What Can I Do?


  • Report any illegal discharges
  • Report any ineffective best management practices (BMPs) on CDOT construction sites to Rick Willard at 303-757-9343
  • Report any maintenance issues you see with CDOT permanent BMPs along the roadways to Rick Willard at 303-757-9343;
  • Report any activities happening at CDOT maintenance facilities that you think may impact water quality to Rick Willard at 303-757-9343;
  • Don’t litter on roadways;
  • Pick up your pet waste from rest areas;
  • Don’t pour anything down a storm drain, in roadside ditches, or in any other stormwater conveyance along the roadways;
  • Let us know your ideas on how we can do better!

improperly maintained
silt fence

material spill on
a construction site

Silt Fence Bad

Spilled material

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Additional resources


  • Utility Permits and Access Permits brochure
  • Report any illegal discharges;
  • Always close dumpster lids and don't wash them out so that the washwater enters a storm drain inlet;
  • Properly clean out grease traps;
  • Follow the power/pressure water guidelines. Power washing wastewaters require a permit from CDPHE and some municipalities consider these wastewaters illegal discharges. Try using dry cleaning methods for parking lots and sidewalks; and
  • Let us know opportunities to partner with you to protect water quality!
  • Additional resources:


Report an Illegal Discharge
  • Hotline: 303-512-4H2O

  • 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).

    Learn more.
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