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1 <br /> <br /> <br />1 <br /> <br /> <br /> <br />INTRODUCTION <br />MINREC, INC., NORTH THOMPSON CREEK MINES <br />1993 ANNUAL HYDROLOGIC REPORT <br />OCTOBER 1992 THROUGH SEPTEMBER 1993 <br />The Operator completed reclamation of the North Thompson Creek <br />Mines during 1987. The No.l Mine was sealed during 1987 with the <br />expectation that no water would discharge from it again. The No. <br />3 Mine was sealed, however pipes were placed in the lowest seal to <br />allow water to drain from the mine. <br />Current monitoring requirements are shown on pages 3-61 and 3-86 of <br />the Permit. During 1988 page 3-86 was revised to include a <br />requirement to analyze the discharge from the No. 1 Mine water <br />treatment ponds annually in June. <br /> <br />1 <br />1 <br /> <br />1 <br />t <br />Monitoring data for this years report is segregated into the <br />following appendices: <br />Appendix No. Monitoring Data <br />I North Thompson Creek <br />Upstream 6 Downstream Water Quality <br />II Refuse Pile Piezometers, D-lA & D-2A <br />Water Level, pH, Conductivity & Graphs <br />III Mine Water Level <br />No. 3 Mine <br />IV Mine Discharge Quality <br />No. 1 Mine & No. 3 Mine <br />' METHODS <br /> <br />1 <br />1 <br />The following narrative explains the methods used to perform water <br />monitoring: <br />Flow - Flow is determined at discharge points 001 & 007 by timing <br />flow into a bucket of known volume. <br /> <br />