2016-11-23_PERMIT FILE - C1981019 (2)

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Cultural Resource Site Assessments for Cullom Expansion Project - Cclowyo 3.0 CULTURAL RESOURCE ASSESSMENT METHODOLOGY Tetra Tech conducted the cultural resource site assessments from September 8 through 11, 2015. Mark Karpinski, M.A. served as Principal Investigator and Field Director and supervised all site evaluation work. Jonathan Dugmore, M.A. served as the assisting archaeological field technician. Prior to field work, Colowyo conducted an onsite visit with Tetra Tech to the project area on September 4, 2015. The onsite and field work was completed in good weather conditions with no adverse weather days, rainfall, or snow coverage. The site assessments were accomplished by the field crew using the literature search data, Colowyo provided maps and shapefiles, and a Trimble GPS unit. Each site was assessed per Colorado OAHP state-wide standards. To assess each site, Tetra Tech used the available OAHP original and re -visitation site forms, as applicable, along with the Collom baseline report (Lowe et al. 2006). The reported information on the forms and report were used as baseline data for assessing each site's current condition and composition. Recorded changes in condition included; but were not limited to; new artifacts and/or features, missing artifacts and/or features, significant changes due to new or previously known impacts. Recordation of assessment findings were recorded in the appropriate sections of the Colorado OAHP Cultural Resource Re -Visitation Form. Each form was completed with appropriate attachment supporting forms, maps, and photographs as applicable. Mapping of changes to a site was accomplished using a Trimble GPS. The GPS had real time differential correction to maintain accuracy when recording information during field work. GPS positional accuracy was within 3 meters and the Position Dilution of Precision (PDOP) was less than or equal to six. UTM coordinates were recorded in NAD83, Zone 13 North. The GPS had the site locations uploaded into it prior to field work to assist in relocation. Photographs for general overviews, features, artifacts, and any observed significant changes were taken using a digital camera with seven megapixel resolution. Two of the assessed sites have been evaluated for potential inclusion on the NRHP in accordance to guidelines provided in 36 CFR 60.4. Both sites were assessed for the elements of cultural integrity of location, design, setting, materials, workmanship, feeling, and association. In addition to assessing the elements of integrity, each locality was evaluated for eligibility based on one or more of the following criteria: A) associated with events that have made a significant contribution to the broad patterns of national, state, or local history; B) associated with the lives of persons who have made a significant contribution to national, state, or local history; C) embodies the distinctive characteristics of a type, period, or method of construction, or represent the work of a master, or represents a significant and distinguishable entity whose components may lack individual distinction; and/or D) may be likely to yield information important in the prehistory or history of the nation, state or region. The remaining sites are listed as "Needs Data" and require additional information prior to determination of potential inclusion on the NRNP. The current undertaking does not include the NRHP evaluation of the "Needs Data" sites. Tetra Tech July 25, 2016 For Official Use Only: Disclosure of Site Locations Prohibited (43 CFR 7 1 z3)