Model Development & Support CalSim Model Logic

Solicitation / RFP / RFQ

This is a combined synopsis/solicitation for commercial items, specifically for "CalSim 3 Model Logic Development" services. The Bureau of Reclamation intends to award a Labor-Hour Purchase Order for these services. The solicitation constitutes the only official notice; written solicitations will not be issued separately. The requirement is being solicited as a full and open competition and will be awarded using comparative evaluation.

• Support improvements to operational assumptions within the CalSim model.

• Assist the Bureau of Reclamation in related operations analysis, focusing on allocation, export, rescheduling, model efficiency, Cooperating Operations Agreement (COA) considerations, and Millerton operations logic.

• Develop WRESL code, provide interim and final code, and create post-processing scripts.

• Provide project management, meetings, and coordination.

• Support ongoing needs for CalSim model development and operations/modeling staff.

• Manage and document data.

• Deliverables include summaries of progress meetings, invoices, progress reports, WRESL code, post-processing scripts, memorandums, and educational materials.

• Type of Contract: Labor Hour Service Contract.

• Period of Performance: Base Year (June 15, 2026 – June 14, 2027) with 4 Option Years, extending through June 14, 2031.

• Quotes are due by May 20, 2026, at 3:00 pm PDT.

• Quotes must be submitted via electronic mail only, scanned in PDF format, to sherry_heibeck@ios.doi.gov.

• Evaluation will be based on a comparative evaluation to determine the best value, considering the following factors: Technical Approach (PWS approach/understanding and Contractor Experience), Past Performance, Price, and Small Business Participation.

• Offerors must be registered in System for Award Management (SAM.gov).

• This acquisition is being solicited as a full and open competition.

• Department of the Interior goals for various small business categories are listed, including Small Business (45.87%), Socio-Economically Disadvantaged Small Business (5%), Women Owned Small Business (5%), Service-Disabled Veteran Owned Small Business (5%), Historically Underutilized Business District Small Business (3%), and Indian Small Business Economic Enterprise (5%).

• Refer to Attachment 1 for the Price Schedule and Attachment 2 for the Subcontracting Plan Template.

• Offerors must be registered in SAM.gov.

• The solicitation incorporates FAR clauses by reference, including FAR 52.212-1 (Instructions to Offerors) and FAR 52.212-2 (Evaluation Factors).

Form / Attachment / Pricing Sheet

This document is Attachment 1, a Price Schedule for solicitation 140R2026Q0024. It outlines the estimated hours, labor categories, and pricing structure for the base year and four option years of the contract.

• Contract Line Item Numbers (CLINs): Base Year (00010) through Option Year 4 (00050).
• Period of Performance: Each CLIN covers a one-year period, starting from June 15th of the respective year.
• Labor Categories: Includes Principal Engineer, Supervising Engineer, Assistant Engineer, and Administrative Assistant (in Option Year 4).
• Estimated Hours: Provided for each labor category per CLIN.
• Unit of Issue: Hours (Hr.).
• Fully Burdened Labor Rate & Total: These columns are present but show $0.0, indicating that specific rates and totals are to be filled in by the bidder.
• Celling Amount: The overall ceiling amount for the contract is $1,600,000.00.
• Notes:
  1. The "Total Amount Proposed" is the sum of the base and all option years.
  2. Pricing for potential contract extension under FAR 52.217-8 will be calculated at half the amount proposed for Option Year 1.
  3. The grand total for evaluation purposes includes the "total amount proposed" and the "amount calculated under 52.217-8."

Bidders must use this schedule to propose their pricing for each labor category across all contract years. The "Fully Burdened Labor Rate" and "Total" columns need to be completed. This document is critical for proposal preparation and will be used in conjunction with the "Total Amount Proposed" and potential extension costs for evaluation purposes.

Form / Attachment / Pricing Sheet

This document is a template for a Subcontracting Plan, required by FAR 52.219-9. Offerors must submit and negotiate this plan with the Contracting Officer. It outlines how the contractor will provide subcontracting opportunities to small businesses and other disadvantaged groups.

• Type of Plan: Requires selection between Individual, Master, or Commercial Plan, with associated value and sales projections.
• Goals: Specifies percentage and dollar goals for subcontracting to various small business categories (SB, HUBZone SB, SDB, WOSB, VOSB, SDVOSB, ISBEE) for the base contract period and each option period.
• Supplies and Services: Requires identification of principal types of supplies/services to be subcontracted and the types of businesses that will supply them.
• Method for Developing Goals: Explanation of how subcontracting goals were determined.
• Identifying Potential Sources: Methods used to find potential subcontractors (e.g., SAM database, trade associations).
• Indirect Costs: Details on whether indirect costs are included in subcontracting goals and how they are allocated.
• Administration: Identification of the individual responsible for administering the subcontracting plan.
• Equitable Opportunity: Description of efforts to ensure fair competition for small businesses.
• FAR Clause Inclusion: Assurance of including FAR 52.219-8 in subcontracts.
• Reporting Requirements: Commitment to cooperate with studies and submit required reports (ISR/SSR) via SAM.gov.
• Record Maintenance: Description of records to be kept to demonstrate compliance.
• Assurances: Commitment to good faith efforts in subcontracting, providing explanations for failures, allowing subcontractor communication with the contracting officer, and ensuring timely payments to small business subcontractors.

Bidders must complete and submit this plan as part of their proposal. It demonstrates their commitment and strategy for utilizing small businesses. The goals and methods outlined here are critical for evaluating the bidder's approach to small business utilization and compliance with federal regulations. Specific attention should be paid to the goals for various small business categories and the methods for identifying and soliciting these businesses.

Statement of Work (SOW) / Performance Work Statement (PWS)

To acquire contractor services to enhance operational assumptions within the CalSim model and support the Bureau of Reclamation (Reclamation) in related operations analysis. This includes focusing on allocation, export, rescheduling, model efficiency, Cooperating Operations Agreement (COA) considerations, and Millerton operations logic.

• Support the development and ongoing needs of the CalSim model, which simulates monthly operations for the Central Valley Project (CVP) and State Water Project (SWP).

• Implement flexibility in CVP/SWP COA accounting and explore alternative coordinated operations.

• Support current COA implementation and analyze COA balance.

• Improve model efficiency through various means, including cycle structure and simulation of San Joaquin groundwater.

• Redesign logic for Millerton Lake operations and implement CVP operations of the Delta Mendota Canal and Joint Use Branch of the California Aqueduct.

• Create a database of historical water sources, water uses, and data sources for contractors in CalSim.

• Develop post-processing tools for quality assurance, model diagnostics, and system efficiency analysis.

• Provide modeling and training support for Central Valley Operations and the Bay-Delta Office Modeling Division on an as-needed basis.

• Weekly meetings to facilitate progress updates and coordination.

• Regular progress reports (at least quarterly).

• Deliverables (WRESL code, post-processing scripts, spreadsheets, memorandums, educational materials, technical analyses) must be free from technical errors and contain accurate data.

• Logical interpretation of data from resulting products must be possible.

• Base Year: March 1, 2026 – February 28, 2027

• Four Option Years extending through February 28, 2031.

• Work to be performed at the Contractor's facility and other appropriate locations for meetings.

• Time and Materials (T&M) Service Contract.

• Deliverables to be provided via secure online platform (e.g., SharePoint).

• Contractor to provide a secure online platform for Reclamation to access final models.

Statement of Work (SOW) / Performance Work Statement (PWS)

The objective of this contract is to acquire contractor services to support improvements to operational assumptions within the CalSim model and assist the Bureau of Reclamation (Reclamation) in related operations analysis. This includes focusing on allocation, export, rescheduling, model efficiency, Cooperating Operations Agreement (COA) considerations, and Millerton operations logic.

• CalSim Model Development: Support ongoing needs for CalSim model development, including exploring allocation procedures, implementing flexibility in CVP/SWP COA accounting, supporting current COA implementation analysis, improving model efficiency (cycle structure, groundwater simulation, etc.), redesigning Millerton Lake operations logic, implementing CVP operations of the Delta Mendota Canal and Joint Use Branch, and creating a database of historical water sources and uses. Tasks will be prioritized by Reclamation.

• Operations and Modeling Staff Support: Provide modeling and training support to Central Valley Operations and the Bay-Delta Office Modeling Division on an as-needed basis for unforeseen and time-sensitive tasks. This may include CalSim modeling support, educational sessions, technical analyses, data gathering, and review of draft models.

• Project Management, Meetings, and Coordination: Establish and maintain recurring weekly meetings with Reclamation, manage project schedules jointly, and provide progress reports and summaries.

• Data Management and Documentation: Provide final models and documentation for all code developed under this contract by the end of the contract period, including comments within the code and requested memorandums. A secure online platform will be used for access.

• Project Management: 95% of requested meetings, invoices, and progress reports submitted on time.

• CalSim Development & Staff Support: Products should be free from technical errors, contain accurate data, and allow for logical interpretation. Interim WRESL code and post-processing scripts to be available within 2 business days of Reclamation request.

• Data Management: Models and documentation must be accessible to Reclamation and free from technical errors.

• Period of Performance: Base Year (March 1, 2026 – February 28, 2027) plus 4 Option Years (through February 28, 2031).

• Place of Performance: Contractor's facility and other appropriate meeting locations.

• Contract Type: Time and Materials (T&M) Service Contract.

• Deliverables: Progress meeting summaries, invoices, progress reports, WRESL code, post-processing scripts, memorandums, educational materials, technical analyses, and final models/documentation.

• Holidays: Work will not be performed on Federal Government recognized holidays.