A85/100
RUSSIAN RIVER COUNTY WATER DISTRICT — Water Quality Report 2026
Serving 4,150 people · California
Water Source
Groundwater
County
—
System ID
CA4910008
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.60 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2004.
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 RUSSIAN RIVER COUNTY WATER DISTRICT
Is RUSSIAN RIVER COUNTY WATER DISTRICT water safe to drink?
RUSSIAN RIVER COUNTY WATER DISTRICT water receives a grade of A (85/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has RUSSIAN RIVER COUNTY WATER DISTRICT detected?
32 contaminants were tested in RUSSIAN RIVER COUNTY WATER DISTRICT's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does RUSSIAN RIVER COUNTY WATER DISTRICT have any EPA violations?
Yes, RUSSIAN RIVER COUNTY WATER DISTRICT has 3 EPA violation(s) on record, with the most recent in 2004. Violation types include MCL, MR, Other. 1 are health-based violations.
How many people does RUSSIAN RIVER COUNTY WATER DISTRICT serve?
RUSSIAN RIVER COUNTY WATER DISTRICT serves approximately 4,150 people, California.
What type of water does RUSSIAN RIVER COUNTY WATER DISTRICT provide?
RUSSIAN RIVER 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 CA4910008.
How does RUSSIAN RIVER COUNTY WATER DISTRICT compare to other utilities in California?
RUSSIAN RIVER COUNTY WATER DISTRICT scores 85/100 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.