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Tap water quality report

Emmonak, AK

EPA monitoring detected 14 contaminants across the 1 water supplier serving Emmonak. 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
820
people served
14
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Emmonak'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
767.35 µg/L 59%
of the EPA limit 1300 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2018
1/1 SYR4
Nitrate-Nitrite
314 µg/L 3.1%
of the EPA limit 10000 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
TTHM
115.1 µg/L 144%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Chloroform
114 µg/L
No EPA limit set
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Barium
53.4 µg/L 2.7%
of the EPA limit 2000 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2013
1/1 SYR4
Total Haloacetic Acids (HAA5)
33.66 µg/L 56%
of the EPA limit 60 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Trichloroacetic Acid
27.18 µg/L
No EPA limit set
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Lead
7.97 µg/L 53%
of the EPA limit 15 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2018
1/1 SYR4
Dichloroacetic Acid
7.785 µg/L
No EPA limit set
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Bromodichloromethane
4.545 µg/L
No EPA limit set
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2019
1/1 SYR4
Selenium
1.06 µg/L 2.1%
of the EPA limit 50 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2013
1/1 SYR4
Chromium
0.5090 µg/L 0.5%
of the EPA limit 100 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2013
1/1 SYR4
Antimony, Total
0.1050 µg/L 1.7%
of the EPA limit 6 µg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2012
1/1 SYR4
Lead
0.00094 mg/L 6.3%
of the EPA limit 0.0150 mg/L
Main supplier: EMMONAK WATER SYSTEM · 820 people · 2021
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 Emmonak

SupplierPopulation served
EMMONAK WATER SYSTEM 820

Frequently asked questions about Emmonak tap water

Is Emmonak tap water safe to drink?

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

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

What contaminants are in Emmonak's water?

The contaminants EPA monitoring detected in Emmonak include Copper, Nitrate-Nitrite, TTHM, Chloroform, Barium. 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.