2016-07-17_REVISION - M1985022 (3)

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Bullger Basin Mining Plan M1985-022 07/17/16 Mining will commence each season in the first part of June, depending on snow depths and weather conditions. It will continue until the first part of October when the weather becomes too severe to permit safe and practical mining. During this season of approximately 130 days, all mining will be open in nature. Earth moving will consist of ore being excavated by bulldozer and loaded into a feeder with a wheel loader. This feeder has a remote operated grizzly to screen off oversize rocks greater than 10". 10" minus material will be transported to the primary scalping screen via conveyor. Water is introduced into the material in primary scalping screen.The primary scalping screen is equipped with grizzly bars and 2 1/2"bottom deck screen. All 2 1/2"to 8" material is separated by the primary screen and stockpiled for site sediment control and rip rap. All 2 %z" minus material in a slurry form is passed through a nugget trap where coarse gold will be captured. From the nugget trap, all material is sent over a secondary vibratory screen to remove 2%"to%" aggregate. 2 %"x%" is conveyed to a stockpile via stacking conveyor. %" minus slurry material is passed through fine sluice boxes to capture fine gold. Slurry water discharged from the wash plant is gravity fed to pond one through a 14" HDPE pipeline. Water exits the pipe into pond 1 and travels around a dike system designed to encourage settling.This pond is lightly lined with bentonite to prevent seepage. All the pond structures have been present on site for decades and have been moved and reconstructed over the years. Water flows from pond one to pond two through a 12" steel pipe. Water level in pond one can be regulated by the use of a 12" butterfly valve and outlet structure to optimize water availability. Pond 1 is also equipped with a 14" steel overflow pipe approximately 12" higher than normal operating levels to maximize holding capacity. There are no valves on this line which allows for emergency overflow and keeps pond one from overtopping the dike. Both of these lines spill to pond 2. Pond 2 provides additional storage capacity and settling area for process water. Water exits pond 2 to pond 3 through three pipes; 2 low water 10" steel pipes and one 12" steel emergency overflow pipe. Pond 3 is used as the plant pump supply reservoir and is equipped with an 8"x6" diesel powered pump to supply the plant with approximately 1200 gallons per minute during operation. Water is pumped to the plant through an 8" HDPE line thus creating a closed loop system, recycling process water. Water can be diverted from the plant to pond 1 through the same 14" line used for process water via an 8" HDPE bypass line and valve if necessary. Pond 3 is also equipped with two 12" emergency overflow steel pipes with no valves. Any spillage from those pipes would travel to an emergency catchment basin through a ditch.The emergency catchment area is equipped with a rock overflow channel and would be the point for water sampling in the event of discharge, as per our current storm water discharge permit (permit number CO0048971) which was activated July 1, 2016. There are two other ponds on site referenced as pond 4 and pond 5 on our storm water permit. Both ponds are only used as storm water catchment and not used for process water.There is a 12"steel overlow pipe with no valve from pond 4 to pond 5 and any overflow from pond 5 would enter the emergency catchment area as mentioned above.