APPCOR13074

• Permit No: C1981047
• IBM Index Class Name: Application Correspondence
• Doc Date: 1/27/1982
• Doc Name: REVISIONS DATED JANUARY 25 1981 TO THE BLUE RIBBON COAL MINE PERMIT APPLICATION FN C-047-81
• From: MLRD
• To: TOM GILLIS
• Media Type: D
• Archive: No

~ ~ III IIIIIIIIIIIIIIII
C ~•p\ 999
i~;~ "" t.Oq,\ DEPARTti1ENT OF NATURAL RESOURCES
~~ ~a.~~~~G: ^ mun,,. tin r. ~,~ F. ~.u n,~• hm~r.rar
r
* ci~_.J:' MINED LAND RECLAMATION DI~~ISION
~~ DAVID C. SHEITON Director
R~chirdD Lamm ,~~ f~`/ ~'~
rlo~rrno' January 27, 1982 ~,,,,,..~~.'~'~`
TO: Tom Gillis J /~ ~~~,
FROM: Roy L. Cox ~~,~. '`
RE: Revisions, dated January 25, 1931, to the Blue Ribbon Coal Mine
Permit Application, File No. C-0;7-81
I have reviewed the revisions submitted on January 25, 1931 by B1uc Ribbon Coal
Company. The follorriny memorandum summarizes the points discussed in a meeting
on January 25, 1982 and in a telephone conversation on Januar!.1 26, I982, both
with Bill Tate of Western Associated Coal Company. These discussions concerned
data and permit materials neer7ed by the Division in makiny permit findings in
geology and hydrology.
C,eolouy
Blue Ribbon Coal Company has submitted a generalizarl ycaloyic map (Exhibit R)
which only covers the surface disturbance area. This map does not adequately
show the geology of the permit and adjacent areas. Blue P,ibbon Coal Company
has committed to submitting a new map reith the site-specific geology after the
snoro melts and field work can be conducted (see legend of Exhibit R). Blue
Ribbon Coal Company has also agreed to plot the croplines of the alluvium in
Hubbard Creek on a new hydrology map. when the Division receives the hydrology
map, there will be sufficient geologic information in the permit to maY.e written
findings. The submittal of the Herr site-specific geology map may ba a stipulation
to the permit.
A Zarger scale and legible geologic cross-suction G-E' wns sub.mi.tted with the new
permit materials. This cross-section should satisfy the re7uirements for
geologic cross-sections.
The roof and floor analyses subrni ttc-d in the pr_rrnit application Lac}:od su]fur-
form analyses (~ total sulfuz-, pyritic sulfur, 'o organic sulfur, and %s sulfate
sulfur), comhnstible soli rls ano iyxs, and textural analyses. The L']uc ti.bbnn
mine is makiny more waste rock from the mine than it can handle by back-stowing,
as original.iy planned. The mine's waste rock is being disposer] of in the Red
Canyon mine's waste rock pile. The company needs to conduct the analyses
mentioned above to rleterrnine the acid-forrruny, a7}:a7.ine-forminrr, comlx~stihility,
anc7 stability effects on placing this material in the Red C..rnyon nu nc's waste
rock pile, or in .any other waste rock pile or fill. The roof and floor samples,
if collected for the same location within the mine, could be analyzed for only
those parameters lister? above and not have to analyze thc:c samples for the
entire list of parameters which the Division requires. 'Phese samples shoulr7 be
collected, analyzed, and submitted soon, so that the pcnnit finding on hydrologic
balance and waste rock disposal piles can be made by the Division.
•~23 Centennial Building. 1313 Shern'~an StrDet Denver. Coloradu 30201 1 DI 13631 Bco-3;41