Marathon Los Angeles Refinery Modernization Projects
Summary
SCH Number
2025110170
Lead Agency
South Coast Air Quality Management District
Document Title
Marathon Los Angeles Refinery Modernization Projects
Document Type
NOP - Notice of Preparation of a Draft EIR
Received
Present Land Use
The Marathon Los Angeles Refinery is designated heavy industrial by the City of Los Angeles (M3-1) and industrial (M-H) by the City of Carson.
Document Description
Tesoro Refining & Marketing Company, LLC doing business as Marathon Los Angeles Refinery, proposes to modernize its Marathon Los Angeles Refinery (Refinery), which is comprised of its Carson Operations and Wilmington Operations, for the purpose of: replacing equipment that is at the end of its useful life; providing asphalt binder to meet market demand; enabling flexibility by making modifications to specific processing units to adjust product yields between transportation fuel products (i.e., gasoline, diesel fuel, and jet fuel), depending on market demand; and more efficiently producing octane-blending components needed for gasoline supply. Specifically, Tesoro is proposing modifications to: 1) replace aging coke drums; 2) produce asphalt binder; 3) improve operational performance of the Fluid Feed Hydrodesulfurization Unit which removes sulfur from the gas oil feed before it goes to the Fluidized Catalytic Cracking Unit (FCCU), and 4) improve efficiency to make more high-octane, low vapor pressure clean-gasoline blendstocks by modifying the: a. FCCU which converts heavy hydrocarbons into gasoline and other lighter hydrocarbons, b. alkylation units which convert lighter hydrocarbons into blendstocks for gasoline, and c. the C3 Splitter Unit which separates propane and propylene (compounds containing three carbon molecules) for further processing elsewhere or sold as product. Each of these proposed projects are designed to ensure continued safe operations and provide a reliable and affordable supply of transportation fuels to meet the market shift during California’s transition to a zero-emission transportation system. The four proposed projects fulfill different needs at the Refinery, such that any single project can occur without any of the other three projects and have independent utility. However, because each project will have an overlapping construction schedule, the projects are evaluated altogether. The NOP/IS identifies potentially significant adverse impacts to the environmental topics of air quality and greenhouse gas emissions, hazards and hazardous materials, hydrology and water quality related to water demand during operations, noise during construction, and transportation during construction. This facility is identified on lists compiled by the California Department of Toxics Substances Control per Government Code Section 65962.5.
Contact Information
Name
Farzaneh Khalaj
Agency Name
South Coast AQMD
Job Title
Air Quality Specialist
Contact Types
Lead/Public Agency
Phone
Email
Name
Robin Schott
Agency Name
Tesoro Refining & Marketing LLC
Job Title
LASR Environmental Lead
Contact Types
Project Applicant
Phone
Name
Debbie Bright Stevens
Agency Name
Environmental Audit, Inc.
Job Title
Senior Vice President
Contact Types
Consulting Firm
Phone
Email
Location
Coordinates
Cities
Carson, Wilmington in the City of Los Angeles
Counties
Los Angeles
Regions
Countywide
State Highways
1, 47, 103, & 405, 710
Railways
BNSF RR and UP RR
Schools
see "Other Information"
Waterways
Dominguez Channel
Other Location Info
Tesoro Los Angeles Refinery - Carson Operations (Facility ID 174655)
2350 East 223rd Street (nearest intersection: Marathon Way and East 223rd Street)
Carson, CA, 90810, Los Angeles County
Tesoro Los Angeles Refinery - Wilmington Operations (Facility ID 800436)
2101 East Pacific Coast Highway (nearest intersection: Alameda Street and East Pacific Coast Highway)
Wilmington, CA, 90744, in the City of Los Angeles, Los Angeles County
Both of these facilities are located in the AB 617 Wilmington, Carson, and West Long Beach community.
Schools within two miles:
Preschool or Kindergarten (P/K) - 8 Schools:
Holy Family-Wilmington
Sts. Peter and Paul School
Scholarship Prep – south Bay
Hudson K-8
Muir K-8
St. Lucy Catholic School
P/K - 12 Schools:
Bethel Baptist School
Pacific Harbor Christian School
Pacific Baptist School
Elementary Schools:
Catskill Avenue Elementary School
Broad Avenue Elementary School
Fries Avenue Elementary School
George de la Torre Junior Elementary School
Gulf Avenue Elementary School
Carson Street Elementary K-5
Del Amo Elementary K-5
Bonita Street Elementary K-5
Delores Street Elementary K-5
Wilmington Park Elementary School
Birney Elementary School
Lafayette Elementary School
Garfield Elementary School
Webster Elementary School
Middle Schools:
Carnegie Middle School
Wilmington Middle School
Stephens Middle School
High Schools:
Carson High School
Dan M Isaacs Avalon High School
Phineas Banning Senior High School
Juan Rodriguez Cabrillo High School
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), 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 Toxic Substances Control (DTSC), California Department of Transportation, District 7 (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Coastal Conservancy (SCC), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, California Native American Heritage Commission (NAHC)
State Reviewing Agency Comments
California Native American Heritage Commission (NAHC)
Development Types
Other (Not Applicable)
Local Actions
Not Applicable
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cumulative Effects, Energy, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Wildfire, Archeological/Historical, Forest Land/Fire Hazard, Soil Erosion/Compaction/Grading,
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from State Reviewing Agency(ies)]
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