2002-02-15_REVISION - M1981014

• Permit No: M1981014
• IBM Index Class Name: Revision
• Doc Date: 2/15/2002
• Doc Name: Notice of Bond Increase
• From: DMG
• To: Valco Gunnison Concrete Division
• Type & Sequence: SI1
• Media Type: D
• Archive: No

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STATE OF COLORADO
DIVISION OE MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
February I5, 2002
E~ Stewart
Valco, Inc. -Gunnison Concrete Division
P.O. BOX 837
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DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
Bil I Owens
Governor
Greg E. Walther
Executive Director
Michael B. Long
Division Director
Gunnison, CO 81230
Re: Rozman Pit,/P/erniit No. M-1981-014, Routine Bond Review, Notice of Bond Increasev
Dear Mr. Stewart,
It has been six years since the bond amount for the Rozman Pit was last reviewed in detail I have just finished a
revised reclamation cost estimate, and find that a significant increase is indicated by the new figures. These new
figures arc in the attached packet for your use. In the paragraphs below are a few notes of explanation about dle
figures.
The site is approved for up to 40 acres of disturbance, with activities approved to occur concurrently in two
different phases. Presently the operation is affecting Phase IA and IB, and it appears that activity [here will
continue for several more years. Therefore, I based highwall grading volumes on the post-mining topography of
those two phases. The slope gradient during mining averages about I.J: 1, and it is to be reduced to 3:1 for
reclamation. All gradients allow for equipment access to all areas.
Topsoil depths vary on the site, according to the file, from 0 to 8 inches. The approved plan requires an average of
4 inches of topsoil to be replaced. Stockpiled topsoil is approved to be stored along the permit boundary or margins
of the active phase. Topsoil replacement on the slopes involves simply pushing it down on the graded slopes.
Topsoil replacement on the floor involves the extra step of hauling it from the perimeter stockpiles to the floor areas
by scraper before spreading it evenly by dozer.
The permit restricts activity in proximity to the Slate River. All mining activity is away from the river corridor, as
well as reclamation activity. With no unsuitable gradients or wet areas, it is appropriate that the entire site may be
seeded, mulched and fertilized by tractor.
The new reclamation cost figure is $108,086, which represents an increase of $60,817 above the existing bond of
$47,269. The enclosed packet is arranged with a summan sheet first showing all task costs, followed by the
individual task sheets, and the equipment production and rental Sgures last.
Please note that State law allows for the periodic recalculation of bond amounts. If the recalculation indicates that a
shortfall in the bond exists, the operator must provide [he required increase in bond within 60 days after
notification. This letter constitutes your notice that the bond amount will increase.
Please review these figures and contact me promptly if you notice any errors or omissions. Regardless of how our
discussions influence the final bond amount, any increase must be received by the Division no later than 60 days
from the date of this letter. I will be happy to discuss any questions you have about these figures.