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Geological Tecknics Inc. <br /> Borehole Lo <br /> ' Project Name George's Service Borehole No. MW-5 Page 1 of 1 <br /> Project No. 425.2 Date 4/30/97 <br /> Contractor V&W Drilling <br /> ' Area & County Corner of Durham Ferry Rd and Hwy 33/ San Joaquin Co <br /> Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br /> Borehole Dia 8„ Tot. Depth22, Tot. Casing Depth 22' Casing Dia. 2" Screened Interval 22'-7' <br /> ' Filter Pack 22'-6' Annular Seal 6'-4' Slot Size 0.020" <br /> Grout 4'-0' Water Depth +/-7- <br /> i %D L <br /> t ��, C 0. E o* J £ s �, Remarks <br /> o� E ti z° o 41 o T Description CVM (ppm) <br /> 0 ti 0 3ca ern � h <br /> t5 <br /> 06516 CL CLAY—(5Y5/3), plastic, geology sample 0 <br /> ' 7 --- only. <br /> ' 10 <br /> 0654 i : SM SILTY SAND—(5Y5/2) blue green 23 <br /> staining, gasoline odor, moist, only <br /> ' enough sample for geology. <br /> 15 <br /> _ _ _ ML SANDY SILT—(2.5Y6/8), fg sand, slightly 0 <br /> plastic. <br /> 20 <br /> 0706 i SM SAND—(2.5Y6/4), fine to medium 2 <br /> ' grained, from 20-20.5'. <br /> SILTY SAND, fine grained, 20.5-21.5' <br /> ' 25 <br /> ' 30 Notes: SAND CLAY ® Annular Seal ® Grout <br /> SILT Sample Submitted to Laboratory <br />