Report 234 by William F. Guyton & Associates | June 1979

Important note: Out-of-date tabular information is omitted from these historic numbered reports. Data such as well reports, records of wells, water quality and water quality information are maintained electronically at Water Data Interactive (WDI)

  • Report 234 - Geohydrology of Comal, San Marcos, and Hueco Spring(pdf - 14.5MB)
  • Figure 1 - (pdf - 835KB) Edwards (Balcones Fault Zone) Aquuifer, San Antonio Region
  • Figure 3 - (pdf - 3.45MB) Surface Geology of the Edwards Aquifer Area Northeast of San Antonio; Showing Water-Quality Features and Locations of Springs, Observation Wells and Test Holes
  • Figure 4 - (pdf - 3.45MB) Elevation of the Top of Glen Rose Formation, and Surface Geology of the Edwards Aquifer Area Northeast of San Antonio
  • Figure 5 - (pdf - 2.31MB) Surface Geology of Comal Spring Locality
  • Figure 6 - (pdf - 2.04MB) Geologic Cross-Section Through Comal Springs Locality
  • Figure 7 - (pdf - 3.20MB) Surface Geology of San Marcos Springs Locality
  • Figure 8 - (pdf - 1.99MB) Geologic Cross Section Through San Marcos Springs Locality
  • Figure 9 - (pdf - 2.22MB) Surface Geology of Hueco Springs Locality
  • Figure 10 - (pdf - 1.73MB) Geologic Cross Section Through Hueco Springs Locality
  • Figure 11 - (pdf - 803KB) Geohydrologic Subdivision of the Edwards Aquifer Northeast of San Antonio
  • Figure 12 - (pdf - 925kB) Flow of Comal, San Marcos, and Hueco Springs, 1881-1928
  • Figure 13 - (pdf - 0.99MB) Flow of Comal, San Marcos, and Hueco Springs and Precipitation at New Braunfels and San Marcos, 1928-1975
  • Figure 14 - (pdf - 3.07MB) Surface Geology of the Edwards Aquifer Area Northeast of San Antonio; Showing Tritium Analysis of Water from Wells and Springs and Surface Dranage Divides
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