Does a discharge of phosphorus from a new municipal wastewater treatment plant contribute to the impairment of listed impaired waters in violation of Clean Water Act regulations when the phosphorus increase from that discharge is offset by reduction from other sources?
Did the Minnesota Pollution Control Agency act lawfully in defining a “reservoir” on the basis of water residence time?
Can decentralized treatment be a “prudent and feasible alternative” to a wastewater treatment plant expansion in order to prohibit an expanded discharge to an Outstanding Resource Value Water?
May a single Total Maximum Daily Load be set for a basin encompassing a number of impaired reaches if it does not provide for attainment of water quality standards on each reach?
May a state enforce its water quality standards against the U.S. Army Corps. of Engineers on an interstate river?
Do the NPDES permits for Owatonna and Faribault comply with the MPCA’s phosphorus rule?
Did the MPCA’s general stormwater permit for small cities meet the requirements of the Clean Water Act?
Does the NPDES permit for St. Cloud comply with the MPCA’s phosphorus rule?
Does a wetland adjacent to an artificial channel 11 miles upstream of a navigable river fall under Clean Water Act jurisdiction?
Is a citizen plaintiff's claim to assess civil penalties moot once the defendants obtain an npdes permit and are reasonably unlikely to commit future violations of the Clean Water Act?
When is an oil discharge to a navigable waterway "reasonably forseeable" so as to require a spill prevention control and countermeasures plan under the Clean Water Act?
