Addendum to the Mitigated Negative Declaration for the Carquinez Middle School Replacement Project

5 Documents in Project


SCH Number
Lead Agency
John Swett Unified School District
Document Title
Addendum to the Mitigated Negative Declaration for the Carquinez Middle School Replacement Project
Document Type
ADM - Addendum
Present Land Use
Document Description
In preparation for the construction of replacement school at the Site, DTSC is considering approval of a RAW in order to address the removal of lead from five excavation areas (see Figure 1). The excavated soil will be stored in roll-off bins at the Site, sampled, classified, profiled, manifested, and transported and disposed of appropriately as hazardous or non-hazardous waste. If disposal of hazardous soils is needed, those soils will be transported to a Class I landfill. If disposal of non-hazardous soils is needed, those soils may be transported to a Class II landfill or to a Class III landfill to be recycled for alternate daily cover.

Contact Information

Elizabeth Tisdale
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency


Contra Costa
Cross Streets
1099 Pomona Street
Carquinez Middle School

Notice of Completion

Development Types
Educational (Carquinez Middle School)
Local Actions
Project Issues
Air Quality, Cultural Resources, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Transportation
Reviewing Agencies
California Department of Conservation (DOC), California Department of Education, California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of General Services (DGS), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water


Final Document(s) [Approved_Certified draft environmental documents]

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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