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Table 2 - Continued <br /> Second Semester 2009 (3rd Quarter 2009) Groundwater Monitoring Results <br /> Foothill Sanitary Landfill <br /> (Units mg/I unless noted) <br /> Sampling Designation MWA MW-2R MW-3 MW-4 MW-5 Conc. <br /> Sampling Date 8/18/09 8/17/09 8/18/09 8/18/09 8/17/09 Limits <br /> Chlorinated Herbicides (ug/LJ <br /> All Compounds NM ND ND ND ND detect <br /> Metals (ug/LI <br /> Aluminum NM ND ND ND ND I <br /> Antimony NM ND ND ND ND I <br /> Arsenic NM 2.2 1.8* 2.1 2 I <br /> Barium NM 70 90 65 88 I <br /> Beryllium NM ND ND ND ND I <br /> Cadmium NM ND ND ND ND I <br /> Chromium NM 1.5* 1.6* 2.9* 2.5* I <br /> Cobalt NM ND ND ND ND I <br /> Copper NM ND ND ND ND I <br /> Iron NM ND ND ND ND I <br /> Lead NM ND ND ND ND I <br /> Manganese NM ND ND ND ND I <br /> MercuryNM ND 0.03* ND ND I <br /> Nickel NM 0.79* 0.97* 0.9* 0.94* I <br /> Selenium NM ND 0.67* 0.95* ND I <br /> Silver NM ND ND ND ND I <br /> Tin NM ND ND ND ND I <br /> Thallium NM ND ND ND ND I <br /> Vanadium NM 18 17 16 17 I <br /> Zinc NM ND ND ND ND I <br /> Volatile Organic Compounds(8260B)(ug/L) <br /> 1,1-Dichloroethene NM ND 0.42* ND ND detect <br /> Trichloroethene(TCE) NM ND 1.0 ND ND detect <br /> All Compounds NM ND ND ND ND detect <br /> NE=Not Established <br /> ND=Not Detected <br /> NM=Not Measured <br /> NR=Not Required <br /> I=Insufficient data for statistical analysis <br /> *=Trace concentration(estimated value) <br /> Bolded values indicate VOC detections,underline values indicate concentration limit exceedances <br /> MW-1 not enough water for sampling this semester <br /> LW-l sampling/testing is not part of the monitoring program <br /> [1I Not established due to>50%non-detects <br /> 1 I Parameter also detected in one or more quality control blanks. <br /> Foothill Sanitary Landfill 17 Department of Public Works/Solid Waste <br /> 2nd Semester and Annual 2009 Groundwater Monitoring County of San Joaquin—January 31,2010 <br />