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# Waste Reduction Model (WARM) NEW VERSION: Updated March 2015 (Version 13, 3/15) EPA created WARM to help solid waste planners and o rganizations track and voluntarily report greenhouse gas emissions reductions and energy savings from several differen t waste management practices. The Web-based version of WARM was last updated March 2015. Use this worksheet to describe the baseline and alternative MSW management scenarios that you want to compare. Please follow the steps below to enter your material tonna ge information in the input boxes in the tables, an d select appropriate landfill and waste transport characteristics. For i nformation on the definition of each of the WARM ma terial types as well as data source and year of underlying life-cycle data,please see the WARM materials definitions list. Tips: If the listed material is not generated in your com munity/organization or you do not want to analyze i t, leave it blank or enter 0. Make sure that the total quantity generated equals the total quantity managed. If you have any questions, consult the WARM User's Guide. Steps 1 and 2. Baseline and Alternative Scenarios Baseline Scenario Alternative Scenario

Material Tons

Recycled Tons

Landfilled Tons

Combusted Tons

Composted Tons

Generated Tons

Source Reduced Tons

Recycled Tons

Landfilled Tons

Combusted Tons

Composted Aluminum Cans N/A 0 N/A Aluminum Ingot N/A 0 N/A Steel Cans N/A 0 N/A Copper Wire N/A 0 N/A Glass N/A 0 N/A HDPE N/A 0 N/A LDPE N/A N/A 0 N/A N/A PET N/A 0 N/A LLDPE N/A N/A 0 N/A N/A PP N/A N/A 0 N/A N/A PS N/A N/A 0 N/A N/A PVC N/A N/A 0 N/A N/A PLA N/A 0 N/A Corrugated Containers N/A 0 N/A Magazines / Third-class mail N/A 0 N/A Newspaper N/A 0 N/A Office Paper N/A 0 N/A Phonebooks N/A 0 N/A Textbooks N/A 0 N/A Dimensional Lumber N/A 0 N/AMediumdensity Fiberboard N/A 0 N/A



# Wastes - Resource Conservation - WARM http://epa.gov/epawaste/conserve/tools/warm/Warm_Fo rm.html Last updated on 4/21/2015 

## Resource Conservation | Waste Reduction Model (WARM) | U.S. EPA http://epa.gov/epawaste/conserve/tools/warm/Warm_Form.html

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Material Tons

Recycled Tons

Landfilled Tons

Combusted Tons

Composted Tons

Generated Tons

Source Reduced Tons

Recycled Tons

Landfilled Tons

Combusted Tons

Composted Food Waste (non-meat) 1 N/A 0 N/A Food Waste (meat only) 1 N/A 0 N/A Yard Trimmings N/A 0 N/A N/A Grass N/A 0 N/A N/A Leaves N/A 0 N/A N/A Branches N/A 0 N/A N/A Mixed Paper (general) N/A 0 N/A Mixed Paper (primarily residential) N/A 0 N/A Mixed Paper (primarily from offices) N/A 0 N/A

Mixed Metals N/A 0 N/A Mixed Plastics N/A 0 N/A Mixed Recyclables N/A 0 N/A N/A Food Waste 1 N/A 0 N/A Mixed Organics N/A 0 N/A N/A Mixed MSW N/A N/A 0 N/A N/A N/A Carpet N/A 0 N/A Personal Computers N/A 0 N/A Clay Bricks N/A N/A N/A 0 N/A N/A N/A Concrete 2 N/A N/A 0 N/A N/A N/A Fly Ash 3 N/A N/A 0 N/A N/A N/A Tires 4 N/A 0 N/A Asphalt Concrete N/A N/A 0 N/A N/A Asphalt Shingles N/A 0 N/A Drywall N/A N/A 0 N/A N/A Fiberglass Insulation N/A N/A N/A 0 N/A N/A N/A Vinyl Flooring N/A N/A 0 N/A N/A Wood Flooring N/A N/A 0 N/A N/A Please enter data in short tons (1 short ton = 2,00 0 lbs.) Please refer to the User's Guide if you need assistance completing this table. 1 Excel version of WARM allows users to assess energy and environmental impacts for more detailed foodwaste types. 2 Recycled concrete used as aggregate in the production of new concrete 3 Recycled fly ash is utilized to displace Portlandcement in concrete production. 4 Recycling tires is defined in this analysis as us ing tires for crumb rubber applications and tire-de rived aggregate uses in civil engineering applicati ons. Step 3. Landfill Characteristics 

### The emissions from landfilling depend on whether th e landfill where your waste is disposed has a landfill gas (LFG) control system. If you do not know whether your landfill ha s LFG control, select "National Average," which cal culates emissions based on the proportions of landfills with LFG cont rol in 2012. If your landfill does not have a LFG system, select “No LFG Recovery.” If a LFG system is in place at your land fill, select “LFG Recovery” and click one of the in dented buttons to indicate whether LFG is recovered for energy or fla red. Note that the Web-based WARM calculator assumes that the “LFG 

## Resource Conservation | Waste Reduction Model (WARM) | U.S. EPA http://epa.gov/epawaste/conserve/tools/warm/Warm_Form.html

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### Recovery” option includes bulk MSW decay rates for national average landfill moisture conditions and “typical” landfill gas

collection system operation. These assumptions are the default assumptions in the WARM Excel version.

National Average No LFG Recovery LFG Recovery Recover for energy Flare Step 4. Waste Transport Characteristics 

### Emissions that occur during transport of materials to the management facility are included in this mod el. You may use default transport distances, 20 miles, or provide i nformation on the transport distances for the vario us MSW management options. Use default distance

Define distance Management Option Distance (miles) Landfill Combustion Recycling Composting

Step 5. Results Output



### Metric Tons of Carbon Dioxide Equivalent (MTCO2E) Metric Tons of Carbon Equivalent (MTCE) Units of Energy (million BTU) View Emission/Energy Factors based on your selectio n above. The following inputs are optional and may be used to customize your summary report. Organization: Name: Reporting Period: / / To / / 

## Resource Conservation | Waste Reduction Model (WARM) | U.S. EPA http://epa.gov/epawaste/conserve/tools/warm/Warm_Form.html

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