PlainWater

Snake River Housing Water System

PWS ID: WA5300710 · Yakima, Washington 98908

Population Served
3,036
Total Violations
50
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
257
County
Walla Walla
School/Daycare
No
MCL Violations
6
Monitoring Violations
43
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 6 1992
Revised Total Coliform Rule MON 3 2019
Coliform (TCR) MR 2 1999
Picloram MR 1 2019
Dinoseb MR 1 2019
Endrin MR 1 2019
BHC-GAMMA MR 1 2019
Methoxychlor MR 1 2019
Di(2-ethylhexyl) adipate MR 1 2019
Simazine MR 1 2019
Di(2-ethylhexyl) phthalate MR 1 2019
Hexachlorocyclopentadiene MR 1 2019
Atrazine MR 1 2019
Heptachlor MR 1 2019
Heptachlor epoxide MR 1 2019
Benzo(a)pyrene MR 1 2019
Chlordane MR 1 2019
Arsenic MR 1 2017
Cadmium MR 1 2017
Chromium MR 1 2017
Nickel MR 1 2017
Nitrite MR 1 2017
Selenium MR 1 2017
Antimony, Total MR 1 2017
ETHYLENE DIBROMIDE MR 1 2020
TTHM MR 1 2021
Lead and Copper Rule MR 1 1998
Beryllium, Total MR 1 2017
LASSO MR 1 2019
Barium MR 1 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
4:2 FTS 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/28/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/28/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 6/28/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 6/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/28/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/28/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/28/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/28/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/28/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/28/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/24/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/24/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 5/24/2023 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 5/24/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/24/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 5/24/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/24/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/24/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/24/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/24/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/24/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/24/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/24/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/24/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/24/2023 <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.