Although the focus of this study was on steady-state XAS, the observed sensitivity of the 533 eV feature to e --oxygen distances suggests that time-resolved XAS could be used to probe changes in the solvation structure of e - (aq) during its formation or following its photoexcitation. Such efforts will complement recent time-resolved photoelectron spectroscopy studies, providing molecular-level details of the formation and decay of this most interesting species.