The name of the Sewer Commission was officially changed to the Water Pollution Control Authority (WPCA) in 1999. The Authority is self-funded and employs an Assistant WPCA Administrator and two full-time maintenance personnel. There are approximately 180 miles of sewers in Trumbull and the vast majority is constructed using the recommended minimum 8-inch diameter.
Topography is a prime consideration with the system's design. It is to the advantage of the Town to have gravity flow within the system wherever possible. Gravity flow is much less costly and troublesome.
However, complete gravity flow is not possible or economically feasible. For this reason, 13 pump stations are used in Town. Approximately 10,000 homes and businesses are connected.