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<br />Woodward-Clyde Consultants <br /> <br />- .- ,-, ( <br />.'. 'J <br />t:.0 " ,.7 <br /> <br />considered to be a zone of low seismic risk. The Corps of <br /> <br />Engineers document "Earthquake Design and Analysis for Corps of <br /> <br />Engineers Dams," Regulation No. 1110-2-1806, April 30, 1911 <br /> <br />classifies Zone 1 as a seismic probability zone of "minor <br /> <br /> <br />damage" requiring only a very low seism/~6effiCient for dam <br /> <br /> <br />design. No faults have been found in~he rea. Historic <br /> <br /> <br />records indicate the nearest seismi~v~s~~ed some 70 <br /> <br /> <br />miles to the west, were of mOdera~;> intensity, and were <br /> <br /> <br />triggered by deep well high pres;re injections. 'V Based on our <br /> <br /> <br />seismologic knowledge of the~~and the above general <br /> <br /> <br />zoning, there does not appear to us to be any serious seismic <br /> <br />risk. <br /> <br /> <br />---------- <br /> <br />- - -------- - -- - <br /> <br />- 10 - <br /> <br />IIDt. <br />.. <br />