“We are still working with the professionals through this process to ensure ... out from a pressure release valve of a ...

(WVLT) - Alcoa city officials ordered a shelter in place after an Ammonia chemical leak at US Foods Friday ... from that drone video and shut off two valves, saying it was a valve malfunction.

Food particles, grease, or debris may be stuck inside the release valve, preventing a proper seal. You can remove the steam ...