In Situ Thermal Remediation Work Plan, 2136 South Hathaway Street


SCH Number
Lead Agency
Department of Toxic Substances Control
Document Title
In Situ Thermal Remediation Work Plan, 2136 South Hathaway Street
Document Type
NEG - Negative Declaration
Present Land Use
Light industrial
Document Description
The proposed In Situ Thermal Remediation Work Plan for the remediation of volatile organic compounds (VOCs) in soil and groundwater at the Embee Facility. The remedial action would involve using heat to volatilize VOCs in soil (in situ) which are then captured in the gas phase using vapor extraction. Heating would be achieved through physical heating (conduction) of the soil using steam or direct heating (heater wells would apply a heat source directly to the soil and groundwater) or through electrical resistance heating (ERH) using an electrical, alternating current is passed through soil and the soils resistance generates heat along the path that the current travels. ERH is most effective at treating low permeability soils because the clays heat very efficiently, and the VOCs are boiled out of the low permeability zones.

Contact Information

Angela Turner
Agency Name
Department of Toxic Substances Control
Job Title
Project Manager
Contact Types
Lead/Public Agency


Santa Ana
Cross Streets
2136 South Hathaway Street

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Transportation, District 12 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), Department of Toxic Substances Control, Office of Historic Preservation
Development Types
Other (remediation workplan)
Local Actions
remediation workplan
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Wetland/Riparian, Wildfire
Local Review Period Start
Local Review Period End


Notice of Completion [NOC] Transmittal form

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