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<br />OOUGG
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<br />UNITED &rATES
<br />DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
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<br />PROVISIONAL RELEASE
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<br />COLORADO RIVER AND TRIBlJrARIES IN J:.O\.,'ER BASIN
<br />March 1968
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<br /> Colorado Colorado Colorado D~,e,s~~~5 ~~:~~er. Colorado D;:~Sions at
<br /> Colorado Paria Little Colorado Virgin River Lake River Havasu River Pa,L~r ar.d Blvt~e River Im rial Dan; Colorado
<br />Date River River Colorado River River Lake Mead below Moha ve belo.... Lake below Colo. R. Palo below All Gila Gila River Pilot
<br />Mar. Lae, Lae, River Grand Little- Usable Hoover Usable Davis Usable Parker Indian Verde Cihola American Gravi ty River below Knob
<br />1968 Ferry Ferry Cameron Canyon field Contents Dam Contents "om Contents Dam Res. Canal Valley Canal Canal Dome y~~ Return
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<br /> d, d, d, d, d, acre-ft d, acre-ft or, acre-ft d, d, d, d, d, d, of, d, . cfs
<br />1 14 ~ 700 37 1,400 11,400 242 14,609,000 13,000 1,646,000 10,700 547,400 9,240 858 1,570 8,560 6,960 1,150 0.90 486 1,230
<br />2 13,700 37 1,320 16,500 209 14,614,000 9,010 1,642,000 10,100 547,400 9,550 874 1,4eo 8,030 6,970 1,080 .90 486 1,230
<br />3 12,700 35 969 15,000 206 14,625,000 7,940 1,642,000 9,480 544,100 9,f:J70 894 1,330 8,090 6,530 928 1.0 487 1,160
<br />4 14,900 34 860 14,500 224 14,630,000 13,900 1,648,000 10,900 539,500 10,100 919 1,310 8,030 6,720 1,190 1.0 478 1,380
<br />5 14,100 33 836 15,500 209 14,631,000 14,500 1,655,000 10,600 538,900 8,760 938 1,290 8,170 6,750 1,310 1.0 458 1,430
<br />6 15,500 33 872 15,600 202 14,629,000 15,000 1,661,000 ll,200 539,500 8,240 938 1,370 8,600 6,780 1,370 1.0 503 1,460
<br />7 16,200 44 902 16,900 199 14,628,000 10,100 1,670,000 11,400 542,700 7,650 950 1,430 7,210 6,440 1,320 .99 512 1,420
<br />8 13,500 53 914 16,500 280 14,631,000 14,900 1,677,000 10,500 548,800 , 6,840 944 1,290 6,470 5,590 953 1.0 486 1,480
<br />9 12,800 73 884 14,600 351 14,644,000 10,700 1,685,000 7,420 559,200 , 4,630 890 1,110 7,080 4,680 814 1.2 537 1,430
<br />10 10,500 50 794 13,800 332 14,657,000 9,leo 1,692,000 7,370 561,500 5,020 886 1,020 5,670 4,520 490 1.2 628 1,450
<br />11 13,100 40 740 11,500 313 14,653,000 15,000 1,699,000 10,000 556,500 7,500 848 917 4,810 4,730 1,040 1.1 917 1,250
<br />12 13,100 35 1,200 14,200 291 14,652,000 15,000 1,707,000 10,200 552,800 9,620 794 924 4,950 4,410 1,2&> .98 949 1,240
<br />'3 ll,40o 30 1,130 14,600 282 14,646,000 15,500 1,714,000 12,200 547,400 11,000 770 1,140 6,610 4,980 1,150 1.1 913 1,120
<br />,4 9,920 31 614 12 , 600 270 14,642,000 14,600 1,714,000 15,100 549,700 9,370 768 1,190 8,040 5,710 1,210 1.1 598 1,540
<br />15 11,400 30 430 10,500 250 14,642,000 14,700 1,715,000 13,200 550,400 ll,800 770 1,170 8,740 6,970 1,200 1.2 597 1,600
<br />16 7,520 28 342 12,200 220 14,645,000 8,120 1,706,000 14,400 545,Boo 13,600 776 1,230 8,820 7,510 997 1.2 577 1,610
<br />17 6,320 23 370 8,170 199 14,657,000 5,700 1,688,000 15,800 544,100 13,500 828 1,190 10,200 7,880 851 1.2 598 1,820
<br />,8 12 , 200 23 445 7,7Bo 202 14,653,000 13,300 1,778,000 17,500 544,000 14,000 844 1,310 11,100 8,540 1,210 1.2 586 2,050
<br />19 13,100 22 465 13,200 183 14,638,000 14,800 1,677,000 16,100 544,500 14,500 852 1,300 11,300 9,090 1,410 1.1 572 2,470
<br />20 1?,3oo 21 668 14,000 170 14,620,000 17,000 1,678,000 15,600 545,000 13,300 848 1,370 11,200 9,410 1,460 1.1 620 2,540
<br />21 15,800 21 680 13,300 156 14,617,000 16,500 1,679,000 16,200 546,100 13,300 842 1,400 11,300 9,650 1,3'('0 1.1 624 2,550
<br />22 14,900 20 566 , 16, Boo 142 14,605,000 18,900 1,682,000 16,500 546,500 13,600 844 1,370 11,000 9,590 1,320 1.1 628 2,510
<br />23 14,600 20 500 15,700 128 14,607 ,000 14,200 1,678,000 17,400 545,400 14,200 844 1,450 11,200 9,480 1,190 1.2 634 2,500
<br />24 1l,300 '9 600 15,000 132 14,615,000 11,900 1,674,000 14,500 546,Boo 14,000 844 1,350 11,800 9,510 1,000 1.2 636 2,510
<br />25 17,300 20 700 11,900 135 14,608,000 16,400 1,676,000 14,700 545,400 13,400 844 1,420 12,000 9,640 1,370 1.3 638 2,510
<br />26 17,100 22 600 18,300 123 14,604,000 18,400 1,683,000 15,000 545,400 12 , 700 844 1,380 11,600 9,860 1,520 1.2 635 2,560
<br />27 20,300 23 600 18,500 123 14,601,000 16, 300 1,688,000 14,700 546,500 12,200 819 1,360 11 , 200 10,300 1,520 1.0 631 2,860
<br />28 19,300 24 500 20,700 123 14,603,000 16,700 1,689,000 16,000'" 547,000 12,200 802 1,370 11,000 10 , 000 1,540 .95 622 2,850
<br />29 18,200 23 600 18,300 123 14,609,000 17,600 1,688,000 17,700. 548, 500 12,900 776 1,330 10,500 10,100 1,380 .98 580 2,850
<br />30 15,300 24 500 18,800 120 14,620,000 13,500 1,681,000 17,500 552,200 12,800 748 1,310 10,800 9,720 1,150 1.0 616 2,930
<br />31 14,800 23 600 17,500 120 14,640,000 10,200 1,669,000 17,200 554,800 13,300 740 1,270 11,200 9,180 1,030 1.0 873 2,870
<br />Mean 13,800 30.7 729 14,640 202 n_ 13,820 _n 13,460 _n 11,060 843 1,289 9,203 7;684 1,1tl7 1.00 616 1,949
<br />Acre- 79,240 472,500 119,800
<br />feet 848 600 1,890 44,830 900 ,200 12,410 n_ 850,000 _n 827, 400 --- 679,900 51,840 565,800 73,000 66 37 ,890
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<br />* Furnished by U. S. Bureau of he2lar.a~ion, based on poverplant records.
<br />Lake M:!ad e'V8poration by mass-transfer method during month was 37,000 acre-feet, equivalent to 4.31 inches.
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<br />H. M. Babcock, District Chief
<br />Water Resources Division
<br />~ucson, Arizona
<br />April 17, 1968
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