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u <br />C <br />Li <br />C <br />u <br />0 <br />L' <br />G' <br />L <br />u <br />C <br />I <br />u <br />n <br />u <br />LOG OF EXPLORATORY BORING <br />PROJECT NUMBER 939-02.06 BORING NO. P-2 <br />PROJECT NAME San Joaquin Landfill Development Site PAGE 1 OF 3 <br />BY BAB DATE 6/05-06/87 SURFACE ELEV. 107.72 <br />REMARKS <br />Drilled with hollow -stem auger drilling equipment to a total depth of 40.5 <br />feet. Sampling was performed by driving a 2 -1/2 -inch ID split -spoon <br />sampler. Boring was converted to a 2 -inch diameter permeameter (see <br />Plate ). <br />01 ATr' A_r, <br />POCKET <br />PENETRA- <br />SANDY, CLAYEY SILT, light brown (7.5YR, <br />LITHO - <br />TORVANE <br />PENETRO- <br />TION <br />z <br />_ <br />N <br />GRAPHIC DESCRIPTION <br />to coarse-grained sand; slight <br />METER <br />,�'" > <br />a <br />(TSF) <br />(TSF) <br />(Blows/ <br />Ft.) <br />3J <br />v <br />w <br />` <br />w <br />COLUMN <br />fine to medium -grained, trace coarse- <br />c <br />grained sand; quartzose; slightly <br />REMARKS <br />Drilled with hollow -stem auger drilling equipment to a total depth of 40.5 <br />feet. Sampling was performed by driving a 2 -1/2 -inch ID split -spoon <br />sampler. Boring was converted to a 2 -inch diameter permeameter (see <br />Plate ). <br />01 ATr' A_r, <br />ML <br />SANDY, CLAYEY SILT, light brown (7.5YR, <br />6/4); slightly clayey; 20(+)% fine - <br />to coarse-grained sand; slight <br />plasticity; dry. <br />@-2': yellowish red (5YR, 5/6); 30% <br />fine to medium -grained, trace coarse- <br />grained sand; quartzose; slightly <br />damp. <br />SILT, reddish yellow (7.5YR, 6/6); 15- <br />511 <br />11LJ <br />20% fine- to medium -grained sand; <br />SM <br />dry. <br />@4°: becomes slightly clayey; grades <br />to sandy silt below 4.5'. <br />SILTY SAND, strong brown (7.5YR, 5/6); <br />10-30% fines; fine grained; mica- <br />ceous; damp. <br />SP <br />..... SAND, light yellowish brown (10YR, 6/4); <br />medium grained; quartzose with 30% <br />34 10 SM <br />mafic; 10% mica flakes; very poorly <br />graded; subangular grain shape; <br />slightly damp. <br />SILTY SAND, brown (10YR, 5/3); 39% <br />fines; very fine to fine grained; <br />denser than sand above; trace iron <br />stains. <br />@15': light brownish gray (10YR, <br />6/2); 46% fines; very fine to fine <br />15 <br />grained; minor and manganese stains; <br />56/ <br />trace fine root holes; damp. <br />1014 <br />@16'• strong brown (7.5YR, 5/6); 15- <br />ML <br />25% fines; fine graaned; minor medium <br />to coarse grained; 95(+)% quartz <br />iron oxide coated; slightly damp. <br />SANDY SILT, yellowish red (5YR, 4/6); <br />49.5% predominantly fine- to medium - <br />53/ <br />grained sand; damp. <br />10.5F'° ,n <br />REMARKS <br />Drilled with hollow -stem auger drilling equipment to a total depth of 40.5 <br />feet. Sampling was performed by driving a 2 -1/2 -inch ID split -spoon <br />sampler. Boring was converted to a 2 -inch diameter permeameter (see <br />Plate ). <br />01 ATr' A_r, <br />