April 30, 2020

30 April 2020

District Court: EPA’s Withdrawal of Clean Water Act Proposed Determination Is Within Agency’s Enforcement Discretion

On April 17, 2020, a federal district court dismissed a suit brought by environmental groups in the groups’ long-running challenge to the Pebble gold and copper mine in Alaska. On July 21, 2014, Region 10 of the U.S. Environmental Protection Agency (EPA) had published a Notice of Proposed Determination under the Clean Water Act (CWA) that concluded the discharge of dredge or fill material associated with mining project may have an “unacceptable adverse effect” on fisheries. In the Proposed Determination, invoking Section 404(c) of the CWA, EPA purported to preemptively prevent the U.S. Army Corps of Engineers (Corps) from issuing a permit to allow development of the mine. On July 31, 2019, EPA changed course and withdrew the 2014 Proposed Determination.