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1 Subcontractor- Geo Environmental Drilling Log of Boring/Monitoring Well B`ic <br /> I}n1Lin Method CME55 8' HSA Start Date 12-28-93 Stark Time E2ifi Hours <br /> MW4 <br /> � Project Name Chapin Bros <br /> Project No N0014-001-01 <br /> Sampling Method 2' CMSS Finish nate 12-28-93 Finish Time 140 Hours Project Location 1766 Monte Diablo <br /> First W&ter/Static Pater Level (HOS) 23 3/22 6 logged By ] Clayton Page 1 of I <br /> cSurface Elevation 715 Casing Tog Elevation 672 <br /> C <br /> u _ <br /> u o 9orIM Abandonment/ <br /> o 0.ti t - �A LTTHGLOGIC DESCRIPTION Wait ConserucUoa Retails <br /> o� y � � 0 00> <br /> �tiy <br /> yo Nam. s gas o e �� (color soil type moisture consistency oilier) <br /> 0 2" ASPHALTIC CONCRETE <br /> FILL BROKEN CONCRETE (FILL) _ <br /> 76 MEDIUM BROWN SILTY CLAY TO CLAYEY SILT WITH TRACE �= Haat <br /> 15 PEBBLES AND VERY FINE SAND RUSTY PARTINGS AND ==_Gwent <br /> �I O 20 18/13 C1/ML BLACK CLASTS DAMP STIFF NO ODOR _ <br /> ' 10 I O MEDIUM BROWN CLAYEY SILT * <br /> CONTAMINATION ® 11 3' <br /> 3 11 2$/12 -- cep <br /> LIGHT MEDIUM GRAY VERY FINE SANDY SILT DAMP, SOFT ML MODERATE ODOR OF PETROLEUM HYDROCARBONS <br /> 7 <br /> 9 15 I I I I I I LIGHT MEDIUM GRAY FINE SAND WITH TRACE TO SOME <br /> 27 15 18/18 I I I SILT DAMP, LOOSE TO SLIGHTLY DENSE MODERATE ODOR <br /> 111111 OF PETROLEUM HYDROCARBONS <br /> 5 <br /> 6 20 I j I I j MEDIUM GRAY SILTY VERY FINE SAND MOIST, LOOSE, <br /> 34 7 18/16 Illlll MODERATE ODOR OF PETROLEUM HYDROCARBONS <br /> Illtll {e <br /> I SMI <br /> 2 25 III 1 <br /> 2 1 1 1 1 1 1 MEDIUM GRAY SILTY VERY FINE SAND, SATURATEDA, - <br /> 22 3 18/18 111111 (FLOWING) EXTRA LOOSE, MODERATE ODOR OF PETROLEUM <br /> illlll HYDROCARBONS + f, <br /> Illlll w. <br /> 111111 j <br /> 9I I I <br /> 14 30 I I I I I I MEDIUM GRAY SILTY VERY FINE SAND WITH TRACE CLAY <br /> 0 17 18/18 I I I I I I MOIST MEDIUM DENSE SLIGHT ODOR OF PETROLEUM <br /> II� 1� HYDROCARBONS `a <br /> 8 35 ML MEDIUM GRAY CLAYEY SILT WITH TRACE VERY FINE SAND <br /> 13 AND FINE GRAINED SAND CLASTS, MEDIUM STIFF, DAMP `" - <br /> 0 1a 18/16 SLIGHT ODOR OF PETROLEUM HYDROCAR13ONS <br /> Screened <br /> Interva <br /> BORING COMPLETED AT 36 5 BELOW GROUND SURFACE 0 022 1 <br /> GROUNDWATER ENCOUNTERED IN BORING AT 23 3 sued <br /> 40 BELOW GROUND SURFACE Casing <br /> r. 45 <br /> ' 50— <br /> Reviewed by Date <br /> s E A C O R <br /> ' Revised by Date <br />