That's 82 gallons per day. Or 372 liters. Quite a lot.
A standard (inefficient) US toilet uses 1.28 gallons every time you flush it. Lets assume you have four people per household maybe using the toilet about 6 times per day, each. That's almost 30 gallons right there. The average shower takes about 15 gallons. So times four that's 60 gallons right there. Adds up to 80 gallons already. That's before you turn on the washing machine, the dishwasher, watering the lawn, making tea, etc. 82 sounds about right but also very wasteful.
The question of course is could the US do better? And why would it? As it turns out, a lot of places treat water like an almost free commodity. Hence the complete disregard for toilet and shower inefficiencies. If people would pay for it by the gallon at a reasonable amount, they'd fix it. But they aren't.
Say you'd price it a 10 cents per gallon. A 15 gallon shower now costs you 1.50$. Maybe you'd install some water saving shower head and shower bit less long. The actual price is closer to a 1000 gallons for that price. Hence the average American not giving a shit when they flush the toilet, take a shower, etc.
Water isn't cheap to source anymore. Especially if you live in a desert. Taking water from unsustainable sources has the downside that those sources run out eventually. Especially if they are not being replenished naturally anymore. That's what is happening in a lot of places. Water isn't scarce though. Our planet is covered in it. All we need to do is separate it from salt (and our waste) and we can have as much as we want of it. But it comes at a price.