HomeMy WebLinkAboutWS2 - Water and Sewer Service Standards Departure Request
714 Stoneridge Drive, Suite 2 Bozeman, MT 59718
Page 1
February 13, 2025
City of Bozeman
Department of Community Development
ATTN: Cody Flammond, PE
20 East Olive Street
Bozeman, MT 59715
Re: Valley Glass and Windows Water and Sewer Service Standards Departure
(Planning File Number:24-511)
Dear Cody Flammond,
The intent of this letter is to request a departure from the Bozeman Municipal Code, Section
38.4010.070.B.2 requiring that the length of service lines from the main to the structure not exceed 150
feet in length, unless approved by the city. The departure request is in reference to the Valley Glass and
Windows Site Plan – PN #24-511, a planning department site plan application to add a proposed to
11,800 Square Foot building to an existing commercially developed lot. The lot is legally described as Lot
3 of Tract 6 Plus Vacated Single Tree Court, Gardner Simmental Plaza Subdivision, Section 35, Township
1 South, Range 5 East of P.M.M. The lot is located within the City of Bozeman and will be serviced by the
city with water and sewer services.
The proposed 1” water service and 4” sanitary sewer services are located in the northwest
corner of the lot and will run through the proposed parking lot expansion and in to the proposed
commercial building in the northeast corner. During the site plan review process, the site is being
brought to current stormwater and site development standards. Additionally, the site located in an area
of relatively high groundwater. As a result, there are numerous proposed underground retention
systems. The proposed service is proposed >10 feet off of the proposed retention systems located in the
northwest corner of the site. As a result of meeting the necessary utility separations, the services exceed
the 150-foot maximum length requirement. The water service and sewer service will be 185’ and 174’
respectively. A cleanout is proposed approximately halfway through the sewer service, associated with a
45-degree bend. Based on the attached fixture counts and adjacent hydrant flow tests, the water service
should be adequate to provide pressure and flow in accordance with UPC and the City of Bozeman DSSP.
Please feel free to contact Alpine Surveying and Engineering with any questions at (406) 586-5599, or by
email at ecote@alpinesurveying.net and dkirsch@alpinesurveying.net.
Sincerely,
Drew Kirsch, PE
Alpine Surveying and Engineering, Inc.
CITY OF BOZEMAN
Fire Flow Request Form
PHONE (406) 582-3200 FAX (406) 582-3201
Date November 22, 2024
Location Rest Stop (3204 N 19th Ave)
Pressure Zone HGL 4975 (NW1)
GIS Hydrant ID# 1170
Adjacent Main Size 12-inch DI
Model Scenario Maximum Day Demand, Steady State, Fire Flow
Reference 2017 Water Facility Plan Update1
Hydrant Curves An Excel Spreadsheet with hydrant curves has been provided for the
requested location
Requested Location via the Bozeman Infrastructure Viewer2
If you have questions or need further information feel free to email.
Data Disclaimer: Water distribution information is calculated using hydraulic modeling software and is subject to
variation. Actual field conditions may vary. This information is provided to the requestor for evaluation purposes
only, without warranty of any kind, including, but not limited to any expressed or implied warranty arising by
contract, stature, or law. In no event regardless of cause, shall the City be liable for any direct, indirect, special,
punitive or consequential damages of any kind whether such damages arise under contract, tort, strict liability or
inequity.
HOME OF MONTANA STATE UNIVERSITY
GATEWAY TO YELLOWSTONE PARK
1 https://www.bozeman.net/home/showpublisheddocument/4977/636420174896170000
2 https://gisweb.bozeman.net/Html5Viewer/?viewer=infrastructure
2.5
X
X
¾” 20 19 17 14 11
¾” 39 36 33 28 23
1”
1”
39 39 36 30 25
¾” 1¼” 39 39 39 39 39
1” 78 76 67 52 44
1½”
1¼”
78 78 78 66 52
1” 1½”/2” 85 85 85 85 85
1½” 151 151 151 128 105
2” 151 151 151 150 117
1½” 370 340 318 272 240
2”
1½”
370 370 370 368 318
1”
¾”
2”
2”
1½”
1¼”
UPC Table 610.3 Standard Design Water Supply Fixture Units
Fixture Units # of Fixtures Total
4.0 X = ________
10.0 X = ________
2.0 X = ________
4.0 X = ________
1.5 X = ________
2.5 X = ________
1.0 X = ________
0.5 X = ________
3.0 X = ________
1.0 X = ________
1.5 X = ________
1.5 X = ________
Appliances and Fixtures
Bathtub/Combination Tub/Shower
Soaker Tub
Shower (per head)
Clothes washer
Dishwasher
Hose Bibb
Additional Hose Bibb (each)
Drinking Fountain
Service / Mop Basin
Lavatory Sink
Kitchen Sink
Laundry Sink
Water closet (1.6 GPF) 2.5 X = ________
Water closet (1.6 GPF – Flushometer tank) X = ________
= ________ Water closet (flushometer valve)
Urinal (flushometer valve) = ________
Table Values
Table Values
________
________
________
________
________
________
________
________
________
________
________
________
________
________
________
_____
Total Number of Fixture Units ________
First identify the length in feet to the farthest fixture and applicable service. Then, cross reference the number of
fixtures, based on the Total Number of Fixture Units above to determine the appropriate Meter & Service, and
Supply & Branch size.
UPC Table 610.4 Maximum Allowable Length in feet - 46-60 PSI
Meter & Supply & 150’ 200’
Service Branches
If count is over 370 fixtures, water demand does not meet table 610.4 submitted by a registered Montana
mechanical engineers design, signed and stamped.
March 2023
2021 UPC (Comm/Res)
City of Bozeman Water Service Calculation Worksheet
Project Address: ___________________________________ Property Owner: ______________________________
General Contractor: _______________________________________________________________________________
Permit Number: _______________ Proposed Water Meter Size: _______________
*As a substitute for this form you can utilize Appendix M in Uniform Plumbing Code. The calculator results, as well as all of
the fixtures that will be used on this project will need to be submitted in lieu of this form.
Sec . 610 .1
Sec. 6 10.1
100’ 80’ 60’
*Appendix M requires the property to be identified as a water conservation Building.
*w/ Flush Tank
(conservatively)