Appendix A Water Demand and Fire Flow Calculations

Transcription

1 Appendix A Water Demand and Fire Flow Calculations

2 :1251 Shillington Ave Estimated Water Demand Water demand may be estimated based on the City of Ottawa Watermain Distribution Guidelines, July Estimated Population: 3 Townhouse Apartment units x 2.7 p / unit = 9p Average Daily Demand: 350L L L Q avg = 9 p = 3,150 = p d d s Maximum Daily Demand: L L 1d L Qmax_ daily = 3, = 7,875 = d d 86,400s s Peak Hourly: L 1d Q hourly = 7, d 86,400s peak _ = Fire Flow Demands must be provided by mechanical consultants. For boundary conditions requests, a preliminary fire flow demand of 15,000 L/min can be used. L s

3 FUS Fire Flow Calculations Calculations Based on 1999 Publication "Water Supply for Public Fire Protection" by Fire Underwriters' Survey (FUS) Stantec Project #: Project Name: 1251 Shillington Ave Fire Flow Calculation #: 1 Date: August 18, 2011 Building Type/Description/Name: ordinary construction with fire walls Data input by: Amanda Lynch, B.Eng. Table A: Fire Underwriters Survey Determination of Required Fire Flow - Long Method Step Task Term Options 1 2 Multiplier Associated with Option Choose: Value Used Coefficient related Choose Frame Used Wood Frame 1.5 to type of for Construction of Ordinary construction 1 construction (C) Unit Non-combustible construction 0.8 Ordinary construction 1 m Fire resistive construction (< 2 hrs) 0.7 Fire resistive construction (> 2 hrs) 0.6 Single Family 1 Type of Housing Townhouse - indicate # of units 3 Single Family 1 Units Other (Comm, Ind, etc.) # of Storeys Number of Floors/ Storeys in the Unit (do not include basement): 2 2 Storeys Choose Type of Housing (if TH, Enter Number of Units Per TH Block) Enter Ground Floor Area of One Unit Obtain Required Fire Flow without Reductions Apply Factors Affecting Burning Choose Combustibility of Building Contents Measurement Units Occupancy content hazard reduction or surcharge Choose Reduction Sprinkler Due to Presence of reduction Sprinklers Choose Separation Distance Between Units Obtain Required Fire Flow, Duration & Volume Exposure Distance Between Units Square Feet (ft 2 ) Square Metres (m 2 ) 1 Hectares (ha) 10,000 Non-combustible Limited combustible Combustible 0 Free burning 0.15 Rapid burning 0.25 Complete Automatic Sprinkler Protection -0.3 None 0 North Side Fire Wall 0.1 East Side 10.1 to 20.0m 0.15 South Side Fire Wall 0.1 West Side 3.1 to 10.0m 0.2 Note: The most current FUS document should be referenced before design to ensure that the above figures are consistent with the intent of the Guideline Legend Drop down menu - choose option, or enter value. No Information, No input required. Framing Material Floor Space Area Enter Ground Floor Area (A) of One Unit Only : 63 Square Metres (m2) Required Fire Flow( without reductions or increases per FUS) (F = 220 * C * A) Round to nearest 1000L/min Reductions/Increases Due to Factors Affecting Burning 126 Unit Area in Square Meters (m 2 ) Required Volume of Fire Flow (m 3 ) Total Fire Flow (L/min) 2,000 Combustible 0 N/A 2,000 None 0 N/A 0.55 m 1,100 Total Required Fire Flow, rounded to nearest 1000 L/min, with max/min limits applied: Total Required Fire Flow (above) in L/s: Required Duration of Fire Flow (hrs) 0 3, Date: 8/18/2011 Stantec Consulting Ltd. Bldg_AC W:\active\ Shillington\Design\Analysis\WTR\wtr_FUS_FIREFLOW_calculations.xlsx

4 Lynch, Amanda From: Sent: To: Subject: Robertson, Syd Friday, June 24, :23 PM Lynch, Amanda RE: 1251 Shillington Ave - Boundary conditions and constraints Hi Amanda: Please note that there are no downstream sewer servicing constraints that would impact the proposed development at the above noted site. Syd Robertson, C.E.T. Project Manager, Infrastructure Approvals DRP, Urban Services Branch, Outer Core Planning & Growth Management Department 110 Laurier Ave. W., 4th Floor E Ottawa, ON K1P 1J1 (613) ext/poste Syd.Robertson@ottawa.ca From: Robertson, Syd Sent: June 23, :17 PM To: 'Lynch, Amanda' Subject: RE: 1251 Shillington Ave - Boundary conditions and constraints Hi Amanda: Water Boundary Condition results for 1251 Shillington Avenue. NOTE: The 152 mm watermain cannot deliver a fire flow of 183 L/s at this location. The following are boundary conditions, HGL, for hydraulic analysis at 1251 Shillington Avenue, the boundary condition analyses assumed that the property will be serviced from Shillington Avenue(see attached PDF for location). IMPORTANT: The Max Day (0.09 L/s) + FF (183 L/s) cannot be provided at 1251 Shillington Avenue Available Fire Flow= 76 L/s assuming a residual of 20psi and a ground elevation of 78.3 m Minimum Pressure during Peak Hour = m. The estimated ground elevation is 78.3 m, corresponds to a pressure of approx psi. Max Pressure Check = m. The estimated ground elevation is 78.3 m the maximum pressure is estimated to be 86.5 psi which is more than 80 psi. A pressure check at completion of construction is recommended to determine if pressure control is required. These are for current conditions and are based on computer model simulation. Disclaimer: The boundary condition information is based on current operation of the city water distribution system. The computer model simulation is based on the best information available at the time. The operation of the water distribution system can change on a regular basis, resulting in a variation in boundary conditions. 1

5 The physical properties of watermains deteriorate over time, as such must be assumed in the absence of actual field test data. The variation in physical watermain properties can therefore alter the results of the computer model simulation. I m still waiting for comments regarding sewer constraints. Syd Robertson, C.E.T. Project Manager, Infrastructure Approvals DRP, Urban Services Branch, Outer Core Planning & Growth Management Department 110 Laurier Ave. W., 4th Floor E Ottawa, ON K1P 1J1 (613) ext/poste Syd.Robertson@ottawa.ca From: Lynch, Amanda [mailto:amanda.lynch@stantec.com] Sent: June 13, :35 AM To: Robertson, Syd Cc: Wilkie, Tim Subject: 1251 Shillington Ave - Boundary conditions and constraints Syd, Tim Wilkie has requested that I contact you regarding watermain boundary conditions and storm and sanitary sewer constraints for 1251 Shillington Avenue. Below are the water demand flows and the estimated storm and sanitary flows. Could you please provide the boundary conditions and a statement of any applicable constraints for the storm and sanitary sewer capacity. Water demand Qavg = 0.036L/s Qmax day = 0.09L/s Q peak hr = 0.20 L/s Fire flow = 183L/s Sanitary Q = 0.16L/s (including infiltration) Storm Assuming a runoff coefficient of approximately 0.65 for the post-development conditions and a conservative entry time of 10min (intensity mm/hr) the total flow generated on-site (0.046ha) would be 8.7L/s. Thanks, Amanda Lynch, B.Eng Engineer in Training Stantec 1505 Laperriere Avenue Ottawa ON K1Z 7T1 Ph: (613) Ext. 272 Fx: (613) amanda.lynch@stantec.com stantec.com 2

6 Boundary condition 1251 Shillington Avenue HOLLINGTON ST SHILLINGTON AVE Shillington Avenue Service point on Shillington Avenue Estimated elevation =78.3 m SILVER ST GF HOOPER ST IM.w_Pipe_c:\data Ownership Private 1003 Public CHRISTINE AVE Legend

7 Appendix B Estimated Wastewater Discharge Calculations

8 : 1251 Shillington Avenue Estimated Wastewater Discharge 3 Townhouse units 2.7 p / unit = 9p Peaking Factor: PF = 1+ = 1+ = 4.4, max = P Peak Flow: L 1d Q L peak = 9 p = p d 86,400s s Peak Extraneous Flow: L Q ha L extraneous = = s ha s Total estimated discharge = 0.15 L/s L/s = 0.16 L/s

9 Appendix C Correspondence

10 Lynch, Amanda From: Sent: To: Cc: Subject: Adam Zlepnig Tuesday, August 16, :08 PM Wilkie, Tim Lynch, Amanda; Jason McDonald Re: Shillington FFE 4 it is! Thanks. On 8/16/ :52 AM, Wilkie, Tim wrote: Yes, unless we go sump pump for storm! Tim Wilkie Senior Project Manager Stantec 1505 Laperriere Avenue Ottawa ON K1Z 7T1 Ph: (613) Fx: (613) tim.wilkie@stantec.com stantec.com The content of this is the confidential property of Stantec and should not be copied, modified, retransmitted, or used for any purpose except with Stantec's written authorization. If you are not the intended recipient, please delete all copies and notify us immediately. Please consider the environment before printing this . From: Adam Zlepnig - Aloft Inc. [mailto:info@aloftinc.ca] Sent: Tuesday, August 16, :49 AM To: Wilkie, Tim Cc: Lynch, Amanda; Jason McDonald Subject: Re: Shillington FFE Tim, At 9-ft we have 5 risers? From: "Wilkie, Tim" <tim.wilkie@stantec.com> Date: Tue, 16 Aug :59: To: Adam Zlepnig<info@aloftinc.ca> Cc: Lynch, Amanda<Amanda.Lynch@stantec.com>; Jason McDonald<jaystoy@sympatico.ca> Subject: RE: Shillington FFE With an 8ft basement we can reduce the risers to 4 but not 3. Please advise. Tim Wilkie Senior Project Manager Stantec 1505 Laperriere Avenue Ottawa ON K1Z 7T1 Ph: (613) Fx: (613) tim.wilkie@stantec.com 1

11 stantec.com The content of this is the confidential property of Stantec and should not be copied, modified, retransmitted, or used for any purpose except with Stantec's written authorization. If you are not the intended recipient, please delete all copies and notify us immediately. Please consider the environment before printing this . From: Adam Zlepnig Sent: Tuesday, August 16, :00 AM To: Wilkie, Tim Cc: Lynch, Amanda; Jason McDonald Subject: Shillington FFE Hi Tim & Amanda, Lets keep the risers at no more than 3. We could achieve this by doing the basement ceiling at 8-ft, correct? Attached is an updated elevation drawing Thanks, Adam -- 2

12 Lynch, Amanda From: Sent: To: Cc: Subject: Adam Zlepnig - Aloft Inc. [info@aloftinc.ca] Friday, August 05, :54 PM Lynch, Amanda Jason McDonald; Fred Carmosino; Fred Zlepnig; Brian Saumure; Steve Ardington Re: Shillington Site Plan - Dwg Hi Amanda, let's do 9-ft basement is it works with the servicing. Let me know if it doesn't. Soils test is supposed to be done by this afternoon. We hope to have it to you by Monday. Cheers, Adam From: "Lynch, Amanda" <Amanda.Lynch@stantec.com> Date: Fri, 5 Aug :42: To: Adam Zlepnig<info@aloftinc.ca> Subject: RE: Shillington Site Plan - Dwg Adam, I ve been working on the design for your site. I have one more piece of information I will need from you. I didn t realize that the building elevations you sent us previously, did not have any information regarding the basement/foundation. Do the units have basements? And I will need to know the depth from the finished floor to the underside of footing. If you have drawings with measurements, then I can take the depth from those or if you can just give me the depth that would be great. It s just that I need to set the underside of footing elevation so that I can determine the elevations of the service connections. Thanks, Amanda Lynch, B.Eng Urban Land Engineering Assistant Stantec 1505 Laperriere Avenue Ottawa ON K1Z 7T1 Ph: (613) Ext. 272 Fx: (613) amanda.lynch@stantec.com stantec.com The content of this is the confidential property of Stantec and should not be copied, modified, retransmitted, or used for any purpose except with Stantec's written authorization. If you are not the intended recipient, please delete all copies and notify us immediately. Please consider the environment before printing this . From: Adam Zlepnig [mailto:info@aloftinc.ca] Sent: Monday, July 11, :50 PM To: Lynch, Amanda Cc: Wilkie, Tim; Jason McDonald Subject: Shillington Site Plan - Dwg Here you are Amanda. Cheers, 1

13 Appendix D Geotechnical Investigation

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