A91/100
CAL AMERICAN WATER CO — Water Quality Report 2026
Serving 66,809 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA5610040
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022 – October 31, 2022Rule: Total Coliform 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 CAL AMERICAN WATER CO
Is CAL AMERICAN WATER CO water safe to drink?
CAL AMERICAN WATER CO water receives a grade of A (91/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CAL AMERICAN WATER CO detected?
69 contaminants were tested in CAL AMERICAN WATER CO's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CAL AMERICAN WATER CO have any EPA violations?
Yes, CAL AMERICAN WATER CO has 2 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, MCL. 1 are health-based violations.
How many people does CAL AMERICAN WATER CO serve?
CAL AMERICAN WATER CO serves approximately 66,809 people, California.
What type of water does CAL AMERICAN WATER CO provide?
CAL AMERICAN WATER CO 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 CA5610040.
How does CAL AMERICAN WATER CO compare to other utilities in California?
CAL AMERICAN WATER CO scores 91/100 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.