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%,. 3ORING LOG .� <br /> PROJECT NO: 490-STK PROJECT NAME: MV-Stockton BORING NO: B4 <br /> LOCATION: Approximate middle of property DATE: 4-20-90 <br /> GEOLOGIST: Cinda C. MacKinnon, R.G. {114316} Page 1 of 1 <br /> GROUND WATER DEPTH DRILLER:W. Haz Mat <br /> DRILLING METHODS: Hallow stem auger; Acker AD-2 rig <br /> 0 <br /> E <br /> a. � DESCRIPTIONWELL CONSTRUCTION <br /> Lu <br /> o ¢ s <br /> � ro <br /> C7 <br /> 0 silty sand and gravel; less than 1' Fill <br /> brown silt with clay and sand; <br /> minor caliche mottling at approx. 3' <br /> ML <br /> slightly moist at 4' <br /> 18- <br /> 7' sample: B4 <br /> 1 0- <br /> 5 30 <br /> 10- <br /> 20- <br /> REMARKS 20REMARKS <br /> MACKINNON ENVIRONMENTAL CONSULTING <br /> WALNUT CREEK, CA <br />