WQ municipal MS4 permits

 
Active MS4 permits:
Statewide general permit, non-standard permit, Cherry Creek Reservoir Basin general permit 
 
Requests for amendments, notice of transfer, withdrawal, application supplement, measurable goal guidance, Colorado phase II stormwater municipal resources, non-standard fact sheet, guidance for assuming permitting responsibilities, qualifying local programs guidance and application
 
Compliance forms, annual report forms, Low Risk Discharge Policy and guidance documents, compliance assistance guidance
 
Maps by county