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Tap water quality report

Aberdeen, WA

EPA monitoring detected 11 contaminants across the 3 water suppliers serving Aberdeen. 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.

3
water suppliers
22,964
people served
11
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Aberdeen'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
Fluoride
865 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
1/3 SYR4
Nitrate
41 µg/L 0.4%
of the EPA limit 10000 µg/L
Highest in the city: VIKINGS WEST MOBILE HOME · 71 people · 2019
1/3 SYR4
TTHM
15.06 µg/L 19%
of the EPA limit 80 µg/L
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
2/3 SYR4
Total Haloacetic Acids (HAA5)
13 µg/L 22%
of the EPA limit 60 µg/L
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
2/3 SYR4
Chloroform
11.772 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
2/3 SYR4
Trichloroacetic Acid
8.075 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
1/3 SYR4
Dichloroacetic Acid
5.54 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
2/3 SYR4
Monobromoacetic Acid
4.3 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
1/3 SYR4
Bromodichloromethane
2.924 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
1/3 SYR4
Dibromochloromethane
1.0025 µg/L
No EPA limit set
Main supplier: ABERDEEN CITY OF · 22,867 people · 2019
1/3 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: ABERDEEN CITY OF · 22,867 people · 2024
Highest in the city: 0.0067 mg/L — Ocosta Mobile Home Park LLC · 26 people · 2021
3/3 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 Aberdeen

SupplierPopulation served
ABERDEEN CITY OF 22,867
VIKINGS WEST MOBILE HOME 71
Ocosta Mobile Home Park LLC 26

Frequently asked questions about Aberdeen tap water

Is Aberdeen tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Aberdeen. 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 Aberdeen?

3 public water suppliers report drinking-water monitoring for Aberdeen, Washington to the EPA. Each is listed above with its population served.

What contaminants are in Aberdeen's water?

The contaminants EPA monitoring detected in Aberdeen include Fluoride, Nitrate, TTHM, Total Haloacetic Acids (HAA5), 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.