B77/100
CITY OF LOS BANOS — Water Quality Report 2026
Serving 47,419 people · California
Water Source
Groundwater
County
—
System ID
CA2410005
Violations
5
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
strontium | 2100.00 µg/L | — | Above Goal |
chlorate | 310.00 µg/L | — | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 2Resolved
Treatment technique violation
When: October 17, 2024Rule: Ground Water RuleEnforcement: Formal — state order issued
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 LOS BANOS
Is CITY OF LOS BANOS water safe to drink?
CITY OF LOS BANOS water receives a grade of B (77/100), which is considered good. Out of 66 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF LOS BANOS detected?
66 contaminants were tested in CITY OF LOS BANOS's water. Notable contaminants include strontium, chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does CITY OF LOS BANOS have any EPA violations?
Yes, CITY OF LOS BANOS has 5 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MCL. 3 are health-based violations.
How many people does CITY OF LOS BANOS serve?
CITY OF LOS BANOS serves approximately 47,419 people, California. The system provides water to 1 community: Los Banos.
What type of water does CITY OF LOS BANOS provide?
CITY OF LOS BANOS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA2410005.
How does CITY OF LOS BANOS compare to other utilities in California?
CITY OF LOS BANOS scores 77/100 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.