Waste Characterization Studies and Initial MassDEP Analysis

1. Waste Characterization Studies and Initial MassDEP Analysis SWAC Meeting June 23, 2011 Jordan Macy, MassDEP

2. Waste Characterization Study (WCS): Background • 6 MWC units participating in class II recycling program • Regulations at 310 CMR 19.303 • Facilities must submit WCS every 3 years • Test Methodology ASTM D5321-92: Test Method for Determination of the Composition of Unprocessed Municipal Solid Waste • MassDEP Guidance includes materials • 9 Aggregate Primary Material Categories • 62 Secondary Material Subcategories

3. Primary Material Categories (count of secondary material types) • Paper (8) • Plastics (13) • Metals (7) • Glass (4) • Organic Materials (5) • Construction and Demolition (8) • Household Hazardous Waste (9) • Electronics (3) • Other Materials (5)

4. Secondary Material Subcategories • Definitions of each material type are found in appendices of each MWC Facility WCS report • Also on DEP website at: http://www.mass.gov/dep/recycle/priorities/wrr.htm

5. Sorting Procedure • Driver Interviews • Use questionnaires to determine if waste is residential or ICI • Must be > 80% for Residential /ICI designation • Other loads excluded • Record Load Sample Information • Origin type of waste (ie. Residential or ICI) • Truck Type (rear packer, compactor, etc.) • Tonnage delivered • Staging/selecting the waste sample (must be >225 pounds) • Dumped onto sort screen • Sorted into material category (62) bins • Weigh bins

6. Staging Samples for Sorting

7. Sort Table & Bins

8. Analyses Presented in MWC Reports • Account of Final Sort Design • Overall Composition of Waste Stream • Composition of Waste by Substream • Residential • ICI • Unacceptable loads (< 80% residential/ICI, originating out of state, or > 50% C&D) • Composition of Waste by Haul Type • Roll Off vehicle type (open top, closed top, compactor) • Rear/Front loading packer

9. MassDEP Weighted Average Calculations for Summary Estimates In-state waste received by each facility in 2009 (tons) Adding up the products of (% of combined total) multiplied by (facility % abundance of secondary waste category) across all the 6 facilities equals an estimate of the percent abundance of each material in MA waste (based on 2009 in-state tons received).

10. Comparative % of WCS by MWC

11. Aggregate Categories *Note: Data at Saugus, North Andover, and Millbury are subject to revision

12. Aggregate Weighted Average of Primary Material Categories* *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

13. Weighted Average: Top 13 Subcategory Materials (= 64% of Total Materials)* *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

14. *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

15. Residential Sector Primary Waste Category Abundance by MWC Facility *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

16. ICI Sector Primary Waste Category Abundance by MWC Facility

17. *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

18. Weighted Abundance of Top 13 Residential Materials (= 64.1% of Total Residential)* *Note: Data is subject to revision and may be corrected pending updated reports at Wheelabrator Facilities

19. Weighted Abundance of Top 13 ICI Materials (= 71.1% of total ICI)

20. Number of Loads Sampled over2 Seasons at MWC

21. Questions? • Contact Jordan Macy • (617) 292-5805 • Jordan.Macy@state.ma.us

22. Appendix: Material Subcategories

23. Paper (8 types) • Uncoated Corrugated Cardboard/Kraft Paper • Waxed Cardboard • High Grade Office Paper • Magazines/Catalogs • Newsprint • Other Recyclable Paper • Compostable Paper • Remainder/Composite Paper

24. Plastics (13 Types) • PET Beverage Containers (non-MA deposit containers) • PET Containers other than Beverage Containers (which originally contained non-hazardous material) • Plastic MA Deposit Beverage Containers • HDPE Bottles, colored and natural, (which originally contained non-hazardous material) • Plastic Tubs and lids (HDPE, PP, etc) • Plastic Containers #3-#7 (which originally contained non-hazardous material) • Expanded Polystyrene Food Grade • Expanded Polystyrene Non-food Grade • Bulk Rigid Plastic Items • Film (non-bag clean commercial and industrial packaging film) • Grocery and other Merchandise Bags • Other Film means plastic film • Remainder/Composite Plastic

25. Metals (7 types) • Aluminum Beverage Containers (non-MA deposit containers) • Aluminum MA Deposit Beverage Containers • Tin/Steel Containers • Other Aluminum • Other Ferrous and non-ferrous • White Goods • Remainder/Composite Metal

26. Glass (4 types) • Glass Beverage Containers (non-MA deposit containers) • Other Glass Packaging Containers (non-MA deposit containers) • Glass MA Deposit Beverage Containers • Remainder/Composite Glass

27. Organic Materials (5 types) • Food Waste • Branches and Stumps • Prunings, Trimings, Leaves and Grass • Manures • Remainder/Composite Organic

28. C&D in MSW Stream (8 types) • Asphalt Pavement, Brick, and Concrete • Aggregates, Stone, Rock • Wood – Treated • Wood – Untreated • Asphalt Roofing • Drywall/Gypsum Board • Carpet and Carpet Padding • Remainder/Composite Construction and Demolition

29. HHW (9 types) • Ballasts, CFLs, and Other Fluorescents • Batteries – Lead Acid • Batteries – Other • Paint • Bio-Hazardous • Vehicle and Equipment Fluids • Empty Metal, Glass, and Plastic Containers (that originally contained toxic materials) • Pesticides and Fertilizers • Other Hazardous or Household Hazardous Waste

30. Electronics (3 types) • Computer-related Electronics • Other “brown goods” • Televisions and Computer Monitors

31. Other Materials (5 types) • Tires and other rubber • Textiles • Bulky Materials • Restaurant Fats, Oils and Grease • Other Miscellaneous