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Tap water quality report

Enumclaw, WA

EPA monitoring detected 9 contaminants across the 1 water supplier serving Enumclaw. 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
23,276
people served
9
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Enumclaw'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
2000 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Nitrate
1995 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
TTHM
9.775 µg/L 12%
of the EPA limit 80 µg/L
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Chloroform
5.12 µg/L
No EPA limit set
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Bromodichloromethane
2.572 µg/L
No EPA limit set
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Dibromochloromethane
1.72 µg/L
No EPA limit set
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Dichloroacetic Acid
1.09 µg/L
No EPA limit set
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.09 µg/L 1.8%
of the EPA limit 60 µg/L
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2019
1/1 SYR4
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
Main supplier: ENUMCLAW WATER DEPARTMENT · 23,276 people · 2025
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 Enumclaw

SupplierPopulation served
ENUMCLAW WATER DEPARTMENT 23,276

Frequently asked questions about Enumclaw tap water

Is Enumclaw tap water safe to drink?

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

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

What contaminants are in Enumclaw's water?

The contaminants EPA monitoring detected in Enumclaw include Nitrate-Nitrite, Nitrate, TTHM, Chloroform, Bromodichloromethane. 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.