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Tap water quality report

Kodiak, AK

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Kodiak. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
12,639
people served
18
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Kodiak's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
1510 µg/L 116%
of the EPA limit, in the worst sample — 1300 µg/L
 2/2 SYR4
Nitrate-Nitrite
682 µg/L 6.8%
of the EPA limit 10000 µg/L
 2/2 SYR4
Nitrate
188 µg/L 1.9%
of the EPA limit 10000 µg/L
 1/2 SYR4
Lead
135 µg/L 900%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
TTHM
88.4 µg/L 111%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Chloroform
77.1 µg/L
No EPA limit set
 2/2 SYR4
Total Haloacetic Acids (HAA5)
68.7 µg/L 115%
of the EPA limit, in the worst sample — 60 µg/L
 2/2 SYR4
Trichloroacetic Acid
40.6 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
28.1 µg/L
No EPA limit set
 2/2 SYR4
Barium
13 µg/L 0.7%
of the EPA limit 2000 µg/L
 2/2 SYR4
Bromodichloromethane
13 µg/L
No EPA limit set
 2/2 SYR4
Dibromoacetic Acid
12.8 µg/L
No EPA limit set
 1/2 SYR4
Monochloroacetic Acid
6.1 µg/L
No EPA limit set
 1/2 SYR4
Monobromoacetic Acid
4.8 µg/L
No EPA limit set
 2/2 SYR4
Dibromochloromethane
2.65 µg/L
No EPA limit set
 2/2 SYR4
Combined Radium (-226 And -228)
1.6 pCi/L 32%
of the EPA limit 5 pCi/L
 1/2 SYR4
Arsenic
0.1880 µg/L 1.9%
of the EPA limit 10 µg/L
 1/2 SYR4
Lead
0.0039 mg/L 26%
of the EPA limit 0.0150 mg/L
 2/2 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 single worst sample on record — 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 Kodiak

SupplierPopulation served
KODIAK WATER SYSTEM 9,547
USCG STATION KODIAK 3,092

Frequently asked questions about Kodiak tap water

Is Kodiak tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Kodiak. 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 Kodiak?

2 public water suppliers report drinking-water monitoring for Kodiak, Alaska to the EPA. Each is listed above with its population served.

What contaminants are in Kodiak's water?

The contaminants EPA monitoring detected in Kodiak include Copper, Nitrate-Nitrite, Nitrate, Lead, TTHM. The full list, with the highest level found 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.