Ottawa : Règlement no 2013-416, art. 7 — Property Standards By-law

1) Sanitary sewage or organic waste shall be discharged only through the building drain and building sewer into a sewage system. 2) Untreated or inadequately treated sanitary sewage shall not be discharged onto the surface of the ground, whether into a natural or artificial drainage system or otherwise. 3) Roof drainage or storm water, swimming pool or sump pump water discharge shall,

• a) be drained from the lands so as to prevent recurrent ponding or entrance of water into a basement or cellar; and
• b) not be discharged on walkways, stairs, or neighbouring property. 4) Subsurface drainage shall be installed where there is recurring excessive ponding caused by surface water. 5) Where eavestroughs and downspouts are installed, the roof drainage shall be discharged onto the ground at least 1.2 m (4
• ft) from the building when it is physically possible. 6) Subsection (5) does not apply where the downspouts discharge the roof drainage onto a paved area provided that the water does not drain onto adjoining properties. 7) Where eavestroughs, roof gutters and downspouts are installed, they shall be kept in good repair, free from leaks, and securely fastened to the building. 8) Catch basins shall be kept in good repair and free of debris and obstructions which would prevent them from functioning properly. WALKS