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�.° tea: .,�� •- <br /> s. <br /> Environmental LOG OF BORING NO. B-1 i PAGE <br /> Science & -2— of_2_ <br /> a Engineering, Inc. PROJECT NO:02-531-001 DATE:5/15/90 <br /> 597 Center Avenue, Suite 350 CLIENT: DELTA TRUCK SALES <br /> Martinez, California 94553 REF, ELEV. <br /> 415-372-3637 SITE LOCATION:S70CKTQN, CA <br /> METHOD.HOLLOW-STEM <br /> } — BORING LOCATION.AROUND UNDERGROUND AUGER <br /> U F- o_ o STORAGE TANKS <br /> a v \ o y a DRILLER.GREGG DRILLINGC-L HOLE DIA.7 INCHES Z <br /> o_ <br /> O O Z w w LAGGED 13Y: PAUL GRAFF 0 <br /> v SUPERVISOR:SUE WICKHAM, RG-3851 <br /> N <br /> F, DESCRIP7101,q v <br /> I 3a <br /> 25 84 310GFT ML SILTY CLAY OR CLAYEY SILT, as above, but more clay, slightly <br /> s dry, not very plastic, moderately stiff D <br /> D <br /> l <br /> ME SILT, leas clay then above, drier <br /> 35 <br /> f 26 78 31G <br /> 5FT ML SILT, os above,•faint odor D <br /> IAS v <br /> 40 D <br /> RING ® D <br /> 16 76 40 FT ML As above, same odor <br /> 45 <br /> RING 0 <br /> 50 92 45 FT ML CLAYEY SILT, as above, but more clay, odor D <br /> 1� D <br /> 50 <br /> ff 25 42 So FT ML As above, drier, some gray matter, no odor <br /> ka <br /> TOTAL DEPTH=50 FEET <br /> 1- Boring back-filled witr; 3/S :n tentonite hole plug to surface <br /> E COMMENTS: <br /> ------ -- -------- - ------- <br /> 1� Sampling Interval <br /> l : <br /> Sample sent to labratory for analysis <br /> e _ <br /> E� <br /> c <br /> ,, t <br />