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Tap water quality report

Sturgeon Bay, WI

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Sturgeon Bay. 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
9,760
people served
19
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in Sturgeon Bay'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
5465 µg/L 55%
of the EPA limit 10000 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
Highest in the city: 6500 µg/L — CARLTON HEIGHTS MHP CT 2 · 60 people · 2019
2/2 SYR4
Nitrate-Nitrite
5565 µg/L 56%
of the EPA limit 10000 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2017
2/2 SYR4
Fluoride
1145 µg/L 29%
of the EPA limit 4000 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Copper
1064.6 µg/L 82%
of the EPA limit 1300 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
2/2 SYR4
Barium
60 µg/L 3%
of the EPA limit 2000 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2017
2/2 SYR4
TTHM
23.0655 µg/L 29%
of the EPA limit 80 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Lead
20.1 µg/L 134%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
2/2 SYR4
Chloroform
13.8 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Bromate
11 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
7.1715 µg/L 12%
of the EPA limit 60 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Bromodichloromethane
6.34 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Trichloroacetic Acid
3.865 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Dibromochloromethane
3.28 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Dichloroacetic Acid
3.175 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Dibromoacetic Acid
0.8800 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Combined Uranium
0.8746 µg/L 2.9%
of the EPA limit 30 µg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2017
1/2 SYR4
Bromoform
0.8370 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Monobromoacetic Acid
0.5205 µg/L
No EPA limit set
Main supplier: STURGEON BAY WATERWORKS · 9,700 people · 2019
1/2 SYR4
Lead
0.0036 mg/L 24%
of the EPA limit 0.0150 mg/L
Main supplier: STURGEON BAY WATERWORKS · 9,700 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 Sturgeon Bay

SupplierPopulation served
STURGEON BAY WATERWORKS 9,700
CARLTON HEIGHTS MHP CT 2 60

Frequently asked questions about Sturgeon Bay tap water

Is Sturgeon Bay tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Sturgeon Bay. 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 Sturgeon Bay?

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

What contaminants are in Sturgeon Bay's water?

The contaminants EPA monitoring detected in Sturgeon Bay include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. 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.