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150 <br /> MEMORANDUM <br /> TO: ORANGE COUNTY PLANNING BOARD <br /> FROM: MARVIN COLLIN1S, PLANNING DIRECTOR <br /> DATE: MAY 22, 1987 <br /> SUBJECT: WILDWOOD SECTION IV - DEVELOPMENT IMPACTS <br /> DEk!S I TY CONSIDERATIONS <br /> The current zoning designation for the proposed Section IV of <br /> Wlldwood Subdivision is R-2 . Discounting 15% of the land area <br /> for streets and 5 . 6% for required recreation space, the <br /> maximum number of dwelling units which could be developed <br /> ( @ 20, 000 sq . ft. /unit) is 49 . If rezoned to an R-3 <br /> designation with a minimum required lot area of 15, 000 sq . ft. <br /> and a recreation space ratio of 7 . 4%, 65 units could be <br /> developed. Finally, if rezoned to an R-4 designation as <br /> requested, with a 10, 000 sq . ft. lot area requirement and <br /> 11 . 1% recreation space ratio, 92 units could be developed . <br /> The resulting densities under different development scenarios <br /> would be 1 .7 units/acre @ R-2, 2.3 units/acre @ R-3 and 3. 2 <br /> units/acre @ R-4 . <br /> PUBLIC WATER AND S.EWER SERVICE <br /> The Town of Hillsborough water and sewer system currently <br /> serves Wildwood Subdivision Section 1- III . Water is supplied <br /> through a 12- inch main extending from existing sections of <br /> the subdivision back to the city-wide system at U. S . 70 <br /> Business . ( See accompanying map . ) Additional mains would be <br /> extended into the proposed Section IV in accordance with Town <br /> of Hillsborough water extension policies. <br /> Sewage from the proposed Section IV would be collected from <br /> new sewer mains by an 8- inch gravity line extending along the <br /> eastern property line. The sewage would empty into the <br /> Wildwood pumping station, south of the Southern Railroad, <br /> where It would be pumped by a 7 .3 duplex station through a fl- <br /> inch force main to U. S. 70 Business . The 6- inch line reduces <br /> to a 3- inch force main at that point, extending all the way <br /> to the wastewater treatment plant. ( See accompanying map. ) <br /> The 3- inch force main as well as the Wildwood pumping station <br /> are limiting factors in determining sewage transport capacity <br /> from the area. The Wildwood pump station has an average <br /> excess capacity of 14,725 GPD. The calculation of excess <br /> capacity included an ultimate build-out in Wildwood of 250 <br /> units and a proposed 60-unit motel at the I-85/N. C. 86 <br /> interchange. <br /> An R-4 rezoning of the 28 . 8 acre tract could result in as <br /> many as 92 units, considering land removed from building lots <br />