EPA · discharge permits by watershed

Subbasin 10030105

• 17Current permits
• 1States
• 2Watersheds

A subbasin is a unit of the national Watershed Boundary Dataset, and water crosses state lines: this one carries permits in Montana. Each permit is placed by the outfall EPA names as its representative discharge point.

This subbasin contains 2 watersheds, each with its own page of permits. The table below is a sample of the 17 current permits recorded here

By state

• Montana17

Watersheds inside this subbasin

• Watershed 10030105028
• Watershed 10030105048

The same permits, cut another way

The 17 permits whose outfall sits in this subbasin, grouped by one attribute at a time: the class of permit, the Clean Water Act program it was issued under, the type of coverage, and the size of the discharger. Each figure below counts the permits in that group.

Other subbasins

• Subbasin 10020003 19
• Subbasin 10020004 22
• Subbasin 10020005 50
• Subbasin 10020006 15
• Subbasin 10020007 77
• Subbasin 10020008 716
• Subbasin 10030101 291
• Subbasin 10030102 173
• Subbasin 10030103 19
• Subbasin 10030104 56
• Subbasin 10030201 18
• Subbasin 10030202 24
• Subbasin 10030203 62
• Subbasin 10030204 13
• Subbasin 10030205 14
• Subbasin 10040101 10
• Subbasin 10040102 5
• Subbasin 10040103 62
• Subbasin 10040104 22
• Subbasin 10040105 15

Permits discharging here