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Wright Environmental Services, Tracy, CA Exploratory Boring Log <br /> Project No. 4111 Boring/Well No. PB-1 <br /> Client: Haley Date Drilled: June 19, 1996 Weil Installed: No <br /> Location: 21000 Paradise Rd Tracy, CA Logger: CMP Total Depth: 15' <br /> Drilling Method: 3" OD GeoProbe Hydraulic Push Cement Grout Seal. treime 15' to surface <br /> Permit: CSJPHD 009344 <br /> Water Levels: 1st Enc: 10'? Static: 6.12' 0 9:17am <br /> m <br /> Sample a Depth Borehole <br /> 4 No. OV Push {ft} Lithology Log Completion <br /> ` Concrete and Subbase <br /> CL - Sandy CLAY,10YR4/6 dark yellowish brown, sand 30%, <br /> eas cob webby caliche, low plasticity, soft, damp. <br /> grab <br /> 5 lost sample 4-8 feet, re-push, sand returns 7.5-8.0 feet. <br /> eas <br /> SM - Silty SAND, 10YR4/6 dark yellowish brown, sand 80%, <br /> PB-1-2 silt 20%, fine grained, masive, Ibose-med dense, moist. <br /> re,ained CL - Silty CLAY, 10YR3/4, dark` yellosish brown, <br /> eas 10 low plasticity, soft, very moist- 1" water at 10.5 feet <br /> PB-1-3 _ <br /> grab <br /> eas <br /> SP-SM - Silty SAND to SAND, 10YR3/4, dark yellowish: brown, <br /> PB-14 <br /> grab - 15 sand 90%, siltl0%, saturated, contains thin clay interbeds <br /> slough to 14.6 <br /> Bottom of Borehole = 15 feet, <br /> push four foot. continuous acetate liners <br /> i <br /> Reviewed by RG/CEG <br />