Agenda - 05-22-1989 - Laserfiche WebLink

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Hillsborough's primary source of raw water is Lake Ben Johnson on the Eno River. The impoundment has a 20 year safe yield of 0.43 mgd. Available supply is affected by withdrawals upstream at Corporation Lake, although limited diversions can be made around Corporation Lake from Lake Orange, further upstream. Under optimal conditions 2.5 mgd can be diverted from Lake Orange to Lake Ben Johnson. The Orange County Water Conservation Ordinance, however, allocates 1.8 mgd to Hillsborough from Lake Orange when the lake is at its normal level. This allocation from Lake Orange drops to 0.80 when the lake reaches a crisis level. Lake Orange, which can provide 2.62 mgd, is owned and controlled by Orange County. Hillsborough is connected to OWASA via a 16" pipeline, while a 6" pipeline connects Hillsborough with OAWS. A bond referendum passed um in 1987 gave the town authority to construct an additional connection with Durham. Jordan Lake may provide Hillsborough with up to 6 mgd at some point during the next twenty years. In 1988, the town filed a request with the North Carolina Division of Water Resources for a Level II allocation from the 100 mgd available from Jordan Lake for public water supplies. The request was filed as part of an application submitted jointly with other jurisdictions and agencies in Orange and Chatham Counties. Plans for treatment and transmission of any allocation from Jordan Lake from Hillsborough have not yet been developed. Demand and deficit projections are displayed in.Figure 2- . They indicate that Lake Ben Johnson is severely inadequate when considered as a sole source of supply. Even with a full allocation from Lake Orange under the Orange County Water Conservation Ordinance the Hillsborough system will face a demand deficit by the year 2000. The Town of Hillsborough's preferred future source of water has been identified as a new impoundment on Seven-Mile Creek, which could also serve other County residents in central Orange as well. At this time, discussions are underway between the County and the Town regarding the construction, management and allocation of this possible 6.3 mgd source. Orange Alamance Water Systems. incorporated immfil OAWS is a no-profit association formed in 1969. The system has recently defined a future service area boundary in Orange County. The area to which it provides service crosses the ridge line separating two major drainage basins, the Cape 2.3 text 4