Paint Waste Area/ Unexploded Ordnance Site 13 Record of Decision/Final Remedial Action Plan
2 Documents in Project
Summary
SCH Number
2026080071
Lead Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Paint Waste Area/ Unexploded Ordnance Site 13 Record of Decision/Final Remedial Action Plan
Document Type
NOD - Notice of Determination
Received
Posted
9/28/2026
Document Description
The California Department of Toxic Substances Control (DTSC) approved the Record of Decision (ROD)/Final Remedial Action Plan (Final RAP) for the Paint Waste Area (PWA), also identified as Unexploded Ordnance (UXO) Site 13, located at the Former Mare Island Naval Shipyard (MINS) in Vallejo, California. Within the PWA, the remaining paint waste debris and associated soil contamination, and the potential for incidental munitions and explosives of concern (MEC) hazards beneath the detection depth limits of available technology will be addressed by the remedial action described in the ROD/Final RAP.
The actions consist of the following:
•Soil excavation and offsite disposal for the PWA Target Treatment Zone (TTZ) A and Institutional Controls (ICs) for incidental MEC for both TTZ A and TTZ B to restrict certain sensitive uses of the property and prohibit ground-penetration. The remaining paint waste debris and lead contamination within TTZ A will be excavated, mechanically screened to remove MEC, and transported to a permitted offsite waste disposal facility.
•Soil will be excavated to an estimated depth up to 4.5 feet below ground surface (bgs). The impacted soil is estimated at 818 bank cubic yards (cy) from TTZ A with an additional estimated 182 cy of overburden or extra soil from benching the excavations. After excavation is completed and no visual deposits of paint waste remain, lead confirmation samples will be collected at the extent of the excavations.
•The excavations will be backfilled with clean imported soil (approximately 1,000 bank cy), compacted, and restored to match pre-excavation conditions.
•Excavated areas will be hydroseeded with native grasses to prevent erosion and revegetated with wetland plant species, such as pickleweed cuttings and salt grass, to promote appropriate nontidal wetland habitat and monitored to confirm that agreed upon wetland revegetation criteria are met.
Contact Information
Name
Franklin Mark
Agency Name
Department of Toxic Substances Control
Job Title
Project Manager
Contact Types
Lead/Public Agency
Phone
Name
Scott Anderson
Agency Name
Department of Navy
Job Title
Navy BRAC Environmental Coordinator
Contact Types
Project Applicant
Phone
Location
Cities
Vallejo
Counties
Solano
Regions
San Francisco Bay Area
Cross Streets
West of the intersection of Azuar Drive and G Street on Mare Island
Zip
94592
Total Acres
5.5
State Highways
37
Railways
CFNR
Waterways
Mare Island, San Pablo Bay, Carquinez Strait, Napa River
Notice of Determination
Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
County Clerk
Solano
Final Environmental Document Available at
www.envirostor.dtsc.ca.gov/public/profile_report.asp?global_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 Mitigated or 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
No
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(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
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