The U.S. Fish and Wildlife Service (USFWS) is seeking qualified contractors to provide professional consulting and engineering services for a Non-time Critical Removal Action at five abandoned mine sites within the Kofa National Wildlife Refuge in Yuma, Arizona. The objective is to develop a comprehensive removal action design to address environmental hazards, specifically targeting hazardous substance releases, including elevated levels of metals such as mercury and lead. This initiative is crucial for restoring and protecting the environment and wildlife habitats affected by historical mining activities. Interested small businesses must submit their responses, including a Unique Entity Identifier and relevant project experience, by February 12, 2025, with the solicitation expected to be released on March 1, 2025. For further inquiries, contact Thomas Ikner at thomas_ikner@fws.gov.