Supreme Court Holds Clean Water Act Can Apply To Groundwater
In a 6-3 decision penned by Justice Breyer, the United States Supreme Court held on April 23 that discharges of pollutants to groundwater that reach surface water may require a Section 402 permit under the Clean Water Act. The decision in County of Maui v. Hawaii Wildlife Fund (No. 18-260) resolved a split of the circuit courts and established a new “functional equivalent” test to determine when a permit is required. However, the Court explicitly left defining “functional equivalent” to…