This document provides details on a federal solicitation for replacement of the Cosby water line at Great Smoky Mountains National Park. The solicitation number is 140P5321R0015 and is being issued by the National Park Service Southeast Region on behalf of Great Smoky Mountains NP. The solicitation seeks to replace approximately 7,500 linear feet of existing 6-inch water distribution line located in the Cosby area of the park. Responses are due by August 11, 2021 and the period of performance is 270 calendar days from award. Small businesses, HUBZone small businesses, service-disabled veteran-owned small businesses, women-owned small businesses, and local firms are encouraged to respond.