CITY OF STOCKTON Water Quality Report
F
Unsafe
Safety Grade
16 violations in the past 5 years, including 18 health-based
System Details
- PWSID
- CA3910012
- Population Served
- 191,302
- Water Source
- Surface Water
- Owner
- Local Government
- State
- California
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 3100 | ⚠ Monitoring/Reporting | 3 |
| Total Trihalomethanes (TTHMs) | ✕ Health-Based | 14 |
| Contaminant 0200 | ✕ Health-Based | 3 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 1 |
| Nitrate | ⚠ Monitoring/Reporting | 3 |
| Contaminant 5200 | ✕ Health-Based | 2 |
Violation History
2024
5
2023
10
2021
1
2016
3
2013
4
2005
3
2001
1
Total violations on record: 27
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)