Rock Island County · 46,818 residents · 2 water systems
11
Contaminants detected
6
PFAS compounds
350
Hardness (mg/L)
0
Above legal limits
0
Above health guidelines
Rock Island drinking water comes from surface water. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, and 7 others. PFAS compounds have been detected at trace levels in Rock Island water. Water hardness is 350 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Rock Island water
11 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Rock Island tap water meets EPA legal standards (Maximum Contaminant Levels) and independent health guidelines. 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). Detection does not necessarily mean unsafe levels. View the detailed report for each water system to see specific levels.
What contaminants are in Rock Island water?
Monitoring has detected 11 contaminants in Rock Island's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), PFHpA (Perfluoroheptanoic Acid), PFPeA (Perfluoropentanoic Acid), Barium, Fluoride, Toc, PFBA (Perfluorobutanoic Acid). Additionally, 6 PFAS compounds have been detected at trace levels. See individual system reports for concentrations relative to EPA limits.
Does Rock Island water have PFAS?
Yes. 6 PFAS compounds have been detected in Rock Island'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 Rock Island water hard?
Yes. Rock Island water has a hardness of 350 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 Rock Island get its drinking water?
Rock Island's drinking water comes from surface water sources. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Rock Island is served by 2 water systems, the largest being ROCK ISLAND (serving 39,018 people).
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