Supreme Court Skips Challenge to EPA Clean Water Act Authority

A California man’s challenge to a $150,000 fine for polluting an Idaho river won’t get Supreme Court review after he argued that a lower court improperly relied on Chevron to interpret federal water law.

The high court rejected Shannon Poe’s petition for review Tuesday, just days after justices in a June 28 decision also tossed the standard of deferring to agency interpretations of federal laws as established in Chevron v. Natural Resources Defense Council.

Poe argued in his petition that the Ninth Circuit improperly found the Clean Water Act’s phrasing of “addition of any pollutant” ambiguous, and it applied ...