HomeMy WebLinkAbout012 Sanitary Sewer calculation C � H
Engineering and Surveying Inc.
1091 Stanaridga Orivo•Bozoman,MT 59718
Phone(406)5B7-1115•Fax(406)587-9768
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Bozeman Design Center Site Plan - Lot 1, Block 2 Ferguson Farm Subdivision
Sanitary Sewer Flow Calculations
Average daily flow calculation
*Wastewater Wastewater
Land Use Category Gross area(sf) flow(gpd/sf) flow(gpd)
Retail (and warehouse) 7630 0.013 99
Office 30299 0.029 879
Avg. Daily Flow Rate 1 978
*This figure is based on analysis performed by C&H Engineering for the Ferguson Farm II PUD Subdivision
project. It is based on actual water meter data of businesses in Bozeman for winter months of 2018-2019.
Peaking Factor Calculation
population (entire subdivision build-out)* 751 persons
peaking factor* 3.88
Average Daily Flow Rate 978 gal/day
Peak Wastewater Flow Rate 3794 gal/day
Peak Wastewater Flow Rate 2.6 gal/min
Peak Wastewater Flow Rate 0.0059 cfs
*Peaking factor and entire subdivision population obtained from C&H Engineering sewer design report
for Ferguson Farm Subdivision(2013).
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