T-Mobile is proposing modifications and additions to telecommunications antennas and associated equipment collocated inside the bell tower of a building located at an address 2097 Turk Boulevard, San Francisco, San Francisco County, CA 94109 (Latitude 37° 46' 44.25" N, Longitude 122° 26' 36.88 W). Eocene Environmental Group is publishing this notice in accordance with Federal Communications Commission regulations (47 CFR § 1.1307) for Section 106 of the National Historic Preservation Act (NHPA) and for the National Environmental Policy Act (NEPA). Parties interested in commenting on this Federal undertaking or with questions on the facility should contact Eocene, Attn: Telecommunications Department, 5930 Grand Avenue, West Des Moines, IA 50131 or call 515-473-6256 (Ref. TMO CA #2247-AM).