Chemical Analysis for Plant and Soil Samples

The United States Department of Agriculture (USDA), Agricultural Research Service (ARS), Plains Area, is soliciting quotations for chemical analysis services of plant and soil samples collected during the 2025 growing season of the Manure Priming Project research study. The requirement includes comprehensive analysis of 192 dried and ground plant samples and 256 dried but not ground soil samples using specific reference methods to measure parameters including moisture content, pH, electrical conductivity, nitrogen forms, phosphorus, extractable elements, organic matter, fiber content, ash, crude protein, nitrate, chloride, and mineral composition. The government intends to award on a single-source basis, though all timely responses will be considered at the government's discretion. Evaluation will be based on lowest price technically acceptable criteria, with technical acceptability, past performance, and price reasonableness assessed. The offeror must provide an active SAM.gov registration, acknowledge any solicitation amendments, include pricing for all line items, and submit a technical package demonstrating capability and management approach. Questions are due by April 14, 2026 at 4:00 PM Central Time, and quotation responses are due by April 20, 2026 at 4:00 PM Central Time.

This is an unrestricted acquisition with no set-aside designation, and the solicitation has identified Servi-Tech Laboratories (6921 Bell Street, Amarillo, TX 79109) as the proposed sole-source vendor. The contract is a firm-fixed price requirements contract under NAICS code 541620 (Testing Laboratories) with a $19 million size standard. The contractor must deliver results within 30 days of sample receipt, with performance incentives allowing for 15% rate reduction for 35-45 day delivery or 30% reduction for delivery after 45 days. The laboratory must employ all required personnel and use the same laboratory, methods, and in-house protocols previously established to ensure research continuity and control statistical error rates. The place of performance is the Conservation and Production Research Laboratory in Bushland, Texas 79012, with payment and contract administration handled by the USDA ARS Acquisition and Property Division in Beltsville, Maryland.