Clear-Well

Non-destructive UV surveys of LNAPL distributions in soils

High Resolution Site Characterization (HRSC) tools, like laser induced fluorescence (LIF) and similar probe-based technologies have been used for some time, but mostly as one-time measurements. Even if repeated, the destructive nature of these tests would reduce the reproducibility of their measurements.

E-Flux has developed a non-destructive UV-based alternative (US Patent 10,677,729 B2, PCT 200-239793A) that can be deployed at will, adding a time-dependent dimension to HRSC data.

Clear-Well is the smart alternative to monitoring wells

Monitoring wells are notoriously limited for characterizing the mass and distribution of LNAPL in the formation.

E-Flux Clear-Well is a transparent port that can be surveyed on demand using a portable instrument. Surveying the exact same locations allows for direct comparisons of data surveyed at different times.

Each survey can help you:

• Measure LNAPL distributions at the pore scale (< 20µm— about the thickness of a human hair), providing quantitation of remedy performance, natural source depletion, biogas production, LNAPL mobility and soil geochemical changes. 

• White and UV lights show detailed formation lithology overlapping the contaminant distribution.

• Our proprietary software transforms digital images into depth-dependent soil saturation profiles.

Clear-Well applications

The evaluation of LNAPL is essential for developing effective cleanup strategies, evaluating contamination risks, and monitoring the success of remediation efforts. Detailed pore-scale information will benefit the LNAPL conceptual site model, Risk Assessment, and Performance Monitoring of remediation efforts.

Our most recent technical paper

Repeatable Imaging of Soil Processes Through a Stabilized Port: Examples of (i) Soil Contaminants and (ii) Plant Root Growth