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F� <br /> :'-$ <br /> Environmental LOG OF BORING N0. UST-1 PAGE t- of-2- <br /> DYE <br /> Science & PROJECT NO; 02-531-003 DATE: 9/19/90 THROUGH <br /> A aOW Ca"+ Engineering, Inc. CLIENT:DELTA TRUCK SALES 9/21/90 <br /> 577 Center Arcuue, Suite 350 SITE LOCATION: STOCKTON, CA REF. ELEV.: <br /> Martinez, Ce'a.fornia 94553 METHOD: HOLLOW <br /> 415-3`.'274,-WE <br /> BORING LOCATION:SEE MAP STEM AUGER <br /> UST-1 WELL <br /> E HOLE DIA.:10 1/4' _ <br /> _. 1z 0 .aa. DRILLER:EXCEL TECH.. <br /> o p aLa!!: LOGGED BY:OLIVER CHRISTEN a <br /> v 0 <br /> mSUPERVISOR:SUSAN WICKHAM. RG. 3951 sL &. 1 <br /> kIlAAAA- <br /> -- a" DESCRIPTION �u <br /> 0 SURFACE: W thick concrete <br /> CL CLAY, black firm, moderate) <br /> -- 2 � y plasttc, odor <br /> 4 SANDY SILT. rev black g f . some clays, aoH, damp, <br /> ML <br /> hydrocarbon odor <br /> 8 <br /> 10 RING O <br /> 14 Y0 FT ML AS ABOVE <br /> 20 14 45 RING o SM SILTY SAND, brownish. wall graded, medium-grolned, <br /> 20 Ff loose, damp, very strong odor <br /> 'Ad <br /> so- <br /> 421781RIOG T ML CLAYEY SILT, brown, danso, no odor <br /> e <br /> r� <br /> 40 RING 9 <br /> I 42 36 AO FT ML AS ADOVE, very dense, hydrocarbon odor <br /> 1r0 tj <br /> Rrf <br /> ;t <br /> 50 <br /> -- - - ----- - —CLAYEY-SiLT,-brown,-some-medium-medium -aand. very <br /> .� 9 ry- <br /> 22 7 $0 ML dense, strong odor <br />