On May 9, 2022, Region 10 issued an administrative order on consent to Riverside, Inc. for its Facility in Parma, Idaho. Riverside, Inc. violated the Clean Water Act when it engaged in industrial activities covered under EPA's and subsequently Idaho Department of Environmental Quality's Industrial Stormwater General Permit, but failed to file for permit coverage. Sand Hollow Creek, a water of the U.S. bisects the Facility. Discharges flow from the facility to Sand Hollow Creek and then to the following water bodies: Snake River, Columbia River, Pacific Ocean. Significant portions of the discharge path is through anodromous fish passage waters. To return to compliance, Respondent commits to conduct a study by July 1, 2022, to determine whether industrial activities at the Facility result in polluted stormwater discharges into Sand Hollow Creek. Study elements include mapping, collecting conventional and metal samples from stormwater and Sand Hollow Creek, and assessing the Facility?s soils and permeability. Respondent commits to subsequently apply for a Certificate of No Discharge or for permit coverage based on demonstrations that mitigation activities do or do not prevent stormwater discharges. The estimated cost of implementing this injunctive relief is $35,000. Actions taken by the facility will reduce total suspended solids by 4,657 pounds per year. .