C54/100
CASITAS MUNICIPAL WATER DIST — Water Quality Report 2026
Serving 11,005 people · California
Water Source
Surface Water
County
—
System ID
CA5610024
Violations
10
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.42 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Unresolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2024 – December 31, 2024Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2022 – February 28, 2022Rule: Total Coliform RuleEnforcement: 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 CASITAS MUNICIPAL WATER DIST
Is CASITAS MUNICIPAL WATER DIST water safe to drink?
CASITAS MUNICIPAL WATER DIST water receives a grade of C (54/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 10 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CASITAS MUNICIPAL WATER DIST detected?
47 contaminants were tested in CASITAS MUNICIPAL WATER DIST's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does CASITAS MUNICIPAL WATER DIST have any EPA violations?
Yes, CASITAS MUNICIPAL WATER DIST has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, MON. 7 are health-based violations.
How many people does CASITAS MUNICIPAL WATER DIST serve?
CASITAS MUNICIPAL WATER DIST serves approximately 11,005 people, California.
What type of water does CASITAS MUNICIPAL WATER DIST provide?
CASITAS MUNICIPAL WATER DIST sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA5610024.
How does CASITAS MUNICIPAL WATER DIST compare to other utilities in California?
CASITAS MUNICIPAL WATER DIST scores 54/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our California state page for a full comparison of water systems.