At the Montréal city council meeting of August 6, 2001, it was enacted that:

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1 CITY OF MONTRÉAL BY-LAW BY-LAW AMENDING THE BY-LAW CONCERNING WATER SUPPLY AND PUBLIC SEWER USE (A-4) AND THE BY-LAW CONCERNING FEES (FISCAL 2001) (00-248), AND REPEALING THE PLUMBING BY-LAW (P-4.1) At the Montréal city council meeting of August 6, 2001, it was enacted that: 1. The title of the By-law concerning water supply and public sewer use (R.B.C.M., chapter A-4) is replaced by the following: "By-law concerning the piping of drinking water, wastewater and storm water". 2. Article 1 of that by-law is amended by: (1) replacing the definition of "service pipe" by the following: " "water service pipe" or "service pipe": a pipe that conveys water from the aqueduct to the inside of a building;"; (2) deleting the definitions of "temporary service pipe" and "building sewer"; (3) adding the following definition after the definition of "centreline": " "Code": the Plumbing Code (I-12.1, r.1.1); (4) adding, in the definition of "director", after the words "travaux publics", the words "et de l environnement"; (5) replacing the definition of "rebuilding" by the following: " "rebuilding": the rebuilding of public property, as defined in the By-law concerning excavations (chapter E-6);"; (6) adding the following paragraph at the end: "The words "backwater valve", "building", "building drain", "cleanout", "combined building drain", "combined building sewer", "combined sewer", "drainage system", "plumbing system", "private sewage disposal system", "sanitary drainage system", "sanitary sewer", "sewage", "storm sewer", "storm water", "trap", "vent pipe", and "venting system" are as defined in the Code.". 3. Article 6 of that by-law is amended by replacing the words "Plumbing By-law (chapter P-4.1)" by the word "Code". 4. Section III of chapter II of that by-law is amended by adding the following after article 14: "14.1. A service pipe must be made of type K cast iron or copper, in accordance with Code requirements. The joints of a copper service pipe must be made with a silver solder. The size of a service pipe must be established in relation to the design drainage load, but may not be less than 19 mm / 1

2 Every service pipe must be tested for tightness, as specified in the Code.". Article 60 of that by-law is amended by adding the following paragraph at the end: "Where a disconnection is required for the demolition of a building, no demolition permit is issued unless the owner has conformed to the first paragraph.". Article 79 of that by-law is amended by replacing the words "Plumbing By-law (chapter P-4.1)" by the word "Code". Article 87 of that by-law is amended by replacing the words "Plumbing By-law (chapter P-4.1)" by the word "Code". That by-law is amended by replacing the title of chapter VII.1 by the following: "CHAPTER VII.1 SEWERS SECTION I USE OF SEWERS". Article 89.1 of that by-law is replaced by the following: "89.1. No person may enter a public sewer and any structure or immovable connected to it, interfere with their operation, or expose their structures or accessories.".. Article 89.2 of that by-law is amended by adding the following paragraphs at the end: "No person may disconnect or block a building sewer before having completed the form provided by the director, to have it blocked up to the public sewer. Where the blockage is required to demolish a building, no demolition permit is issued unless the owner has conformed to the first paragraph.".. Chapter VII.1 of that by-law is amended by adding the following sections after article 89.3: "SECTION II CONNECTION TO PUBLIC SEWERS SUBSECTION I SANITARY DRAINAGE SYSTEMS Every sanitary drainage system must be connected to a public sanitary sewer or a public combined sewer No combined building drain may be installed unless the public sewer opposite the building is combined. SUBSECTION 2 STORM DRAINAGE SYSTEM Every storm drainage system must be connected to a public storm sewer, a public combined sewer, or a designated storm water disposal location. SUBSECTION / 2

3 SEPARATE PUBLIC SEWER SYSTEMS Where the public sewer system is a separate system, sewage and storm water of the building must be conveyed to different systems, connected to the public sanitary sewer and the public storm sewer. Despite the first paragraph, in a zone where the storm sewer is separate from the sanitary sewer, the storm building sewer must be temporarily connected to the sanitary building sewer, at the street-line level, on public property, until the public storm sewer is installed. No cleanout is required for the temporary connection The storm building sewer must be to the left of the sanitary building sewer looking onto the street, from the site of the building Where a building is on a lot next to a watercourse and where the public sewer is a separate system, the storm building sewer of the building must drain into the watercourse. SUBSECTION 4 COMBINED PUBLIC SEWER SYSTEMS Where the public sewer is a combined system, sewage and storm water of the building may be drained by a combined building drain and a combined building sewer. SUBSECTION 5 BUILDING SEWERS The building sewer of a building must be connected, independently of any other building sewer, to the section of the public sewer opposite that building. But the building drain of accessory buildings to the building may be connected to the building drain of that building. Obsolete building sewers need not be replaced by building sewers in accordance with the first paragraph when they may be repaired to be in accordance with article Two building sewers may be installed, side by side, in the same trench, one on each side of the dividing line between the two lots on which the buildings stand, provided their connections to the public sewer are at least 1 m apart. Despite the first paragraph, a group of buildings belonging to the same institution or establishment may have a private sewer Every owner must maintain the building sewer of a building in operating condition along its entire length up to the point of connection to the public sewer Every new building must be served by a new building sewer Despite article 89.14, a new building may be connected to an existing building sewer provided that the building sewer was installed after 1972, and that an expert s certificate, filed by the owner, attests that it is in good condition and the right size. SECTION III INSTALLATION SUBSECTION 1 MATERIALS A building sewer may be made of reinforced concrete, cast iron or PVC, in / 3

4 accordance with table of the Code. The stiffness for a 150 mm diam or less PVC building sewer may not be less than 625 kpa, in a diam/thickness ratio of 28. SUBSECTION 2 SIZE, SLOPE AND HYDRAULIC LOADS The size, slope and maximum permitted hydraulic load of a building sewer must be in accordance with article and section 4.10 of the Code. SUBSECTION 3 TIGHTNESS Every building sewer must be gas, water, air and smoke-tight, and be capable of withstanding the tests referred to in section 3.6 of the Code. A test report must be submitted to the director on request. SUBSECTION 4 PROTECTION FROM FROST All piping must be protected from frost as follows: (1) the piping system must be installed underground to a depth of no less than: (a) 1.8 m for a water service pipe, subject to paragraph 3; (b) 1.4 m for a building sewer; (c) 1.8 m for a building sewer and a water service pipe laid in the same trench; (2) the distance between the exterior wall of a water service pipe or a building sewer and the exterior wall of an exterior sump or a cleanout may not be less than: (a) 1.8 m for a water service pipe; (b) 1.4 m for a building sewer; (3) where an obstacle makes it impracticable to install pipes underground to the depth required under subparagraph (a) of paragraph 1, or when a sewer is replaced to a lower depth than the one required in that subparagraph, the pipes must be protected by insulation designed for piping, and covered with a protective sheath, and having the following properties: (a) a thermal resistance of no less than 1.4 m² C/W; (b) a crushing strength of no less than 200 kpa; (c) zero moisture absorption. SUBSECTION 5 CLEANOUTS Every building sewer, except surface building sewers, must be provided with a cleanout, built and installed in accordance with section 4.7 of the Code.".. That by-law is amended by adding the following chapter after chapter VII.1: / 4

5 "CHAPTER VII.2 STORM WATER RETENTION Subject to article 89.22, storm water retention on private property is required for any watertight surface having a total area exceeding 1000 m², whether it is a roof or a paved surface. Paved surfaces of 1000 m² or less may empty onto public property; others must drain into a drainage system All exterior paved surfaces, next to a building and below a neighboring lot, such as garage ramps and loading/unloading platforms, must be drained independently of the storm water retention system by a drain pipe connected to the drainage system of a building The peak flow of storm water drained to a public sewer, from a private property, may not exceed 35 l/s/ha for all paved and unpaved surfaces on the property, except on the territory shown on the plan of schedule A, where the peak flow is 18 l/s/ha. The first paragraph applies, even if there are exterior surfaces not drained to the storm water retention system, as referred to in article The required storm water retention must be carried out on property with whorled flow regulators, diaphragms or other devices or methods producing equivalent results, No device used may have detachable parts. On a roof structure, the retention may be carried out in accordance with article of the Code concerning flow control roof drains A roof structure must be drained by gravity. For other watertight surfaces, if pumps are unavoidable, they must be connected to a generating set The calculation of the required retention volume must be based on the precipitation frequency of 1 in 25 years, as shown in the table of schedule B The runoff water on paved surfaces used by motor vehicles may not reach more than 150 mm above sumps. For paved surfaces used by trucks for loading and unloading purposes, it may not exceed 450 mm A surface catch basin must be set up on private property and be designed to limit the accumulation of storm water to a depth of 600 mm. The bottom of the basin may be made up of natural gravel, pebbles or turf. The peripheral walls of the basin must be made up of concrete blocks, treated ties, pebbles, or reinforced concrete poured on site. No basin may be set up in the front yard of a property. For the purposes of this article, the words "front yard" are as defined in article 5 of the Urban Planning By-law (chapter U-1) An underground tank must: (1) be made of reinforced concrete, fiberglass or plastic; (2) consist of a corrugated galvanized steel pipe coated with asphalt or a perforated pipe on a bed of crushed stone; (3) consist of any other means of storage producing results equivalent to / 5

6 those referred to in paragraphs 1 and 2. A tank inside a building must be provided with an access hatch for the flow regulator, and an overflow pipe discharging above the street level A fiberglass or plastic underground tank must be installed on a concrete slab and anchored to it The drainage system of every exterior paved surface below the street level must be provided with a backwater valve No water service pipe, building sewer or retention structure may be covered without the director s authorization.".. The Plumbing By-law (R.B.C.M., chapter P-4.1) is repealed. t that by-law continues to apply to work for which a plumbing permit was issued by the city before the coming into force of this by-law or to work that was carried out without a permit before that date.. Article 20 of the By-law concerning fees (Fiscal 2001) (00-248) is repealed.. This by-law takes effect on the day the Plumbing Code (I-12.1, r.1.1) comes into force. HEDULE A AN OF CUROTTE-PAPINEAU BASIN * 9.23) HEDULE B CURVES FOR MONTRÉAL (DORVAL) * 9.26) ee file S SIC INFORMATION LE : S SOLUTION : CO PROVAL : N.A / 6

7 COMING INTO FORCE : August 11, 2001 AMENDMENTS : Nil / 7