BLACK HAWK CITY OF
Colorado — Community Water System — PWSID: CO0124147
System Information
| PWSID | CO0124147 |
| System Name | BLACK HAWK CITY OF |
| System Type | Community Water System |
| Water Source | Surface 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 | BLACK HAWK |
| ZIP Code | 80422 |
| Address | — |
| Organization | DALLAM, BRADLEY |
| Phone | 303-582-2237 |
Population & Service
| Population Served | 15,167 |
| Service Connections | 117 |
Drinking Water Violations (239)
This water system has 239 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 1.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Sep 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 1.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Sep 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 1.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MON | No | No | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MON | No | No | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MON | No | No | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 24, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 24, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 24, 2020 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2018 | — |
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.