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tit e e WHEREAS, a procedure far determining hydralagy infarmatian in Arapahae Caunty and the incarparated cammunities far the appraximate flaadplains as listed in Table 4 and far ather appraximate flaadplains .of reservairs, lakes, pands, lacal starm drainage areas, and averflaws fram irrigatian ditches and canals has nat been established by the CWCB; and thase flaadplain areas may nat be designated as appraximate flaadplain infarmatian withaut a procedure far estimating lOO-year peak flaws, and therefare the lacal gavernment shauld require that a detailed hydralagic and hydraulic study be perf armed by a professianal engineer and submitted by the develaper .or the develapment propanent priar ta any flaadplain develapment in thase cases; and WHEREAS, hydraulic determinatians far the approximate flaadplains listed in Tables 3 and 4 were prepared by FEMA using approximate hydraulic techniques approved under the Baard's "Rules and Regulatians far the Designatian and Approval .of Flaadplains and .of Starm .or Flaadwater RunaffChannels in Calarada" (2 CCR 408-1); and WHEREAS, Mantgamery Watsan has identified several technical issues related ta the flaadplain infarmatian as fallaws: · The starting water surface elevatian far the Bear Creek flaadplain study is 5 feet higher than the Sauth Platte River at the canfluence lacatian. This difference is cansistent with the difference in that vertical datums faund alang the Sauth Platte River in Adams Caunty, · The approximate flaadplain delineatian an BaxElder Creek is much narrawer than the detailed flaadplain delineatian where the twa meet The difference in width is an the .order .of 800 feet far a length .of abaut 0,75 miles, · In general, there are several instances where the Base Flaad Elevatians shawn an the FIRM panels da nat match the same lacatian an the profiles, It appears that the prafiles are generally carrect · There are several streams within the study area that are currently being madified that will result in revisians ta the existing flaadplains. The .old infarmatian shauld be rescinded and the revised infarmatian shauld be reviewed and designated by the CWCB when appropriate, ;and WHEREAS, Arapahae Caunty and incarparated cammunities shauld cantinue ta regulate new develapment and canstructian in flaadplain areas an a case-by-case basis based an the infarmatian presented in said new Flaad Insurance Study and Hydralagy Addendwn, .or based an the best available flaadplain infarmatian that is accessible ta the Caunty; and DESIGNATION AND APPROVAL ACTION NOW, THEREFORE, BE IT RESOLVED by the Calarada Water Canservatian Baard in regular meeting assembled in Denver, Calarada, this 24th day .of January 2001, that it daes hereby designate and approve as detailed flaadplain infarmatian the 100-year flaadplain delineatians as listed in Table 2 far Arapahae Caunty and incarparated areas (except far the Tawn .of Calwnbine Valley) cantained in said new Flaad Insurance Study dated August 16, 1995 and said new Hydralagy Addendwn dated January 2001, with included Flaad Insurance Rate Maps; and 6