2007-11-22_REVISION - M1997054 (3)

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2) Please provide a new mining plan map showing the previous and new mining limits. The maps provided do not clearly show those limits for the quarry area. III) EXHIBIT D Mining Plan 1) In the exhibit you stated that " the original permit proposed to mine 54.8 acres for sand and gravel down to the water table. The current plan proposes to mine an additional 12 acres and a new mining depth down to bed rock (appx 60 feet) During the pre-operational inspection the Division noted that the pit floors were under water due to rise in water table. What is the current depth of the pit ? Given the amount of water that was noted, one must assume that an increase in depth of mining will likely follow with rise in water table How does the operator propose to mine the pit dry? How did you determine the rate transmissivity of the strata ? Does the operator agree that there is going to be a change in the potentiometric surface due to pressure ? Was a well pump test conducted ? Please explain. It is more than likely given what was observed during the pre-operational inspection that pumping the water from the pit floor, is going to be required. Please provide the detailed plan for the pump or pumps and all ancillary support equipments to be utilized so it will be included in the cost of reclamation. 2) How is material from the small 3 acre sand stone quarry removed ? There is a haul road even though not properly shown in the mining plan map. Is a conveyer system going to be utilized or trucks will be used to haul the material? Please explain. 3) Under the sand and gravel mining plan you stated, that the processing plant has been established in the Eastern portion of the gravel pit, with conveyer belts extending westward. The original warranty calculation did not include the cost of removal of the system. What is the length and width of the conveyer system. Please include the # of concrete support structures it will require to run the system. 4) The Division has received a letter from the Colordao State Parks expressing their concerns about fugitive dust increase blowing into their park area from your operation. The letter has been faxed to you, with a hard copy to follow. Has the operation exceeded their Emissions permit standards issued by the Colorado Department of Health and Environment, Air Emissions Department ? You state in your narrative, that dust control is being controlled by a NESCO. Please explain what the system is and how dust control on site is implemented. 5) The operator states." under current conditions, sediment ponds have been established along the mined area". Are these the two ponds noted along the northern portion of gravel pit in Exhibit C-2. ? What is the dimension of these ponds. Are they going to be backfilled with wash fines? Please explain. 6) Operator states, "under current conditions, topsoil stockpiles were temporarily placed along the South side mining boundary for noise abetment to conform to the original Fremont County Conditional use permit." Are these areas the only place top soil will be stockpiled for both the quarry and the sand and gravel operation ? Please explain. 7) Under fuel storage you stated " the Division has reviewed the applicant's fuel storage area during the original application. The fuel storage area is designed to contain approximately 140% of the 10,000 gallons. It has double walled storage tank capacity in case of a spill". The design is acceptable, however, during the per-operational inspection it was noted that the ground around the faculty is not compacted to minimize percolation in the event of a spill. Please provide a plan that shows the area around the facility 10 feet 20 feet on each side is compacted to at least 85-90 proctor. 2