The U.S. Geological Survey requires a Brand Name BioSonics DT-X Extreme autonomous echo sounder system with specific transducers and a rotator. This opportunity is set aside for small businesses under NAICS code 334511. Award will be made to the lowest-priced, technically acceptable offeror who provides complete technical documentation. Offerors must be registered in SAM and include their Unique Entity ID with their quote. Specific delivery dates and performance location will be provided in the attached solicitation.