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Water Quality Report

Oneida, IL

Knox County · 644 residents · 1 water system

5

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Oneida drinking water comes from groundwater wells. Based on the most recent monitoring data, 5 contaminants have been detected in the water supply, including Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5), and 1 others.

Contaminants detected in Oneida water

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

Lead0 / 0.015 mg/L
0% of EPA limit
Nitrate0.04 / 10 mg/L
0% of EPA limit
44% of EPA limit
13% of EPA limit
Fluoride2.2 / 4 mg/L
55% of EPA limit
Microplastics (not routinely tested)

Other cities in Knox County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Oneida, IL tap water safe to drink?
Oneida 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. 5 contaminants have been detected in the water supply, including Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5), Fluoride. 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 Oneida water?
Monitoring has detected 5 contaminants in Oneida's water supply: Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5), Fluoride. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Oneida get its drinking water?
Oneida'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. Oneida is served by one water system: ONEIDA.

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