DILLON, CO · Summit County
DILLON VALLEY DISTRICT Water System
Consumer Confidence Report status
DILLON VALLEY DISTRICT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for DILLON VALLEY DISTRICT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.
System facts
- System ID (PWSID)
- CO0159040
- System type
- Community Water System
- Population served
- 3,063
- Service connections
- 435
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
DILLON VALLEY DISTRICT is one of 305 community water systems in Colorado in the 501 to 3,300 people size category, serving 3,063 people from surface water.
As of August 1, 2026, its federal record holds 3 entries between 1994 and 2025, all of which EPA lists as closed.
All 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Surface Water Treatment Rules, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.
Violation history
Monitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
November 1, 2025 – November 17, 2025
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2025 – November 17, 2025
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1994 – February 28, 1994
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2025 – November 17, 2025 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2025 – November 17, 2025 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| February 1, 1994 – February 28, 1994 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 25, 2025State Violation/Reminder Notice17 linked violations
- April 14, 2025State Violation/Reminder Notice3 linked violations
- April 14, 2025State Public Notification requested4 linked violations
Common questions
Is DILLON VALLEY DISTRICT required to publish a Consumer Confidence Report?
- Yes. DILLON VALLEY DISTRICT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DILLON VALLEY DISTRICT’s next Consumer Confidence Report due?
- DILLON VALLEY DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DILLON VALLEY DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DILLON VALLEY DISTRICT.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
JUSTICH, ANGELIQUE
970-306-7233
DILLON, CO 80435