Features •Presents an overview and history of MGP remediation in Massachusetts, the largest regional manufactured gas industry in the United States— the related environmental implications and techniques would be applicable worldwide. •Examines the related environmental toxins and hazards, and their environmental effects. •Explains all the phases related to gasworks cleanup, from site assessment to remediation, to redevelopment. •Discusses the toxicity of gasworks waste products, technical challenges in the cleanup process, and the processes for site cleanups under former and existing environmental laws and regulations. •Serves as a useful reference for environmental consultants, property developers, urban planners, investors, etc., who need to remediate contaminated sites. Summary The assessment, remediation, and redevelopment of manufactured gas plant (MGP) sites pose a significant technical and financial challenge to successor property owners, including municipalities and other publ