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How is construction waste accounted for when utilizing off-site construction, like modular construction or pre-fabrication of assemblies?

How does MRc2 work for projects pursuing a campus approach, or any project where waste management will be shared with other construction projects?

Can materials that have been unused and returned to the manufacturer as part of a “take-back” program contribute to the credit?

Should I include hazardous material such as lead-based paint in MRc2 calculations?

Should household-type trash from workers' lunches and office use be included in MRc2 diversion and calculations?

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The requirements of this credit say that land-clearing debris does not contribute to the percentage of materials diverted from the landfill. What exactly is considered "land clearing debris"?

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The waste management facility we are using is providing us with monthly documentation specific to our waste, showing 80% diversion. They also have a published, facility-wide rate of roughly 20%, and they have no published rate for construction waste. Will

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NC-2009 MRc2:Construction Waste Management

Tracking / documenting items being reused from demo'd bldg

On our site we have several items that will be salvaged from our demo'd building/site (furniture, playground equipment) that will be used with the new building/site. How do we track this so we get credit for MRc2 if we need weight/volume for the items? The playground equip will be dismantled (and temp. stored off-site) by a site contractor or a playground vendor, and the furniture would probably be handled by a mover (to be stored temp. off-site also). has anyone else had this issue, and what kind of documentation was acceptable?

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Profile picture for user Jennifer.frey
Jennifer Frey
(old outdated email address)
LEEDuser Basic Member
45 thumbs up

Fri, 05/20/2011 - 15:59

For MRc2 I have encouraged my vendors removing and re-installing items to determine the weight of their vehicle and trailer by 1) reviewing owner's manuals for weight of vehicle and trailer or 2) running it empty through a truck scale on a nearby interstate, or local transfer station, or place where you buy aggregate or mulch. Then have them run the full truck and trailer through the scales again to determine the amount of the furniture/play equipment. This would be the most accurate way to measure. Or you could look up product data sheets on the exact or similar furniture and play equipment to get approximate weight. Also, if the original location of these products is within 500 miles of the new project site, then you can count these materials for MRc5. The $ material value to use for this credit could be either what the replacement cost would have been or what you paid for the materials (removal, storage, installation). Good luck!

Fri, 05/20/2011 - 18:29

Thanks Jennifer, the truck weighing idea was something I wondered about, but after an internet search, I'm realizing that there aren't any weight stations open in the area any more. Driving an hour one way to get weighed doesn't seem very sustainable. I may have to attempt to gather the data via product data sheets (this will not be fun). Just to be clear, since it would be diverted and NOT commingled waste, I wouldn't have to have any official statement/receipt from a company to prove my calcs? I could just do due dilligence, calculate to the best of my ability, and call it a day for those items that are salvaged by the client?
Profile picture for user Jennifer.frey
Jennifer Frey
(old outdated email address)
LEEDuser Basic Member
45 thumbs up

Fri, 05/20/2011 - 18:37

I am not clear on the specific requirements for documentation. I have heard others say only comingled loads need to be documented, but this may be for just the new version of LEED Online? Because, I have had review teams request haul tickets and documentation for every load/product on the old version of LEED Online, I continue to provide haul tickets, salvage tickets, my own spreadsheets for calculating reused products, and monthly facility diversion rate sheets. So far this has not been questioned. Perhaps just have your spreadsheets ready to submit if clarifications are requested?

Thu, 05/26/2011 - 21:35

Glad to see they seem to have been accepting of your calculation spreadsheets. I am going to take that route: do my own calculations in a spreadsheet and submit it as part of my documentation. Thanks!
Profile picture for user walshval
Valerie Walsh
Sustainable Design & Construction Consultants
Walsh Sustainability Group
LEEDuser Basic Member
152 thumbs up

Thu, 05/26/2011 - 21:56

Renee, since you are submitting your question under v3, I will assume you have a v3 project. That said, I would recommend only uploading the required documentation for MRc2, which is for Comingled Waste. Of course it is imperative to have your internal spreadsheets ready to go for the GBCI Reviewer if asked. Our approach to LEED documentation is to submit only, but fully, what is asked for but be prepared to provide verification if that credit is challenged. As a LEED consulting firm, we require the backup of the contractor in the monthly progress reports to verify that the team is on track with the project goals and to be sure the credit requirements and reporting is fully understood.

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