Edwards Aquifer

Hauwert, N.M, Johns, D. A., and Aley, T. J., 1998, Preliminary Report on Groundwater Tracing Studies Within the Barton Creek and Williamson Creek Watersheds, Barton Springs/Edwards Aquifer, prepared by the Barton Springs/Edwards Aquifer Conservation District and the City of Austin Watershed Protection Department, May 1998. 

Hauwert, N. and Vickers, S., 1994, Barton Springs/Edwards Aquifer Hydrogeology and Groundwater Quality, submitted by the Barton Springs/Edwards Aquifer Conservation District to the Texas Water Development Board. 

Slade, R. M., Jr., Dorsey, M., and Stewart, S., 1986, Hydrology and Water Quality of the Edwards Aquifer associated with Barton Springs in the Austin Area, Texas, U.S. Geological Survey Water-Resources Investigations 86-4036. 

Havorka, S. D., Dutton, A. R., Ruppel, S. C., and Yeh, J. S., 1996, Edwards aquifer ground-water resources geologic controls on porosity de elopment in platform carbonates, South Texas, The University of Texas, Bureau of Economic Geology, Report of Investigations, 238, Austin, 75 p. 

Maclay, R. W., and Small, T. A., 1984, Carbonate geology and hydrology of the Edwards aquifer in the San Antonio area, Texas, United States Geological Survey, Open-File Report 83-537. 

Woodruff, C. M., Jr., Wilding, L. P., and Marsh, W. M., 1994, Edwards aquifer-water quality and land development in the Austin area, Texas, Gulf Coast Association of Geological Societies, 44th annual convention. Field trip guidebook, Austin, 66p. 

Musgrove, M. Banner, J.L. (2004) Controls on the spatial and temporal variability of vadose dripwater geochemistry Edwards Aquifer, central Texas. Geochimica et Cosmochimica Acta 68, 1007-1020. 

Therefore it is possible that a paucity of K-feldspar and dolomite in the pre-Edwards aquifers downdip from our study area is the reason for the undersaturation of the brine with respect to these phases. It should be noted that K-feldspar, quartz and dolomite are extremely rare, or absent entirely from the deep Edwards carbonates themselves. 

Longman, M.W. and Mench, P.A., 1978. Diagenesis of Cretaceous limestones in the Edwards aquifer system of south-central Texas A scanning electron microscope study. Sediment. Geol., 21 241—276. 

Buszka, P.M. Rose, D.L. Ozuna, G.B. and Groschen, G.Z. Determination of nanogram per liter concentration of volatile organic compounds in water by capillary gas chromatography and selected ion monitoring mass spectrometry and its use to define ground water flow directions in Edwards Aquifer, Texas. Analytical Chemistry 1995, 67, 3659-3669. 

FIGURE 1 Cost of alternative water supplies in the Edwards Aquifer region. Source Adapted from SCTRWPG, 2000. 

Durbin, S.W. 2002. Utilization of a Water Market to Optimize Water Acquisition in the Edwards Aquifer Region. Unpublished M.S. thesis. University of North Carolina at Chapel Hill. 

Keplinger, K.O., and B.A. McCarl. 2000. An evaluation of the 1997 Edwards Aquifer irrigation suspension. Journal of the American Water Resources Association 36(4) 889-901. 

McCarl, B.A., C.R. Dillon, K.O. Keplinger, and R.L. Williams. 1999. Limiting pumping from the Edwards Aquifer an economic investigation of proposals, water markets, and spring flow grrarantees. Water Resources Research 35(4) 1257-1268. 

Votteler, T.H. 1998. The little fish that roared the Endangered Species Act, state groundwater law, and private property rights collide in the Texas Edwards Aquifer. Environmental Law 28(4) 845-904. 

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