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Community Water System · PWS AK2360256

Ft. Yukon Public Water System

Fort Yukon, Alaska 99740 - drinking water served from surface water sources to 665 people, tracked in EPA SDWIS and UCMR5.

665
People served
737
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 737 drinking-water violations at Ft. Yukon Public Water System, 1% of them health-based - above the Alaska per-system average.

737
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
665
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ft. Yukon Public Water System

Ft. Yukon Public Water System is a native american-owned community water system that delivers drinking water to 665 residents in Fort Yukon, Alaska (Yukon-Koyukuk Census Area County) through 200 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 737 total violations for this system , of which 8 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 653 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 57 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%).

Ft. Yukon Public Water System's 737 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
665
Total Violations
737
Health-Based Violations
8
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Native American
Connections
200
County
Yukon-Koyukuk Census Area
School/Daycare
No
MCL Violations
0
Monitoring Violations
653
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 57 2025
Chlorine MR 42 2025
Lead and Copper Rule MR 39 2025
Interim Enhanced Surface Water Treatment Rule MR 39 2025
Consumer Confidence Rule Other 19 2019
Simazine MR 13 2011
Picloram MR 13 2011
Diquat MR 13 2011
Dinoseb MR 13 2011
Endrin MR 13 2011
Pentachlorophenol MR 13 2011
Heptachlor MR 13 2011
ETHYLENE DIBROMIDE MR 13 2011
Chlordane MR 13 2011
2,4,5-TP MR 13 2011
Methoxychlor MR 13 2011
Atrazine MR 13 2011
2,4-D MR 13 2011
Toxaphene MR 13 2011
Total Polychlorinated Biphenyls (PCB) MR 13 2011
Heptachlor epoxide MR 13 2011
BHC-GAMMA MR 13 2011
Coliform (TCR) MR 10 2009
Aldicarb sulfone MR 8 1995
Aldicarb MR 8 1995
Aldicarb sulfoxide MR 8 1995
1,1,1-Trichloroethane MR 6 1998
1,1,2-Trichloroethane MR 6 1998
1,2-Dichloroethane MR 6 1998
1,2-Dichloropropane MR 6 1998

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 Ft. Yukon Public Water System.

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 AK2360256 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 Surface Water Treatment Rule MR 57 SDWIS / AK2360256 / 0200
2025 Chlorine MR 42 SDWIS / AK2360256 / 0999
2025 Lead and Copper Rule MR 39 SDWIS / AK2360256 / 5000
2025 Interim Enhanced Surface Water Treatment Rule MR 39 SDWIS / AK2360256 / 0300
2025 Revised Total Coliform Rule MON 2 SDWIS / AK2360256 / 8000
2023 TTHM MR 6 SDWIS / AK2360256 / 2950
2023 Total Haloacetic Acids (HAA5) MR 6 SDWIS / AK2360256 / 2456
2019 Consumer Confidence Rule Other 19 SDWIS / AK2360256 / 7000
2011 Simazine MR 13 SDWIS / AK2360256 / 2037
2011 Picloram MR 13 SDWIS / AK2360256 / 2040
2011 Diquat MR 13 SDWIS / AK2360256 / 2032
2011 Dinoseb MR 13 SDWIS / AK2360256 / 2041
2011 Endrin MR 13 SDWIS / AK2360256 / 2005
2011 Pentachlorophenol MR 13 SDWIS / AK2360256 / 2326
2011 Heptachlor MR 13 SDWIS / AK2360256 / 2065

How Ft. Yukon Public Water System Compares

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

Metric Ft. Yukon Public Water System Alaska avg Federal benchmark
Total violations 737 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 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 665 650 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 Ft. Yukon Public Water System water safe to drink? ▼
Ft. Yukon Public Water System (PWS ID: AK2360256) has 737 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 665 people using Surface Water sources.
How many people does Ft. Yukon Public Water System serve? ▼
Ft. Yukon Public Water System serves 665 people in Fort Yukon, Alaska. It is a Native American-owned system using Surface Water water sources with 200 service connections.
What type of violations does Ft. Yukon Public Water System have? ▼
Ft. Yukon Public Water System has 737 total violations: 8 health-based violations (MCL exceedances or treatment failures), 653 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ft. Yukon Public Water System water? ▼
No PFAS testing data is available for Ft. Yukon Public Water System under the EPA's UCMR5 monitoring program.
What water source does Ft. Yukon Public Water System use? ▼
Ft. Yukon Public Water System uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.