B71/100
CENTRALIA PUBLIC WORKS - WATER — Water Quality Report 2026
Serving 28,164 people · Washington
Water Source
Groundwater
County
—
System ID
WA5312200
Violations
9
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.60 mg/L | 1.30 mg/L | Over Limit |
PFOS | 0.006 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – January 31, 2022Rule: Total Coliform 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 CENTRALIA PUBLIC WORKS - WATER
Is CENTRALIA PUBLIC WORKS - WATER water safe to drink?
CENTRALIA PUBLIC WORKS - WATER water receives a grade of B (71/100), which is considered good. Out of 67 contaminants tested, 2 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CENTRALIA PUBLIC WORKS - WATER detected?
67 contaminants were tested in CENTRALIA PUBLIC WORKS - WATER's water. Notable contaminants include PFOS, Copper (90th percentile). 2 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does CENTRALIA PUBLIC WORKS - WATER have any EPA violations?
Yes, CENTRALIA PUBLIC WORKS - WATER has 9 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, Other, MR. 1 are health-based violations.
How many people does CENTRALIA PUBLIC WORKS - WATER serve?
CENTRALIA PUBLIC WORKS - WATER serves approximately 28,164 people, Washington.
What type of water does CENTRALIA PUBLIC WORKS - WATER provide?
CENTRALIA PUBLIC WORKS - WATER sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5312200.
How does CENTRALIA PUBLIC WORKS - WATER compare to other utilities in Washington?
CENTRALIA PUBLIC WORKS - WATER scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Washington state page for a full comparison of water systems.