CALHAN TOWN OF
Colorado - Community Water System - PWSID: CO0121075
System Information
| PWSID | CO0121075 |
| System Name | CALHAN TOWN OF |
| 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 | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | CALHAN |
| ZIP Code | 80808 |
| Address | - |
| Organization | TOMPKINS, CINDY |
| Phone | 719-347-2586 |
Population & Service
| Population Served | 780 |
| Service Connections | 397 |
Drinking Water Violations (77)
This water system has 77 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, 2026 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2026 | - | |
| Jan 1, 2026 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2026 | - | |
| Jan 1, 2026 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2026 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Jul 3, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Jul 3, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Jul 3, 2025 | - | |
| Apr 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Apr 1, 2025 | - | |
| Apr 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Apr 1, 2025 | - | |
| Apr 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Apr 1, 2025 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Mar 12, 2022 | - | Other | No | No | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 12, 2022 | - | Other | No | No | - | - | - | Resolved | Mar 31, 2022 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 9, 2021 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 9, 2021 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 9, 2021 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 9, 2021 | - | |
| Nov 11, 2018 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Nov 11, 2018 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Oct 11, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2018 | - | |
| Oct 11, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2018 | - | |
| Oct 11, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2018 | - | |
| Oct 11, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2018 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Aug 28, 2012 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Aug 28, 2012 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Aug 28, 2012 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Aug 28, 2012 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | - | 0.4 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | - | 0.4 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | - | 0.4 mg/L | - | Resolved | Dec 31, 2013 | - |
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.