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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?

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

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

SS 6.1 Case 2 options?

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Karen Joslin
principal
Joslin Consulting
LEEDuser Basic Member
140 thumbs up

Has anyone been successful applying the impounding/receiving stream protection approach for a previously >50% impervious site? Or will we absolutely have to live with reducing the storm event runoff the 25%?

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Profile picture for user tristanroberts
Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Thu, 08/30/2012 - 19:58

I want to second Karen's question. Has anyone out there used the receiving stream approach at all? Information on successful use of this approach has been hard to come by. If you don't feel like posting experiences on the forum, please contact me through LEEDuser.
Profile picture for user GreenKat
Kathryn West
LEED AP BD+C, O+M, Green Globes Professional
JLL
LEEDuser Basic Member
112 thumbs up

Thu, 05/30/2013 - 22:07

You will probably find this amusing: we just pursued this stream channel protection on a project and our LEED reviewer marked it "pending" and asked us for documentation for Case 1 Option 1.... even though we clearly pursued Option 2. Stock language is the worst! I have submitted an inquiry to GBCI customer service and hope to get this resolved quickly.
Profile picture for user bigm333
emily reese moody
Sustainability Director, Certifications & Compliance
Jacobs
LEEDuser Expert
469 thumbs up

Tue, 09/11/2018 - 22:39

Kathryn, just curious...what was the outcome?
Profile picture for user iglasgow
Ivy Glasgow
Independent Architect and Specifier
LEEDuser Basic Member
4 thumbs up

Tue, 04/02/2019 - 20:25

Following this question too- We have a project with strict local EPA requirements for protection of the watershed. It overlaps this credit so we are hoping that will be adequate to demonstrate compliance with protection of the stream channel. 

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