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31 <br /> <br />PLATTE RIVER BASIN <br /> <br />06731000 ST. VRAIN CREEK AT MOUTH, NEAR PLATTEVILLE, CO <br /> <br />LOCATION.--Lat 40°15'29", long 104°52'45", in SE¼NW¼ sec. 3, T,3 N., R.67 W., Weld County, Hydrologic Unit <br />10190005, on right bank 140 ft downstream from bridge on county road, 1,3 mi upstream from mouth, <br />and 4.2 mi northwest of Platteville. <br /> <br />DRAINAGE AREA.--976 mi². <br /> <br />GAGE.--Water-stage recorder with satellite telemetry in a 42-inch metal pipe shelter and well. <br />Supplemental outside chain gage. <br /> <br />REMARKS.--Record is complete and reliable, except for the following day, Jan. 5, 1994 when the chart and <br />the DCP were off. DCP was the primary source of record. The chart was used on Apr. 27-30; May 1- <br />2, 1994 when the DCP was off. The backup chart record was not used Jun. 24-Sep. 30, 1994 since the <br />recorder would not function properly. The DCP record was good for the entire period based on the <br />checks made each time the station was visited. Station maintained and records developed by Merlin <br />Friedrichsen. Record is good. <br /> <br />RATING TABLE.--SVCPLACO23 USED FROM 01-OCT-1993 TO 30-SEP-1994 <br /> <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1993 TO SEPTEMBER 1994 <br />MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 158 160 175 146 127 179 135 247 503 199 198 211 <br /> 2 163 177 175 143 129 175 138 275 671 209 197 212 <br /> 3 165 166 169 144 131 161 141 290 772 221 208 205 <br /> 4 160 165 170 145 138 159 138 275 668 235 225 206 <br /> 5 151 167 166 146 129 154 146 239 633 228 213 179 <br /> 6 157 162 161 147 125 152 147 234 527 220 212 164 <br /> 7 161 162 166 143 127 155 144 241 518 214 203 154 <br /> 8 171 158 163 134 127 158 142 238 397 214 183 151 <br /> 9 163 162 163 134 100 161 147 247 349 220 186 159 <br /> 10 165 164 168 131 137 156 200 324 337 212 194 154 <br /> 11 168 165 176 135 151 156 227 353 310 210 474 153 <br /> 12 171 178 180 132 123 151 194 366 280 208 375 152 <br /> 13 160 186 182 130 133 151 191 433 274 201 309 146 <br /> 14 168 196 177 131 131 146 213 536 231 218 293 154 <br /> 15 162 206 156 128 131 142 200 449 192 221 277 153 <br /> 16 160 201 153 131 128 145 195 372 181 232 251 151 <br /> 17 155 200 150 126 134 145 184 337 176 224 231 147 <br /> 18 290 202 148 122 134 139 181 402 179 211 215 154 <br /> 19 237 207 146 127 131 126 160 396 215 202 209 152 <br /> 20 171 204 147 128 133 118 150 366 239 200 214 155 <br /> 21 158 212 147 125 134 129 143 348 337 205 209 162 <br /> 22 152 213 150 123 137 123 148 299 297 198 192 189 <br /> 23 144 210 153 121 131 116 173 283 378 190 183 159 <br /> 24 143 210 151 122 141 117 188 236 325 200 177 149 <br /> 25 138 206 155 125 143 121 203 204 273 226 176 146 <br /> 26 136 212 148 125 139 118 241 241 261 223 183 137 <br /> 27 143 208 147 126 146 123 239 249 231 217 187 135 <br /> 28 143 204 149 127 150 122 225 221 206 204 180 139 <br /> 29 154 194 148 125 --- 132 251 268 203 200 201 125 <br /> 30 153 180 145 119 --- 138 265 297 200 202 206 121 <br /> 31 154 --- 146 114 --- 133 --- 356 --- 197 202 --- <br /> <br /> TOTAL 5074 5637 4930 4055 3720 4401 5449 9622 10363 6561 6963 4774 <br /> MEAN 164 188 159 131 133 142 182 310 345 212 225 159 <br /> AC-FT 10060 11180 9780 8040 7380 8730 10810 19090 20560 13010 13810 9470 <br /> MAX 290 213 182 147 151 179 265 536 772 235 474 212 <br /> MIN 136 158 145 114 100 116 135 204 176 190 176 121 <br /> <br /> CAL YR 1993 TOTAL 76281 MEAN 209 MAX 1070 MIN 89 AC-FT 151300 <br /> WTR YR 1994 TOTAL 71549 MEAN 196 MAX 772 MIN 100 AC-FT 141900 <br /> <br /> MAX DISCH 799 CFS AT 1400 03-JUN-1994 GH 3.00 FT. SHIFT 0.26 FT. MAX GH 3.00 FT. AT 1400 03-JUN-1994 <br />0 <br />200 <br />400 <br />600 <br />800 <br />OctNovDecJanFebMarAprMayJunJulAugSep <br />