Public water system · AK2280066

Active

Grayling Water System

At a glance

Grayling Water System (PWSID AK2280066) is an active community water system in Yukon-Koyukuk Census Area County, Alaska. It reports serving 207 people through 63 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 March 2026.

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

Population served

207

Service connections

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDAK2280066

System typeCommunity water system

Activity statusActive

Population served207

Service connections63

Primary water sourceSurface water

Owner typeNative American

Primacy agencyAK state drinking water program

City servedGrayling

StateAlaska

ZIP—

CountyYukon-Koyukuk Census Area County

How does Grayling Water System compare with other water systems in Yukon-Koyukuk Census Area County?

By EPA's size categories, Grayling Water System is a very small system (500 people or fewer). Yukon-Koyukuk Census Area County has 34 active public water systems. Its population served is about 15% above the county average of 180 people per system, and accounts for 3.4% of the 6,119 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 Grayling Water System 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 Grayling Water System?

EPA lists Grayling Water System 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. 27 of the 34 active systems in Yukon-Koyukuk Census Area County (79%) are also Native American-owned.

Does Grayling Water System have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2026. The violations listed here began between December 2025 and March 2026. By type: 9 monitoring and reporting and 3 monitoring. The contaminant or rule involved most often is E. coli (4 of them). EPA lists 8 as archived and 4 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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
2026-03-01	Monitoring and reportingMonitoring, Source Water (LT2) · code 32	E. colicode 3014	No	Archived
2026-02-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2026-02-01	Monitoring and reportingMonitoring, Source Water (LT2) · code 32	E. colicode 3014	No	Archived
2026-01-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Archived
2026-01-01	Monitoring and reportingMonitoring, Source Water (LT2) · code 32	E. colicode 3014	No	Archived
2026-01-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Archived
2026-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-12-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Archived
2025-12-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-12-01	Monitoring and reportingMonitoring, Source Water (LT2) · code 32	E. colicode 3014	No	Archived
2025-12-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2025-12-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Archived

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.

Grayling Water System: frequently asked questions

Who runs Grayling Water System?

Grayling Water System (PWSID AK2280066) is a community water system Native American-owned. It is regulated by the AK state drinking water program.

How many people does Grayling Water System serve?

Grayling Water System reports serving 207 people through 63 service connections in Yukon-Koyukuk Census Area County, Alaska.

Where does Grayling Water System 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 Grayling Water System 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 March 2026. 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 Grayling Water System'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 March 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.

Where can I find Grayling Water System's water quality report?

As a community water system, Grayling Water System 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 Yukon-Koyukuk Census Area County

Water system	County	Population served	Type	Source
Ft. Yukon Public Water System	Yukon-Koyukuk Census Area	665	Community	Groundwater under influence of surface water
Galena Wtp1 - City	Yukon-Koyukuk Census Area	490	Community	Groundwater
Nenana Municipal Water	Yukon-Koyukuk Census Area	486	Community	Groundwater
Mcgrath Water System	Yukon-Koyukuk Census Area	341	Community	Surface water
Huslia Public Water System	Yukon-Koyukuk Census Area	323	Community	Groundwater
Galena Wtp2 - Gila	Yukon-Koyukuk Census Area	290	Community	Groundwater

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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, “Grayling Water System, PWSID AK2280066, Alaska”, https://aquacensus.com/water-systems/alaska/grayling-water-system-ak2280066 (data as of October 1, 2026).