Milwaukee County · 32,436 residents · 4 water systems
16
Contaminants detected
5
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
5
Above health guidelines
Oak Creek drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 16 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 12 others. PFAS compounds have been detected at trace levels in Oak Creek water.
Contaminants detected in Oak Creek water
16 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Oak Creek tap water meets EPA legal standards (Maximum Contaminant Levels). However, 5 contaminants are present above independent health guidelines, which are often stricter than legal limits. 16 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes. 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 Oak Creek water?
Monitoring has detected 16 contaminants in Oak Creek's water supply: Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Nickel, Selenium, Fluoride, Mercury (inorganic), Barium, Chloroethane, Metolachlor, PFHpA (Perfluoroheptanoic Acid), Toc. Additionally, 5 PFAS compounds have been detected at trace levels. 5 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Oak Creek water have PFAS?
Yes. 5 PFAS compounds have been detected in Oak Creek'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.
Where does Oak Creek get its drinking water?
Oak Creek's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Oak Creek is served by 4 water systems, the largest being OAK CREEK WATERWORKS (serving 32,104 people).
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