Purchase Order 140R2026P0053
- Not listed
- The U.S. Bureau of Reclamation awarded MBK Engineers a purchase order valued at $694,720.50 to develop and support CalSim model logic, a critical water allocation tool used for Central Valley Project operations. Issued on April 21, 2023, the contract requires MBK Engineers to improve operational assumptions within the CalSim hydrologic model, including exploring Central Valley Project allocations and export capabilities, implementing flexibility in CVP/State Water Project accounting,...
- MBK Engineers was awarded a $295,350 firm-fixed-price purchase order by the Department of the Interior's Bureau of Reclamation to provide water management and technical support services for the Riverarc Water Management Operations Pilot project. The solicitation sought quotes to perform seven tasks over a two-year period including study coordination, modeling water operations using CalSim 3.0, evaluating alternatives, and preparing reports. This small business set-aside contract supports the...
- The Bureau of Reclamation awarded a $2 million purchase order to Stantec Consulting Services Inc. for CalSim 3 development support, with work performed in Sacramento, California. This modification extends the period of performance through July 31, 2026 at no additional cost. CalSim 3 is the Bureau's comprehensive hydrological simulation model used to evaluate water management scenarios across California's complex water systems. Under the contract, Stantec provides development support services...
- The U.S. Bureau of Reclamation awarded a $4.93 million firm fixed-price purchase order to MBK Engineers, a Sacramento-based environmental consulting and hydrologic modeling firm, on March 1, 2024, to provide environmental consulting services for the analysis of California's north-to-south water transfer system to support dry and drought condition activities throughout the state. This total small business set-aside contract, which includes in-scope add work and a time extension, is scheduled...
- The U.S. Bureau of Reclamation, a civilian agency within the Department of the Interior, has awarded a $156,671.25 time and materials contract to MBK Engineers, a small disadvantaged business, for exploratory modeling services related to water storage projects. This contract was awarded under a pre-solicitation for modeling analysis to refine potential benefits from the Los Vaqueros Expansion Phase 2 project. MBK Engineers will develop new modeling scenarios using the CalSim2 hydrological...
- The Bureau of Reclamation awarded a $2.47 million firm fixed price purchase order to MBK Engineers, a Sacramento-based small disadvantaged business, for hydrologic modeling and analysis services supporting the Klamath Project Biological Assessment and Biological Opinions. Under this total small business set-aside contract, MBK Engineers will provide daily hydrologic operations modeling, develop analytical procedures and tools, conduct compliance assessments, and coordinate with stakeholders to...
- The Bureau of Reclamation awarded a purchase order to MBK Engineers, a small disadvantaged business, for $2,580,000 on September 21, 2025. The work involves hydrologic modeling and forecasting to support the Klamath Project Biological Assessment and Opinion, including analysis of carry-over water storage in Upper Klamath Lake, stream inflows into the watershed system, and hydrological changes resulting from the removal of four hydroelectric dams. Performance takes place in Klamath Falls, Oregon,...
- The U.S. Bureau of Reclamation awarded a $249,328.50 firm fixed-price delivery order to Jacobs Engineering Group Inc. under its Multiple Award Schedule contract for the CALSIM3 Climate Change Input Modernization Project. This delivery order, issued on August 22, 2022, represents a de-obligation and closeout action for the BDO CALSIM Climate Change Modeling work and is scheduled for ultimate completion by August 31, 2025. The work will be performed in Sacramento, California, supporting the...
- The Department of the Interior Bureau of Reclamation awarded a $7,366,255.11 firm fixed-price purchase order to Watercourse Engineering, Inc., a HUBZone-certified small disadvantaged business, to develop a temperature modeling system within the CEQUAL-W2 modeling platform for the Central Valley Operations Office. The project involves developing physical models of individual reservoirs in three California river systems and establishing downstream linkages and applications for planning,...
- This firm fixed-price purchase order, awarded by the U.S. Bureau of Reclamation to Stantec Consulting Services Inc., provides technical support services for the Sacramento Regional Water Bank Water Management Operations Pilot project. The $499,951.53 contract tasks Stantec with project management, refining the CalSim 3 operational model, developing water bank operational scenarios, and producing associated deliverables over a performance period from March 2022 through March 2024. Stantec has...
The Bureau of Reclamation awarded a purchase order to MBK Engineers on June 15, 2026, for CalSim 3 model development and operations analysis, with a ceiling value of $1,597,843 and an ultimate completion date of June 14, 2031. No set-aside was used. MBK Engineers is a self-certified small disadvantaged business. Work is performed in Sacramento, California. The order funds labor-hour services supporting CalSim 3, the water resource modeling platform used to analyze Central Valley Project and State Water Project operations. Deliverables include project management, model development, data management, WRESL code development, post-processing tools, and operations support. The underlying opportunity was posted as a Sources Sought notice on January 14, 2026, under NAICS 541690 (Other Scientific and Technical Consulting Services).
Name | Description | Solicitation Number | FederalAgency | Type | PostedDate |
|---|---|---|---|---|---|
CalSim 3 Model Development & Operations Analysis | 140R2026Q0024 | Department of the Interior Bureau of Reclamation | Award Notice 3/3 | 6/11/26, 5:36 PM | |
Model Development and Support CalSim Model Logic | 140R2026Q0024 | Department of the Interior Bureau of Reclamation | Pre-Solicitation 1/3 | 1/14/26, 11:45 AM | |
Model Development & Support CalSim Model Logic | 140R2026Q0024 | Department of the Interior Bureau of Reclamation | Solicitation 2/3 | 4/29/26, 8:05 PM |
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | Not listed | $330.9k | 6/10/26 |