Downspout connections to a sewer lateral. Foundation drains connected to a sewer lateral. Areaway or carport drains connected to a sewer lateral. Uncapped sewer cleanout located in water runoff area. Sump pump discharge of ground water into sanitary sewer.
Infiltration is the leaking of ground or surface water into a properly constructed sewer system.
Cracks in sewer lines or manholes. Loose joints at connection of lateral and sewer line. Cracked or broken sewer lateral. Basement wall leaking and flowing into floor drains. Modified floor drains that collect ground water.