Summary of Groundwater Dye Tracing Studies (1996-2002), Barton Springs Segment of the Edwards Aquifer


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Summary of Groundwater Dye Tracing Studies (1996-2002), Barton Springs Segment of the Edwards Aquifer
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The Barton Springs/Edwards Aquifer Conservation District (BSEACD), in cooperation with the City of Austin (COA), injected non-toxic organic dyes into caves, sinkholes, and wells within the Barton Springs segment of the Edwards Aquifer to trace groundwater flow routes and determine groundwater flow rates. This document summarizes groundwater dye tracing studies conducted between 1996 and 2001 with funding from an Environmental Protection Agency 319(h) grant and presents new groundwater dye tracing results conducted during 2002. These studies have provided new insight into groundwater flow for this karst aquifer by defining three primary groundwater basins with related groundwater flow routes. Groundwater flow rates from major recharge locations to the springs are very rapid and variable under different aquifer conditions.

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