waste characterization studies and initial massdep analysis

Waste Characterization Studies and Initial MassDEP Analysis

SWAC MeetingJune 23, 2011

Jordan Macy, MassDEP

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

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)

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

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

Staging Samples for Sorting

Sort Table & Bins

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

MassDEP Weighted Average Calculations for Summary Estimates

In-state waste received by each facility in 2009 (tons)

SaugusNorth Andover Millbury Rochester Haverhill Springfield

Combined Total

MA tons accepted 409,435

386,583 382,226 1,183,591 565,480 121,310

3,048,625

% of Combined

Total 13% 13% 13% 39% 19% 4% 100%

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).

Comparative % of WCS by MWC

Aggregate CategoriesSaugus* North Andover* Millbury* Rochester Haverhill Springfield

Paper 28.2% 28.0% 26.7% 23.7% 27.3% 20.1%

Plastics 15.4% 15.4% 16.3% 13.4% 11.6% 13.5%

Metals 5.5% 5.1% 5.7% 5.5% 5.7% 4.6%

Glass 2.9% 2.7% 3.3% 1.7% 1.8% 1.4%Organic Materials 19.8% 20.4% 17.0% 21.3% 22.3% 21.6%Construction and Demolition 13.3% 13.1% 16.3% 13.2% 15.0% 13.2%Household Hazardous Waste 4.5% 4.7% 3.7% 2.9% 1.7% 2.9%

Electronics 2.0% 2.2% 2.0% 4.1% 3.4% 6.3%

Other Materials 7.5% 7.7% 8.0% 14.2% 11.3% 16.5%Other Miscellaneous 0.9% 0.9% 1.1% 2.6% 2.3% 3.0%

*Note: Data at Saugus, North Andover, and Millbury are subject to revision

Aggregate Weighted Average of Primary Material Categories*

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

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

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

Residential Sector Primary Waste Category Abundance by MWC Facility

Aggregate Categories Saugus* North Andover* Millbury* Rochester Haverhill Springfield

Paper 27.6 27.7 27.7 20.9 18.8 18.4

Plastics 14.9 14.9 14.9 13.5 10.6 11.8

Metals 4.8 4.8 4.8 4.5 6.6 4.7

Glass 2.8 2.8 2.8 2.0 2.7 1.6

Organic Materials 21.4 21.4 21.4 23.5 20.9 21.7

C & D (in the MSW stream) 12.5 12.5 12.5 12.1 15.2 12.3

Household Hazardous Waste 5.1 5.1 5.1 3.6 3.2 3.6

Electronics 2.1 2.1 2.1 4.6 4.4 6.7

Other Materials 8.0 8.0 8.0 12.4 12.8 15.7

Other Miscellaneous 0.9 0.9 0.9 3.0 4.9 3.6

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

ICI Sector Primary Waste Category Abundance by MWC Facility

Aggregate Categories Saugus North Andover Millbury Rochester Haverhill Springfield

Paper 29.8 29.2 26.1 29.5 30.5 25.9

Plastics 16.9 16.8 17.1 13.1 12.0 19.1

Metals 7.5 6.1 6.3 7.6 5.4 4.1

Glass 3.2 2.5 3.6 1.0 1.4 0.6

Organic Materials 15.4 16.9 14.1 16.9 22.8 20.9

C & D (in the MSW stream) 15.4 14.8 18.7 15.7 15.0 16.0

Household Hazardous Waste 2.8 3.3 2.8 1.6 1.1 0.8

Electronics 1.7 2.7 1.9 2.9 3.0 5.3

Other Materials 6.4 6.8 8.0 9.8 7.5 6.3

Other Miscellaneous 1.0 0.9 1.2 1.9 1.3 1.0

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

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

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

Number of Loads Sampled over2 Seasons at MWC

Questions?

• Contact Jordan Macy– (617) 292-5805– Jordan.Macy@state.ma.us

Appendix: Material Subcategories

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

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

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

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

Organic Materials (5 types)

• Food Waste • Branches and Stumps • Prunings, Trimings, Leaves and Grass • Manures • Remainder/Composite Organic

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

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

Electronics (3 types)

• Computer-related Electronics • Other “brown goods” • Televisions and Computer Monitors

Other Materials (5 types)

• Tires and other rubber • Textiles • Bulky Materials • Restaurant Fats, Oils and Grease • Other Miscellaneous