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<br />A profile would be obtained of the entire baseline. <br />Distances will be obtained by electronic distance measuring <br />devises and elevations by trigonometrical methods, to mini- <br />mize brushing requirements. <br /> <br />4) Location of Seismic Traverses <br /> <br />Generally, one seismic traverse will .be located along <br />the baseline at each potential dam site. Other traverses, <br />both parallel and perpendicular to this baseline, will be <br />located from the reference points already established. Great <br />accuracy is not necessary in locating these traverses, and they <br />will be sited by chaining from the baseline at each reference <br />point by approximate angular means such as a compass or optical <br />square. <br /> <br />5) Location Surveys for Core Drill Holes <br /> <br />The drill holes at the potential dam sites will be <br />located by ground survey methods from the baseline. Dis- <br />tances will be established by electronic distance measuring <br />devices and verticle angles will be measured by theodolite <br />so that elevations can be obtained by trigonometrical methods. <br />During this phase it is expected that all of the drill holes <br />at the potential dam sites will be able to be seen from a point <br />on the baseline without the need for additional brushing or <br />clearing. <br /> <br />. <br /> <br />-7- <br />