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

2.9 -C- How old are the pipes in each of these neighborhoods and could infiltration via cracks, roots, etc. be causing stormwater to enter the sanitary sewer system?

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

2.9 - CAC August meeting - How old are the pipes in each of these neighborhoods and could infiltration via cracks, roots, etc. be causing stormwater to enter the sanitary sewer system? (Meaning that footing drains do not comprise as much of the flow as estimated.)

A.   We are preparing plots for the next CAC meeting that includes flow components, e.g. inflow, infiltration, base flow, etc., which will help assess how much stormwater is coming from other sources, and what these sources look like in the flow data. We will have this information at the next CAC meeting. The decade of installation for the sanitary pipes in the 5 study areas are shown below

Orchard Hills & Bromley – 1960’s
Dartmoor – 1950’s to 2000’s
Morehead – 1960’s to 1990’s
Glen Leven – 1950’s to 1980’s

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