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<br />Heavener v020107 <br /> <br />EXHIBIT B: COST COMPUTATIONS <br /> <br />I - LAKE STORAGE <br /> <br />Feature <br /> <br />Elevation (feet, <br />NGCD) <br /> <br />(1 ) <br /> <br />(2) <br />478.0 502.5 <br />4688 4780 <br /> <br />Flood Control <br />Conservation <br />Water Supply <br />Heavener Utilities Auth <br />Other Water Supply Users <br />Not Under Contract <br /> <br />-- <br /> <br />- <br /> <br /> <br />Usable <br />Storage <br />(acre-feet) 1/ <br />(3) <br />365,960 <br />46,557 <br />46,557 <br />1 ,766 <br />13,330 <br />31,461 <br /> <br />Percent of <br />Usable Conservation <br />Storage 2/ Storage 3/ <br />4) (5) <br />88.714 <br />11 .286 <br />11 .286 <br />0.428 <br />3.231 <br />7.627 <br /> <br /> <br />100.000 <br />100.000 <br />3.793 <br />28.631 <br />67.576 <br /> <br /> <br />Total Usable Storage 412,517 100.000 <br />Notes: <br />1/ Storage remaining after 100 years of sedimentation from the date the proj ect is operational. <br />Y This percent is used to compute the Users cost (see Exhibit B-III and B-IV). <br />}/ This percent is used to compute the Users storage space (see Article Ib(l). <br /> <br />II - FIRST COST OF STORAGE <br /> <br />Total project cost of construction <br />Less rehabilitation cost J/ <br />Less recreation cost <br /> <br />Joint Use Cost of Construction <br /> <br />Interest during construction 2:./ <br /> <br />Total Project First Cost <br /> <br />$10,380,500 <br /> <br />$10,501,226 <br />-73,266 <br />-47,500 <br /> <br />$ 498,500 <br /> <br />$10,879,000 <br /> <br />~/ Flood damage repairs during 1958 and 1959 <br />2J The interest rate is 2.5%, which was the rate in effect at the time the 1963 Agreement was <br />approved. <br /> <br />11 <br />