Garage intercepting traps. When required by the Code
Enforcement Officer, his deputy or assistants, in the case of garage
and filling stations, a separate sewer shall be connected, separately
from other drainage connections, through an appropriate garage intercepting
trap located outside of the building and shall discharge into a building
sanitary sewer. Such trap shall intercept all oils, gasoline, flammable
fluids, silt and other soils and thereby exclude such materials from
the street sanitary sewer. Garage intercepting traps must be maintained
in good condition and all oils, gasoline, flammable fluids, silt and
other soils removed so that no fire hazard will be created.