Tapcensus

Water quality in Koliganek, Alaska

Koliganek is in Dillingham Census Area. 24 active public water systems serve the county; 20 had an EPA violation in the past three years.

Most likely your provider

Koliganek Water System AK2260040 · Community water system · Ground water · Koliganek
Serves 170 people Rules violated, past 3 years 3 Unresolved 1 Last sanitary survey Nov 17, 2025 Distance 0.2 mi

Other community water systems in Dillingham Census Area

10 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
New Stuyahok Water System
New Stuyahok
566 8 18.8 mi
Bbahc Kanakanak Hospital
Dillingham
305 0 63.6 mi
Nina Nicholson Subdivision
Dillingham
31 6 63.6 mi
Salmon Roe
Dillingham
31 2 63.6 mi
Dillingham Water System
Dillingham
2,419 7 64.0 mi
Clarks Point Water System
Clarks Point
128 6 76.1 mi
Manokotak Water System
Manokotak
293 8 78.9 mi
Manokotak Heights W/s
Manokotak
215 7 80.9 mi
Twin Hills Water System
Twin Hills
87 7 114.8 mi
Togiak Water System
Togiak
910 1 118.4 mi
Non-community systems in Dillingham Census Area (13: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Swrsd Koliganek School
Koliganek
72 1 0
Swrsd Aleknagik Northshore
Aleknagik
38 0 0
Silver Bay Seafoods Wood River
Dillingham
300 1 0
Bristol Bay Native Assoc.
Dillingham
120 2 0
Tikchik Narrows Lodge
Dillingham
58 3 0
Bristol Bay Lodge
Dillingham
46 3 1
Alaska Airlines Dillingham
Dillingham
160 1 0
Dillingham Courthouse
Dillingham
219 0 0
Ekuk Fisheries
Dillingham
150 3 1
Swrsd Manokotak Heights School
Manokotak
177 0 0
Swrsd Twin Hills School
Dillingham
38 1 0
Swrsd Togiak K12 School
Togiak
280 1 0
North Pacific Seafoods Togiak Fisheries
Togiak
100 2 1
About this data

Water systems are matched to Dillingham Census Area, nearest to Koliganek first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Alaska records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.