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Community Water System · PWS AK2390065

Nenana Municipal Water

Nenana, Alaska 99760 - drinking water served from groundwater sources to 486 people, tracked in EPA SDWIS and UCMR5.

486
People served
224
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 224 drinking-water violations at Nenana Municipal Water - above the Alaska per-system average.

224
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
486
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Nenana Municipal Water

Nenana Municipal Water is a native american-owned community water system that delivers drinking water to 486 residents in Nenana, Alaska (Yukon-Koyukuk Census Area County) through 238 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 224 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 155 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Chlorine, recorded in 38 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%).

Nenana Municipal Water's 224 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
486
Total Violations
224
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
238
County
Yukon-Koyukuk Census Area
School/Daycare
No
MCL Violations
0
Monitoring Violations
155
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 38 2018
Consumer Confidence Rule Other 12 2017
Pentachlorophenol MR 5 1995
Heptachlor MR 5 1995
Chlordane MR 5 1995
Aldicarb sulfoxide MR 5 1995
2,4,5-TP MR 5 1995
Toxaphene MR 5 1995
Total Polychlorinated Biphenyls (PCB) MR 5 1995
Heptachlor epoxide MR 5 1995
Atrazine MR 5 1995
Aldicarb sulfone MR 5 1995
Aldicarb MR 5 1995
2,4-D MR 5 1995
BHC-GAMMA MR 5 1995
Methoxychlor MR 5 1995
Total Haloacetic Acids (HAA5) MR 4 2022
TTHM MR 4 2022
Arsenic MR 2 1990
Barium MR 2 1990
Cadmium MR 2 1990
Chromium MR 2 1990
Mercury MR 2 1990
Selenium MR 2 1990
Fluoride MR 2 1990
Nitrate MR 2 2022
Lead and Copper Rule MR 2 1997
Gross Alpha, Excl. Radon and U MR 1 1985
Trichloroethylene MR 1 1991
1,1-Dichloroethylene MR 1 1991

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 Nenana Municipal Water.

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 AK2390065 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
2022 Total Haloacetic Acids (HAA5) MR 4 SDWIS / AK2390065 / 2456
2022 TTHM MR 4 SDWIS / AK2390065 / 2950
2022 Nitrate MR 2 SDWIS / AK2390065 / 1040
2018 Chlorine MR 38 SDWIS / AK2390065 / 0999
2018 Revised Total Coliform Rule MON 1 SDWIS / AK2390065 / 8000
2017 Consumer Confidence Rule Other 12 SDWIS / AK2390065 / 7000
1997 Lead and Copper Rule MR 2 SDWIS / AK2390065 / 5000
1995 Pentachlorophenol MR 5 SDWIS / AK2390065 / 2326
1995 Heptachlor MR 5 SDWIS / AK2390065 / 2065
1995 Chlordane MR 5 SDWIS / AK2390065 / 2959
1995 Aldicarb sulfoxide MR 5 SDWIS / AK2390065 / 2043
1995 2,4,5-TP MR 5 SDWIS / AK2390065 / 2110
1995 Toxaphene MR 5 SDWIS / AK2390065 / 2020
1995 Total Polychlorinated Biphenyls (PCB) MR 5 SDWIS / AK2390065 / 2383
1995 Heptachlor epoxide MR 5 SDWIS / AK2390065 / 2067

How Nenana Municipal Water Compares

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

Metric Nenana Municipal Water Alaska avg Federal benchmark
Total violations 224 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 486 650 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 Nenana Municipal Water water safe to drink? ▼
Nenana Municipal Water (PWS ID: AK2390065) has 224 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 486 people using Groundwater sources.
How many people does Nenana Municipal Water serve? ▼
Nenana Municipal Water serves 486 people in Nenana, Alaska. It is a Native American-owned system using Groundwater water sources with 238 service connections.
What type of violations does Nenana Municipal Water have? ▼
Nenana Municipal Water has 224 total violations: 0 health-based violations (MCL exceedances or treatment failures), 155 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Nenana Municipal Water water? ▼
No PFAS testing data is available for Nenana Municipal Water under the EPA's UCMR5 monitoring program.
What water source does Nenana Municipal Water use? ▼
Nenana Municipal Water uses Groundwater 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.