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1TABLE 2 <br /> FOOTHILL SANITARY LANDFILL <br /> FIRST SEMESTER 2007 GROUNDWATER MONITORING RESULTS <br /> (Units mg/I unless noted) <br /> tSampling Designation MW-1 Resam le MW-2R Resam le MW-3 Resam le Co:n::c::] <br /> Sampling Date 1/31/07 4/4/07 1/31/07 4/4/07 1/31/07 4/4/07 Limits <br /> ' TOC Elevation 256.25 256.25 269.95 269.95 318.32 318.32 NR <br /> Depth to Groundwater 205.86 205.96 254.26 254.30 271.14 271.13 NR <br /> Groundwater Elevation 50.39 50.29 15.69 15.65 47.18 47.19 NR <br /> Temperature('C) 14.8 17.5 16.8 NR <br /> ' field <br /> Chloride 6.1 6.2 11 9.8 <br /> Nitrate as Nitrogen 3 2.7 6 6.7 <br /> Total Dissolved Solids 170 160 180 280 <br /> Sulfate 5 2.1 6.3 11 <br /> H units field 7.37 7.58 7.34 5.8-9.1 <br /> Electrical Conductivity 393 205 358 530 <br /> ' uS/cm field <br /> Turbidity NTU field 13.9 18.1 11.8 48 <br /> Calcium 18 15 21 30 <br /> Magnesium 9.6 7.6 11 25 <br /> Potassium 3.1 3.3 5.3 19 <br /> Sodium 13 13 18 18 <br /> Bicarbonate Alkalinity 110 99 130 130 <br /> Total Alkalinity 93 81 100 120 <br /> Acetone 4.6* ND 4.5* ND 6.0* ND detect <br /> All Other Compounds ND ND ND detect <br /> Foothill Sanitary Landfill 12 Department of Public Works/Solid Waste <br /> 1s`Semester Groundwater Monitoring County of San Joaquin-July 31,2007 <br />