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Water Quality Report

Stockton, IL

Jo Daviess County · 1,728 residents · 1 water system

5

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

0

Above health guidelines

Stockton 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, Radium, Total Trihalomethanes, and 1 others.

Contaminants detected in Stockton 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
Nitrate0.14 / 10 mg/L
1% of EPA limit
Radium4.4 / 5 pCi/L
89% of EPA limit
Total Trihalomethanes5 / 80 ug/L
6% of EPA limit
Haloacetic Acids (HAA5)2 / 60 ug/L
3% of EPA limit
Microplastics (not routinely tested)

Water systems serving Stockton

STOCKTON

1,728 servedGroundwater5 contaminants
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Other cities in Jo Daviess County

Water quality reports for nearby Illinois communities.

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Frequently asked questions

Is Stockton, IL tap water safe to drink?
Stockton tap water meets EPA legal standards (Maximum Contaminant Levels) and independent health guidelines. 5 contaminants have been detected in the water supply, including Lead, Nitrate, Radium, 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 Stockton water?
Monitoring has detected 5 contaminants in Stockton's water supply: Lead, Nitrate, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5). See individual system reports for concentrations relative to EPA limits.
Where does Stockton get its drinking water?
Stockton'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. Stockton is served by one water system: STOCKTON.

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