References

Barlow, P.M., Cunningham, W.L., Zhai, Tong, and Gray, Mark, 2015, U.S. Geological Survey Groundwater Toolbox, a graphical and mapping interface for analysis of hydrologic data (version 1.0)—User guide for estimation of springflow, runoff, and groundwater recharge from streamflow data: U.S. Geological Survey Techniques and Methods, book 3, chap. B10, 27 p., http://dx.doi.org/10.3133/tm3B10.

Fahlquist, L., and Slattery, R.N., 1997, Water Quality Assessment of the Comal Springs Riverine System, New Braunfels, Texas, 1993-94: U.S. Geological Survey Fact Sheet 099-97, 6 p. https://doi.org/10.3133/fs09997.

Lurry, D.L., 2011, How does a U.S. Geological Survey streamgage work?: U.S. Geological Survey Fact Sheet 2011–3001, 2 p., https://doi.org/10.3133/fs20113001.

Slattery, R.N., and Fahlquist, L., 1997, Water-Quality Summary of the San Marcos Springs Riverine System, San Marcos, Texas, July–August 1994: U.S. Geological Survey Fact Sheet 059-97, 4 p. https://doi.org/10.3133/fs05997.

Swan, D.R., and Condie, R., 1983, Computation of the base flow index: Water Resources Branch Inland Water Directorate, Environment Canada, Ottawa, Ontario, 21 p.

Turnipseed, D.P., and Sauer, V.B., 2010, Discharge measurements at gaging stations: U.S. Geological Survey Techniques and Methods book 3, chap. A8, 87 p., https://doi.org/10.3133/tm3A8.

Wahl, Kenneth L. and Wahl, Tony L., 1988, Effects of regional ground-water level declines on streamflow in the Oklahoma panhandle: Proceedings of the Symposium on Water-Use Data for Water Resources Management, American Water Resources Association, pp. 239–249 (August 1988).

Wahl, K. L., and Wahl, T. L., 1995, Determining the Flow of Comal Springs at New Braunfels, Texas, Texas Water '95, American Society of Civil Engineers, August 16-17, 1995, San Antonio, Texas, p. 77–86. http://www.usbr.gov/tsc/techreferences/hydraulics_lab/pubs/PAP/PAP-0708.pdf.