U.S. Department of the Interior U.S. Geological Survey Joint Funding Agreement for Water Resource Investigations

This contract is a joint funding agreement between the U.S. Geological Survey and the City of Sierra Vista for water resource investigations in the San Pedro Riparian National Conservation Area. The agreement includes operation and maintenance of two gages and 40 wells, as well as establishing and monitoring four springs. The total cost of the project is $100,973, with the City of Sierra Vista contributing $33,513, the U.S. Geological Survey contributing $18,700, and the Bureau of Land Management contributing $48,760. The project aims to monitor hydrologic parameters, including near-stream vertical gradients, annual alluvial water table maximum depths, and annual alluvial water table fluctuations, to assess trends in groundwater resources and contribute to the USGS strategic science direction. • The project includes quarterly measurements of alluvial aquifer water levels at 40 wells in the SPRNCA. • The USGS will operate, maintain, and produce stage/discharge data for two gages on the San Pedro River. • The project contributes to the goals of the Upper San Pedro Partnership and the USGS strategic science direction. • The results of the project will be available for publication by the U.S. Geological Survey. • The project includes a budget of $100,973, with contributions from the City of Sierra Vista, the U.S. Geological Survey, and the Bureau of Land Management.