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PARKER ENVIRONMENTAL SERVICES <br /> LOG OF WELL SAMPLING ACTIVITIES <br /> Cheaper Store#37 <br /> Well Identification MW-1 Project Name 15 East Granuine Road Tracy,CA Date 02/23/99 <br /> Sampled by James Lowe Weather Conditions <br /> Well Location Well Casing Diameter 2-inch Depth of Well Casing 2700 <br /> Measuring Point Top of PVC Casing Initial Depth to Water 574 Final Depth to Water Not measured <br /> Casing Volume(1 VoIJ 3 vol) 347/1040 Well Borehole Volume <br /> Purging Method Centrifugal Pum enstatttc Pump Sampling Method Peristaltic Pump <br /> Grundfos Submersible Pump Grundfos Submersible Pump <br /> Centnfugal Pump/ES-60 Submersible Teflon Bailer <br /> ES-40/-60 Submersible Pump X ES Sub Pump @ <1 L1min X <br /> Purging Rate See below Total Discharge 1190 Casing Volumes Purged 343 <br /> Comments <br /> Waste Water Disposal To drum <br /> Starting Time 1135 <br /> Time Pump on <br /> Date Time Gal Purged PH T deg F Diluted S C Dil Factor S C ( S/cm) Color <br /> 02/23199 <br /> x <br /> 1152 1040 822 71 2 x = 1783 <br /> 11 54 1090 821 71 2 1 x - 1796 <br /> 71 56 1140 818 716 x - 1788 <br /> 11 58 1090 817 718 x = 1799 <br /> x - <br /> x <br /> x - <br /> x - <br /> x - <br /> x = <br /> Sample Identification 91/37/MW-1 Sample Time 1159 <br /> TURBIDITY ANALYSIS <br /> Finishing Time Time Analyzed NTU Value <br />