B--Model Development and Support CalSim Model Logic
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Bureau of Reclamation is conducting a Sources Sought for Model Development and Support for CalSim Model Logic. This market research aims to identify vendors capable of providing support, maintenance, and development services for CalSim 3, a critical modeling platform used to analyze Central Valley Project (CVP) and State Water Project (SWP) operations. Responses are due January 28, 2026.
Scope of Work
The contractor will provide services for the CalSim model, which simulates monthly operations for the CVP and SWP. Key tasks include:
- CalSim Model Development: Support ongoing development, explore allocation procedures, implement flexibility in CVP/SWP Cooperating Operations Agreement (COA) accounting, improve model efficiency (e.g., cycle structure, groundwater simulation), redesign Millerton Lake operations logic, implement CVP operations of the Delta Mendota Canal and Joint Use Branch, and create a database of historical water sources and uses. Tasks will be prioritized by Reclamation.
- Operations and Modeling Staff Support: Provide as-needed modeling and training support to Central Valley Operations and the Bay-Delta Office Modeling Division for unforeseen and time-sensitive tasks, including technical analyses and data gathering.
- Project Management & Coordination: Establish weekly meetings, manage project schedules, and provide progress reports.
- Data Management & Documentation: Provide final models and documentation, including commented code and memorandums, via a secure online platform.
Contract & Timeline
- Type: Sources Sought (Market Research)
- NAICS: 541690 - Other Scientific and Technical Consulting Services ($19.0 million size standard)
- Period of Performance: Base Year (March 1, 2026 – February 28, 2027) plus four option years, extending through February 28, 2031.
- Place of Performance: Contractor's facility and other appropriate meeting locations.
- Response Due: January 28, 2026, at 1:00 PM Pacific Time
- Published: January 14, 2026
- Contact: RaShayla Brown (rbrown@usbr.gov)
Evaluation
This is a Sources Sought notice for market research and planning purposes only. Interested vendors should submit a capability statement demonstrating experience with CalSim 3 or similar water resource modeling platforms, support/maintenance of complex modeling systems, and development/enhancement of modeling tools. Responses should also include business name, address, point of contact, business size, socio-economic status, and relevant past performance examples.
Additional Notes
This is NOT a solicitation announcement and does not obligate the Government to award a contract. The anticipated contract type is Time and Materials (T&M) Service Contract.