HomeMy WebLinkAbout019 - Wastewater Memo
cushingterrell.com
March 18, 2026
Development Review Engineer
City of Bozeman
20 E. Olive Street
Bozeman, MT 59715
RE: Ursus Major Wastewater Memo
To whom it may concern:
The purpose of this memo is to address wastewater design capacity for the proposed development.
Referencing the “Nelson Meadows Subdivision Water and Wastewater Design Report” dated February 2018
by Morrison Maierle the total anticipated wastewater generated for the subdivision is based on an estimated
960 gallons per acre per day. See table below from this report:
The Ursus Major parcel is Lot 2A, Block 5, 4.86 acres which results in an estimated sewer capacity reserved for
this parcel of 4,665 gpd and 12.59 gpm peak flow when using the same peak hour factor of 3.87.
Utilizing guidance from Montana DEQ Circular 4, a typical flow rate of 13 gpd per employee can be used to
estimate wastewater flow. With 50 employees, the daily peak demand for domestic wastewater use is 650
gpd. Based on the design of the facility, the process wastewater flow is 3,750 gpd, for a total of 4,400 gpd.
Using the same peak hour factor of 3.87, the estimated peak hour flow is 12 gpm. Therefore, the Nelson
Meadows sewer system and pump station appears to have been designed to adequately serve the Ursus
Major development.
Sincerely,
Adam Schlegel, PE
Civil Engineer