D25/100
WOODLAKE, CITY OF — Water Quality Report 2026
Serving 7,846 people · California
Water Source
Groundwater
County
—
System ID
CA5410020
Violations
19
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 WOODLAKE, CITY OF
Is WOODLAKE, CITY OF water safe to drink?
WOODLAKE, CITY OF water receives a grade of D (25/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 19 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WOODLAKE, CITY OF detected?
31 contaminants were tested in WOODLAKE, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does WOODLAKE, CITY OF have any EPA violations?
Yes, WOODLAKE, CITY OF has 19 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, MON, MCL. 14 are health-based violations.
How many people does WOODLAKE, CITY OF serve?
WOODLAKE, CITY OF serves approximately 7,846 people, California. The system provides water to 1 community: Woodlake.
What type of water does WOODLAKE, CITY OF provide?
WOODLAKE, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA5410020.
How does WOODLAKE, CITY OF compare to other utilities in California?
WOODLAKE, CITY OF scores 25/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.