Tesoro Refining & Marketing Company LLC, Class 3 Permit Modification
2 Documents in Project
Summary
SCH Number
1996103159
Lead Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Tesoro Refining & Marketing Company LLC, Class 3 Permit Modification
Document Type
NOD - Notice of Determination
Received
Posted
12/4/2025
Document Description
The California Department of Toxic Substances Control (DTSC), pursuant to authority granted under California Code of Regulations, Title 22, Division 4.5, Chapter 20, Section 66270.42 is approving an Addendum to a previously adopted Initial Study/Negative Declaration for a Class 3 Permit Modification to the existing Hazardous Waste Post Closure Facility Permit (Permit) for Tesoro Refining & Marketing Company LLC (Refinery). This Permit Modification will authorize permanent repair to a lined surface impoundment (West Basin) located at 1801 East Sepulveda Boulevard in Carson, California 90810. This Permit Modification does not include any ground disturbing activities or operational changes and all previous Post-Closure Permit requirements will remain in effect.
Contact Information
Name
Zephyr Azarian
Agency Name
Department of Toxic Substances Control
Job Title
Hazardous Substances Engineer
Contact Types
Lead/Public Agency
Phone
Name
Nate Busch
Agency Name
Tesoro Carson Refining & Marketing Company LLC
Job Title
Advanced Environmental Scientist
Contact Types
Project Applicant
Phone
Location
Cities
Carson
Counties
Los Angeles
Regions
Southern California
Other Location Info
1801 East Sepulveda Boulevard, Carson, CA 90810
Notice of Determination
Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
County Clerk
Los Angeles
Final Environmental Document Available at
The administrative record for this project is available to the public by appointment at the following location: Department of Toxic Substances Control; Permitting Division; 9211 Oakdale Avenue; Chatsworth, CA 91311. Additional project information is available on EnviroStor: www.envirostor.dtsc.ca.gov/public/
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
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