CITY OF FRESNO Water Quality Report
Population
545,716
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 43%
of 49,184 US systems
5-Year Record
✅ Clean
no violations
A
Safe
Safety Grade
0 violations in the past 5 years
System Details
- PWSID
- CA1010007
- Population Served
- 545,716
- Water Source
- Surface Water
- Owner
- Local Government
- State
- California
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Nitrate | ⚠ Monitoring/Reporting | 3 |
Violation History
2016
3
Total violations on record: 3
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
How does this compare?
This systemNational average
Grade A
Avg: B-C
3violations total
11% of national average
National avg: ~28 per system
🏙️ This is a large system — serving 82× more people than the national average.