If San Francisco wins, it will have huge consequences. This permit language is included in thousands of other permits across the country and is an important backstop in cases where the permitting agency doesn't know about or can't craft specific limits for every single pollutant in the discharge

DC, Chicago, etc.: yes dealing with combined sewer overflow is a pain but it's important to maintain and repair local water quality so it's well worth it SF: hold my beer

It's very frustrating that San Francisco, a city that's usually considered environmentally progressive, brought this case. They teed the Court up to rip another hole in the Clean Water Act only two terms after it severely limited the law's geographic scope in Sackett v. EPA (2023)