Section 151.243. Peak discharge performance standard.

 

(1)   Requirement. By design, BMPs shall be employed to maintain or reduce the 1-year, 24-hour and the 2-year, 24-hour post-construction peak runoff discharge rates to the 1-year, 24-hour and the 2-year, 24-hour pre-development peak runoff discharge rates respectively, or to the maximum extent practicable. The runoff curve numbers in Table 2. shall be used to represent the actual pre-development condition. - See PDF for table

(2)   Exemptions. This section does not apply to the following:

(a) A transportation facility post-construction site where the discharge is directly into a lake over 5,000 acres or a stream or river segment draining more than 500 square miles.

(b) Except as provided under s. NR 151.241 (4) , a transportation facility that is part of a redevelopment project.

(c) Except as provided under s. NR 151.241 (4) , a highway reconstruction site.

CR 09-112 : cr. Register December 2010 No. 660 , eff. 1-1-11.

Note

Where the pre-development condition is a combination of woodland, grassland, or cropland, the runoff curve number should be pro-rated by area. Microsoft Windows NT 6.1.7601 Service Pack 1 The intent of s. NR 151.243 is to minimize streambank and shoreline erosion under bank-full conditions. Microsoft Windows NT 6.1.7601 Service Pack 1