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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2009 Annual Hydrology Report NFG -up <br />0 North Fork - Drainage System <br />Elevation - 6880 <br />Initiated <br />9130/1996 <br />9/3011996 <br />9130/1996 <br />9/30/1996 <br />9/30/1996 <br />Activated <br />3/31/1997 <br />3131/1997 <br />3/31/1997 <br />3/31/1997 <br />3/31/1997 <br />Date 0 <br />11/23/2009 <br />9/22/2009 <br />8/20/2009 <br />6/8/20091 <br />3117/2009 <br />Summary Information <br />Baseline Operation <br />MR-11 ",, UNITS Min Ave Max Min Ave Max <br />Flow <br />CFS <br />99 <br />292 <br />610 <br />53 <br />75 <br />85 <br />243 <br />1120 <br />204 <br />FieldComment <br />ph <br />su <br />8.1 <br />8.5 <br />8.8 <br />7.5 <br />8.3 <br />8.4 <br />8.6 <br />8.1 <br />7.8 <br />Conductivity <br />umhos/cm <br />160 <br />1 <br />167 <br />180 <br />50 <br />A4722720 <br />230 <br />250 <br />190 <br />80 <br />170 <br />Temperature <br />Celsius <br />3.6 <br />7.3 <br />13.7 <br />0.2 <br />2.0 <br />8.3 <br />10.4 <br />11.8 <br />5.4 <br />DO <br />mg /L <br />7.2 <br />11.41 <br />8.9 <br />9.11 <br />8 <br />9.1 <br />0 <br />• <br />Baseline Information for Point NFG -up is derived from events beginning on 9/30/96 through 3/31/97. <br />Point influenced by mining on 3/31/97. <br />Figure No. 125 <br />Field parameters, except flow in the Upper North Fork of the Gunnison River monitoring point are taken on the river just above its confluence with <br />Hubbard Creek. Flow data for the North Fork of the Gunnison river is obtained from USGS station 1!09132500. <br />