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PARKER ENVIRONMENTAL SERVICES <br /> LOG OF WELL SAMPLING ACTIVITIES <br /> Cheaper Store 4 37 <br /> Well Identification MW-1 Project Name 15 East Grardline Road,Tracy,CA Date 6/27199 <br /> Sampled by James Lowe Weather Conditions <br /> Well Location Well Casing Diameter Depth of Well Casing 2700 <br /> Measuring Point Top of PVC Casing Initial Depth to Water 660 Final Depth to Water Not measured <br /> Casing Volume(1 vol 13 vol) 3325/99756 Well Borehole Volume <br /> Purging Method Centnfugal Pump/Pertstaftic Pump Sampling Method Penstaltic Pump <br /> Grundfos Submersible Pump X Grundfos Submersible Pump X <br /> Centrifugal Pump/ES-60 Submersible Teflon Bader <br /> ES-40/-60 Submersible Pump ES Sub Pump @<1 L/min <br /> Purging Rate See below Total Discharge 115 Casing Volumes Purged 346 <br /> Comments <br />• Waste Water Disposal To drum <br /> Starting Time 925 <br /> Time Pump on <br /> Date Time Gal Purged pN T deg F Diluted S C Dl Factor S C (PS/cm) Color <br /> 627/99 <br /> x <br /> 932 95 816 703 x = 1670 <br /> 933 10 815 700 1 x - 1705 <br /> 934 105 814 702 x - 1724 <br /> 9 35 11 813 701 x = 1742 <br /> x - <br /> x = <br /> x - <br /> x - <br /> x <br /> X. <br /> Sample Identification 92137/MW-1 Sample Time 936 <br /> TURBIDITY ANALYSIS <br /> Finishing Time Time Analyzed NTU Value <br />