PlainWater
States → Washington

OAK PARK

PWS ID: WA5362675 · SHELTON, Washington 98584-5034

Population Served
695
Total Violations
61
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
227
County
Mason
School/Daycare
No
MCL Violations
2
Monitoring Violations
55
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 3 2022
o-Dichlorobenzene MR 2 2011
1,1-Dichloroethylene MR 2 2011
trans-1,2-Dichloroethylene MR 2 2011
1,2-Dichloroethane MR 2 2011
1,1,1-Trichloroethane MR 2 2011
1,2-Dichloropropane MR 2 2011
Trichloroethylene MR 2 2011
Benzene MR 2 2011
Toluene MR 2 2011
Ethylbenzene MR 2 2011
1,2,4-Trichlorobenzene MR 2 2011
DICHLOROMETHANE MR 2 2011
p-Dichlorobenzene MR 2 2011
Carbon tetrachloride MR 2 2011
1,1,2-Trichloroethane MR 2 2011
CHLOROBENZENE MR 2 2011
Styrene MR 2 2011
Coliform (TCR) MR 2 1992
Coliform (TCR) MCL 2 1995
Vinyl chloride MR 2 2011
cis-1,2-Dichloroethylene MR 2 2011
Tetrachloroethylene MR 2 2011
Consumer Confidence Rule Other 1 1999
Revised Total Coliform Rule MON 1 2018
Cadmium MR 1 1979
Mercury MR 1 1979
Barium MR 1 1979
Selenium MR 1 1979
Chromium MR 1 1979
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.