Watershed · by major or minor

Minor dischargers discharge permits in subbasin 18020001

• 4Permits
• 4Permits in the subbasin
• 1States the subbasin touches

4 of the 4 Clean Water Act discharge permits in hydrologic subbasin 18020001 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 OR.

Where the subbasin lies

• OR 4 permits in the subbasin

Other cuts of subbasin 18020001

• permit type: General permit coverage 3
• program: Storm Water Construction 3

Every discharge permit in subbasin 18020001 →

Figures from EPA’s ICIS-NPDES download.