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Upper North Fork (USGS) <br />Daily Mean Discharge Values <br />(cubic feet per second) <br />I• <br />r1 <br />L_J <br /> <br />Da Oct-00 Nov-00 Dec-00 Jan-01 Feb-01 Mar-01 A r-01 Ma -01 Jun-01 Jul-01 Au -01 Se -01 <br />1 95 80 55 52 51 52 110 1,690 1,100 '240 243 218 <br />2 87 78 54 54 46 52 120 1,820 1,200 230 229 213 <br />3 77 77 54 52 44 50 140 1,680 1,000 230 219 211 <br />4 75 77 58 52 45 54 160 1,440 700 230 228 220 <br />5 79 81 60 48 47 50 180 1,200 520 235 216 216 <br />6 76 77 50 47 49 54 188 1,200 560 240 267 214 <br />7 74 72 54 46 50 60 161 1,000 560 250 228 215 <br />8 72 77 56 50 47 62 148 940 560 284 223 223 <br />9 72 80 52 48 47 66 133 920 550 250 286 227 <br />10 72 79 52 50 50 68 141 960 540 240 229 221 <br />11 75 79 54 48 48 64 142 1,010 520 230 213 212 <br />12 80 77 58 46 47 60 135 1,200 460 230 206 210 <br />13 79 78 54 46 47 58 132 1,300 430 240 215 208 <br />14 78 63 50 48 46 52 144 1,500 390 270 291 217 <br />15 78 66 44 56 44 56 138 1,600 350 250 291 209 <br />16 77 71 46 62 46 56 175 1,500 290 220 208 216 <br />17 77 67 52- 56 50 52 250 1,600 295 200 200 241 <br />18 77 66 58 50 52 50 368 1,500 310 180 206 248 <br />19 76 64 52 48 48 60 522 1,600 330 175 207 237 <br />20 76 64 63 57 49 78 767 1,700 340 175 206 228 <br />21 76 66 60 50 48 88 804 1,800 340 180 258 219 <br />22 76 68 56 46 49 100 738 1,700 330 190 257 213 <br />23 77 68 52 47 52 100 656 1,400 320 210 237 133 <br />24 83 66 52 44 48 110 627 1,500 300 230 206 68 <br />25 81 60 46 43 49 110 568 1,500 270 240 214 65 <br />26 77 64 44 42 52 103 643 1,400 230 242 218 64 <br />27 76 60 47 43 52 100 1,019 1,300 220 231 209 60 <br />28 77 63 52 45 52 93 1,290 1,100 250 213 218 56 <br />29 84 62 53 45 -- 88 1,419 1,100 250 213 228 56 <br />30 80 60 51 47 -- 94 1,540 1,200 240 221 226 54 <br />31 79 -- 50 49 - 100 - 1,150 -- 253 224 -- <br />Mean 78.0 70.3 52.9 48.9 48.4 72.3 451.9 1371.3 458.5 226.5 229.2 179.7 <br />Min 72.0 60.0 44.0 42.0 44.0 50.0 110.0 920.0 220.0 175.0 200.0 54.0 <br />Max 95.0 81.0 63.0 62.0 52.0 110.0 1540.0 1820.0 1200.0 284.0 291.0 248.0 <br />A-1 <br />West Elk Mine <br />2001 Annual Hydrology Report HydroGeo, Inc. <br />