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Compost that is created by the collec/on will sequester more carbon in <br />Orange County and the surrounding area when added to soil. In terms of <br />adding soil organic maser, different papers have found that each ton of <br />compost added to the soil sequesters between 0.1 and 1 ton of CO2 in the <br />soil. We have employed an average of .5 for our calcula-on: One ton of food <br />waste results in approximately 680 Pounds of compost (this figure was <br />obtained from Amy Fulford, soil expert at Brooks Contractors), so our <br />es-mated total of food waste collected next year = 23.4 tons x 680 = 15,912 <br />pounds or 7.96 tons. If 1 ton of compost increases carbon sequestra-on by .5, <br />then the total addi-onal carbon sequestered is 3.98 MTCO2 (7.96 x .5 = 3.98). <br /> <br />Using compost also means you don’t need to use fer/lizer: .80 MTCO2 <br />reduced.Compost typically contains about 1 to 2 percent nitrogen and 1 <br />percent phosphorus. These fer-lizers require fossil fuel to produce. In CO2 <br />terms, that is 4 kg CO2 for each kg N and 2 kg CO2 for each kg P. <br />If 1 ton of compost contains 2% N and 1% P, how much CO2 is saved by using <br />that instead of fer-lizer? Here’s the math: <br />1 ton of compost * 1,000 kg/ton * 0.02% N = 20 kg N <br />1 ton of compost * 1,000 kg/ton * 0.01% P = 10 kg P <br />20 kg N * 4 kg CO2 /kg N = 80 kg CO2/kg N <br />10 kg N * 2 kg CO2 /kg P = 20 kg CO2 /kg P <br />80 kg CO2 + 20 kg CO2 = 100 kg CO2 or 0.1 tons CO2 Per ton of compost <br />From BioCycle, The Organics Recycling Authority <br />Dr. Sally Brown, Research Associate Professor, University of Washington <br />7.96 (es-mated amount of compost created) x .1 = 0.80 MT CO2 <br />21.For how many years will <br />this emissions reduc-on <br />take place as a result of <br />your project? Please <br />consider the expected <br />life-me of the <br />technology/program/ <br />impact etc. <br />Based on comparisons with other compost collec-on sites, such as the site at <br />the Carrboro Farmers’ Market, we es-mate that the tonnage of compostables <br />collected will con-nue to increase over -me, so that the carbon reduc-on will <br />con-nue to increase well into the future. The emissions reduc-on will <br />increase as more community members u-lize the ERFM Compost Collec-on <br />Site. The pasern of increased u-liza-on over -me is strongly supported by the <br />trend already observed since the start of the project. The numbers of waste <br />drop-offs have risen drama-cally since the start of collec-on (400% in 3 <br />months). This site will con-nue well into the future unless funding is no longer <br />available for the pick-up and compos-ng of food waste that is collected. <br /> Page of 15 22 <br />DocuSign Envelope ID: 9FB641C3-C7F6-4609-BE4A-71829032AD83