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City of Ann Arbor SSWWEP - Citizens Advisory Committee Coordination — City of Ann Arbor

2.11 -C- Do most sanitary sewers work by gravity?

Posted by Lori Byron on 20 Dec, 2013
Category: Category 2 - about potential recommendations

Frank Burdick’s Log Number: N/A
Submitted by: August CAC meeting
Category (1,2,3): 2
Status: Closed
Estimated date to address: N/A

Q. Do most sanitary sewers work by gravity?

A. Gravity sewers serve nearly all of the houses and businesses in Ann Arbor. Most sanitary sewers work by gravity, and the sanitary sewer pipes usually follow existing land contours to reduce pumping. Sometimes, we have to pump sewage from a low area or over a hill via pump station. Because of the topography of Ann Arbor, the City has very few pump stations. 

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