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occurrence within Gunnison County. That is, if a species is known to occur within regional proximity <br />. (i.e. in surrounding counties), then the determination was slightly weighted towards the possibility <br />that it may also occur in Gunnison County but has yet to be officially identified and documented. <br />A likelihood determination ranking system was developed for this study ranging from "Some <br />likelihood" to "No likelihood ". Each species was designated a likelihood of onsite occurrence and <br />justification for the determination was explained. The ranking system developed for this study are <br />qualitative and intended for purely informational purposes based on best scientific judgment. The <br />"likelihood" definitions for the ranking system are as follows: <br />Some Likelihood: The project site is within the species' range and onsite habitat, substrate, and <br />elevation is suitable for the species. The species is thought to be more common and /or occurs in a <br />wider range of habitats. <br />Unlikely: Very little possibility that a population previously undocumented in Gunnison County <br />may occur in the project site. Known populations occur in nearby Counties and the <br />habitat/substrate and elevation are substantially appropriate for the species. However, due to <br />species rarity, it remains very unlikely that the species would occur within the project site. <br />Very Unlikely: Either known species populations are not within close regional proximity (i.e. <br />adjacent or nearby Counties), or the habitat/substrate and /or elevation is largely inappropriate for <br />the species. <br />No Likelihood: The appropriate habitat and/or substrate and elevation does not exist on the <br />project site and known occurrences of the species are not within or adjacent to Gunnison County. <br />It is unreasonable to assume any likelihood for species occurrence onsite. <br />6.1.2 Wildlife <br />The final list of wildlife species evaluated for potential presence on the RPE East project site was <br />created by combining both the CDOW list of state - listed species and the USFWS list of federally - <br />listed species, then filtering to include only those species documented by Colorado Division of <br />Wildlife, Natural Diversity Information Source, as known to occur in Gunnison County. Any state <br />and federally - listed wildlife species in Colorado that have not been documented to occur in Gunnison <br />County were not evaluated. Because of the greater pool of knowledge of wildlife species distribution <br />throughout the State of Colorado, as compared to what is known about plants, the wildlife portion of <br />• <br />P:\Mpls \06 CO \26 \06261003 MCC Refuse Pile Site Review & Permit \WorkFiles\Permit Application \Text\2010- 04- 19_RPE East Permit Application.doc25 <br />