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success were derived from data collected on the Osgood reference area over a ten-year period. <br /> The Osgood reference area itself is no longer needed for comparison upon approval of TR-37. <br /> The reclamation success criteria for species composition are: <br /> o A minimum of four perennial species <br /> o For each species, a relative importance of no more than 40 percent and no less <br /> than three percent. <br /> With the approval of TR-47, one requirement was lifted: the minimum of three warm-season <br /> perennial grass species is no longer necessary. <br /> For this permit, there is no minimum density (stems/acre) standard for woody plant <br /> reestablishment. <br /> XVL Post-mining Land Use -Rule 4.16 <br /> The post-mining land use of rangeland meets the criteria of Rule 4.16.3. The site is classified as <br /> rangeland by the Natural Resources Conservation Service; this is shown on the general soil map <br /> of Weld County, Colorado (Section 2.04.3 of the PAP). In addition, several gas wells have been <br /> installed within the permit area by third parties. These locations have been classified as <br /> industrial land use. The shop area has also been designated as Industrial/Commercial post- <br /> mining land use. <br /> The proposed post-mining land use is compatible with adjacent land use. Demonstrations of <br /> feasibility are not necessary. The proposed use will not present actual or probable hazard to <br /> public health or safety nor pose actual or probable threat of water flow diminution or pollution. <br /> The use will not involve unreasonable delays in reclamation. No measures to prevent or mitigate <br /> adverse effects on fish, wildlife, and related environmental values or threatened or endangered <br /> plants are necessary (PAP, Section 2.05.6 (2)). <br /> XVII. Air Resource Protection -Rule 4.17 <br /> The Colorado Department of Public Health and Environment(CDPHE) administers emission <br /> permits. However, air emission permits for the Keenesburg Strip Mine have been canceled, and <br /> reclamation activities were re-designated to Air Pollution Emission Notice (APEN)required <br /> status. <br /> XVIII. Protection of Fish, Wildlife and Related Environmental Values -Rule 4.18 <br /> 16 <br />