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Baseline Technical Report <br />ARCADIS Report for Soils and Biological <br />Resources, MLE2 Project Area <br />1996, Greystone in 1999, and ARCADIS in 2007. In addition, existing information <br />from past U.S. Fish and Wildlife Service (USFWS) consultation, publically available <br />published /unpublished literature, maps, population data, and any other applicable <br />information were qualitatively evaluated, integrated, and used to develop the <br />baseline description of the survey area's existing wildlife. <br />1.2.1.4 Special Status Species <br />Several literature reviews and field surveys for special status species have been <br />conducted for the mine in the past. However, because species lists are frequently <br />updated, ARCADIS reviewed recent publically available literature to determine which <br />currently listed special status species have potential to occur in the survey area. <br />ARCADIS first conducted a literature search for federally listed TECS. TECS are <br />identified by the USFWS under the provisions of the Endangered Species Act of <br />1973, as amended. The website for the USFWS was queried for a list of TECS that <br />have potential to occur in the District/Teller County (USFWS 2010). CDOW maintains <br />a state list of threatened and endangered wildlife species and also lists some wildlife <br />species with declining populations as 'species of special concern.' The website for <br />CDOW was queried to determine state - listed threatened, endangered, and species <br />of concern that have potential to occur in the survey area. In addition, the Colorado <br />Natural Heritage Program (CNHP) maintains a list of rare plant species for the state, <br />which includes rare plant species as listed by the U.S. Forest Service (USFS) and <br />Bureau of Land Management (BLM) (CNHP 2011). The potential for any special <br />status species to occur in the survey area was based on habitat suitability in the <br />survey area. <br />1.2.2 Phase II — Collect Baseline Data <br />Once all existing baseline information was compiled, ARCADIS conducted field <br />surveys and inventories from July 19 to 21, 2011 to verify and update the existing <br />information in the survey area, as appropriate. Field surveys and inventories <br />included: <br />• Soil profile investigations and soil mapping, <br />• Vegetation mapping (map and characterize vegetation community types in <br />the survey area), <br />Raptor nest survey, <br />CCV Baseline Soils Biology Resource Report (11- 17- 11).doc 4 <br />