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• SAN JUAN RIVER BASIN
<br />09361500 ANIMAS RIVER AT DURANGO, COLO.
<br />LOCATION.--Lot 37.16.19", long 107.52'17•', in SN45N4 sec.20, T. 35 N., R.9 N., La Plate County, on left bank at
<br />Ne ste rn Colorado Power Co.'s plant at purango, O.B mi (1.3 km) upstream from Lightner Creek.
<br />DRAINAGE AREA.--692 mil (1,792 km1).
<br />PFA700 OF RECORD.--June to December 1895, peril 1896 co December 1898, April 1899 to December 1900, March to
<br />May 1901, April to November 1902, March t0 April 1903 (gage heights only, erroneously stated as discredited
<br />in NSP 136}), May to October 190}, July 1904 to December 1905, January to December 1910 (gage heights only),
<br />January t0 September 1911, January 1912 to current year. Monthly or yearly discharge only for some periods,
<br />published in MSP 1311.
<br />GAGE.--Hater-stage recorder. Datum o£ gage is 6,501.57 ft (1,981.679 m) above mean sea level. See MSP 1713
<br />or 17 }} for history of changes prior to Mar. 2, 1921.
<br />AYE RAGE DISCHARGE.--69 years (1896-1900, 190/-3, 1910-7/), B/0 ft'/s (77.79 nl/s), 608,600 acre-ft/yr
<br />(730 M1/Yr).
<br />EXTREMES.--[ur rent year: 1laximum discharge, 2,910 ftl/s (82./ ml/s) May 27 (gage height, e.B9 ft or 1./90 m);
<br />maximum gage height /.92 ft (1.500 m) May 17; minimum daily discharge, 113 fts/s (d.09 m1/s) Sept. 12, 13.
<br />Period of record: Maximum discharge, 23,000 ft~/s (708 ms/s) Oct. 5, 1911 (gage height, 11 ft ar l.a m,
<br />present site and datum), from rating curve extended above 13,000 ft1/s (370 m1/s): minimum daily. 9a ft1/s
<br />(2.66 ms/s) Mar. 2, 1917.
<br />Maximum stage since a[ less[ 1885, that of Oct. 5, 1911.
<br />REMAA KS.--Records good. Diversions Eor irrigation of about d,000 acres (16.2 km1) above station. Natural
<br />regulation by many lakes and regulation for poser above station.
<br />REVISIONS (NpTER YEARS).--NSP 761: Drainage area. NSP 929: 1927(H). XSP 1213: 1911, 1918 (m). NSP 156}:
<br />1911-23 (monthly figures only).
<br />•015DNANGL• IN CUmIC fEEI PE4 SECOND. +ATER TEaR OCTOmEN 1977 IO SEPTE NwER 1976
<br />DaY DCT NOV DEC JAN !Etl BAN Am9 NAY Jug JUL aUG $E°
<br />1 ]72 250 206 371 185 371 71i 700 1.720 720 ]BB 115
<br />2 728 270 206 Ibtl 173 IBD 715 800 1.060 655 762 167
<br />] ]l0 227 212 190 377 IB2 ]00 OBO 1.270 619 001 159
<br />0 700 221 200 Itl5 177 IB2 275 1.150 7.270 570 050 157
<br />•5 ]00 221 letl 171 1BU IBS 266 1.180 1•x20 S7B 001 155
<br />6 705 221 115 17) IRO IBS 262 1.200 1.270 482 762 157
<br />i 295 223 lltl 175 IBB 192 270 1.700 1.170 066 726 155
<br />8 290 218 IRS )RB )BO 198 215 1.550 1.020 066 ]OS 151
<br />9 700 212 190 Itl5 IBD 192 280 1.910 900 aa7 ]20 107
<br />]0 710 209 185 Itl0 180 200 ]10 2.120 BBO 422 778 107
<br />11 ]IS 206 IBS IBB IBD 200 ]10 2.270 LOBO 001 715 105
<br />12 710 206 190 ITB 19V 20] 295 2.220 1.710 ]B2 290 107
<br />13 705 20] !92 180 IBS 206 285 2.090 1.520 ]26 210 le}
<br />10 295 207 192 182 IBS 209 210 1.600 1.080 ]20 250 105
<br />15 295 200 IBB Ietl 180 209 266 1•b70 1.620 015 270 361
<br />16 2Y5 ]92 1tl2 lB5 ITS 212 275 2.020 1.020 610 2IB 185
<br />17 290 192 190 IBS 178 2IB 285 Z•000 1•]70 920 198 192
<br />IB 280 190 195 190 175 270 700 1•A70 1.710 790 190 195
<br />19 280 192 195 IBB 175 250 029 2.120 1.280 710 190 195
<br />20 268 195 188 IBB IBD 250 007 1.6/0 1.270 860 IBB 192
<br />21 266 190 190 190 175 258 790 1.770 1.210 828 190 192
<br />22 266 190 198 195 177 258 ]BB 1.710 1.220 602 IBD 192
<br />27 266 392 200 190 17] 262 001 1.000 1.170 506 IBS 200
<br />20 270 192 I9B 190 IBD 258 058 3./00 1.170 510 IB2 200
<br />25 270 198 195 392 185 262 570 I.7J0 1.090 0.70 IB2 208
<br />26 286 209 190 Id2 180 202 810 1.760 1.020 476 185 207
<br />2T 266 200 190 IBB 178 250 970 2.500 960 008 185 20]
<br />28 262 195 195 175 171 258 870 2.770 900 770 IB2 198
<br />29 262 190 190 185 ------ 266 780 2•]20 860 ]56 IB2 390
<br />70 266 200 190 IBB ------ 275 677 2.790 800 772 175 185
<br />J1 266 ------ IBD 192 ------ 295 ------ 2.290 ------ 726 175 ------
<br />TOTAL 8.925 B•17J 5.978 5•)25 Sr012 8.9/2 12.22• 871 ]5D 78.780 ]5.895 7.987 5.275
<br />BEAN 2tle 206 192 Itl5 379 220 001 1.721 1.217 51] 258 175
<br />BAA 772 250 212 195 190 295 970 2.500 1.720 920 050 206
<br />BIN 262 190 115 171 173 371 262 700 800 ]20 175 107
<br />AC-iT l7. 700 12.2x0 11.780 II•J60 9.900 j7. 770 20.250 105.800 72.160 71.570 IS•B00 10.780
<br />Cal YA 1977 TOTAL 471.72] MEAN 1.182 BAZ 7.110 BIN 175 AC-!T 855.500
<br />+TR YA 1970 TOTAL 169.786 BEAM 065 BAA 2.500 BIN 107 AC-!T ]76.800
<br />Li
<br />D'
<br />F
<br />G
<br />A
<br />E
<br />f
<br />.PEAK DISCHARGE (BASE, /,000 CFS).--NO peak above base
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