I realize the current administration is not likely to push hard for compliance, but aren't there federal laws with allowed water pollution levels enforced by th

I realize the current administration is not likely to push hard for compliance, but aren't there federal laws with allowed water pollution levels enforced by the EPA? Maybe Wisconsin has stricter rules that are being waived (and can a governor just waive laws passed by the state's assembly?) but in an article this long some actual information on that would have been nice. Something like "The Wisconson state regulation of only 50ppb of chromium in discharge water will be waived and the federal rule of 60ppb will be used instead."