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FAQs about SSc6.1 :

Why do the requirements focus on 1-year and 2-year, 24-hour storms?

Why include the 1-year storm in the credit requirements? Won't management practices for the 2-year storm be effective?

How can green roofs count as a stormwater control measure?

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The calculations for this credit are always a headache! While our projects are usually awarded the credit, the equations in the LEED Reference Guide are helpful mostly for sizing a reservoir or cistern, but don't help you get to the final results. Does US

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NC-2009 SSc6.1:Stormwater Design—Quantity Control

Peak discharge/flow rate

hana manai

LEEDuser Basic Member

0 thumbs up

Project location :

December 22, 2015

Which formula do you use to calculate peak flow rate (1 and 2-year, 24hours). I am using NRCS (SCS) TR-55 Graphical Discharge Method. Is that recommanded?

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Michael DeVuono

Regional Stormwater Leader

Arcadis North America

LEEDuser Expert

144 thumbs up

Mon, 12/28/2015 - 22:50

While the actual methodology is not specified, you'll never go wrong using SCS.

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