- Associated Press - Wednesday, August 3, 2016

PORTLAND, Maine (AP) - Water officials say equipment malfunctions and a 36-year-old aeration system are hindering efforts to eliminate odors at a Portland wastewater treatment plant amid a rising number of odor complaints.

The Portland Press Herald reports (http://bit.ly/2aPiEt0 ) the water district received 33 online complaints last month about foul smells coming from the East End Wastewater Treatment Facility. There were five such complaints in June.

Officials say they’ve had trouble infusing enough oxygen into the wastewater to eliminate odors.

Odor complaints also typically increase during the warmer and more humid months.

The plant, which is near a dense residential neighborhood, is undergoing an $11.4 million upgrade. The project has been going on for about a year and is expected to be finished next year.

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Information from: Portland Press Herald, http://www.pressherald.com

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