Slater, L., F. Day-Lewis, J. Robinson, and T. Johnson.
ESTCP Project ER-201118, 166 pp, 2015

The performance objectives of this demonstration focused on evaluating (1) fracture network characterization using a fractured rock geophysics toolbox (FRGT); (2) autonomous monitoring of amendment delivery and subsequent contaminant biodegradation using geophysical technologies that sense beyond the borehole; (3) application of an "informed" inversion strategy to improve the geophysical imaging of fractured rock settings relative to what can currently be achieved with off-the-shelf functionality; and (4) identification and monitoring of geophysical attributes as "soft" measures of progress of DNAPL biodegradation in fractured rock. Specific performance objectives were largely met, although the physical characteristics of the primary demonstration site (the Naval Air Warfare Center in West Trenton, New Jersey) limited the performance of some FRGT methods. The primary benefit of the FRGT is the ability to provide information on variations in physical properties and the fate of amendment injections into fractured rock beyond the vicinity of local borehole observations. https://www.estcp.com/content/download/36210/346201/file/ER-201118-FR.pdf