design ecology a 21st century strategy

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DESIGN ECOLOGY A 21 st Century Strategy

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September 12, 2011

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Page 1: Design ecology   a 21st century strategy

DESIGN

ECOLOGY A 21st Century Strategy

Page 2: Design ecology   a 21st century strategy

• Straight Lines to Low Point Results in Flooding & Low Summer Stream Flows

• Impacts to Habitat – poor water quality

– loss of cover & biodiversity

– low, warm stream flows, no O2

• Impacts to Infrastructure – increased flooding with urbanization

– combined sewer overflows

– exceeded treatment capacity

Existing Infrastructure

Page 3: Design ecology   a 21st century strategy

Impervious Surfaces

Page 4: Design ecology   a 21st century strategy

THE RESULTS HAVE NOT BEEN GOOD

LOST BIODIVERSITY

LOW STREAM FLOWS

INCREASED HEAT

MORE FLOODING

ENERGY IMPACTS

WATER QUALITY

UNSAFE

UNSANITARY

Infrastructure Failures

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Integrated Systems

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Bioswales

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Flow-Through

Planters

Page 15: Design ecology   a 21st century strategy

Living Roofs residential

Page 16: Design ecology   a 21st century strategy

Living Roofs education: College of Marin, Nueva School

Page 17: Design ecology   a 21st century strategy

civic: California Academy of Sciences

Living Roofs

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CAS

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Living Walls

• Water filtration

• Storm-water conveyance

• Storm-water detention

• Reduction of cooling

demand

• Habitat for birds and

butterflies

• Air quality

• Aesthetic benefit

• Mitigate “Urban Heat Island”

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interiors

Living Walls

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Living Walls civic: California Academy of Sciences

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Living Walls Commercial office building: 110 embarcadero, san francisco

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Greywater

BERKELEY ECOHOUSE

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BERKELEY ECOHOUSE

Greywater

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Greywater

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Functional civic art in Seattle

Rainwater Harvesting

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ROOF CATCHMENT CALCULATIONS

(CA) x (R) x (E) x (7.48 gal/cu. ft.) = GALLONS

CA = CATCHMENT AREA (SQ. FT.)

R = RAINFALL (FEET)

E = EFFICIENCY 0.9 = STD ROOF

0.8 = GRAVEL ROOF

0.3 = GREEN ROOF

EASY METHOD (standard roof only):

each 1,000 SF of catchment area

1” of rainfall = 600 gallons

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Infiltration Swales

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Natural Swimming Pools • Natural Swimming Environment uses gravel, plants

and light to keep pool clean

• Chlorine-Free Water is healthy, clean and safe

• Provides Wetland Habitat

• Beautiful Landscape Element

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Natural

Swimming

Pools

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Stormwater Mgt

• Protect water quality

• Reduce impacts to

infrastructure

• Reduce irrigation demand

• Infiltration / recharge

• Biofiltration

Page 33: Design ecology   a 21st century strategy

SEA Streets Seattle

95% Runoff infiltrated to groundwater from 1.1 acre sub-basin

Stormwater Mgt

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Low Impact Development (LID)

Low Impact Development Center

http://www.lowimpactdevelopment.org/

EPA SWPPP Templates

http://cfpub.epa.gov/npdes/stormwater/swppp.cfm#template

EPA LID

http://www.epa.gov/owow/nps/lid/

Roof Catchment Calculator

http://www.bushmantanks.com/WhyWaterTanks/Water%20Catchment.aspx

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California Graywater Standards, Title 24, Part 5, California Administrative Code,

Graywater Systems For Single Family Dwellings

http://www.owue.water.ca.gov/docs/Revised_Graywater_Standards.pdf

Graywater Guide http://www.owue.water.ca.gov/docs/graywater_guide_book.pdf

Oasis Designs

http://www.oasisdesign.net/greywater/index.htm

The Irrigation Association, irrigation information

http://www.irrigation.org

Green Affordable Housing Coalition

www.greenaffordablehousing.org