The U.S. Fish and Wildlife Service seeks a contractor to replace and overhaul the existing water main system at Modoc National Wildlife Refuge in Alturas, California. The project includes installing a new shutoff system for improved water control and service access. The estimated construction budget is between $50,000 and $65,000. Performance is anticipated from July 1, 2026, through November 1, 2026. This opportunity is a total small business set-aside.