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rSubcontractor Geo Environmental Drilling Log of Baring/Monitoring Well B2 <br /> • Drilling t HSA Start Date 12-27-93 Start Time 905 Hours M" <br /> g !4e hod CME55 8 Project Name Chapin Bros <br /> Project No N0014-001-01 <br /> Sampling Method 2 CMSS F'tmsh Date 12-27-93 Piwah Time 1045 Hours Project Location.1766 Monte Diablo <br /> First Water/SLatic Water Level (BGS) 214/200 Logged By d Clayton Page 1 of 1 <br /> 7 c Surface Elevation B 26Casing Top Elevation 565 <br /> Q. S" \ ar m o 9arv,g Abandanmeat/ <br /> "� w� LITHOLOGIC DESCRIPTION Tauca>ti:trU�tlon °a1-1,- <br /> y °d r `�'i d m y "❑ (color sad type moisture consistency other) <br /> U3 may yam v,° a.. 7vi <br /> 0 - 1 0" ASPHALTIC CONCRETE <br /> CL BROWN CLAY AND ROOTS <br /> Net <br /> Cement <br /> , lil 1 , <br /> 16 S MEDIUM BROWN SILTY VERY FINE SAND TO SANDY SILT <br /> O 21 I8/12 ; ;;; ;;; DAMP MEDIUM DENSE NO ODOR =- <br /> 1 1 1 i -— - Bentonite <br /> I I I I I I I Clupt <br /> 7 111111 <br /> 9 10 1 I 1 I 1 I LIGHT MEDIUM BROWN VERY FINE SAND WITH SAME SILT <br /> 0 11 18/12 111111 POORLY GRADED DAMP LOOSE NO ODOR ' <br /> llllll L.t <br /> 111111 'A .. 1 <br /> I SM t <br /> 15 15 1 11111 LIGHT MEDIUM BROWN VERY FINE SAND WITH SILT POORLY rr <br /> 0 22 18/13 I IF1 GRADED DAMP MEDIUM DENSE NO ODOR <br /> 111111 ~ <br /> 111111 - <br /> I 1 I <br /> 8 20 MEDIUM BROWN MEDIUM GRAINED SAND POORLY GRADED <br /> 0 11 18^5 MOIST TO WET LOOSE NO ODOR - <br /> - P= - <br /> _ Sand <br /> 'r <br /> 2 <br /> 3 25 MEDIUM GRAY CLAY WITH SOME SILT DAMP VERY SOFT <br /> 0 4 18/18 NO ODOR (SLIGHT ORGANIC ODOR) ;a. <br /> tt <br /> 1 <br /> 5 CL +'30 <br /> 9 LIGHT MEDIUM GRAY VERY FINE SANDY SILT CLAY DAMP <br /> 0 17 18/18 SOFT TO MEDIUM STIFF NO ODOR <br /> 17 <br /> 35- MEDIUM GRAY SILTY CLAY DA14P MEDIUI4 STIFF NO ODOR <br /> 0 19 18/12 <br /> ' interval <br /> BORING COMPLETED AT 36 5' BELOW GROUND SURFACE 0Ozer <br /> GROUNDWATER ENCOUNTERED IN BORING AT 21 4' seZud <br /> 40 BELOW GROUND SURFACE casing <br /> 45 <br /> 50 <br /> S E AC O R Reviewed by Date <br /> Revised by Date <br />