No, I'm not 100% sure, but there is fluid at the in the grooves at the tank top nowhere near the cap so this is my assumption. I don't have access to a pressure tester for the cap or radiator. I have a new radiator coming this week.
From what I've read this is not uncommon on the G3 Integra.
I will check it again before pulling the old one out.
*I think we're getting a little off topic at this point*