I live in the Baltimore suburb as a single. I don't bathe but shower daily. That plus a weekly laundry (two loads) and running the dishwasher twice a week, the ice machine in the fridge, plenty of toilet flushing etc. All normal. Water bill is about $25 a month.

I imagine if your bathing you're paying quite a bit more but water is so cheap that it's not the bill I'd haggle over.

DC water is a total shakedown. Most of what you pay isn’t for the water you use, but rather a forced donation to the “clean river fund.” We pay roughly $200-250 PER MONTH for two adults and two kids. Half of that is the forced donation.