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1 <br /> Drilling Log <br /> ❑� GROUNDWATER <br /> � TECHNOLOGY Monitoring Well Mw-13 <br /> Project Chevron - Stockton Owner Chevron US A Products Cc <br /> Location 45 East Hardrno wav Prosect No 02070 3399 Date drilled 06/30/93 <br /> a Q° r�, ° Description <br /> G: w- wCL a�y>0 0.0U <br /> t7v 3; a a E =v !-J (Color, Texture, Structure) <br /> CD U <br /> L) NF°X a Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50% <br /> ' 24 <br /> Mw- Yellow brown SAND (continued) <br /> < 13�-25' <br /> 0 8 (Grades 40% fine sand, 20% medium sand, 10% coarse sand, 5% fine <br /> 26 It< e subangular gravel, 5% silt, 10% Gay) <br /> ,2 r 5w <br /> < < <br /> 1 28 < ` <br /> Yellow brown clayey SILT 40% silt, 30% fine sand, 30% clay, <br /> Mw- trace mica (slightly moist, low plasticity, no hydrocarbon <br /> ' 30 < 13-30 odor) <br /> 01 4 <br /> < < H ML <br /> 14 <br /> ' 32 < <br /> < < <br /> 34 < Mw- (Grades light gray, silty CLAY 70% clay, 20% silt, 10% fine <br /> 13-35 sand) <br /> 01 5 <br /> 3 6 t2 <br /> 13 <br /> ' 38 <br /> CL <br /> 13- <br /> 40 13-40 <br /> — 0 1 s (Grades yellow orange) <br /> = to <br /> - 42- <br /> -44- <br /> 2 44 _ Mw- <br /> f3-45 <br /> 01 7 (Grades red brown clayey SILT 70000' silt, 109% fine sand, 20% clay) <br /> 46 _ 21 <br /> 46 <br /> ' Mw- <br /> 13-50 ML <br /> rJO = l 0 ,0 Yellow brown sandy SILT 60' silt, 30% fine sand 10°% clay <br /> t2 trace medium sand trace mica (slightly moist, stiff lot+ <br /> 15 plasticity no hydrocarbon odor) <br /> 52 <br /> - 54 - Mw- <br /> 13-55 <br /> 0 ri Encountered water 06130/93 <br /> - 567-- (Grades gray-brown and black mottled 70% silt, 151/9' clay 15% fine <br /> sand) <br /> 08/30/1993 hthlo4-mar92 >'a7❑ �+ <br />