1992-02-10_GENERAL DOCUMENTS - C1981017 ‎(2)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 2/10/1992
• Doc Name: Bid Documents ‎(IMP)‎
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

00 '
MIO-CONTINENT RESOURCES, INC.
PRODUC IRS OF THE FAMOUS COAL BASIN COKING COAL
1058 COUNTY ROAD 100 • BOX 500
CARBONDALE,COLORADO 81623 RECEIVEU TLX
MAIN OFFICE [phone] 45-0724
DISTRICT OFFICE [phone] FAX
WAREHOUSE [phone] S E P 41990 [phone]
August 30 , 1990 Mined Land
Reclamation Division
Mr. William A. Crick
Reclamation Specialist
Colorado Mined Land Reclamation Division
215 Centennial Bldg .
1313 Sherman Street
Denver, Colorado 80203
Dear Mr. Crick:
Mid-Continent' s approved permit requires the performance of
an annual visual subsidence inspection of the area above the
Coal Basin Mines which could potentially be affected by
ground subsidence (Chapter IV, page 36 ) .
During the subsidence survey performed in 1988 , two cracks
were noted on Huntsma Ridge between the south fork of Coal
Creek on the east and Rock and South Twin Creeks on the
west. Mid-Continent ubmitted a report concerning these
features in a letter dated October 25 , 1988 .
On September 26 , 1989 the area in which the surface cracks
had previously been noted was examined as required.
The area was examined again on August 29 , 1990 , by Tom
Johansen, Chief Engineer, James Reeves, a temporary employee
and Assistant Professor of Geology at the University of
Texas - Permian Basin and myself. Other areas that could
potentially be affected by subsidence were examined as well ,
specifically portions of the surface over longwall panels
102 , 103 , 208 , 210 and 211 ( 103 and 211 are currently-active
panels ) .
A series of breaks in soil cover were noted on the back side
of the ridge near its top at the southeast end of the broad
meadow that extends from the NE1/4SE1/4 , Sec . 18 , T. 10 S. ,
R. 89 W. , to the SW1/4SW1/4 , Sec. 7 , T. 10 S. , R. 89 W.