Q-2, r. 9.01 - Design code of a storm water management system eligible for a declaration of compliance

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94. The flow control devices of the dry retention system must include
(1)  a device for ensuring compliance with the average flow during the passage of the erosion control rain, Qerosion;
(2)  a device for ensuring compliance with the peak flow established in subparagraph 1 of the first paragraph of section 79; the sizing of the device must take into account the flow discharged by the device provided for in subparagraph 1 of the first paragraph and, where applicable, the device provided for in section 103; and
(3)  a device for ensuring compliance with the peak flow established in subparagraph 2 of the first paragraph of section 79; the sizing of the device must take into account the flow discharged by the devices provided for in subparagraphs 1 and 2 of the first paragraph and, where applicable, by the device provided for in section 103.
Despite the foregoing, if a flow control device of the orifice or orifice plate type is used, the diameter must not be less than 75 mm.
O.C. 871-2020, s. 94.
In force: 2020-12-31
94. The flow control devices of the dry retention system must include
(1)  a device for ensuring compliance with the average flow during the passage of the erosion control rain, Qerosion;
(2)  a device for ensuring compliance with the peak flow established in subparagraph 1 of the first paragraph of section 79; the sizing of the device must take into account the flow discharged by the device provided for in subparagraph 1 of the first paragraph and, where applicable, the device provided for in section 103; and
(3)  a device for ensuring compliance with the peak flow established in subparagraph 2 of the first paragraph of section 79; the sizing of the device must take into account the flow discharged by the devices provided for in subparagraphs 1 and 2 of the first paragraph and, where applicable, by the device provided for in section 103.
Despite the foregoing, if a flow control device of the orifice or orifice plate type is used, the diameter must not be less than 75 mm.
O.C. 871-2020, s. 94.