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Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> rolect No 4090 BoringlWell No PB-14 Well Installed No <br /> Vocent Cox $ Cox Date Drilled April 25, 2000 Total Depth 28' <br /> to Surface <br /> ation 595 E lith St , Tracy, CA Logger CMP Cement Grout Seal 28` <br /> Drilling Method 3° OD Direct Push <br /> Permit: PHS EHD SR 0121996, dated 1-10-2000 <br /> Water Levels 1st Enc 13' - 14'? Static NM <br /> Borehole <br /> Sample E Depth Ltthology Log Completion <br /> No PID Push cn {ft} <br /> Road Base <br /> nand CL - Silty CLAY, dark brown 10YR513, low plasticity, of <br /> "Gred <br /> to sand <5%, stiff, damp <br /> 5 loot � <br /> 5 Same as above, color change to brown 10YR413, stiff, damp <br /> Pa-+4 0 Push <br /> - � 1 <br /> 10 ; <br /> CL - Sandy CLAY, yellowish brown 10YR516, low plasticity, ;.w. <br /> P-2+4 0 Push of sand 20%, crudely bedded, stiff, damp to moist ;A; <br /> Rods wet 13 - 14 feet ~' <br /> 15 <br /> PB-+40 Push SP - SAND, brown 10YR513, f sand 90%, fines 10% and <br /> 3 nonplastic, dense, saturated below 12 to13 feet <br /> r' <br /> 20 <br /> Pg-+4Q ML - Clayey SILT, yellowish brown 10YR513, very low <br /> Push <br /> 4 plasticity, of sand 20% massive to crudely bedded, firm, damp <br /> 25 <br /> Borehole flows, lost sample, borehole collapses, redrive rods <br /> Pe-+4 NR Pusn <br /> s to cement <br /> Sampler direct pushed <br /> unless stated otherwise <br /> NR- No PID Reading <br /> Reviewed by RG/CEG <br />