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<br />WHEREAS, a detailed study for Westerly Creek, upstream of its confluence with Sand /' 0 <br />Creek, was completed by an engineering consulting firm and is included in said report dated April tit <br />1993; and <br /> <br />C.RS AUTHORITY <br />WHEREAS, Section 37-60-106(l)(c), Colorado Revised Statutes, requires the Colorado <br />Water Conservation Board to assist in the prevention of floods and flood damages tlierefrom; and <br /> <br />WHEREAS, Sections 31-23-301 and 30-28-111, Colorado Revised Statutes, provide that. <br />legislative bodies of local jurisdictions may provide zoning regulations for land uses on or along <br />any storm or floodwater runoff channel or basin only after designation and approval by the <br />Colorado Water Conservation Board; and <br /> <br />WHEREAS, Section 37-60-l06(1)(c), Colorado Revised Statutes, directs the Colorado <br />Water Conservation Board to designate and approve storm or floodwater runoff channels or basins <br />and to make such designations available to legislative bodies of local jurisdictions; and <br /> <br />COMPLIANCE WITH CWCB TECHNICAL STANDARDS <br />WHEREAS, the approximate floodplain information presented in said report dated April <br />1993 for the City and County of Denver is not consistent with the requirements for approximate <br />floodplain information listed under the Board's "Rules and Regulations for the Designation and <br />Approval of Floodplains and of Storm or Floodwater RunoffCharinels in Colorado" (2 CCR 408-1) <br />due to the fact that hydrologic analyses and 100-year peak flow values were not developed or are <br />not available for the flooding sources as listed in Table 3; and <br /> <br />e <br /> <br />WHEREAS, the CWCB's Guidelines for Determining IOO-year Flood Flows for <br />Approximate Floodplains in Colorado do not provide a regional regression equation for estimating <br />100-year peak flow values for streams within the City of Denver or the Urban Drainage and Flood <br />Control District; and <br /> <br />WHEREAS, the City of Denver should follow local floodplain ordinances and Federal <br />Regulations concerning floodplain development and construction activities within the approximate <br />(Zone A) floodplain areas, as listed in Table 3, and require that detailed hydrologic analyses be <br />performed by a registered professional engineer and submitted by the developer prior to a <br />floodplain development permit being issued; and <br /> <br />WHEREAS, the detailed floodplain information presented in said report dated April 1993 <br />for the City and County of Denver is consistent with the requirements for detailed floodplain <br />information listed under the Board's "Rules and Regulations for the Designation and Approval of <br />Floodplains and of Storm or Floodwater Runoff Channels in Colorado" (2 CCR 408-1) <br /> <br />e <br /> <br />4 <br />