The hydrological regime of a stream plays a critical role in determining the biodiversity and ecological processes of aquatic, wetland and riparian ecosystems. As a result, hydrological characteristics provide important information on the integrity of freshwater systems and how they may be changing over time. The monitoring program assess and detect changes in a Streamflow Index of key hydrological measures in major transboundary watersheds at Kejimkujik. Stream water level is recorded hourly using in-situ water level data loggers.