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RULE 2 PERMITS <br />_... ~. -, _ ... ,.w <br />• NRCS soils map information <br />and is presented on Map SA, <br />provided in Exhibit 9, Item 5. <br />map symbol identifications. <br />2.04.9-4. <br />within the South Taylor/Lower Wilson permit revision area was reviewed <br />Order III Soils. NRCS soil map units were identified in the azea and aze <br />The information provides antiquated series names and updated NRCS field <br />Present and potential productivity of the soil units are provided in Table <br />Generally, the map unit boundaries from the unpublished NRCS soils maps for Moffat County match <br />with those for the Rio Blanco County soils maps. To the west of the existing permit area, the mapping <br />unit boundaries from the two soil surveys match at the county line. However, the soil map unit names are <br />different for each county. These differences are the result of changes in the NRCS soil classification <br />system from 1982 (when the Rio Blanco survey was published) to 1998 when the Moffat County maps <br />were made available to the public. <br />Order II Soil Survey - Sout/i Taylor Mining Area <br />This section presents data assembled, collected, and analyzed specifically for the South Taylor mining <br />area. <br />General Soils Resource Information -The identification and proper management of soil resources in <br />the mining azea is essential for the success of reclamation of any future disturbed areas and the <br />achievement of the post-mining land use. The objective of this section is to meet the requirements of <br />Rule 2,04.9 et seq. by furnishing soils information for the mining azea in sufficient detail to determine the <br />following: <br />• 1) General distribution, properties and present and potential productivity of soils within the South <br />Taylor/Lower Wilson affected areas; <br />2) Distribution, suitability, and average salvage depths of soils within the disturbed azea associated <br />with the South Taylor mining area; and, <br />3) Quantity of salvageable suitable soil material for use in the reclamation of the disturbed azea <br />associated with the South Taylor mining area. <br />Detailed Soils Resource Information -The site-specific soils resource information described below <br />pertains to the proposed disturbed area associated with the South Taylor mining azea shown on Map SB. <br />Detailed soils information was collected to determine the spatial distribution, suitability, salvage depths <br />and volume of soils available within the disturbed area associated with the South Taylor mining area. In <br />addition, the mass balance in salvageable soil materials were calculated to assure an adequate supply of <br />suitable soil would be available for reclamation of the surface disturbance associated with the South <br />Taylor mining area. The results of the mass balance analysis are presented in Table 2.04.9-7, Topsoil <br />Mass $alance -South Taylor Mine Area. <br />A previous soils inventory which encompassed the majority of the disturbed area associated with the <br />South Taylor mining area was performed by Consolidation Coal Company (CCC, 1984). The CCC soil <br />inventory report includes soil series and map unit descriptions, soil map unit boundary delineations, <br />physicochemical properties, and recommended soil salvage depths within the South Taylor mining azea, <br />with the exception of the southern portions of T3N, R93W Section 16 and 17. A copy of the Soil <br />Inventory Danforth Hills Project Rio Blanco & Moffat Counties is included in Volume 13, Exhibit 9, Item <br />7. Soils information presented in the existing permit document were used for the portions of T3N, R93 W <br />• Section 16 and 17 that were not included in the CCC report. <br />South Taylor/Lower Wilson -Rule 2, Page 50 Revision Date: 4/4/07 <br />Revision No.: PR-02 <br />