Wright^Environmental Services, Inc , Tracy, CA Exploratory Boring Log
<br /> 41
<br /> Project No 4070 Boring/Well No B-14 Well Installed No
<br /> Client M & M Auto Date Drilled July 27, 2000 Total Depth 32'
<br /> Wocation 60 E loth St Tracy, CA Logger CMP Cement Grout Seal 32' to surface
<br /> Drilling Method 3" OD GeoProbe
<br /> Permit SJ PHS EHD 00023044
<br /> Water Levels 1st Enc 15'+ ® 09 35 Static 15'
<br /> Sample Blow a Depth Borehole
<br /> No PID Count CO( f#) Lithology Log Completion
<br /> rn
<br /> Concrete
<br /> Pea Gravel FILL, backfill of excavation, med dense, damp
<br /> 6 t4 1 0 Push 5 Same as above, pea gravel caving
<br /> @6
<br /> Driller calls near base of fill
<br /> 8 14 1 1 700 Push 1 0 CL - Silty CLAY stained gray, low plasticity, v f sand <5%,
<br /> 911 rootlets in clay, weak petroleum odor, firm, damp
<br /> Same as above, firm, damp
<br /> B 14 1 2 5 7 Push
<br /> @16 15 SC-SP - Clayey SAND to SAND, gray stain(?), slight plasticity, „
<br /> clay 10%, f sand 90%, massive, med dense, saturated
<br /> below 15 feet
<br /> Pushes hard 19 to 20 feet
<br /> 8 14 1 NR Push 20 Lost sample, cuttings on tip are SP-SAND, dark brown 10YR4/3,
<br /> d21 no stain or odor, reset and redrivE
<br /> 4291 6 1 Push SP-SW - SAND, varngated, sand 90%, fines X10%, local lag h
<br /> gravels, crudely bedded, grain defined bedding, med dense,
<br /> saturated
<br /> 25
<br /> Same as above, very clean sand, 2-inch thick clay interbed
<br /> 6141
<br /> 428 3 3 Push at 27 feet
<br /> SM - Silty SAND, olive brown 2 5Y4/4, f sand 70%, silt ~
<br /> 10-20%, clay 5-10%, massive to crudely bedded, med dense,
<br /> saturated,
<br /> a 1a , 4 2 Push 30 Same, contains thin 2-4-inch clay Enterbeds at 31 8-32 feet,
<br /> 032
<br /> clay damp
<br /> Bottom of Boring = 32 feet
<br /> Reviewed by RG/CEG
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