General Construction Permit (COR400000) Renewal

As required under the Clean Water Act amendments of 1987, the Environmental Protection Agency (EPA) has established a framework for permitting municipal and industrial stormwater discharges. The Colorado program is referred to as the Colorado Discharge Permit System (CDPS). 

The division has permit regulations (5CCR 1002-61) in place that require stormwater discharges from construction activity to be covered under a permit. This includes all construction activity that results in land disturbance equal to or greater than one acre, or disturbance of less than one acre of total land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately disturb equal to or greater than one acre.

The current construction stormwater discharge general permit expires on March 31, 2024, and the division expects to renew the permit effective April 1, 2024. The permit outlines necessary compliance with water quality standards via practice-based limitations and requirements. The renewed permit will include updates made to add clarity. 

Prior to renewal, all permittees who have not done so must claim their facilities in Colorado Environmental Online Service (CEOS), the division’s online application system; this can be done at any time. Additionally, all permittees will be required to submit renewal applications using this system by January 1, 2024.  Do not submit a renewal application at this time; the division will notify permittees when this renewal application becomes available. Permits without renewal applications will be terminated.

How to get involved

Engagement overview

The stakeholder process will begin in Summer 2023. Sign up for email notifications to be contacted about engagement opportunities. 

Stakeholder meetings will begin in Summer 2023. Sign up for email notifications to be contacted about stakeholder meeting information.


For more information about the permit, contact Al Stafford at

For information about this webpage and general questions, email