- Associated Press - Thursday, July 16, 2015

TRAVERSE CITY, Mich. (AP) - New filters at the Traverse City wastewater plant have repeatedly failed tests to measure their effectiveness during peak sewage flows.

The Traverse City Record-Eagle (http://bit.ly/1RABMJT ) reports the filter membranes cost $825,000 per set and are designed to prevent a catastrophic spill from the plant into the Boardman River. One set was installed in 2014, but hasn’t worked properly for nearly eight months.

City and township officials have expressed concerns about the filters and recommendations by engineering firm and consultant CH2M Hill to buy them. City commissioners agreed last year to spend $2.4 million to put in three more sets.

Elizabeth Hart, a project manager with CH2M Hill, says it’s believed the filter membranes failed because they were not installed properly. Technicians from the filter manufacturer are repairing them this month.

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Information from: Traverse City Record-Eagle, http://www.record-eagle.com

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