Watershed · by permit type

General permit coverage discharge permits in subbasin 10020004

• 20Permits
• 22Permits in the subbasin
• 1States the subbasin touches

20 of the 22 Clean Water Act discharge permits in hydrologic subbasin 10020004 are filed as General permit coverage. A subbasin is a watershed unit, not a political one, so it crosses state lines: this one is named on permits in MT.

Where the subbasin lies

• MT 22 permits in the subbasin

Every discharge permit in subbasin 10020004 →

Figures from EPA’s ICIS-NPDES download.