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TABLE 1 <br /> FOOTHILL SANITARY LANDFILL <br /> FIRST SEMESTER 2003 GROUNDWATER MONITORING RESULTS <br /> (Units mg/I unless noted) <br /> Sampling Designation MW-1 MW-2 MW-3 Conc. <br /> Sampling Date 1/29/03 1/29/03 1/29/03 Limit <br /> Monitoring and Field Parameters <br /> TOC Elevation 256.25 269.95 318.32 NA <br /> ' Depth to Groundwater 204.73 223.62 270.30 NA <br /> Groundwater Elevation 51.52 46.33 48.02 NA <br /> ' General Water Quality Parameters _ <br /> Temperature(oC)(field) 16 15.9 16.1 NA <br /> Electrical Conductivity(NS/cm)(field) 379 369 377 408' <br /> pH (units)(held) 6.7 6.81 6.69 6.3-8.9 <br /> Turbidity(NTU) (field) 2.9 3.9 3.1 50' <br /> Total Dissolved Solids 180 160 190 240 <br /> Chloride 6.7 7.7 11 9.6 <br /> Sulfate 6.5 2.1 7 8.7 <br /> Nitrate-Nitrogen 3.2 3.5 3.8 3.3 <br /> Carbonate ND ND ND 0.808 <br /> Bicarbonate 97 78 110 120 <br /> Calcium 19 18 21 TBD <br /> Magnesium 9.8 7.8 11 TBD <br /> Potassium 3.3 ND 2.9 TBD <br /> Sodium 11 9.3 15 TBD <br /> Volatile Organic Compounds (ug/L) <br /> Acetone 2.5 ND ND detect <br /> ' All Other Compounds ND ND ND detect <br /> Concentration Limit established using statistical analysis <br /> NA= Not Applicable <br /> ND= Not Detected <br /> NR= Not Required <br /> "=Trace concentration (estimated value) <br /> Foothill Sanitary Landfill 10 Department of Public Works/Solid Waste <br /> Vt Semester 2003 Groundwater Monitoring Report County of San Joaquin-July 29,2003 <br />