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Tap water quality report

Cold Bay, AK

EPA monitoring detected 12 contaminants across the 1 water supplier serving Cold Bay. 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
182
people served
12
contaminants found
Alaska rankings Lead in Alaska PFAS in Alaska

What was found in Cold Bay'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
163.6 µg/L 13%
of the EPA limit 1300 µg/L
Main supplier: COLD BAY · 182 people · 2019
1/1 SYR4
Nitrate-Nitrite
152 µg/L 1.5%
of the EPA limit 10000 µg/L
Main supplier: COLD BAY · 182 people · 2019
1/1 SYR4
TTHM
24.49 µg/L 31%
of the EPA limit 80 µg/L
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Bromoform
17.19 µg/L
No EPA limit set
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Dibromochloromethane
6.72 µg/L
No EPA limit set
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Barium
6.22 µg/L 0.3%
of the EPA limit 2000 µg/L
Main supplier: COLD BAY · 182 people · 2019
1/1 SYR4
Lead
5.628 µg/L 38%
of the EPA limit 15 µg/L
Main supplier: COLD BAY · 182 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.6685 µg/L
No EPA limit set
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.6685 µg/L 4.4%
of the EPA limit 60 µg/L
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Bromodichloromethane
1.523 µg/L
No EPA limit set
Main supplier: COLD BAY · 182 people · 2017
1/1 SYR4
Arsenic
0.9400 µg/L 9.4%
of the EPA limit 10 µg/L
Main supplier: COLD BAY · 182 people · 2013
1/1 SYR4
Lead
0.0035 mg/L 23%
of the EPA limit 0.0150 mg/L
Main supplier: COLD BAY · 182 people · 2028
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 Cold Bay

SupplierPopulation served
COLD BAY 182

Frequently asked questions about Cold Bay tap water

Is Cold Bay tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Cold Bay. 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 Cold Bay?

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

What contaminants are in Cold Bay's water?

The contaminants EPA monitoring detected in Cold Bay include Copper, Nitrate-Nitrite, TTHM, Bromoform, Dibromochloromethane. 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.