EPA · discharge permits by watershed
Ladder Creek-Skagit River (subwatershed 171100050408)
- 4Current permits
- 1States
A subwatershed is a unit of the national Watershed Boundary Dataset, and water crosses state lines: this one carries permits in Washington. Each permit is placed by the outfall EPA names as its representative discharge point.
By state
Permits discharging here
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| DIABLO LARGE ONSITE SEWAGE SYSTEM | WAR302655 | NEWHALEM | WA | Construction stormwater | Minor | Ladder Creek-Skagit River |
| DIABLO WAREHOUSE | WAR301266 | CONCRETE | WA | Construction stormwater | Minor | Ladder Creek-Skagit River |
| SEATTLE CITY LIGHT NEWHALEM MRWF & OFFIC | WA0029858 | NEWHALEM | WA | Publicly owned treatment works | Minor | Ladder Creek-Skagit River |
| SEATTLE CITY LIGHT NEWHALEM WWTP | WA0029670 | NEWHALEM | WA | Publicly owned treatment works | Minor | Ladder Creek-Skagit River |