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Tap water quality report

Eielson, AK

EPA monitoring detected 17 contaminants across the 1 water supplier serving Eielson. 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
11,870
people served
17
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Eielson'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
1182.5 µg/L 91%
of the EPA limit 1300 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Nitrate-Nitrite
397 µg/L 4%
of the EPA limit 10000 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Fluoride
138 µg/L 3.5%
of the EPA limit 4000 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2016
1/1 SYR4
TTHM
78.38 µg/L 98%
of the EPA limit 80 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Chloroform
73.96 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
33.35 µg/L 56%
of the EPA limit 60 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Trichloroacetic Acid
22.2 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Dichloroacetic Acid
11.93 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Lead
5.125 µg/L 34%
of the EPA limit 15 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Arsenic
5.01 µg/L 50%
of the EPA limit 10 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2016
1/1 SYR4
Bromodichloromethane
4.142 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Xylenes, Total
0.9900 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Toluene
0.6900 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Dibromochloromethane
0.6436 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
cis-1,2-Dichloroethylene
0.6270 µg/L 0.9%
of the EPA limit 70 µg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2019
1/1 SYR4
Pfpea
0.0030 µg/L
No EPA limit set
Main supplier: EIELSON - AIR FORCE BASE · 11,870 people · 2024
1/1 UCMR-5
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
Main supplier: EIELSON - AIR FORCE BASE · 11,870 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 Eielson

SupplierPopulation served
EIELSON - AIR FORCE BASE 11,870

Frequently asked questions about Eielson tap water

Is Eielson tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Eielson. 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 Eielson?

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

What contaminants are in Eielson's water?

The contaminants EPA monitoring detected in Eielson include Copper, Nitrate-Nitrite, 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.