City of Ann Arbor SSWWEP - Citizens Advisory Committee Coordination - 1.43 -C- We want to make sure that what appears to be a footing drain success story also includes mention of what else could be causing those reductions

1.43 -C- We want to make sure that what appears to be a footing drain success story also includes mention of what else could be causing those reductions

Posted by Lori Byron on 20 Dec, 2013
Category: Category 1 - SSWWEP Questions and Presentations

Frank Burdick’s Log Number: N/A

Submitted by: CAC October meeting

Category (1,2,3): 1

Status: Closed

Estimated date to address: N/A

Q. We want to make sure that what appears to be a footing drain success story also includes mention of what else could be causing those reductions.

A. Variations from different rainfall amounts, rainfall patterns and antecedent moisture conditions can “mask” the underlying changes in flows due to FDD. A scientific “control” for these items was done with the FDD flow evaluation using three independent techniques that include scatter plots, meter correlations to a control, and continuous hydrologic modeling. Results were presented at the December 12, 2013 CAC meeting.

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

1.43 -C- We want to make sure that what appears to be a footing drain success story also includes mention of what else could be causing those reductions