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21 <br />PLATTE RIVER BASIN <br /> <br />06708000 SOUTH PLATTE RIVER AT WATERTON, CO <br /> <br />LOCATION.--Lat 39°29'18", long 105°05'32", in NE¼ sec. 34, T.6 S., R.69 W., Jefferson County, Hydrologic Unit <br />10190002, on left bank 168 ft downstream from bridge on State Highway 221, 0.4 mi south of Waterton, 4.7 <br />mi west of Louviers, and 6 mi upstream from Plum Creek. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--2,621 mi²; 1926 to present. <br /> <br />GAGE.--Graphic stage recorder and shaft encoder (on separate floats), satellite monitoring DCP with a phone <br />modem in a 60-inch galvanized, corrugated steel shelter and well. The primary reference is an electric <br />drop tape. The gage has power and is equipped with heat lamps to prevent the well from freezing. The <br />DCP is state-owned, but the phone card is owned by the USACOE and maintained by the USGS. The gage is <br />owned and maintained by Denver Water Department. Datum of gage 5,484.43 ft National Geodetic Vertical <br />Datum, adjustment of 1912. <br /> <br />REMARKS.--The primary record is hourly data taken from satellite monitoring with chart back up. The record is <br />complete and reliable, except for November 30, December 1-3, 28, 2006, which had possible slight ice <br />effect. The record is rated good, except for days of possible ice effect, which are fair. Station <br />maintained and record developed by Jana Ash. <br /> <br />RATING TABLE.--PLAWATCO10 USED FROM 01-OCT-2006 TO 30-SEPT-2007 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 162 234 28 18 17 27 667 1370 1080 941 375 155 <br /> 2 139 309 28 18 19 26 622 1430 1010 868 352 90 <br /> 3 66 350 27 20 20 22 282 1440 982 680 274 90 <br /> 4 17 270 29 21 21 23 124 1440 879 553 277 89 <br /> 5 28 93 28 21 24 18 95 1280 778 562 367 112 <br /> 6 31 133 25 18 28 29 108 1220 659 578 538 141 <br /> 7 31 91 24 19 20 28 125 1290 904 580 811 106 <br /> 8 33 49 24 19 20 27 126 1270 908 519 922 65 <br /> 9 34 36 24 19 18 30 124 1300 827 461 898 71 <br /> 10 86 37 24 19 18 30 99 1330 795 434 685 76 <br /> 11 122 37 24 19 19 31 62 1330 761 433 509 70 <br /> 12 139 92 23 18 20 31 48 1330 784 484 514 69 <br /> 13 170 151 26 17 19 38 60 1300 1010 600 383 73 <br /> 14 169 176 31 19 19 94 72 1240 885 609 220 72 <br /> 15 168 162 25 22 20 153 72 1350 832 618 217 72 <br /> 16 168 160 17 20 24 141 73 1500 807 484 217 52 <br /> 17 200 121 17 18 24 101 83 1450 777 315 214 29 <br /> 18 229 68 17 18 23 245 76 1410 898 269 241 20 <br /> 19 184 75 20 19 26 300 93 1350 993 214 319 18 <br /> 20 98 75 22 19 24 337 207 1430 871 235 455 13 <br /> 21 102 77 19 19 22 385 302 1570 798 389 454 14 <br /> 22 101 58 21 19 23 440 303 1610 899 466 312 15 <br /> 23 100 33 18 18 24 554 302 1570 1040 461 294 15 <br /> 24 90 34 13 19 24 628 448 1490 1070 381 345 29 <br /> 25 64 34 16 19 22 621 606 1470 1040 326 411 21 <br /> 26 98 33 20 19 20 603 588 1410 911 328 444 13 <br /> 27 206 33 19 19 24 563 653 1280 835 341 394 18 <br /> 28 290 31 21 19 26 598 897 1170 834 360 115 13 <br /> 29 319 30 17 18 --- 634 1200 1140 885 505 159 13 <br /> 30 247 27 18 18 --- 666 1350 1140 953 560 283 16 <br /> 31 70 --- 15 19 --- 672 --- 1120 --- 486 260 --- <br /> <br />TOTAL 3961 3109 680 587 608 8095 9867 42030 26705 15040 12259 1650 <br />MEAN 128 104 21.9 18.9 21.7 261 329 1356 890 485 395 55.0 <br />AC-FT 7860 6170 1350 1160 1210 16060 19570 83370 52970 29830 24320 3270 <br />MAX 319 350 31 22 28 672 1350 1610 1080 941 922 155 <br />MIN 17 27 13 17 17 18 48 1120 659 214 115 13 <br /> <br />CAL YR 2006 TOTAL 38865 MEAN 106 MAX 833 MIN 12 AC-FT 77090 <br />WTR YR 2007 TOTAL 124591 MEAN 341 MAX 1610 MIN 13 AC-FT 247100 <br /> <br />MAX DISCH: 1630 CFS AT 13:00 ON May. 21, 2007 GH 2.86 FT. SHIFT -0.02 FT. <br />MAX GH: 2.86 FT. AT 13:00 ON May. 21, 2007 <br /> <br />FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br /> <br /> <br /> <br />