Going Green Begins By Thinking Blue: Rainwater Strategies for Cermak Road
ENGINEERING IN RAINWATER MANAGEMENT · 2020. 2. 20. · ENGINEERING IN RAINWATER MANAGEMENT BEST...
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ENGINEERING IN RAINWATER MANAGEMENT
BEST PRACTICES FOR A SUSTAINABLE RAINWATER MANAGEMENT
Green Tech 2012 GREEN MARINE / ALLIANCE VERTE
30 mai 2012
GÉNIE CIVIL & DÉVELOPPEMENT DURABLE CIVIL ENGINEERING & SUSTAINABLE DESIGN 1751, rue Richardson, bureau 8.230 Montréal (Québec) H3K 1G6 T. (514) 759-‐4792 [email protected] www.vinciconsultants.com
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TAB
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I-STORMWATER MANAGEMENT AS SUPPORT BETWEEN CITIES AND HARBORS II-STORMWATER MANAGEMENT ISSUES IIII-SUGGESTED SOLUTIONS FOR A SUSTAINABLE MANAGEMENT OF RAINWATER IV-ECONOMIC, ENVIRONMENTAL AND SOCIAL BENEFITS
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BEST PRACTICES FOR A SUSTAINABLE RAINWATER MANAGEMENT
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I-STORMWATER MANAGEMENT AS SUPPORT BETWEEN CITIES AND HARBORS
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PORT DE COMMERCE DE LORIENT (France)
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PORT OF MONTREAL
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PORT OF VANCOUVER / PORT OF NEW YORK – NEW JERSEY
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PORT DE COMMERCE DE CALAIS (France)
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HARBOR DEVELOPMENT
ISSUES
Polluting activities (dust, sounds, waste…)
Heritage Industrial
Vacancy lands
Trafic jam
Lack of coastal access / fenced sites.
Aging sites
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ISSUES AND OPPORTUNITIES ABOUT WATER MANAGEMENT
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ISSUES
External activities : hulls
External storages : minerals, feeds supply…
Large impervious surfaces
Polluted soils by former activities
Obsolescence of sewer and hard management phasing.
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II- STORMWATER MANAGEMENT ISSUES
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URBANIZATION HAS A SIGNIFICANT EFFECT ON THE WATER CYCLE
NATURAL CONTEXT
URBAN CONTEXT
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URBANIZATION AND WATER CYCLE
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URBANIZATION EFFECT ON RUNOFF WATER FLOW
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OVERFLOWED NETWORKS AFTER AN INTENSE RAIN EVENT
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9 Stationnement vert
QUALITATIVES ISSUES
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CONTAMINANTS IN STORMWATER AND THEIR ORIGINS
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RUNOFFWATER QUALITY BY SITE ACTIVITY
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HEATING ISLANDS ISSUES
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MIXED WATERS
RIVER
TREATMENT
SPRING WATER 470 L / person/ day
RAIN
50% OF NON SPRING
WATER NEEDS
WASTE WATERS BMP:
Holding and
treatment
WATER CYCLE IN URBANIZED AREA
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III-SUGGESTED SOLUTIONS FOR A SUSTAINABLE MANAGEMENT OF RAINWATER
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MÉT
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METHOD OF WORK
•Analysis of existing site
-Infiltration in groundwater
-Combined or separated
sewer
-Soil decontamination
•Phasing for the
rehabilitation of the site
•Multidisciplinary
teamwork
•Ranking of streets
network
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•MDDEP : Article 32 and new guide for stormwater management
- Encourage the reuse or re infiltration of rainwater
- Demonstrate that after development the flow rate
is not higher than that before the development for
a 2 to100 year frequency rain.
•MUNICIPAL BYLAW (MONTRÉAL) : For any impervious surface greater than 1 000m2 (excluding
streets), is required retention to limit the flow discharged to 35 liters per second per hectare for a 25-year frequency rain
•LEED ND : Net zero outflow for a certain percentage of the annual
volume of rain
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STANDARDS REFERENCES
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• ENVIRONNEMENTAL POLICIES AND LABELS : Net zero outflow for a certain percentage of the annual volume of rain
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EXEMPLES DE TOITURES VÉGÉTALISÉES
Photo : Greenroofs.com Institut de gériatrie de l’Université de Montréal
Toit vert rue Jeanne Mance à Montréal
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DÉBRANCHEMENT DES GOUTTIÈRES
Abbaye cistercienne de st jean de Matha
La Tohu
MEC Longueil
Centre sportif Gatineau
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EXEMPLES DE NOUES PAYSAGÈRES
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COUPES DE RUE TYPIQUES AVEC NOUES
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EXEMPLES DE BIORETENTION
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EXEMPLES DE BIORETENTION
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EXEMPLES DE CANIVEAUX
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COUPES DE RUE TYPIQUES AVEC CANIVEAU
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EXAMPLES OF MULTIFUNCTIONAL DRY PONDS
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EXAMPLES OF FLOODED ACCOMODATIONS
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STORMCEPTOR
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TANKS FOR REUSE
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BASIN PERMANENT WATER
LEVEL
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IV- ECONOMIC, ENVIRONMENTAL AND SOCIAL BENEFITS
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ECONOMIC BENEFITS
REC
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DAT
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S
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ECONOMIC BENEFITS
REC
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DAT
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S
CONVENTIONAL DEVELOPMENT
COST BMP COST
COST DIFFERENCE
PERCENT DIFFERENCE
MEC, Longueuil 70 676,00 $
42402.00 $
28274.00 $
40%
MRC BM, Cowansville
138 787,00 $
56735.00 $
82 052.00 $
59%
Stationnement public,
Montréal 1 529 676,00 $
853716.00 $
675 960.00 $
44%
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ENVIRONMENTAL BENEFITS
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1- Erosion control of construction sites
2- Treatment of first flush (rain under
25mm)
3- Reuse of treated storm water for
non potable water needs
4- Detention of 100 years frequency
rain
5- Reduce heat island effect
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Green Tech 2012 38
ISSUES OPPORTUNITIES
Polluting activities (dust, sounds, waste…)
Measures to minimize impacts and secure acitivites.
Heritage Industrial Conservation measures and enhancement.
Fallow lands / vacancy lands Watch property and phasing of rehabilitation
Trafic jam Organisation of traffic and integration of the alternative ways of circulation.
Lack of coastal access / fenced sites. Make accessible in some locations : coastal visibility and harbor activities.
Aging sites Bringing mixed activities : businesses, offices, accommodations ...
ECONOMIC AND SOCIAL BENEFITS
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Merci ! Thank you!
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