Dakota Technologies, Inc. products

Dakota`s UVOST product efficiently delineates petroleum, oil, and lubricant (POL) contaminants in the subsurface. All the usual forms of POLs, including; gasoline, diesel fuel, jet fuel, and hydraulic fluids, can be detected via the fluorescence response of their polycyclic aromatic hydrocarbon (PAH) constituents. The fluorescence signal scales proportionally with NAPL concentration. (UVOST struggles to detect high-PAH content NAPLs such as tars, bunkers, etc. - See TarGOST for these `heavies`). UVOST`s LIF technique, in conjunction with direct push deployment, yields a detailed three-dimensional map of the NAPL distribution, in real time - offering a true `seek and find` adaptive site characterization capability as promoted by U.S. EPA`s TRIAD approach.

Dakota Technologies is pleased to announce the availability of our Electrical Conductivity (EC) instrument, a complimentary module for UVOST, TarGOST, and Soil Color (SCOST). Different soil types will conduct electricity differently depending on particle size and mineralogy. For example, clays generally will have high conductivity while gravels will have low conductivity. By logging EC with Dakota’s optical screening tools, you can develop a site wide model of source pollution and unconsolidated stratigraphy, two key components to predicting mobility.

Dakota`s UVOST product efficiently delineates petroleum, oil, and lubricant (POL) contaminants in the subsurface. All the usual forms of POLs, including; gasoline, diesel fuel, jet fuel, and hydraulic fluids, can be detected via the fluorescence response of their polycyclic aromatic hydrocarbon (PAH) constituents.

The Dye-enhanced laser induced fluorescence system (DyeLIF) tool is a new site characterization technology that facilitates rapid, cost-effective 3-dimensional (3-D) delineation of residual chlorinated solvent DNAPL in the subsurface. DyeLIF is based on combining time-resolved LIF technology with the injection of a fluorescent dye ahead of the window to render non-fluorescent NAPLs fluorescent in-situ. This new technology has potential to rapidly delineate DNAPL source zones at sites where direct push is feasible, significantly improving prospects for targeted remediation. See links in Resources panel on this page for details regarding an ESTCP-funded technology demonstration conducted at a Formerly Used Defense (FUD) facility in Massachusetts in Fall 2013 (Geoprobe® delivery) and again in March 2014 (CPT delivery).