Your bill is based on how much water  passes through your meter -- so whether it's used or wasted, you pay for  every drop. That's why it is so important to use water wisely. 

We are required by the state and the  Environmental Protection Agency to clean wastewater before returning it  to the environment. The dirtier water is, the more expensive it is to  clean it. Wastewater is dirtier than water we take from our water supply  lakes to clean for drinking purposes. Therefore, it costs more to clean  wastewater than it does to clean lake water.​