Agenda - 09-16-2008 - Laserfiche WebLink

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Water Supply Reservoir Water Levels Available information as of 10:00 AM, Thursday, September 11, 2008 Lake Orange • Water level is full and spilling slightly and has been doing so since early on September 6th. The water level has risen over 17" as a result of the rainfall associated with tropical storm Hanna. Releases from Lake Orange have been generally curtailed for the most part (some release to the east fork of the Eno is nearly always necessary) since the morning of Wednesday, August 27 (with one exception). The release from Lake Orange was increased in the late afternoon of Friday, September 5th (we could not predict what the effect of Hanna would be and instream flows were dropping quickly) and then decreased again as much as possible on Monday, September 8th. Stage II Eno Capacity Use restrictions have been rescinded since 12:01 PM, August 28tH. In all probability, Capacity Use Restrictions will end, at least temporarily, at midnight on September 12tH • Water storage capacity is at 100% (475 million gallons) • Approximately 141 days of water supply remaining (at Capacity Use specified release rate). • The Hillsborough gage indicates that the latest Eno River flows are at approximately 28 cfs (18.1 mgd). This flow represents a level that is 3.5 times the historical median flow level (8.0 cfs) for this day of the year. • Orange Alamance has begun operating its water plant five days a week (Monday- Friday) with average withdrawals of 300,000 gallons per day. West Fork Reservoir (as of 9/5/2008 (last available updatel) • Water level is 2" below spilling • Water storage capacity remaining is 99.6% • Approximately 328 days of water supply remaining (assuming Town's current release rate (3.5 cfs, 2.26 mgd). • The Town has been releasing 3.5 cfs or 1.61 mgd above its minimum required instream flow release of 1.0 cfs (0.65 mgd) for September and is thus releasing all the water it withdraws plus additional water to supplement instream flow that is normally released from Lake Orange. • The Town of Hillsborough Town Board currently has no water use restrictions on its customers in effect. OWASA Reservoirs • Water level at Cane Creek Reservoir is 11" below full • Water level at University Lake is full • Total remaining water storage capacity is approximately 96 % • Approximately 372 days of water supply remain with no additional rainfall (at the current 30- day average daily demand [9.2 million gallons per day]) • OWASA's year -round water conservation requirements are in effect