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George's Service Project Name Page 1 of 1 Borehole No. MW-6 <br />425.2 Project No Date 4/30/97 Contractor V8cW Drilling <br />Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br />Geological Tec nics Inc. <br />„„„,„„„„A.,„„ „„„„„,„„,„, „„„,„„„„„„„, , ////////////////f/f/////////////////f/f/Borehole Log /,f,,/,,,,,,,,,,/,,,,, <br />Area & County Corner of Durham Ferry Rd and Hwy 33/ San Joaquin Co. <br />Borehole Dia <br />Filter Pack <br />8 " Tot, <br />Annular <br />Depth 22' Tot, Casing Depth 22' Casing Dia 2 " Screened Interval 22'-7' <br />22'-6' Seal 6'-4' Slot Size 0 -020 " Grout 4'-0' Water Depth +/-7' <br />_..c, -1-. a, 1A4LII ldltIS I T i E w E0c--- <br />:ID <br />-1--) <br />m — 74 s--' <br />+(i)) Columnar Section V) <br />U E' <br />V) >N <br />D (4 <br />Description <br />Remarks <br />OVM (ppm) <br />_ <br />_ <br />_ <br />— <br />_ 1526 9 <br />12 <br />18 <br />ML SILT—(2.5Y5/6), slightly plastic, large <br />roots, slightly crumbly, moist, only <br />enough sample for geology. <br />_ <br />_ <br />_ <br />.— --.... <br />_= - <br />- <br />_ 1532 3 <br />3 <br />: <br /> =:::: -- <br />— <br />:= _ = ._ <br />'— <br />ML SANDY SILT— fine grained, wet. <br />_ <br />_ <br />_ <br />_ <br />= <br />_ <br />=---- <br />.=,.. <br />_ 1536 <br />6 <br />6 <br />7 <br /> E_---::: . —.7. _ := ML SILT—(2.5Y5/6), plastic, organic <br />material. <br />_ <br />_ <br />_ <br />= <br />a <br />— 1541 <br />2 <br />3 <br />6 <br />- = <br />=... <br />S SILTY SAND—(2.5Y5/4), fine grained. <br />Some clean medium sand in upper 3" _ <br />_ <br />— <br />Notes <br />Submitted Sample <br /> SAND E CLAY Annular Seal F-7 Grout //Z <br />to Laboratory LE--] SILT <br />0 <br />5 <br />10 <br />15 <br />20 <br />25 <br />30