Ninth Circuit Holds Indirect Discharges Into Navigable Waters Violates the Clean Water Act
Do indirect discharges of pollutants into navigable waters amount to a violation of the Clean Water Act? On February 1st, the Court of Appeals for the Ninth Circuit held in Hawaii Wildlife Fund et al. v. County of Maui, No. 15-17447, that discharges of pollutants originating from a point source violate the Clean Water Act even if the pollutants first enter another means of conveyance—in this case groundwater—before entering into a navigable waterway. Despite recent EPA efforts to roll back certain environmental regulations, the court gave no deference to EPA’s amicus curiae proposed liability rule requiring a “direct hydrological connection” between the point source and the navigable water.
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