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.
1.41 What
kind of impact does personal use have on storms and flows? (Showers, laundry,
etc.) Could it be skewing the data?
A. The chart (
http://www.allianceforwaterefficiency.org/residential-end-uses-of-water-study-1999.aspx)
shows typical water demand in a
household. Note that this figure tabulates household water use, and it is
reasonable to assume that this water use would be discharged to the sanitary
sewer, except the “outdoor” component.
The “outdoor” use component in the table below is for lawn sprinkling
and other irrigation, and this water use generally does not make its way to the
sanitary sewer.
For reference, the peak flow rates from the year 2000 metering
(pre-FDD conditions) ranged from 1,900 to 7,600 gallon per capital per day for
the five priority districts. Other studies and FDD programs have estimated that
the peak flow generation of a footing drain from a rain event is in the range
of 3 – 5 gallons per minute per footing drain, which equates to approximately
1,950 to 3,300 gallons per capita per day.
Source: Residential End Uses of Water, AWWA
Research Foundation, 1999
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