Use of stormwater sewers required. Where a stormwater sewer is accessible
in a street, alley or easement to a building or premises abutting
thereon, the surface drains, groundwaters, roof leaders, or stormwaters
shall be discharged into the stormwater sewer unless otherwise authorized
by the Village. Under no conditions shall sanitary sewage or wastes
or any substance other than surface waters, groundwaters, roof waters
or stormwaters be permitted to flow into or be connected to the stormwater
sewer; and no sanitary sewer shall be connected to the stormwater
sewer system.
(See 65 ILCS 5/11-80-7.)