SAN LUIS, CO · Costilla County
SAN LUIS WSD Water System
Consumer Confidence Report status
SAN LUIS WSD 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 SAN LUIS WSD.
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)
- CO0112900
- System type
- Community Water System
- Population served
- 629
- Service connections
- 414
- Ownership
- local government
- Water source
- groundwater (wells)
SAN LUIS WSD is one of 305 community water systems in Colorado in the 501 to 3,300 people size category, serving 629 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2022, all of which EPA lists as closed. Nothing has been added since 2022.
All 1 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 Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2022
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2022 – December 31, 2022 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 2, 2022State Violation/Reminder Notice4 linked violations
- January 20, 2021State Public Notification requested3 linked violations
- January 20, 2021State Public Notification requested3 linked violations
- January 14, 2021State Public Notification requested3 linked violations
- February 27, 2012State Violation/Reminder Notice4 linked violations
- January 11, 2007State Compliance achieved2 linked violations
- December 3, 2001State Public Notification requested1 linked violation
Common questions
Is SAN LUIS WSD required to publish a Consumer Confidence Report?
- Yes. SAN LUIS WSD 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 SAN LUIS WSD’s next Consumer Confidence Report due?
- SAN LUIS WSD’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN LUIS WSD have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN LUIS WSD.
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
MARTINEZ, SHANTAE
719-672-4100
SAN LUIS, CO 81152