EPA Superfund Site

HALACO ENGINEERING COMPANY

CA | EPA ID CAD009688052

About this site’s exposure pathways: As of December 2024, the Halaco Engineering Company Superfund site is considered "Insufficient Data to make Human Exposure evaluation (HEID)". Halaco Engineering Company Superfund site was finalized on the National Priorities List (NPL) on 09/19/2007. While an initial evaluation has been conducted, a final determination of the human health exposure risks has not yet been completed. EPA uses this Human Exposure status when there is insufficient data/evidence to determine whether actual or reasonably anticipated human exposures are occurring, and/or whether those exposures are above acceptable risk-based levels. The planned activities to collect sufficient information to make a human exposure evaluation include finalizing the remedial investigation, which is currently underway. Possible human exposure pathways include: soil ingestion, surface water and groundwater ingestion, and external radiation dose. Contaminants being evaluated include metals, arsenic, thorium, and ammonia. The remedial investigation includes a human health risk assessment. As part of the human health risk assessment EPA will evaluate these and other possible pathways. EPA currently anticipates that there will be sufficient data to make a site-wide Human Exposure determination in 2028 because the remedial investigation of both Operable Units is anticipated to be completed by then. EPA has completed or overseen two removal actions to limit current exposure to site contaminants and distributed flyers and made presentations at public meetings advising the community to stay off the site. An EPA Community Involvement Coordinator is assigned to the site to answer community member questions and concerns. EPA contact information is listed on the EPA website for the Halaco Engineering Company Superfund site.(https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0901242).