PERMFILE103367 - Laserfiche WebLink

Home Browse Search

• • TABLE 2.05.45 LORENCTTO CANYON MINE SUMMARY OF STANDARDS FOR BOND RELEASE Sampling Type Phase II Phase III Grassland Cover 90% confidence interval of 90% confidence interval of Reference Reference Area. Area. Species Diversity Perennial grasses: 2 cool and 1 Perennial grasses: 2 cool and 1 warm warm season. season 5 to 30 percent each. 1 perennial forb. 1 perennial forb of 5% Woody Stem Density No standard for shrub plots. 500 stems per acre for shrub plots. Production No production sampling for this 90% confidence interval of Reference phase. Area. Oak/Pinyon Cover 90% co~dence interval of 90% confidence interval of Reference Reference Area. Area. Species Diversity Perennial grasses: 2 cool and l Perennial grasses: 2 cool and I warn warm season. season 5 to 30 percent each. Shrub component. Shrub component. 1 perennial forb. I perennial forb, 5% Woody Stem Density 500 stems per acre. 500 stems per acre. Production No production sampling for this 90% confidence interval of Reference phase. Area. In Phase III, it will be assumed that, if other revegetation standards are met (cover, shrub density on those areas with a shrub standard, species diversity, and production), utility will also be met. Utility is the ability of the vegetation to regenerate and sustain the post-mining land use. Vegetation and grazing studies during the post-mine liability period will provide the necessary utility demonstrations. Acid- and Toxic-Forming Materials No acid-forming or toxic-forming materials exist within the overburden, soil, or coal seam to be mined at levels which could adversely affect the reclamation activities presented in this permit application. A detailed description of the chemical characteristics of all of these materials is presented under Rules 2.04.6 and 2.04.9. Flammable liquids, such as oil and fuel, will be protected from spilling into adjacent areas by earthen structures surrounding each storage tank. Used grease and oil generated during the mitring 7~-oZ PERMIT.rcv\Fcbwry Il, 199! 2.05-75 (revised 2/13/98)