A92/100
MORRO ROCK MUTUAL WATER CO — Water Quality Report 2026
Serving 2,181 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA4010015
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1993.
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 MORRO ROCK MUTUAL WATER CO
Is MORRO ROCK MUTUAL WATER CO water safe to drink?
MORRO ROCK MUTUAL WATER CO water receives a grade of A (92/100), which is considered excellent. 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 MORRO ROCK MUTUAL WATER CO detected?
1 contaminants were tested in MORRO ROCK MUTUAL WATER CO's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MORRO ROCK MUTUAL WATER CO have any EPA violations?
Yes, MORRO ROCK MUTUAL WATER CO has 1 EPA violation(s) on record, with the most recent in 1993. Violation types include TT. 1 are health-based violations.
How many people does MORRO ROCK MUTUAL WATER CO serve?
MORRO ROCK MUTUAL WATER CO serves approximately 2,181 people, California.
What type of water does MORRO ROCK MUTUAL WATER CO provide?
MORRO ROCK MUTUAL WATER CO 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 CA4010015.
How does MORRO ROCK MUTUAL WATER CO compare to other utilities in California?
MORRO ROCK MUTUAL WATER CO 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.