A85/100
YREKA, CITY OF — Water Quality Report 2026
Serving 7,825 people · California
Water Source
Surface Water
County
—
System ID
CA4710011
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
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 YREKA, CITY OF
Is YREKA, CITY OF water safe to drink?
YREKA, CITY OF water receives a grade of A (85/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has YREKA, CITY OF detected?
31 contaminants were tested in YREKA, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does YREKA, CITY OF have any EPA violations?
Yes, YREKA, CITY OF has 4 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 2 are health-based violations.
How many people does YREKA, CITY OF serve?
YREKA, CITY OF serves approximately 7,825 people, California. The system provides water to 1 community: Yreka.
What type of water does YREKA, CITY OF provide?
YREKA, CITY OF 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 CA4710011.
How does YREKA, CITY OF compare to other utilities in California?
YREKA, CITY OF 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.