[First Hit]

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Figure 2. Using the Previous HitsoilNext Hit gas data as a guide, forty-one monitor wells were installed in the underlying gravel aquifer located approximately 50 feet subsurface. Methane concentrations in the free gases liberated by water displacement exhibit good correlation with the Previous HitsoilTop gas data shown in Figure 1. Free gas concentrations in the aquifer range upwards of 98 percent by volume.