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Upper North Fork (USGS) <br />Daily Mean Discharge Values <br />(cubic feet per second) <br />CJ <br />• <br />Day Oct-07 Nov-07 Dec-07 Jan-08 Feb-08 Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 <br />1 111.00 176.00 113.00 84.00 73.00 Ice 285.00 2100.00 3220.00 1500.00 252.00 237.00 <br />2 192.00 170.00 87.00 76.00 70.00 Ice 381.00 1830.00 3430.00 1380.00 246.00 237.00 <br />3 162.00 164.00 70.00 81.00 70.00 Ice 446.00 1260.00 3450.00 1300.00 242.00 219.00 <br />4 148.00 159.00 80.00 86.00 64.00 Ice 412.00 1180.00 3180.00 1220.00 236.00 207.00 <br />5 147.00 156.00 98.00 92.00 61.00 Ice 360.00 1280.00 2710.00 1170.00 245.00 210.00 <br />6 146.00 142.00 99.00 96.00 74.00 Ice 347.00 1820.00 2340.00 1090.00 259.00 226.00 <br />7 140.00 129.00 121.00 81.00 77.00 Ice 351.00 2110.00 2180.00 1040.00 263.00 231.00 <br />8 132.00 126.00 119.00 80.00 70.00 Ice 327.00 2630.00 2290.00 925.00 312.00 228.00 <br />9 128.00 108.00 99.00 80.00 72.00 Ice 354.00 2300.00 1950.00 8221.00 288.00 227.00 <br />10 120.00 90.00 80.00 73.00 72.00 Ice 361.00 2270.00 1880.00 745.00 218.00 234.00 <br />11 115.00 88.00 86.00 81.00 70.00 96.00 311.00 2130.00 2090.00 696.00 160.00 238.00 <br />12 111.00 87.00 80.00 80.00 63.00 102.00 249.00 2280.00 1610.00 647.00 145.00 263.00 <br />13 108.00 85.00 67.00 79.00 Ice 133.00 260.00 2280.00 1510.00 59°1.00 133.00 242.00 <br />14 110.00 84.00 79.00 85.00 Ice 158.00 423.00 2090.00 1930.00 546.00 125.00 235.00 <br />15 111.00 81.00 70.00 84.00 Ice 159.00 854.00 2190.00 2180.00 501.00 120.00 230.00 <br />16 107.00 83.00 68.00 88.00 Ice 154.00 1150.00 2400.00 2420.00 4641.00 202.00 227.00 <br />17 127.00 80.00 82.00 85.00 Ice 150.00 815.00 2760.00 2640.00 436.00 243.00 224.00 <br />18 142.00 80.00 99.00 83.00 Ice 147.00 816.00 3150.00 2690.00 417.00 209.00 225.00 <br />19 146.00 78.00 95.00 84.00 Ice 150.00 1050.00 3300.00 2700.00 385.00 108.00 222.00 <br />20 164.00 78.00 90.00 94.00 Ice 149.00 1500.00 3610.00 2480.00 360.00 104.00 218.00 <br />21 168.00 74.00 86.00 82.00 Ice 114.00 1520.00 4120.00 2310.00 346.00 101.00 220.00 <br />22 156.00 52.00 80.00 73.00 Ice 133.00 1510.00 3990.00 2230.00 360.00 103.00 217.00 <br />23 179.00 57.00 79.00 76.00 Ice 164.00 1870.00 3300.00 2140.00 333.00 185.00 145.00 <br />24 195.00 58.00 88.00 73.00 Ice 175.00 1970.00 2860.00 2040.00 350.00 217.00 91.00 <br />25 195.00 40.00 86.00 63.00 Ice 200.00 1620.00 2530.00 1940.00 297.00 250.00 90.00 <br />26 196.00 59.00 72.00 62.00 Ice 252.00 1380.00 2530.00 1940.00 280.00 251.00 89.00 <br />27 197.00 62.00 79.00 68.00 Ice 371.00 1350.00 2720.00 1790.00 264.00 247.00 165.00 <br />28 194.00 70.00 67.00 63.00 Ice 413.00 1580.00 3070.00 1630.00 250.00 241.00 215.00 <br />29 190.00 41.00 84.00 64.00 Ice 315.00 1940.00 3240.00 1620.00 231.00 238.00 141.00 <br />30 186.00 74.00 87.00 61.00 -- 234.00 2070.00 3400.00 1600.00 246.00 235.00 78.00 <br />31 180.00 -- 88.00 72.00 -- 249.00 -- 13310.00 1 -- 2611.00 234.00 -- <br />Mean 151.71 94.37 86.39 78.35 69.67 191.33 928.73 2581.94 2270.67 62-x.65 206.84 201.03 <br />Min 107.00 40.00 67.00 61.00 61.00 96.00 249.00 1180.00 1510.00 231.00 101.00 78.00 <br />Max 197.00 176.00 121.00 96.00 77.00 413.00 2070.00 4120.00 3450.00 1500.00 312.00 263.00 <br />ice- ice affected <br />• <br />A-1 <br />West Elk Mine <br />2008 Annual Hydrology Report HydroGeo, Inc-