A "water line" usually refers to a pipe supplying pressurized water ready for use while a sewer line refers a pipe carrying water with human waste at atmospheric pressure. read more
a sanitary sewer system for wastewater a storm water collection system for rainwater runoff and snow and ice-melt The aim of these two systems is to maintain a safe, sanitary and pleasant environment for all citizens within the City of Midland and the waters of the State of Michigan. read more