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22 <br /> P.O. Box 129 501 Cascade Pointe Lane <br /> Morrisville, NC 27560 Suite 103 <br /> Cary,NC 27513 <br /> (919)467-1239 www.maccomiellandassoc.com <br /> MacCONNELL & Associates, P.C. <br /> "Engineering Today For Tomorrow's Future" <br /> Water Narrative <br /> The potable water system for the proposed development will consist of one onsite community well to <br /> supply water for the development. The design basis is to provide high quality potable water for the future <br /> residents of the Hwy 86 property subdivision. The design is based on minimum NCDEQ standards and <br /> regulations. The system is sized for 49 single-family detached residences. The system is sized for <br /> residential peak flows per NCDEQ guidelines. <br /> The system will consist of a well house, well pump, hydropneumatic tank, liquid chlorine disinfection, <br /> valving and appurtenance.The water will be disinfected with liquid chlorine. The water will be stored in a <br /> hydropneumatics storage tank that will provide the necessary storage required and regulate the pressure of <br /> the distribution system. <br /> Septic Narrative <br /> The subdivision proposed disposing of wastewater effluent by individual onsite systems designed to 15A <br /> NCAC 18E Wastewater Treatment and Dispersal systems and Orange County Rules for Onsite <br /> Wastewater Treatment and Dispersal Systems. Based on a preliminary soils analysis, each site is <br /> anticipated to utilize conventional disposal methods (trench systems). Each home will have a septic tank <br /> sized for the proposed number of bedrooms and if necessary, a pump tank. Influent will flow into the <br /> septic which will provide both treatment and solids removal. An effluent filter will be installed at the <br /> outlet end to prevent solids from leaving the tank. It will then either gravity to the drain field or flow into <br /> a pump tank. The pump tank if required will house the equipment required to pump the septic tank <br /> effluent to the pressure manifold which will proportionally direct the effluent to the drain field. <br />