Anodyne, Inc.

Overview

Anodyne, Inc. is a 4-acre former industrial facility in North Miami Beach, Miami-Dade County, Florida. It operated from 1960 to 1978 making decorative trim, control panels, and equipment dials. Waste discharges onto the ground and possible deep-well disposal contaminated the Biscayne Aquifer, the primary drinking water source for Miami-Dade and Broward counties. EPA placed the site on the Superfund National Priorities List (NPL) in 1990.

Contamination affects both soil and groundwater. Soil contains metals such as arsenic, cadmium, chromium, lead, mercury, and nickel, along with polycyclic aromatic hydrocarbons (PAHs) and pesticides including DDT, dieldrin, and heptachlor epoxide. Groundwater contains volatile organic compounds (VOCs) including trichloroethene, tetrachloroethene, and vinyl chloride, plus metals such as cadmium, chromium, lead, and mercury. EPA divided the site into two zones. Zone 1 covers shallow metals-contaminated soil and groundwater. Zone 2 covers deeper groundwater contaminated with VOCs.

Zone 1 soil cleanup was completed in 2005. Contaminated soils were excavated, disposed of, or cleaned and returned to the site. That cleanup allows only commercial and industrial land uses, not residential, school, or daycare uses. For Zone 2 groundwater, EPA originally planned a pump-and-treat approach but determined it would not work well. A 2016 amended cleanup plan calls for enhanced biological treatment through three injection wells at depths of 140 to 160 feet, paired with monitored natural attenuation for the rest of the contamination plume. Construction on this phase began in January 2023 and is estimated to finish between June and August 2026. The site has received funding through the Bipartisan Infrastructure Law to support this work.

Human exposure to contamination is currently under control. Nearby residents and businesses use the public water system rather than local groundwater. Institutional controls include zoning restrictions and a groundwater delineation area designated by the South Florida Water Management District, which requires District approval before any new drinking water wells can be installed. Several businesses currently operate at the site, including a snack distribution center, a security firm, and a heating and air conditioning distributor. Groundwater migration is not yet fully stabilized, and construction is ongoing, so the site has not yet been deleted from the NPL.

Community members can stay involved through public notices and public meetings that EPA holds throughout the cleanup process. Anyone with questions about site conditions or cleanup activities can contact the EPA's Community Involvement Coordinator or Remedial Project Manager directly using the contact information below.