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® TABLE 6 <br /> LEACHATE MONITORING SUMMARY <br /> SECONDSEMESTER 2012 <br /> NORTH COUNTY RECYCLING CENTER AND SANITARY LANDFILL <br /> (Units mg/I unless noted) <br /> L-1 L-3 L-4 <br /> (Area 1 (Area 3 (Area 4 <br /> Sampling Designation Sum Sum Sum <br /> Sampling Date 8/1/12 8/1/12 8/1/12 <br /> -Monitoring and Field Parameters <br /> Temperature °C 26.1 28.1 26.90 <br /> Electrical Conductivity uS/cm) 4314 3051 2161 <br /> H units 5.77 6.03 6.27 <br /> Turbidity 54.3 68.7 79.6 <br /> Redox Potential -1 +29 -14 <br /> Dissolved Oxygen 2.41 2.96 2.16 <br /> Total Alkalinity as CaCO3 610 550 640 <br /> Chloride 980 560 370 <br /> Hardness as CaCO3 1,500 890 1,100 <br /> Total Dissolved Solids 2,600 1,600 1,400 <br /> Chemical Oxygen Demand 340 250 170 <br /> ® Metals <br /> Calcium {330) {21 0) {250) <br /> Magnesium 160 88 120 <br /> Volatile Organic Compounds(ug/L) <br /> Benzene 4.8 0.91 9 <br /> Chlorobenzene 0.88 ND 0.19* <br /> Chloroethane 1.2 0.31* 1.2 <br /> 2-Chlorotoluene 0.79 0.25* ND <br /> 1,2-Dichlorobenzene 0.53 0.080* ND <br /> 1,4-Dichlorobenzene 6.8 2.4 2.4 <br /> 1,1-Dichloroethane 0.87 0.27* 0.87 <br /> 1,2-Dichloroethane 0.48* 0.98 3.0 <br /> Cis-1,2-Dichloroethene 2.7 0.60 0.90 <br /> 1,2-Dichloropropane ND 0.24* 0.63 <br /> Ethylbenzene 11 2.6 0.38* <br /> Isopropyl benzene 0.65. 0.86 0.60 <br /> p-Isopropyltoluene 0.48* 1.2 ND <br /> Methylene chloride 0.73* ND ND <br /> Methyl t-butyl ether 3.3 7.1 26 <br /> Naphthalene 17 2.6 8.2 <br /> North County RC&SL Public Works/Solid Waste <br /> 2nd Semester and Annual 2012 Groundwater Monitoring 24 County of San Joaquin-January 15,2013 <br />