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Current Aquifer Levels
May 22, 2008
A steep decline in water levels and spring discharge levels continues. Since late 2007, the area has seen unusually dry weather and below average rainfall, resulting in decreased recharge to the aquifer. For example, Onion Creek, the largest contributor of recharge to the aquifer, stopped flowing in September 2007.
The U.S. Drought Monitor reports that much of Texas is currently experiencing "abnormally dry" to
"moderate drought" conditions. If no rainfall occurs in the next few months, Barton Springs is on a trajectory to reach a discharge of 38 cubic feet per second (cfs),the trigger for Alarm Stage Drought, by mid-June 2008. If dry conditions persist, then subsequently Critical Stage Drought (triggered at 20 cfs) could come as soon as late Fall 2008.
Unfortunately, the outlook for wet conditions is not favorable. The U.S. Seasonal Outlook indicates that "drought development is likely" for our area and much of South Texas. This is primarily due to the development of "La Nina" conditions in the Pacific Ocean, which often results in decreased rainfall in Texas.
The District will continue to monitor water levels and spring discharge and will keep the public informed. Please feel free to contact the District for assistance or additional drought information.
Barton Springs Flow Compared to Rainfall
South Austin (Lovelady) Monitor Well (58-50-301)
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