Wastewater Treatment Plants


Special Information

In relation to the Central Sludge Digestion and Storage Project, the Limited Environmental Review is to inform the public regarding the project, its costs and expected environmental benefits. 


The City is served by two wastewater treatment plants (WWTP), the Westerly WWTP and the Central WWTP. With few exceptions, all sewers east of State Route 43, including most of Aurora’s Industrial and commercial areas, convey wastewater to the Central WWTP. Sanitary sewers west of State Route 43 convey wastewater to the Westerly WWTP. Central WWTP was constructed in about 1925 and was later reconstructed in 1997 due to rapid growth in the 1990s. The Central WWTP is designed for an average daily flow of 1.5 MGD and a peak flow of 3.6 MGD. The WWTP discharges to the Aurora Branch of the Chagrin River. In 1987 the Westerly WWTP was constructed to assist the overflow from the Central WWTP. The Westerly WWTP has a capacity of 1.4 MGD and a peak flow of 2.8 MGD. The discharge flows into Tinkers Creek. 

The Process

WWTP Process Diagram

How Can You Help?

You can help by educating yourself and others about the dangerous and costly mistakes that negatively impact our sewer systems and our treatment plants. Even items labeled as flushable can clog pipes, tangle pumps and result in costly sewer backups at your home and in city mainlines.