The U.S. Army Corps of Engineers, Kansas City District, has a need for Herbicide Application services at its Wilson Lake Project Office in Sylvan Grove, Kansas. A performance work statement with more ... The U.S. Army Corps of Engineers, Kansas City District, has a need for Herbicide Application services at its Wilson Lake Project Office in Sylvan Grove, Kansas. A performance work statement with more details about the services is included with this combined synopsis/solicitation.