The Department of Defense, specifically the U.S. Army Corps of Engineers (USACE) Chicago District, is conducting a Market Survey/Sources Sought for the Dutch Gap Aquatic Ecosystem Restoration project in Antioch, Lake County, Illinois. The objective of this procurement is to identify firms capable of providing construction services aimed at restoring aquatic ecosystems, enhancing habitat for migratory birds and local wildlife, and reestablishing native plant communities over a 785-acre area impacted by agricultural practices. The estimated contract value ranges from $5 million to $10 million, with a performance period of five years under NAICS code 237990. Interested small businesses, including HUBZone, 8(a), Woman-Owned, and Service-Disabled Veteran-Owned firms, must submit their responses by March 21, 2025, at 3:30 p.m. Central Time, to Ericka Hillard at ericka.d.hillard@usace.army.mil.