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tSubcontractor Geo Environmental Drilling Log of Bormg/Mcnitanng Well. B <br /> • **� cy <br /> Dulling l[cthod CME55 g' HSA start Date 12-28-93 start Tyne 805 lLours project Name Chapin Bros iYl 3 <br /> Project No N0014-001-01 <br /> Sampling method. 2" CMSS Fm=h Date L2-28-93 F'imsh 'Lime 940 Hours Project Location 1766 Monte Diablo <br /> First Water/Sigtic Water level (BGS) 22 1/20 9 lagged By J Clayton Page I of 1 <br /> a 4 Surface Elevation 5 90 Cas:ng Top Elevation 5 36 <br /> 6a AhandaameaL <br /> aw "m o yti �' LiTHGLOGIC DESCRIPTION Wel! �'°a °atm <br /> Nm L� oa ° o a 5�n (color soil type moisture, consistency other} <br /> 0 V BROKEN ASPHALTIC CONCRETE <br /> 13LUISH GRAY, SILTY CLAY MODERATE ODOR OF <br /> CL PETROLEUM HYDROCARBONS (TOP 1 0) <br /> MEDIUM BROWN SILTY CLAY NO ODOR <br /> �*-Cemmt <br /> 12 5 ML LIGHT 14EDIUM BROWN CLAYEY VERY FINE SANDY SILT <br /> 18 12 18/18 DAMP SOFT SLIGHT ODOR OF PETROLEUM HYDROCARBONS -_ <br /> IN GRAY STREAKED PARTINGS <br /> 7 <br /> 10 10 � LIGHT MEDIUU BROWN CLAYEY SILT TO SILTY CLAY, B`ate'yt` <br /> 31 21 18/15 DAMP, MEDIUM HARD, SLIGHT ODOR OF PETROLEUM <br /> HYDROCARBONS <br /> ' 6 <br /> g GRAYISH BROWN FINE MEDIUM GRAINED SAND DAMP <br /> 418 13 18/15 $P LOOSE MODERATE ODOR OF PETROLEUM HYDROCARBONS ,bra r <br /> 9 20 •�`~ ;`4 <br /> It LIGHT MEDIUM BROWN CLAYEY SILT DAMP MEDIUM STIFF ` <br /> 41 21 18/15 MODERATE ODOR OF PETROLEUM HYDROCARBONS <br /> .ML w� <br /> 7 25 <br /> 16 LIGHT MEDIUMBROWN CLAYEY SILT WITH VERY FINE SAND, ' <br /> 13 27 18/11 STIFF DAMP MODERATE ODOR OF PETROLEUM <br /> HYDROCARBONS <br /> iy <br /> "w <br /> f i <br /> ' 6 30 M- <br /> 9MEDIUM GRAY CLAYEY SILT, DAMP MEDIUM STIFF, SLIGHT <br /> 0 16 19/18 ODOR OF PETROLEUM HYDROCARBONS <br /> 1135 `f}µ <br /> 16 MEDIUM GRAY CLAYEY SILT, DAMP MEDIUM STIFF SLIGHT - <br /> 0 21 18/18 ODOR OF PETROLEUM HYDROCARBONSpar <br /> inteea<a <br /> BORING COMPLETED AT 36 5' BELOW GROUND SURFACE o9T <br /> GROUNDWATER ENCOUNTERED IN BORING AT 22 1 slatted <br /> ;40 BELOW GROUND SURFACE <br /> 45 <br /> 50 <br /> Reviewed by Date <br /> SEAC 0 R Revised by Date <br />