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DEMONSTRATION AND VALIDATION OF A FRACTURED ROCK PASSIVE FLUX METER
Hatfield, K.
ESTCP Project ER-200831, 195 pp, 2015
A new closed-hole passive sensing technology for fractured media, the Fractured Rock Passive Fluxmeter (FRPFM), provides simultaneous measurement of 1) the presence of flowing fractures; 2) the location of active or flowing fractures; 3) active fracture orientation, i.e., dip and azimuth; 4) direction of groundwater flow in each fracture; 5) cumulative magnitude of groundwater flux in each fracture; and 6) cumulative magnitude of contaminant flux in each fracture. Other technologies exist to measure 1, 2, and 3 above; however, the FRPFM is the only technology that also measures 4, 5, and 6. Field tests were conducted at two chlorinated solvent-contaminated fractured rock sites. In 16 field tests, the FRPFM achieved the standard in each of the six quantitative performance objectives. A cost assessment indicates that FRPFM implementation is competitive with alternative technologies, none of which can provide the full suite of FRPFM capabilities. A key distinction, however, is that the FRPFM generates high-resolution measures over a specified interval and is best used for characterizing targeted borehole depth intervals, not for screening conditions over an entire borehole. Enviroflux Inc. has exclusive rights to commercialize the FRPFM technology. https://www.estcp.com/content/download/34821/335493/file/ER-200831-FR.pdf
ESTCP Project ER-200831, 195 pp, 2015
A new closed-hole passive sensing technology for fractured media, the Fractured Rock Passive Fluxmeter (FRPFM), provides simultaneous measurement of 1) the presence of flowing fractures; 2) the location of active or flowing fractures; 3) active fracture orientation, i.e., dip and azimuth; 4) direction of groundwater flow in each fracture; 5) cumulative magnitude of groundwater flux in each fracture; and 6) cumulative magnitude of contaminant flux in each fracture. Other technologies exist to measure 1, 2, and 3 above; however, the FRPFM is the only technology that also measures 4, 5, and 6. Field tests were conducted at two chlorinated solvent-contaminated fractured rock sites. In 16 field tests, the FRPFM achieved the standard in each of the six quantitative performance objectives. A cost assessment indicates that FRPFM implementation is competitive with alternative technologies, none of which can provide the full suite of FRPFM capabilities. A key distinction, however, is that the FRPFM generates high-resolution measures over a specified interval and is best used for characterizing targeted borehole depth intervals, not for screening conditions over an entire borehole. Enviroflux Inc. has exclusive rights to commercialize the FRPFM technology. https://www.estcp.com/content/download/34821/335493/file/ER-200831-FR.pd
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