12101 Crenshaw Boulevard, Hawthorne, California, Interim Measures Workplan
2 Documents in Project
Summary
SCH Number
2026020777
Lead Agency
City of Hawthorne
Document Title
12101 Crenshaw Boulevard, Hawthorne, California, Interim Measures Workplan
Document Type
NOD - Notice of Determination
Received
Posted
7/8/2026
Document Description
The Department of Toxic Substances Control approved an Interim Measures Workplan to support the installation of a passive vapor intrusion mitigation system, permanent soil vapor wells, and a contingency soil vapor extraction system. These measures are intended to minimize the potential migration of volatile organic compounds in soil vapor, monitor subsurface soil vapor conditions, and install contingency soil vapor extraction piping as part of the construction and redevelopment of two hangar structures at the Hawthorne Airport. The Hawthorne Municipal Airport Hangars Project Initial Study Mitigated Negative Declaration (MND) was certified by the City of Hawthorne on January 30, 2026. The final MND analyzed the construction of 13 new aircraft hangars at four designated sites within the Hawthorne Airport. The project also includes demolition of six buildings totaling 18,000 square feet, removal of 55,000 square feet of impervious surfaces, and replacement with new pavement and airfield safety enhancements. The hangars will range from 2,500 to 25,300 square feet and incorporate modern fire suppression systems, energy-efficient lighting, and seismic reinforcements. Construction will occur in phases from June 2025 to late 2028. DTSC utilized information and analysis in the final MND to support a determination regarding the type of environmental document required for the IMWP, as provided by Sections 15162, 15163, and 15164 of the CEQA Guidelines. An Addendum was prepared that considered the environmental impacts analyzed in the final MND. The Addendum focuses on determining whether the project activities associated with the IMWP would increase the severity of previously identified impacts or result in any new impacts not considered in the final MND.
Contact Information
Name
Tajinder Gill
Agency Name
Department of Toxic Substances Control
Job Title
Project Manager
Contact Types
Responsible Agency
Phone
Name
Donny Sandusky
Agency Name
395 Park Place, LLC
Job Title
Executive Vice President
Contact Types
Project Applicant
Phone
Location
Coordinates
Cities
Hawthorne
Counties
Los Angeles
Regions
Citywide
Cross Streets
12101 Crenshaw Boulevard
Notice of Determination
Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Los Angeles
Final Environmental Document Available at
https://www.envirostor.dtsc.ca.gov/public/profile_report.asp?global_id= 80001540
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
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(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
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