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George's Service Project Name Page 2 of 3 Borehole No, MW-202 <br />425.2 Date <br />6/29/98 <br />7/1/98 Project No Contractor V&W Drilling <br />Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br />(!eological Technics Inc. <br />/ / / / / / / / / / / / / / / / ' / / / Bor h 1 ,,,,,,,,,,,,,,,,,,,,, e o e Log / / / / / / / / / / / / / / / / / / <br />Area & County Corner of Durham Ferry Rd. and Hwy 33/ San Joaquin Co. <br />15" 0-50' <br />Borehole Thar 50-84Tht, Depth 50' Tot, Casing Depth 84' Casing Dia 2" Screened Interval 81.5 -79' <br />Filter Pack 84 -77' Annular. Seal 77 -75'Slot Size 0.020" Grout 75 -0' Water Depth +/-7' <br />...., <br />> <br />._. <br />Ti <br />ii <br />c5 6 <br />E <br />1-- <br />o c <br />cisl <br />U <br />:n <br />-74 <br />— u Quo, Columnar Section (4 <br />u Description <br />Remarks <br />OVM (ppm) <br />Free Drill See <br />MW-102 for Geology <br />Log for MW-2 and <br />-... -._, <br />_ <br />— <br />_ <br />_ _ <br />= <br />_ <br />_ <br />_ <br />_ <br />_ 0755 <br />5 <br />12 <br />21 <br />= =EE CL SANDY CLAY-(2.5Y6/8), very fine <br />grained, plastic. <br />0 <br />Conductor <br />Casing Set to <br />50' bgs on <br />6/29/98 <br />_ <br />0723 <br />9 <br />27 <br />isE = CLAYEY GRAVELY SAND-loose, wood <br />from conductor casing plug, incomplete <br />core. <br />0 <br />7/1/98 <br /> CL <br />Grout E- CLAY V/A Annular Seal r--.1 Notes: SAND <br />- SILT °o° GRAVEL Sample Submitted to Laboratory <br />30 <br />35 <br />40 <br />45 <br />50 <br />55 <br />60