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<br />/' <br /> <br />STATE OF COLORADO <br />ReCeiVED <br />AUG 0 4 1999 <br /> <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br /> <br />e 13 t 3 Sherman Street. Room 81 a <br />Denver, Colorado 60203 <br />Phone: 13031 866.3581 <br />fAX, 13031 866-3589 <br /> <br />~Ar[P-1F.~(,..Jf-!("fS <br />SlATE E~INEER <br />C0c0 <br /> <br /> <br />hup://water .stOlte .co.us/defau It. htm <br /> <br />Bill Owens <br />Governor <br /> <br />Greg E. Walcher <br />Executive Director <br /> <br />Hal D. Simpson, P.L <br />Slale Engineer <br /> <br />July 30, 1999 <br /> <br />The Honorable Thomas G. Tancredo <br />United States House of Representatives <br />Washington, D.C. 20515 <br /> <br />Dear Representative Tancredo: <br /> <br />In regard to the announcement from your office, dated July 22, 1999, about the review of the "Cherry <br />Creek Flood Data", we wish to clari/)' that Dr. William Cotton at Colorado State University will not be <br />conducting an independent review of the weather service data as part of the Colorado Department of Natural <br />Resource's Extreme Storm Precipitation Study. <br /> <br />e <br /> <br />The Department, through the Colorado Division of Water Resources and the Colorado Water <br />Conservation Board, have entered into a contract with Colorado State University (CSU) for the "Development of <br />New Methodologies for Determining Extreme Precipitation". CSU has been engaged to evaluate extreme <br />precipitation at high elevation in Colorado. The extreme precipitation study was begun in 1995 in response to <br />uncertainty regarding the magnitude of precipitatiOI1 above 7500 feet in Colorado, based upon paleo-flood <br />hydrology. <br /> <br />Although Dr. Cotton offered to do a test oflhe Cherry Creek basin using the prototype version of the <br />extreme precipitation estimate technique they plan to develop, our study is not for the purpose of evaluating <br />Probable Maximum Precipitation in the Cherry Creek Basin. <br /> <br />If you have any questions, please contact Dr. Cotton or Mr. Pearson. <br /> <br />e <br /> <br />Same letter to: <br /> <br />U.S. Representative Joel Hefley <br />Copy of announcement for ccs. <br /> <br />Cc: Attachment <br /> <br />S~~ <br /> <br />Alan Pearson, Project Manager <br />Colorado Division of Water Resources <br />Dam Safety Branch <br /> <br />4Jilj~ ~ <br /> <br />Dr. William R. Cotton, Professor <br />Department of Atmospheric Science <br />Colorado State University <br />