Here are some additional terms that can help in the sewer/drainage area.
Catch Basins: Used to collect surface drainage and process wastes in individual drainage areas and to trap sediment at the point nearest the source.
Deferred Runoff: The controlled release of rainwater that has been held or impounded during the rainfall in a designated area such as a tank dike enclosure.
Drains: Small sewer inlets/connections (such as an open end pipe or fitting) discharging through a sealed connection to the sewer system from discrete sources, such as pump bases, equipment drips, low points of floors, etc., but not from outside surface drainage.
Hydraulic Seals: Used to prevent vapor emission out of inlets, and to isolate the various parts of a sewer system, preventing vapor travel and spread of fire or explosion. Such seals shall be a minimum 6 in. (150 mm), unless otherwise specified.
Industrial or Oily Water Sewers: Collect process wastewater, and hydrocarbon/oil contaminated wastewater including rainwater or firewater runoff from areas normally subject to hydrocarbon/oil contamination and condensate/blowdown with hydrocarbon/oil or chemical contaminants.
Laterals: Sewer lines collecting the effluent from two or more sublaterals discharging to manholes on mains.
Mains: Sewer lines connecting manhole to manhole carrying combined effluent from laterals or sublaterals.
Manholes: Used in sewers as junction points and sediment traps, and to provide access for maintenance and inspection.
Open Channel Floor or Pavement Drains: Continuous troughs or trenches collecting surface drainage discharging to the sewer system.
Sanitary Sewers: Collect waste from the toilet facilities, lavatories, showers, and floor drains in rest, wash, and locker rooms.
Storm Water or Clean Water Sewers: Collect rain water runoff, firewater and condensate/blowdown that are not normally subject to hydrocarbon/oil, or toxic chemical contamination.