B--Model Development and Support CalSim Model Logic 140R2026Q0024

This Sources Sought notice has been amended to update the attachment. Please disregard the previous attachment and acknowledge only the updated document titled "UPDATE A01_12_PWS_CalSimLogic_2026_1." This is NOT a solicitation announcement. This is a Sources Sought notice issued solely for market research and planning purposes. It does not constitute a Request for Quote (RFQ) and does not obligate the Government to award a contract. The Bureau of Reclamation is seeking interested vendors capable of providing support, maintenance, and development services for CalSim 3, the modeling platform used to analyze Central Valley Project (CVP) and State Water Project (SWP) operations as part of the Long-Term Operations consultation. Interested vendors should submit a capability statement that clearly demonstrates experience with: - CalSim 3 or similar water resource modeling platforms - Support and maintenance of complex modeling systems - Development and enhancement of modeling tools for water operations Response should include: - Business name, address, and point of contact - Business size and socio-economic status (e.g., Small Business, 8(a), HUBZone, Woman-Owned, Veteran-Owned, etc.) - Relevant past performance examples NAICS Code: 541690 - Other Scientific and Technical Consulting Services Size Standard: $19.0 million Response Due Date: Wednesday, January 28, 2026, at 1:00 PM Pacific Time Questions and Submissions: Please direct all questions and submit responses to: RaShayla Brown Email: rbrown@usbr.gov Attachments: - A02.12 PWS (Performance Work Statement)

(i)This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Subpart 12, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a written solicitation will not be issued. (ii) Solicitation number 140R2026Q0024 is issued as a request for quote (RFQ). (iii) The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular 2026-01 dated 3/13/2026. (iv) This acquisition is Open Market with no set-aside. The NAICS code is 541690 and the size standard is $19.0 million (v) The contract line items are listed in the price schedule of the solicitation package (see Attachment 1). When providing a quote, please fill in your fully burdened rate for each labor category for each year. Do not change the estimated hours. (vi) The contractor shall provide services to support improvements to operational assumptions within the CalSim 3 model and support the Bureau of Reclamation in related operations analysis, focusing on allocation, export, model efficiency, Cooperating Operations Agreement and Millerton operations logic. (vii) The period of performance is listed in the Price Schedule and the Statement of Work. (viii) The provision 52.212-1, Instructions to OfferorsCommercial Products and Commercial Services, applies to this acquisition. The quote package will consist of the price schedule. (ix) The provision 52.212-2, EvaluationCommercial Products and Commercial Services, does apply to this acquisition. We will conduct a comparative evaluation based on price and past performance. (x) The clause 52.212-4, Contract Terms and ConditionsCommercial Products and Commercial Services, applies to this acquisition. There are not any addenda to this clause. (xi) All additional contract clauses and provisions are included in the attached solicitation package. (xii) The Defense Priorities and Allocations System (DPAS) do not apply to this acquisition. (xiii) Quotes are due by 3:00 PM (Pacific Standard Time) on May 20, 2026 and should be emailed to Sherry Heibeck at sherry_heibeck@ios.doi.gov.