PlainWater

UNIVERSITY OF ALASKA - FAIRBANKS

PWS ID: AK2310683 · FAIRBANKS, Alaska 99775

PFAS Detected

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

Population Served
6,200
Total Violations
234
Health-Based Violations
56
Water Source
Groundwater

System Details

System Type
Community
Owner Type
State
Connections
100
County
Fairbanks North Star Borough
School/Daycare
No
MCL Violations
55
Monitoring Violations
105
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 39 2017
Coliform (TCR) MCL 8 2015
Total Haloacetic Acids (HAA5) MCL 7 2015
Coliform (TCR) MR 5 2007
Consumer Confidence Rule Other 5 2020
Total Polychlorinated Biphenyls (PCB) MR 4 1995
ETHYLENE DIBROMIDE MR 4 1995
Pentachlorophenol MR 4 1995
Heptachlor MR 4 1995
Atrazine MR 4 1995
Aldicarb MR 4 1995
2,4,5-TP MR 4 1995
2,4-D MR 4 1995
Toxaphene MR 4 1995
Methoxychlor MR 4 1995
Chlordane MR 4 1995
Aldicarb sulfone MR 4 1995
BHC-GAMMA MR 4 1995
Aldicarb sulfoxide MR 4 1995
Heptachlor epoxide MR 4 1995
Nitrate MR 3 1994
Gross Alpha, Excl. Radon and U MR 2 1988
TTHM MR 2 2021
Lead and Copper Rule MR 2 2019
Chlorine MR 2 2023
Benzene MCL 1 1991
1,2-Dichloroethane MR 1 1992
Trichloroethylene MR 1 1992
1,1-Dichloroethylene MR 1 1992
Carbon tetrachloride MR 1 1992

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/11/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/11/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/11/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFPeS 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/11/2023 0.0057 µg/L 0.003 µg/L Detected
PFNA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/11/2023 0.0031 µg/L 0.003 µg/L Detected
PFMPA 9/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/11/2023 <9 µg/L 9 µg/L Not Detected
PFUnA 9/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 9/11/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
HFPO-DA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 3/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 3/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 3/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 3/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 3/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 3/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 3/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 3/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 3/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 3/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 3/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 3/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFOS 3/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
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.