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MINREC, INC., BLUE RIBBON MINE <br />2006 ANNUAL HYDROLOGIC REPORT <br />JANUARY 1, 2006 THROUGH DECEMBER 31, 2006 <br />L J <br />INTRODUCTION <br />The Blue Ribbon Mine went into permanent cessation in 1986 and the majority of <br />reclamation was completed that year. A minor amount of grading was done in 1987 on the <br />portal bench to improve drainage. During 1988, 1989 and 1993 portions of the bench <br />cover material slumped and were repaired and seeded. <br />The hydrologic monitoring plan is contained in the permit document, pages 124 and 124a <br />which were revised July 28, 1994 and October 10, 1995 respectively. Exhibits H-1 and Z <br />show the various monitoring locations. <br />SURFACE WATER <br />The following table shows the flow, pH and conductivity for upstream and downstream <br />Hubbard Creek by quarter for 2006 compared to the same month averages from 1982 <br />through 2006. <br /> Upper Hubbard Creek Lower Hubbard Creek <br />Quarter Parameter AVE 2006 AVE 2006 <br />151 Flow, cfs 22.8 6.9 - - <br /> pH 8.1 8.6 8.1 8.5 <br /> Cond-umhos/cm 206 200 217 200 <br />2nd Flow, Cfs 32.3 3.6 - - <br /> pH 8.2 8.3 8.1 8.2 <br /> Cond-umhos/cm 214 280 223 290 <br />3~d Flow, cfs 6.2 4.3 - - <br /> pH 8.2 8.5 8.2 8.6 <br /> Cond-umhos/cm 247 240 262 220 <br />4'h Flow, cfs 6.8 7.3 - - <br /> pH 8.1 8.4 8.1 8.2 <br /> Cond-umhos/cm 219 270 239 240 <br />