City of Memphis’ crews maintains over 100 sanitary sewer lift stations necessary to pump sanitary sewer water to areas that cannot be serviced by gravity flow. These stations range from serving a small number of households to pumping millions of gallons of wastewater every day. City staff is responsible for the maintenance and inspection of these stations. A networked communication system installed for each lift station notifies staff when pumps are in need of maintenance or other conditions exist. City staff is on call 24 hours a day 365 days a year to respond to alarms and perform emergency maintenance when necessary.