C46/100
LAKE COUNTY CSA 2 - SPRING VALLEY — Water Quality Report 2026
Serving 1,531 people · California
Water Source
Surface Water
County
—
System ID
CA1710018
Violations
10
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
No violations in the past 5 years
Full EPA compliance since 2010.
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 LAKE COUNTY CSA 2 - SPRING VALLEY
Is LAKE COUNTY CSA 2 - SPRING VALLEY water safe to drink?
LAKE COUNTY CSA 2 - SPRING VALLEY water receives a grade of C (46/100), 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 LAKE COUNTY CSA 2 - SPRING VALLEY detected?
2 contaminants were tested in LAKE COUNTY CSA 2 - SPRING VALLEY's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does LAKE COUNTY CSA 2 - SPRING VALLEY have any EPA violations?
Yes, LAKE COUNTY CSA 2 - SPRING VALLEY has 10 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL, TT, MR. 9 are health-based violations.
How many people does LAKE COUNTY CSA 2 - SPRING VALLEY serve?
LAKE COUNTY CSA 2 - SPRING VALLEY serves approximately 1,531 people, California.
What type of water does LAKE COUNTY CSA 2 - SPRING VALLEY provide?
LAKE COUNTY CSA 2 - SPRING VALLEY 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 CA1710018.
How does LAKE COUNTY CSA 2 - SPRING VALLEY compare to other utilities in California?
LAKE COUNTY CSA 2 - SPRING VALLEY scores 46/100 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.