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HomeMy WebLinkAboutStaff Report 272-10TO: HONORABLE CITY COUNCIL PLANNING AND TRANSPORTATION COMMISSION FROM: CITY MANAGER DATE: JUNE 14,2010 REPORT TYPE: PUBLIC HEARING DEPARTMENT: PLANNING AND COMMUNITY ENVIRONMENT CMR: 272:10 SUBJECT: Stanford University Medical Center Facilities Renewal and Replacement Project Draft Environmental Impact Report -Comment on the Draft Environmental Impact Report, including an overview ofthe Visual Quality, Biological Resources and Cultural Resources Chapters. EXECUTIVE SUMMARY Staff recommends that the City Council and. Planning and Transportation Commission (P&TC) provide and accept public comments on the Draft Environmental Impact Report (Draft EIR) for the Stanford University Medical Center Facility Renewal and Replacement Project (SUMC Project) and forward comments to staff and consultants for response in the Final Environmental Impact Report (Final EIR). The Draft EIR began a 69-day public review period on May 20,2010. The review period ends on July 27,2010. Multiple meetings will be held with the City Council and P&TC to accept comments on the Draft EIR. The P &TC will hear this item on June 9, 2010. The staff report provides an overview of the Visual Quality, Biological Resources and Cultural Resources chapters of the Draft EIR, including the key impacts and mitigation measures. RECOMMENDATION Staff recommends that the City Council and Planning and the Planning and Transportation Commission: 1. Accept public comments on the Draft ErR; and 2. Forward comments on the Draft ErR to staff and the consultant for response in the Final EIR. BACKGROUND On May 20, 2010, the SUMC Project Draft EIR was published starting a 69-day public review _p_erio_d.~hisjs_the_second_public_hearingjn_a_seriesoLmeetings-on-the Draft EIROn June 9 the P&TC will hold a public hearing on the items identified in this staff report. Copies of the Draft EIR can be obtained at the City of Palo Alto Development Center, at the Palo Alto Main Library and via the City's website, www.cityofpaloalto.org/sumc. \ City of Palo Alto Page 1 ENVIRONMENTAL REVIEW Staff will provide an overview of the following chapters at the meeting: • Visual Quality (pages 3.3-1 through 3.3-56) • Biological Resources (pages 3.9-1 through 3.9-32) • Cultural Resources (pages 3.8-1 through 3.8-29) The comments on these chapters should be focused on whether the information presented in the Draft EIR adequately covers the environmental impacts that could result from the proposed SUMC Project. The hearings are not meant to provide a forum for dialogue about the project merits, but to be opportunities to collect comments on the Draft EIR to ensure that it adequately describes the environmental impacts of the Project. 1. Visual Quality Visual Quality impacts are addressed in Section 3.3 of the Draft EIR. Visual quality pertains to how people see and experience the environment, particularly its visual character. William Kanemoto and Associates prepared visual simulations analyzed in the chapter. Significance Thresholds Based on significance thresholds determined by the City of Palo Alto, the SUMC Project would result in a significant visual quality impact if it would: • Substantially degrade the existing visual character or quality ofthe site and its surroundings; • Significantly alter public viewsheds or view corridors or scenic resources (such as trees, outcroppings or historic buildings along a scenic roadway); • Require substantial terrain modifications that would degrade the visual character of the site; • Allow for new development that would violate existing Comprehensive Plan policies regarding visual resources; • Create a new source of substantial light or glare which would adversely affect day or nighttime views in the area; or • Substantially shadow public open space (other than public streets and adjacent sidewalks) between 9:00 a.m. and 3:00 p.m. from September 21 to March 21. Key Impacts and Mitigations The following impacts have been identified as significant (S); however the impacts identified in this chapter can be eliminated through mitigation. The mitigation measures developed for each of the impacts are identified below. ---~-.-"l[Q=-L:-Temporary-degradation-of-v:isual-character during construction (S). Mitigation Measure- o VQ-1.1: Implement construction visual improvement plans; City of Palo Alto Page 2 • VQ-2: Permanent degradation of visual character post construction (S). • VQ-3: Alteration of public viewsheds (S). • VQ-5: New sources oflight and glare (S). Mitigation Measure - Discussion o VQ-2.l: Compliance with the City's Architectural review process and recommendations. Significance determinations for the impact analysis are based on the extent of changes in the visual character and quality of the SUMC Sites and surroundings, as well as the change in quality of views from key vantage points. Changes in visual character are affected primarily by building scale, height, and mass. Landscaping, lighting, exterior architectural treatments, and materials are also considered in determining the resulting character and its compatibility with surrounding development. Context and expectations are also considered. To demonstrate potential impacts from the SUMC Project, visual simulations of existing and representative post-construction (2025) views from five selected vantage points were prepared. Figure 3.3-7 of the Draft EIR provides a map of the vantage points. The SUMC Project would increase on-site massing by adding 1.3 million square feet of building floor area and raising maximum building height on the SUMC sites from five to seven stories, reconfigure on-site layout, alter on-site landscaping and lighting, and incorporate new building materials and treatments. Mitigation requires the SUMC Project sponsors to submit final building and site plans to the ARB prior to issuance of any development permits. Architectural Review shall assess the appropriateness of proposed demolitions, proposed building heights and massing, siting of buildings and structures, architecture and fa9ade treatments, landscaping, circulation plans, and parking. The ARB may require alterations to any of the above proj ect features, or the ARB may suggest new features, such as new landscaping or public art, to improve the proposed SUMC Project design. Any recommendations made by the ARB with respect to the design of the SUMC Project shall be implemented by the SUMC Project sponsors. At the P&TC and City Council meetings the applicant will be providing an overview of the SUMC Project design, including an animation to provide the Council, P&TC and community an understanding of each of the Project components, their respective building design intent and how the different components of the Project tie together. 2. Biological Resources Biological Resource impacts are addressed in Section 3.9 of the Draft EIR. Significance Thresholds Based on significance thresholds determined by the City of Palo Alto, the SUMC Project would result in a significant biological resource impact if it would: City of Palo Alto Page 3 • Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations; • Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, including federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means; • Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites; • Result in a substantial adverse effect to any "protected tree" as defined by the City of Palo Alto's Tree Preservation Ordinance (Municipal Code Section 8.10); or • Conflict with any applicable habitat conservation plan or natural community plan. Key Impacts and Mitigations The following impacts have been identified as significant (S); however these impacts can be eliminated through mitigation. The mitigation measures developed for each of the impacts are identified below. • BR-l: Impacts on special-status plant or wildlife resources (S). Mitigation Measures- o BR -1.1: Conduct a pre-demolition survey; o BR-1.2: Avoid roosting areas: o BR -1.3: Develop and employ bat nest box plan; o BR-1.4: Avoid tree removal during nesting season: o BR-1.5: Protect Cooper's hawk in the event of nest discovery. • BR-3: Use of native wildlife nursery sites (S). Mitigation Measures- o BR-3.l: Avoid tree removal during nesting season; o BR-3.2: Protect birds in the event of nest discovery. Significant and Unavoidable Impacts The following impacts have been identified as significant and unavoidable (SU) even after implementation of mitigation measures: • BR-4: Result in a substantial adverse effect on any protected tree (SU). • BR-9: Cumulative impacts on protected trees (SU). MitigatIOn Measures---------------- o BR -4.1: Prepare a tree preservation report for all trees to be retained; o BR-4.2: Prepare a solar access study of short and long term effects on protected oaks: o BR-4.3: Prepare a tree relocation feasibility plan for any protected tree proposed for City of Palo Alto Page 4 Discussion relocation and retention; o BR-4.4: Provide a tree preservation bond/security guarantee: o BR -4.5: Provide optimum tree replacement for loss of publicly-owned trees regulated tree category. o BR-4.5: Implement minor site modifications to preserve biologically and aesthetically significant protected trees. Approximately 1,562 trees have been identified in the SUMC sites. Coast live oaks and coast redwoods above a certain size are regulated under the City's Tree Protection and Management Regulations, which prohibit the removal of these trees, except under limited circumstances. There are 176 trees large enough to be designated as Protected Trees. 71 Protected trees appear to be within or sufficiently close to new building footprints or areas associated with the site reconfiguration. Therefore, removal of up to 71 Protected Trees out of a total of 176 Protected Trees may occur. Ofthe 71 Protected Trees, approximately 23 trees have been determined by the City to have both biological and aesthetic resource characteristics. A "Biological Tree Resource" is a protected category oak or redwood of a certain size as defined in the Palo Alto Municipal Code, Chapter 8.10, Tree Preservation and Management Regulations. An "Aesthetic Tree Resource" is a Protected Tree that is deemed important relative to the SUMC Project, as designated by the Department of Planning and Community Environment or the City Council, because it has one or more of the following qualities: functions as an important or prominent visual feature; contributes to a larger grove or landscape theme; and/or possesses unique character as defined in the designation of Heritage Trees (per Municipal Code Section 8.10.090). The City has determined that these 23 Protected Trees that are both biologically and aesthetically significant would require retention and preservation under the SUMC Project. The 23 Protected Trees include: nine Protected Trees in Kaplan Lawn (located between Pasteur Drive), 12 Protected Trees in the area ofthe proposed SoM FIM 1 building, one Protected Tree located between the site of the Blake-Wilbur Clinic building and Welch Road, and one Protected Tree east of the new LPCH hospital building, along Welch Road. The new "Hospital District" would create a procedure to permit the removal of the remaining approximately 48 Protected Trees while preserving the 23 Protected Trees that are considered both biologically and aesthetically significant. Site planning adjustments could be made to protect some of the 23 trees, but not all. Therefore, the impact is considered significant and unavoidable. Tree Preservation Alternative In an effort to retain as many Protected Trees as possible, the applicant has worked collaboratively with staff to develop the Tree Preservation Alternative. Section 5 of the Draft EIR describes fully the Project Alternatives. Although the Alternatives will be di~cus_sed ingreaterd~tail at the luly_IP&TC meeting and July 26 City Council meeting, it is important to briefly discuss the Tree Preservation Alternative in context with the Visual Quality and Biological Resources Chapters of the Draft EIR. A description ofthis Alternative can be found in the Draft EIR on pages 5-15 through 5-22 and Figure 5-1 provides a site plan for this Alternative. City of Palo Alto PageS The Tree Preservation Alternative preserves biologically and aesthetically significant oak trees located in the portion of the SUMC Project known as Kaplan Lawn, outside the proposed FIM 1 building near Pasteur Drive, and outside the new hospital building near Welch Road. The Tree Preservation Alternative maintains the same square footage and programmatic functions as the SUMC Project, but proposes design modifications to the new hospital building as well as FIM 1 to accomplish additional tree preservation. The key difference under the Tree Preservation Alternative is that the square footage and programmatic functions planned for the hospital module located within the Kaplan Lawn (Hospital Module Six) would be incorporated into the other hospital modules. The new design reduces the building footprint and allows all of the trees within the Kaplan Lawn to be retained. Other changes are proposed to FIM 1 to preserve additional trees. The Tree Preservation Alternative represents how the project design has changed from the original application and how it continues to evolve throughout the public review process. The applicant has identified this Alternative as their preferred alternative and has been working on further developing the design shown in this Alternative with their Boards of Directors and with the Office of Statewide Health Planning and Development (OSHPD). The refined SHC and FIM 1 building designs depicted in the Tree Preservation Alternative, are the designs being supported by Stanford, being reviewed by ARB and will be the designs presented for consideration after the EIR certification. The applicant will be providing an overview of the Project design at both the P&TC and City Council meetings to show how the project design continues to evolve based on information presented in the Draft EIR (such as the impacts on visual quality and biological resources). 3. Cultural Resources Cultural Resource impacts are addressed in Section 3.8 of the Draft EIR. This section of the EIR is based primarily on the report titled Cultural Resources and the Stanford University Medical Center Facilities Renewal and Replacement Project, prepared by Stanford University and a peer review of that report prepared by Architectural Resources Group, Inc. (ARG). Significance Thresholds Based on significance thresholds determined by the City of Palo Alto, the SUMC Project would result in a significant cultural resource impact if it would: • Cause a substantial adverse effect (as defined in CEQA Guidelines section 15064.5(b)) on an historical resource listed or eligible for listing on the National and/or California Register, or listed on the City's Historic Inventory; • Eliminate important examples of major periods of California history or prehistory; • Cause damage to an historic or unique archaeological resource as defined in Section 15064.5 of the CEQA Guidelines; ----.-Bisturb-Native Am~rican-human-remains, inc1udirrg those interred outside-of fannal cemeteries; • Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature; or City of Palo Alto Page 6 • Directly or indirectly destroy a local cultural resource that is recognized by City Council resolution. Key Impacts and Mitigations The following impacts have been identified as significant (S); however these impacts can be eliminated through mitigation. The mitigation measures developed for each of the impacts are identified below. • CR-2: Impacts on prehistpric or archaeological resources (S). • CR-6: Impacts on prehistoric and/or archaeological resources and human remains (S). Mitigation Measure- o CR -2.1: Construction staff training and consultation. • CR-3: Impacts on human remains (S). Mitigation Measure- o CR -3.1: Conduct protocol and procedures for encountering human remains. • CR-4: Impacts on Paleontological resources (S). Mitigation Measure- o CR-4.1: Conduct protocol and procedures for encountering paleontological resources. • CR-6: Cumulative impacts on prehistoric and/or archaeological resources and human remains (S). Mitigation Measures- o CR-2.1: Construction staff training and consultation; o CR-3.l: Conduct protocol and procedures for encountering human remains. • CR-7: Cumulative impacts on Paleontological resources (S). Mitigation Measure- o CR-4.1: Conduct protocol and procedures for encountering paleontological resources. Significant and Unavoidable Impacts The following impacts have been identified as significant and unavoidable (SU) even after implementation of mitigation measures: • CR -1: Impacts on historical resources (SU). • CR-5: Cumulative impacts on historical resources (SU). Mitigation Measures- o CR-1.1: Manually demolish structures at the Hoover Pavilion site; o CR-1.2: Prepare HABS documentation for the Stone Building complex; ~ ____ 0 CR -1.3~ Distripute written an<iphotographic docllmentation to agencies; o CR-1.4: Prepare permanent interpretive displays/signage/plaques; o CR -1.5: Implement protection documents for the Hoover Pavilion. Discussion City of Palo Alto Page 7 Seven potential historic resources within the SUMC Sites were evaluated: Governor's Avenue, Hoover Pavilion, Nurse's Cottage at Hoover Pavilion, 701 Welch Road, 703 Welch Road, 1101 Welch Road, and the Stone Building complex (including the East, West, Core, Boswell, Grant, Alway, Lane, and Edwards buildings). The Hoover Pavilion exemplifies the distinctive characteristics of a pre-World War II hospital and appears to maintain sufficient integrity for listing on the California Register of Historic Resources (CRHR). The Hoover Pavilion is considered to be an historical resource for purposes of the City's CEQA analysis. The Draft ErR concludes that no significant interior spaces remain intact from the period of significance, exterior modifications would retain significant character defining features and eliminate non-historic elements, and the proposed medical office building and parking structure retain significant views and would not result in an adverse, material alternation of significant characteristics and would result in a less-than-significant impact. Mitigation measures are included to protect the Hoover Pavilion during construction. the Stone Building complex was designed by Edward Durell Stone and the landscaping was designed by Thomas Church. Additionally, the complex is associated with the first heart transplant in the U.S. Although there have been some alterations to the complex's courtyards and the surrounding setting; the complex as a whole is largely intact and conveys the original design intent. In addition, the main entry facades and several architectural elements retain a high degree of integrity and convey an expression of Stone's work during an important phase of his career. Additionally, enough time has passed to understand the significance of the heart transplant that occurred at the hospital, and that the building retains sufficient integrity for association with that time period. Therefore, the Draft EIR concludes that the Stone Building complex appears eligible for listing on the CRHR and therefore is an historical resource pursuant to CEQA. The demolition of the Stone Building complex would result in a significant impact on an historical resource. Mitigation measures CR -1.2 through CR-1.4 would reduce impacts due to the loss ofthe Stone Building complex; however, the impact would remain significant and unavoidable. In combination with the SUMC Project, cumulative development would have cumulatively significant impacts on historic resources in the City because these would together result in loss of at least one historically significant structure. Only one other E.D. Stone building in Palo Alto, the Palo Alto Main Library retains sufficient integrity to be eligible for listing. The demolition ofthe Stone Building complex would comprise a considerable loss of an historical resource that is a unique and non-renewable member of a finite class. The demolition ofthe Stone Building complex would have a cumulatively considerable impact due to the small body ofE.D. Stone's work present in the City that retains sufficient integrity to be eligible as historicaL resources. Due to the demolition of the Stone Building complex, the SUMC Project's contribution would n -remam cumulativelycon.siderable, as this impact cannot be avoided. Implementation of Mitigation Measures CR -1.2 through CR -1.4 would reduce the SUMC Project's contribution to the cumulative impact, but not to a less than cumulatively considerable level. City of Palo Alto Page 8 NEXT STEPS The P&TC will conduct a meeting on June 16 to review the Transportation Chapter and a meeting on June 23 to review Climate Change and Air Quality. The City Council will review these three topics on July 12. Subsequent to public testimony and P&TC and Council comments, along with the written comments submitted on the Draft EIR during the 69-day public review period, the EIR consultant and staff will prepare a Final EIRlResponse to Comments. The timing of this document is dependent on the number of comments received. However, the goal is to complete review of this Project and the EIR by the end of2010. Following preparation of the Final EIRIResponse to Comments document, the P&TC will conduct a public hearing(s) on the Final EIR and provide a recommendation to the City Council. The City Council will then review the Final EIRlResponse to Comments for action. PREPARED BY: ~~~ STEVEN tURNER Advance Planning Manager DEPARTMENT HEAD: CURTIS WILLIAMS Director of Planning and Community Environment CITY MANAGER APPROVAL: ~ gA~ City Manager ATTACHMENTS Attachment A: Summary of Impacts and Mitigation Measures Attachment B: June 9, 2010 P&TC Meeting Minutes (available after the June 9, 2010 meeting) City of Palo Alto Page 9 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts Adopted Land Use Plans and Policies. Without IIDtlgation ~easures to ensure consistency with the Comprehensive Plan's policies adopted for the purpose of avoiding or mitigatin1 an environmental effect, the SUMC Project could conflict I with Comprehensive Plan policies that avoid or reduce impacts related to visual quality, cultural resources, pedestrianl circulation, urban forest resources, groundwater and runOff pollution, air quality degradation, and noise incompatibility. LU-2. Conflicts witf Established Residential, Recreational, Educational, Religious, or Scientific Uses in the Area. The SUMC Project w9uld not conflict with residential, recreational, educational, religious or scientific uses. I LU-3. SUMC Physical Division of an Established Community. The Project would not physically divide an established community. I Impact Significance Without Mitigation NI NI NJ = No Impact LTS = Less-than-Significant Mitigation Measures MITIGATION MEASURES. The mitigation measures identified below would ensure that the SUMC Project would have no conflicts with Comprehensive . Plan policies adopted for the purposes of avoiding or mitigating environmental impacts. These measures include Mitigation Measure VQ-2.1, which requires compliance with the City's Architectural Review process and recommendations; CR-1.2 through 1.4, which involves measures to minimize the loss of the historic Edward Durell Stone Building complex; CR-l.l and CR-1.5, which involve measures to minimize vibration impacts on the Hoover Pavilion; TR-6.1, which requires improvements for bicycle and pedestrian safety and access at intersections affected by SUMC Project traffic; BR-4.1 through BR-4.5, which require the preparation of a Tree Preservation Report, a solar access study, a Tree Relocation Feasibility Plan, a Tree Preservation Bond/Security Guarantee, and minor site modifications to the current site plans; HW-3.1, which requires a work plan to protect groundwater from contamination; AQ-l.l through AQ-1.2, which would control construction dust and reduce diesel emissions; NO-4.1, which requires noise shielding or enclosure of equipment; and NO-I.I, which controls construction noise None required. None required. S = Significant SU= Significant Unavoidable StGJ~ford University Medical Center Facilities Rene·wal and Replacement Draft EIR -Summary Impact Significance With Mitigation N/A N/A S-25 ~ ~ ~ ~ (' = ~ ~ ~ >-.tt. ~ .~ Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts LU-4. Farmland C6nversion. The SUMC Project would have no impact on cohversion of farmland to non-agricultural uses. I LU-5. Adverse Charlges to Overall Existing or Planned Land Uses in the Area. Be~ause the SUMC Project would intensify I the planned uses within the SUMC Sites, the SUMC Project would have a signifidnt impact pertaining to on-site character and views. I I I LU-6. Cumulative lpacts on Changes to Overall Existing or Planned Land Use~ in the Area. The SUMC Project. in combination with othet reasonably foreseeable probable future development in the a~ea, would have a less-than-significant cumulative impact on loveran existing or planned land uses in the vicinity of the SUMC Sites. of Visual Character During Construction. The SU;MC Project would substantially degrade the existing visual character and quality of the SUMC Sites during construction. (S) Impact Significance Without Mitigation NI S LTS NI = No Impact LTS = Less-than-Significant S-26 Mitigation Measures None required. MITIGATION MEASURE. Mitigation Measure VQ-2.1, requires and ensures compliance with Arclritectural Review Board (ARB) recommendations for final design and would reduce impacts from increased intensity under the SUMC Project. Based on the SUMC Project design guidelines, the Arclritectural Review would consider. among other factors, whether the SUMC Project has a coherent composition and whether its bulk and mass are harmonious with surrounding development. Thus, implementation of Mitigation Measure VQ-2.1 would reduce the significant impacts on overall surroundings to a less-than-significant level. None required. MITIGATION MEASURE. Mitigation Measure VQ-l.l, below, would reduce visual impacts during construction to less than significant. (L TS) VQ-l.l Implement Construction Visual Improvements Plan. TheSUMC Project sponsors shall develop and implement a Construction Visual Improvements Plan that would make visual improvements to construction zones within a given construction phase and between phases if the zone is not scheduled for construction S=Significant SU= Significant Unavoidable Impact Significance With Mitigation N/A LTS N/A Stan/ord University Medical Center Facilities Renewal and Replacement Draft EIR -SummQlY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures i ! Impacts Impact Significance Without Mitigation VQ-2. Permanent :qegradation of Visual Character Post S Construction. The SVMC Project would have a significant impact pertaining to, degradation of the existing visual _act" 0' qu"'ity of r slIMe Si", md tb,", ,urroun,""g,. I NI = No Impact DTS = Less-than-Significant Mitigation Measures activity or would remain unused for a period greater than six months. Construction zones subject to this mitigation measure shall be defined by the Planning Director, and shall consider the size of the area, the nature and timing of the construction activity, and the proximity or visibility of the area to public vantage points or residential uses. The Construction Visual Improvements Plan shall be implemented by the project contractor(s) and must be approved by the Planning Director. The intent of the plan is to aesthetically improve portions of the project site that would remain unimproved for an extended period and screen the construction zone from view by passersby along the public streets and sidewalks. Possible improvements in the plan include, but are not limited to, the following: a. The SUMC Project sponsors shall conceal staging areas with fencing material to be approved by the Planning Director prior to commencement of use of the staging area for construction equipment and vehicles. b. The SUMC Project sponsors shan frequently remove construction debris and refuse from the SUMC Sites. c. The SUMC Project sponsors shall install all landscaping as early as feasible to decrease visual impacts of construction. Existing landscaping within the SUMC Sites that would not be removed by the construction shall be maintained. MITIGATION MEASURE. Mitigation Measure VQ-2.1, below, requires and ensures compliance with ARB recommendations for final design. Such compliance would ensure that impacts on on-site visual character and quality would be less than significant because the ARB's recommendations, through the Architectural Review process, would address massing, layout, landscaping, and architectural design impacts from the SUMC Project, as described further below. S = Significant SU= Significant Unavoidable Stanford Univel'sity Medical Center Facilities Renru'al and Replacement Draft EIR -Summary Impact Significance Witb Mitigation S-27 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts VQ-3. Alteration of IpUblic Viewsheds, View Corridors, or Scenic Resources. llfhe SUMC Project would result in significant impacts on iews. , , Impact Significance Without Mitigation S I NI = No Impact I LTS = Less-than-Significant S-28 Mitigation Measures VQ-2.1 Adhere to City's Architectural Review Process and Recommendations. The SUMC Project sponsors shall submit final building and site plans to the ARB prior to issuance of any development permits. Architectural Review shall assess the appropriateness of proposed demolitions, proposed building heights and massing, siting of buildings and structures, architecture and facade treatments, landscaping, circulation plans, and parking. The ARB may require alterations to any of the above project features, or the ARB may suggest new features, such as new landscaping or public art, to improve the proposed SUMC Project design. Any recommendations made by the ARB with respect to the design of the SUMC Project shall be implemented by the SUMC Project sponsors. . MlTIGATION MEASURE. Mitigation Measure VQ-2.1, above, requires and ensures compliance with ARB recommendations for final design and would reduce impacts on views from the proposed buildings under the SUMC Project. The Architectural Review of the SUMC Project would consider, among other factors, whether the SUMC Project has a coherent composition and that its bulk and mass are harmonious with surrounding development. The ARB's recommendations regarding these factors will be forwarded to the City Council for consideration. The City Council would then review the recommendations and make findings, as appropriate, that natural features are appropriately preserved and integrated with the SUMC Project; the design promotes hannonious transitions in scale and character in areas between different designated land uses; and the planning and siting of the various functions and buildings on the site create an internal sense of order and provide a desirable environment for occupants, visitors, and the general community. Implementation of Mitigation Measure VQ-2.1 regarding the Architectural Review process would ensure that impacts on views would be less than significant. S=Significant SU= Significant Unavoidable Impact Significance With Mitigation LTS Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts I VQ-4. Terrain Modifications. The SUMC Project would not require substantial terrkin modifications that would degrade the visual character of the 8UMC Sites. VQ-5. New Sources 10f Light and Glare. The SUMC Project could increase light add glare nuisance from exterior lighting, resulting in a significaqt impact. Impact Significance Without Mitigation NI S VQ-6. Shadowing of Public Open Space. The SUMC LTS Project would not sJbstantially shadow public open space (other than public stre9ts and adjacent sidewalks) between 9:00 a.Ill. and 3:00 p.m. fropI September 21 to March 2l. I VQ-7. Cumulative Impacts on Visual Character. The SUMC L TS Project, in combinatipn with other reasonably foreseeable probable future devel9pment in the area, would have a less­ than-significant cumulative impact on visual character in the vicinity of the SUMC Sites. I I NI = No Impact LTS = Less-than-Signijicant I • Mitigation Measures None required. MITIGATION MEASURE. Mitigation Measure VQ-2.1, above, requires compliance with ARB recommendations for final design and would reduce light and glare impacts from the proposed buildings under the SUMC Project. The Architectural Review of the SUMC Project would consider, among other factors, whether the SUMC Project incorporates quality materials, harmonious colors, appropriate ancillary features, a cohesive design with a coherent composition, and an appropriate lighting plan. The ARB's recommendations regarding these factors will be forwarded to the City Council for consideration. The City Council would then review the recommendations and make findings, as appropriate, that the design is compatible with the inunediate environment of the SUMC Sites; is appropriate to the function of the SUMC Project; promotes harmonious transitions in character in areas between different designated land uses; and is compatible with approved improvements both on and off the site. This Architectural Review process would ensure that exterior treatment would not emit substantial glare and that exterior lighting impacts would be less than significant. None required. None required. S = Signijicant SU= Significant Unavoidable StG1;ford Unive/;sity Medical Center Facilities Renewal and Replacement Draft ElR -Summary Impact Significance With Mitigation N/A LTS N/A N/A S-29 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts VQ-8. Cumulative Impacts OIl Sellsitive Views. The SUMC Project, in combinat¥Il with other reasonably foreseeable future development pthe area, would have less-than­ significant cumulative imoacts on sensitive views. VQ-9. Cumulative qght and Glare. The SUMC Project, in reasonably foreseeable probable future would be subject to Architectural Review and Municipal Code, and County requirements pertaining to light and I glare. Impacts would therefore be less than significant. VQ-lO. Cumulative Shadows. Shadows from the SUMC Project are not expect6d to combine With shadows from other nearby reasonably fo+seeable probable future development. There would be no cumulati Construction ~mpacts. Construction activity associated with the SUMC Project could result in significant traffic impacts. Impact Significance Without Mitigation LTS LTS NI I NI = No Impact LTS = Less-than-Significant S-30 Mitigation Measures None required. None required. None required. MlTIGATION MEASURES. With implementation of the following mitigation measures, the significant construction related traffic impacts would be reduced to less-than-significant levels. TR-l.l Provide Off-Street Parking for Construction Related Vehicles. The SUMC Project sponsors shall be required to provide adequate off-street parking for all construction-related vehicles throughout the construction period. If adequate parking cannot be provided on the construction sites, a remote parking area shall be designated, and a shuttle bus shall be operated to transfer construction workers to the job site. S=Significant SU= Significant Unavoidable hnpact Significance With Mitigation N/A N/A N/A Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impacts I NI = No Impact " Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures TR-l.2 Maintain Pedestrian Access. The SUMC Project. sponsors shall be prohibited from substantially limiting pedestrian access while constructing the SUMC Project, without prior approval from the City of Palo Alto Department of Public Works. Such approval shall require submittal and approval of specific construction management plans to mitigate the specific impacts to a less-than­ significant levels. Pedestrian access-limiting actions would include, but not be limited to, sidewalk closures, bridge closures, crosswalk closures or pedestrian re-routing at intersections, placement of construction-related material within pedestrian pathways or sidewalks, and other actions which may affect the mobility or safety of pedestrians during the construction period. U sidewalks are maintained along the construction site frontage, covered walkways shall be provided. TR-l.3 Maintain Bicycle Access. The SUMC Project sponsors shall be prohibited from limiting bicycle access while constructing the SUMC Project without prior approval from the City of Palo Alto Department of Public Works. Such approval shall require submittal and approval of specific construction management plans that warn cyclists prior to reaching the impacted bicycle lanes and provide altemative routing around the construction sites to mitigate the specific impacts to a less-than-significant level. Bicycle access-limiting actions would include, but not be limited to, bicycle lane closures or narrowing, closing or narrowing of streets that are designated bicycle routes. bridge closures, the placement of construction-related materials within designated bicycle lanes or along bicycle routes. and other actions which may affect the mobility or safety of bicyclists during the construction period. S=Significant SU= Significant Unavoidable Stallford Univelisity Medical Center Facilities Rene'wal and Replacement Draft EIR -Summary Impact Significance With Mitigation S-31 Impacts NI = No Impact S-32 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures TR-I.4 Restrict Construction Hours. The SUMC Project sponsors shall be required to prohibit or limit the number of construction material deliveries from 7:00 a.m. to 9:00 a.m., and from 4pm to 6pm on weekdays. The SUMC Project sponsors shall be required to prohibit or limit the number of construction employees from arriving or departing the site from the hours of 4:30 p.m. to 6:00 p.m. TR-l.5 Restrict Construction Truck Routes. The SUMC Project sponsors shall be required to deliver and remove all construction­ related equipment and materials on truck routes designated by the cities of Palo Alto, East Palo Alto and Menlo Park. Heavy construction vehicles shall be prohibited from accessing the site from other routes. Figure 3.4-6 and 3.4-7 of the EIR illustrates the Stanford Area Truck Routes which must be used by all trucks. TR-l.6 Protect Public Roadways During Construction. The SUMC Project sponsors shall be required to repair any structural damage to public roadways, returning any. damaged sections to original structural condition. The SUMC Project sponsors shall survey the condition of the public roadways along truck routes providing access to the proposed project site before construction, and shall again survey after construction is complete. A before-and-after survey report shall be completed and submitted to the City of Palo Alto Public Works Department for review, indicating the location and extent of any damage. TR-I.7 Maintain Public Transit Access and Routes. The SUMC Project sponsors shall be prohibited from limiting access to public transit, and from limiting movement of public transit vehicles, without prior approval from the Santa Clara County Valley S = Significant SU= Significant Unavoidable Impact Significance With Mitigation StOliford University Medical Center Facilities Renewal and Replacement Draft ElR -SummalY Impacts I NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Sign(ficant Mitigation Measures Transportation Authority or other appropriate jurisdiction. Such approval shall require submittal and approval of specific impacts to a less-than-significant level. Potential actions which would impact access to transit include, but are not limited to, relocating or removing bus stops, limiting access to bus stops or transfer facilities, or otherwise restricting or constraining public transit operations. TR-l.8 Prepare and Implement Construction Impact Mitigation Plan. In lieu of the above mitigation measures, the SUMC Project sponsors shall submit a detailed construction impact mitigation plan to the City of Palo Alto for approval by the Director of Public Works prior to commencing any construction activities with potential transportation impacts. This plan shall address in detrul the activities to be carried out in each construction phase, the potential transportation impacts of each activity, . and an acceptable method of reducing or eliminating significant transportation impacts. Details such as the routing and scheduling of materials deliveties, construction employee arrival and departure schedules, employee parking locations, and emergency vehicle access shall be described and approved. TR-l.9 Conduct Additional Measures During Special Events. The SUMC Project sponsors shall implement a mechanism to prevent roadway construction activities from reducing roadway capacity during major athletic events or other special events which attract a substantial number of visitors to the campus. This measure may require a special supplemental permit to be approved by either Santa Clara County or the City of Palo Alto prior to hosting such events during significant construction phases. S = Significant SU= Significant Unavoidable Stanford Unive/isity Medical Center Facilities Renewal and Replacement Draft EIR -Summary hnpact Significance With Mitigation S-33 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts TR-2. Intersection rfvel of Service. Implementation of tbe SUMC Project woulld result in significant impacts to " intersections during Pehlc Hour conditions. Impact Significance Without Mitigation S I NI = No Impact I LTS = Less-than-Significant I S-34 Mitigation Measures MITIGATION MEASURES. Given the magnitude of the SUMC Project's infersection impacts, there is no single feasible mitigation measure that can reduce the impacts to a less-than-significant level. However, there are a range of measures that, when taken individually, would each contribute to a partial reduction in tbe SUMC Project's impacts. When combined, these measures could result in a substantial reduction in the SUMC Project's impacts. Under all combinations of feasible mitigation measures below, impacts of the SUMC Project on intersection LOS would remain significant and unavoidable. Of all of the feasible combinations, the one that would have the largest reduction in impact, and that mitigates the greatest number of the intersection impacts, is the combination of traffic adaptive signal technology, additional bicycle and pedestrian undercrossings, enhanced Travel Demand Management (TDM) program, and feasible intersection improvements. This combination of mitigation measures would reduce the SUMC Project impacts to a less-than-significant level at all of the impacted intersections during the AM Peak: Hour. However, intersection impacts would remain significant and unavoidable in the PM Peak Hour at tbree intersections with mitigation. TR-2.1 Install Traffic Adaptive Signal Technology. The SUMC Project sponsors shall contribute to the Palo Alto Citywide Traffic Impact Fee program, for the installation of traffic adaptive signals. However, this fee is not structured to mitigate one hundred percent of project related impacts, and an additional fee could be imposed by the City on the SUMC Project sponsors to mitigate the remaining share of the SUMC Project impacts. In Menlo Park, the SUMC Project sponsors shall contribute their fair share amount, which shall be tied to the amount of traffic added to analyzed intersections by tbe SUMC Project. TIle SUMC Project sponsors' contributions shall apply towards the S = Significant SU= Significant Unavoidable bnpact Significance With Mitigation SU Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummaJY Impacts I NI = No Impact I Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures installation of traffic adaptive signals as listed below. • Sand Hill Road (Oak Creek to Shopping Center) -4 signals • Arboretum Road (Shopping Center to Palm Drive) -3 signals • Embarcadero Road (Bryant to Saint Francis) -7 signals • University Avenue (Palm to Lincoln) -13 signals • Lytton Avenue (Alma to Middlefield) -10 signals • Hamilton A venue (Alma to Middlefield) -10 signals • Middlefield Road (San Antonio to Homer) -9 signals • Charleston Road (Alma to Middlefield) -2 signals • EI Camino Real (northern city limits of Menlo Park to southern city limits of Palo Alto) -signals would require approval of Caltrans TR-2.2 Fund Additional Bicycle and Pedestrian Undercrossings. The SUMC Project sponsors shall contribute their fair share to the cost of construction of the Everett Avenue undercrossing of the Caltrain tracks in Palo Alto and the Middle A venue undercrossing in Menlo Park. In Palo Alto, there is a Citywide Traffic Impact Fee program that the SUMC Project sponsors shall contribute to. However, this fee is not structured to mitigate one hundred percent of the SUMC Project related impacts, and an additional fee may be imposed by the City to mitigate the remaining share of the SUMC Project impacts. In Menlo Park, the fair share contribution shall be tied to the amount of traffic added to analyzed intersections by the SUMC S=Significant SU= Significant Unavoidable Stanford Unive/isity Medical Center Facilities ReneYVal and Replacement Draft EIR -Summary Impact Significance With Mitigation S-35 Impacts I NI = No Impact , S-36 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures Project. The construction of the Everett Avenue and Middle Avenue undercrossings would reduce traffic volumes on nearby streets, such as Ravenswood Avenue and University Avenue. TR-2.3 Enhance Stanford University Travel Demand Management (IDM) Program. The SUMC Project sponsors shall enhance the currently-implemented TDM program in order to achieve 35.1 percent usage of alternative transportation modes (i.e, carpool, vanpool, bus, Caltrain, bicycle, and walk) by SUMC employees. The initial enhancements to the SUMC TDM program shall include the following: • Provide Caltrain GO Passes, or an equivalent TDM measure, to all eligible hospital employees and set target Caltrain mode share for hospital employees equal to 15.8 percent. • If Caltrain GO Passes would be provided to SUMC employees, make arrangements with AC Transit to lease 75 spaces at the Ardenwood Park & Ride Lot, to serve SUMC employees who commute from the East Bay. • Expand bus service in support of the issuance of GO Passes. • Expand the Marguerite shuttle bus service, and integrate it ""ith the other City of Palo Alto shuttle bus service. • Maintain load factors less than 1.00 on the U Line, and less than 1.25 on the Marguerite shuttle. • Expand and improve the bicycle and pedestrian networks. • Provide a full-time on-site TDM coordinator by 2015 for the hospital components. The coordinator would be responsible for organizing and disseminating TDM information primarily S=Significant SU= Significant Ullavoidable hnpact Significance With Mitigation Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummGlY Impacts I NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signijicant Mitigation Measures to hospital employees and also to hospital patients. A central location would be made available to provide information on alternative travel modes. Also, the SUMC or hospitals' website would contain information on TDM programs. • Provide a guaranteed ride home program for all employees who use transit and other transport alternatives like carpool and vanpool. The guarantee ride home shall allow employees with dependent children the ability to use alternative modes to travel to and from work but still be able to travel home mid-day in case of an emergency. • Provide employees with shower facilities within the SUMC Sites to encourage bicycling to work. The SUMC Project sponsors shall also provide bicycle storage facilities on the SUMC Sites that would be conveniently located near the employee showers. • Establish, in conjunction with the GO Pass implementation, a "Zip Car" (or other similar car-sharing program) with Zip Cars available at the medical complex. • Perform annual TDM monitoring and submit the report to the City of Palo Alto to ensure that the assumed modal split to alternative forms of travel and away from autos is actually achieved. These enhancements may not immediately change the mode split for SUMC employees, because many employees would be unable to change long standing commute patterns overnight. However, with the passage of a mutually agreed amount of time, it is expected that the enhanced TDM program would gradually result in a shift in the mode split of SUMC employees. If this proves S=Signijicant SU= Significant Unavoidable Stal!tord University Medical Center Facilities Renewal and Replacement Draft EIR -Summary I Impact Significance With Mitigation S-37 Impacts I , NI = No Impact S-38 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation Mitigation Measures LTS = Less-than-Significam not to be the case, then a second round of improvements to the TDM program shall be implemented. Examples of additional measures could be to increase the parking permit charges while increasing the incentives to those who carpool or do not drive. If, by the year 2025, at least 35.1 percent of SUMC employees are not using alternative transportation modes, then a second round of improvements to the TDM shall be implemented. Examples of additional measures could be to increase the parking permit charges while increasing the incentives to those who carpool or do not drive. Thereafter, SUMC Project sponsors shall monitor/survey employee use of alternative modes of transportation on an at least bi-annual basis, and shall continue to improve its TDM program, until it is confirmed to the satisfaction of the City that the target of 35.1 percent usage has been met. TR-2.4 Fund or Implement those Intersection Improvements that Have Been Detennined to be Feasible. The SUMC Project sponsors shall implement the following measures: • For the intersection of El Camino Real/Page Mill Road - Oregon Expressway, the SUMC Project sponsors shall pay a fair share towards (1) provision of exclusive right-tum lane for westbound Oregon Expressway, in addition to the two through lanes, (2) increasing the cycle length to 160 seconds. Improvements to the westbound right tum lane would require right-of-way from the Santa Clara Valley Transportation Authority (VTA) park-and-ride lot. • At the intersection of Arboretum Road/Galvez Street, the SUMC Project sponsors shall install a traffic signal. S=Significam SU= Significant Unavoidable Impact Significance With Mitigation Stal'iford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impacts NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures TR-2.5 Coordinate 'with Other Jurisdictions for Potentially Feasible Roadway Improvements. The City of Palo Alto shall work with other jurisdictions to try to achieve feasibility for the following roadway improvements or adjustments. In the event that one or more of the below improvements would then be determined to be feasible, the SUMC Project sponsors shall pay their fair share towards implementation of the improvements, if a fair share contribution would apply. • • • • Alpine Road/I-280 Northbound Off-Ramp -Signalize this intersection. The City shall coordinate with Caltrans regarding feasibility of these improvements. EI Camino Real/Ravenswood Avenue -Re-stripe the exclusive right-turn lane on southbound El Camino Real to a shared through/right lane. Also, provide an additional through lane for northbound EI Camino Real by removing the right-turn slip island. Also, provide an exclusive right­ turn lane for eastbound Menlo Avenue. The City shall coordinate with the City of Menlo Park and Caltrans regarding feasibility of these improvements. Bayfront Expressway/Willow Road -Provide one more right-turn lane for eastbound Willow Road and make the right-turn movement for southbound Bayfront Expressway "overlap" with the left-turn of eastbound Willow Road. The intersection has signals for the right-turn movement for southbound' Bayfront Expressway, but the "overlap" phase is not implemented. The City shall coordinate with the City of Menlo Park regarding feasibility of these improvements. Middlefield Road/Ravenswood Avenue -Provide an additional exclusive left-turn lane for northbound Middlefield S=Significant SU= Sign!ficant Unavoidable Stanford Univei'sity Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impact Significance With Mitigation S-39 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts I TR-3. Imp,",ts on Jadway Segments. The SUMC Pmje<:t would result in advers~ traffic impacts to roadway segments in the City of Menlo Par~. TR-4. Local Circulation Impacts. The SUMC Project could result in significant ~raffic impact to the local circulation network in the immediate vicinity of the SUMC Sites. Impact Significance Without Mitigation S S i NI = No Impact LTS = Less-than-Significant S-40 Mitigation Measures Road. The City shall coordinate with the City of Menlo Park regarding feasibility of this improvement. • Junipero Serra Boulevard/Campus Drive West -Request that Santa Clara County change the signal cycle length at this intersection to 90 seconds. The City shall coordinate with the County of Santa Clara regarding feasibility of this adjustment. MITIGATION MEASURES. With the provision of additional bicycle and pedestrian undercrossings (Mitigation Measure TR-2.2), the enhanced TDM program (Mitigation Measure TR-2.3), and contribution to the City of Menlo Park shuttle fee (Mitigation Measure TR-7.2), there would still be significant impacts on four Menlo Park roadways, including Marsh Road, Willow Road, Sand Hill Road, and Alpine Road. Therefore, the traffic impacts to Marsh Road, Sand Hill Road, Willow Road, and Alpine Road would remain significant and unavoidable with mitigation. MlTIGATION MEASURES. Mitigation Measure TR-4.1, involving funding and implementation of a traffic impact study, and Mitigation Measure TR-4.2, involving re-striping of Durand Way, would reduce the SUMC Project's impact to a less-than-significant level. TR-4.1 Fund Traffic Impact Study. Upon construction of the SHC and LPCH Hospital components. the SUMC Project sponsors shall fund an independent traffic evaluation, commissioned by the City, based on actual travel patterns, volumes, and emergency access, with an emphasis on ease of circulation around and through the medical complex to determine if the private street connection between Roth Way and Pasteur Drive should be operated as a public street. If the independent traffic study demonstrates that the connection between Roth Way and Pasteur Drive as a public street would improve circulation, then the S=Significant SU= Significant Unavoidable hnpact Significance With Mitigation SU LTS Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures I I Impacts TIt-5. P",eway Imp~". The SUMC Pmject would =uIt in less-than-significant impacts on freeways. TR-6. Bicycle and pkdestrian Impacts. The SUMC Project could impede the deve~opment or function of planned bicycle or pedestrian facilities. : and result in a significant impact. Impact Significance Without Mitigation LTS S NI = No Impact LTS = Less-than-Sign~ficant Mitigation Measures connection sball be designated as a public street for all vehicular, bicycle, pedestrian, and transit traffic. TR-4.2 Fund Signing and Striping Plan and Signal Optimization. In addition to paying for the construction of the extension of Durand Way from Sand Hill Road to Welch Road, the SUMC Project sponsors shalJ also pay for the following improvements to ensure that queues from the Durand Way/Sand Hill Road intersection do not spillback onto the Durand Way/Welch Road intersection. • A signing and striping plan for the Durand Way extension, which would maximize the storage capacity by creating a four-lane roadway with a left and througb/right at Sand Hill Road and a right and through/left at Welch Road; • The installation and optimization of the two signals at the intersections of Durand Way/Sand Hill Road and Durand Way /W elch Road. None required. MITIGATION MEASURES. Mitigation Measure TR-2.3 involving trip­ reducing measures, plus Mitigation Measure TR-6.1, which involves several bicycle and pedestrian improvements, would reduce the SUMC Project's impact to a less-than-significant level. The improved facilities would mitigate the hazards to pedestrians and bicyclists brought about by the increased vehicular traffic and congestion .. TR-6.1 Bicycle and Pedestrian Infrastructure Improvements. The SUMC Project sponsors shall fund the expansion and improvement of the bicycle and pedestrian network in the immediate vicinity of the SUMC Project. The intent of these improvements is to: S = Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renel','al and Replacement Draft ElR -SumlllalY Impact Significance With Mitigation N/A LTS S-41 S-42 Impacts I NI = No Impact I Table S-4 SUMC Project. Summary of Impacts and Mitigation· Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures • reduce auto related traffic by providing the infrastructure for alternative travel modes; • improve the bicycle and pedestrian linkages between the SUMC Project and Downtown Palo Alto, and between the SUMC Project and the surrounding residential neighborhoods; and • mitigate the safety hazards to pedestdans and cyclists that will result from the SUMC Project related increase in vehicular traffic and congestion. The specific improvements to be funded by the SUMC Project sponsors shall include the following: • Provide an enhanced pedestrian crossing at Quarry Road/E1 Camino Real to establish a strong connection between the SUMC Project and Downtown Palo Alto. The pedestrian crossing shall be 12 feet wide, have contrasting pavement, countdown signal heads, and high visibility markings. Even though the intersection of Quarry Road and El Camino Real is projected to operate at acceptable levels of service, added vehicular traffic through the intersection and added bicycle and pedestrian volumes across the intersection would potentially create safety hazards which would be mitigated by the proposed enhanced crossings. • Create a bicycle and pedestrian connection between the Stanford Shopping Center and SUMC. The connection shall provide an alternative route to Quarry Road, which is auto dominated. This connection shall extend between Vineyard Lane and Welch Road. Pedestrian traffic signals and crosswalks shall be placed at the crossing of Vineyard Lane S=Significant SU= Significant Unavoidable hnpact Significance With Mitigation Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummaJY Impacts I I NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures and Welch Road. The crosswalk shall be enhanced either by striping or by the use of contrasting paving. • Provide a connection from the planned Everett A venue bicycle and pedestrian undercrossing to the El Camino Real/Quarry Road intersection. Once the tunnel is completed, this linkage shall provide a direct connection between the SUMC Project and Downtown North. • Provide a bicycle and pedestrian trail through the Arboretum Drive as part of future campus planning in the SUMC area. This trail shall improve access to the SUMC Project. To support this off-street path, bicycle and pedestrian crossings at Arboretum Road and Palo Road shall be enhanced to provide safe crossing of these streets. The crosswalks shall be properly signed, marked, and lighted with enhanced pavement markings and imbedded crosswalk lights. Signalization of this crossing may ultimately be required. • Incorporate into the Quarry Road corridor, from El Camino Real to Welch Road, continuous sidewalks according to the SUMC Project's Design Guidelines. The extension of Quarry Road west of Welch Road shall continue the pedestrian facilities into the SUMC Project. • Enhance all signalized intersections in the Project Vicinty, particularly along Quarry Road, Vineyard, and Welch Roads to include 12-foot pedestrian crosswalks on all legs, with textured or colored paving or diagonal or longitudinal zebra striping as determined by the City, pedesnian push buttons and countdown pedestrian signal heads, and other specific improvements that are determined as necessary during the design process, such as median refuge islands, advanced signing, flashing beacons, in­ pavement lighting, etc. S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and. Replacement Draft ElR -SummalY Impact Significance With Mitigation S-43 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts TR-7. Transit Impaers. Implementation of the SUMC Project could impede the operation of the transit system as a result of increased ridetship, and result in a significant impact. Impact SignIficance Without Mitigation S NI = No lntpact LTS = Less-than-Significant S-44 Mitigation Measures • Install the appropriate number of Class I and Class III bicycle parking spaces as required by the City's Zoning Ordinance for the total amount of existing and future development. The SUMC Project sponsors shall install the required number of bicycle parking spaces equally distributed throughout the SUMC Sites. MITIGATION MEASURES. Mitigation Measure TR-7.1 involves the addition of transit centers to the SUMC Project's site plans, and Mitigation Measure TR-7.2 involves fmancial contributions towards the expansion of transit service. Implementation of these measures would reduce the SUMC Project's transit impacts to a less-than-significant level. TR-7.1 IncOIporate Transit Centers Into Site Plans. The SUMC Project sponsors shall revise their SUMC Project site plan to incorporate two transit centers to reduce. the impact to transit service caused by the SUMC Project. These transit centers shall be located at Hoover Pavilion and at SHC, and shall be off-street facilities. The transit centers shall accommodate three to four buses simultaneously, and shall have shelters, seating, lighting, signs. maps, bus schedules, and bicycle parking. On-street bus stops along Welch Road and Quarry Road shall also be provided, but the transit centers shall accommodate the majority of transit riders and shall . be located to maximize the convenience of employees, patients, and visitors. One transit center shall be located in the vicinity of Welch Road and Pasteur Drive to serve SHC. The other transit center shall be located near the entrance to Hoover Pavilion. Both of these transit centers shall provide the focal point for transit use for the SUMC. TR-7.2 Provide Expanded Transit Sen'ice. The SUMC Project sponsors shall make a fair share financial contribution to the cost of expanding existing bus service of the Marguerite, Crosstown, S=Significaru SU= Significant Unavoidable Impact Significance With Mitigation LTS Stanford Uhiversity Medical Center Facilities Renewal and Replacement Draft ElR -Summary Impacts I NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signi.ficant Mitigation Measures and Menlo Park Shuttle bus services, and to the VT A Community Bus Service. • Marguerite Shuttle. The SUMC Project sponsors shall make a financial contribution to expand the Marguerite shuttle service into Palo Alto. • U Line. The SUMC Project sponsors shall make a financial contribution towards the operation of the U Line. Arrangements with AC Transit shall be made to increase U Line service (such as decreasing headways) to meet the increase in demand attributable to the SUMC Project, and ensure that load factors remain below 1.0, • Crosstown Shuttle. The SUMC Project sponsors shall participate in operating the Palo Alto Crosstown Shuttle service, by contributing to the Citywide Traffic Impact Fee, which would include covering the costs of this service. Then current fee is $2,861 per net new PM Peak Hour trips. A portion of Stanford's Citywide Traffic Impact Fee shall be used by the City to expand City shuttle services. • VTA Community Bus Service. The SUMC Project sponsors shall contribute to fund the project's fair share of Palo Alto's share of expanded VTA Community Bus Service. • Menlo Park Shuttle Bus. The SUMC Project sponsors shall pay into the City of Menlo Park shuttle fee at $0.105 per square foot of new development annually or a percentage agreed between Menlo Park and SUMC Project sponsors. In Menlo Park, the contribution shall be tied to the amount of project traffic added to analyzed roadway segments and intersections. S=Significant SU= Sign(ficant Unavoidable Stanford Univelisity Medical Center Facilities ReneJ1,'al and Replacement Draft EIR -Summary Impact Significance With Mitigation S-45 Table 8-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts TR-8. Parking Impa6ts. The SUMC Project would provide adequate parking for its demand, and would thus have a less­ than-significant parking impact. TR-9. Emergency ~ccess. Implementation of theSUMC I Project could potentially result in inadequate emergency access due to increased conge~tion, a significant impact. I TR-lO. Cumulative Construction Impacts. The SUMC Project, in combinatiop with concurrent construction projects in the vicinity of the SjUMC Sites, could result in a significant construction-period impact. The contribution of the SUMC Project would be cumulatively considerable. I TR-ll. Cumulative Transit Impacts. Cumulative growth would result in a less-than-significant cumulative impact 011 AQ-l. Construction Criteria Air Pollutant Emissions. Without mitigation, construction activities associated with the SUMC Project could pause emissions of dust and pollutants from equipment exhaust that could contribute to existing air quality violations or eFPose sensitive receptors to substantial pollutant concentration~. Impacts would be significant. I Impact Significance Without Mitigation Mitigation Measures LTS None required. S MITIGATION MEASURES. Mitigation Measure TR-9.1 involves tbe installation of emergency vehicle traffic signal priotity (OptiCom) at all intersections significantly impacted by the SUMe Project. Implementation of this measure would reduce the SUMC Project's impact to less-than­ significant levels. ,TR-9.1 Pay Fair Share Towards OptiCom Installation. The SUMC Project sponsors shall pay their fair-share fmancial contribution towards the City of Palo Alto, to assist with the installation and operation of emergency vehicle traffic signal priority (OptiCom) at all significantly impacted intersections. S MlTlGATION MEASURES. With implementation of Mitigation Measures TR-l.l through TR-l. 9, which involve transportation-related construction management measures, the SUMC Project's contribution to the significant cumulative construction-period impact would be reduced to less than cumulatively considerable. LTS None required. S MITIGATION MEASURES. To minimize dust emissions, the Bay Area Air Quality Management District (BAAQMD) has identified a set of feasible PMIO control measures for all construction activities in the air basin. Implementation of the BAAQMD-recommended measures (Mitigation Measure AQ-l.l below) would reduce the impacts caused by construction dust to a less-than-significant level. Additionally, implementation of NI = No Impact LTS = Less-thrm-Sign(ficant S=Significrmr SU= Significant Unavoidable Impact Significance With Mitigation N/A LTS LTS N/A SU S-46 Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impacts I NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation . LTS = Less-than-Significant Mitigation Measures construction equipment emission reduction measures (Mitigation Measure AQ-1.2 below) would further reduce NOx, ROG, PMlO and PM2.5 emissions during construction. However. reduction of NOx emissions below 80 lbs/day during the first year of construction could not be guaranteed, and this impact would still be considered significant and unavoidable. AQ-l.l Implement Recommended Dust Control Measures. To reduce dust eniissions during project demolition and construction phases, the SUMC Project sponsors shall require the construction contractors to comply with the dust control strategies developed by tbe BAAQMD. The SUMC Project sponsors sball include in construction contracts the following requirements: a. Cover all trucks bauling soil, sand, and other loose materials including demolition debris, or require all trucks to maintain at least two feet of freeboard; b. Water all active construction areas (exposed or disturbed soil surfaces) at least twice daily; c. Use watering to control dust generation during demolition of structures or break-up of pavement; d. Pave, apply water three times daily, or apply (non-toxic) soil stabilizers on all unpaved parking areas and staging areas; e. Sweep streets daily (with water sweepers) all paved access roads, parking areas and staging areas during the earthwork pbases of construction; f. Sweep daily (with water sweepers) if visible soil material is carried onto adjacent public streets; g. Hydroseed or apply (non-toxic) soil stabilizers to inactive construction areas (previously graded areas inactive for ten days or more); S=Signijicant SU= Signijicant Unavoidable Sraf~ford UniveT;sity Medical Center Facilities Renevlial and Replacement Draft EIR -Summary Impact Significance With Mitigation S-47 Impacts I , NI = No Impact S-48 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures h. Enclose, cover, water twice daily, or apply non-toxic soil binders to exposed stockpiles (dirt, sand, etc.); i. Limit traffic speeds on unpaved roads to 15 mph; ] . Install sandbags or other erosion control measures to prevent silt runoff to public roadways; and k. Replant vegetation in disturbed areas as quickly as possible. AQ-l.2 Implement Equipment E7.:haust Emission Reduction Measures. To reduce emissions from construction equipment during project demolition and construction phases. the SUMC Project sponsors shall require the construction contractors t6 comply with the following emission reduction strategies to the maximum feasible extent. The SUMC Project sponsors shall include in construction contracts the following requirements: a. Where possible, electrical equipment shall be used instead of fossil-fuel powered equipment. b. The contractor shall install temporary electrical service whenever possibJe to avoid need for fossil-fuel powered equipment. c. Running equipment not being actively used for construction purposes for more than five minutes shall be turned off. (e.g., trucks waiting to deliver or receive soil, aggregate, or other bulk materials; however, rotating-drum concrete trucks may keep their engines running continuously as long as they are on site). d. Trucks shall be prohibited from idling while on residential streets serving the construction site (also included in Mitigation Measure NO-I.I). S=Significant SU= Sign(ficant Unavoidable Impact Significance With Mitigation Stanford University Medical Center Facilities Renewal OlId Replacement Draft EIR -SummaJY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts AQ-2. Operational ICriteria Air Pollutant Emissions. Combined mobile and stationary source emissions during operation of the SUMF Project would exceed the Bay Area Air Quality Manageme:p.t District'S significance threshold of 80 pounds/day of ROG, I'fOx and PMlO. Therefore, air emissions would result in a s~bstantial contribution to an existing regional air quality problem and a significant impact. I AQ-3. Localized Cd-bon Monoxide Impacts from Motor Vehicle Traffic. The iSUMC Project would have less-than­ significant localized air emissions re&ulting from additional traffic. AQ-4. Toxic Air Contaminants. Simultaneous exposures to DPM and T ACs from the construction and operational components of the SUMC Project would have a less-than­ significant impact on aj~· quality. I I I Impact Significance Without Mitigation S LTS LTS I NI = No Impact LTS = Less-than-Significant Mitigation Measures e. Diesel-powered construction equipment shall be Tier III or Tier IV California Air Resources Board (CARB) certified equipment to the maximum feasible extent. f. The engine size of construction equipment shall be the smallest practical to accomplish the task at hand. MITIGATION MEASURES. Mitigation Measure TR-2.3 involves implementation of enhanced TDM measures. The enhanced TDM measures include provision of the Caltrain GO Pass to SUMC employees, or an equivalent TDM measure. If the GO Pass would be provided, then remote parking spaces at the Ardenwood Park and Ride Lot in the East Bay would also be provided to serve commuters from the East Bay. Provision of the GO Pass plus remote parking spaces.in the East Bay would reduce Vehicle Miles Travelled by 13.5 percent. This reduction in SUMC Project VMT, however, would not be sufficient to prevent project ROG, NOx and PMIO emissions from exceeding the BAAQMD significance thresholds. In addition, the City shall consider the feasibility of Mitigation Measure PH- 3.1. Nonetheless, impacts would be significant and unavoidable even with mitigation. None required.· None required. S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impact Significance With Mitigation SU N/A N/A S-49 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts AQ-5. Objectionable IOdors. The SUMC Project would have a less-than-significant impact related to exposing the public to objectionable odors th~t would affect a substantial number of people. I I AQ-6. Cumulative qonstruction Emissions. Construction equipment NOx emissions associated with the SUMC Project oould oontrlbuto o"",i!'abIY to regional aU quality proble"", AQ-7. Cumulative qperational Emissions. SUMC Project operation could contr~ute considerably to a degradation of regional air quality as 4efined by the BAAQMD. i ! AQ-8. Cumulative Construction and Operational TAC Emissions. SUMC Project T AC emissions could contribute considerably to the h~alth risk of sensitive receptors on and near the SUMC Proj~ct site and, thus, have a significant cumulative impact. Impact Significance Without Mitigation LTS S S s I NI = No Impact LTS = Less-than-Significant S-50 Mitigation Measures None required. M1TIGATION MEASURES. Mitigation Measures AQ-1.1 and AQ-1.2 would reduce. the SUMC Project's contribution to cumulative construction emissions, although the contribution to NOx would remain cumulatively considerable. M1TIGATION MEASURES. Mitigation Measure TR-2.3 involves implementation of enhanced TDM measures. The enhanced TDM measures include provision of the Cal train GO Pass to SUMC employees, or an equivalent TDM measure. If the GO Pass would be provided, then remote parking spaces at the Ardenwood Park and Ride Lot in the East Bay would also be provided to serve commuters from the East Bay. As additional mitigation, the City shall consider the feasibility of Mitigation Measure PH-3.l, as identified and discussed in more detail in Section 3.13, Population and Housing. These measures would reduce the contribution to criteria pollutants during operation of the SUMC Project. However. even with mitigation, emissions would still exceed the BAAQMD significance thresholds, and the contribution would remain considerable. M1TIGATION MEASURE. Mitigation Measure AQ-l.2 (Implement Equipment Exhaust Emission Reduction Measures) has been identified primarily to reduce construction-phase criteria pollutant emissions, but it would also reduce Diesel Particulate Matter (DPM) emissions. However, the emissions of criteria and DPM emissions from project construction sources were based on current best estimates of the type, number, and duration of use of the SUMC Project construction equipment. While some additional reductions of Toxic Air Contaminants (TACs) would be expected with Mitigation Measure AQ-1.2, where their implementation is feasible, their S=Significant SU= Significant Unavoidable Impact Significance With Mitigation N/A SU su SU Stanford University Medical Center Facilities Renewal and Replacement Draft ElR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts The proposed Emissions Reduction greenhouse gas emission increases pro"bosed development program. However, Reduction Program would not be goals of the City'S Climate Protection Impact Significance Without Mitigation : Nf = No Impact LTS = Less-than-Significant Mitigation Measures potential additional reductions were not included in the SUMC Project's DPM estimates that were the basis of the Health Risk Assessment. However, it is not likely that the additional reductions in SUMC Project TAC emissions resulting from their inlplementation would reduce the SUMC Project health risk to the point where it would not be cumulatively considerable in the context of Palo Alto's high TAC background levels. Thus, SUMC Project TAC emissions would remain cumulatively significant even after the inlplementation of all feasible TAC reduction measures. MlTIGATION MEASURES. The mitigation measures below, wbich in addition to the proposed Emissions Reduction Program, would further minimize the increase in greenhouse gas emissions from this project. However, even with these measures ilie SUMC Project would contravene the goals in the City'S Climate Protection Plan and would have a cumulatively considerable contribution to global climate change. CC-l.l Commission and Retro-Commission Energy Systems for New and Existing Buildings. New construction and existing buildings altered by construction of the SUMC Project shall undergo commissioning of energy and HV AC systems during construction and on an annual basis during the first five years of operation. The commissioning process shall follow the standards of the American Society of Heating, Refrigerating, and Air­ Conditioning Engineers (ASHRAE) Guideline 0-2005 or the International Performance Measurement and Verification Protocol (MVP). This process would ensure tbat new and existing energy systems would perform interactively according to construction documents, the SUMC Project design intent and the owner's operational needs. S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SumlllaJY Impact Significance With Mitigation S-51 Impacts NI = No Impact S-52 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signijicant Mitigation Measures CC-l.2 Participate in Palo Alto Green Energy PrograrrJ, Other Equivalent Renewable Energy Program, or combination thereof Under the Palo Alto Green program, residential, business and industrial customers purchase renewable energy equivalent to their electricity needs at an additional cost of 1.5 cents per kWh above standard electric rates. The SHC and LPCH facilities shall participate in this program to offset electricity emissions; develop new renewable generation sources in collaboration with the CPAU; incorporate a renewable energy source (such as photovoltaics) into the SUMC Project, or a combination thereof, such that a minimum of 54,640 MWh of electricity usage is offset annually. CC-I.3 Provide Annual Greenhouse Gas Reporting. The SHC and LPCH shall perform an annual inventory of greenhouse gas emissions associated with hospital and medical facilities on the SUMC Sites. This inventory shall be performed according to a common industry-standard emissions reporting protocol, such as the approaches recommended by California Air Resources Board, The Climate Action Registry, or Business Council for Sustainable Development (BCSD). This inventory shall be shared with the City of Palo Alto to facilitate the development of future collaborative Emissions Reduction Programs. Emissions associated with energy, water, solid waste, transportation, employee commute and other major sources shall be reported in this inventory. CC-I.4 Prepare Waste Reduction Audit. The SUMC Project sponsors shall perform a waste reduction audit of waste management practices at the hospitals prior to construction of new facilities and after completion of the SUMC Project to determine post­ project diversions. This audit shall be repeated annually, and S=Signijicant SU= Significant Unavoidable Impact Significance With Mitigation Stal1ford University Medical Center Facilities Renewal and Replacement Draft EIR -SummaJY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts CC-2 Emit Significant Greenhouse Gas Emissions. The proposed Emissions R~duction Program would minimize the greenhouse gas emiSsion increases associated with the I proposed development program, although the proposed Emissions Reduction Program would not reduce emissions to 30 percent below business as usual (BAU) emissions. Therefore the SUMC project would have a cumulative considerable contribution to global climate change. Impact Significance Without Mitigation S NI = No Impact LTS = loess-than-Significant Mitigatioll Measures with the results being made available to the public or to City of Palo Alto staff. CC-l.5 Implement Construction Period Emission Reduction Measures. Prior to the issuance of a grading permit the SUMC Project sponsors shall incorporate the following measures into the construction phasing plan and submit to City Planning for approval. • Use alternative-fueled (e.g., biodiesel, electric) construction vehicles/ equipment of at least 15 percent of the fleet; • Use local building materials of at least 10 percent; and • Recycle at least 50 percent of construction or demolition materials. MITIGATION MEASURE. Mitigation Measures CC-l.l through CC-1.5, and TR-l.3 would reduce greenhouse gas emissions. In addition, to further reduce impacts related to greenhouse gas emissions, the City shall consider the feasibility of Mitigation Measure PH-3.1. However, even with the implementation of all feasible mitigation measures, the anticipated emissions would remain above both the City of Palo Alto's Climate Protection Plan and the CARB' s reduction emission goals of 30 percent below BA U emissions. Because these reduction levels cannot be achieved, the SUMC Project would emit significant amounts of greenhouse gases and would have a cumulatively considerable contribution to global climate cbange. S=Signijicant SU= Significant UnlIvoidable Stanford University Medical Center Facilities Renewal and Replacement Draft ElR -Summary Impact Significance With Mitigatioll SU S-53 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts NO-l. Construction Noise. Construction of the SUMC Project would create I a substantial temporary increase in ambient noise levels on the SUMC Sites compared to existing ambient noise levels. The noise increase would be a significant impact to tpe sensitive uses (i.e., patients) on the Main SUMC Site during const~ction. Impact Significance Without Mitigation S NI = No Impact LTS = Less-than-Significant S-54 Mitigation Measures MlTlGATION MEASURE. The following lDltJ.gation measures would not reduce construction noise impacts to on-site sensitive receptors to less-than­ significant levels, althougb they would lessen construction-related noise. NO-I. I Implement Best Management Practices to Reduce Construction Noise. The SUMC Project sponsors shall incorporate the following practices into the construction documents to be implemented by the SUMC Project contractor: a. Provide enclosures such as heavy-duty mufflers for stationary equipment, shrouding or shielding for impact tools, and. barriers around particularly noisy operations on the site. b. Use quiet construction equipment whenever possible, particularly air compressors. c. Provide sound-control devices on equipment no less effective than those provided by the manufacturer. d. Locate stationary equipment, material stockpiles, and vehicle staging areas as far as practicable from sensitive receptors. e. Prohibit unnecessary idling of internal combustion engines. f. Require applicable construction-related vehicles and equipment to comply with the City'S truck route ordinance. g. Designate a noise disturbance coordinator who shall be responsible for responding to complaints about noise during construction. The telephone number of the noise disturbance coordinator shall be conspicuously posted at the construction site and shall be provided to the City. Copies of the construction schedule shall also be posted at nearby noise­ sensitive areas. S=Significant SU = Significant Unavoidable Impact Significance With Mitigation Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts NO-2. Construction fibration. Construction of the SUMC Project would have lesrhan-Significant vibration impacts. NO-3. Operational Noise Impacts from Transportation Sources. Increased tr~ffic and helicopter noise levels due to implementation of thJ SUMC Project would be less than significant. However! noise from ambulances due to implementation of the I SUMC Project would increase along Sand Hill Road west qf El Camino Real, and would increase roadside noise levels py an amount considered unacceptable under the policies of the City Comprehensive Plan. I NO-4. Operational IStationary Source Noise Impacts. Operational stationary I source noise generated by the SUMC Project could potential~y increase anlbient noise levels in the vicinity of the SUMC Sites and result in a significant impact. Impact Significance Without Mitigation LTS S S i NI = No Impact LTS = Less-than-Signfficant Mitigation Measures None required. MITIGATION MEASURE. No mitigation measure (short of forbidding ambulance access to the new emergency room via the Durand Way access route; a measure that may be practically impossible given the emergency nature of ambulance activity) would prevent or reduce the identified SUMC Project-related ambulance noise impact at the noise-sensitive uses along Sand Hill Road. As such, the impact would be significant unavoidable impact. MITIGATION MEASURE. The following mitigation measure would reduce noise impacts to sensitive receptors from HV AC equipment and emergency generators proposed for SUMC Project. Implementation of this measure would reduce the SUMe Project's noise impacts at 1100 Welch Road. NO-4.1 Shield or Enclose HVAC Equipment and Emergency Generators. Noise levels from mechanical equipment shall be minimized to the degree required by the City Noise Ordinance by proper siting and selection of such equipment and through installation of sufficient acoustical shielding or noise emission controls. Noise levels for the emergency generators near Welch Road shall be reduced such that noise levels do not. exceed the City's General Daytime Exception standard of 70 dBA at 25 feet. An acoustical analysis shall be prepared by a qualified professional to ensure that the new mechanical equipment is in compliance with noise standards of the Noise Ordinance. S=Signijicant SU= Signijicant Unavoidable Sta/~ford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impact Significance With Mitigation N/A SU LTS S-55 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts I NO-5. Cumulative qonstlUction Noise Impacts. If other foreseeable constructi0n in the immediate vicinity of the SUMC Sites would otcur simultaneously with the proposed SUMC Project construFtion, then significant cumulative noise impacts to adjacent re~idential and other noise-sensitive uses could occur. The SUMC Project's contribution would likely be cumulatively consid~rable. I NO-6. Cumulative I Construction Vibration Impacts. Vibration during constifUction activities under the cumulative scenario would result I in a less-than-significant cumulative impact. . NO-7. Cumulative Oberational Transportation Source Noise Impacts. Cumulative development would result in less-than­ significant cumulative ~oise impacts. NO-8. Cumulative @perational Stationary Source Noise Impacts. Cumulative Idevelopment would not result in a significant increase in cumulative noise levels from operational stationary sources at sensitive receptors. CR-l. Impacts on Historical Resources. The SUMC Project would have a significant impact on historical resources. Impact Significance Without Mitigation s LTS LTS LTS s NI = No linpact LTS = Less-than-Significant S-56 Impact Significance With Mitigation Measures Mitigation MmGATION MEASURE. Although measures under Mitigation Measure SU NO-I.1 would lessen the resulting noise contribution from the construction of the SUMC Project at 1100 Welch Road and on-site receptors, the contribution of the SUMC Project construction noise would remain cumulatively considerable. None required. N/A None required. N/A None required. NI A MITIGATION MEASURES. Implementation of the Mitigation Measures CR-l.l and CR-1.5 would reduce potential vibration and construction­ related impacts to the Hoover Pavilion resulting from demolition of adjacent sheds and storage facilities, impacts from falling construction debris, and impacts from movement of heavy equipment to a less-than­ significant level. Implementation of Mitigation Measures CR-l.2 through CR-1.4 would reduce impacts due to the loss of the Stone Building complex; however, the impact would remain significant and unavoidable. S = Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft ElR -Summary SU Impacts NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signijicant Mitigation Measures Mitigation Measure CR-1.5 requires implementation of the Stanford Hoover Pavilion Protection Documents (Documents) prepared by ARG and dated September 21, 2009 (see Appendix J). These Documents provide specifications for the treatment and protection of the Hoover Pavilion during SUMC Project construction activities that could damage the historic fabric of the building including the installation of protective covering of certain exterior surfaces and the removal, cataloging, and storage of selective historic elements. The Documents are based on National Park Service and National Fire Protection Agency protection guidelines and include details on materials and methods of installation for the protective coverings to prevent damage from nearby demolition. Proper installation, as required in the Documents would prevent the protective covering itself from damage the building. The removal of historic elements would ensure their, protection of some of the more fragile elements from construction activities and property cataloging and storage of such elements would ensure their proper care and reinstallation. The Documents include such details as specifying under what weatber conditions it is acceptable to perform the various tasks that could be negatively impacted by different weather conditions. Any variations on the specifications of the Documents would not be allowed witbout prior consultation with ARG, or a qualified preservation architect, Refer to Appendix J, Stanford Hoover Pavilion Protection Documents, for a complete list of specifications for the Hoover Pavilion. CR-l.l Manually Demolish Structures at the Hoover Pavilion Site. Where feasible, the project sponsors shall establish a perimeter of construction fencing around the Hoover Pavilion at a minimum of 25 feet to establish a protective buffer around the building. The demolition of these sheds and storage faciljties shall be accomplisbed manually without the use of vibration causing equipment. Additional protective fencing at a height sufficient to prevent any debris from hitting the building shall S=Signijicant SU= Signijicant Unavoidable Stal~ford University Medical Center Facilities Renev>'al and Replacement Draft EJR -Summary hnpact Significance With Mitigation S-57 Impacts NI = No Impact 8-58 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures also be installed between the Hoover Pavilion and demolition activities occurring within the 25 foot buffer. CR-I.2 Prepare HABS Documentation for the Stone Building Complex. The SUMC Project sponsors shall prepare HABS-like documentation using the National Park Services' Histodc American Building Surveys Level III guidelines for each of the buildings in the Stone Building complex prior to demolition of each building that comprises this historic resource (East, West, Core, Boswell, Edwards, Lane, Alway, and Grant). HABS-like recordation shall not be required until each of the individual buildings is vacated and prepared for demolition. The documentation shall include written and photographic documentation of each of the historic structures within the Stone Building complex. The documentation shall be prepared by a qualified professional meeting the Secretary of the Interior's Professional Qualifications Standards for Architectural History or History. The documentation shall be prepared based on the National Park Services' HABS standards and include, at a minimum, the following: • Site-specific history and appropriate contextual information regarding the Stone Building complex. This history shall focus on the reasons for the buildings' significance: heart transplantation program and the role of B.D. Stone in the design of the complex. • Accurate mapping of all buildings that are included in the Stone Building complex, scaled to indicate size and proportion of the buildings to surrounding buildings; if existing plans accurately reflect these relationships these may S=Significant SU= Significant Unavoidable Impact Significance With Mitigation StaJiford University Medical Center Facilities Renewal and Replacement Draft EIR -Summmy Impacts i NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signijicaru Mitigation Measures be reformatted for submittal per HABS guidelines for CAD submittals. • Architectural descriptions of the major exterior features and public rooms within the Stone Building complex as well as descriptions of typical patient, office, laboratory, and operating rooms. • Photographic documentation of the interior and exterior of the Stone Building complex and Thomas Church-designed landscape features. Either HABS standard large format or digital photography may be used. If digital photography is used, the ink and paper combinations for printing photographs must be in compliance with National Register­ National Historic Landmark photo expansion policy and have a permanency rating of approximately 115 years. Digital photographs will be taken as uncompressed . TIF file format. The size of each image shall be 1600x1200 pixels at 300 ppi (pixels per inch) or larger, color format, and printed in black and white. The file name for each electronic image shall correspond with the Index to Photographs and photograph label. CR-l.3 Distribute Written and Photographic Documentation to Agencies. The written and photographic documentation of historic resources shall be disseminated on archival-quality paper to Stanford University, the Northwest Information Center, and other local repositories identified by the City of Palo Alto. CR-l.4 Prepare Permanent Interpretive DisplayslSignagelPlaques. The SUMC Project sponsors shall install interpretive displays within the SUMC Sites that provide information to visitors and residents regarding the history of the Stone Building complex. These S=Signijicant SU= Signijicaru Unavoidable Sta/~tord University Medical Center Facilities Relll!VI:al and Replacement Draft ElR -SummalY Impact Significance With Mitigation S-59 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts CR-2. Impacts on Prehistoric or Archaeological Resources. The SUMC Project could potentially encounter archaeological resources and result in a significant impact. Impact Significance Without Mitigation S NI = No Impact LTS = Less-than-Signijicant S-60 Mitigation Measures displays shall be installed in highly visible public areas such as the property's open space or in public areas on the interiors of buildings. The displays shall include historical data and photographs as well as physical renmants of architectural elements. Interpretive displays and the signage/plaques installed on the property shall be sufficiently durable to withstand typical Palo Alto weather conditions for at least five years. Displays and signage/plaques shall be lighted, installed at pedestrian­ friendly locations, and be of adequate size to attract the interested pedestrian. Maintenance of displays and signage/plaques shall be included in the maintenance program on the property. Location and materials for the interpretative displays shall be subject to review by the Palo Alto Architectural Review Board and approval by the Planning Director. CR-I.5 Implement Protection Documents for the Hoover Pavilion. The SUMC Project sponsors shall ensure the implementation of the Stanford Hoover Pavilion Protection Documents (Documents) prepared by ARG and dated September 21, 2009. The SUMC Project sponsors shall comply with the specifications for the treatment and protection of the Hoover Pavilion during SUMC Project construction activities that could damage the histotic fabric of the building as provided in the Documents. MITIGATION MEASURE. Mitigation Measure CR-2.1 provides discovery and evaluation procedures for any previously unknown archaeological resources on the SUMC Sites and requires that a professional archaeologist employ preservation in place, data recovery, or other methods that meet the Secretary of the Interior's Standards for Archaeological Documentation to reduce impacts on unique archaeological resources. Therefore, implementation of the following mitigation measure would ensure the impact remains less than significant. (LTS) S=Signijicant SU = Signijicant Unavoidable Impact Significance With Mitigation LTS Stal'iford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts CR-3. Impacts on Human Remains. The SUMC Project could potentially encounter human remains and result in a significant impact. Impact Significance Without Mitigation S NT = No Impact LTS = Less-than-Significcmt Mitigation Measures CR-2.1 Constmction Staff Training and Consultation. .Prior to any construction or earth-disturbing activities, a qualified archaeologist shall inform construction supervisors of the potential to encounter cultural resources. All construction personnel shall be instructed to be observant for prehistoric and historic-era artifacts, subsurface archaeological features or deposits, including accumulations of dark, friable soil ("midden"), stone artifacts. animal bone, and shell. In the event that any prehistoric or historic subsurface archaeological features or cultural deposits are discovered during construction-related earth-moving activities, all ground-disturbing activity within 100 feet of the resources shall be halted and the City shall be notified. The City shall consult with the Stanford University Archeologist to assess the significance of the find. If the fmd is determined to be an historical resource or a unique archaeological resource as defined by CEQA, then representatives of the City and the Stanford University Archaeologist shall meet to determine the appropriate course of action. All significant cultural materials recovered shall be subject to '-scientific analysis, professional museum curation, and a report shall be prepared by the qualified archaeologist according to current professional standards. MITIGATION MEASURE. Mitigation Measure CR-3.1 summarizes the procedures to be taken in the event that any previously unknown human remains are discovered on the SUMC Sites. Therefore, implementation of the following mitigation measure would ensure that the potential impact remains less than significant. CR-3.1 Conduct Protocol and Procedures for Encountering Human Remains. If human remains (including disarticulated or cremated remains) are discovered at any SUMC Project construction site during any phase of construction, all ground-disturbing activity S = Significant SU= Significant Unavoidable Stal~ford University Medical Center Facilities Renewal and Replac~ment Draft ElR -Summary Impact Significance With Mitigation LTS S-6J Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts CR-4. Impacts on Paleontological Resources. The SUMC Project could have a significant impact on unique paleontological resources or unique geologic resources. Impact Significance Without Mitigation S NI = No Impact LTS = Less-than-Significant S-62 Mitigation Measures within 100 feet of the human remains should be halted and the Stanford University Archaeologist. City of Palo Alto, and the County coroner notified immediately, according to Section 5097.98 of the State Public Resources Code and Section 7050.5 of California's Health and Safety Code. If the remains are determined by the County coroner to be Native American, the Native American Heritage Commission (NAHC) shall be notified within 24 hours, and the guidelines of the NAHC adhered to in the treatment and disposition of the remains. The SUMC Project sponsors shall retain a professional archaeologist with Native American burial experience to conduct a field investigation of the specific site and consult with the Most Likely Descendant, if any, identified by the NARC. As necessary, the archaeologist may provide professional assistance to the City of Palo Alto, including the excavation and removal of the human remains. If the human remains cannot be avoided, and the Most Likely Descendant requests that the human remains be removed from its location, the SUMC Project sponsors shall implement removal of the human remains by a professional archaeologist. The City of Palo Alto shall verify that the mitigation is complete before the resumption of ground-disturbing activities within 100 feet of where the remains were discovered. MITIGATION MEASURE. Mitigation Measure CR-4.1 provides protocol for encountering paleontological resources and would reduce the potential impacts resulting from disruption to unique paleontological resources to a less-than-significant level. CR-4.1 Conduct Protocol and Procedures for Encountering Paleontological Resources. Should paleontological resources be identified during SUMC Project growld-disturbing activities, the SUMC Project sponsors shall notify the City and the Stanford S = Significant SU= Significant Unavoidable hnpact Significance With Mitigation LTS. Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummalY Impacts NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures University Archaeologist and cease operations in the vicinity of the potential . resource until a qualified professional paleontologist can complete the following actions when appropriate: 0 • Identify and evaluate paleontological resources by intense field survey where impacts are considered high; • Assess effects on identified resources; and • Consult with the City of Palo Alto and the Stanford University Archaeologist. Before operations in the vicinity of the potential resource resume, the SUMC Project sponsors shall comply with the paleontologist's recommendations to address any significant adverse effects where determined by the City of Palo Alto to be feasible. In considering any suggested mitigation proposed by the consulting paleontologist, the SUMC Project sponsors shall consult with the Stanford University Archaeologist and the City to determine whether avoidance is necessary and feasible in light of factors such as the nature of the find, project design, cost policies and land use assumptions, and other considerations. If avoidance is infeasible, other appropriate measures (e.g. data recovery) shall be instituted to avoid a significant impact. Work may proceed in other parts of the SUMC Sites while mitigation for paleontological resources is completed. S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renel'-'al and Replacement Draft EIR -Summary Impact Significance With Mitigation S-63 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts CR-5. Cumulative Impacts on Historic Resources. The SUMC Project, in combination with other past, current, and probable future development in the City, would cause a substantial change in the significance of the City's historic resources and thus have a significant cumulative impact. The SUMC Project's contribution to the cumulative impact would be cumulatively considerable. CR-6. Cumulative Impacts on Prehistoric andlor Archaeological Resources and Human Remains. The SUMC Project, in combination with other reasonably foreseeable probable future development, could cause a substantial change in the significance Of prehistoric and/or archaeological resources or human ref1lains and thus contribute to a significant cumulative impact. The SUMC Project is cOI1.<;ervatively assumed to have a considerable contribution. CR-7. Cumulative Impacts on Paleontological Resources. The SUMC Project, in combination with other reasonably foreseeable probable future development where the Pleistocene-age creek bed may occur, could have a significant cumulative impact. Such an impact would occur if the buried Pleistocene-age creek bed is exposed in lengths greater than approximately 100 feet (or a sufficient length to support detailed hydrological study) and if such deposits contain substantially intact skeletons of extinct species. These conditions would represent a major find for regional paleontology. In the case that significant paleontological finds-such as stretches of buried Pleistocene-age creek bed greater than 100 feet in length and containing intact skeletons of extinct species-are made on the SUMC Site, then the Impact Significance Without Mitigation S s s NI = No Impact LTS = Less-than-Significant S-64 Impact Significance With Mitigation Measures Mitigation MITIGATION MEASURES. Due to tbe d.emolition of the Stone Building SU complex, the SUMC Project's contribution would remain cumulatively considerable as this impact cannot be avoided. Implementation of Mitigation Measures CR-1.2 through CR-1.4 would reduce the SUMC Project's contribution to the cumulative impact, but not to a less than cumulatively considerable level. MITIGATION MEASURES. Compliance with Mitigation Measures CR-2.1 LTS and CR-3.1 would reduce the SUMC Project's contribution to the cumulative impact to a less than cumulatively considerable level. MITIGATION MEASURE. Compliance with Mitigation Measure CR-4.1 LTS would reduce the SUMC Project's contribution to the cumulative impact to a less than cumulatively considerable level. S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summmy Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts to the cumulative impact on It;~UW\,;"~ could be cumulatively considerable. Impacts on ~jlt;\';li:lI-~ The SUMC Project could have a significant impact on special­ status wildlife resources. Impact Significance Without Mitigation NI = No Impact LTS = Less-than-Significant Mitigation Measures MITIGATION MEASURES. Mitigation Measures BR-l.l through BR-1.5, below, to be implemented by the SUMC Project sponsors, would reduce the SUMC Project's impact on special-status bats and Cooper's hawk to a less­ than-significant level. BR-I.I Conduct Pre-Demolition Sun'ey. The SUMC Project sponsors shall retain a qualified biologist ("bat biologist") to conduct a pre-construction survey for roosting bats in trees to be removed or pruned and structures to be removed. If no roosting bats are found, no further mitigation is required. If a bat roost is found, the SUMC Project sponsors shall implement the following measures to avoid impacts on roosting bats. BR-I.2 Avoid Roosting Areas. If non-breeding bats are found in a tree or structure to be removed, the individuals shall be safely evicted, under the direction of a qualified bat biologist, by opening the roosting area to allow airflow through the cavity. Demolition should then follow at least one night after initial disturbance for airflow. This action should allow bats to leave during darkness, thus increasing their chance of finding new roosts with a minimum of potential predation during daylight. If active maternity roosts are found in structures that will be removed as part of project construction, demolition of that structure shall commence before maternity colonies form (generally before March 1) or after young are flying (generally by July 31). S=Significant SU= Sign(ficant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impact Significance With Mitigation S-65 Impacts NI = No Impact S-66 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Signijicaru Mitigation Measures BR-l.3 Develop and Employ Bat Nest Box Plan. If special-status bats are fOlmd in structures to be removed, the SUMC Project sponsors shall develop a bat nest box plan for the SUMC Sites employing state-of-the-art bat nest box technology. TIle design and placement of nest boxes shall be reviewed by a qualified bat . biologist. BR-l.4 Avoid Tree Removal During Nesting Season. Tree removal or pruning shall be avoided from February 1 through August 31, the nesting period for Cooper's hawk, to the extent feasible. If no tree removal or pruning is proposed during the nesting period, no surveys are required. BR-I.5 Protect Cooper's Hawk in the Event of Nest Discovery. If tree removal or pruning is unavoidable during tbe nesting season, the SUMC Project sponsors shall hire a qualified biologist to conduct a survey for nesting Cooper's hawk within five days prior to the proposed start of construction. If active Cooper's hawk nests are not present, project activities can take place as scheduled. The qualified' biologist shall visit the site daily to search for nests until all nesting substrates are removed. This will avoid impacts to Cooper's hawk tbat may have moved into the site and initiated nest-building after the start of tree removal activities. Additionally, if more than 5 days elapses between the initial nest search and the tree removal, it is possible for new birds to move into the construction area and begin building a nest. If there is such a delay, another nest survey shall be conducted. If any active Cooper's hawk nests are detected, the SUMC Project sponsors shall delay removal of the applicable tree or shrub while the nest is occupied with eggs or young who have not fledged. A qualified biologist shall monitor any occupied nest to determine when the Cooper's hawk nest is no longer used. S=Signijicant SU= Signijicant Unavoidable Impact Significance With Mitigation Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SmIC Project Summary of Impacts and Mitigation Measures Impacts BR-2. Loss of Riparian or Other Sensitive Habitats, Including Wetlands asl Defined by Section 404 of the Clean Water Act. Construction of the SUMC Project would have a less-than-significant i!hpact on riparian or other sensitive habitat resources, incl~aing wetlands. BR-3. Interference with the Movement of Any Native Resident or MigratorY Fish or Wildlife Species or with Established Native Re~ident or Migratory Wildlife Corridors, or Use of Native Wildlife Nursery Sites. The SUMC Project would have no impact on the movement of any native resident or migratory fish or wildlife species, or use of native resident or migratory wildlife corridors, but could impede the use of native wildlife nursery sites and thus result in a significant impact. Impact Significance Without Mitigation LTS S NI = No Impact LTS = Less-than-Significant Mitigation Measures None required. MITIGATION MEASURES. Mitigation Measures BR-3.1 and BR-3.2, below, would reduce the SUMC Project's impact on nesting migratory birds to a less-than-significant level. BR-3.1 Avoid Tree Removal During Nesting Season. Tree or shrub removal or pruning shall be avoided from February 1 through August 31, the bird-nesting period, to the extent feasible. If no tree or shrub removal or pruning is proposed during the nesting period, no surveys are required. BR-3.2 Protect Birds in the Event of Nest Discovery. If tree and shrub removal or pruning is unavoidable during the nesting season, the SUMC Project sponsors shall hire a qualified biologist to conduct a survey for nesting raptors and other birds within five days prior to the proposed start of construction. If active nests are not present, SUMC Project activities can take place as scheduled. The qualified biologist shall visit the site daily to search for nests until all nesting substrates are removed. These procedures would avoid impacts to any birds that may have moved into the sites and initiated nest-building after the start of tree and shrub removal activities. Additionally, if more than five days elapses between the initial nest search and tbe vegetation removal, it is possible for new birds to move into the construction area and begin building a nest. If there is such a delay. another nest survey shall be conducted. If any active nests are detected, the SUMC Project sponsors shall delay removal of the applicable S=Significant SU= Significant Unavoidable Stanford University Medical Center Facilities Renev.·al and Replacement Draft EIR -Summary Impact Significance With Mitigation N/A LTS S-67 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts BR-4. Result in a Substantial Adverse Effect on any Protected Tree as Defined by the City of Palo Alto's Tree Preservation Ordinance (Municipal Code Section 8.10). The SUMC Project could have a significant impact on Protected Trees. Impact Significance Without Mitigation S NI = No Impact LTS = Less-than-Significant S-68 Mitigation Measures tree or shrub while the nest is occupied with eggs or young who have not fledged. A qualified biologist shall monitor any occupied nest to determine when the nest is no longer used. MITIGATION MEASURES. Mitigation Measures BRA.1 through BR-4.5, below, to be implemented by the SUMC Project sponsors, would reduce the SUMC Project's impact on Protected Trees. In addition, Mitigation Measure BR-4.6 would require minor SUMC Project site plan adjustments to avoid removal of some biologically and aesthetically significant Protected Trees. However. the new Hospital District under the SUMC Project would allow the removal of up to 48 Protected Trees that are protected under the Municipal Code. In addition, minor modifications to the SUMC Project site plans would not be able to avoid the nine biologically and aesthetically significant Protected Trees in the Kaplan Lawn area. Therefore, the SUMC Project would result in a significant and unavoidable impact to Protected Trees. BR-4.1 Prepare a Tree Preservation ReponJor all Trees to be Retained. An updated tree survey and tree preservation report (TPR) prepared by a certified arborist shall be submitted for review and acceptance by the City Urban Forester. For reference clarity, the tree survey shall include (list and field tag) all existing trees within the SUMC Sites, including adjacent trees overhanging the SUMC Sites. The approved TPR shall be implemented in full, including mandatory inspections and monthly reporting to City Urban Forester. The TPR shall be based on latest SUMC plans and amended as needed to address activity or within the dripline area of any existing tree to be preserved, including incidental work (utilities trenching, street work, lighting, irrigation, etc.) that may affect the health of a preserved tree. The SUMC Project shall be modified to address recommendations identified to reduce impacts to existing ordinance-regulated trees. The S=Significant SU= Significant Unavoidable Impact Significance With Mitigation SU Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummalY 1.5 Impacts Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance With Impact Significance Without Mitigation Mitigation Measures Mitigation TPR shall be consistent with the criteria set forth in the Tree Preservation Ordinance, Palo Alto Municipal Code Section 8.10.030, and the City Tree Technical Manual, Section 3.00, 4.00 and 6.30.25 To avoid improvements that may be detrimental to the health of regulated trees, the TPR shall review the SUMC Project sponsors' landscape plan to ensure the new landscape is consistent with Tree Technical Manual, Section 5.45 ~ and Appendix L, Landscaping under Native Oaks. BR-4.2 Prepare a Solar Access Study (SAS) of Short and Long Tenn Effects on Protected Oaks. The SUMC Project sponsors shall prepare a SAS of Short and Long Term Effects 6n Protected Oaks. The SAS shall be prepared by a qualified expert team (horticulturalist, architect designer, consulting arborist) capable of determining effects, if any, to foliage, health, disease susceptibility and also prognosis for longevity. The SAS shall provide alternative massing scenarios to provide sufficient solar access and reduce shading detriment at different thresholds of tree health/decline, as provided for in the SAS. The SAS adequacy shall be subject to peer review as determined necessary by the City. The SAS design alternatives shall be the subject of specific discussion at all levels of ARB, Planning Commission, City Council, and public review in conjunction with the SUMC Project sponsors, the City Urban Forester, and Director of the Planning and Community Environment Department, until a final design is approved. Palo Alto Municipal Code Section 8.10.030 and the City Tree Technical Manual, Section 3.00, 4.00 and 6.30 is available at: http://www . cityofpaloalto. org/ environment/urban_canopy. asp. NI = No Impact LTS = Less-than-Significant S=Signijicant SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft ElR -Swnmary S-69 Impacts NI = No Impact S-70 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures BR-4.3 Prepare a Tree Relocation Feasibility Plan for Any Protected Tree Proposed for Relocation and Retention. Because of inherent mortality associated with the process of moving mature trees, a Tree Relocation and Maintenance Plan (TRMP) shall be prepared subject to Urban Forester's approval. The SUMC Project sponsors shall submit a TRMP to determine the feasibility of moving the Protected Trees to an appropriate location on site. Feasibility sball consider current site and tree conditions, a tree's ability to tolerate moving, relocation measures, optimum needs for the new location, aftercare, irrigation, and other long-term needs. If the relocated trees do not survive after a period of five years, the tree canopy shall be replaced with a tree of equivalent size or security deposit value. The TRMP shall be inclusive of the following mmlmum information: appropriate irrigation, monitoring inspections, post relocation tree maintenance, and for an annual arborist report of the condition of the relocated trees. If a tree is disfigured, leaning with supports needed, in decline with a dead top or dieback of IDore than 25 percent, the tree shall be considered a total loss and replaced in kind and size. The fmal annual arborist report shall serve as the basis for return of the Tree Security Deposit (see Mitigation Measure BR-4.4, below, for a discussion of the Tree Security Deposit). BR-4.4 Provide a Tree Preservation Bond/Security Guarantee. The natural tree resources on the SUMC Site include significant Protected Trees and those that provide neighborhood screening, including two trees proposed for relocation. Prior to building permit submittal, the Tree Security Deposit for the total value of the relocated trees, as referenced in the Tree Tec1mical Manual, Section 3.26, Security Deposits, shall be posted to the City S=Significant SU = Significant Unavoidable Impact Significance With Mitigation Stanford University Medical Center Facilities Renewal OJxd Replacement Draft EIR -Summary Impacts NI = No Impact Table 8-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures Revenue Collections in a form acceptable by the City Attorney. As a security measure, the SUMC Project sponsors shall be subject to a Memorandum of Understanding (MOU) between the City of Palo Alto and the SUMC Project sponsors describing a tree retention amount, list of trees. criteria and timeline for return of security, and conditions as cited in the Record of Land Use Action for the SUMC Project. The SUMC Project sponsors and SUMC Project arborist, to he retained by the SUMC Project sponsors, shall coordinate with the City Urban Forester to determine the amount of bonding required to guarantee the protection and/or replacement of the regulated trees on the site during construction and within five years after occupancy. The SUMC Project sponsors shall bond for 150 percent of the value for the relocated trees, and 50 percent of the value of the remaining trees to be protected during construction (as identified in the revised and fmal approved Tree Protection Report). The SUMC Project sponsors shall provide an appraisal of the trees with the proposed level of bonding in a tree value table to be reviewed and accepted by the Director of Planning and Community Environment with the description of each tree by number. value, and total combined value of all the trees to be retained. A return of the guarantee shall be subject to an annual followed by a fmal tree assessment report on all the relocated and retained trees from the SUMC Project arborist, as approved by the City Urban Forester. five years following final inspection for occupancy, to the satisfaction of the Director of the Planning and Community Environment Department. BR-4.5 Provide Optimum Tree Replacement for Loss of Publicly-Owned Trees Regulated Tree Category. There are many publicly owned trees growing in the right-of-way along various frontages (Welch Road, Pasteur Drive, Quarry Road, Sand Hill Road, etc.). S=Significant SU = Significant Unavoidable Stanford University Medical Center Facilities Renev.·al and Replacement Draft EIR -Summary Impact Significance With Mitigation S-71 26 S-72 Impacts Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation Mitigation Measures These trees provide an important visual and aesthetic value to the streetscape and represent a significant investment from years of public resources to maintain them. As mitigation to offset the net benefits loss from removal of mature trees, and to minimize the future years to achieve parity with visual and infrastructure service benefits (C02 reduction, extended asphalt life, water runoff management, etc.) cuo-ently provided by the trees, the new public trees on all roadway frontages shall be provided with best practices design and materials, including, but not limited to, the following elements: • Consistency with the City of Palo Alto Public Works Department Street Tree Management Plan, in consultation with Canopy, InC.26 • Provide adequate room for natural tree canopy growth and adequate root growing volume. For large trees, a target goal of 1,200 cubic feet of soil shall be used. • For pedestrian and roadway areas that are to include tree planting or adjacent to existing trees to be retained, utilize City-approved best management practices for sustainability products, such as permeable ADA sidewalk surfaces, Silva Cell base support planters, engineered soil mix base, and other advantage methods. bnpact Significance With Mitigation Canopy, Inc. is a non-profit organization that advises the City with regards to public trees. The City typically interfaces between applicants and the Canopy, Inc., hut it is recommended that the SUMC Project sponsors consult with Canopy, Inc. as well. NI = No Impact LTS = Less-than-Significant S = Significant SU= Significant Unavoidable StOliford University Medical Center Facilities Renewal and Replacement Draft EIR -SummaJY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts BR-S. Conflict with any Applicable Habitat Conservation Plan or Natural Community Conservation Plan. The SUMC Project would have no impact on any applicable Habitat Conservation Plan or Natural Community Conservation Plan. BR-6. Cumulative Impacts on Special-Status Wildlife Resources. The SUMC Project, in combination with other foreseeable development, would have a less-than-significant impact on Special-Status Plant Resources. BR-7. Cumulative Loss of Riparian or Other Sensitive Habitats, Including Wetlands as Defined by Section 404 of the Clean Water Act. Cumulative impacts on riparian or other sensitive habitats could be significant. However, the SUMC Project's contribution to the cumulative impact would be less than cumulatively considerable. BR-8. Cumulative Interference with the Movement of Any Native Resident or Migratory Fish or Wildlife Species or With Established Native Resident or Migratory Wildlife Corridors, or Use of Native Wildlife Nursery Sites. Cumulative interference with movement of resident or migratory species or with established migratory corridors could be significant. However, the SUMC Project's contribution to the cumulative impact would be less than cumulatively considerable. Impact Significance Without Mitigation NI LTS LTS LTS NI = No Impact LTS = Less-than-Significant Mitigation Measures BR-4.6 Implement Minor Site Modifications to Preserve Biologically and Aesthetically Significant Protected Trees. The SUMC Project sponsors shall design and implement modifications to building design, hardscape, and landscape to incorporate the below and above ground area needed to preserve as many biologically and aesthetically significant Protected Trees as possible. None required. None required. None required. None required. S=Significant SU= Significant Un.avoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Impact Significance With Mitigation N/A N/A N/A N/A S-73 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts BR-9. Cumulative Impacts on Protected Tree as defined by the City of Palo Alto's Tree Preservation Ordinance (Municipal Code Section 8.10). Cumulative impacts 011 Protected Trees would be significant. Because the SUMC Project would result in the loss of Protected Trees, the SUMC Project's contribution would cumulatively considerable. GS 1. Exposure to Seismic-Related Hazards. The SUMC Project would have a less-than-significant potential to expose people or structures to substantial adverse effects, including the risk of loss, injury, or death involving rupture of a known earthquake fault, strong seismic groundshaking, seismic­ related ground failure (including liquefaction). landslides, expansive soil, or major geologic hazards that cannot be mitigated through the use of standard engineering design and seismic safety techniques. GS 2. Exposure to Other Geotechnical Hazards. The SUMC Project would have a less-than-significant potential to be located on geologic units or on soil that is unstable, or that would become unstable as a result of the project and potentially result in on-or off-site landslide, lateral spreading, subsidence, liquefaction, or collapse. GS 3. Cause Substantial Erosion or Siltation. The SUMC Project would have a less-than-significant potential to cause substantial erosion or siltation. Impact Significance Without Mitigation S LTS LTS LTS NI = No Impact LTS = Less-than-Significant S-74 Mitigation Measures MITIGATION MEASURES. Mitigation Measures BR-4.1 through BR-4.6 would reduce the SUMC Project's contribution to cumulative impacts on Protected Trees. However, removal of some Protected Trees, including those identified by the City as being biologkally and aesthetically significant Protected Trees, would be unavoidable. As such, the contribution of the SUMC Project to cumulative Protected Tree removal would remain cumulatively considerable. None required. None required. None required. S=Significant SU= Significant Unavoidable Impact Significance With Mitigation SU N/A N/A N/A StOl!ford University Medical Center Facilities Renewal and Replacement Draft EIR -SummalY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts GS-4. Cumulative Exposure to Substantial Erosion or Siltation. The SUMC Project, in combination with other foreseeable development in the San Francisquito Creek Watershed, would not substantially increase erosion or siltation because of State, federal, and local runotI and erosion prevention requirements. As a result, the cumulative impact would be less than significant. HW-l. Flood Risk and Flood Flows. The SUMC Project would have no impact on flood risk or flood flows. HW-2. Groundwater Recharge and Local Water Table. The SUMC Project would have a less-than-significant impact on groundwater recharge and the local groundwater table level. HW-3. Groundwater Quality. The SUMC Project could have a significant impact on groundwater quality during construction. Impact Significance Without Mitigation LTS NI LTS S NI = No Impact LTS = Less-than-Significant Mitigation Measures None required. None required. None required. MrnGATlON MEASURE. Mitigation Measure HW-3.1, below, would reduce the SUMC Project's impact on groundwater quality to a less-than­ significant level. HW-3.! Develop a Work Plan for any Unknown Contaminated Sites. During construction, if suspected contaminated soil, undocumented underground tanks, hazardous materials pipelines. or other evidence of potential hazardous materials are discovered, construction activities shall cease and the SUMC Project sponsors shall prepare a workplan to determine the potential risk to human and ecological health. The workplan shall be prepared by a Registered Environmental Assessor and in compliance with the Department of Toxic Substances Control (DTSC) guidelines and the National Oil and Hazardous S= Significam SU= Significant Unavoidable Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary hnpact Significance With Mitigation N/A N/A N/A LTS S-75 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HW-4. Stormwater Runoff and Erosion. The SUMC Project would have a less-than-significant impact on stormwater runoff and erosion. HW-5. Flooding and Stormwater Conveyance Capacity. The SUMC Project would have a less-than-significant impact on flooding and storm water conveyance capacity. HW-6. Streambank Instability. The SUMC Project would have a less-than-significant impact on streambank instability. Impact Significance Without Mitigation LTS LTS LTS NI = No Impact LTS = Less-than-Significant S-76 Mitigation Measures Substances Contingency Plan (the "National Contingency Plan" [NCP)). The SUMC Project sponsors, or their representative, shall be responsible for submitting the workplan for the DTSC's review and approval prior to implementing field activities. The workplan must include all information necessary for implementing Held work. The workplan shall include a Site Safety Plan (SSP) and a Sampling Work Plan (SWP). The SSP must be submitted to the DTSC in conjunction with the submittal of the SWP. The objective of the SSP is to ensure protection of the investigative team as well as the general public during sampling activities. If risk to human or ecological health is identified, the SUMC Project sponsors shall prepare and implement a Removal Action Workplan (SB 1706 Stats. 1994, Chapter 441) (non-emergency removal action or remedial action ata hazardous substance release site which is projected to cost less than $1,000.000) that is consistent with the NCP. None required. None required. None required. S=Significant SU= Significant Unavoidable Impact Significance With Mitigation N/A N/A N/A Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HW-7. Degradation of Surface Water Quality. The SUMC Project would have. a less-than-significant impact on degradation of surface water quality. HW-S. Dam Failure Inundation. TIle SUMC Project would have a less-than-significant impact regarding dam failure inundation. HW-9. Violation of Any Water Quality Standards or Waste Discharge Requirements (WDRs). The SUMC Project would have a less-than-significant impact regarding water quality standards or WDRs. HW-IO. Cumulative Groundwater Recharge and Local Water Table. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less­ than-significant cumulative considerable impact on groundwater recharge and the local groundwater table. HW-U. Cumulative Groundwater Quality Impacts. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less-than­ significant cumulative impact on groundwater quality. HW-12. Cumulative Stonnwater Runoff and Erosion. The SUMe Project, ill combination with reasonably foreseeable probable future development, would have a less-than­ significant cumulative impact on stormwater runoff and erosioIl. Impact Significance Without Mitigation LTS LTS LTS LTS LTS LTS NI = No Impact LTS = Less-than-Significant None required. None required. None required. None required. None required. None required. S= Significant Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Mitigation Measures SU= Significant Unavoidable Impact Significance With Mitigation N/A N/A N/A N/A N/A N/A S-77 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HW-13. Cumulative Flooding and Stormwater Conveyance. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less­ than-significant cumulative impact on stonnwater runoff and erosion. HW-14. Streambank Instability. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less-than-significant cumulative impact on streambank instability. HW-lS. Degradation of Surface Water Quality. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less-than-significant cumulative impact on degradation of surface water quality. HW-16. Dam Failure Inundation. 'The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less-than-significant cumulative impact regarding dam failure inundation. HW-17. Violation of Any Water Quality Standards or Waste Discharge Requirements (WDRs). The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less-than-significant cumulative impact on violation of water quality standards and WDRs. Impact Significance Without Mitigation LTS LTS -LTS LTS LTS NI = No Impact LTS = Less-than-Significant S-78 None required. None required. None required. None required. None required. S=Significant Mitigation Measures SU= Significant Unavoidable hnpact Significance With Mitigation N/A N/A N/A N/A N/A Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummaJY Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HM-l. Exposure from Hazardous Materials Use, Handling, and Disposal. The SUMC Project would not substantially increase exposure from hazardous materials use, handling. and disposal during operation. HM-2. Demolition and Construction-Related Hazardous Materials Disturbance. The SUMC Project could release hazardous materials in existing buildings. Impact Significance Without Mitigation LTS S NI = No Impact LTS = Less-than-SignificalU Mitigation Measures None required. MITIGATION MEASURE. Implementation of the mitigation measure below would reduce impacts from exposure to asbestos containing materials to a less-than-significant level at the SUMC Sites by ensuring that all asbestos containing materials are identified and removed prior to structural modification and/or demolition. HM-2.1 Conduct Asbestos Sun)ey at the SUMC Sites. Prior to building renovation and/or demolition, an asbestos survey shall be performed on all areas of the building anticipated to be demolished and/or renovated. This survey shall be performed by a licensed asbestos abatement contractor. In the event that asbestos is identified in the buildings proposed to be demolished and/or renovated, all asbestos containing materials shall be removed and appropriately disposed of by a licensed asbestos abatement contractor. A site health and safety plan, to ensure worker safety, in compliance with OSHA requirements (8 CCR 5208) shan be developed by the SUMC Project sponsors and in place prior to commencing renovation or demolition work on portions of buildings containing asbestos. S = Significant SU= Significant Unavoidable StaJ~tord University Medical Center Facilities Renel'.·al and Replacement Draft ElR -Summary bnpact Significance With Mitigation N/A LTS S-79 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HM-3. Exposure to Contaminated Soil and/or Groundwater During Construction. The SUMC Project could expose construction persOlmel and public to existing contaminated groundwater and/or soil. Impact Significance Without Mitigation S NI = No Impact LTS = Less-than-Significant S-80 Mitigation Measures MITIGATION MEASURES. With implementation of Mitigation Measure HM-3.1 through HM-3.4, below, the significant impact on construction personnel and the public due to exposure to contaminated soil and/or groundwater at the SUMC Sites would be reduced to less-than-significant levels. In addition, Mitigation Measure HW-3.1 in Section 3.11, Hydrology, would require the SUMC Project sponsors to develop a work plan for any unknown contaminated site, which would further reduce the imp~cts to less than significant. Mitigation Measure HM-3.4 would requi.re specification of measures to prevent hazards from any remediation itself. As such, these would be less-than-significant impacts from any remediati.on. HM-3.1 Perfoml a Phase II ESAjor the 701 Welch Site. A Phase II ESA shall be performed at 701 Welsh Site Building B. The Phase II ESA shall include sampling and analysis of soil, groundwater, wastewater. and residues on surfaces such as laboratories countertops, fume hoods, sinks, sumps, floors, and drain lines. The County DEH and P AFD shall be notified by the Project sponsors if contamination is discovered. If contamination is discovered, the SUMC Project sponsors shall prepare a site remediation assessment that (a) specifies measures to protect workers and the public from exposure to potential site hazards and (b) certifies that the proposed remediation measures would clean up contaminants, dispose of the wastes, and protect public health in accordance with federal, State, and local requirements. Site excavation activities shall not proceed lmtil the site remediation has been approved by the County DEH and implemented by the SUMC Project sponsors. Additionally, the Site Remediation Assessment shall be subject to review and approval by the San Francisco Bay RWQCB. All appropriate agencies shall be notified. S = Significant SU= Significant Unavoidable Impact Significance With Mitigation LTS Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -SummalY Impacts NI = No Impact Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact Significance Without Mitigation LTS = Less-than-Significant Mitigation Measures HM-3.2 Excavate Contaminated Soil/rom the 703 Welch Site. For the 4- to 9-square-foot area near every discharge point from the building. soil samples shall be performed and contaminated soil excavated, removed, and transported to an approved disposal facility in compliance with OSHA requirements. The County DEH and the PAFD shall be notified by the SUMC Project sponsors if contamination is encountered during construction. HM-3.3 Conduct a Soil Vapor Program at the Hoover Pavilion Site. A qualified consultant, under the SUMC Project sponsors' direction, shall undertake the following activities: • Remove all buried underground storage tanks from the property after sheds and storage buildings on the Hoover Pavilion Site have been demolished; • To the extent necessary, additional soil sampling shall be collected to determine health risks and to develop disposal criteria; • If warranted based on soil sampling, a human health risk assessment shall be prepared and implemented to detennine potential for impacts on construction workers as well as to develop measures to ensure it is safe to redevelop the Hoover Pavilion Site within engineering controls (e.g., SVE or vapor barriers); and • To the extent required based upon the results of soil sampling and the results of a health risk assessment (if applicable), a Site Health and Safety Plan to ensure worker safety in compliance with OSHA requirements shall be developed by the Project sponsors, and in places prior to commencing work on any contaminated site. S=Significant SU = Significant Unavoidable Stal~ford University Medical Center Facilities Renl!l4'al and Replacement Draft EIR -Summary Impact Significance With Mitigation 8-81 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HM-4. Hazardous Waste Generation and Disposal Resulting in Increased Exposure Risk. The SUMC Project would not substantially increase exposure risk related to hazardous waste generation. HM-5. Emit Hazardous Emissions or Handle Hazardous Materials Within One-Quarter Mile of a School. The SUMC Project would not emit or handle hazardous materials within one-quarter mile of school. HM-6. Construct a School on a Property that is Subject to Hazards from Hazardous Materials Contamination, Emissions or Accidental Release. The SUMC Project would not construct a school that is subject to hazards from hazardous materials contamination, emissions or accidental release. Impact Significance Without Mitigation LTS LTS NI NI = No Impact LTS = Less-than-Significant S-82 Mitigation Measures The SUMC Project sponsors shall cooperate with the County DEH to proceed with closure of the Hoover Pavilion Site. HM-3.4 Develop a Site Management Plan for the Hoover Pavilion Site. The SUMC Project sponsors shall prepare a site remediation assessment that (a) specifies measures to protect workers and the public from exposure to potential site hazards, including hazards from remediation itself, and (b) certifies that the proposed remediation measures would clean up contaminants, dispose of the wastes, and protect public health in accordance with federal, State. and local requirements. Site excavation activities shall not proceed until the site remediation has been approved by the County DEH and implemented by the SUMC Project sponsors. Additionally, the Site Remediation Assessment shall be subject to review and approval by the San Francisco Bay RWQCB. All appropriate agencies shall be notified. None required. None required. None required. S = Significant . SU= Significant Unavoidable Impact Significance With Mitigation N/A N/A N/A Stanford Ulliversity Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impact .. HM-7. Occur on a Site Included on the Cortese List, a List of Hazardous Materials Sites. The SUMC Project would result in construction of facilities on a site included on the Cortese List. HM-8. Wildland Fire Risk. The SUMC Project would not expose people or structures to a significant risk of loss, injury, or death involving wildland fires. HM-9. Occur on a Site Located Within an Airport Land Use Plan or Within Two Miles of a Public Airport, and Result in a Safety Hazard. The SUMC Project would not be located within an Airport Land Use Plan or within 2 miles of a Public Airport. HM-lO. Impainnent of Emergency Plans. The SUMC Project could impair implementation or physically interfere with an adopted emergency response or evacuation plan. Impact Significance Without Mitigation S NI NI S JIll = No Impact LTS = Less-than-Significant Mitigation Measures MITIGATION MEASURES. Implementation of Mitigation Measures HM-3.3 and HM-3.4, which involve the implementation of a soil vapor program and development of a site management plan, would reduce the potential for exposure to hazardous materials at the Hoover Pavilion Site to less-than­ significant levels. Additionally, compliance with current federal, State and local regulations would help prevent any further exposure to hazardous materials. None required. None required. MITIGATION MEASURES. Mitigation Measure HM-lO.l requires advance coordination with the City of Palo Alto on construction routes or roadway closures. This measure, together with Mitigation Measures TR-l.l, TR-l.4 through TR-1.6, and TR-1.8, which all involve construction-period traffic controls, would reduce the significant construction-period impacts to a less-than-significant level. Mitigation Measure TR-9.1, would involve the installation of emergency vehicle traffic signal priority (OptiCom) at all intersections significantly impacted by the SUMC Project. Mitigation Measure TR-9.1 would reduce impacts on emergency access during operation. Implementation of these measures would reduce the SUMC Project's impact to emergency evacuation and response plans to a less-than­ significant level. S=Significant SU= Significant Unavoidable Slaf!ford University Medical Center Facilities Renev.·al and Replacement Draft EIR -Summary Impact Significance With Mitigation LTS N/A N/A LTS S-83 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts HM-ll. Cumulative Handling, Storage. Disposal, and Transport of Hazardous Materials. Cumulative development would increase handling, storage, disposal, and transport within the SUMC Sites and adjacent areas. However, cumulative development would be subject to applicable federal, State. and local regulations that would govern these activities. As a result, the cumulative impact would be less than significant. HM-12. Cumulative Disturbance of Hazardous Materials from Construction. The SUMC Project and adjacent development could result in cumulative release of hazardous materials during construction. a significant cumulative impact. The SUMC Project's contribution to the cumulative inlpact would be considerable. HM-13. Cumulative Exposure to Contaminated Soil and/or Groundwater, and from Cortese List Sites. The SUMC Project and adjacent development could result in cumulative disturbance of contaminated soils, release of hazardous materials during construction, a significant cumulative impact. Impact Significance Without Mitigation LTS S S NI = No Impact LTS = Less-than-Significam S-84 Mitigation Measures HM-IO.I Coordinate Constmetion Activities with the City of Palo Alto. The SUMC Project sponsors shall provide to the City planned construction routes, roadway closures, and access and closures schedules. This information shall be provided to the City at least two weeks in advance of the planned access and closures. The City shall coordinate this information among affected emergency service providers, including the City's Fire and Police Departments, and private ambulance services, so that alternative routes could be planned and announced prior to the scheduled access and closures, as deemed necessary by the City. None required. MITIGATION MEASURE. Mitigation Measure HM-2.1. involving measures to reduce exposure of persons to hazardous materials (such as asbestos), would reduce the SUMC Project's contribution to a less-than-significant level MITIGATION MEASURES. Mitigation MeasUre HM-3.2, which involves remediation of known site contamination at the 703 Welch Road site, would reduce the SUMC Project's contribution to the cumulative impact to less than considerable. Also, Mitigation Measures I-IM~3.1, HM-3.3, and HM- 3.4, involving investigations at other SUMC areas and preparation of the S=Signijicam SU= Signijicant Unavoidable Impact Significance With Mitigation N/A LTS LTS Stariford University Medical Center Facilities Renewal and Replacement Draft ElR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts The SUMC Project's contribution to the cumulative impact would be considerable. HM-14. Cumulative Exposure of Schools to Hazardous Materials and Waste. The SUMC Project, in combination with reasonably foreseeable probable future development, would have a less than cumulatively considerable impact on exposure of schools to hazardous materials. HM-15. Cumulative Impairment of Emergency Plans. Cumulative development could impair implementation or physically interfere with an adopted emergency response or evacuation plan. The SUMC Project's contribution to the cumulative impact would be considerable. PH-I. Population Growth. The SUMC Project would increase on-site employment and visitors and thus indirectly induce housing demand and population growth; however, the percentage of regional housing demand resulting from the SUMC Project would be relatively small in comparison with projected housing growth in the region, and would comprise a less-than-significant environmental impact. PH-2. Displacement of Existing Housing or Residents. The SUMC Project would not displace existing housing or residents because the SUMC Project would involve infill of currently developed sites that do not contain housing. Thus, the SUMC Project would result in no impact with respect to displacement of housing or residents. Impact Significance Without Mitigation LTS S LTS NI NI = No Impact LTS = Less-than-Significant Mitigation Measures Site Management Plan for remediation activities, would further ensure that any other risks associated with the SUMC Project would be less than cumulatively considerable. None required. MITIGATION MEASURES. Mitigation Measures HM-lO.l, above, and TR-l.l, TR-l.4 through TR-1.6, and TR-1.8 would reduce the SUMC Project's contribution to cumulative impacts on emergency evacuation and response plans to less than cumulatively considerable. None required. None required. S= Significant SU = Significant Unavoidable Stanford University Medical Center Facilities Reni!l"-'al and Replacement Draft EJR -Summary Impact Significance With Mitigation N/A LTS N/A N/A S-85 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts PH-3. Impacts on Jobs to Employed Residents Ratio. The SUMC Project would have an adverse impact on the City's jobs to employed residents ratio because it would exceed the existing Comprehensive Plan and zoning allowances for the SUMC Sites and thus require amendment to the Comprehensive Plan and rezoning, and it would increase the City's jobs to employed residents ratio by more than 0.01. However, this impact is not, itself, an environmental impact. This impact will result in secondary environmental inlpacts relating to additional commute traffic, including the significant and unavoidable impacts on air quality and climate change, as identified in Sections 3.5 and 3.6. The present analysis of impacts to the "jobs to employed residents" ratio is presented for informational purposes, and for the purpose of identifying additional mitigation measures for those identified impacts. Impact Significance Without Mitigation N/A NI = No Impact LTS = Less-than-Signijicant S-86 Mitigation Measures MITIGATION MEASURE. Implementation of Mitigation Measure PH-3.1 would reduce the impact on the City's jobs to employed residents ratio; however, such implementation would not fully avoid the SUMC Project's impact on the jobs to employed residents ratio because (1) the measures would not guarantee provision of housing units to cover the demand from the 1,052 households (or 8 percent thereof), and (2) due to the various factors that people consider in choosing where to live, it cannot be ascertained that the 1,810 workers would choose to live in Palo Alto. Due to the high concentration of jobs in Palo Alto, it is possible that a strong affordable housing program would result in reduced traffic congestion, vehicle miles traveled, and greenhouse gas emissions. Implementation of Mitigation Measure PH-3.1 is not directly required in order to mitigate a significant environmental impact, but rather should be considered as possible additional mitigation for Impacts AQ-2, AQ-7, CC-l, and CC-2, as discussed in Section 3.5, Air Quality, and Section 3.6, Climate Change, of this EIR. However, it should be stressed that these measures are presented here only in conceptual tenDs, and the City may find that some or all of them are not feasible for various legal, practical, or other reasons. As such, Mitigation Measure PH-3.1 is presented for informational purposes, and to ensure that all possible options for mitigation of these inlpacts are adequately considered. PH-3.I Reduce the Impacts on the Jobs to Employed Residents Ratio. In order to reduce tlle SUMC Project's impacts on the City'S jobs to employed residents ratio, one or more of the following measures shall be implemented by both the City and the SUMC Project sponsors: • The City shall explore amending the Zoning Code to permit more residential uses, particularly multifamily residential use; S=Signijicant SU= Signijicant Unavoidable Impact Significance With Mitigation N/A Stanford University Medical Center Facilities Renewal and Replacement Draft EIR -Summmy Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts PS-l. Impacts Related to Fire Protection and Emergency Medical Facilities. The SUMC Project would require an increased level of fire and emergency services. However, the increased level of fire and emergency services would not be large enough to trigger the need for construction of new facilities, which could adversely affect the physical environment. Impacts would be less than significant. Impact Significance Without Mitigation LTS NI = No Impact LTS = Less-than-Signijicant Mitigation Measures • The SUMC Project sponsors shall ensure that a specified number of housing units in the County shall be dedicated to SUMC employees; • The City shall amend the Zoning Code to remove the hospital exemption from payment of the affordable housing fee; • The City shall impose an additional ad hoc housing fee on development to ensure development of required affordable housing. The amount of the fee shall be based on the cost of the additional affordable housing units induced by the SUMC Project as well as the cost of the General Fund subsidy contribution to the existing housing impact fee; andlor • The City shall provide an inclusionary housing requirement in the newly created Hospital District. The requirement shall provide a number of options for development of additional housing with an emphasis on affordable housing. None required. S=Signijicant SU= Significant Unavoidable StaJ~ford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary hnpact Significance With Mitigation N/A S-87 Table S-4 SUMC Project Summary of Impacts and Mitigation Measures . Impacts PS-2. Impacts from Police Protection Facilities. The SUMC Project would require an increased level of police services. However, rhe increased level of police services would not be large enough to trigger the need for construction of new facilities, which could adversely affect the physical environment. Impacts. would be less than significant. PS-3. Impacts Related to School Facilities. An increase in students. which would require school expansions, would result as a tertiary impact of the SUMC Project, since increased employment from the SUMC Project could induce additional housing units within the City. Both the SUMC Project and induced housing projects would be subject to SB 50 School Impact Fees, which would mitigate impacts to less than significant. . PS-4. Impacts Related to Construction of New or Altered Parks and Recreation Facilities. The SUMC Project would not result in the construction or expansion of new parks or fields, which would in tum result in adverse environmental impacts. The SUMC Project would be required to pay a City Community Facility Fee, which would be used to fund new parks or an alteration to an existing park, and would mitigate impacts to less than significant. PS-5. Deterioration of Park and Recreation Facilities. Increased recreational demand from SUMC Project employees could accelerate the physical deterioration of the City's parks and fields. The SUMC Project would be required to pay a City Community Facility Fee, which reduce or avoid any such deterioration, and would mitigate impacts to less than significant. Impact Significance Without Mitigation LTS LTS LTS LTS NI = No Impact LTS = Less-than-Significant 8-88 Mitigation Measures None required. None required. None required. None required. S=Significant SU= Significant Unavoidable Impact Significance With Mitigation N/A N/A N/A N/A Stanford University Medical Center Facilities Renewal and Replacement Draft ElR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts PS-6. Cumulative Fire Protection Demand and Emergency Medical Facilities. Cwnulative growth would increase demand for fire protection and emergency response services within the PAFD's service area; however, no new PAFD facilities would need to be constructed. Cumulative impacts would be less than significant. PS-7. Cwnulative Police Protection Demand. Cumulative growth in the City could necessitate construction of new or expanded police facilities in order to meet increased demand for services. Construction of new or expanded police facilities could result in significant environmental impacts. As such, cumulative impacts related to police service could be significant. However the SUMC Project's contribution to the cumulative need for new or expanded police facilities would be less than cumulatively considerable. PS-8. Cumulative School Demand. Cumulative development in the City can be expected to necessitate expansion of school facilities, which could have adverse physical environmental. impacts. This cumulative impact is conservatively assumed to be significant, although the SUMC Project's contribution to this cwnulative impact would be less than cwnulatively considerable. PS-9 Cumulative Demand for Parks and Recreation Facilities, and for New Parks. Cumulative impacts related to park deterioration would be less than significant due to the City's Community Facility Fee. Cwnulative growth in the City would necessitate acquisition or development of new parldands, which could result in significant environmental impacts; however, the contribution of the SUMC Project to Impact Significance Without Mitigation LTS LTS LTS LTS NI = No Impact LTS = Less-than-Significant None required. None required. None required. None required. S=Significant Stanford University Medical Center Facilities Renelt·al and Replacement Draft EIR -Summary Mitigation Measures SU= Significant Unavoidable Impact Significance. With Mitigation N/A N/A N/A N/A S-89 Table S-4 SUMe Project Summary of Impacts and Mitigation Measures Impacts impact would be less than cumulatively Water Demand. The SUMC Project would result in a less-than-significant water supply impact because it would not result in the need for new or expanded entitlements for water supplies, and would not require expansion or construction of water facilities. UT-2. Wastewater Generation. The SUMC Project would result in a less-than-significant wastewater impact because it would not exceed treatment requirements of the RWQCB, would not significantly increase use of the wastewater disposal system, and would not require expansion or construction of wastewater collection or treatment facilities. UT-3. Stonnwater Generation. The SUMC Project would have a less-than-significant impact related to stormwater collection system capacity because it would not significantly increase use of the stonnwater collection system, and would not require expansion or construction of new stonnwater facilities. UTA. Solid Waste Generation. The SUMC Project would result in a less-than-significant solid waste impact because it would be served by landfills with sufficient capacity and, thus, would not contribute to the need to expand existing or construct new solid waste disposal facilities. Impact Significance Without Mitigation LTS LTS LTS NI = No Impact LTS = Less-than-Signijicant S-90 Mitigation Measures None required. None required. None required. S=Signijiccmt SU = Signijiccmt Unavoidable hnpact Significance With Mitigation N/A N/A N/A Staliford University Medical Center Facilities Renewal and Replacement Draft EIR -Summary Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts UT-5. Energy Demand. Although the SUMC Project is an urban infill project and would not require the expansion of natural gas facilities and would use existing utility facilities, it may require the installation of near-site electrical facilities and natural gas pipelines to accommodate the projected additional demand. However, this installation is included in the SUMC Project and no additional off-site construction relating to electrical and natural igas facilities would occur. Therefore, the SUMC Project would have a less-than-significant impact related to the construction of energy facilities. UT-6. Cumulative Water Impacts. Since the City has sufficient water supply to accommodate water demands for cumulative development up to 2025, new or expanded entitlements for water supplies are not necessary. Therefore, cumulative development would have a less-than-significant cumulative impact related to water supply. UT-7. Cumulative Wastewater Impacts. Since the RWQCP has sufficient capacity to accommodate wastewater generated by cumulative development up to 2025, implementation of major facility and infrastructure improvements would not be necessary. In addition, general replacement and maintenance of old wastewater facilities is expected and would comply with applicable environmental regulations. Therefore, cumulative development would not have a significant cumulative impact related to wastewater. Impact Significance Without Mitigation LTS LTS LTS UT-S. Cumulative Stonnwater Generation. Cumulative LTS development in the City of Palo Alto and a1" St", f" J l!ni versit n co 1 1 • Mitigation Measures None required. None required. None required. NoneL~auiirr~edd------------------ Impact Significance With Mitigation N/A N/A N/A Table S-4 SUMC Project Summary of Impacts and Mitigation Measures Impacts replacement or maintenance of storm drain facilities. However, general replacement and maintenance of storm drain facilities is included in City plans and would comply with applicable environmental regulations. Therefore, cumulative development would have a less-than-significant cumulative impact related to the capacity or deterioration of storm drain facilities. UT-9. Cumulative Solid Waste Impacts. Cumulative development would generate solid waste within the permitted capacity of the SMART Station and Kirby Canyon Landfill. Cumulative development would not result in substantial deterioration of solid waste facilities. As such, cumulative impacts related to solid waste generation would be less than significant. UT-lO. Cumulative Energy Demand. Cumulative development in the City of Palo Alto would consume additional energy and, therefore, would increase the demand for energy. The City's electrical and natural gas facilities are projected to have adequate capacity to serve the City's increased demand for energy. The increased level of energy demand may trigger the need for the replacement or maintenance of energy facilities. However, general replacement and maintenance of energy facilities is expected and would comply with applicable environmental regulations. Therefore, cumulative development would not have a significant cumulative impact related to energy demand and energy facilities. Impact Significance Without Mitigation LTS LTS NI = No Impact LTS = Less-than-Significant S-92 Mitigation Measures None required. None required. S=Significant SU= Significant Un.avoidable hnpact Significance With Mitigation N/A N/A Stanford University Medical Center Facilities Renewal an.d Replacement Draft EJR -Summal}'