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<br />, <br />:ENT BY: USACE j <br />. . . ~. <br /> <br />402 221 7164j <br /> <br />AUG-4-03 17:59j <br /> <br />PAGE 3/4 <br /> <br />,. <br /> <br />. <br /> <br />STATE OF COLORADO <br /> <br />Colorado Water Conservation Board <br /> <br />Department of N amra! Resources <br />13 U Shmnan Street, Room 721 <br />Deliver, Colorado 80203 <br />Phone: (303) 866-3441 <br />FAX: (303) 8664474 <br />www.cWc:b.state.co.us <br /> <br />..,. I . <br /> <br />. ~ ~:?,>~~~': \, ' <br />- \1 ~ 1; . <br />, ~~~~:.~~~ / <br /> <br />July 1 5, 2003 <br /> <br />Bill Owen5 <br />Goyernor <br /> <br />Mr. William D. Miller, Project Manager <br />Omaha District, Corps of Engineers <br />CE NWO-PM - C <br />106 South 15th <br />Omaha, Nebraska 68102-1680 <br /> <br />Greg E. Walcher <br />Executive Director <br /> <br />Rod K uharich <br />t.:WCI3 Duectot <br /> <br />Din McAuliffe <br />Depul}' Director <br /> <br />Dear Mr. Miller: <br /> <br />I appreciated the Corps of Engineers (Corps) involvement in the Cherry Creek Probable <br />~aximum Precipitation (PMP) Technical Review and participation in the June 19,2003 review <br />~eeting in Denver, Colorado. This Board (CWCS) in cooperation with the local government <br />sponsors (Arapahoe and Douglas Counties, City of Aurora and City of Greenwood Village, <br />Colorado) have been tasked for performing a technical review of the Corps and the National <br />Weather Service (NWS) Site-Specific 1995 PM? Study. The CWCB is accomplishing this <br />project by contract with Applied Weather Associates (AW A) for the performance of certain <br />meteorological, climatological, and hydrological tasks using World Meteorological Organization <br />(WMO) PMP procedures. The PMP procedures require professional judgment and knowledge <br />of extreme storm data in the performance of a PMP analysis. Any site-specific investigation <br />requires the regional transposition of extreme storm events. <br /> <br />In addition to the Board's contract with AWA, the Board formed a technical review panel with a <br />make-up of recognized PMP experts to perform technical review for the project. The cwes <br />feels that the technical review panel comments were addressed and recommendations <br />incorporated to a satisfactory level. The basin project impacts'and PMP concerns were <br />addressed through regular meetings of the Cherry Creek PMP Advisory Committee whose <br />membership includes representatives of the cities and counties. professional groups with an <br />interest in the project, agency and organizational officials and a number of citizens. <br /> <br />At the June 19th meeting, the AWA and the NWS presented their respective PMP study findings <br />and provided study comparis,?ns to each other's study results regarding the PMP for the Cherry <br />Creek Basin. These comparisons are presented in the document entitled "Site-Specific <br />~robable Max!mum Precipitation (PMP) Study for the Cherry Creek Drainage Basin - Second <br />...-inal Report Review Meeting June 19, 2003 Denver. Co" which is posted on the cwes web <br />site@ www.cwcb.state.co.us. AWA will incorporate the information and comments that were <br />presented at the June 19th meeting into their draft report entitled "Probable Maximum <br />Precipitation (PMP) Site-Specific Study for Cherry Creek Reservoir dated April 2003". <br /> <br />J.'ootf Protection . Wat~ Supply PlaMine and Finance. Slteam and Lake Protection <br />Water Supply Protection. Conservation and DrouJlht Plilnninl <br />