The United States Army Corps of Engineers (USACE), Seattle District, is seeking a vendor to provide phytoplankton analytical services to support the water quality sampling program at several dams. The contract will be a non-personal services contract, and the government will not exercise supervision or control over the contract service providers. The estimated solicitation posting date is on or around 04 March 2026. • The contract is for a firm-fixed price award. • The government intends to award this requirement as a 100% small business set aside. • The contract service providers will be accountable solely to the contractor, who is responsible to the government. • Vendors can provide supporting documents demonstrating their capabilities and specifications to the contract specialist at tyler.j.luke@usace.army.mil.