B70/100
MADERA CO MD10A-MADERA RANCHOS — Water Quality Report 2026
Serving 3,172 people · California
Water Source
Groundwater
County
—
System ID
CA2010008
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
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 CO MD10A-MADERA RANCHOS
Is MADERA CO MD10A-MADERA RANCHOS water safe to drink?
MADERA CO MD10A-MADERA RANCHOS water receives a grade of B (70/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MADERA CO MD10A-MADERA RANCHOS detected?
1 contaminants were tested in MADERA CO MD10A-MADERA RANCHOS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MADERA CO MD10A-MADERA RANCHOS have any EPA violations?
Yes, MADERA CO MD10A-MADERA RANCHOS has 7 EPA violation(s) on record, with the most recent in 2014. Violation types include MCL, MR. 5 are health-based violations.
How many people does MADERA CO MD10A-MADERA RANCHOS serve?
MADERA CO MD10A-MADERA RANCHOS serves approximately 3,172 people, California.
What type of water does MADERA CO MD10A-MADERA RANCHOS provide?
MADERA CO MD10A-MADERA RANCHOS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA2010008.
How does MADERA CO MD10A-MADERA RANCHOS compare to other utilities in California?
MADERA CO MD10A-MADERA RANCHOS scores 70/100 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.