EPA · discharge permits by watershed

Subbasin 10040104

• 22Current 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 22 current permits recorded here

By state

• Montana22

Watersheds inside this subbasin

• Watershed 10040104215
• Watershed 10040104074

The same permits, cut another way

The 22 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 10030104 56
• Subbasin 10030105 17
• 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 10040105 15
• Subbasin 10040106 6
• Subbasin 10040201 45
• Subbasin 10040202 16
• Subbasin 10040203 4
• Subbasin 10040204 8
• Subbasin 10040205 7
• Subbasin 10050002 5
• Subbasin 10050004 60
• Subbasin 10050005 18

Permits discharging here