MILL CREEK WIA
PWS ID: CO0210017 · DUMONT, Colorado 80436
Population Served
67
Total Violations
370
Health-Based Violations
155
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 40
- County
- Clear Creek
- School/Daycare
- No
- MCL Violations
- 48
- Monitoring Violations
- 199
- Treatment Tech Violations
- 107
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 89 | 2010 |
| Surface Water Treatment Rule | MR | 34 | 2024 |
| Total Haloacetic Acids (HAA5) | MCL | 26 | 2020 |
| TTHM | MCL | 18 | 2018 |
| Lead and Copper Rule | TT | 15 | 2016 |
| Barium | MR | 13 | 2024 |
| Cadmium | MR | 13 | 2024 |
| Antimony, Total | MR | 13 | 2024 |
| Beryllium, Total | MR | 13 | 2024 |
| Selenium | MR | 13 | 2024 |
| Lead and Copper Rule | MR | 13 | 2018 |
| Arsenic | MR | 13 | 2024 |
| Chromium | MR | 13 | 2024 |
| Mercury | MR | 13 | 2024 |
| Thallium, Total | MR | 13 | 2024 |
| Nickel | MR | 10 | 2024 |
| Public Notice | Other | 8 | 2020 |
| Coliform (TCR) | MR | 7 | 2004 |
| Interim Enhanced Surface Water Treatment Rule | MR | 7 | 2024 |
| Coliform (TCR) | MCL | 4 | 2001 |
| E. COLI | MR | 3 | 2017 |
| TTHM | MR | 3 | 2020 |
| Fluoride | MR | 3 | 2002 |
| Interim Enhanced Surface Water Treatment Rule | TT | 3 | 2016 |
| Chlorine | MR | 2 | 2006 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.