Case Studies Demonstrating The Outcome Of Integrating Nuclear Magnetic Resonance Into Conceptual Site Models

Join us on June 10, 2026 for a technical webinar regarding Case Studies Demonstrating The Outcome Of Integrating Nuclear Magnetic Resonance Into Conceptual Site Models 

Background/Objectives

For complex sites, significant characterization may be required to develop a robust understanding of the chemical distribution within heterogeneous media, identify preferential flow paths, estimate chemical transport rates, and define treatment zones for remedies. High-resolution site characterization (HRSC) tools can provide rapid, field-based, high-density data to enable more effective development of the conceptual site model (CSM).

Approach/Activities

Nuclear magnetic resonance (NMR) is an HRSC tool that has recently been adapted for use at contaminated sites to collect high-resolution hydrogeologic data. Several case studies where NMR has been applied at contaminated sites with varying geology and wide-ranging objectives will be presented to demonstrate the advantages of using NMR for HRSC supported CSM development.

Results/Lessons Learned

The case studies demonstrate that NMR provided hydrogeologic insights that were not readily resolved through conventional methods alone. NMR data helped identify preferential flow intervals, support well screen placement, estimate relative hydraulic conductivity, and evaluate mobile water in the vadose zone. These applications improved subsurface interpretation, reduced uncertainty in the CSM, and provided a stronger technical basis for investigation planning and remedial design.

Presenters

KARLA LESLIE, PhD, PG Karla is a subject matter expert in environmental remediation, specializing in CSM development, high-resolution site characterization, geochemistry, and microbiology for the development, design, implementation, and optimization of innovative remedial strategies.

TODD BELANGER  Todd is a hydrogeologist and PFAS subject matter expert specializing in site-specific CSM development using regional geology, hydrogeology, environmental sequence stratigraphy, 3D geologic modeling, and data visualization to support complex environmental investigations.

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