SAN LUIS WSD
Colorado — Community Water System — PWSID: CO0112900
System Information
| PWSID | CO0112900 |
| System Name | SAN LUIS WSD |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 20, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Colorado |
| City | SAN LUIS |
| ZIP Code | 81152 |
| Address | — |
| Organization | MARTINEZ, SHANTAE |
| Phone | 719-672-4100 |
Population & Service
| Population Served | 629 |
| Service Connections | 414 |
Drinking Water Violations (24)
This water system has 24 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2022 | Dec 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2022 | Dec 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2022 | Dec 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2022 | Dec 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2022 | Dec 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2022 | Dec 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 15, 2021 | Lead and Copper Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 15, 2021 | Lead and Copper Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 15, 2021 | Lead and Copper Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2020 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | Nitrate Rule |
| Feb 1, 2012 | Feb 29, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2012 | Total Coliform Rule |
| Feb 1, 2012 | Feb 29, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2012 | Total Coliform Rule |
| Feb 1, 2012 | Feb 29, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2012 | Total Coliform Rule |
| Feb 1, 2012 | Feb 29, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2012 | Total Coliform Rule |
| Feb 1, 2012 | Feb 29, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2012 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.