OCR Text |
Show PART V GROUND WATER Estimated storage of recoverable ground water Upper Colorado Region Storage Saturated Hydro- Area Specific thickness Water logic Square 1,000 yield used 1,000 acre-feet group miles acres (percent) (feet) Minimum Maximum 1 1,300 830 5-15 50 1/ 2,100 6,200 7 3,500 2,240 2-5 100 4,480 11,200 2, 4 62,400 39,930 1-2 100 39,900 79,800 5, 6 12,200 7,812 0.5-1 100 3,900 7,800 3, 8 33,100 21,180 0.0.5 100 10,500 Total 112,500 71,992 50,380 115,500 1/ Saturated thickness less than 100 feet in most parts of the basin. Utilization of Ground Water Table 3 shows the estimated average annual volumes of ground water withdrawn and consumed for various uses during the period 1961-65. These estimates are based in part on figures submitted for compilation of U. S. Geological Survey Circular 456, "Estimated Use of Water in the United States, 1960," and in part from preliminary figures submitted for a similar publication of estimated water use in 1965. According to table 3, total volumes of water withdrawn and con- sumed averaged about 133,000 and 40,000 acre-feet per year, respectively. Most of the water was withdrawn for industrial supply. 21 |