From the approximately 53 domestic and transboundary hydrogeological formations identified in the region (Figure 1), only four have received binational recognition and, therefore, funding and prioritization by both countries: the Mesilla/Conejos-Medanos Aquifer, the Hueco-Bolson/Valle de Juarez Aquifer, the Edwards Aquifer, and the Gulf Coast/BRB (Bajo Rio Bravo) Aquifer. Recent research has shown that between 50% and 60% of the area overlying the hydrogeological units shared between northeastern Mexico (Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas) and Texas contains good aquifer potential with good water quality conditions (R. Fourth, participants suggested that failures and successes in groundwater cooperation efforts are based more on fear and political lobbying than on understanding of scientific facts.
#TRANSPORTATION TO THE KEEP ON THE BORDERLANDS DRIVER#
Third, the stakeholders indicated that water quality, rather than water quantity, is the main driver of transboundary cooperation efforts in the region. Second, participants identified leadership and individual personalities as key factors for success at the local level but noted that such influence had limited sustainability and limited regional-systemic effects. Findings show that stakeholders appear to support a binational groundwater agreement as a means for assuring the sound long-term management of transboundary groundwater resources in the border region however, the majority of stakeholders also suggest that short-term local or regional arrangements may be preferable over binational agreements as local/regional approaches may be more achievable or realistic. This paper examines stakeholders' perspectives on the borderland between Mexico and Texas through 44 surveys and personal interviews.
On the Texas side, property rights related to groundwater resources limit the scope of options available for cooperative management of cross-border aquifers. On the Mexico side, long-standing centralized groundwater governance structures have created institutional barriers at the local level to the expansion of knowledge and cooperation over these transboundary resources. Notwithstanding this, binational efforts to understand, assess, and manage shared groundwater resources remain limited and politically sensitive.
Over the last decade, transboundary aquifers traversing the Mexico-Texas border have generated growing interest of federal institutions on the Mexico side and state and federal institutions on the Texas side.
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