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00 - Table of ContentsDEIS TOC-1 9/12/2018 Table of Contents 1: Executive Summary .............................................................................................................. 1-1 1.1. Introduction, Purpose of Document........................................................................... 1-1 1.2. Summary Description of the Site and Its Environmental Setting .............................. 1-1 1.3. Summary Description of the Proposed Action .......................................................... 1-2 1.3.1. Proposed Zoning .................................................................................................... 1-3 1.3.1.1. Existing Zoning ............................................................................................ 1-3 1.3.1.2. Proposed Zoning ........................................................................................... 1-3 1.3.2. Proposed Project .................................................................................................... 1-4 1.3.2.1. Proposed New Uses and Buildings ............................................................... 1-4 1.3.2.2. Proposed PUD Concept Plan ........................................................................ 1-5 1.3.2.3. Proposed Method of Ownership and Control ............................................... 1-5 1.3.2.4. Proposed Parking and Circulation Plans ...................................................... 1-5 1.3.2.5. Proposed Landscaping .................................................................................. 1-6 1.4. Summary Statement of Project Purpose and Need .................................................... 1-7 1.5. Summary of Potential Environmental Impacts .......................................................... 1-7 1.5.1. Land Use, Public Policy, and Zoning .................................................................... 1-7 1.5.1.1. Zoning and Land Use ................................................................................... 1-7 1.5.1.2. Public Policy ................................................................................................. 1-8 1.5.2. Geology, Soils, and Topography ........................................................................... 1-9 1.5.2.1. Soils .............................................................................................................. 1-9 1.5.2.2. Topography .................................................................................................. 1-9 1.5.2.3. Construction of Subsurface Structures ....................................................... 1-10 1.5.3. Waters and Wetlands ........................................................................................... 1-10 1.5.4. Stormwater Management ..................................................................................... 1-12 1.5.5. Vegetation and Wildlife ....................................................................................... 1-12 1.5.6. Visual Resources and Community Character ...................................................... 1-13 1.5.6.1. Visual Character and Visibility of the Project Site ..................................... 1-13 1.5.6.2. Community Character ................................................................................ 1-14 1.5.7. Socioeconomic and Fiscal Impacts ...................................................................... 1-15 1.5.8. Community Facilities........................................................................................... 1-15 1.5.8.1. Emergency Services ................................................................................... 1-15 1.5.8.2. Schools ....................................................................................................... 1-16 1.5.8.3. Open Space ................................................................................................. 1-16 1.5.8.4. Solid Waste and Recycling ......................................................................... 1-16 1.5.8.5. Senior Services and Recreation Programs .................................................. 1-17 1.5.9. Infrastructure and Utilities ................................................................................... 1-17 1.5.10. Traffic and Transportation ................................................................................... 1-18 1.5.11. Air Quality ........................................................................................................... 1-18 1.5.12. Noise .................................................................................................................... 1-18 1.5.13. Hazardous Materials ............................................................................................ 1-19 900 King Street Redevelopment 9/12/2018 TOC-2 DEIS 1.5.14. Construction ......................................................................................................... 1-19 1.6. Summary of Mitigation Measures ........................................................................... 1-20 1.6.1. Land Use, Public Policy, and Zoning ................................................................... 1-20 1.6.2. Geology, Soils, and Topography .......................................................................... 1-21 1.6.3. Waters and Wetlands ........................................................................................... 1-21 1.6.4. Stormwater Management ..................................................................................... 1-21 1.6.5. Vegetation and Wildlife ....................................................................................... 1-22 1.6.6. Visual Resources and Community Character ...................................................... 1-22 1.6.7. Socioeconomic and Fiscal Impacts ...................................................................... 1-22 1.6.8. Community Facilities ........................................................................................... 1-22 1.6.8.1. Emergency Services Response ................................................................... 1-22 1.6.8.2. Schools ........................................................................................................ 1-23 1.6.8.3. Open Space ................................................................................................. 1-23 1.6.8.4. Solid Waste and Recycling ......................................................................... 1-23 1.6.8.5. Senior Services and Recreation Programs .................................................. 1-23 1.6.9. Infrastructure and Utilities ................................................................................... 1-23 1.6.10. Traffic and Transportation ................................................................................... 1-24 1.6.11. Air Quality ........................................................................................................... 1-24 1.6.12. Noise .................................................................................................................... 1-24 1.6.13. Hazardous Materials ............................................................................................ 1-24 1.6.14. Construction ......................................................................................................... 1-24 1.7. Summary Description of Alternatives Analyzed ..................................................... 1-25 1.7.1. No Action ............................................................................................................. 1-25 1.7.2. Residential (Non-Age-Restricted) Development Under the Existing PUD Regulations 1-26 1.7.3. Residential (Non-Age-Restricted) Development Under the Existing PUD Regulations With Greater Gross Floor Area ............................................................................................ 1-27 1.7.4. Senior Living Facility Development Under the Existing PUD Regulations ........ 1-28 1.7.5. Reduced Density Proposed Project ...................................................................... 1-28 1.7.6. Reduced Size Proposed Project ............................................................................ 1-29 1.7.7. Proposed Project With No Change to the Minimum Age for Residents .............. 1-31 1.8. List of All Approvals Required ................................................................................ 1-31 2: Project Description ............................................................................................................... 2-1 2.1. Project Identification .................................................................................................. 2-1 2.2. Project Site ................................................................................................................. 2-1 2.3. Proposed Zoning ........................................................................................................ 2-3 2.3.1. Existing Zoning ...................................................................................................... 2-3 2.3.2. Proposed Zoning .................................................................................................... 2-4 2.4. Proposed Project ........................................................................................................ 2-4 2.4.1. New Buildings and Uses ........................................................................................ 2-5 2.4.1.1. Independent Living ....................................................................................... 2-5 2.4.1.2. Assisted Living ............................................................................................. 2-6 2.4.1.3. Townhouses .................................................................................................. 2-7 2.4.1.4. Affordable Housing ...................................................................................... 2-7 2.4.2. Site Operation ........................................................................................................ 2-7 2.4.3. Parking and Circulation ......................................................................................... 2-9 2.4.3.1. Vehicular Circulation .................................................................................... 2-9 2.4.3.2. Parking ........................................................................................................ 2-10 Table of Contents DEIS TOC-3 9/12/2018 2.4.3.3. Pedestrian Circulation ................................................................................ 2-10 2.4.4. Proposed Landscaping Plan ................................................................................. 2-10 2.4.5. Grading, Drainage, and Stormwater Management Plans ..................................... 2-12 2.4.5.1. Grading ....................................................................................................... 2-12 2.4.5.2. Proposed Stormwater Management ............................................................ 2-13 2.4.6. Improvements to On-Site Water and Sewer Infrastructure.................................. 2-13 2.5. Purpose and Need .................................................................................................... 2-14 2.6. Required Approvals ................................................................................................. 2-14 3: Land Use, Public Policy, and Zoning .................................................................................. 3-1 3.1. Introduction ............................................................................................................... 3-1 3.2. Zoning and Land Use ................................................................................................ 3-1 3.2.1. Current Conditions................................................................................................. 3-1 3.2.1.1. Project Site ................................................................................................... 3-1 3.2.1.2. Study Area .................................................................................................... 3-3 3.2.2. Potential Impacts of the Proposed Action .............................................................. 3-4 3.2.2.1. Consistency With Existing Land Use and Zoning ........................................ 3-4 3.2.2.2. Consistency With the Intent and Current Condition of the PUD ................. 3-7 3.2.2.3. Consistency With Scenic Roads Overlay District ...................................... 3-10 3.2.2.4. Other Potentially Affected Properties......................................................... 3-11 3.3. Public Policy ............................................................................................................ 3-12 3.3.1. Village’s Comprehensive Plan ............................................................................ 3-12 3.3.1.1. General Recommendations of the Comprehensive Plan ............................ 3-12 3.3.1.2. Site Specific Recommendations of the Comprehensive Plan ..................... 3-14 3.3.2. Village’s Affordable Housing Policies ................................................................ 3-16 3.3.3. Applicable Policy Documents of Westchester County ........................................ 3-17 3.3.3.1. Patterns for Westchester: the Land and the People .................................... 3-17 3.3.3.2. Westchester 2025........................................................................................ 3-17 3.3.3.3. Westchester County Greenway Compact Plan ........................................... 3-18 3.4. Mitigation ................................................................................................................ 3-19 4: Geology, Soils, and Topography .......................................................................................... 4-1 4.1. Introduction ............................................................................................................... 4-1 4.2. Existing Conditions ................................................................................................... 4-1 4.2.1. Soils ....................................................................................................................... 4-1 4.2.2. Topography ............................................................................................................ 4-2 4.2.3. Subsurface Soil and Geology ................................................................................. 4-3 4.2.4. Other Geologic Features ........................................................................................ 4-4 4.3. Potential Impacts of the Proposed Project ................................................................. 4-4 4.3.1. Soils ....................................................................................................................... 4-5 4.3.2. Topography ............................................................................................................ 4-6 4.3.3. Construction of Subsurface Structure .................................................................... 4-7 4.4. Mitigation Measures .................................................................................................. 4-8 5: Waters and Wetlands ........................................................................................................... 5-1 5.1. Introduction ............................................................................................................... 5-1 5.2. Existing Conditions ................................................................................................... 5-2 5.2.1. Wetlands ................................................................................................................ 5-2 900 King Street Redevelopment 9/12/2018 TOC-4 DEIS 5.2.1.1. Wetland Functions ........................................................................................ 5-3 5.2.2. Surface Waters ....................................................................................................... 5-4 5.2.3. Wetland and Watercourse Buffer Areas ................................................................ 5-4 5.3. Potential Impacts of the Proposed Project ................................................................. 5-5 5.3.1. Direct Impacts to Wetlands and Waterbodies ........................................................ 5-5 5.3.2. Direct Impacts to Wetland and Waterbody Buffer Areas ...................................... 5-5 5.3.3. Indirect Impacts to Wetland and Waterbody Hydrology ....................................... 5-6 5.4. Mitigation Measures .................................................................................................. 5-7 6: Stormwater Management ..................................................................................................... 6-1 6.1. Introduction ................................................................................................................ 6-1 6.2. Existing Conditions .................................................................................................... 6-1 6.3. Potential Impacts of the Proposed Project ................................................................. 6-3 6.4. Mitigation Measures .................................................................................................. 6-5 7: Vegetation and Wildlife ........................................................................................................ 7-1 7.1. Introduction and Summary of Findings ..................................................................... 7-1 7.2. Existing Conditions .................................................................................................... 7-1 7.2.1. Habitat .................................................................................................................... 7-1 7.2.1.1. Maintained Lawn With Ornamental Trees ................................................... 7-2 7.2.1.2. Mixed Deciduous Hardwood ........................................................................ 7-2 7.2.1.3. Forested Wetlands ......................................................................................... 7-2 7.2.1.4. Emergent Wetlands ....................................................................................... 7-2 7.2.1.5. Impervious Surface ....................................................................................... 7-2 7.2.2. Wildlife .................................................................................................................. 7-2 7.2.3. Threatened and Endangered Species ...................................................................... 7-3 7.2.4. Trees ....................................................................................................................... 7-3 7.3. Potential Impacts of the Proposed Project ................................................................. 7-3 7.3.1. Habitat .................................................................................................................... 7-3 7.3.2. Wildlife .................................................................................................................. 7-4 7.3.3. Threatened and Endangered Species ...................................................................... 7-4 7.3.4. Trees ....................................................................................................................... 7-4 7.4. Mitigation Measures .................................................................................................. 7-5 8: Visual Resources and Community Character .................................................................... 8-1 8.1. Introduction ................................................................................................................ 8-1 8.2. Existing Conditions .................................................................................................... 8-2 8.2.1. Project Site ............................................................................................................. 8-2 8.2.1.1. Location A: Wetland/Vegetative Buffer Along the Project Site’s Western Property Line ................................................................................................ 8-2 8.2.1.2. Location B: Existing Building from Arbor Drive Looking East................... 8-3 8.2.1.3. Location C: Existing Building from Arbor Drive Looking West ................. 8-3 8.2.1.4. Location D: Front of Existing Building from Parking Lot ........................... 8-3 8.2.1.5. Location E: Existing Parking Lot ................................................................. 8-3 8.2.1.6. Location F: Existing Parking Lot .................................................................. 8-3 8.2.1.7. Location G: Project Site’s Eastern Property Line ......................................... 8-4 8.2.1.8. Location H: Vegetative Buffer Along the Project Site’s Northern Property Line . 8-4 8.2.1.9. Location I: Existing Parking Lot and Building ............................................. 8-4 Table of Contents DEIS TOC-5 9/12/2018 8.2.2. Surrounding Areas ................................................................................................. 8-4 8.2.2.1. Vantage Point 1: Lawn Area On the Project Site Between the Arbors Residences and the Wetland/Wooded Area ................................................. 8-4 8.2.2.2. Vantage Point 2: King Street, South of Arbor Drive and North of the High School Driveway .......................................................................................... 8-5 8.2.2.3. Vantage Point 3: Harkness Park ................................................................... 8-5 8.2.2.4. Vantage Point 4a: Arbor Drive Between the Main Site and Service Driveways to 900 King Street Looking West .............................................. 8-5 8.2.2.5. Vantage Point 4b: Arbor Drive Between the Main Site and Service Driveways to 900 King Street Looking North ............................................. 8-5 8.2.2.6. Vantage Point 5: King Street in the Vicinity of the Driveway to Village Hall, RBPD, and RBFD ........................................................................................................ 8-5 8.2.2.7. Vantage Point 6: North Ridge Street At Exit 27s of the Hutchinson River Parkway ....................................................................................................... 8-6 8.2.2.8. Vantage Point 7: Village Hall, RBPD, and RBFD Parking Lot ................... 8-6 8.2.2.9. Vantage Point 8a: Ivy Hill Lane Between Arbor Drive and the First Guest Parking Area ................................................................................................ 8-7 8.2.2.10. Vantage Point 8b: Ivy Hill Lane Between Arbor Drive and the First Guest Parking Area, Approximately 10 Feet West of Vantage Point 8a ............... 8-7 8.2.2.11. Vantage Point 8c: Southern Corner of the Project Site, Approximately 15 Feet North of Vantage Point 8b ................................................................... 8-7 8.2.2.12. Vantage Point 9a: King Street Northbound Exit Ramp of the Hutchinson River Parkway .............................................................................................. 8-7 8.2.2.13. Vantage Point 9b: King Street Northbound Exit Ramp of the Hutchinson River Parkway, Approximately 100 Feet North of Vantage Point 9a .......... 8-7 8.2.3. Visual and Architectural Character Within ½-Mile of Project Site ....................... 8-8 8.2.3.1. Fairlawn Parkway Neighborhood ................................................................. 8-8 8.2.3.2. Arbors Neighborhood ................................................................................... 8-9 8.2.3.3. Hillandale Road Neighborhood .................................................................... 8-9 8.2.3.4. Glenville Town Center ............................................................................... 8-10 8.2.3.5. Glen Ridge Road Neighborhood ................................................................ 8-10 8.2.3.6. Pemberwick Road and Bishop Drive Neighborhood ................................. 8-10 8.2.4. Other Developments in the Village ..................................................................... 8-11 8.3. Potential Impacts of the Proposed Project ............................................................... 8-12 8.3.1. Proposed On-Site Visual Character ..................................................................... 8-12 8.3.2. Visibility of Project Site ...................................................................................... 8-13 8.3.2.1. Vantage Point 1: Lawn Area On the Project Site Between the Arbors Residences and the Wetland/Wooded Area ............................................... 8-14 8.3.2.2. Vantage Point 2: King Street, South of Arbor Drive and North of the High School Driveway ........................................................................................ 8-14 8.3.2.3. Vantage Point 3: Harkness Park ................................................................. 8-14 8.3.2.4. Vantage Point 4a: Arbor Drive Between the Main Site and Service Driveways to 900 King Street .................................................................... 8-15 8.3.2.5. Vantage Point 4b: Arbor Drive Between the Main Site and Service Driveways to 900 King Street .................................................................... 8-15 8.3.2.6. Vantage Point 5: King Street in the Vicinity of the Driveway to Village Hall, RBPD, and RBFD ............................................................................................... 8-16 900 King Street Redevelopment 9/12/2018 TOC-6 DEIS 8.3.2.7. Vantage Point 6: North Ridge Street At Exit 27s of the Hutchinson River Parkway ...................................................................................................... 8-16 8.3.2.8. Vantage Point 7: Village Hall, RBPD, and RBFD Parking Lot ................. 8-16 8.3.2.9. Vantage Point 8a: Ivy Hill Lane Between Arbor Drive and the First Guest Parking Area ............................................................................................... 8-17 8.3.2.10. Vantage Point 8b: Ivy Hill Lane Between Arbor Drive and the First Guest Parking Area, Approximately 10 Feet West of Vantage Point 8a .............. 8-17 8.3.2.11. Vantage Point 8c: Southern Corner of the Project Site, Approximately 15 Feet North of Vantage Point 8c .................................................................. 8-17 8.3.2.12. Vantage Point 9a: King Street Northbound Exit Ramp of the Hutchinson River Parkway ............................................................................................ 8-17 8.3.2.13. Vantage Point 9b: King Street Northbound Exit Ramp of the Hutchinson River Parkway, Approximately 100 Feet North of Vantage Point 9a ........ 8-18 8.3.3. Consistency of the Proposed Project With the Existing Visual and Community Character .............................................................................................................. 8-18 8.4. Mitigation Measures ................................................................................................ 8-21 9: Socioeconomics and Fiscal Impacts ..................................................................................... 9-1 9.1. Introduction ................................................................................................................ 9-1 9.2. Existing Conditions .................................................................................................... 9-1 9.2.1. Demographics ........................................................................................................ 9-1 9.2.1.1. Population Overview .................................................................................... 9-1 9.2.1.2. Population Density ........................................................................................ 9-2 9.2.1.3. Age Characteristics ....................................................................................... 9-3 9.2.1.4. Income Characteristics .................................................................................. 9-4 9.2.1.5. Housing Characteristics ................................................................................ 9-4 9.2.2. Fiscal Conditions .................................................................................................... 9-5 9.3. Future without the Proposed Project .......................................................................... 9-6 9.3.1. Demographics ........................................................................................................ 9-6 9.3.2. Fiscal Conditions .................................................................................................... 9-7 9.4. Potential Impacts of the Proposed Project ................................................................. 9-7 9.4.1. Demographics ........................................................................................................ 9-7 9.4.2. Fiscal Conditions .................................................................................................... 9-7 9.5. Mitigation Measures ................................................................................................ 9-11 10: Community Facilities ........................................................................................................ 10-1 10.1. Introduction .............................................................................................................. 10-1 10.2. Emergency Services Response ................................................................................ 10-1 10.2.1. Existing Conditions .............................................................................................. 10-2 10.2.1.1. Existing Services ......................................................................................... 10-2 10.2.1.2. Call History of the Project Site ................................................................... 10-3 10.2.1.3. Emergency Services Experience with Other Senior Living Communities . 10-4 10.2.2. Future without the Proposed Project .................................................................... 10-5 10.2.3. Potential Impacts of the Proposed Project............................................................ 10-6 10.2.3.1. Emergency Medical Services ...................................................................... 10-6 10.2.3.2. Police Services ............................................................................................ 10-6 10.2.3.3. Fire Services ............................................................................................... 10-7 10.2.4. Mitigation Measures ............................................................................................ 10-7 Table of Contents DEIS TOC-7 9/12/2018 10.2.5. Emergency Services Access and Response ......................................................... 10-8 10.2.5.1. Fire Apparatus Access to Site Buildings .................................................... 10-8 10.2.5.2. Secondary Site Access ................................................................................ 10-8 10.2.5.3. Interior Building Access ............................................................................. 10-8 10.3. Schools .................................................................................................................... 10-9 10.3.1. Existing Conditions ............................................................................................. 10-9 10.3.2. Future without the Proposed Project .................................................................... 10-9 10.3.3. Potential Impact of the Proposed Project ............................................................. 10-9 10.3.4. Mitigation Measures .......................................................................................... 10-10 10.4. Open Space ............................................................................................................ 10-11 10.4.1. Existing Conditions ........................................................................................... 10-11 10.4.2. Potential Impacts of the Proposed Project ......................................................... 10-12 10.4.3. Mitigation Measures .......................................................................................... 10-14 10.5. Solid Waste and Recycling .................................................................................... 10-14 10.5.1. Existing Conditions ........................................................................................... 10-14 10.5.2. Future without the Proposed Project .................................................................. 10-15 10.5.3. Potential Impacts of the Proposed Project ......................................................... 10-15 10.5.4. Mitigation Measures .......................................................................................... 10-17 10.6. Senior Services and Recreation Programs ............................................................. 10-17 10.6.1. Existing Conditions ........................................................................................... 10-17 10.6.2. Future without the Proposed Project .................................................................. 10-18 10.6.3. Potential Impacts of the Proposed Project ......................................................... 10-18 10.6.4. Mitigation Measures .......................................................................................... 10-18 11: Infrastructure and Utilities .............................................................................................. 11-1 11.1. Introduction ............................................................................................................. 11-1 11.2. Water Supply ........................................................................................................... 11-1 11.2.1. Existing Conditions ............................................................................................. 11-1 11.2.2. Future without the Proposed Project .................................................................... 11-2 11.2.3. Potential Impacts of the Proposed Project ........................................................... 11-2 11.2.4. Mitigation Measures ............................................................................................ 11-3 11.3. Sanitary Sewer ......................................................................................................... 11-3 11.3.1. Existing Conditions ............................................................................................. 11-3 11.3.2. Future without the Proposed Project .................................................................... 11-3 11.3.3. Potential Impacts of the Proposed Project ........................................................... 11-3 11.3.4. Mitigation Measures ............................................................................................ 11-4 11.4. Energy Usage (Electricity and Gas) ........................................................................ 11-5 11.4.1. Existing Conditions ............................................................................................. 11-5 11.4.2. Future without the Proposed Project .................................................................... 11-5 11.4.3. Potential Impacts of the Proposed Project ........................................................... 11-5 11.4.4. Mitigation Measures ............................................................................................ 11-5 12: Traffic and Transportation .............................................................................................. 12-1 12.1. Introduction and Summary of Findings ................................................................... 12-1 12.2. Methodology............................................................................................................ 12-1 12.3. Existing Conditions ................................................................................................. 12-2 12.3.1. Traffic and Level of Service Analysis ................................................................. 12-2 12.3.2. Pedestrian Counts ................................................................................................ 12-3 900 King Street Redevelopment 9/12/2018 TOC-8 DEIS 12.4. Future without the Proposed Project ........................................................................ 12-3 12.5. Potential Impacts of the Proposed Project ............................................................... 12-4 12.5.1. Site-Generated Traffic .......................................................................................... 12-4 12.5.2. Traffic and Capacity Analysis for the Future with the Proposed Project ............. 12-5 12.5.3. Signal Retimings .................................................................................................. 12-5 12.5.4. Public Transportation ........................................................................................... 12-6 12.5.5. Pedestrian Circulation .......................................................................................... 12-6 12.5.6. Accident Patterns ................................................................................................. 12-6 12.6. Mitigation Measures ................................................................................................ 12-7 13: Air Quality ......................................................................................................................... 13-1 13.1. Introduction and Summary of Findings ................................................................... 13-1 13.2. Existing Conditions .................................................................................................. 13-1 13.3. Future without the Proposed Project ........................................................................ 13-2 13.4. Potential Impacts of the Proposed Project ............................................................... 13-3 13.4.1. Stationary Source Analysis .................................................................................. 13-3 13.4.2. Mobile Source Analysis ....................................................................................... 13-4 13.4.2.1. CO Screening Criteria ................................................................................. 13-5 13.4.2.2. LOS Screening Analysis ............................................................................. 13-6 13.4.2.3. Capture Criteria Screening Analysis ........................................................... 13-6 13.4.2.4. Volume Threshold Screening ..................................................................... 13-6 13.5. Mitigation Measures ................................................................................................ 13-6 14: Noise ................................................................................................................................... 14-1 14.1. Introduction .............................................................................................................. 14-1 14.1.1. Methodology ........................................................................................................ 14-1 14.1.1.1. Impact Criteria ............................................................................................ 14-1 14.1.1.2. Mobile Source Noise Methodology ............................................................ 14-2 14.2. Existing Conditions .................................................................................................. 14-2 14.2.1. Selection of Noise Receptors Locations .............................................................. 14-2 14.2.2. Existing Noise Level Measurements .................................................................... 14-3 14.2.3. Equipment Used for Noise Monitoring ................................................................ 14-3 14.2.4. Results of Measurements ..................................................................................... 14-4 14.3. Future without the Proposed Project ........................................................................ 14-4 14.4. Potential Impacts of the Proposed Project ............................................................... 14-5 14.4.1. Mobile Sources .................................................................................................... 14-5 14.4.2. Noise Levels at the Arbors Townhouses .............................................................. 14-6 14.4.3. Noise Levels at the 900 King Street Residences .................................................. 14-6 14.4.4. Stationary Source Analysis .................................................................................. 14-7 14.5. Mitigation Measures ................................................................................................ 14-7 15: Hazardous Materials ........................................................................................................ 15-1 15.1. Introduction and Summary of Findings ................................................................... 15-1 15.2. Existing Conditions .................................................................................................. 15-1 15.2.1. Phase I Environmental Site Assessment .............................................................. 15-1 15.2.2. Phase II Environmental Site Assessment ............................................................. 15-2 15.3. Potential Impacts of the Proposed Project ............................................................... 15-3 15.4. Mitigation Measures ................................................................................................ 15-4 Table of Contents DEIS TOC-9 9/12/2018 16: Construction ...................................................................................................................... 16-1 16.1. Introduction ............................................................................................................. 16-1 16.2. Construction Phasing ............................................................................................... 16-2 16.2.1. Phase 1: Demolition ............................................................................................. 16-3 16.2.2. Phase 2: Road and Site Utilities ........................................................................... 16-4 16.2.3. Phase 3, 4, 5, and 6: Buildings Construction ....................................................... 16-4 16.2.3.1. Phase 3: Assisted Living ............................................................................ 16-5 16.2.3.2. Phase 4: Independent Living Center Core .................................................. 16-5 16.2.3.3. Phase 5: Independent Living Center South Wings ..................................... 16-5 16.2.3.4. Phase 6: Townhouses ................................................................................. 16-6 16.2.4. Phase 7: Site Restoration ..................................................................................... 16-6 16.3. Construction Period Impacts and Mitigation ........................................................... 16-6 16.3.1. Erosion and Sediment Control Plan ..................................................................... 16-6 16.3.2. Traffic and Transportation ................................................................................... 16-8 16.3.2.1. Construction Period Trip Generation ......................................................... 16-8 16.3.2.2. Construction Traffic Analysis .................................................................... 16-9 16.3.2.3. Construction Truck Traffic ......................................................................... 16-9 16.3.2.4. Potential Traffic Impacts On Blind Brook Middle/High School .............. 16-10 16.3.3. Air Quality ......................................................................................................... 16-11 16.3.3.1. Emission Control Measures ...................................................................... 16-12 16.3.3.2. Duration and Intensity of Construction Activities .................................... 16-13 16.3.3.3. Location of Nearby Sensitive Receptors .................................................. 16-13 16.3.3.4. On-Road Sources ...................................................................................... 16-14 16.3.3.5. Conclusion ................................................................................................ 16-14 16.3.4. Noise .................................................................................................................. 16-14 16.3.4.1. Construction Noise Analysis Fundamentals ............................................. 16-15 16.3.4.2. Construction Noise Analysis Methodology .............................................. 16-16 16.3.4.3. Construction Noise Impact Criteria .......................................................... 16-16 16.3.4.4. Noise Receptor Locations ......................................................................... 16-17 16.3.4.5. Noise Reduction Measures ....................................................................... 16-17 16.3.4.6. Mobile Source Construction Noise Analysis ............................................ 16-18 16.3.4.7. On-Site Construction Noise Analysis ....................................................... 16-18 16.3.4.8. Conclusions .............................................................................................. 16-25 17: Alternatives ....................................................................................................................... 17-1 17.1. No Action ................................................................................................................ 17-1 17.1.1. Land Use, Zoning, and Public Policy .................................................................. 17-1 17.1.1.1. Consistency with the PUD Zoning District ................................................ 17-1 17.1.1.2. Consistency with the Scenic Road Overlay District ................................... 17-5 17.1.1.3. Consistency with the Comprehensive Plan ................................................ 17-5 17.1.2. Geologly, Soils, and Topography ........................................................................ 17-9 17.1.3. Waters and Wetlands ........................................................................................... 17-9 17.1.4. Stormwater Management ................................................................................... 17-10 17.1.5. Vegetation and Wildlife ..................................................................................... 17-10 17.1.6. Visual Resources and Community Character .................................................... 17-10 17.1.7. Socioeconomic and Fiscal Impacts .................................................................... 17-10 17.1.8. Community Facilities......................................................................................... 17-10 17.1.9. Infrastructure and Utilities ................................................................................. 17-11 900 King Street Redevelopment 9/12/2018 TOC-10 DEIS 17.1.10. Traffic and Transportation ................................................................................. 17-11 17.1.11. Air Quality and Noise ........................................................................................ 17-12 17.1.12. Hazardous Materials .......................................................................................... 17-12 17.1.13. Construction ...................................................................................................... 17-12 17.2. Residential (Non-Age-Restricted) Development Under the Existing PUD Regulations 17-12 17.2.1. Land Use, Zoning, and Public Policy ................................................................. 17-12 17.2.2. Geologly, Soils, and Topography....................................................................... 17-13 17.2.3. Waters and Wetlands ......................................................................................... 17-13 17.2.4. Stormwater Management ................................................................................... 17-14 17.2.5. Vegetation and Wildlife ..................................................................................... 17-14 17.2.6. Visual Resources and Community Character .................................................... 17-14 17.2.7. Socioeconomic and Fiscal Impacts .................................................................... 17-15 17.2.8. Community Facilities ......................................................................................... 17-15 17.2.9. Infrastructure and Utilities ................................................................................. 17-16 17.2.10. Traffic and Transportation ................................................................................. 17-17 17.2.11. Air Quality and Noise ........................................................................................ 17-17 17.2.12. Hazardous Materials .......................................................................................... 17-17 17.2.13. Construction ...................................................................................................... 17-17 17.2a. Residential (Non-Age-Restricted) Development Under the Existing PUD Regulations With Greater Gross Floor Area ............................................................................. 17-18 17.3. Senior Living Facility Development Under the Existing PUD Regulations .......... 17-18 17.3.1. Land Use, Zoning, and Public Policy ................................................................. 17-18 17.3.2. Visual Resources and Community Character .................................................... 17-19 17.3.3. Socioeconomic and Fiscal Impacts .................................................................... 17-19 17.3.4. Community Facilities ......................................................................................... 17-19 17.4. Reduced Density Proposed Project ........................................................................ 17-19 17.4.1. Land Use, Zoning, and Public Policy ................................................................. 17-20 17.4.2. Geologly, Soils, and Topography....................................................................... 17-20 17.4.3. Waters and Wetlands ......................................................................................... 17-21 17.4.4. Stormwater Management ................................................................................... 17-21 17.4.5. Vegetation and Wildlife ..................................................................................... 17-21 17.4.6. Visual Resources and Community Character .................................................... 17-21 17.4.7. Socioeconomic and Fiscal Impacts .................................................................... 17-22 17.4.8. Community Facilities ......................................................................................... 17-22 17.4.9. Infrastructure and Utilities ................................................................................. 17-23 17.4.10. Traffic and Transportation ................................................................................. 17-23 17.4.11. Air Quality and Noise ........................................................................................ 17-23 17.4.12. Hazardous Materials .......................................................................................... 17-23 17.4.13. Construction ...................................................................................................... 17-23 17.5. Reduced Size Proposed Project ............................................................................. 17-24 17.5.1. Land Use, Zoning, and Public Policy ................................................................. 17-25 17.5.2. Geologly, Soils, and Topography....................................................................... 17-26 17.5.3. Waters and Wetlands ......................................................................................... 17-26 17.5.4. Stormwater Management ................................................................................... 17-26 17.5.5. Vegetation and Wildlife ..................................................................................... 17-26 17.5.6. Visual Resources and Community Character .................................................... 17-27 17.5.7. Socioeconomic and Fiscal Impacts .................................................................... 17-27 17.5.8. Community Facilities ......................................................................................... 17-28 Table of Contents DEIS TOC-11 9/12/2018 17.5.9. Infrastructure and Utilities ................................................................................. 17-28  17.5.10. Traffic and Transportation ................................................................................ 17-28  17.5.11. Air Quality and Noise ....................................................................................... 17-28  17.5.12. Hazardous Materials .......................................................................................... 17-28  17.5.13. Construction ...................................................................................................... 17-28  17.6. Proposed Project With No Change to Minimum Age for Residents ..................... 17-28  17.6.1. Land Use, Zoning, and Public Policy ................................................................ 17-29  17.6.2. Community Facilities ......................................................................................... 17-29 18: Unavoidable Adverse Impacts ......................................................................................... 18-1  18.1. Construction Period Noise Impacts ......................................................................... 18-1 18.2. Construction Worker Peak Arrival Hour ................................................................. 18-2 19: Irreversible and Irretrievable Commitments of Resources .......................................... 19-1  20: Growth-Inducing Impacts ............................................................................................... 20-1  21: Cumulative Impacts ......................................................................................................... 21-1  21.1. Cumulative Traffic and Transportation Impacts...................................................... 21-1 21.2. Cumulative Impacts to School District .................................................................... 21-1 21.3. Emergency Services ................................................................................................ 21-2 LIST OF APPENDICES (printed in Volume 3) Appendix A: Procedural Information Appendix A-1: Approved DEIS Scoping Outline Appendix A-2: PUD Concept Plan and Preliminary Site Plan Checklists Appendix A-3: Revised Proposed Zoning Appendix A-4: Full Size Plans Appendix A-5: Annotated Positive Declaration Appendix B: Current Site Information Appendix B-1: Property Card Appendix B-2: Finding of Zoning Compliance Appendix B-3: Current Deed, Covenants, and Restrictions Appendix B-4: Existing Building Sections and Elevations Appendix C: Stormwater Appendix C-1: Stormwater Pollution Prevention Plan Appendix C-2: Downstream Storm Sewer Analysis 900 King Street Redevelopment 9/12/2018 TOC-12 DEIS Appendix D: Natural Resources Appendix D-1: EAF Mapper & IPaC Reports Appendix D-2: Wetland Delineation Report Appendix D-3: Vegetation Observed On-Site Appendix D-4: Tree Survey with Condition Appendix D-5: Wetland Functional Assessment Appendix E: Correspondence Appendix E-1: Correspondence with Emergency Service Providers Appendix E-2: Correspondence with School Districts Appendix E-3: Infrastructure and Utilities Correspondence Appendix E-4: Correspondence with Town Tax Assessor Appendix EE: Sanitary Sewer Capacity Appendix F: Traffic Impact Study Appendix G: Noise Fundamentals Appendix H: Environmental Site Assessments Appendix H-1: Phase I Environmental Site Assessment Appendix H-2: Phase II Environmental Site Assessment Appendix I: Preliminary Geotechnical Engineering Report Appendix J: Construction Period Noise Analysis DEIS TOC-13 9/12/2018 List of Tables 1-1 Proposed Building Sizes ................................................................................................ 1-4 1-2 Trip Generation Comparison ....................................................................................... 1-26 1-3 Reduced Density Alternative Program ........................................................................ 1-28 1-4 Reduced Size Alternative Program .............................................................................. 1-30 1-5 Required Approvals ..................................................................................................... 1-31 2-1 Existing PUD Requirements .......................................................................................... 2-3 2-2 Bulk and Area Requirements Comparison .................................................................... 2-4 2-3 Proposed Building Sizes ................................................................................................ 2-5 2-4 Anticipated Staffing Levels ........................................................................................... 2-8 2-5 Proposed Parking for the Project ................................................................................. 2-10 2-6 Required Approvals ..................................................................................................... 2-14 3-1 Existing PUD Requirements .......................................................................................... 3-2 3-2 Comparison of PUD Density and Height Requirements ............................................... 3-5 3-3 Proposed Additional PUD Dimensional Requirements ................................................. 3-6 3-4 Other PUD Requirements .............................................................................................. 3-9 4-1 On-Site Soils .................................................................................................................. 4-2 4-2 Steep Slopes Analysis .................................................................................................... 4-3 4-3 Cut-and-Fill Analysis ..................................................................................................... 4-5 4-4 Proposed Steep Slopes ................................................................................................... 4-6 5-1 Current Condition of On-Site Wetland Buffers ............................................................. 5-5 5-2 Proposed Changes to Wetland 100-Foot Buffers On-Site ............................................. 5-6 6-1 Existing Peak Runoff Rates ........................................................................................... 6-2 6-2 Existing Runoff Volume ................................................................................................ 6-3 6-3 Proposed Peak Runoff Rate ........................................................................................... 6-4 6-3 Proposed Runoff Volume .............................................................................................. 6-4 7-1 Habitats of the Project Site ............................................................................................ 7-2 7-2 Habitats of the Project Site ............................................................................................ 7-4 7-3 Significant Trees Proposed to Be Removed .................................................................. 7-4 900 King Street Redevelopment 9/12/2018 TOC-14 DEIS 7-4 Tree Removal Mitigation ............................................................................................... 7-5 8-1 Open Space on the Project Site .................................................................................... 8-12 8-2 Parcel Coverage Comparison ....................................................................................... 8-19 9-1 Population, 1980 to 2016 ............................................................................................... 9-2 9-2 Percent Change in Population, 1980 to 2016 ................................................................. 9-2 9-3 Population Density 1990 to 2016 ................................................................................... 9-3 9-4 Median Age, 2000 to 2016 ............................................................................................. 9-3 9-5 Median Household Income, 2000 to 2016 ..................................................................... 9-4 9-6 Occupancy Tenure, 2000 to 2016................................................................................... 9-5 9-7 Housing Units in Structure, 2016 ................................................................................... 9-5 9-8 Historical Property Tax Revenue of the Project Site...................................................... 9-6 9-9 Projected Property Tax Revenue of the Proposed Project.............................................. 9-8 10-1 EMS Budget History .................................................................................................... 10-2 10-2 EMS Response to the Project Site ................................................................................ 10-3 10-3 Police Response to the Project Site .............................................................................. 10-4 10-4 Police Responses to the Atria ....................................................................................... 10-4 10-5 EMS and Fire Responses to The Atria Rye Brook ....................................................... 10-4 10-6 Blind Brook-Rye Union Free School District .............................................................. 10-9 10-7 Public School Enrollment for 55+ Residential Communities .................................... 10-10 10-8 New York State Recreation Facility Design Guidelines ............................................ 10-12 10-9 New York State Recommended Available Open Space............................................. 10-12 10-10 On-Site Recreation Areas ........................................................................................... 10-13 10-11 Proposed Project Solid Waste Generation .................................................................. 10-16 11-1 Estimated Water/Sanitary Generation .......................................................................... 11-2 12-1 Pedestrian Counts ......................................................................................................... 12-3 12-2 As-of-Right Trip Generation ........................................................................................ 12-4 12-3 Anticipated Site-Generated Traffic .............................................................................. 12-4 12-4 Level of Service Summary ........................................................................................... 12-5 13-1 Representative Monitored Ambient Air Quality Data ................................................. 13-2 13-2 Maximum Modeled Pollutant Concentrations from HVAC Systems .......................... 13-4 14-1 Noise Monitoring Sites................................................................................................. 14-3 14-2 Existing Noise Levels At Noise Receptor Sites (dBA) ................................................ 14-4 14-3 Build Condition Noise Levels (dBA) ........................................................................... 14-5 List of Tables DEIS TOC-15 9/12/2018 14-4 Build Condition Noise Levels (dBA) .......................................................................... 14-6 16-1 Typical Construction Phase Noise Emission Levels (dBA) ...................................... 16-15 16-2 Average Ability to Perceive Changes in Noise Levels .............................................. 16-17 16-3 Construction Noise Receptor Areas ........................................................................... 16-17 16-4 Estimated Maximum Construction Noise Summary (in dBA) .................................. 16-20 17-1 Alternatives Impact Comparison ................................................................................. 17-3 17-2 Peak Hour Trip Generation .......................................................................................... 17-4 17-3 Trip Generation Comparison ..................................................................................... 17-11 17-4 Residential As-of-Right Population ........................................................................... 17-15 17-5 New York State Recommended Available Open Space for As-of-Right Residential Development .............................................................................................................. 17-16 17-6 Reduced Density Alternative Program ...................................................................... 17-20 17-7 Projected Property Tax Revenue of the Reduced Density Alternative ...................... 17-22 17-8 Reduced Size Alternative Program ............................................................................ 17-24 DEIS TOC-16 9/12/2018 List of Figures Printed Figures in Volume 2 In Electronic copy, Figures follow end of chapter text 1: Executive Summary 1-1 Project Location 1-2 Project Site Aerial 1-3 Wetlands and Waterbodies 1-4 Site Plan 1-5 Proposed Site Circulation 1-6 Existing and Proposed Pedestrian Paths 1-7 Wetland Buffer Disturbance 1-8 Non-Age Restricted As-of-Right Residential Alternative 1-9 Reduced Density Alternative 1-10 Reduced Size Alternative 2: Project Description 2-1 Project Location 2-2 Project Site Aerial 2-3 Existing Site Condition 2-4 Existing Site Condition 2-5 Wetlands and Waterbodies 2-6 Existing Site Condition 2-7 Site Plan 2-7a Project Site Sections 2-7b Project Site Sections 2-8 Independent Living and Assisted Living — First Floor Plan 2-9 Independent Living and Assisted Living — Typical Floor Plan 2-10 Independent Living and Assisted Living — Fourth Floor Plan 2-11 Proposed Building Height 2-12 IL/AL Typical Sections 2-13 Townhouse Floorplans 2-14 Townhouse Elevations 2-15 Proposed Site Circulation 2-16 Truck Turning Template 2-17 Existing and Proposed Pedestrian Paths List of Figures DEIS TOC-17 9/12/2018 2-18 Steep Slopes 2-19 Proposed Steep Slope Condition 3: Land Use, Public Policy, and Zoning 3-1 Zoning 3-2 Land Use 3-3 Detailed Zoning Comparison 4: Geology, Soils, and Topography 4-1 Existing Soil Conditions 4-2 Topography 4-3 Steep Slopes 4-4a Aerial Images of the Project Site Over Time 4-4b Aerial Images of the Project Site Over Time 4-4c Aerial Images of the Project Site Over Time 4-4d Aerial Images of the Project Site Over Time 4-4e Aerial Images of the Project Site Over Time 4-5 Proposed Steep Slope Condition 5: Waters and Wetlands 5-1 Wetlands and Waterbodies 5-2 Wetland Buffer Disturbance 5-3 Potential Wetland Buffer Mitigation Areas 6: Stormwater Management 6-1 Existing Drainage Area 6-2 Proposed Drainage Areas 8: Visual Resources and Community Character 8-1 On-Site Visual Character Locations 8-2 Locations A & B 8-3 Locations C & D 8-4 Locations E & F 8-5 Buildings, Roads, Parking Lots within ½-mile of the Project Site 8-6 Locations G & H 8-7 Location I 8-8 Vantage Point Locations 8-9 Existing and Proposed Conditions — Vantage Point 1 8-10 Existing and Proposed Conditions — Vantage Point 2 8-11 Existing and Proposed Conditions — Vantage Point 3 8-12 Existing and Proposed Conditions — Vantage Point 4a 900 King Street Redevelopment 9/12/2018 TOC-18 DEIS 8-13 Existing and Proposed Conditions — Vantage Point 4b 8-14 Existing and Proposed Conditions — Vantage Point 5 8-15 Existing and Proposed Conditions — Vantage Point 6 8-16 Existing and Proposed Conditions — Vantage Point 7 8-17 Existing and Proposed Conditions — Vantage Point 8a 8-18 Existing and Proposed Conditions — Vantage Point 8b 8-19 Existing and Proposed Conditions — Vantage Point 8c 8-20 Existing and Proposed Conditions — Vantage Point 9a 8-21 Existing and Proposed Conditions — Vantage Point 9b 8-22 Neighborhoods within a ½-Mile from the Project Site 8-23 Typical Single-Family Home in the Fairlawn Parkway Neighborhood 8-24 Building Footprints within ½-Mile of the Project Site 8-25 The Arbors Neighborhood 8-26 Hillandale Road Neighborhood 8-27 Glenville Town Center Commercial 8-28 Glenville Town Center Mixed-Use 8-29 Glen Ridge Street Neighborhood 8-30 Pemberwick Road and Bishop Drive Neighborhood 8-31 Photo of Atria Rye Brook 8-32 Doral Arrowwood and Hilton Westchester 8-33 800 Westchester Avenue 8-34 IL/AL Typical Sections 8-35a Project Site Sections 8-35b Project Site Sections 9: Socioeconomic and Fiscal Impacts 9-1 Persons per Acre, 2010 9-2 Age Distribution in Rye Brook, Rye, and Westchester (2016) 9-3a Impact on Base Proportions and Property Tax Rates 9-3b Impact on Base Proportions and Property Tax Rates 10: Community Facilities 10-1 Truck Turning Template 10-2 Emergency Access 10-3 Map of Open Space in the Village of Rye Brook 10-4 Open and Recreational Areas On-Site 10-5 Westchester County Refuse Disposal District #1 Map 12: Traffic and Transportation 12-1 Existing and Proposed Pedestrian Paths List of Figures DEIS TOC-19 9/12/2018 14: Noise 14-1 Noise Measurement Location 16: Construction 16-1 Conceptual Construction and Estimated Manpower Schedule 16-2 Construction Phase 1 16-3 Construction Phase 2 16-4 Construction Phase 3 16-5 Construction Phase 4 16-6 Construction Phase 5 16-7 Construction Phase 6 16-8 Construction Phase 7 17: Alternatives 17-1 Non-Age Restricted As-of-Right Residential Alternative 17-2 Non-Age Restricted As-of-Right Residential Alternative — Arbors Footprint 17-3 Reduced Density Alternative 17-4 Reduced Size Alternative 17-5 Reduced Size Alternative –– Typical Independent Living Floor Plan 