A pump station lifts wastewater to a higher elevation in places where flat land would require excessively deep sewer trenches. Pump stations are also used to raise wastewater from areas too low to drain to available collection lines. The District maintains nine sewage-pumping stations within its service area. Seven of these are located in Cleveland (Barberton, Broadway, Dille, Division, Euclid Creek, Flats East Bank, Jennings), one in Brooklyn (Big Creek), and one in Cuyahoga Heights (Cuyahoga Valley Interceptor). These stations pump wastewater from low-lying areas to gravity sewers where it is conveyed to the treatment plants.
A regulator is a device used in combined sewers to control or regulate the diversion of flow. In the District's service area, there are two types of regulators: fixed weir and automated.
Fixed weir regulators are designed to divert flow to the treatment plants and to prevent basement flooding during a rain event. There are over 600 fixed-weir regulators located within the Cleveland and inner-ring-suburb area (served by combined sewers) that are regularly inspected and maintained by the District.
Automated regulators control storm gates and fabric dams to retain flow in the interceptor system until capacity is available for transport to the treatment plants. Twenty-five automated regulators have been installed throughout the District's interceptor network.
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