Workflow Evansville

Sewer and Wastewater

The Evansville Water and Sewer Utility’s (EWSU’s) sewer system includes 504 miles of sanitary sewers and 318 of combined sanitary and storm sewers. Sewage is collected at homes and businesses then travels via sewer mains to the Utility’s East or West Wastewater Treatment Plants.

Sewer Rates and Charges

Your monthly EWSU bill is based on your water usage, which may vary from month to month. Water usage is calculated in 100-gallon increments and is the largest factor in your bill. 

Learn more about sewer rates and charges

Fat, Oil & Grease (FOG) Prevention

One of the most common causes of sewer backups is fats, oils and grease (FOG) entering the sewer system. When FOG enters the sewer system from homes or businesses, it collects in sewer lines, forms clogs and causes backups.  

Learn more about FOG prevention. 

Customer Rights and Responsibilities

Nearly 63,000 customers in Evansville and Vanderburgh County are connected to EWSU’s sanitary sewer system. The Utility is responsible for more than 800 miles of sewer main lines in the street, located off property owner boundaries or within easements. Property owners are responsible for maintaining the sewer line running between their home or building and the property line.

Learn more about sanitary sewer service and what customers need to know.  

Clear Path

Clear Path is the Utility’s program to educate residents about sewer inspections and cleanings, and the importance of ensuring that utility easements are clear so crews can access the sewer system.