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    CA0003778 Order No. R4-2026-0210  =====  Status: Active  =====  CI - 5427
    Effective Date: 2026-08-01

    Discharger

    Name
    Tesoro Refining & Marketing Company
    Address
    2101 E Pacific Coast Hwy
    Wilmington, CA 90744
    Contact
    Robert Nguyen, Environmental Manager
    Phone/Email
    (310) 847-5645 / rtnguyen@marathonpetroleum.com

    Facility

    Name
    Los Angeles Refinery
    Address
    2101 E Pacific Coast Hwy
    Wilmington, CA 90744
    Contact
    Nate Busch, Advanced Environmental Specialist
    Phone/Email
    (310) 522-6245 / nbusch@marathonpetroleum.com

    Order/Permit Information

    Permit Type
    REN, I, NPDES
    Threat To Water Quality
    1
    Complexity
    A
    Order Title
    Waste Discharge Requirements (WDRs) and National Pollutant Discharge Elimination System (NPDES) Permit for the Tesoro Refining & Marketing Company, LLC Los Angeles Refinery - Wilmington (NPDES No. CA0003778, CI No. 5427)

    Staff Contact Information

    Name
    Jaime Sayre
    Department
    Permitting - Industrial
    Phone Number
    (213) 576-6716
    Email Address
    Jaime.Sayre@waterboards.ca.gov

    Order/Permit Documentation

    Receiving Water

    Watershed
    Dominguez Channel and Los Angeles Harbor/Long Beach Harbor WMA
    Waterbody
    Dominguez Channel Estuary

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