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AquaCensus

Public water system · AK2260511

Active

Usaf Eareckson

At a glance

Usaf Eareckson (PWSID AK2260511) is an active non-transient non-community water system in Aleutians West Census Area County, Connecticut. It reports serving 120 people through 29 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2025.

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

Population served

120

Service connections

29

Primary source

GU

Groundwater under influence of surface water

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDAK2260511
System typeNon-transient non-community water system
Activity statusActive
Population served120
Service connections29
Primary water sourceGroundwater under influence of surface water
Owner typeFederal government
Primacy agencyAK state drinking water program
City servedShemya Stations
StateConnecticut
ZIP—
CountyAleutians West Census Area County

How does Usaf Eareckson compare with other water systems in Aleutians West Census Area County?

By EPA's size categories, Usaf Eareckson is a very small system (500 people or fewer). Aleutians West Census Area County has 2 active public water systems, and Usaf Eareckson is the 2nd-largest of them by population served. Its population served is about half of the county average of 223 people per system, and accounts for 27% of the 445 people reported by systems filed under the county. Across Connecticut, the 2,363 active systems average 1,247 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Usaf Eareckson is well below that figure.

What does “non-transient non-community water system” mean?

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. Connecticut has 483 active non-transient non-community water systems, 20% of the state's 2,363 active systems. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 3 Connecticut systems (0.1%) list groundwater under influence of surface water as their primary source.

Who owns and regulates Usaf Eareckson?

EPA lists Usaf Eareckson as owned by the federal government. 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. 1 of the 2 active systems in Aleutians West Census Area County (50%) are also owned by the federal government.

Does Usaf Eareckson have drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2025. The violations listed here began between January 2013 and January 2025. By type: 5 monitoring and reporting, 5 contaminant level above the legal limit and 2 required treatment not met. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (6 of them). EPA lists 10 as resolved and 2 as archived. 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. 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.

BeganViolationContaminant or ruleHealth-basedStatus
2025-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Asbestoscode 1094NoArchived
2019-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2018-06-01Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44Interim Enhanced Surface Water Treatment Rulecode 0300YesResolved
2016-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2015-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2015-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2014-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2013-11-01Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38Interim Enhanced Surface Water Treatment Rulecode 0300NoResolved
2013-11-01Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36Surface Water Treatment Rulecode 0200NoResolved
2013-01-01Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44Interim Enhanced Surface Water Treatment Rulecode 0300YesResolved
2013-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved

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.

Usaf Eareckson: frequently asked questions

Who runs Usaf Eareckson?

Usaf Eareckson (PWSID AK2260511) is a non-transient non-community water system owned by the federal government. It is regulated by the AK state drinking water program.

How many people does Usaf Eareckson serve?

Usaf Eareckson reports serving 120 people through 29 service connections in Aleutians West Census Area County, Connecticut.

Where does Usaf Eareckson get its water?

EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.

Does Usaf Eareckson have any drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 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 Usaf Eareckson'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, 7 are health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the AK state drinking water program.

Where can I find Usaf Eareckson's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Usaf Eareckson is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Aleutians West Census Area County

Water systemCountyPopulation servedTypeSource
Adak UtilitiesAleutians West Census Area325CommunitySurface 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, “Usaf Eareckson, PWSID AK2260511, Connecticut”, https://aquacensus.com/water-systems/connecticut/usaf-eareckson-ak2260511 (data as of October 1, 2026).