ANTONITO TOWN OF
Colorado — Community Water System — PWSID: CO0111100
System Information
| PWSID | CO0111100 |
| System Name | ANTONITO TOWN OF |
| System Type | Community Water System |
| Water Source | Ground Water Under Influence |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 20, 1979 |
| Last Reported | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | ANTONITO |
| ZIP Code | 81120 |
| Address | — |
| Organization | DURAN, ROSSI |
| Phone | 719-298-6114 |
Population & Service
| Population Served | 981 |
| Service Connections | 435 |
Drinking Water Violations (583)
This water system has 583 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2025 | Nov 30, 2025 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2025 | — | |
| Nov 1, 2025 | Nov 30, 2025 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2025 | — | |
| Nov 1, 2025 | — | RPT | No | No | — | — | — | Resolved | Dec 17, 2025 | — | |
| Nov 1, 2025 | Nov 30, 2025 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2025 | — | |
| Nov 1, 2025 | — | RPT | No | No | — | — | — | Resolved | Dec 17, 2025 | — | |
| Nov 1, 2025 | — | RPT | No | No | — | — | — | Resolved | Dec 17, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 17, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 17, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 17, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 15, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 15, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 15, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Feb 12, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Feb 12, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Feb 12, 2025 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2024 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Sep 1, 2023 | Sep 30, 2023 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | TT | — | Resolved | Sep 8, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | TT | — | Resolved | Sep 8, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | TT | — | Resolved | Sep 8, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2023 | — |
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.