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Tap water quality report

Lynnwood, WA

EPA monitoring detected 8 contaminants across the 2 water suppliers serving Lynnwood. 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.

2
water suppliers
313,919
people served
8
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Lynnwood'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
TTHM
54.66 µg/L 68%
of the EPA limit 80 µg/L
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
2/2 SYR4
Chloroform
52.54 µg/L
No EPA limit set
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
40.61 µg/L 68%
of the EPA limit 60 µg/L
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
Highest in the city: 42.85 µg/L — LYNNWOOD CITY OF · 68,204 people · 2019
2/2 SYR4
Trichloroacetic Acid
24.76 µg/L
No EPA limit set
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
Highest in the city: 25.4 µg/L — LYNNWOOD CITY OF · 68,204 people · 2019
2/2 SYR4
Dichloroacetic Acid
16.21 µg/L
No EPA limit set
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
Highest in the city: 17.32 µg/L — LYNNWOOD CITY OF · 68,204 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.335 µg/L
No EPA limit set
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
Highest in the city: 3.86 µg/L — LYNNWOOD CITY OF · 68,204 people · 2019
2/2 SYR4
Bromodichloromethane
2.6 µg/L
No EPA limit set
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 2019
2/2 SYR4
Lead
0.0280 mg/L 187%
above the EPA limit of 0.0150 mg/L
Main supplier: ALDERWOOD WATER DISTRICT · 245,715 people · 1992
1/2 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 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 Lynnwood

SupplierPopulation served
ALDERWOOD WATER DISTRICT 245,715
LYNNWOOD CITY OF 68,204

Frequently asked questions about Lynnwood tap water

Is Lynnwood tap water safe to drink?

EPA testing detected 8 contaminants in the water serving Lynnwood. 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 Lynnwood?

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

What contaminants are in Lynnwood's water?

The contaminants EPA monitoring detected in Lynnwood include TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid. 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.