The Army Corps of Engineers, Portland District, is seeking a contractor for Oil Sample Testing Services under a Base Year plus four option years. Services will be performed for the Willamette Valley and Rogue Basin Project, with testing conducted per ASTM standards for lube oil content including viscosity, water content, acid number, particle count, and elemental analysis. This requirement is 100% set aside for Small Business. No specific budget amounts or submission timelines are mentioned. The location for performance is not specified beyond the project areas.