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10 <br /> <br />PLATTE RIVER BASIN <br /> <br />06709610 SOUTH PLATTE RIVER BELOW CHATFIELD RESERVOIR, CO <br /> <br />LOCATION.--Lat 39°33'26", long 105°03'27", SE¼, sec. 1, T.6 S., R.69 W., Jefferson County, Hydrologic Unit <br />10190002. <br /> <br />DRAINAGE AREA.--3,018 mi². <br /> <br />GAGE.--Steven’s A-70 Graphic water-stage recorder with satellite telemetry with electric drop tape for <br />reference. <br /> <br />REMARKS.--The record is complete and reliable. The satellite is the primary record with the recorder chart <br />as back up. The record is fair due to variations in shifts obtained using the current rating table. <br />Also, flows less than 10 cfs would be classed as poor because they were not adequately defined by <br />measurements. Station maintained and record developed by Robert E Cooper. <br /> <br />RATING TABLE.--PLACHACO02 USED FROM 01-OCT-1998 TO 30-SEP-1999 <br /> <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 <br />MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 64 55 0.92 0.20 9.1 44 7.8 871 2020 840 252 33 <br /> 2 71 21 0.90 0.20 8.9 54 7.8 1180 1990 870 112 16 <br /> 3 82 1.4 0.89 0.20 8.9 54 7.8 1440 1590 665 51 16 <br /> 4 82 1.4 0.92 0.20 8.9 41 7.8 1490 1230 584 229 16 <br /> 5 145 1.2 0.91 0.20 8.9 26 12 1370 1120 489 404 16 <br /> 6 208 1.1 0.81 0.20 9.1 26 35 1150 1120 439 661 16 <br /> 7 147 1.3 0.83 0.20 10 26 52 744 719 455 1030 15 <br /> 8 104 1.2 0.94 0.20 6.0 32 59 481 495 642 1320 25 <br /> 9 116 1.2 0.82 0.20 0.85 45 60 325 732 927 1450 35 <br /> 10 125 11 0.53 0.20 0.71 50 51 164 922 1110 1550 55 <br /> 11 125 32 0.30 0.20 0.92 50 50 376 1000 1110 1170 65 <br /> 12 125 16 0.29 0.20 0.78 51 32 496 1160 796 987 33 <br /> 13 105 4.7 0.32 0.20 0.68 50 6.4 448 1150 489 842 34 <br /> 14 95 4.7 0.29 0.20 0.56 50 13 383 1250 487 596 34 <br /> 15 62 4.6 0.29 0.20 0.61 50 120 312 1310 485 549 35 <br /> 16 52 1.7 0.29 0.20 0.68 49 99 312 1630 434 582 35 <br /> 17 66 0.01 0.26 0.20 0.70 41 9.1 203 2120 422 541 30 <br /> 18 66 0.0 0.29 0.21 0.60 36 8.9 153 2090 573 404 25 <br /> 19 95 1.2 0.31 0.20 0.48 36 8.9 153 1940 709 309 24 <br /> 20 129 4.8 0.34 0.18 0.47 35 25 154 1700 493 311 158 <br /> 21 129 4.7 0.29 13 0.47 35 82 153 1520 362 312 237 <br /> 22 88 4.5 0.29 55 0.49 35 131 153 1570 442 312 47 <br /> 23 54 2.8 0.28 78 0.46 37 257 153 1600 532 315 26 <br /> 24 67 1.0 0.29 78 0.47 38 277 324 1540 577 248 7.8 <br /> 25 67 1.0 0.25 49 0.54 38 182 531 1470 576 174 7.8 <br /> 26 82 0.94 0.28 14 19 38 122 828 1380 466 101 7.5 <br /> 27 130 0.99 0.27 11 36 38 140 1360 1300 302 50 21 <br /> 28 114 0.93 0.26 8.5 35 38 155 2010 1270 321 50 71 <br /> 29 55 0.93 0.27 8.5 --- 38 224 2210 1260 425 49 67 <br /> 30 55 0.93 0.21 8.5 --- 99 582 2030 836 404 49 37 <br /> 31 55 --- 0.20 8.8 --- 75 --- 2030 --- 355 49 --- <br /> <br /> TOTAL 2960 184.22 14.33 336.29 170.27 1355 2824.5 23987 41034 17781 15059 1245.1 <br /> MEAN 95.5 6.14 0.46 10.8 6.08 43.7 94.2 774 1368 574 486 41.5 <br /> AC-FT 5870 365 28 667 338 2690 5600 47580 81390 35270 29870 2470 <br /> MAX 208 55 0.94 78 36 99 582 2210 2120 1110 1550 237 <br /> MIN 52 0.0 0.20 0.18 0.46 26 6.4 153 495 302 49 7.5 <br /> <br /> CAL YR 1998 TOTAL 79285.13 MEAN 217 MAX 1440 MIN 0.00 AC-FT 157300 <br /> WTR YR 1999 TOTAL 106950.71 MEAN 293 MAX 2210 MIN 0.00 AC-FT 212100 <br /> <br /> MAX DISCH 2372 CFS AT 1530 28-MAY-1999 GH 5.34 FT. SHIFT 0.02 FT. MAX GH 5.34 FT. AT 1530 28-MAY-1999 <br /> <br /> FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br /> <br />0 <br />500 <br />1000 <br />1500 <br />2000 <br />2500 <br />OctNovDecJanFebMarAprMayJunJulAugSep