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Groundwater Monitoring Well Sampling Field Log <br /> � <br /> Project` <br /> S <br /> Pro ect Name CTL QMR <br /> Pro ect Address 3105 S EI Dorado Street <br /> 1 Stockton, CA 94526 <br /> Date of Sam lin 21-Mar-02 <br /> Name of Sampler Dawn Sorenson <br /> GW Monitoring Welts <br /> Well No (Desi nation MW-4 <br />' Cason Diameter 2" <br /> Seal at Grade - Type/Condition Good <br /> Well Ca- Type/Condition Good <br /> Elevation of TOC -ft above MSL 1235 <br /> De th of Well - ft 50 <br /> Depth to Water-ft 28 TJ*-y 2- <br /> !Floating Product slight sheen <br /> Required GW Purge Before Sampling 8 gal <br /> Actual GW Purge Before Sampling 15 gal <br /> Appearance of Pure Water med grey <br />� .� GW Monitoring Samples <br /> Pump Volume pH Conductivity Temperature Water Level Removal Volume <br /> 0 669 1438 204 <br /> 5 669 1427 21 <br /> 10 671 1428 213 <br /> 15 67 1425 21 5 <br /> + <br /> Comments - - <br /> No of Samples Collected annd Type, Sample Odor, Well Recharge, etc <br /> 5 analyses (THP-d, TPH-o, TPH-g, BTEX, MTBE/oxygenates) <br /> 2-1000 mL amber, 2-40 mL viols <br /> Recharge 1 hr <br /> slight hydrocarbon odor <br /> slightly silty <br /> Environeering, Inc PO Box 2498 Danville, CA 94583 SF MW 1-4 03-21-022 As <br />