C43/100
RIVERBANK, CITY OF — Water Quality Report 2026
Serving 24,834 people · California
Water Source
Groundwater
County
—
System ID
CA5010018
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
vanadium | 29.00 µg/L | — | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 1 — URGENTResolved
Exceeded the Maximum Contaminant Level (single sample)
When: November 1, 2021 – November 30, 2021Enforcement: 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 RIVERBANK, CITY OF
Is RIVERBANK, CITY OF water safe to drink?
RIVERBANK, CITY OF water receives a grade of C (43/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 14 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has RIVERBANK, CITY OF detected?
66 contaminants were tested in RIVERBANK, CITY OF's water. Notable contaminants include vanadium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does RIVERBANK, CITY OF have any EPA violations?
Yes, RIVERBANK, CITY OF has 14 EPA violation(s) on record, with the most recent in 2021. Violation types include MCL, MR. 10 are health-based violations.
How many people does RIVERBANK, CITY OF serve?
RIVERBANK, CITY OF serves approximately 24,834 people, California. The system provides water to 1 community: Riverbank.
What type of water does RIVERBANK, CITY OF provide?
RIVERBANK, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA5010018.
How does RIVERBANK, CITY OF compare to other utilities in California?
RIVERBANK, CITY OF scores 43/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our California state page for a full comparison of water systems.