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NC-2009 MRc2:Construction Waste Management

Pulverized gypsum as landfill cap?

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Allison Rutter
Guam Sustainability Solutions LLC
LEEDuser Basic Member
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Hi, I'll be submitting a CIR on this, but does anyone have any guidance on redirecting drywall to be pulverized and used as a cap on a landfill closure? Wondering if there is an issue with this not being seen as a waste diversion from landfill. Allison

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LEEDuser Expert
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Tue, 06/10/2014 - 14:38

Allison - I'm sure you've checked the current LI Database (http://www.usgbc.org/leed-interpretations) on this subject, right? I can't remember an instance of using a material as a landfill cap but I've never looked specifically for it before. It sounds awfully close to alternative daily cover that is currently allowed. I’m sure you’re aware of the latest process with Project CIRs - http://www.gbci.org/Certification/Resources/cirs.aspx and the next step LEED Interpretations - http://www.usgbc.org/sites/default/files/LEED_Interpretations_Guidance.pdf. Maybe some other LEEDuser member has some experience they will share.
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Thomas Maier
Smith Gardner, Inc.
LEEDuser Basic Member
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Tue, 07/22/2014 - 19:58

The pulverized dry wall will emit hydrogen sulfide and should not be used for landfill cover.
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Craig Mahoney
Waste Services Project Manager
Guard Contracting Corporation
LEEDuser Basic Member
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Tue, 07/22/2014 - 20:23

Is the pulverized drywall from new drywall or used drywall?

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