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Oe® logical echnics Inco <br /> IProject Nave__... George's Service Borehole No __ MW-107 Page 2 of 2 <br /> Project No 425.2 Date 7/1 Z98 Contractor V&W Drilling <br /> IArea & County Cornar_of Durham Forrg -Rd–and Hwy 3.3/ San .Joaquin Co. <br /> IField Geo/Eng M Nieml Drilling Method Hollow Stem Auger <br /> Borehole Dia- S" Tot Depth 52' Tot Casing Depth 52' Casing Dia 2" Screened Interval 49.5-47 <br /> Filter Pack 52-45' Annular Seat 45-431 Slot Size 0 020 Grout 43-0' Water Depth <br /> LI Ln d c co Remarks <br /> �a0, a a C = 4> � *' >r Description OVM (PPM) <br /> a d o "" i a � a N u <br /> am Q_ ti in Z 111 <br /> V 3 A U � {n <br /> 1450 SW GRAVELY SAND–very fine to very coarse <br /> 58/2' grained. loose 0 <br /> 3t 3 <br /> 1457 4 °o°a°o°o GP SANDY GRAVEL–medium to very coarse <br /> lieg °°a°°°° grained, loose, slightly heaving 0 <br /> 40 <br /> 29 = NAL SILT–(2 SY5/6), firm 0 <br /> 45 s °°°n°o° GC CLAYEY SANDY GRAVEL–loose, angular Rog 1554 t4 o°o°a°o 9 Q <br /> a ° o o grovels of chem and sandstone <br /> 50 <br /> 1609 — CL CLAYEY SAND–very fine to medium Q <br /> grained, some gravel, 52-52'3" <br /> SANDY CLAY–very fine grained, firm, <br /> 52'3"-53.5' <br /> Notes © SAND 0 CLAY ® Annular Seal ® Grout <br /> SILT °o° GRAVEL Sample Submitted to Laboratory <br />