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Delta Conveyance Project

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State & Local

Contract Overview

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

AI Contract Overview

The Delta Conveyance Project, managed by the California Department of Water Resources, is a major infrastructure initiative aimed at improving water reliability and ecosystem health in the Sacramento-San Joaquin Delta through the construction and operation of new conveyance facilities. The project has undergone extensive environmental review under the California Environmental Quality Act, with the Final Environmental Impact Report certified in December 2023, followed by two approved addendums in February 2025 and August 2025 that evaluated design refinements and updated information without triggering the need for a supplemental or subsequent EIR. Key technical refinements include adjustments to the intake structure, tunnel profile and shaft dimensions, below-ground pumping plant configuration, surge basin slab design, and Bethany Reservoir aqueduct dimensions, all supporting preconstruction activities up to 30% design completion between 2025 and 2029. The Department of Conservation, as a responsible agency, formally adopted findings in June 2026 confirming that the addendums did not result in substantial changes to previously assessed environmental impacts and that no additional mitigation or alternatives are required. Project activities encompass land-based soil borings and cone penetration testing to support design, along with full compliance with the 2024–2026 Preconstruction Field Investigations Environmental Compliance Plan. The project is identified under NAICS code 541620, with a posting date of July 2, 2026, and is located entirely within California, though specific contract value, pricing, delivery schedules, or formal solicitation details are not available in the provided documentation. Point of contact for program management is Marcus Yee, with Graham Bradner serving as the Executive Director for the Department of Conservation.

General Info

California’s Delta Conveyance Project refines design for water reliability and ecology without expanding footprint, approved via EIR addenda in 2023–2025.

Agency

California Water Resources, Department of

NAICS

541620 - Environmental Consulting ServicesView NAICS

Place of Performance

Set-Aside

NONE

Documents

(5)

Delta Conveyance Project Second Addendum to Final EIR Notice of Determination

PDF•notice-of-determination

2023 Environmental Document Filing Fee Cash Receipt - Delta Conveyance Project

PDF•cash-receipt

DCA Notice of Determination for Delta Conveyance Project

PDF•determination-and-findings

Second Addendum to the Final Environmental Impact Report for the Delta Conveyance Project

PDF•addendum

2023 Environmental Document Filing Fee Receipt - Delta Conveyance Project

PDF•other

AI Contract Breakdown

Uniform Contract Format

Timeline

1 update

PostedAug 29

forecast

Amendment 1Jul 2

Contract was updated

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Organization & Contact Information

AgencyCalifornia Water Resources, Department of

Contacts1 person available

OfficeN/A

Organization / Agency

California Water Resources, Department of

Office AddressN/A

Contacts

Marcus YeeProgram Manager

contact@example.gov

+1 (555) 000-0000

Full Description

The California Department of Water Resources (DWR) is proposing refinements to the Delta Conveyance Project previously evaluated in the Delta Conveyance Project Final Environmental Impact Report (Final EIR) certified in December 2023. Specifically, DWR is proposing design or construction refinements that would modify the configuration of the intake structural design and construction methods of the project intakes; lower the tunnel profile extending from Lower Roberts Island to the Bethany Reservoir Surge Basin; reduce the thickness of the diaphragm walls, shaft liners, shaft slab thickness, and diameters of the intake outlet shafts and maintenance and reception shafts; reconfigure the foundation and below-ground structural layout at the Bethany Reservoir Pumping Plant; modify the foundation design for the Bethany Reservoir Surge Basin slab at the Bethany Complex; and reduce the diameter and spacing between the four pipelines that compose the Bethany Reservoir Aqueduct. The project refinements described in the Second Addendum to the Final Environmental Impact Report for the Delta Conveyance Project, in consideration of potential changed circumstances and new information, do not have the potential to create any new significant adverse environmental effects outside of the scope of the analyses already contained in the previously certified Final EIR or substantially increase the severity of effects previously analyzed in the Final EIR. Because no new or substantially more severe effects will occur, a subsequent EIR or supplement to the certified Final EIR is not required pursuant to CEQA.