City of Claremont Pomona College 2015 Campus Master Plan

Recirculated* Draft Environmental Impact Report SCH#2013101061

October 2015

* Any changes made to this Recirculated Draft EIR compared to the March 2015 Final EIR are shown in strikethrough and underline format. Sections of this EIR that have not been changed since availability of the March 2015 Final EIR are not included in this Recirculated Draft EIR. The March 2015 Final EIR is available from the City of Claremont.

Recirculated Draft Environmental Impact Report

Pomona College 2015 Campus Master Plan

Prepared by:

City of Claremont 207 Harvard Avenue Claremont, CA 91711 Contact: Belle Newman, Contract Planner 909-399-5470

Prepared with the assistance of:

Rincon Consultants, Inc. 180 North Ashwood Avenue Ventura, CA 93003 805-644-4455

October 2015

This report prepared on 50% recycled paper with 50% post-consumer content.

Pomona College 2015 Campus Master Plan EIR Table of Contents

Pomona College 2015 Campus Master Plan

Recirculated Draft Environmental Impact Report

Table of Contents1 Page

Executive Summary ...... ES-1

1.0 Introduction ...... 1-1 1.1 Environmental Impact Report Background ...... 1-1 1.2 Purpose and Legal Authority ...... 1-4 1.3 Scope and Content ...... 1-4 1.4 Type of EIR ...... 1-5 1.5 Lead, Responsible, and Trustee Agencies...... 1-5 1.6 Environmental Review Process ...... 1-6

2.0 Project Description ...... 2-1 2.1 Project Applicant ...... 2-1 2.2 Project Location ...... 2-1 2.3 Current Land Use and Regulatory Setting ...... 2-2 2.4 Project Characteristics...... 2-8 2.5 Project Objectives ...... 2-15 2.6 Required Discretionary Approvals ...... 2-15

4.0 Environmental Impact Analysis ...... 4-1 4.1 Aesthetics ...... 4.1-1 4.4 Cultural Resources ...... 4.4-1 4.13 Utilities and Service Systems ...... 4.13-1

6.0 Alternatives ...... 6-1 6.1 Alternative 1: No Project ...... 6-1 6.2 Alternative 2: Alternative Sites for Seaver Labs Expansion and New Museum of Art ...... 6-7 6.3 Alternative 3: No Changes to Thatcher Music Building or Seaver Labs, No New Museum of Art ...... 6-15 6.4 Alternative Sites ...... 6-21 6.5 Alternatives Considered, But Rejected ...... 6-22 6.6 Environmentally Superior Alternative...... 6-22

7.0 References and Preparers ...... 7-1 7.1 References and Bibliography ...... 7-1 7.2 Persons Contacted ...... 7-8

1 Sections of this EIR that have not been changed since availability of the March 2015 Final EIR are not included in this Recirculated Draft EIR. The March 2015 Final EIR is available from the City of Claremont.

City of Claremont i Pomona College 2015 Campus Master Plan EIR Table of Contents

7.3 List of Preparers...... 7-9

List of Figures

Figure 1-1 Environmental Review Process ...... 1-7 Figure 2-1 Regional Location ...... 2-3 Figure 2-2 Project Location ...... 2-4 Figure 2-3 Existing Campus ...... 2-5 Figure 2-4 Illustrative Master Plan ...... 2-9 Figure 4.1-1 1908 Hunt Master Plan ...... 4.1-2 Figure 4.1-21 1923 Pomona College, 1923 Master Plan ...... 4.1-3 Figure 4.1-32a Project Plan Area Photosgraphs ...... 4.1-6 Figure 4.1-32b Project Area Photosgraphs ...... 4.1-7 Figure 4.1-32c Project Area Photosgraphs ...... 4.1-8 Figure 4.1-43 Surrounding Uses Photosgraphs ...... 4.1-10 Figure 4.1-54 Scenic Vistas ...... 4.1-11 Figure 4.1-65 Changes in Arrangement of Built to Open Space ...... 4.1-20 Figure 4.1-76a Views Towards Mountains from Areas Where Selected Sites of New or Relocated Buildings Will Replace Parking Lots ...... 4.1-21 Figure 4.1-76b Views Towards Mountains from Areas Where Selected Sites of New or Relocated Buildings Will Replace Parking Lots ...... 4.1-22 Figure 4.1-7c Views Towards Mountains from Selected Sites of New or Relocated Buildings ...... 4.1-23 Figure 4.1-87 Examples of Buildings That Would Be Replaced Under Proposed Master Plan ...... 4.1-26 Figure 4.1-98 Illumination Survey Results ...... 4.1-36 Figure 4.4-1 Pomona College Historic District Boundaries ...... 4.4-16 Figure 4.5-1 Local Faults ...... 4.5-3 Figure 4.5-2 Potentially Active Regional Faults ...... 4.5-4 Figure 4.5-3 Earthquake-Induced Landslides and Liquefaction ...... 4.5-8 Figure 4.9-1 Project Area and Surrounding Land Use Designations ...... 4.9-3 Figure 4.9-2 Project Area and Surrounding Zoning Designations ...... 4.9-4 Figure 4.10-1 Impact Criteria for Project-Generated Noise ...... 4.10-10 Figure 4.12-1 Existing Roadway Conditions and Intersection Controls ...... 4.12-5 Figure 4.12-2 Project Trip Distribution Pattern ...... 4.12-11 Figure 4.12-3 Pomona College Pedestrian Safety Master Plan ...... 4.12-27 Figure 6-1 Alternative Site Location Map ...... 6-9

List of Tables

Table ES-1 Overview of Existing and Proposed Campus Conditions ...... ES-5 Table ES-2 Proposed Master Plan Facilities Projects ...... ES-6 Table ES-3 Summary of Environmental Impacts and Mitigation Measures ...... ES-8 Table 1-1 Scoping Comments Received ...... 1-1 Table 2-1 Overview of Existing and Proposed Campus Conditions ...... 2-13 Table 2-2 Proposed Master Plan Facilities Projects ...... 2-14 Table 3-1 Location and Description of Cumulative Projects...... 3-3 Table 4.2-1 Federal and State Ambient Air Quality Standards ...... 4.2-2

City of Claremont ii Pomona College 2015 Campus Master Plan EIR Table of Contents

Table 4.2-2 Ambient Air Quality Data ...... 4.2-4 Table 4.2-3 SCAQMD LSTs for Construction ...... 4.2-8 Table 4.2-4 Estimated Construction Maximum Daily Air Pollutant Emissions (lbs/day) ...... 4.2-10 Table 4.2-5 Long-Term Operational Emissions (lbs/day) ...... 4.2-12 Table 4.3-1 Special-Status Plant Species Occurring within the Vicinity of the Plan Area ...... 4.3-5 Table 4.3-2 Special-Status Wildlife Species Occurring within the Vicinity of the Plan Area ...... 4.3-7 Table 4.4-1 Pomona College Campus Buildings to be Altered, or Demolished, or Relocated ...... 4.4-14 Table 4.6-1 Estimated Construction Emissions of Greenhouse Gases ...... 4.6-13 Table 4.6-2 Estimated Annual Energy-Related Greenhouse Gas Emissions ...... 4.6-14 Table 4.6-3 Estimated Annual Solid Waste Greenhouse Gas Emissions ...... 4.6-14 Table 4.6-4 Estimated Greenhouse Gas Emissions from Water Use ...... 4.6-14 Table 4.6-5 Estimated Annual Mobile Emissions of Greenhouse Gases ...... 4.6-15 Table 4.6-6 Combined Annual Emissions of Greenhouse Gases ...... 4.6-16 Table 4.6-7 Master Plan Consistency with Applicable Climate Action Team Greenhouse Gas Emission Reduction Strategies 4.6-17 Table 4.6-8 Master Plan Consistency with Applicable Attorney General Greenhouse Gas Reduction Measures ...... 4.6-21 Table 4.6-9 Master Plan Consistency with Claremont Sustainable City Plan 4.6-23 Table 4.9-1 City of Claremont General Plan Policy Consistency ...... 4.9-11 Table 4.10-1 Land Use Compatibility for Noise Environments ...... 4.10-4 Table 4.10-2 Claremont Land Use/Noise Guidelines and Standards (Municipal Code) ...... 4.10-5 Table 4.10-3 Claremont Land Use/Noise Guidelines (General Plan) ...... 4.10-6 Table 4.10-4 Vibration-Related Building Damage Thresholds ...... 4.10-9 Table 4.10-5 Typical Construction Equipment Noise Levels ...... 4.10-12 Table 4.10-6 Typical Noise Levels at Construction Sites by Construction Phase 4.10-12 Table 4.10-7 Vibration Source Levels for Construction Equipment ...... 4.10-15 Table 4.10-8 Vibration Source Amplitudes for Construction Equipment ...... 4.10-17 Table 4.10-9 Traffic Volumes on Local Road Segments During AM Peak Hour 4.10-18 Table 4.11-1 2013-2014 CUSD School Enrollment ...... 4.11-2 Table 4.12-1 Level of Service Criteria for Intersections ...... 4.12-6 Table 4.12-2 Existing Intersection Peak Hour Levels of Service ...... 4.12-7 Table 4.12-3 Master Plan Trip Generation Rates and Forecast ...... 4.12-10 Table 4.12-4 Existing Plus Master Plan Intersection Peak Hour Levels of Service Summary ...... 4.12-15 Table 4.12-5 Mitigated Existing Plus Master Plan Intersection Peak Hour Levels of Service Summary ...... 4.12-17 Table 4.12-6 Year 2020 Cumulative Plus Master Plan Intersection Peak Hour Levels Of Service Summary...... 4.12-18

City of Claremont iii Pomona College 2015 Campus Master Plan EIR Table of Contents

Table 4.12-7 Year 2030 Cumulative Plus Master Plan Intersection Peak Hour Levels Of Service Summary ...... 4.12-21 Table 4.12-8 Year 2020 Cumulative Plus Master Plan Intersection Peak Hour Levels of Service Summary ...... 4.12-23 Table 4.12-9 Year 2030 Cumulative Plus Master Plan Intersection Peak Hour Levels of Service Summary ...... 4.12-24 Table 4.13-1 Current and Planned Water Supplies for the Claremont System (AFY) ...... 4.13-1 Table 4.13-2 Metropolitan Water Supply in Normal, Single and Multiple Dry Years (Thousands of Acre Feet) ...... 4.13-2 Table 4.13-3 TVMWD Water Supply in Average, Single-Dry and Multiple-Dry Years (Acre Feet) ...... 4.13-3 Table 4.13-4 Projected GSWC Claremont Normal Year Supply/ Demand Comparison (AFY) ...... 4.13-3 Table 4.13-5 GSWC Claremont Single/Multiple-Dry Year Supply/Demand Comparison (AFY)...... 4.13-3 Table 4.13-6 City of Claremont Per Capita Solid Waste Diversion Rates ...... 4.13-5 Table 4.13-7 Estimated Master Plan Water Demand ...... 4.13-10 Table 4.13-8 Estimated Wastewater Generation ...... 4.13-12 Table 4.13-9 Estimated Solid Waste Generation ...... 4.13-14 Table 5-1 Existing Annual Electricity Use ...... 5-7 Table 5-2 Existing Annual Natural Gas Use ...... 5-8 Table 5-3 Existing Annual Fuel Consumption ...... 5-8 Table 5-4 Proposed Annual Electricity Use ...... 5-9 Table 5-5 Proposed Annual Natural Gas Use ...... 5-9 Table 5-6 Proposed Annual Fuel Consumption ...... 5-10 Table 6-1 Differences in Gross Square Footage of Facilities Projects Under Proposed Master Plan and Alternative 3 ...... 6.16 Table 6-2 Comparison of Environmental Impacts of Alternatives ...... 6-23

Appendices Appendix A: Initial Study/NOP and NOP Comment Letters Appendix B: Air Quality and Greenhouse Gas Emissions Technical Data Appendix C: Historical Resources Technical Reports Appendix D: Land Use Conversion Study Appendix E: Noise Calculations Appendix F: Traffic Impact Study Appendix G: Sewer/Storm Drain/Water Layout Maps Appendix H: Comments Received After the Close of the Public Review Period of the Original Draft EIR and Before October 13, 2015 Appendix I: Pomona College 2015 Campus Master Plan, September 2015

City of Claremont iv Pomona College 2015 Campus Master Plan EIR Executive Summary

EXECUTIVE SUMMARY

The section summarizes the characteristics of the proposed Master Plan, the alternatives assessed in the EIR, and the environmental impacts, mitigation measures, and residual impacts associated with the implementation of the proposed Master Plan and cumulative development.

PROJECT SYNOPSIS

Project Applicant

Pomona College 101 N. College Way Claremont, California 91711

Project Location

The project area (“Plan Area” or “campus”) consists of the area covered by the proposed Pomona College 2015 Campus Master Plan, which includes the entirety of Pomona College’s current campus. The proposed Master Plan does not involve any expansion of Pomona College’s existing campus, or any off-campus components. Pomona College is one of The Claremont Colleges, which are located in the City of Claremont in the County of Los Angeles, California. The location of the Plan Area both regionally and locally is shown in figures 2-1 and 2-2.

The Plan Area consists of approximately 140 acres roughly bounded by First Street on the south, Eighth Street on the north, Harvard Avenue on the west, and Mills and Amherst avenues on the east.

Project Description

The proposed Pomona College 2015 Campus Master Plan (the “Master Plan”) provides guidance in planning and developing the Pomona College campus over a period of 15 years from the date of City approval of the Master Plan. The proposed Master Plan is supportive of the College’s 2007 Strategic Plan, and would implement the 2007 Strategic Plan through development of new, remodeled, and renovated buildings and land uses, while preserving and expanding landscape and open spaces. The College’s previous Master Plan was approved by the City in 2004 for a ten year period which ended in 2014. The City adopted a Mitigated Negative Declaration for this plan in 2004. The plan provided for new and renovated science buildings in the College's science precinct, revisions to campus parking, new and renovated residence halls, and other campus improvements. The plan was next amended in 2008, primarily to revise the parking plan for the campus. In 2012 the Master Plan was again amended to provide for the replacement rather than renovation of Lawry Hall, a student residence hall, and the construction of a new studio art building. As amended, the Master Plan provided for 564,045 square feet of new development. An Addendum to the Mitigated Negative Declaration was completed for the 2012 Master Plan revision and approved by the City in 2012.

City of Claremont ES-1 Pomona College 2015 Campus Master Plan EIR Executive Summary

The proposed Master Plan anticipates an increase in enrollment of 50 students, 30 new faculty and 30 new staff, a net increase of 26 beds in student residences for up to 1,560 beds, a net increase of 18 parking on-campus parking spaces, and a net increase of 205,400 square feet (sf) of on-campus buildings, which would bring the total structural square footage on campus to 2,055,400 and increase campus lot coverage from approximately 16% to approximately 18%. The Master Plan’s goals and associated recommendations to accomplish the programmatic needs of the College over the 15-year life of the Master Plan are listed below, and are identified by the same number or letter shown on Figure 2-4. Sequencing of these elements of the Master Plan would be based on the operational needs of the University and financial constraints and opportunities.

Facilities

 Complete the expansion and renewal of the science facilities 1: Complete reconstruction and expansion of Millikan Lab 11: Expand Seaver Laboratories  Renew and expand facilities for the arts 4: Reconstruct and expand Thatcher Music Building 4A: Renovate Rembrandt Hall and construct a new addition 5: Relocate and expand Construct new Museum of Art 5A: Relocate Renwick House, including demolition of rear structure 6: Renovate and expand Bridges Auditorium  Provide for expansion and identity of Student Affairs programs 2: Move Draper Center from the Smith Campus Center to 735 Dartmouth  Continue renewal and replacement of student residences for up to 1,560 beds from the current level of 1,534 beds, for a net increase of 26 beds 3: Construct Phase 2 of North Housing complex 8: Renovate and expand Wig Hall 12: Construct new Second Street Residence Hall  Renew Oldenborg International Center, promoting consolidation, identity and accessibility of International Center programs 7: Reconstruct and renovate Oldenborg International Center  Renew Rains Center, incorporating campus planning guidelines and sustainability standards 9: Renovate and reconstruct Rains Center  Provide for consolidation of certain administrative functions 10: Construct an Administrative Support Building on Eighth Street

Open Space and Pedestrian and Bicycle Circulation

 For safety, place “Bikes Stop” warning signs (marked on Figure 2-6 with red dots) and “Bikes Caution” warning signs (marked on Figure 2-6 with orange dots) at certain on-campus pedestrian walks/bikeways as they intersect City streets

City of Claremont ES-2 Pomona College 2015 Campus Master Plan EIR Executive Summary

 Complete historic pathways and recommend new pathways (shown with green dashed lines on Figure 2-6) and courtyards (shown as yellow areas on Figure 2-6) to improve connections and pedestrian safety, including potential new mid-block pedestrian crossings (shown with orange lettered circles on Figure 2-6) A: Millikan Lab: a new courtyard between Millikan Lab and Seeley Mudd Hall, with an improved pedestrian connection to Skyspace and the Lincoln and Edmunds Halls courtyard, and a new entry plaza and streetscape along College Avenue B: North Housing Phase 2: complete the garden/activity area and new streetscape along Sixth Street C: Thatcher Music Building: renew and expand Lyon Court, remove concrete mechanical equipment housing, construct a new pedestrian walkway and emergency/service corridor from Bonita Avenue to Fourth Street, and provide a clear continuation of the east-west pedestrian way through the site from LeBus Court to College Avenue D: Rains Center: extend the east-west pedestrian way that runs from the Stanley Academic Quadrangle through Smiley Hall to Rains Center. Create a suitable terminus at Rains Center. Create a courtyard on the southwest side of Rains Center and extend the formal landscape to College Way and the western side of Rains Center. Redevelop Draper Walk along the south side of Rains Center from College Way to Sophomore Walk. Provide transparency between the walkway and building activities, and improve connections from Draper Walk to the north courtyard at Bridges Auditorium E: Oldenborg International Center: new public plaza, entry courtyard, and gardens on the north side of the building and extension of the east-west pedestrian way from Sumner Hall to Studio Art Hall and the Wash F: Eighth Street Administration Building: new south entry courtyard G: West side of Bridges Auditorium: new Entry Plaza and College Way renewal H: Sumner Hall: a new guest arrival and parking court, including improved access from Sumner Hall to Memorial Court J: North side of Bridges Auditorium: new courtyard/plaza K: Hahn and Carnegie Halls: new landscaping in the courtyard space between the two buildings, and a new pedestrian pathway to the Stanley Academic Quadrangle L: The Wash: Renovation and restoration of the Wash, which would be limited to landscape maintenance, including removal of dead and downed trees and vegetation and their replacement in a manner consistent with existing landscaping M-U: Pedestrian Crossings: measures to be considered for pedestrian safety at these locations include adequate lighting, bulb-outs, accessible curb ramps, parking restrictions, pavement legends for pedestrians and advanced warning signs at the campus zones

City of Claremont ES-3 Pomona College 2015 Campus Master Plan EIR Executive Summary

Vehicular Circulation and Parking

 Remove or relocate parking lots to provide for new open space and program development. o Provide 20 spaces at a Kenyon House parking lot o Remove two parking spaces at Harrison Street for the construction of the new pedestrian way from the Stanley Academic Quadrangle to the Hahn/Carnegie courtyard o Parking space removal to accommodate pedestrian crossings will be determined with specific designs for those crossings  Improve interior campus roadways to provide better emergency and service access o The existing vehicular access along Second Street will serve as an access road for emergency access and service to the proposed Second Street Residence Hall and the existing Kenyon House and Pendleton Dance and Pool Center o The existing Second Street pedestrian way will serve as access for service and emergency vehicles for its full length, from College Avenue to Columbia Avenue

Sustainability

 The Master Plan guides the implementation of measures that most effectively promote economic, academic/social and environmental sustainability across the campus  The Master Plan promotes academic/social sustainability through open space and pedestrian way development and an increased but controlled density. These elements contribute to pedestrian safety, better opportunities for connections and interchanges, and improved program visibility and identity  The Master Plan furthers academic and social sustainability goals through additional and renovated on-campus student housing. The compact campus encourages social interaction and connectivity, encourages pedestrian and bicycle use on campus and reduces automobile trips  The Master Plan advances environmental sustainability through the reuse of previously developed sites, through the protection and expansion of the campus’s heritage landscape, and through provision for better on-site water management  The Master Plan realizes environmental and economic sustainability through campus-wide strategies for reductions in purchased energy, the leveraging of renewable resources, and infrastructure efficiencies. The Master Plan establishes a basis for campus-scale energy efficiency and carbon reduction through target Energy Utilization Indexes for new construction and renovations consistent with the College’s Climate Commitment goals for 2020 and 2050

It should be noted that project #1 listed above (complete reconstruction and expansion of Millikan Lab) has already been approved and is under construction. This project, which also included renovation of the Andrew Science Center, was approved on May 15, 2013 (separately

City of Claremont ES-4 Pomona College 2015 Campus Master Plan EIR Executive Summary

from the previous Master Plan documents discussed above), at which time the City’s Community Development Director determined that the project was categorically exempt from CEQA pursuant to Sections 15303 (New Construction or Conversion of Small Structures) and 15314 (Minor Alterations to Land) of the CEQA Guidelines because the project would upgrade two existing buildings while maintaining their existing purpose and capacities. The intent is to bring the buildings up to current standards for access, circulation, mechanical systems, storage, and teaching, not to increase the number of staff or students utilizing the buildings. Because this project has already been approved and found to be categorically exempt under CEQA, it is considered in this EIR to be part of the environmental baseline, not part of the proposed project.

Table ES-1 summarizes existing conditions within the Plan Area, as well as conditions that would result from implementation of the proposed Master Plan. Table ES-2 summarizes facilities projects to be carried out under the proposed Master Plan, providing details of proposed new facilities and changes to existing facilities, including structural square footage. As shown in these tables, the Master Plan would involve net increases of approximately 26 on- campus beds, 50 students, 30 faculty, 30 staff, 18 parking on-campus parking spaces, and 205,400 sf of building area. Campus lot coverage would increase from approximately 16% to approximately 18%. The Master Plan includes demolition of The Cottages, which consist of four residential buildings at the southeast corner of Bonita Avenue and College Avenue; the relocation, expansion, reconstruction, or renovation of nine 15 buildings; and construction of three new buildings. Table ES-1 Overview of Existing and Proposed Campus Conditions Existing Proposed Change

Land Area (approx. acres) 140 140 none

Lot Coverage 16% 18% 2%

Student Beds 1,534 1,560 26

Students 1,590 1,640 50

Faculty 192 222 30

Faculty Apartment Units 2 2 0

Student/Faculty Ratio 8.28:1 7.39:1 - 0.89:1

Staff 495 525 30

Campus Building Area (GSF1), 1,850,000 2,055,400 205,400 with parking structure

Campus Building Area (GSF1), without parking 1,538,000 1,743,400 205,400 structure

GSF1 Per Student 253 371 118

Parking Spaces 1,575 1,593 18

1 GSF = Gross Square Feet Sources: Pomona College 2015 Campus Master Plan, January 2015; Pomona College website, September 2013; personal correspondence, Andrea Ramella, Assistant Director Planning & Project Management Pomona College- Facilities and Campus Services, October 2013

City of Claremont ES-5 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-2 Proposed Master Plan Facilities Projects GSF Proposed Change Project Program Existing GSF Removed GSF GSF Construction 1 Millikan/Andrew Labs: Reconstruction and Millikan and Andrew: Millikan: Classrooms, labs, offices, renovation: Two floors and 61,200 45,900 planetarium, courtyard basement. New courtyard. 74,900 10,500 Duplicating is removed to Duplicating: Duplicating: accommodate an 3,200 3,200 expanded courtyard entry. 2 735 Dartmouth Renovation and addition: 2,300 0 2,300 0 Draper Center One floor and basement. 3 North Housing Phase 2: New construction: Lawry Court: Student residences, Two/three floors and 17,500 common space basement. Removal of 20,300 36,000 15,700 Lawry Court Residence Walton Commons: Hall and Walton 2,800 Commons. 4 Thatcher Music Thatcher: Reconstruction of two Building: Classrooms, 34,100 floors and basement of practice rooms, Thatcher Music Building. 42,300 48,000 5,700 studios, recital hall, band Montgomery Demolition of existing room, library Museum of Art: Montgomery Art Museum 8,200 of Art. 4A Rembrandt Hall Renovation and addition: Renovation Two floors and basement. and Addition: 17,300 8,300 18,000 700 Demolition of existing Classrooms, offices, Studio Art addition. studios 5 Museum of Art: New construction: Two Galleries, offices, floors and basement. classrooms Removal of Cottages, 4,400 4,400 40,000 35,600 relocation of Renwick House (including demolition of rear structure). 5A Renwick House Relocate Renwick House, Relocation 3,300 0 3,300 0 including demolition of rear structure. 6 Bridges Auditorium: Renovation and three floor Performance, studios, 59,700 0 85,000 25,300 addition. classrooms 7 Oldenborg International Reconstruction and Center: Residence hall, renovation: Two/three 78,600 0 106,000 27,400 dining, International floors and basement. Center 8 Wig Hall: Student Renovation and addition: residences 28,900 0 35,000 6,100 Two/three floors and basement. 9 Rains Center: Athletics Renovation and and recreation 82,300 0 90,000 7,700 reconstruction: Two floors and basement. 10 Eighth Street New construction: Two Administration floors and basement. 2,300 2,300 35,000 32,700 Building: Offices, Removal of 735 meeting and conference Dartmouth. 11 Seaver North and New construction: Two South: Classrooms, 0 0 8,000 8,000 floors and basement offices fronting College Avenue. 12 Second Street New construction: Residence Hall: Student Two/three floors and 0 0 30,000 30,000 residences, commons, basement. recreation Totals 611,500 406,100 402,800 126,700 205,400 608,200 Source: Pomona College 2015 Campus Master Plan, JanuarySeptember 2015

City of Claremont ES-6 Pomona College 2015 Campus Master Plan EIR Executive Summary

Project Objectives

The overarching objective of the proposed Master Plan is to serve as a guide for campus development, supportive of the College’s 2007 Strategic Plan, during the life of the Master Plan, defined as 15 years from the date of City approval. Within this overarching framework, the Master Plan is designed to achieve the following objectives:

 Implement programs contained within the College’s 2007 Strategic Plan through appropriate buildings, land uses, and development sites while protecting and expanding landscape and open spaces  Maintain flexibility to accommodate new or unforeseen opportunities  Clarify pedestrian and vehicular circulation patterns  Further the College’s commitment to sustainability and to reductions in energy consumption and greenhouse gas emissions  Build on the campus’s heritage of planning and stewardship, enriching the campus experience and upholding the College’s position as a preeminent institution of higher learning

Required Discretionary Approvals

The proposed Master Plan would require the following discretionary approvals from the City of Claremont:

 A zone change from RM 2,000 (Medium Density Residential, Minimum Lot Area/Unit: 2,000 Square Feet) to IE (Institution Educational) for four parcels (APN #s 8313-018-004, 8313-018-005, 8313-018-006, and 8313-018-007) totaling approximately 54,000 square feet (1.24 acres) located in the block between College Avenue, Bonita Avenue, Harvard Place, and Second Street, in order to make their zoning designation consistent with their General Plan land use designation of Institutional  Lot mergers and/or lot line adjustments for the project listed immediately above, and for other individual projects as necessary  Design review approval of all new construction, building relocations, and other site changes  Removal of any street tree will require approval of a permit from the Director of Community Services  A Special Use and Development Permit for any temporary construction trailers or other temporary construction-related uses, as applicable  Approval of the Master Plan  Ministerial and ancillary permits required to carry out individual projects under the Master Plan, such as demolition permits, buildings permits, and occupancy permits

City of Claremont ES-7 Pomona College 2015 Campus Master Plan EIR Executive Summary

ALTERNATIVES

This EIR includes a discussion of three alternatives to the proposed Master Plan, which include:

 Alternative 1: No Project (no development called for under the Master Plan)  Alternative 2: Alternative Site for Seaver Labs expansion and new Museum of Art  Alternative 3: No Changes to Thatcher Music Building or Seaver Labs, No New Museum of Art

The California Environmental Quality Act (CEQA) requires that an environmentally superior alternative be identified among those analyzed, and also requires that if the No Project Alternative is identified as the environmentally superior alternative, the most environmentally superior alternative other than the No Project Alternative also be identified. Alternative 1, the No Project Alternative, is considered environmentally superior among the alternatives, because it would have the least impacts compared to the proposed Master Plan. Alternative 3 would be the next most environmentally superior alternative other than the No Project Alternative.

SUMMARY OF IMPACTS AND MITIGATION MEASURES

Table ES-3 lists the environmental impacts of the proposed Master Plan, proposed mitigation measures, and residual impacts. Impacts are categorized by classes. Class I impacts are defined as significant, unavoidable adverse impacts, which require a statement of overriding considerations pursuant to Section 15093 of the CEQA Guidelines if the proposed Master Plan is approved. Class II impacts are significant adverse impacts that can be feasibly mitigated to less than significant levels and which require findings to be made under Section 15091 of the CEQA Guidelines. Class III impacts are adverse, but less than adopted significance thresholds. Class IV impacts are those where there is no impact or the effect would be beneficial.

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation AESTHETICS Impact AES-1: Views and Scenic None Required Less than significant Vistas. The scale and location of without mitigation development proposed in the Pomona College Master Plan is designed to preserve and enhance existing view corridors. Thus, implementation of the proposed Master Plan would not significantly block or impede views of scenic vistas. Impacts would be Class III, less than significant.

City of Claremont ES-8 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation Impact AES-2: Scenic Resources. The See Mitigation Measures BIO-2(a), BIO-2(b), Less than significant Plan Area contains scenic resources CR-2(a), and CR-2(b) with mitigation including buildings, open spaces, and incorporated trees, and if implementation of the proposed Master Plan adversely affected these resources it could have a potentially significant impact. The proposed Master Plan is designed to avoid impacts to such resources, and implementation of guidelines within the campus’s August 2011 Campus Planning and Landscape Design Guidelines and mitigation measures contained in this EIR would further protect these potentially scenic resources. The proposed Master Plan would thus not have a significant adverse effect on scenic resources. Impacts would be Class II, significant but mitigable. Impact AES-3: Visual Character and AES-3 Visual Impacts of Construction. Less than significant Quality. Development under the Prior to issuance of grading permits for any with mitigation proposed Master Plan would include construction project carried out under the incorporated physical changes to the Plan Area that Master Plan, the City’s Architectural could potentially degrade its visual Commission, during its review of the project character and quality. Future (as already required under Chapter 16.300, development carried out under the Architectural Review, of the Claremont Master Plan would be required to adhere Municipal Code), shall review the temporary to the guiding principles laid out in the construction-related impacts of the project on Master Plan, the City’s General Plan the visual character and quality of the Plan design principles, and any development Area and its surroundings, including its agreements between Pomona College potential cumulative impacts with other and the City. It would also be required to concurrent construction projects. If the undergo architectural review as required Commission determines that measures are by the City’s Municipal Code. Adherence required during construction to avoid to these policies and requirements, as significant impacts in this regard, it shall well as Mitigation Measures AES-3, BIO- impose conditions of approval on the project in 2(a) and BIO-2(b), would reduce impacts order to protect the visual character and quality related to visual character and quality to of the area. Examples of such measures a Class II, significant but mitigable level. include the following:  Location of Materials. Materials and equipment should be minimally visible to the public; the preferred location for materials is on-site or in a construction staging area, with a minimum amount of materials within the public right-of-way of other publicly-accessible areas.  Temporary Fencing. Install opaque temporary fencing at construction sites and staging areas for the duration of construction activities, and ensure that the placement and design of such fencing is sufficient to obstruct views of ground-level construction activities and equipment from the perspective of

City of Claremont ES-9 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation surrounding streets and publicly- accessible open spaces. Such fencing shall be subject to review by the City’s Architectural Commission for visual character and quality.  Restoration of Disturbed Areas. Restore and revegetate any areas disturbed by construction activities outside of fenced-off construction areas as expeditiously as possible. Also see Mitigation Measures BIO-2(a) and BIO-2(b) Impact AES-4: Light and Glare. Mitigation Measure AES-4(a): Lighting Plan. Less than significant Implementation of the proposed Master In conjunction with site plan development of with mitigation Plan would lead to new development in any project carried out under the Master Plan incorporated the Plan Area with the potential to create abutting an off-site residential neighborhood new sources of light and glare. Any that would include outdoor lighting or produce future development within the Plan Area light spillover, a lighting plan shall be required would be required to comply with that minimizes light spillover and conforms to principles and standards contained in the all applicable regulations, including all City’s General Plan and Municipal Code applicable standards of the Claremont and the proposed Master Plan Municipal Code. This includes Projects 11 specifically designed to reduce lighting (Expand Seaver Laboratories), as shown on impacts. Adherence to these policies and Figure 2-4 of Section 2.4, Project standards would reduce light and glare Characteristics, of this EIR. impacts, but mitigation measures are Mitigation Measure AES-4(b): Glare. Prior to required to reduce these impacts to a issuance of building permits, any structure Class II, significant but mitigable, level. proposed under the Master Plan shall be reviewed during the City of Claremont’s standard review process to ensure that proposed building materials do not create glare in a manner that could endanger motorists on adjacent roadways or pilots in nearby airspace, create a nuisance for surrounding properties or uses, or otherwise impact the community. Use of reflective materials such as polished metal or glass shall be prohibited unless the applicant can provide substantial evidence prepared by a qualified professional to the City’s Community Development Director that use of such materials will not cause glare impacts on surrounding properties or roadways. AIR QUALITY Impact AQ-1: Construction Mitigation Measure AQ-1: Construction Less than significant Emissions. Construction-related Scheduling. Construction scheduling for any with mitigation emissions from individual projects construction projects carried out under the incorporated carried out under the proposed Master proposed Master Plan shall be established Plan would not exceed SCAQMD such that no more than three construction thresholds for any criteria pollutant. projects occur concurrently, to ensure that the However, if construction of individual South Coast Air Quality Management District projects overlapped, emissions rates daily thresholds and LST’s for emissions are could combine and exceed SCAQMD not exceeded. Prior to issuance of grading daily thresholds for one or more permits, Pomona College shall submit a

City of Claremont ES-10 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation pollutants. Therefore, impacts would be construction schedule to the City of Claremont Class II, significant but mitigable. Community Development Director to verify that scheduling of construction activities conforms to this mitigation measure. If more than three construction projects are to be undertaken concurrently, and the City of Claremont determines that an air quality study completed by Pomona College demonstrates that construction emissions for those activities will not exceed applicable thresholds, then those activities may be carried out concurrently. Impact AQ-2: Operational Emissions. None Required Less than significant Operation of the proposed buildings without mitigation and facilities called for under the proposed Master Plan would generate air pollutant emissions. However, emissions would not exceed SCAQMD operational significance thresholds for any criteria pollutant. Therefore, operational air quality impacts would be Class III, less than significant.

Impact AQ-3: CO Emissions. Vehicle See Mitigation Measures T-1 and T-2(a) Less than significant trips generated by development called with mitigation for under the proposed Master Plan, incorporated together with other cumulative traffic in the area, would incrementally increase CO levels in the vicinity of the Plan Area, and would potentially contribute to the creation of a CO hotspot at the intersection of Foothill Boulevard and Indian Hill Boulevard. However, with implementation of mitigation measures required to improve the LOS at this intersection to LOS E, CO levels would remain within state and federal standards, and this impact would be Class II, significant but mitigable.

Impact AQ-4: AQMP Consistency. None Required Less than significant Implementation of the proposed Master without mitigation Plan could generate population growth as it would potentially increase the campus population by 50 students and 60 faculty/staff members. However, such growth would be within the population projections upon which the Air Quality Management Plan (AQMP) is based. Therefore, impacts associated with AQMP consistency would be Class III, less than significant.

City of Claremont ES-11 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation BIOLOGICAL RESOURCES Impact BIO-1: Special Status BIO-1(a): Focused Wildlife Surveys. Prior to Less than significant Species. Implementation of the any brush clearing, tree clearing, or grading with mitigation proposed Master Plan would have an activities for any project carried out under the incorporated adverse effect, either directly or through Master Plan requiring such activities, Pomona habitat modifications, on species College shall retain the services of a qualified identified as candidate, sensitive, or biologist to complete focused surveys to special-status species in local or determine the presence or absence of any regional plans, policies, or regulations, special-status wildlife species, (i.e. bats) that or by the California Department of Fish may potentially occur onsite. If no special and Wildlife or U.S. Fish and Wildlife status wildlife species or sign of special-status Service. This would be a Class II, wildlife species are found within the significant but mitigable, impact. development footprint or fire clearance zone, then no further mitigation is required. Once the pre-construction special-status wildlife species surveys are conducted by a qualified biologist during the proper seasons, the report results, including survey dates, exact species observed and location of species onsite, shall be submitted to the necessary regulatory agencies for review and approval. No construction shall begin prior to this approval. If any special-status wildlife species are found during pre-construction surveys, a mitigation plan shall be developed and implemented to minimize impacts to any special-status wildlife species and to ensure successful mitigation for impacts to special-status wildlife species. The mitigation plan shall include measures to safely relocate the sensitive wildlife species, to allow wildlife species to escape from harm, and to ensure installation of appropriate temporary fencing prior to development to prevent re-entry. The mitigation plan shall be prepared and submitted to the approving jurisdiction for review and approval. BIO-1(b): Raptor, Special Status Species, and Nesting Bird Protection. To avoid disturbance of nesting and special status birds including raptorial species protected by the Federal Migratory Bird Treaty Act and Sections 3503, 3503.5, and 3513 of the CFGC, activities related to projects carried out under the Master Plan, including, but not limited to, vegetation removal, ground disturbance, and construction and demolition shall occur outside of the bird breeding season (January 1 through August 31). If construction must begin within the breeding season, then a pre-construction nesting bird survey shall be conducted no more than 3 days prior to initiation of ground disturbance and vegetation removal. The nesting bird pre- construction survey shall be conducted within the disturbance footprint and a 500-foot buffer

City of Claremont ES-12 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation as allowable without trespassing on private lands outside the Plan Area. The survey shall be conducted by a biologist familiar with the identification of raptors and special status species known to occur in Los Angeles County using typical methods. Active nests shall be monitored at a minimum of once per week until it has been determined that the nest is no longer being used by either the young or adults. Bird survey results shall be submitted to the City and to CDFW. For any fencing installed as part of any project to be carried out under the Master Plan, any hollow fence posts shall be capped and any metal fence stakes with bolt holes shall have these holes plugged with bolts or other plugging materials in order to avoid entrapment, injury, or mortality to reptiles and birds (including raptors). Further information on this subject may be located at: http://kern.audubon.org/Audubon_death_pipes _flyer.pdf. Impact BIO-2: Local Policies or BIO-2(a) Site-Specific Tree Surveys. Prior Less than significant Ordinances Protecting Biological to the construction of any project listed in the with mitigation Resources. Implementation of the proposed Master Plan, a qualified biologist or incorporated proposed Master Plan may conflict with arborist shall determine the exact number, local policies or ordinances protecting type, and size of trees that may be impacted, biological resources, such as a tree via thinning, removal and/or encroachment, by preservation policy or ordinance. This development of that project. The biologist or would be a Class II, significant but arborist shall document each tree’s location, mitigable, impact. trunk diameter, health, height, canopy width, and the type and extent of impact anticipated as part of the site-specific tree survey. For those trees expected to be impacted, the biologist or arborist shall determine if the activity will endanger the life of the tree. The report shall also recommend avoidance and minimization measures to protect trees, consistent with City policy. If possible, avoidance shall be the primary mitigation measure utilized during the project design phase and during construction. Typical impact minimization and tree protection recommendations include, but are not limited to:  A pre-construction meeting shall be held with contractors, prior to commencement of work, to discuss tree protection measures.  Install protection fencing around tree to establish a tree protection zone prior to the start of construction. This fencing shall be placed at a minimum distance of fifteen (15) feet from the trunk of the tree or five (5) feet outside the drip line

City of Claremont ES-13 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation of the tree, whichever distance is greater.  Storage of construction equipment or materials shall occur outside of the tree protection zone.  All attempts shall be made to avoid damage to tree roots during grading and construction.  Any roots encountered during grading that are ½ inch and greater shall be cleanly cut. BIO-2(b) Tree Replacement. Compensatory mitigation may be required for tree removals and/or if the biologist or arborist determines that activities will endanger or shorten the life of the tree. Replacement of trees shall be in- kind at a minimum mitigation ratio of 1:1. Furthermore, within the area identified on page 37 of the Master Plan as the Natural Campus Zone (including The Wash and parts of the East Columbia Avenue (Arts) District and the South Residence Hall and Wig Beach District), trees will only be replaced with a plant palette associated with the native plant communities immediately surrounding Claremont (i.e. chaparral, Oak woodland, grasslands, and riparian woodlands). CULTURAL RESOURCES See Section V. Cultural Resources of CR-1 Previously Undiscovered Less than significant the Initial Study (Appendix A) Archaeological Resources. If any with mitigation archaeological resources are uncovered incorporated during grading and construction carried out under the proposed project, work shall be stopped and the Claremont City Engineer notified. A professional archaeological monitor shall be retained by the contractor to evaluate the resources before work is resumed and monitor the site when work resumes. The monitor shall immediately evaluate the artifacts that have been discovered to determine if they are significant and, if they are determined to be so, the monitor shall develop a treatment plan. The monitor shall be empowered to redirect excavation equipment and remove artifacts as needed. To minimize construction delay, the monitor shall be equipped to speedily collect resources. Recovered artifacts shall be cleaned according to generally accepted procedures and prepared sufficiently to allow identification. A report of findings shall be prepared describing the artifacts and their significance. The report shall be submitted to the City Engineer for transmittal to the appropriate institutional

City of Claremont ES-14 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation repository. The recovered artifacts shall be transferred to a qualified scientific institution where they would be afforded long-term preservation for future scientific study. If Native American cultural resources are discovered, a qualified archaeologist shall be hired to assess the resources and prepare a treatment plan. If resources are found to be significant, the appropriate Tribal Council (such as the Gabrieleno/Tongva Tribal Council or the Tribal Council of the San Manuel Band of Serrano Mission Indians) shall be notified, and if requested by the Tribal Council, the contractor and archaeologist shall, in good faith, consult with the Tribal Council on the discovery and disposition of the artifacts (e.g., avoidance, preservation, return, etc). Impact CR-2: Historic Resources. CR-2(a) Bridges Auditorium. To avoid a Significant and Implementation of the proposed Master significant impact on historic resources, unavoidable Plan would involve alteration, or projects at Bridges Auditorium called for under demolition, or relocation of ten 15 the Master Plan shall be completed in existing structures on the Pomona accordance with the Secretary of the Interior’s College campus. An historic district is Standards for Rehabilitation and the following present and three four campus measures from the Master Plan’s buildings that would be impacted were “Recommended Planning Guidelines for found to have historic significance, Bridges Auditorium Addition”: including Bridges Auditorium,  Retain the character of the north, Rembrandt Hall, and Thatcher Music south, and west façades Building, and Renwick House. Impacts to Renwick House, Bridges Auditorium,  Building addition footprint: only to the and Rembrandt Hall would be Class II, east side of the existing structure, significant but mitigable, but impacts to within the north and south corners of Thatcher Music Building would be Class the existing east wall. Maximum depth I, significant and unavoidable. of an addition: 60 feet from the existing east wall  Building Height: Maximum height to parapet line equal to parapets at northeast and southeast corners, or top of parapet for the south colonnade CR-2(b) Rembrandt Hall. The Master Plan calls for the removal of non-historic additions and rehabilitation of Rembrandt Hall, possibly including new additions to replace those to be demolished. To avoid a significant impact on historic resources, these activities shall be completed in accordance with the Secretary of the Interior’s Standards for Rehabilitation and the following measures from the Master Plan’s “Recommended Planning Guidelines for Rembrandt Hall”:  Retain the overall character and the north, east, and west façades of the existing structure. Addition to be on the south side of the existing structure [i.e., replacing extant additions]. Through

City of Claremont ES-15 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation the use of one or a combination of means – materials, color, architectural elements, or building form – a new building should distinguish the existing building  Building height: Two stories, maximum height to LeBus Court eave line  Roofs: Predominantly gable or hip roofs with red tile  Building colors: Predominantly the family of colors of Bridges Hall of Music, LeBus Court and Rembrandt Hall CR-2(c) Thatcher Music Building. Prior to the building being vacated, the College shall document the Thatcher Music Building (including the adjacent Lyon Garden). This documentation shall include measures to safeguard any existing original architectural drawings as well as the production of photographs and the recording of video of the building. To ensure its public accessibility, the agreed upon documentation shall be filed with Special Collections of Honnold Library for inclusion in their local/colleges history collection.  Drawings: Any existing historic architectural drawings of the Thatcher Music Building shall be digitally scanned for storage with the other documentation.  Photographs: Photo documentation of Thatcher Music Building and Lyon Garden shall be prepared, documenting the setting, building exteriors, and building interiors. Photographs must be identified and labeled using HABS (Historic American Buildings Survey) standards. Photographs may be color, 35mm (film), and non-archival. Photographs should include overall views of the site; individual views of important building features; exterior elevations of each façade of the complex; views of major interior spaces including, but not limited to, the lobby and performance hall; and detail views of specific materials or elements. Black and white photographs may be included at the photographer’s discretion to highlight aspects of the building.  Digital Video: Digital video of the exterior of Thatcher Music Building

City of Claremont ES-16 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation and Lyon Garden and the major spaces of the interior (lobby, auditorium, etc.). CR-2(d) Renwick House. Prior to Renwick House being relocated, the following actions shall be taken by the College:  Renwick House shall be professionally photographed to record its current location and setting. The images must record the setting of the house, the appearance of College Avenue with the house in it, and the current condition (interior and exterior) of the house. Recordation should also focus on the features that will most be affected by the removal from the original site, such as foundations, steps, porches, etc. The rear structure shall also be documented in its architectural details, in general views, in relationship to the main house, and showing its context within the property. Recordation should be completed by an architectural photographer who is experienced with documentation of historic resources.  Measurements of Renwick House shall be recorded that are critical to the accurate reestablishment of the house after relocation, including the relationship of the ground to the floor line and to the height of porch floor and steps.  The setback of the relocated house from College Avenue shall be consistent with that of other residences of the same era that are located on this section of College Avenue.  The relocation of Renwick House shall be performed according to best practices for the relocation of historic properties, with guidance from publications from the National Park Service or similar sources. This includes protection of historic features to minimize damage and any resulting need for their replacement.  The moving and rehabilitation of Renwick House shall meet the Secretary of the Interior’s Standards for Rehabilitation. This includes placing it on a new foundation of the same type and height as the historic foundation. If the material of the foundation is different (e.g., the

City of Claremont ES-17 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation substitution of concrete for stone), its external appearance should mimic the historic foundation in its facing material. Retaining the material of the porch (preferably the actual historic fabric) is also critical to retaining the historic feeling of the exterior of the building.

GEOLOGY AND SOILS Impact GEO-1: Seismic Effects. None Required Less than significant Implementation of the proposed Master without mitigation Plan would lead to an increase in the amount of built facilities within the Plan Area that could expose people and structures to both localized and regional seismic hazards, including strong ground shaking and secondary seismic effects such as liquefaction. However, compliance with City and CBC requirements would reduce impacts to a Class III, less than significant level. Impact GEO-2: Erosion or Loss of None Required Less than significant Topsoil. Implementation of the without mitigation proposed Master Plan would lead to an increase in the amount of built facilities within the Plan Area, requiring grading and other soil disturbing activities that could result in erosion or loss of topsoil. However, such development would be required to comply with all existing regulations governing such effects. With adherence to these requirements, impacts would be Class III, less than significant.

GREENHOUSE GASES Impact GHG-1: Generation of None Required Less than significant Greenhouse Gas Emissions. without mitigation Development that could potentially occur under the proposed Master Plan would generate additional GHG emissions beyond existing conditions. However, GHG emissions generated would not exceed proposed SCAQMD significance thresholds. Impacts would therefore be Class III, less than significant. Impact GHG-2: Plan, Policy, and None Required Less than significant Regulatory Consistency. without mitigation Development called for under the proposed Master Plan would be generally consistent with the Climate Action Team GHG reduction strategies,

City of Claremont ES-18 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation the 2008 Attorney General Greenhouse Gas Reduction Measures, and the City of Claremont’s Sustainable City Plan. Impacts would therefore be Class III, less than significant. HAZARDS AND HAZARDOUS MATERIALS Impact HAZ-1: Potential Upset of or None Required Less than significant Accidents Involving Hazardous without mitigation Materials. Implementation of the proposed Master Plan may create the potential for upset conditions involving the release of hazardous materials into the environment. However, compliance with existing regulations and on-campus programs would reduce potential impacts to a Class III, less than significant, level. Impact HAZ-2: Lead and Asbestos. None Required Less than significant Implementation of the proposed Master without mitigation Plan would involve remodeling or renovation of existing buildings on campus. These construction activities could result in exposure to lead and asbestos from existing building materials. Impacts would be Class III, less than significant. Impact HAZ-3: Contaminated Sites. None Required Less than significant Listed hazardous materials sites are without mitigation located both on and within one-quarter mile of the Pomona College campus. However, these sites have been remediated or are not known to contain hazardous materials. Furthermore, potential exposure to contaminated plumes of groundwater during implementation of the Master Plan would be extremely unlikely due to the depth of groundwater. Therefore, impacts related to Cortese list sites would be Class III, less than significant. Impact HAZ-4: Emergency response None Required Less than significant or evacuation plans. Implementation without mitigation of the proposed Master Plan would not impair the implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan. These impacts would be Class III, less than significant.

City of Claremont ES-19 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation HYDROLOGY AND WATER QUALITY Impact HWQ-1: Water Quality. None Required Less than significant Implementation of the proposed Master without mitigation Plan would involve construction activities and operation of new facilities, which would have the potential to create polluted runoff and violate water quality standards. However, existing regulations would reduce potential adverse effects and impacts would be Class III, less than significant. Impact HWQ-2: Erosion. New None Required Less than significant development carried out under the without mitigation proposed Master Plan could lead to or increase erosion by altering existing drainage patterns or increasing the rate or amount of surface runoff. However, erosion from construction of individual projects carried out under the Master Plan would be governed by existing regulations designed to reduce such adverse impacts. In addition, the Master Plan includes measures to control erosion and sediment on site, and to prevent increases in post-development runoff. Impacts would therefore be Class III, less than significant.

LAND USE AND PLANNING Impact LU-1: Land Use Compatibility. See Mitigation Measures in Sections 4.1, 4.2, Less than significant With incorporation of mitigation 4.3, 4.4, 4.10, and 4.12 of this EIR with mitigation measures included in the aesthetics, air incorporated quality, biological resources, cultural resources, noise, and transportation sections of this EIR, the proposed Master Plan would be generally compatible with existing adjacent institutional, commercial and residential land uses. Impacts would be Class III, less than significant. Impact LU-2: Policy Consistency. See Mitigation Measures identified Less than significant With implementation of the mitigation throughout this EIR with mitigation measures identified throughout this EIR, incorporated the proposed Master Plan, including the proposed zoning ordinance amendment, would be consistent with the City’s adopted General Plan and Sustainable City Plan. This is a Class III, less than significant, impact.

City of Claremont ES-20 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation NOISE Impact N-1: Construction Noise. N-1 Construction-Related Noise Reduction Significant and Development called for under the Measures. The following measures shall be unavoidable proposed Master Plan would generate followed during construction of the Seaver intermittent noise during construction. Labs expansion and the new Museum of Art Although construction in the Plan Area facility. would be limited to daytime hours (a) Mufflers. During all site excavation pursuant to provisions of the Claremont and grading, all construction Municipal Code, maximum noise levels equipment, fixed or mobile, shall be at the nearest sensitive receptors would operated with closed engine doors and exceed City standards. Mitigation shall be equipped with properly Measures N-1(a) through N-1(g) would operating and maintained mufflers reduce noise impacts, but noise impacts consistent with manufacturers’ during construction of the Seaver Labs standards. expansion and the new Museum of Art would remain Class I, significant and (b) Stationary Equipment. All stationary unavoidable. construction equipment shall be placed so that emitted noise is directed away from the nearest sensitive receptors. (c) Equipment Staging Areas. Equipment staging shall be located in areas that will create the greatest distance feasible between construction-related noise sources and noise-sensitive receptors. (d) Electrically-Powered Tools and Facilities. Electrical power shall be used to run air compressors and similar power tools and to power any temporary structures, such as construction trailers or caretaker facilities. (e) Smart Back-up Alarms. Mobile construction equipment shall have smart back-up alarms that automatically adjust the sound level of the alarm in response to ambient noise levels. Alternatively, back-up alarms shall be disabled and replaced with human spotters to ensure safety when mobile construction equipment is moving in the reverse direction. (f) Additional Noise Attenuation Techniques. During the clearing, earth moving, grading, and foundation/conditioning phases of construction, temporary sound barriers shall be installed and maintained between the construction site and the sensitive receptors. Temporary sound barriers shall consist of sound blankets affixed to construction fencing along all sides of the construction site boundary facing potentially sensitive receptors. (g) City Enforcement - Noise. The Building Official of the City of

City of Claremont ES-21 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation Claremont shall enforce the following noise-attenuating construction requirements.  Excavation, grading, and other construction activities related to construction projects carried out under the proposed Master Plan shall comply with City restrictions on hours of construction activity.  All construction vehicles, such as bulldozers and haul trucks, shall be prohibited from idling in excess of 10 minutes.  The contractor shall inspect construction equipment to ensure that such equipment is in proper operating condition and fitted with standard factory silencing features. Construction equipment shall utilize all standard factory silencing features, such as equipment mufflers, enclosures, and barriers. Impact N-2: Construction Vibration. None Required Less than significant Development called for under the without mitigation proposed Master Plan would generate intermittent vibration levels during individual construction activities. However, vibration levels would not exceed standards during construction or operation of projects carried out under the proposed Master Plan. This impact would be Class III, less than significant. Impact N-3: Traffic Noise. None Required Less than significant Development called for under the without mitigation proposed Master Plan would incrementally increase traffic and associated noise levels along area roadways in and around the Plan Area, thus exposing existing and future land uses to increased noise. However, increases in traffic would not expose sensitive receptors to noise levels exceeding applicable standards. Impacts related to operational traffic noise would be Class III, less than significant.

City of Claremont ES-22 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation Impact N-4: On-Site Operational N-4(a) Air Intake Turbine Silencers. Any Less than significant Noise. Development called for under ground-mounted, diesel-powered air intake with mitigation the proposed Master Plan would turbine installed in a new or renovated incorporated increase on-site operational noise levels building proposed in the Master Plan and in and around the Plan Area, thus located within 944 feet of an off-site noise- exposing existing and future land uses sensitive receptor such as a residence shall to increased noise. The operation of air be equipped with a properly operating and intake turbines and rooftop mechanical maintained silencer, sufficient to reduce equipment could generate noise in operational noise at the nearest off-site noise- excess of applicable local standards at sensitive receptor to less than 55 dBA. residential receptors. Impacts would be N-4(b) Rooftop Mechanical Equipment Class II, significant but mitigable. Shielding. A noise-attenuating barrier shall be installed around any new rooftop mechanical equipment installed at the Seaver North building sufficient to reduce operational noise at the nearest off-site noise-sensitive receptor to less than 55 dBA. PUBLIC SERVICES AND RECREATION Impact PS-1: Fire Protection. None Required Less than significant Implementation of the proposed Master without mitigation Plan would incrementally increase demands on fire protection services, but would not create the need for new or expanded fire protection facilities. Impacts would be Class III, less than significant. Impact PS-2: Police Service. None Required Less than significant Implementation of the proposed Master without mitigation Plan would incrementally increase demand on police service. However, because new police facilities beyond those already planned would not be needed, impacts would be Class III, less than significant. Impact PS-3: Public Schools. None Required Less than significant Implementation of the proposed Master without mitigation Plan would incrementally increase demand on public schools, but due to the nature of the development and the number of new residents it could bring to the area, impacts would be Class III, less than significant. Impact PS-4: Public Library None Required Less than significant Facilities. Implementation of the without mitigation proposed Master Plan would incrementally increase demand for public library facilities due to an increase in student enrollment and new faculty and staff at Pomona College. However, demand for public library facilities would be offset by the provision of such facilities at the Claremont Colleges, and City library

City of Claremont ES-23 Pomona College 2015 Campus Master Plan EIR Executive Summary

Table ES-3 Summary of Environmental Impacts and Mitigation Measures

Significance After Impact Mitigation Measures Mitigation facilities would remain above State standard guidelines for public libraries. This would be a Class III, less than significant impact. Impact PS-5: Park Facilities. None Required Less than significant Implementation of the proposed Master without mitigation Plan would increase the demand for park facilities due to an increase in student enrollment and new faculty and staff at Pomona College. However, City parkland is expected to remain above the City’s goal of 4.0 acres per 1,000 residents. This would be a Class III, less than significant impact.

TRANSPORTATION/CIRCULATION Impact T-1: Traffic Increases. Full T-1: Indian Hill Boulevard/Foothill Less than significant implementation of the proposed Master Boulevard Intersection. The applicant shall with mitigation Plan would increase traffic on the provide a proportionate fair-share contribution incorporated surrounding network. This would towards the widening and/or restriping of increase delay at the Indian Hill Indian Hill Boulevard at Foothill Boulevard to Boulevard/Foothill Boulevard provide a second northbound left-turn lane. In intersection, which already operates at addition, the existing traffic signal shall be an unacceptable level of service during modified accordingly to accommodate the the PM Peak Hour. Impacts would be second northbound left-turn lane. The total Class II, significant but mitigable. contribution shall be $62.50 (or approximately 0.05 percent of the intersection’s traffic during the greatest peak hour). Impact T-2: Cumulative Traffic T-2(a) Indian Hill Boulevard at Foothill Less than significant Increases. Implementation of the Boulevard. The applicant shall provide a with mitigation proposed Master Plan, along with proportionate fair-share contribution towards incorporated cumulative traffic in the city of the widening and/or restriping of Indian Hill Claremont, would increase traffic on the Boulevard at Foothill Boulevard to provide a surrounding roadway network. This second northbound left-turn lane, a second increase in traffic would contribute to an southbound through lane, and an exclusive unacceptable level of service at one eastbound right turn lane. The existing traffic intersection for the Year 2020 signal shall be modified accordingly. Cumulative Plus Project scenar