2023-01-09_REVISION - C1981019 (2)

Home Browse Search

Ic"I �. History Colorado Zach Trujillo Environmental Protection Specialist Division of Reclamation, Mining, and Safety 1313 Sherman Street, Room 215 Denver, CO 80203 RE: Colowyo Coal Mine (Permit No. C-1981-019) Technical Revision No. 158 (TR-158), TR-158 Final East Pit Ditch Watershed Revision(HC4 67752) Dear Mr. Trujillo, Thank you for your correspondence received by our office on January 5, 2023 requesting the review of the above referenced undertaking under Section 106 of the National Historic Preservation Act(NHPA) and its implementing regulations 36 CFR Part 800. In accordance with the 1991 Memorandum of Understanding (MOU)between our agencies,because the technical revision may incorporate additional lands into the permit area or might otherwise alter previously approved permit conditions or mitigation measures, concurrence between our agencies is required due to the potential for impacts to cultural and/or historic resources. A review of orthoimagery shows that the proposed project locations have previously been disturbed. Based on the documentation provided,we find that a finding of no adverse effect [36 CFR 800.5(d)(1)] to historic properties is appropriate for the subject undertaking. Should the consulted-upon scope of the work change,please contact our office for continued consultation under Section 106 of the NHPA. Also, should unidentified archaeological resources be discovered in the course of the project,work must be interrupted until the resources have been evaluated in terms of the National Register eligibility criteria(36 CFR 60.4) in consultation with our office pursuant to 36 CFR 800.13. We request being involved in the consultation process with the local government,which as stipulated in 36 CFR 800.3 is required to be notified of the undertaking, and with other consulting parties. Additional information provided by the local government or consulting parties might cause our office to re-evaluate our eligibility and potential effect findings. Please note that our compliance letter does not end the 30-day review period provided to other consulting parties. Thank you for the opportunity to comment. If you have any questions,please contact Matthew Marques, Section 106 Compliance Manager, at(303) 866-4678, or matthew.marques(a state.co.us. Sincerely, Patrick A. Eidman Digitally signed by Patrick A. Eidman Date: 2023.01.06 11:23:33 -07'00' Dawn DiPrince State Historic Preservation Officer