Forensic Analysis in Hydrogeology

Forensic hydrogeology with its interdisciplinary nature, uses environmental science/engineering, geology and hydrology to support litigation. At Bryant, we provide technical and forensic analysis to support a variety of projects within two main categories; contaminant transport and groundwater investigation/modeling.

Contaminant Transport

The intrusion of volatile organic chemicals originating from hazardous waste sites can pose a risk to human health. Evaluation of the vapor intrusion pathways enables homeowners, practitioners and regulators to determine whether vapor intrusion at a particular property might be a concern. One important step to evaluate the risk of vapor intrusion is to accurately characterize the contaminated site.

Understanding the soil properties, geological layers and subsurface environmental conditions helps to assess the potential exposure pathways. Bryant Consultants uses geophysical surveys combined with comprehensive geological and geotechnical evaluations to generate an accurate conceptual/quantitative model of the subsurface. The subsurface model can then be used to develop predictive numerical models to quantify the risk of vapor intrusion.

New studies show that methane leakage from homes and businesses is much more than the previously estimated amounts. In case of a large-scale methane leakage incident, an accurate characterization of the subsurface is necessary. Our unique subsurface characterization capabilities along with advanced modeling tools can help clients to quantify the extent and magnitude of the methane leakage as well as to explore appropriate mitigation measures.

Groundwater Investigation/Modeling

Groundwater models may be used to simulate the physics of subsurface transport processes. These models are also necessary to predict the transport of contaminants and evaluate the remediation processes.  We provide both laboratory analysis and model development to address groundwater-related issues such as:

  • Determine large-scale hydrological parameters of aquifers (storage, porosity, transmissivity, …) using in-situ tests
  • Characterize advection, diffusion and transport processes in both saturated and unsaturated soils
  • Collect and analyze soil and water samples
  • Identify the approximate footprint of a groundwater contamination plume
  • Develop local groundwater models