PlainWater
States → Oregon

WALLOWA LAKE CO SERVICE DIST

PWS ID: OR4101420 · ENTERPRISE, Oregon 97828

Population Served
350
Total Violations
124
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
288
County
Wallowa
School/Daycare
No
MCL Violations
5
Monitoring Violations
116
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 2011
Nitrate MR 12 2023
Lead and Copper Rule MR 9 2023
Combined Radium (-226 and -228) MR 7 2018
Revised Total Coliform Rule MON 6 2025
Gross Alpha, Excl. Radon and U MR 5 2016
Coliform (TCR) MCL 5 1998
Nitrite MR 4 2002
Combined Uranium MR 3 2016
cis-1,2-Dichloroethylene MR 2 2002
DICHLOROMETHANE MR 2 2002
Vinyl chloride MR 2 2002
1,1-Dichloroethylene MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002
1,2-Dichloroethane MR 2 2002
1,1,1-Trichloroethane MR 2 2002
1,2-Dichloropropane MR 2 2002
1,1,2-Trichloroethane MR 2 2002
Tetrachloroethylene MR 2 2002
CHLOROBENZENE MR 2 2002
Benzene MR 2 2002
Ethylbenzene MR 2 2002
E. COLI MR 2 2017
p-Dichlorobenzene MR 2 2002
Carbon tetrachloride MR 2 2002
1,2,4-Trichlorobenzene MR 2 2002
o-Dichlorobenzene MR 2 2002
Trichloroethylene MR 2 2002
Xylenes, Total MR 2 2002
Toluene MR 2 2002
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.