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Drilling Log <br /> ❑ GROUNDWATER Monitoring Well MW-13 <br /> TECHNOLOGY <br /> Project Texaco/Stockton Owner Texaco Environmental Services <br /> Location 440 Charter Way, Stockton, CA Prot No. 02070 2569 <br /> c C � r <br /> r- e Description <br /> n� mo Sn n u° ao U <br /> o— %o 0-8 u 1p-+ to (Color, Texture, Structure) <br /> U w m x v) Trace < 10X, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> 24 <br /> 7 ML Olive gray clayey SILT (continued) <br /> 26 0.5 MW-13 17 <br /> -25' 24 Olive gray clayey SILT to very fine SAND (moist) <br /> ML <br /> 28 <br /> 30 = 9 <br /> o MW-13 a Greenish gray CLAY (moist, no hydrocarbon odor) <br /> -30, 13 <br /> 32 <br /> 34 — .'. = CL <br /> 1a <br /> 0.5 MW-13 20 <br /> 36 — -35, 21 <br /> Static depth to water, 9-2-93, 1700 hrs. <br /> 36 <br /> 40 = Encountered water, 9-2-93, 1100 hrs. <br /> 0.5 MH-13 17 <br /> MW-1 25s Dark bluish gray silty CLAY (moist,no hydrocarbon odor) <br /> 42 = CL <br /> 44 — <br /> l7 Dark gray clayey fine SAND (very wet, degraded hydrocarbon <br /> 46 = L0 MW-13 29 odor) <br /> -45' 30 <br /> sc <br /> : I <br /> - 50- <br /> 7 (grades with sift, increasing degraded hydrocarbon odor) <br /> 7.0 MW-13 7 <br /> -50' a <br /> 52 End of boring. Installed monitoring well. <br /> -54 - <br /> 56 � <br /> II/16/1993 NINUC-mar93 Pace: 2 of 2 <br />