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Peter Zeeb, Ph.D., PG, LSP

Practice Specialties
Hydrogeologic Investigation/Analysis

Remedial Strategy Development

Contaminant Fate and Transport

Expert Consultation and Testimony


Ph.D., Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 1996

M.S., Civil Engineering, Water Resources, Stanford University, Stanford, California, 1991

B.A., Geology and Environmental Studies, Williams College, Williamstown, Massachusetts, 1985

Primary Disciplines:
Environmental Engineering, Environmental Sciences, Hydrogeology,

Dr. Peter Zeeb, Ph.D., P.G., LSP, is a principal hydrogeologist based in Massachusetts. He has directed investigation and remediation strategy at some of the most challenging sites in the country, including CERCLA-regulated sites in New England and the Midwest, as well as numerous state-regulated sites. 

Specializing in site investigations, modeling, pilot tests, remedial strategy development/alternatives analyses, and full-scale remedy design for more than 20 years, Dr. Zeeb serves as the technical lead for hydrogeological, chemical fate and transport, and monitored natural attenuation evaluations on project teams. Based on his experience and qualifications, he is often retained as a consulting or testifying expert for litigation matters. Among his clients are AstraZeneca, DuPont, Invensys, Shell, Merck, and others.

Dr. Zeeb has helped advance the state of the practice through authorship of guidance documents on protocols for natural attenuation demonstrations focusing on groundwater impacted by chlorinated solvents and the gasoline additive MTBE.  He has also served as a steering committee member on the Remediation Technology Development Forum (RTDF) Source Area BioRemediation (SABRe) project, an applied research and development project located in central England designed to examine the efficacy of accelerated anaerobic bioremediation as an alternative treatment for source areas contaminated with dense non-aqueous phase liquids (DNAPLs), particularly trichloroethylene (TCE).

In addition to his work on guidance documents for natural attenuation demonstrations, Dr. Zeeb has authored more than 25 publications on groundwater and soil remediation, groundwater fate and transport, and vapor intrusion.  Among these is his doctoral dissertation on the effects of small-scale subsurface features on groundwater flow and transport through wetlands and the relationship of wetland systems to glacial aquifers. As part of this work, Dr. Zeeb conducted a detailed evaluation of the geochemistry and fate and transport of arsenic released from tannery wastes in the watershed.

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Projects & Publications

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Mitigation of the Vapor Intrusion Pathway at Four Chlorinated Solvent Sites
Application of Bioremediation in Challenging Conditions
Comparison of Injection Schemes for Bioaugmentation at a TCE Site
Design of an In Situ Containment and Test Cell for Demonstrating Source Area BioRemediation (SABRe)
Project SABRE - Field-Scale Demonstration of TCE DNAPL Bioremediation
Remediation Limitations Due to Non-NAPL Source Zones: SABRE Case Study
The American Petroleum Institute Protocol for Evaluating Natural Attenuation of MTBE
Applicability of Multilevel Monitoring Well Completion Technologies for Karst Dolomite
Full-Scale Implementation of Anaerobic Bioaugmentation in an Aerobic Aquifer
Using Compound Specific Stable Isotope Analyses to Support Trichloroethene (TCE) and Methyl tert-Butyl Ether (MTBE) Biodegradation in Contaminated Subsurface Environments
Risk Management Approaches at Vapor Intrusion Sites - Chlorinated Solvents Case Studies
Geochemical and Microbiological Characterization of In Situ Reductive Dechlorination in Fractured Bedrock
Degradation of Co-Disposed Chlorinated Solvent under Anaerobic Conditions and Resulting Accelerate Degradation Rates with KB-1® Augmentation
TCE Bioremediation in a Deep Basalt Aquifer
Design and Implementation of a Pilot Test for Bioremediation of a Concentrated TCE Plume in Fractured Bedrock
Design and Construction of a Groundwater Recirculation System in Hydraulically Dynamic Fractured Bedrock
Microcosm Study of TCE Degradation by KB-1® in High Sulfate Groundwater
Efficient Three-Dimensional Characterization of TCE Transport in a Sandy Aquifer/Surface Water System
Multi-level Monitoring Well Completion Technologies and Their Applicability in Karst Dolomite
Options for Mitigation of Vapor Intrusion
Estimating the Impact of Bioremediation on DNAPL Source Area Longevity