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Reports, Studies & Resources


Influence of Ground and Surface Water Relations on Algal Communities in the Rio Grande Wild & Scenic River (word doc) Report Data(xls)

Current Drought Information for June 2009 (ppt)

 Archived EARDC Reports & Studies (click for list of studies)

  • Hydrogeologic Framework of the Edwards-Trinity Aquifer System, West-Central Texas
         By: Rene A. Barker and Ann F. Ardis, 1996 (pdf)

Basic Law and Management of Texas Water

  • Basic summary information regarding Texas Water Law and Texas Water Management (ppt)
  • Water Resource Problems & Challenges in Texas (pdf)

National Park Service Reports

  • Water quality conditions and trends in the Chickasaw National Recreation Area, National Park Service: 1987-2009  (pdf)  ---------- Data Set (pdf)
  • Water Quality Issues and Trends in the Pecos River and Glorieta Creek, Pecos National Historical Park, National Park Service: 1994 - 2009 (pdf) -------Data Set (xls)
  • Review of and Recommendations for Hydrologic-Monitoring Activities in Southern Plains Network, National Park Service (pdf)
  • Historical Perspective of Surface Water and Groundwater Resources in the Chihuahuan Desert Network, National Park Service (pdf) 

Water Resource Data Base

A Study of the Springs of the Trans-Pecos Region of Texas by Glenn Longley PH.D., David Flores & Craig Watts poster is now available for Download.

A law article on the Aquifer (Raiders of the Lost Aquifer?) or, the Beginning of the End to Fifty years of Conflict over The Texas Edwards Aquifer has been posted under other sites of interest as well as our recent listing in Directory Science.

Area Precipitation

Click below to view infomation regarding different pecipitation rates of the following three areas.

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Dripping Springs

  • Cumulative Precipitation Deficits During Selected Drought Intervals at Dripping Springs, Texas (1895 - Sept 2008) (pdf)
  • Difference Between Expected (Mean) and Actual Annual Precipitation at Dripping Springs, Texas(1895 - Sept 2008)(pdf)
  • Duration of Drought Intervals of Two or More Years at Dripping Springs, Texas (1895 - Sept 2008)(pdf)
  • Annual Precipitation at Dripping Springs, Texas (1895 - Sept 2008) (pdf)

Jacobs Well

  • Difference Between Expected (Mean) and Actual Monthly Precipitation atJacob's Well, Texas (January 1990 - July 2006) (pdf)
  • Monthly Precipitation at Jacob's Well (Wimberley), Texas
    (January 1990 - July 2006)(pdf)

San Marcos

  • Cumulative Precipitation Deficits During Selected Drought Intervals at San Marcos, Texas (1895 - July 2006) (pdf)
  • Difference Between Expected (Mean) and Actual Annual Precipitation at San Marcos, Texas (1895 - July 2006) (pdf)
  • Duration of Drought Intervals of Two or More Years at San Marcos, Texas (1895 - July 2006) (pdf)
  • Annual Precipitation at San Marcos, Texas 1895- July 2006 (pdf)

Exploring the Trinity Aquifer (double click to open in separate window)

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Hays Trinity Groundwater Conservation District Aquifer Information (double click to open in separate window)

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