Standard drinking water comes from groundwater wells. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 7 others. Water hardness is 213 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Standard water
11 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Standard tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 11 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, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Standard water?
Monitoring has detected 11 contaminants in Standard's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Selenium, Nitrite, Barium, Fluoride. 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Is Standard water hard?
Yes. Standard water has a hardness of 213 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 Standard get its drinking water?
Standard'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. Standard is served by one water system: STANDARD.
Check your water quality
Enter your address for a detailed report specific to your water system.
On a private well? Search your address for nearby groundwater monitoring data.