REP22435

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 4/1/1994
• Doc Name: 2ND HALF 1993 SUBSIDENCE REPORT PN C-82-056
• From: TWENTYMILE COAL CO
• To: DMG
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

~-~ Twentymile Coal Company
An Aililliafe of
Cypnrs Yampa galley Coal Corpaa6on
March 27, 1994
Kent Gorham
Environmental Protection Specialist
Division of Minerals and Geology
Office of Mined Land Reclamation
1313 Sherman Street, Room 215
Denver, Colorado 80203
RE:2nd Half 1993 Subsidence Report
Permit No. C-82-056
Dear Mr. Gorham:
III IIIIIIIIIIIII III
sss
29515 Roult County Road iF27
Oak Creek. CO 80467
Phone [phone]
RErF1`J~D
APR 0 i 1994
Ci:'isi:;n Ci rmiidid~a a vccr,;crv
Attached, please find three copies of cross-sections A through F
which are to be inserted into the above referenced previously
submitted report. The cross-sections should be inserted after
Figure 1 located in section 3, Fish Creek AVF. The cross-section
location map can be found in the permit document and is identified
as Fish Creek AVF Study, Subsidence Impact on Hydrology, Map 1.
The text of section 3 has been modified to reflect the
incorporation of the cross-section information and to update the
vegetation section with table 57. Three copies of the text and
table 57 have been attached and should be inserted into the report.
Please discard the original section 3 text.
Finally, as per your request three copies of the subsidence data
for the period is enclosed and should be inserted as Appendix A to
section 1 of the reports.
I look forward to receiving your comments on the report.
Sincerely, ,
~~~0' /~i~~W~i
Richard Mills
Manager, Surface/Environment
attachments
c~~us