34
fied only by drafts of tens of millions of gallons a day. If the trends of the past decade continue as they doubtless will, we may expect an accelerating influx of these industries into the State. Moreover, as the coastal cities grow until their water requirements exceed the local supplies, many will doubtless begin piping water from the recharge areas. Thus, however abundant the ground-water resources may appear today, it seems inevitable that they will eventually be fully appropriated-at least over much of the area.
Studies Needed
Anticipating full development of the artesian water, we should proceed to learn how much water can be claimed and what can be done to increase the water yield. But we have only an inkling of how much water enters the ground and a lesser idea of how much more recharge could be induced by pumping and by artificial recharge. We cannot obtain a reliable estimate of the rate of recharge until there is a more complete accounting of all factors in
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FIGUE 23.-Why Kissgen Spring stopped flowing. r
From about 1936 to 1950, pumpage of ground water in the region around the spring increased more than fourfold, from about 8 to 34 billion gallons a year (25,000 to 105,000 acre-feet a year). As a result, the artesian pressure diminished until it could no longer sustain the spring flow. There was no lasting deficiency in rainfall that might explain why the spring stopped flowim O.
04
04
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FIGUE 23.-Why Kissingen Spring stopped flowing.
From about 1936 to 1950, pumpage of ground water in the region around the spring increased more than fourfold, from about 8 to 34 billion gallons a year (25,000 to 105,000 acre-feet a year). As a result, the artesian pressure diminished until it could no longer sustain the spring flow. There was no lasting deficiency in rainfall that might explain why the -spring stopped f lowing.