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3 <br />c) Utilize subdivision regulations to limit site disturbance, direct structure orientation on lot, <br />determine native landscaping options, limit irrigation types, require construction debris <br />recycling and compliance with the Upper Neuse Site Evaluation Tool. <br />d) Institute incentive based voluntary compliance program with EPA `Energy Star' and <br />`Green Building' techniques for all residential construction both one and two family <br />dwellings, and multi-family (apartments, condominiums). <br />Phase III: Assessment and Possible Private Sector Mandate - Fa112010 <br />a) Require mandatory compliance with EPA `Energy Star' for all residential buildings, <br />publicly or privately funded. <br />b) Evaluate both mandatory (EPA Energy Star) and voluntary (LEED, Green Globes, <br />NCHBA) programs at the end of 2010 .and report on progress to date, with <br />recommendations for increase of voluntary compliance incentives or possible mandatory <br />requirements for one-and two-family and multi-family residential dwellings. <br />B. Pervious Pavement <br />On February 13, 2008, representatives from the Planning Department (2), Erosion Control (2), <br />Inspections (1), Purchasing (1), and the County Manager's Office (1) met with a private resident <br />to listen to a teleconference on practical applications of pervious pavement. Attached is a copy <br />of the PowerPoint presentation from the February 13th session. <br />While pervious pavement can take many forms, the example presented was. a "no-fines" <br />concrete. The material, when poured in place, resembles a Rice Krispies treat. The material <br />has 15 to 25% void space with a porosity ranging from 150 to 400 inches per hour. The <br />pervious pavement can be used in residential situations for driveways, sidewalks, and patios, <br />and in commercial, industrial, and institutional applications as sidewalks, trails, sports courts in <br />combination with plastic grids, parking surfaces, drive aisles, and roadways. For parking lot <br />drive aisles and roadways, pervious pavement requires additional material strength. Increasing <br />material strength reduces porosity. <br />With a granular sub-base and a stormwater collection system, pervious concrete paving can <br />provide innovative approaches to low-impact designs for residential and commercial <br />development. The application can be cost effective and may result in more ecologically <br />sensitive development. <br />Issue: <br />The North Carolina Department of Environment and Natural Resources (NCDENR) does not <br />recognize typical pervious concrete pavement as a viable method to treat stormwater quantity <br />and quality in the Piedmont region. The fine particles that make up the majority of Piedmont <br />soils do not allow the stormwater that passes through pervious pavement to readily infiltrate into <br />the ground. Additionally, fine particle .sediment can clog permeable pavement if not maintained <br />correctly. Therefore, porous pavement may still be considered impervious by NCDENR because <br />of the nature of the tight clay soils found throughout Orange County. <br />However, even with clay soils, pervious pavement can have benefits if engineered with a <br />collection system below the pavement. Using pervious pavement in this manner may reduce <br />the size or amount of stormwater management facilities required and can filter out many solid <br />materials and pollutants. suspended in stormwater runoff typically found in the "first flush" of any <br />stormwater event. Oils and greases, heavy metals, sediments, fertilizers, and air-borne <br />