PG&E Shell Pond

Shell-Pond site map


PG&E Shell Pond site map.


PG&E is working under the oversight of the California Department of Toxic Substances Control (DTSC) to remediate environmental impacts at a 73-acre former wastewater treatment pond known as Shell Pond and a roughly 22-acre solid waste management unit known as the Carbon Black area, both of which are located at 100 Trojan Road in Bay Point, California (site). The treatment pond and waste management unit were built and used by Shell Oil to manage wastes from its operations during the 1950s to the 1970s. PG&E purchased the property from Shell Oil in 1973 with the intent of expanding operations, which never occurred. PG&E is remediating the site to meet today's environmental standards and allow for future recreational uses.


Revitalizing the Site


Worker inspecting plant growth


PG&E has completed a study which confirmed there are naturally occurring processes that can break down contamination found in the waste. We continue to monitor the study area.


PG&E has submitted a draft cleanup plan, called a Statement of Basis, to DTSC for review and anticipates the agency will make the draft Statement of Basis available for public comment in late summer 2019. The plan proposes to use a remediation method called managed natural recovery at Shell Pond. This green method uses plants, their root systems and naturally occurring fungi and bacteria to organically break-down contaminants found in the pond. PG&E would also add clean soil and plants to act as a protective cover over areas of the Carbon Black Area that are not already covered with wetland vegetation. This proposed plan provides long-term protection of public health and the environment, limits material being placed in landfill and minimizes impacts in the community. Should the plan be approved, PG&E anticipates cleanup work would begin in 2020 and last for at least five years.


Community engagement


PG&E annually sponsors and volunteers at Bay Point's Unity in Community event


PG&E annually sponsors and volunteers at Bay Point’s Unity in Community event.


PG&E is actively involved in the Bay Point community and regularly provides project updates to key community groups and stakeholders. Our community work also includes participating in the Adopt-a-Road program along Port Chicago Highway and sponsoring an annual wetlands education event for middle school students.

Site-related documents can also be found locally at:

  • Bay Point Library
    205 Pacifica Ave.
    Bay Point, CA 94565
    Phone number: 925-458-9597
  • DTSC File Room
    700 Heinz Ave.
    Berkeley, CA 94710
    Phone number: 510-540-3800 (Call to schedule an appointment.)
  • Ambrose Community Center - Reception Desk
    3105 Willow Pass Road
    Bay Point, CA 94565 Phone number: 925-458-1601