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Community Water System · PWS AK2310918

Ft Wainwright - Main Post

Fairbanks, Alaska 99707 - drinking water served from groundwater sources to 20,076 people, tracked in EPA SDWIS and UCMR5.

20,076
People served
459
EPA violations
2
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 459 drinking-water violations at Ft Wainwright - Main Post - above the Alaska per-system average, and UCMR5 testing detected 1 PFAS compound.

459
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
20,076
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ft Wainwright - Main Post

Ft Wainwright - Main Post is a private-owned community water system that delivers drinking water to 20,076 residents in Fairbanks, Alaska (Fairbanks North Star Borough County) through 708 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 459 total violations for this system , of which 2 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 403 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is 2,3,7,8-TCDD, recorded in 10 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 4.3 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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 Wainwright - Main Post's 459 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
20,076
Total Violations
459
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
708
County
Fairbanks North Star Borough
School/Daycare
No
MCL Violations
2
Monitoring Violations
403
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
2,3,7,8-TCDD MR 10 2001
Simazine MR 8 2001
Picloram MR 8 2001
Heptachlor epoxide MR 8 2001
Heptachlor MR 8 2001
Glyphosate MR 8 2001
ETHYLENE DIBROMIDE MR 8 2001
Endothall MR 8 2001
Diquat MR 8 2001
Dinoseb MR 8 2001
Chlordane MR 8 2001
2,4-D MR 8 2001
Toxaphene MR 8 2001
Methoxychlor MR 8 2001
Carbofuran MR 8 2001
BHC-GAMMA MR 8 2001
Pentachlorophenol MR 8 2001
Atrazine MR 8 2001
2,4,5-TP MR 8 2001
1,2-DIBROMO-3-CHLOROPROPANE MR 8 2001
Endrin MR 8 2001
Total Polychlorinated Biphenyls (PCB) MR 8 2001
LASSO MR 8 2001
Dalapon MR 8 2001
trans-1,2-Dichloroethylene MR 7 1993
cis-1,2-Dichloroethylene MR 7 1993
1,2-Dichloropropane MR 7 1993
Ethylbenzene MR 7 1993
Styrene MR 7 1993
1,1,2-Trichloroethane MR 7 1993

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 174 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeS 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
NFDHA 4/8/2025 <20.00 ppt 20.00 ppt Not Detected
PFEESA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 4/8/2025 4.00 ppt 3.00 ppt Detected
PFHpA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
ADONA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 4/8/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 4/8/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/8/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/8/2025 <8.00 ppt 8.00 ppt Not Detected
PFNA 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 4/8/2025 <6.00 ppt 6.00 ppt Not Detected
PFUnA 4/8/2025 <2.00 ppt 2.00 ppt Not Detected
PFBA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
ADONA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 4/8/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 4/8/2025 <2.00 ppt 2.00 ppt Not Detected
PFBS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 4/8/2025 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 4/8/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/8/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/8/2025 <8.00 ppt 8.00 ppt Not Detected
4:2 FTS 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/8/2025 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 4/8/2025 <5.00 ppt 5.00 ppt Not Detected

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 Wainwright - Main Post.

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 AK2310918 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
2012 DICHLOROMETHANE MCL 1 SDWIS / AK2310918 / 2964
2011 TTHM MR 4 SDWIS / AK2310918 / 2950
2011 Total Haloacetic Acids (HAA5) MR 4 SDWIS / AK2310918 / 2456
2007 Consumer Confidence Rule Other 5 SDWIS / AK2310918 / 7000
2004 Chlorine MR 4 SDWIS / AK2310918 / 0999
2004 Coliform (TCR) MR 2 SDWIS / AK2310918 / 3100
2001 2,3,7,8-TCDD MR 10 SDWIS / AK2310918 / 2063
2001 Simazine MR 8 SDWIS / AK2310918 / 2037
2001 Picloram MR 8 SDWIS / AK2310918 / 2040
2001 Heptachlor epoxide MR 8 SDWIS / AK2310918 / 2067
2001 Heptachlor MR 8 SDWIS / AK2310918 / 2065
2001 Glyphosate MR 8 SDWIS / AK2310918 / 2034
2001 ETHYLENE DIBROMIDE MR 8 SDWIS / AK2310918 / 2946
2001 Endothall MR 8 SDWIS / AK2310918 / 2033
2001 Diquat MR 8 SDWIS / AK2310918 / 2032

How Ft Wainwright - Main Post Compares

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

Metric Ft Wainwright - Main Post Alaska avg Federal benchmark
Total violations 459 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 20,076 650 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 Wainwright - Main Post water safe to drink? ▼
Ft Wainwright - Main Post (PWS ID: AK2310918) has 459 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 20,076 people using Groundwater sources.
How many people does Ft Wainwright - Main Post serve? ▼
Ft Wainwright - Main Post serves 20,076 people in Fairbanks, Alaska. It is a Private-owned system using Groundwater water sources with 708 service connections.
What type of violations does Ft Wainwright - Main Post have? ▼
Ft Wainwright - Main Post has 459 total violations: 2 health-based violations (MCL exceedances or treatment failures), 403 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ft Wainwright - Main Post water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Ft Wainwright - Main Post's water supply: PFHxS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Ft Wainwright - Main Post use? ▼
Ft Wainwright - Main Post 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.