Datasets and R Scripts Used for the Water-Budget Analysis of the Medina and Diversion Lake System, Bandera, Bexar, and Medina Counties, Texas, 1955–2022

The U.S. Geological Survey—in cooperation with the San Antonio Water System and the Edwards Aquifer Authority—used data collected during four different periods (March 1955–August 1964, October 1995–September 1996, March 2001–June 2002, and March 2017–October 2022) as part of a new study to refine previously derived relations between the altitude of the water surface of Medina Lake and recharge to the Edwards aquifer and the upper zone of the Trinity aquifer in the form of seepage losses from the Medina Lake and the immediately downstream Diversion Lake. Any seepage losses that occur within the conservation pools of Medina and Diversion Lakes infiltrate the Edwards aquifer and the upper zone of the Trinity aquifer as recharge.

This data release contains hydrologic data collected during 1955–2022; meteorological data collected during 2017–22; three R script files used to analyze streamflow data for the purpose of estimating discharge from ungaged drainage areas; and an R script file used to do a statistical analysis of the hydrologic data compiled during the 1955–2022 study and which also provides a mathematical equation that relates Medina Lake stage to recharge to the Edwards aquifer and upper zone of the Trinity aquifer.

This data release contains hydrologic data collected during 1955–2022; meteorological data collected during 2017–22; three R script files used to analyze streamflow data for the purpose of estimating discharge from ungaged drainage areas; and an R script file used to do a statistical analysis of the hydrologic data compiled during the 1955–2022 study and which also provides a mathematical equation that relates Medina Lake stage to recharge to the Edwards aquifer and upper zone of the Trinity aquifer.