Agenda - 02-18-1986 - Laserfiche WebLink

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08i use for recently approved and pending projects was 0.81 MOD . If added to current water demand (4.60 MOD) , the projected demand becomes 5 .41 MILD . As indicat',ed previously , the current safe yield (Lake Orange) is estimated at 2.2 MOD. With recommended improvements, the combined safe yield would increase to 3 .43 MGD . If additional provisions of the Manager ' s recommended policy statement are implemented , reductions in the water demand can be obtained . As a minimum, these might include the following : 1 . Development of Back—Up Sources Orange'—Alamance (Inter—Basin Transfer/Mebane) <0 .44 MGD Hillsborough (Inter—Basin Transfer/OWASA) <1 .60 MOD 2. Adjustment of In—Stream Flow Requirements Adjustment (NCDWR to Unadjusted) 0 .71 MGD With the above steps , a total reduction in water demand of 2.7.5 MGD could be accomplished . This would reduce demand in low flow periods to 2.66 MGD or below the combined safe yield of 3 .43 MOD for all three reservoirs . RECOMMENDATION, Until a polLicy decision is made, it is impossible for the Planning Staff to make an objective evaluation of the impact of Scotswood or other developments . The policy decision must address improvements to increase safe yields, maximum withdrawal rates and in—stream flow requirements in order to be able to develop staging plans for new developments. The preliminary analysis above, indicates that with implementation of the policy, sufficient water would be available to serve Scotswood plus other developments . IIt is recommended , however , that a staging plan for Scotswood Ibe approved to establish limits regarding the number of newt units to be connected to the Hillsborough water system over a ten—year period . This is the minimum amount of time projected for planning and construction of a new reservoir facility . A recommended phasing plan for Scotswood is to limit construction of residential units to a maximum of 25% of the total number (626) within a given 2-1/2 year period .