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<br />12. Aherns, T.P., 1950, Groundwater investigation, Granby Pump Canal, Colorado Big Thompson
<br />Project, Colorado: Bureau of Reclamation.
<br />
<br />13. Alley, W.M., Bauer, D.P., Veenhuis, J.E., and Brennan, R., 1979, Hydrologic effects of annually
<br />diverting 131,000 acre-feet of water from Dillon Reservoir, central Colorado: U.S. Geological
<br />Survey Water-Resources Investigations 79-2, 17 p. [Available from National Technical
<br />Information Service, Springfield, V A 22161 as NTIS Report ADA-072 555.]
<br />
<br />Because of the increased demands for water in eastern Colorado, principally in the
<br />urbanizing Denver metropolitan area, increased diversions of water from Dillon
<br />Reservoir are planned. Estimates of end-of-month storage in Dillon Reservoir,
<br />assuming the reservoir was in place and 131,000 acre-feet of water were diverted from
<br />the reservoir each year, were reconstructed by mass balance for the 1931-77 water
<br />years. Based on the analysis, the annual maximum end-of-month drawdown below
<br />the elevation at full storage would have averaged 54 feet. The maximumend-of-
<br />month draw down below the elevation at full storage would have been 171 feet. The
<br />mean-annual discharge-weighted dissolved-solids concentrations in the Colorado
<br />River near Glenwood Springs and Cameo, Colo., and Cisco, Utah, for the 1942-77
<br />water years, were computed assuming an annual diversion of 131,000 acre-feet of
<br />water from Dillon Reservoir. The average increases in the dissolved-solids
<br />concentrations with the 131,000 acre-foot diversion were 15 to 16 milligrams per
<br />liter at the three sites.
<br />
<br />14. Alley, W.M., Britton, L.J., and Boyd, E.L., 1978, Reconnaissance evaluation of water
<br />resources for hydraulic coal mining, Crested Butte Coal Field, Gunnison County, Colorado:
<br />U.S. Geological Survey Open-File Report 78-938, 23 p.
<br />
<br />15. Alley, W.M., Britton, L.J., and Boyd, E.L., 1978, Reconnaissance evaluation of water resources
<br />for hydraulic coal mining, Grand Hogback Coal Field, Garfield and Rio Blanco Counties,
<br />Colorado: U.S. Geological Survey Open-File Report 78-885, 37 p.
<br />
<br />16. American Geological Institute, comp., 1976, 1983a, Bibliography and index of Colorado
<br />geology: Denver, Colo., Colorado Geological Survey Bulletins. Bulletins as follows: .1976,
<br />1875 to 1975, Bulletin 37,488 p.; 1983, 1975-1980, Bulletin 45, 294 p.
<br />
<br />17. American Geological Institute, comp., 1983b, 1987, 1990, Bibliography and index of Colorado
<br />geology: Denver, Colo., Colorado Geological Survey Information Series. Series as follows:
<br />1983,1981-1982, Information Series 19,595 p.; 1987, 1983, Information Series 21, 127 p.; 1990,
<br />1984-1989, Information Series 30, 584 p.
<br />
<br />18. American Geological Institute and National Park Service, 1981, Draft alternatives for the
<br />Colorado River management plan: American Geological Institute, U.S. Department of the
<br />Interior National Park Service, various pagination.
<br />
<br />BIBLIOGRAPHY 15
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