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Wright Environmental Services, , .,� Tracy, C.4 Explr tory Boring Log pg 4 of 4 <br /> Project No. 4062R Boring/Well No. MW-1 Well Installed: 2" dia. Sch 40 PVC <br /> Client:Linden School District Date Drilled: July 28, 1995 Total Depth: 119.5';Casing Depth: 118' <br /> Location: 7007 Pezzi Rd, Stockton, CA Logger. CMP Screen Length and Size: 20' of 0.020" <br /> Drilling Method: 8" OD Hollowstem Driller: Spectrum Top of Sand Pack: 96 ' Sand Size: 2/12 <br /> Permit: PHS/EHD #!'005750 Top Bentonite: 93' Cement Grout Seal: 93' to 1' <br /> Water Levels: 1st Enc: 105' Static: 104.35 Surface vault box <br /> 08:21 am 7/28/95 <br /> Sample Blow a Depth Borehole <br /> No. OV Count E (ft) Lithology Log Completion <br /> 115 <br /> driller calls change at 118 feet <br /> Mw-1-22 ND 28 ML - Sandy SILT,light olive gray 2.5YR5/4, fine sand 40%, <br /> 12slit 60%, caliche, subparallel beds to massive, very stiff, <br /> Vdamp to very moist. <br /> Bottom of Boring = 119.5 feet <br /> Note: Ambiant OV measures from 3 to 0 ppm, <br /> ND=none detected <br /> Reviewed by CEG <br />