Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "LEED Interpretation" "1565" "2006-09-18" "Existing Buildings" "MRp2: Toxic Material Source Reduction" "The building we are applying for LEED-EB certification is one of several buildings on a community college campus in Michigan. Currently, the college does not track purchases separately for each building because they typically make bulk purchases and distribute products to each building as needed. We have been able to determine the total purchases for the entire college. Using the size and population of the building we are submitting for certification, we would like to propose an alternative method of calculating the total purchases for our building. Would it be acceptable to the LEED-EB committee to determine the amount of purchases for our building based on a per square foot or per student basis? For example, if our building is 290,000 SF and the total of all buildings on campus is 1,200,000 SF, our building equals 24% of the SF. Based on this calculation, can we assume that 24% of all general purchases for the campus go to our building? (There are some specialty purchases for departments in proposed building we are able to track.) We are proposing to use this same strategy for the calculations required for Optimize Use of Alternative Materials, Optimize Use of IAQ Compliant Products, Sustainable Cleaning Products and Materials, and Additional Toxic Material Source Reduction in order to maintain consistency across the board. Please confirm this will be acceptable." "In a contiguous multi-building or campus environment within a single geographic region it is permissible to assign organization-wide purchases to specific buildings based on a square-footage analysis if those purchases inherently scale with building square footage with only a weak dependence on how each building is used. For example - if the campus as a whole purchases $1,000 in adhesives and sealants, the applicant may assume that a building representing 24% of the total square footage of the campus \'purchases\' 24% of those materials ($240), and calculate compliance with EB MRc3 accordingly. A similar procedure could be followed for furniture and furnishings in EB MRc2. However, quantities of office paper in MRc2 and mercury lamps in MRp2 and MRc6 depend strongly on the usage type of each space, and in these cases the Applicant needs to either prorate based on a different metric or provide evidence that prorating by square footage is reasonable (e.g., if virtually all buildings have a similar usage type, if exceptions or corrections are made for major variances, etc.). As the Applicant noted, specialty purchases should be assigned on a building-specific basis whenever feasible, and any extenuating circumstances which might suggest alterations to the square-footage analysis should be considered and documented accordingly. Calculations based upon a per student or per occupant basis would not be permissible unless the Applicant showed that the purchases inherently scale with the number of students or building occupants. Applicable Internationally." "None" "None" "X" "LEED Interpretation" "2032" "2008-01-29" "Existing Buildings" "MRp2: Toxic Material Source Reduction" "We feel that the building\'s current recycling contract and system of collection is more efficient and quite different than the system suggested by the prerequisite. The current recycling provider, Allied Waste Services, collects all the recyclables required by the LEED prerequisite in one container as part of their commingled recyclables program and has the capability to sort this material at their own facility. This makes separation and sorting of recyclables unnecessary at the building site. (Thus, there are essentially no areas in the building dedicated to recycling sorting, separation and storage, as suggested by the prerequisite.) In addition, to encourage recycling amongst office tenants, Yorktown Offices has provided enough bins to tenants for every desk. Yorktown\'s janitor collects the contents of these bins at the same time as the trash, twice weekly, and brings them directly to the outside dumpsters. This eases the burden on tenants by reducing the need to bring their own trash and recycling to centralized locations. Only one office tenant is large enough and generates enough large-volume material (mainly cardboard) to require a centralized location for breaking down and storing these materials. They provide this space on their own when needed. For these reasons we feel that Yorktown Offices meets the intent of MR prerequisite 1.2 while meeting or surpassing the recycling requirements in terms of materials collected, efficiency, and ease of use for the tenants. Please let us know if any further information is required." "What you have presented is acceptable to the USGBC. The commingled outside dumpster and tenant desk-side recycling bins are considered part of the building\'s separation, storage and collection of recyclables system and recycling area capacity. The separation and sorting of recyclables may be done at the building site or by the recycling provider at their own facility. Applicable Internationally. " "1647, 1796" "None" "X" "LEED Interpretation" "5058" "2007-07-16" "Existing Buildings" "MRp2: Toxic Material Source Reduction" "For an existing multi-tenant office building, how is this credit applied? Will it be necessary to gain agreement, track and report purchasing for all tenants in the building, or only for the core and shell building management portion of the building? The applicant is the building owner/manager." "Applicants are required to address all tenant spaces for all performance period building management and operational purchases in the building as they pertain to LEED-EB. This includes both sustainable and non-sustainable tenant alternative material purchases under MRc2. If tenants control some aspect of purchasing products in any of the categories relevant to this credit, the preferred approach is to acquire purchasing data from them and incorporate it into the calculations. If tenant purchasing information is not available, LEED-EBv2.0 allows an alternative approach that allows building applicant to still pursue MRc2 by assuming that all tenant purchases are non-compliant through the following methodology: 1. Calculate purchase rate of MRc2 products on floor area basis for the Applicant controlled building space Purchases [$ per SF] = (APPLICANT MRc2 product purchases [$] / APPLICANT floor space [SF]) 2. Use purchase rate from Step 1 to project purchase rate [$] in TENANT spaces Projected TENANT MRc2 products purchases [$] = (Purchases [$ per SF] * TENANT floor space [SF]) 3. Inclusion of project purchases in Step 2 in calculating the percent of compliant purchases for the whole building (With Inclusion of Non-Compliant Tenant MRc2.1-2.5 product purchases) APPLICANT MRc2 compliant purchases (%) = ((APPLICANT Compliant MRc2 product purchases ($)) / (APPLICANT total MRc2 products purchases ($) + Projected TENANT MRc2 products purchases ($))) Applicable Internationally. " "None" "None" "X"