April 10, 2024

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Geosyntec Announces the Appointment of 17 New Senior Principals

The Geosyntec Family of Companies announces the promotion of 17 individuals to the position of Senior Principal. Each of these new Senior Principals has made significant contributions to delivering outstanding projects to first-class clients, developing strong relationships with those clients, building our practices, leveraging their own expertise and experience of their colleagues, recruiting outstanding staff, and working collaboratively with their coworkers.

Please join us in congratulating our new Senior Principals on achieving this milestone in their careers.

Dan LaPorte, PGeo (Ontario, CA)

Dan was promoted to Senior Principal and is a hydrogeochemist with more than 18 years of experience focused on acid mine drainage, metal leaching, mine waste, and site water management. He applies practical and innovative approaches to waste and water management and works with clients throughout all stages of the mining cycle. He exemplifies Geosyntec's core values with professional and ethical work conduct and safety focus, and he brings unique expertise for working in northern climates. Dan earned an MSc in Geological Sciences from the University of Saskatchewan and a BSc in Geology from Lake Superior State University, as well as Geological Engineering Technology and Geological Engineering Technician diplomas from Cambrian College. He is a registered Professional Geoscientist in Ontario, Saskatchewan, Newfoundland, and Labrador.

David Vance, PG (Georgia, US)

David was promoted to Senior Principal and is a geologist with more than 17 years of experience focused on ecosystem assessment and restoration. He applies river science across disciplines to help characterize geomorphic and physical processes, better understand sediment fate and transport, and design solutions that stabilize and restore stream and river systems. His work often addresses watersheds where natural flow regimes have been altered by urbanization, diversion, or damming. He is a technical leader and subject-matter expert for fluvial geomorphology and stream-bank stabilization at pipeline crossings. David earned an MS in Geology from East Carolina University and a BS in Geology from the University of West Georgia. He is a registered Professional Geologist in Georgia.

Esteban Biondi (Florida, US)

Esteban was promoted to Senior Principal and is a civil engineer with more than 25 years of experience in waterfront and coastal projects. His primary focus involves marina and waterfront planning and design, as well as resilience/working with nature, and coastal engineering, with clients largely in the international forum. He chairs the Recreational Commission of the World Association for Waterborne Transport Infrastructure (PIANC) and participates actively in Urban Land Institute (ULI) and other professional associations. Esteban earned a MA in Ocean Engineering from Oregon State University, and a Civil Engineering Degree from Universidad Católica Argentina.

Frederic Cosme, CPEng, Ir (Victoria, AU)

Fred was promoted to Senior Principal and is a civil engineer with more than 22 years of experience focused on environmental consulting and hydrogeology throughout Australia, with an emphasis on manufacturing, oil and gas, and former gasworks. He helps clients convert scientific outcomes of investigations into practical remedial engineering design considerations and tangible risk-based results. He has advanced the state of his practice, using innovative techniques to measure transient fluxes and surface-water–groundwater interactions, and he has authored and coauthored numerous book chapters, journal articles, and conference proceedings. Fred earned a degree in Geological Engineering from the University of Liege and a degree in Agricultural Engineering from Free University, Brussels. He is a registered Chartered Professional Engineer and in Australia and an Ir Civil Engineer in Belgium.

Heather Rectanus, PhD, PE (Maryland, US)

Heather was promoted to Senior Principal and is a civil engineer with 18 years of post-PhD experience focused on environmental research, development, and implementation projects. She specializes in bioremediation and monitored natural attenuation remedial strategies for CERCLA, hazardous-waste, and UST sites. She earned a PhD and an MS and in Civil Engineering from Virginia Polytechnic Institute and State University and a BA in German and a BS in Nuclear Engineering from Kansas State University. Heather is a registered Professional Engineer in Wisconsin.

Jeremy Gasser, PE (Baton Rouge, US)

Jeremy was promoted to Senior Principal and is a civil engineer with 11 years of experience as a marine construction contractor and consultant focused in the areas of civil, environmental, and geotechnical engineering. He specializes in managing coal combustion residuals and contaminated sediments; providing engineering and construction management at solid waste landfills and during plant decommissioning; designing coastal and dredging projects; and managing construction. Jeremy earned an MS in Civil and Environmental Engineering from Stanford University and a BS in Civil Engineering from the University of Wisconsin–Madison. Jeremy is a registered Professional Engineer in Alabama, Georgia, Louisiana, Mississippi, Ohio, South Carolina, Texas, and Wisconsin.

Jeremy Yeglin, PE (Texas, US)

Jeremy was promoted to Senior Principal and is a civil engineer with more than 16 years of consulting experience focused on providing multidisciplinary engineering and environmental solutions to his clients in the oil and gas, solid waste, mining, and manufacturing sectors. His work often includes remediating impacted soil and groundwater, managing compliance programs for companies, negotiating cost-effective closure strategies, and handling engineering design and permitting for solid-waste management facilities and land development projects. Jeremy earned a BS in Civil Engineering from Louisiana State University. He is a registered Professional Engineer in Texas, Oklahoma, and North Dakota.

Kathleen Harrison, PG (California, US)

Kathleen was promoted to Senior Principal and is a geologist with more than 35 years of experience focused on watershed management, stormwater-pollution prevention, erosion control, environmental permitting and clearance, and she is a significant contributor to water-resource projects across the United States. Her clients depend on her in-depth understanding of industrial, construction, and municipal National Pollutant Discharge Elimination System compliance, permitting regulations, and stormwater Best Management Practices. Kathleen is a technical expert known for strong collaboration with her clients and her colleagues. Kathleen earned a BS in Geologic Sciences from Western Washington University. She is a registered Professional Geologist in California; a Qualified Industrial Stormwater Pollution Prevention Plan (SWPPP) Practitioner, Trainer of Record; and a Qualified SWPPP Developer/Practitioner (California). In addition, she is US Army Corps of Engineers Wetland Delineation and Management Certified.

Lange Jorstad, PhD, RPGeo (New South Wales, AU)

Lange was promoted to Senior Principal and is a contaminant Hhydrogeologist with more than 25 years of experience in the design, management, and delivery of contaminated land assessment and remediation services and related corporate advisory services in Australia, the Asia Pacific, and the United States. Lange earned a PhD in Hydrogeochemistry from the University of New South Wales and a BSc in Geological Sciences from the University of California, Santa Barbara. Lange is a registered New South Wales Environment Protection Authority Accredited Site Auditor, a Certified Environmental Practitioner–Site Contamination Specialist, and a Registered Professional Geoscientist, Australian Institute of Geoscientists.

Lori Carter (Texas, US)

Lori was promoted to Senior Principal and is an environmental scientist with more than 17 years of experience focused on project development, regulatory strategy and compliance, and project life-cycle advisory services. She leads a team of environmental scientists and engineers focused on project and facility planning, permitting, and environmental, health, and safety compliance. Lori earned an MS in Environmental Science from Texas State University and a BA in Geography from The University of Texas at Austin.

Nick Yafrate, PhD, PE (Massachusetts, US)

Nick was promoted to Senior Principal and is a civil and environmental engineer with more than 15 years of experience in geotechnical engineering design, geotechnical instrumentation, and solid-waste facility services. His experience includes design, permitting, and construction quality assurance for landfills, ash impoundments, remediation sites, and dams. He has developed specialty practices and brings expertise in geotechnical instrumentation and elevated temperature landfills. Nick has provided solid waste containment services at dozens of sites across North America. In 2017, he was recognized as one of the "WASTE 360 40 UNDER 40 rising stars and young professionals within the industry." Nick earned a PhD in Civil and Environmental Engineering from the University of California and an MS in Civil and Environmental Engineering and a BS in Civil and Environmental Engineering from the University of Massachusetts. He is a registered Professional Engineer in Massachusetts, Maine, New Hampshire, and eight other states.

Phil Dennis (Ontario, CA)

Phil was promoted to Senior Principal and is a scientist with more than 23 years of experience in the environmental industry. Phil joined Geosyntec in 2001 with the charge to start the SiREM division, which officially launched in 2002. He focuses on molecular genetic testing and has led the Gene-Trac testing service area, which now includes more than 60 targets, Next Generation Sequencing, and eDNA capabilities. He is active in several of Geosyntec’s innovation and diversity, equity, and inclusion initiatives. Phil earned an MSc in Civil Engineering from the University of Toronto and a BSc in Molecular Biology and Genetics from University of Guelph.

Raphael Siebenmann, PE (Georgia, US)

Raphael was promoted to Senior Principal and is a civil engineer. He has been with Geosyntec for over 20 years and is trained in chemical fate and transport and site characterization. His field work and project management responsibilities include developing comprehensive workplans and authoring planning documents and developing remedial designs. He also executes and manages soil, groundwater, sediment, surface-water, and soil-gas sampling programs and analyzes and interprets data and results. Raphael is a subject-matter expert in enterprise data management, geographic information systems, real-time instrumentation, and artificial intelligence. Raphael earned a BS in Civil Engineering from Cornell University and is a registered Professional Engineer in Georgia.

Sandra Dworatzek (Ontario, CA)

Sandra was promoted to Senior Principal and is a microbiologist with advanced technical experience in laboratory treatability studies. She joined SiREM in 2002 and has conducted and overseen numerous bench-scale studies examining enhanced in situ bioremediation in groundwater. Among her many accomplishments, she was involved in the development of the KB-1 culture and helped move it from lab volumes to commercial volumes. In addition, she has led development of new testing, involving chemical oxidation, chemical reduction, and aerobic bioremediation and of new cultures. Sandra earned an MSc in Microbiology and a BSc in Biology from the University of Waterloo.

Seth Kellogg, PG (New Jersey, US)

Seth was promoted to Senior Principal and is a geologist with more than 31 years of experience in project management, project planning, and remedial investigations. Since joining the firm in 2018, Seth has distinguished herself as a leader in evaluating and managing sites impacted by per- and polyfluoroalkyl substances (PFAS). She coauthored the first PFAS best practices guidance for the National Groundwater Association (NGWA) in 2018 and developed and facilitated the first NGWA PFAS in Groundwater workshop the same year. Seth educates regulators and industry professionals on the challenges of managing, characterizing, and remediating PFAS and has advised congressional and state staff on PFAS policy. Seth is currently serving on the NGWA Board of Directors as Vice President for Scientists and Engineers. Seth earned an MS in Geology from Indiana University and both a BA in Geology and a BA in Environmental Studies from Alfred University. She is a registered Professional Geologist in Pennsylvania and Arkansas.

Suzanne Gabriele (Colorado, US)

Suzanne was promoted to Senior Principal and is a consultant with more than 30 years of experience developing and implementing environmental policy and management systems and evaluating environmental compliance for clients in the mining, manufacturing, and food processing industries, among others. Her work often addresses systems conforming to and certified under International Organization for Standardization (ISO) standards, and she manages numerous projects where the United States Environmental Protection Agency's compliance-focused environmental-management-system standard is required. Suzanne earned a BS in Industrial Engineering from Lehigh University.

Suzanne O’Hara, PGeo (Ontario, CA)

Suzanne was promoted to Senior Principal and is a hydrogeologist with more than 22 years of fieldwork and project management experience focusing on remediation of groundwater and soil containing recalcitrant compounds. Her many accomplishments include contributions to the Interstate Technology and Regulatory Council’s (ITRC’s) Guidance for Optimizing Injection Strategies for In Situ Remediation and ITRC Guidance for Contaminants of Chemical Concern. Suzanne has demonstrated her commitment to Geosyntec’s values in many ways, including in her work with Indigenous Peoples. Suzanne earned an MSc in Hydrogeology and a BS in Co-Op Geology from the University of Waterloo, Ontario. She is a registered Professional Geoscientist in Ontario and British Columbia, a Professional Geologist in New York, and a Qualified Person, Environmental Site Assessment as defined by O.Reg. 153/04.