A81/100
SAN MIGUELITO MWC — Water Quality Report 2026
Serving 1,600 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA4010003
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.52 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 SAN MIGUELITO MWC
Is SAN MIGUELITO MWC water safe to drink?
SAN MIGUELITO MWC water receives a grade of A (81/100), which is considered excellent. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SAN MIGUELITO MWC detected?
2 contaminants were tested in SAN MIGUELITO MWC's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does SAN MIGUELITO MWC have any EPA violations?
Yes, SAN MIGUELITO MWC has 3 EPA violation(s) on record, with the most recent in 2023. Violation types include MCL, MR. 2 are health-based violations.
How many people does SAN MIGUELITO MWC serve?
SAN MIGUELITO MWC serves approximately 1,600 people, California.
What type of water does SAN MIGUELITO MWC provide?
SAN MIGUELITO MWC 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 CA4010003.
How does SAN MIGUELITO MWC compare to other utilities in California?
SAN MIGUELITO MWC scores 81/100 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.