A89/100
CENTRALIA PWS — Water Quality Report 2026
Serving 4,027 people · Missouri
Water Source
Groundwater
County
—
System ID
MO3010152
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
No violations in the past 5 years
Full EPA compliance since 2020.
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 PWS
Is CENTRALIA PWS water safe to drink?
CENTRALIA PWS water receives a grade of A (89/100), 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 CENTRALIA PWS detected?
31 contaminants were tested in CENTRALIA PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CENTRALIA PWS have any EPA violations?
Yes, CENTRALIA PWS has 4 EPA violation(s) on record, with the most recent in 2020. Violation types include Other, MCL. 1 are health-based violations.
How many people does CENTRALIA PWS serve?
CENTRALIA PWS serves approximately 4,027 people, Missouri. The system provides water to 1 community: Centralia.
What type of water does CENTRALIA PWS provide?
CENTRALIA PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO3010152.
How does CENTRALIA PWS compare to other utilities in Missouri?
CENTRALIA PWS scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.