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<br />_~o~ <br />0u~~ <br /> <br />lateral extent of the clay layer; and (4) thicknesses and elevations <br />of both the upper and lower aquifers. This office will arrange for <br />a suite of geophysical borehole logs to be run in the open hole upon <br />completion of drilling of each hole. Please contact Andy Viksne via <br />telephone, 234-3117, to schedule the geophysical borehole logging. <br />A complete geologic log of each hole is required. Four copies of <br />the log should be submitted to the Director of Design and Construction, <br />attention 230, as each hole is completed. The samples obtained during <br />drilling should be delivered to the E&R Center, Division of General <br />Research, Earth Sciences Branch, Code 1540. Each hole and/or sample <br />site must be located by coordinates and the elevation determined. <br /> <br />The design exploration program will be furnished after the detailed <br />stability study has been completed. <br /> <br /> <br />Copy to: Construction Engineer, Fort Morgan, Colorado <br /> <br />.~:~ <br /> <br />~ <br />