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Home My WebLink About028 Water and Sewer Package 28 — Water and Sewer City of Bozeman Staff has approved a partial waiver for this section during the pre-application process. Attached are our correspondence with the city about CILWR, service locations, and a supplementary Memo. Gran Cielo I Block 4 Minor Subdivision Preliminary Plat Application COB Service Location Correspondence Olin Peck From: Nick Pericich <NPericich@BOZEMAN.NET> Sent: Tuesday, March 18, 2025 7:36 AM To: Olin Peck Cc: Erik Ringsak Subject: RE: [EXTERNAL]Gran Cielo Blk 4 Pre app response to comments 24640 WARNING: This email originated from an external sender. Please use caution when clicking links or opening attachments. Water on lot 4 will need to be killed and moved further into the lot. The rest can stay. From: Olin Peck<opeck@wwcengineering.com> Sent: Monday, March 17, 2025 6:20 PM To: Nick Pericich <N Pericich @BOZEMAN.NET> Cc: Erik Ringsak<eringsak@wwcengineering.com> Subject: RE: [EXTERNAL]Gran Cielo Blk 4 Pre app response to comments 24640 CAUTION:This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Nick, I am happy to discuss this you whenever tomorrow morning before noon, I don't anticipate this taking too long. If you could just let us know which of these water services will need to be abandoned and which can remain that would be great. Thanks, C NOW A PART OF �ZADISON ENGIN ___ ENGINEERING OLIN PECK, E.I. I Associate Engineer 895 Technology Blvd,Ste 203 1 Bozeman,MT 59718 0:406.586.0262 1 D:406.898.3450 1 C:406.595.1432 www.wwcenciineering.com From: Nick Pericich <NPericich@BOZEMAN.NET> Sent: Monday, March 17, 2025 8:01 AM To: Olin Peck<opeck@wwcengineering.com> Subject: RE: [EXTERNAL]Gran Cielo Blk 4 Pre app response to comments 24640 WARNING: This email originated from an external sender. Please use caution when clicking links or opening attachments. Thanks Olin, > I'm not as concerned that they are in the center of the lot. I would be happy to look at this with you and discuss. My calendar is shown with pretty good availability this week below. Nick Pericich Calendar NPericich(@BOZEMAN.NET Tuesday, March 18, 2025—Friday, March 21, 2025 Time zone: (UTC-07:00) Mountain Time (US &Canada) (Adjusted for Daylight Saving Time) March 2025 Su Mo Tu We Th Fr Sa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Busy ®Tentative Free Out of Office 0 Working Elsewhere Outside of Working Hours Tue, Mar 18 Before 8:00 AM Outside of Working Hours 8:00 AM-1:30 PM Free 1:30 PM-2:30 PM Busy 2:30 PM-5:00 PM Free FJ After 5:00 PM Outside of Working Hours Wed, Mar 19 Before 8:00 AM Outside of Working Hours Fi 8:00 AM-10:00 AM Free ® 10:00 AM-12:00 PM Tentative Fi 12:00 PM-3:00 PM Free ® 3:00 PM-3:30 PM Tentative 3:30 PM-5:00 PM Free FJ After 5:00 PM Outside of Working Hours Thu, Mar 20-Fri, Mar 21 2 ❑ Before 8:00 AM Outside of Working Hours ❑ 8:00 AM—5:00 PM Free ❑ After 5:00 PM Outside of Working Hours Nick Pericich Superintendent City of Bozeman Water and Sewer Division From: City of Bozeman, MT<webadmin@bozeman.net> Sent:Tuesday, March 11, 2025 1:35 PM To: Nick Pericich <NPericich@BOZEMAN.NET> Subject: [EXTERNAL]Gran Cielo Blk 4 Pre app response to comments 24640 CAUTION:This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Message submitted from the <City Of Bozeman>website. Site Visitor Name: Olin Peck Site Visitor Email: opeck(cbwwcengineering.com Nick, This is Olin Peck with WWC Engineering. On behalf of our client, Bozeman Haus LLC,we are submitting the Preliminary Plat Application to COB for the proposed Gran Cielo I Block 4 minor subdivision.The current Block 4 lot has 5 parcels and the subsequent minor proposed will create 7 parcels within Block 4. Gran Cielo Block I is located South of Bennett Blvd, North of Cielo Way,West of S 30th Ave, and East of S 31 st Ave. In doing this, we are moving lot lines. Following COB Design standards, I am reaching out to you to see which water services need to be abandoned. As they will no longer be at the center of each lot.We have an updated map with adjusted lot lines but I am unable to include an attachment in this. Let me know what you need from me to satisfy COB requirements. Thanks, Olin Peck City of Bozeman emails are subject to the Right to Know provisions of Montana's Constitution (Art. Il, Sect. 9) and may be considered a "public record" pursuant to Title 2, Chpt. 6, Montana Code Annotated.As such,this email, its sender and receiver, and the contents may be available for public disclosure and will be retained pursuant to the City's record retention policies. Emails that contain confidential information such as information related to individual privacy may be protected from disclosure under law. City of Bozeman emails are subject to the Right to Know provisions of Montana's Constitution (Art. ll, Sect. 9) and may be considered a "public record" pursuant to Title 2, Chpt. 6, Montana Code Annotated. As such,this email, its sender and receiver, and the contents may be available for public disclosure and will be retained pursuant to the City's record retention policies. Emails that contain confidential information such as information related to individual privacy may be protected from disclosure under law. 3 COB CILWR Correspondence Olin Peck From: Griffin Nielsen <GNielsen@BOZEMAN.NET> Sent: Wednesday, March 5, 2025 2:56 PM To: Olin Peck Cc: Erik Ringsak Subject: RE: [EXTERNAL]Gran Cielo I Blk 4 Subsequent Minor Sub Attachments: ATT00001.txt;ATT00002.htm WARNING: This email originated from an external sender. Please use caution when clicking links or opening attachments. Hey Olin, Nope, at our current CILWR fee rate,the fee for the new lots will total$2,808. City of Bozeman IT Griffin Nielsen, PEA Engineering/Utilities Department DA06.582.2279 CA06.595.1598 gnielsen(ftozeman.net From: Olin Peck<opeck@wwcengineering.com> Sent: Wednesday, March 5, 2025 2:48 PM To: Griffin Nielsen <GNielsen@BOZEMAN.NET> Cc: Erik Ringsak<eringsak@wwcengineering.com> Subject: [EXTERNAL]Gran Cielo I Blk 4 Subsequent Minor Sub CAUTION:This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Griffin, We recently received comments from our Pre-Application of a 2 lot subsequent minor subdivision of Gran Cielo I Block 4. We received the following comment: 3. BMC 38.410.130—Water Adequacy: The development will need to satisfy the water adequacy code requirement prior to future subdivision approval. Compliance for multi-family, commercial, and industrial lots will be deferred until future site development and require a note to this effect listed on the plat. For all other lots or improvements (parklands, common open space, street medians, arterial and collector boulevards)which require irrigation the applicant must identify how the irrigation will be supplied. If supplied irrigation will be supplied from the City's domestic system compliance with the code will be required at final plat. If sufficient water rights can't be provided to offsets the development's annual demand then a cash-in-lieu of water rights (CILWR) payment will be required. The City assesses the CILWR fee at a rate of$6,000 per acre-foot. Please contact Griffin Nielsen with the Engineering/Utilities Department directly at gnielsen bozeman.net or (406) 582-2279 which any questions regarding the water adequacy code. The City encourages the use of groundwater wells to supply irrigation demands, which in turn will reduce the CILWR fee. A pre-determination from the DNRC demonstrating that a well groundwater well may be permitted under Montana's exempt i appropriation will need to be obtained. The applicant is encouraged to reach out to the DNRC early in the process to determine if this option is feasible. We are doing our due diligence to see if a groundwater well is possible, however we are anticipating using city water. Currently Block 4 has 5 parcels, but we are adding 2 lots for a total of 7. Attached is our preliminary layout, we will be changing the size of a few lots but this is representative of the entire site layout. Do you have any comments for us at this time? Let us know if there is anything you need from us. Thanks, M NOW A PART OF N DISON /► ENGINEERING ,^-^WWC FNGINFFRING OLIN PECK, E.I. I Associate Engineer 895 Technology Blvd,Ste 203 1 Bozeman,MT 59718 0:406.586.0262 1 D:406.898.3450 1 C:406.595.1432 www.wwcenciineerinci.com 2 NOW A PART OF MADISON /► ENGINEERING �t^wwC -� ENGINEERING 895 Technology Boulevard, Suite 203,Bozeman,MT 59718 1 406.586.0262 March 1 lth, 2025 City of Bozeman Planning Department 20 East Olive Bozeman, MT 59715 We have prepared this memo as part of our Preliminary Plat application for Gran Cielo Block 4 Minor Subdivision. This memo hopes to address the comment provided on our Gran Cielo Block 4 Minor Subdivision Pre-Application. The comment is provided below: "A.9—Water and sewer. Provide a supplemental memo from a professional engineer registered in the State of Montana demonstrating that adequate water distribution systems and capacity, and sewage collection and disposal systems and capacity, exists to serve the proposed subdivision consistent with the city's adopted design standards." We have provided the previously approved water and sewer design reports that shows the existing effluent and water design capacities. We have also provided the following information with supplementary calculations showing the existing calculations vs. proposed calculations. By comparing the previously approved reports to the proposed subdivision, this shows that we have adequate water distribution systems and capacity, as well as sewage collection and capacity. Water With the addition of two lots, there will be two additional single family detached households. Our calculations were based off assumptions provided by city of Bozeman Design and Construction Standards: "Design of new water distribution infrastructure to serve residential areas shall be based on an average daily usage of 135 gallons per capita per day at 2.17 people per dwelling unit.". The Average Daily usage of the 5-lot subdivision was calculated to be 1,465 gal/day, with a peak maximum hour usage of 183.1 gal/hour. With the addition of 2 new households, we calculated the new Average Daily use to be 2,051 gal/day, with a peak maximum hour usage of 256.3 gal/hour. The net increase would be approximately 586 gallons per day. Attached are the calculations. Sewer With the addition of two lots, there will be two additional single family detached households. Our calculations were based off assumptions provided by city of Bozeman Design and Construction Standards: "New sanitary sewer infrastructure to serve residential areas should be designed for an average daily domestic flow rate of 64.4 gallons per capita per day at 2.17 people per dwelling unit." 895 Technology Blvd Suite 203 ♦ Bozeman, MT 59718 ♦ (406) 586-0262 Project: Gran Cielo Block 4 Subdivision Page 2 of 4 The Average Daily Flow of the 5-lot subdivision was calculated to be 699 gal/day,with a peak maximum hour usage of 128.4 gal/hour. With the addition of 2 new households, we calculated the new Average Daily use to be 978 gal/day, with a peak maximum hour usage of 179.2 gal/hour. The net increase in wastewater flow would be approximately 279 gallons per day. Attached: Appendix A: Gran Cielo Residential Water and Wastewater Calculations Appendix B: Previously Accepted Gran Cielo I Water Main Report WWC/Madison Engineering IC) Erik Ringsak,PE Department Manager 895 Technology Blvd Suite 203 Bozeman,MT 59718 (406) 586-0262 Project: Gran Cielo Block 4 Subdivision Page 3 of 4 APPENDIX A Gran Cielo Residential Water and Wastewater Calculations 895 Technology Blvd Suite 203 Bozeman,MT 59718 (406) 586-0262 S NOW A PART OF MADISON -^ ENGINEERING WWC -� ENGINEERM. 895 Technology Boulevard,Suite 203,Bozeman,MT 59718 1406.586.0262 Wastewater Daily Flow Analysis Block 4 units 1-8 Previous Average Daily Flow with 5 Lots No of Units 5 Residents/unit 2.17 Gallons per Capita/day 64.4 Average Daily Flow 699 gpd Peaking Factor Calculations Zoning Units Density Total (residents/unit) Po oulation R-3 5.0 2.17 11 Peaking = Q(maX) = 18 +p 0.50 P =Population/thousands = 11/1000 =0.011 Factor Q(aw) 4 +P 0.50 Peaking Factor = 4.41 Peak Hour Sewer Demand Average Daily Flow 699 gpd 29.1 gph 0.5 gpm Peaking Factor 4.41 Peak Hour Sewer Demand 128.4 gph 2.1 gpm 17.17 cfh 0.29 cfm 0.005 cfs Future Average Daily Flow with 7 Lots No of Units 7 Residents/unit 2.17 Gallons per Capita/day 64.4 Average Daily Flow 978 gpd Peaking Factor Calculations Zoning Units Density Total residents/unit Po oulation R-3 7.0 2.17 15 Peaking = Q(max) = 18 +P 0.50 P =Population/thousands = 1511000 =0.015 Factor Q(ave) 4 +P 0.50 Peaking Factor = 4.40 Peak Hour Sewer Demand Average Daily Flow 978 gpd 40.8 gph 0.7 gpm Peaking Factor 4.40 Peak Hour Sewer Demand 179.2 gph 3.0 gpm 23.95 cfh 0.40 cfm 0.007 cfs \lM APARTOF MADISON /►y,, ENGINEERING I WWC ILNGINFFItINC 895 Technology-Boulevard, Suite 203,Bozeman,'_%TT 59718 1406.586.0262 Daily Water Usage Analysis Block 4 units 1-8 Existing Average Daily Flow with 5 Lots No of Units 5 Residents/unit 2.17 Gallons per Capita/day 135 Average Daily Flow 1,465 gpd Peaking Factor Calculations Density Total Zoning Units (residents/ Population unit R-3 5.00 2.17 11 Peaking = Q(max> = 18 + P 0.50 P=Population/thousands= 11/1000 = 0.011 Factor Q(ave) 4 + P 0.50 Peaking Factor = 4.41 Peak Hour Water Usage Average Daily Usage 1,465 gpd *Maximum hour usage is Maximum Hour Usage 6,461 gpd average daily usage multiplied Maximum Hour Usage 269.2 gph by the peaking factor Maximum Hour Usage 4.5 gpm Future Average Daily Flow with 7 Lots No of Units 7 Residents/unit 2.17 Gallons per Capita/day 135 Average Daily Flow 2,051 gpd Peaking Factor Calculations Density Total Zoning Units (residents/ Population unit R-3 7.00 2.17 15 Peaking = Q(max) = 18 + P 0.50 P=Population/thousands= 1511000 = 0.015 Factor Q(ave) 4 + P 0.50 Peaking Factor = 4.40 Peak Hour Water Usage Average Daily Usage 2,051 gpd Maximum Hour Usage 9,013 gpd *Maximum hour usage is average daily usage multiplied Maximum Hour Usage 375.6 gph by the peaking factor Maximum Hour Usage 6.3 gpm Project: Gran Cielo Block 4 Subdivision Page 4 of 4 APPENDIX B Previously Accepted Gran Cielo I Water Main Report 895 Technology Blvd Suite 203 Bozeman,MT 59718 (406) 586-0262 WATER MAIN DESIGN REPORT FOR: GRAN CIELO SUBDIVISION BOZEMAN, MT Prepared By: MADISON ENGINEERING Madison Engineering 895 Technology Drive, Suite 203 Bozeman, MT 59718 (406) 586-0262 NOVEMBER 2018 WATER MAIN DESIGN REPORT FOR: GRAN CIELO SUBDIVISION BOZEMAN, MT P1o. NJ Madison Engineering 895 Technology Blvd Ste 203 Bozeman, MT 59718 (406) 586-0262 NOVEMBER 2018 GRAN CIELO SUBDIVISION WATER MAIN DESIGN REPORT A. General This design report will give an overview of the proposed 8" and 12" water main extensions for the development of the Gran Cielo Subdivision, located at the intersection of S. 27th Ave and Graf Street in Bozeman. The 48.75-acre subdivision is zoned R-3 and R-4, and will consist of single-unit, two-unit, and multi-unit residences. The proposed improvements are anticipated to be phased, with the first phase being constructed during the spring/summer of 2018. This report includes a description of the proposed water main extensions and design parameters. Once the water main is constructed and approved, the main will become a part of the City of Bozeman(COB) system. The following references were used in the preparation of this report: a. COB Design Standards and Specifications Policy, 2004. Addendum#6 b. COB Modifications to Montana Public Works Standard Specifications(MPWSS),Addendum#3. c. WQB Circular No. 1 d. City of Bozeman Zoning Map e. Uniform Plumbing Code f. City of Bozeman Water Facility Plan Update,July 2017 B. Existing Water Supply The proposed water main extensions will be served from the existing COB water distribution system at the corner of Graf Street and S. 27th Avenue. The following information regarding pressures of the existing system was obtained from the City of Bozeman. The City conducted a test on 3/16/18 at the intersection of Lantern Lane and Enterprise Boulevard: Static Pressure: 65 psi Pitot Pressure: 56 psi Residual Pressure: 57 psi Hydrant Discharge: 1,250 gpm from 2.5" orifice Distribution Main Capacity—Fire flow at minimum residual pressure Q,=Qt[(ps—Pm)/(PS—p,)]0.54 Q,= 1,250[(65 —20)/(65—56)]0.14 Q,=2,981 gpm at 20 psi Qc= Hydrant Discharge During Test(gpm) Q,= Fire Flow at Minimum Residual Pressure(psi) Ps= Static Pressure(psi) Pm = Minimum Residual Pressure(psi) Pr = Residual Pressure(psi) Pt= Pitot Pressure(psi) Gran Cielo Subdivision Water Design Report Page 1 of 3 C. Proposed Water System The proposed water main extensions will consist of approximately 12,078 linear feet (2.3 miles) of Class 51 Ductile Iron Pipe. The proposed 12" water main will connect to the existing 12" ductile iron stub at the intersection of Graf St and S. 27`h and extend west along the proposed extension to Graf St for approximately 1,304 linear feet as well as north along S. 27th Ave for approximately 2,058 linear feet. The connection points will be isolated via new gate valves in order to provide separate connections. Approximately 8,716 linear feet of 8" water main will be looped throughout the site to provide service to the remainder of the subdivision. The water main sized according to the City of Bozeman Water Facility Plan Update. A figure of the proposed COB system by water main diameter is provided in the Appendix. The layout of the proposed water main meets the COB design criteria and will be located within the easements/Right of Way and separated from the proposed sanitary sewer main by a minimum distance of 10 feet. Fire hydrants will be installed so not to exceed 600' spacing, fulfilling the distance requirement for fire hydrant spacing, as well as assisting in flushing of the main. Gate valves will be installed at the connection point to the existing mains as well as pipe intersections, per City standards. Blow-offs have been designed for all 8" dead-end lines that will be extended in the future, and hydrants have been provided for the 12" dead-end lines in Graf Street and S. 27th Ave. D. Capacity Analysis A capacity analysis was performed on the proposed water main extension. The water main will serve all four proposed phases of the Gran Cielo Subdivision, which consists of 39.80 acres of R- 3, residential medium density, and 8.95 acres of R-4, residential high density. The water main extension has been designed to meet the maximum day demand plus fire flow during the peak hour. Based on Table 4.13.4 of the City of Bozeman Water Facility Plan, the City's design standards for an R-3 and R-4 residential lot is 6.5 and 10.4 units per gross acre, respectively. The analysis was completed based on 170 gpd per capita usage and 2.11 persons per unit. The main will be looped into the existing City of Bozeman system, however calculations were based on a dead end line to be conservative. Table 1 shows the water demand for the entire subdivision. TABLE 1 WATER DEMAND—RESIDENTIAL Units/ Density Total Per Capita Flow Flow Zoning_ Acres Acre (residents/unit) Residents (upd/resident) (zpd) R-3 39.80 6.5 2.11 546 170 92,820 R-4 8.95 10.4 2.11 197 170 33,490 Total Flow (gpd) 126,310 Total Flow (gpm) 263 Gran Cielo Subdivision Water Design Report Page 2 of 3 It is anticipated the average daily demand for the residential units will be 263 gpm, based on an 8-hour day. In addition to the average daily demand, the water main extension must account for peak periods of daily use. Peaking factors are applied to the demand and account for these peak periods in daily use. The peaking factors used are maximum daily use and peak hour and are obtained from the City of Bozeman Design Standards. Table 2 shows the peaking factors and the resultant flows from those factors when applied to the average daily demand of 263 gpm. TABLE 2 PEAKING FACTORS Flow Designation Peaking Factor Flow m Average Day Demand 1 263 Maximum Day Demand 2.3 605 Maximum Hour Demand 3 789 The required fire flow for a Type V-B structure is 1,500 gpm. With a fire flow demand of 1,500 gpm and a peak hour demand of 789 gpm, a peak hour flow of 2,289 gpm (5.10 cfs) is required. A Hazen-Williams "C" Factor of 130 was used in the pipe evaluation. The working residual water pressure shall not be less than 20 psi at any point in the water distribution system under maximum day plus fire flow. The velocity shall not exceed 15 feet per second through the main line. E. Results Flow analysis of the 8-inch D.I. pipe with a C value of 130 can provide the required 2,289 gpm with a maximum pipe velocity of 14.6 ft/s. The pressure will not drop below the minimum of 20 psi. Flow analysis of the 12-inch D.I. pipe with a C value of 130 can provide the required 2,289 gpm with a maximum pipe velocity of 6.5 ft/s. The pressure will not drop below the minimum of 20 psi. Capacity analysis calculations outlining the capacity of the proposed 8-inch and 12- inch pipes is included in the appendix of this report. F. Conclusion Based on this analysis, the proposed 8-inch and 12-inch water main extensions for the proposed Gran Cielo Subdivision provide adequate service to meet the peak hour demand and fire flows for the development. This project will require the approval of the City Engineer and MDEQ. Appendix 1. Water Main Capacity Analysis 2. Capacity Analysis Exhibit 3. City of Bozeman Proposed Water Distribution System Figure 9-2 Gran Cielo Subdivision Water Design Report Page 3 of 8" Ductile Iron Water Main Project Description Friction Method Hazen-Williams Formula Solve For Pressure at 2 Input Data Pressure 1 65.00 psi Elevation 1 4967.80 ft Elevation 2 4946.18 ft Length 1336.00 ft Roughness Coefficient 130.000 Diameter 8.00 in Discharge 2289.00 gal/min ReSUItS Pressure 2 25.32 psi Headloss 113.15 ft Energy Grade 1 5121.04 ft Energy Grade 2 5007.90 ft Hydraulic Grade 1 5117.73 ft Hydraulic Grade 2 5004.58 ft Flow Area 0.35 ft2 Wetted Perimeter 2.09 ft Velocity 14.61 ft/s Velocity Head 3.32 ft Friction Slope 0.08469 ft/ft Bentley Systems,Inc. Haestad Methods SoliftbMIOpfftewMaster V81(SELECTseries 1) [08.11.01.03] 11/20/2018 9:15:50 AM 27 Siemons Company Drive Suite 200 W Watertown,CT 06795 USA +1-203-755-1666 Page 1 of 1 12" Ductile Iron Water Main Project Description Friction Method Hazen-Williams Formula Solve For Pressure at 2 Input Data Pressure 1 65.00 psi Elevation 1 4969.92 ft Elevation 2 4939.60 ft Length 2037.00 ft Roughness Coefficient 130.000 Diameter 12.00 in Discharge 2289.00 gal/min Results Pressure 2 67.76 psi Headloss 23.94 ft Energy Grade 1 5120.50 ft Energy Grade 2 5096.56 ft Hydraulic Grade 1 5119.85 ft Hydraulic Grade 2 5095.90 ft Flow Area 0.79 ft2 Wetted Perimeter 3.14 ft Velocity 6.49 fUs Velocity Head 0.66 ft Friction Slope 0.01175 ft/ft Bentley Systems,Inc. Haestad Methods Sol @®rtlOpFtewMaster V81(SELECTseries 1) [08.11.01.03] 11/2012018 9:23:43 AM 27 Siemons Company Drive Suite 200 W Watertown,CT 06795 USA +1-203-755-1666 Page 1 of 1 —.APEX II < u i � lu Z D IO II D U)> I ox II j Iz� f _ s aD �D � Zm rn mo o01 ➢D I III /�� II IJI II kk I II ,oD� rn<> 1 —LnD ocv;z I I N� 1l III gEuNETT B D_ w �II III — I z� _ I III II II II II 7, .I II� III III III III III _ I I z r II II III III III III I II I II II I II II II I JJ1 III III III ® III III I I I X 11 II II I II III II - - 1 II II III DI III III a {1 II! 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Olin Peck From: Griffin Nielsen <GNielsen@BOZEMAN.NET> Sent: Wednesday, March 5, 2025 2:56 PM To: Olin Peck Cc: Erik Ringsak Subject: RE: [EXTERNAL]Gran Cielo I Blk 4 Subsequent Minor Sub Attachments: ATT00001.txt;ATT00002.htm WARNING: This email originated from an external sender. Please use caution when clicking links or opening attachments. Hey Olin, Nope, at our current CILWR fee rate,the fee for the new lots will total$2,808. City of Bozeman IT Griffin Nielsen, PEA Engineering/Utilities Department DA06.582.2279 CA06.595.1598 gnielsen(ftozeman.net From: Olin Peck<opeck@wwcengineering.com> Sent: Wednesday, March 5, 2025 2:48 PM To: Griffin Nielsen <GNielsen@BOZEMAN.NET> Cc: Erik Ringsak<eringsak@wwcengineering.com> Subject: [EXTERNAL]Gran Cielo I Blk 4 Subsequent Minor Sub CAUTION:This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Griffin, We recently received comments from our Pre-Application of a 2 lot subsequent minor subdivision of Gran Cielo I Block 4. We received the following comment: 3. BMC 38.410.130—Water Adequacy: The development will need to satisfy the water adequacy code requirement prior to future subdivision approval. Compliance for multi-family, commercial, and industrial lots will be deferred until future site development and require a note to this effect listed on the plat. For all other lots or improvements (parklands, common open space, street medians, arterial and collector boulevards)which require irrigation the applicant must identify how the irrigation will be supplied. If supplied irrigation will be supplied from the City's domestic system compliance with the code will be required at final plat. If sufficient water rights can't be provided to offsets the development's annual demand then a cash-in-lieu of water rights (CILWR) payment will be required. The City assesses the CILWR fee at a rate of$6,000 per acre-foot. Please contact Griffin Nielsen with the Engineering/Utilities Department directly at gnielsen bozeman.net or (406) 582-2279 which any questions regarding the water adequacy code. The City encourages the use of groundwater wells to supply irrigation demands, which in turn will reduce the CILWR fee. A pre-determination from the DNRC demonstrating that a well groundwater well may be permitted under Montana's exempt i appropriation will need to be obtained. The applicant is encouraged to reach out to the DNRC early in the process to determine if this option is feasible. We are doing our due diligence to see if a groundwater well is possible, however we are anticipating using city water. Currently Block 4 has 5 parcels, but we are adding 2 lots for a total of 7. Attached is our preliminary layout, we will be changing the size of a few lots but this is representative of the entire site layout. Do you have any comments for us at this time? Let us know if there is anything you need from us. Thanks, M NOW A PART OF N DISON /► ENGINEERING ,^-^WWC FNGINFFRING OLIN PECK, E.I. I Associate Engineer 895 Technology Blvd,Ste 203 1 Bozeman,MT 59718 0:406.586.0262 1 D:406.898.3450 1 C:406.595.1432 www.wwcenciineerinci.com 2