Spectra around the H₂O lines in ESO 320-G030 observed with Herschel/SPIRE, along with sinc fits to the lines (blue curves). In all panels, the plotted wavelength range corresponds to a velocity range of ±1200 km s⁻¹. The vertical dotted lines indicate the expected central position of the lines by using z = 0.01026, as in Fig. 2. The lines are sorted by the upper-level energy (E_u) of the transition, which is indicated in each panel.