Greg Corcoran, P.E.

Greg Corcoran is a Senior Principal Civil Engineer based in California with more than 25 years of experience with a focus on the design, construction, and operation of engineered systems for waste containment facilities and brownfield sites impacted by contaminants in soil, soil gas, and groundwater.

Greg Corcoran is a Senior Principal Civil Engineer based in California with more than 25 years of experience with a focus on the design, construction, and operation of engineered systems for waste containment facilities and brownfield sites impacted by contaminants in soil, soil gas, and groundwater.


During his career, he has become a recognized expert in the design, permitting, and construction of liner and cover systems for municipal, industrial, mine, mill, and hazardous waste containment facilities. This design and construction experience includes more than 120 disposal cells, final covers, and liquid impoundments, including mill tailings and mine waste, at sites throughout the United States and the world. In addition, he is experienced in the application of remediation technologies such as vapor barriers, soil vapor extraction, dual phase extraction, groundwater pump and treat, excavation and removal, chemical oxidation, bioaugmentation, and natural attenuation. He has applied these remediation technologies at more than 75 locations around the world, many as part of brownfields site redevelopment initiatives.

To advance the state of the practice in the area of brownfield and closed landfill site redevelopment, Greg is the co-developer of a patented system designed to control 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 five states and a registered general contractor in two states, allowing him to deliver projects through design, bid, build or design, build, operate delivery methods. Greg is a registered professional engineer in five states with a California General Engineering Contractors License and a Hazardous Substances Removal Contractors License allowing him to deliver remediation system projects through the design, build, and operate process.

Contact Greg Corcoran at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-858-716-2905.

Career Summary of Greg Corcoran, P.E.

  • Specialties: Subsurface Vapor Mitigation System Design and Implementation; Solid, Industrial, and Hazardous Waste Disposal Facilities; Surface Impoundments; Brownfield Sites; Mine Reclamation
  • Practice Areas: Contaminated Site Assessment and Cleanup, Water Management, Geotechnical and Geoenvironmental Engineering, Waste Management
  • Disciplines: Civil Engineering, Construction Management, Geotechnical Engineering
  • Education: M.S., Civil Engineering, Drexel University, 1994; B.S., Civil Engineering, Drexel University, 1992
  • Registration: California P.E., C58876; Oregon P.E., 65140PE; Arizona P.E., 37705; Utah P.E., 6020077-2202; General Engineering Contractor A, California, 766859; Hazardous Substances Removal Contractor, California, 766859; Idaho P.E., 15590; Nevada A General Engineering Contractor 0087580

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