The U.S. Environmental Protection Agency (USEPA) is committed to the identification and resolution of groundwater issues affecting the remediation of contaminated sites. The USEPA has identified the transport, fate, characterization, and remediation of light non-aqueous phase liquids (LNAPLs) in the environment as an issue of concern.
LNAPLs are hydrocarbons that exist as a separate, immiscible phase when in contact with water, that affect groundwater quality at numerous sites across the country. In general, LNAPLs represent potential long term sources for continued groundwater contamination. LNAPLs have the ability to transport through porous media depending on parameters such as density, viscosity, interfacial tension, capillary pressure, saturation and residual saturation, and relative permeability. Challenges include the prediction of LNAPL transport, distribution, and migration; the fate of LNAPL in the subsurface; LNAPL site characterization; and LNAPL recovery and/or remediation.
This course is applicable to engineers involved with the design, construction, operation, and monitoring phases of site remediation where LNAPLs are present.
In order to receive PDH credit for this course, the reader must pass a multiple-choice quiz consisting of twenty (20) questions.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- This course is intended to provide you with the following specific knowledge and skills
- Understanding of LNAPL physical and chemical properties
- Understanding of LNAPL transport through porous media
- Understanding of the fate of LNAPLs in the subsurface
- Considerations and methods for LNAPL site characterization
- Considerations and methods for LNAPL remediation
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
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