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CS-2009 SSc6.2:Stormwater Design—Quality Control

6.2 90% Rainfall Trtmnt vs. Drainage Boundaryvs. Leed Boundary

Does anyone know if Drainage Areas tributary to Treatment BMPs used to atain the 90% rainafall treatment and 80% TSS removal must be contained within the LEED Boundary. Also must the BMP facilities be contained within the LEED Boundaries? Is there regulatory language that specifies this? Its seems beneficial to keep the LEED Boundary as reasonably small as possible to enable the & open Space % and Resortation % high but this excludes some drainage areas.

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Wed, 02/22/2012 - 13:30

Dan, you may have stormwater treatment area outside the LEED boundary. See the LEED Minimum Program Requirements supplemental guidance document from USGBC for detail on this.

Wed, 02/22/2012 - 14:04

I presume you're referencing this language: ? I take "any land" to mean any Stormwater BMP used for Treatment or Draiange Area thereto. When land included in submittals may be excluded from the LEED project boundary Land described in this section is not required to be included in the LEED project boundary, and therefore is not subject to consideration for prerequisite, other credit, or other MPR compliance. ALL RATING SYSTEMS: STORM WATER DESIGN CREDITS Any land used to earn this credit.

Wed, 02/22/2012 - 16:18

Dan, you got it. Does that help?

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