ORD-2010-025 Upper Eno Watershed Critical Area-Zoning Ordinance

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Proposed Amendments to Article 22 of the Zoning Ordinance (additions are underlined, deletions are in strike-through text) ARTICLE 22 DEFINITIONS Critical Area, County Designated -The land area within one-half mile of the normal pool elevation (or designated elevation) of an existing Class II water supply .~_~__ _ ~~__ _ _c aV. ..._a_..~L....J ...L.:..M... ...r .n lnnn• nr~rl +h^ ~7nr-~ OYC7 within one-half mile of the normal pool elevation (or aesianatea eievarion~ yr a proposed water supply reservoir designated for protection or the ridaeline of the watershed whichever is less and the area within one-half mile of streams flowing into Class I reservoirs as designated for protection within the Zoning Ordinance. Amended 1 /4/94 Critical Area, State Required -The land area within one-half mile of the normal pool elevation of ^^ ^~~°+~^^ ^~ ^r^^^c°`~-water supply +rep~treservoirs in which an intake is located (i.e. Class I reservoirs), or the ridgeline of the watershed, whichever is less. Reservoir, Class I - A body of water such as a pond or lake confined by a dam or other barrier to be used for public water supply from which water flows by gravity or is pumped directly to a treatment plant or to a small intervening storage basin and thence to a treatment plant. Reservoir, Class II - A body of water such as a pond or lake confined by a dam or other barrier to be used for public water supply from which water flows by gravity or is pumped to a Class I reservoir prior to final entrance to a water treatment plant. 11 Stream Order - A ranking of the relative sizes of streams within a watershed based on the nature of their tributaries. Th.e smallest unbranched tributary is called first order the stream receiving the tributary is called second order, and so on. Amended 1/4/94 Watersupply Watershed (or Protected Watershed) Land that drains to existing reservoirs which are public water supplies or potential reservoir sites or stream intakes which have been designated for protection. All such lands have been classified by the Environmental Management Commission as WS-II, WS-III or WS-IV watersheds and require protection in accordance with the State Mandate.