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Water Quality Report

Chillicothe, IL

Peoria County · 6,956 residents · 4 water systems

15

Contaminants detected

10

PFAS compounds

265

Hardness (mg/L)

1

Above legal limits

7

Above health guidelines

Chillicothe drinking water comes from groundwater wells. Based on the most recent monitoring data, 15 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, and 11 others. PFAS compounds have been detected at trace levels in Chillicothe water. Water hardness is 265 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Chillicothe water

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

Lead0.0014 / 0.015 mg/L
9% of EPA limit
Nitrate3.4 / 10 mg/L
34% of EPA limit
Copper120 / 1300 ug/L
9% of EPA limit
Total Trihalomethanes2.3 / 80 ug/L
3% of EPA limit
Selenium0.0013 / 0.05 mg/L
3% of EPA limit
Barium0.055 / 2 mg/L
3% of EPA limit
Fluoride1 / 4 mg/L
25% of EPA limit
PFHpA (Perfluoroheptanoic Acid)0.9 ng/L
UnregulatedPFAS
PFPeA (Perfluoropentanoic Acid)2.1 ng/L
UnregulatedPFAS
Pfhps0.5 ng/L
UnregulatedPFAS
PFPeS (Perfluoropentane Sulfonate)2.5 ng/L
UnregulatedPFAS
PFBA (Perfluorobutanoic Acid)2.5 ng/L
UnregulatedPFAS
Pfpea0.0044 ug/L
Unregulated
6:2 FTS0.005 ug/L
Unregulated
Pfhxa0.0034 ug/L
Unregulated
PFAS (10 compounds detected)
Microplastics (not routinely tested)

Water systems serving Chillicothe

CHILLICOTHE

6,660 servedGroundwater15 contaminants2 above guidelines
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FAWN HILLS SUBDIVISION

183 servedGroundwater5 contaminants1 above guideline
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SANTA FE ESTATES WATER ASSOCIATION

68 servedGroundwater17 contaminants2 above guidelines
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BUFFALO HOLLOW FARMS WATER ASSOC

45 servedGroundwater4 contaminants1 above legal limit2 above guidelines
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Other cities in Peoria County

Water quality reports for nearby Illinois communities.

BrimfieldDunlapEast PeoriaElmwoodFarmingtonGlasfordGodfreyHanna CityKingston MinesMapletonPeoriaPeoria Heights

Frequently asked questions

Is Chillicothe, IL tap water safe to drink?
Chillicothe tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 7 above independent health guidelines. 15 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, Selenium. 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 Chillicothe water?
Monitoring has detected 15 contaminants in Chillicothe's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Selenium, Barium, Fluoride, PFHpA (Perfluoroheptanoic Acid), PFPeA (Perfluoropentanoic Acid), Pfhps, PFPeS (Perfluoropentane Sulfonate), PFBA (Perfluorobutanoic Acid), Pfpea, 6:2 FTS, Pfhxa. Additionally, 10 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. 7 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Chillicothe water have PFAS?
Yes. 10 PFAS compounds have been detected in Chillicothe'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 Chillicothe water hard?
Yes. Chillicothe water has a hardness of 265 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 Chillicothe get its drinking water?
Chillicothe'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. Chillicothe is served by 4 water systems, the largest being CHILLICOTHE (serving 6,660 people).

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