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Home My WebLink AboutAmbientAirCILWREstimateLetter_06242021 1091 Stoneridge Drive • Bozeman, Montana • Phone (406) 587-1115 • Fax (406) 587-9768 www.chengineers.com • E-Mail: info@chengineers.com Civil/Structural Engineering and Surveying June 24, 2021 Griffin Nielsen City of Bozeman Engineering Department 20 E. Olive Street Bozeman, MT 59718 Re: Ambient Air Solutions, Lot 7, Block 2, Nelson Meadows Subdivision (COB - #21063; C&H #200217) Subject: Cash in Lieu of Water Rights (CILWR) – Water Usage Estimate Dear Mr. Nielsen, The purpose of this letter is to respond to your email from March 25, 2021 in which you requested C&H Engineering to perform an analysis of water usage of similar businesses to Ambient Air Solutions in order to determine a fair estimate of water usage to be used for their CILWR determination. The handful of similar businesses around Bozeman are not located in Bozeman and therefore difficult to obtain their water usage information. Mountain Sheet Metal is on Lynx Lane off Huffine. Elite Air Systems is on Nelson Road. Air Controls is in Four Corners. None of these businesses are located within City Limits of Bozeman. As an alternate solution we propose using C&H Engineering and The Daines Office Building. These two office buildings will have similar water consumption to the future Ambient Air Solutions. Ambient Air Solutions does not have any heavy water consumption activities planned. The building consists of standard office amenities including break room with dishwasher, bathrooms, etc. Therefore, in our estimation it is reasonable to assume their water consumption is at a similar level to C&H Engineering and the Daines Office Building. Water meter data from November 2018 through March 2019 was obtained for the aforementioned businesses. These dates were chosen to avoid complicating the analysis with the COVID-19 impact on businesses which started in March 2020 and to ensure that summer irrigation did not skew the data. See attached calculations and raw data for water consumption obtained from the City of Bozeman Utility Billing Department for each of the businesses used in the study. The data for each building were averaged. This yielded an average daily flow rate of 0.029 gallons per gross square foot. This average flow rate per unit gross area was applied to the gross area of the proposed Ambient Air Solutions building which is 10,332 square feet. The average daily flow rate was determined to be 299.6 gallons per day. See included calculation which shows that the Ambient Air Solutions site plan owes $3,651.86 as payment of CILWR. Civil/Structural Engineering and Surveying If you require any further information, please give me a call at (406) 404-7520. Sincerely, Tim Staub, P.E. Enclosures: Water usage calculations for C&H Engineering and Daines Office Building Raw water meter data for C&H Engineering and Daines Office Building CILWR calculation Building Use Type Gross Area (sf) Office (Ambient Air)10,332 0.029 gpd/sf 299.6 gpd *Water usage rate is determined from water usage data of similar use buildings in Bozeman. See below Water usage data summary Use type Building Address Area (sf)Avg. gal/month gal/day gal/day/sf Avg. gpd/sf Office C&H Engineering 1091 Stoneridge Dr.5,500 6,343 209 0.038 Office Daines Building 895 Technology Blvd.10,000 6,097 201 0.020 0.029 WATER USAGE ANALYSIS Water usage per day*Water Usage Rate per sf PREPARED 12/18/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1 PROGRAM UT475L CITY OF BOZEMAN CUSTOMER: 28635 STONERIDGE PROPERTIES LLC1091 STONERIDGE DR BOZEMAN MT 59718 LOCATION: 111790 1091 STONERIDGE DR CYCLE/ROUTE: 01-22 STATUS: A WATER METER NUMBER: 81499383 METER SIZE: 058 READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND ----------------------------------------------------------------------------------------------------------- 3/06/19 REG 28 3/19 3/26/19HCF 57695.50 6.15 .00 2/06/19 REG 33 2/19 2/21/19HCF 57634.00 6.60 .00 1/04/19 REG 30 1/19 1/25/19HCF 57568.00 5.00 .00 12/05/18 REG 33 12/18 12/28/18HCF 57518.00 11.55 .00 11/02/18 REG 28 11/18 11/27/18HCF 57402.50 13.10 .00 TOTALS: 152 42.40 .00 AVERAGE DAILY USAGE:.27 .00 CONSUMPTION PARAMETERS FOR WATER EXCEPTION REPORT FLAG . . . . : CONSUMPTION ESTIMATE . . . . :.00 DEMAND CONSUMPTION ESTIMATE . :.00 AVERAGE CONSUMPTION . . . . . :1.25 AVERAGE DEMAND CONSUMPTION . :.00 TOTAL CONSUMPTION . . . . . . :1179.35 TOTAL DEMAND CONSUMPTION . . :.00 TOTAL READING DAYS . . . . . :945 C&H ENGINEERING PREPARED 1/12/21 ACCOUNT CONSUMPTION HISTORY PAGE: 1 PROGRAM UT475L CITY OF BOZEMAN CUSTOMER: 7507 CLAIR W & SHARON DAINESSOUTHWOOD BLDG #7895 TECHNOLOGY BLVD STE 101BOZEMAN MT 59718 LOCATION: 45080 895 TECHNOLOGY BLVD CYCLE/ROUTE: 01-15 STATUS: A WATER METER NUMBER: 84506359 METER SIZE: 058 READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND ----------------------------------------------------------------------------------------------------------- 3/05/19 REG 32 3/19 3/26/19HCF 21360.50 8.50 .00 2/01/19 REG 29 2/19 2/26/19HCF 21275.50 8.30 .00 1/03/19 REG 30 1/19 1/25/19HCF 21192.50 7.35 .00 12/04/18 REG 32 12/18 12/28/18HCF 21119.00 8.85 .00 11/02/18 REG 29 11/18 11/27/18HCF 21030.50 7.75 .00 TOTALS: 152 40.75 .00 AVERAGE DAILY USAGE:.26 .00 CONSUMPTION PARAMETERS FOR WATER EXCEPTION REPORT FLAG . . . . : CONSUMPTION ESTIMATE . . . . :.00 DEMAND CONSUMPTION ESTIMATE . :.00 AVERAGE CONSUMPTION . . . . . :.25 AVERAGE DEMAND CONSUMPTION . :.00 TOTAL CONSUMPTION . . . . . . :247.95 TOTAL DEMAND CONSUMPTION . . :.00 TOTAL READING DAYS . . . . . :973 THE DAINES BUILDING DATE:06/23/2021 Project Name: Applicant Name: Applicant Address: Cash-In-Lieu Value1 =$6,000 per Acre-Foot Total annual acre-feet 0.27 Total 0.27 Total annual acre-feet 0.34 Total 0.34 1 Cash-in-lieu value established by City Commission Resolution No. 4095 2 From C&H Engineering analysis of simliar businesses in Bozeman Commercial CIL Fee 299.6 Water usage per day (gallons/day)2 CIL Grand Total = Ambient Air Solutions Garret Gillispie Lot 7, Block 2 Nelson Meadows Subdivision Bozeman, MT 59718 Irrigation Cash-In-Lieu Details Legal Description: Lot 7, Block 2 Nelson Meadows $2,013.58 $3,651.86 Legal Description: Lot 7, Block 2 Nelson Meadows Ambient Air CASH-IN-LIEU OF WATER RIGHTS For Commercial Development Commercial Cash-In-Lieu Details Total annual gallons (see landscape plans) Ambient Air Irrigation CIL Fee $1,638.28 88972