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M ITTELHA USER <br /> corporation PAGE - DIF <br /> BORING NO 15-4 PROJECT NO 1742-01 PROJECT NAME UNOCAL TRACY <br /> BORING LOCATION 3766 TRACY-BOULEVARD, TRACY CALFORNIA ELEVATION AND DATUM <br /> ATE • TOM STARTED, DATE t TbfE FtN2HM <br /> DRILLINGAGENCY, CACHE Cmamx ORILLI G MILLER STEPKEN <br /> 7/10/91 1045 7/10/91 1106 <br /> DRILLING EQUIPMENT <br /> OMP ON BEDROCK DEPTH LOGGED BY CHECKED BY <br /> MMB <br /> FIRST WATER DEPTH NOT ENCOUNTER NO OF SAMPLES 2 <br /> DESCRIPTION REMARKS <br /> s <br /> Asphalt. r pea 9rdvtl <br /> SAND (3c). fin bi a-1. SM dttaahed Sa6 tq! s eallected using s <br /> Rght 9M In the 2.5-3 Cr lntervel, Sc dlegrmn 2-1/r oo ca0fomic fna�dwmd <br /> damp. pooAY cohosim apRt—p°0n dmnpkr Oned %ft <br /> bran clMw• d by a 140/ <br /> hammer fdllklg W. <br /> 7 <br /> 5 jSILTY CLAY (CH), grail. T T 47 <br /> 1l maltL cohea(ra 13 <br /> 8tcame■ brawn cloy with gray motUltng at 42 depth <br /> SILTY CLAY (CL). b-mm with gray matfling. CL <br /> endsL moderately edhetiw. <br /> 4plant Nbtrs. <br /> 5 <br /> t0 zz 3s <br /> 27 <br /> oorshole tombdtad at 10 5 feat, <br /> 15 <br /> 20 <br /> 25 <br />