DID YOU KNOW?

Resources for Final Remedy work are available for the community to view on the Ascon website, including:

  • April 2026 Department of Toxic Substances Control (DTSC) Ascon community update
  • Near real-time telemetry air monitoring data ​
  • Ascon Restart Work Technical Explainer​
  • Final Remedy Restart Work Plan​

To view all Ascon Final Remedy work resources, please visit asconhb.com/restart.

SITEWIDE ACTIVITIES

  • FIELD WORK: Grading of soils will continue throughout the Site this week.

    During this phase of work, personnel may be onsite on Saturdays to conduct Site work and equipment maintenance from 7 a.m. to 5 p.m.

    Ascon Soil and Groundwater Sampling Work, 5/11

    Today, May 11, the Ascon Team will conduct soil and groundwater sampling in the southeast area of the Ascon Site. This sampling is being performed as part of the remediation process required by DTSC.

    Here is what you can expect:

    • This work is expected to be completed within one day.
    • A track-mounted drill rig will collect soil and groundwater samples at five locations. Upon completion of sampling, each borehole will be backfilled with bentonite clay.
    • Neighbors may notice intermittent noise and vibration due to drilling, primarily between 8 a.m. and 4 p.m.
    • Dust mitigation measures will be in place to minimize impacts on the surrounding community.

    Clean Soil Import Work

    Clean soil import is expected to continue this week, depending on availability.

    Here is what you can expect to see:

    • As many as 150 soil import trucks may arrive onsite each day. ​
    • Work may occur Monday through Friday, between 7 a.m. and 6 p.m.
    • Haul trucks enter Ascon from Hamilton Avenue and exit on Magnolia Street. Import haul trucks avoid the major intersection of Hamilton Ave. and Magnolia St. per the project’s approved haul route plan.  ​
    • Dust mitigation and traffic control measures are in place. We also conduct additional street cleaning outside the project Site entrance and exit areas during periods of import.​

  • INSPECTIONS:

    • DTSC is the lead regulatory agency for the Ascon project and conducts inspections at Ascon. Their inspection reports can be found on the online DTSC database, Envirostor.
    • South Coast Air Quality Management District (SCAQMD) inspected the Site on April 24. The inspection included checking equipment and documentation and confirmed that Ascon is operating in compliance with the project’s SCAQMD permits.
    • The City of Huntington Beach continues its regular stormwater inspections of Ascon. Site staff will be at Ascon weekly for routine inspections and daily during extended rain events as needed to monitor the Site stormwater controls. Ascon remains in compliance with stormwater pollution prevention requirements.
    • Regular inspections are conducted by Orange County Mosquito and Vector Control District (OCMVCD) in areas of the Ascon Site where water may be detained. Active mitigation measures are implemented by OCMVCD to protect the community, as well as onsite workers, from mosquitoes.

  • SECURITY: 24-hour, 7 days per week, onsite security continues during construction activities. Security is not always visible at the entrance gates. Unannounced visitors without official business or agency oversight of Ascon are not permitted to enter the Site. Trespassers will be reported to the Huntington Beach Police Department and DTSC.

    You may see: You may see flashlights or headlights from vehicles after dark concluding daily activities and providing security at the 38-acre Site.

    In an emergency: If you see or hear something that appears urgent, please call the Huntington Beach Police Department at 911 first, then the Ascon community information line, 714-388-1825. Calls to the Ascon information line are automatically logged and relayed by text and email to the Ascon team.

AIR MONITORING

Dust and total VOC monitoring is conducted 24/7 at upwind and downwind stations on the Ascon Site, documenting effective dust control measures.

Where to find air monitoring data: To view archived air monitoring results posted by DTSC on Envirostor – including weekly field inspections by DTSC that include air monitoring observations – click on “Community Involvement Documents” and scroll to “Updates and Information.” Air monitoring data are also available on asconhb.com.

SAFETY MESSAGE

SEE SOMETHING? HAVE A QUESTION? Call our information line: 714-388-1825 or email us at info@asconhb.com

DRONES: Drone flights over Ascon can create worker and Site safety issues. Please don’t fly drones over sensitive onsite equipment and the power lines along the perimeter of Ascon. We appreciate the community’s assistance. 

ENTRANCE AND EXIT GATES: Entering the Ascon Site is prohibited to those who are not authorized. The community is asked to keep a safe distance from both entrance and exit gates at Ascon, especially during soil importing, and refrain from parking, walking, or standing in these areas. The gates on Magnolia Street and Hamilton Avenue may open unexpectedly for workers and site inspections, as well as supply delivery and removal.  

PEDESTRIANS: Your safety is important! Pedestrians have been observed walking next to Ascon along Magnolia and Hamilton streets (adjacent to the concrete fence base where there currently is no sidewalk). We encourage pedestrians to observe public pathway signage and use the sidewalks on the east side of Magnolia and the north side of Hamilton.  

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