Superfund Site: UNITED HECKATHORN CO.
Superfund Site Profile
EPA is in the process of updating this site profile page with additional current information. Until this update is complete, please click here for additional information about this site and to view site documents. Thank you for your patience.
The 20-acre United Heckathorn Co. site is located in Richmond Harbor, California. From 1947 to 1966, several companies used the area to formulate, package and ship pesticides. These activities contaminated groundwater, soils and sediments with dichlorodiphenyl trichloroethane (DDT) and dieldrin. Following immediate actions to protect human health and the environment, the site’s long-term cleanup is ongoing.