Rockford

Rockford, IL
IL2010300
People Served
147.1K
Water Source
Groundwater
Counties
Winnebago County
Data from
2023
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Contaminants Exceeding Limits

The following contaminants have exceeded the guideline limits at least once in the last year.

  • CO

    Combined Radium (-226 & -228)

    Radium-226 and -228 are radioactive elements that enter water from eroding rock and soil. These naturally occurring contaminants increase the risk of cancer.

    6.000 pci/l
    EPA limit 5.000 pci/l
  • MA

    Manganese

    Manganese is a metal found in rocks and soil. It enters water through erosion and industrial processes. While essential in small amounts, excess can harm the nervous system.

    87.000 ppb
    EPA limit 50.000 ppb

Other Contaminants Detected

The following contaminants have been detected, but not exceeded the guideline limits in the last year.

1,1,1-Trichloroethane

Avg:0.740 ppb
Limit:200.000 ppb

Arsenic

Avg:2.200 ppb
Limit:10.000 ppb

Barium

Avg:0.380 ppm
Limit:2.000 ppm

Cis-1,2-Dichloroethylene

Avg:17.000 ppb
Limit:70.000 ppb

Combined Chlorine

Avg:1.000 ppm
Limit:-

Copper

Avg:1.150 ppm
Limit:1.300 ppm
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