A92/100
MENLO PARK MUNICIPAL WATER — Water Quality Report 2026
Serving 22,362 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA4110017
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/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 MENLO PARK MUNICIPAL WATER
Is MENLO PARK MUNICIPAL WATER water safe to drink?
MENLO PARK MUNICIPAL WATER water receives a grade of A (92/100), which is considered excellent. 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 MENLO PARK MUNICIPAL WATER detected?
69 contaminants were tested in MENLO PARK MUNICIPAL WATER's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MENLO PARK MUNICIPAL WATER have any EPA violations?
Yes, MENLO PARK MUNICIPAL WATER has 1 EPA violation(s) on record, with the most recent in 2015. Violation types include TT. 1 are health-based violations.
How many people does MENLO PARK MUNICIPAL WATER serve?
MENLO PARK MUNICIPAL WATER serves approximately 22,362 people, California. The system provides water to 1 community: Menlo Park.
What type of water does MENLO PARK MUNICIPAL WATER provide?
MENLO PARK MUNICIPAL WATER 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 CA4110017.
How does MENLO PARK MUNICIPAL WATER compare to other utilities in California?
MENLO PARK MUNICIPAL WATER scores 92/100 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.