Fig. 2. Waveforms collected with a profiling probe with 20-cm long target rods centered at a 90-cm depth during the advance of a 0.67 g L^-1 KCl tracer step (electrical conductivity [EC] = 0.142 S m^-1) applied at a rate of 0.0036 cm s^-1 following steady-state infiltration with municipal water (EC = 0.040 S m^-1). Waveforms are labeled with the elapsed time since the beginning of application of the tracer step.

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