Manufactured gas plants (MGPs) operated from as early as 1820 through the mid-1900s throughout much of the United States. They utilized various industrial processes to essentially generate gas from coal for residential, commercial and industrial uses such as lighting and heating. These industrial processes also generated various byproducts and wastes including tars, sludges, lighter oils and oxide wastes. Many of the byproducts and wastes eventually found their way into the surrounding environment. Contaminants in these materials include but are not limited to: polycyclic aromatic hydrocarbons (PAHs), cyanide, benzene, heavy metals and phenols.
D&B has completed approximately 30 assignments at former MGP sites throughout New York State in the last 15 years and is thoroughly familiar with NYSDEC’s protocols and regulations governing such sites. Furthermore, we have extensive experience interfacing with the NYSDEC MGP Remediation Program project managers and field representatives. D&B has completed remedial investigations, interim remedial measure implementation, remedial design assignments and remedial construction oversight of projects at former MGP sites in support of both National Grid (formerly KeySpan Corporation) and Consolidated Edison Company of New York, Inc.