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GRAPHIC GEOTECHNICAL BORING LOG PAGE _1_ OF CLIENT Mont ome Ward PROJECT NO 1232 DRILL HOLE B-11 SITE LOCATION 5400 Pacific Avenue, Stockton, California DRILLING CO Layne-Western Corp TYPE OF RIG CME-95 DRILLING METHOD/EQUIPMENT Contin Flight HSA HOLE DIAMETER 12" ' DRIVE WEIGHT/HEIGHT OF DROP 140#30" drop REFERENCE OR DATUM Ground Level START DATE 2123193 COMPLETION DATE 2123193 1DES CRI PTION pu ti —C7 d Su �Z R to Z a.0< 3a ur >[] ��t�-� In following Ordev, LITHOLOGY,calor,gtaire-size,sortlrv, arivLoan€%, it Qo C Wv 0Ce � �a �'+LtT�� fassds>#wislatar+9y,w0ili oog Z �i. ami raisiri� a �U � ' 0 3" thick asphalt pavement ' MAN-MADE FILL 3"-12' GRAVEL, light brown, fine, poorly graded, slightly moist, compact ' 5 t10 13 5 12'-13 5' SILT, gray, trace clay, most, compact, HC odor ' 150 13 5'-15' CONCRETE SLAB 15 7 1410 13 6 ML NATURAL GROUND 17 15'-16 5' SILT, light reddish brown, slightly mottled light 27 olive brown and dark brown, trace clay, slightly most, dense, sweetish HC odor 10 16 5'-20 5' SILT, light reddish brown, slightly mottled dark 20 30 1440 14 1 brown, trace coarse sand and clay, moist, dense, sweetish 47 HC odor 5 1455 16 8 20 5'-25 5' SILT, brown, mottled light olive brown with 25 12 black specks, trace clay, trace mica, moist, slightly dense, 19 sweetish HC odor 9 1514 20 1 25 5'-30 5' SILT, brown, mottled light olive brown with 30 29 black specks, trace fine gravel and clay, moist, dense, H37 sweetish HC odor Continued Next Page NOTES Boring was drilled through the former USTs concrete anchor slag ENVIRONMENTAL AUDIT, INC NOTE This Boring Log Represents Conditions Only at Time and Location Indicated Subsurface Conditions May Differ at Other Locations and Times LOGGED BY JLA DATE 2123193 APPROVED BY FSM RG # 4248