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FAQs about SSc6.1 :

How can I achieve compliance if my project's stormwater control measures are outside the LEED project boundary?

I have 100-year data—how do I convert to 2-year?

Is it an acceptable strategy to capture the rainwater into tanks and discharge it into the public sewers after the rainstorm reducing the peak discharge?

Are there special considerations for international projects?

What performance threshold do I need to achieve for an Exemplary Performance point?

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

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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Forum discussion

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

The data I have to work with

Kash Boodjeh

LEEDuser Basic Member

21 thumbs up

July 19, 2011

The data I have to work with for filling this credit out are pre- and post-development calculations for a 100 year storm with a duration of 1 hour. How does this relate/convert to 1-yr, 24 hr and 2-yr, 24 hour design storms? Thank you!

Post a reply

Susann Geithner

Principal

Emerald Built Environments

LEEDuser Basic Member

900 thumbs up

Thu, 08/11/2011 - 17:20

It doesn't. You will have to obtain the 1yr, 24hr and 2 yr 24 hour storm data form your local weather service. It's a totally different value. In general if the systems were designed to handle the 100 year storm than they are very much capable to handle the others. I did a project in German with the exact same question.

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