Calculating your - Zender Environmental Health and ...
Calculating your Construction and Demolition Wastes(taken from the ISWM Planning Template by Zender Environmental at )This table is to determine the average annual amount of C&D waste generated in your community. In the first column, list all the buildings in your community. Follow the instructions in the other columns. In the table below the entry for houses, construction means that on average one 1,000 square foot home is built per year. If your housing is built in groups, you can still use one row for all housing construction. For example, if 10 houses are built on average every 5 years, you could list in column B 1,000 ft x 10 houses =10,000, and column E would be “5”.For the excel version of the table, go to: The excel version of the table has the formulas programmed for you, so you only need to input your numbers for Columns B, C, and E. Estimation of Construction & Demolition WasteColumn AColumn BColumn CColumn DColumn EColumn FColumn HProjectBuilding Area (sq ft)Salvage Factors Total Project Wastes (pounds) How often built (years)Average waste per year (pounds)Average waste per year (tons)?(estimate the approximate area of the buildings)(Estimate how much of the project waste is salvaged by the community. ) (Find the right waste number from Table A below. Multiply it by the average sq ft of the building type, multiplied by (1- column c)) (every x years)?????B X (1-C) X (Table A factor)?D ÷ EF÷ 2,000School construction10,00010%35,010301,1670.6Clinic construction3,0005%11,087205540.3Post office construction1,00010%3,501201750.1Store(s) construction1,5008%5,368153580.2House(s) construction1,00015%3,72313,7231.9Renovation, residential50010%7,95217,9524.0Renovation, non-houses75010%11,92771,7040.9Demolition, residential75010%77,625711,0895.5Demolition, non-residential1,00012%18,60053,7201.9Total Average Tons Per Year of C&D Waste????30,44215.2Table A: Typical Construction and Demolition Waste Generation Rates Researched, in lbs (pounds) per sq ftResidential (lbs/sq ft)Non-residential (lbs/sq ft)New Construction4.383.89RenovationVaries17.67Demolition115155From: Characterization of Building-Related Construction and Demolition Debris, Franklin Associates, USEPA 1998. ................
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