DID YOU KNOW?

Ascon has concluded primary excavation onsite. The project now transitions into the next phase of Final Remedy work: construction of the engineered cap. With clean imported soil being used to construct the cap, odors are not expected to result from this work and the Ascon air monitoring program will undergo changes.

This month, the Ascon air monitoring program will reflect the following:

  • Near real-time monitoring for dust and total Volatile Organic Compounds (VOCs) at the six onsite perimeter air monitoring stations will continue. Results will continue to be posted to the project website each day in near real-time.
  • Collection of samples for laboratory analysis of individual VOC compounds will be stopped, as the disturbance of waste material onsite will be minimal throughout the remainder of the project. Additionally, grading of imported soil is not expected to generate VOC emissions related to waste excavation. ​
  • Offsite monitoring stations will be removed and offsite odor monitors will no longer be present.​

Ascon’s air quality monitoring since 2019 has shown air quality has consistently met health-protective screening levels and has been safe, including during active work. For more information about Ascon’s air monitoring program, please visit asconhb.com.

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.

    Clean Soil Import Work

    Clean soil import may 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 and Magnolia 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:

    • The Department of Toxic Substances Control (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. The last inspection was on Thursday, April 23. 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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