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<br /> <br /> <br /> 2 <br /> <br /> PLATTE RIVER BASIN <br /> <br /> 06694920 SOUTH PLATTE RIVER ABOVE SPINNEY MOUNTAIN RESERVOIR, CO <br /> <br />LOCATION.--Lat 38°59'10", long 105°40'52". <br /> <br />DRAINAGE AREA.--N/A <br /> <br />GAGE.--Graphic water-stage recorder with satellite telemetry in a wooden shelter at a 25' Parshall flume. Station and <br />satellite telemetry are owned and maintained by the City of Aurora. <br /> <br />REMARKS.--Hourly record from satellite data base is complete and reliable except for the winter period--Nov.4,1990 to <br />Apr.18, 1991--when the flume was frozen and the recorders turned off. Discharges for the winter period were <br />based on City of Aurora estimates of flow into Spinney Res. These figures were based on reservoir readings taken <br />to the nearest 0.1 ft, and show step-wise rather than continuous changes. Record is good, except for winter <br />period, which is poor. Record is developed by Robert E. Cooper. <br /> <br />RATING TABLE.--PLASPICO01 USED FROM 01-OCT-1990 TO 17-APR-1991 <br />RATING TABLE.--PLASPICO02 USED FROM 18-APR-1991 TO 30-SEP-1991 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991 <br /> MEAN VALUES <br /> <br />DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 68 61 30 20 10 10 50 32 205 169 115 74 <br /> 2 59 62 30 20 10 10 50 33 251 155 105 58 <br /> 3 60 52 30 15 10 10 50 33 230 149 111 54 <br /> 4 55 50 30 15 10 15 50 35 196 160 233 51 <br /> 5 56 50 30 15 10 15 60 34 178 154 239 50 <br /> 6 55 50 30 15 10 15 70 32 197 146 200 44 <br /> 7 55 50 30 15 10 15 70 34 269 135 197 45 <br /> 8 68 45 30 15 10 20 80 34 280 151 147 43 <br /> 9 64 45 30 15 10 20 80 37 266 161 144 39 <br /> 10 55 45 30 15 10 20 80 41 257 163 119 40 <br /> 11 52 30 30 15 10 20 70 43 267 171 93 47 <br /> 12 52 30 30 15 10 24 60 46 314 177 88 45 <br /> 13 48 30 30 15 10 24 60 47 370 162 128 53 <br /> 14 46 30 30 15 10 24 60 49 378 156 162 54 <br /> 15 43 40 30 15 10 24 40 57 368 145 121 47 <br /> 16 43 50 30 10 10 24 40 74 370 124 88 48 <br /> 17 44 50 30 10 10 28 50 70 362 109 79 49 <br /> 18 40 50 30 10 10 28 51 60 321 108 74 47 <br /> 19 44 40 30 10 10 28 43 75 271 108 72 45 <br /> 20 51 40 30 10 10 28 41 109 248 104 73 43 <br /> 21 53 40 30 10 10 28 42 127 242 113 66 40 <br /> 22 54 40 30 10 10 28 42 136 276 203 57 37 <br /> 23 69 40 30 10 10 32 49 169 284 298 51 32 <br /> 24 63 40 30 10 10 32 83 207 266 273 55 29 <br /> 25 56 40 30 10 10 32 82 195 223 303 52 29 <br /> 26 52 45 20 10 10 32 64 181 208 207 51 28 <br /> 27 49 45 20 10 10 50 50 180 183 209 48 27 <br /> 28 47 45 20 10 10 50 36 196 158 217 53 28 <br /> 29 44 45 20 10 --- 50 33 195 169 162 53 28 <br /> 30 42 45 20 10 --- 50 35 202 170 123 67 30 <br /> 31 42 --- 20 10 --- 50 --- 201 --- 113 73 --- <br /> <br />TOTAL 1629 1325 870 395 280 836 1671 2964 7777 5128 3214 1284 <br />MEAN 52.5 44.2 28.1 12.7 10.0 27.0 55.7 95.6 259 165 104 42.8 <br />AC-FT 3230 2630 1730 783 555 1660 3310 5880 15430 10170 6370 2550 <br />MAX 69 62 30 20 10 50 83 207 378 303 239 74 <br />MIN 40 30 20 10 10 10 33 32 158 104 48 27 <br /> <br />CAL YR 1990 TOTAL 31740 MEAN 87.0 MAX 544 MIN 19 AC-FT 62960 <br />WTR YR 1991 TOTAL 27373 MEAN 75.0 MAX 378 MIN 10 AC-FT 54290 <br /> <br />MAX DISCH 405 CFS AT 1630 14-JUN-1991 GH 2.49 FT. SHIFT -0.01 FT. MAX GH 2.49 FT. AT 1630 <br />14-JUN-1991