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TABLE 2 <br /> CORRAL HOLLOW SANITARY LANDFILL <br /> FOURTH QUARTER 2003 GROUNDWATER MONITORING RESULTS (continued) <br /> COC SCAN:WELLS MW-6& MW-7 <br /> (Units mg/I unless noted) <br /> Sampling Designation MW-6 MW-7 <br /> Sampling Date 10/8/03 10/8/03 <br /> Constituents of Concern <br /> ' Dissolved Metals (EPA 200 Series) <br /> Silver ND ND <br /> Aluminum 0.28* 0.15* <br /> Arsenic 0.078* 0.044* <br /> Barium 0.064* 0.030* <br /> Beryllium 0.0072* ND <br /> Cadmium ND ND <br /> Cobalt 0.015* ND <br /> Chromium 0.058 0.015* <br /> Copper 0.016* 0.012* <br /> Iron 0.037* 0.091 <br /> Manganese 0.0068* 0.0056* <br /> Nickel ND 0.022* <br /> Lead 0.051* ND <br /> Antimony ND ND <br /> Selenium ND ND <br /> Tin (pg/1) 62* 130* <br /> Thallium 0.053* 0.10* <br /> Vanadium 0.026* 0.024* <br /> Zinc 0.018* 0.024* <br /> Metals (EPA 6000/7000 Series) <br /> Hexavalent Chlor-10i 0.058 0.00 75 <br /> Mercury(Ng/I) ND ND <br /> ' Cyanide (Total) ND ND <br /> Sulfide ND 0.56 <br /> Total Organic Carbon ND ND <br /> ' Organophosphorus Pesticides WWI) (EPA 8141 A) ND ND <br /> ' Chlorinated Herbicides WWI) (EPA 8151 A) <br /> Dinoseb 0.38* ND <br /> Semivolatile Organic Compounds (ug/I) (EPA 8270C) <br /> Bis(2-ethylhexyl)phthalate 3.6* ND <br /> NR= Not Required <br /> ND= Not Detected <br /> NE= Not Established <br /> *Trace Concentration (estimated value) <br /> Corral Hollow Landfill Department of Public Works/Solid Waste <br /> 4T"Qtr/Annual 2003 Groundwater Monitoring County of San Joaquin-January 28,2004 <br />