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Patrick O. Gwinn

Patrick O. Gwinn

Mr. Patrick Gwinn has more than 25 years of experience applying his expertise in human health and ecological risk assessment, water quality, fate and transport dispersion modeling, product stewardship, air toxics sampling, and hazardous waste management. He has been instrumental in developing and leading projects aimed at establishing site-specific ambient water quality criteria and pollutant discharge limits.

Marcia Greenblatt, Ph.D., P.E.

Marcia Greenblatt, Ph.D., P.E.

Dr. Marcia Greenblatt is a water resources engineer with nearly 20 years of specialized experience in hydrodynamic, water quality, and sediment investigations. She has extensive involvement in CERCLA remedial investigations and feasibility studies at large sediment sites. Her responsibilities have included design of sediment, water column, and bathymetric data collection programs and field sampling plans.

Eugene C. Revelas

Mr. Gene Revelas is a leading scientist on contaminated sediment and dredged material management issues. He is one of the few North American scientists with extensive experience in the use of sediment-profile image technology for characterizing dredged material disposal sites and benthic habitats and has applied this technology at freshwater, estuarine, and marine sites nationwide and abroad.

Avram Frankel, P.E.

Avram Frankel, P.E.

Mr. Avram Frankel is a program manager with nearly 30 years of experience working on a wide range of commercial/industrial, municipal, state, and federal sites regulated under a variety of regulatory programs. Licensed in four states, he provides clients with strategic management and technical analysis of due diligence, redevelopment, technology evaluation, remediation, and litigation matters.

Barry L. Kellems, P.E.

Barry L. Kellems, P.E.

Mr. Barry Kellems is a principal engineer and project manager with more than 30 years of consulting experience, focusing on environmental remediation of contaminated sediments, groundwater, and soils. He has prepared feasibility studies, developed cleanup action plans, and served as project manager/engineer for a broad range of in situ and ex situ treatment projects.

Bridgette R. DeShields

Bridgette R. DeShields

Ms. Bridgette DeShields has 27 years of experience and is a specialist in regulatory strategy, site investigation, site remediation, sediment and water quality management, and environmental toxicology. She has managed programs ranging from large site investigations to screening and quantitative ecological and human health risk assessments.

William Locke, P.E.

William Locke, P.E.

Mr. William Locke is a hydrologist and registered civil engineer. He has more than 25 years of experience in investigation of complex environmental systems, fate and transport assessments, remedy analysis and selection, and regulatory affairs. Mr. Locke advises a broad range of clients on scientific and engineering issues, regulatory strategy, and management of environmental assets and liabilities.