2017-01-30_REPORT - C1981018 (2)

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There is one upper facies hole with water (22-3U). 22-3U is a newer hole constructed in the fourth quarter of 2005 for baseline and monitoring purposes of future mining activities. Water levels in this well appeared stable over the past year with an indicated rise of only 0.1 feet. Data for this well and other wells are shown in Appendix C. Well 29-4U was subsided in early 2013. A blockage resulted at 309.2 feet. It is expected that this well would have reported as being dry even if no blockage had occurred. The water level in 33-8U decline with a drop of 1.3 feet from the prior year. This drop is potentially due in part to the close proximity to the mine. The water level now stands at 275.3 feet, comparable to that of 33-8M which also showed a decline of 1.3 feet since last year. Historically these wells fluctuated similarly. The middle "siltstone-coal facies" monitoring holes are designated by an "M" following the hole number. These monitor holes are open through the interval containing the D Seam and B Seam. Monitoring hole 22-3M was drilled in November 2006 and is now the 'point of compliance'. Depth to water data is included in Appendix D and annual qualitative data presented in Appendix C. This hole has exhibited a very slow artesian flow from 2007 through 2012. The flow rate ranged from 150 ml/minute in 2010 to 13.2 ml/minute in 2012. The artisan flow has now stopped and the water level has dropped to 18.1 feet, 4.8 feet lower than last year. Monitor hole TW2-17M was surrounded by mining first in November 1985 but was not intercepted in the workings. It is apparently located in a pillar completely surrounded by open workings. At that time it showed virtually no response to development mining. In February 1988 Iongwall panel 1 was mined to within about 900 feet of this hole. Obviously, Iongwall mining disrupts the mined zone more than development mining, and the water level in TW2-17M did show a response to mining at that time. The water level generally decreased since 1988 with a rise of 2.4 feet since the last monitoring period. This rise may be associated with the long term rising waterline within the D -seam workings. However, the water level has decreased due to pumping during this water year indicating the response is slow and connectivity is limited. Monitoring Hole 29-4M was plugged in November 2012 to eliminate connection with the sealed off portion of the mine. The water level in Hole 30-8M was confirmed dry at 464.5 feet. This is the same elevation as last year. The prior four years of measurements may have been showing I.