1990-07-25_REPORT - M1977378 - Laserfiche WebLink

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Terry Tunnel Area - Plate No. 2 (continued) Efforts were made to seal Pond#2 but we do not believe they were successful as dye placed in the water could be detected as seepage at stream level . The new portable lime feed system was placed in service in late May, 1989 and was active through October , 1.989 . Activities planned for 1990 are: (1) To do the annual ;site cleanup work although the efforts required should be minimal at this site. (2) Seal Pond#2 so no seepage can be detected. (3 ) Experiment with planting on the Terry dump side-slopes. (4) Install a new weir (for discharge flow measurement) with the capacity to measure accurately the wide flow range experienced at this discharge. Sunnyside Basin (Lake Emma) Area - Plate No. 2 Underground mining was conducted in Sunnyside Basin as covered in TR No. 07 . The three small underground blocks of ore were mined with the only disturbance not already disturbed by the 1988 open pit work being a short section of road (an extension off an existing road) to the No Name portal . The waste rock stockpiles were treated with ProMac during July and October as committed to for mitigation of acid production from the temporary waste stockpiles. Samples of the waste rock were taken and sent to BF Goodrich for analysis in order to gauge the effectiveness of the treatment process (report attached in Appendix A. ) . It appears that the treatment process is having the desired effect. The Lake Emma test plot area was evaluated on 9/15/89 by Thomas Colbert of IMS Inc . . Tom originally constructed the test plots in the fall of 1988 . He was very encouraged by the growth in the test plots and noted that the ProMac treatment had a positive effect on seedling establishment. The report on this visit is ✓" included in � ndix A. The report by BF Goodrich on the samples taken from the test plot area is also included in the Appendix A. -3-