Environment

Question Corner | December 2022

Q. What will the City of Ann Arbor do if the “Gelman Plume” contaminates Barton Pond? Is there an alternative source of water?  A.  This fiscal year the city will install two “sentinel wells” to watch for the plume approaching...

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Gelman Plume a Superfund Site?

Q. Why do local governments want the EPA to declare the Gelman dioxane plume a Superfund site? A. From the 1960s into the 1980s, Gelman Sciences discharged manufacturing wash water into ponds on its Wagner Rd. property. Bacteria...

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Gelman Plume Moves East?

Q. Why does the Gelman Plume move steadily eastward? I would expect a liquid to disperse in all directions.A. Ann Arbor water treatment plant manager Brian Steglitz explains: “Just like a river, groundwater has a gradient...

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