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Water Quality Report

Forreston, IL

Ogle County · 1,338 residents · 1 water system

8

Contaminants detected

0

PFAS compounds

280

Hardness (mg/L)

1

Above legal limits

2

Above health guidelines

Forreston drinking water comes from groundwater wells. Based on the most recent monitoring data, 8 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Radium, and 4 others. Water hardness is 280 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Forreston water

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

Lead0.0012 / 0.015 mg/L
8% of EPA limit
Arsenic0.003 / 0.01 mg/L
30% of EPA limit
Copper140 / 1300 ug/L
11% of EPA limit
Radium5.1 / 5 pCi/L
102% of EPA limit
3% of EPA limit
2% of EPA limit
Barium0.14 / 2 mg/L
7% of EPA limit
Fluoride0.775 / 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 Forreston, IL tap water safe to drink?
Forreston tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 8 contaminants have been detected in the water supply, including Lead, Arsenic, 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 Forreston water?
Monitoring has detected 8 contaminants in Forreston's water supply: Lead, Arsenic, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride. 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Is Forreston water hard?
Yes. Forreston water has a hardness of 280 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 Forreston get its drinking water?
Forreston'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. Forreston is served by one water system: FORRESTON.

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