A83/100
TEMESCAL VALLEY WATER DISTRICT — Water Quality Report 2026
Serving 21,971 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA3310074
Violations
9
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023Rule: Ground Water 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 TEMESCAL VALLEY WATER DISTRICT
Is TEMESCAL VALLEY WATER DISTRICT water safe to drink?
TEMESCAL VALLEY WATER DISTRICT water receives a grade of A (83/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has TEMESCAL VALLEY WATER DISTRICT detected?
69 contaminants were tested in TEMESCAL VALLEY WATER DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does TEMESCAL VALLEY WATER DISTRICT have any EPA violations?
Yes, TEMESCAL VALLEY WATER DISTRICT has 9 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 2 are health-based violations.
How many people does TEMESCAL VALLEY WATER DISTRICT serve?
TEMESCAL VALLEY WATER DISTRICT serves approximately 21,971 people, California.
What type of water does TEMESCAL VALLEY WATER DISTRICT provide?
TEMESCAL VALLEY 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 CA3310074.
How does TEMESCAL VALLEY WATER DISTRICT compare to other utilities in California?
TEMESCAL VALLEY WATER DISTRICT scores 83/100 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.