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2 <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 and satellite monitoring (DCP and shafte encoder) at a 25-foot concrete <br />Parshall flume with a wooden shelter and concrete well with inside electric tape gage and in-flume <br />staff gage. Gage is operated and equipment is maintained by the city of Aurora. <br /> <br />REMARKS.--Record is taken from hourly satellite readings and is complete except for November 24, 2003 to <br />March 25, 2004 when the station was closed for the winter. There was possible ice-effect during <br />November 12-20. Satellite daily gage heights agree with chart data to ±0.03 ft. Encoder calibration <br />was checked with 53 visits while the gage was open. The record is good, except for November 12—20 <br />which is fair due to possible ice effect, and November 21-- March 25, which is estimated, and poor. <br />Record developed by Garver Brown. <br /> <br />RATING TABLE.--STD25FTPF USED FROM 01-OCT-2003 TO 30-SEP-2004 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 34 25 20 10 5 5 38 63 96 208 78 33 <br /> 2 35 28 20 10 5 5 38 70 90 191 71 30 <br /> 3 44 32 20 10 5 5 42 65 101 174 68 26 <br /> 4 58 29 20 10 5 5 42 57 114 154 59 23 <br /> 5 58 23 20 10 5 5 49 53 133 136 62 23 <br /> 6 56 24 20 10 5 5 55 52 156 122 83 25 <br /> 7 49 28 20 10 5 5 57 56 181 113 72 27 <br /> 8 46 35 20 5 5 5 65 63 196 108 74 24 <br /> 9 43 27 20 5 5 5 84 74 203 102 66 23 <br /> 10 41 33 20 5 5 5 83 85 219 100 59 22 <br /> 11 39 29 20 5 5 5 79 101 272 101 51 22 <br /> 12 39 24 20 5 5 5 77 117 252 95 45 22 <br /> 13 38 32 20 5 5 5 69 116 228 89 41 21 <br /> 14 34 31 20 5 5 5 63 104 216 84 35 19 <br /> 15 35 26 20 5 5 5 58 79 227 100 32 19 <br /> 16 33 23 20 5 5 5 52 69 245 105 37 19 <br /> 17 34 23 10 5 5 5 47 63 246 170 36 18 <br /> 18 33 25 10 5 5 10 44 64 239 246 37 16 <br /> 19 32 23 10 5 5 10 40 68 238 292 71 16 <br /> 20 32 22 10 5 5 10 38 95 208 289 87 18 <br /> 21 32 20 10 5 5 10 37 127 203 257 91 22 <br /> 22 32 20 10 5 5 50 39 143 197 217 85 54 <br /> 23 31 20 10 5 5 50 41 137 168 201 80 56 <br /> 24 30 20 10 5 5 50 51 124 163 188 70 51 <br /> 25 29 20 10 5 5 55 59 119 156 186 61 44 <br /> 26 27 20 10 5 5 54 62 117 168 158 53 46 <br /> 27 30 20 10 5 5 50 58 110 173 142 46 42 <br /> 28 33 20 10 5 5 40 55 111 184 124 46 40 <br /> 29 32 20 10 5 5 37 51 119 186 111 43 37 <br /> 30 30 20 10 5 --- 38 53 123 200 94 38 37 <br /> 31 26 --- 10 5 --- 39 --- 107 --- 86 36 --- <br /> <br />TOTAL 1145 742 470 190 145 588 1626 2851 5658 4743 1813 875 <br />MEAN 37 25 15 6.1 5 19 54 92 189 153 59 29 <br />AC-FT 2270 1470 932 377 288 1170 3230 5650 11220 9410 3600 1740 <br />MAX 58 35 20 10 5 55 84 143 272 292 91 56 <br />MIN 26 20 10 5 5 5 37 52 90 84 32 16 <br /> <br />WTR YR 2004 TOTAL 20846 MEAN 57 MAX 292 MIN 5 AC-FT 41350 <br /> <br />MAX DISCH: 312 CFS AT 12:30 ON Jul. 19, 2004 GH 2.08 FT. SHIFT 0.03 FT. <br />MAX GH: 2.08 FT. AT 12:30 ON Jul. 19, 2004 <br /> <br />FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br />0 <br />100 <br />200 <br />300 <br />400 <br />Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep <br /> <br />