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SOIL BORING LOG Boring No. MW-5 Sheet 4 of 4 <br /> Client Arco Station 2186 Date 8114101 <br /> Address 3212 North California Street Drilling Company: Woodward Drilling Company rig e:BK-81 <br /> Stockton,CA Driller. Frank Ramirez <br /> Project No. 0000-330 Method Hollow Stem Auger hole diam,�8" <br /> Logged By: Scott 131ttinger <br /> Sam le Blow Sam le welt Q'epth Oescriptiops 0i Materials PID <br /> Coii'strgc; UNd <br /> Tyle No. Count Tlme R.:V. iL Scale COL'UMN' and Ccht itlons (PPM <br /> 25 — <br /> S "W5-61 50 7:58 70 a i ML SANDY SILT,brown,15-20%fine gained sand,moist-wet,hard <br /> 6 2 <br /> 8 3 <br /> 6 4 <br /> 6 5 <br /> S MWS-66 9 8:05 40 6 6 SW SAND fine to coarse grained,medium Rraded, °fn 1 fines <br /> -•_ «... -�12-- ------ -- —_ loose - <br /> 6 7 <br /> Ba <br /> $ 8 <br /> 7 0 <br /> 8:20 30 7 1 SW SAND,fine to coarse grained,medium_radeLl%fines_very wet_— — — 2 <br /> _ loose <br /> 7 2 <br /> i3 <br /> 7 4 <br /> 7 5 <br /> — 8:35 --25 7 6 SW SAND,fine to medi2m�ralnet!!5o coarse gained sand.3-5%fines, » 4.1 <br /> _ very wet,loose <br /> 7 7 <br /> 7a / <br /> 7 9 <br /> _ CLAY,light brown with white caliche and black manganese,dam <br /> 5 MW5-81 9:00 60 a D CL very hard <br /> Comments:Total depth of boring is 81 feet bgs. <br /> Well surged for 10 minutes prior to installing sanitary seal. <br />