A89/100
SAN JOAQUIN COUNTY-MOKELUMNE ACRES — Water Quality Report 2026
Serving 3,802 people · California
Water Source
Groundwater
County
—
System ID
CA3910017
Violations
0
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.013 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.008 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 SAN JOAQUIN COUNTY-MOKELUMNE ACRES
Is SAN JOAQUIN COUNTY-MOKELUMNE ACRES water safe to drink?
SAN JOAQUIN COUNTY-MOKELUMNE ACRES water receives a grade of A (89/100), which is considered excellent. Out of 31 contaminants tested, 2 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SAN JOAQUIN COUNTY-MOKELUMNE ACRES detected?
31 contaminants were tested in SAN JOAQUIN COUNTY-MOKELUMNE ACRES's water. Notable contaminants include PFOS, PFOA. 2 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does SAN JOAQUIN COUNTY-MOKELUMNE ACRES have any EPA violations?
No, SAN JOAQUIN COUNTY-MOKELUMNE ACRES has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does SAN JOAQUIN COUNTY-MOKELUMNE ACRES serve?
SAN JOAQUIN COUNTY-MOKELUMNE ACRES serves approximately 3,802 people, California.
What type of water does SAN JOAQUIN COUNTY-MOKELUMNE ACRES provide?
SAN JOAQUIN COUNTY-MOKELUMNE ACRES sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA3910017.
How does SAN JOAQUIN COUNTY-MOKELUMNE ACRES compare to other utilities in California?
SAN JOAQUIN COUNTY-MOKELUMNE ACRES scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our California state page for a full comparison of water systems.