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26 <br /> Cane Creek Watershed <br /> November 5, 1993 <br /> Page 2 <br /> Orange County Response: Citing CDM's 1989 University Lake Watershed Study, County staff <br /> recommend rezoning the entire Cane Creek watershed to 2-acre minimum lots. This was based <br /> on the following statement from the CDM report: "In the absence of a Cane Creek Reservoir <br /> watershed management study, preliminary evaluations suggest that adequate water quality <br /> protection can be achieved through less stringent controls than are required for University Lake. <br /> At this juncture, we would recommend that consideration be given to a preliminary non-structural <br /> management strategy consisting of 2-acre single family lot zoning,' <br /> OWASA Starr Comment: Under the County's proposal, 2-acre lots could be developed with up <br /> to 10.5 percent impervious coverage. County staff failed to note that CDM's preliminary analysis <br /> was based on the assumption that im :zu'.0 • w• '. '1+' . t <br /> rather than 10.5 percent proposed by the County. In fact, the lot size which corresponds to 6 <br /> percent impervious coverage in the County's own sliding scale is s acres -precisely what the <br /> OWASA Board recommended to the Commissioners on August 23. <br /> • Consistent with CDM's preliminary recommendations in the 1989 University Lake <br /> Watershed Study, and consistent with the Authority's August 23. 1993 statement to the <br /> Commissioners, Interim regulations for the entire Cane Creek watershed should require <br /> either (a) A minimum 5-acre lot size, with imperviousness determined by the proposed <br /> sliding scale, or (b)A uniform impervious surface limit of 6 percent, regardIess of lot size, <br /> OWASA Position 3: Allow the provision of water and wastewater service only through <br /> individual onsite wells and disposal systems; no municipal or community level wastewater <br /> disposal. <br /> Orange County Response: Municipal level utility service is neither proposed nor feasible for the <br /> Cane Creek area; however, the restrictions on new community scale water and wastewater <br /> systems which already apply in the University Lake watershed are not proposed for Cane Creek. <br /> OWASA Staff Comment: <br /> • The same requirements already in place for water and wastewater services in the <br /> University Lake watershed should be applied throughout the Cane Creek watershed. <br /> OWASA Position: Strong support and appreciation for strict measures to be left in place for <br /> the University Lake watershed. <br /> Orange County Response: Existing County rules require that septic systems and structures be <br /> set back at least 300 and 150 feet, respectively, from all perennial and intermittent streams. <br /> County staff and Planning Board recommend reducing these setback requirements such that septic <br /> systems and structures be located outside of '. offer • U.► k _in - ' • <br /> intermittent sycas whiche <br /> m ver is a ter,. (Buffers are calculated on the basis of slope and <br /> vegetation. The maximum buffer width in PW Areas is 150 feet; there is no maximum buffer <br /> Afl i7bb QRR(R '(111 YN4 'K'C'W 'M 'n O,'cr Tu.r ca_c _renal <br />