Wolverine Worldwide is now testing about 175 wells in Kent County's Algoma Township for a chemical once used to waterproof shoes.

The new zone covers the area of Wolven Avenue between 10 Mile and 11 Mile roads west of Rockford.

The newest round of tests is being conducted because the Michigan Department of Environmental Quality received reports that area farmers applied liquid tannery by-products to their fields in the 1950s and 1960s.

"According to experts, soil that has been amended with liquid tannery by-products poses no health impacts to humans or animals, including vegetation that may have been grown in this type of soil," Wolverine posted in an update.

Related: State expands probe of groundwater contamination linked to Wolverine Worldwide

Of the 175 wells to be tested, 150 are in the Wellington Ridge housing development located south of 11 Mile Road and west of Wolven Avenue NE, Algoma Township Supervisor Kevin Green said.

“The DEQ and Wolverine are just showing an abundance of caution by testing many of the houses in Wellington Ridge,’’ Green said. “There was a test that was close by that came up over the 70 parts per trillion.’’

Wolverine started notifying homeowners on Monday and tests will begin later this week. In the meantime, area homeowners are being provided bottled water. It should take about four weeks for the results to be available.

This new testing site is in addition to the more than 600 homes that are being tested in Plainfield Township.

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