Peyton Slough Remediation Project

4 Documents in Project


SCH Number
Lead Agency
Regional Water Quality Control Board, Region 2 (San Francisco Bay), Oakland
Document Title
Peyton Slough Remediation Project
Document Type
NEG - Negative Declaration
Present Land Use
Open Space and Industrial land use designations Once complete, the majority of the remediated project site would continue to function as a wetland/marsh habitat with no change in land use to the upland portions of the site.

Document Description
The project will consist of two phases: (1) excavating and dredging a new alignment east of the existing Peyton Slough, then rerouting the tidal exchangae between the Carquinez Strait and McNabney Marsh via the new alignment, and (2) dewatering, filling, then capping the existing Peyton Slough. A layer of soil will be placed above the cap within which natural habitat will be re-established. A new, full slough re-alignment will begin at a location approximately 200 feet north of the railroad crossing at Waterfront Road and continue to the Strait. The new alignment will run parallel to and to the east of the existing Slough, breaching the levee that separates the northern and southern sections of the Site. The project will consist of the following major activities; site preparation and tide gate installation, removal of certain materials, excavation in the new alignment, transition to new alignment, dewatering excavated materials, and capping the existing Slough.

Contact Information
Priya Ganguli
Regional Water Quality Control Board, Region 2 (San Francisco Ba
Lead/Public Agency
1515 Clay Street, Suite 1400
Oakland, CA 94612

Phone : (510) 622-2427


Contra Costa
Cross Streets
Waterfront Road and Mococo Road
Total Acres
State Highways
Southern Pacific
Carquinez Strait

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Remediation)
Local Action
Grading Permit
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Cultural Resources Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Septic System Sewer Capacity Transportation Wetland/Riparian Wildlife
Reviewing Agencies
California Coastal Commission (CCC) California Department of Conservation (DOC) California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission (NAHC) California Public Utilities Commission (CPUC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) California State Lands Commission (SLC) Department of Water Resources Office of Historic Preservation Resources Agency San Francisco Bay Conservation and Development Commission (BCDC) Department of Toxic Substances Control California Department of Transportation, District 4 (DOT) California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

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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