Public water system record

San Luis WSD

Serves San Luis, Costilla County, CO · 629 people served

Federal records show no health-based violations and 5 monitoring/reporting issues for San Luis WSD in the last ten years.

  • CO0112900
  • SAN LUIS
  • CO
  • 629 served

System profile

Source water Groundwater
ZIP 81152
EPA system ID CO0112900

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
5

Key facts

  • San Luis WSD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent enforcement action: boil water order by Colorado, February 2012.
  • Record on file since 2001, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 394 unknown out of 416 service lines.

Check whether San Luis WSD serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2021 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2020 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2020 Resolved

Full record since 2001

EPA's records for San Luis WSD go back to 2001. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 1 0
2010 to October 18, 2016 1 0
2020s 0 5

Most recent health-based violation before October 19, 2016: Total Coliform (acute), began February 2012, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform (acute)
Contaminant limit exceeded
Feb 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 2001 Resolved

Enforcement actions

Colorado regulators issued 1 boil water order to San Luis WSD in 2012. The most recent was a boil water order in February 2012.

Date By Action Violations covered
Feb 22, 2012 Colorado Boil water order 1 violation (1 health-based): Total Coliform

Where the water comes from

San Luis WSD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

San Luis WSD must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Colorado.