Water/Energy Sustainability Water/Energy Sustainability Symposium & 2009 GWPC Symposium & 2009 GWPC

Annual FormAnnual FormAnnual FormAnnual Form

G B ildi d GG B ildi d GGreen Building and Green Green Building and Green Cities TrackCities TrackCities TrackCities Track

The Energy Related Promise of Integrated Watershed Management , Green

Infrastructure/LID and Sustainable Designg

EPRI EPRI –– Draft Review ReportDraft Review Report

Ad ancing the Ne Paradigm for Water Infrastr ct reAd ancing the Ne Paradigm for Water Infrastr ct reAdvancing the New Paradigm for Water Infrastructure Advancing the New Paradigm for Water Infrastructure Management: Information and Recommendations for Management: Information and Recommendations for

CommunitiesCommunities

Value the resourceValue the resourceR i ll t t d ll t R i ll t t d ll t Recognize all water as water and all water Recognize all water as water and all water as a resource as a resource

Value the entire water cycleValue the entire water cycle Value the entire water cycle.Value the entire water cycle. Value the resources available in many Value the resources available in many

waters (e.g., nutrients, energy, and waters (e.g., nutrients, energy, and ( g , , gy,( g , , gy,carbon).carbon).

Value the beauty and community that Value the beauty and community that t tt twater can create.water can create.

Aspen Institute: Dialogue on Sustainable Water Aspen Institute: Dialogue on Sustainable Water Infrastructure in the U.S. (Bolger et al. 2009)Infrastructure in the U.S. (Bolger et al. 2009)

Define water infrastructure to include both Define water infrastructure to include both Define water infrastructure to include both Define water infrastructure to include both traditional manmade water and traditional manmade water and wastewater infrastructure, and natural wastewater infrastructure, and natural ,,watershed systems.watershed systems.

Environmental, economic and social Environmental, economic and social ,,considerations should be includedconsiderations should be included

Sustainable management of water Sustainable management of water resources requires the integration of resources requires the integration of drinking water, wastewater and drinking water, wastewater and t t t h d b it t t h d b istormwater on a watershed basisstormwater on a watershed basis

Using Urban Design To Reduce Using Urban Design To Reduce Energy UseEnergy Use (and protect the environment)(and protect the environment)Energy Use Energy Use (and protect the environment)(and protect the environment)

Manage Manage Runoff as ResourceRunoff as ResourceNot as a WasteNot as a WasteNot as a WasteNot as a Waste

•• Drinking water Drinking water

N t bl N t bl •• Non potable usesNon potable uses

•• Ground water rechargeGround water recharge

•• Reduce energy use/GHGReduce energy use/GHG

•• Ecosystem servicesEcosystem servicesEcosyste se v cesEcosyste se v ces

•• Improve quality of LifeImprove quality of Life

Keep Water Out of Keep Water Out of Pipesp

The challenge:Design developments to function like natural systemsatu a syste s

National Science and Technology Council Subcommittee for Buildings Technology R&DNational Science and Technology Council Subcommittee for Buildings Technology R&D

National Science and Technology Council Subcommittee for Buildings Technology R&DNational Science and Technology Council Subcommittee for Buildings Technology R&D

Change Design and O&M Change Design and O&M PhilosophiesPhilosophies

Integrated Systems ApproachIntegrated Systems Approach(Drinking water/Stormwater/Wastewater)(Drinking water/Stormwater/Wastewater)B D i i B D i i C dl t C dlC dl t C dl Lif Lif Base Decisions on a Base Decisions on a Cradle to CradleCradle to Cradle Life Life Cycle Analysis Approach and System Cycle Analysis Approach and System ResiliencyResiliencyes e cyes e cy

Use a Water Balance Operating ModelUse a Water Balance Operating Model Use Regenerative DesignsUse Regenerative Designsg gg g Protect and Create Green Infrastructure Protect and Create Green Infrastructure

(Healthy Watersheds)(Healthy Watersheds)

Change Design and O&M Change Design and O&M Phil hiPhil hiPhilosophiesPhilosophies

Integrate site and building designIntegrate site and building design Integrate site and building designIntegrate site and building design Use decentralized approachesUse decentralized approaches Differentially treat water based on Differentially treat water based on Differentially treat water based on Differentially treat water based on

useuse Use appropriate technologies Use appropriate technologies pp p gpp p g

(simple/natural systems based)(simple/natural systems based) Use environmental management Use environmental management

t t id f db kt t id f db ksystems to provide feedbacksystems to provide feedback Use green designs and prioritize Use green designs and prioritize

compact and infill developmentcompact and infill developmentcompact and infill developmentcompact and infill development

Water System Energy Intensities C V Si ifi lCan Vary Significantly

Savings Vary Depending UponWh Th OWhere They Occur

Saving water at the system level (conveyance, treatment, distribution) saves energy for all water supplied.) gy pp

End-use savings (customer savings) has potential to save even larger amounts of energylarger amounts of energy.

The key to efficiency in water is to address both the water system energy use and the consumer energy use.

Options for householdspIntegration of drinking water, wastewater & stormwater

Irrigation

Energy recovery

F tiliFertilizer

www.urbanwater.org NPK reuse

Ashbolt et al. (2006) In: 2nd IWA Leading-Edge on Sustainability in Water-Limited Environments. WEMS vol 10, IWA Publishing, London.

14

Green Buildings: Water Availability, Delivery, Use, Collection & Quality

The Challenge:• Can advances in water systems

i th ffi iimprove the energy efficiency of green buildings?

Current statusCurrent status• Current water use patterns, practices, and costs stem from

historical precedence and perceptions of water availability • Non s stainable se/management of ater reso rces• Non-sustainable use/management of water resources• Centralized and deteriorating water infrastructure• Increased concerns about water quality

Evolving Emphasis• Holistic view of managing water as a finite and recoverable

natural resourcenatural resource

Why Worry About Water in Green Buildings?

Water is essential to meet “in-building” requirements• Potable uses• Nonpotable uses

The use of water generates wastewaterThe use of water generates wastewaterImpervious surfaces (roofs, driveways, parking lots, etc) serve to channel rainwater• Prevents recharge/replenishment of water resources

(surface and underground)• Generates stormwater• Environmental impacts

Energy is needed to transport and treat water(drinking water wastewater stormwater)(drinking water, wastewater, stormwater)

How Does Water Contribute to Carbon / GHG “Footprint” of Green Buildings?

Energy to deliver water• Transport water from source to point of use• Pressurize water distribution systemsEnergy to collect wastewater and stormwater (site runoff)Energy for treatment• Drinking (potable) water• Wastewater• StormwaterEnergy for infrastructure, operation, maintenance, & rehabilitationEnergy for “in-building” water heating & cooling

Embodied energy in materials (pumps, pipes, etc.)

National Science and Technology Council Subcommittee for Buildings Technology R&DNational Science and Technology Council Subcommittee for Buildings Technology R&D

gy (p p , p p , )

Energy & GHG Savings Opportunities

Reduce energy for transport, treatment, and delivery of water• Recover, reclaim, & reuse wastewater,

a/c condensates & stormwater• Recover and use rainwater• On-site/decentralized treatment systems W t ti i tiWater use optimization• Less water lower energy use• L t l t t• Less water less wastewater

Goals & Opportunities for Sustainable (Green) Water Systems

Goals• Restore/maintain hydrologic cycley g y

• Balance water availability & water use• Restore & enhance water quality

• Water and ecosystem sustainability• Prevent/manage contamination

R d t ib ti f t t t f t i t f• Reduce contribution of water systems to footprint of carbon & other greenhouse gases

Opportunities• Water delivery (distribution systems)y ( y )

• Differentiate uses & quality• Tailored treatment for specific uses

• Efficient “in-building” water use• Collection/treatment systems toCollection/treatment systems to

harvest/recover rainwater, stormwater, wastewater, & air conditioner condensates

• Low impact development• Price of water—align with “true” costs

Opportunities to Evolve Towards Sustainable Water Systems

More efficient use of “in-building” water• Appliances, low-flow devices• Separation of potable (drinking water,

cleaning, washing, direct contact) and non-potable applications

• Self-composting and low flow toiletsC ll t d i tCollect and recover rainwater• Alternative source of water• Reduce burden on water infrastructure

( aste ater/storm ater collection)(wastewater/stormwater collection)Reclaim wastewater• On-site or decentralized treatment

S f t f t bl• Source of water for non-potable applications (fire protection, toilets, landscaping, cooling water, recharge groundwater) g ou d ate )

• Reduce burden on water infrastructure

National Science and Technology Council Subcommittee for Buildings Technology R&DNational Science and Technology Council Subcommittee for Buildings Technology R&D

Advantages to Recovery & (Re)Use of Rain Water & Reclaimed Water

Preservation of higher quality water sources for potable waterWater is available in close proximity to where water is needed• Avoid costs and energy of collecting, transporting,

and (re)distributing• Quality is consistent

Resiliency of infrastructure and t t t t it titreatment systems–emergency situationsTreatment can be tailored to specific use• In-building uses (toilet flushing, fire protection)

( )• Exterior uses (landscape, cooling water)• Off-site (irrigation, industry, commercial

operations, car washing, cooling water, etc.)• Replenishment/augmentation of surface water p g

and ground water

Efficient “In-Building” Use of Water

Encourage implementation of • Water-saving and recycling appliancesWater saving and recycling appliances• Low-flow fixtures• On-demand hot water systems• “I b ildi ” (t il t fl hi t )• “In-building” reuse (toilet flushing, etc.)

Designs and technologies for whole-building innovations such as • Optimized systems for high quality potable water• Non-water fire suppression• Hot water distribution systemsHot water distribution systems • Building heating/cooling systems • Centralized automatic monitoring systems for

managing demand to reduce water consumptionmanaging demand to reduce water consumption • Remote sensing and remote management

D Y Fl h??*D Y Fl h??*Do You Flush??*Do You Flush??* Do you know how many times you flush the toilet in your

lifetime?

140 000 times!!!140,000 times!!!

280,000 gallons over your lifetime.

A Water Sense toilet can reduce water use by 20%

Savings Nationwide = 640 billion gallons of water per year (equal to more than two weeks of flow over Niagara

Falls!)

• *EPA Water Sense- http://www.epa.gov/watersense

Efficient “In-Building and Site” Use of WaterGoals • Manage precipitation as a resource• Manage pollutant loadings and runoff volumes andManage pollutant loadings and runoff volumes and

rates

Approaches• Design environmentally sound sites• Design environmentally sound sites • Retrofit built environment to better manage runoff• Integrate building and site designs• Use soil-based vegetative infiltration practices.• Green roofs and green walls• Bio-infiltration systemsy• Permeable pavements• Cisterns• Urban forestry• Urban forestry

Cool RoofingCool Roofing -- BenefitsBenefitsCool Roofing Cool Roofing BenefitsBenefitsNet Energy Savings from Cool RoofsNet Energy Savings from Cool Roofs

Source: LBNL Report 39433Source: LBNL Report 39433

NATIONAL SCIENCE AND TECHNOLOGY COUNCIL

Implementation Plan for Net-Zero, High Performance Green Buildings

A F d l I t R&D PlA Federal Interagency R&D PlanSubcommittee on Buildings Technology

Research and Development

February 27, 2009

Goal 1. Develop the enabling measurement science to achieve net-zero energy, sustainable,high-performance building technologies.Goal 2. Develop net-zero energy building technologies and strategiesGoal 2. Develop net zero energy building technologies and strategies.Goal 3. Develop the scientific and technical bases for significant reductions in water use and improved rainwater retention.Goal 4 Develop processes protocols and products for buildingGoal 4. Develop processes, protocols, and products for building materials that minimize resource utilization, waste, and life cycle environmental impacts.Goal 5 Develop the knowledge and associated energy efficiencyGoal 5. Develop the knowledge and associated energy efficiency technologies and practices needed to promote occupant health, comfort, and productivity.Goal 6 Enable technology transfer for net zero energy highGoal 6. Enable technology transfer for net-zero energy, high-performance green buildings.

Buildings Technology Research and Development VisionDevelopment Vision

Design new buildings and retrofits of existing buildings that over the life cycle:

● Produce as much energy as they consume (net-zero energy) and significantly reduce GHGs

● Double the service life of building materials, products, and systems and minimize life cycle impacts

● Halve the use of domestic water (e.g., to 50 gal/day/person or less) maximize water recycling and gal/day/person or less), maximize water recycling and rainwater harvesting, and minimize stormwater runoff

● Achieve breakthrough improvements in indoor occupant health, prod cti it and comfortproductivity, and comfort

Green Infrastructure BenefitsGreen Infrastructure Benefits

Case Study ExamplesCase Study Examples

Washington, D.C. Washington, D.C. –– Casey Trees Casey Trees d (Ph 1 A il 200 )d (Ph 1 A il 200 )study (Phase 1, April 2007)study (Phase 1, April 2007)

Green roofs of 195 millionGreen roofs of 195 million Green roofs of 195 million Green roofs of 195 million sq. ft., tree coverage of sq. ft., tree coverage of 57% of the city, and tree 57% of the city, and tree boxes of at least 6 X 20boxes of at least 6 X 20boxes of at least 6 X 20 boxes of at least 6 X 20 ft. together would:ft. together would: Prevent 1.2 billion gallons Prevent 1.2 billion gallons

of stormwater from enteringof stormwater from enteringof stormwater from entering of stormwater from entering the sewer systemthe sewer system

Reduce CSO volume by Reduce CSO volume by 22% and frequency by 22% and frequency by q y yq y y6.7%6.7%

Reduce stormwater volume Reduce stormwater volume by 10%by 10%

Photo courtesy of CaseyTrees, Washington, DC

Provide CSO volume Provide CSO volume reductions of more than reductions of more than 20% for some sewersheds20% for some sewersheds

Seattle, Washington Seattle, Washington King Street CenterKing Street CenterKing Street CenterKing Street Center

RainwaterRainwaterRainwater Rainwater HarvestingHarvesting

More than 16 000 gallonsMore than 16 000 gallons More than 16,000 gallons More than 16,000 gallons of storage at 327,000 ftof storage at 327,000 ft22King Street Center used King Street Center used ggfor toilets and irrigation. for toilets and irrigation.

Provides 60% (1.4 million Provides 60% (1.4 million gallons) of toilet flushing gallons) of toilet flushing water annually.water annually.

King Street Center.

Portland, OregonPortland, Oregon, g, g City code requires onCity code requires on--site site

stormwater managementstormwater managementstormwater management stormwater management for new and refor new and re--development.development.pp

Subsidized downspout Subsidized downspout disconnection program.disconnection program. 45,000 participating 45,000 participating

households.households.Infiltrates 1 billionInfiltrates 1 billion Infiltrates 1 billion Infiltrates 1 billion gallons of rainwater gallons of rainwater annually.annually.

V t t d Pl t t P tl d St tyy

Vegetated Planter at Portland State University. Photo courtesy of Martina

Keefe.

Philadelphia, PA Philadelphia, PA Clean WaterClean Water –– Green City Initiative (Before)Green City Initiative (Before)Clean Water Clean Water Green City Initiative (Before)Green City Initiative (Before)

Philadelphia, PA (cont.)Philadelphia, PA (cont.)Clean WaterClean Water –– Green City Initiative (After)Green City Initiative (After)Clean Water Clean Water Green City Initiative (After)Green City Initiative (After)

A Clear Blue FutureA Clear Blue FutureA Clear Blue FutureA Clear Blue Future

NRDC T h i l R tNRDC T h i l R tNRDC Technical ReportNRDC Technical ReportAugust 2009August 2009gg

How Greening California Cities Can How Greening California Cities Can ggaddress Water Resources and Climate address Water Resources and Climate Challenges in the 21st CenturyChallenges in the 21st Centuryg yg y

A Clear Blue FutureA Clear Blue FutureA Clear Blue FutureA Clear Blue Future

1 22 00 h f l i i1 22 00 h f l i i 1,225,500 megawatt hours of electricity 1,225,500 megawatt hours of electricity savings that can be achieved each year savings that can be achieved each year th h f LID tith h f LID tithrough use of LID practices.through use of LID practices.

Represents enough energy to power Represents enough energy to power more than 102,000 single family homes for more than 102,000 single family homes for one full year.one full year.

Emissions reductions of 535,500 metric Emissions reductions of 535,500 metric tons of CO2 each year = taking more than tons of CO2 each year = taking more than y gy g97,000 cars off the road 97,000 cars off the road

Amended California Greywater Amended California Greywater RegulationsRegulations 9/9/099/9/09Regulations Regulations 9/9/099/9/09

It is now legal for Californians to install simple It is now legal for Californians to install simple laundry and singlelaundry and single--fixture systems without afixture systems without alaundry and singlelaundry and single fixture systems without a fixture systems without a permit.permit.

Licensed professionals can install systems for Licensed professionals can install systems for homeowners instead of homeowners attempting homeowners instead of homeowners attempting to install a system themselves to get around theto install a system themselves to get around theto install a system themselves to get around the to install a system themselves to get around the standards.standards.

Graywater accounts for 50 percent to 80 percent Graywater accounts for 50 percent to 80 percent of residential wastewater.of residential wastewater.

A Triple Bottom Line Assessment ofA Triple Bottom Line Assessment ofT diti l d G I f t tT diti l d G I f t tTraditional and Green InfrastructureTraditional and Green InfrastructureOptions for Controlling CSO EventsOptions for Controlling CSO Events

in Philadelphia's Watershedsin Philadelphia's Watershedsin Philadelphia s Watershedsin Philadelphia s WatershedsFinal ReportFinal Report

Under the 50% LID option, analysis indicates a Under the 50% LID option, analysis indicates a i h 40i h 40 l il inet energy savings over the 40net energy savings over the 40--year planning year planning

period of nearly 370 million kilowatt hours (kWh) period of nearly 370 million kilowatt hours (kWh) of electricityof electricityof electricityof electricity

Prepared by Stratus ConsultingPrepared by Stratus Consultingp y gp y g

Energy Independence and Security Energy Independence and Security A f 200A f 200Act of 2007Act of 2007

“Sec. 438. Storm Water Runoff“Sec. 438. Storm Water Runoff Sec. 438. Storm Water Runoff Sec. 438. Storm Water Runoff Requirements for Federal Development Requirements for Federal Development Projects. Projects. The The sponsorsponsor of any of any development or development or redevelopmentredevelopment project involving a Federal project involving a Federal facility with a footprint that exceeds 5,000 square facility with a footprint that exceeds 5,000 square f t h ll it l i d i t tif t h ll it l i d i t tifeet shall use site planning, design, construction, feet shall use site planning, design, construction, and maintenance strategies for the property to and maintenance strategies for the property to maintain or restore to themaintain or restore to the maximum extentmaximum extentmaintain or restore, to the maintain or restore, to the maximum extent maximum extent technically feasibletechnically feasible, the , the predevelopment predevelopment hydrologyhydrology of the property with regard to the of the property with regard to the y gyy gy p p y gp p y gtemperature, rate, volume, and duration of temperature, rate, volume, and duration of flowflow.”.”

"We've got to do things smarter throughout the Air Force. And this is one of those simple ways that we can conserve energy and save money." Randy Hawke, Facilities Excellence Architect

Equipment is Equipment is unloaded to unloaded to

construct a green construct a green ggroof at Peterson roof at Peterson Air Force Base.Air Force Base.

(USAF, Steve Brady)(USAF, Steve Brady)

Botanic Garden ConservatoryUse: Gallons/Yr

Fountains1%Botanic Garden Conservatory WaterUse/

Irrigation 5,385,600Domestic  4,223,888Fountains 99 534 Irrigation

Domestic 44%

Fountains 99,534Total 9,709,022

Irrigation55%

Botanic Garden Administration Building/Use: Gallons/Yr

Irrigation 2,086,920Domestic  8,544

Domestic 0% Bartholdi 

Fountain1%

BG Administration Water Use 

Bartholdi Fountain 23,400Total 2,118,864

IrrigationIrrigation99%

RoofRunoff vs Water Usage (Gallons)

1 200 000

1,400,000 

Roof Runoff vs. Water Usage (Gallons)

800,000 

1,000,000 

1,200,000 

ons

400,000 

600,000 Gallo

‐

200,000 

CisternsCisterns –– Basic DesignBasic DesignCisterns Cisterns Basic DesignBasic Design

Conventional Harvesting SystemConventional Harvesting System

Roof Runoff

Non-potable Use

Irrigation

O flOverflow

Stream

Advanced Harvesting SystemAdvanced Harvesting System

Roof Runoff

Non-potable Use

Irrigation

O flOverflow

Stream

Controlled Discharge

Ambient Information SystemsAmbient Information Systems

GoalGoal Information Conveyed to IndividualInformation Conveyed to Individual Target OutcomesTarget Outcomes

Reduce Consumptive Reduce Consumptive Use WasteUse Waste

Individual feedback on instantaneous and/or monthly cumulative water use, Individual feedback on instantaneous and/or monthly cumulative water use, water pricing data, and/or system demand. Information regarding water pricing data, and/or system demand. Information regarding irrigation consumption best practice based on weather and/or climatic irrigation consumption best practice based on weather and/or climatic

Reductions in consumptive use and changes in timing Reductions in consumptive use and changes in timing of use as a result of feedback and awareness of use as a result of feedback and awareness of impacts.of impacts.

data. Indicating and alerting individuals to changes in local data. Indicating and alerting individuals to changes in local regulatory actions relative to consumptive use such as irrigation bans. regulatory actions relative to consumptive use such as irrigation bans.

Optimize Storm Water Optimize Storm Water Control UsageControl Usage

Information on how to optimize use of storm water controls that require Information on how to optimize use of storm water controls that require individual participation (e.g., rain barrel, blue roof, or cistern individual participation (e.g., rain barrel, blue roof, or cistern management).management).

OptimalOptimal useuse ofof RainRain BarrelsBarrels oror otherother controlscontrols whichwhichrequirerequire operatoroperator controlcontrol andand decisiondecision makingmaking(e(e..gg..,, draindrain oror leaveleave full)full) forfor volumevolume controlcontrol ininurbanizedurbanized areasareasurbanizedurbanized areasareas..

Reduce CSO ImpactsReduce CSO Impacts Information regarding receiving water quality and CSO status in combined Information regarding receiving water quality and CSO status in combined sewer areas.sewer areas.

Consumptive use changes based on direct impacts on Consumptive use changes based on direct impacts on receiving waters. These could include but are receiving waters. These could include but are not limited to timing or other decisions about not limited to timing or other decisions about consumptive use and decisions about waste consumptive use and decisions about waste water quality (e.g., what do I send down the water quality (e.g., what do I send down the d i i i )d i i i )drain at a given time).drain at a given time).

Tools Approaches and TechniquesTools Approaches and TechniquesTools, Approaches and TechniquesTools, Approaches and Techniques

The Water Environment Research The Water Environment Research Foundation (WERF) Spreadsheet Tool Foundation (WERF) Spreadsheet Tool

For Estimating Stormwater BMP For Estimating Stormwater BMP LifeLife--Cycle CostsCycle Costs

Next Steps: Next Steps: U S i I f P liU S i I f P liUse Science to Inform PolicyUse Science to Inform Policy

Conduct energy analysesConduct energy analysesB fit f i t h ti dB fit f i t h ti d Benefits of rainwater harvesting and useBenefits of rainwater harvesting and use

Benefits of GI/LID in reducing energy used to Benefits of GI/LID in reducing energy used to manage stormwater and CSOsmanage stormwater and CSOsmanage stormwater and CSOsmanage stormwater and CSOs

Benefits of GI/LID in reducing energy use for Benefits of GI/LID in reducing energy use for drinking water treatment and conveyancedrinking water treatment and conveyancedrinking water treatment and conveyance drinking water treatment and conveyance

Benefits of GI/LID in reducing HVAC energy Benefits of GI/LID in reducing HVAC energy use (insulation evaporative cooling shading)use (insulation evaporative cooling shading)use (insulation, evaporative cooling, shading)use (insulation, evaporative cooling, shading)

Next Steps:Next Steps:U S i t I f P liU S i t I f P liUse Science to Inform PolicyUse Science to Inform Policy

Quantify:Quantify: benefits of integrated water resource benefits of integrated water resource gg

managementmanagement externalities of grey vs green infrastructureexternalities of grey vs green infrastructure

(including embodied energy)(including embodied energy) benefits of differential water use based on benefits of differential water use based on

energy used for treatment and conveyanceenergy used for treatment and conveyanceenergy used for treatment and conveyanceenergy used for treatment and conveyance•• greywatergreywater•• runoffrunoff•• runoffrunoff•• reclaimed wastewaterreclaimed wastewater

Critically Examine Market Place Critically Examine Market Place D iD i Q tif P fQ tif P fDrivers Drivers –– Quantify PerformanceQuantify Performance

ofof Green Building StandardsGreen Building Standardsgg

LEED (USGBC)LEED (USGBC) Sustainable Site Initiative (ASLA et al)Sustainable Site Initiative (ASLA et al) Sustainable Site Initiative (ASLA et al)Sustainable Site Initiative (ASLA et al)NAHB/ANSI/ICCNAHB/ANSI/ICCGreen GlobesGreen GlobesGreen GlobesGreen Globes ASHRAEASHRAE ASTMASTM

Robert GooRobert GooRobert GooRobert GooOffice of Water, USEPAOffice of Water, USEPA

202202 6666 12011201202202--566566--12011201goo.robert@epa.govgoo.robert@epa.govg @ p gg @ p g