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Greg Corcoran, P.E.


Site Investigation and Remediation

Subsurface Vapor Intrusion into Indoor Air

Waste Containment Facility Permitting and Design

Geoenvironmental Containment/Cleanup Design

Geotechnical Infrastructure/Foundation Design

Brownfields Redevelopment Planning and Design

Industrial Water Supply/Wastewater Treatment Planning and Design

Erosion and Sediment Control


M.S., Civil Engineering, Drexel University, 1994

B.S., Civil Engineering, Drexel University, 1992

Primary Disciplines:
Construction Management, Geoenvironmental Engineering, Geotechnical Engineering,

Greg Corcoran, PE, is a principal civil engineer based in California who focuses on the design, construction, and operation of engineered systems for waste containment facilities and Brownfields sites impacted by the presence of contaminants in soil, soil gas, and groundwater.

During his more than 20 year career, he has become a recognized national expert in the design and construction of liner and cover systems for municipal, industrial, and hazardous waste containment facilities. This design and construction experience includes more than 120 landfill cells, final covers, and liquid impoundments, including mill tailings and mine water, at sites throughout the United States. In addition, he is experienced in the application of remediation technologies such as vapor barriers, soil vapor extraction, dual phase extraction, pump and treat, excavation and removal, chemical oxidation, bioaugmentation, and natural attenuation. He has applied these remediation technologies at more than 30 locations across the country, many as part of Brownfields site redevelopment initiatives.

Greg continues to advance the state-of-the-practice in the area of closed landfill site redevelopment. He is the co-developer of a patented system designed to detect and prevent migration of subsurface gases into buildings. Greg serves on several American Society of Testing and Materials (ASTM) D35 subcommittees for preparation and approval of ASTM standards and test methods relating to geosynthetic materials.

Greg is a registered professional engineer in California and other states. He holds a California General Engineering Contractors License and a Hazardous Substances Removal Contractors License allowing him to deliver remediation system projects through the design/build/operate process.

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