Abstract
Laguna Pond is an irregularly shaped pond located on Freeman Ranch in the Edwards Aquifer Recharge Zone of south-central Texas. To determine the potential usefulness of Laguna Pond for the management of Freeman Ranch, the pond's drainage area, storage capacity, and yearly water budget were determined using a Global Positioning System unit and geographic information systems analytical tools. Preliminary analysis of the data revealed a negligible drainage area and a storage capacity of 3.71 acre-feet (161,608 cubic feet or 1,208,908.79 gallons) with a surface area of 0.29 acres (12,632 ft2). The preliminary water budget revealed a deficit of approximately 29 in per year, which would require the ranch to pump 8.97 af/year (2, 921,529.604 gallons/year) to create a perennial pond. The exorbitant amount of water required to maintain the pond makes the Laguna an unlikely candidate for utilization as a stock pond or source of recreation for the ranch.
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