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4 <br />7. DEFI=TION OF NEW DEVELOPKENT <br />subdivide" window <br />''or developers wi <br />of 12 -18 months. <br />10. CRITICAL WATERSHED (CW) DESIGNATION <br />permitting <br />mgna, m < -rne university <br />ratedk"special conditions <br />pted by Orange County <br />vide for no further <br />this watershed. The <br />and beyond the state <br />Watershed designation <br />that warranted protection measures ado <br />and Carrboro in that year that pro <br />degradation of the water quality in <br />current protection measures go above <br />minimum standards for WS -2, and Critical <br />would provide recognition of that fact. <br />11. UPPER ENO BASIN CLASSIFICATION <br />As previously stated, the preliminary classification of the <br />Eno River basin treats all portions of the basin in the same <br />manner. There are significant differences, however, between <br />sub - basins in the Eno River. These difference range from <br />density of existing development to location of existing and <br />future water supplies. There are three existing water bodies <br />(two serving as supplies) and three proposed water supplies in <br />the Upper and Middle Eno basins. There are no water supplies <br />existing or proposed in the Lower Eno basin, with the <br />exception of the City of Durham's emergency water intake on <br />the Eno. The future disposition of this emergency water source <br />is currently being discussed by Durham County and Durham City. <br />Historically and to this day, Orange County has separated this <br />basin into the "Upper Eno ", located north and west of Lake Ben <br />Johnson in Hillsborough; and the "Lower Eno ", from Lake Ben <br />Johnson to the Durham County line. As such, watershed <br />protection measures similar to that of the proposed WS -III <br />classification have been applied to the zoned portions of the <br />Upper Eno basin since 1984. Recent policy discussion on the <br />implications of Interstate 85/40 and the Efland community have <br />led the County to add a third sub -basin to reflect the <br />different character of the "Middle Eno ", from Corporation Lake <br />to Lake Ben Johnson. <br />In its preliminary watershed classifications, NCDEM has <br />recommended a classification of WS -IV for the entire basin. <br />