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Tap water quality report

Kwethluk, AK

EPA monitoring detected 15 contaminants across the 1 water supplier serving Kwethluk. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
760
people served
15
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Kwethluk's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
342.75 µg/L 3.4%
of the EPA limit 10000 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Copper
270.5 µg/L 21%
of the EPA limit 1300 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2016
1/1 SYR4
Fluoride
120 µg/L 3%
of the EPA limit 4000 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2017
1/1 SYR4
TTHM
120 µg/L 150%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Chloroform
111.5 µg/L
No EPA limit set
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
72.2 µg/L 120%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Dichloroacetic Acid
36.5 µg/L
No EPA limit set
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Trichloroacetic Acid
36.25 µg/L
No EPA limit set
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Barium
12.98 µg/L 0.6%
of the EPA limit 2000 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2017
1/1 SYR4
Cyanide
9.3 µg/L 4.7%
of the EPA limit 200 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2017
1/1 SYR4
Lead
9.165 µg/L 61%
of the EPA limit 15 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2016
1/1 SYR4
Bromodichloromethane
4.715 µg/L
No EPA limit set
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Monochloroacetic Acid
3.225 µg/L
No EPA limit set
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Toluene
0.8800 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2019
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: KWETHLUK NEW PIPED WATER SYSTEM · 760 people · 2024
1/1 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Kwethluk

SupplierPopulation served
KWETHLUK NEW PIPED WATER SYSTEM 760

Frequently asked questions about Kwethluk tap water

Is Kwethluk tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Kwethluk. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Kwethluk?

1 public water supplier report drinking-water monitoring for Kwethluk, Alaska to the EPA. Each is listed above with its population served.

What contaminants are in Kwethluk's water?

The contaminants EPA monitoring detected in Kwethluk include Nitrate-Nitrite, Copper, Fluoride, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.

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.