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Water Quality Report

Florence, WI

Florence County · 1,250 residents · 1 water system

13

Contaminants detected

4

PFAS compounds

270

Hardness (mg/L)

0

Above legal limits

4

Above health guidelines

Florence drinking water comes from groundwater wells. Based on the most recent monitoring data, 13 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 9 others. PFAS compounds have been detected at trace levels in Florence water. Water hardness is 270 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Florence water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.00041 / 0.015 mg/L
3% of EPA limit
Nitrate0.83 / 10 mg/L
8% of EPA limit
Arsenic0.0056 / 0.01 mg/L
56% of EPA limit
Copper960 / 1300 ug/L
74% of EPA limit
Radium1.1 / 5 pCi/L
22% of EPA limit
Uranium1.3 / 30 ug/L
4% of EPA limit
Gross Alpha Radiation2.8 / 15 pCi/L
19% of EPA limit
Total Trihalomethanes49.8 / 80 ug/L
62% of EPA limit
Haloacetic Acids (HAA5)11.8 / 60 ug/L
20% of EPA limit
Nickel0.0016 mg/L
UnregulatedInorganic
Selenium0.0011 / 0.05 mg/L
2% of EPA limit
Fluoride0.63 / 4 mg/L
16% of EPA limit
Barium0.045 / 2 mg/L
2% of EPA limit
PFAS (4 compounds detected)
Microplastics (not routinely tested)

Water systems serving Florence

FLORENCE UTILITY COMMISSION

1,250 servedGroundwater13 contaminants4 above guidelines
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Frequently asked questions

Is Florence, WI tap water safe to drink?
Florence tap water meets EPA legal standards (Maximum Contaminant Levels). However, 4 contaminants are present above independent health guidelines, which are often stricter than legal limits. 13 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, Radium. View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in Florence water?
Monitoring has detected 13 contaminants in Florence's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, Fluoride, Barium. Additionally, 4 PFAS compounds have been detected at trace levels. 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Florence water have PFAS?
Yes. 4 PFAS compounds have been detected in Florence's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Florence water hard?
Yes. Florence water has a hardness of 270 mg/L (very hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does Florence get its drinking water?
Florence's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Florence is served by one water system: FLORENCE UTILITY COMMISSION.

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