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<br /> <br /> <br />SUMMARY OF FINDINGS <br />0, <br />(.) <br />... Mineral industry has contributed substantially to the strong <br />(:~ growth economy of the Lower Colorado Region during the post-World <br />00 War II era. In terms of 1958 dollars, value of mineral production <br />~ was $606 million in 1965, up approximately 200 percent from levels <br />of the late 1940's. Projections for the future, formulated under <br />two sets of criteria with 1965 as the base year, indicate that the <br />value of mineral production should increase 60 to 90 percent by <br />1980,' and could advance 8S much as 190 to 300 percent by 2020, <br /> <br />Water needs of mineral industry are modest--dep1etions in 1965 <br />were only about 60,000 acre-feet, Anticipated efficiencies in water <br />use by the industry will be countered by the need to process lower <br />grade ores in the future; therefore, increased water requirements <br />through 2020 will tend to parallel the upward trend in value of <br />mineral output, Water depletions are expected to increase 50 to 65 <br />percent by 1980, and 190 to 275 percent by 2020. <br /> <br />!'j <br />., <br />il <br />Ii <br /> <br />Regionwide land needs for active mineral production are negligible-- <br />approximately 76,000 acres were used in 1965. Responsible reclamation <br />efforts'by the industry are on the increase and seem certain to <br />minimize environmental impacts related to mining. Future land needs <br />are expe~ted to increase nominally, up about 30 to 50 percent by <br />1980 and' 65 to 190 percent by 2020. <br /> <br />i <br /> <br />,!j <br />~J <br />f <br /> <br />