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Tap water quality report

South Milwaukee, WI

EPA monitoring detected 20 contaminants across the 1 water supplier serving South Milwaukee. 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
21,340
people served
20
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in South Milwaukee'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
Fluoride
1038.5 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Nitrate-Nitrite
550 µg/L 5.5%
of the EPA limit 10000 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Copper
200 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2017
1/1 SYR4
TTHM
68.17 µg/L 85%
of the EPA limit 80 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Chloroform
48.6 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
39.239 µg/L 65%
of the EPA limit 60 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Barium
22 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Dichloroacetic Acid
20 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Trichloroacetic Acid
18.7 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Bromodichloromethane
17 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Lead
14 µg/L 93%
of the EPA limit 15 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2017
1/1 SYR4
Dibromochloromethane
6.23 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Monochloroacetic Acid
1.865 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.6 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.4 pCi/L 28%
of the EPA limit 5 pCi/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2014
1/1 SYR4
Monobromoacetic Acid
1.3 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Arsenic
1.19 µg/L 12%
of the EPA limit 10 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Bromoform
0.7685 µg/L
No EPA limit set
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Mercury
0.0693 µg/L 3.5%
of the EPA limit 2 µg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2019
1/1 SYR4
Lead
0.0077 mg/L 51%
of the EPA limit 0.0150 mg/L
Main supplier: SOUTH MILWAUKEE WATERWORKS · 21,340 people · 2023
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 South Milwaukee

SupplierPopulation served
SOUTH MILWAUKEE WATERWORKS 21,340

Frequently asked questions about South Milwaukee tap water

Is South Milwaukee tap water safe to drink?

EPA testing detected 20 contaminants in the water serving South Milwaukee. 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 South Milwaukee?

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

What contaminants are in South Milwaukee's water?

The contaminants EPA monitoring detected in South Milwaukee include Fluoride, Nitrate-Nitrite, Copper, TTHM, Chloroform. 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.