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Proposed Amendments to Section 4.2.27 of the Zoning Ordinance <br />(additions are underlined, deletions are in strike - through text) <br />*4.2.27 WATERSHED PROTECTION OVERLAY DISTRICTS <br />*Amended <br />1/1/94 a) Intent <br />Attachment 1 7 <br />The purpose of the Watershed Protection Overlay Districts is to <br />prevent significant future water quality deterioration in existing or potential <br />future drinking water reservoirs which receive stormwater runoff from land <br />within Orange County. Protection of all water supplies within the State in <br />accordance with minimum standards was mandated by the Watersupply <br />Watershed Protection Act passed by the General Assembly in 1989. The <br />quality of water in drinking water reservoirs can be affected by human <br />activities including farming, 'Construction of highways and roads, <br />subdivision development, industrial development, and other land- disturbing <br />activities. Types of water pollutants resulting from these activities include <br />sediment, bacterial contamination, heavy metals, synthetic organic <br />compounds and low -level radioactivity. <br />The intent of the Pretested- Watershed Protection Overlay Districts is to <br />apply a set of regulations involving land use and in some cases, structural <br />best management practices which protect the watersheds by reducing the <br />pollution from future development which enters drinking water supplies. <br />Land use management practices involve minimum lot size and impervious <br />surface restrictions, since impervious surfaces such as roads, roof tops and <br />driveways are a major source of pollution. Structural best management <br />practices allow for more intensive land use by providing for temporary <br />detention of stormwater runoff so that pollutants may settle. <br />b) Application Criteria <br />The detested Watershed Protection Overlay Districts as established in <br />Article 4- 214.2.27 overlay other zoning districts established in this <br />Ordinance. The new use of any land or new structure within any PFeteGted <br />Watershed Protection Overlay District shall comply with the use regulations <br />applicable to the underlying zoning district as well as the requirements of <br />the applicable Watershed Protection Overlay District. <br />A Watershed Protection Overlay District will be applied to the Orange <br />County portion of watershed which have been classified as WS -II, WS -III or <br />WS -IV watersheds by the North Carolina Environmental Management <br />Commission in its implementation of the Watersupply Watershed <br />Protection Act of 1989. In accordance with the State Mandate, thirteen (13) <br />Watershed Protection District Overlays, as listed in the following table, are <br />hereby established. <br />Areas designated as "Critical Area" under the Orange County designation <br />are hereby established using the following criteria: <br />1 <br />