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<br />tJ~. <br />'.,,(JI~' <br />~,.I.,~ . <br />:,~' <br /> <br />DEPARTMENT OF TH.. ARMY <br />CORPS OF ENGrNEJrRS, OMAHA DISTRICT <br />106 SOUTH' liTH gT~II!:ET <br />OMAHA, ~IHJR.ASKA 61'1: 102-1 61 fl <br /> <br />August 4. 2003 <br /> <br />Rr;PLV TO <br />ATTf;NTION OF": <br /> <br />District Engineer <br /> <br />Mr. Larry Lang <br />Colorado Water Conscl>Iation Board <br />lJepar1ment of Natura! Kesources <br />1313 Sherman Street, Room 721 <br />Denver, Colorado 80203 <br /> <br />Dear Mr. Lang: <br /> <br />This is in reply to your July 15,2003 letter regarding the Chmy Creek Probabie <br />Maximum Precipitation (PMP) T echnioal Review (copy enclosed). <br /> <br />1 appreciate the Omaha District having the opportunity to obsel>le the Cherry <br />Creek PMP Technical Review process. The ellmbineu eITons of the Colorado Water <br />Conservation Board (CWCB) and Cherry Creck PMP Advisory Committee (Working <br />Gmup) have clarified the Issues related to the Cherry Creek PMP, <br /> <br />The Corps' response 10 the proposed requests/options provided in your letter are <br />as follows: <br /> <br />Request No. I - Call the Corps use the A W A PMP values antlth" Corps' 1995 <br />PM!' modcl, the Corps will compute the PMF storage pool volume and compare the <br />value to the existing reservoir space and Corps' 1995 s[Drage volume that presently has a <br />requirement for an additional! 00,000 Acre-Foot of storage space to the existing' resel>loir <br />pool? <br /> <br />Response No. I - Yes, the Corps will perform the task,S outlined in Request I. <br /> <br />Request No.2 - Should the Corps not have the resources to p"rfonn Requesl No. <br />\. can the Corps provide its 1995 PMF Madel to the eWeB so a non-federal PMF <br />volume determination can be computed using the Corps procedures and A W/\'s PMP <br />inpul paramol""? <br /> <br />Response No.2 - Given the Corps is committed to accomplishing your first <br />request, the second request is no longer applicable. <br /> <br />Request No, 3 - Is there an opportunity to revise the Corps' dam safety <br />operational requirements rcg:lfding storage and spill schedules for the Cherry Creek Dam <br />and Rt:servoir? <br />