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Table 2 <br /> Foothill Sanitary Landfill <br /> Second Semester 2008 Groundwater Monitoring Results <br /> (Units mg/I unless noted) <br /> Sampling Designation MW-1 MW-2R MW-2R- MW-3 MW-4 MW-5 Conc. <br /> Resam led <br /> -Sampling Date 7/31/08 1 7/30/08 8/28/08 7/31/08 7/30/08 7/30/08 Limits <br /> Monitoring and Field Parameters <br /> Elevations <br /> TOC Elevation 258.43 299.62 299.62 320.75 341.57 256.52 NR <br /> Depth to Groundwater 206.42 254.70 NR 271.98 283.64 216.09 NR <br /> Groundwater Elevation 52.01 44.92 NR 48.77 57.93 40.43 NR <br /> General Water Qualitv Parameters <br /> Temperature (-C) 21.1 21.4 NR 21.7 20.1 21.7 NR <br /> field <br /> Chloride 5.64 5.44 NR 9.21 6.73 8.54 10 <br /> Nitrate as Nitrogen 2.84 2.5 NR 2.61 1.66 1.69 6.6 <br /> Sulfate 4.91 1.88 NR 6.04 9.6 9.99 8.8 <br /> H units field 7.11 6.98 NR 7.26 7.61 6.91 5.8-8.8 <br /> Electrical Conductivity NR <br /> uS/cm field) 368.9 188.1 254.9 271.8 250.8 440 <br /> Turbidity NTU field 9.3 10.6 NR 7.7 11.7 10.3 64 <br /> Calcium 19 15 NR 20 21 20 30 <br /> Potassium 3 3.3 NR 3.4 3.9 3.6 19 <br /> -Magnesium 11 8.1 NR 12 11 11 25 <br /> Sodium 11 12 NR 15 14 14 18 <br /> Alkalinity as CaCO3 94 82 NR 110 110 100 130 <br /> Carbonate Alkalinity as ND ND NR ND ND ND 2 <br /> CaCO3 <br /> Bicarbonate Alkalinity 110 100 NR 130 130 130 110 <br /> as HCO3 <br /> Hydroxide Alkalinity as ND ND NR ND ND ND (1] <br /> CaCO3 <br /> Total Dissolved Solids 130 190 NR 130 200 200 260 <br /> Volatile Or anic Com ounds u /L <br /> 1,1-Dichloroethene ND 0.46* ND ND ND ND detect <br /> Acetone ND 3.2* ND ND ND ND detect <br /> All Compounds ND ND NR ND ND ND detect <br /> NE = Not Established <br /> ND = Not Detected <br /> NM = Not Measured <br /> NR = Not Required <br /> *=Trace concentration (estimated value) <br /> Bold values indicate VOC detections <br /> Underlined values indicate concentration limit exceedences <br /> LW-1 sampling/testing is not part of the monitoring program <br /> 1 Not established due to>50% non-detects <br /> Foothill SanitaryLandfill Department of Public Works/Solid Waste <br /> 13 P <br /> 2nd Semester and Annual 2008 Groundwater Monitoring County of San Joaquin-January 31,2009 <br />