USS-POSCO Industries, Soil Remediation and Expansion of the Unit One Landfill (Corrective Action Management Unit)

2 Documents in Project


SCH Number
Lead Agency
Department of Toxic Substances Control
Document Title
USS-POSCO Industries, Soil Remediation and Expansion of the Unit One Landfill (Corrective Action Management Unit)
Document Type
NEG - Negative Declaration
Present Land Use
Zoned for Industrial Use

Document Description
Soils impacted with metals (arsenic, lead), polychlorinated biphenyls (PCBs), and/or oil and grease above industrial cleanup levels determined through use of a site specific risk assessment for industrial property use, will be excavated from ten areas around the USS-POSCO facility. Those soils which are non-RCRA, do not contain PCBs, and which been demonstrated not to have the potential to impact groundwater will be added to an already existing landfill which contains non-RCRA California hazardous wastes. The existing landfill, referred to as the Unit One landfill, covers eight acres and rises to a height of approximately 39.5 feet above sea level. Addition of soils will raise the elevation of the landfill to 48 feet above sea level and increase the footprint to 10 acres. Approximately 94,200 cubic yards of additional soils would be added to the 130,800 cubic yards already in place at the Unit One landfill. The Unit One Landfill would then become a Corrective Action Management Unit (CAMU) as defined in Title 22 of the California Code of Regulations. Once expanded the landfill would be referred to as the Unit One CAMU. The Unit One CAMU will be closed once the soils are in place, will have a geosynthetic cap to revent intrusion of rainwater and will be inspected at least once a month for erosion and other possible incursions. The landfill does not have an uderliner. As system of groundwater monitoring wells will be sampled on a regular basis to ensure that groundwater monitoring is not being impacted by the landfill. A post-closure permit is required for this landfill to ensure continued groundwater monitoring and cover maintenance. The post-closure permit will be valid for ten years at which time renewal is required. Those soils containing PCBs, testing positive for RCRA criteria, and/or which not been shown to be protective of groundwater will be disposed of at an appropriate off-site facility. The volume of soil estimated for off-site disposal is 1,441 cubic yards.

Contact Information
Andrew Berna-Hicks
Department of Toxic Substances Control
Lead/Public Agency
700 Heinz Avenue
Berkeley, CA 94710

Phone : (510) 540-3956


Contra Costa
Cross Streets
Santa Fe Avenue and Harbor Street
Total Acres
Parcel #
State Highways
State,Riverside High,Pittsburgh High,FWC Christian,Stoneman Elem
New York Slough, San Joaquin River
Other Information
schools: Stoneman Elementary, Pittsburgh Adult,Central Junitor High,Los Medanos Community College

Notice of Completion

Review Period Start
Review Period End
Development Type
Industrial (Sq. Ft. 435,000, Acres 10)
Project Issues
Aesthetics Air Quality Cultural Resources Cumulative Effects Drainage/Absorption Economics/Jobs Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Schools/Universities Transportation Vegetation Wildlife
Reviewing Agencies
Air Resources Board, Major Industrial Projects California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Health Care Services (DHCS) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) 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 Resources Agency Resources, Recycling and Recovery

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.

Download CSV New Search Print