Update on Alum Application to Arboretum’s Marion Dunn Pond


As you recall this blog has reported on the proposal from City of Madison Engineering Division to add aluminum sulfate (alum) to the Arboretum’s Marion Dunn storm water pond on Monroe Street.   Now, we have learned that the City has purchased all the “product and mechanics” necessary for the project.  This according to Alder Zach Madden in Forward Lookout,  a Dane County “news and opinion website with multiple authors.”

The Arboretum apparently remains publicly silent on the project.

This issue of Forward Lookout, called Permissible Pollution,  also reports on mercury levels in a southside detention pond and construction site erosion that ended up in Lake Monona and that originated from the Ghidorzi construction site for the Wingra Clinic on Fish Hatchery Road.

As Tim Troester of City of Madison Engineering Division told the Committee on the Environment, the soil erosion from the Ghidorzi site was perfectly legal and within guidelines that permit 7.5 tons of soil erosion per acre, per site, per year.

Alder Madden poses the question:  “In a city full of environmentalists, why are we failing at such basic things?”

Wow. Depressing eh. In this city full of environmentalist, why are we failing as such basic things? – See more at: http://www.forwardlookout.com/2013/06/zach-madden-permissible-pollution/18880#sthash.Zh24E7zo.dpuf
that came from the Ghidorzi construction site of Wingra clinic. – See more at: http://www.forwardlookout.com/2013/06/zach-madden-permissible-pollution/18880#sthash.Zh24E7zo.dpuf
that came from the Ghidorzi construction site of Wingra clinic. – See more at: http://www.forwardlookout.com/2013/06/zach-madden-permissible-pollution/18880#sthash.Zh24E7zo.dpuf
product and mechanics have been purchased for the alum treatment to the storm water pond at the end of Glenway. – See more at: http://www.forwardlookout.com/2013/06/zach-madden-permissible-pollution/18880#sthash.Zh24E7zo.dpuf
product and mechanics have been purchased for the alum treatment to the storm water pond at the end of Glenway. – See more at: http://www.forwardlookout.com/2013/06/zach-madden-permissible-pollution/18880#sthash.Zh24E7zo.dpuf
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About Steve Glass

The blogger is a restoration ecologist practicing and writing in the Midwestern United States.
This entry was posted in Alum application trial, Lake Wingra Watershed management planning, Marion Dunn Pond, Soil destruction, Soil erosion, Soil loss, Storm water and tagged , , , , , , , . Bookmark the permalink.

2 Responses to Update on Alum Application to Arboretum’s Marion Dunn Pond

  1. Pingback: Madison Engineering Division Considering Additional Sites for Aluminum Sulfate Application | WingraSprings

  2. Pingback: Study Finds Aluminum Sulfate (Alum) Applications to Control Eutrophication of Lakes May Have Unintended and Untargeted Effects on Ecological Processes | WingraSprings

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