Green City... Clean Water
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Transcript of Green City... Clean Water
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Green City… Clean Water
Blending interests of land and water
Howard M. Neukrug, PE
Director, Office of Watersheds
City of Philadelphia
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Philadelphia Water Department Office of Watersheds
• An integrated utility:
• Drinking Water
• Wastewater
• Stormwater
• A new integrated approach:
• Land
• Waterways
• Infrastructure
• Community
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Philadelphia Water Department Office of Watersheds
Combined Sewer Overflow Long Term
Control Plan Update
(CSO LTCPU)
• $1.6 billion, 20 year program
• Upgrade WPCP wet-weather capacity
• Restore and protect all urban streams
• “Green” 1/3rd of the city in 20 years
• Reduce overflow volume by half
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Philadelphia Water Department Office of Watersheds
Weaknesses of the plan:
• Overflows will continue
• Costs will exceed affordable limits
• Upstream – no changes
• The plan relies on strong utility
leadership, partnerships, fiscal
responsibility, innovation and..
• a city that is striving to become a
growing, sustainable city
(we need a sustainable city to have a
sustainable utility and the city needs
this plan to become sustainable)
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Why is Green Infrastructure Critical to Philadelphia?
• Continuing the old approach is unsustainable• Environmental justice• Shrinking cities• Old infrastructure• Large percentage of low income households
• New opportunities• The Greenest City in America• Time of large-scale community renewal• New focus of sustainability, urban waters,
open space, Climate change
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Vacant land becomes the Lower Mill Creek Garden
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A new approachfor SUSTAINBLE Cities!!
MSU Green Roof Research Program (courtesy Old House Journal)
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Innovations
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Depaving Party in Portland, Oregon
Brent Wojahn / The Oregonian
“Breaking stuff is fun!”
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Air Gardens
Image: Todo Design and Das Studio
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Green Roofs around the world
Fukuoka City, Japan. A garden roof with 35,000 plants in low, landscaped terraces that step down into a park.
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New Thinking About Philly Streetscapes
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The History of Water Guns
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Springside School
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Greywater Guerillas
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Urban Farmers: Vacant lots to Markets
Todd Heisler/The New York Times
Photo by Hannah Y Juan/Plantings by displaced people inBogota’s main plaza
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Biomimicry
Janice Konstantinidis
Long as I remember the rain been comin’ down.Clouds of mystry pourin confusion on the ground.Good men through the ages, tryin to find the sun;And I wonder, still I wonder, who’ll stop the rain?
-Creedence Clearwater Revival
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Sustainable Site Design
Courtesy of WRT and PennPraxis
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Planning for land can improve our water
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Planning for our water can improve our land
Civic Vision for the Central Delaware
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The old approach to managing water
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Crooked Streams are a menace to life and crops…
In addition, much of the dirt is loosened and later scoured out by the water …which rushes swiftly through the straightened channel
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There are significant issues ahead of us for improving the water environment
PLUS: LTCPU, 308 letter, state COA, new permits
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Our Approach for investing in CSO reductions
• Keep stormwater out of the sewer
Photo: Black & VeatchPhoto: Black & Veatch
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Our Approach for investing in CSO reductions
• Keep stormwater out of the sewer
• Spend capital dollars above the ground, not below it
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Chicago’s Millennium Park
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Our Approach for investing in CSO reductions
• Keep stormwater out of the sewer
• Spend capital dollars above the ground, not below it
• Restore the urban waterways
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Our Approach for investing in CSO reductions
• Keep stormwater out of the sewer
• Spend capital dollars above the ground, not below it
• Restore the urban waterways
• Recognize that for PWD to be a sustainable utility,
our city must be sustainable
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Percentage of income
•
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Our Approach for investing in CSO reductions
• Keep stormwater out of the sewer
• Spend capital dollars above the ground, not below it
• Restore the urban waterways
• Recognize that for PWD to be a sustainable utility,
our city must be sustainable
• Solve multiple problems at once
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The Public is equally interested in all things water
Streamflow and LivingResources, 12%
Quality of Life, 12%
Flooding, 11%
Stream Corridors, 11%
Stewardship, 11%
Pollutant Loads, 10%
Stream Habitat and AquaticLife, 9%
Water Quality, 9%
Coordination, 8%
Stream Channels and Banks,7%
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Example of How Benefits are Linked
Tree planting
Air quality Cooling Aesthetics Water quality
Energy
savings
Reduced
heat stress
Health
benefits
Energy cost
savings
Reduced GHG
emissions
Enhanced
property values
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Triple Bottom LineTriple Bottom LineEconomic/Environmental/Social BenefitsEconomic/Environmental/Social Benefits
•• CostsCosts
•• Ecological BenefitsEcological Benefits
•• RecreationRecreation
•• Heat Stress MortalityHeat Stress Mortality
•• Energy SavingsEnergy Savings
•• Air QualityAir Quality
•• Carbon FootprintCarbon Footprint
•• AestheticsAesthetics
•• JobsJobs
•• Property ValueProperty Value
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TBL Benefits
• Jobs - 250 people employed annually
• Recreation - 10% more recreation and stream related visits
• Property Values - $390M increase to homes near parks and green areas
• Heat Related Fatalities - 140 fewer
• Premature Deaths - 1-2 avoided / yr
• Asthma Attacks - 20 avoided / yr
• Missed Days of School / Work - 250 fewer / yr
• Carbon Dioxide Emissions - 1.5 Billion lbs avoided/absorbed
• Water Quality and Habitat Improvements - $8.5M
• 45 acres of restored wetlands
• 148 acres of wetlands created
• 11.1 miles of streams restored
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Total Benefits of Green City, Clean Waters over the next 40 years
$-
$500,000,000
$1,000,000,000
$1,500,000,000
$2,000,000,000
$2,500,000,000
1
Reduction in Construction-Related Disruptions (0.2%)
Carbon Footprint Reduction(0.6%)
Energy Savings (1.0%)
Avoided Social Costs fromGreen Jobs (3.7%)
Air Quality (4.6%)
Water Quality and Habitat(14.5%)
Property Value Added (18%)
Recreation (22%)
Heat Stress MortalityReduction (35%)
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Our Approach….
• Capture the first inch of each storm from 1/3rd of the
City’s impervious cover over the next 20 years
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Our Approach….
• Capture the first inch of each storm from 1/3rd of the
City’s impervious cover over the next 20 years
• Achieve continuous improvement
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Green Infrastructure = Continuous Improvement
55%
60%
65%
70%
75%
80%
85%
0 5 10 15 20Time
Performance
Centralized Storage Green Infrastructure
Green/Transmission/Treatment
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Our Approach….
• Capture the first inch of each storm from 1/3rd of the
City’s impervious cover over the next 20 years
• Achieve continuous improvement
• The more change that occurs through normal urban
renewal, the less it will cost
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Philadelphia’s 2006 Stormwater Regs have already reduced runoff by (almost) 1 BG per year
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Combined Sewer Area
Submitted Stormwater
Projects
Highlighted
Stormwater Projects
Philadelphia
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Highlighted Projects
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The Radian
• 39th St & Walnut St
• 12,000 sq ft. Green Roof
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The Radian
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Wexford Science Center
• 37th St & Market St
• 34,000 sq ft Green Roof
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Wexford Science Center
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Drexel Millennium Hall
• 34th St & Race St
• 5,000 sq ft Green Roof
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Drexel Millenium Hall
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Our Approach….
• Capture the first inch of each storm from 1/3rd of the
City’s impervious cover over the next 20 years
• Achieve continuous improvement
• The more change that occurs through normal urban
renewal, the less it will cost
• Use incentives to increase the rate of change
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Create Financial Incentives for Better Land Management
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Gross Area = 13.5 acres
Imperv Area = 11.5 acres
Create Financial Incentives for Better Land Management
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Existing Charge = $ 5,000
New Charge = $ 30,000
Gross Area = 13.5 acres
Imperv Area = 11.5 acres
Top 500Top 500Top 500Top 500 parcels in the combined sewered parcels in the combined sewered parcels in the combined sewered parcels in the combined sewered
area make up area make up area make up area make up 12.3%12.3%12.3%12.3% of total impervious areaof total impervious areaof total impervious areaof total impervious area
Create Financial Incentives for Better Land Management
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Rewarding the Urban Form
Gross Area = 24,000 sq ft
Imperv Area = 24,000 sq ft
Existing Charge = $ 56,500
New Charge = $ 1,400
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Concept Design & Cost Analysis
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Putting it all together
• Green streets
• Green homes
• Green schools
• Green commerce
• Green institutions
• Green alleys
• Green parking
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Overwhelming Public Support
“I love the idea! Please give us a greener Philadelphia. It would make us healthier and happier all around.”
- Response to the question, “Are you in favor of greening?” (PWD “Green Neighborhoods through Green Streets Survey.”)