Groundwater is a dwindling resource that is relied upon around the world. Unfortunately, industrial activities have deteriorated groundwater quality to the extent that the resource is not fit for consumption and is harmful to ecological receptors at many locations. Nearly all groundwater contamination can be treated. However, at many sites confounding conditions related to the nature of the contaminants, the geologic setting, and the dynamics of treatment escalates costs to prohibitive levels. Beginning in 2015, experts from WSP USA joined the U.S. Environmental Protection Agency (EPA) and National Ground Water Association (NGWA) initiative to promote more efficient groundwater treatment by combining multiple technologies in which each technology works within its most efficient design window. WSP’s experts went further and provided additional significant cost saving on combined remedies by advocating for the use of multi-component amendment formulations that stimulate multiple in situ degradation pathways with a single application.   Traditional combined remedies,

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