Sustainable Sites: 14 possible pointsOverviewGOALSAn overarching goal of the new Stanford Graduate School of Business (GSB) Knight Management Center is to “take a leadership role in environmental sustainability,” and to achieve a LEED-NC Platinum certification.1 How the new campus deals with its site is very important in reaching these goals, and although the site has already been selected, care must be taken to ensure the new campus meshes well with the Stanford community. The new GSB should link with current campus infrastructure, improve the site, reduce heat island effects and emit minimal light pollution, all while blending with the character of Stanford’s architecture. The site plan, located on a large lot at the intersection of Serra Street and Campus Drive, includes many interesting features that can be used to drive sustainability. The GSB buildings themselves will include 340,000 square feet of floor space, and will address the goal of bringing the indoors and outdoors together in a manner similar to Stanford’s Main Quadrangle.METHODSMerge with Stanford Infrastructure -- The campus already has an extensive campus bus system and a strong bicycle-riding culture. The new GSB campus will utilize these preexisting resources by promoting public transit instead of personal vehicle use, providing storage facilities for bikes, and by encouraging the use of carpooling by alloting preferred parking spaces for environmentally friendly commuters. Restore the Site -- The site currently has four parking lots and two buildings; the new GSB campus will restore and beautify the space by providing more vegetation and open communal space. These open areas will also improve stormwater runoff by removing impervious asphalt surfaces currently covering the site. To further increase open space, all GSB parking will be located underground. Minimize Environmental Impacts -- The new GSB campus will minimize its own heat island effect by limiting hardscape and promoting the use of environmentally friendly roofing materials that still fit with Stanford’s red-roofed tradition. During construction, care will be taken to minimize disruption to the local environment. This campus will alsoseek to limit light pollution will providing a safe and efficiently lit campus at all hours of the night.Sustainable Sites: 14 possible pointsLEED-NC Scorecard1 Stanford Environment Sustainability Task Force: Final Report, 12/1/06.Billings, Millea, Victorsson | LEED-NC Analysis: New GSB Campus | SS Page 1Yes ? No11 2 1Sustainable Sites 14 PointsYPrereq 1Construction Activity Pollution PreventionRequired1Credit 1Site Selection11Credit 2Development Density & Community Connectivity11Credit 3Brownfield Redevelopment11Credit 4.1Alternative Transportation, Public Transportation Access11Credit 4.2Alternative Transportation, Bicycle Storage & Changing Rooms11Credit 4.3Alternative Transportation, Low-Emitting & Fuel-Efficient Vehicles11Credit 4.4Alternative Transportation, Parking Capacity11Credit 5.1Site Development, Protect of Restore Habitat11Credit 5.2Site Development, Maximize Open Space11Credit 6.1Stormwater Design, Quantity Control11Credit 6.2Stormwater Design, Quality Control11Credit 7.1Heat Island Effect, Non-Roof11Credit 7.2Heat Island Effect, Roof11Credit 8Light Pollution Reduction1Billings, Millea, Victorsson | LEED-NC Analysis: New GSB Campus | SS Page 2SS Prerequisite 1: Construction Activity and Pollution PreventionLEED-NC Credit: YES | UNSURE | NOPrerequisite IntentReduce pollution caused by construction activities. To demonstrate this, we will show what steps will be taken to control soil erosion, waterway sedimentation, and airborne dust generated during construction. FeasibilityThis prerequisite must be achieved to receive LEED-NC certification, therefore it is pursued. This project will meet this prerequisite by using an Erosion and Sedimentation Control (ESC) plan, and by meeting the three required objectives:1. Prevent loss of soil during construction by stormwater runoff and/or wind erosion, including protecting topsoil by stockpiling for reuse.2. Prevent sedimentation of storm sewer or receiving streams.3. Prevent polluting the air with dust and particulate matter.AnalysisThis prerequisite will be met by following Stanford’s own sustainability guidelines, as well as the pre-schematic design civil narrative provided by Arup. First, the Stanford Sustainability Guidelines2 state that soil erosion is to be prevented before, during and after construction, to be achieved by controlling stormwater runoff and/or wind erosion. The guidelines suggest implementing silt fencing, sediment traps, construction phasing, and maintaining or enhancing vegetation and groundcover. Given the relatively flat topography of the site (see Figure 3), slope stabilization methods for steep grades and hillsides will not need to be considered.Second, Arup’s pre-schematic design civil narrative3 indicates that “temporary erosion and sediment control (TESC) facilities will be provided during the construction of the project, in accordance with the ABAG Erosion & Sediment Control Manual.” Arup’s narrative continues by suggesting the following methods: “stabilized construction entrance, temporary swales, sediment basins, inlet protection, temporary seeding, protection of stockpiled materials.” This narrative also notes that “site won excavated material will be reused for on-site fill wherever possible,” reducing the need to ship excavated soil off-site.Currently, sediment traps are being used on other construction projects at Stanford (See Figure 2 below). As promoted by Stanford guidelines and outlined in Arup’s narrative, these sediment traps could greatly reduce soil loss and sedimentation during construction if used around the perimeter of the construction site, shown in Figure 1. 2 Stanford Sustainability Guidelines, Environmental Stewardship Committee. March 2002, pg. 19.3 Arup: Stanford GSB Pre-SD Civil Narrative, 30 April 2007, pg. 2 and 3.Billings, Millea, Victorsson | LEED-NC Analysis: New GSB Campus | SS Page 3SS Prerequisite 1: Construction Activity and Pollution PreventionLEED-NC Credit: YES | UNSURE | NOFigure 1: Plan view of existing site, before construction. Red line indicates approximate LEED project site boundary4 for new GSB campus as well as areas where sediment traps could be located to limit sedimentation from construction run off. From