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TABLE 6 <br /> LEACHATE MONITORING SUMMARY <br /> FIRST SEMESTER 2012 <br /> NORTH COUNTY RECYCLING CENTER AND SANITARY LANDFILL <br /> (Units mg/I unless noted) <br /> L-1 L-3 L-4 <br /> (Module 1 (Module 3 (Module 4 <br /> Sampling Designation Sum Sum Sum <br /> Sampling Date 1/9/12 1/9/12 1/9/12 <br /> Monitoring and Field Parameters <br /> Temperature °C 15.9 14.7 22.8 <br /> Electrical Conductivity uS/cm) 3743 2803 2986 <br /> H units 6.48 6.97 7.11 <br /> Turbidity 21.9 31.4 27.6 <br /> Redox Potential -33 -32 -62 <br /> Dissolved Oxygen 2.41 2.07 1.78 <br /> Bicarbonate Alkalinity 860 700 870 <br /> Total Alkalinity as CaCO3 710 570 710 <br /> Chloride 870 590 490 <br /> Nitrate as N ND ND ND <br /> Sulfate 2.0 ND 1.2* <br /> Hardness as CaCO3 1500 1000 1100 <br /> Total Dissolved Solids 2400 2000 1700 <br /> Chemical Oxygen Demand 320 260 150 <br /> Metals <br /> Calcium 320 240 240 <br /> Magnesium 160 110 120 <br /> Sodium 260 200 160 <br /> Potassium 2.9 5.8 3.0 <br /> Volatile Organic Compounds (ug/Ll <br /> Benzene 2.2 0.94 13 <br /> n-Butylbenzene 0.13* ND ND <br /> Chlorobenzene 0.33* ND 0.19* <br /> Chloroethane 0.55 ND 1.2 <br /> 1,2-Dichlorobenzene 0.28* ND ND <br /> 1,4-Dichlorobenzene 3.7 0.76 2.3 <br /> 1,1-Dichloroethane 0.94 0.46* 1.1 <br /> 1,2-Dichloroethane ND 0.68 4.3 <br /> Cis-1,2-Dichloroethene 3.6 0.92 0.76 <br /> 1,2-Dichloropropane ND ND 0.68 <br /> Ethylbenzene 2.8 1.2 0.46* <br /> Isopropylbenzene 0.26* 0.28* 0.59 <br /> p-Isopropyltoluene 0.47* 0.41* ND <br /> Methyl t-butyl ether 3.5 4.4 31 <br /> Naphthalene 13 0.87 9.2 <br /> North County RC&SL Public Works/Solid Waste <br /> 151 Semester 2012 Groundwater Monitoring 16 County of San Joaquin-July 26,2012 <br />