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Cultural Resource Historic Properties Treatment Plan for BK -1-072617 Colowyo Coal Company <br />The report is provided for informational purposes only. Agency comment is welcomed, but further <br />data recovery work will not be suspended until comments have been received. Tetra Tech will <br />initiate the first two site specific data recovery tasks outlined in Section 3.3.2 once testing is <br />completed. <br />3.5.2 Preliminary Data Recovery Results Report <br />Once on-site work has been completed, a preliminary mitigation report will be composed within <br />14 days of the completion of on-site mitigation for OSMRE and OAHP review. The primary report <br />will be a summary technical report listing all data recovery efforts, applied methodology, a <br />summary of recovered data, and preliminary analysis results. OSMRE, DRMS, and OAHP will <br />have 14 days to review and comment on the preliminary report. The purpose of the report will be <br />to provide OSMRE, DRMS, and OAHP a basis for approval that the on-site data recovery efforts <br />have been sufficiently completed and Colowyo can proceed with on-site construction while post - <br />field laboratory analysis and technical reporting is completed. <br />3.5.3 Final Data Recovery Technical Report <br />A professional technical mitigation report will be produced that meets all OSMRE, DRMS, and <br />OAHP standards and requirements. The final technical reporting will be completed within six (6) <br />months of the completion of field work. The report will be organized and scaled as appropriate to <br />most clearly present the information gathered in the field and resulting laboratory analysis. The <br />general report outline will be the following: <br />• Overview of the Project <br />• Historic Context of the Site including Archival Research Results <br />• Review of Research Design <br />• Mitigation Methodology <br />o On -Site <br />o Off -Site <br />• Mitigation Results <br />o Surface Component Documentation <br />o On -Site Excavations <br />o Artifact Review, Discussion, and Analysis <br />• Analysis of All Findings Compared to Research Design <br />• Conclusions and Discussion <br />• Appendices (as appropriate) <br />Additionally, an updated OAHP,site form will be completed for archiving. The report will be the <br />document produced for formal review and acceptance by OSMRE, DRMS, and OAHP. A draft <br />version of the full report will be provided to the agencies for review and comment. Upon receipt <br />of comments, Tetra Tech will produce and submit a final version of the report with appropriate <br />hard and electronic copies. <br />3.5.4 Professional Presentations and Information Dissemination <br />Tetra Tech's cultural resource staff may choose to disseminate the treatment results via oral <br />presentation(s) to the Rocky Mountain Anthropological Society Meetings and/or Colorado <br />Archaeological Society meetings as part of our professional duty to share work with our <br />professional community. <br />Tetra Tech August 8, 2017 14 <br />