BLACK HAWK CITY OF Water Quality Report
Population
15,167
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 54%
of 49,184 US systems
5-Year Record
⚠️ 2
violations recorded
B
Good
Safety Grade
2 violations in the past 5 years
System Details
- PWSID
- CO0124147
- Population Served
- 15,167
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Colorado
- EPA Region
- 8
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Bromate | ⚠ Monitoring/Reporting | 3 |
| Contaminant 3015 | ⚠ Monitoring/Reporting | 1 |
| Nitrate | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2378 | ⚠ Monitoring/Reporting | 1 |
| Vinyl Chloride | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2955 | ⚠ Monitoring/Reporting | 1 |
| Trichloroethylene (TCE) | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2968 | ⚠ Monitoring/Reporting | 1 |
| Tetrachloroethylene (PCE) | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2976 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2977 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2979 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2980 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2981 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2982 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2983 | ⚠ Monitoring/Reporting | 1 |
| Chloramine | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2985 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2987 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2989 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2990 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2991 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2992 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2996 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 0999 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 0200 | ⚠ Monitoring/Reporting | 1 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 1 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 1 |
Violation History
2021
2
2020
5
2018
22
2016
1
2015
1
Total violations on record: 31
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Nitrate
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride
How does this compare?
This systemNational average
Grade B
Avg: B-C
31violations total
111% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 2× the national average.