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Tap water quality report

Altoona, WI

EPA monitoring detected 20 contaminants across the 2 water suppliers serving Altoona. 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
10,477
people served
20
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in Altoona'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
3700 µg/L 37%
of the EPA limit 10000 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
2/2 SYR4
Nitrate
3400 µg/L 34%
of the EPA limit 10000 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
2/2 SYR4
Copper
763 µg/L 59%
of the EPA limit 1300 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
2/2 SYR4
Barium
29.9 µg/L 1.5%
of the EPA limit 2000 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
2/2 SYR4
TTHM
11.61 µg/L 15%
of the EPA limit 80 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Lead
8.86 µg/L 59%
of the EPA limit 15 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
Highest in the city: 10.63 µg/L — HILLCREST ESTATES MHP · 850 people · 2018
2/2 SYR4
Chromium
1.295 µg/L 1.3%
of the EPA limit 100 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
Highest in the city: 4.6 µg/L — HILLCREST ESTATES MHP · 850 people · 2018
2/2 SYR4
Combined Radium (-226 And -228)
4.2065 pCi/L 84%
of the EPA limit 5 pCi/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
2/2 SYR4
Bromodichloromethane
3.69 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Dibromochloromethane
3.64 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Chloroform
3.575 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
2.768 pCi/L 18%
of the EPA limit 15 pCi/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2017
2/2 SYR4
Total Haloacetic Acids (HAA5)
2.356 µg/L 3.9%
of the EPA limit 60 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Bromoform
1.48 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Dibromoacetic Acid
0.9135 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Dichloromethane
0.8860 µg/L 18%
of the EPA limit 5 µg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Dichloroacetic Acid
0.8395 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Monobromoacetic Acid
0.3500 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Trichloroacetic Acid
0.3500 µg/L
No EPA limit set
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2019
1/2 SYR4
Lead
0.00099 mg/L 6.6%
of the EPA limit 0.0150 mg/L
Main supplier: ALTOONA WATERWORKS · 9,627 people · 2025
Highest in the city: 0.0053 mg/L — HILLCREST ESTATES MHP · 850 people · 2024
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 Altoona

SupplierPopulation served
ALTOONA WATERWORKS 9,627
HILLCREST ESTATES MHP 850

Frequently asked questions about Altoona tap water

Is Altoona tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Altoona. 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 Altoona?

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

What contaminants are in Altoona's water?

The contaminants EPA monitoring detected in Altoona include Nitrate-Nitrite, Nitrate, Copper, Barium, TTHM. 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.