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Water Quality Report

Cascade, WI

St Croix County · 719 residents · 1 water system

11

Contaminants detected

0

PFAS compounds

290

Hardness (mg/L)

1

Above legal limits

1

Above health guidelines

Cascade drinking water comes from groundwater wells. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Copper, Radon, Radium, and 7 others. Water hardness is 290 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Cascade water

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

Lead0.0018 / 0.015 mg/L
12% of EPA limit
Copper1.5 / 1.3 mg/L
118% of EPA limit
Radon7623 pCi/L
UnregulatedRadionuclide
Radium0.5696 / 5 pCi/L
11% of EPA limit
Uranium0.115 / 30 ug/L
0% of EPA limit
6% of EPA limit
11% of EPA limit
Nickel0.0016 mg/L
UnregulatedInorganic
Chloromethane1.2 ug/L
UnregulatedVOC
Barium0.087 / 2 mg/L
4% of EPA limit
Fluoride0.23 / 4 mg/L
6% of EPA limit
Microplastics (not routinely tested)

Other cities in St Croix County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Cascade, WI tap water safe to drink?
Cascade tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 1 above independent health guidelines. 11 contaminants have been detected in the water supply, including Lead, Copper, Radon, Radium, Uranium. View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Cascade water?
Monitoring has detected 11 contaminants in Cascade's water supply: Lead, Copper, Radon, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Chloromethane, Barium, Fluoride. 1 of these are above EPA legal limits. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Is Cascade water hard?
Yes. Cascade water has a hardness of 290 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 Cascade get its drinking water?
Cascade'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. Cascade is served by one water system: CASCADE WATERWORKS.

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