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Back to SearchA new Interstate Technology and Regulatory Council (ITRC) guidance document aimed at aiding the understanding, cleanup, and management of Light Non-Aqueous Phase Liquid (LNAPL) at impacted sites of various uses and complexities has been released.
The presence of LNAPL can create challenges at any site. In the subsurface, LNAPL can be difficult to assess or recover and can lead to human health, ecological risk, and migration concerns.
The guidance can be used for any LNAPL site regardless of size and site use and provides a systematic framework to develop a comprehensive LNAPL Conceptual Site Model (LCSM) for the purpose of identifying specific LNAPL concerns; establish appropriate LNAPL remedial goals; select remedial technologies that will best achieve the LNAPL remedial goals for a site; and evaluate the implemented remedial technologies to measure progress toward an identified technology specific endpoint.
Updated over two years, this guidance builds upon and supersedes both previous ITRC LNAPL guidance documents in an updated, web-based format, and can be accessed at https://lnapl-3.itrcweb.org/ .
Matt Rousseau, Senior Environmental Engineer in GHD’s Windsor office contributed to the development of this new document, and can be contacted with any questions about GHD’s LNAPL services and the guidance document.