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<br /> <br />Forward Landfill – SIR 4 www.scsengineers.com <br /> <br /> <br /> <br />Table 3 – 2014 Commercial Waste Composition for San Joaquin County <br />Paper Glass Metal Electronics Plastic Other Organic Inerts and <br />Other HHW Special <br />Waste <br />Mixed <br />Residue <br />29.7% 1.9% 12.3% 0.9% 8.6% 36.4% 8.5% 0.1% 1.0% 0.5% <br /> <br />Table 4 shows the overall estimated percentage of organic waste to non-organic waste based on the <br />2014 statewide study completed by CalRecycle. <br />Table 4 – 2014 Overall Waste Composition for San Joaquin County <br />San Joaquin County Organics Inorganics <br />Percentage 67% 33% <br /> <br />Table 4 shows that based on the 2014 statewide study, approximately 67% of the waste stream in <br />San Joaquin County is made up of organic waste. In 2014, there were 811,292 tons of waste <br />disposed in the Landfill. Therefore, it is assumed that approximately 67% of the 2014 tonnage or <br />543,566 tons were organics. <br />In accordance with Section 39730.7(a) of SB 1383, the 50% and 75% organics diversion by <br />jurisdictions are required by 2020 and 2025, respectively. This would equate to an estimated <br />reduction upstream of the Landfill to 33.5% organics fraction in 2020 and 16.75% organics fraction <br />in 2025. <br />4.2 IMPACTS TO WASTE VOLUME <br />For 2020, there were no observed impacts to waste volumes as a result of organics diversion <br />requirements occurring upstream. <br />For 2025, based on a 75% organics diversion upstream, the potential reduced waste intake at the <br />Site would be approximately 641,891 tons in 2025. This equates to approximately 755,166 CY <br />based on site-specific AUF if the customers the site served remained constant. <br />Note that this report assumes that the reduced disposal tonnages due to upstream organics <br />diversion are not replaced by other waste streams by the Site. Impacts to the Landfill noted in this <br />report will change should these diverted tonnages be replaced by other waste streams. The actual <br />disposal tonnage is influenced by many factors outside the control of the Landfill; such as operations <br />at other regional landfills and transfer stations, nature of the wastes, waste generation rates, waste <br />diversion rates, development activity in the region and consumer behavior. The impact of the <br />reduction to the waste disposal tonnage at the Landfill due to the implementation of SB 1383 is <br />reflected in Section 6 – Volumetric Capacity. <br />5 DAILY AND INTERMEDIATE COVER AND BENEFICIAL USE <br />5.1 DAILY COVER <br />The purpose of daily cover is to isolate refuse materials from the environment. Daily cover prevents <br />windblown trash, minimizes vectors, odors, infiltration into the surface, and prevents fires from <br />occurring in the landfill. Daily cover requirements are described in 27 CCR §28680(a) and §20650.