Storm Water Construction General Permit Requirements
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Many links on this page are outside the epa.gov domain. 
On this page:
Overview
This Web Page provides links to relevant National Pollutant Discharge Elimination System (NPDES) storm water construction permit information for Idaho, Indian Country and most federal facilities in the Pacific Northwest. Alaska Department of Environmental Conservation, Washington Department of Ecology and Oregon Department of Environmental Quality are the NPDES permitting authorities in their jurisdictions.
How to Apply for a permit
- Read the Construction General Permit (CGP) (PDF) (77pp, 771K).
- Develop a StormWater Pollution Prevention Plan (SWPPP) for your construction site.
- Complete an endangered species determination for the project site (details are noted in the CGP).
- File a Notice Of Intent (NOI), which can be done electronically using this tool: Electronic Notice of Intent (eNOI)
- Implement the Best Management Practices (BMPs) outlined in the SWPPP.
Top of page
Forms
Top of page
Guidance
Top of page
State of Washington
Top of page
State of Oregon
Top of page
State of Idaho
Construction projects in Idaho must apply for coverage under EPA's Construction General Permit.
Top of page
State of Alaska
Top of page
Other Resources
Top of page
Presentations
Top of page
If you have questions about the CGP, please contact Julie Congdon (congdon.julie@epa.gov), 206.553.2752 or Margaret McCauley ( mccauley.margaret@epa.gov), 206.553-2752.