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<br /> Eno River Water Management Plan Table 1 Revised March 2000
<br /> Maximum Allowable Surface Water Withdrawals Based on Lake Orange Water Level
<br /> Allowable Surface Water Withdrawal Instream Flow Requirement at Hillsborough Gage
<br /> Percent of (gallons per day) (gallons per day)
<br /> Storage Drawdown
<br /> Remaining in feet from From Total Flow at
<br /> at Lake top of 1-ft. Town of Orange- Piedmont From West Fork Eno Hillsborough
<br /> Orange flashboard Hillsborough+ Alamance Minerals Lake Orange Reservoir Gage
<br /> > 100 spilling *t * "* 1,100,000 650,000 1,750,000
<br /> Stage 1 100 - 80 0.0 1,510,000t 820,000 430,000 1,100,000 650,000 1,750,000
<br /> Stage 2 80 -60 2.0 1,360,000t 740,000 380,000 650,000 650,000 1,300,000
<br /> Stage 3 60 - 50 4.3 1,280,000t 700,000 360,000 450,000 650,000 1,100,000
<br /> Stage 4 50 -40 5.8 1,280,000t 700,000 320,000 450,000 650,000 1,100,000
<br /> Stage 5 40 - 30 7.4 1,130,000t 620,000 190,000 0 650,000 650,000
<br /> Stage 6 �= 30 9.3 680,000' 370,000 0 0 650,000 650,000
<br /> Notes:
<br /> + Allowable withdrawals for Hillsborough shown above do not include withdrawals of water supply releases from West Fork Eno Reservoir.
<br /> * - Adjusted to reflect outside source agreement for Hillsborough and Orange-Alamance.
<br /> - Excess withdrawals from Eno River based on outside source agreement may be made when flows at the Eno River at Hillsborough Gage are 10
<br /> cubic feet per second(cfs) and above,regardless of water level in Lake Orange. Maximum withdrawals shall be limited to the total of the contract
<br /> amount and the allocated amount.
<br /> - A low flow period will begin on the 7`'consecutive day of the average daily flow at the Hillsborough Gage dropping below 10 cfs. On the 4`i'day,
<br /> the Orange County Engineer will request that affected parties prepare for a low flow period.
<br /> - When flows are between 10 cfs and 3 cfs at the Hillsborough Gage during a low flow period,withdrawals from the Eno River shall be limited to the
<br /> Stage 1 amount shown above (100-80 percent of storage remaining), regardless of water level in Lake Orange.
<br /> - When flows are below 3 cfs at the Hillsborough Gage during a low flow period, withdrawals shall be limited to amounts shown above for percent of
<br /> storage remaining at Lake Orange.
<br /> - A low flow period will be terminated when average daily flow at the Hillsborough Gage registers 10 cfs or greater for a period of 7 consecutive
<br /> days. The Orange County Engineer will notify affected parties when the low flow period is terminated.
<br /> "For Piedmont Minerals: When flows at the Hillsborough Gage are 14 cfs and above,withdrawals from the Eno River will be limited to 900,000
<br /> gallons per day(gpd). Between 14 cfs and 4 cfs, withdrawals will be limited to 430,000 gpd,regardless of water level in Lake Orange. Below 4 cfs,
<br /> withdrawals will be limited to amounts shown above for percent of storage remaining.
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