HomeMy WebLinkAbout014 North Wallace Residences WATER DEMAND MEMO
MEMO
32 Discovery Drive ♦ Bozeman, MT 59718 ♦ (406) 582-0221 ♦ Fax (406) 582-5770
Project Name: North Wallace Residences
Project Number: AESI 22-058
Date and Time: August 18, 2023
Re: Domestic Water Demand
MEMO DETAILS:
The purpose of this memo is to outline the estimated maximum and average daily domestic water demand for the residential site development of Babcock and Davis Addition to Bozeman Subdivision, W2 Lot 3 (428 North Wallace). The demand is estimated based on guidelines provided in the
Montana Department of Environmental Quality (MDEQ) Circular 4 and the City of Bozeman Design Standards and Specifications. Two new 1”-inch service lines will be installed to serve the 4-bedrrom residence/ADU and the duplex from the existing 10” water main located on North Wallace Ave.
A maximum day to average day ratio of 2.3:1 for an average daily flow of 170-gallons per day per person was used as outlined in section V.A.4 of the COB Design Standards and Specifications. Please see the attached calculations for additional information. A summary is provided below. The estimated demands do not consider irrigation.
• Number of Units = 4
• Average daily demand = 4 units x 2.11 people x 170 gpd = 1,434 (1.00 gpm)
• Maximum daily demand = 3,300 gpd (2.29 gpm) Please contact Emma Raeside and/or Rory Romey at 406-582-0221 or eraeside@alliedengineering.com; rromey@alliedengineering.com with any questions or if additional information is required.