Integrated H₂O (1₁₀ − 1₀₁) intensities in different velocity intervals where Δυ = 5 km s^-1. The center velocity of the bins is indicated in each panel. Contours are in steps of 0.15 K km s^-1 and the first contour is at 0.1 K km s^-1 for all maps except the two maps at lowest velocity, where the first contour is at 0.3 K km s^-1 and the contour interval is 0.3 K km s^-1. High velocity gas (υ_LSR > 35 km s^-1) is observed both close to the central source and further out in the flow. The readout positions for the OTF map are indicated with black dots. The squares and circles represent the positions of the sources presented in Fig. 2. The insets in the lower right corners illustrate each velocity interval for the spectrum towards VLA 1623. The lower right panel shows the position-velocity map in the direction connecting the two plus signs. Here, υ_LSR = 3.7 km s^-1 is indicated with a dashed line.