Agenda - 06-04-1981 - Laserfiche WebLink

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flow, site with adequate storage) are well known, it is unlikely that TA' any major sites have been overlocked by the several reservoir site studies which have been done in the region. Twenty-eight potential reservoir sites have been identified by gather- ing information from these previous studies. It should be noted that only a few of these sites have ever seriously been considered, for water supply use. Table2-.E2 lists potential sites identified in the County as well as existing impoundments by major drainage basin. Information on location, drainage area and storage volume have been given where available. Twenty-year safe yield data have been taken from other sources or calculated for this report . ee Existing and. Potential Reservoir Sites and: Watersheds). In looking at the potential supply available from any of these sites, it does become clear that Orange County does not have any sites that , have the potential for supplying large amounts of water. At some point in the future the County and individual water suppliers will need to think in regional terms for developing new supply sources. Surrounding counties do have sites that are large in comparison to those available within Orange County. The largest of these is Jordan Lake, located in northern Jhatham County. This reservoir will be filled sometime in the fall, of 1981 and has 100 mgd of water avail- able as drinking water. The city of Durham is currently planning for the construction of the Orange Factory Reservoir on the Little River in northern Durham County._ The_project is scheduled to be completed by 1983 and will add an additional 25 mgd of water supply to the Durham system. After this reservoir is filled, Durham will have an excess of water beyond the year 2000. The water from the Durham system is from up- land watersheds and is of high quality. In Alamance County, both Graham-Mebane and the city of Burlington have identified large reservoir sites which they are planning to develop in the future. The Graham-Mebane system has in the planning stages a large new reservoir to be bulJt on Back Creek. This reservoir will be constructed when it is needed and have an estimated safe yield of 17.4 mgd. A large part of the watershed for this reservoir is in northwestern Orange County. The city of Burlington is in the land acquisition stage for the construction of a new reservoir on Greater Alamance Creek one mile west of the Town of Alamance. This reservoir will be built in two stages with a final capacity of 34 mgd. The public water supply systems in Orange County are interconnected with each other and with the municipal systems of Graham-Mebane, Bur- lington and the city of Durham. While these interconnections have been constructed to supply water in emergency situations, they prob- ably are the forerunners of a more regional approach to water supply. Good reservoir sites are not distributed equally among counties in the Piedmont, and counties such as Orange will need to look beyond their borders for water in the future. 21