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Q-2, r. 9.01 - Design code of a storm water management system eligible for a declaration of compliance
Section 95
Disposition versions
95. Subject to the restrictions in the second paragraph, the following types of flow control devices must be used:
(1) orifice or orifice plate;
(2) flow restricting pipe;
(3) broad-crested or sharp-crested weir;
(4) vortex flow regulator;
(5) buoyant flow control devices providing a constant discharge.
Except in the case of peak flows equal to or less than 15L/s, vortex flow regulators or buoyant flow control devices providing a constant discharge may not be used in a dry retention system to reproduce peak flows with a period equal to or less than 25 years.
In force: 2020-12-31
95. Subject to the restrictions in the second paragraph, the following types of flow control devices must be used:
(1) orifice or orifice plate;
(2) flow restricting pipe;
(3) broad-crested or sharp-crested weir;
(4) vortex flow regulator;
(5) buoyant flow control devices providing a constant discharge.
Except in the case of peak flows equal to or less than 15L/s, vortex flow regulators or buoyant flow control devices providing a constant discharge may not be used in a dry retention system to reproduce peak flows with a period equal to or less than 25 years.
