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Tap water quality report

Atmautluak, AK

EPA monitoring detected 14 contaminants across the 1 water supplier serving Atmautluak. 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
311
people served
14
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Atmautluak'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
Copper
5925 µg/L 456%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2016
1/1 SYR4
Nitrate
240 µg/L 2.4%
of the EPA limit 10000 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2017
1/1 SYR4
TTHM
31.71 µg/L 40%
of the EPA limit 80 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Chloroform
29.81 µg/L
No EPA limit set
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
17.87 µg/L 30%
of the EPA limit 60 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Trichloroacetic Acid
16.52 µg/L
No EPA limit set
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Lead
7.02 µg/L 47%
of the EPA limit 15 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2016
1/1 SYR4
Dichloroacetic Acid
3.59 µg/L
No EPA limit set
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.1 µg/L
No EPA limit set
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Arsenic
1.91 µg/L 19%
of the EPA limit 10 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2014
1/1 SYR4
Bromodichloromethane
1.7 µg/L
No EPA limit set
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Toluene
0.7200 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Xylenes, Total
0.7180 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2019
1/1 SYR4
Lead
0.0076 mg/L 51%
of the EPA limit 0.0150 mg/L
Main supplier: ATMAUTLUAK WATER SYSTEM · 311 people · 2025
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 Atmautluak

SupplierPopulation served
ATMAUTLUAK WATER SYSTEM 311

Frequently asked questions about Atmautluak tap water

Is Atmautluak tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Atmautluak. 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 Atmautluak?

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

What contaminants are in Atmautluak's water?

The contaminants EPA monitoring detected in Atmautluak include Copper, Nitrate, TTHM, Chloroform, Total Haloacetic Acids (HAA5). 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.