APPCOR12313

• Permit No: C1981023
• IBM Index Class Name: Application Correspondence
• Doc Date: 8/23/1982
• Doc Name: CHIMNEY ROCK COAL BONDING ESTIMATE
• From: CHIMNEY ROCK COAL
• To: MLRD
• Media Type: D
• Archive: No

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• CHIMNEY ROCK COAL III ~~~~~~~I~~~~~ ~~~ .R /
105 East Klowa, Suite 200 • Colorado Springs, Colorado • 80903 • [phone]
August 23, 1982 '•`-~` „
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.4~G 2-' 1982
Mr. Fred Banta rPAIP1E~r l ~'~''U ~~ECL,!1~ggTfCiV
Coal Supervisor -' ~~?'.. ~~ `'mural
Mined Land Reclamation Division f~.50C!rc@~
1313 Sherman Street, Room 423
Denver, CO 80203
Re: Chimney Rock Coal Bonding Estimate
Dear Mr. Banta:
The bond estimate enclosed is the result of an investigation
which utilized independent surveys of the current mine and
spoil areas to accurately evaluate material volumes. The use
of numerous cross-sections representing pre-mine, current and
current bonded conditions were used to interpret the survey
data and evaluate a logical state of conditions should
reclamation, pursuant to a bonded condition, be necessary.
The previous use of a worst case situation in which typical
pit cross-sections were used to identify approximate material
volumes is a logical and practical technique which reflects
the true purpose of the bonding requirements. The require-
ment to bond for post-mining conditions is an unsound
practice in that it requires a total swollen volume of
material resulting from the removal of a natural resource.
This swollen volume would not be present without the removal
of the resource, hence bonding for post-mine conditions would
imply the added disturbance associated with a completed
mining operation. Should Chimney Rock Coal cease mining
operations and option to default on the bonded money, the
Mined Land Reclamation Board would use the bond to contract
for reclamation operations, and not the completion of the
mining operation so as to achieve a post-mine contour. It is
thus CRC's opinion that the enclosed bond revision, which
depicts the volume of material to be handled such that a
useful reclaimed contour can exist, is sufficient supporting
evidence to validate our revised bond amount of $126,486.70.
This revised amount is a 15 percent increase over the
original estimate using typical condition criteria.
The procedure used to determine the volumes incorporates the
use of 8 cross-sections approximately 150•feet apart. Pre-
mine and current mine profiles are shown along with the