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PORT OF STOCKTON BORING NO. B4-1 Ll Stockton, California BORING LOCATION DATE STARTED DATE FINISHED Site 4 —420—ft. E., 200—ft. N. of int. Rds. 21 8 K 8/4/98 8/4/98 DRILLING AGENCY NORTHING EASTING ELEVATION L Fisch Environmental Exploration Services Grade DRILLING METHOD 110111113 TOTAL DEPTH � FINAL STATUS J GeoProbe 20 ft. Grouted DRILLING EQUIPMENT DEPTH TO FIRST COMPL. 24 HRS. L' GH-40 WATER NA NA NA SAMPLING METHOD LOGGED BY LCont. core Calvin P. Erdman SAMPLER TYPE RESPONSIBLE PROFESSIONAL REG.NO. Macro--core Calvin P. Erdman, R.G. 6732 DESCRIPTION REMARKS U L ar En Q W Z _ E amp _, U for further details SILTY SAND (SM);reddish brown (5YR 4/3),mostly v. f. gi. sand, little slit G day,mottled red brown,cemented,dry,no product odor L2 CLAY (CL);gray (IOYR 5/1),mostly day,v. stiff,sL molst,high piast.,no product odor L4 L 6— cont. stiff,plastic clay,color change to graylsh.brown PIDppm,headspace boring r L 8 Water level measured @ L 8.3-f t. bgs L10 F S-W Soil sample S-001 from IL5 L to 12.0-ft. bgs 12 CLAY (CL):It. brownish gray (IOYR 8/2)sL moist,V. stiff,high plast.,mottled w/5-10mm dia. whitish patches,no rxn w/HCl,no PID-0 ppm,headspace product odor boring L 14 ----------------------------------------------- CLAYEY SAND (SC):brown (IOYR 5/3),mostly V. f.-f. Cr. sand, PID-0 ppm,headspace tittle clay,mod. moist,no product odor boring L SAND (SP):yellowish brown (10YR 5/4),mostly f. gr. sand,little 16 med. gr. sand,tr.-few slit and crs. gr. sand,wet,no product odor S_" Soil sample 5--002 from 18.5 to 17.0-ft. bgs CLAYEY SAND (SC):brown (10YR 5/3),mostly v. f.- f. gr. sand, 18 little clay, mod. moist,no Product odor s CLAYEY SANG (SC):yellowish brown (IOYR 5/4) Project No. Figure No. L98117