The U.S. Army Corps of Engineers Detroit District is seeking firms capable of providing janitorial services at the St. Mary’s Falls Canal in Sault Ste. Marie, MI. The contract will include a one-year base performance period with four optional years, and the solicitation is expected in June 2026. Services must ensure all assigned areas are clean, sanitary, and neat, with no direct government supervision over service providers. The applicable NAICS code is 561720 with a small business size standard of $22.0 million. This is a sources sought notice for market research only, not a solicitation or request for proposals.