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December 13, 2007 <br />Job No. 03-0025 <br />Page 2 of 5 pages <br />EXHIBIT "D" (continued) <br />(c) Water diversions and impoundments will be done in a way to prevent <br />erosion and sedimentation going into West Plum Creek. Care will be <br />taken while mining to divert the storm water to the earthen berms that <br />will be constructed to control the speed of the run off and yet maintain a <br />flow as required. <br />(d) The size of area that will be worked at any one time follows: <br />Phase 1) 3.50 acres <br />Phase 2) 3.07 acres <br />Phase 3) 3.33 acres <br />Phase 4) 3.16 acres <br />Phase 5) 2.95 acres <br />PLEASE SEE EXHIBIT "C" MINING MAP <br />(e) All times in the timetable are dependent upon market conditions. <br />The mining timetable is as follows: <br />PHASE 1: 3.50 ACRES <br />START MINING SPRING OF 2008 AND TAKE TWO (2) YEARS <br />TO MINE, 2009-2013. <br />PHASE 2: 3.07 ACRES <br />MINING IS TO START AFTER PHASE 1 & PLANS TO TAKE <br />TWO (2) YEARS TO MINE, 2013-2017. <br />PHASE 3: 3.33 ACRES <br />MINING IS TO START AFTER PHASE 2 & PLANS TO TAKE <br />FOUR (2) YEARS TO MINE, 2017-2021. <br />PHASE 4: 3.16 ACRES <br />MINING IS TO START AFTER PHASE 3 & PLANS TO TAKE <br />FOUR YEARS TO MINE, 2021-2025. <br />PHASE 5: 2.95 ACRES <br />MINING IS TO START AFTER PHASE 4 & PLANS TO TAKE <br />FOUR YEARS TO MINE, 2025-2029. <br />ALL DATES ARE DE-'ENDENT ON MARKET DEMAND. <br />G:\Drawings\2003\03-0025\docs\GRAVEL PIT (S1P)EXHIBIT D.doc <br />