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Water Quality Report

Peru, IL

LaSalle County · 13,466 residents · 12 water systems

9

Contaminants detected

1

PFAS compounds

—

Hardness (mg/L)

2

Above legal limits

9

Above health guidelines

Peru drinking water comes from groundwater wells. Based on the most recent monitoring data, 9 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 5 others. PFAS compounds have been detected at trace levels in Peru water.

Contaminants detected in Peru water

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

Lead0.0105 / 0.015 mg/L
70% of EPA limit
Nitrate0.226 / 10 mg/L
2% of EPA limit
Copper246 / 1300 ug/L
19% of EPA limit
Radium2.8 / 5 pCi/L
55% of EPA limit
Total Trihalomethanes22.2 / 80 ug/L
28% of EPA limit
9% of EPA limit
Barium0.0109 / 2 mg/L
1% of EPA limit
Fluoride0.767 / 4 mg/L
19% of EPA limit
Lithium60.7 ug/L
Unregulated
PFAS (1 compounds detected)
Microplastics (not routinely tested)

Other cities in LaSalle County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Peru, IL tap water safe to drink?
Peru tap water has 2 contaminants currently measured above EPA legal standards (Maximum Contaminant Levels), and 9 above independent health guidelines. 9 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, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Peru water?
Monitoring has detected 9 contaminants in Peru's water supply: Lead, Nitrate, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride, Lithium. Additionally, 1 PFAS compounds have been detected at trace levels. 2 of these are above EPA legal limits. 9 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Peru water have PFAS?
Yes. 1 PFAS compounds have been detected in Peru'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.
Where does Peru get its drinking water?
Peru'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. Peru is served by 12 water systems, the largest being PERU (serving 9,896 people).

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