07/25/2007 Env Bd Packet - Laserfiche WebLink

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• • (b) To protect water quality and the conveyance capacity of the flood plain, the District will not permit site development whichthat would involve the outside storage of soluble, toxic, or buoyant materials. Examples of acceptable --flood plain uses include open space, golf less than six inches of - flooding (c) Encroachment within- the 100 year flood plain may occur if all -the (1) The flood plain storage volume after encroachment is Rule F. flood - profile: (4) Any structures, facilities, plain-will—be- capable of passing the 100 year flood without of two feet -above-the 100 year Sector the percentage -of -flood plain to total• area is percent. Flood Plain- B includes 12b. (a) groundwater recharge ^ as of the Praii read trails, (b) - - - - - - . - - . - - - - , the- District - will -- not - permit -site development whi ^" storage of soluble, toxic, or buoyant materials. Examples of acceptable --flood plain uses include -open space, golf courses, and parking surfaces located outside of designated recharge areas - with-- -less than -six. inches of -flooding occurring over the surface. (c) Encroachment may occur -in- the - -flood plain areas- of Flood-Plain-Management Sector B if all the exist: (1) The encroachment lies within --ef the 100 year flood plain-in those areas were identified, or +n the absence of an established -fioodway, compensatory (live) storagc4s excavated. (2) The encroachment does net- result ° year flood profile within- the -floodway portion of the -flood -plain by more tthan 0.5 foot or create velocities exceeding 2.5 feet/second or as determined by the District Engineer. (3} The encroachment -does not violate the principle -et "equal DRAFT DOCUMENT 25