LOUISVILLE CITY OF Water Quality Report
Population
20,975
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 94%
of 49,184 US systems
5-Year Record
⚠️ 6
violations recorded
D
Poor
Safety Grade
6 violations in the past 5 years, including 4 health-based
System Details
- PWSID
- CO0107487
- Population Served
- 20,975
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Colorado
- EPA Region
- 8
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| 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 |
| Total Coliform | ⚠ Monitoring/Reporting | 2 |
| Contaminant 0300 | ✕ Health-Based | 2 |
| Contaminant 0200 | ✕ Health-Based | 2 |
| Contaminant 5200 | ⚠ Monitoring/Reporting | 2 |
Violation History
2024
2
2021
4
2018
1
2017
22
Total violations on record: 29
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride
UV Water Purifier
Kills bacteria and viruses without chemicals
Removes: Total Coliform
How does this compare?
This systemNational average
Grade D
Avg: B-C
29violations total
104% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 3× the national average.