Senator Jeff Bingaman from New Mexico introduced Senate Bill 1957 in 2003, which would come to be the United States-Mexico Transboundary Aquifer Assessment Act (US Public Law 109-448). It was signed into law by the President of the United States on December 22, 2006.
The Act specifically designates the Hueco Bolson/Valle de Juarez, Mesilla/Conejos- Medanos, Santa Cruz, and San Pedro as priority transboundary aquifers for study under the program.
The TAAP is a joint effort between Mexico and the US to evaluate shared priority aquifers. Funds have been provided by each country to conduct research and accomplish the objectives of the TAAP. Funding in the US has been divided equally among the WRRIs and the USGS Water Science Centers in TX, NM, and AZ.
NM WRRI and NMSU are working in close collaboration with the USGS NM Water Science Center to improve understanding of groundwater in the Mesilla aquifers. The NM team is tasked with achieving a better understanding of the Mesilla Basin aquifer through four major research efforts by NMSU and NMT faculty and their students.