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--i -� Drilling Log <br /> GROUNDWATER Monitoring Well MW-4 <br /> —�J TECHNOLOGY <br /> Proles=t Chevron - StoCkron Owner Chevron US.A. Products Co. <br /> Location 3'45=ast Fremont Srree' Project No. 02070 386:.' pate Grilled 05103/93 <br /> ,; .9 +ti Description <br /> ' — d DE apo <br /> cu— a a s E a d Cl�� ur (Color, Texture, Structure) <br /> U .. N�x ? Trace < 10%, Little 10% to 20%. Some 20% to 35%. AnC 35% to 50% <br /> SM <br /> Brown silty SAND (continued) <br /> Olive gray, poorly graded SAND with SILT (90% fine to medium sand, <br /> 10% silt, slightly moist) <br /> Mho-60 <br /> 32 <br /> BO 0 40 <br /> 50 <br /> 62 = sM <br /> B4 = Mw4-E5 <br /> 22 <br /> ' — 040 <br /> so <br /> ss . . <br /> 68 <br /> _ Light olive gray SAND with GRAVEL (80ro Sine to medium sand, <br /> 10% coarse sand, 10% fine gravel, moist) <br /> Mw4-70 <br /> ' <br /> 70 — _ 0 25 <br /> 42 <br /> ISw <br /> 72 <br /> i• <br /> :I lMw4-75 �;''•• : Is Encountered water 5/0.3/93, 12:20pm <br /> 45 <br /> 0 <br /> 50 <br /> (Graces(Graces brown. 606% Sine to medium sand, 10°6 coarse sand, 15% tine <br /> 76 gravel, 50' silt, water saturated) <br /> gown silty SAND (90% line to medium sand, 300% silt, wet) <br /> ' Q i SM <br /> 78 <br /> kMk4-80 (Graces olive gray) <br /> e0 <br /> 80 0 50 Reddish brown, Dourly graced SAND with SILT (85ro fine to medium <br /> r 5or3" ;• y c� sand, 15% silt, wet) <br /> -3rown silty CLAY (55% clay, 35% silt, wet, slightly plastic) <br /> ' 82 <br /> CL <br /> 84 <br /> Brown sandy SI!T (70% silt, 20% fine to mpdium sand. 10% clay, <br /> —� waier saturated) <br /> $6 <br /> rt Sna of boring• �ns;alled groundwater monitoring well. <br /> $$ <br /> 05r2S/ra°3 i'Snros-mar52 Pace: °1 of <br />