What is another word for combined sewer?
Pronunciation: [kəmbˈa͡ɪnd sˈuːə] (IPA) 
A combined sewer system is one that carries both stormwater runoff and sewage in the same pipe. As a result, during heavy rainstorms, the system can become overwhelmed, leading to overflows that may pollute local waterways. There are several synonyms for the term "combined sewer" in use today, including "combined sewer overflow system," "unified sewage network," "dual sewerage system," and "common sewer." Regardless of the terminology used, these systems must be properly maintained and upgraded to avoid adverse impacts on the environment and public health. Solutions include green infrastructure like rain gardens and permeable pavement, as well as separating stormwater from sewage in separate systems.
