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Presentation of Contractor’s Report “California 2008 Statewide Waste Characterization Study” CIWMB Strategic Policy Development Committee September 9, 2009 Presentation in 3 Parts Background Results Policy Implications Part 1 - Background What is waste characterization?

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Presentation of contractor s report california 2008 statewide waste characterization study l.jpg

Presentation of Contractor’s Report “California 2008 Statewide Waste Characterization Study”

CIWMB Strategic Policy Development Committee

September 9, 2009


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Presentation in 3 Parts Statewide Waste Characterization Study”

  • Background

  • Results

  • Policy Implications


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Part 1 - Background Statewide Waste Characterization Study”

  • What is waste characterization?

  • Why it is important?

  • How do we do it?

  • Board studies 1999-2009


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What is Waste Characterization? Statewide Waste Characterization Study”

  • Determine what’s disposed in landfills

  • Determine types and amounts of paper, food, glass, metal, etc. in the waste stream

  • Profiles for each source of waste:


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Why is it important? Statewide Waste Characterization Study”

For effective diversion programs and waste management strategies, need to know:

  • Not only WHAT is in the waste stream, but WHERE it came from

  • How the waste stream changes over time

  • Current information to support policy decisions


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How to do a Waste Statewide Waste Characterization Study”Characterization Study

  • Take samples from garbage trucks or dumpsters

  • Sort materials

  • Record weights

  • Survey incoming vehicles

  • Compile data


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CIWMB Studies 1999-2009 Statewide Waste Characterization Study”

1999 – First statewide study, details on commercial sector by business types

2004 – Smaller study, composition & amounts by larger sectors

  • most like 2008 study

    2006 – Four targeted studies

  • commercial sector details for select business groups, including recycling data

  • construction and demolition waste

  • detailed study of commercial self-haul

  • Materials Recovery Facility (MRF) residuals


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Overview – 2008 Study Statewide Waste Characterization Study”

  • 40 disposal sites throughout the state

  • Data collected over 4 seasons in 2008

  • 751 waste samples sorted by hand

  • 6,896 vehicles surveyed for sector of origin

  • Data aggregation and statistical analysis to develop statewide composition and quantities


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2008 Study – Special Data Collection Statewide Waste Characterization Study”

  • Recyclable materials assessed for contamination

  • Roofing materials tested for asbestos

  • More details on lumber and plastic


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Part 2 - Key Results Statewide Waste Characterization Study”

  • Overall composition

  • Sector breakdown

  • Changes since 2004

  • Special data highlights



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Top 10 Disposed Materials Overall, 2008 by Major Category, 2008

* “Remainder/Composite” material types include miscellaneous materials that don’t fit other categories


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Recoverable Materials in Overall Disposal by Major Category, 2008

Recyclable Materials

Cardboard

Most Paper

Recyclable Glass

Recyclable Metals

HDPE, PETE, Some Film Plastic

E-waste

Compostable Materials

Food

Leaves/Grass

Other Yard Waste

A Portion of Non-recyclable Paper

Recoverable Inerts

Concrete

Asphalt Paving

Asphalt Roofing

Lumber

Gypsum Board

Rock, Soil, Fines



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Changes in the Overall Waste Stream 2008Since 2004

  • Sector proportions about the same

  • Decreases in some categories:

    • Paper decreased from 8.4 million tons to 6.9 million tons

    • Glass decreased from 0.9 million tons to 0.6 million tons

    • Metal decreased from 3.1 million tons to 1.8 million tons

  • Plastic and organics about the same

  • Significant increase in “Inerts & Other” category

    • Driven by increase in lumber from 10% to 15% of the waste stream (from 3.9 million tons to 5.8 million tons)


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Results of Special Data Collection 2008

Contamination Study – looked at condition and source of contamination for commonly recycled paper, metal, plastic


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Contaminated at Source 2008

Clean

Contaminated During Collection


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Most Recyclable Materials in Loads are Clean Enough for Recycling

Paper Contamination

Metal & Plastic Contamination


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Details on Lumber Recycling

“Clean” wood types are commonly accepted for compost and mulch production and are 56% of lumber and 8% of all waste disposed


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Asbestos in Roofing Recycling

  • 5 material types sampled

  • 191 samples from loads throughout the state analyzed using US EPA technique

  • Asbestos found in one sample – mastic*

    • New California data relieves asbestos concern

  • Projects around U.S use material in road base

  • Caltrans: no specifications or demonstration projects for use in road base

    *Mastic is a paste-like material used as an adhesive or seal in roofing applications


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PETE Plastic Bottles Recycling

  • PETE = polyethylene terephthalate (e.g., water bottles, soft drink bottles, #1 recycling label)

  • PETE Containers are 0.5% of waste by weight

  • “PETE Containers” sorted in more detail

  • Water Bottles less than 1 liter in size are 26% of all PETE Containers disposed


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Part 3 - Key Policy Implications Recycling

  • Organics

  • Commercial Waste Recycling

  • Climate Change – measuring reductions in greenhouse gas emissions



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Implications for Organics Recycling

Diverting half of only these organics (Strategic Directive 6.1) would:

  • Increase statewide diversion from 59% to 74%

  • Use 6 million tons of resources for compost, bioenergy, and biofuels

  • Impact facilities, technology, cross-media issues

  • Keep these methane producers out of landfills

  • Meet AB 32 goals and Strategic Directives

    • Low-carbon Fuel, Renewable Portfolio Standards, anaerobic digestion


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Commercial Waste* Recycling

  • Some businesses already divert a lot, some don’t

  • Largest part of waste stream

  • Most prevalent material types:

    • Lumber – 16% (almost 3 million tons)

    • Food – 15% (almost 3 million tons)

    • Cardboard – 7% (about 1 million tons)

  • Two thirds of commonly recyclable materials are clean enough for immediate recycling

    * not including commercial self-haul or multifamily



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Common Recyclables Disposed in Commercial Waste* Stream by Major Category, 2008

* Not including Organics or Inert Materials


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Implications for Commercial Recycling Stream by Major Category, 2008

  • Materials available:

    • 6 million tons food and lumber

    • 3 million tons common recyclables

  • Mandatory commercial recycling:

    • Proposed legislation

    • AB 32 measure

    • Developing regulations

  • Diverting 75% of commercial recyclables (other than organics) would increase diversion 2.3 million tons

  • Recycling methods/facilities exist – need expansion


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Climate Change Measurement Stream by Major Category, 2008

Waste characterization data supports AB 32:

  • amounts and sources of feedstocks for compost, mulch, biofuels

  • types and amounts of recyclables in commercial waste

  • amounts and sources of feedstocks for anaerobic digestion


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Climate Change Measurement (cont.) Stream by Major Category, 2008

  • Use data on changes in disposal to estimate statewide emissions reductions

  • Tons of specific materials diverted can be translated to MMTCO2e

  • Easier/more accurate to measure disposal than diversion


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Summary – Big Picture Stream by Major Category, 2008

  • Comprehensive information on disposed waste

    • Commercial is biggest sector

    • Organics (food) and Inerts/Other (lumber) are biggest types, paper also significant

  • Many materials clean enough to be recycled

  • Huge potential - more diversion/GHG reductions


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Summary – Some Details Stream by Major Category, 2008

  • Data on materials/sources can guide next steps

  • Special information answers specific questions

    • low contamination rates for recyclables

    • asbestos in roofing almost non-existent

    • Most wood clean enough for compost/mulch

  • Even more information in the report!


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Questions? Stream by Major Category, 2008


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