Todd Hagemeyer, P.G.

Todd Hagemeyer is a Senior Principal Hydrogeologist based in Georgia with more than 25 years of experience focused on development of environmental management solutions for the manufacturing and service facilities…

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…

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

Brian Hitchens is a Senior Principal Hydrogeologist based in California with more than 20 years of experience focused on the assessment and remediation of polychlorinated biphenyls, chlorinated solvents, and heavy…

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;…

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,…

Yvana Hrovat, P.E.

Yvana Hrovat, P.E. is a Principal Engineer based in California with more than 16 years of professional experience as a project manager, water resources engineer, environmental scientist and compliance analyst…

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.

Amer Hussain, P.E.

Amer Hussain is a Principal Environmental Engineer based in California with more than 25 years of experience focused on groundwater assessment and remediation, regulatory compliance, and permitting. He specializes in…