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Michael D'Alessandro, P.E.

Michael D'Alessandro is a Senior Principal Environmental and Civil Engineer based in Georgia with more than 25 years of experience focused on the development of environmental and infrastructure projects using…

Victor Damasceno, Ph.D., P.E.

Victor Damasceno is a Senior Principal Engineer based in North Carolina with more than 12 years of professional experience focused on geotechnical and geoenvironmental engineering related to solid waste containment…

Rebecca Daprato, Ph.D., P.E.

Rebecca Daprato is a Senior Principal Environmental Engineer based in Colorado with more than 14 years of professional experience focused on groundwater and soil site assessments, remedial system technology evaluations,…

Helen Dawson, Ph.D.

Helen Dawson is a Senior Principal Civil and Environmental Consultant based in Washington, D.C. with more than 30 years of experience focused on private practice, academia, and public service.

Rula Deeb, Ph.D., BCEEM, PMP

Rula Deeb is a Senior Principal based in California with more than 25 years of experience focused on private practice and academia addressing the cross-media fate and transport of contaminants…

Mary deFlaun, Ph.D., BCES

Mary deFlaun is a Senior Principal environmental microbiologist based in New Jersey with more than 30 years of experience remediating recalcitrant organics and metals, including monitored natural attenuation (MNA), enhanced…

Jim Deitsch, Ph.D., P.E.

Jim Deitsch is a Principal Engineer based in Georgia with more than 25 years of experience focused on site remediation, remediation system design, water and wastewater treatment system design, and…

Todd DeJournett, Ph.D., P.E.

Todd DeJournett is a Senior Engineer based in Minnesota with more than 15 years of professional experience focused in the areas of industrial water/wastewater treatment, drinking water treatment, aquatic chemistry,…

Jamie deLemos, Ph.D.

Jamie deLemos is a Senior Principal based in Massachusetts with more than 15 years of experience focused on soil and aqueous geochemistry and contaminant forensics.

Peter de Haven, P.E.

Peter de Haven is a Senior Principal Engineer based in North Carolina with 20 years of experience focused on site characterization, data management and analysis, numerical modeling, and both the…

Lucas de Melo, Ph.D., P.E.

Lucas de Melo is a Senior Principal Engineer based in Maryland with more than 20 years of experience in dams and mining related projects, geotechnical design and field studies, risk…

Jon Dickinson, P.E.

Jon Dickinson is the company's Chief Financial Officer and Senior Vice President for Corporate Services. As CFO, Jon serves as a member of Geosyntec's Executive Committee responsible for strategic guidance,…

Paul Dockweiler, CPG, CEM

Paul Dockweiler is a Senior Mining Geologist based in Nevada with more than19 years of experience focused on the development and start-up of hardrock mining operations.

Peter Dollar

Peter Dollar is a Senior Consultant based in Ontario with more than 30 years of experience focused on site characterization, remediation strategy, remedial design and implementation, and risk management. He…

Lane Dorman, P.G.

Lane Dorman is a Senior Hydrogeologist based in Florida with more than 12 years of professional experience focused on the assessment and remediation of arsenic, coal combustion residuals (CCR), and…

Lydia Dorrance, Ph.D.

Lydia Dorrance is an Environmental Scientist based in California with more than 10 years of experience focused on geochemistry, environmental forensics, and litigation support.

Jamey Dotson, P.E.

Jamey Dotson is a Principal Engineer based in Tennessee with more than 17 years of professional experience focused in the areas of civil, environmental, and geotechnical engineering; program management; and…

Scott Drew, LSRP, LSE

Scott Drew is a Senior Principal Environmental Scientist based in New Jersey with more than 25 years of experience focused on the fields of environmental technology, site remediation, and environmental…

Neal Durant, Ph.D.

Neal Durant is a Senior Principal Consultant based in Washington, D.C. with more than 28 years of experience investigating, remediating, and managing complex contaminated sites.