Public water system · AK2120606

Active

Kasaan

At a glance

Kasaan (PWSID AK2120606) is an active community water system in Ketchikan Gateway Borough County, Alaska. It reports serving 66 people through 39 service connections. Its primary water source is surface water, and EPA lists it as Native American-owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDAK2120606

System typeCommunity water system

Activity statusActive

Population served66

Service connections39

Primary water sourceSurface water

Owner typeNative American

Primacy agencyAK state drinking water program

City servedKetchikan

StateAlaska

ZIP—

CountyKetchikan Gateway Borough County

How does Kasaan compare with other water systems in Ketchikan Gateway Borough County?

By EPA's size categories, Kasaan is a very small system (500 people or fewer). Ketchikan Gateway Borough County has 22 active public water systems. Its population served is well below the county average of 560 people per system, and accounts for 0.5% of the 12,315 people reported by systems filed under the county. Across Alaska, the 1,322 active systems average 653 people each. Nationally, the average active community water system reports serving 6,703 people, so Kasaan is well below that figure.

What does “community water system” mean?

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. Alaska has 406 active community water systems, 31% of the state's 1,322 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 150 Alaska systems (11%) list surface water as their primary source.

Who owns and regulates Kasaan?

EPA lists Kasaan as Native American-owned. The AK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 2 of the 22 active systems in Ketchikan Gateway Borough County (9.1%) are also Native American-owned.

Does Kasaan have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. The violations listed here began between July 2021 and November 2025. By type: 5 monitoring, 5 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (5 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

Began	Violation	Contaminant or rule	Health-based	Status
2025-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-11-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2024-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-11-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2022-11-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2022-08-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2022-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2021-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-10-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2021-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Kasaan: frequently asked questions

Who runs Kasaan?

Kasaan (PWSID AK2120606) is a community water system Native American-owned. It is regulated by the AK state drinking water program.

How many people does Kasaan serve?

Kasaan reports serving 66 people through 39 service connections in Ketchikan Gateway Borough County, Alaska.

Where does Kasaan get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Kasaan have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Kasaan's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.

Where can I find Kasaan's water quality report?

As a community water system, Kasaan must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Ketchikan Gateway Borough County

Water system	County	Population served	Type	Source
Ketchikan Public Utilities	Ketchikan Gateway Borough	8,937	Community	Surface water
South Tongass Water Utility	Ketchikan Gateway Borough	975	Community	Surface water
Saxman	Ketchikan Gateway Borough	450	Community	Surface water
Point Higgins Elementary School	Ketchikan Gateway Borough	300	Non-transient non-community	Groundwater
Knudson Cove Marina	Ketchikan Gateway Borough	233	Transient non-community	Groundwater
Vallenar View Mobile Home Park	Ketchikan Gateway Borough	225	Community	Surface water

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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, “Kasaan, PWSID AK2120606, Alaska”, https://aquacensus.com/water-systems/alaska/kasaan-ak2120606 (data as of October 1, 2026).