REP06027

• Permit No: C1980005
• IBM Index Class Name: Report
• Doc Date: 4/3/1992
• Doc Name: 1991 ANNUAL RECLAMATION REPORT 01/01/91 TO 12/31/91
• Permit Index Doc Type: ANNUAL RECLAMATION REPORT
• Media Type: D
• Archive: No

A two to three foot suitable spoil subsoil topdressing has been used since 1985 [o cover
acid spoil in the Wolf Creek mining area. Limestone amendments have no[ been used to
neutralize the acid spoil.
Sooil Sampling in the Lennox Highwall Reduction Area. Peabody Coal Company is required [o
i
sample final graded spoil from the Lennox highwall reduction area (in the immediate
vicinity of Drill Hole Site 2614E) on a 300 foot grid and test for sodium. Exposed sotlic
strata will either be buried in the final pit or covered with two to three feet of suitable
spoil prior to soil replacement. No final grading uas completed in the Lennox highwall
reduction area during the 1991 field season. iheref or e, no spoil samples were collected to
determine sodium levels.
According to Exhibit 13-2, Reclamation Plan (dated 04/26/90), the remaining 2,000 feet of
Lennox highwall in the vicinity of Drill Hole Site 2614E, will be reduced and reclaimed in
1998. Spoil samples will be collected from this area once final grading has been
completed.
• Wolf Creek
Wolf Creek Sooil. Peabody is required [o sample and analyze final graded spoil
minin
area
rior to soil r
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il i
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horizontal grid and tested for pH, acid base potential (ABP), and soil salinity (EC). A
selectively handling suitable spoil topdressing (subsoil) is made prior to sail re placement
where acid strata (pH <5 and ABP <-5) are encountered. The monitoring program is outlined
on Pages b- 153, 6-153a, 6-164, and 9-40 of the PAP.
Final graded spoil was described and sampled on September 24 and 26, 1991 at 29 sites
located in the Wolf Creek mining area. Spoil pits were excavated with a backhoe to a
depth of 60 inches to expose the upper spoil horizons. Spoil material was described and
sampled to profile depths which exceeded the projected plant rooting zone (about 48
inches). Field soil properties, including color, rock type, rock fragment content
(volumetric), degree of compaction, and texture, were described by using methods presented
in Soil Taxonomy (USDA-SCS, 1975) and Soil Survey Nanual (USDA-SCS, 1951 and 1962)
including revised Chapter 4 - Examination and Description of Soils in the field (USDA-SCS,
June 1981)). Spoil sample increments varied from 1.0 to 4.0 feet based upon visual
differences in color, texture, rock type, and rock fragment content. The sampled spoil
• material was placed in clean, labeled, 4-mil thick polyethylene storage bags and was kept
cool and dry to limit chemical changes. The samples were shipped on September 75 to
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