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Upper Missouri Waterkeeper V. Epa, Clare Ols

Public Land & Resources Law Review

State water quality standards developed under the Clean Water Act play a key role in curtailing the negative environmental, economic, and human health impacts of water pollution. Under the state water quality regulatory framework, EPA may grant variances to state standards should the state demonstrate the compliance with its standards is infeasible for a certain pollutant discharger or waterbody. Montana DEQ developed a variance for nutrients based on evidence that compliance with those standards would cause economic harm. EPA approved Montana's nutrient pollutant variance, and Upper Missouri Waterkeeper challenged EPA's approval on the grounds that the variance violates the Clean …