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• Soil Pit-Soil Fertilitv-SOOit Oual itv. Soil fertility and spoil quality samples are <br />collected periodically from shallow postmine soil pits which are placed near representative <br />revegetation monitoring sites. The postmine sail pits are also used to evaluate plant <br />rooting characteristics end to compare soil/spoil profile data with site specific <br />revegetation date. <br />Postmine soil pits are placed within reclamation blocks that have been soiled and seeded <br />for a minimum of three years. Similar minimum time frames ere used for monitoring postmine <br />vegetation. The permanent vegetation has generally established sufficiently after three to <br />four years to evaluate interactions between rooting characteristics end soil/spoil quality <br />(Schafer et. al., 1979). <br />No soil or spoil samples were collected near revegetation sampling points during the 1992 <br />field season. Historical soil and spoil quality date for the 1983 through 1988 reclamation <br />blocks are presented and discussed in previous Topsoil and Spoil Monitoring reports or <br />Annual Reclamation reports that have been submitted to CDNG (PCC, 1987, 1989 and 1992). <br />Representative revegetation sites from reclamation years 1989, 1990, and 1991 ere scheduled <br />• to be sampled during the 1994 field season. <br />Spoil Sampling in the Lennox Hiahwall Reduction Area. Peabody is required to sample final <br />graded spoil from the Lennox highwall reducii on area (in the immediate vicinity of Orill <br />Hole Site 2614E) on a 300 foot grid end test for sodium. Exposed sodic strata will either <br />be buried in the final pit or covered with two to three feet of suitable spoil prior to <br />soil replacement. No final grading was completed in the Lennox highwell reduction area <br />during the 1992 field season. Therefore, no spoil samples were collected to determine <br />sodium levels. <br />According to Exhibit 13-2, Reclamation Plan (dated 01/26/93), the remaining 2,000 feet of <br />Lennox highwall in the vicinity of Drill Hole Site 2614E, will be reduced and reclaimed in <br />1998. Spoil samples will be collected from this area once final grading has been <br />completed. <br />wolf Creek Sooil. Peabody is required to sample and analyze final graded spoil from the <br />wolf Creek mining area prior to soil replacement. Spoil is sampled on a 300 foot <br />horizontal grid and tested for pH, acid base potential (ABP), and soil salinity (EC). A <br />• selectively handling suitable spoil topdressing (subsoil) is made prior to soil replacement <br />2 <br />