(a) The drainage and plumbing system of each new building or new work installed in any existing building shall be entirely separate and independent of that of any other building. Wherever available, every building on the same premises shall have an independent connection to the main or branch sewer.
(b) Where one building exists or is erected in the area of another on an interior lot, and no private sewer or public sewer is available or possible, or can be made so for the rear building through an adjoining alley, court, yard, driveway or easement, the building sewer from the front building may, by special permission of the Director of Public Works and Services, be extended to the rear building, and the whole shall be considered one building sewer.
(Ord. 86-32, passed 6-23-1986)