PlainWater

KOLIGANEK WATER SYSTEM

PWS ID: AK2260040 · KOLIGANEK, Alaska 99576

Population Served
170
Total Violations
492
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
40
County
Dillingham Census Area
School/Daycare
No
MCL Violations
0
Monitoring Violations
349
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 43 2016
Lead and Copper Rule MR 23 2024
Chlorine MR 22 2005
Nitrate MR 18 2024
Groundwater Rule TT 10 2018
Consumer Confidence Rule Other 9 2021
p-Dichlorobenzene MR 6 2014
Carbon tetrachloride MR 6 2014
Trichloroethylene MR 6 2014
Benzene MR 6 2014
Revised Total Coliform Rule MON 6 2019
Vinyl chloride MR 6 2014
1,2-Dichloroethane MR 6 2014
1,1-Dichloroethylene MR 6 2014
1,1,1-Trichloroethane MR 6 2014
Arsenic MR 5 2014
Endrin MR 4 2010
BHC-GAMMA MR 4 2010
Toxaphene MR 4 2010
Dalapon MR 4 2010
Endothall MR 4 2010
Glyphosate MR 4 2010
OXAMYL MR 4 2010
Simazine MR 4 2010
Di(2-ethylhexyl) phthalate MR 4 2010
Picloram MR 4 2010
Hexachlorocyclopentadiene MR 4 2010
Carbofuran MR 4 2010
Atrazine MR 4 2010
LASSO MR 4 2010
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.