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41 PLATTE RIVER BASIN LEFTHAND DIVERSION AT SO. ST. VRAIN CREEK NEAR WARD, CO LOCATION.--Lat 40°05'29", long 105°30'31", the gage is located ½ mile downstream from gage on S. St. Vrain Creek off Highway 72. PERIOD OF RECORD AND DRAINAGE AREA.--Established station on May 21, 1992 at request of Water Commissioner for administration of water rights in District 5, Div. 1. The gage is located one-quarter mile downstream from gage on South Saint Vrain Creek off Highway 72. This station is operated as a partial year record station usually from May to October. GAGE.--Data Collection Platform (DCP), shaft encoder and a continuous chart recorder in a 42-inch corrugated metal pipe shelter with a 42-inch concrete well at a concrete control. The well is connected to the channel with two two-inch polyvinyl conduit (PVC) inlets. The PVC inlets are equipped with ball valves, street keys and flushing risers. The primary reference gage is a metal drop tape from an adjustable reference point. No supplemental staff is present. REMARKS.--The primary record is hourly averages of 15-minute DCP data with chart as backup. Record is complete and reliable, except for October 14-19, 2007, when the stage-discharge relationship was affected by ice; October 19, 2007 to May 19, 2008, when the gage was shut down for winter and no gage-height information was collected. Record is good, except for periods of no gage height and ice affected record, which are poor; discharge for Oct 19 and May 19 are estimated and poor, since they are based on partial day record. This is a partial year record. Station maintained and record developed by Russell Stroud. RATING TABLE.--LEFTHDCO03 USED FROM 01-Oct-2007 TO 30-Sep-2008 DISCHARGE, IN CFS, WATER YEAR OCTOBER 2007 TO SEPTEMBER 2008 MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 9.0 --- --- --- --- --- --- --- 116 131 37 35 2 12 --- --- --- --- --- --- --- 137 129 44 33 3 10 --- --- --- --- --- --- --- 150 125 43 32 4 10 --- --- --- --- --- --- --- 146 129 42 30 5 9.5 --- --- --- --- --- --- --- 136 123 39 30 6 9.3 --- --- --- --- --- --- --- 111 123 39 27 7 8.4 --- --- --- --- --- --- --- 94 122 49 25 8 7.6 --- --- --- --- --- --- --- 95 114 42 23 9 8.4 --- --- --- --- --- --- --- 74 94 43 21 10 7.9 --- --- --- --- --- --- --- 70 93 53 14 11 7.9 --- --- --- --- --- --- --- 90 91 49 9.9 12 7.5 --- --- --- --- --- --- --- 68 84 44 17 13 7.5 --- --- --- --- --- --- --- 56 81 39 15 14 9.5 --- --- --- --- --- --- --- 68 73 35 13 15 8.0 --- --- --- --- --- --- --- 92 64 40 11 16 8.0 --- --- --- --- --- --- --- 113 63 60 10 17 8.0 --- --- --- --- --- --- --- 122 60 61 9.2 18 9.0 --- --- --- --- --- --- --- 130 61 50 9.3 19 9.0 --- --- --- --- --- --- 45 140 59 44 12 20 --- --- --- --- --- --- --- 45 149 59 40 11 21 --- --- --- --- --- --- --- 55 145 55 37 12 22 --- --- --- --- --- --- --- 66 143 54 35 12 23 --- --- --- --- --- --- --- 53 140 57 36 10 24 --- --- --- --- --- --- --- 44 128 71 36 9.2 25 --- --- --- --- --- --- --- 43 115 66 43 8.8 26 --- --- --- --- --- --- --- 47 122 56 44 8.3 27 --- --- --- --- --- --- --- 45 126 49 42 8.3 28 --- --- --- --- --- --- --- 53 132 47 38 8.3 29 --- --- --- --- --- --- --- 80 126 43 37 7.9 30 --- --- --- --- --- --- --- 86 132 40 36 7.9 31 --- --- --- --- --- --- --- 97 --- 37 35 --- TOTAL 166.5 --- --- --- --- --- --- 759 3466 2453 1312 480.1 MEAN 8.76 --- --- --- --- --- --- 58.4 116 79.1 42.3 16.0 AC-FT 330 --- --- --- --- --- --- 1510 6870 4870 2600 952 MAX 12 --- --- --- --- --- --- 97 150 131 61 35 MIN 7.5 --- --- --- --- --- --- 43 56 37 35 7.9 CAL YR 2007 TOTAL 6890.4 MEAN 44.5 MAX 109 MIN 7.5 AC-FT 13670 (PARTIAL YEAR RECORD) WTR YR 2008 TOTAL 8636.6 MEAN 56.1 MAX 150 MIN 7.5 AC-FT 17130 (PARTIAL YEAR RECORD) MAX DISCH: 169 CFS AT 02:00 ON Jun. 20, 2008 GH 2.21 FT. SHIFT 0.06 FT. MAX GH: 2.21 FT. AT 02:00 ON Jun. 20, 2008 FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD.