OILDALE MWC Water Quality Report
Population
44,899
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
—
of 49,184 US systems
5-Year Record
⚠️ 17
violations recorded
F
Unsafe
Safety Grade
17 violations in the past 5 years, including 19 health-based
System Details
- PWSID
- CA1510015
- Population Served
- 44,899
- Water Source
- Surface Water
- Owner
- Private
- State
- California
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Nitrate | ⚠ Monitoring/Reporting | 3 |
| Haloacetic Acids (HAA5) | ✕ Health-Based | 12 |
| Contaminant 3100 | ✕ Health-Based | 3 |
| Antimony | ⚠ Monitoring/Reporting | 3 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 1 |
| Total Trihalomethanes (TTHMs) | ✕ Health-Based | 7 |
Violation History
2024
11
2023
6
2016
3
2015
3
2006
3
2001
3
Total violations on record: 29
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)
How does this compare?
This systemNational average
Grade F
Avg: B-C
29violations total
104% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 7× the national average.