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Tap water quality report

Chugiak, AK

EPA monitoring detected 12 contaminants across the 10 water suppliers serving Chugiak. 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.

10
water suppliers
836
people served
12
contaminants found

What was found in Chugiak'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
Nitrate-Nitrite
4793 µg/L 48%
of the EPA limit 10000 µg/L
Main supplier: FOREST PARK TC · 175 people · 2019
Highest in the city: 9980 µg/L — BEAR MOUNTAIN CONDO ASSN. · 65 people · 2019
9/10 SYR4
Nitrate
7340 µg/L 73%
of the EPA limit 10000 µg/L
Highest in the city: BIRCHWOOD MHP · 120 people · 2017
3/10 SYR4
Copper
819.35 µg/L 63%
of the EPA limit 1300 µg/L
Main supplier: FOREST PARK TC · 175 people · 2017
10/10 SYR4
Lead
0.8636 µg/L 5.8%
of the EPA limit 15 µg/L
Main supplier: FOREST PARK TC · 175 people · 2017
Highest in the city: 243.29 µg/L — TROLL KNOLL S/D · 99 people · 2019
10/10 SYR4
Fluoride
105 µg/L 2.6%
of the EPA limit 4000 µg/L
Main supplier: FOREST PARK TC · 175 people · 2019
1/10 SYR4
Barium
16.2385 µg/L 0.8%
of the EPA limit 2000 µg/L
Main supplier: FOREST PARK TC · 175 people · 2019
Highest in the city: 16.7 µg/L — PETERS CREEK TERRACE · 70 people · 2016
8/10 SYR4
Chromium
4.0505 µg/L 4.1%
of the EPA limit 100 µg/L
Highest in the city: BEAR MOUNTAIN CONDO ASSN. · 65 people · 2019
6/10 SYR4
Arsenic
3.37 µg/L 34%
of the EPA limit 10 µg/L
Highest in the city: PETERS CREEK TERRACE APTS. · 48 people · 2013
3/10 SYR4
Combined Radium (-226 And -228)
1.3 pCi/L 26%
of the EPA limit 5 pCi/L
Highest in the city: BEAR MOUNTAIN CONDO ASSN. · 65 people · 2019
1/10 SYR4
Di(2-ethylhexyl) Phthalate
0.8000 µg/L 13%
of the EPA limit 6 µg/L
Highest in the city: TROLL KNOLL S/D · 99 people · 2016
1/10 SYR4
Xylenes, Total
0.6200 µg/L 0%
of the EPA limit 10000 µg/L
Highest in the city: OASIS WATER - MCKINLEY VIEW DIV · 130 people · 2019
1/10 SYR4
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
Main supplier: FOREST PARK TC · 175 people · 2020
Highest in the city: 0.0200 mg/L — BIRCHWOOD MHP · 120 people · 2024
10/10 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 Chugiak

Frequently asked questions about Chugiak tap water

Is Chugiak tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Chugiak. 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 Chugiak?

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

What contaminants are in Chugiak's water?

The contaminants EPA monitoring detected in Chugiak include Nitrate-Nitrite, Nitrate, Copper, Lead, Fluoride. 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.