AST Facilities - Environmental Reviews - Arecibo Observatory

Arecibo Environmental Impact Statement

In compliance with the National Environmental Policy Act of 1969, as amended, (NEPA) the National Science Foundation is preparing an Environmental Impact Statement (EIS) to evaluate the potential environmental effects of proposed changes to operations at Arecibo Observatory, in Arecibo, Puerto Rico. Consult this website throughout the process to view notices of public meetings, information on how to submit comments, and documents available for review. NSF will also consult under Section 106 of the National Historic Preservation Act (NHPA) to evaluate potential effects to the Arecibo Observatory, which is a historic property listed on the National Register of Historic Places. Project contact information: Elizabeth Pentecost, (703) 292-4907,

Fact Sheet: Arecibo Observatory Review Process
Scoping Process
Draft Environmental Impact Statement
Section 106 of the National Historic Preservation Act (NHPA)
Final Environmental Impact Statement
Record of Decision