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<br />WHEREAS, said report includes revisions to the floodplain of Westerly Creek, as described .- <br />in a LOMR dated April 16, 1996, which was based on more detailed hydrologic and hydraulic .. <br />analyses reflecting effects of ~e Westerly Creek Dam and channel improvements along Westerly <br />Creek; and <br /> <br />WHEREAS, said report also includes revisions to floodplain boundaries along Goldsmith <br />Gulch, South Monaco Street Parkway Overflow, Cherry Creek and Southmoor Park Tributary, as <br />described in a LOMR dated January 8, 1997. This LOMR is a result of construction of Phase III of <br />the Goldsmith Gulch Flood Control Project. <br /> <br />c.R.S AUTHORITY <br />WHEREAS, Section 37-60-106(1)(c), Colorado Revised Statutes, requires the Colorado <br />Water Conservation Board to assist in the prevention of floods and flood damages therefrom; 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 37-60-106(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 e <br /> <br />COMPLIANCE WITH CWCB TECHNICAL STANDARDS <br />WHEREAS, the approximate floodplain information presented in said report dated <br />September 1998 for the City and County of Denver is not consistent with the requirements for <br />approximate floodplain information listed under the Board's "Rules and Regulations for the <br />Designation and Approval of Floodplains and of Storm or Floodwater Runoff Channels in <br />Colorado" (2 CCR 408-1) due to the fact that hydrologic analyses and 100-year peak flow values <br />were not developed or are not available for the flooding sources as listed in Table 3; and <br /> <br />WHEREAS, the CWCB's Guidelines for Determining lOO-year Flood Flows for <br />Approximate Floodplains in Colorado do not provide a regional regression equation for estimating <br />I DO-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 />e <br /> <br />4 <br />