Effective Remediation Methods for clean up of MGP Sites

Speaker:
Dr. Shala Craig, PEParsons
Pasadena, CAAbstract:Manufactured Gas Plants (MGP) were an important fuel source for most domestic and light industrial applications in 19th Century. These plants extracted the lighter components of coal/heavy oil, and after removal of impurities from the fluidized stream, transported the manufactured gas to households and the industry vial local pipe lines. Wastes generated as a result of operating these sites were usually retained on-site, buried, or applied to the land due to lack of regulatory barriers. Major residual contamination form these operations include arsenic, cyanide, and polynuclear aromatic hydrocarbons (PAHs). Many components of the PAHs are known carcinogens, for which the State of California (as well as FED EPA) have strict limits. Operation of MGP plants, which continued through out the 1800s, was stopped in the beginning of 20th Century, after discovery and the commercial use of natural gas. However, due to the persistent nature of the residual contaminants from the MGP sites, almost all contamination buried within these sites are still remaining and in need of remedial work. Utilities in Southern California are currently in the process of remedial work at these sites. The presentation will discuss technical and regulatory challenges in the process of identifying the contaminants extent and remedial work within these sites. Special technology and tools used for investigation and remediation of the sites will be presented.

Location: Kaprielian Hall (KAP) - rielian Hall, Room 156

Audiences: Everyone Is Invited

Contact: Evangeline Reyes