Remedial Action at Former Mare Island Naval Shipyard, Investigation Area F1 (IA F1)

2 Documents in Project

Summary

SCH Number
2019059075
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Remedial Action at Former Mare Island Naval Shipyard, Investigation Area F1 (IA F1)
Document Type
NOD - Notice of Determination
Received
Posted
8/16/2019
Project Applicant
Department of Toxic Substances Control

Document Description
The California Department of Toxic Substances Control (DTSC) approved the Record of Decision (ROD)/Remedial Action Plan (RAP) for the former Mare Island Naval Shipyard IA F1. The action consists of excavation, removal, and off-site disposal of 1,250 cubic yards of lead-contaminated soil from upland areas, as well as dredging, removal, and off-site disposal of 3,600 cubic yards of metals-contaminated wetland sediment. Clean soil and sediment will be imported and placed in the excavated areas as part of site restoration. The upland areas, referred to as Subarea 4 and Subarea 5 will remain clear after the project is complete to provide a wild land fire control break and be available for possible future reuse. A small portion of Subarea 6 will be replanted with similar vegetative types and quantities as currently found on the site. The excavation within a wetland (a majority of Subarea 6) will be back filled with imported sediment and the wetland, including wetland vegetation, will be restored to its current condition. The project will be. scheduled for a time of the year (April through October) when rainfall is unlikely. The Department of Defense derives authority to undertake this cleanup action under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) under 42 United States Code U.S.C. Section 9604, 10 U.S.C. Section 2705. DTSC is proposing to approve this project pursuant to the authority granted under Chapter 6.8, Division 20, California Health and Safety Code (H&SC).

Contact Information
Gavin McCreary
Department of Toxic Substances Control
700 Heinz Avenue
Berkeley, CA 94710

Phone : (916) 255-3710

Location

Counties
Solano
Other Location Info
Former Mare Island Naval Shipyard, Vallejo, California. Intersection of Railroad Avenue and Gardner Avenue.

Notice of Determination

Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
DTSC File Room: 700 Heinz Avenue Berkeley, CA 94710 DTSC Website: https://www.envirostor.dtsc.ca.gov/public/profile report?g lobcll id=48970002

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

Notice of Determination
2019059075   PDF 1650 K
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