Exploring fractured rock cleanup using data mining and a new remediation model

There has been increasing recognition that matrix diffusion, where groundwater contaminants first diffuse into and then subsequently out of low permeability geologic media over decades, is a key impediment to complete remediation of contaminated sites. While much of the basic and applied matrix diffusion research has focused on unconsolidated media, many fractured rock sites are also vulnerable to the pernicious effects of matrix diffusion. (author)