (T)....................................        0.267         0.102Oil and grease..............................        5.46          1.82TSS.........................................        6.91          2.73pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for                                       Maximum for    monthly     Annual                                        any 1 day     average    average------------------------------------------------------------------------                                       (mg/l) \2\   (mg/1) \2\Copper (T)...........................       0.29         0.16     0.0118Lead (T).............................       0.79         0.39     0.04Zinc (T).............................       1.47         0.56     0.0728Oil and grease.......................      30           10        0.909TSS..................................      38           15        1.82pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.396          0.194Zinc (T)..................................         0.732          0.276Total phenols.............................         0.642          0.224Oil and grease............................        22.4            7.47TSS.......................................        11.2            8.96pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0485Lead (T).............................       0.53         0.26     0.112Zinc (T).............................       0.98         0.37     0.194Total phenols........................       0.86         0.3      0.149Oil and grease.......................      30           10        3.73TSS..................................      15           12        1.94pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of sand reclaimed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.59           0.291Zinc (T)..................................         1.1            0.418Total phenols.............................         0.642          0.224Oil and grease............................        22.4            7.47TSS.......................................        28.4           11.2pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l)\2\    (mg/l)\2\Copper (T)...........................       0.29         0.16     0.0485Lead (T).............................       0.79         0.39     0.164Zinc (T).............................       1.47         0.56     0.299Total phenols........................       0.86         0.3      0.149Oil and grease.......................      30           10        3.73TSS..................................      38           15        7.47pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of sand reclaimed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]

§ 464.35   Pretreatment standards for existing sources.
top

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0437        0.0165------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0656        0.025------------------------------------------------------------------------

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138       0.0076Lead (T)....................................        0.0252       0.0124Zinc (T)....................................        0.0466       0.0176TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        1.43         0.476------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138       0.0076Lead (T)....................................        0.0376       0.0185Zinc (T)....................................        0.0699       0.0266TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        1.43         0.476------------------------------------------------------------------------

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.398          0.195Zinc (T)..................................         0.736          0.278Total Phenols.............................         0.646          0.225TTO.......................................         2.04           0.664Oil and Grease (for alternate monitoring).        22.5            7.51------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.593          0.293Zinc (T)..................................         1.1            0.421Total Phenols.............................         0.656          0.225TTO.......................................         2.04           0.664Oil and Grease (for alternate monitoring).        22.5            7.51------------------------------------------------------------------------

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         5.84           2.86Zinc (T)..................................        10.8            4.07TTO.......................................        13.2            4.3Oil and Grease (for alternate monitoring).       330            110------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         8.7            4.3Zinc (T)..................................        16.2            6.17TTO.......................................        13.2            4.3Oil and Grease (for alternate monitoring).       330            110------------------------------------------------------------------------

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         1.86           0.911Zinc (T)..................................         3.44           1.30Total phenols.............................         3.01           1.05TTO.......................................         8.34           2.73Oil and grease (for alternate monitoring).       105             35------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm                                            \3\ (pounds                                            per billion                                            SCF) of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         2.77           1.37Zinc (T)..................................         5.15           1.96Total phenols.............................         3.01           1.05TTO.......................................         8.34           2.73Oil and grease (for alternate monitoring).       105             35------------------------------------------------------------------------

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.0783        0.0384Zinc (T)....................................        0.145         0.0546TTO.........................................        0.0797        0.026Oil and grease (for alternate monitoring)...        4.43          1.48------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.117         0.0576Zinc (T)....................................        0.217         0.0827TTO.........................................        0.0797        0.026Oil and grease (for alternate monitoring)...        4.43          1.48------------------------------------------------------------------------

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527       0.0291Lead (T)....................................        0.0964       0.0473Zinc (T)....................................        0.178        0.0673TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        5.46         1.82------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527       0.0291Lead (T)....................................        0.144        0.0709Zinc (T)....................................        0.267        0.102TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        5.46         1.82------------------------------------------------------------------------

(i) West Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.396          0.194Zinc (T)..................................         0.732          0.276Total Phenols.............................         0.642          0.224TTO.......................................         1.18           0.386Oil and grease (for alternate monitoring).        22.4            7.47------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSES------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.59           0.291Zinc (T)..................................         1.1            0.418Total Phenols.............................         0.642          0.224TTO.......................................         1.18           0.386Oil and grease (for alternate monitoring).        22.4            7.47------------------------------------------------------------------------

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.36   Pretreatment standards for new sources.
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Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0437        0.0165------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0129        0.0071Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0656        0.025------------------------------------------------------------------------

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                            million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................        0.0138         0.0076Lead (T)..................................        0.0252         0.0124Zinc (T)..................................        0.0466         0.0176TTO.......................................        0.0257         0.00838Oil and Grease (for alternate monitoring).        1.43           0.476------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0138       0.0076Lead (T)....................................        0.0376       0.0185Zinc (T)....................................        0.0699       0.0266TTO.........................................        0.0257       0.00838Oil and Grease (for alternate monitoring)...        1.43         0.476------------------------------------------------------------------------

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.398          0.195Zinc (T)..................................         0.736          0.278Total Phenols.............................         0.646          0.225TTO.......................................         2.04           0.664Oil and Grease (for alternate monitoring).        22.5            7.51------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         0.218          0.12Lead (T)..................................         0.593          0.293Zinc (T)..................................         1.1            0.421Total Phenols.............................         0.656          0.225TTO.......................................         2.04           0.664Oil and Grease (for alternate monitoring).        22.5            7.51------------------------------------------------------------------------

(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         5.84           2.86Zinc (T)..................................        10.8            4.07TTO.......................................        13.2            4.3Oil and Grease (for alternate monitoring).       330            110------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         3.19           1.76Lead (T)..................................         8.7            4.3Zinc (T)..................................        16.2            6.17TTO.......................................        13.2            4.3Oil and Grease (for alternate monitoring).       330            110------------------------------------------------------------------------

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         1.86           0.911Zinc (T)..................................         3.44           1.3Total Phenols.............................         3.01           1.05TTO.......................................         8.34           2.73Oil and Grease (for alternate monitoring).       105             35------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.02           0.561Lead (T)..................................         2.77           1.37Zinc (T)..................................         5.15           1.96Total Phenols.............................         3.01           1.05TTO.......................................         8.34           2.73Oil and Grease (for alternate monitoring).       105             35------------------------------------------------------------------------

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.0783        0.0384Zinc (T)....................................        0.145         0.0546TTO.........................................        0.0797        0.026Oil and Grease (for alternate monitoring)...        4.43          1.48------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0428        0.0236Lead (T)....................................        0.117         0.0576Zinc (T)....................................        0.217         0.0827TTO.........................................        0.0797        0.026Oil and Grease (for alternate monitoring)...        4.43          1.48------------------------------------------------------------------------

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527       0.0291Lead (T)....................................        0.0964       0.0473Zinc (T)....................................        0.178        0.0673TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        5.46         1.82------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0527       0.0291Lead (T)....................................        0.144        0.0709Zinc (T)....................................        0.267        0.102TTO.........................................        0.0257       0.00838Oil and grease (for alternate monitoring)...        5.46         1.82------------------------------------------------------------------------

(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.396          0.194Zinc (T)..................................         0.732          0.276Total phenols.............................         0.642          0.224TTO.......................................         1.18           0.386Oil and grease (for alternate monitoring).        22.4            7.47------------------------------------------------------------------------

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

                                  PSNS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                                sand                                            reclaimed                                           -----------------------------Copper (T)................................         0.217          0.12Lead (T)..................................         0.59           0.291Zinc (T)..................................         1.10           0.418Total phenols.............................         0.642          0.224TTO.......................................         1.18           0.386Oil and grease (for alternate monitoring).        22.4            7.47------------------------------------------------------------------------
§ 464.37   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
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Subpart D—Zinc Casting Subcategory
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§ 464.40   Applicability; description of the zinc casting subcategory.
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The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from zinc casting operations as defined in §464.02(d).

§ 464.41   Specialized definitions.
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For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§464.45) and PSNS (§464.46) for the zinc subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:

(1) Casting Quench (§464.45(a) and §464.46(a)):

21. 2,4,6-trichlorophenol

22. para-chloro meta-cresol

31. 2,4-dichlorophenol

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

65. phenol

66. bis(2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

85. tetrachloroethylene

(2) Die Casting (§465.45(b) and §464.46(b)):

1. acenaphthene

21. 2,4,6-trichlorophenol

22. para-chloro meta-cresol

24. 2-chlorophenol

34. 2,4-dimethylphenol

44. methylene chloride (dichloromethane)

55. naphthalene

65. phenol

66. bis (2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

85. tetrachloroethylene

86. toluene

87. trichloroethylene

(3) Melting Furnace Scrubber (§464.45(c) and §464.46(c)):

31. 2,4-dichlorophenol

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

55. naphthalene

65. phenol

66. bis(2-ethylhexyl) phthalate

68. di-n-butyl phthalate

85. tetrachloroethylene

86. toluene

87. trichloroethylene

(4) Mold Cooling (§464.45(d) and §464.46(d)):

21. 2,4,6-trichlorophenol

22. para-chloro meta-cresol

31. 2,4-dichlorophenol

34. 2,4-dimethylphenol

39. fluoranthene

44. methylene chloride (dichloromethane)

65. phenol

66. bis(2-ethylhexyl) phthalate

68. di-n-butyl phthalate

70. diethyl phthalate

85. tetrachloroethylene

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.42   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to noncontinuous dischargers.

(a) Casting Quench Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0344        0.0187Lead (T)....................................        0.0353        0.0174Zinc (T)....................................        0.0509        0.0192Oil and grease..............................        1.34          0.446TSS.........................................        1.7           0.67pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/1) \2\   (mg/1) \2\Copper (T)...........................       0.77         0.42     0.0076Lead (T).............................       0.79         0.39     0.0098Zinc (T).............................       1.14         0.43     0.0121Oil and grease.......................      30           10        0.223TSS..................................      38           15        0.446pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pound per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.35/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Die Casting Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0068        0.0034Zinc (T)....................................        0.0098        0.0037Total phenols...............................        0.0074        0.0026Oil and grease..............................        0.259         0.0864TTS.........................................        0.328         0.13pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.0015Lead (T)...........................       0.79         0.39       0.0019Zinc (T)...........................       1.14         0.43       0.0023Total phenols......................       0.86         0.3        0.0017Oil and grease.....................      30           10          0.0432TSS................................      38           15          0.0864pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pound per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(c) Melting Furnace Scrubber Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                kg/62.3                                              millions Sm                                              \3\ (pounds                                              per billion                                              SCF) of air                                              scrubbed                                             ---------------------------Copper (T)..................................        1.56          0.852Lead (T)....................................        1.6           0.791Zinc (T)....................................        2.31          0.872Total Phenols...............................        1.74          0.608Oil and grease..............................       60.8          20.3TSS.........................................       77.1          30.4pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.345Lead (T)...........................       0.79         0.39       0.446Zinc (T)...........................       1.14         0.43       0.548Total Phenols......................       0.86         0.3        0.406Oil and grease.....................      30           10         10.1TSS................................      38           15         20.3pH.................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.243/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 SCF of air scrubbed for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(d) Mold Cooling Operations.

                        BPT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.304         0.166Lead (T)....................................        0.311         0.154Zinc (T)....................................        0.449         0.17Oil and grease..............................       11.8           3.94TSS.........................................       15             5.91pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.067Lead (T).............................       0.79         0.39     0.0867Zinc (T).............................       1.14         0.43     0.106Oil and grease.......................      30           10        1.97TSS..................................      38           15        3.94pH...................................   (\3\)        (\3\)       (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (47.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.43   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
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Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0344        0.0187Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0339        0.0129------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.0076Lead (T).............................       0.53         0.26     0.0067Zinc (T).............................       0.76         0.29     0.008------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.34/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(b) Die Casting Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0046        0.0022Zinc (T)....................................        0.0066        0.0025Total phenols...............................        0.0074        0.0026------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum for   Annual                                       Maximum for    monthly    average                                        any 1 day     average      \1\------------------------------------------------------------------------                                       (mg/l) \2\   (mg/l) \2\Copper (T)...........................       0.77         0.42     0.0015Lead (T).............................       0.53         0.26     0.0013Zinc (T).............................       0.76         0.29     0.0016Total phenols........................       0.86         0.3      0.0017------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(c) Melting Furnace Scrubber Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.56           0.852Lead (T)..................................         1.07           0.527Zinc (T)..................................         1.54           0.588Total phenolse............................         1.74           0.608------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                  Maximum for    Annual                                     Maximum for    monthly     average                                      any 1 day     average       \1\------------------------------------------------------------------------                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................       0.77         0.42       0.345Lead (T)...........................       0.53         0.26       0.304Zinc (T)...........................       0.76         0.29       0.365Total phenols......................       0.86         0.3        0.406------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.243/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

(d) Mold Cooling Operations.

                        BAT Effluent Limitations------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                               million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................         0.304         0.166Lead (T)....................................         0.209         0.103Zinc (T)....................................         0.3           0.114------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                    Maximum                                         Maximum      for       Annual                                        for any 1   monthly     average                                           day      average       \1\------------------------------------------------------------------------                                        (mg/l)\2\  (mg/l)\2\Copper (T)............................       0.77       0.42      0.067Lead (T)..............................       0.53       0.26      0.0591Zinc (T)..............................       0.76       0.29      0.071------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (47.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.44   New source performance standards.
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Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0344        0.0187Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0339        0.0129Oil and grease..............................        1.34          0.446TSS.........................................        0.67          0.536pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ----------------------------------------------------------------------------------------------------------------                                                                                    Maximum for                                                                     Maximum for      monthly     Annual average                                                                      any 1 day       average           \1\----------------------------------------------------------------------------------------------------------------                                                                     (mg/l)\2\    (mg/l)\2\Copper (T).........................................................       0.77            0.42            0.0076Lead (T)...........................................................       0.53            0.26            0.0067Zinc (T)...........................................................       0.76            0.29            0.008Oil and grease.....................................................      30              10               0.223TSS................................................................      15              12               0.116pH.................................................................   (\3\)           (\3\)           (\3\)----------------------------------------------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process  wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(b) Die Casting Operations.

                                  NSPS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0066        0.0036Lead (T)....................................        0.0046        0.0022Zinc (T)....................................        0.0066        0.0025Total phenols...............................        0.0074        0.0026Oil and grease..............................        0.259         0.0864TSS.........................................        0.13          0.104pH..........................................    (\1\)         (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ----------------------------------------------------------------------------------------------------------------                                                                                    Maximum for                                                                     Maximum for      monthly     Annual average                                                                      any 1 day       average           \1\----------------------------------------------------------------------------------------------------------------                                                                     (mg/l) \2\   (mg/l) \2\Copper (T).........................................................       0.77            0.42            0.0015Lead (T)...........................................................       0.53            0.26            0.0013Zinc (T)...........................................................       0.76            0.29            0.0016Total phenols......................................................       0.86            0.3             0.0017Oil and grease.....................................................      30              10               0.0432TSS................................................................      15              12               0.0225pH.................................................................   (\3\)           (\3\)           (\3\)----------------------------------------------------------------------------------------------------------------\1\kg/1,000 kkg (pounds per million pounds) of metal poured.\2\These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process  wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.\3\Within the range of 7.0 to 10.0 at all times.

(c) Melting Furnace Scrubber Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                               kg/62.3                                            million Sm\3\                                            (pounds per                                            billion SCF)                                              of air                                            scrubbed                                           -----------------------------Copper (T)................................         1.56           0.852Lead (T)..................................         1.07           0.527Zinc (T)..................................         1.54           0.588Total phenols.............................         1.74           0.608Oil and grease............................        60.8           20.3TSS.......................................        30.4           24.3pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ----------------------------------------------------------------------------------------------------------------                                                                                    Maximum for                                                                     Maximum for      monthly     Annual average                                                                      any 1 day       average           \1\----------------------------------------------------------------------------------------------------------------                                                                     (mg/l)\2\    (mg/l)\2\Copper (T).........................................................       0.77            0.42            0.345Lead (T)...........................................................       0.53            0.26            0.304Zinc (T)...........................................................       0.76            0.29            0.365Total phenols......................................................       0.86            0.3             0.406Oil and grease.....................................................      30              10              10.1TSS................................................................      15              12               5.27pH.................................................................   (\3\)           (\3\)           (\3\)----------------------------------------------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process  wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

(d) Mold Cooling Operations.

                                  NSPS------------------------------------------------------------------------                                                            Maximum for      Pollutant or pollutant property        Maximum for      monthly                                              any 1 day       average------------------------------------------------------------------------                                            kg/1,000 kkg                                            (pounds per                                             million                                            pounds) of                                            metal poured                                           -----------------------------Copper (T)................................         0.304          0.166Lead (T)..................................         0.209          0.103Zinc (T)..................................         0.3            0.114Oil and grease............................        11.8            3.94TSS.......................................         5.91           4.73pH........................................     (\1\)          (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
 ------------------------------------------------------------------------                                               Maximum for                                Maximum for      monthly        Annual                                 any 1 day       average     average \1\------------------------------------------------------------------------                                (mg/l) \2\   (mg/l) \2\Copper (T)....................       0.77            0.42         0.067Lead (T)......................       0.53            0.26         0.0591Zinc (T)......................       0.76            0.29         0.071Oil and grease................      30              10            1.97TSS...........................      15              12            1.03pH............................   (\3\)           (\3\)        (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (47.3/x)  where x is the actual normalized process wastewater flow (in gallons  per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.45   Pretreatment standards for existing sources.
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Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Casting Quench Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0344        0.0187Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0339        0.0129TTO.........................................        0.093         0.0304Oil and grease (for alternate monitoring)...        1.34          0.446------------------------------------------------------------------------

(b) Die Casting Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property          Maximum for    monthly                                                 any 1 day     average------------------------------------------------------------------------                                               kg/1,000 kkg                                               (pounds per                                               million                                               pounds of                                                 metal                                               poured)                                              --------------------------Copper (T)...................................        0.0066       0.0036Lead (T).....................................        0.0046       0.0022Zinc (T).....................................        0.0066       0.0025Total phenols................................        0.0074       0.0026TTO..........................................        0.0196       0.0064Oil and grease for alternate monitoring).....        0.259        0.0864------------------------------------------------------------------------

(c) Melting Furnace Scrubber Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                kg/62.3                                              million Sm                                              \3\ (pounds                                              per billion                                              SCF) of air                                              scrubbed                                             ---------------------------Copper (T)..................................        1.56          0.852Lead (T)....................................        1.07          0.527Zinc (T)....................................        1.54          0.588Total phenols...............................        1.74          0.608TTO.........................................        3.95          1.29Oil and grease for alternate monitoring)....       60.8          20.3------------------------------------------------------------------------

(d) Mold Cooling Operations.

                                  PSES------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.304         0.166Lead (T)....................................        0.209         0.103Zinc (T)....................................        0.3           0.114TTO.........................................        0.821         0.268Oil and grease for alternate monitoring)....       11.8           3.94------------------------------------------------------------------------
§ 464.46   Pretreatment standards for new sources.
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Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Quench Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.0344        0.0187Lead (T)....................................        0.0237        0.0116Zinc (T)....................................        0.0339        0.0129TTO.........................................        0.093         0.0304Oil and grease (for alternate monitoring)...        1.34          0.446------------------------------------------------------------------------

(b) Die Casting Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property          Maximum for    monthly                                                 any 1 day     average------------------------------------------------------------------------                                               kg/1,000 kkg                                               (pounds per                                               million                                               pounds) of                                               metal poured                                              --------------------------Copper (T)...................................        0.0066       0.0036Lead (T).....................................        0.0046       0.0022Zinc (T).....................................        0.0066       0.0025Total phenols................................        0.0074       0.0026TTO..........................................        0.0196       0.0064Oil and grease (for alternate monitoring)....        0.259        0.0864------------------------------------------------------------------------

(c) Melting Furnace Scrubber Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                                kg/62.3                                              million Sm                                              \3\ (pounds                                              per billion                                              SCF) of air                                              scrubbed                                             ---------------------------Copper (T)..................................        1.56          0.852Lead (T)....................................        1.07          0.527Zinc (T)....................................        1.54          0.588Total phenols...............................        1.74          0.608TTO.........................................        3.95          1.29Oil and grease (for alternate monitoring)...       60.8          20.3------------------------------------------------------------------------

(d) Mold Cooling Operations.

                                  PSNS------------------------------------------------------------------------                                                             Maximum for       Pollutant or pollutant property         Maximum for     monthly                                                any 1 day      average------------------------------------------------------------------------                                              kg/1,000 kkg                                              (pounds per                                              million                                              pounds) of                                              metal poured                                             ---------------------------Copper (T)..................................        0.304         0.166Lead (T)....................................        0.209         0.103Zinc (T)....................................        0.3           0.114TTO.........................................        0.821         0.268Oil and grease (for alternate monitoring)...       11.8           3.94------------------------------------------------------------------------

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

§ 464.47   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
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