Basement floor sanitary layout plan featuring a large commercial kitchen and staff canteen area. Drawing includes comprehensive drainage systems for dishwashing stations, prep areas and beverage sections, complete with grease interceptors and septic tank connections. Specific details are provided for several drainage sumps, including a 1.5m x 2.0m x 1.5m unit and snaller 0.8m x 1.2m units. Piping schedules specify Cast Iron (CI) and Ductile Iron (DI) for waste, soil, and vent lines ranging from 40mm to 100mm dia. The plan includes various auxiliary rooms such as plant rooms, transformer rooms, and generator areas with associated MEP infrastructure. Floor levels and invert levels (IL) are marked throughout, alongside gutter drain details and 1:150 slope callouts for horizontal runs.