Watershed · by program

Storm Water Small MS4s discharge permits in subbasin 12100301

• 3Permits
• 845Permits in the subbasin
• 1States the subbasin touches

3 of the 845 Clean Water Act discharge permits in hydrologic subbasin 12100301 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 TX.

Where the subbasin lies

• TX 845 permits in the subbasin

Other cuts of subbasin 12100301

• major or minor: Minor dischargers 840
• permit type: General permit coverage 831
• program: Storm Water Construction 531
• program: Storm Water Industrial 266
• permit type: Individual permits 14
• major or minor: Major dischargers 4
• program: POTW 3

Every discharge permit in subbasin 12100301 →

Figures from EPA’s ICIS-NPDES download.