|
Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log
<br /> A Project No 4070 Boring/Well No B-14 Well Installed No
<br /> vlient M & M Auto Date Drilled July 27, 2000 Total Depth 32'
<br /> ocation 60 E 10th 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 (ft) Lithology Log Completion
<br /> U)
<br /> Concrete
<br /> Pea Gravel FILL, backfill of excavation, med dense, damp
<br /> B141
<br /> es 0 Push 5 Same as above, pea gravel caving ^�^
<br /> Driller calls near base of fill
<br /> all
<br /> r 1 700 Push 10 CL - Silty CLAY, stained gray, low plasticity, v f sand <5%,
<br /> rootlets in clay, weak petroleum odor, firm, damp ,•,•
<br /> Same as above, firm, damp
<br /> B " ' 257 Push
<br /> els 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 /> B 44-1NR push Lost sample, cuttings on tip are SP-SAND, dark brown 10YR4/3,
<br /> ®21 — 20
<br /> no stain or odor, reset and rednve
<br /> B 14 1 va
<br /> 6 1 Push SP-SW - SAND, n ated, sand 90%, fines <10%, local la
<br /> Q29 9 9
<br /> gravels, crudely bedded, grain defined bedding, med dense,
<br /> saturated A'�+
<br /> 25
<br /> B 14-1 Same as above, very clean sand, 2-inch thick clay interbed
<br /> 028 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 /> 2 Push 30
<br /> 032 1 4 Same, contains thin 2-4-inch clay interbeds at 31 8-32 feet,
<br /> ®32
<br /> clay damp
<br /> Bottom of Boring = 32 feet
<br /> Reviewed by RG/CEG
<br />
|