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<br />,,<-4 <br /> <br />c..TJ <br /> <br />CYi RIO GRANDE NEAR DEI, NORTE, COLO. <br />\ :) . . <br />,LOCATION ~Water-stage r'ecorder, lat. 37 degrees 41 min., long. 106 degrees 28 min" <br />. -". near east line of sec. 30, T. 40 N., R. 5 E., 5 miles upstream from Pinos Creek and 6 <br />~-miles west of Del Norte, Zero of gage is 7,982.21 feet above mean sea level (general <br />adjustment of 1929), . . <br /> <br />DRAINAGE AREA -1,320 square miles. <br /> <br />'RECORDS 'AvAILABLE --'- July 1889 to November 1906 (at site 4 miles downstream), <br />April 1908 to September 1913, and October 1933 to December 1941, in reports of Geo- <br />10gical'Survey. July 1889 to December 1906 and April 1908 to December 1941 in re- <br />ports of State Engineer. January 1941 to December 1941 in report of Rio Grande <br />Compact Commission, May to September 1907 (at site 4 miles downstream), unpub- <br />. lished in files of office of State Engineer, . . <br /> <br /><i:XTREMES - Maximum discharge during year, 7,960 second-feet June 20 (gage height, <br />5.56 feet); minimum daily discharge, 140 second-feet Jan. 3. . <br />1889-1941: Maximum discharge, about 18,000 second-feet. Oct. 5, 1911 (gage height, 6.80 <br />feet), from rating curve extended above 6,000 second-feet; minimum daily discharge <br />.90 second-feet Dec. 3, 1934, <br /> <br />REMARKS _ Records excellent except those for periods of ice effect, Jan, 1 to Apr. 4, <br />Dee, 23 to 31, which were computed on the basis of nine discharge measurements <br />and weather records and are good, Small diversions above station for irrigation. Flow <br />regulated by three main reservoirs (total capacity,' 117,600 acre-feet) and several <br />smaller ones. <br /> <br />Day <br />1 <br />2 <br />3 <br />.4 <br />5 <br />6 <br />7 <br />.8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />28 <br />29 <br />30 <br />31 <br /> <br />Jan. <br />185 <br />174 <br />140 <br />150 <br />150 <br />155 <br />160 <br />160 <br />160 <br />165 <br />170 <br />170 <br />175 <br />170 <br />160 <br />145 <br />150. <br />150 <br />150 <br />155 <br />155 <br />160 <br />155 <br />150 <br />150 <br />155 <br />155 <br />155 <br />160 <br />165 <br />160 <br /> <br />Feb. <br />155 <br />150 <br />145 <br />148 <br />150 <br />150 <br />150 <br />152 <br />154 <br />156 <br />160 <br />165 <br />165 <br />168 <br />168 <br />170 <br />165 <br />162 <br />163 <br />160 <br />165 <br />165 <br />162 <br />165 <br />168 <br />165 <br />165 <br />168 <br /> <br />Discharge, in second-feet, calendar year 1941 <br /> <br />Mar. Apr. <br />172 338 <br />178 331 <br />175 340 <br />175 338 <br />180 380 <br />180 326 <br />185 308 <br />190 308 <br />185 332 <br />180 386 <br />175 356 <br />170 362 <br />170 368 <br />180 356 <br />190 380 <br />210 404 <br />240 410 <br />260 380 <br />280 350 <br />300 344 <br />315 374 <br />295 368 <br />295 362 <br />280 362 <br />250 398 <br />225 446 <br />210 540 <br />215 706 <br />218 938 <br />222 1,180 <br />234 <br /> <br />May <br />1,280 <br />1.290 <br />1,590 <br />1,520 <br />1,460 <br />1,980 <br />2.370 <br />2,410 <br />2,640 <br />3,020 <br />3,580 <br />4,320 <br />5,600 <br />5,810 <br />5,170 <br />4,520 <br />4,630 <br />4,980 <br />4,820 <br />4,280 <br />4,180 <br />4,490 <br />4,430 <br />4,560 <br />4,960 <br />5,240 <br />4,960 <br />4,820 <br />4,490 <br />4,220 <br />4,010 <br /> <br />June <br />4,110 <br />4,110 <br />3,860 <br />3,780 <br />3,700 <br />3,620 <br />3,950 <br />4,410 <br />3,900 <br />3,480 <br />3,290 <br />3,190 <br />3,190 <br />3,380 <br />3,680 <br />4,070 <br />5,030 <br />6,380 <br />7,590 <br />7,620 <br />7,360 <br />7,280 <br />7,360 <br />7,510 <br />7,050 <br />6,670 <br />6,280 <br />6,060 <br />5,440 <br />4,760 <br /> <br />July <br />4,110 <br />3,990 <br />3,970 <br />4,010 <br />4,710 <br />4,240 <br />3,BOO <br />3.680 <br />3,290 <br />3,250 <br />3.250 <br />3,340 <br />3,290 <br />2,970 <br />2,550 <br />2.260 <br />2,260 <br />2.520 <br />2,430 <br />2,570 <br />2,370 <br />2,140 <br />2,030 <br />2,100 <br />2,100 <br />2,050 <br />1,940 <br />1,890 <br />1,770 <br />1,770 <br />1.740 <br /> <br />Aug. <br />1,810 <br />1,690 <br />1,660 <br />1,530 <br />1,450 <br />1,630 <br />1,830 <br />2.080 <br />2,030 <br />1,980 <br />1,890 <br />1,740 <br />1,620 <br />1.490 <br />1,690 <br />1,590 <br />1,600 <br />1,630 <br />1,530 <br />1,390 <br />1,340 <br />1,210 <br />1,120 <br />960 <br />894 <br />949 <br />927 <br />894 <br />905 <br />883 <br />861 <br /> <br />Sept. <br />834 <br />826 <br />762 <br />682 <br />650 <br />642 <br />666 <br />698 <br />650 <br />596 <br />554 <br />470 <br />440 <br />642 <br />596 <br />519 <br />505 <br />554 <br />690 <br />810 <br />1,220 <br />834 <br />1,210 <br />894 <br />746 <br />666 <br />610 <br />568 <br />666 <br />834 <br /> <br />Oct. <br />706 <br />650 <br />938 <br />1,160 <br />982 <br />905 <br />802 <br />802 <br />770 <br />730 <br />722 <br />714 <br />1,360 <br />2,050 <br />1,560 <br />1,410 <br />1,300 <br />1,210 <br />1,170 <br />1,190 <br />1,360 <br />1,550 <br />1,450 <br />1,390 <br />1,530 <br />1,550 <br />1.420 <br />1,430 <br />1,370 <br />1,270 <br />1.180 <br /> <br />Nov~ <br />1.140 <br />1.140 <br />1,070 <br />1,030 <br />9113 <br />960 <br />894 <br />826 <br />872 <br />834 <br />786 <br />754 <br />786 <br />730 <br />722 <br />706 <br />722 <br />722 <br />658 <br />596 <br />533 <br />512 <br />422 <br />440 <br />526 <br />526 <br />477 <br />440 <br />416 <br />386 <br /> <br />Dec. <br />356 <br />280 <br />270 <br />280 <br />225 <br />186 <br />235 <br />260 <br />220 <br />220 <br />240 <br />178 <br />200 <br />178 <br />166 <br />178 <br />178 <br />170 <br />154 <br />147 <br />154 <br />166 <br />162 <br />150 <br />152 <br />142 <br />145 <br />149 <br />156 <br />162 <br />167 <br /> <br />Second- <br />Month foot-days <br /> <br />January .mm~n....n.nm.~_mm'nn.m'mm~mnm.mn 4,914 <br />February nn.mnnnm.m._nnnm~m.nnnnmnmn,m' 4,479 <br />March mn.mn'm_.~n.mmmnmooo__nnmnmnmnm_ 6,734 <br />April .ooon~nnooon.m'm.m.mnm_n.mooo.ooo.~mnm___nn 12,771 <br />May nmn.nooonmnm.nooo.m__nmnn_mm____~ooo____mn117 ,630 <br />June .ooo_____~nn n.mm..nnnooonoooooonnnm num m_uooo.152,110 <br />July n__umn~:.ooo~nmooo___nnn.n.~m._n~'m_n.umnnn 88,390 <br />AUgust .mm_~~m._mnnmm_mn.'m.m___u___n~_umnn 44,803 <br />September .nmnnmmn.ooouooo.u...ooom__..umunn.. 21,034 <br />October .n__.m_un.ooo.umnm.n~m____'nooo'm__...u.n~. 36,631 <br />November ooomooom~u..~n.nm'.ooomm_____n,m__mooon 21,619 <br />December ooomm'n~__muooom.__n__n.m..u__m..m.nn 6,026 <br /> <br />y ear oooumoooooou.nooo..__nooo..mmm.n~...n___m.517,141 <br /> <br /> Run-off in <br />Maximum Minimum Mean acre-feet <br />185 140 159 9,750 <br />170 145 160 8,880 <br />315 170 217 13,360 <br />1,180 308 426 25,330 <br />5,810 1,280 3,795 233,300 <br />7,620 3.190 5,070 301,700 <br />4,710 1,740 2,851 175,300 <br />2.080 861 1,445 88.870 <br />1,220 440 701 41,720 <br />2,050 650 1,182 72,660 <br />1,140 386 721 42,880 <br />356 142 194 11,950 <br /> <br />7,620 <br /> <br />140 <br /> <br />1,417 <br /> <br />1,025,700 <br />