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24 PLATTE RIVER BASIN 06727000 BOULDER CREEK NEAR ORODELL, CO I LOCATION.--Lat 40000123", long 105019'49", in NE~S~ sec. 34, T.l N., R.71 W., Boulder County, Hydrologic Unit 10190005, on left bank along State Highway 119, 0.7 mi southwest of old Crodell, 1.1 mi upstream from Fourmile creek, and 2.9 mi southwest of courthouse in Boulder. I DRAINAGE AREA. --102 mi 2. I GAGE.--water-stage recorder with satellite telemetry and shaft encoder in a 6'x6' concrete shelter. The DCP is the primary record with chart recorder as backup. I REMARKS. --Record is complete and reliable except for the following period: Feb. 1-5, 1996 when float was frozen in well. The stage-discharge relation was affected by ice on control Nov. 3-5, 28; Dec. 7-8, 17-18, 22-23, 1995; Jan. 4-9, 17-31; Feb. 1, 11-13, 16, 23-29; Mar. 1-11, 1996. Graphic chart record was used on Apr. 2-11; June 25; July 21, 1996. Record is good, except for periods of no gage-height record and ice affect, which is fair. Station maintained and record developed by Fred Renner. RATrNG TABLE.--BOCOROCOI3 USED FROM 01-0CT-1995 TO 30-SEP-1996 DAY TOTAL MEAN AC-FT MAX MIN OCT 1 2 3 4 5 6 1 8 9 10 11 12 13 14 15 16 11 18 19 20 21 22 23 24 25 26 21 28 29 30 31 34 38 46 31 42 30 26 32 31 35 30 30 31 29 29 28 25 25 33 36 29 38 32 27 25 31 30 25 22 23 27 NOV 31 23 22 22 21 20 18 34 33 37 33 33 28 25 24 23 24 26 23 23 21 21 22 24 22 22 22 11 18 23 741 24.1 1470 31 11 DISCHARGE, IN eFS, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996 MEAN VALUES OEC 30 21 23 22 20 22 23 2. 17 26 23 26 29 20 23 22 21 26 18 2. 26 28 22 28 27 11 21 25 21 22 22 713 23.0 1410 30 11 CAL YR 1995 TOTAL 41252.7 MEAN WTR YR 1996 TOTAL 33729 MEAN MAX DISCH 962 31.0 1910 46 22 JAN 23 23 26 26 23 25 31 27 23 25 13 22 24 26 21 18 2. 28 22 12 15 24 20 21 20 22 19 16 16 2. 20 619 21.9 1350 31 12 FEB 20 21 23 21 29 29 23 22 22 22 21 26 26 27 27 27 20 21 26 28 27 23 2. 23 22 26 27 29 27 715 24.7 1420 29 20 113 MAX 92.2 MAX MAR 928 29.9 1840 39 21 770 MIN 574 HIN APR 28 27 21 27 28 28 24 22 26 24 25 28 26 34 33 3. 27 34 28 32 30 26 39 39 36 33 37 30 3. 34 34 31 36 44 50 50 51 56 66 74 80 83 81 80 74 71 69 71 67 70 68 71 66 103 142 136 110 151 119 91 61 MAY 57 63 63 74 90 107 115 135 169 174 169 191 230 240 252 251 278 307 315 306 218 265 217 318 301 228 193 114 163 150 151 6090 196 12080 318 51 3.9 AC-FT 11 AC-FT 9627 321 19100 514 119 JON JUL AOG 114 103 96 98 96 75 64 68 79 17 76 71 66 64 82 79 79 81 89 98 100 100 95 86 77 65 10 80 72 70 61 2537 81.8 5030 114 61 I I SEP I 2328 77 .6 4620 151 36 FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. 138 119 122 131 147 155 152 160 169 164 156 222 216 219 533 553 526 495 471 465 496 574 488 431 410 373 392 384 351 349 348 330 298 294 298 311 326 303 272 256 249 241 223 220 212 192 193 198 185 180 173 163 156 134 124 118 118 111 124 125 125 6606 213 13100 348 111 58 57 52 45 48 66 70 58 33 36 37 41 51 57 66 56 50 67 84 60 60 50 54 67 78 86 89 18 75 14 I I I I I I 81820 66900 1803 60.1 3580 89 33 I I 626 eFS AT 0500 22-JON-1996 GH 3.55 FT. SHIFT -0.01 FT. MAX GH 3.55 FT. AT 0500 22-JUN-1996 600 500 400 300 200 100 o Oct Nov Dee Jan Feb Mar Apr May Jun Ju1 Aug Sep I I I I