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NESTED AIR SPARGE AND SOIL VAPOR EXTRACTION WELL LOG <br /> PROJECT NAME San Joaquin County Motor Pool UST Site LOG OF WELL AS-'I/SVE-213 <br /> SITE ADDRESS 1810 E Hazelton Avenue BORING DIAM (In) 10 <br /> Stockton California WELL DIAM to 2 <br /> ' DATE STARTED February 24 2005 DRILLER/COMPANY Van Leonard <br /> DATE COMPLETED February 25 2005 Woodward Drilling C 57#710079 <br /> DRILLING METHOD Hollow-stem Auger(BK-81) GEOLOGIST/ENGINEER R David Smith R G <br /> Split-spMn sampler Ramage Environmental <br /> 2 <br /> 0 <br /> LL <br /> m a F ri <br /> H Lu O J U7 <br /> a a to <br /> 2 <br /> LL <br /> 13 m m EL o V) z �y DESCRIPTION p <br /> 0 fill Four inches of asphalt Hand dug to 4 feet .t 0 <br /> GRAVELLY SAND Dark yeiowtsh brown moist loose excavation <br /> barJ fill <br /> SW <br /> fill <br /> 5W45 43 rJ <br /> ' SANDY GRAVELLY CLAY Moderate yellowish brown moist medium <br /> 10 228 stiff excavation backfill 10 <br /> CL <br /> fill <br /> 1 ' s <br /> 15 209 GRAVELLY SAND WITH CLAY Moderate yellowish brown loose 1$ <br /> SW! excavation backfilF <br /> SC <br /> fill <br /> 20 256 SILTY CLAY Moderate yellowish brown moist medwm stiff low 20 <br /> s plasticity odor native material <br /> CL Silt content increases at at 25 feet trace mica odor <br /> 25 666 SVE 2 25 25 <br /> 30 ;e 669 SVE 2 30 CLAYEY SILT WITH SAND Moderate yellowish brown slightly moist to 30 <br /> N moist stiff very fine micaceous sand odor <br /> ML Sand content decreases at 35 feet trace black organic matter <br /> 35 646 35 <br /> 40 634 SVE 2 40 SILTY SAND Moderato yellowish brown moist dense micaceous 40 <br /> SM 60%very tine sand 40%silt odor <br /> A �S <br /> 45 529 iSILTY CLAY Moderate yellowish brown mast very self organic 45 <br /> CL matter odor <br /> 1 <br /> 50 576 SVE 2 50 SANDY SILT Moderate yellowish brown moist to wet at 51 feet stiff 50 <br /> micaceous odor <br /> ML Saturated sail observed a1 51 feel bgs on 2!14/[75 <br /> 55 't'S 294 SVE 2 55 SILTY CLAY Pale yellowish brown moist stiff slight odor $$ <br /> ' CL 571 <br /> CLAY Moderate brown moist stiff low medium plaseaty <br /> s9 s <br /> sa so <br /> Terminated drilling at 55 feet sampled with spin spoon to 59 5leet <br /> Installed nested an sparge{AS f y and soil vapor extraction(SVE 213)well <br /> AS 1 Well KVA mreroporovs sparge point 2 inch diameter from 52 to 55 feet <br /> 65 Sparge point connected to 1 inch diameter PVC casing f to 52 feet 65 <br /> Sand(#3)from 50 to 55 feet hydrated bemomte from 45 to 50 feet <br /> SVE 28 Well Screen(0 020-inch)from 30 to 45 feet#3 Sand from 2810 45 feet <br /> Hydrated pentanite from 24 to 28 feet <br /> Neal cemenflbentonrte(20 1)grout from 2 to 24 feet <br /> Wellheads cam filed wnhrn 7&inch traffic rated s.curly bpx m conuete at grade <br /> 1 of 1 <br />