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Permit Findings Document, "The study indicated that revegetation <br />success standards could be met with soil cover greater than 12 <br />inches. The study also showed that revegetation standards could <br />be met with a soil cover 6-12 inches if the aspen woodland reveg- <br />etation success standard was used. This is appropriate for most <br />if not all the old refuse pile since the adjacent vegetation type <br />is primarily aspen woodland. <br />The slopes of the old refuse pile are primarily north facing <br />with some east facing slopes. Therefore, the applicant should be <br />able to meet revegetation success standards on the east facing <br />and north facing slopes of the new refuse pile, based on the <br />• previous study. On the west facing slopes the applicant proposes <br />~ to replace 18-24 inches of topsoil and 24-30 inches on the south <br />facing slopes. Additional topsoil was felt to be needed on the <br />west and south aspects since these slopes are more xeric than the <br />north and east facing slopes. Based on the previous mentioned <br />study it would be expected that the applicant .would be able to <br />meet revegetation success standards on the south and west facing <br />slopes, but the applicant must verify this by conducting periodic <br />revegetation monitoring." <br />3.2 Powderhorn Coal <br />Powderhorn Coal Company, near Grand Junction, Colorado, <br />• previously mined 800,000 tons of steam coal annually at the <br />3-5 <br />