Trans Circuits, Inc. is a former circuit board manufacturing and plating facility in Lake Park, Florida. EPA added it to the Superfund National Priorities List in 2000 after finding contaminated soil and groundwater from past facility operations. Cleanup has been organized under Operable Unit 1, which covers both soil and groundwater problems at the site.
EPA identified 13 contaminants of concern across soil and groundwater. Groundwater contaminants include trichloroethene, tetrachloroethene, chloroform, arsenic, fluoride, 1,1-dichloroethane, 1,2-dichloroethene, aldrin, beta-hexachlorocyclohexane, bromodichloromethane, and polycyclic aromatic hydrocarbons (PAHs). Arsenic and benzo[a]pyrene equivalents were also found in soil. The contaminated groundwater sits beneath an area that serves as the primary drinking water source for three nearby public water supply systems, though local residents do not currently use the groundwater directly.
Cleanup actions have included removing and disposing of contaminated soil off-site, constructing a public drinking water supply well, and running a groundwater treatment system. In January 2012, EPA added anaerobic bioremediation, an in-ground method that uses microorganisms to break down contaminants. Soil cleanup met standards that allow the land to support commercial and industrial uses. Major cleanup construction finished on September 25, 2013, and the site was declared ready for anticipated reuse on February 18, 2014. Long-term groundwater monitoring and response actions are ongoing. Institutional controls are in place, including zoning restrictions that prevent residential development and South Florida Water Management District limits on groundwater well use until contaminants fall below cleanup goals. As of December 2024, one business operates at the site, employing 3 people and generating about $14.6 million in annual sales.
A five-year review was conducted on June 14, 2022, with the next review estimated between June and August 2027. The site remains on the National Priorities List. EPA and the Florida Department of Environmental Protection have led investigation and cleanup since 2001, with EPA funding cleanup using federal funds.
Community members can get involved through public notices, fact sheets, and public meetings that EPA holds as part of its community involvement process. Site documents are available at the Riviera Beach Public Library, located at 600 West Blue Heron Boulevard in Riviera Beach, Florida. EPA staff, including a Community Involvement Coordinator and a Remedial Project Manager, are available to answer questions directly.
