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MINREC, INC. ANNUAL HYDROLOGIC REPORT PAGE 3 <br />A table of the No. 3 Mine water level measurements and a graph which shows the increase <br />and decrease in water level over time are presented in Appendix III. No water level <br />monitoring was performed at the No. 3 Mine during 2003. <br />MINE WATER QUALITY <br />The discharge from the No. 3 Mine and No. 1 Mine were combined on August 11, 1995. <br />The average flow measurements from the No. 3 Mine (Outfall 007) for the period 1990 <br />through 1994 are summarized below. <br />NO. 3 MINE DISCHARGE <br />Year 1990 1991 1992 1993 1994 <br />Flow m 6.7 6.8 5.5 1 0.4 8.0 <br />Water from the No.1 Mine and No. 3 Mine continues to be treated by the passive water <br />treatment system. The quality of the discharge is presented in a table in Appendix IV. The <br />quality of the discharge from the mines showed some slight variation from last year. The <br />flow decreased, conductivity increased and TDS decreased during the year. <br />The following table presents arithmetic averages of flow and quality measurements taken <br />at Outfall 001. Outfall 001 is the discharge point for the passive water treatment system. <br />As of August 11, 1995, the discharge from Outfall 001 is the combined discharge from the <br />No. 1 and No. 3 Mines. <br />OUTFACE 001 -QUALITY <br />YEAR Flow Max Flow Ave H COND TDS IRON <br />___1989__ ____ 43 _0 __ ____i 6 _5 __ ____ 7 _9 __ __ 3598 _ ___2512 _ ____ 1,51 _ <br />___1990__ ____30.0__ ____17:0__ ____8.1 __ __ 3157 _ ___2129 _ ____1,16_ <br />___1991__ ____ 30.3__ ___ 20.1 __ ____8.1 __ ___2890 _ ___2018 _ ____1_28_ <br />1992 27.7 19.3 8.0 2722 1805 0.72 <br />1993 <br />---------- 27.9 <br />------------ 22.4 <br />----------- 7.9 <br />---------- 2643 <br />---------- 1738 <br />---------- 0.54 <br />---------- <br />1994 21.6 21.2 7.6 2627 1710 0.52 <br />1995 75.2* 32.5 7.8 2435 1663 0.17 <br />