McLean County · 59,831 residents · 3 water systems
8
Contaminants detected
0
PFAS compounds
297
Hardness (mg/L)
1
Above legal limits
2
Above health guidelines
Normal drinking water comes from groundwater wells. Based on the most recent monitoring data, 8 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Total Trihalomethanes, and 4 others. PFAS testing has been conducted with no detections. Water hardness is 297 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Normal water
8 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Normal tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 8 contaminants have been detected in the water supply, including Lead, Arsenic, 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 Normal water?
Monitoring has detected 8 contaminants in Normal's water supply: Lead, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride, Phosphorus Total. 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Normal water have PFAS?
Normal's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Is Normal water hard?
Yes. Normal water has a hardness of 297 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 Normal get its drinking water?
Normal's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Normal is served by 3 water systems, the largest being NORMAL (serving 52,736 people).
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