In the Matter of the Denial of Contested Case Hearing Requests & Issuance of National Pollutant Discharge Elimination SystemAnnotate this Case
The Supreme Court held that an action taken by the Minnesota Pollution Control Agency (MPCA) in issuing a National Pollutant Discharge Elimination System/State Disposal System permit was arbitrary and capricious and that the permit did not comply with a Minnesota rule addressing wastewater discharges to groundwater, Minn. R. 7060.0600, subp. 2.
At issue was the MPCA's issuance of the permit for a Poly Met Mining, Inc. project. The court of appeals reversed in part, concluding that the MPCA failed properly to consider whether the federal Clean Water Act (CWA) applied to future discharges from Poly Met's facility to groundwater. The Supreme Court remanded the cause, holding (1) remand was required because there were suggestions that the MPCA did not properly consider whether the permit complies with the CWA and that the MPCA did not genuinely engage in reasoned decision-making; (2) remand was required for consideration of whether a variance was available to allow the planned discharge to the unsaturated zone within the containment system; and (3) the prohibition on injecting polluted water directly to the groundwater saturated zone for long-term storage did not apply in this case.