I had an ETG test done 89 hours after I consumed 16 beers. I am 6'2" and weight 195 pounds. I am in good shape. What are my odds of passing?

Well...

16 beers is a lot but doesn't really affect the duration that you'll test positive. ETG tests, looks for a metabolized product of alcohol, not the alcohol itself.

The good news is in most people this product is excreted up to 80 hours post consumption and in many the metabolite is not detectable after 24 hours.

The bad news peoples bodies are all different so depending on how fast you've metabolized the alcohol it could go either way.

Time for a lecture: If you don't want to fail a alcohol test don't drink. If you don't want to go OD don't drink 16 beers at the same time. This isn't just about violating probation or getting a job, it's about your health. Excessive consumption of alcohol can lead to dementia, liver failure, hypertension, and early death; among other things.