B78/100
CITY OF PASO ROBLES WATER DIVISION — Water Quality Report 2026
Serving 31,176 people · California
Water Source
Surface Water
County
—
System ID
CA4010007
Violations
4
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.005 µg/L | 0.004 µg/L | Over Limit |
chlorate | 340.00 µg/L | — | Above Goal |
vanadium | 28.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 PASO ROBLES WATER DIVISION
Is CITY OF PASO ROBLES WATER DIVISION water safe to drink?
CITY OF PASO ROBLES WATER DIVISION water receives a grade of B (78/100), which is considered good. Out of 69 contaminants tested, 1 exceed EPA legal limits. 3 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF PASO ROBLES WATER DIVISION detected?
69 contaminants were tested in CITY OF PASO ROBLES WATER DIVISION's water. Notable contaminants include PFOA, chlorate, vanadium. 1 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does CITY OF PASO ROBLES WATER DIVISION have any EPA violations?
Yes, CITY OF PASO ROBLES WATER DIVISION has 4 EPA violation(s) on record, with the most recent in 2015. Violation types include MR, TT. 1 are health-based violations.
How many people does CITY OF PASO ROBLES WATER DIVISION serve?
CITY OF PASO ROBLES WATER DIVISION serves approximately 31,176 people, California.
What type of water does CITY OF PASO ROBLES WATER DIVISION provide?
CITY OF PASO ROBLES WATER DIVISION sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA4010007.
How does CITY OF PASO ROBLES WATER DIVISION compare to other utilities in California?
CITY OF PASO ROBLES WATER DIVISION scores 78/100 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.