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PORT OF STOCKTON BORING NO. B5-1 Stockton, California BORING LOCATION DATE STARTED DATE FINISHED Site 5350—ft. N., 200—ft. E. of int. Roads 21 & N 8/4/98 8/4/98 DRILLING AGENCY NORTHING EASTING ELEVATION Fisch Environmental Exploration Services I I Grade DRILLING METHOD BORING TOTAL DEPTH INAL STATUS GeoProbe 28 ft. Grouted DRILLING EQUIPMENT DEPTH TO FIRST r COMPL. r 24 HRS. GH-40 WATER NA NA NA SAMPLING METHOD LOGGED BY Cont. core Calvin P. Erdman SAMPLER TYPE RESPONSIBLE PROFESSIONAL REG.NO, Macro—core Calvin P. Erdman, R.G. 6732 CLy �_ o DESCRIPTION a i5 REMARKS p ¢ fns t m J 0 U for further details SILTY SAND (SM):dark grayish brown (IOYR 4/2),mostly v. f. gr. pip-0 ppm headspace sand,some slit,tr.-few med. crs. gr. sand,no odor or discoloration boring 2 i 4 - r- cont. silty sand,gravelly from 8 to 8-ft,poss. construction fill 6 deer. sand content 8 ' Water level measured @ CLAY (CL):It. yellowish brown (IOYR B/4),mostly day,little slit,few 8.9-ft. bgs v. f. gr. sand,st.-mod. moist,mod. plast,no odor or discolora- 10 tion PID-0 ppm, headspace cont. Clay-Silty Clay (CL): mod. moist,no product odor boring 12 SAND (SP):grayish brown (IOYR 5/2), si.-mod. moist SAND/SILTY SAND (SP/SM): grayish brown (2.5YR 5/2),mostly V. f. gr. sand,little silt,few clay,moist,pons. Y. weak product odor,no 14— discoloration CLAY (CL):grayish brown (10YR 5/2),mostly clay,tr.-few slit& v. f. r gr. sand,mod. moist,plast. i 16 Soil sample S-005 from 18.0 S-005 SAND (SP);It. brownish gray (10YR 0/2), mostly f.-med. gr. sand, to 18.5-ft. bgs little silt,weak product odor,wet,saturated PID-7-10 ppm, headspace CLAY (CL):gray,plast.,mod. product odor @ 18-f t. boring PID-3-5 ppm 18 CLAYEY SILT (ML):grayish brown (2.5YR 5/2),mostly slit,some day, sample (h ad pal eore baggie) mod. plast.,v. moist,weak product odor ProJect No. Figure No. 98117