MELTING snow Combined sewers: carry both wastewater and storm runoff water to wastewater plantsOutfall Sewer:The length of the main or TRUNK sewer between the connection of the LOWEST branch and final point of disposal is known as an outfall sewer and it thus conducts the sewage either to the treatment plant or to the point of final discharge.Branch Sewer:Branch sewers are an integral part of the municipal sewerage system that connects lateral sewer pipes from homes and offices ALONG a street and EMPTIES them into the main sewers.House Sewer:A house sewer is a term given to the connection of the horizontal house drainage system to the public sewer.Lateral sewer:A sewer lateral is an underground pipe that connects a residence or business to the main sewer line. Difference between Lateral sewer and Branch sewer:The branch sewer is larger in diameter and capacity than the lateral sewers that discharge into it.The lateral sewers are the pipes that collect wastewater from homes and offices. The branch sewers run under streets connecting to various laterals and joining the main sewer