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Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater.

机译：西德克萨斯州佩科斯谷含水层：结构和咸淡水地下水。

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Estimated at more than 2.7 billion acre-feet (LBG-Guyton, 2003), brackish groundwater (water with total dissolved solids concentration of 1,000 to 10,000 milligrams per liter) constitutes an important desalination water supply option in Texas. However, one of the more challenging issues.and a potential roadblock to more widespread implementation of desalination.is the lack of detailed information on parameters important to desalination for the brackish sections of Texas Water Development Board (TWDB) designated aquifers. In 2009, TWDB established the Brackish Resources Aquifer Characterization System program to map and characterize brackish groundwater in the state and facilitate the planning of desalination projects. As part of the program, the Pecos Valley Aquifer in Regional Water Planning Area F was selected for a pilot study. In addition to mapping and characterizing brackish water in the aquifer, the goals of the project were to develop techniques of data analysis and build a database management system that could be used in future brackish aquifer mapping projects and other geologic studies. The Pecos Valley Aquifer underlies an area of about 8,650 square miles in the Trans-Pecos area of West Texas and New Mexico. It is the primary source of water in the area. The underlying Edwards-Trinity (Plateau), Dockum, Rustler, and Capitan Reef Complex aquifers provide smaller volumes. For the study, we collected, analyzed, and interpreted thousands of water well and geophysical well logs to map the geologic units and establish stratigraphic relationships. We also gathered water chemistry, water level, and aquifer test data from a wide variety of sources to characterize groundwater in the Pecos Valley Aquifer.

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