CITY OF OPELOUSAS WATER SYSTEM Water Quality Report
Population
20,388
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
—
of 49,184 US systems
5-Year Record
⚠️ 16
violations recorded
F
Unsafe
Safety Grade
16 violations in the past 5 years, including 14 health-based
System Details
- PWSID
- LA1097010
- Population Served
- 20,388
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Louisiana
- EPA Region
- 6
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 7 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 3 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 3 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 0700 | ✕ Health-Based | 14 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 2 |
Violation History
2025
1
2024
5
2021
10
2019
1
2018
4
2016
3
2015
1
2014
7
2008
1
Total violations on record: 33
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: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
How does this compare?
This systemNational average
Grade F
Avg: B-C
33violations total
118% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 3× the national average.