This credit focuses on diverting waste from landfills by finding multiple alternatives for end uses of the waste, namely recycling, reuse on site, donation for reuse on another site, or resale. All of these diversion methods count towards credit compliance—50% construction waste diverted for one point, 75% for two points.
Look for opportunities to prevent the generation of waste on construction sites because the less waste you generate, the less you have to recycle or reuse to earn the credit.
There are two different approaches to recycling construction and demolition (C&DConstruction and demolition) waste: separating materials at the source (onsite), or commingling them and sending them to an off-site waste sorting facility. Either approach can work well. Your choice will depend on whether there is room for sorting onsite, whether the contractor is willing to take that on, and if there are good sorting facilities nearby.
The ease or difficulty of this credit depends on project-specific and regional conditions.
The general contractor (GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. ) is responsible for developing the CWM plan early in the construction process, if not before (during preconstruction). The GC does this in collaboration with the project team and is then responsible for implementing it, verifying that it is being followed throughout the construction process, and documenting the results.
Waste generated off-site, even for modular construction and pre-fabrication of major assemblies is not accounted for in the MRc2 calculations. MRc2 looks only at the management of waste generated onsite.
LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #10265 made on 01/01/2013 provides the best official guidance for this situation. The approach that is approved in that situation involves multiple buildings, all being certified to LEED-NC. The ruling allows the project to track together all demolition and construction waste diverted, and to then apply a weighted average based on gross square footageSum of the floor areas of the spaces within the building including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.5 ft or greater. It is measured from the exterior faces of exterior walls or from the centerline of walls separating buildings, but excluding covered walkways, open roofed-over areas, porches and similar spaces, pipe trenches, exterior terraces or steps, chimneys, roof overhangs, and similar features. to each LEED project. Each building must meet the required threshold for waste diversion in order to earn the credit and in addition, the Construction Waste Management (CWM) Plan must outline goals for diversion for each building, not just as an aggregate across all projects.
If your project is in a similar situation but with different specific circumstances, LEEDuser would recommend adopting that advice as closely as possible, while accounting for any differences in a way that meets the LEED credit intent. Some projects may want to get an official ruling—either a CIR or LEED Interpretation.
Yes, materials that would otherwise be waste, but that are diverted from the landfill to be salvaged or reused can contribute to MRc2.
No. Hazardous waste does not count and it is excluded from the numerator and denominator portions of the credit calculations. You may want to include a brief narrative on the hazardous waste you found and how your project abated the material.
There has been some debate about this, since on the one hand this waste does not qualify as typical C&D waste, but on the other hand it is waste generated onsite, which this credit is intended to address. LEEDuser's experts recommend including this waste because it falls under the broader definition of waste generated onsite, and because reduction, recycling and diversion programs can be extremely effective in reducing the quantity of this waste. Having workers pay attention to this waste makes them more aware of overall job-site recycling, and not mixing lunch waste with construction waste like scrap metal increases the recyclability of the construction waste.
USGBC has ruled (for example, see LEED Interpretation #10061) that diverting waste to incineration facilities does not contribute to MRc2, but that Wood Derived Fuel (WDF) does meet the intent of this credit. As that ruling states, "The WDF process differs from incineration processes that are not allowed in this credit because the recycling facility provides a value-added process; it is a service that exists to sort and distribute materials appropriate to the highest end uses possible. In addition, the revenue generated by the WDF commodity helps to make this business successful and thus facilitates recycling of wood to other end uses as well as recycling of other materials."
According to the LEED Reference Guide, land-clearing debris includes soil, vegetation, and rocks.
Use the solid waste conversion factorsEstimates are presented in customary U.S. units. Floorspace estimates may be converted to metric units by using the relationship: 1 square foot is approximately equal to 0.0929 square meters. Energy estimates may be converted to metric units by using the relationship: 1 Btu is approximately equal to 1,055 joules; one kilowatthour is exactly equal to 3,600,000 joules; and one gigajoule (109 joules) is approximately 278 kilowatthours (kWh). in the LEED Reference Guide to account for recycled materials in dumpsters billed by volume.
It is typically better to use project-specific diversion data when you can get it, and this data should typically be accepted in a LEED review. However, there are other options.
There are LEED Interpretations such as LEED Interpretation #10060 made on 5/9/2011 that allow use of a facility-wide recycling rate, if approved by local regulators. On similar lines, a 5/9/2011 addendum added this note to the LEED Reference Guide: “For commingled recycling the average annual recycling rate for a sorting facility is acceptable for recording diversion rates only when the facility's method of recording and calculating the recycling rate is regulated by a local or state government authority.”
Either identify a hauler with a strong recycling program, or research and find local recycling facilities to which you can send your hauler.
Research the waste management system:
Check local government websites for recycling programs. Also search for other ways to put materials back in circulation, such as exchange programs and brokers. For example, pallets and packaging can be sold or given away through these programs.
Construction materials vary with project location and building type. Some materials are easier to recycle than others. For example, copper wire and steel studs are readily recycled into new products, but vinyl tiles may not be. Research and specify what materials can be recycled, reused, or salvaged in the project’s municipality or region—and design with these materials so that waste scrap can be diverted from the landfill. For example, specify carpet from a manufacturer that has a take-back program, or ceiling tiles that are easily recyclable. Using precast concrete will avoid waste generation from in-situ concrete that will help in total waste generated.
Demolition projects can give away furniture, computers, and other equipment. Projects can also reuse items like doors, and crush demolished concrete and other paving materials to be reused as fill onsite. Demolition and renovation jobs can present many opportunities for salvaging items like wood timbers, architectural detailing, stonework, and millwork for reuse on another project, sale, or donation.
Research and use manufacturer “take-back” programs as much as possible. Manufacturers increasingly take back equipment and materials at no or low cost to the project. These programs are common with certain equipment and computers, ceiling tiles, and carpeting, for example.
Develop a list of construction materials from the budget estimate.
Determine if the waste will be measured by volume or by weight and keep it consistent. (Most projects pursue measurement by weight instead of volume.)
Target materials that are plentiful and either heavy or voluminous, depending on your documentation approach, and that are easy to recover and recycle to meet the 50% or 75% credit thresholds.
If discarding a lot of heavy stone, metal or masonry products, it will probably be more advantageous to track weight.
If discarding lots of packaging, insulating foam, and other light materials, you may prefer to track volume.
Selecting the right waste processor can minimize cost, but you have to strike a balance between cost and the feasibility of using that waste processing plant based on distance from the site and whether the hauler will agree to use that facility.
Recycling often generates revenue for the hauler who may then reduce the fee for the project. It also generates savings by reducing landfill tipping fees, which is beneficial to the contractor.
Contractors may claim that the CWM coordination and administrative oversight cost more money than recycling is worth, but many good contractors have figured out how to do CWM and can make it work for the same amount or less than typical trash hauling. This is somewhat dependent on the location of the project and available local resources.
If dealing with an existing building and a large amount of material is salvageable, consider deconstruction and materials salvage as an alternative to demolition. The contractor will have to oversee the process carefully. Many resources are available on deconstruction. (See Resources.)
Deconstruction will add extra cost to the project due to the additional labor required to take materials apart, remove nails from wood, and maintain material integrity. Ideally, the contractor will find a buyer for the materials to help offset these costs.
Thinking long term, consider what design decisions can increase the likelihood of deconstruction further down the road when specifying materials and systems to be used in the current project. Material selection and assembly type can impact how materials may be deconstructed and reused at the end of the building’s life-cycle.
Perform a site survey to decide whether deconstruction makes sense. This will depend on how the building was assembled and the value of the materials to be salvaged.
Deconstruction is a good practice for maintaining a building material’s integrity so it can be reused. It certainly diverts waste from landfill and contributes to credit compliance as waste diversion.
Typically, good materials to salvage via deconstruction include wood framing, steel columns and beams, hardwood flooring, multi-paned windows, architectural details, plumbing and electrical fixtures, hardware and cabinetry, and high-quality brick work.
Renovation and restoration projects are good candidates for deconstruction.
There are industry standards on good practices for deconstruction as well as directories of experienced contractors, such as the Deconstruction Institute (see Resources).
Deconstruction can take longer than demolition. Project teams should estimate whether the extra labor spent on deconstruction can be offset by the value of the salvaged materials. Other benefits to weigh include the environmental benefits of reduced waste and avoiding use of new resources, and publicity benefits for materials reuse.
The project team should discuss the appropriate recycling process, including whether sorting will occur on or off site. This decision may be made after the general contractor joins the team. Both options have pros and cons (see table).
Early in the project, the architect should be involved in the plan to schedule construction and deconstruction with the contractor.
Hire a general contractor early in the project to discuss the deconstruction process and phasing.
Integrate CWM plan and MRc2 requirements into the construction specifications.
For guidance on how to write LEED specifications and CWM requirements into construction documents, see MasterSpec (see Resources).
If separation is occurring off-site at a comingled or mixed-debris processing plant, make sure the processor or recycling facility can provide documentation for the amount of waste processed, by weight or by volume, as agreed, as well as a diversion rate from the facility. This could be either a project-specific diversion rate supplied by the facility, or a letter from the state regulating body with the facility's average rate of recycling.
Waste prevention is an important part of CWM.
Orienting the GC to the tracking tools early on and providing on-going support to the CWM effort is critical to success.
The GC and project team should hold an orientation meeting to review all LEED-specific issues related not only to recycling and reuse, or salvaging, but also to reducing waste onsite in general.
The GC develops the CWM plan.
A CWM plan is an action plan for how to deal with construction and demolition (C&D) waste. At a minimum, it needs to identify what the recycling goals are, what materials will be recycled, reused or salvaged, which materials will be landfilled, and the estimated amounts of each (either by volume or by weight, but consistently throughout the project), processors that will receive the construction and demolition waste, and onsite procedures for achieving the stated goals.
Developing the CWM plan is the responsibility of the contractor but, ideally, the project team should work together to come up with a thorough CWM plan that addresses not only recycling, but also reusing and salvaging as many materials as possible.
In developing a CWM plan, take into account regional constraints, and weigh the feasibility of recycling or salvaging materials against other environmental factors, such as the impact of hauling waste long distances if recyclers are far from the project site. In such an instance, if site conditions allow, one strategy would be to stockpile material to be hauled only once or twice during a project to cut down on transportation cost and associated environmental impact.
Source separating, or onsite sorting, can yield the highest recycling rate and the best price for materials. Try to encourage the contractor to locate separate containers onsite to sort the materials.
Providing a sample CWM plan and guidelines on how to communicate it to subcontractors and workers can help to minimize any hesitation on the part of the GC.
Hiring construction teams that already have LEED experience and are familiar with CWM is helpful for credit achievement. They may already have developed CWM plans, have existing relationships with haulers and recyclers, and know how to train construction field personnel in CWM practices and track diversion rates.
Review LEED requirements with contractors during the bidding process so that they understand their responsibilities.
Subcontractors should be contractually required to implement their part of the CWM plan. Accountability is key to successfully implementing a CWM plan.
Hire a special deconstruction contractor if required.
Provide a deconstruction-detailed drawing and specification with specific handling instructions for each material to be removed, such as whether it will be salvaged and sold, reused onsite, or marked for recycling.
Require measures for deconstruction in the CWM plan.
The GC is responsible for implementing the CWM plan and making sure the recycling and reuse goals are met. (The GC should make sure to review the action steps and tips associated with developing the CWM plan, above.)
Provide training for each contractor and subcontractor about the CWM plan and the importance of documenting it. Make sure everyone is on the same page regarding recycling goals. Make each training session specific to that trade.
As new subcontractors start work on site, have a LEED orientation session as part of safety trainings or other jobsite orientation meetings.
Consider designating a recycling coordinator (most likely someone in the GC’s office) to deal with all issues both onsite and off-site pertaining to CWM and making sure the plan is implemented properly and followed by all involved.
Weekly construction meetings should include an update, with a biweekly or monthly report collected by the LEED consultant, architect or owner. The CWM plan should outline this step, but it is important to make sure that all subcontractors and the GC are working together to comply during construction.
The contractor should communicate with all subcontractors about the recycling policy to make sure it is being followed. Recycling activities should be discussed regularly at job meetings.
A designated recycling coordinator can facilitate communication with all field personnel and address problems in the field promptly. This can reduce the risk of getting to the end of construction and falling short of diversion goals when it is too late to do anything about it.
The GC and recycling coordinator should track the deconstruction process and make sure requirements and specifications are being met.
The deconstruction contractor submits sales receipts, donation receipts, and recycling weight tickets to the GC or recycling coordinator, so the diversion rates can be included in the CWM tally.
Preserving materials for reuse reduces waste disposal fees.
Train the staff on how to streamline onsite waste sorting. Identify champions within each subcontractor’s team to lead the CWM effort for their teams.
Designate a separate area to place bins for recycling. If waste is commingled (for off-site separation by the recycling center), some additional space is still required to keep wet waste and other garbage apart from recyclables.
A good CWM plan will include measures for waste prevention so that less waste is created in the first place. Consider requesting subcontractors to ask their vendors to use minimal or take-back packaging. As an incentive, specify that all subcontractors are responsible for returning pallets or recycling their packaging.
Use signage to support the CWM plan—reminding subcontractors to sort waste appropriately. Post signs on the sorting bins, garbage cans, and throughout the site. Signs should include whatever languages are needed to communicate with workers on the jobsite.
The recycling coordinator tracks onsite waste recycling every month, or with every filled bin, to stay on track. The bins may fill at different times, depending on the material. Every time a bin is emptied and weighed, fill in the data on the tracking sheet.
In cities where tipping fees are high, a lot of waste haulers separate waste automatically, just to avoid the fees, so contractors and subcontractors may have to source-separate onsite anyway.
Consider fencing recycling areas, screening recycling and trash dumpsters from the public or locating them in an inconspicuous area. Neighborhood “use” of dumpsters to dispose of old mattresses and other furnishings is a problem that contractors deal with regularly, especially in cities where disposal of bulky items is expensive. On the other hand, in areas where there are limited resources for construction waste recycling, projects can stockpile wood and other potentially desirable construction waste and make it available to workers and the community to take home. This material can then count towards diversion.
If separation is occurring off-site, make sure recyclables are not contaminated with other garbage and wet waste. Provide separate containers for food waste and miscellaneous garbage and mark all containers clearly and prominently.
Keeping coffee cups and food waste out of recycling bins can be especially challenging. Use clear signage to prevent this and make it easy for food waste to be properly disposed of by providing trash cans clearly marked and in various locations on the site or at each building level.
If separation is occurring off-site at a mixed-debris processing plant, make sure the recycling facility can provide documentation for the amount of waste processed, by weight or by volume, as well as monthly recycling rate information, which is required for documentation purposes.
Keep an ongoing log of weight tickets and receipts. The GC needs to track construction waste throughout the construction process. It is crucial that contractors request and keep all receipts and weight tickets from recycling companies to prove that diversion goals were achieved, as well as letters from recycling companies certifying their monthly recycling rates.
Maintain a project log to input all the monthly reports in one place. This will track project waste recycling rates and provide an alert if the average is lower than the target of 50% or 75%. Address these shortfalls early in the process to ensure that final diversion rates can be met.
LEED project managers should provide contractors with tracking or log-book forms to simplify the tracking process. See the Resources section for the LEEDuser CWM tracking calculator.
Waste amounts must be tracked consistently, either by weight or volume. If materials are very heavy, it is best to use the weight approach. Most waste processors track by weight, anyway. But this will depend on what the bulk of the project’s waste is made of.
Do not include land-clearing debris or excavated soil or rock in your calculations. Even if diverted from landfill, it is not to be included in the credit calculations. Contractors often think that trees and stumps are still part of the diverted waste, but take them out of the LEED credit form and supporting documentation if the contractor includes them.
Compile construction waste recycling data from all the monthly reports, and complete your LEED documentation online for submission to the USGBC.
Monthly reports from recycling facilities, showing their average monthly recycling rates, are an appropriate form of documentation for this credit.
Build on construction waste management practices for future renovations and remodeling.
Excerpted from LEED 2009 for New Construction and Major Renovations
To divert construction and demolition debris from disposal in landfills and incineration facilities. Redirect recyclable recovered resources back to the manufacturing process and reusable materials to appropriate sites.
Recycle and/or salvage nonhazardous construction and demolition debris. Develop and implement a construction waste management plan that, at a minimum, identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility.. Excavated soil and land-clearing debris do not contribute to this credit. Calculations can be done by weight or volume, but must be consistent throughout. The minimum percentage debris to be recycled or salvaged for each point threshold is as follows:
You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.
Establish goals for diversion from disposal in landfills and incineration facilities and adopt a construction waste management plan to achieve these goals. Consider recycling cardboard, metal, brick, mineral fiber panel, concrete, plastic, clean wood, glass, gypsum wallboard, carpet and insulation. Construction debris processed into a recycled content commodity that has an open market value (e.g., wood derived fuel [WDF], alternative daily coverAlternative daily cover is material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging. material, etc.) may be applied to the construction waste calculation. Designate a specific area(s) on the construction site for segregated or comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility. collection of recyclable materials, and track recycling efforts throughout the construction process. Identify construction haulers and recyclers to handle the designated materials. Note that diversion may include donation of materials to charitable organizations and salvage of materials on-site.
Source for receiving salvaged or deconstructed materials.
Waste management solutions - New York only.
New York City's only non-profit retail outlet for salvaged and surplus building materials.
A step-by-step guide on deconstruction for contractors.
Template for writing specifications on construction waste management as part of the MasterSpec licensed spec system.
Federal Green Construction Guide for Specifiers sample spec language.
Sample CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. Plan.
Resources Guide to developing a CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. plan.
This is a resource database of contractors proficient with deconstruction and organizations, distributors, or contractors seeking material to salvage.
This website from the California Integrated Waste Management Board contains information on recycling and the use of recycled-content materials. The site includes many publications available for free download, such as sample construction and demolition debris recycling specifications.
This online database contains information on companies that haul, collect and process recyclable debris from construction projects sorted by zip code.
CMDepot is a place where you can buy & sell excess construction material, tools, & equipment. You simply login, submit a listing of your excess material, and wait for a buyer. If a buyer contacts you, you can work out payment details and a delivery method.
Comprehensive web page on construction waste management for large projects, with links to other resources.
WasteCapTRACE is an online documentation program for tracking construction and demolition debris recycling. It generates a custom construction waste management plan, provides a forum in which multiple team members can record data, and outputs reports and charts for your LEED submission. WasteCapTRACE is priced on a per-project basis, with fees linked to project square footage (like LEED application fees).
PlanetReuse is a nationwide reclaimed construction material broker and consultant company. They make it easier to use a wide variety of reclaimed materials in new projects as well as help find new projects for building materials being deconstructed, guiding owners and contractors through every step of the process. LEED documents are also provided for waste management documentation.
This guide is developed by wastematch.org, an organization that matches donors to recipients.
Model specification language that can be used by architects and engineers who want to reduce waste during construction.
Use clear signage such as in these example to keep construction and demolition waste separated for diversion purposes.
If you use commingled construction waste management, in which CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. is commingled and weighed off-site or calculated using a recycling facility's average diversion rate, you'll need special documentation to justify your rates for LEED. This sample was provided by Sustainable Solutions Corporation.
Use a tracking sheet and calculator like this one to monitor your credit compliance.
This document provides key tips and sample tracking sheets and checklists for your project's construction waste management (CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing.) plan.
Sample LEED Online forms for all rating systems and versions are available on the USGBC website.
I am conducting this survey in affiliation with University of Cincinnati in support of my hypothesis for my Master's thesis. It would just take 10-15 minutes of your time. By completing this survey you would help me in giving my research the required depth in understanding the achievability of the credit points in the Material and Resource category of LEED v2009 and v2013. I will send in the end results of this survey to you, which could potentially make your decision process easier on any future LEED registered projects you intend to work on.
The following is the link to my survey: https://www.surveymonkey.com/r/XR3ZVZN
Thank you in advance for taking the time!
we have a project where the waste management contractor is proposing to use clean construction rubble (non-hazardous rubble, where all recyclable components, eg steel, and hazardous materials have been removed) to fill an old open pit mine, which is undergoing rehabilitation. substantial quantities of clean construction rubble/fill are being procured for this rehabilitation project.
we are wondering whether this can be considered "diversion from landfill" given it fulfills the purpose of mine rehabilitation? is this something that has been done before? We cannot find any reference to open pit mine rehabilitation in the context of this credit in any of the LEED documentation.
Any guidance will be greatly appreciated.
Jutta - Sorry for my delayed response. I don't have any experience with your situation (waste used for mine reclamation) so I had to do some research.
You should review LI ID #2191 - http://www.usgbc.org/leed-interpretations?keys=2191 - and see how it compares to what your waste management contractor is proposing. Based on what I read there, mine backfilling is not an equivalent means of accomplishing construction waste management; however, the ruling is based on potentially recyclable materials being in the mine fill material.
If other LEEDusers have experience with this, please chime in.
I have a similar but slightly different variation on this theme.
Our C&DConstruction and demolition Waste hauler typically uses the following process to "recycle" sheetrock.
In a letter that I received from them:
"xyz Landfill. In accordance with our Type III Construction and Demolition Debris Permit and Wood Waste Management Plan, we beneficially use the following C&D debris materials...
Homogeneous loads of Concrete debris, roofing materials, and sheet-rock are acceptable for on-site use as road materials within the Permit Area. This reduces the need for virgin rock or stone to be mined and transported to our facility."
Has anyone had this same type of "recycling" approved by LEED either through the CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide process or just by submitting such documented use from the recycler." Like they say, the waste is a direct substitution for virgin material they'd need to acquire for that same purpose. There are no known local sheetrock recyclers in the project area other than this facility above. Therefore, there are really no other local options to having the sheetrock recycled in other means and besides to grind the sheetrock up to use a soil amendment would only then require more energy to grind it whereas, the sheetrock used as road base requires less energy to use in that manner.
Debra - My apologies for not getting back to you sooner as I was traveling for work.
I also was hoping that if any other LEEDusers had direct experience with your situation they would chime in.
The closest my experience comes to this is when waste concrete and masonry have been used by a landfill for its roads. (I've never seen sheet rock or roofing included.)I've not had a problem with this being accepted as it is diverted from the landfill and is replacing using virgin materials.
I think you can utilize the information contained in the LEED Reference Guide and cited in various LEED Interpretations including LI ID #2256: "Any construction debris processed into a recycled content commodity which has an open market value (e.g. alternative daily coverAlternative daily cover is material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging. material) may be applied to the construction waste calculation."
I agree. This is called "crushed base" here and it is always accepted. It's essentially making a stable layer under the road.
I saw a comment from several years ago that appears not to have been answered; a response would be useful to me now! Can anyone address this question? Here it is:
A large project with a building(actually buildings and parking lots) slated for demolition - the demo package contract is completely separate from the construction package, and will take place half/full year in advance of construction. The right thing to do is to include the demo in CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing., but is it technically required?
Margaret - When I first saw your question, I went to the Reference Guide (no guidance on this issue there) and then to the MPRs. At first glance I didn’t see anything applicable.
So, I went to find the question you indicated was unanswered, which I think is http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-2641. I see that Tristan included Valerie Walsh’s skillfully articulated answer from the LEED-CI MRc2 forum - http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-2554. If you look at the thread in LEED-CI, you’ll see that is followed up by a well-written response by Susan Walter - http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-17257. I think that Susan is referring to the intent of MPR # 3 - Must Use a Reasonable Site Boundary, which is: “All site conditions and impacts related to a building must be considered and addressed in the certification process to ensure a complete and thorough examination of the environmental impacts of a building.” (See Supplemental Guidance to MPRs - http://www.usgbc.org/resources/leed-2009-mpr-supplemental-guidance-revis....)
I agree with Susan that it is technically required. My approach has always been that if the demolition work is occurring within the LEED project boundary and it is being done in order to complete the LEED project, then it should be included. (And it is the right thing to do too!)
You could read a similar response in this thread: http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-55217.
Thanks, Michelle. That sure looks like the question I saw and I don't know how I missed the response.
Good answers - this will help!
I have a building located in a campus. Only the office tower is undergoing LEED certification but all 3 area being built concurrently. Basement is shared but clearly demarcated to each building, buildings have separate owners. I recently discovered that all the waste for the site is being calculated, not just the waste from the office tower. I suspect this credit will be approved, since the methodology of collection is OK, but I just want to see if anyone has had experience submitting waste additional to the project building.
Melissa - While it is laudable that you are hopefully diverting a lot of the waste from the landfill for all three projects, the total waste does not reflect your LEED project's waste alone.
See my response (http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-57828) under the heading Construction Waste Management-Multiple Buildings below for a similar post on this subject.
I'm working on behalf of a GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. on a complicated historic renovation and new construction project that's being done in several phases with separate contracts between Owner and GC. The project was registered with LEED NC 2009 during the 1st phase (but after the 1st phase started) so the C&DConstruction and demolition Waste was not properly documented at the beginning of the 1st phase and the LEED goals were never communicated to the GC until the end of the 1st phase, so C&D Waste Recycling rate will be VERY low. Now the design team has identified the C&D Waste Recycling Credit, 50% as one of the credits the GC needs to pursue. So it'll be complicated to calculate and also unclear as to whether or not waste from the 1st phase of work will need to be included in the C&D Waste Recycling Calcs for the main project contract which is Phase II and will start well after the project registration under v 2009. Any thoughts?
Also, the documentation of what was removed to be reused and what was repaired in situ is also also not properly documented and will be very messy to try & piece together at this point. So this is another issue (The original bldg. dates back to 1823 and much of what was supposed to be reused couldn't due to age/service life of materials.) But I feel that the project should get BOTH of the Bldg Reuse credits just based on the fact that the owner is trying to preserve the bldg. in tact as much as possible and is making repairs to preserve the remaining life of the bldg. Any ideas on this as well is greatly appreciated.
Debra - I can't answer part two of your question related to building reuse. I encourage you to post your question on the MRc1.1 or MRc1.2 forum(s) - http://www.leeduser.com/credit/NC-2009/MRc1.1 or http://www.leeduser.com/credit/NC-2009/MRc1.2. Be sure to review the Related Credits information for MRc1.1 and MRc1.2 in regards to MRc2 and vice versa.
It is unfortunate that the GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. was not included in the critical conversation regarding LEED and construction waste and that the waste diversion for the first phase is low and the records are messy. It is also unfortunate that the design team imposed this credit late on the construction team.
Based on what you have shared, my first thought is that you would have to include the waste from the first phase because the project was registered during that phase and the overall project's scope includes the first phase to make a complete project. In my opinion for a renovation project, you can't really pick and choose what to include/exclude - especially if it works to your advantage to exclude it, for instance. I would encourage a conversation with your design team to explain the potentially unrealistic nature of its late request for construction waste for the first phase. Maybe they will work with the construction team to substitute another credit that is more attainable?
(Also, I'm not sure if you mean the project was registered after first phase "had started construction" - but it is fairly typical that projects register after they have started design.)
Has anyone had any luck recycling glass taken from a commercial building? They are double pane commercial units removed from the curtainwall system. Our client is replacing a significant amount of glass on a 20 year old building to increase the overall performance of the building but we are having a hard time finding a place to recycle the glass units and this will be a large amount of weight in relation to the total amount of demo debris.
Donald - I haven't had success in this arena.
This 2011 blog implies that it can be used to make fiberglass and glassphalt - http://recyclenation.com/2011/09/window-glass-recycling-difficult-not-im.... It might be worth checking with manufacturers in your region. The blog also suggests some ideas for salvaging the windows.
I also found this resource in a quick Google search for window glass recycling - http://www.dlubak.com/ - "one of the largest recyclers of Window Plate and Container glass" with "six plants located in Pennsylvania, Ohio, Kentucky, Texas, Oklahoma, and Arizona, in addition to numerous depots throughout the US, Canada and Mexico."
If nothing else, removing the frame to recycle it separately from the glass might be an option.
However I hope other LEEDusers who have experience will chime in.
I'm concerned about our project earning points for MRc2. The country our project is in does not recycle very much, and most of the projects waste seems to be diverted to the landfill and not from the landfill. I'm not sure if the municipality recycles wood, plastic, etc... Our project has recycled scrap metal, asphalt, and gypsum.. We separate and sort waste on-site the best we can. Could the project loose points if there is a high percentage of waste going to the landfill ?
Ali - Not all credits are available to all projects. Based on what you've shared of your situation, your project does not appear able to earn MRc2 - as you are not able to meet the intent (diverting debris from disposal in landfills and incineration facilities.) So yes - if you were counting on earning points under MRc2, you would lose them.
But really, you can't lose points that you weren't able to earn in the first place. It sounds like you all should not have been counting on earning points under MRc2 based on the availability of recycling in your project's location.
Our project involves demolition. There are some materials - wood beams, bricks - that will likely be either donated to a reuse center or sold. Has a standard method of documenting this type of diversion been established?
James - I am not aware of a standard method. I just select Diverted on the form and provide information on the location where the material ends up. If I feel there is a need to clarify a unique situation, I use the Special Circumstances area of the form.
James, are you asking about how to track the weight or volume, or what kind of documentation (like receipts) to track?
We have Project intending to be registered under LEED 2009 BD+C for major renovations. This is an existing building which will undergo major renovation work for the interiors, HVAC and a large extent of the external façade (structural systems).
Following is the query related to the Materials category:
Should the documentation for the credits i.e. Construction Waste Management, Recycled Content, Regional Materials, Rapidly RenewableTerm describing a natural material that is grown and harvested on a relatively short-rotation cycle (defined by the LEED rating system to be ten years or less). and Certified WoodWood from a source that has been determined, through a certification process, to meet stated ecological and other criteria. There are numerous forest certification programs in general use based on several standards, but only the Forest Stewardship Council's standards, which include requirements that the wood be tracked through its chain-of-custody, can be used to qualify wood for a point in the LEED Rating System., only focus on the renovations or should it also include the portions of the existing building.
JP - You inquiry is a little unclear. What do mean by "only focus on the renovations or should it also include the portions of the existing building"? Do you mean there are portions of the existing building that are not being renovated and do you have to deal with existing materials for the MR credits?
Here's some general info: The MR credits apply to all activities within your LEED project boundary. The MRc3-7 credits address purchases made for the LEED project.
Thanks for the reply. What I would like to clarify is:
1. When we do credit calculation for MR Credit 2: Construction Waste Management, should we include waste details at the time of construction of existing building, which happened around 10 years back and details are not available as of now. Only waste management details of renovation that is going to happen will be available. So the scope of MR CR 2 calculation is for the entire building or only for renovation works is the specific query that I have.
2. Similarly for MR CR 4 and MR CR 5 will the calculation include material cost details of existing building materials (steel, concrete, cement etc.) details of which are difficult to obtain at this time, if these are to be included it will be difficult to achieve credit points for MR CR 4 & 5 as these materials constitute a major chunk of the total materials cost.
JP - A LEED project covers the extent of the project that is currently being undertaken. In the case of an existing building being rehabilitated under LEED BD+C: NC, you are only dealing with waste generated and materials used for that renovation project - not the original construction of the building. You do NOT have to go back in history to get information on the existing building.
This credit focuses on how much waste material leaving the site is diverted from LANFILL. My question is as follows:
If I am manufacturing wood offsite, and bringing the wood directly to the construction site, do I have to take into account the waste that was being produced offsite? There is definitely waste being generated onsite & We are certainty taking into account the waste being produced onsite. But, What about the waste offsite? LEED doesn't state nor specify recycling or diverting offsite waste from landfill. Can someone please confirm?
Ethen - This credit only deals with on-site generated waste. So to answer your first question - no - you do not have to take into account the waste that is being produced offsite.
It has come to my attention that in my local market, most if not all waste management companies use visual inspections to determine recycling rates for commingled loads. I am aware that this is not an acceptable method for meeting LEED requirements. Additionally, to the best of my knowledge, I do not believe that local or state governments regulate recycling facilities' method of recording and calculating their recycling rates. Fortunately, on a number of my projects, the waste hauler is delivering the commingled waste to a local facility that is RCI certified. Since the monthly average recycling rates for the facility are made available online on the RCI's website, my intention is to ignore the diverted weight percentage calculations that the waste hauler is providing (based on visual inspections), and to use the certified facility's recycling rates to calculate a diverted waste percentage in compliance with the requirements of MRpc87. Would this be an acceptable calculation for MRc2?
Marcia - Happy New Year! After we spoke at Greenbuild about this issue, I think you were headed to the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). Certification Work Zone to express your concerns with these visual inspections being passed off as true accounting of commingled materials. Did you get any help or guidance there?
I recently investigated MRpc87 for a client - yet I cannot say if USGBC would allow the Recycling Certification Institute's (RCI) certification rate in lieu of local or state government authority regulation (per LI ID #10060 - http://www.usgbc.org/leed-interpretations?keys=10060 and added to the Reference Guide per Correction ID #100000902 - http://www.usgbc.org/leed-interpretations?keys=100000902 ).
As I think all you will get is advice here, my recommendation is that you write a LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. inquiry for this situation. I think you could make a good case for it and having an LI would allow other projects to benefit from RCI's efforts.
Happy New Year to you as well, Michelle! Unfortunately, I was not aware of the fact that we had an RCI certified facility in the area before I spoke to the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). Rep at the Certification Work Zone, so I did not get to ask about that. I am open to submitting a LEED interpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. inquiry, as you suggested. However I cannot figure out how to go about doing that, and I have already spent the greater part of my morning trying to figure this out, with no luck. Do you have any experience with this?
As I understand it, inquiries are submitted via LEED Online - http://www.usgbc.org/help/how-do-i-submit-project-credit-interpretation-.... While I haven't used the system in the new LEED Online, here's what I see. After logging in, select a project that you will attribute the LI to. Once in that project, click Interpretations button in the grey menu bar. Click the Submit A New Inquiry button and follow the steps.
The sticky part is that there only seems to be an option for submitting Project CIR inquiries, and the fee schedule - http://www.usgbc.org/cert-guide/fees - only shows the price for Project CIRs, which are not precedent setting. It used to show that LIs cost $220 (Project CIR fee) plus $180 for Silver, Gold, and Platinum members…
However, there are numerous FAQs on both LIs and Project CIRs - http://www.usgbc.org/help/what-leed-interpretation - including the difference between the two - http://www.usgbc.org/help/what-difference-between-leed-interpretation-an....
Sounds like a call to Customer Service is needed. Yet the rep I spoke to could not provide additional information and said I should contact the certification team with my question via http://www.usgbc.org/contactus and selecting the Certification Question button.
Please let us know what you find.
I found this document while trying to get a more definitive answer for you - http://www.usgbc.org/sites/default/files/How%20to%20Submit%20a%20Credit%... (accessed from http://www.usgbc.org/resources/how-submit-credit-interpretation-request-...). It outlines how to submit LEED Interpretations.
Marcia - While I was re-reading the LEED v4 Reference Guide for Construction and Demolition Waste Management (MRc5), I came across these sentences under Step-by-Step Guidance in regards to commingled and thought of you: "The waste-sorting facility provides a waste diversion percentage specific to the project’s waste based on measurement of each component waste material. Visual inspection is not an acceptable method of evaluation for documenting this percentage."
While this is not specifically in the v3/2009 Reference Guide, possibly there has been an issue with folks thinking visual inspections are acceptable and USGBC attempted to squelch this practice (or perception) in LEED v4.
thanks so much for your constant follow-up and assistance with this. Visual inspections seem to be standard operating procedure for most waste haulers in this market and for some reason the majority of them seem to be unaware of the LEED requirements which state that this is unacceptable methodology. I have brought this to the attention of a few, and the response usually is that it is too costly to weigh each waste stream individually, and since they have not had any challenges by LEED reviewers on submitted reports based on visual inspections, there is not much incentive for them to make changes to comply. I would not be surprised to learn that other consultants would face similar issues, if they themselves understood that this procedure is what is being used. Most of the other consultants I have dealt with in my business are unaware and usually just assume that the waste reports they are receiving are compliant. I do intend to submit a LEED interpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. to get some feedback about using the RCI data, because it would benefit a number of my current projects, and it would allow me to know how to direct clients on future projects regarding this issue. I will provide some feedback after I have done this.
Marcia - I was searching for something else in the Addenda Database when the term "visual inspection" caught my eye. There are 3 LEED Interpretations (LI ID #2383 (1/29/2009), 5171 (1/29/2009), and 10060 (5/9/2011)). All three at least say "Visual inspection is not an acceptable method..." Not sure if you have submitted an LI yet about this situation, but these 3 LIs make it clear that visual inspection is not acceptable for calculating the amount of commingled waste in LEED. And since LIs are precedent setting, teams are required to follow them.
I have an update on this issue to report. First, thanks for your help with the LEED interpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. submission process. I followed the information in the document you posted the link to and was successful. One interesting thing to note, after selecting pay by check as the document suggested, I still received an invoice for the CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide submission fee ($220). I then contacted the USGBC to follow up and let them know that I had made a LI submission, but received an invoice with the incorrect fee, and was informed by the rep that the fee for LEED interpretations is actually $0! I was expecting it to be $180. They then adjusted my invoice and I got a response soon after that. The response was provided as a response to a project CIR, stating that it was only applicable to the project, although I had not submitted it under any specific project, but it does indicate that if I elected in the LEED Interpretation process then I can expect the second ruling in 3-6 mths. I am guessing that this is when the ruling will be made available publicly as a LEED interpretation. While that part of it is still a bit confusing to me, the response was favorable, and I was granted the ability to use the RCI facility average data in lieu of the annual facility rates that are regulated by local or state government.
what happens to the waste generated in the temporary offices within the project, are inorganic and organic waste. My question is whether this junk should quantify for credit, they are waste going to landfill.
Tonatiuh - Welcome to LEEDuser. As a guest, you can't access the FAQs above, one of which directly answers your question. The short answer is yes - this waste should be captured.
The FAQ contains more detail. Also, please be sure to click the "Single-page view" link at the bottom of the page so you can view all questions and answers on this forum at one time and thoroughly search them before posting your question. Here is one that also answers your question that you must not have seen - http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-3056.
The MRc2: Construction waste management credit is a regional priority credit in UAE one of the Saudi Arabian country eastern boundary and the Saudi Arabia is not one of the listed countries for regional priority credit in USGBC.
So my concern, if I can pursue LEED V2009 MRc2 in my project (located in Saudi Arabia – Riyadh city) as one of regional priority credits same as UAE.
It's a shame that USGBC's revised website doesn't provide more assistance on the Regional Priority lookup page - http://www.usgbc.org/rpc/LEED-NC/v2009. I do not know why Saudi Arabia is not listed on Regional Priority dropdown list. I believe that if the country is not listed then you would default to the basic international regional priorities as outlined in this LEEDuser article -http://www.leeduser.com/topic/non-us-regional-priority-credits-added-leed. According to a contact at USGBC, you should select Other Countries from the RP dropdown if your country is not listed. (I did not see this earlier as I was using Internet Explorer instead of Chrome to view this page. Other Countries is the last selection in the list.)
FYI: LEED Online will give you your project's regional priorities. Look for the pushpin icon on the Scorecard.
The RP credits for UAE are not necessarily the same for Saudi Arabia. If MRc2 is not listed as an RP credit for Saudi Arabia you cannot get it. Furthermore, each RP credit has a threshold which has to be achieved before being awarded. As Saudi Arabia is not listed in the RP dropdown list this means Saudi Arabia will be included in "Other countries" and from there you can see that MRc2 is not available as an RP credit. Hence, the available RPs for Saudi Arabia are EAc1, EAc3, EAc5, WEc1, WEc2 and WEc3.
Another thing I can suggest is that you log on to LEEDonline to your project and from there you can see from the credits list which credits have RP option.
Dear Engr. Daoud, how are you? Hope you are doing well.
RP credits for Saudi Arabia and UAE are not the same. MRc2 is available as an RP credit for UAE but not for Saudi Arabia. You cannot pursue MRc2 as an RP credit in Saudi Arabia. The available RP credits for Saudi Arabia in BD+C New Construction v2009 are EAc1, EAc3, EAc5, WEc1, WEc2 and WEc3.
You can also log on to LEED online to your specific project and check that these credits have RP point.
Saud Abdul Rasheed
Daoud - If your country is not listed in the dropdown menu on the Regional Priority Lookup link - http://www.usgbc.org/rpc/LEED-NC/v2009, you should select Other Countries (at the bottom of the dropdown) to show the Regional Priorities. The direct URL is http://www.usgbc.org/rpc/LEED-NC/v2009/other/.
I'm working on a project that has lots of demolition phases, because it depends on the expropriation of several buildings.
The first demolition occurred in 2011, when the project wasn't yet seeking LEED certification, and since then the records of this demolition phase were lost.
The second demolition phase occurred this year (2015) and demonstrated almost 95% of diversion, and the following phases (approximately 2), intend to seek the same diversion rate.
My question is: how do we account for the demolition waste generated in 2011? We're considering the following option, and would like to hear your thoughts:
- Estimate the volume of the demolition based on pictures and tipology of building and consider all of it was destined to a landfill.
And for the rest of the waste from all the other demolition phases we will keep the proper records and consider all of them in the calculations in order to achieve an average of at least 50% diversion.
Lara - I don't think you need to worry about demolition in 2011 - since this was before the project started seeking certification. You can't really be held accountable for documenting strategies before the project started the LEED process. And with the records being lost, I don't think you can make a solid estimate anyway.
Congratulations on such a successful second demolition phase. Keep up the good work!
One of our environmental companies have a lot of batteries that they want to recycle in our LEED project instead of send to landfills through encapsulate with concrete in the background hole of elevators. This could be an Innovation Design for MR c2: Construction Waste Management?
Paola - If I understand what you are asking, the most relevant forum for this question is Innovation in Design - http://www.leeduser.com/credit/NC-2009/IDc1. As a LEEDuser guest, you can't see the Bird's Eye View there that discusses Path 1 - Innovation in Design. It states that: "This approach must represent an innovative design approach to a problem, must be comprehensive in scope, and must have a quantifiable environmental benefit. Approach this path as if you were creating a new LEED “ID credit” from scratch."
The FAQs for IDc1 state: "However, there are some reliable guidelines that any project should consider:
The approach must be "innovative," i.e., not standard practice.
The approach must be comprehensive in scope. For example, many projects ask whether they can earn an innovation point for using a specific technology that is considered new or different, for example, an elevator that uses novel technology to offer energy efficiency. Use of a specific technology would not be considered comprehensive. (Doubly so in this case because energy efficiency is already covered under a LEED credit.) If you are starting out by considering a single technology, consider how you can expand that into a project-wide theme.
The approach must have a quantifiable environmental benefit.
You should also consider that earning an ID credit basically requires you to write a LEED credit, set certain quantifiable measures, and meet them. So a good test is to put your idea in terms of a LEED credit. What is the credit name, intent, and requirements? Could this same credit be used on another project (is it repeatable?), or is it extremely unique?
Many ideas will not hold up after applying these tests. Remember that a strategy might be a good idea even if it is not recognized for an ID credit, and that not every good idea meets the standards demanded by LEED."
Based on these guidelines, I am not sure if your idea is comprehensive in scope. In addition, you'd have to outline how this is a quantifiable environmental benefit. (For instance, when the building is torn down, what happens to batteries in the concrete? Would the batteries have a reaction with the concrete?)
Consider looking for other ideas for innovation at http://www.usgbc.org/credits/new-construction/v2009/innovation-catalog.
Batteries from other company could be encapsulated with concrete in the fund elevators instead of send to landfills? This could be a credit as Innovation Design for MR c2: Construction Waste Management?
In an effort to achieve a 95% diversion rate, my team will be submitting waste receipts for the demolition of two buildings that existed on our site before construction of the new project began. As a part of these demolition receipts, I have a series of "whitegoods" receipts for refrigerators, copy machines, drinking fountains, etc. which were recorded per appliance, rather than by weight.
Does anyone have experience in recording the recycling of white goods, and if so how would I best record them on LEEDonline given that they were not weighed at the time of recycling?
Chris - I don't have any personal experience with this but when I have documented recycled materials from the job, I've either gotten the weight or volume of the items to use for this credit. The LEED Reference Guide has a Solid Waste Conversion factor table but that doesn't help you much as it doesn't cover appliances. If you don't have model information, it will be hard to get the diverted material weight and have it be able to be defendable for LEED. Have you tried contacting any of the Resources in Section 12 of the LEED Reference Guide to see if they have any advice (like http://www.calrecycle.ca.gov)? I hope if other LEEDusers have experience with this that they will chime in.
Our Seattle region has a very developed state regulated construction waste diversion infrastructure. Over the past few years as methodology with respect to ADC and IWS has changed, local facilities are vying with each other to capture LEED project business. Some of these facilities, the ones that also accept solid waste, have difficulty maintaining a high enough monthly diversion rate to obtain the LEED points that projects are pursuing.
On several recent projects, the facility selected has been providing "eyeball audits" to substantiate the percentage of waste diversion. This style of reporting simply guesstimates what percentage of each material appears to be in that truckload. Then gets an overall weight for the load. The eyeball percentages are then used as if they represented actual material tonnages diverted.
This type of backup will not work for any NC, CI or EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating systems. project. Yet the facilities claim they are LEED compliant to project teams because these reports are apparently acceptable on LEED for Homes projects. Once a project has contracted with a hauler, this issue is very difficult to resolve.
Michelle, can you clarify whether LEED for Homes actually allows this kind of thing as backup?
Michelle - I either missed the notice for this message or didn't get it - my apologies. Unfortunately I don't work on LEED for Homes (Earthly Ideas strictly works on commercial, institutional, and industrial projects) so I don't have any experience with LEED for Homes. Sorry I can't be of more help but maybe other LEEDusers could chime in?
For insight into LEED for Homes, it might be expeditious to refer this question to the LEEDuser expert on the LEED for Homes Waste Management forum: http://www.leeduser.com/credit/Homes-v2008/MRc3.
I understand that I can re-use asphalt and concrete paving on the site for this credit, but does this also apply to the 6" type "A" crushed stone aggregate base below these paving types. We salvaged concrete and asphalt paving along with the crushed rock base when we started the project. We then ground this material and placed it back as compacted base material (8" thickness) under a much thinner asphalt paving.
Randy - Yes. Per the LEED Reference Guide (page 359 of first edition): "Projects that crush and reuse existing concrete, masonry, or asphalt on-site should include the weight or volume of these materials in the calculations. Any construction debris processed into a recycled content commodity that has an open-market value (e.g., alternative daily coverAlternative daily cover is material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging. material) may be applied to the construction waste calculation." Since your repurposed material is a processed rock base and not natural rock (Land-clearing debris is defined as soil, vegetation, and rocks) and it would have an open-market value, I think you can include it.
Wondering if anyone would have a resource for gypsum board recycling anywhere in Saudi Arabia. Thanks!
Construction waste will be separated onsite. It will be hauled (altogether in the same truck) to centers where workers clasify the waste and sell it to companys which take it to recycling plants. Waste not sold to recycling plants is sent to the landfill. However, it is difficult to find out what percentage of total waste is actually diverted from the landfill for a particular project. How can this procedure be documented towards credit compliance?
Alicia - How is the diversion information reported to you? Is there facility-wide information or is it project specific? I am referring the last FAQ above that starts with "The waste management facility we are using is providing..." Have you reviewed LI ID #10060 - http://www.usgbc.org/leed-interpretations?keys=10060?
Alicia—LI#10060 addresses using a “system recycling rate” monitored by a local government authority. This approach is also addressed in LI#3000 and Reference Guide Correction #100000902 (http://www.usgbc.org/leed-interpretations?keys=100000902). However, if your local government does not regulate recycling facilities, you cannot use this approach.
If a government monitored facility is not available, LI#5171 (http://www.usgbc.org/leed-interpretations?keys=MRFs) offers one possible approach to measuring “project-specific” comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility. loads similar to what you describe. As noted in this ruling, if your recycler uses “Methodology #1,” “they need to document actual percentage of material recycled based on actual weight or volume of material.” This would require weighing each load at the sorting center BEFORE sorting and weighing the landfilled, residual waste left over AFTER sorting. Calculate the percentage recycled:
100 x ( BEFORE – AFTER ) ÷ BEFORE = % Recycled
This could be an additional step for the sorters, and it would require them to sort and weigh each load separately.
Scenario : One single project, consisting of an office building (LEED Ceritified) & hotel building (NOT LEED Certified) in a very built up area with limited space. Both buildings are have the same site, project owner, management team, general contractor, and waste hauler company etc….
I would like to apply the ruling ID#10265 & ID#3000 that allows the project to track together all demolition and construction waste diverted, and to then apply a weighted average based on gross square footageSum of the floor areas of the spaces within the building including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.5 ft or greater. It is measured from the exterior faces of exterior walls or from the centerline of walls separating buildings, but excluding covered walkways, open roofed-over areas, porches and similar spaces, pipe trenches, exterior terraces or steps, chimneys, roof overhangs, and similar features. to the office LEED certified building. Is this possible and be awarded the points (assuming that the minimum percentages are respected)?
Ian - First I do not think that LI ID #3000 - http://www.usgbc.org/leed-interpretations?keys=3000 - regarding average annual recycling rate for commingled sorting is applicable to the scenario you present. Is this the one you meant?
While I have not used it in the way you propose, I believe that using the weighted average based on GSF as outlined in the LI ID #10265 should be acceptable in your scenario. (Please see the LEEDuser FAQ entitled "How does MRc2 work for projects pursuing a campus approach, or any project where waste management will be shared with other construction projects?")
FYI: Prior to LI ID #10265, I cited a successful cost-based methodology for a LEED and non-LEED certified project in this 6/28/11 post - http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-15245. I believe that LI ID #10265 trumps this methodology today.
Thanks Michelle, have looked at LEED ID#10265 in particular now and I think this is particularly relevant. Thanks so much for your comments.
I am working on a project that ended up using 2 separate waste haulers during the time of the project - one for the first half or so, and the second for the remainder of the project. One waste hauler has provided site specific tonnage while the other has provided facility rates. The waste was comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility. during both periods. My question is, can we submit a combination of the two? Has anyone been successful with this?
Sara - I've successfully submitted with two construction waste haulers in the past. As long as the material was diverted and you have the necessary backup, I don't see why you should have any problems with this methodology.
Is there a comprehensive directory of all the LEED certified recycling sites by state (or otherwise categorized)? I would love to see it.
Frances - I think you are looking for recycling centers that that are regulated by a local or state government in terms of commingled recycling rates for MRc2 (5/9/2011 Correction regarding average annual recycling rate for commingled recycling rates). I am not aware of such a list. (Please note that there are not that USGBC and LEED do not certify recycling centers for the purposes of this credit.)
Depending on which state you are working in, you might want to check on the State government's website. California has a robust C&DConstruction and demolition waste website - http://www.calrecycle.ca.gov/ConDemo/default.htm but I didn't dig deeper to see if they have a list of state-regulated facilities.
Frances - Not sure if you're referring to the LEED-approved recycling centers for Pilot Credit MRpc87 (Verified Construction and Demolition Rates). For that credit, at the moment only the Recycling Certification Institute's Certificate of Real Rates is considered compliant/applicable. The Recycling Certification Institute does publish a list of the certified facilities (https://www.recyclingcertification.org/certified-facilities/).
Frances - If Kristina is correct in what you are seeking, you might want to post a question on that Pilot Credit's forum - http://www.leeduser.com/credit/Homes-v2008/MRpc8. (Thanks Kristina!)
The entire purpose of MR2 is to divert waste from landfills, and the waste should be either recycled, donated, salvaged or reused.
My question is as follows:
My project is in a third world country.
The waste we generate onsite goes to what they call here a "Temporary landfill", and then international companies and local companies bid for our waste, and either recycle it, reuse it, salvage it or donate it. My company deals directly with the municipality that is in charge of the temporary landfill, and we obtain tickets saying how much wood, steel, plastic, cardboard, aluminum left our construction site. (in KGs)
What documents do I need to upload at the end of the construction project to GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC).? Would the tickets from Municipality suffice? I highly doubt that I could know which companies bid for our wood, steel, plastic etc. But I do know for a fact that our waste was recycled.
My second question is - Does the waste leaving the site have to go directly to recycling centers? Because in our case, our waste went to a temporary landfill, and then was picked up and recycled.
Ethen - I don't have experience with this type of situation and hence can't give you clear guidance in regards to your first question. I hope other LEEDusers will chime in. If not, consider reviewing this article and looking at the options that are available to you for reaching out to GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). - LEED reviewer experts are available to help you (http://www.usgbc.org/articles/leed-reviewer-experts-are-available-help-you).
Regarding your second question, it is very common in the U.S. for waste to go to a Materials Recovery Facility (MRF) to be sorted before it goes to the ultimate recycling facility. So, no, I don't think the waste has to go directly to a recycling center.
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