Denver Water uses one number to decide who is at risk of a shutoff: $100. If your past-due balance stays under that, your water stays on. This guide shows how to stay under that line, how to get help when you can't, and what this fall's drought rules mean for your bill. AT A GLANCE The $100 rule: Denver Water says that if you keep your past-due balance below $100, you aren't at risk of having your water turned off. Help with a bill: Denver Water offers one-time payment assist