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Tap water quality report

Florence, WI

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Florence. 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
1,280
people served
18
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in Florence'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
1216 µg/L 30%
of the EPA limit 4000 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Copper
1100 µg/L 85%
of the EPA limit 1300 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
Nitrate
960 µg/L 9.6%
of the EPA limit 10000 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Nitrate-Nitrite
830 µg/L 8.3%
of the EPA limit 10000 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
Barium
65.6 µg/L 3.3%
of the EPA limit 2000 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
TTHM
41.9775 µg/L 52%
of the EPA limit 80 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Chloroform
35 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
12.125 µg/L 20%
of the EPA limit 60 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Trichloroacetic Acid
9.86 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Bromodichloromethane
7.675 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Lead
7.275 µg/L 49%
of the EPA limit 15 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
Arsenic
4.555 µg/L 46%
of the EPA limit 10 µg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
Gross Alpha, Excl. Radon And U
3.24 pCi/L 22%
of the EPA limit 15 pCi/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2014
1/2 SYR4
Dibromochloromethane
2.9 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
2.892 pCi/L 58%
of the EPA limit 5 pCi/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2017
1/2 SYR4
Dichloroacetic Acid
2.62 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Dibromoacetic Acid
0.2000 µg/L
No EPA limit set
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2019
1/2 SYR4
Lead
0.00041 mg/L 2.7%
of the EPA limit 0.0150 mg/L
Main supplier: FLORENCE UTILITY COMMISSION · 1,250 people · 2023
Highest in the city: 0.0081 mg/L — KEYES LAKE MOBILE HOME PARK · 30 people · 2025
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 Florence

SupplierPopulation served
FLORENCE UTILITY COMMISSION 1,250
KEYES LAKE MOBILE HOME PARK 30

Frequently asked questions about Florence tap water

Is Florence tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Florence. 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 Florence?

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

What contaminants are in Florence's water?

The contaminants EPA monitoring detected in Florence include Fluoride, Copper, Nitrate, Nitrate-Nitrite, 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.