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Lake and Peninsula Borough County, Alaska — public water systems

At a glance

15 active public water systems are filed under Lake and Peninsula Borough County, Alaska in EPA's SDWIS records, together reporting 2,205 people served. The largest is Egegik, which reports serving 485 people. 9 are community water systems serving people where they live; the other 6 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

15

Population served

2.2K

Community systems

9

Groundwater share

66.7%

How does Lake and Peninsula Borough County compare with other Alaska counties?

Lake and Peninsula Borough County has the 17th-most active public water systems among the 25 counties listed for active Alaska systems in EPA records; among the 24 with 3 or more systems, the median has 23. Its systems report 2,205 people served in total, the 23rd-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 147 people, well below the Alaska average of 653. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Lake and Peninsula Borough County's drinking water come from?

By primary water source, Lake and Peninsula Borough County's active systems draw on groundwater (10, 67%) and surface water (5, 33%). Overall, 67% rely mainly on groundwater (including purchased groundwater) and 33% on surface water, compared with 84% and 16% across Alaska. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Egegik, draws primarily on groundwater.

What kinds of water systems operate in Lake and Peninsula Borough County?

Lake and Peninsula Borough County's active systems break down as 9 community systems (60%), 2 non-transient non-community systems (13%) and 4 transient non-community systems (27%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as Native American (60%), private (27%) and state government (13%).

Water systems in Lake and Peninsula Borough County

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Active public water systems in Lake and Peninsula Borough County, Alaska
#Water systemCountyPopulation servedTypeSource
1EgegikLake and Peninsula Borough485CommunityGroundwater
2Chignik Lagoon Water SystemLake and Peninsula Borough273CommunityGroundwater
3NondaltonLake and Peninsula Borough205CommunitySurface water
4Chignik Lake Water SystemLake and Peninsula Borough200CommunityGroundwater
5Chignik Bay Water SystemLake and Peninsula Borough199CommunitySurface water
6Kokhanok Water & Ww SystemLake and Peninsula Borough160CommunitySurface water
7Tanalian Bible CampLake and Peninsula Borough103Transient non-communityGroundwater
8Igiugig Water SystemLake and Peninsula Borough100CommunitySurface water
9Perryville Water SystemLake and Peninsula Borough88CommunitySurface water
10L&Psd Newhalen SchoolLake and Peninsula Borough85Non-transient non-communityGroundwater
11L&Psd Port Alsworth SchoolLake and Peninsula Borough80Non-transient non-communityGroundwater
12Newhalen Water SystemLake and Peninsula Borough80CommunityGroundwater
13Samaritan Lodge AlaskaLake and Peninsula Borough56Transient non-communityGroundwater
14Rainbow King LodgeLake and Peninsula Borough55Transient non-communityGroundwater
15Alaska Rainbow LodgeLake and Peninsula Borough36Transient non-communityGroundwater

Lake and Peninsula Borough County water systems: frequently asked questions

How many public water systems are in Lake and Peninsula Borough County, Alaska?

EPA's SDWIS records file 15 active public water systems under Lake and Peninsula Borough County, Alaska: 9 community systems (60%), 2 non-transient non-community systems (13%) and 4 transient non-community systems (27%).

Who supplies drinking water in Lake and Peninsula Borough County, AK?

The largest community water systems filed under Lake and Peninsula Borough County are Egegik (485 people served), Chignik Lagoon Water System (273 people served) and Nondalton (205 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Lake and Peninsula Borough County's drinking water come from groundwater or surface water?

Of the 15 active public water systems in Lake and Peninsula Borough County, 67% draw mainly on groundwater and 33% on surface water, counting purchased supplies. The largest system, Egegik, uses groundwater.

Where can I find a water quality report for Lake and Peninsula Borough County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 9 community systems are filed under Lake and Peninsula Borough County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Lake and Peninsula Borough County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Alaska water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Lake and Peninsula Borough County, Alaska”, https://aquacensus.com/water-systems/alaska/lake-and-peninsula-borough (data as of October 1, 2026).