The U.S. Geological Survey requires an indefinite quantity contract for stream gauging hydrological equipment, with delivery to Tuscaloosa, Alabama. The contract period of performance is from September 13, 2026, to September 12, 2031, with no option periods. This is a full and open solicitation with no small business set-aside, and the NAICS code is 334513 with a 750-employee size standard. Vendors must be registered in SAM.gov to be eligible for award. The anticipated award date is August 19, 2026.