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<br />Appendix D
<br />
<br />RESERVOIRS IN EXISTENCE ON JANUARY 1, 1950
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<br />The extent, if any, of the use of reservoirs in this category which
<br />may be subject to Compact allocations was not determined. As a metter of
<br />hydrologic interest, the month-end contents in acre-feet of four reser-
<br />voirs are given. The first three reservoirs are in the Bighorn River Basin
<br />in WY~ng and data on contents were furnished by the U. S. Bureau of
<br />Reclamation. Tongue River Reservoir in l10ntana is operated under the super-
<br />vision of the Montana State Water Conservation Board which agency furnished
<br />operating data.
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<br /> Contents in Acre-feet
<br /> Bull Lake Pilot Butte Buffalo Bill Tongue River
<br /> Reservoir Reservoir ~ Reservoir
<br />September 30, 1956 102,400 8,300 338,800 20,900
<br />October 31 92,300 3,400 289,700 15,600
<br />November 30 90,200 4,WO 261,100 9,500
<br />December 31 84,900 9,100 232,500 8,900
<br />January 31, 1957 76,000 9,200 203,400 8,WO
<br />February 28 67,800 14,300 187,700 9./ 10,800
<br />March 31 63,300 21,800 176,000 14,&)0
<br />April 30 60 , 200 27,700 157,100 9./ 16,000
<br />May 31 76,<fJQ 27,700 283,400 9./ 31,700
<br />June 30 149,700 26,400 468,500 9./ 42,400
<br />July 31 150,000 13,000 439,200 Eo/ 33,900
<br />August 31 137,100 11,000 381,800 25,200
<br />September 30, 1957 127,500 7,700 359,200 8,300
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<br />~/ Contents based upon sedimentation surveys of October, 1948
<br />~/ Content 'on first day of following month.
<br />E.I Interpolated on basis of weekly readings.
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<br />
<br />17.
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