CSM Example - DNAPL and Waterloo APS Transects

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Complex DNAPL site with bidirectional groundwater flow, driven by tidal forces. A customized model was created for this intricate site, where active litigation is ongoing. Historical analytical data, meticulously maintained in a well-organized database format, significantly expedited the development of the 3D Conceptual Site Model (CSM). Python programming played a crucial role in automating the creation of multiple EVS models for PCE and its seven degradation products. Initial CSM analysis pinpointed data gaps that necessitated additional characterization using the Waterloo Advanced Profile System (APS). Four transects were successfully completed along the fence diagrams provided, yielding valuable insights into site conditions. In addition to 3D visualization tools, a real-time ArcGIS-based online mapping platform was deployed and utilized to post real-time data collection during the APS investigation and web-based planning calls. The resulting models and online GIS played a pivotal role in securing approval from multiple regulatory agencies and stakeholders, as well as informing remedy evaluation and selection.