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<br />LI' b9 <br /> <br />Woodward.CIyde Consultants <br /> <br />considered to be a zone of low seismic risk. The Corps of <br /> <br /> <br />Engineers document "Earthquake Design and Analysis for Corps of <br /> <br /> <br />Engineers Dams," Regulation No. 1110-2-1B06, April 30, 1977 <br /> <br /> <br />classifies Zone 1 as a seismic probability zone of "minor <br /> <br /> <br />damage" requiring only a very low seismic coefficient for dam <br /> <br /> <br />design. No faults have been found in the area. Historic <br /> <br /> <br />records indicate the nearest seismic events occurred some 70 <br /> <br /> <br />miles to the west, were of moderate intensity, and were <br /> <br /> <br />triggered by deep well high pressure injections. Based on our <br /> <br /> <br />seismologic knowledge of the area, and the above general <br /> <br /> <br />zoning, there does not appear to us to be any serious seismic <br /> <br /> <br />risk. <br /> <br />- 10 - <br /> <br />u <br />