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

Section 39
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39. Storm patterns for sizing storm water management works to control 10-year and 100-year floods must at least include Chicago type rainfalls of 3 hours and 6 hours having a return period of 10 years and 100 years, respectively.
The rainfall levels of the storm patterns must correspond to the rainfall level associated with the duration and 10-year or 100-year return period based on intensity-duration-frequency values of rainfalls.
O.C. 871-2020, s. 39.
In force: 2020-12-31
39. Storm patterns for sizing storm water management works to control 10-year and 100-year floods must at least include Chicago type rainfalls of 3 hours and 6 hours having a return period of 10 years and 100 years, respectively.
The rainfall levels of the storm patterns must correspond to the rainfall level associated with the duration and 10-year or 100-year return period based on intensity-duration-frequency values of rainfalls.
O.C. 871-2020, s. 39.
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