Underground pipes that receive, hold, and move wastewater using gravity rather than using pumps or pressure.

Pipes that carry wastewater under pressure.

The pump or set of pumps, that are housed in a building, that lifts wastewater to a higher elevation for storage before moving it to the treatment plant. Also called lift stations.

All facilities, devices, and systems of the Metro Wastewater Treatment Plant (WWTP) that are owned, managed, and maintained by the City of Columbia. It is located at 1200 Simmon Tree Lane.