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WQ construction compliance assistance and guidance

Permit for stormwater discharges associated with construction activities.

Link to COR400000 Permitting page.

Click here for information on the COR400000 permit renewal

Colorado Stormwater Excellence Program CSEP

Partnership with the Associated General Contractors of Colorado for compliance assistance and recognition of demonstrated excellence.

Compliance forms

Compliance assistance guidance documents

Discharge without a permit - policies and guidance documents applicable to the construction sector

Discharges addressed by the following policy documents may be identified in the Stormwater Management Plan for COR030000 stormwater construction projects as being allowed to occur at the project when in accordance with the criteria, requirements, and guidance provided.

​​Colorado House Bill 12-1119

Noncompliance Notifications


Please use the link below to submit your 24 hour notification and 5-day report for noncompliance related to the COR4000000 Construction Stormwater General Permit. This form should not be used to report spills that meet reportable quantity criteria or reach a state water. Those events should be reported to the spill hotline at 1-877-518-5608.

Spill reporting

Operator certification