Numbered Report 316 | Texas Water Development Board

Report 316 by T. Wesley McCoy, Geologist | January 1990

  • Report 316 - Evaluation of Ground-Water Resources in the Lower Rio Grande Valley, Texas (pdf - 2.43MB)
  • Figure 2 (pdf - 8.28MB) - Average Annual Precipitation, and Average Monthly Precipitation versus Gross Lake Evaporation for Period of Record at Selected Stations
  • Figure 4 (pdf - 7.49MB) - Geologic Map of Study Area
  • Figure 5 (pdf - 7.23MB) - Approximate Productive Areas of the Major Sources of Ground Water in the Lower Rio Grande Valley
  • Figure 6 (pdf - 7.14MB) - Stratigraphic Cross-Section A-A', Lower Rio Grande Valley
  • Figure 7 (pdf - 7.07MB) - Stratigraphic Cross-Section B-B', Lower Rio Grande Valley
  • Figure 8 (pdf - 7.13MB) - Altitude of Water Level in Evangeline and Chicot Aquifers in the Lower Rio Grande Valley, 1988
  • Figure 9 (pdf - 7.21MB) - Water-Level Rise and Decline in Selected Wells in the Lower Rio Grande Valley, 1970 through 1988
  • Figure 10 (pdf - 7.17MB) - Chemical-Quality Diagrams Showing Concentration and Ratio of Constituents in Water from Selected Wells and from the Rio Grande
  • Figure 12 (pdf - 7.83MB) - Chemical Quality of Water in the Evangeline and Chicot Aquifers
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