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Logged By: Date Drilled: Drilling Contractor: Method/Equipment: Boring Number: <br /> HOLLOW STEM AUGER <br /> Todd Brown 5/21/97 Mitchell Drilling CME 75 HT SB-3 <br /> See "Legend to Logs or Boring Ground Groundwater Elevation(ft.): Total Drive Drop <br /> sampling method, Diam.(in.): Elev.(ft.): 57 Depth(ft.): wt.(Ibs.): Dist.(in.): <br /> classifications and laboratory 1 10.5 20.5 140 30 <br /> testing methods 8 <br /> Well <br /> a Description F- a <br /> Construction o <br /> Asphalt and Gravel fill <br /> 25 -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0 SB3-1.5 <br /> 24 0 8015/ SB3-2 <br /> 22 (CL) CLAY, very stiff, moist, dusky yellowish brown, no 8020 <br /> petroleum odor 418.1/ <br /> 413.2 <br /> 37 5 60/6" •.•becomes dark yellowish brown, hard, moist, no p- SSB3-55 <br /> petroleum odor <br /> 17 ...becomes moderate yellowish brown, very stiff, moist to 0 _ SB3-9.5 <br /> 10 22 met 0 8015/ SB3-10 <br /> Abondoned <br /> with Neat 29 ...becomes saturated 8020 <br /> Cement <br /> =- Grout <br /> 21 ...same as above, hard 0 - SB3-14.5 <br /> 15 38 <br /> 32 <br /> 23 ...same as above, slightly Sandy, hard 0 - SB3-19.5 <br /> 20 29 <br /> 32 <br /> Total depth = 20.5 feet below ground surface <br /> Hnu readings are in ppm <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling. Predominant material types shown on the log may contain different materiais and the change from <br /> one predominant material type to another could be different than indicated. Descriptions on this log apply only at the specific <br /> location at the time of drilling and may not be representative of subsurface conditions at other locations or times. <br /> Project No. 40007-130-01 Date MAY 97 Log of Boring <br /> Figure <br /> A-7 (sheet 1 of 1) <br />