Report 82 by George R. Tarver, U.S. Geological Survey | August 1968
- Report 82 - Ground-Water Resources of Polk County, Texas
- figure 4 - Altitude of the Top of the Catahoula Sandstone
- figure 6 - Chemical Quality of Water in Selected Wells
- figure 8 - Altitude of Water Levels in Wells Tapping the Jasper Aquifer, 1965-66
- figure 9 - Altitude of Water Levels in Wells Tapping the Evangeline Aquifer, 1965-66
- figure 10 - Base of Fresh to Slightly Saline Water in the Catahoula Sandstone
- figure 11 - Base of Fresh to Slightly Saline Water in the Jasper and Evangeline Aquifers
- figure 12 - Thickness of Sand Containing Fresh to Slightly Saline Water
- figure 13 - Location of Wells and Springs in Polk County and Adjacent Areas
- figure 14 - Hydrologic and Geologic Section A-A,' Polk and San Jacinto Counties
- figure 15 - Hydrologic and Geologic Section B-B,' Angelina, Polk, and Hardin Counties
- figure 16 - Hydrologic and Geologic Section C-C,' San Jacinto, Polk, and Tyler Counties