Revision History for U.S. Geological Survey Scientific Investigations Report 2010-5030

Andrew G. Hunt, Rebecca B. Lambert, and Lynne Fahlquist

Sources of Groundwater Based on Helium Analyses in and near the Freshwater/Saline-Water Transition Zone of the 
San Antonio Segment of the Edwards Aquifer, South-Central Texas, 2002–03

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First posted March 22, 2010

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November 30, 2010 Revision:

Cover figure replaced. Figure 1 replaced.

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