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28 <br />RIO GRANDE BASIN <br />08223000 RIO GRANDE AT ALAMOSA, CO (1990) <br />LOCATION. - -Lat 37 °28'53 ", long 105 °52'46 ", in SEaNE'a sec. 4. T. 37 N., R. 10 E., Alamosa County, on right <br />bank 0.2 mile northwest of city limits of Alamosa and 9 miles upstream from Alamosa Creek. <br />DRAINAGE AREA.- -1,710 mil. <br />GAGE. -- Water -stage recorder with satellite telemetry in a timber shelter and well. Datum of gage is 7,532.66 <br />ft. <br />RATING TABLE.-- RIOALACO21 USED FROM 01 -OCT -1989 TO 30 -SEP -1990 <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1989 TO SEPTEMBER 1990 <br />MEAN VALUES <br />DAY <br />OCT <br />NOV <br />DEC <br />JAN <br />FEB <br />MAR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />SEP <br />1 <br />48 <br />85 <br />33 <br />115 <br />105 <br />225 <br />52 <br />103 <br />38 <br />181 <br />153 <br />77 <br />2 <br />43 <br />106 <br />51 <br />95 <br />125 <br />225 <br />50 <br />152 <br />74 <br />149 <br />145 <br />66 <br />3 <br />39 <br />65 <br />54 <br />100 <br />120 <br />220 <br />57 <br />527 <br />40 <br />136 <br />146 <br />59 <br />4 <br />34 <br />54 <br />60 <br />110 <br />120 <br />265 <br />53 <br />627 <br />95 <br />122 <br />154 <br />57 <br />5 <br />42 <br />52 <br />86 <br />105 <br />120 <br />245 <br />69 <br />627 <br />305 <br />166 <br />151 <br />67 <br />6 <br />137 <br />49 <br />132 <br />105 <br />125 <br />255 <br />79 <br />685 <br />514 <br />188 <br />126 <br />75 <br />7 <br />50 <br />46 <br />100 <br />100 <br />125 <br />236 <br />72 <br />759 <br />133 <br />258 <br />116 <br />86 <br />8 <br />59 <br />44 <br />100 <br />100 <br />125 <br />227 <br />69 <br />897 <br />119 <br />327 <br />107 <br />80 <br />9 <br />50 <br />40 <br />80 <br />110 <br />125 <br />225 <br />74 <br />1040 <br />179 <br />155 <br />100 <br />54 <br />10 <br />43 <br />38 <br />85 <br />115 <br />140 <br />239 <br />76 <br />663 <br />216 <br />101 <br />77 <br />51 <br />11 <br />39 <br />36 <br />120 <br />125 <br />140 <br />253 <br />71 <br />377 <br />107 <br />237 <br />81 <br />36 <br />12 <br />34 <br />35 <br />90 <br />125 <br />130 <br />257 <br />68 <br />224 <br />269 <br />330 <br />96 <br />28 <br />13 <br />42 <br />33 <br />100 <br />130 <br />130 <br />250 <br />73 <br />112 <br />478 <br />241 <br />109 <br />25 <br />14 <br />47 <br />32 <br />90 <br />125 <br />130 <br />223 <br />72 <br />100 <br />178 <br />253 <br />135 <br />25 <br />15 <br />50 <br />31 <br />95 <br />125 <br />165 <br />202 <br />58 <br />163 <br />124 <br />277 <br />164 <br />25 <br />16 <br />51 <br />30 <br />105 <br />140 <br />165 <br />193 <br />47 <br />165 <br />207 <br />323 <br />179 <br />25 <br />17 <br />52 <br />31 <br />115 <br />130 <br />160 <br />199 <br />39 <br />115 <br />270 <br />272 <br />200 <br />27 <br />18 <br />70 <br />30 <br />110 <br />115 <br />140 <br />207 <br />56 <br />86 <br />262 <br />233 <br />132 <br />29 <br />19 <br />85 <br />26 <br />100 <br />110 <br />150 <br />218 <br />101 <br />115 <br />185 <br />207 <br />134 <br />42 <br />20 <br />93 <br />24 <br />110 <br />110 <br />160 <br />231 <br />101 <br />99 <br />391 <br />176 <br />138 <br />64 <br />21 <br />88 <br />24 <br />110 <br />110 <br />150 <br />239 <br />78 <br />79 <br />349 <br />153 <br />151 <br />91 <br />22 <br />91 <br />22 <br />110 <br />105 <br />160 <br />259 <br />58 <br />108 <br />191 <br />143 <br />174 <br />95 <br />23 <br />98 <br />22 <br />110 <br />105 <br />165 <br />277 <br />86 <br />159 <br />114 <br />151 <br />227 <br />108 <br />24 <br />93 <br />22 <br />120 <br />105 <br />180 <br />303 <br />114 <br />317 <br />65 <br />141 <br />168 <br />98 <br />25 <br />77 <br />22 <br />115 <br />110 <br />190 <br />331 <br />80 <br />580 <br />178 <br />161 <br />137 <br />81 <br />26 <br />68 <br />22 <br />115 <br />110 <br />185 <br />340 <br />64 <br />618 <br />159 <br />228 <br />113 <br />66 <br />27 <br />70 <br />21 <br />120 <br />105 <br />210 <br />206 <br />62 <br />251 <br />195 <br />188 <br />93 <br />52 <br />28 <br />65 <br />28 <br />120 <br />95 <br />240 <br />120 <br />53 <br />108 <br />157 <br />170 <br />76 <br />43 <br />29 <br />56 <br />30 <br />115 <br />110 <br />- -- <br />96 <br />44 <br />187 <br />136 <br />165 <br />76 <br />54 <br />30 <br />55 <br />32 <br />120 <br />105 <br />- -- <br />74 <br />50 <br />319 <br />195 <br />163 <br />64 <br />236 <br />31 <br />78 <br />- -- <br />115 <br />110 <br />- -- <br />68 <br />- -- <br />60 <br />- -- <br />157 <br />75 <br />- -- <br />TOTAL <br />1947 <br />1132 <br />3086 <br />3460 <br />4180 <br />6908 <br />2026 <br />10422 <br />5923 <br />6152 <br />3997 <br />1922 <br />MEAN <br />62.8 <br />37.7 <br />99.5 <br />112 <br />149 <br />223 <br />67.5 <br />336 <br />197 <br />198 <br />129 <br />64.1 <br />AC -FT <br />3860 <br />2250 <br />6120 <br />6860 <br />8290 <br />13700 <br />4020 <br />20670 <br />11750 12200 <br />7930 <br />3810 <br />MAX <br />137 <br />106 <br />132 <br />140 <br />240 <br />340 <br />114 <br />1040 <br />514 <br />330 <br />227 <br />236 <br />MIN <br />34 <br />21 <br />33 <br />95 <br />105 <br />68 <br />39 <br />60 <br />38 <br />101 <br />64 <br />25 <br />CAL YR <br />1989 TOTAL <br />57170.3 <br />MEAN <br />157 <br />MAX <br />966 <br />MIN <br />8.7 AC -FT <br />113400 <br />WTR YR <br />1990 TOTAL <br />51155 <br />MEAN <br />140 <br />MAX <br />1040 <br />MIN <br />21 AC -FT <br />101500 <br />MAX DISCH 1080 CFS AT 2145 <br />09 -MAY <br />-1990 GH <br />4.92 <br />FT. SHIFT <br />-0.24 <br />FT. MAX GH <br />4.92 FT. <br />AT 2145 <br />09 -MAY -1990 <br />1200 <br />1000 <br />800 <br />600 <br />400 <br />200 <br />0 1 i i i i i i i i i" ' <br />Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep <br />