DISPATCHER: La Porte 911, what is the address of your emergency?
DUPONT SUPERVISOR: We have a possible Casualty 5, is what my medics are telling me.
DISPATCHER: How did this happen? Is it chemical related?
DUPONT SUPERVISOR: Uh, I am not certain.
DISPATCHER: Okay, sir, I need to know what’s going on before I send.
DUPONT SUPERVISOR: They’re doing a rescue right now. We have some injured people. I am not sure if chemicals are involved or not. I’m just relaying the message.
— Excerpt from transcript of 911 call from a DuPont supervisor to first responders in the immediate aftermath of a deadly chemical leak at a facility in Texas.