REP12188

• Permit No: C1981008
• IBM Index Class Name: Report
• Doc Date: 1/1/1992
• Doc Name: 1991 ANNUAL RECLAMATION REPORT
• Permit Index Doc Type: ANNUAL RECLAMATION REPORT
• Media Type: D
• Archive: No

• 1991-1992 ANNUAL RECLANATION REPORT
Existino Disturbance
During 1991 and 1992, 2.6 acres of new disturbance was associated with the highwall reduction
in the Pit 1 Reclamation area. The Annual Reclamation Map, Exhibit 92.T and Soil and Spoil
Monitoring Map, Exhibit 92.2, show existing disturbance areas es of June 15, 7992. Exhibit
92.1 shows where permanent seeding must still 6e completed in Area 1 while Exhibit 92.2
depicts areas of existing disturbance associated with remaining facilities (shop, pond, roads,
stockpiles) at Nucla Mine. These areas will be reclaimed over the bond liability period.
Bac kfilling and Gradinc
The Annual Reclamation Mep, Exhibit 92.1, shows final graded reclamation contours as of April
3, 1992. During 1991 and 1992, 66.8 acres were graded in the Pit 1 reclamation area. Grading
was accomplished by using a combination of scrapers end dozers. Cross sections were generated
to compere the graded area with the proposed topography. Existing topography cross sections
A-A', B-8', C-C', D-D', end E-E' (Exhibits 92.4 and 92.5) compere the existing graded areas
with the proposed postmining topography.
• Soil and Sooil Scarification
The following soil and spoil scarification techniques were used while grading the Pit 1
reclamation area. Prior to soil replacement, the final graded spoil was scarified to a depth
of 12 to 18 inches using ripper shanks attached behind a motor grader. Subsequently, soiled
areas in the eastern half of the reclaimed area were disced on the contour. The soiled areas
in the western portion were scarified using a D9 dozer with a single ripper shank. These
scarifying operations effectively reduce compaction, reduce runoff, end improve infiltration,
while improving rooting depths and reclaimed plant community development.
Soil and Spoil Monitoring Data
Peabody Coal Company is required by Permit C-81-008 to monitor replaced soil end final graded
spoil at Nucla Mine and submit the information to the Division by April 15 of each year,
Nonitoring programs include verifying soil replacement thickness, determining final graded
spoil quality, determining soil fertility, and completing en annual soil balance. Peabody is
submitting this information with the Annual Reclamation Report es recommended by Section
2.04.13(2) of Colorado's Regulations for Coal Mining. The following soil and spoil quality
• information is presented for the 1991 through June 1992 period.
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