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Home My WebLink About2025 - Ascon Landfill Site - Community Notice - Department o Department of Community Update: Ascon Landfill "3 Toxic Substances Control September 2025 m' Learn more : AsWtndfill Site cleanup 2525 SEP 22 PM I: 13 progress CITY CLERK'S OFFICE CITY OF HUUIIHGTON BEACH it Join us for a community open house on the Join the open cleanup one-year progress ■■ house The Ascon Landfill Site is a vacant 38-acre property. The Site is at the southwest corner of Hamilton Avenue and Magnolia Street in Please join DTSC for an in-person Huntington Beach, California. The landfill operated from around open house to get updates on the 1938 to 1984. It received waste from oil drilling in the early years. ongoing cleanup work at the Ascon It also accepted construction waste like asphalt, concrete, and Landfill Site. metal in later years. Environmental cleanup restarted in November When: 2024, under the oversight of DTSC and under permit with the October 14, 2025 South Coast Air Quality Management District (SCAQMD). The 6:00 —8:00 pm project completion is expected for early 2027. - Where: Edison Community Center, 21377 Magnolia Street, -NW Huntington Beach, CA This event will not be held virtually .a --'' � �-- or have a formal presentation. -.. � _ � r If you miss the open house, the AL '. G" r posterboards will be available for ..'=ir viewing at DTSC EnviroStor Database and the Ascon website Purpose of cleanup This cleanup project will ensure the protection of human health and the environment by properly managing the Site and preventing potential future offsite impacts. Air quality monitoring has been conducted throughout the restart cleanup effort since November 2024. Air monitoring has shown that volatile organic compounds (VOCs) and dust levels have remained well below health protective action levels. The Site will be a fenced open space with no future development planned. Cleanup progress Completed work: • More than 100,000 cubic yards of material have been dug up and consolidated into the Site interior. • Ascon brought more than 28,000 cubic yards of clean soil to the landfill for the construction of an engineered cap and access road. • 24/7 air monitoring on and offsite has been conducted since the restart of the project in November 2024, and results show it is protective of public health. Ascon remains in compliance with the project's SCAQMD permits. State of California I The Department of Toxic Substances Control (DTSC) Page 1 of 2 Community Update: Ascon Landfill Site (continued) We are here Ascon installs permanent DTSC and Ascon Ascon performs final Ascon installs fencing along Ham iton finalize Restart Work remedy work with an engineered Ave.and Magnolia St. Plan,and DTSC holds excavation and grading cover(cap) and performs Final a community meeting 6 months remaining* I -7 months I Remedy closeout work -3 months 'Information through September 4,2025 Upcoming work: What's next • Continuing excavation and Site improvement to DTSC is committed to keeping the community install an engineered cap. informed on all Site work. Please join DTSC for an • Building the essential landfill gas monitoring and in-person community open house on the ongoing collection system, stormwater drainage, and cleanup work at the Ascon Landfill Site. At this groundwater monitoring wells. open house, the community can learn more about • Constructing the approved engineered cap with the Ascon project Final Cleanup work progress. clean soil, protective heavy-duty plastic barriers You will be able to ask questions and engage with and native plant cover to safeguard the surrounding the DTSC and Ascon teams. There will not be a communities and the environment. formal or virtual presentation at this meeting. • Removing the perimeter Site barrier wall along Hamilton Avenue and Magnolia Street. Then, Learn more about the project permanent fencing will be installed. Ascon Landfill Site information and project Air quality monitoring documents can be found online at: EJ-11::kr. SCAQMD permits require monitoring of dust, VOCs, and • Project Website: •_ �•�. Q www.Asconhb.com ' '' odors. Controlling these exposures is a priority during 0', ongoing cleanup work. Ascon uses odor control tools and • DTSC EnviroStor: work protocols to minimize impacts to nearby residents https://www.envirostor.dtsc.ca.gov/public/profi and park users. This includes: le report?global id=30490018 • Application of odor suppressants in high odor areas • Call: Community information line at 714-388- • Installation of additional barrier walls to minimize 1825 odors, dust, and suppressants going offsite • Daily operations are adjusted for wind speed, wind Contacts direction, and temperature to reduce community Project Manager: Nick Ta impacts Nicholas.Ta(c�dtsc.ca.gov • Continuous onsite and offsite air monitoring 714-484-5473 • DTSC staff continue to be onsite to monitor field Public Outreach: Jessica Anderson work and odor Jessica.Anderson(a�dtsc.ca.gov 714-484-5354 About us Media: Public Information Officer DTSC's mission is to protect California's people, MediaRelations(c�dtsc.ca.gov communities, and environment from toxic substances, to enhance economic vitality by restoring contaminated land, and to compel manufacturers to make safer consumer products. State of California I The Department of Toxic Substances Control (DTSC) Page 2 of 2