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11 <br />ACTUAL FLOW IN DRY FOkK AND LICK CREEK <br />The actual flow in Dry Fork (Fp) will be calculated by adjusting the <br />measured flow (IdD) by the change in storage in Monument keservoir (OSM) <br />and deleting the transbasin Deep Creek diversion (I). The equation is: <br />Pctual Dry Fork Flow FD = Mp+OSM-I <br />The actual flow in Lick Creek is equal to measured flow (ML) since there <br />is no reservoirs or transbasin diversion to affect flow. <br />hViXIhUM NpNTHLY DEPLETIONS <br />The maximum monthly depletions that could result from depleting all the flow <br />from above the retreat mined area under full development of the proposed <br />mine plan were calculated using the "contribution factors" and retreat mined <br />area relationships. <br />Monthly flows for the wet, average, and dry years were determined for <br />Minnesota Creek using stream flow records. The monthly contribution fat tors <br />for Ury Fork ana Lick Creek were then applied to these flows to predict the <br />I wet year, average year, ana dry year monthly flows in the two tributary <br />streams. <br />The maximum monthly depletions were then calculated multiplying the above <br />monthly flows by the ratio of mined area to total drainage basin area. <br />Dry Fork Lick Creek <br />Area of mine in basin 6.83 1.37 <br />Tributary area to gage 7.49 1.76 <br />Ratio 0.912 0.778 <br />Table 3 shows the maximum monthly depletions for both Dry Fork and Lick <br />Creek in wet, average, and dry years. These upper limits assure that there <br />is no runoff from any of the lands above the retreat mined area. This is an <br />extremely conservative assumption. <br />The use of the above equations in the augmentation plan is explained in <br />Section IV. <br />