In Part 1 of our Clean Water Act (CWA) Series, we reported on the circuit split between the Fourth, Sixth, and Ninth Federal Circuit Court of Appeals regarding whether indirect discharges to Waters of the United States (WOTUS) through groundwater required a CWA permit. On February 19, 2019, the Supreme Court agreed to hear arguments regarding “Whether the CWA requires a permit when pollutants originate from a point source but are conveyed to navigable waters by a nonpoint source, such as groundwater.” Read more about this case history and the legal arguments on the Emerging Energy Insights blog.