Skip to content

Water Quality Report

Stillman Valley, IL

Ogle County · 1,200 residents · 1 water system

7

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Stillman Valley drinking water comes from groundwater wells. Based on the most recent monitoring data, 7 contaminants have been detected in the water supply, including Lead, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), and 3 others.

Contaminants detected in Stillman Valley water

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

Lead0.0015 / 0.015 mg/L
10% of EPA limit
Radium3.3 / 5 pCi/L
67% of EPA limit
Total Trihalomethanes14.6 / 80 ug/L
18% of EPA limit
10% of EPA limit
Xylenes1.1 / 10000 ug/L
0% of EPA limit
Barium0.19 / 2 mg/L
10% of EPA limit
Fluoride0.762 / 4 mg/L
19% of EPA limit
Microplastics (not routinely tested)

Other cities in Ogle County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Stillman Valley, IL tap water safe to drink?
Stillman Valley 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. 7 contaminants have been detected in the water supply, including Lead, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes. 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 Stillman Valley water?
Monitoring has detected 7 contaminants in Stillman Valley's water supply: Lead, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes, Barium, Fluoride. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Stillman Valley get its drinking water?
Stillman Valley'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. Stillman Valley is served by one water system: STILLMAN VALLEY.

Check your water quality

Enter your address for a detailed report specific to your water system.

On a private well? Search your address for nearby groundwater monitoring data.

Free water assessment in Stillman Valley.

Schedule an onsite consultation.