ARDL Inc.,* Mount Vernon, Illinois (W912P9-22-D-0001); ESI-ATC JV LLC,* Westland, Michigan (W912P9-22-D-0008); GRK BHATE JV LLC,* Englewood, Colorado (W912P9-22-D-0004); and Pe Ayuda JV LLC,* St. Louis, Missouri (W912P9-22-D-0009), will compete for each order of the $49,500,000 firm-fixed-price contract for environmental consulting services. Bids were solicited via the internet with seven received. Work locations and funding will be determined with each order, with an estimated completion date of April 7, 2027. U.S. Army Corps of Engineers, St. Louis, Missouri, is the contracting activity.