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Wright Environmental Services, Tracy, CA <br /> Exploratory Boring Log <br /> Project No 4889 BonnglWell No B-1 <br /> Chant City of Tracy Date Drilled Feb 14, 2003 Well Installed No <br /> .+ Location Waste Water Plant 3900 Holly, Tracy Logger CMP Total Depth <br /> Drilling Method 3" OD GeoProbe Cement Grout Seal 18 5'to Surface <br /> Permit PHS EHD ##32663 <br /> Water Levels 1st Enc 13 5' Static 11 9' @ 10 10 <br /> Sample Push 1► Depth <br /> No PID � � � Lrthology Log Completion <br /> Borehole <br /> Hand Augered to 5 feet ^�^; <br /> CL-Silty CLAY, brown 10YR413, low plasticity, no sand, stiff, damp ~ <br /> A~ <br /> A~ <br /> 5 <br /> 1 0 r3 Same as above, stiff, damp ^AA <br /> ' <br /> SAA <br /> a �^� <br /> ar z Same as above, crudely bedded, very stiff, damp <br /> Atz 0 E <br /> 10 <br /> n�A <br /> Same as above, crudely bedded, very stiff, damp, increasing ^"^ <br /> moisture 12-14 feet, becomes saturated at 13 5 feet <br /> rAa <br /> 8.13 <br /> ale 0 <br /> 15 SAND, brown 10YR4/3, nonplastic fines<10%, f sand 90%, contains <br /> very thin clayey interbeds, saturated Pushes hard to 17 feet <br /> A~ <br /> 1 n-4 V <br /> CL- Silty CLAY, brown 10YR413, lowlastrcit �f sand 55,massive <br /> to faintly bedded, very stiff, damp, driller calls push refusal at 18 5 feet <br /> A <br /> 20 <br /> S,ttsil <br /> Bottom of Boring = 18 5 feet, <br /> continuously cored at downgradient <br /> location from former UST location <br /> r <br /> Y <br /> Reviewed by RG/CEG <br /> t <br />