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The maximum water demand will occur when reclamation is nearly complete, yet the <br /> • mining production is at its peak. In this condition, annual water use is projected to be 2,430 acre <br /> r feet as shown in Table 4. <br /> r Table 4 <br /> Estimated Maximum Water Demand <br /> AREA WATER USE <br /> LAND USE Acres Ac. FtJYr. <br /> Mined Area 15 1,119 <br /> Row Crops 69 207 <br /> Transition 298 894 <br /> Orchard 70 210 <br /> t _ <br /> F Total 2,430 <br /> 4.36 Ac. Ft/Ac) <br /> When mining is complete, water demand will decrease to 1,311 acre feet, the amount <br /> I needed to irrigate the row crops, trees, and transitional slopes. After completion of the mining <br /> } activities, water use will, therefore, be essentially equal to current use. <br /> IV. RELATIONSHIP OF INCREASED WATER USE TO AVAILABLE SUPPLY <br /> Throughout the operation of the quarry, water will be supplied both by surface water and <br /> groundwater. Groundwater will be utilized for mining purposes and surface water will be utilized <br /> for irrigating the existing almond orchard and for irrigating the reclaimed land used for row crops <br /> and permanent crops. Based on the demonstrated sustainability of the underlying groundwater, <br /> the temporary nature of the increased water use, and the ultimate reduction in water use to a level <br /> " near current surface water demand, it is expected that the groundwater basin can easily <br /> I accommodate the increased water use projected to result due to the proposed mining expansion <br /> project without measurable impact to the aquifer or surrounding users. <br /> 'y <br /> STODDARD&ASSOCIATES Assessment of Water Supply Impacts AUGUST 1995 4 PAGE 7 <br /> ti } <br />