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EXPLORATORYLu"U"' OF PROJECT NUMBER 939-02.06 BORING NO. P-2 PROJECT NAME San Joaquin Landfill Development Site PAGE 1 OF 3 BY BAB DATE 6/05-06/87 SURFACE ELEV. 107.72 ML POCKET PENETRA-�_ LITHO - 70RVANE PENETRO- TION = to coarse-grained sand; slight N GRAPHIC DESCRIPTION METER = 4+ = a (810w®/ 3J W I!f( < COLUMN (TSF) (TSF) Ft.) v damp. W SILT, reddish yellow (7.5YR, 6/6); 15- 57.. C 20% fine- to medium -grained sand; ML SANDY, CLAYEY SILT, light brown (7.5YR, 6/4); slightly clayey; 20(.)% fine- I to coarse-grained sand; slight plasticity; dry. @-2': yellowish red (5YR, 5/6); 30% fine to medium -grained, trace coarse- grained sand; quartzose; slightly damp. SILT, reddish yellow (7.5YR, 6/6); 15- 57.. 20% fine- to medium -grained sand; SM dry. @4': becomes slightly clayey; grades to sandy silt below 4.5. SILTY SAND, strong brown (7.5YR, 5/6); 10-30% fines; fine grained; mica- ceous; damp. SP SAND, light yellowish brown (10YR, 6/4); medium grained; quartzose with 30% 34 10 SM mafic; 10% mica flakes; very poorly graded; subangular grain shape; slightly damp. SILTY SAND, brown (10YR, 5/3); 39% fines; very fine to fine grained; denser than sand above; trace iron stains. @15': light brownish gray (10YR, 6/2); 46% fines; very fine to fine 15 grained; minor and manganese stains; 56/ trace fine root holes; damp. 10" @16'• strong brown (7.5YR, 5/6); 15 - ML 25% fines; fine grianed; minor medium to coarse grained; 95(«)% quartz iron oxide coated; slightly damp. SANDY SILT, yellowish red (5YR, 4/6); 49.5% predominantly fine- to medium - 53/ grained sand; damp. 10.5° 20 REMARKS Drilled with hollow -stem auger drilling equipment to a total depth of 40.5 feet. Sampling was performed by driving a 2 -1/2 -inch ID split -spoon sampler. Boring was converted to a 2 -inch diameter permeameter (see Plate ).