Why is Inflow and Infiltration water a problem?
“Clear” water belongs in storm sewers or on the surface of the ground, and not in the sanitary sewers. When clear water gets into the sanitary sewers, it must be treated like sanitary waste. Too much storm and clear water often overloads the sewers and causes sewer backups when it rains. It also may cause overflows from the sewers to streams. 6.
