PlainWater
States → Washington

CENTRALIA PUBLIC WORKS - WATER

PWS ID: WA5312200 · Centralia, Washington 98531

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
28,164
Total Violations
10
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
8,607
County
Lewis
School/Daycare
No
MCL Violations
0
Monitoring Violations
4
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 4 2018
Coliform (TCR) MR 2 1992
Gross Alpha, Excl. Radon and U MR 1 1979
Revised Total Coliform Rule MON 1 2022
Surface Water Treatment Rule TT 1 1992

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/20/2024 0.0052 µg/L 0.004 µg/L Detected
PFNA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/20/2024 <0.008 µg/L 0.008 µg/L Not Detected
HFPO-DA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 8/20/2024 0.0039 µg/L 0.003 µg/L Detected
PFBA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/20/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/20/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/20/2024 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 8/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
9Cl-PF3ONS 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
lithium 8/20/2024 <9 µg/L 9 µg/L Not Detected
6:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.