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Symon Jackson, CPEng, NER

Symon Jackson is a Senior Principal Civil, Geotechnical, and Tailings Engineer based in Australia with more than 29 years of experience focused on geotechnical and dam engineering, including tailings dams,…

Meggen Janes, PEng

Meggen Janes is a Principal Environmental Engineer based in Ontario with more than 25 years of environmental consulting experience focused on forensic analysis, risk assessment, permitting, remediation, and monitoring.

Thomas Jansson

Thomas Jansson is a Principal Hydrogeologist with more than 30 years of experience as an environmental consultant, focusing on Brownfield assessments and site remediation.

Derek Jelinek, PE

Derek Jelinek is a Principal Remediation Engineer based in Pennsylvania with more than 20 years of experience focused on engineered solutions to environmental challenges caused by industrial operations, petroleum refining,…

Mike Jenkins, PhD, PE

Mike Jenkins is a Senior Principal Engineer based in Florida with more than 30 years of experience focused on coastal projects.

Ronald Johnson, PE, GE

Ronald Johnson is a Senior Principal Geotechnical Engineer based in California who has been focused on the most seismically active areas of the United States throughout his career. He has…

Mark Johnson

Mark Johnson is a Senior Principal Consultant based in Maryland with more than 28 years of experience focused on transactional support, site investigation and remediation, subsurface vapor intrusion to indoor…

Lange Jorstad, PhD

Lange Jorstad, PhD, is a Senior Principal Contaminant Hydrogeologist with 25 years’ experience in the design, management and delivery of contaminated land assessment and remediation services and related corporate advisory…