Image_excavator

Program News

Sign up for the MS4 Construction Program's quarterly newsletter to stay up to date with the latest program updates, news from HQ, and training information.

Register to Receive Newsletters View Past Newsletters

Report an Illicit Discharge

Hotline: 303-512-4426
Illegal discharges (aka, illicit discharges) emit into CDOT's storm drain system pollutants.
(e.g., oil, grease, fertilizers, pesticides, grass clippings, leaves, or odd smelling/colored substances)

Environmental Programs Branch News