Install (2) Pipelines for Gas and Hydrogen

3 Documents in Project


SCH Number
Lead Agency
Contra Costa County
Document Title
Install (2) Pipelines for Gas and Hydrogen
Document Type
NOP - Notice of Preparation
Present Land Use
HI - Heavy Industrial; OS - Open Space and PR

Document Description
The project would construct two pipelines approximately 6.07 miles each and install three 8-inch excess flow valves and five 8-inch block valves. Each pipeline would be constructed of 8-inch outside diameter, buried steel pipe, coated and cathodically protected from external corrosion. Horizontal direction drilling would be used to construct the pipeline under two locations: (1) the Carquinez Strait and (2) Interstate 680 and the adjacent McNabey Marsh. Conventional boring would be used in four locations under roads and railroads, and open cut trenching would be used along the rest of the pipeline route.

Contact Information
Lashun Cross
Contra Costa County Department of Conservation
651 Pine Street, 4th Floor North Wing
Martinez, CA 94553-1229

Phone : (925) 335-1229


Contra Costa
Cross Streets
Waterfront Road and Waterbird Way
Parcel #
State Highways
Hwy 680
Carquinez Strait, Pacheco Slough, Walnut Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Hydrogen Pipeline Construction)
Project Issues
Agricultural Land Air Quality Archaeologic-Historic Biological Resources Geologic/Seismic Job Generation Minerals Noise Population/Housing Balance Public Services Recreation/Parks Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Water Quality Land Use Other Other Issues: Utilities
Reviewing Agencies
California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Energy Commission California Highway Patrol California Native American Heritage Commission California Public Utilities Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Resources Agency Department of Toxic Substances Control California Department of Transportation, District 4

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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