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PARKER ENVIRONMENTAL SERVICES <br /> LOG OF WELL SAMPLING ACTIVITIES <br /> Cheaper Store#37 <br /> Well Identification MW-5 Project Dame 15 East Grantl ne Road,Tracy,CA Date 02123/99 <br /> Sampled by James Lowe Weather Conditions <br /> Well Location Well Casing Diameter 2-4nch Depth of Well Casing 1490 <br /> Measuring Point Top of PVC Casing Initial Depth to Water 516 Final Depth to Water Not measured <br /> Casing Volume(1 vo113 vol) 159/476 Weil Borehole Volume <br /> Purging Method Centrifugal Pum enstaltic Pump Sampfing Method Peristaltic Pump <br /> Grundfos Submersible Pump Grundfos Submersible Pum <br /> Centnfugal Pump/ES-60 Submersible Teflon Bailer <br /> ES-40/-60 Submersible Pump X ES Sub Pump <1 Umin X <br /> Purging Rate See below Total Discharge 65 Casing Volumes Purged 409 <br /> Comments <br /> Waste Water Disposal To drum <br /> Starting Time 1416 <br /> i <br /> Time Pump on <br /> Date Time Gal Purged g pH T deg F Diluted S C Dd Factor 5 C ( S/cm) Color <br /> 02123/99 x <br /> 1425 500 804 667 x - 2130 <br /> 1427 550 805 671 x = 2130 <br /> 1428 600 809 668 x = 2130 <br /> 1430 650 809 672 x - 2130 <br /> x <br /> x - <br /> x - <br /> x <br /> X. - <br /> x I = <br /> Sample Identification 91137/MW-5 Sample Time 14 31 <br /> TURBIDITY ANALYSIS <br /> Finishing Time Time Analyzed NTU Value <br /> I <br />