A81/100
COBB AREA COUNTY WATER DISTRICT — Water Quality Report 2026
Serving 3,515 people · California
Water Source
Groundwater
County
—
System ID
CA1710012
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.50 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
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 COBB AREA COUNTY WATER DISTRICT
Is COBB AREA COUNTY WATER DISTRICT water safe to drink?
COBB AREA COUNTY WATER DISTRICT 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 COBB AREA COUNTY WATER DISTRICT detected?
2 contaminants were tested in COBB AREA COUNTY WATER DISTRICT's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does COBB AREA COUNTY WATER DISTRICT have any EPA violations?
Yes, COBB AREA COUNTY WATER DISTRICT has 7 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 1 are health-based violations.
How many people does COBB AREA COUNTY WATER DISTRICT serve?
COBB AREA COUNTY WATER DISTRICT serves approximately 3,515 people, California.
What type of water does COBB AREA COUNTY WATER DISTRICT provide?
COBB AREA COUNTY WATER DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA1710012.
How does COBB AREA COUNTY WATER DISTRICT compare to other utilities in California?
COBB AREA COUNTY WATER DISTRICT 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.