I know the subject of EtG half life being 2-3 hours has come up. My question though is, if it's a 500 cutoff, the only was to fail after 80 hours would be with an insanely high (26 billion) obtained EtG level. How much alcohol would that take in a group of 10 subjects? Assuming they didn't all die of alcohol poisoning (LOL)

And to clarify my math, the 13,421,771,800 should be down to the safe 400 level in 78 hours.