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Tap water quality report

Snoqualime, WA

EPA monitoring detected 9 contaminants across the 1 water supplier serving Snoqualime. 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
20,222
people served
9
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Snoqualime'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
700 µg/L 7%
of the EPA limit 10000 µg/L
Main supplier: SNOQUALMIE WATER · 20,222 people · 2018
1/1 SYR4
TTHM
21.79 µg/L 27%
of the EPA limit 80 µg/L
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Chloroform
14.17 µg/L
No EPA limit set
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
12.325 µg/L 21%
of the EPA limit 60 µg/L
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Trichloroacetic Acid
7.74 µg/L
No EPA limit set
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Bromodichloromethane
5.735 µg/L
No EPA limit set
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Dichloroacetic Acid
5 µg/L
No EPA limit set
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Dibromochloromethane
2.28 µg/L
No EPA limit set
Main supplier: SNOQUALMIE WATER · 20,222 people · 2019
1/1 SYR4
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: SNOQUALMIE WATER · 20,222 people · 2024
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 Snoqualime

SupplierPopulation served
SNOQUALMIE WATER 20,222

Frequently asked questions about Snoqualime tap water

Is Snoqualime tap water safe to drink?

EPA testing detected 9 contaminants in the water serving Snoqualime. 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 Snoqualime?

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

What contaminants are in Snoqualime's water?

The contaminants EPA monitoring detected in Snoqualime include Nitrate, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic 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.