Drinking water compliance assurance

We're responsible for determining whether Colorado public water systems are in compliance with regulatory requirements.
  • All public water systems must maintain a Treatment Operator (if applicable) and Distribution System Operator (if applicable).
  • Responsible operators are located on the public water system monitoring schedule and may be updated by submitting the Drinking Water Contact Update Form.
  • To search for operator certification information, please visit the CCWP.

Contact us

  • Drinking water emergencies.
  • Call 303-692-3308 for the following high results (potential acute situations):
    • Positive coliform or Positive E. coli.
    • Nitrate greater than or equal to 10.0 mg/L or Nitrite greater than or equal to 1.0 mg/L.
    • Surface water high turbidity or inadequate disinfection.
    • Chlorine dioxide greater than or equal to 0.8 mg/L or Chlorite greater than or equal to 1.0 mg/L.
  • General phone: 303-692-3556.
  • Individual Contacts:
    • Public water system's search by county and type to find your primary compliance contact.