B66/100
CITY OF FRESNO — Water Quality Report 2026
Serving 545,716 people · California
Water Source
Surface Water
County
—
System ID
CA1010007
Violations
11
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
vanadium | 22.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 CITY OF FRESNO
Is CITY OF FRESNO water safe to drink?
CITY OF FRESNO water receives a grade of B (66/100), which is considered good. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF FRESNO detected?
76 contaminants were tested in CITY OF FRESNO's water. Notable contaminants include vanadium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF FRESNO have any EPA violations?
Yes, CITY OF FRESNO has 11 EPA violation(s) on record, with the most recent in 2016. Violation types include MR, MCL. 5 are health-based violations.
How many people does CITY OF FRESNO serve?
CITY OF FRESNO serves approximately 545,716 people, California. The system provides water to 1 community: Fresno.
What type of water does CITY OF FRESNO provide?
CITY OF FRESNO sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA1010007.
How does CITY OF FRESNO compare to other utilities in California?
CITY OF FRESNO scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our California state page for a full comparison of water systems.