PlainWater

WEST MESA DOMESTIC WATER ASSN

PWS ID: WA5394830 · Othello, Washington 99344

Population Served
316
Total Violations
244
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
114
County
Franklin
School/Daycare
No
MCL Violations
15
Monitoring Violations
220
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 29 2015
Coliform (TCR) MCL 14 2003
Nitrate MR 13 2024
Lead and Copper Rule MR 11 2014
DICHLOROMETHANE MR 6 2014
o-Dichlorobenzene MR 6 2014
p-Dichlorobenzene MR 6 2014
1,1-Dichloroethylene MR 6 2014
1,2-Dichloroethane MR 6 2014
1,2-Dichloropropane MR 6 2014
1,1,2-Trichloroethane MR 6 2014
Tetrachloroethylene MR 6 2014
Toluene MR 6 2014
Ethylbenzene MR 6 2014
Styrene MR 6 2014
cis-1,2-Dichloroethylene MR 6 2014
trans-1,2-Dichloroethylene MR 6 2014
Carbon tetrachloride MR 6 2014
Trichloroethylene MR 6 2014
CHLOROBENZENE MR 6 2014
Benzene MR 6 2014
Vinyl chloride MR 6 2014
1,2,4-Trichlorobenzene MR 6 2014
1,1,1-Trichloroethane MR 6 2014
Fluoride MR 5 2021
Consumer Confidence Rule Other 2 2015
Barium MR 2 2011
Cadmium MR 2 2011
Chromium MR 2 2011
Arsenic MR 2 2011
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.