A96/100
RANCHO CALIFORNIA WATER DISTRICT — Water Quality Report 2026
Serving 146,147 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA3310038
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
vanadium | 31.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1997.
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 RANCHO CALIFORNIA WATER DISTRICT
Is RANCHO CALIFORNIA WATER DISTRICT water safe to drink?
RANCHO CALIFORNIA WATER DISTRICT water receives a grade of A (96/100), which is considered excellent. 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 RANCHO CALIFORNIA WATER DISTRICT detected?
76 contaminants were tested in RANCHO CALIFORNIA WATER DISTRICT's water. Notable contaminants include vanadium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does RANCHO CALIFORNIA WATER DISTRICT have any EPA violations?
Yes, RANCHO CALIFORNIA WATER DISTRICT has 1 EPA violation(s) on record, with the most recent in 1997. Violation types include MR.
How many people does RANCHO CALIFORNIA WATER DISTRICT serve?
RANCHO CALIFORNIA WATER DISTRICT serves approximately 146,147 people, California.
What type of water does RANCHO CALIFORNIA WATER DISTRICT provide?
RANCHO CALIFORNIA WATER DISTRICT 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 CA3310038.
How does RANCHO CALIFORNIA WATER DISTRICT compare to other utilities in California?
RANCHO CALIFORNIA WATER DISTRICT scores 96/100 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.