Resources

• Portal: for public water systems, their representatives, and laboratories to submit drinking water information to us.
• Monitoring schedules.
• AIMS Tool (Am I Missing Something)
  •  This tool can be used to determine whether routine total coliform and chlorine residual reporting requirements were met.
• Draft Consumer Confidence Reports (water quality reports).
• Colorado drinking water regulations (Regulation 11) | Facility operator regulation (Regulation 100).
• Technical Support for LCRR service line inventory and lead service line replacement planning for community and non-transient, non-community systems serving < 15,000 people. This program is full, and is currently operating on a waitlist. LCRR service line inventories are due by October 16, 2024.

Test your water

• Water testing.
• Water testing frequently requested information.
• List of certified drinking water laboratories certifications.

Data and Consumer Information

• Data and consumer information.
• Guide to finding water system information.

Guidance and forms

• Guidance and forms by topic.
• Need to update a system's contact, email, or address? Submit a contact update form (video instructions). Correspondence is emailed to the administrative contact, operators, and owner. Anything mailed is sent only to the administrative contact (excluding enforcement orders). Current contact information can be found using our guide to finding water system information.

Calculators

• CT for giardia and viruses | 90th Percentile for Lead and Copper.
• Locational Running Annual Average (LRAA) for TTHM and HAA5 | Total Organic Carbon (TOC) Removal Ratio.

Contacts