The influences of climate change on watersheds will be spatially heterogeneous, with varying elevations, dominant vegetation, and other climatic conditions influencing responses. To understand climate change impacts on nutrient export, we, therefore, must consider the influence of mixing and scaling across watersheds through nested monitoring efforts. We are addressing this need using high-frequency in-situ monitoring to assess stream chemistry dynamics at 3 locations throughout the Upper Santa Fe watershed, which provides essential municipal and residential water sources. The installed s::can sensors collect dissolved organic carbon, nitrate, nitrate-nitrogen, total organic carbon, and total suspended solids every 15 minutes, providing synchronized monitoring of watershed chemistry from the top of the watershed to the bottom at high-frequency intervals. During storm flows and snowmelt, we hypothesized that solutes would be at their highest concentration at the watershed outlet as export accumulates across higher and smaller sub-watersheds. This pattern was observed in all solutes except for nitrate, indicating that nitrate may be taken up or lost along the stream network. This assessment explores this deviation in nitrate transport to identify the influence of climatic variation across space. Ongoing work will explore whether deviations from these patterns can indicate disturbances to terrestrial or stream ecosystems that could influence downstream water quality.