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Drilling Log <br /> GROUNDWATER Monitoring Well MW--15 <br /> Boto' TECHNOLOGY <br /> . Project Texaco/Stockton Owner Texaco Environmental Services <br /> Location 440 Charter WaY Stockton CA prol_ No. 02070 2569 <br /> �•• E 4, Q m n a Description <br /> n: 0 as a 7 o Q.o U <br /> o-- E a Q e a a m� v, (Color, Texture, Structure) <br /> o ° ¢ ❑ Trace < 10%, Little 10% to 20X. Some 20% to 35%. And 35% to 50X <br /> v v1 m x a <br /> 24 Greenish gray sandy SILT (continued) <br /> t5 <br /> 0 MH-15 is ML <br /> 26 - <br /> -25 24 <br /> 2B Greenish gray silty CLAY (mo►st. no hydrocarbon odor) <br /> 30 — <br /> 0 MH-15 19 <br /> _30 23 (grades green with some coarse sand grains and root casts) <br /> 32 — <br /> 34 CL <br /> g (grades dark greenish gray) <br /> 10 Mw-15 12 <br /> 36 = -35 14 <br /> 38 <br /> Static depth to water, 9-1-93, 1700 hrs <br /> 40 a <br /> 2 0 MN-15 X <br /> -40 18 <br /> Greenish gray mottled with pale gray clayey SILT and fine SAND <br /> 42 — (moist, slight hydrocabon odor) <br /> ML <br /> Encountered water, 9-1-93. 1515 hrs <br /> -44- <br /> - <br /> 4 — <br /> 5 Dark greenish gray silty CLAY (very moist, degraded hydrocarbon <br /> 46- = 5 5 Mw-15 11 odor) <br /> -45 14 CL <br /> 48 Dark greenish gray clayey silty fine SAND (wet, degraded <br /> _ hydrocarbon odor) <br /> - 5 0- SC <br /> 30 Mu-15 4 <br /> i -50 5 <br /> - 52 - - <br /> 2 End of boring Installed monitoring well <br /> . <br /> 54 - <br /> - 56- <br /> 11116/1903 <br /> 11/16/1993 GtNo4-mar93 Page 2 of 2 <br />