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Tap water quality report

Nsbu - Wainwright

EPA monitoring tested this supplier for 40 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

40
contaminants tested
18
detected
600
people served
48
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Surface water
Ownership
Native American
Counties served
North Slope Borough

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

48
health-based violations
317
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Archived 1998-12-01 → 1998-12-31
TT Health-based Archived 1998-10-01 → 1998-10-31
TT Health-based Archived 1998-09-01 → 1998-09-30
TT Health-based Archived 1998-08-01 → 1998-08-31
TT Health-based Archived 1998-04-01 → 1998-04-30
TT Health-based Archived 1997-06-01 → 1997-06-30
TT Health-based Archived 1997-05-01 → 1997-05-31
TT Health-based Archived 1997-04-01 → 1997-04-30
TT Health-based Archived 1997-03-01 → 1997-03-31
TT Health-based Archived 1997-02-01 → 1997-02-28

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
174 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 270 µg/L
29/30 SYR4 2013–2019
Bromodichloromethane
9.16 µg/L
No EPA limit set
worst single sample: 20.1 µg/L
27/27 SYR4 2012–2019
Chloroform
44.7 µg/L
No EPA limit set
worst single sample: 55 µg/L
27/27 SYR4 2012–2019
TTHM
62.36 µg/L 78%
of the EPA limit 80 µg/L
worst single sample: 67.6 µg/L
27/27 SYR4 2012–2019
Dichloroacetic Acid
25 µg/L
No EPA limit set
worst single sample: 34 µg/L
26/30 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
34.4 µg/L 57%
of the EPA limit 60 µg/L
worst single sample: 42.7 µg/L
26/30 SYR4 2012–2019
Dibromochloromethane
9.54 µg/L
No EPA limit set
worst single sample: 13 µg/L
25/27 SYR4 2012–2019
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
Trichloroacetic Acid
8.375 µg/L
No EPA limit set
worst single sample: 8.7 µg/L
14/30 SYR4 2012–2019
Bromoform
9.8 µg/L
No EPA limit set
worst single sample: 16 µg/L
11/27 SYR4 2012–2019
Dibromoacetic Acid
7.705 µg/L
No EPA limit set
worst single sample: 10 µg/L
10/30 SYR4 2012–2019
Xylenes, Total
69 µg/L 0.7%
of the EPA limit 10000 µg/L
worst single sample: 96 µg/L
10/14 SYR4 2013–2019
Ethylbenzene
10.305 µg/L 1.5%
of the EPA limit 700 µg/L
worst single sample: 13 µg/L
8/14 SYR4 2013–2019
Lead
5.8 µg/L 39%
of the EPA limit 15 µg/L
worst single sample: 5.9 µg/L
6/30 SYR4 2013–2019
Nitrate
450 µg/L 4.5%
of the EPA limit 10000 µg/L
 2/4 SYR4 2017–2018
Nitrate-Nitrite
432.5 µg/L 4.3%
of the EPA limit 10000 µg/L
worst single sample: 450 µg/L
2/8 SYR4 2012–2019
Dichloromethane
0.5000 µg/L 10%
of the EPA limit 5 µg/L
 1/14 SYR4 2013–2019
Monochloroacetic Acid
2.22 µg/L
No EPA limit set
 1/30 SYR4 2012–2019
22 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneArsenicBenzeneChlorobenzeneCarbon TetrachlorideCombined Radium (-226 And -228)Monobromoacetic AcidNitriteStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
AINA, SAGA
Email
[email protected]

Frequently asked questions about Nsbu - Wainwright

Is Nsbu - Wainwright tap water safe to drink?

EPA monitoring detected 18 contaminants in Nsbu - Wainwright's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Nsbu - Wainwright's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Nsbu - Wainwright serve?

Nsbu - Wainwright reports serving 600 people in Alaska, per its EPA record.

Has Nsbu - Wainwright had any water quality violations?

The EPA has 317 violations on file for Nsbu - Wainwright, of which 48 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.