Wastewater is liquid waste discharged by residences, commercial properties, agriculture and industry that contains contaminant. It flows into the sanitary sewer collection system where it flows into the wastewater treatment plants that fully treats the wastewater before discharging it into the Colorado River or using it for the Water Reclamation program.

New Calculation Method

Austin Water calculates wastewater costs based on the amount of water used during three winter billing periods. Beginning this year, wastewater rates will be based on your average wastewater use for all three months. This means the highest month of the wastewater average period will NO LONGER be dropped from the calculation. These three periods occur between mid-November and mid-March of each year.

Conserve Now and Lower Your Bill!

You can lower your wastewater costs for the next year by conserving water use during these billing periods. There are many ways residents and businesses can do to conserve water and wastewater. You can also use our online water calculator, utility statement graphs, and online utility usage history table to keep track of your water habits.

Learn More

For more information on wastewater averaging, review our Wastewater Averaging Frequently Asked Questions.