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1 i <br /> ' <br /> ��77 Subcontractor Gen Environmental Drilling Log of Boring/1konttartag Well B8/ <br /> s"M2400sx-1 T1YP3 <br /> Drilling Method 7^ HS HSA Start Date 3-29--A4 Start bine 157 Hours Project Name Chapin Bros <br /> ' Project No N0014-001-01 <br /> Sampling Method 2 CMSS Finish Date 3-29-94 Finish Time 248 Hours Project Location 1766 Monte Diablo <br /> First Water/Statio Water Level (BGS) 21 1 !t. Logged By d Clayton Page 1 of t <br /> c Surface Elevation. Casing Top Elevation <br /> u a r°��m �`m � a m a Bar,ne A6mdocmea!/ <br /> LITHOLOGIC DESCRIPTION <br /> m [ G oti (color sod type moisture consistency, other) <br /> cc' 0 <br /> 2' ASPHALTIC CONCRETE + 4" BASE ROCK <br /> B.cldwaa <br /> with <br /> Hea! <br /> Cement <br /> 12 5 LIGHT BROWN CLAYEY SILT, DRY TO DAMP SLIGHTLY <br /> 23 13 18/18 STIFF" NO ODOR <br /> 11 22 10 LIGHT BROWN CLAYEY SILT WITH TRACE VERY FINE SAND, <br /> ' 330 18/18ML DRY, HARD NO ODOR (FEW BLACK INCLUSIONS) <br /> B <br /> 12 15— LIGHT GRAYISH BROWN CLAYEY SILT WITH TRACE VERY <br /> ' 14 12 18/17 FINE SAND AND FEW RUST COLORED MOTTLES DAMP <br /> SLIGHTLY STIFF NO ODOR <br /> 9 20 <br /> 15 MEDIUM BROWN FINE SANDY SILT WLTH SOME CLAY WET <br /> 0 26 18/18 STIFF TO VERY STIFF NO ODOR <br /> LAI I 1J <br /> BORING COMPLETED AT 23 0' BELOW GROUND SURFACE <br /> 25 GROUNDWATER ENCOUNTERED IN HOSING AT 21 1 BELOW <br /> GROUND SURFACE <br /> 1 <br /> 30 <br /> 1 <br /> ' 35 <br /> ' 40 <br /> ' 45 <br /> 50 <br /> Renewed by Date <br /> SE A r v a R Revised by Date <br />