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<br />m.u~flt:tu::::OfJ!tliiJP"IIDl'C'" <br /> <br />Drainage Requirements <br />In order for the proposed Flood Contro"1 Plan to function properly for <br /> <br />the life of the project, the City of Montros.e ~ho'Jld guide futUl;e develop-, 1- ' <br />)-tv...A ':f h{~r _(,~~ {vt'K,/t,,~\I\le<\ l 111/T1 I-f,~.I!~""~;/~'111 Ld f; he' VI~, :I::' . <br />ment SO that runoff will not be drastically increase~ This should be (~,J ;," <br /> <br />done by review of drainage plans submitted with applications for building <br />-/ffJ'v^ (P".:,.l"VL/-j""l._ .:" /~hl '1/ c.~......,J1 (/'<"1-(--<'~.~v~ rf- <br />permits and requirements which provide Jacil it'ies for increased drainage <br />-' <br /> <br />-ft! <br />or limit increased flows. <br /> <br />As expansion of the Montrose area moves 'into previously undeveloped <br /> <br />basins, a total drainage plan for each new bas"in should be determined. <br /> <br />As each new subdivider comes into the area, il drainage study should \. <br />"~ \\v. ~e~\~v. <br />be required by the City of Montrose or Montrose County, to 'insure that <br />... <br /> <br />th," developer adequately drains his own property, and that flows be con- <br /> <br /> <br />veyed from his property into the outfall system. Each developer should <br /> <br />also be required to contribute his shar'e of the outfan system, whether <br /> <br />by construction of a part of the system, or by contributing his fair <br /> <br />share of the cost of such a system. The legal aspects of subjecting de- <br /> <br />ve'lopers to such requirements should be thoroughly evaluated. Drainage <br /> <br /> <br />studies submitted by developers should address the followincj, at a <br /> <br />minimum: <br /> <br />1. A drainage basin map should be prepared which is a topographic <br /> <br /> <br />map showing all off-site drainage basins that contribute run- <br /> <br />off to the site and the local basins within the property <br /> <br />boundaries. This map shou1 d a1 so incl ude flow arrows showing <br /> <br /> <br />the drainage pattern; and hydrolog'ic and hydraulic information <br /> <br />as described in 2 and 3 below. <br /> <br />- 36 - <br />