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Subcontractor Geo Environmental bailing D <br /> Log of Boring/Monitoring Well B 3 i, <br /> M 3 i <br /> DrillingMethod CME55 B' HSA Start Date 12-28-93 Siert Time 805 Hours project Name Chapin Bros <br /> Sampling Method 2 CMSS Project No N0014-001-01 <br /> Finish Date 12-28-93 Finish Time 940 Hours Project Location 1766 Monte Diablo <br /> First Water/Statte Water Level (BGS) 22 1/20 9 logged By d Clayton <br /> Page 1 of 1 <br /> a. 3 Surface Elevation 5 90 Casing Top Elevation 5 36 <br /> 04.. <br /> ? U m u <br /> dC > u W�yi Boring Abandonment/ <br /> 10 <br /> (color, soil type moisture consistency other) <br /> LITHOLOGIC DESCRIPTION Well �p=�uct►pa Details <br /> aa5o Q o ° <br /> 0 1" BROKEN ASPHALTIC CONCRETE <br /> BLUISH GRAY, SILTY CLAY, MODERATE ODOR OF <br /> CL PETROLEUM HYDROCARBONS (TOP 1 0') <br /> MEDIUM BROWN SILTY CLAY NO ODOR <br /> sv Neat <br /> _ cement12 ML LIGHT MEDIUM BROWN CLAYEY VERY FINE SANDY SILT, <br /> 18 12 16/18 DAMP, SOFT, SLIGHT ODOR OF PETROLEUM HYDROCARBONS <br /> IN GRAY STREAKED PARTINGS <br /> 7 10 <br /> 10 M1. CL LIGHT MEDIUM BROWN CLAYEY SILT TO SILTY CLAY, Bent <br /> 31 21 18/15 / DAMP, MEDIUM HARD, SLIGHT ODOR OF PETROLEUM Chips <br /> HYDROCARBONS <br /> 6 <br /> 6 GRAYISH BROWN FINE MEDIUM GRAINED SAND DAMP, _ <br /> 419 13 18/15 —=Sp— LOOSE MODERATE ODOR OF PETROLEUM HYDROCARBONS <br /> z <br /> 6 20 <br /> 11 LIGHT MEDIUM BROWN CLAYEY SILT DAMP MEDIUM STIFF <br /> 41 21 18/15 MODERATE ODOR OF PETROLEUM HYDROCARBONS <br /> ML :> <br /> Sand <br /> 7 25 <br /> i6 LIGHT MEDIUM BROWN CLAYEY SILT WITH VERY FINE SAND �r <br /> 13 27 18/11 STIFF DAMP, MODERATE ODOR OF PETROLEUM <br /> HYDROCARBONS = <br /> 6 30 $` <br /> 9 MEDIUM GRAY CLAYEY SILT DAMP MEDIUM STIFF SLIGHT <br /> 0 16 16/18 ODOR OF PETROLEUM HYDROCARBONS <br /> 0 <br /> 11 35 <br /> 16 MEDIUM GRAY CLAYEY SILT DAMP, MEDIUM STIFF SLIGHT , y <br /> 0 21 18/18 ODOR OF PETROLEUM HYDROCARBONS <br /> Screened <br /> BORING COMPLETED AT 36 5 BELOW GROUND SURFACE interval <br /> GROUNDWATER ENCOUNTERED IN BORING AT 22 1' o o <br /> 40 BELOW GROUND SURFACE Suittete <br /> d <br /> Casing <br /> 45 <br /> 50 <br /> S E A C O R Renewed by gate <br /> Revised by Date <br />