Increasing demands on water supplies, non-point source pollution, and water quality-based ecological concerns all point to the need for observing stream flow perturbations and pollutant discharges at higher resolution than was practical in the past. This poster presents a demonstration of the following multiscale ENS approach to observing water quality changes in a regional river network. First, agency gauging station data are used to identify reservoir operations-related flow conditions throughout the region, allowing rough identification of potential trouble spots along the rivers in terms of the flow, temperature and salinity observations. Next, in-field analysis commences with human-actuated nodes in river kayaks characterize the river geometry, bathymetry and water quality at the potential trouble spots