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4 <br /> <br />PLATTE RIVER BASIN <br /> <br />06696000 SOUTH PLATTE RIVER(below Elevenmile Reservoir) NEAR LAKE GEORGE, CO <br /> <br />LOCATION.--Lat 38°54'18", long 105°29'24". in SW¼ sec. 20, T.13 S., R.72 W., Park County, Hydrologic Unit <br />10190001, on left bank 700 ft downstream from Elevenmile Canyon Reservoir and 8.2 mi southwest of <br />town of Lake George. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--963 mi². October 1929 to current year. Monthly data only for some <br />periods. <br /> <br />GAGE.--Water-stage recorder and satellite monitoring in a wooden shelter at a 15' Parshall flume with <br />outside staff gage. Elevation of gage is 8,458 ft from topographic map. Station is owned and <br />maintained by the Denver Water Dept. <br /> <br />REMARKS.--Record is good except for the period Dec. 4-7, 1997 when both floats were frozen in place and <br />Dec. 8-9, 1997 when the shaft encoder and pen weren’t within ± .02. However without more <br />information there was no way to determine which device needed corrected. This whole period is rated <br />fair. Record developed by Robert Cooper. <br /> <br />RATING TABLE.--PLAGEOCO04 USED FROM 01-OCT-1997 TO 30-SEP-1998 <br /> <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 100 61 87 94 71 69 98 61 37 43 128 289 <br /> 2 101 61 90 94 70 68 99 58 35 45 119 294 <br /> 3 99 61 93 92 71 69 97 58 31 57 108 347 <br /> 4 111 61 94 92 74 72 98 56 31 72 104 351 <br /> 5 113 62 94 92 77 74 99 56 30 89 96 330 <br /> 6 119 62 95 92 80 78 99 54 32 108 87 305 <br /> 7 155 44 95 89 82 80 101 53 34 117 79 289 <br /> 8 175 30 96 86 83 83 104 51 34 128 72 311 <br /> 9 164 30 97 83 84 85 104 53 32 147 70 324 <br /> 10 161 30 98 82 83 86 103 52 31 184 76 324 <br /> 11 162 30 99 80 81 87 102 52 31 222 81 323 <br /> 12 170 31 101 78 79 94 99 48 31 245 81 323 <br /> 13 180 33 101 76 78 88 96 47 34 253 82 323 <br /> 14 210 35 101 75 77 88 93 46 35 258 96 324 <br /> 15 240 40 100 74 76 89 94 46 37 240 110 324 <br /> 16 257 43 100 74 76 90 100 51 40 227 122 323 <br /> 17 258 47 100 73 76 92 95 41 44 206 133 323 <br /> 18 243 52 100 73 78 100 92 39 44 188 144 290 <br /> 19 232 57 100 72 78 106 85 39 42 179 154 236 <br /> 20 225 58 100 72 77 104 80 38 40 176 157 217 <br /> 21 205 53 100 71 76 102 78 39 39 182 161 217 <br /> 22 192 51 99 70 75 101 76 36 40 197 163 193 <br /> 23 192 56 99 70 74 107 73 37 41 218 164 108 <br /> 24 192 52 97 69 73 124 71 37 46 228 168 89 <br /> 25 169 53 97 69 74 131 68 37 47 213 177 89 <br /> 26 125 58 96 69 71 130 68 38 50 197 182 89 <br /> 27 76 63 95 69 70 124 66 39 48 170 187 89 <br /> 28 60 78 92 68 69 117 65 38 46 150 209 89 <br /> 29 60 82 77 68 --- 112 64 38 45 144 239 89 <br /> 30 60 84 91 68 --- 105 62 39 42 132 228 89 <br /> 31 61 --- 95 71 --- 103 --- 35 --- 138 265 --- <br /> <br /> TOTAL 4867 1558 2979 2405 2133 2958 2629 1412 1149 5153 4242 7311 <br /> MEAN 157 51.9 96.1 77.6 76.2 95.4 87.6 45.5 38.3 166 137 244 <br /> AC-FT 9650 3090 5910 4770 4230 5870 5210 2800 2280 10220 8410 14500 <br /> MAX 258 84 101 94 84 131 104 61 50 258 265 351 <br /> MIN 60 30 77 68 69 68 62 35 30 43 70 89 <br /> <br /> CAL YR 1997 TOTAL 51855 MEAN 142 MAX 391 MIN 30 AC-FT 102900 <br /> WTR YR 1998 TOTAL 38796 MEAN 106 MAX 351 MIN 30 AC-FT 76950 <br /> <br /> MAX DISCH 387 CFS AT 1100 03-SEP-1998 GH 3.26 FT. SHIFT 0.02 FT. MAX GH 3.26 FT. AT 1100 03-SEP-1998 <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 />OctNovDecJanFebMarAprMayJunJulAugSep