About

The Ascon Site is a 38-acre property in Huntington Beach, California that operated as a permitted landfill from 1938 to 1984. During the oil boom in Huntington Beach, the Site received drilling waste from oil production, and later from the disposal of construction debris and industrial waste.

The Ascon Site is a 38-acre property in Huntington Beach, California that operated as a permitted landfill from 1938 to 1984. During the oil boom in Huntington Beach, the Site received drilling waste from oil production, and later from the disposal of construction debris and industrial waste.

Since 2002, our team of experts and professionals have been conducting Site remediation efforts under the oversight of the California Department of Toxic Substances Control (DTSC). We are also working in coordination with the City of Huntington Beach, the South Coast Air Quality Management District and the Santa Ana Regional Water Quality Control Board.

Our team brings decades of experience working on challenging cleanup projects throughout California and beyond. Our professionals, in their respective fields of environmental science, public health, engineering, geology, hydrogeology and hazardous waste cleanup, are committed to a cleanup that is sensitive and mindful of the community in which they work.

See our Cleanup Activities to learn more about what’s been done and what we are doing now.

Frequently Asked Questions

It was utilized as a licensed landfill, permitted by the City of Huntington Beach. It operated from 1938 to 1984, when the landfill was closed. The landfill originally received drilling waste from oil production in the Huntington Beach area, during the region’s oil boom. Industrial and oil field wastes were disposed of at the landfill until 1971.

Ascon is an inactive landfill that is being remediated under DTSC’s oversight. The Ascon Landfill Site is not a federal Superfund site and is not listed on the U.S. Environmental Protection Agency National Priorities List. No taxpayer funds are used for the cleanup of Ascon.

Federal and state agencies use a Hazard Ranking System with a 0 to 100 score to determine if a site needs to be listed on the National Priorities List. A Hazard Ranking score of 28.5 or higher places a site on the National Priorities List.  EPA investigated Ascon and determined that it did not meet the threshold levels to be listed on the National Priorities List.

Legal Notification
Proposition 65 warning: WARNING! The Ascon Landfill Site contains one or more chemicals known to the State of California to cause cancer, birth defects or reproductive harm. Click here for more information on Proposition 65 California Health and Safety Code 25249.5.