20260819 10311200 1.0 TRUE ItemDescription 150000000 5000 Pecos Valley Alluvium Top Elevation Surface. Areal extent of the data file is based upon the Pecos Valley Aquifer in west Texas. Dataset prepared for the project: Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Pecos Valley Alluvium Top Elevation Surface</SPAN></P><P><SPAN><SPAN>Units: feet above mean sea level</SPAN></SPAN></P><P><SPAN>The Pecos Valley Alluvium outcrops at the ground surface over most of its areal extent. The top surface of this formation was prepared from the Texas digital elevation model which was resampled to meet the project grid cell size of 250 feet. </SPAN></P><P><SPAN><SPAN>This dataset was prepared to meet a specific purpose as described in the following report, which is available on the TWDB website:</SPAN></SPAN></P><P><SPAN><SPAN>Meyer, J.E., Wise, M.R., and Kalaswad, S., 2011, Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater: Texas Water Development Board, report in preparation.</SPAN></SPAN></P><P><SPAN><SPAN>The data used to prepare this dataset is also available in the Brackish Resources Aquifer Characterization System (BRACS) MS Access Database, data dictionary, and raw data files (digital geophysical well logs and water well information).</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV> Texas Water Development Board (www.twdb.state.tx.us), Water Science and Conservation, Groundwater Division, Brackish Resources Aquifer Characterization System Program BRACS PVA Project: Pecos Valley Alluvium Top Elevation Surface Grid TWDB BRACS Pecos Valley Aquifer PVA Salinity Pecos Valley stratigraphy 20260819