PUBLIC NOTICE THE AIR FORCE CIVIL ENGINEER CENTER COMPLETED A CERCLA FIVE-YEAR REVIEW OF THE BRAC PORTION OF RICKENBACKER AIR NATIONAL GUARD BASE, COLUMBUS, OHIO

PUBLIC NOTICE THE AIR FORCE CIVIL ENGINEER CENTER COMPLETED A CERCLA FIVE-YEAR REVIEW OF THE BRAC PORTION OF RICKENBACKER AIR NATIONAL GUARD BASE, COLUMBUS, OHIO The Department of the Air Force has finished a review of environmental remediation actions at the Base Realignment and Closure (BRAC) Portion of Rickenbacker Air National Guard Base (ANGB) in Columbus, Ohio. This is the fourth five-year review (FYR) of environmental restoration projects at the former installation. The purpose of the FYR is to confirm that the selected remedies for environmental cleanup sites at the BRAC Portion of Rickenbacker ANGB are functioning as intended and continue to protect public health and the environment. The three sites evaluated were SS021, SS041 and SS042. Environmental remediation actions at the installation are being addressed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, 42 U.S.C. §§ 9601–9675). The FYR cycle is required by CERCLA when remedial actions leave hazardous substances, pollutants, or contaminants at a site that prevent unlimited use and unrestricted exposure. The review includes inspection of the site, review of land use controls (LUCs) and maintenance records, and evaluation of any new, relevant regulatory requirements that have been established since the cleanup decision was finalized. Data reviewed to complete this FYR were collected from January 2018 to March 2025. Based on the results of this FYR for the BRAC Portion of Rickenbacker ANGB, remedies are short-term protective of human health and the environment at Sites SS021, SS041, and SS042. The "short-term protective" designations are due to groundwater contamination extending beyond the LUC boundary in an area with no completed exposure pathways at site SS021, the absence of LUCs in the Installation Development Plan for site SS041, and the need to evaluate the VI pathway for vacant sites SS021, SS041, and SS042 This FYR recommends completion of groundwater delineation at SS021 and extension of the LUC boundary, amendment of the IDP to add LUCs for site SS041, and a determination of whether there is an unacceptable VI risk at Sites SS021, SS041 and SS042. The FYR was completed on September 30, 2025, and is provided for public access on the Air Force's Administrative Record database at: https://ar.cce.af.mil/ Rickenbacker ANGB (BRAC) documents can be accessed by selecting "Rickenbacker ANGB (BRAC)" from the "BRAC Installation List". Once on the administrative record site, navigate as follows: Select the BRAC radial button.From the BRAC "Installation List" on the left, scroll down and select "Rickenbacker ANGB (BRAC)."Click "Search" and select "Show All" search results.Search by AR using the search fields or Ctrl+F in the browser and enter the AR number / document name.To open and view a document, click on the eye icon. If you have any questions or would like more information on the sites under review, please contact: Sean Eldredge BRAC Environmental Coordinator Air Force Civil Engineer Center 2261 Hughes Avenue, Building 171, Suite 155 Joint Base San Antonio – Lackland, TX 78236 The next scheduled FYR for the BRAC Portion of Rickenbacker ANGB will be completed in 2029. February 15 2026 LWOO0454948