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3°► <br />s The University Lake watershed <br />IN o 1 emonstraec special conditions that warranted <br />protection measures adopted by the Board of Commissioners in <br />that year. The current protection measures go above and beyond <br />the state minimums, and CW status would provide recognition of <br />that fact. <br />Staff also recognizes that impending study of the Cane Creek <br />watershed iqi 1992 may lend credence to a like designation for <br />this water supply. By the same token certain portions -of the <br />Upper Eno basin containing the proposed WS -II segment of the <br />watershed might also be appropriate for this designation, <br />although there is no data to quantify such status at this <br />time. The::::.ountr.,.,.. and:.v:.t:Kawn<: >: of :::a : lebruchn:mav::<::ws:: >:::r <br />P�OJ!14*15: r91 § :KTj4,IID@O=T*l44_ x4�;J <br />The preliminary classification of the Eno basin treats all <br />portions in Orange County the same, even though there are no <br />water sources east of Hillsborough in Orange County. <br />Historically and currently, orange County has separated this <br />basin into the "Upper Eno ", north and west of Lake Ben Johnson <br />in Hillsborough; and the "Lower Eno", from Lake Ben Johnson to <br />the Durham County line. As such, watershed protection measures <br />similar to that of the current WS -III classification have been <br />applied to the zoned portions of the Upper Eno basin since <br />1984. <br />NCDEM, however, has recommended a classification of WS -IV, the <br />lowest quality drinking water classification, for the entire <br />basin. <br />There are a number of complicating factors in the Upper Eno <br />and Lower Eno. In the Upper Eno, what water sources should be <br />protected long -term? How should the suburban <br />corridor/ commercial industrial node along US 70/1 -85 in Efland <br />factor into the classification? In the Lower Eno, is there in <br />fact a watershed "Protected Area" extending west from Durham? <br />Durham City /County staff is recommending the use of buffers <br />rather than WS -IV "protected Area" standards for this area. <br />Staff recommends the following approach to the Eno basin. <br />