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Last modified
12/12/2014 9:20:15 AM
Creation date
10/6/2014 1:46:07 PM
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Publications and Reports
Title
STREAM FLOW DATA FOR COLORADO
Year
1992
Document Type - Publications and Reports
Streamflow Report
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<br /> <br /> <br />20 <br /> <br /> PLATTE RIVER BASIN <br /> <br /> 06724000 ST VRAIN CREEK AT LYONS, CO <br /> <br />LOCATION.--Lat 40°13'05", long 105°15'34", in NW¼NW¼ sec.20, T.3 N,, R.70 W., Boulder County, Hydrologic Unit 10190005, on <br />left bank 75 ft southwest of U.S. Highway 36 (State Highways 7 and 66) at southeast edge of Lyons, 400 ft <br />upstream from St, Vrain Supply Canal, and 0.4 mi downstream from confluence of North and South St. Vrain Creeks. <br /> <br />DRAINAGE AREA.--212 mi2. <br /> <br />GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,292 ft above National Geodetic Vertical <br />Datum of 1929, from topographic map. Prior to Apr. 6, 1923, non-recording gages near present site at different <br />datums. Apr. 6, 1923, to Sept. 30, 1956, water-stage recorder at same site at datum 1.00 ft, higher. Levels were <br />run to inside gage on May 20, 1991 using BM No. 2 as base. The gage was found to be reading correct. <br /> <br />REMARKS.--Record is complete and reliable. Data collection platform used as primary record. Graphic chart used on Oct. <br />4-7, 10-11, 28-30; Nov. 14, 17; Dec. 12, 1991; Jan 4-6; Mar. 9, 17, 27-30; Apr. 15; May 1; Jun 4-14, 16-17, 19- <br />30; Jul. 1-4, 6-9, 12, 14-16, 21, 28; Aug. 4-5, 8-11, 15-16, 18, 22-23, 27-31; Sep. 1, 18-20, 1992. Record is <br />good. Station maintained and records developed by Fred Renner. <br /> <br />RATING TABLE.--SVCLYOCO20 USED FROM 01-OCT-1991 TO 30-SEP-1992 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 1991 TO SEPTEMBER 1992 <br /> MEAN VALUES <br /> <br />DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 42 20 18 21 17 12 86 159 159 290 82 56 <br /> 2 36 26 22 20 19 11 92 168 137 282 78 67 <br /> 3 30 27 22 20 18 17 73 144 130 230 80 65 <br /> 4 31 27 25 18 17 31 80 124 175 184 115 60 <br /> 5 31 30 26 19 17 36 91 124 266 180 110 62 <br /> 6 29 30 23 18 15 25 98 144 280 198 98 56 <br /> 7 25 31 23 18 15 21 103 186 278 230 96 48 <br /> 8 22 48 26 17 16 27 101 206 290 254 89 42 <br /> 9 21 36 24 15 17 34 104 213 330 266 89 37 <br /> 10 21 40 22 18 17 30 105 227 340 223 93 33 <br /> 11 15 33 25 17 17 37 123 200 385 198 112 32 <br /> 12 15 33 25 19 16 43 125 184 530 188 111 28 <br /> 13 19 31 21 15 16 50 119 163 500 185 107 28 <br /> 14 21 30 19 16 15 52 117 161 494 155 93 26 <br /> 15 23 34 24 13 15 53 115 163 452 153 80 30 <br /> 16 14 34 26 17 17 49 170 177 365 165 72 30 <br /> 17 14 39 20 17 16 50 172 203 290 177 85 30 <br /> 18 14 36 21 15 14 49 179 230 245 161 91 39 <br /> 19 17 34 23 17 15 43 156 270 298 148 82 51 <br /> 20 19 29 25 16 16 39 141 294 345 189 68 48 <br /> 21 17 31 24 11 15 42 125 326 390 181 62 39 <br /> 22 21 27 24 11 15 38 118 381 350 146 68 38 <br /> 23 17 20 23 15 15 36 110 371 365 140 80 32 <br /> 24 21 21 17 13 15 36 101 346 380 125 125 31 <br /> 25 26 25 20 15 15 37 96 348 385 131 142 30 <br /> 26 20 28 20 19 15 43 96 364 390 144 111 33 <br /> 27 24 25 19 17 15 41 91 418 330 126 82 30 <br /> 28 28 26 19 17 14 64 95 324 294 105 66 28 <br /> 29 25 24 24 18 12 78 104 265 310 93 54 26 <br /> 30 18 19 22 18 --- 74 133 216 270 90 53 23 <br /> 31 18 --- 19 18 --- 87 --- 183 --- 86 43 --- <br /> <br />TOTAL 694 894 691 518 456 1285 3419 7282 9753 5423 2717 1178 <br />MEAN 22.4 29.8 22.3 16.7 15.7 41.5 114 235 325 175 87.6 39.3 <br />AC-FT 1380 1770 1370 1030 904 2550 6780 14440 19350 10760 5390 2340 <br />MAX 42 48 26 21 19 87 179 418 530 290 142 67 <br />MIN 14 19 17 11 12 11 73 124 130 86 43 23 <br /> <br />CAL YR 1991 TOTAL 40902.6 MEAN 112 MAX 898 MIN 9.6 AC-FT 81130 <br />WTR YR 1992 TOTAL 34310 MEAN 93.7 MAX 530 MIN 11 AC-FT 68050 <br /> <br />MAX DISCH 548 CFS AT 0645 12-JUN-1992 GH 4.48 FT. SHIFT -0.05 FT. MAX GH 4.48 FT. AT 0645 <br />12-JUN-1992 <br />
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