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Non-Transient Non-Community Water System · PWS AK2262505

Offshore Systems, Dutch Harbor

Dutch Harbor, Alaska 99692 - drinking water served from surface water sources to 535 people, tracked in EPA SDWIS and UCMR5.

535
People served
396
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 396 drinking-water violations at Offshore Systems, Dutch Harbor, 1% of them health-based - above the Alaska per-system average.

396
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
535
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Offshore Systems, Dutch Harbor

Offshore Systems, Dutch Harbor is a private-owned non-transient non-community water system that delivers drinking water to 535 residents in Dutch Harbor, Alaska (Aleutians West Census Area County) through 30 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 396 total violations for this system , of which 5 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 308 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 53 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Alaska, EPA tracks 1,326 public water systems serving 862,218 people, with 267,144 cumulative violations and 13,963 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 201.5 violations. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%).

Offshore Systems, Dutch Harbor's 396 violations sit above the Alaska average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
535
Total Violations
396
Health-Based Violations
5
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
30
County
Aleutians West Census Area
School/Daycare
No
MCL Violations
0
Monitoring Violations
308
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 53 2022
Chlorine MR 43 2025
Coliform (TCR) MR 42 2011
Nitrate MR 7 2005
DICHLOROMETHANE MR 6 2000
Xylenes, Total MR 6 2000
p-Dichlorobenzene MR 6 2000
1,1,1-Trichloroethane MR 6 2000
Toluene MR 6 2000
Ethylbenzene MR 6 2000
1,2-Dichloropropane MR 6 2000
cis-1,2-Dichloroethylene MR 6 2000
1,1-Dichloroethylene MR 6 2000
Benzene MR 6 2000
1,2-Dichloroethane MR 6 2000
1,2,4-Trichlorobenzene MR 6 2000
1,1,2-Trichloroethane MR 6 2000
o-Dichlorobenzene MR 6 2000
CHLOROBENZENE MR 6 2000
Tetrachloroethylene MR 6 2000
trans-1,2-Dichloroethylene MR 6 2000
Trichloroethylene MR 6 2000
Styrene MR 6 2000
Carbon tetrachloride MR 6 2000
Surface Water Treatment Rule TT 5 2022
Arsenic MR 4 2005
TTHM MR 4 2020
Total Haloacetic Acids (HAA5) MR 4 2020
Lead and Copper Rule MR 4 2009
Consumer Confidence Rule Other 4 2006

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Offshore Systems, Dutch Harbor.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AK2262505 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Alaska Drinking Water Authority

Alaska's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find AK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Chlorine MR 43 SDWIS / AK2262505 / 0999
2025 Revised Total Coliform Rule MON 1 SDWIS / AK2262505 / 8000
2022 Surface Water Treatment Rule MR 53 SDWIS / AK2262505 / 0200
2022 Surface Water Treatment Rule TT 5 SDWIS / AK2262505 / 0200
2020 TTHM MR 4 SDWIS / AK2262505 / 2950
2020 Total Haloacetic Acids (HAA5) MR 4 SDWIS / AK2262505 / 2456
2011 Coliform (TCR) MR 42 SDWIS / AK2262505 / 3100
2009 Lead and Copper Rule MR 4 SDWIS / AK2262505 / 5000
2006 Consumer Confidence Rule Other 4 SDWIS / AK2262505 / 7000
2005 Nitrate MR 7 SDWIS / AK2262505 / 1040
2005 Arsenic MR 4 SDWIS / AK2262505 / 1005
2000 DICHLOROMETHANE MR 6 SDWIS / AK2262505 / 2964
2000 Xylenes, Total MR 6 SDWIS / AK2262505 / 2955
2000 p-Dichlorobenzene MR 6 SDWIS / AK2262505 / 2969
2000 1,1,1-Trichloroethane MR 6 SDWIS / AK2262505 / 2981

How Offshore Systems, Dutch Harbor Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Offshore Systems, Dutch Harbor Alaska avg Federal benchmark
Total violations 396 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 535 650 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,326 regulated public water systems in Alaska.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Offshore Systems, Dutch Harbor water safe to drink? ▼
Offshore Systems, Dutch Harbor (PWS ID: AK2262505) has 396 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 535 people using Surface Water sources.
How many people does Offshore Systems, Dutch Harbor serve? ▼
Offshore Systems, Dutch Harbor serves 535 people in Dutch Harbor, Alaska. It is a Private-owned system using Surface Water water sources with 30 service connections.
What type of violations does Offshore Systems, Dutch Harbor have? ▼
Offshore Systems, Dutch Harbor has 396 total violations: 5 health-based violations (MCL exceedances or treatment failures), 308 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Offshore Systems, Dutch Harbor water? ▼
No PFAS testing data is available for Offshore Systems, Dutch Harbor under the EPA's UCMR5 monitoring program.
What water source does Offshore Systems, Dutch Harbor use? ▼
Offshore Systems, Dutch Harbor uses Surface Water as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.