Todd Hagemeyer, P.G.

Todd Hagemeyer is a Senior Principal Hydrogeologist based in Georgia with more than 30 years of experience developing environmental management solutions for properties impacted by a wide range of contaminants…

Cheryl Halim, Ph.D.

Cheryl Halim, Ph.D., is a Principal Environmental Engineer with more than 16 years of experience in environmental assessment and remediation, risk assessment and asbestos assessment and mitigation.

Mark Hanna, Ph.D., P.E., LEED AP

Mark Hanna is a Senior Principal Water Resources Engineer based in Southern California with more than 25 years of experience focused on water and natural resources.

Kathleen Harrison, P.G. QSP, QSD, QISP, ToR, REA

Kathleen Harrison is a Principal Geologist based in California with more than 30 years of experience focused on watershed management, stormwater pollution prevention, and erosion control. She is a significant…

Phil Harvey, P.G.

Phil Harvey is a Senior Principal Hydrogeologist based in Missouri with more than 38 years of experience focused on the evaluation and remediation of contaminated sites. Phil has assisted clients…

Elisabeth Hawley, P.E.

Elisabeth Hawley is a Senior Consultant based in northern California with 16 years of experience advancing environmental remediation projects involving site characterization, fate and transport, remediation, strategies to achieve site…

Michael Hayes, P.E.

Michael Hayes is a Principal Civil Engineer based in Pennsylvania with more than 25 years of experience focused on water and wastewater treatment; pumping systems and pump stations; remediation of…

Anica Haynes

Anica Haynes is a Principal Environmental Permitting and Planning Practice Lead based in Louisiana with more than 20 years of experience focused on technical and project management, primarily in the…

Mark Heaney

Mark is a Senior Principal Consultant based in New York with more than 30 years of experience supporting clients in environmental, health, and safety (EHS) regulatory compliance as well as…

Tamara Hebeler, P.E.

Tamara Hebeler is a Principal Engineer based in Georgia with more than 20 years of experience focused on engineering design for several large geotechnical, remediation, and waste management projects including…

Dan Heidenreich, CPG

Dan Heidenreich is a Senior Consultant Geologist based in Colorado with more than 20 years of experience focused on GIS data management and mapping. He also conducts 3D site visualizations,…

J. Chris Herin, P.G.

J. Chris Herin is a Senior Principal Hydrogeologist practitioner in the field of environmental risk management and minimization based in Florida with more than 30 years of environmental consulting experience,…

Nathan Higgerson

Nathan Higgerson is a Principal based in Missouri with more than 18 years of experience in both the consulting and private industries focused on fossil fuel and renewable power, mining,…

Dave Himmelheber, Ph.D., P.E.

Dave Himmelheber is a Principal Engineer based in New Jersey with more than 17 years of experience with contaminated sediments focused on site investigations and remedial design for complex, multiple…

Brian Hitchens, P.G., CHG, R.G.

Brian Hitchens is a Senior Principal Hydrogeologist with more than 20 years of experience focused on site assessment and remediation, contaminated sediment management, and litigation support.

Beau Hodge, P.G.

Beau Hodge is a Senior Principal Geologist based in North Carolina with more than 25 years of experience focused on environmental site investigation and remediation with a focus on recalcitrant…

John Hollar, P.E.

John Hollar is a Principal Civil and Environmental Engineer based in Georgia with more than 25 years of experience advising a variety of industrial, power, and government clients in the…

George Hollerbach, P.E., BCEE, CSP

George Hollerbach is a Senior Principal Engineer based in New Jersey with more than 35 years of experience focused on water and wastewater, remediation, construction management, environmental health and safety…

Terence Holman, Ph.D., P.E.

Terry Holman is a Senior Principal Engineer with more than 25 years of professional experience focused on the areas of: geotechnical and geostructural engineering; design; construction management; specialty geotechnical construction;…

Chase Holton, Ph.D., P.E.

Chase Holton is a Senior Environmental Engineer based in Colorado with more than 10 years of research and consulting experience focused on contaminant fate and transport, including assessment and mitigation…

Michael Houlihan, P.E.

Michael Houlihan is a Senior Principal Engineer based in Maryland with more than 30 years of experience focused on industrial and municipal waste management, waste containment system design, geotechnical engineering,…

Christopher Hunt, Ph.D., P.E., G.E.

Christopher Hunt is a Senior Principal Geotechnical Engineer based in California with more than 20 years of experience focused on geotechnical and geoenvironmental projects.

Troy Hunt, P.E.

Troy Hunt is a Senior Principal Engineer based in Nevada with more than 30 years of experience focused on the successful delivery of public infrastructure through innovative methods.

Amer Hussain, P.E.

Amer Hussain is a Senior Principal Environmental Engineer based in California with more than 25 years of experience focused on water resources development, water quality, groundwater assessment and remediation, regulatory…

Paula Hutchison, P.Eng. QPESA

Paula Hutchison is a Principal Engineer based in Ontario with more than 14 years of environmental engineering experience assisting clients in Canada and the United States.