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Tap water quality report

Napaskiak West Water

EPA monitoring tested this supplier for 68 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
13
detected
200
people served
16
health-based violations
Alaska rankingsLead in AlaskaPFAS in Alaska
Water source
Ground water
Ownership
Native American
Counties served
Bethel Census Area

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.

16
health-based violations
552
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-04-14
TT Health-based Resolved 2024-04-14
TT Health-based Resolved 2024-04-14
TT Health-based Resolved 2024-04-14
TT Health-based Resolved 2024-04-14
TT Health-based Resolved 2020-01-31
TT Health-based Resolved 2020-01-31
TT Health-based Resolved 2020-01-31
TT Health-based Resolved 2020-01-31
TT Health-based Resolved 2020-01-31

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
Lead
0.0074 mg/L 49%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2020
Copper
409.35 µg/L 31%
of the EPA limit 1300 µg/L
worst single sample: 417 µg/L
10/10 SYR4 2012–2016
Lead
14.115 µg/L 94%
of the EPA limit 15 µg/L
worst single sample: 14.5 µg/L
8/10 SYR4 2012–2016
Nitrate-Nitrite
1067.5 µg/L 11%
of the EPA limit 10000 µg/L
worst single sample: 1170 µg/L
6/6 SYR4 2012–2018
Chloroform
3.665 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
3/3 SYR4 2013–2016
Dichloroacetic Acid
12.4885 µg/L
No EPA limit set
worst single sample: 13 µg/L
2/3 SYR4 2013–2016
Nitrate
242 µg/L 2.4%
of the EPA limit 10000 µg/L
 2/2 SYR4 2016
Total Haloacetic Acids (HAA5)
14.4835 µg/L 24%
of the EPA limit 60 µg/L
worst single sample: 15 µg/L
2/3 SYR4 2013–2016
Xylenes, Total
0.7035 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 0.7100 µg/L
2/5 SYR4 2012–2017
Monochloroacetic Acid
2 µg/L
No EPA limit set
 1/3 SYR4 2013–2016
TTHM
3.8 µg/L 4.8%
of the EPA limit 80 µg/L
 1/3 SYR4 2013–2016
Toluene
0.8500 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/5 SYR4 2012–2017
Trichloroacetic Acid
1.9 µg/L
No EPA limit set
 1/3 SYR4 2013–2016
55 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAtrazineBhc-GammaBenzeneBenzo(A)PyreneBromodichloromethaneBromoformChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LARSON, WASSILENE
Phone
907-737-7643
Email
[email protected]

Frequently asked questions about Napaskiak West Water

Is Napaskiak West Water tap water safe to drink?

EPA monitoring detected 13 contaminants in Napaskiak West Water'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 Napaskiak West Water's water?

EPA monitoring detected Lead, Copper, Lead, Nitrate-Nitrite, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Napaskiak West Water serve?

Napaskiak West Water reports serving 200 people in Alaska, per its EPA record.

Has Napaskiak West Water had any water quality violations?

The EPA has 552 violations on file for Napaskiak West Water, of which 16 are health-based (a contaminant limit or required treatment was breached) and 1 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.