PlainWater

West Sound Utility District #1

PWS ID: WA5302600 · Port Orchard, Washington 98366-5547

PFAS Detected

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

Population Served
28,928
Total Violations
148
Health-Based Violations
9
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
8,710
County
Kitsap
School/Daycare
No
MCL Violations
9
Monitoring Violations
136
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Pentachlorophenol MR 10 2002
Coliform (TCR) MCL 8 1997
Dalapon MR 5 2002
Dinoseb MR 5 2002
OXAMYL MR 5 2002
Aldicarb sulfoxide MR 5 2002
Carbofuran MR 5 2002
Methoxychlor MR 5 2002
Toxaphene MR 5 2002
Simazine MR 5 2002
Di(2-ethylhexyl) phthalate MR 5 2002
Heptachlor MR 5 2002
Aldicarb sulfone MR 5 2002
Aldicarb MR 5 2002
Endrin MR 5 2002
BHC-GAMMA MR 5 2002
HEXACHLOROBENZENE MR 5 2002
Di(2-ethylhexyl) adipate MR 5 2002
Picloram MR 5 2002
2,4,5-TP MR 5 2002
Hexachlorocyclopentadiene MR 5 2002
Atrazine MR 5 2002
LASSO MR 5 2002
Heptachlor epoxide MR 5 2002
Chlordane MR 5 2002
Benzo(a)pyrene MR 5 2002
Coliform (TCR) MR 4 1994
Consumer Confidence Rule Other 2 2024
Nitrate MR 1 2003
Gross Alpha, Excl. Radon and U MR 1 1979

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 540 samples detected PFAS.

Contaminant Date Result MRL Status
PFNA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 7/29/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/29/2024 <0.007 µg/L 0.007 µg/L Not Detected
lithium 7/29/2024 <9 µg/L 9 µg/L Not Detected
4:2 FTS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 7/29/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/29/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 7/29/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFNA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/29/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 7/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/29/2024 <0.007 µg/L 0.007 µg/L Not Detected
8:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/29/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFMBA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 7/29/2024 <0.003 µg/L 0.003 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.