7.1.5.

(1) Every sanitary drainage system shall be connected to a public sanitary sewer, a public combined sewer or a private sewage disposal system.

(2) A combined building drain or a combined building sewer shall not be installed.

(1) Every storm drainage system shall be connected to a public storm sewage works, a public combined sewage works or a designated storm water disposal location but shall not be connected to a sanitary sewage works.

(1) Except as provided in Sentence (2), every water distribution system shall be connected,

(a) to a watermain that is part of a municipal drinking-water system, or

(b) to a drinking-water system, if a watermain described in Clause (a) is not available.

(2) Storm sewage or greywater that is free of solids may be used for the flushing of water closets, urinals or the priming of traps.

(3) Piping conveying the non-potable water described in Sentence (2) shall be installed in conformance with Section 7.7.

(1) Piping in any building shall be connected to the public services separately from piping of any other building, except that an ancillary building on the same property may be served by the same service.

(2) No plumbing serving a dwelling unit shall be installed in or under another unit of the building unless the piping is located in a tunnel, pipe corridor, common basement or parking garage, so that the piping is accessible for servicing and maintenance throughout its length without encroachment on any private living space, but this Sentence does not prevent plumbing serving a unit located above another unit from being installed in or under the lower unit.

(1) Private sewers and private water supply pipes shall be installed according to MOE, “Guidelines for the Design of Sanitary Sewage Systems, Guidelines for the Design of Storm Sewer Systems, Guidelines for the Design of Water Distribution Systems and Guidelines for Servicing in Areas Subject to Adverse Conditions”.