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Show 222 PROBLEMS OF IMPERIAL VALLEY AND VICINITY. Moiithly discharge of Colorado River at Yuma, Ariz, for years i902-19£Q-Continued. Month. Discharge for year ending Dec. 31,1914. Maximum. Minimum. Mean. Total in acre-feet. Discharge for year ending Dec. 31,1915. Maxi- Mini-mum. Mean. Total in acre-feet. January... February.. March..... April...... May....... June...... July....... August___ September October... November. December. Year 21,500 27,000 27,000 34,600 89,500 137,000 89,000 47,000 19,800 30,300 13,500 49,200 3,300 5,800 11,200 12,000 33,200 89,300 33,800 10,600 5,600 6,700 6,600 5,800 7,520 11,600 15,000 22,900 53,800 110,000 51,500 22,000 9,930 13,700 10,300 13,300 462,000 646,000 923,000 1,360,000 3,310,000 *6,570,000 3,170,000 1,350,000 591,000 842,000 613,000 818,000 30,000 90,000 21,800 47,500 66,200 57,800 57,300 35,200 12,500 10,200 7,900 7,000 5,700 14,800 11,400 21,500 28,600 39,900 15,000 4,700 2,700 3,500 4,000 4,800 9,170 27,100 15,500 30,100 47,800 48,600 30,800 11,100 4,540 7,190 5,980 5,760 564,000 1,510,000 953,000 1,79O,(XX> 2,940,000 2,890,000 1,890,000 682,000- 270,000 442,000 356,000 354,000. 137,000 3,300 28,500 20,700,000 90,000 2,700 20,200 14,600,000- Discharge for year ending Dec. 31,1916. Discharge for year ending Dec. 3*1,1917. Month. Maximum. Mini* mum. Mean. Total in acre-feet. Maximum. Minimum. Mean. Total in acre-feet. January... February.. March..... April...... May....... June...... July....... August__ September October... November. December. Year 240,000 113,000 68,400 59,000 74,800 72,200 65,600 37,300 27,000 68,500 16,800 9,500 3,800 18,300 20,000 27,500 40,300 44,300 20,400 14,800 8,300 6,300 7,800 5,100 45,800 28,400 35,800 35,600 54,700 59,500 36,700 27,200 12,400 26,600 11,900 7,390 2,820,000 1,630,000 2,200,000 2,120,000 3,360,000 3,540,000 2,260,000 1,670,000 738,000 1,640,000 707,000 454,000 20,800 13,500 15,100 69,900 85,500 134,000 143,000 43,500 12,200 8,700 8,200 7,700 5,300 6,400 6,800 8,600 32,700 68,600 34,800 ll?500 6,700 5,600 5,900 6,000 9,140 7,930 9,800 26,300 49,300 89,900 93,900 23,500 9,010 7,600 7,100 6,830 562, ooa 440,000 603,000 1,560,000 3,030,000 5,350,000 5,770,000 1,440,000 536,000 465,000 422,000 420,000 240,000 3,800 31,600 22,940,000 143,000 5,300 28,400 20,600,000 Discharge for year ending Dec. 31,1918. Discharge for year ending Dec. 31,1919. Month. Maximum. Minimum. Mean. Total in acre-feet. Maxi- Mini- Mean. Total in acre-feet. January... February. March..... April...... May...... June...... July...... August__ September October... November, December. Year 7,700 7,000 49,300 17,800 48,800 92,200 94,300 19,600 14,000 14,000 9,200 8,400 4,700 4,900 6,700 9,400 11,100 39,300 16,400 7,000 4,100 5,800 7,300 6,700 6,590 5,810 16,400 12,800 29,100 61,800 43,300 11,600 6,830 7,700 8,060 7,340 405,000 323,000 1,010,000 767,000 1,790,000 3,67P, 000 2,660,000 710,000 406,000 474,000 480,000 451,000 6,200 8,900 24,100 29,000 50,700 57,600 35,600 28,500 8,800 7,300 82,600 46,100 1,800 4,700 5,600 14,600 28,600 20,600 12,000 4,300 2,300 3,700 5,800 5,600 3,760 7,170 8,840 20,600 36,100 34,300 20,200 10,700 5,160 5,290 10,200 15,400 231,000- 398,000 543,000 1,220,000 2,220,000 2,040,000 1,240,000 654,000 307,000 325,000 606,000 944,000 94,300 4,100 18,100 12,150,000 57,600 1,800 14,800 10,740,000 Month. January.. February. March___ April..... May...... June...... July...... Discharge for year ending Dec. 31, 1920. Maximum. 32,500 165,000 53,700 34,000 81,100 190,000 73,000 Mini- 6,800 9,000 10,100 12,900 15,800 73,800 19,300 Mean. 11,400 38,000 18,100 20,400 46,200 129,000 43,000 Total in acre-feet. 701,000 2,190,000 1,110,000 1,210,000 2,840,000 7,690,000 2,650,000 Month. August....... September___ October...... November___ December___ Year.... Discharge for year ending Dec. 31, 1920. Maxi- Minimum, mum. 23,200 13,300 8,000 12,600 9,000 190,000 12,600 5,300 5,800 8,000 5,100 5,100 Mean. 17,600 8,430 6,500 10,400 7,350 Total in acre-feet. 1,080,000 501,000 400,000 619,000 452,000 29,700 i 21,450,000 |