Model Development and Application Service

The Department of Water Resources invites qualified firms to submit Statements of Qualifications for RFQ No. 10220250. The buyer requires an onshore USA organization to provide offsite engineering services that develop, enhance, and apply CalSim modeling tools, including CalSim 3, CalLite, CalSimHydro, CS3RimInflow, and CS3HIST. The scope includes improving and applying the WRIMS simulation engine, modeling water use for agriculture, urban, and refuge needs, simulating streamflow and surface runoff, and supporting surface and groundwater hydrology calibration and validation. The buyer requires questions by August 26, 2026, and mandates attendance at a pre-bid meeting on August 31, 2026. Applicants must submit SOQs by 2:00 p.m. on September 15, 2026. The buyer seeks proposals for the budget and anticipates a three-year contract running from December 3, 2026, through December 2, 2029, with options for up to two one-year amendments. This solicitation may result in multiple awards.