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<br />, .'1 <br /> <br />CoJ <br />'I' <br />(7) <br />J) RIO GRANDE NEAR LOBATOS, COl~O. <br />~j LOCATION-Water-stage recorder, lat. 37 deg. 5 min., long. 105 deg. 45 min., in sec. 22, <br />,~, T. 33 N.., R. 11 E., 6 miles north of Colorado-New Mexico State line, 7 miles' down- <br />._.:.' stream from Culebra Creek, and 10 miles east of Lobatos. Zero of gage is 7,426.79 <br />feet above mean sea level (general adjustment of 1929), <br />DRAINAGE AREA - 7,700 square miles (includes 2,940 square miles in closed basin). <br />RECORDS AVAILABLE - June 1899 to September 1913 and October 1933 to December <br />1941 in reports of Geological Survey, June 1899 to December 1941 in reports of State <br />Engineer. January 1941 to December 1941 in report of Rio Grande Compact <br />Commission. <br />EXTREMES - Maximum discharge during year, 8,090 second-feet May 16 (gage height <br />6.83 feet); minimum daily discharge, 93 second-feet Sept. 10, 11. <br />1899-1941: Maximum daily discharge 13,100 second-feet (estimated) June 8, 1905; <br />minimum daily discharge, 6 second-feet July 19, 20, 22, Aug, 3. 4, '1934. <br />REMARKS - Records excellent except those for periods of ice effect, Jan. 1 to March <br />16 and Dec. 19 to 31, which are computed on basis of eleven discharge measurements <br />and weather records and are good. Diversions above station for irrigation. Flow <br />regulated by reservoirs on headwaters. <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 /> <br />230 <br />230 <br />210 <br />200 <br />195 <br />200 <br />200 <br />205 <br />205 <br />215 <br />220 <br />225 <br />230 <br />230 <br />225 <br />220 <br />205 <br />200 <br />195 <br />200 <br />205 <br />210 <br />210 <br />220 <br />215 <br />205 <br />205 <br />200 <br />205 <br />205 <br />210 <br /> <br />Feb. <br />220 <br />210 <br />205 <br />200 <br />200 <br />195 <br />200 <br />205 <br />205 <br />210 <br />215 <br />220 <br />220 <br />220 <br />220 <br />225 <br />225 <br />225 <br />240 <br />250 <br />260 <br />270 <br />280 <br />300 <br />310 <br />315 <br />310 <br />305 <br /> <br />Discharge, in secOllld-feet, calendar year 1941 <br /> <br />Mar. <br />305 <br />315 <br />340 <br />360 <br />410 <br />420 <br />400 <br />380 <br />370 <br />350 <br />340 <br />340 <br />360 <br />410 <br />450 <br />460 <br />522 <br />588 <br />619 <br />674 <br />690 <br />698 <br />698 <br />730 <br />730 <br />755 <br />755 <br />730 <br />674 <br />611 <br />573 <br /> <br />Apr. <br />537 <br />501 <br />447 <br />440 <br />421 <br />389 <br />364 <br />324 <br />302 <br />302 <br />313 <br />313 <br />308 <br />308 <br />282 <br />276 <br />266 <br />232 <br />237 <br />266 <br /> <br />252 <br />247 <br />252 <br />247 <br />237 <br /> <br />242 <br />237 <br />237 <br />292 <br />359 <br /> <br />May June <br />460 4,390 <br />682 4,100 <br />928 3,960 <br />1,190 4,010 <br />1,390 3,880 <br />1,520 3,610 <br />1,840 3,270 <br />2,310 3.480 <br />2,820 4,200 <br />3,480 4,390 <br />3.930 4,090 <br />4,540 3,560 <br />5,440 3,160 <br />6,360 2,790 <br />7,430 . 2,580 <br />7,890 2,620 <br />7,600 2,610 <br />6,610 2,850 <br />6,140 3,300 <br />6,300 3,960 <br />5,600 4,810 <br />4,540 5,420 <br />4,010 6,150 <br />3,940 . 6,420 <br />4,220 6,480 <br />4,540 6,610 <br />5,030 7,180 <br />5,540 7,180 <br />5,960 6,810 <br />5,610 6,240 <br />4,960 <br /> <br />Second- <br />Month foot-days <br /> <br />January u...Uhu'mhUUUUUUU~ ...U.......uh mm~... 6,530 <br />February u.....mmuh...........uu.u..u.....mh.....uh 6,660 <br />March .........'h..'......mu.."..uuu...u......'~.muuum 16,057 <br />April ..h.....m...m.~~.~h.m.muhmuuu..m'.......U.....u 9,430 <br />May ...h..mm.h......'Umm.._...Uu. U"" uu hh ~..mu. u 132 ,810 <br />June ......m',,""''''''''''U ~",""mum" ,~. .._..h..'~~...m134,110 <br />July mu....h'..mu...uh'.......UU..~'.....u..m........u.m 62,220 <br />August ..............U.h.UUU'U....uuuu~mmmuumU.' 5,233 <br />September .......m.u.u...........,...,.....h.............u.. 5,056 <br />October ....h'hm~h....U...........u....m_".....h'~..m..u 43,431 <br />November ...h.mu.....h~...........uU_~h.._UU'.....~.... 35,978 <br />December ..~h.....uU'h.....u..m..uu~u.~~.._hU.~hUU. 23,641 <br /> <br />y ear ....h....m~_.....m..m....mm........u~.~..mu481,156 <br /> <br />July <br />5,650 <br />4,910 <br />3,940 <br />3,150 <br />2,940 <br />3,210 <br />3,580 <br />3,720 <br />3,260 <br />2,750 <br />2,140 <br />1.970 <br />1.980 <br />2;050 <br />1,970 <br />1,800 <br />1,580 <br />1,370 <br />1,250 <br />1,130 <br />1,180 <br />1,120 <br />1,040 <br />901 <br />780 <br />682 <br />580 <br />494 <br />421 <br />364 <br />308 <br /> <br />Aug. <br />247 <br />209 <br />186 <br />159 <br />123 <br />110 <br />130 <br />116 <br />143 <br />130 <br />213 <br />223 <br />204 <br />172 <br />155 <br />151 <br />177 <br />223 <br />209 <br />177 <br />190 <br />186 <br />200 <br />186 <br />168 <br />151 <br />138 <br />138 <br />138 <br />138 <br />143 <br /> <br />Maximum <br /> <br />230 <br />315 <br />755 <br />537 <br />7,890 <br />7,180 <br />5,650 <br />247 <br />414 <br />1,950 <br />1,830 <br />964 <br /> <br />7,890 <br /> <br />Sept. <br />143 <br />134 <br />134 <br />127 <br />123 <br />120 <br />116 <br />110 <br />96 <br />93 <br />93 <br />96 <br />106 <br />120 <br />127 <br />123 <br />127 <br />138 <br />116 <br />113 <br />130 <br />120 <br />218 <br />266 <br />313 <br />414 <br />353 <br />282 <br />287 <br />318 <br /> <br />Minimum <br /> <br />195 <br />195 <br />305 <br />232 <br />460 <br />2,580 <br />308 <br />110 <br />93 <br />440 <br />788 <br />460 <br /> <br />93 <br /> <br />Oct. <br />440 <br />658 <br />690 <br />746 <br />919 <br />1,110 <br />1,120 <br />1,090 <br />1,040 <br />991 <br />955 <br />910 <br />892 <br />1,000 <br />1,510 <br />1,910 <br />1,920 <br />1,850 <br />1,780 <br />1,700 <br />1.6'10 <br />1,630 <br />1,720 <br />1,850 <br />1,900 <br />1,890 <br />1,910 <br />1,950 <br />1,920 <br />1,900 <br />1,890 <br /> <br />Nov. <br /> <br />1,830 <br />1,750 <br />1,690 <br />1,660 <br />1,600 <br />1,530 <br />1,470 <br />1,390 <br />1,330 <br />1,270 <br />1,280 <br />1,270 <br />1,220 <br />1.160 <br />1,150 <br />1,090 <br />1,050 <br />1,040 <br />1,010 <br />973 <br />946 <br />946 <br />857 <br />788 <br />857 <br />901 <br />937 <br />991 <br />1,010 <br />982 <br /> <br />Dee <br />964 <br />937 <br />937 <br />937 <br />955 <br />928 <br />892 <br />848 <br />822 <br />866 <br />831 <br />822 <br />805 <br />840 <br />788 <br />780 <br />797 <br />772 <br />740 <br />730 <br />720 <br />730 <br />730 <br />700 <br />670 <br />640 <br />560 <br />510 <br />470 <br />460 <br />460 <br /> <br />,. <br /> <br />Run-off in <br />Mean acre-feet <br /> <br />211 12,950 <br />238 13,210 <br />518 31,850 <br />314 18,700 <br />4,284 263,400 <br />4,470 266,000 <br />2,007 123,400 <br />169 10,380 <br />169 10,030 <br />1,401 86,140 <br />1,199 71,360 <br />763 46,890 <br /> <br />1,318 <br /> <br />954,31Q <br />