Sierra Club v. West Virginia DEP, No. 22-1008 (4th Cir. 2023)
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This appeal is the latest installment in a series of challenges to Mountain Valley Pipeline, LLC’s (“MVP”) plans to build a natural gas pipeline. Because it intends to construct a portion of the pipeline in West Virginia, MVP obtained a Clean Water Act (“CWA”) certification from the West Virginia Department of Environmental Protection (the “Department”). The certification reflected the Department’s conclusion that MVP’s activities during the pipeline’s construction would not violate the state’s water quality standards. Disagreeing with that determination, landowners and members of various environmental organizations in the state (collectively, “Petitioners”) petitioned for review of the Department’s certification.
The Fourth Circuit vacated the certification, finding the Department’s justifications for its conclusions deficient. The court found that the Department’s reasonable assurance determination suffers from four interrelated failures: It did not (1) sufficiently address MVP’s violation history, (2) include conditions requiring compliance with the O&G CGP and SWPPP, (3) provide a reasoned basis for relying on EPA’s upland CGP, or (4) articulate an adequate explanation for forgoing location-specific antidegradation review. Considering these oversights, the Department’s conclusion that MVP’s in-stream construction would be conducted in a manner that will not violate state water standards were arbitrary and capricious.
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