Both the
Trinity and Edwards Aquifers fluctuate during dry and wet periods—similar to
water supply reservoirs like Lake Travis and Lake Buchanan. Since
January of this year, water levels in both aquifers have been on the decline
due to drought.
For a
closer look at regional Trinity Aquifer trends, the graph below shows
hydrographs (water-level measurements over time) for an Upper Trinity and two
Middle Trinity monitor wells in Hays County. These wells show 2 to 46
foot declines since January. While this is a limited set of wells, it
follows trends we are seeing across the region. Until the area receives
significant rainfall, water levels in the aquifers will continue to drop.
The
District declared Stage II Alarm Drought in late July 2018 (press
release), and all permitted wells are required to reduce pumping by at
least 20%. The current hot and dry weather pattern coupled with high
water use has water levels throughout the area on the decline. Localized
pumping can influence water levels in surrounding wells, so all groundwater
users should conserve and reduce water use.
Useful
links:
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Friday, August 31, 2018
Trinity Aquifer Levels
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