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1 <br />11 <br />MiNREC, INC., NORTH THOMPSON CREEK MINES <br />' 1996 ANNUAL HYDROLOGIC REPORT <br />' OCTOBER 1995 THROUGH SEPTEMBER 1996 <br />INTRODUCTION <br />The Operator completed reclamation of the North Thompson Creek Mines during 1987. The No. l <br />' Mine was sealed during 1987 with the expectation that no water would discharge from it again. The <br />No. 3 Mine was sealed, however pipes were placed in the lowest seal to allow water to drain from <br />the mine. <br />' Current monitoring requirements are shown on pages 3-61 and 3-86 of the Permit. <br />' Monitoring data for this years report is segregated into the following appendices: <br /> Appendix No. Monitoring Data <br /> <br /> I North Thompson Creek <br /> Upstream & Downstream Water Quality <br /> <br /> II Refuse Pile Piezometers, D-1 A & D-2A <br />t Water Level, pH, Conductivity & Graphs <br /> III Mme Water Level <br />t No. 3 Mine <br /> IV Mine Discharge Quality <br /> No. 1 Mine & No. 3 IvLne <br /> METHODS <br /> ll l <br />i <br /> The fo <br />owing nar rative exp <br />a <br />ns the methods used to perform water monitoring: <br />Flow -Flow is determined at discharge points 001 & 007 by timing flow into a bucket of known <br />volume. <br />' pH - A Cole Parmer pocket size tester (pH. Range -1.0 to 15.0 pH). Resolution 0.1 pH. Accuracy <br />+/- 0.1 pH. Operating temperature 0 to 50 °C. Temperature compensation: automatic 0 to 50 °C. <br />' Conductivity -One Cole Parmer TDS Testr 20 pocket size tester. Accuracy: +/- 2% FS. <br />Temperature compensation: automatic 0 to 50 °C. Operating temperature: 0 to 50 °C. Ranges: 0 to <br />' 0 to 1,900 umhos/cm and 2.0 to 19.90 mmhos/cm. <br /> <br />