A100/100
CAL/AM WATER COMPANY - SAN MARINO — Water Quality Report 2026
Serving 47,995 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA1910139
Violations
0
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
vanadium | 21.90 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 CAL/AM WATER COMPANY - SAN MARINO
Is CAL/AM WATER COMPANY - SAN MARINO water safe to drink?
CAL/AM WATER COMPANY - SAN MARINO water receives a grade of A (100/100), 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 CAL/AM WATER COMPANY - SAN MARINO detected?
69 contaminants were tested in CAL/AM WATER COMPANY - SAN MARINO's water. Notable contaminants include vanadium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CAL/AM WATER COMPANY - SAN MARINO have any EPA violations?
No, CAL/AM WATER COMPANY - SAN MARINO has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does CAL/AM WATER COMPANY - SAN MARINO serve?
CAL/AM WATER COMPANY - SAN MARINO serves approximately 47,995 people, California.
What type of water does CAL/AM WATER COMPANY - SAN MARINO provide?
CAL/AM WATER COMPANY - SAN MARINO 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 CA1910139.
How does CAL/AM WATER COMPANY - SAN MARINO compare to other utilities in California?
CAL/AM WATER COMPANY - SAN MARINO scores 100/100 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.