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i <br /> Subcontractor Geo Environmental Drilling7 <br /> Log of Boring/Monitoring Well B <br /> Drilling Method SIMCO 2400SK-1 Start Date 3-29-94 Start Time 1115 Hours <br /> 7 HSA Project Name Chapin Bros <br /> Project No N0014-001-01 <br /> Sampling Method 2 CMSS Finish Date 3-29-94 Finish Time 1220 Hours Project Location 1766 Monte Diablo <br /> i <br /> First Water/Static Water Level (BGS) Logged By d Clayton Page 1 of I <br /> E a c v Surface Elevation Casing Top Elevation <br /> d4 A u O Baring Abandonment/ <br /> 06 X: LITHOLOGIC DESCRIPTION Yell Construction Details <br /> o <br /> P. a a a, Q_ rn (eO1type moisture consistency other <br /> 0 BARE SOIL <br /> LIGHT MEDIUM BROWN CLAYEY SILT, DRY, NO ODOR Backfilled <br /> with <br /> Neat <br /> Cement <br /> 12 5 <br /> 16 LIGHT BROWN SILT WITH CLAY AND TRACE VERY FINE <br /> 226 20 18/15 SAND HARD NO ODOR <br /> 12 10 <br /> 25 LIGHT BROWN SILT WITH VERY FINE SAND DRY HARD <br /> 240 33 18/16 NO ODOR <br /> ML <br /> 6 <br /> 15 <br /> 11 LIGHT GRAY SILT WITH CLAY AND TRACE VERY FINE SAND <br /> 173 17 18/18 DAMP HARD MODERATE ODOR <br /> 6 20 <br /> 12 LIGHT GRAY SILT WITH CLAY AND TRACE VERY FINE SAND <br /> 560 18 18/12 MOIST TO WET HARD SLIGHT TO MODERATE ODOR <br /> 25 <br /> BORING COMPLETED AT 265 BELOW GROUND SURFACE <br /> GROUNDWATER NOT ENCOUNTERED IN BORING <br /> 30 <br /> 35 <br /> 40- <br /> 45- <br /> - 50 50 <br /> Reviewed by Date <br /> S E A C O R <br /> Revised by Date <br />