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2025 California Code
Water Code - WAT
DIVISION 7 - WATER QUALITY
CHAPTER 10 - Water Wells and Cathodic Protection Wells
ARTICLE 2 - Definitions
Section 13713.
Universal Citation:
CA Water Code § 13713 (2025)
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13713. “Geothermal heat exchange well,” as used in this chapter, means any uncased artificial excavation, by any method, that uses the heat exchange capacity of the earth for heating and cooling, in which excavation the ambient ground temperature is 30 degrees Celsius (86 degrees Fahrenheit) or less, and which excavation uses a closed loop fluid system to prevent the discharge or escape of its fluid into surrounding aquifers or other geologic formations. Geothermal heat exchange wells include ground source heat pump wells.
(Added by Stats. 1996, Ch. 581, Sec. 3. Effective January 1, 1997.)
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