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CalSim Model Development and Application

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10220250State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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The California Department of Water Resources Division of Modeling Support Office is seeking qualified firms to submit a Statement of Qualification for the CalSim Model Development and Application project. The selected contractor will provide specialized engineering services to develop, enhance, and apply various CalSim modeling tools, including CalSim 3, CalLite, CalSimHydro, CS3RimInflow, and the CalSim 3 Historical Hydrology Model. This technical work is designed to support the simulation of Central Valley Project and State Water Project system operations, involving the improvement of the WRIMS simulation engine and the modeling of water use across agricultural, urban, and refuge sectors. Key responsibilities include simulating streamflow and surface runoff from rim watersheds and valley floor areas, as well as supporting the calibration and validation of CalSim 3 surface and groundwater hydrology. The estimated contract value for these services ranges from $1,000,000 to $10,000,000. Interested parties must submit their qualifications by the closing deadline of September 15, 2026, at 2:00 PM. All inquiries regarding the specific requirements and content of this solicitation should be directed to the designated contact at the Department of Water Resources.

General Info

California seeks engineering firms for CalSim model development services valued up to $10,000,000.

Agency

State of CaliforniaView Agency

NAICS

541330 - Engineering ServicesView NAICS

Place of Performance

West Sacramento, CA, 95605, USA

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NONE

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Organization & Contact Information

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AgencyState of California
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State of California
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Full Description

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State of California CalSim Model Development and Application Tender # 10220250 Closing Date : 09/15/2026 at 14:00 PM Contact: Contact: James Tedeschi Phone: 916/803-6196 Email: james.tedeschi@water.ca.gov Details: The Department of Water Resources (DWR), Division of Modeling Support Office, invites qualified firms to submit a Statement of Qualification (SOQ). Contractor will provide engineering services to develop, enhance, and apply the CalSim modeling tools, including CalSim 3, CalLite, CalSimHydro, CS3RimInflow, and the CalSim 3 Historical Hydrology Model (CS3HIST), to support simulation of CVP and SWP system operations and their service areas. This work includes improving and applying the WRIMS simulation engine, modeling water use for agriculture, urban, and refuge needs, and simulating streamflow and surface runoff from rim watersheds and valley floor areas. Contractor will also support calibration and validation of CalSim 3 surface and groundwater hydrology. Estimated Contract Value: $1,000,000 - $10,000,000 Disclaimer: This bid is researched and provided for information purposes only. To participate in this bid opportunity, interested vendors are sometimes required to register on the State of California's website. Please refer to the originating organization for any information relating to this. Direct all queries pertaining to the language, the content or any missing or inaccurate information within this abstract to its originator, as indicated in the advertisement. Note: When you click on the link below, a new window will open to the site where you can locate more information regarding this bid. You may need to search the site to locate the bid. View Bid Information Biddingo.com is not responsible for the contents of the third party site and does not make any representations regarding the content or accuracy of materials on such third party web sites. If you decide to access them, you do so at your own risk.

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