In Situ Thermal Remediation Work Plan, 2136 South Hathaway Street
2 Documents in Project
Summary
SCH Number
2024050133
Lead Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
In Situ Thermal Remediation Work Plan, 2136 South Hathaway Street
Document Type
NOD - Notice of Determination
Received
Posted
7/3/2024
Document Description
The proposed project remedial actions involve implementing an In Situ Thermal Remediation (ISTR) 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
Name
Angela Turner
Agency Name
Department of Toxic Substances Control
Job Title
Hazardous Substances Engineer
Contact Types
Lead/Public Agency
Phone
Location
Cities
Santa Ana
Counties
Orange
Regions
Southern California
Cross Streets
2136 South Hathaway Street
Notice of Determination
Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
County Clerk
Orange
Final Environmental Document Available at
https://www.envirostor.dtsc.ca.gov/public/profile_report.asp?global_id=30340013
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
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.