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days worth of water available far the community. Presently, they are more than 90°~ full <br />in the system and they have 11 months worth of water available. <br />Can we support increased development density? <br />We think so, because: <br />1. OWASA's projections for ultimate future demand correspond to housing and <br />employment levels that are about 20% higher than local build out projections, and <br />2. Readily available conservation technology can support increased development <br />density with little or no net increase in water service demand. <br />By reducing water use only 25 percent per unit, a given volume of water can serve 33 <br />percent more unifs. <br />Greater Water Use Efficiency: <br />- Ultra-Low Flow {ULF) plumbing fixtures <br />- Retrofit upon resale <br />- Rainwater harvesting <br />- Sustainable landscaping <br />- Sub-metering of new multifamily construction <br />- Connection to OWASA's water reuse system whentwhere available <br />- Other CMPs (Conservation Management Practices) as appropriate <br />Many of these advanced efficiency measures can be implemented through existing <br />review and approval procedures. <br />!n most cases, new ordinances or legislation would not be needed. <br />Local Deveiopment Trends r"n Carrboro and Chapel Hii1 <br />- Decreasing supply of raw land <br />- Shift toward smaller SFR lot sizes <br />- More infill and redevelopment, including tear-down <br />- Increasing proportion of new attached, townhouse style residential housing <br />- Proposals for higher intensity mixed-use projects in Carrboro and Chapel Hill <br />- Projected decrease in er unit water demands <br />Recent Trends in OWASA Customer Demands <br />(graphs) <br />- Water sales remain below historic highs <br />- Single family home construction remains stable <br />- Reservoir withdrawals have decreased since 2001 <br />- Reduced drinking water peaks since 1999 <br />- Reduced wastewater peaks since 1999 <br />If these trends continue, the need for costly future plant expansions may be deferred <br />(graphs) <br />- Water plan expansion could be deferred 10+ years <br />