Blanket Purchase Agreement (BPA) to provide custom

The U.S. Geological Survey Office of Acquisitions and Grants seeks to establish multiple Blanket Purchase Agreements for custom chemical concentration mixes to support the Branch of Quality Systems' Organic Blind Sample Project. The procurement requires contractors to provide chemical mixtures with varied compositions and concentrations covering over 800 chemical compounds in low to very low ranges, specifically designed for external performance assessment of the National Water Quality Laboratory's organic analyses in water and sediment samples. The detailed pricing schedule encompasses four distinct mix sets (LS2033, LS2440, LS2447, and LS4437/LS4440) containing approximately 200 unique chemical compounds including pesticides, pharmaceuticals, environmental contaminants, and volatile organic compounds prepared in specialized solvents. The government will use a Best Value-Tradeoff Process for evaluation, with non-price merit factors considered significantly more important than price. Quotes are due by September 12, 2025, and must be submitted electronically via email to the contracting officer.

This solicitation operates under NAICS code 325199 with a small business size standard of 1,250 employees and carries no set-aside designation, making it open to all qualified contractors. The performance period spans from November 1, 2025, to October 31, 2027, structured as two one-year ordering periods with a potential six-month extension that cannot exceed half of Year 2 pricing. Contractors must demonstrate capability to supply the specified analytes, provide competitive turn-around times, and guarantee a minimum one-year expiration date for all chemical products. The chemical mixtures require precise concentration specifications ranging from nanograms to micrograms per milliliter and must be prepared in pesticide-grade solvents including ethyl acetate, methanol, acetonitrile, and Purge & Trap Methanol. The government intends to award multiple BPAs under this solicitation, with each mix set containing 30-70 unique chemical compounds organized into color-coded pricing groups. Amendment 0001 was issued on August 21, 2025, to incorporate the previously omitted Attachment 1 - Pricing Schedule for Chemical Mixes into the original solicitation.