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Groundwater Monitoring Well Sampling Field Log <br /> f ,Project <br /> Pro ect Name CTL QMR <br /> Pro ect Address 3105 S EI Dorado Street <br />' Stockton, CA 94526 <br /> Date of Sampling 1-Feb-03 <br /> Name of Sampler Dawn Sorenson <br /> i <br /> ' GW Monitoring wells <br /> Well No (Designation) MW-4 <br />' <br /> Casing Diameter 2" <br /> Seal at Grade -T e/Condition Good <br /> Well Ca - Type/Condition Good <br />' Elevation of TOC -ft above MSL 1235 <br /> Depth of Well -ft 50 <br /> Depth to Water-ft 3095 <br /> Floating Product None <br /> Required GW Purge Before Sampling $ gal <br /> Actual GW Pure Before Sampling 12 gal <br /> Appearance of Pure Water Dk Grey <br /> s s <br /> GW Monitonng Samples <br /> 10 Pump Volume pH Conductivity Temperature Water Level Removal Volume <br /> 0 669 1436 204 <br /> 4 669 1427 21 <br /> 8 671 1428 213 <br /> 12 67 1425 21 5 <br /> 7 <br /> F i ��,y p fi 3 I tri (S fi 5 i fly l �I <br /> r wl Ml i i�f� R x€� s ' rY Yt > ri�q s 'It r h t lV <br /> " <br /> LJ e a ri <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 /> sheen <br /> • <br /> Environeering, Inc PO Box 2498 Danville, CA 94583 SF MW 1-4 2-1-03 xis <br />