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Tap water quality report

Tenino, WA

EPA monitoring detected 13 contaminants across the 2 water suppliers serving Tenino. 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
3,561
people served
13
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Tenino'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
962 µg/L 9.6%
of the EPA limit 10000 µg/L
Main supplier: Tenino City of · 3,336 people · 2019
Highest in the city: 1700 µg/L — BRONSON BEACH CLUB · 225 people · 2019
2/2 SYR4
Nitrate-Nitrite
990 µg/L 9.9%
of the EPA limit 10000 µg/L
Main supplier: Tenino City of · 3,336 people · 2018
Highest in the city: 1700 µg/L — BRONSON BEACH CLUB · 225 people · 2018
2/2 SYR4
TTHM
9.572 µg/L 12%
of the EPA limit 80 µg/L
Main supplier: Tenino City of · 3,336 people · 2019
2/2 SYR4
Chloroform
5.9 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
1/2 SYR4
Bromoform
1.69 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
Highest in the city: 4.995 µg/L — BRONSON BEACH CLUB · 225 people · 2019
2/2 SYR4
Dichloroacetic Acid
3.4 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
3.292 µg/L 5.5%
of the EPA limit 60 µg/L
Main supplier: Tenino City of · 3,336 people · 2018
2/2 SYR4
Dibromochloromethane
2.2985 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
Highest in the city: 3 µg/L — BRONSON BEACH CLUB · 225 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.4 µg/L
No EPA limit set
Highest in the city: BRONSON BEACH CLUB · 225 people · 2017
1/2 SYR4
Bromodichloromethane
2.204 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
2/2 SYR4
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
Highest in the city: BRONSON BEACH CLUB · 225 people · 2018
1/2 SYR4
Trichloroacetic Acid
1.24 µg/L
No EPA limit set
Main supplier: Tenino City of · 3,336 people · 2019
1/2 SYR4
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
Main supplier: Tenino City of · 3,336 people · 2023
2/2 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 Tenino

SupplierPopulation served
Tenino City of 3,336
BRONSON BEACH CLUB 225

Frequently asked questions about Tenino tap water

Is Tenino tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Tenino. 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 Tenino?

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

What contaminants are in Tenino's water?

The contaminants EPA monitoring detected in Tenino include Nitrate, Nitrate-Nitrite, TTHM, Chloroform, Bromoform. 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.