prepared for: hlh investments limited …...proposed mixed use commercial and residential...
TRANSCRIPT
Project No.: DEL18-081 Date: April 15, 2019
PREPARED FOR:
HLH Investments Limited
Proposed Mixed Commercial and Residential Development
1600 Hyde Park RoadLondon, Ontario
Preliminary Servicing Report
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
TABLE OF CONTENTS
INTRODUCTION ............................................................................................................................... 1
EXISTING CONDITIONS .................................................................................................................. 1
2.1 Site Topography/Drainage ............................................................................................................ 1
2.2 Soil Conditions (Geotechnical) ...................................................................................................... 2
2.3 Existing Servicing .......................................................................................................................... 2
2.3.1 Water ..................................................................................................................................... 2
2.3.2 Storm ..................................................................................................................................... 2
2.3.3 Sanitary ................................................................................................................................. 3
2.3.4 Other Services ....................................................................................................................... 3
REVIEW AGENCIES ........................................................................................................................ 3
3.1 City of London ............................................................................................................................... 3
PROPOSED DEVELOPMENT ......................................................................................................... 4
4.1 Proposed Grading ......................................................................................................................... 4
4.2 Proposed Servicing ....................................................................................................................... 4
4.2.1 Water ..................................................................................................................................... 4
4.2.2 Storm ..................................................................................................................................... 5
4.2.3 Sanitary ................................................................................................................................. 5
4.3 Stormwater Management .............................................................................................................. 6
4.3.1 Quantity Control .................................................................................................................... 6
4.3.2 Quality Control ....................................................................................................................... 7
4.3.3 Erosion and Sediment Control .............................................................................................. 7
4.4 Transportation ............................................................................................................................... 7
4.5 Noise Attenuation .......................................................................................................................... 7
CONCLUSIONS AND RECOMMENDATIONS ................................................................................ 8
LIST OF APPENDICIES
Appendix A – Preliminary Servicing Figures, Site Plan and City As‐built Drawings Appendix B – Preliminary Fire Flow Calculations and Sanitary Sewer Flow Calculations
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
Page 1 of 8
INTRODUCTION
Development Engineering (London) Limited (DevEng) has been retained by Wilson Diaz Architecture Inc., on behalf of HLH Investments Ltd.to prepare a preliminary servicing report in support of a zoning By‐law Amendment and Site Plan Application for the sites municipally known as 1480 North Routledge Park, 1656,1648,1480,1634,1622,1600 Hyde Park Road and 1069 Gainsborough Road in London, Ontario with a site area of approximately 1.9 Ha. The subject site is comprised of seven (7) separate municipal addresses. The current proposed concept is anticipated to amalgamate six (6) municipal addresses 1480 North Routledge Park, 1648, 1634, 1622 and 1600 Hyde Park Road and 1069 Gainsborough Road to develop a mixed commercial, office and residential buildings under its current zoning. The remaining existing municipal address known as 1656 Hyde Park Road will be retained individually as it contains an existing heritage building. Review of the City of London’s zoning by‐law Z.‐1 reveals that the subject site is currently zoned as BDC (Business District Commercial). A preliminary site plan concept prepared by Wilson Diaz Architect Inc. as part of the pre‐application consultation package submitted to the City has been included as part this report in Appendix A. The current proposed concept is to develop the site with two (2) 12 storey residential apartment towers, two (2) 2 storey mixed commercial and office buildings and two (2) 1 storey commercial buildings along with a single level underground parking garage structure. This report has been prepared following pre‐consultation with the City of London in support of a zoning by‐law amendment and site plan approval of the subject development. The report describes the existing conditions of the site, outlines servicing and anticipated stormwater management (SWM) requirements, and proposes grading, servicing and SWM options whereby these requirements can be met.
EXISTING CONDITIONS
The existing site is bounded by three (3) municipal roads, North Routledge Park to the north, Hyde Park Road to the east and Gainsborough Road to the south as well as an existing commercial development to the west. The site is currently partially developed with an existing single storey multi‐unit commercial building residing on municipal address 1634 Hyde Park Road and an existing heritage office building on municipal address 1656 Hyde Park. The remaining undeveloped area of the site comprises of a combination of existing gravel and paved parking areas along with open green space.
2.1 SITE TOPOGRAPHY/DRAINAGE
Site elevation contour mapping was derived from a topographic survey of the subject site conducted by Development Engineering (London) Limited dated February 22, 2019 and Ontario Base Maps (OBM). The geodetic elevation of the site ranges from approximately 272 m along its eastern property line along Hyde Park Road to approximately 271 m along the west side of the property. In addition, plan and profile drawings for nearby municipal rights‐of‐way were provided by the City of London. These were reviewed to provide a general understanding of the existing conditions of the subject site.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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Site drainage from the existing gravel parking lot to the west of the existing buildings generally sheet flows west to a drainage ditch on the neighboring property to the west. Drainage from the paved parking area east and south of the existing building on 1634 Hyde Park Road is collected and outlets via an existing 300 mm diameter private storm sewer to municipal storm maintenance hole #8S661 installed as part of the 2015 Hyde Park Road reconstruction project.
2.2 SOIL CONDITIONS (GEOTECHNICAL)
A geotechnical investigation was conducted and summarized in a report by EXP Services Inc. dated June, 2015. Results of the investigation indicate a variety of surface treatments (asphalt, gravel and topsoil) underlain by approximately 3m of native clayey silt till.
2.3 EXISTING SERVICING
As‐built plan and profile drawings were acquired from the City of London for Hyde Park Road, Gainsborough Road and North Routledge Park. Area plan and design sheet drawings have also been provided by the City indicating the design targets and discharge allocation for the subject site and down stream system capacities. Refer to Figures 1‐3 in Appendix A for a graphical representation of the existing municipal civil services available for the subject site.
2.3.1 Water
There are two (2) existing 25 mm diameter PEX municipal water services to the site installed as part of the 2015 Hyde Park Road reconstruction project. Both services are currently supplied from the existing 450 mm diameter municipal watermain on Hyde Park Road. It is assumed one (1) of these services supply the existing heritage building residing on municipal address 1656 Hyde Park Road while the other presumably supplies the existing commercial building at municipal address 1634 Hyde Park Road. The site is currently bounded by municipal watermains on all adjacent municipal road; an existing 300 mm diameter watermain on the south (near) side of North Routledge Park, an existing 600 mm diameter watermain on Gainsborough Road and both a 450 mm and 600 mm distribution watermain on Hyde Park Road. There is also an existing 900 mm municipal transmission watermain on Hyde Park Road. As noted in the City pre‐consultation comments, there will be no connections made to the existing 900 mm municipal transmission watermain on Hyde Park Road as part of this development. There are two (2) existing municipal fire hydrants operating on the existing 900 mm diameter watermain flanking the site frontage of Hyde Park Road. Refer to Figures 1‐3 in Appendix A for a graphical representation of the existing municipal watermain available to service the subject site.
2.3.2 Storm
Hyde Park Road, Gainsborough Road and North Routledge Park have fully urban profiles. Storm drainage for each municipal right of way is provided via intermittent curbside catchbasins connected to a municipal storm sewer system. City Record drawings indicate minor drainage from Hyde Park Road is collected and conveyed through a series of existing 450 mm dia. to 675 mm dia. municipal storm sewers within Hyde Park Road with an outlet to the Hyde Park North stormwater management facility (SWMF). Minor drainage from the Gainsborough Road right of way is conveyed westerly via an existing 2100 mm dia. municipal storm sewer outletting into the existing Stanton Drain. Based on area plan received from the City, it is unclear where collected drainage from the within the North Routledge Park municipal right of way outlets.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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Per Plan #20897 prepared by Whitney Engineering, approximately 66% (1.3Ha.) of the subject site has been allocated to the existing 2100 mm municipal storm sewer on Gainsborough Road at a run‐off coefficient of C=0.75. It is our understanding based on visual site conditions that the roof drains from the existing buildings on municipal addresses 1656 and 1634 Hyde Park outlet to grade.
2.3.3 Sanitary
There are currently three (3) existing 150 mm diameter private sanitary drain connections (PDC) currently servicing the subject site. There is an existing service to the existing retail building on municipal address 1634 Hyde Park Road with an outlet to the existing 200 mm diameter municipal sanitary sewer installed as part of the 2015 Hyde Park Road Reconstruction. There are two (2) additional 150 mm diameter municipal sanitary services to municipal addresses 1622 and 1600 Hyde Park Road which are currently not assumed to be actively in service. Sanitary area plans and design sheets have been provided by the City of London. Per Plan #T18‐40 prepared by the City of London Environmental & Engineering Services Division, municipal addresses 1656, 1648 Hyde Park Road and 1480 North Routledge Park (0.51Ha.) have been allocated flows to the existing 250 mm diameter municipal sanitary sewer on North Routledge Park at a mas density of 100p/Ha. (51 people). Per Plan #20898 prepared Whitney Engineering Inc., municipal addresses 1634, 1622, 1600 Hyde Park Road and 1069 Gainsborough Road (1.55Ha.) have been allocated flows to the existing 450 mm diameter municipal sanitary sewer on Gainsborough Road at a max density of 100p/Ha. (155 people). It is our understanding based on discussion with HLH Investment Inc. the existing heritage building located at 1656 Hyde Park Road is currently being serviced via an onsite wastewater treatment (septic) system.
2.3.4 Other Services
Due to the location of the site in a fully developed business area, it is assumed that North Routledge Park, Hyde Park Road and Gainsborough Road have available hydro, telecommunications (Bell and Rogers) and gas services that could be utilized for the development.
REVIEW AGENCIES
3.1 CITY OF LONDON
The subject site is located within the City of London. Any future site plan applications must be submitted to and subsequently approved by the City of London. The City will also be responsible for the approval of any building permits associated with the subject site.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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PROPOSED DEVELOPMENT
As noted earlier, the subject site is comprised of seven (7) separate municipal addresses. The current
concept is to amalgamate six (6) municipal addresses 1648,1634,1622,1600 Hyde Park Road, 1480 North
Routledge Park and 1069 Gainsborough Road into a single municipal address. The existing commercial
building residing on municipal address 1634 Hyde Park Road will be demolished to develop the site with
a combination of commercial, office and residential buildings under its current zoning. The existing
heritage building on municipal address 1656 Hyde Park Road will be retained as a separate parcel. A
preliminary site plan concept prepared by Wilson Diaz Architect Inc. as part of the pre‐application
consultation package submitted to the City has been included as part this report in Appendix A. The
current concept is to develop the site with two (2) 12 storey residential apartment towers, two (2) 2 storey
mixed commercial and office buildings and two (2) 1 storey commercial buildings along with a single level
underground parking garage structure.
4.1 PROPOSED GRADING
The proposed grading of the site will be conducted in a manner to provide, where possible, a reasonable cut/fill balance while matching into existing grades along the property boundaries. An overland flow route should be provided such that major storm flows are not directed towards any neighboring properties but instead enter existing municipal infrastructure (a municipal right‐of‐way). No grading will be conducted in or onto the neighboring properties or easements unless otherwise approved. Detailed grading design will be completed during the site plan approval stage.
4.2 PROPOSED SERVICING
4.2.1 Water
It is anticipated at the time of this report to amalgamate six (6) municipal addresses 1648,1634,1622,1600 Hyde Park Road, 1480 North Routledge Park and 1069 Gainsborough Road into a single municipal address. The existing heritage building on municipal address 1656 Hyde Park Road will be retained as an individual parcel. The existing heritage building on municipal address 1656 Hyde Park will remain a separate parcel and is assumed to continue to be supplied by an existing 25 mm municipal water service from Hyde Park Road. Further investigation is required during detailed design to confirm the exact service location. The proposed amalgamated parcel will require a new water service to adequately meet both domestic and fire flow demands connected to existing municipal watermain on Hyde Park Road, Gainsborough Road and/or North Routledge Park. The sizing of the new service will be confirmed during detailed design. It is anticipated one or more municipal or private hydrants will be required to provide fire protection to the proposed buildings in accordance with requirements set forth in the Ontario Building Code (OBC 2012) and the Fire Underwriters Survey (FUS, 1999). It is anticipated based on the City of London pressure zone hydraulic grade line elevation of 317.0m (Hyde Park Pumping Station and Uplands Pumping Station), a residual pressure of 54.78 psi will be attainable during fire flow conditions which is greater than the 20.0 psi minimum pressure requirement per OBC 2012. A water turnover calculation will also be provided during detailed design to verify water quality can be maintained on the proposed private water service.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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As noted earlier, the existing retail building at municipal address 1634 Hyde Park Road will be demolished as part of the site development. The existing 25 mm municipal water service from Hyde Park Road to 1634 Hyde Park Road will be decommissioned and capped at the main per City of London Standards.
4.2.2 Storm
The existing heritage building on municipal address 1656 Hyde Park Road will remain a separate parcel. Per Plan #T16‐40 prepared by the City of London Environmental & Engineering Services Division, a small portion of municipal address 1656 Hyde Park Road was accounted for in the municipal storm sewer on North Routledge Park. Existing roof leaders and surface drainage will be collected and incorporated into the overall site development of the amalgamated site. The majority of the site is tributary to the existing 1950mm ‐ 2100 mm diameter municipal storm sewers on Hyde Park Road and Gainsborough Road. The sizing of the private drain connection will be confirmed during detailed design and coordinated with the Mechanical Consultant. It is anticipated SWM controls will be required to reduce the rate of runoff in the post‐development condition as described in Section 4.3 to meet the allocated design flow per Plan #20897 prepared by Whitney Engineering Inc.
4.2.3 Sanitary
As noted previously, it is our understanding based on discussions with HLH Investment Inc. the existing heritage building located at 1656 Hyde Park Road is currently being serviced via an onsite wastewater treatment (septic) system. The existing on‐site wastewater treatment (septic) system will need to be decommissioned and removed in accordance with all applicable Ministry guidelines. As part of the site development, a new sanitary private drain connection is anticipated for 1656 Hyde Park Road to be connected to the existing 250 mm diameter municipal sanitary sewer on North Routledge Park. An area plan and design sheet prepared by City of London Environmental & Engineering Services Division, plan #T16‐40 denotes an allowable design sanitary peak flow of approximately 0.9 L/s generated by 0.73Ha. of the subject site with a design criterion of 100 people/Ha. (73 people) and a per capita rate of 230 L/person/day. The majority of the site is tributary to the existing 450 mm diameter municipal sanitary sewer on Gainsborough Road. An area plan and design sheet prepared by Whitney Engineering Inc. plan #20897 denotes an allowable design sanitary peak flow of approximately 4.5 L/s generated by 1.55Ha. with a design criterion of 100 people/Ha. (156 people) and a under previous City per capita rate of 295 L/person/day. It is anticipated based on current unit counts from the site plan provided by Wilson Diaz Architects Inc. that a post development sanitary peak flow rate of 11.9 L/s will be generated by a proposed site population of approximately 1052 people. The sizing of the outlet private drain connection will be confirmed during detailed design and coordinated with the Mechanical consultant. As noted in the City pre‐consultation comments, the anticipated peak flow will exceed the design allocation and a sanitary capacity analysis will be required. Per a discussion with Marcus Schaum on April 9, 2019 of the City of London Wastewater and Drainage Engineering division (WADE), a sanitary capacity analysis is required from the site outlet connection on Gainsborough Road to the existing 825 mm diameter municipal sanitary trunk sewer to the west of the subject site. The pipe capacities for the five (5) relevant pipe segments are based on Whitney Engineering Inc. design plan #20897 are summarized in Table 1. The results of these calculations are summarized in Table 1 below. Detailed calculations are included in Appendix B.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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Table 1 – Sanitary Capacity Analysis Summary
Trunk Segment Assessed Calculated Peak Flow (L/s) Sewer Capacity (L/s)
Area #15 – Gainsborough Road – MH 146‐150 151.0 + 11.9 = 162.9 200
Area #16 – Gainsborough Road – MH 150‐151 153.1 + 11.9 = 165.0 202
Area #17 – Gainsborough Road – MH 151‐152 153.8 + 11.9 = 165.7 202
Area #18 – Gainsborough Road – MH 152‐153 154.9 + 11.9 = 166.8 202
Area #19 – Gainsborough Road – MH 153‐154 157.2 + 11.9 = 169.1 202
As can be deduced from Table 1, the impacted existing 450 mm diameter segments of the municipal
sanitary sewer are not anticipated to be near their design capacity even after the addition of the
proposed site flows.
4.3 STORMWATER MANAGEMENT
The site is located in the Stanton Drain Subwatershed. An addendum to the 2002 Hyde Park EA was completed in 2018 by AECOM and notes the removal of the previously proposed Hyde Park stormwater management facility (SWMF) #4. As per figure 6.1.2 of the 2018 addendum, the subject site is located within subcatchment 504C, which is no longer tributary to any downstream regional SWMF. As such, the site falls under Case 3 of the City of London Permanent Private Stormwater Systems (PPS) in the City of London Design Specifications and Requirements Manual, dated October 2003, updated July 2018. According to record drawing # 20897 obtained from the City of London, approximately 1.3 hectares of the 2.0 ha subject site is tributary to the existing 2100mm diameter municipal storm sewer on Hyde Park Road. In accordance with the requirements outlined in the subwatershed study, Case 3 of the City of London PPS, and the pre‐consultation comments dated March 21, 2019, the following criteria are anticipated for the subject site:
• Restrict post‐development peak flows from the subject site for all storm events up to and including the 100‐year design storm event to the lesser of the pre‐development peak flow rates or the allowable runoff rates based on area plan #20897; and,
• Provide ‘normal’ (level 2) water quality treatment prior to discharge from the subject site.
4.3.1 Quantity Control
The water quantity control requirement for the subject site can be achieved through a combination of rooftop/surface attenuation and underground storage. Based on preliminary modelling, it is estimated approximately 400m3 of storage is required to restrict post development peak flows from the subject site to below allowable targets. Maximum surface ponding would be limited to 0.3m in paved areas, and maximum roof ponding would be limited to 0.15m through the use of roof scuppers. Modeling using hydraulic modeling software such as PCSWMM would need to be conducted during the detailed design stage to ensure any proposed SWM system adheres to the aforementioned criteria set forth by City of London.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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4.3.2 Quality Control
The water quality control requirement can be achieved through the installation of one or more oil‐grit separators on the proposed private storm sewer system. Oil‐grit separators are recommended in the MECP Stormwater Management Planning and Design Manual (March 2003) for sites less than 5.0 ha in size. Sizing of the any proposed oil‐grit separator(s) would be conducted at the detailed design stage. Routine maintenance is critical for oil‐grit separator unit(s) to continue to function per design.
4.3.3 Erosion and Sediment Control
Complementary to the site servicing and grading design, erosion and sediment control (ESC) details are to be included with the Site Engineering design. Measures will be proposed to mitigate the offsite migration of sediments by incorporation of various best management practices and control measures. Such controls include silt fencing, straw bale barriers for inlet grate protection (CBs, and CBMHs), construction entrance mud mats, robust silt barriers in concentrated flow routes, tree preservation fencing and straw coconut erosion control blanket treatment of significant fill/cut slopes. The control measures to be implemented on site should include:
• Installation of silt control fencing around the site perimeter at down‐gradient locations; • Preventing silt or sediment laden runoff from entering inlets (catchbasins / catchbasin
maintenance holes) by wrapping their tops with filter fabric and incorporating straw bale filters (flow checks);
• Maintaining sediment and erosion control structures in good repair (including periodic cleaning as required) until such time as the Engineer or City of London approves their removal;
• Incorporation of temporary measures at site construction entrances to minimize tracking of mud and debris onto municipal road allowances; and,
• Scheduling of critical conveyance works during forecasts of little to no precipitation. Detailed ESC plans will be provided for review by the City of London at the site plan approval stage.
4.4 TRANSPORTATION
The proposed site plan concept includes three (3) driveway connections, one connection point each to North Routledge Park, Hyde Park Road and Gainsborough Road respectively. Other details concerning access arrangement will be made during site plan approval. Per the record of pre‐application consultation summary letter, a Traffic Impact Study (TIS) will be required, to be completed during detailed design.
4.5 NOISE ATTENUATION
Hyde Park Road and Gainsborough Road are arterial roadways in the City of London and as such properties adjacent to them are subject to significant road noise. A noise study will be required to be completed during detailed design and submitted to the City of London in support of site plan approval.
Preliminary Servicing Report Job No.: DEL18-081 Proposed Mixed use Commercial and Residential Development – 1600 Hyde Park Road April 15, 2019
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CONCLUSIONS AND RECOMMENDATIONS
Based on the preceding information, the following conclusions can be made with regards to servicing of the sites at 1480 North Routledge Park, 1656,1648,1480,1634,1622,1600 Hyde Park Road and 1069 Gainsborough Road in London, Ontario:
• There are existing municipal watermain, storm sewers and sanitary sewers available to service potential development of the subject site and will require connections to existing private infrastructure on North Routledge Park, Hyde Park Road and Gainsborough Road;
• Any potential development of the subject site will require detailed drawing submissions to the City of London;
• It has been noted by Marcus Schaum on April 9, 2019 of the City of London Wastewater and Drainage division there are no capacity concerns within the Hyde Park pumping station and a sanitary capacity analysis of the downstream municipal sanitary sewer must extend to the existing 825 mm diameter municipal truck sewer to the west of the subject site. Per the analysis completed in this report, no capacity concerns are anticipated within the impacted sewer segments as a result of the proposed development;
• The subject site can be serviced for storm by constructing a new connection to the existing 2100 mm municipal storm sewer on Gainsborough Road;
• On‐site SWM will be required to support development of the subject site. The SWM requirements are anticipated as follows: o Restrict post‐development peak flows from the subject site for all storm events up to and
including the 100‐year design storm event to the lesser of the pre‐development peak flow rates; the allowable runoff rates based on area plan #20897; and,
o Provide ‘normal’ (level 2) water quality treatment prior to discharge from the subject site. • A TIS will be required to support the proposed development; and, • A detailed noise study will be required to verify impacts of vehicular traffic on Hyde Park Road
and Gainsborough Road on the subject site, to be submitted in support of Site Plan Approval. It is recommended that: • The City of London accepts this report in support of the proposed development and confirms
that servicing strategy therein; • This report be utilized to inform the detailed engineering designed of the subject site.
If you have any questions or concerns, please contact the undersigned. DEVELOPMENT ENGINEERING (LONDON) LIMITED Shawn Duncan, C. Tech. Derek J. Hoevenaars, P. Eng. Senior Designer Senior Project Engineer
APPENDIX A
PRELIMINARY SERVICING FIGURES, SITE PLAN DRAWING AND CITY AS‐BUILT DRAWINGS
PROPOSEDWATERMAINCONNECTION
1600 HYDE PARK
DEVELOPMENT
DEL18-081
1.0
Figure Number
SD
APRIL 15, 2019
London Office
41 Adelaide St. N., Unit 71
(519) 672-8310
Paris Office
31 Mechanic St., Unit 301
(519) 442-1441
450 PVC WM
450 PVC WM
900 CONC. WM
900 CONC. WM
EX.
HYD
EX.
HYD
EX.
HYD
EX.
HYD
EX.
HYD
450 PVC WM
30
0 P
VC
W
M
600 C
ON
C. W
M
900 CONC. WM
30
0 P
VC
W
M
EX.
HYD
EX.
HYD
HYDE PARK ROAD
NO
RT
H R
OU
TL
ED
GE
P
AR
K
GA
IN
SB
OR
OU
GH
R
OA
D
PRINCE OF WALES GATE
PROPOSEDSTORM SEWERCONNECTION
1600 HYDE PARK
DEVELOPMENT
DEL18-081
2.0
Figure Number
SD
APRIL 15, 2019
London Office
41 Adelaide St. N., Unit 71
(519) 672-8310
Paris Office
31 Mechanic St., Unit 301
(519) 442-1441
EX
. 3
75
Ø S
TM
HYDE PARK ROAD
NO
RT
H R
OU
TL
ED
GE
P
AR
K
GA
IN
SB
OR
OU
GH
R
OA
D
PRINCE OF WALES GATE
EX
. 6
75
Ø S
TM
EX. 750Ø STM
E
X
.
7
5
0
Ø
S
T
M
EX
. 7
50
Ø S
TM
EX
. 7
50
Ø S
TM
E
X
. 6
0
0
Ø
S
T
M
EX.
ST-1
EX.
ST-3
EX.
ST-4
EX.
ST-5
EX.
ST-6
EX.
ST-7
EX.
ST-8
EX.
ST-2
EX.
8S662
EX.
8S661
EX.
8S660
EX.
8S273
EX.
8S276
E
X
. 1950Ø
S
TM
EX. 450Ø
STM
EX.
8S364
EX. 450Ø STM
EX
. 7
50
Ø S
TM
EX
. 2
10
0Ø
S
TM
EX
. 600Ø
ST
M
EX. 675Ø STM
EX.
TEE 40
EX.
TEE 39
EX
. 2
10
0Ø
S
TM
ST.
INSP.
MH
OGS
PROPOSEDSANITARY
SEWERCONNECTION
1600 HYDE PARK
DEVELOPMENT
DEL18-081
3.0
Figure Number
SD
APRIL 15, 2019
London Office
41 Adelaide St. N., Unit 71
(519) 672-8310
Paris Office
31 Mechanic St., Unit 301
(519) 442-1441
HYDE PARK ROAD
NO
RT
H R
OU
TL
ED
GE
P
AR
K
GA
IN
SB
OR
OU
GH
R
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D
PRINCE OF WALES GATE
EX. 200Ø SAN
EX
. 2
50
Ø S
AN
EX
. 2
50
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. 2
50
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AN
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E
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SA-3
SA-4
SA-5
SA-6
SA-8
SA-9
SA-10
EX
. 2
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AN
SA-7
EX.
HP34
150
146/HP125
151
152
153
HP131
HP132
HP450
EX. 200Ø SAN
EX
. 150Ø
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C
EX
. 150Ø
PD
C
EX. 200Ø SAN
E
X
.
2
0
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Ø
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A
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. 4
50
Ø S
AN
EX. 200Ø SAN
PROP. SAN.
INSP. MH
PROP. MH
PROP.
PDC
MUN No. 1656
NOTES
LEGEND
1743
COMMERCIAL & RESIDENTIALDEVELOPMENT
1600 HYDE PARK RD
A010
SITE PLAN
SD
SD
2019-03-13
KEY PLAN
AS NOTED
1 SITE PLANSCALE = 1:300
APPENDIX B
PRELIMINARY FIRE FLOW CALCULATIONS AND SANITARY SEWAGE FLOW CALCULATIONS
4/15/2019 1 of 1
Date: April 15, 2019By: Shawn Duncan Checked: Derek Hoevenaars, P.Eng.
Hydraulic Grade Line (Low Level System) = 317.00 m
Elevation of Ex. School FFE= 272.00 m
Static Pressure at Building before losses= 64.01 PSI
CALCULATE FIRE FLOW DEMAND:
Total flow required for fire protection =
Sprinkler Demand + Hose Stream Demand = 1000+ 250 = 1250.0 usgpm = 1,040.84 igpm
Maximum Day Peak Demand = 174.0 usgpm = 144.89 igpm
Total Flow Required = 1424.00 usgpm = 1,185.73 igpm
CHECK PRESSURE CONSTRAINT:
The watermain should be sized so that the minimum pressure reached during fire flows is 20 psi.
We need to account for pressure losses in the system. The equivalent length method is used below.
Equivalent Length (m)
110.0 m
L/D= 60 D= 200 mm 12.0 m
L/D= 6 D= 200 mm 1.2 m
Total Equivalent Length of pipe and fittings = 123.2 m
Calculate the frictional head loss in the equivalent length of pipe using the Hazen-Williams Formula:
f = 0.2083 (100/C)1.85 x Q1.852/di4.8655 where f is in m of water/100 m of pipe, C is unitless, Q is in usgpm, di is in inches
C = constant for inside roughness of pipe 110
Q = flow in usgpm = 1424.0 usgpm
di = inside diameter of pipe = 200 mm
f = friction head in m of water per 100 m of pipe = 5.2719 m water / 100 m of pipe
Total head loss = 5.2719 x 123.2/100 = 6.49503 m
Pressure drop in equivalent length of pipe = 6.50 m = -9.22 psi
54.78 psi
200 Gate Valve (fully open)
(C=110 for a 200 dia pipe as per City of London Standards)
Residual pressure at proposed school addition finished floor =
Length of 200 dia water service to proposed building addition=
300x300x200 Tee (flow through branch)
CHECK STATIC PRESSURE AT THE PROPOSED MIXED RESIDENTIAL AND COMMERCIAL DEVELOPMENT BASED ON CITY PRESSURE ZONE HGL
As outlined in NFPA 13 - Installation of Sprinkler Systems, a hose stream demand is to be considered for fire fighting as well. We will assume an ordinary hazard occupancy for the residential appartment (to be conservative). Ordinary Hazard occupancy requires a hose stream demand of 250 usgpm.
FIRE FLOW WATERMAIN CALCULATIONS - SPRINKLERED BUILDINGDEL18-081 - 1600 HYDE PARK ROAD, LONDON, ONTARIO
A new sprinkler system will be installed throughout the proposed residential appartment buildings. The project mechanical engineers have not provided a sprinkler demand at the time of this calculation. A conservative demand of 1000 usgpm has been used in lieu of actual demands for the purpose of this calculation
190415 - DEL18-081 - Fire Protection Calcs - SPRINKLERED.xlsx
Date: April 15, 2019By: Shawn Duncan Checked: Derek Hoevenaars, P.Eng.
1052 1.940 230 1.1 0.10 11.662 0.194 11.856* Assumed population of Building B-E per OBC - 8.2.1.3. Sewage System Design Flows - Shopping = 5 L / 1m2 Floor Area
Building Name BLDG Area (m2) L / m2 Total Litres Building Name Units Pop/Unit Total PopulationBuilding B 744 5 3720.00 Building A 205 2.4 492Building C 682 5 3410.00 Building F 205 2.4 492Building D 1127 5 5635.00 Ex. House 1 3.0 3Building E 422 5 2110.00 Total Pop. 987
Total Litres 14875.00Per Capita Flow 230
Pop. Equiv. 65
PEAK SANITARY CALCULATIONS DEL18-081 - 1600 HYDE PARK ROAD, LONDON, ONTARIO
PopulationPer Capita Flow
(L/s)
Uncertain
Development Factor
Infiltration Flow
(L/s/Ha)Sewage (L/s)Area (Ha)
Infiltration
(L/s)Total (L/s)