B73/100
SAN LORENZO VALLEY WATER DIST — Water Quality Report 2026
Serving 21,145 people · California
Water Source
Surface Water
County
—
System ID
CA4410014
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 460.00 µg/L | — | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
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 SAN LORENZO VALLEY WATER DIST
Is SAN LORENZO VALLEY WATER DIST water safe to drink?
SAN LORENZO VALLEY WATER DIST water receives a grade of B (73/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SAN LORENZO VALLEY WATER DIST detected?
69 contaminants were tested in SAN LORENZO VALLEY WATER DIST's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SAN LORENZO VALLEY WATER DIST have any EPA violations?
Yes, SAN LORENZO VALLEY WATER DIST has 8 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, Other. 4 are health-based violations.
How many people does SAN LORENZO VALLEY WATER DIST serve?
SAN LORENZO VALLEY WATER DIST serves approximately 21,145 people, California.
What type of water does SAN LORENZO VALLEY WATER DIST provide?
SAN LORENZO VALLEY WATER DIST 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 CA4410014.
How does SAN LORENZO VALLEY WATER DIST compare to other utilities in California?
SAN LORENZO VALLEY WATER DIST scores 73/100 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.