1. WelcomeInvestigation of Basement Flooding andStormwater Runoff Quality ControlStudy Areas 24, 25, 26 and 27(Yonge Street & Sheppard Avenue Area)Public Information Centre #2View displays and discuss the study with project staffFeel free to ask questions and fill out a comment sheet

2. Purpose of Tonights Meeting Provide background on the study. Present the findings of the study. Present the recommended solutions for Study Areas24, 25, 26 and 27. Receive your comments. Outline the next steps in the study. We want to hear from you! Your input is veryimportant. 3. Purpose of Our Study Examine existing stormwater drainageand sanitary sewer systems and identifythe causes of basement flooding and/orsurface flooding (severe ponding onstreets during extreme storms). Assess control measures to improve thequality of stormwater surface runoff as perthe Citys Wet Weather Flow Master Plan. Make recommendations to: Reduce the risk of future flooding;and, Improve the quality of stormwaterrunoff before it is discharged to theWest Don River and/or its tributaries. 4. Study Area 24 Study Area 24 has been subject topockets of basement and surfaceflooding incidents during major stormsin May 2000, August 2005, andMay/July 2013. Three (3) storm sewer outfallsdischarge stormwater runoff totributaries of Don River West Branch.#24-1#24-2Outfall #24-1 Outfall #24-2#24-3 5. Study Area 25 Study Area 25 has been subject topockets of basement and surface floodingincidents during major storms, includingstorms in May 2000, August 2005, andMay/July 2013. Eight (8) storm sewer outfalls dischargestormwater runoff to tributaries of DonRiver West Branch.#25-1#25-2#25-4 #25-3#25-6#25-8#25-7Outfall #25-1Outfall #25-2Outfall #25-3Outfall #25-4Outfall #25-5Outfall #25-6Outfall #25-7Outfall #25-8#25-5 6. Study Area 26 Study Area 26 has beensubject to pockets ofbasement and surfaceflooding incidents duringmajor storms, includingstorms in May 2000,August 2005, and May/July2013. Seven (7) storm seweroutfalls dischargestormwater runoff totributaries of Don RiverWest Branch.#26-1#26-2#26-3#26-5 #26-6#26-7#26-8#26-9Outfall #26-1 Outfall #26-2Outfall #26-7 7. Study Area 27 Study Area 27 has beensubject to pockets ofbasement and surfaceflooding incidents duringmajor storms, includingstorms in May 2000, August2005, and May/July 2013. Thirteen (13) storm seweroutfalls dischargestormwater runoff totributaries of Don River EastBranch.#27-1#27-2#27-3#27-4#27-6 #27-7#27-5#27-9#27-8#27-10#27-11#27-12Outfall #27-1Outfall #27-2Outfall #27-3Outfall #27-4Outfall #27-5 Outfall #27-6#27-13Outfall #27-7Outfall #27-11Outfall #27-8 Outfall #27-9 Outfall #27-10 8. Municipal ClassEnvironmental Assessment (EA)Process The City of Toronto must follow the Municipal ClassEnvironmental Assessment (EA) process to meet therequirements of Ontarios EA Act for all infrastructure projects. The EA Act requires the protection, conservation and wisemanagement of the environment while undergoinginfrastructure enhancements. The EA process is also an opportunity for the public andagencies to provide input throughout the project. 9. The Steps Involved in Our StudyMany steps are involved in the study before solutions can be recommended. This workincludes: Collect and review background data on land use, population, soil conditions, sanitary sewer andstorm drainage systems, topography and overland drainage patterns, flooding history, and operation/maintenance records; Conduct field surveys to inventory the number of roof leaders disconnected, survey catchbasins,identify low lying areas, and conduct an inventory of storm outfalls; Develop computer models to: analyse the causes of flooding and to predict flows under various storm events; and, assess the impacts of stormwater runoff on water quality in Don River; Develop and receive feedback on alternatives to address the issue of flooding in each of the studyareas and improve stormwater runoff water quality before it is discharged to Don River (1st PublicInformation Centre held on September 26, 2013); Gather input from the community and review agencies and undertake further assessment andrefinement of alternatives; Identify and assess alternatives and present recommended solutions( 2nd Public Information Centre); and, Gather input from the community and review agencies and finalize the EA study based on inputreceived.We Are Here 10. Our Basement Flooding FindingsUnder normal rainfall events, the storm and sanitarysewer systems operate as designed. However,during extreme storms, the following takes place:Storm System: Stormwater flow exceeds the storm sewer capacity and overloads thesystem. Significant stromwater remains on the surface and significant flows onroads and creeks. Surface water may enter basements throughbasement doors, window sills, and reverse-slope driveways. At low lying areas with no overland flowoutlet, water accumulates (ponds) onthe surface and enters the sanitarysewer system through manhole covers,contributing to excess inflow. Shallow sewers. 11. Our Basement Flooding FindingsLow Points in the AreaOverland Flow Paths 12. Our Basement Flooding FindingsSanitary System: During heavy rainfall events, the ground becomes extremely wet,water enters the sanitary system through cracks or broken pipes,cracked maintenance hole walls and loose pipe joints underground,contributing to backup of the sanitary sewers. Water entering the basement from the surface via basement doors,window sills, and reverse-sloped driveways, and through floor drains. Downspouts and weeping tiles connected to the sanitary sewersystem. Illegal or unknown cross-connections between the sanitary and stormsewer systems. Oil/grease dumped into sanitary sewers causingblockages. 13. Causes of Basement Flooding 14. Storm Drainage System Storm sewers (minor system) convey up to 1 in 2 year storms. Streets (major system) convey major storms that exceed the storm sewercapacity. Temporary ponding on streets is expected during major rain storms.Design Standards: Water level in the sanitary sewer is below basement elevation. Street flow depth should not exceed the street right-of-way limits. 15. Our Stormwater RunoffQuality Findings Urbanization has not only increased surface runoff and decreasedinfiltration into the ground but also increased the potential for the transportof pollutants via surface runoff from streets, parking lots and other hardsurfaces. Stormwater runoff often contains grit, oil/grease, heavy metals (zinc, lead,etc.), bacteria, nitrates/sulfates, salt and other pollutants. Pollutants in the stormwater runoff adversely impact the water quality ofthe receiving watercourse, which affects fisheries, wildlife, recreationaluses, visual aesthetics, etc. 16. Evaluation of OptionsThe following criteria were used in evaluating each of theoptions and selecting the recommended solutions:Natural Environment Potential impact on terrestrial systems(vegetation, trees, wildlife) Potential impact on aquatic systems,aquatic life and vegetation Potential impact on soils, groundwaterand surface water Potential impact on stream erosionSocial and Cultural Environment Potential to impact the community (i.e.community disruption - visibility, noise,traffic impacts, etc.) Potential to impact land use compatibility(parks/open spaces, recreational uses) Potential to impact archaeological and/ornatural heritage sitesTechnical Effectiveness of control measure ineliminating basement flooding and/orimproving the quality of the stormwaterrunoff Feasibility of control measure(available space, accessibility,construction requirements) Flooding impacts on upstream,downstream and surrounding areasEconomic Capital cost Operating/maintenance cost 17. Recommended Solutions Source ControlOptions recommended in the study areas include:DownspoutSealing MaintenanceDisconnectionHole Coversin Low Lying AreasPick Holes, pluggedwith rubber insertSurface Flow PathDiversionAdditional source control options recommended: Catch basin inlet control Increasing the number of catch basins Repairing sewer systems to reduceInflow/Infiltration (I/I) based on CCTV inspectionsSource control measureshelp to reduce the risk ofbasement flooding, andalso contribute toimproving stormwaterrunoff quality. 18. Recommended Solutions Source ControlCatch basin Inlet Control Devices Control the amount of water thatenters the storm sewer system duringa storm event. Allow excess stormwater to remain incatch basins or temporarily on thestreet until the storm subsides. Helps prevent overloading of thestorm sewer and sewer backups. Device is installed inside the catchbasin. It is not visible on the surface. Minimal effort and time to install. 19. Recommended Solutions Conveyance ControlOptions recommended for implementation in the study areasto help reduce the risk of basement floodingReplacement of existing stormExisting storm and/or sanitarysewers with inadequatecapacities to convey the requiredflows are replaced with largerpipes.Existing sewer pipes remain inplace and another sewer pipe isinstalled in parallel to provideadditional flow capacity.and/or sanitary sewersAdding new sewers (Twinning) 20. Recommended Solutions Conveyance ControlOption recommended for implementation in the study areasto help reduce the risk of basement floodingOversized StorageTemporary storage of flows willbe provided by undergroundoversized pipes commonlyreferred to as superpipes.Once there is adequate flowcapacity in the respective sewersystems, the flows from thesestorage facilities will begradually released. 21. Recommended Solutions Conveyance ControlOption recommended for implementation in the studyareas to improve stormwater runoff quality Bioretention units are plant and soil based, lowimpact treatment and infiltration systems. Theunits work to filter pollutants and slow downstormwater runoff. The bioretention units consist of: A soil mixture that allows easy percolation ofwater to the granular base. A granular base consisting of clear washedstones in a fabric wrap. Vegetation, trees and shrubs. Can be applied in the street right-of-way (upstreamof catch basins) in 30% of Study Areas 24, 25, 26and 27. Units on average would be designed to captureand treat 70m3/hectare which translates into runofffrom approximately 15 mm of rain. The units will be landscaped to blend into existingsurroundings; and there will be future consultationwith the community to confirm the locations ofbioretention units.Bioretention Units 22. Recommended Solutions Conveyance ControlOption recommended for implementation in the studyareas to improve stormwater runoff qualityOil/Grit SeparatorAn oil/grit separator is anunderground structure connectedto the storm sewer to improvestormwater quality by removingcontaminants from thestormwater such as grease, oil,mud, sand and trash. 23. Recommended Solution for Area 24Flood Control MeasuresHOUNSLOW AVE%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%% %%%%%%%%%%%%%% % %%%%%%%%%%%%%%%%%%%%%%%%%% %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% % %% %% %% %%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%ELLERSLIE AVEFIN CH AVE WBATHURST STCHURCHILL AVE0 200 400 mLegendSanitary Sewer Manhole% Sanitary SewerStorm Sewer Manhole% Storm SewerCatchment Area 24BuildingLotSanitary Sewer RemediationSanitary Oversized SewerStorm Sewer RemediationStorm Sewer UpgradeWest Don River 24. Recommended Solution for Area 25Flood Control Measures%%%%%%%BOGERT AVE%% % %%%%%%%%%%% %%%% %%%%%%%%%% %%%%%%%%%% %% %% % %%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%% %%%%%%%% %%%% %% %%%%%%%%%%%%%%%%%%%%% %%% %%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%% %%%% %%%%%%%%% %%%%%% %%%% %SENLAC RDJOHNSTON AVECAMERON AVEBETTY ANN DRSTUART AVELegendSanitary Sewer Manhole% Sanitary SewerStorm Sewer Manhole% Storm SewerCatchment Area 25BuildingLotSanitary Sewer RemediationSanitary Sewer UpgradeStorm Sewer RemediationStorm Sewer Upgrade0 200 400 mWest Don River 25. Recommended Solution for Area 26Flood Control Measures%%%%%%%%HENDON AVE%%%%%%%%%%% %%% %%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%YONGE STFINCH AVE WBEECROFT RDDUDLEY AVEKENNETH AVEWILLOWDALE AVESHEPPARD AVE EHOUNSLOW AVECHURCHILL AVEBYNG AVECHARLTON BLVDELLERSLIE AVEAVONDALE AVEDREWRY AVELURGAN DRANNDALE DRBURNETT AVEDORIS AVEELMHURST AVEANCONA STWest Don RiverLegendSanitary Sewer Manhole% Sanitary SewerStorm Sewer Manhole% Storm SewerCatchment Area 26BuildingLotSanitary Sewer RemediationSanitary Sewer UpgradeNew Sanitary Sewer DiversionStorm Sewer RemediationStorm Sewer UpgradeNew Storm Sewer Diversion0 200 400 600 m 26. Recommended Solution for Area 27Flood Control Measures%%%%%%%%%%% %%%HOLMES AVE%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%% %%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%% %BURBANK DROLIVE AVEWILFRED AVEBAYVIEW AVEMCKEE AVECITATION DRESTELLE AVEHIGHWAY 401 X EBYNG AVEHIGHWAY 401 X WHILLCREST AVEHOLLYWOOD AVEHAWKSBURY DRDUNVIEW AVEHI MOUNT DRBUNTY LANEREAN DRSPRING GARDEN AVEDORIS AVENORTON AVEDUDLEY AVELegendSanitary Sewer Manhole% Sanitary SewerStorm Sewer Manhole% Storm SewerCatchment Area 27BuildingLotSanitary Sewer RemediationSanitary Sewer UpgradeSanitary Oversized SewerStorm Sewer RemediationStorm Sewer UpgradeEast Don River0 200 400 600 m 27. Recommended Solution for Area 24Stormwater Quality ImprovementMeasuresSource ControlMeasuresResidential Roof downspoutdisconnection Rain barrel Additional trees& bushes Pervious driveway Lot re-gradingto grass areaIndustrial/Commercial/Institutional Flat roof top restrictors Catchbasin restrictorsin parking lots Additional trees& bushesConveyance ControlMeasuresResidential Filtration/Bioretentionin street right-of-wayIndustrial/Commercial/Institutional Filtration/Bioretentionin street right-of-way Oil/Grit SeparatorsHOUNSLOW AVE%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%% %%%%%%%%%%%%%% % %%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% % %$1ELLERSLIE AVEFINCH AVE WBATHURST STCHURCHILL AVE0 200 400 mLegendStorm Sewer ManholeStorm Sewer Outfall% Storm SewerRiverRoadway$1 Oil / Grit SeparatorBioretention Unit in the Street R.O.W.Catchment Area 24West Don River 28. Recommended Solution for Area 25Stormwater Quality ImprovementMeasuresSource ControlMeasuresResidential Roof downspoutdisconnection Rain barrel Additional trees& bushes Pervious driveway Lot re-gradingto grass areaIndustrial/Commercial/Institutional Flat roof top restrictors Catchbasin restrictorsin parking lots Additional trees& bushesConveyance ControlMeasuresResidential Filtration/Bioretentionin street right-of-wayIndustrial/Commercial/Institutional Filtration/Bioretentionin street right-of-way Oil/Grit Separators%%%%%%BOGERT AVE%% % %%%%%%%%%%% %%%% %%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%% %%%%%%%% %%%% %% %%%%%%%%%%%%%%%%%%$1SENLAC RDJOHNSTON AVECAMERON AVEBETTY ANN DRSTUART AVELegendStorm Sewer ManholeStorm Sewer Outfall% Storm SewerRoadwayRiver$1 Oil / Grit SeparatorBioretention Unit in the Street R.O.W.Catchment Area 25West Don River0 200 400 m 29. Recommended Solution for Area 26Stormwater Quality Improvement MeasuresSource Control MeasuresResidential Roof downspout disconnection Rain barrel Additional trees & bushes Pervious driveway Lot re-grading to grass areaCommercial/Institutional Flat roof top restrictors Catchbasin restrictors in parking lots Additional trees & bushesConveyance ControlMeasuresResidential Filtration/Bioretentionin street right-of-wayCommercial/Institutional Filtration/Bioretentionin street right-of-way Oil/Grit Separators%%%%%%%HENDON AVE%%%%%%%% %%%% %%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%$1$1$1$1$1$1$1$1YONGE STFINCH AVE WBEECROFT RDDUDLEY AVEKENNETH AVEWILLOWDALE AVESHEPPARD AVE EHOUNSLOW AVECHURCHILL AVEBYNG AVECHARLTON BLVDELLERSLIE AVEAVONDALE AVEDREWRY AVELURGAN DRANN DALE DRBURNETT AVEDORIS AVEELMHURST AVEANCONA STLegendStorm Sewer ManholeStorm Sewer Outfall% Storm SewerRoadwayRiver$1 Oil / Grit SeparatorBioretention Unit in the Street R.O.W.Catchment Area 26West Don River0 200 400 600 m 30. Recommended Solution for Area 27Stormwater Quality Improvement MeasuresSource Control MeasuresResidential Roof downspout disconnection Rain barrel Additional trees & bushes Pervious driveway Lot re-grading to grass areaCommercial/Institutional Flat roof top restrictors Catchbasin restrictors in parking lots Additional trees & bushesConveyance ControlMeasuresResidential Filtration/Bioretentionin street right-of-wayCommercial/Institutional Filtration/Bioretentionin street right-of-way Oil/Grit Separators%%%%%%%%%%HOLMES AVE%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%% %%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%BURBANK DR%%%%%%%% %%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%$1$1OLIVE AVEWILFRED AVEBAYVIEW AVEMCKEE AVECITATION DRESTELLE AVEHIGHWAY 401 X EBYNG AVEHIGHWAY 401 X WHILLCREST AVEHOLLYWOOD AVEHAWKSBURY DRDUNVIEW AVEHI MOUNT DRBUNTY LANEREAN DRSPRING GARDEN AVEDORIS AVENORTON AVEDUDLEY AVELegendManholeStorm Sewer Outfall% Storm SewerRoadwayRiver$1 Oil / Grit SeparatorBioretention Unit in the Street R.O.W.Catchment Area 27East Don River0 200 400 600 m%$1 31. Next Steps After tonights meeting, we will gather your comments. We will review the feedback and finalize the recommended solutions. The Project File will be prepared and made available for 30-day publicreview in early 2015. The City will implement the recommended solutions pending completion ofthe Environmental Assessment, future regulatory and budgetary approvals,and coordination with other planned infrastructure projects in these areas.For more information on this study, or to provide your comments or to be addedto the study mailing list, please contact:Josie Franch, Public Consultation Unit55 John Street, Metro Hall, 19th FloorToronto, ON M5V 3C6E-mail: jfranch@toronto.caPhone: 416-338-2859Tty: 416-338-0889Fax: 416-392-2974Website: www.toronto.ca/involved/projects 32. Homeowner Measures to ControlFloodingBackwater Valveon Sanitary Lateral Disconnect foundation drainfrom storm / sanitary sewerand connect to sump pump 33. Steps You Can Take toReduce Flooding Risks Regularly clear eavestroughs anddownspouts of debris Check for and repair leaks or cracks inwalls, floors, windows and your homesfoundations Do not pour grease down your drains Avoid household water use during heavyrainfall If you have window wells, consider usingwindow well covers to prevent water fromentering your home Ensure the ground is sloping away fromyour home's foundation and does notimpact neighbouring properties 34. Steps You Can Take toReduce Flooding Risks Talk to a City-licensed and qualified plumber to discussoptions such as: Installation of a backwater valve on your homes sanitary and/or storm sewer connection Installation of a sump pump and disconnection of yourhomes foundation drains (weeping tiles) from the Cityssewer system Consider installing a battery backup on your sump pump, incase of a power outage Ensure periodic maintenance of the above devices Install soft-surface landscaping (e.g., sodded areas,porous paving, etc.) Clear roadside sewer grates (catch basins) of debris andleaves, if safe to do so. 35. Basement Flooding ProtectionSubsidy ProgramTo assist homeowners, the Cityoffers owners of single-family, duplexand triplex residential homes, afinancial subsidy of up to $3,400 perproperty, to install flood protectiondevices including: Backwater valve (max $1,250), Sump pump (max $1,750), and Disconnection of a homes foundationdrains (weeping tile) from the sewer system(max $400). 36. Downspout Disconnection The City has a bylaw making downspoutdisconnection mandatory, where feasible. The bylaw came into effect on December3, 2013 for properties in basement floodingareas and will come into effect onDecember 3, 2016 for properties outsidebasement flooding and combined sewerservice area. If disconnection is not technically feasibleor would create a hazardous condition,owners can apply to the City for anexemption.Benefits of disconnecting yourdownspout: Helps reduce the amount of stormwaterthat is sent into the sewer system Less stormwater in the system will helpprevent wastewater from backing up intobasements Leads to lower energy costs at wastewatertreatment facilities producing fewergreenhouse gas emissions Helps to replenish and protect thegroundwater table and reduces and delaysstormwater runoffhelping to prevent flashflooding in rivers and streams