USGS Groundwater Information: Branch of Geophysics
Photo Gallery of BG Research at Fridley, Minnesota
Geophysical Monitoring of a Biostimulation
Pilot Study to Remediate Contaminated Ground Water, Fridley, Minnesota - FY2004
Figure 1. (a) Radar zero-offset slowness and (b) radar zero-offset amplitude profiles for the INJ-3 to MW-7 plane, Anoka County Riverfront Park, Fridley, Minnesota
Figure 2. Field study slowness-difference tomograms
for the MW-1 to INJ-2 and MW-7 to INJ-3 planes using the weighted
damped least-squares (WDLS) inversion method, Anoka County Riverfront
Park, Fridley, Minnesota (after Lane et al., 2004).
Figure 3. Interpreted conceptual model of the
June 2003 cross-sectional distribution of groundwater with inferred,
highly elevated total dissolved solids (TDS) (medium gray), moderately
elevated TDS (light gray), and the region where pure-phase vegetable
oil emulsion is found in the subsurface (dark gray), Anoka County
Riverfront Park, Fridley, Minnesota.