PlainWater
States → Oregon

GRONER ELEMENTARY SD 1J

PWS ID: OR4190607 · HILLSBORO, Oregon 97124

Population Served
250
Total Violations
150
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Washington
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
141
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 19 2013
Nitrate MR 5 2010
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2005
Dinoseb MR 2 2005
Endothall MR 2 2005
Endrin MR 2 2005
Heptachlor epoxide MR 2 2005
Heptachlor MR 2 2005
HEXACHLOROBENZENE MR 2 2005
Pentachlorophenol MR 2 2005
Total Polychlorinated Biphenyls (PCB) MR 2 2005
Toxaphene MR 2 2005
OXAMYL MR 2 2005
1,1-Dichloroethylene MR 2 2005
1,1,1-Trichloroethane MR 2 2005
1,1,2-Trichloroethane MR 2 2005
1,2-Dichloroethane MR 2 2005
1,2-Dichloropropane MR 2 2005
1,2,4-Trichlorobenzene MR 2 2005
Benzene MR 2 2005
cis-1,2-Dichloroethylene MR 2 2005
DICHLOROMETHANE MR 2 2005
Ethylbenzene MR 2 2005
o-Dichlorobenzene MR 2 2005
p-Dichlorobenzene MR 2 2005
Styrene MR 2 2005
trans-1,2-Dichloroethylene MR 2 2005
Vinyl chloride MR 2 2005
Xylenes, Total MR 2 2005
BHC-GAMMA MR 2 2005
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.