Watershed · by program

Storm Water Small MS4s discharge permits in subbasin 10030101

• 6Permits
• 291Permits in the subbasin
• 1States the subbasin touches

6 of the 291 Clean Water Act discharge permits in hydrologic subbasin 10030101 are filed as Storm Water Small MS4s. 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 282 permits in the subbasin

Other cuts of subbasin 10030101

• major or minor: Minor dischargers 239
• permit type: General permit coverage 225
• program: Storm Water Construction 143
• permit type: State-issued individual permits 38
• program: Storm Water Industrial 32
• permit type: Individual permits 18
• permit type: Master general permits 9
• program: POTW 9

Every discharge permit in subbasin 10030101 →

Figures from EPA’s ICIS-NPDES download.