F19/100
CERES, CITY OF — Water Quality Report 2026
Serving 54,513 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA5010028
Violations
15
Contaminant Test Results
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.024 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.012 µg/L | 0.004 µg/L | Over Limit |
chlorate | 260.00 µg/L | — | Above Goal |
vanadium | 42.00 µg/L | — | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About CERES, CITY OF
Is CERES, CITY OF water safe to drink?
CERES, CITY OF water receives a grade of F (19/100), which is considered failing. 2 contaminant(s) exceed EPA legal limits and 15 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CERES, CITY OF detected?
66 contaminants were tested in CERES, CITY OF's water. Notable contaminants include PFOS, PFOA, chlorate, vanadium. 2 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).
Does CERES, CITY OF have any EPA violations?
Yes, CERES, CITY OF has 15 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MCL. 11 are health-based violations.
How many people does CERES, CITY OF serve?
CERES, CITY OF serves approximately 54,513 people, California. The system provides water to 1 community: Ceres.
What type of water does CERES, CITY OF provide?
CERES, CITY OF sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA5010028.
How does CERES, CITY OF compare to other utilities in California?
CERES, CITY OF scores 19/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.