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Kenai Peninsula Borough County, Alaska — public water systems

At a glance

205 active public water systems are filed under Kenai Peninsula Borough County, Alaska in EPA's SDWIS records, together reporting 47,686 people served. The largest is Homer Water System, which reports serving 7,008 people. 27 are community water systems serving people where they live; the other 178 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

205

Population served

47.7K

Community systems

27

Groundwater share

94.1%

How does Kenai Peninsula Borough County compare with other Alaska counties?

Kenai Peninsula Borough County has the 2nd-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 47,686 people served in total, the 4th-largest county figure in the state and 5.5% of the statewide total. The average system here reports serving 233 people, about 64% 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 Kenai Peninsula Borough County's drinking water come from?

By primary water source, Kenai Peninsula Borough County's active systems draw on groundwater (180, 88%), surface water (10, 4.9%), purchased groundwater (10, 4.9%) and groundwater under influence of surface water (3, 1.5%). Overall, 94% rely mainly on groundwater (including purchased groundwater) and 5.9% 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, Homer Water System, draws primarily on surface water.

What kinds of water systems operate in Kenai Peninsula Borough County?

Kenai Peninsula Borough County's active systems break down as 27 community systems (13%), 20 non-transient non-community systems (9.8%) and 158 transient non-community systems (77%). 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 private (77%), local government (14%), federal government (3.9%) and Native American (2.9%).

The 50 largest water systems in Kenai Peninsula Borough County

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Active public water systems in Kenai Peninsula Borough County, Alaska
#Water systemCountyPopulation servedTypeSource
1Homer Water SystemKenai Peninsula Borough7,008CommunitySurface water
2Kenai Water SystemKenai Peninsula Borough5,700CommunityGroundwater
3SoldotnaKenai Peninsula Borough4,807CommunityGroundwater
4SewardKenai Peninsula Borough3,324CommunityGroundwater
5Usnps Exit Glacier Nature CenterKenai Peninsula Borough1,500Transient non-communityGroundwater
6Anchor Point Safe Water CorporationKenai Peninsula Borough1,000CommunityGroundwater
7Summit Lake LodgeKenai Peninsula Borough707Transient non-communityGroundwater
8Kpbsd Skyview Middle SchoolKenai Peninsula Borough650Non-transient non-communityGroundwater
9Seward Marine Industrial CentKenai Peninsula Borough545CommunityGroundwater
10Kpbsd Kalifornsky Beach ElemKenai Peninsula Borough484Non-transient non-communityGroundwater
11Nikishka BayKenai Peninsula Borough470CommunityGroundwater
12Kpbsd North Star ElementaryKenai Peninsula Borough448Non-transient non-communityGroundwater
13Kpbsd Nikiski Middle/High SchoolKenai Peninsula Borough439Non-transient non-communityGroundwater
14Kenai Princess LodgeKenai Peninsula Borough438Transient non-communityGroundwater
15Seldovia Water SystemKenai Peninsula Borough418CommunitySurface water
16Poachers Cove Planned Unit DevelopmentKenai Peninsula Borough400Transient non-communityGroundwater
17Ocean Marine Services LLC Water HaulingKenai Peninsula Borough372Transient non-communityPurchased groundwater
18Nikolaevsk Community Water SystemKenai Peninsula Borough360CommunitySurface water
19Rogue Wave ProcessingKenai Peninsula Borough319Transient non-communityGroundwater
20Three Bears Cooper LandingKenai Peninsula Borough308Transient non-communityGroundwater
21The Flats BistroKenai Peninsula Borough308Transient non-communityGroundwater
22Kenai Fjords ToursKenai Peninsula Borough306Transient non-communitySurface water
23Peninsula Grace Brethren ChurchKenai Peninsula Borough306Transient non-communityGroundwater
24Voznesenka VillageKenai Peninsula Borough300CommunityGroundwater
25NanwalekKenai Peninsula Borough281CommunitySurface water
26Anytime FitnessKenai Peninsula Borough254Transient non-communityGroundwater
27Orca Twin TheatersKenai Peninsula Borough250Transient non-communityGroundwater
28Seward Windsong Lodge, Well #1Kenai Peninsula Borough241Transient non-communityGroundwater
29College Heights Baptist ChurchKenai Peninsula Borough240Transient non-communityGroundwater
30Kenai Riverbend ResortKenai Peninsula Borough240Transient non-communityGroundwater
31River Quest Phase 1 SubdivisionKenai Peninsula Borough227Transient non-communityGroundwater
32Home Port Condo Assoc. Inc..Kenai Peninsula Borough221Transient non-communityGroundwater
33Jumping JunctionKenai Peninsula Borough219Transient non-communityGroundwater
34Kpbsd NinilchikKenai Peninsula Borough216Non-transient non-communityGroundwater
35Kenai PerformersKenai Peninsula Borough214Transient non-communityGroundwater
36Kpbsd Sterling ElementaryKenai Peninsula Borough212Non-transient non-communityGroundwater
37Nikiski Community Recreation CenterKenai Peninsula Borough210Transient non-communityGroundwater
38Big John'S - K-BeachKenai Peninsula Borough209Transient non-communityGroundwater
39Kenai Peninsula Food BankKenai Peninsula Borough206Transient non-communityGroundwater
40Tyonek Water SystemKenai Peninsula Borough206CommunityGroundwater
41Solid Rock Lakeside CenterKenai Peninsula Borough205Transient non-communityGroundwater
42Stoney Creek Rv ParkKenai Peninsula Borough202Transient non-communityGroundwater
43Duck InnKenai Peninsula Borough200Transient non-communityGroundwater
44Soldotna Centennial #2Kenai Peninsula Borough200Transient non-communityGroundwater
45Soldotna Centennial #1Kenai Peninsula Borough200Transient non-communityGroundwater
46Jehovahs Witness Kingdom HallKenai Peninsula Borough200Transient non-communityGroundwater
47Soldotna Centennial #5Kenai Peninsula Borough200Transient non-communityGroundwater
48Soldotna Swift Water #4Kenai Peninsula Borough200Transient non-communityGroundwater
49Kpbsd Tustumena ElementaryKenai Peninsula Borough185Non-transient non-communityGroundwater
50Port GrahamKenai Peninsula Borough180CommunitySurface water

All other water systems in Kenai Peninsula Borough County (155)

The remaining active systems filed under Kenai Peninsula Borough County, largest first, with the population each reports serving.

Kenai Peninsula Borough County water systems: frequently asked questions

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

EPA's SDWIS records file 205 active public water systems under Kenai Peninsula Borough County, Alaska: 27 community systems (13%), 20 non-transient non-community systems (9.8%) and 158 transient non-community systems (77%).

Who supplies drinking water in Kenai Peninsula Borough County, AK?

The largest community water systems filed under Kenai Peninsula Borough County are Homer Water System (7,008 people served), Kenai Water System (5,700 people served) and Soldotna (4,807 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 Kenai Peninsula Borough County's drinking water come from groundwater or surface water?

Of the 205 active public water systems in Kenai Peninsula Borough County, 94% draw mainly on groundwater and 5.9% on surface water, counting purchased supplies. The largest system, Homer Water System, uses surface water.

Where can I find a water quality report for Kenai 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. 27 community systems are filed under Kenai 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 Kenai 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 Kenai Peninsula Borough County, Alaska”, https://aquacensus.com/water-systems/alaska/kenai-peninsula-borough (data as of October 1, 2026).