The U.S. Army Corps of Engineers, Kansas City District is establishing a competitive, total small business set-aside Multiple Award Task Order Contract (MATOC) for Environmental Remediation Services, supporting the Northwestern Division and EPA Region 2. The contract covers a broad scope including in-situ remediation, groundwater treatment plant O&M, field investigations, remedial design, and long-term monitoring among many environmental services. The solicitation will be available no earlier than 15 days after this presolicitation notice. No specific budget amounts are indicated in this notice. Performance locations support USACE Northwestern Division and EPA Region 2 areas.