APPCOR12299

• Permit No: C1981047
• IBM Index Class Name: Application Correspondence
• Doc Date: 3/5/1981
• From: OSM
• To: US STEEL CORP SUNFLOWER ENERGY CORP
• Media Type: D
• Archive: No

Attachment
Stipulations
Attached to Office of Surface Mining Approval
of Minor Modification to Coal Mining and Reclamation Plan
for United States Steel Corporation's Somerset Mine
(Sunflower Energy Corporation-Operator)
Federal Coal Lease C-033301 (E-Seam)
1. Under [his approval, Sunflower Energy Corporation shall undertake no
additional surface disturbance associated with the Blue Rihbon Mine (except
Eor mitigation of identified cultural resources, implementation of Che
subsidence monitoring network, and necessary hydrologic monitoring).
2. Under this approval, Sunflower Energy Corporation shall no[ increase the
monthly rate of coal production above the highest monthly production rate
achieved in 1980 at the Blue Ribbon Mine.
3. If cultural materials are located during Che survey to he conducted by [he
Office of Surface Mining (OSM), Chey will be recorded by OSM and documentation
will be turned over to Sunflower Energy Corporation (SEC). Upon receiving the
completed forms, SEC will, within 50 days, in conjunction with OS M, the I1,$.
Forest Service, and State Historic Preservation Officer (SHPO), evaluate and
prepare National Register forms for the determination of National Register
eligibility. Additionally, regarding sites threatened by potential
subsidence, it is the responsibility of SEC to formulate, within 90 days of
receiving the OSPt survey form, a mitigation plan acceptable to the above
agencies and Che Advisory Council on Historic Preservation. Preservation
and/or mitigation of impacted cultural resources is the responsibility of SF,C.
4. If, during mining operations, previously unidentified cultural resources
should be discovered, Sunflower Energy Corporation (SEC) shall insure Chat the
site is not disturbed and shall immediately cease land disturbing activities
within the vicinity of the site and notify the Regulatory Authorities. SEC
shall ensure [ha[ the resource(s) is properly evaluated in terms of [he
National Register (3h CFR 60.6). Should a resource be determined eligible for
listing in the National Repis[er of Historic Places in consultation with the
Regulatory Authorities and the SHPO, SEC shall consult with and obtain the
aPProv al of the Regulatory Authorities and the SHPO concerning the development
and implementation of mitigation measures as appropriate. Activities shall
not resume until these measures have been completed and approved.
5. Within 45 days of written acceptance of [his approval by Sunflower Energy
Corporation (SEC), SEC shall submit to the Regulatory Authorities for approval
a detailed subsidence monitoring plan to detect effects to the surface which
may result from subsidence. Prior to implementation of the approved
monitoring system, SEC shall not engage in the removal of pillars in Section
35, T. 12 S., R. 91 W. In addition, within 45 days of written acceptance of
this approval, SEC shall submit to the Regulatory Authorities a detailed
analysis of [he extent and anticipated effects of subsidence, a description of