B78/100
MADERA VALLEY WATER COMPANY — Water Quality Report 2026
Serving 6,494 people · California
Water Source
Groundwater
County
—
System ID
CA2010010
Violations
6
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2006.
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 MADERA VALLEY WATER COMPANY
Is MADERA VALLEY WATER COMPANY water safe to drink?
MADERA VALLEY WATER COMPANY water receives a grade of B (78/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has MADERA VALLEY WATER COMPANY detected?
31 contaminants were tested in MADERA VALLEY WATER COMPANY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MADERA VALLEY WATER COMPANY have any EPA violations?
Yes, MADERA VALLEY WATER COMPANY has 6 EPA violation(s) on record, with the most recent in 2006. Violation types include MR, MCL. 4 are health-based violations.
How many people does MADERA VALLEY WATER COMPANY serve?
MADERA VALLEY WATER COMPANY serves approximately 6,494 people, California.
What type of water does MADERA VALLEY WATER COMPANY provide?
MADERA VALLEY WATER COMPANY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA2010010.
How does MADERA VALLEY WATER COMPANY compare to other utilities in California?
MADERA VALLEY WATER COMPANY scores 78/100 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.