Data Set:  TCEQ Edwards Aquifer Regulatory Boundary

This Texas Commission on Environmental Quality (TCEQ) dataset listed on the Texas Natural Resources Information System (TNRIS) represents the boundary layer location of transition, contributing, and recharge zones as well as contributing zones within the recharge zone that comprise the regulated area identified in the Edward’s Aquifer Protection Program.  Data is available in shapefile, geo-database, and KML (Google Earth) formats.  Key features include the boundaries, area, and perimeters of each zone.  Original data is sourced from 90 USGS 7.5 minute quadrangle hard copy maps available through an Open Government Partnership (OGP).

Using Dye Tracing methods, our team seeks to answer the question of what impact karst excavation and drought in the Central Texas Onion Creek watershed has on facilitating the recharge of the Edward’s Aquifer.  This dataset may be used in an initial site analysis to determine overall boundary locations and can serve as a baselyaer to plot, measure and analyze the distance between the initial dye injection sites and the well and spring monitoring locations as well as the proximity of our test area and flow paths to designated zones within the Edward’s Aquifer. 

More information and the ability to download this dataset can be found at https://tnris.org/data-catalog/entry/tceq-edwards-aquifer-regulatory-boundary/.

-Chris Enders

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