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City taking on sewer overflows: Efforts ongoing as costly stormwater fix looms

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Posted on October 5, 2017 |
By Andy Kirkaldy



n City taking on sewer circle chart-1.jpg
THIS CHART IS a printout from the metering system that measures combined sewer overflows at the MacDonough Drive pump station in Vergennes. At the top can be seen what happened between 5:30 p.m. and midnight on Aug. 12, when persistent thunderstorms caused as stormwater surge that the pump station could bot handle, resulting in about 112,000 gallons of untreated wastewater flowing into Otter Creek. The rest of the chart measures the more typical flow into the station. Photo courtesy Rick Chaput

Editor’s note: This is the second of a two-part series. Part 1 described how stormwater infiltration from a variety of sources into the city’s wastewater collection system can outstrip the ability of a pump station on Macdonough Drive to handle sudden surges in flow.

By ANDY KIRKALDY

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