ENFORCE27124

• Permit No: C1994082
• IBM Index Class Name: Enforcement
• Doc Date: 4/21/1997
• Doc Name: YOAST MINE C-94-082 NOV C-96-018
• From: DMG
• To: SENECA COAL CO
• Violation No.: CV1996018
• Media Type: D
• Archive: No

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999
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1317 Sherman 51., Room 215
Denver, ColoraAo 80203
Phone: [phone]
FAX: [phone]
April 21, 1997
•
STATE OF COLORADO
II~~~
DEPARTMENT OF
NATURAL
RESOURCES
Roy Romer
Governor
Mr. Mike Altavilla IamesS Lxhhead
Seneca Coal Company Executive Dueaor
P . O . Drawer D Michael B. Long
Hayden, CO 81639 Division Director
RE: Yoast Mine (C-94-082)
NOV C-96-0`8
Dear Mr. Altavilla:
I am writing to reiterate our phone conversation earlier today,
regarding the abatement and termination of NOV C-96-018. we had
discussed two Questions. which were:
What type of stability demonstration does Seneca Coal
Company (SCC) need to conduct in order to fulfill step
one of the NOV abatement?
What is SCC's long term liability with regard to the
disturbance along Routt County Road 27a, in terms of its
permits with the Division.
In regard to the first question, the NOV abatement written by the
Division requires that SCC provide a reclamation plan for the area
disturbed to facilitate the dragline move which meets the
performance standards of Rule 4.14. In essence, this would require
a demonstration that the cut slope created by SCC has a minimum
static safety factor of 1.3. In order to complete this step of the
abatement, a suitable demonstration prepared by a qualified
registered professional engineer will need to be submitted. The
demonstration should be based on rock properties obtained from the
cut slope, or from a previous drill hole in the same stratigraphy
elsewhere on one of the Seneca mines.