The U.S. General Services Administration is seeking proposals for Operation and Mechanical Services, including replacing the drain field with a Forced Septic Line to AX System, at the Piegan Land Port of Entry in Babb, MT. This acquisition is 100% set aside for small businesses under NAICS code 238910, with a size standard of $19.5 million. The period of performance includes a 90-day base period starting on or about October 1, 2026. The solicitation will be directed to local offerors and will not be publicized on SAM.gov. No budget amount is specified.