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GENERAL52673
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Last modified
8/24/2016 8:38:28 PM
Creation date
11/23/2007 7:57:19 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
General Documents
Doc Date
2/2/2001
Doc Name
MEMO ROADSIDE MINE
From
DMG
To
MICHAEL LONG DAVID BERRY
Permit Index Doc Type
GENERAL CORRESPONDENCE
Media Type
D
Archive
No
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undesirable materials to be removed during the reclamation process. Leaving only the <br />non-value holding scrap behind represents a reclamation liability to the State. Perhaps <br />an agreement could be reached wherein all of the metallic materials were removed from <br />the site by the owner /operator. This overall scrap removal operation could be funded, <br />to the extent possible, by the sale of the value holding equipment. Removal of all <br />metallic materials from the site would reduce the overall reclamation liability for the <br />owner and for the State. <br />Many factors combine to create the potential for a difficult and costly Reclamation <br />Project. It is my overall impression that the reclamation plan for this site is poorly <br />conceived, with little, if any, thought given to the economic completion of reclamation <br />construction. The discontinuous nature of the operation works against efficient <br />equipment utilization at the Roadside Mine. The resources needed to accomplish <br />reclamation construction are poorly situated in relation to the areas requiring <br />reclamation. This is most apparent in the lack of adequate soil resources, resulting in <br />the necessity to create large borrow areas below the refuse piles. The amount of <br />structural demolition, including the anticipated degree of difficulty in removing the River <br />beltline, contribute to the overall degree of difficulty. <br />If negotiations are undertaken for the purpose of agreeing upon a reduced cost estimate <br />amount, I suggest that the line items for Contractor Profit, Engineering Costs, Job <br />Superintendent, and Division of Minerals and Geology Costs be eliminated. This will <br />result in a reduction of about $572,457 from the cost estimate. Our experience at Coal <br />Basin indicates that these are not expenses incurred by the State when it administers a <br />Coal Forteiture reclamation project. <br />I was also asked to comment on the proposed dewatering plan for the South Mine. My <br />understanding is that the current siphon system is to be replaced by angled drill hole(s) <br />which would dewater the mine under hydraulic pressure. I agree that the siphon system <br />should be replaced by a free draining system. However, experience at Coal Basin <br />indicates that reliance on a small diameter drainage system is tenuous. A small <br />blockage by foreign material will seriously compromise a small diameter drainage <br />system. I recommend that a large diameter (three to four feet) drain be installed at the <br />now closed mine entry adjacent to Interstate 70. A well constructed and secured, large <br />diameter drain would be a more appropriate long term solution to the drainage problem. <br />Not only will a large diameter drain ensure that the system will be less subject to <br />blockage failures over time, but the cost of installation may be equal to, or less than, the <br />estimated angle drilling costs. <br />Cc: Dan Mathews <br />Cheryl Linden, OAG <br />C:lsgr\geMpccrecl <br />
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