A88/100
WATSONVILLE, CITY OF — Water Quality Report 2026
Serving 65,231 people · California
Water Source
Surface Water
County
—
System ID
CA4410011
Violations
1
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.80 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1993.
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 WATSONVILLE, CITY OF
Is WATSONVILLE, CITY OF water safe to drink?
WATSONVILLE, CITY OF water receives a grade of A (88/100), which is considered excellent. Out of 67 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WATSONVILLE, CITY OF detected?
67 contaminants were tested in WATSONVILLE, CITY OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does WATSONVILLE, CITY OF have any EPA violations?
Yes, WATSONVILLE, CITY OF has 1 EPA violation(s) on record, with the most recent in 1993. Violation types include MR.
How many people does WATSONVILLE, CITY OF serve?
WATSONVILLE, CITY OF serves approximately 65,231 people, California. The system provides water to 1 community: Watsonville.
What type of water does WATSONVILLE, CITY OF provide?
WATSONVILLE, CITY OF 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 CA4410011.
How does WATSONVILLE, CITY OF compare to other utilities in California?
WATSONVILLE, CITY OF scores 88/100 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.