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137 <br /> comprehending the concept of the stream buffers. <br /> Willis responded that there had been no recent <br /> inquiries regarding the stream buffers. <br /> The next item reviewed by Willis was restrictions <br /> on the use of septic easements. <br /> Currently, the use of off-site septic easements <br /> (except as needed for repair area) is prohibited in <br /> the University Lake Watershed. In the amendments <br /> presented for public hearing in August, it was <br /> proposed that the ULW restrictions pertaining to <br /> septic easements be extended to apply to all <br /> protected watersheds. <br /> The Orange County Division of Environmental Health <br /> reviewed the provisions and indicated that the <br /> prohibition of individual off-site septic easements <br /> would not enhance water quality, and that allowing <br /> easements could be beneficial in some cases due to <br /> greater flexibility in locating and designing septic <br /> systems. <br /> In response to these concerns, it is recommended <br /> that there be no change to current regulations <br /> regarding the use of septic easements. The <br /> Subdivision Regulations require the lot on which the <br /> septic easement is located contain at least 20, 000 <br /> square feet in addition to the minimum lot size <br /> required by the zoning district. It is recommended <br /> that this provision also be made explicit in the <br /> Zoning Ordinance. <br /> Willis continued addressing construction of non- <br /> residential BMPs in residential zoning districts. <br /> Parking lots, septic systems and water supplies are <br /> required to be located within a zoning district that <br /> allows the primary use which the facilities serve. <br /> The same provision would apply to non-residential <br /> detention. <br /> The result of this provision is that the non- <br /> residential zoning lot may require a significant <br /> amount of land area for infrastructure needs. The <br /> acreage requirement does not pose a significant <br /> problem in Commercial or Industrial Activity Nodes <br /> ( such as those in Efland or the vicinity of I-85 <br /> near the Durham County line) . This limit could be a <br /> problem in Rural Activity nodes when there is a <br /> limit of 10 acres of non-residential zoning which <br /> can be approved with in the node. <br /> The Planning Staff recommends that detention ponds <br /> be located on the same zoning lot as the development <br />