A86/100
CITY OF SANTA CLARA — Water Quality Report 2026
Serving 130,746 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA4310012
Violations
3
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 1995.
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 CITY OF SANTA CLARA
Is CITY OF SANTA CLARA water safe to drink?
CITY OF SANTA CLARA water receives a grade of A (86/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF SANTA CLARA detected?
76 contaminants were tested in CITY OF SANTA CLARA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF SANTA CLARA have any EPA violations?
Yes, CITY OF SANTA CLARA has 3 EPA violation(s) on record, with the most recent in 1995. Violation types include TT, Other. 2 are health-based violations.
How many people does CITY OF SANTA CLARA serve?
CITY OF SANTA CLARA serves approximately 130,746 people, California. The system provides water to 1 community: Santa Clara.
What type of water does CITY OF SANTA CLARA provide?
CITY OF SANTA CLARA 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 CA4310012.
How does CITY OF SANTA CLARA compare to other utilities in California?
CITY OF SANTA CLARA scores 86/100 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.