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PARKER ENVIRONMENTAL SERVICES <br /> LOG OF WELL SAMPLING ACTIVITIES <br /> Cheaper Store#37 <br /> Well Identification MW-2 Project Name 15 East Grantline Road Tracy CA Date 02rZY99 <br /> Sampled by James Lowe Weather Conditions <br /> Well Location Well Casing Diameter- 2-inch Depth of Well Casing 2530 <br /> Measuring Point To of PVC Casin Initial Depth to Water 585 Final Depth to Water Not measured <br /> Casing Volume(1 volt 3 vol) 317/951 Well Borehole Volume <br /> Purging Method Centrifugal Pum enstaltic Pump Sampling Method Peristaltic Pump <br /> Grundfos Submersible Pump Grundfos Submersible Pump <br /> Centrifugal Pump1ES-60 Submersible Teflon Bailer <br /> ES401-60 Submersible Pump X ES Sub Pumpa1 Llmrn X <br /> Purging Rate See below Total Discharge 11 1 Casing Volumes Purged 350 <br /> Comments <br /> Waste Water Disposal To drum <br /> Starting Time 1218 <br /> Time Pump on <br /> Date Time Gal Purged I PH T deQ F Diluted S C DO Factor S C (PS/cm) Color <br /> 02123199 +X —+= <br /> 1231 96 830 720 2710 <br /> 1233 101 800 720 x = 2710 <br /> 1234 106 803 718 x - 2710 <br /> 1236 11 1 805 717 x = 2710 <br /> x - <br /> x - <br /> x - <br /> x - <br /> x <br /> x - <br /> Sample Identrfication 91f371MW-2 Sample Time 1239 <br /> TURBIDITY ANALYSIS <br /> Finishing Time Time Analyzed NTU Value <br />