Bazile Creek lies within the Bazile Groundwater Management Area, characterized by high (>10 mg/L) groundwater nitrate concentrations originating from nonpoint sources. The purpose of the research was to determine how nitrate concentrations and source in Bazile Creek vary throughout the watershed and over time. Surface water nitrate samples were collected monthly from July 2018 through September 2019, and ?15N/?18O nitrate isotope samples were collected seasonally and after three summer rain events. This research will provide data for future projects in the area, and ultimately aid in the development of targeted best management practices tasked with reducing overall nitrate loading to Bazile Creek.

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