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Project Description—Report of Composting Site Information <br /> Tracy Material Recovery Facility and Transfer Station <br /> 307035. Mac4rthur Drive, Tracy, California 95377 <br /> RA <br /> P£RFO. <br /> -.. TED PIPs.: <br /> SIDE VIEW <br /> BAG <br /> BLOWER - <br /> PERFORATEL PIPE <br /> CONTROLS ................ .� - - -- <br /> T <br /> Figure 1 OP VIEW <br /> CTI AERATION SYSTEM <br /> • Pathogen Reduction for CTI Bag System: <br /> If the temperature rises too fast, a program selection with less blower time will be <br /> selected. The objective is to keep temperatures between 140 and 170 degrees <br /> Fahrenheit range to achieve pathogen destruction. An uneven mix and/or <br /> distribution of air may cause temperatures to vary from one part of the bag to <br /> another. When this occurs, one part of the material may reach maturity sooner than <br /> other parts. The "Composting Temperatures" chart, prepared by CTI, Figure 2, <br /> shows the ideal temperature ranges and related terminology. <br /> • Supplemental Pathogen Reduction <br /> The CTI Process for pathogen reduction is supplemental by a secondary outdoor <br /> windrow pathogen reduction process. The bags are opened up and the compost <br /> product is treated to a supplemental pathogen reduction process typical of outdoor <br /> windrow composting. The process of turning windrows provides sufficient oxygen to <br /> sustain the biological activity and keep the material at a temperature of 55 degrees <br /> Celsius (131 degrees Fahrenheit), or higher, for a period of 15 days, or longer, which <br /> meets regulatory pathogen reduction requirements (14 CCR §17868.3). There will <br /> be a minimum of 5 turnings of the windrow during a 15-day period during which <br /> readings such as temperature and oxygen content are monitored and documented. <br /> When the <br /> Edgar&Associates,Inc. 40 Tracy Compost Fac ProjDesc042310 <br />