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5I <br /> DIVIDEND DEVELOP24_ENT. COMPANY <br /> TRACY SITE <br /> NORTH PARCEL <br /> SOIL LAYER DESCRIPTION <br /> B--4 <br /> 5/22/91 <br /> 0 . 0 ' - 3 . 0 ' - Medium gray, grading to brownish gray, <br /> clayey silt, abundant dark carbonaceous <br /> matter, loose in upper <br /> 3 . 0 ' - 4 . 0 ' - Brownish' gray clayey silt/silty clay, <br /> moist - ML/CL. <br /> 4 . 0 ' -- 6 . 5 ' - Brownish gray, silty clay/clay, moist, <br /> stiff, caleche streaks at 5 ' . <br /> 6 . 5 ' - 9 . 0 ' - Greenish bluish gray silty clay/clay, <br /> siltier at base <br /> moist, stiff colors <br /> appear transitional downward to lighter <br /> shades . <br /> 9 . 0 ' - 11. 5 '/12 . 0 ' Contaminated, as above, very wet- , silty <br /> clay/clay- CL, but darker hues again. <br /> 11. 5 ' to 12 . 0 ' - 14 . 0 ' - Brownish gray, distinctly brown hues but <br /> siltier, distinctly silty clay - ML/CL <br /> all very moist. <br /> 14 . 0 ' - 19 . 01 - All non-contaminated, distinct brownish, <br /> wet silty clay, but mostly CL. <br /> 19 . 0 ' - Total Depth <br /> Well Construction Notes: <br /> 1. Groundwater standing at 5 ' 3" , 18 hours later <br /> 2 . Original groundwater level is about 91 . <br /> i <br />