Cedar Grove Composting

Cedar Grove Cedar Grove CompostingComposting

A bit of history…

City of Seattle and King County Lead the Way!City of Seattle and King County Lead the Way!19891989City of Seattle, green wasteCity of Seattle, green wasteProjected tonnage: 12,000Projected tonnage: 12,000

Tonnage: Tonnage: 48,00048,000

19901990Tonnage: Tonnage: 100,000100,000Added King Co suburban citiesAdded King Co suburban citiesunincorporated King Counincorporated King Co

20072007Tonnage: Tonnage: 250,000250,000

Great job, Seattle and King County cities- Great job, Seattle and King County cities- Recycling works! Recycling works!

0

50,000

100,000

150,000

200,000

250,000

Tonnage

1 2 3

1989, 1990,2007

Growth Since 1989

0

100000

200000

300000

400000

500000

Tonnage

1 2 3 4 5

1990-2012

Future Growth with Food Scraps and Other Organics

Cedar Grove has processed over 4 million tons diverted from landfilling since 1989!

150,000 tons annually food and commercial organics!

Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide

YearYear ActionAction ResultResult

1989-1989-19951995

Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow

Volumes beyond Volumes beyond U.S. technologyU.S. technology

Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide

YearYear ActionAction ResultResult

1989-1989-19951995

Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow

Volumes beyond Volumes beyond U.S. technologyU.S. technology

1996-1996-19991999

European model: European model: Added negative air, Added negative air, EMSEMS

Significant Significant improvementimprovement

Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide

YearYear ActionAction ResultResult

1989-1989-19951995

Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow

Volumes beyond Volumes beyond U.S. technologyU.S. technology

1996-1996-19991999

European model: Added European model: Added negative air, EMSnegative air, EMS

Significant Significant improvementimprovement

2000-2000-20042004

Post-consumer Post-consumer food/commingled food/commingled yard/foodyard/food

In-vessel In-vessel system/Gore™ system/Gore™ Cover SystemCover System

Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide

YearYear ActionAction ResultResult

1989-1989-19951995

Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow

Volumes beyond Volumes beyond U.S. technologyU.S. technology

1996-1996-19991999

European model: Added European model: Added negative air, EMSnegative air, EMS

Significant Significant improvementimprovement

2000-2000-20042004

Post-consumer Post-consumer food/commingled food/commingled yard/foodyard/food

In-vessel In-vessel system/Gore™ system/Gore™ Cover SystemCover System

2004-2004-20082008

Everett build-outEverett build-out Increased capacity Increased capacity for regional growthfor regional growth

199019972002

Today

-Everett-228,000 tons/year.-Maple Valley- 195,000 tons/year-Regional permitted capacity 423,000 tons/year.-Additional long-term capacity available

MAKING COMPOST!

Phase IMoisture: 60%Temp: 165 F

Time: 28 days

Phase IIMoisture: 55%Temp: 152 F

Time: 14 daysPhase III

Moisture: 50%Temp-150 F

Settles- 120 FTime: 14 days

FINISHED COMPOST

Cedar Grove Focus on Cedar Grove Focus on Education/Product Quality Education/Product Quality

Regulations and standardsRegulations and standards Uses of compost Uses of compost

Improve soil qualityImprove soil quality Conserve waterConserve water Reduce pesticides and Reduce pesticides and

fertilizer usagefertilizer usage Comprehensive standardsComprehensive standards

Products-Landscape and GardeningProducts-Landscape and Gardening

WSDA registered WSDA registered organic materialorganic material

Increase plant size, Increase plant size, remove C02 from airremove C02 from air

Sequester carbon, return Sequester carbon, return to soilto soil

For almost 20 years…For almost 20 years… Processed :Processed :4 million tons4 million tons of of

organic organic Created: Created: 3.2 million yards3.2 million yards

that were successfully that were successfully distributed back out into distributed back out into environmentenvironment

Equivalent in volume to Equivalent in volume to 87 87 million bagsmillion bags

Current- Current- 750,000 bags750,000 bags and and 250,000 bulk yards 250,000 bulk yards per per yearyear

Compost in the CommunityCompost in the Community Post construction BMPsPost construction BMPs

-WDOE BMP in state SW manual-WDOE BMP in state SW manual Compliance within next Compliance within next

2 years2 years Educating ContractorsEducating Contractors

CG is KC Link-Up CG is KC Link-Up PartnerPartner

Two for oneTwo for one Erosion Erosion Post-constructionPost-construction

CESCL Training CESCL Training at Maple Valleyat Maple Valley

Residential ProgramsResidential Programs Our technology allowed Our technology allowed

residents to commingle residents to commingle yard + food/organics in yard + food/organics in 20042004

No additional collection No additional collection vehicles, helping the vehicles, helping the cities control costs while cities control costs while adding more diversionadding more diversion

Collaborate with KC and Collaborate with KC and City of Seattle to educate City of Seattle to educate consumers and increase consumers and increase participationparticipation

COMMERCIAL COLLECTIONCOMMERCIAL COLLECTION

Cedar Grove Organics Cedar Grove Organics Collection ServiceCollection Service- - Help meet city and Help meet city and county diversion goals county diversion goals -Initiated to assist -Initiated to assist commercial customers commercial customers in expediting their in expediting their organics recycling organics recycling programs programs

Successful Commercial Successful Commercial Organics Recycling Programs Organics Recycling Programs

TO DO:

Site assessment

Proposal

Training

Containers

Collection

Growth in Cedar Grove’s Growth in Cedar Grove’s Commercial Organics CollectionCommercial Organics Collection

16000

37000

0

10000

20000

30000

40000

Tons/Year

Tonnage

2006-2008

Commercial Tonnage GrowthGreen Scene partners include grocery chains, restaurants, hospitals, schools and universities, coffee house chains and stadiums.

www.gogreenscene.com

Home Depot and Cedar GroveHome Depot and Cedar GroveA Successful CollaborationA Successful Collaboration

Collection of organics at Collection of organics at 3 King County stores; 3 King County stores; added 9 more stores added 9 more stores after initial pilotafter initial pilot

Normally landfilled Normally landfilled wood and plant wastewood and plant waste

Backhaul bags already Backhaul bags already coming to stores on coming to stores on dedicated semi trucksdedicated semi trucks

Home Depot Program HighlightsHome Depot Program Highlights

2007 2007 800 tons (8 mos.)800 tons (8 mos.)2008 (projected)2008 (projected) 4000 tons (12 mos.)4000 tons (12 mos.)

- Landfill diversion - Landfill diversion - Less fuel through - Less fuel through

backhaulbackhaul

Mackay Mackay RestaurantsRestaurants

Executive Chef Steve Cain Executive Chef Steve Cain

Cost savingsCost savings Educating employeesEducating employees Easy transitionEasy transition 300 tons since inception300 tons since inception

Example of Example of PASS PASS ItemsItems

Corn Cup

Corn Clamshell

Didn’t Pass Didn’t Pass ItemsItems

.93 metric tons .93 metric tons of COof CO22e are avoidede are avoided

For each ton of organic waste composted at Cedar Grove Composting…

We contributed to eliminating 299,008 We contributed to eliminating 299,008 metric tons of COmetric tons of CO22equivalent into the equivalent into the atmosphere, or the annual amount atmosphere, or the annual amount produced by…produced by…

40,000 American households40,000 American households -or--or-54,000 American drivers54,000 American drivers

What’s the impact?What’s the impact?

* All figures are rounded

Cedar Grove in the CommunityCedar Grove in the Community

Seattle Tilth

Seattle Seattle Youth GardenYouth Garden

WorksWorks Seattle Public Schools

King County school gardens

Neighborhood Pea Patches

The FutureThe Future

-Development of property (100 acres)-Alternate energy from biomass-Anaerobic digestion of food scraps to energy-Recycling campus for new technologies

The Future

SUSTAINABLE

RENEWABLE