Sewer System Information

The Town of Shrewsbury's sewer systems consists oRiver photof 169.97 miles of mains, 39 sewer pump stations, 4,330 manholes, and was established in 1963. The management of the system is overseen by a three member board of commissioners appointed by the Town Manager.

The sewer system conveys over three million gallons per day on average. Most sewer is treated at the Westborough regional facility with some flow going to the Upper Blackstone Clean Water facility and to the Town of Grafton's facility.

For homes with onsite septic systems, please follow this link for more information about maintaining your system.

Sanitary Sewer Overflow information

Despite the Town's best efforts to operate the sewer system in a proactive manner, sanitary sewer overflows (SSO) are caused by unexpected equipment failure, system blockages, and system surcharges. Please sign up for our SSO News Flash to be alerted when SSO's occur by following this link.

Sanitary Sewer Overflows since July 1, 2022: