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Water Quality Report

Henry, IL

Marshall County · 2,230 residents · 1 water system

11

Contaminants detected

5

PFAS compounds

276

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Henry 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, Copper, Radium, and 7 others. PFAS compounds have been detected at trace levels in Henry water. Water hardness is 276 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Henry water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.0011 / 0.015 mg/L
7% of EPA limit
Nitrate9.6 / 10 mg/L
96% of EPA limit
Copper36 / 1300 ug/L
3% of EPA limit
Radium1.1 / 5 pCi/L
23% of EPA limit
4% of EPA limit
Selenium0.0037 / 0.05 mg/L
7% of EPA limit
Barium0.0377 / 2 mg/L
2% of EPA limit
Fluoride0.13 / 4 mg/L
3% of EPA limit
PFHpA (Perfluoroheptanoic Acid)0.8 ng/L
UnregulatedPFAS
PFBA (Perfluorobutanoic Acid)3 ng/L
UnregulatedPFAS
PFPeA (Perfluoropentanoic Acid)2.2 ng/L
UnregulatedPFAS
PFAS (5 compounds detected)
Microplastics (not routinely tested)

Other cities in Marshall County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Henry, IL tap water safe to drink?
Henry tap water meets EPA legal standards (Maximum Contaminant Levels). However, 1 contaminant is present above independent health guidelines, which are often stricter than legal limits. 11 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 Henry water?
Monitoring has detected 11 contaminants in Henry's water supply: Lead, Nitrate, Copper, Radium, Total Trihalomethanes, Selenium, Barium, Fluoride, PFHpA (Perfluoroheptanoic Acid), PFBA (Perfluorobutanoic Acid), PFPeA (Perfluoropentanoic Acid). Additionally, 5 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Henry water have PFAS?
Yes. 5 PFAS compounds have been detected in Henry'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 Henry water hard?
Yes. Henry water has a hardness of 276 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 Henry get its drinking water?
Henry'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. Henry is served by one water system: HENRY.

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