Petersburg drinking water comes from groundwater wells. Based on the most recent monitoring data, 8 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 4 others. PFAS testing has been conducted with no detections. Water hardness is 122 mg/L (hard), which is within a typical range for the region.
Contaminants detected in Petersburg water
8 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Petersburg tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 8 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, 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 Petersburg water?
Monitoring has detected 8 contaminants in Petersburg's water supply: Lead, Nitrate, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Petersburg water have PFAS?
Petersburg'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 Petersburg water hard?
Yes. Petersburg water has a hardness of 122 mg/L (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 Petersburg get its drinking water?
Petersburg'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. Petersburg is served by 3 water systems, the largest being PETERSBURG (serving 4,725 people).
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