As discussed in prior blog posts, the Federal Circuits became split (Part 1) in 2018 on whether the Clean Water Act (“CWA” or the “Act”) regulates discharges of pollutants from point sources that reach navigable waters through nonpoint sources, such as groundwater. Recently, the U.S. Supreme Court granted certiorari in one of those Circuit decisions (Part 2), and the case is still in front of the Supreme Court. While U.S. EPA had requested comments on this and other issues (Part 3), the agency’s current position was unknown until recently. On April 15, 2019, EPA released an interpretive statement and corresponding press release providing new guidance on whether the CWA permitting requirements apply to discharges directly to groundwater (78 Fed. Reg. 16810 (April 23, 2019)).

Continue Reading CWA Series: Do Discharges to Groundwater Require a Permit? EPA just changed its mind.