Tamzen Macbeth

Tamzen Macbeth

15 articles
United States CDM Smith

Biography

Dr. Tamzen Macbeth is the Remediation Practice Leader at CDM Smith, where she leads the firm’s environmental remediation practice, providing strategic and technical leadership across a broad, multidisciplinary portfolio of remediation services. In this role, she oversees and integrates expertise spanning multiple technical disciplines supporting complex soil, groundwater, sediment, and emerging contaminant remediation programs for federal, state, and private-sector clients. Dr. Macbeth is an internationally recognized remediation expert with deep experience bridging scientific research, engineering design, and field implementation, and she has led or supported numerous high‑profile remediation projects involving hazardous waste sites and emerging contaminants, including PFAS.

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Showing 15 of 15
Adaptive Injection Strategies for Zero-Valent Iron and In Situ Bioremediation in a Complex Geologic Setting: Lessons Learned and New Techniques
Kimberly Myers CDM Smith
Tamzen Macbeth CDM Smith
Emma Ehret CDM Smith
Ian Lo CDM Smith
+3 more
Attachment
C3.: Adaptive Site Management: Lessons Learned for Site Characterization and Remedy Implementation (Platform)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
From Spreadsheets to Scripts: Optimizing Data Analytics Workflow with an R Shiny Application for a Complex Groundwater Site
Emma Ehret CDM Smith
Riley Cotter CDM Smith
Chapin Storrar CDM Smith
Karen Kelley CDM Smith
+4 more
Attachment
B5.: Data Analytics: Use of Machine Learning and Artificial Intelligence Tools for Improved Analysis, Optimization and Decision Making (Platform)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Design, Implementation, and Assessment of a Slurry Injection Pilot Study to Treat a Low Permeability Aquifer Contaminated with TCE
Emma Ehret CDM Smith
Tamzen Macbeth CDM Smith
Michael Lamar CDM Smith
Kimberly Myers CDM Smith
+2 more
Attachment
C7.: Low-Permeability Zone Treatment Approaches, Permeability Enhancements, and Case Studies (Platform)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Recent Advancements in Mechanistic Understandings of PFAS Fate and Transport in the Vadose Zone
John Stults CDM Smith
Charles Schaefer CDM Smith
Tamzen Macbeth CDM Smith
Christopher Higgins Colorado School of Mines
+2 more
Attachment
I4.: PFAS Fate and Transport Properties (Platform)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Interactive Dashboard Toolboxes with Coupled Data‑Based Mass‑Flux Models for High Resolution PFAS Conceptual Site Models
John Stults CDM Smith
Tamzen Macbeth CDM Smith
Attachment
I5.: PFAS Conceptual Site Model Approaches (Platform)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
(Group 2, Poster Board #238) Validation of a Cell-Based Screening Model for Assessing PFAS Mass Flux from the Vadose Zone to Groundwater
John Stults CDM Smith
Charles Schaefer CDM Smith
Tamzen Macbeth CDM Smith
Dung Nguyen CDM Smith
I4. PFAS Fate and Transport Properties (Poster) Poster
I4.: PFAS Fate and Transport Properties (Poster)
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Quantity Produces Quality: The Case for Ensembles of Screening Models for PFAS in the Vadose Zone
John Stults CDM Smith
Tamzen Macbeth CDM Smith
Bo Guo University of Arizona
B6. Modeling and Monitoring Approaches to Improve Remedy Design and Implementation (Platforms) Platform Attachment
B6.: Modeling and Monitoring Approaches to Improve Remedy Design and Implementation (Platforms)
2025 Bioremediation Symposium
Evaluation of In Situ Pilot Study Impacts on a TCE Groundwater Plume: Microbial, Geochemical, and Isotopic Analyses over One Year
Emma Ehret CDM Smith
Tamzen Macbeth CDM Smith
Michael Lamar CDM Smith
William Lai CDM Smith Australia
+2 more
D1. In Situ Bioremediation Applications (Platforms) Platform Attachment
D1.: In Situ Bioremediation Applications (Platforms)
2025 Bioremediation Symposium
Optimizing In Situ Treatment Barriers: An Adaptive Strategy for a Superfund Site
Benjamin Yezuita CDM Smith
Michael Lamar CDM Smith
Tamzen Macbeth CDM Smith
Matthew Renko CDM Smith
+3 more
D3. Biobarrier Implementation and Management (Platforms) Platform Attachment
D3.: Biobarrier Implementation and Management (Platforms)
2025 Bioremediation Symposium
Panel Discussion: Turning Complexity into Clarity: AI and Analytics for Smarter PFAS CSMs
Jennifer Byrd CDM Smith
Tamzen Macbeth CDM Smith
Ashley Lesser Michigan Department of Environment, Great Lakes, & Energy (EGLE)
Gerrad Jones Oregon State University
+1 more
Panel Discussion Attachment
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Mitigation Strategies for PFAS in Stormwater: A Collection of Case Studies
Jennifer Byrd CDM Smith
Tamzen Macbeth CDM Smith
Jeffrey Bamer CDM Smith
Jeff McDonough CDM Smith
C8. PFAS-Impacted Stormwater/Surface Water Management (Platforms) Platform Attachment
C8.: PFAS-Impacted Stormwater/Surface Water Management (Platforms)
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Evaluation of Three Injection Methods for a Phased Pilot Approach to In Situ Treatment of a TCE in a Low Permeability Aquifer
Emma Ehret CDM Smith
Jennifer Byrd CDM Smith
Ben Carreon CDM Smith
Michael Lamar CDM Smith
+1 more
D3. In Situ Technologies: Lessons Learned (Platforms) Platform Attachment
D3.: In Situ Technologies: Lessons Learned (Platforms)
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Tracking PFAS: Using Advanced Analytics to Assess AFFF Source Loading into Surface and Groundwater Systems
Tamzen Macbeth CDM Smith
John Stults CDM Smith
Travis Tomaselli CDM Smith
Matt Gamache CDM Smith
+2 more
F2. Conceptual Site Models: Improvements in Development and Application (Platforms) Platform Attachment
F2.: Conceptual Site Models: Improvements in Development and Application (Platforms)
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
(Group 1, Poster Board #64) Innovative Barrier Solutions: Sealants Designed to Prevent PFAS Leaching from Concrete
Tamzen Macbeth CDM Smith
David Lutes CDM Smith
Meredith Passaro CDM Smith
Divina Navarro CSIRO
+1 more
B3. Ex Situ PFAS Treatment: Soils/Solids and Other Waste Streams (Posters) Poster
B3.: Ex Situ PFAS Treatment: Soils/Solids and Other Waste Streams (Posters)
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
(Group 2, Poster Board #213) Unveiling Hidden Insights: Tracking Particulate Amendments in Complex Aquifers with Electrical Resistance Tomography
Tamzen Macbeth CDM Smith
Ian Lo CDM Smith
Tim Johnson Pacific Northwest National Laboratory
Lirong Zhong Pacific Northwest National Lab
G8. In Situ Activated Carbon-Based Amendments: Assessing Effectiveness and Performance (Posters) Poster
G8.: In Situ Activated Carbon-Based Amendments: Assessing Effectiveness and Performance (Posters)
14th International Conference on Remediation of Chlorinated and Recalcitrant Compounds