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Tap water quality report

Wallace, ID

EPA monitoring detected 8 contaminants across the 3 water suppliers serving Wallace. 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
3,273
people served
8
contaminants found
Idaho rankings Lead in Idaho PFAS in Idaho

What was found in Wallace'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
80 µg/L 0.8%
of the EPA limit 10000 µg/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2019
2/3 SYR4
Barium
8 µg/L 0.4%
of the EPA limit 2000 µg/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2019
Highest in the city: 35 µg/L — E SHOSHONE COUNTY WATER DIST MULLAN · 840 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
14.26 µg/L 24%
of the EPA limit 60 µg/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2019
Highest in the city: 22.775 µg/L — E SHOSHONE COUNTY WATER DIST BURKE · 45 people · 2019
3/3 SYR4
TTHM
14.378 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2019
Highest in the city: 17.325 µg/L — E SHOSHONE COUNTY WATER DIST BURKE · 45 people · 2019
3/3 SYR4
Gross Alpha, Excl. Radon And U
0.5000 pCi/L 3.3%
of the EPA limit 15 pCi/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2016
Highest in the city: 1 pCi/L — E SHOSHONE COUNTY WATER DIST MULLAN · 840 people · 2016
2/3 SYR4
Combined Radium (-226 And -228)
0.5000 pCi/L 10%
of the EPA limit 5 pCi/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2013
3/3 SYR4
Cadmium
0.3000 µg/L 6%
of the EPA limit 5 µg/L
Highest in the city: E SHOSHONE COUNTY WATER DIST MULLAN · 840 people · 2019
1/3 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: E SHOSHONE COUNTY WATER DIST WALLACE · 2,388 people · 2025
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 Wallace

SupplierPopulation served
E SHOSHONE COUNTY WATER DIST WALLACE 2,388
E SHOSHONE COUNTY WATER DIST MULLAN 840
E SHOSHONE COUNTY WATER DIST BURKE 45

Frequently asked questions about Wallace tap water

Is Wallace tap water safe to drink?

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

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

What contaminants are in Wallace's water?

The contaminants EPA monitoring detected in Wallace include Nitrate, Barium, Total Haloacetic Acids (HAA5), TTHM, Gross Alpha, Excl. Radon And U. 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.