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Programs
You are here:
  1. Home
  2. Programs
  3. Environmental
  4. Water Quality
  5. Water Quality Documents
  6. MS4 Program
Resources
  • CDOT MS4 Permit
  • CDOT MS4 Permit Fact Sheet 1
  • CDOT MS4 Permit Fact Sheet 2
  • CDOT MS4 Permit Mod2
  • CDOT MS4 Permit Fact Sheet Mod2
  • CDOT MS4 Permit Mod3
  • CDOT MS4 Permit Fact Sheet Mod3
  • CDOT MS4 Permit Mod4
  • CDOT MS4 Permit Fact Sheet Mod4
MS4 Program https://www.codot.gov/programs/environmental/water-quality/documents/ms4-program https://www.codot.gov/@@site-logo/siteLogo.png

MS4 Program

CDOT MS4 Permit
CDOT MS4 Permit Fact Sheet 1
CDOT MS4 Permit Fact Sheet 2
CDOT MS4 Permit Mod2
CDOT MS4 Permit Fact Sheet Mod2
CDOT MS4 Permit Mod3
CDOT MS4 Permit Fact Sheet Mod3
CDOT MS4 Permit Mod4
CDOT MS4 Permit Fact Sheet Mod4


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
  • Updated Federal Lands MOU May 23, 2022
  • Final Report Completed - Beaver Management Along Roads and Within the Right-of-Way Mar 29, 2022
  • CDOT 2021 Environmental Award Winners Announced Mar 02, 2022
  • Lisa Schoch promoted to Cultural Resources Section Manager Feb 15, 2022
  • Updated 2022 SB40 guidelines are now available Feb 15, 2022
Environmental Programs Branch News - More…
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