Spatially dependent neutron-spectrum measurements have been made in both light and heavy water, using the General Atomic Linear Accelerator Facility and standard time-of-flight techniques. The measurements were made with varying geometrical arrangements, and both 1/v and resonance absorbers were utilized to simulate reactor poisons. The measurements were compared to calculations performed with an SN transport code utilizing the bound scattering models proposed for these moderators. The agreement between theory and experiment for the Nelkin model for H2O and Honeck&pos;s extension of this model to D2O is shown to be very satisfactory for the cases studied.