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Mr. Bryce Romig <br />May 29, 2001 <br />Page 3 <br />• The July 22 and October 13, 1998 elevation surveys of Monitoring <br />Monument 13 indicated an increase in elevation of less than 0.1 feet for this <br />monument. However, later surveys found the monument to be at its original <br />elevation. Therefore, this monument is not consistently moving in any one <br />direction (i.e., up or down). <br />Based on the survey data and the points discussed above, it is our opinion that if any movement <br />is occurring in the movement monuments, it is nominal at the most. <br />Sincerely, <br />Michael J. Martin, P.E. <br />Senior Engineer <br />Enclosures <br />cc: Steve Dole, Exponent <br />860194].00201010501 MM01 {~ ~m <br />