Site Description

The Pacific Gas and Electric Company (PG&E) Topock Compressor Station (Station) compresses natural gas so it can be transported through pipelines to PG&E's customers in northern and central California. The Station is located in eastern San Bernardino County, about 12 miles southeast of the city of Needles, California, south of Interstate 40, and one-half mile west of the Colorado River. The Station is surrounded by land owned by PG&E, the Fort Mojave Indian Tribe, BNSF Railroad, and the federal government, including the Havasu National Wildlife Refuge managed by the U.S. Fish and Wildlife Service, and lands owned and/or managed by the U.S. Bureau of Reclamation and the Bureau of Land Management (see the Topock Project Site [Site] location map). 

  • The Basis of Design/Final (100%) Design Report was submitted by PG&E on November 18, 2015. DTSC will review the Final Design report as it is preparing the Subsequent Groundwater Environmental Impact Report (SEIR).
  • The Department of Toxic Substance Control (DTSC)The department within the California Environmental Protection Agency in charge of the regulation of hazardous waste from generation to final disposal. DTSC oversees the investigation and cleanup of hazardous waste sites., is preparing a SEIR to evaluate potential environmental impacts resulting from design details of the selected groundwater remedy (In situ TreatmentTreatment of contamination in place. with Freshwater FlushingMoving of fresh water through the well system to push the plume through an In-Situ Reduction Zone located along National Trails Highway.) that were modified since the approval of the conceptual Groundwater Remediation Project in the 2011 Final Groundwater Remedy EIR and the 2013 Addendum to the EIR. Construction of the final groundwater remedy system will take place after the certification of the SEIR and approval of the final design.
  • The Risk Assessment Work Plan Addendum II, which contains updated information relevant to the evaluation of soil contamination, was approved on August 24, 2015. Soil risk assessment work is anticipated to follow the soil investigation.
  • Revised Soil RFI/RI Work Plan, was submitted January 14, 2013. The draft Soil EIR was released for public comment from June 7 through September 5, 2014 to evaluate the potential environmental impacts of the investigation. The Biological Section of the draft Soil EIR was recirculated for public comment by DTSC on April 15 and ended on June 1, 2015. DTSC certified the Soil EIR and approved the Revised Soil RFI/RI Work Plan on August 24, 2015. Soil sampling and related Soil Investigation field work began on December 2015, and is planned to continue through early 2017.
  • A Final Soil RFI/RI Volume I Addendum that updated Site information was submitted on April 28, 2014. DTSC and DOI accepted the Addendum on June 4 and July 8, 2014, respectively.
  • PG&E and the DOI executed a Remedial Design/Remedial Action Consent DecreeAn agreement between a lead agency and responsible party in which the responsible party commits to investigate the nature and extent of contamination at and surrounding a site governed by CERCLA, and related remedial actions addressing contamination, and to take corrective action. under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)Commonly known as Superfund, this law created a tax on the chemical and petroleum industries and provided broad federal authority to respond directly to releases or threatened releases of hazardous substances that may endanger public health or the environment. CERCLA established prohibitions and requirements concerning closed and abandoned hazardous waste sites; provided for liability of persons responsible for releases of hazardous waste at these sites; and established a trust fund to provide for cleanup when no responsible party could be identified. The law authorizes two kinds of response actions: short-term removals, where actions may be taken to address releases or threatened releases requiring prompt response; and long-term remedial response actions that permanently and significantly reduce the dangers associated with releases or threats of releases of hazardous substances that are serious, but not immediately life threatening. in 2012, which was lodged with the U.S. District Court for the Central District of California in January 2013, and became effective upon approval by the court in November 2013.
  • PG&E has completed field work to evaluate a source of groundwater needed for the Final Groundwater Remedy proposed in the Implementation Plan for Alternative Freshwater Source Evaluation (or Remedial Design Documents). A summary of findings was incorporated into the Final Design.