This document provides details on a solicitation amendment for construction services to rehabilitate the south unit wastewater system at Badlands National Park. The related federal contract opportunity is solicitation number 140P6324B0001 to provide construction services for the BADL Rehab South Unit Wastewater System. The invitation for bid is being issued by the Department of the Interior National Park Service Midwest Region and seeks bids to rehabilitate the wastewater system serving the south unit of Badlands National Park, including relevant pricing, response dates, and terms. The document appears to be a sign-in sheet for amendment 3 of the solicitation.