Quincy drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 12 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, and 8 others. PFAS compounds have been detected at trace levels in Quincy water. Water hardness is 400 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Quincy water
12 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Quincy tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 4 above independent health guidelines. 12 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Quincy water?
Monitoring has detected 12 contaminants in Quincy's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Fluoride, 2,4-D, Barium, Chromium (total), Toc, PFBA (Perfluorobutanoic Acid). Additionally, 5 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Quincy water have PFAS?
Yes. 5 PFAS compounds have been detected in Quincy'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 Quincy water hard?
Yes. Quincy water has a hardness of 400 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 Quincy get its drinking water?
Quincy's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Quincy is served by 4 water systems, the largest being QUINCY (serving 42,000 people).
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