STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS James Royce, LEED AP, GRP designLab ARCHITECTS Brownfields Conference 2011 Developing Metrics of Sustainability International Fund For Animal Welfare Yarmouth Port, Massachusetts
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS Outline IFAW Case Study 1. Metrics of Sustainability 1.1 Metrics for Landscape Assessment 1.2 Project Overview 1.3 Applied Metrics 3. Other Aspects of Sustainable Design 4. Next Steps and Future Considerations
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS Developing Metrics for Landscape Assessment · LEED – Sustainable Sites · Sustainable Sites Initiative · As designers, once we have applied these principles to design and constructed them, how do we measure their success and actual benefits? · How can these be applied to improve sustainable solutions? · How do we apply them appropriately for each project and site? · Sustainability ENVIRONMENTAL – ECONOMIC – SOCIAL/HUMAN/COMMUNITY · “What do I get out of it?”
LEED – SUSTAINABLE SITES INDEX
SUSTAINABLE SITES INITIATIVE- ECOSYSTEM SERVICES
SUSTAINABLE SITES INITIATIVE- GUIDING PRINCIPLES OF A SUSTAINABLE SITE
SUSTAINABLE SITES INITIATIVE- INDEX
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS International Fund for Animal Welfare (IFAW) Project Overview: Goals, Context and History: · Represent identity/ environmental ethic and commitment of the organization · Cost effective use of resources as a donor driven organization · Environmental education opportunities on site · Durable, low maintenance landscape solutions · Sustainability : Pragmatic, appropriate, integrated
Project Site: · 5 acre site former light industrial use · Environmentally sensitive area · Heavily impacted soils · Within Zone II Groundwater Recharge · Open space and protected water body · High profile site · Regional, state and local permitting
Site Planning and Building Massing Studies
STORMWATER MANAGEMENT CONCEPT
STORMWATER MANAGEMENT
2.2 Applied Metrics 2.2.1Building Energy Use Design vs. Actual performance 2.2.2Site Development Greenfield vs. Brownfield 2.3 Site Restoration and Open Space 2.3.1Native planting and meadow vs. ‘traditional lawn’ 2.3.2Open Space Restoration 2.3.3Water usage and conservation Site maintenance and operating costs 2.4 Stormwater Management 2.4.1Permitting requirements Infrastructure costs 2.4.3Water quantity and quality
Developing Metrics for Landscape Assessment · GREENFIELD VS. BROWNFIELD DEVELOPMENT · IFAW 2000 · 5 acres greenfield into conservation · Expanded contiguous open space parcels · Groundwater protection in aquifer protection zone · Protect habitat & biodiversity IFAW 2005 · 5 acres brownfield cleanup & restoration · Cost savings on open brownfield site offset by remediation costs ·
BUILDING ENERGY USE · SITE PLANNING AND BUILDING MASSING · BETTER SITE EFFICIENCY AND CIRCULATION · ENABLED PASSIVE SOLAR · INCREASED OPEN SPACE AND HABITAT ·
COMPARISON TO CONVENTIONAL DESIGN 85,000SF LAWN
Conventional Lawn 85,000SF Import loam – lawn $15 $22,500 Earthwork - fill3,000CY $5 $15,000 Import loam – planting $15 $22,500 $0.25$20,000 $1.50$127,500 Fertilizer $0.15$ 3,825 $211,325 Maintenance – annual 85,000sf/ 6,000sf/hr mowing = 12-14hrs x $50/hr =$650 x 25 weeks = $16,250 annually Native planting, meadow & on site soil re-use 85,000SF On site soils $3-5$18,000 (fill and planting media) Import $15 $22,500 Grass seed base $0.25$20,000 Meadow $0.25$20,000 Hand watering$ 8,000 (4hrs x 2x/wk x 20wks x $50/hr) Organic pesticide $0.15$ 7,650 Hand weeding (3 days x 2x/yr x $100,950 Maintenance – annual 85,000sf/ 6,000sf/hr mowing = 12-14hrs x $50/hr =$650 x 2-4x/yr = $2,500 annually Additional soil export for remediation (unsuitable for re-use) 1,600CY = 2,643 = $60,000
Conventional Drainage Infrastructure without Implementation of Low Impact Design(LID) One(1) leaching catch basin/ 0.25 acre paved area (1/10,000sf) Paved area = 60,000sf / 10,000sf = 6 leaching catch basins x $2,500 = $15,000 - $20,000 Piping, trenching, backfill (500lf x $25/lf)=$12,500 – 15,000 Leaching/ infiltration chambers/ structures$10,000 – 15,000 $ 37,500 - $50,000 Within Zone II Aquifer Protection District Infiltration of all runoff on site – aquifer recharge Vegetation for removal of nitrogen Plant uptake of phosphorus Storage capacity in basin and soil profiles Removal of TSS(Total Suspended Solids) – required Exemption from permitting review with use of LID measures (Priceless!!)
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS 3. Other Aspects of Sustainable Design 3.2 Stormwater Management Elements as Landscape Amenities 3.3 Environmental Education 3.5 Contributions to Daylighting Goals and Building Efficiency 3.6 Microclimate and Extending Usability of Exterior Spaces 3.7 Projecting Image and Ethics of Organization 3.8 Attracting potential investors and donors 3.9 Employee productivity, health, satisfaction, retention 3.10 Marketing Opportunities
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS Overall Project Achievements · Represent ethics, image and commitment of IFAW · Accommodate site program and support building/ daylighting objectives · Reconnect site visually and spatially to adjacent conservation areas · Improved water quality and protection in aquifer district · Restore open space and provide wildlife habitat · Durable, low maintenance + sustainable native landscape · Promote green development, create local jobs, investment in community
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS Metrics of Sustainable Design · Energy Use Reduction in Building Systems · Savings on drainage infrastructure = Investment in Landscape · Improved water quality + increased groundwater recharge · Earthwork: reduced soil export + manufactured soils 6,000CY each · Reduced landscape maintenance and irrigation costs · Reduced energy costs for efficient, low level exterior lighting
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS Next Steps and Future Considerations · PLANNING FOR MONITORING AND ASSESSMENT IN FUTURE PROJECTS · DEVELOP EMPIRICAL RESULTS · INCORPORATE MEASUREMENT IN DESIGN PHASE · INCLUDE FEES FOR MEASUREMENT IN POST-CONSTRUCTION SERVICES · CONSIDER PRO-BONO SERVICES FOR MONITORING · EXPLORE RESEARCH GRANTS AND/OR ENGAGE INSITUTIONS/UNIVERSITIES
STEPHEN STIMSON ASSOCIATES LANDSCAPE ARCHITECTS James Royce, LEED AP, GRP designLab ARCHITECTS Brownfields Conference 2011 Developing Metrics of Sustainability International Fund For Animal Welfare Yarmouth Port, Massachusetts