Operable Unit 1 Remedial Action Plan, Proposed South Region High School #9 & Middle School #4 Site

2 Documents in Project


SCH Number
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Operable Unit 1 Remedial Action Plan, Proposed South Region High School #9 & Middle School #4 Site
Document Type
NEG - Negative Declaration
Present Land Use
M2(Light manufacturing); M3(Heavy manufacturing)

Document Description
The proposed involves approval of a Remedial Action Plan (RAP) by the Department of Toxic Substance Control (DTSC) for the proposed South Region High School Site #9 ("the Site") pursuant to Health and Safety Code chapter 6.8. The RAP focuses on excavation and off-site disposal of ~31,740 cubic yards (CY) of onsite soils impacted with metals (mainly antimony, arsenic, barium, cadmium, lead, and mercury), polychlorinated biphenyls (PCBs), volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), and total petroleum hydrocarbons (TPHs). After completion of the planned excavations, cleanup confirmation sampling and Site restoration will be conducted. If necessary, additional soil volume will be excavated to ensure all impacted soils containing the identified chemicals of concern (COCs) at concentrations exceeding the cleanup levels have been properly removed. The RAP also provides temporary land use controls and a monitoring and contingency plan for Parcel 39 as more fully explained below. The Draft Operable Unit 1 Area A (OU 1A) RAP, Proposed South Region High School #9 and Middle School #4 Site is incorporated by reference.

Contact Information
Joe Hwong
Department of Toxic Substances Control
5796 Corporate Avenue
Cypress, CA 90630

Phone : (714) 484-5406


33°56'26.5"N 118°10'40.4"W
South Gate
Los Angeles
Cross Streets
5246 Tweedy Blvd. and Burtis St.
Total Acres
Parcel #
6222-029-902, various (14 parcels)
State Highways
Tweedy Elem.
Los Angeles River

Notice of Completion

Review Period Start
Review Period End
Development Type
Educational (Proposed high school site)
Local Action
Other Action Other Action: RAP
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Water Quality Water Supply Wetland/Riparian Wildlife Land Use
Reviewing Agencies
California Department of Parks and Recreation California Highway Patrol Department of Fish and Wildlife, Region 5 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Regional Water Quality Control Board, Region 4 Resources Agency Resources, Recycling and Recovery Caltrans, District 7
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