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'-.-30RING LOG <br /> PROJECT NO. 490-STK PROJECT NAME: MV-Stockton BORING NO: B8 <br /> LOCATION: West end of EW tank pit DATE: 4-20-90 <br /> GEOLOGIST: Cinda C. MacKinnon, R.G. (#431E) Page 1 of 1 <br /> GROUND WATER DEPTH DRILLER:W. Haz Mat <br /> DRILLING METHODS: Hollow stem auger; Acker AD-2 rig <br /> a <br /> E <br /> Lu <br /> DESCRIPTION <br /> v WELL=4STRUCTION <br /> � U) <br /> fight brown silt and sand; loose; dry <br /> Fill <br /> --------------------------------- <br /> 5 <br /> dark brown clay with silt and concrete particles; <br /> 10- moist <br /> 10- <br /> 9 <br /> ------------------------------------- <br /> 18- sample B8 (9.5-10'); olive brown silty clay; <br /> 10 31 - CL <br /> slightly mottled; slightly moist; dense <br /> 47 <br /> 15 <br /> 20 <br /> REMARKS <br /> MACKINNON ENVIRONMENTAL CONSULTING <br /> WALNUT CREEK, CA <br />