Bulletin 6516 by J.B. Wesselman, Geologist, and B.N. Myers, Hydraulic Engineer, U.S. Geological Survey | May 1965 (Second Printing May 1970)
- Bulletin 6516 - Geology and Ground-Water Resources of Orange County, Texas (pdf - 8.38MB)
- Figure 5 (pdf - 3.38MB) - Approximate Altitude Below Sea Level of the Base of the "Middle" Aquifer in Orange County
- Figure 6 (pdf - 3.37MB) - Approximate Thickness of Fresh-Water Bearing Sands in the "Middle" Aquifer in Orange County
- Figure 9 (pdf - 3.30MB) - Approximate Altitudes of Water Levels in Wells Screened in the "Middle" Aquifer in Orange and Jefferson Counties, 1941
- Figure 10 (pdf - 3.36MB) - Approximate Altitudes of Water Levels in Wells Screened in the "Middle" Aquifer in Orange County, 1962-63
- Figure 11 (pdf - 3.36MB) - Approximate Altitudes of Water Levels in Wells Screened in the "Upper" Aquifer in Orange County, 1962-63
- Figure 14 (pdf - 3.37MB) - Approximate Altitude Below Sea Level of the Base of Fresh Water-Bearing Sands in the "Lower" and "Middle" Aquifers in Orange County
- Figure 15 (pdf - 3.38MB) - Approximate Altitude Below Sea Level of the Base of Slightly Saline Water-Bearing Sands in the "Lower" and "Middle" Aquifers in Orange County
- Plate 1 (pdf - 3.42MB) - Map Showing Location of Wells in Orange County and Parts of Jefferson County, Texas, and Cameron and Calcasieu Parishes, Louisiana
- Plate 2 (pdf - 2.40MB) - Cross-section A-A', Orange County
- Plate 3 (pdf - 2.47MB) - Cross-section B-B', Orange County
- Plate 4 (pdf - 2.03MB) - Cross-section C-C', Orange County