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2. Define ctrolnoge areas and vofumes. rotes, and potns of <br />stormwater runoff. <br />theMCWD. <br />2. Accepted en^neering practice sfxjil be used m me <br />determination of erosion potential. <br />3. All ponding areas stxall be desigrved for the 1; 10; and 100-year <br />cnticai storm events. <br />jL atyofOrono <br />OnfiSUrtlKtWMtrMtnsgenteotPlin <br />2-6 <br />Coils and PtiUes <br />A <br />• Design criterlo: 1:10; and 100-yeor crltlcol storm events. <br />• Identify preiimlnoty sizes for future pipes or channeb. <br />• Identify minor wotersheds within mose Identified in the <br />Wotershed Manogement Pion. <br />• Identify locations of waterways. <br />• Demonstrate conformance wtth the hydrology of the <br />Watershed Manogement Plan. <br />3. Identify storage sites Including weflarKis. <br />. Design crfferlo: 1; 10; and 100-yeor critical storm events. <br />• Define storage volumes. <br />• Define rrotmol water elevations. <br />• Define 100-yeor high water elevotions. <br />• Define outflow rates. <br />4. Define water quality protection methods odequote to meet <br />standards established In fhe Watershed Manogement Pion. <br />5. Identify regulated oreos. <br />6. Set form on implementation program, including: <br />• Description of official controls. <br />• Capitol Improvement Program. <br />2.2.2 Storm Runoff and Discharge Standards <br />I. All proposed storm sewers will be capoWe of discharging me 5- <br />year storm rurroff wfthout bitroduclrrg sediment into the waters of <br />W ' <br />L. <br />2.2.3 Flood Plain Management Standards <br />1. 100-yeor flood levels shaa be determined based on ultimate <br />development of me tributory wotershed. <br />2. The minimum building opening elevation shall be of leost 2 feet <br />obove the 100-yeor flood elevation.