Superfund Site Profile

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The 75-acre Monsanto Corp. (Augusta Plant) site is located in an industrial park in Richmond County, Augusta, Georgia. The facility is an active chemical plant that has been operating since 1962. Prayon, Inc. has owned and operated the plant since 1999. Before that, Monsanto Corporation (Monsanto) ran the site. Both companies are potentially responsible parties (PRPs). The plant manufactures phosphoric acid. This process generates several waste products, including arsenic trisulfide. Monsanto used two small on-site landfills to dispose of solid waste and sludges containing arsenic trisulfide. EPA placed the site on the Superfund program’s National Priorities List (NPL) in 1984 because of contaminated groundwater resulting from facility operations. EPA, the Georgia Environmental Protection Division (Georgia EPD) and the site’s potentially responsible parties (PRPs) have investigated conditions and taken steps to clean up the site in order to protect people and the environment from contamination. Contamination does not threaten people living and working near the site. Both residents and businesses use the public water system for drinking water. EPA deferred the site to the Resource Conservation and Recovery Act (RCRA) program under state oversight in 1998. By treating groundwater and undertaking Five-Year Reviews, EPA, Georgia EPD and the site’s PRPs continue to protect residents and the environment from site contamination.