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• blocks was 1.0 feet at Sites 7 and 2 along Haul Roed A end 7.5 feet at Site 3. Soil was <br />replaced et a shallower thickness elonB Haul Roed A because the soil overlies undisturbed <br />subsoil. The minimum mean soil replacement thickness for the first permit term is 1.3 <br />feet. <br />Spoil Semolina in the Lennox Coal Outcrop Area. No final grading was completed in the <br />Lennox Coal outcrop area during the 1992 field season. Therefore, no spoil samples were <br />collected to determine acidity levels end clay percentages pursuant to Permit C-82-057, <br />Teb 21, Page 4. <br />According to Exhibit 19-1, Reclamation Schedule (dated 06121)92) and Exhibit b-6, <br />Overburden Coal Hole Location Mep (dated 04/19/91) from Permit C-82-057, the first Lennox <br />Coal outcrop area will be graded end reclaimed in 7994. Spoil samples will be collected <br />from this area once final grading has been initiated. <br />Soil Pit-SOiI Fertility-Reveaetation Monitoring. Shallow postmine soil pits are <br />excavated periodically near representative revegetetion monitoring sites to evaluate <br />• plant rooting characteristics, determine soil fertility, ensure spoil suitability, end <br />compare soil/spoil data with site-specific revegetetion data. The pits are selected <br />using a rate of one pit per 25 acres of reclamation. Postmine soil pits ere placed within <br />reclamation blocks that have been soiled and seeded for a minimum of three years. <br />Similar minimum time frames are used for monitoring postmine vegetation. The permanent <br />vegetation has generally established sufficiently after three to four years to evaluate <br />interactions between rooting depths end soil/spoil quality (Schafer et el., 7979). <br />No soil or spoil samples were collected from shallow postmine soil pits during the 7992 <br />field season. According to the Reclamation Schedule, Exhibit 79-7, from Permit C-82-057, <br />the first 25 acres of permanent reclamation will not be completed until 7994. Therefore, <br />sampling from shallow postmine soil pits will not be initiated until the 1997 or 1998 <br />field seasons. <br />Soil Reol acement Technique. The one soil replacement area for the 1992 field season is <br />shown on Exhibit 92.2, 1992 Soil Balance Nap. Soil replaced on the 1.7 acres of final <br />graded slopes in the lower block boxcut area was direct hauled. Field measurement on <br />• October 74, 1992 showed soil thickness to be too thin. Additional soil will be replaced <br />in this block during 7993. <br />3 <br />