Officials with the Atascocita Fire Department asked the public to avoid Timber Forest, Parks at Atascocita and the immediate surrounding area at Atascocita Road and Noble Forest Tuesday morning.
A Hazmat unit was on the scene to repair the leak.
Authorities say a line broke causing the pressurized acid in liquid form to escape. It mixed with water to create a vapor cloud that a passerby noticed.
The pool will be closed for a day for clean up.
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