A91/100
CARMICHAEL WATER DISTRICT — Water Quality Report 2026
Serving 41,193 people · California
Water Source
Groundwater Under Influence of Surface Water
County
—
System ID
CA3410004
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 250.00 µg/L | — | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – September 12, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 CARMICHAEL WATER DISTRICT
Is CARMICHAEL WATER DISTRICT water safe to drink?
CARMICHAEL WATER DISTRICT water receives a grade of A (91/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CARMICHAEL WATER DISTRICT detected?
69 contaminants were tested in CARMICHAEL WATER DISTRICT's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CARMICHAEL WATER DISTRICT have any EPA violations?
Yes, CARMICHAEL WATER DISTRICT has 2 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, TT. 1 are health-based violations.
How many people does CARMICHAEL WATER DISTRICT serve?
CARMICHAEL WATER DISTRICT serves approximately 41,193 people, California.
What type of water does CARMICHAEL WATER DISTRICT provide?
CARMICHAEL WATER DISTRICT sources its water from groundwater under influence of surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA3410004.
How does CARMICHAEL WATER DISTRICT compare to other utilities in California?
CARMICHAEL WATER DISTRICT scores 91/100 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.