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Environmental LOG OF BORING NO. B-4 PAGE -j.., of--L- <br /> Science & PROJECT NO 02-531-001 DATE 5/14/90 M <br /> Engmeering, Inc <br /> 597 Center Avenue, Suite 350 CLIENT DELTA TRUCK SALES REF ELEV <br /> Martinez, California 94553 SITE LOCATION STOCKTON. CA METHOD HOLLOW--STEM <br /> 416-372-3637 AUGER <br /> BORING LOCATION OUTSIDE TANK AREA Z <br /> HOLE DIA 7 INCHES O <br /> Utk <br /> a Lj x 5 a DRILLER GREGG DRILLING 0 <br /> ILO 3 U a' Z a LOGGED BY PAUL GRAFF 15 <br /> J m [aif ¢ z g SUPERVISOR SUE WICKHAM, RG-3851 N <br /> 4. J Z <br /> =1:51 <br /> " DESCRIPTION ov <br /> p ASPHALT <br /> CL CLAY, black, stiff, no odor 7 N7 <br /> 0 <br /> ML <br /> 5 RING ® SILT, medium—blown, loose, very fine—grained, no odor, dry <br /> 10 5 5 FT 0 <br /> t 0 <br /> Q <br /> Q <br /> 10— RING 0 IV <br /> 25 3 10 FT ML AS ABOVE, but more dense, drier, no odor <br /> I <br /> Q <br /> 15 RING <br /> 20 4 15 pI ML AS ABOVE, no odor <br /> TOTAL DEPTH=15 FEET <br /> i <br /> Boring back—filled with 3/e bentonite hole plug to surface <br /> COMMENTS <br /> 2a Sampling Interval <br /> Sample sent to laboratory for analysis <br />