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Drilling Log <br /> 1:11:119;-� TECHNOLOGY GROUNDWATER Monitoring Well MW-4 <br /> 9 <br /> Project Chevron - Stockton Owner Chevron U.S.A. Products Co. <br /> LoG7tion 32'45 Sasr �femcnf Srret Proiect No. 02. 70 3865 pate drilled 05/03/0, <br /> U Description <br /> d O <br /> � a n E i ion U (Color, Texture, Structure) <br /> o W �� n ,n Trace < 10%. Little 10% to 20%. Some 20% to 35%. AMd 35% to 50% <br /> U V1 m x a <br /> 56 $M Brown silty SAND (continued) <br /> Olive gray, poorly graded SAND with SILT (90% fine to medium sand, <br /> 5$ 10% sitt, slightly moist) <br /> MW4-•60 <br /> fi 0 32 <br /> p as <br /> = <br /> 50 <br /> 62 s <br /> 64 - MW4-E5 <br /> 22 <br /> 66 — so ' <br /> i•, Light olive gray SAND with GRAVEL (800' fine to medium sand, <br /> 68 10% coarse sand, 10% fine gravel, moist) <br /> MW4-70 1 <br /> - 70 = 0 25 <br /> <2 ,. <br /> — i• ,Sw <br /> - 72 <br /> 74 _ IMh4-75 i <br /> _ as )• EncountereV water 5/03/93, 12.20pm <br /> = A 10 <br /> 7fi = 5o I (Grades brown, 60% fine to medium sand, 10A coarse sand. 15% fine <br /> _ gravel. 5% silt, water saturated) <br /> �rown sitty SAND (90% fine to medium sand, 30% silt, wet) <br /> 78 SM <br /> imw4-B0 (Grades olive gray) <br /> 80 = _i p <o so . Reddish brown, poorly graded SAND with SILT (850' fine to medium <br /> 50/3` . t � Sand, 150% silt. wet) <br /> I V SH -3rown silty CLAY (65% clay, .350' silt, wet, slightly plastic) <br /> 82 <br /> } I CL } <br /> 84 LE <br /> NA I �` Brown sandy Si!T (7C% silt. 20"' fine to medium sand, 10% clay. <br /> water saturated) <br /> 86 i End of boring• cnstalleC groundwater monitoring well. <br /> - 68 - <br />