There is a third-party technical advisor for the Ascon project as a resource for the community. The Ascon project funded this third-party technical advisor beginning in 2019, to help residents understand the science behind technical aspects of the cleanup.

The technical advisor, Andrew Cherene, is managed by the City of Huntington Beach and is independent of DTSC and the Ascon project. The community can contact the advisor directly with questions about Ascon at [email protected] or via City staff liaison Tom Herbel at 714-375-5077.


  • SECURITY: 24-hour onsite security continues. Security may not be visible at the entrance gates. The Ascon security personnel are primarily within the Site conducting daytime and nighttime patrols of the 38-acre property. In addition to 24/7 onsite security, there are regular visits by air quality technicians, Site inspectors and Site maintenance personnel.


    • DTSC continues its ongoing weekly inspections of Ascon.
    • City of Huntington Beach continues its regular stormwater inspections of Ascon.
    • Regular inspection of the “Pit F” tent will be conducted.
    • Regular inspections are conducted by Orange County Mosquito and Vector Control District of the onsite detention basins and other areas of the Ascon Site where water may be detained.
  • SUPPLY DELIVERY: Supplies for ongoing stormwater management may be delivered.

  • NEARBY ACTIVITIES: Please note there are activities unrelated to Ascon at the former tank farm property, south of Ascon and adjacent to Magnolia Street.


The California Department of Toxic Substances Control (DTSC) has permitted a brief pause on daily air sampling and monitoring both onsite and at offsite locations to allow our personnel to be with their families over the Thanksgiving holiday week, beginning Friday, November 20 at approximately 7 am. The air sampling and monitoring will resume at approximately 7 am, Monday, November 30. Other than regular Site inspections, there is no field activity being conducted at Ascon during this time.

For more information about Ascon’s air monitoring and data sharing, please visit the Actively Monitoring Air Quality page on this website. Data is submitted to DTSC and shared on their online document archive, Envirostor. To view archived air monitoring results posted by DTSC on Envirostor, click on “Community Involvement Documents” and scroll to “Updates and Information”.


Work at Ascon is being conducted under Site safety protocols regarding COVID-19. These practices apply to air quality professionals and other team members who may be outside the fence conducting work. We ask for the community’s support of these safety practices by maintaining physical distancing to allow these professionals to focus on their work and stay safe.

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