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TABLE2 <br /> Second Semester 2013 Leachate Field Measurements <br /> North County Recycling Center and Sanitary Landfill <br /> Area I Total Volume Average Flow Rate <br /> _pH E.C. (timhosic ............................. <br /> July 6.62 3,564 13,110 468 <br /> .... ................................. <br /> ............. - -------------------- <br /> August 6.50 3,950 6,490 ---.260.......................... <br /> ................ <br /> September 6.64 3,944 7,931 307 <br /> .................................. <br /> ...................... ..................... <br /> October 6.60 4,369 10,059 373 <br /> .................... .................................. ............. <br /> November 6.33 4,091 10,739 316 <br /> December 6.37 3,740 8,031 196 <br /> ... . .... <br /> ................ ............... .......................... <br /> Semester average leachate collection rate: 320 <br /> ....................... ...... ..............-11..................... ...... -----------.......... ........ <br /> Total Volume Average Flow Rate <br /> . a <br /> Are3....................... -C. mhqs/erp) (gallons......_..- ) <br /> ... .................. .p...H..... .... .... !�_ <br /> July 2,645 7,095 253 <br /> August 6.26 2,495 4,770 191 <br /> ...-............... <br /> September 6.5.6 3,054 2,910 300 <br /> October 6.17 2,555 4,259 158 <br /> -------------------------- -------- <br /> November 6.72 2,907 6,919 204 <br /> --------------- <br /> December 6.63 2,325 5,191 127* <br /> Semester average leachate collection rate: 205.5 <br /> *Estimated Volume due to meter failure from freezing conditions <br /> Total Volume Average Flow Rate <br /> Area 4E.C.(Rmhos/cri ) <br /> July 6.62 2,386 1,683 .......... 60 <br /> August 6.55 2,590 9,922 397 <br /> September 6.61 2,589 6,396 206 <br /> October 6.73 2,393 5,418 201 <br /> ............. - <br /> November 6.81 2,745 5,841 172 <br /> December 6.65 2,251 5,120 125 <br /> .................... <br /> Semester average leachate collection rate: 193.5 <br /> All leachate was successfully returned to the refuse at least 40 feet above the LCRS, allowing dryer <br /> refuse to absorb the leachate. <br /> A comparison of the leachate monitoring data to groundwater monitoring data shows that leachate, <br /> generally contains significantly higher TDS,Electrical Conductivity, and Chloride than groundwater. <br /> Leachate is also slightly more acidic than groundwater. <br /> North County RC&SL Public Works/Solid Waste <br /> 2nd <br /> Semester and Annual 2013 Groundwater Monitoring 9 County of San Joaquin-January 25,2014 <br />