GHD

GHD (previously Conestoga-Rovers & Associates) has relied on C Tech’s Earth Volumetric Studio for over 20 years on hundreds of projects, from groundwater flow modeling and geologic characterization to 3D contamination visualizations that have been instrumental in reaching settlements in litigation and communicating complex environmental systems to agencies and the public.

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Studio Applications at GHD

Topographic Relief & Aerial Photography — High-resolution topographic models integrated with digital aerial photography for site context and presentation.

Groundwater Flow & 3D Modeling — Groundwater flow regimes and 3D modeling results that communicate subsurface dynamics clearly.

Above-Ground Facilities — Buildings, storage areas, and surface infrastructure modeled in full 3D context.

Below-Ground Infrastructure — Underground storage tanks, sewers, and subsurface utilities integrated into site models.

3D Geologic Models — Block and fence diagrams from borehole data, depicting stratigraphic and structural geology.

Contaminant Plumes Over Time — Groundwater plumes and changes in groundwater chemistry visualized through time to demonstrate trends and remediation progress.

In the Field

Litigation and Environmental Communication

Three-dimensional visualizations produced with Studio have proven extremely effective for understanding and communicating complicated environmental systems to GHD's clients. In many cases involving litigation, 3D visualizations of subsurface contamination have been instrumental in reaching settlements with plaintiffs. Visualizations have also been a great asset in presentations to both agencies and the public.
1,2-dichloroethane groundwater contaminant plume in an Ohio bedrock valley aquifer
1,2-dichloroethane groundwater contaminant plume in an Ohio bedrock valley aquifer. Detailed maps showing highways, roads, and rivers enhance the visualization.
Paleozoic sedimentary bedrock layers eroded by glacial processes
Paleozoic sedimentary bedrock layers eroded by glacial processes, modeled from borehole log data.

"Three-dimensional visualizations are extremely effective for understanding and communicating complicated environmental systems for our clients. In many cases involving litigation, three-dimensional visualizations of subsurface contamination have been instrumental in reaching settlements with plaintiffs."

— Nicholas Fitzpatrick, M.A.Sc., P.Eng., P.E., GHD

Oak Ridges Moraine — Regional Hydrogeology

The Oak Ridges Moraine in Ontario, Canada was created when a weakening ice sheet split during the last great ice age nearly fifteen thousand years ago. The interlobate moraine was formed between the Simcoe lobe to the north and the Ontario lobe to the south. Known as southern Ontario's rain barrel, its permeable sands and gravels collect, store, filter, and release water to over 65 watercourses flowing north and south into Georgian Bay, Lakes Simcoe, Scugog, Rice, and Ontario. Recent work by the Geological Survey of Canada has focused on understanding the hydrogeology of the moraine using Studio's 3D modeling capabilities.
Oak Ridges Moraine geological model
3D geological model of the Oak Ridges Moraine, Ontario — created in collaboration with the Geological Survey of Canada to understand the hydrogeology of the moraine system.

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