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TABLE 1 <br /> FOOTHILL SANITARY LANDFILL <br /> SECOND SEMESTER 2003 GROUNDWATER MONITORING RESULTS <br /> (Units mg/I unless noted) <br /> Sampling Designation MW-1 MW-2R LW-1 MW-3 Conc. <br /> 8/13/200 8/13/200 8/14/200 8/14/200 <br /> Sampling Date 3 3 3 3 Limit <br /> Monitoring and Field Parameters <br /> ' Elevations <br /> Top of Casing Elevation (ft) 254.69 296.24 317.35 NA <br /> Depth to Groundwater(ft) 205.18 254.12 ( 271.27 NA <br /> Groundwater Elevation (ft) 49.51 42.12 46.08 NA <br /> General Water Quality Parameters <br /> Temperature(°C)(field) 21.6 21.919 19.6 NA <br /> Electrical Conductivity(pS/cm) <br /> � . <br /> (field) 208_ 203 ; 274 349 <br /> pH (units) (field) 7.42 6.58 5 7.02 6.3-8.9 <br /> 41- <br /> Turbidity (NTU) (field) 12.6 5.2 r z � 6.7 47' <br /> Total Dissolved Solids 170 1501 ` 190 240 <br /> Chloride 6.4 6.7 " 11 9.6 <br /> Sulfate 6.3 2.4 xr 7.6 8.7 <br /> Nitrate - Nitrogen 3.3 3.1 3.8 3.3 <br /> Carbonate ND ND �# ND 0.808 <br /> Bicarbonate 96 84F 110 120 <br /> Calcium 19 15 25 NE <br /> Magnesium 9.7 8.613 NE <br /> Potassium ND 1.4 �� 1.5 NE <br /> Sodium 11 12 <br /> 18 NE <br /> Volatile Organic Compounds (ug/L) ,�a � <br /> Acetone {1.0*} {0.90*} r� {1.4*} detect <br /> Chloromethane {0.19*} ND „r 1 {0.22*} detect <br /> Methylene chloride {0.24*) ND } {0.28 } detect <br /> All Other Compounds ND ND � ND detect <br /> u nx . <br /> 'Concentration Limit established using statistical analysis <br /> NA= Not Applicable <br /> ND = Not Detected <br /> ' NR= Not Required <br /> NE = Not established due to insufficient data <br /> {X} Parameter also detected in one or more quality control blanks <br /> Trace concentration (estimated value) <br /> ft <br /> i li " rt f ttonh " �.! <br /> Foothill Sanitary Landfill Department of Public Works/Solid Waste <br /> 2ND Semester/Annual 2003 Groundwater Monitoring County of San Joaquin-Revised June 29,2004 <br />