Emerald Transformer Los Angeles LLC (Formerly Clean Harbors Los Angeles)

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• Facility Description
• EPA's Role
• Documents

Facility Description

Emerald Transformer Los Angeles, LLC (Emerald Transformer) is a commercial hazardous waste treatment, storage, and transfer facility located approximately two miles south of Downtown Los Angeles in the industrial city of Vernon, California, at the intersection of East Slauson Avenue and South Alameda Street. Emerald Transformer accepts polychlorinated biphenyls (PCBs) waste as well as hazardous wastes which are generated offsite.

EPA's Role

EPA regulates the handling of PCB waste at the Emerald Transformer facility under a Toxic Substances Control Act (TSCA) Approval (permit). The State of California’s Department of Toxic Substances Control, authorized under federal law, regulates the handling of hazardous waste under a Resource Conservation and Recovery Act (RCRA) hazardous waste permit.

EPA concluded in 2025, based on a thorough review of the permit application, that Emerald Transformer satisfies the TSCA requirements for storage of PCBs set forth in 40 CFR §761.65(d). EPA has also concluded that PCB operations at the Facility do not pose an unreasonable risk of injury to human health or the environment.

On October 10, 2025, EPA issued a Public Notice announcing a 30-day public comment period on a Proposed PCB Commercial Storage Facility permit. No public comments were received during the public comment period.

On December 8, 2025, EPA issued a Final PCB Commercial Storage Facility Approval (permit) to allow Emerald Transformer to continue storing PCB waste. That permit will be valid for 10 years. EPA also regularly conducts inspections of the facility to ensure that the existing permit conditions are being followed. Such inspections are unannounced and include random wipe sampling to check for residues and evidence of chemical releases.

Documents

2025 Approval Renewal

• Emerald Transformer Los Angeles Final PCB Commercial Storage Approval / Aprobación Final de Almacenamiento Comercial de PCB de Emerald Transformer Los Ángeles (pdf) (727.91 KB, December 8, 2025)
  Final TSCA Approval for Commercial Storage of Polychlorinated Biphenyls (PCBs) issued to Emerald Transformer Los Angeles LLC. EPA ID: CAD050806850. | Aprobación Final de TSCA para el Almacenamiento Comercial de Bifenilos Policlorados (PCBs) emitida a Emerald Transformer Los Ángeles LLC. ID de la EPA: CAD050806850.
• EPA Fact Sheet: Proposed Approval of Emerald Transformer Los Angeles PCB Waste Storage Project (pdf) (1013.26 KB, October 2025)
  EPA Fact Sheet with information about the Emerald Transformer Los Angeles facility, the storage of polychlorinated biphenyls (PCBs) at their facility, and EPA’s Proposed Approval Renewal of their TSCA Renewal application to commercially store PCBs.
• Emerald Transformer Los Angeles TSCA Application / Solicitud de TSCA (pdf) (15.53 MB, May 2, 2025)
  Emerald Transformer Los Angeles LLC’s Toxic Substances Control Act (TSCA) Renewal application to commercially store PCBs. | Solicitud de renovación de la Ley de Control de Sustancias Tóxicas (TSCA) de Emerald Transformer Los Angeles LLC para almacenar PCB de forma comercial.
• Emerald Transformer LA TSCA Inspection Report / Informe de Inspección de TSCA (pdf) (7.6 MB, June 24, 2024)
  2024 EPA Toxic Substances Control Act (TSCA) inspection report of the Emerald Transformer Los Angeles facility. | Un informe de inspección de la Ley de Control de Sustancias Tóxicas (TSCA) de EPA sobre la instalación de Emerald Transformer Los Angeles.
• EPA Letter: Emerald Transformer Los Angeles Approval Continuation Letter / Carta de Continuación de Approval (pdf) (114.55 KB, October 11, 2023)
  EPA letter administratively continuing the existing Emerald Transformer Los Angeles Approval until EPA issues a final decision on the Toxic Substances Control Act (TSCA) Renewal application. | Carta de EPA que continúa administrativamente la aprobación existente de Emerald Transformer Los Ángeles hasta que EPA emita una decisión final sobre la solicitud de renovación de la Ley de Control de Sustancias Tóxicas (TSCA).

2018 Approval Modification

• PCB Permit Modification/Modificación del permiso de PCB: Emerald Transformer Los Angeles LLC. (pdf) (943.45 KB, December 6, 2018)
  TSCA Approval Modification for Commercial Storage of Polychlorinated Biphenyls, Emerald Transformer Los Angeles LLC. EPA ID # CAD0508006850. | Modificación de la aprobación de la TSCA para el almacenamiento comercial de bifenilos policlorados, Emerald Transformer Los Angeles LLC. N.º de ID. de la EPA: CAD0508006850.

2013 Approval

• Final TSCA Approval/Aprobación final de la TSCA: Clean Harbors Los Angeles LLC (pdf) (930.22 KB, October 24, 2013)
  Final TSCA Approval for Commercial Storage of Polychlorinated Biphenyls (PCBs) issued to Clean Harbors Los Angeles LLC. EPA ID: CAD 050806850. | Aprobación final de la TSCA para el almacenamiento comercial de bifenilos policlorados (PCB) otorgada a Clean Harbors Los Angeles LLC. ID. de la EPA: CAD 050806850.
• Final Statement of Basis/Declaración final de fundamentos: Clean Harbors Los Angeles LLC (pdf) (477.74 KB, October 24, 2013)
  Statement of Basis supporting the approval for commercial storage and disposal of Polychlorinated Biphenyls (PCBs) for Clean Harbors Los Angeles LLC. EPA ID: CAD 050806850. | Declaración de fundamentos en apoyo de la aprobación del almacenamiento comercial y la eliminación de bifenilos policlorados (PCB) para Clean Harbors Los Angeles LLC. ID. de la EPA: CAD 050806850.
• Administrative Record Index/Índice del registro administrativo: Clean Harbors Los Angeles LLC (pdf) (58.04 KB, October 2013)
  Administrative Record Index for Clean Harbors Los Angeles LLC PCB Storage Approval. EPA ID: CAD 050806850. | Índice del registro administrativo para la aprobación del almacenamiento de PCB en Clean Harbors Los Angeles LLC. ID. de la EPA: CAD 050806850.