Customer Spotlight: Subsurface Environmental Solutions, LLC Using Surfer and Voxler to Model LNAPL Release

The base maintains a subsurface aircraft fueling system consisting of numerous subsurface jet fuel transmission lines, valves and piping vaults. The LNAPL release that Steve evaluated occurred when a valve seal failed resulting in discharge of approximately 9000 gallons of JP8 jet fuel from a fuel piping vault. Through excavation efforts and recovery well installation, an immediate recovery of 6000 gallons was possible around the perimeter of the vault structure. This is where SES was introduced to the project.

SES was contracted to perform a field assessment of the extent of the LNAPL, visualize the contamination plume in three dimensions, and to provide recommendations on future remediation actions if necessary. SES collected 147 soil samples in a 3D sampling array in the immediate area around the vault. The soil samples were analyzed for gasoline and diesel range organic content on- site using an ex-situ Ultraviolet Fluorescence (UVF) spectrophotomer.

You can hear SES' narrative about the project and get more details about the conceptual model creation by watching a webinar that Steve and I presented together last month. Please see our Surfer and Voxler Webinar: Groundwater Case Study – Modeling a LNAPL Release, which can be found here. Steve also presented a detailed case study of the field and analytical aspects of this project to the Massachusetts LSP Association, which can be viewed on the LSP Association Facebook page. You can find Steve and SES on Facebook here.