(Photo: SBG San Antonio)

On Friday morning, about 4200 gallons of hydrofluoric cylic acid (or fluoride) spilled out of a tank during a transfer at the San Antonio Water System Chlorine Site.

(Check out the video below…while it is not new, this is the exact same chemical that spilled last week and the very same one we add to our drinking water.)

According to the San Antonio Fire Department, the tanks are required to be in a containment area and only “a small amount of the spill got outside of the area.”1 If you watched the video above, you saw that fluoride can eat through concrete. So…small spill or no, it’s a big deal.

Thankfully, there were no injuries and HAZMAT teams were able to clean the area.



  1. News 4, San Antonio