PTAC invites all members to an exclusive virtual event hosted in collaboration with Environmental Material Science Inc, on January 19, 2023, from 9:00 am to 10:00 am. Join Dr. Steven Siciliano, CEO, of EMS, as he outlines how Western Canadian soils create complex problems with their high clay and calcium carbonate content and present a complex remedial challenge when it comes to petroleum hydrocarbon impacts encountered at oil and gas sites. EMS will also provide insight into Light Non-Aqueous Phase Liquids (LNAPLs) and how they move through minute sand lenses and the impermeable clay layers and create contamination pockets that can be missed through traditional assessment techniques. Soil conditions create challenges, but so does the regulatory environment. Site managers often have limited options: a considerable upfront cost to remove the contaminants or monitor groundwater semi-annually to track LNAPL plume dynamics. Unfortunately, a snapshot in time only sometimes accurately quantifies the soil, groundwater and LNAPL conditions leading to conclusions that are not truly representative of the site. PTAC members will be provided insight into how to deal with these limitations, eliminate data gaps, and ultimately close sites, as environmental managers increasingly turn to high-density data streams and AI-assisted technology. Members will also be shown how high-density, real-time data allow site managers to track changes in plume extent or remedial success at the moment. Continuous data streams game changing opportunity for site owners to analyze, manage, and prioritize their portfolios. EMS will showcase, Soil Sense, their latest technology which produces continuous data streams necessary to track plume stability, extent, and natural source zone depletion rates across an LNAPL plume in real-time. A Soil Sense network can be installed at a site, providing high-resolution spatial and temporal quantification of LNAPL plume dynamics (extent and persistence), Natural Source Zone Depletion (NSZD) metrics, and remediation system effectiveness. Soil Sense networks have been deployed at fourteen sites ranging from decommissioned oil and gas sites, former gas bars, and active sites such as refineries and storage terminals. The high-temporal resolution data generate robust estimates of plume areal extent, volume, mass, NSZD rates, remedial system success, ESG, and time to closure.