Watershed · by major or minor

Minor dischargers discharge permits in subbasin 10170203

• 523Permits
• 563Permits in the subbasin
• 3States the subbasin touches

523 of the 563 Clean Water Act discharge permits in hydrologic subbasin 10170203 are filed as Minor dischargers. A subbasin is a watershed unit, not a political one, so it crosses state lines: this one is named on permits in SD, IA, MN.

Where the subbasin lies

• SD 495 permits in the subbasin
• IA 40 permits in the subbasin
• MN 28 permits in the subbasin

Other cuts of subbasin 10170203

• permit type: General permit coverage 467
• program: Storm Water Construction 424
• permit type: Individual permits 91
• program: POTW 44
• program: CAFO 23
• permit type: Associated permit records 4
• program: Biosolids 4
• major or minor: Major dischargers 3

Every discharge permit in subbasin 10170203 →

Figures from EPA’s ICIS-NPDES download.