This Single Award Task Order Contract will be in support of work assigned to the U.S. Army Corps of Engineers (USACE) Northwestern Division (NWD). In executing investigation and remediation of hazardous waste, toxic waste, navigational, and dredging projects for both civilian and military agencies of the Federal Government, the USACE NWD has need for an analytical laboratory to provide chemical analysis for a range of matrices (e.g., soil, water, sediment, tissue, and air). Sample collection is outside the scope of this contract. The contract will support existing and future USACE customers within the USACE NWD covering, but not limited to, the following states: California, Colorado, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota, Washington, Wisconsin, and Wyoming.