1997-02-11_REVISION - M1977342 - Laserfiche WebLink

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._ Procedural Memo - Henderson -3- February 6, 1997 3. The reclamation plan for the Henderson Mine surface facilities is completed, not including vegetation monitoring and fertilization. 4. The reclamation plan for the Henderson Mine surface facilities is completed, including vegetation monitoring and fertilization. 5. The reclamation plan for the Henderson Mine and Mill surface facilities is completed, not including vegetation monitoring and fertilization. 6. The reclamation plan for the Henderson Mine and Mill surface facilities is completed, including vegetation monitoring and fertilization. 7. A release issued by the Water Quality Control Commission waiving the requirement for the Division and the Mined Land Reclamation Board to meet the requirements of the discharge permit during reclamation, or reclamation, fertilization and vegetation monitoring. Summary and Conclusion The purpose and goal of TR-006 is to establish a bond fund sufficient to pay the cost of necessary water treatment to protect water quality until that point in time when one of the situations listed above occurs. The question to be resolved is which of the listed situations should be used in determining the amount of bond to be required, and are there other situations that should be considered that have not been listed above? Item no. 2 from the list can be eliminated from consideration at the outset because there is insufficient information available to properly evaluate the situation. The other listed situations need to be given due consideration, as do any other scenarios that may come up during discussions, and both the Division and CMC can select a preferred end point to be used in determining the bond amount to be required for water treatment. Hopefully the selections of CMC and the Division will concur. The various alternatives, along with the advantages and disadvantages of each, along with the preferred or recommended alternatives of the Division and CMC can be presented to the Mined Land Reclamation Board for a final determination. The following concerns need to be resolved as part of the consideration of this matter: 1. A cost for design and installation of a haulage tunnel plug needs to be determined. It is not necessary at his time to make the effort to come up with a rigorous plug design just to facilitate cost estimating, however, a conceptual design needs to be developed (in terms of plug length, reinforcement, etc.) to allow sufficient detail in the cost estimating. 2. Does the haulage tunnel ventilation shaft also need to be plugged? The vent shaft would be the lowest elevation mine opening after