Prerequisites must be achieved. Non-compliant prerequisites must be resolved before a certification can be awarded.

Transcription

1 LEED Project 263 Version 2 How to Interpret this Report Purpose Environmental Categories LEED Prerequisites The Leadership in Energy and Environmental Design (LEED) Rating System was designed by the US Green Building Council to encourage and facilitate the development of more sustainable buildings. The William and Mary Student Recreation Center project was evaluated according to this system and the Final Rating is totaled below. The report is organized into five environmental categories as defined by LEED including: Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources and Indoor Environmental Quality. The category of Innovation and Design Process is also included. Prerequisites must be achieved. Non-compliant prerequisites must be resolved before a certification can be awarded. LEED Credits Achieved 29 Denied 6 Rating The environmental categories are subdivided into the established LEED credits, which are based on desired performance goals within each category. An assessment of whether the credit is earned, pending, or rejected is made and a narrative describes the basis for the assessment. The applicant has provided the mandatory documentation which supports the achievement of the credit requirements, achieving the associated points. Currently the project has scored the adjacent points in this category. The applicant has applied for a point in a particular credit, but has misinterpreted the credit intent or cannot substantiate meeting the requirements. Currently the project has the adjacent points in this category. Final Rating is Certified Official LEED v2 Scores: Certified: Silver Rating: Gold Rating: 39-5 Platinum Rating: 52 + Page

2 LEED Project Sustainable Sites Possible Points 4 Erosion & Sedimentation Control Prerequisite -Version 2. Preliminary Review: The signed LEED Letter Template states that the EPA BMPs have been followed. Measures include stabilized construction entrance, silt fence, inlet protection, rip-rap, topsoiling, permanent seeding, mulching, tree preservation and protection and site stabilization. Site Selection Credit -Version 2. Preliminary Review: The signed LEED Letter Template declares that the site does not meet any of the prohibited criteria. Urban Redevelopment Credit 2-Version 2. Preliminary Review: The project is using the v2.2 credit compliance path and a signed LEED v2.2 Letter Template has been provided. The v2.2 requirements for this credit are that the project must be situated within /2 mile of a residential zone or neighborhood with an average density of units per acre net and should be within /2 mile pedestrian access of at least basic services. A list of services that are within /2 mile of the project as well as a Google map showing the location of these services have been provided. However documentation concerning the location of a residential zone or neighborhood with an average density of units per acre net with respect to the project site has not been provided. TECHNICAL ADVICE: Please provide documentation showing that the project is situated within /2 mile of a residential zone or neighborhood with an average density of units per acre net. The provided campus maps demonstrate that there are a number of dorm complexes with unobstructed pedestrian connection situated within /2 mile of the project. Credit requirements met. Not Attempting Brownfield Redevelopment Credit 3-Version 2. Alternative Transportation, Public Transportation Access Credit 4.-Version 2. Preliminary Review: The signed LEED Letter Template states that there are 2 bus lines within /4 mile of the project site. A scaled site map and bus route maps have been provided. Alternative Transportation, Bicycle Storage & Changing Rooms Credit 4.2-Version 2. Preliminary Review: The signed LEED Letter Template declares that 42 bicycle stalls and 6 showers are provided within 2 yards of the project for 23 occupants. However it is unclear how the regular building occupants number (FTE) has been calculated. Please note that the all building users including full-time and part time staff and facility users must be included in the FTE calculations. Sample FTE calculations are provided as a part of CIR Rulings dated 3/23/25 and / 7/ 22. (Even though these sample calculations are for WEc3, the calculations are applicable to this credit as well.) TECHNICAL ADVICE: Please provide regular building occupant (FTE) calculations as outlined in the CIR Rulings listed above. Also please ensure that the FTE calculations correspond with the occupant numbers used in WEc3. The project has a total FTE ot 77 comprising of 23 regular occupants and 54 student FTE. The shower and bicycle stall facilities in the project exceed the requirements of this credit. Page 2

3 LEED Project 263 Not Attempting Alternative Transportation, Alternative Fuel Refueling Stations Credit 4.3-Version 2. Alternative Transportation, Parking Capacity Credit 4.4-Version 2. Preliminary Review: The project is using the v2.2 credit compliance path. The signed LEED Letter Template declares that no new parking has been provided. Not Attempting Reduced Site Disturbance, Protect or Restore Open Space Credit 5.-Version 2. Reduced Site Disturbance, Development Footprint Credit 5.2-Version 2. Preliminary Review: A signed LEED Letter Template declares that there are no local zoning requirements for open space, so an area of open space has been allocated adjacent to the building which is equal in size to the building footprint. A letter from the building owner as well as calculations have been provided. The provided calculations state that.66 acres were set aside. However it is unclear what the building footprint is. TECHNICAL ADVICE: Please confirm the building s footprint size and demonstrate that it is less than.66 acres. The provided narrative states that the total building footprint (proposed+existing) is.2 acres. Not Attempting Stormwater Management, Rate and Quantity Credit 6.-Version 2. Stormwater Management, Treatment Credit 6.2-Version 2. Preliminary Review: The signed LEED Letter Template has been submitted along with documentation demonstrating that the local standard for stormwater treatment is more stringent than the EPA standard, and that the local standard has been followed. Design procedure calculations for TSS removal and phosphorous loadings have also been provided. The percentage phosphorous removal achieved is stated as 8.5%. However the % of TSS removal achieved by the Austin Filter system has not been provided. TECHNICAL ADVICE: Please provide documentation showing the % of TSS removal achieved by the Austin Filter System. The calculations show that the Austin Filter System was sized to handle a TSS loading greater than what would be generated at the site. Not Attempting Landscape & Exterior Design to Reduce Heat Islands, Non-Roof Surfaces Credit 7.-Version 2. Not Attempting Landscape & Exterior Design to Reduce Heat Islands, Roof Surfaces Credit 7.2-Version 2. Not Attempting Light Pollution Reduction Credit 8-Version 2. Page 3

4 LEED Project Water Efficiency Possible Points 5 Water Efficient Landscaping, Reduce by 5% Credit.-Version 2. Preliminary Review: The signed LEED Letter Template states that the project's landscape design uses native plantings which do not require a permanent irrigation system. A narrative has been provided stating that the project does not have any turf grass and that the College uses native vegetation where possible. Water Efficient Landscaping, No Potable Use or No Irrigation Preliminary Review: Please see review comments under WEC.. Credit.2-Version 2. Not Attempting Innovative Wastewater Technologies Credit 2-Version 2. Water Use Reduction, 2% Reduction Credit 3.-Version 2. Preliminary Review: The signed LEED Letter Template and calculations have been provided demonstrating that water use has been reduced by 25.6% through the use of low-flow urinals, low-flow showers and low-flow lavatory sinks. The LEED v2. Reference Guide p.4 recommends WC flush and 2 urinal flushes per male occupant FTE and 3 WC flushes per female occupant FTE. The calculation in the LEED Letter Template however shows WC flush for 5 male occupants and urinal flush for 45 male occupants and 2 WC flushes for 6 female occupants. Also it is not clear how the occupant user numbers used in the calculations were arrived at. TECHNICAL ADVICE: Please provide revised calculations based on the methodology described in the LEED v2. Reference Guide p.4, and FTE calculations outlined in CIR Rulings dated 3/23/4 and /7/2. Also please ensure that the FTE occupant numbers used in this credit correspond with the FTE number used in SSc4.2. Revised calculations based on 77 total FTE and 5:5 ratio for male: female occupants show that a 32.7% reduction in water use has been achieved in the project. Water Use Reduction, 3% Reduction Preliminary Review: This credit was not attempted as part of the preliminary application. Credit 3.2-Version 2. Please see review comments under WEc3. Page 4

5 LEED Project Energy & Atmosphere Possible Points 7 Fundamental Building Systems Commissioning Prerequisite -Version 2. Preliminary Review: The signed LEED Letter Template declares that the required commissioning activities have been completed or are under contract. Minimum Energy Performance Prerequisite 2-Version 2. Preliminary Review: The signed LEED Letter Template declares that the project complies with ASHRAE CFC Reduction in HVAC&R Equipment Prerequisite 3-Version 2. Preliminary Review: The signed LEED Letter Template declares that the project's HVAC&R systems do not contain CFC-based refrigerants. Page 5

6 A D Requirements Submittals Optimize Energy Performance, 2% New /% Existing LEED Project 263 Preliminary Review: The signed LEED Letter Template, summary tables, and energy modeling output demonstrate a 27% savings between the design case and the budget case based on ASHRAE Energy efficiency measures include improved envelope, improved chiller efficiencies, and reduced lighting power densities. However the following issues were identified in the energy model and ECB calculations: ) The summary input table has not been provided. 2) The ECB table shows fan, space cooling and space heating enduses under both regulated and nonregulated enduses. No information has been provided explaining this. 3) It appears that the baseline building has an electric resistance heating system whereas the proposed building has a natural gas heating system. The ECB method does not allow savings obtained from energy source change. 4) The total building consumption and subtotal regulated numbers do not match in both the proposed case post processed data and baseline case post processed data tables. TECHNICAL ADVICE: () Please provide a table listing baseline and proposed model assumptions including envelope components, HVAC systems and schedules (2) Provide a narrative explaining why fan, space cooling and space heating enduses are listed under both regulated and non-regulated enduses (3) Explain the ASHRAE criteria used for selecting the baseline HVAC system (4) Provide a narrative describing the selection of the baseline. (5) Explain the discrepancy in the total building consumption and subtotal regulated numbers. Please provide a revised ECB calculation as needed in response to the questions above. Reduce design energy cost compared to the energy cost budget for energy systems regulated by ASHRAE/IESNA Standard (without amendments), as demonstrated by a whole building simulation using the Energy Cost Budget Method described in Section of the Standard. New Bldgs. Existing Bldgs. Points 5% 5% 2% % 2 25% 5% 3 3% 2% 4 35% 25% 5 4% 3% 6 45% 35% 7 5% 4% 8 55% 45% 9 6% 5% Credit.-Version 2. Regulated energy systems include HVAC (heating, cooling, fans and pumps), service hot water and interior lighting. Non-regulated systems include plug loads, exterior lighting, garage ventilation and elevators (vertical transportation). Two methods may be used to separate energy consumption for regulated systems. The energy consumption for each fuel may be prorated according to the fraction of energy used by regulated and non-regulated energy. Alternatively, separate meters (accounting) may be created in the energy simulation program for regulated and non-regulated energy uses. If an analysis has been made comparing the proposed design to local energy standards and a defensible equivalency (at minimum) to ASHRAE/IESNA Standard has been established, then the comparison against the local code may be used in lieu of the ASHRAE Standard. Project teams are encouraged to apply for innovation credits if the energy consumption of non-regulated systems is also reduced. Complete the LEED Letter Template incorporating a quantitative summary table showing the energy Page 6

7 A D 2 Requirements Submittals LEED Project 263 saving strategies incorporated in the building design. Demonstrate via summary printout from energy simulation software that the design energy cost is less than the energy cost budget as defined in ASHRAE/IESNA , Section. Based on the revised ECB table and point interpolation table, the project has achieved a 9% energy savings in comparison with the ASHRAE basecase. Optimize Energy Performance, 3% New /2% Existing Preliminary Review: Please see review comments under EAc. See Credit.. Same as Credit.. Credit.2-Version 2. Requirements Submittals The project team has withdrawn this credit. Optimize Energy Performance, 4% New /3% Existing Preliminary Review: Please see review comments under EAc. See Credit.. Same as Credit.. Credit.3-Version 2. The project team has withdrawn this credit. Not Attempting Optimize Energy Performance, 5% New /4% Existing Credit.4-Version 2. Not Attempting Optimize Energy Performance, 6% New /5% Existing Credit.5-Version 2. Not Attempting Renewable Energy, 5% Contribution Credit 2.-Version 2. Not Attempting Renewable Energy, % Contribution Credit 2.2-Version 2. Not Attempting Renewable Energy, 2% Contribution Credit 2.3-Version 2. Not Attempting Additional Commissioning Credit 3-Version 2. Page 7

8 A D Requirements Submittals Ozone Protection LEED Project 263 Credit 4-Version 2. Preliminary Review: THIS CREDIT HAS BEEN SELECTED FOR AUDIT. Please provide equipment schedules and cut sheets highlighting refrigerant information for all HVAC&R system components. Install base building level HVAC and refrigeration equipment and fire suppression systems that do not contain HCFCs or Halons. Provide the LEED Letter Template, signed by the architect or engineer, stating that HVAC&R systems as-built are free of HCFCs and Halons. Documentation has been provided showing that the two newly installed air cooled chillers in the project use HFC-34A type refrigerants. The existing PoolPak unit that serves the natatorium uses a R-22 refrigerant. Refrigerant replacement or phase out plan documents for the Poolpak have not been provided. Credit denied. Not Attempting Measurement & Verification Credit 5-Version 2. Not Attempting Green Power Credit 6-Version 2. Page 8

9 LEED Project Materials & Resources Possible Points 3 Storage & Collection of Recyclables Prerequisite -Version 2. Preliminary Review: The signed LEED Letter Template indicates that appropriate facilities for recycling have been provided. Recycling area calculations and a floor plan locating the recycling area demonstrate achievement. Building Reuse, Maintain 75% of Existing Shell Credit.-Version 2. Preliminary Review: The signed LEED Letter Template declares that 85.35% of the project's structure and shell have been retained. Calculations have been provided to support this claim. As per the LEED v2. Reference Guide p.96, if a project includes an addition that is greater than 5% of the existing building's square footage, the project is not a substantial renovation and hence is not eligible for this credit. The project information narrative states that the new facility is 82,635 sq.ft in area and includes 55, sq.ft of existing square footage. The newly added square footage % is very close to 5% threshold. Please confirm the accurate square footage of the existing building and newly added portion of the building. This information will be used in the final review to determine project credit eligibility. The project is using the LEED v2.2 compliance path for this credit. Based on the project areas provided the new addition is within 2% of the existing building square footage. Credit achieved. Not Attempting Building Reuse, Maintain % of Shell Credit.2-Version 2. Building Reuse, Maintain % Shell and 5% Non-Shell Preliminary Review: This credit was not a part of the preliminary LEED Application. Credit.3-Version 2. LEED v2.2 allows projects to achieve MRc.3 independent of MRc.&.2. A 76.98% re-use of interior non-structural elements has been achieved qualifying the project for this credit. Construction Waste Management, Divert 5% Credit 2.-Version 2. Preliminary Review: A signed LEED Letter Template declares that 52.58% of project construction waste was diverted from the landfill. A list of materials and where they were diverted to has been included. Not Attempting Construction Waste Management, Divert 75% Credit 2.2-Version 2. Not Attempting Resource Reuse, Specify 5% Credit 3.-Version 2. Not Attempting Resource Reuse, Specify % Credit 3.2-Version 2. Page 9

10 A D Recycled Content, Specify 5% LEED Project 263 Credit 4.-Version 2. Preliminary Review: THIS CREDIT HAS BEEN SELECTED FOR AUDIT. To support the calculations in the LEED Letter Template, please provide a product cut sheet, product literature, or letter from the manufacturer that clearly indicates the material cost of the product/material and whether each product contains post-consumer or post-industrial recycled material or both, and what percentages of each by weight. A revised LEED Letter Template has been provided declaring that the project has achieved a combined recycled content value of 2.9% of the total materials by cost. Cut sheets from manufacturers listing recycled content percentages, and a schedule of values with the recycled content materials highlighted have been included. Recycled Content, Specify % Preliminary Review: Please see review comments under MRc4.. Please see review comments under MRc4.. Local/Regional Materials, 2% Manufactured Regionally Credit 4.2-Version 2. Credit 5.-Version 2. Preliminary Review: The signed LEED Letter Template and supporting calculations have been provided declaring that 24.2% of the total project's materials by cost were manufactured within 5 miles of the project site. Not Attempting Local/Regional Materials, 5% Extracted Regionally Credit 5.2-Version 2. Not Attempting Rapidly Renewable Materials Credit 6-Version 2. Certified Wood Credit 7-Version 2. Preliminary Review: The signed LEED Letter Template declares that 59.54% of wood based materials are certified in accordance with FSC Principles and Criteria. Wood products constitute 3.75% of the total value of all materials for the project. Page

11 LEED Project Indoor Environmental Quality Possible Points 5 Minimum IAQ Performance Prerequisite -Version 2. Preliminary Review: The signed LEED Letter Template has been provided stating that the requirements of ASHRAE have been met. Documentation describing the ventilation rate procedure has been provided. Environmental Tobacco Smoke (ETS) Control Prerequisite 2-Version 2. Preliminary Review: The signed LEED Letter Template has been provided stating that no smoking is allowed in the building and outdoor smoking areas are located away from operable windows and entryways. Carbon Dioxide (CO2) Monitoring Credit -Version 2. Preliminary Review: The signed LEED Letter Template declares that a CO2 monitoring system has been installed. A narrative and calculations are provided indicating that the sensors are placed in each zone. A global CO2 monitoring point will be used to establish ambient CO2 concentration levels in the campus. The system is set with a differential of 53 ppm above ambient. Not Attempting Increase Ventilation Effectiveness Credit 2-Version 2. Not Attempting Construction IAQ Management Plan, During Construction Credit 3.-Version 2. Not Attempting Construction IAQ Management Plan, Before Occupancy Credit 3.2-Version 2. Low-Emitting Materials, Adhesives & Sealants Credit 4.-Version 2. Preliminary Review: A signed LEED Letter Template declares the use of compliant adhesives and sealants. A list with associated VOC levels has been provided. Low-Emitting Materials, Paints Credit 4.2-Version 2. Preliminary Review: A signed LEED Letter Template declares that all paints, including topcoats and primers, meet the VOC requirements of Green Seal. A budget VOC calculation of all paints in the project has been provided. Low-Emitting Materials, Carpet Credit 4.3-Version 2. Preliminary Review: A signed LEED Letter Template has been provided declaring that the project uses carpeting that complies with the CRI Green Label Program. Low-Emitting Materials, Composite Wood Credit 4.4-Version 2. Preliminary Review: A signed LEED Letter Template has been provided declaring that all composite wood and agrifiber products used in the project do not contain added urea-formaldehyde. A list of products has been included stating that Phenol or resorcinol are the resin/ binding agents used in the project. Page

12 A D Indoor Chemical and Pollutant Source Control LEED Project 263 Credit 5-Version 2. Preliminary Review: THIS CREDIT HAS BEEN SELECTED FOR AUDIT. Please provide narratives, drawings and cut sheets supporting the declarations made in the LEED Letter Template. Document permanent entryway systems, construction methods (deck to deck partitions, independent ventilation system etc.) in chemical use areas, and drainage systems appropriate for disposal of liquid waste in areas where water and chemical mixing occurs (i.e. janitors' closets). Documentation should also clearly identify the location of copiers and centralized copying areas or alternatively confirm the lack there-of. Photographs of installed walk off mats, copy of the floor plan showing the location of the mats, narrative and calculations demonstrating dedicated exhaust for janitor rooms, and plumbing plans demonstrating the provision of a service sink have been provided. Credit requirements met. Not Attempting Controllability of Systems, Perimeter Credit 6.-Version 2. Not Attempting Controllability of Systems, Non-perimeter Credit 6.2-Version 2. Not Attempting Thermal Comfort, Compliance with ASHRAE Credit 7.-Version 2. Thermal Comfort, Permanent Monitoring System Credit 7.2-Version 2. Preliminary Review: THIS CREDIT HAS BEEN SELECTED FOR AUDIT. Please provide drawings, specifications and cut sheets highlighting the installed permanent temperature and humidity monitoring system. Include a narrative describing measurement points (trending or logging data) and operator interface. Also provide an excerpt from the commissioning specifications indicating that these controls are covered in the scope of work for EAp. Documentation has been provided demonstrating that a permanent temperature and humidity monitoring system is installed in the project. Not Attempting Daylight and Views, Daylight 75% of Spaces Credit 8.-Version 2. Not Attempting Daylight and Views, Views for 9% of Spaces Credit 8.2-Version 2. Page 2

13 LEED Project Innovation & Design Process Possible Points 5 Educational Outreach Credit.-Version 2. Preliminary Review: The project warrants an Innovation in Design credit for Educational outreach. A letter has been provided stating that the Architects of the facility will provide an annual educational presentation highlighting the high performance features of the project to student and staff for a period of four years. Signage will also be posted all around the building highlighting the high performance features. Requirements Submittals Exceptional Performance in Stormwater Treatment Preliminary Review: Although the removal of phosphorous from the stormwater exceeds the requirements of SSc6.2, and is commendable, this action alone is not sufficient to merit an ID credit. Same as Credit.. Credit.2-Version 2. Provide the proposal(s) within the LEED Letter Template (including intent, requirement, submittals and possible strategies) and relevant evidence of performance achieved. Post Occupancy Survey Credit.3-Version 2. Preliminary Review: The project warrants an Innovation in Design for the Post-Occupancy Survey that will be carried out in the project. A letter has been provided stating that the project Architects will contract January st 26 with University of California, Berkeley to carry out the survey. As the date of credit review is January 27, a copy of the signed contract is requested. TECHNICAL ADVICE: Please provide a copy of the signed contract with CBE, University of California, Berkeley to carry out the post-occupancy survey. A copy of the signed contract with CBE, University of California, Berkeley to carry out the postoccupancy survey has been provided. Not Attempting Innovation in Design Credit.4-Version 2. LEED Accredited Professional Credit 2-Version 2. Preliminary Review: The signed LEED Letter Template has been provided declaring that a LEED Accredited Professional has been a participant on the project development team. A copy of the LEED Accredited Professional Award Certificate for John P. Dunn has also been provided. Page 3