MOUNTAIN PARK
SPECIFIC PLAN AMENDMENT
DRAFT ENVIRONMENTAL IMPACT REPORT No. 331
SCH No. 2004071098
VOLUME I
March 2005
Lead Agency:
City of Anaheim
200 South Anaheim Boulevard
Anaheim, California 92803
Mountain Park Specific Plan Amendment
Draft Environmental Impact Report No. 331
SCH No. 2004071098
Prepared for:
City of Anaheim
Planning Department
200 South Anaheim Boulevard
Anaheim, California 92803
Contact: Ted White, Associate Planner
(714) 765-5139
Prepared by:
BonTerra Consulting
151 Kalmus Drive, Suite E-200
Costa Mesa, California 92626
Contact: Tina Andersen, Principal of Environmental Services (714) 444-9199
March 2005
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc i Table of Contents
TABLE OF CONTENTS
Section Page
1 Executive Summary .......................................................................................................1-1
1.1 Introduction.........................................................................................................1-1
1.2 Project Summary................................................................................................1-1
1.3 Summary of Project Impacts ..............................................................................1-3
1.4 Project Alternatives ............................................................................................1-4
1.4.1 Land Use Plan Alternatives.................................................................1-4
1.4.2 Infrastructure Design Alternatives .......................................................1-6
1.4.3 Alternatives Eliminated from Detailed Consideration ..........................1-7
1.5 Areas of Controversy and Issues to be Resolved ..............................................1-8 2 Introduction ....................................................................................................................2-1
2.1 Purpose of the Draft Program EIR......................................................................2-1
2.2 Project Background ............................................................................................2-2
2.3 EIR Focus and Effects Found Not to be Significant ...........................................2-3
2.3.1 Scoping Process .................................................................................2-3
2.3.2 Effects Found Not to be Significant.....................................................2-5
2.4 Project Sponsors and Contact Persons..............................................................2-7
2.5 Review of the Draft EIR......................................................................................2-8 3 Project Description .........................................................................................................3-1
3.1 Project Location..................................................................................................3-1
3.2 Environmental Setting ........................................................................................3-1
3.3 Project Description .............................................................................................3-4
3.3.1 Proposed Specific Plan and Zoning Code Amendments ....................3-4
3.3.2 Project Development Components .....................................................3-5
3.3.3 Project Phasing.................................................................................3-28
3.3.4 Off-site Project Features ...................................................................3-29
3.3.5 Caltrans-related Project Features .....................................................3-33
3.4 Homeowners Association.................................................................................3-35
3.5 Project Objectives ............................................................................................3-35
3.6 Description of Project Impact Area...................................................................3-36
3.7 Basis for Cumulative Impact Analysis ..............................................................3-39
3.8 Intended Use of the EIR ...................................................................................3-42
3.8.1 City of Anaheim.................................................................................3-42
3.8.2 Responsible and Trustee Agencies ..................................................3-43 4 Existing Conditions, Project Impact Analysis, Mitigation Program, Cumulative Impacts and Level of Significance After Mitigation......................................4-1
4.1 Land Use and Planning ...................................................................................4.1-1
4.1.1 Existing Conditions...........................................................................4.1-1
4.1.2 Project Impact Analysis....................................................................4.1-6
4.1.3 Mitigation Program.........................................................................4.1-15
4.1.4 Cumulative Impacts........................................................................4.1-15
4.1.5 Level of Significance After Mitigation .............................................4.1-16
4.2 Landform and Aesthetics.................................................................................4.2-1
4.2.1 Existing Conditions...........................................................................4.2-1
4.2.2 Project Impact Analysis....................................................................4.2-9
4.2.3 Mitigation Program.........................................................................4.2-26
4.2.4 Cumulative Impacts........................................................................4.2-27
4.2.5 Level of Significance After Mitigation .............................................4.2-28
4.3 Geology and Soils ...........................................................................................4.3-1
4.3.1 Existing Conditions...........................................................................4.3-1 Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE OF CONTENTS
(Continued)
Section Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc ii Table of Contents
4.3.2 Project Impact Analysis....................................................................4.3-6
4.3.3 Mitigation Program.........................................................................4.3-20
4.3.4 Cumulative Impacts........................................................................4.3-24
4.3.5 Level of Significance After Mitigation .............................................4.3-24
4.4 Hydrology ........................................................................................................4.4-1
4.4.1 Existing Conditions...........................................................................4.4-1
4.4.2 Project Impact Analysis..................................................................4.4-13
4.4.3 Mitigation Program.........................................................................4.4-45
4.4.4 Cumulative Impacts........................................................................4.4-47
4.4.5 Level of Significance After Mitigation .............................................4.4-48
4.5 Water Quality...................................................................................................4.5-1
4.5.1 Existing Conditions...........................................................................4.5-1
4.5.2 Project Impact Analysis..................................................................4.5-10
4.5.3 Mitigation Program.........................................................................4.5-48
4.5.4 Cumulative Impacts........................................................................4.5-53
4.5.5 Level of Significance After Mitigation .............................................4.5-53
4.6 Biological Resources.......................................................................................4.6-1
4.6.1 Relationship to the Orange County NCCP/HCP ..............................4.6-1
4.6.2 Methodology.....................................................................................4.6-3
4.6.3 Existing Conditions...........................................................................4.6-3
4.6.4 Project Impact Analysis..................................................................4.6-40
4.6.5 Mitigation Program.........................................................................4.6-60
4.6.6 Cumulative Impacts........................................................................4.6-65
4.6.7 Level of Significance After Mitigation .............................................4.6-66
4.7 Traffic and Circulation .....................................................................................4.7-1
4.7.1 Existing Conditions...........................................................................4.7-1
4.7.2 Project and Cumulative Impact Analysis........................................4.7-13
4.7.3 Mitigation Program.........................................................................4.7-36
4.7.4 Cumulative Impacts........................................................................4.7-39
4.7.5 Level of Significance After Mitigation .............................................4.7-39
4.8 Air Quality........................................................................................................4.8-1
4.8.1 Existing Conditions...........................................................................4.8-1
4.8.2 Project Impact Analysis..................................................................4.8-12
4.8.3 Mitigation Program.........................................................................4.8-23
4.8.4 Cumulative Impacts........................................................................4.8-26
4.8.5 Level of Significance After Mitigation .............................................4.8-27
4.9 Noise ...............................................................................................................4.9-1
4.9.1 Noise Characteristics .......................................................................4.9-1
4.9.2 Existing Conditions...........................................................................4.9-3
4.9.3 Project Impact Analysis....................................................................4.9-8
4.9.4 Cumulative Impacts........................................................................4.9-25
4.9.5 Mitigation Program.........................................................................4.9-27
4.10 Hazards and Hazardous Materials ................................................................4.10-1
4.10.1 Existing Conditions.........................................................................4.10-2
4.10.2 Project Impact Analysis..................................................................4.10-7
4.10.3 Mitigation Program.......................................................................4.10-14
4.10.4 Cumulative Impacts......................................................................4.10-15
4.10.5 Level of Significance After Mitigation ...........................................4.10-16
4.11 Population and Housing ................................................................................4.11-1 Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE OF CONTENTS
(Continued)
Section Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc iii Table of Contents
4.11.1 Existing Conditions.........................................................................4.11-1
4.11.2 Project Impact Analysis..................................................................4.11-9
4.11.3 Mitigation Program.......................................................................4.11-19
4.11.4 Cumulative Impacts......................................................................4.11-19
4.11.5 Level of Significance After Mitigation ...........................................4.11-20
4.12 Public Services and Utilities ..........................................................................4.12-1
4.12.1 Fire Protection Services.................................................................4.12-1
4.12.2 Police Services...............................................................................4.12-4
4.12.3 Schools ..........................................................................................4.12-6
4.12.4 Water............................................................................................4.12-10
4.12.5 Sanitary Sewer.............................................................................4.12-15
4.12.6 Electricity......................................................................................4.12-22
4.12.7 Natural Gas..................................................................................4.12-27
4.12.8 Telephone Service .......................................................................4.12-29
4.12.9 Cable Television Service/Reception ............................................4.12-30
4.12.10 Solid Waste..................................................................................4.12-31
4.12.11 Library Services ...........................................................................4.12-35
4.12.12 Relevant Planning Programs .......................................................4.12-37
4.12.13 Cumulative Impacts......................................................................4.12-40
4.12.14 Level of Significance After Mitigation ...........................................4.12-40
4.13 Recreation .....................................................................................................4.13-1
4.13.1 Existing Conditions.........................................................................4.13-1
4.13.2 Project Impact Analysis..................................................................4.13-4
4.13.3 Mitigation Program.........................................................................4.13-9
4.13.4 Cumulative Impacts......................................................................4.13-10
4.13.5 Level of Significance After Mitigation ...........................................4.13-10
4.14 Cultural Resources........................................................................................4.14-1
4.14.1 Existing Conditions.........................................................................4.14-1
4.14.2 Project Impact Analysis..................................................................4.14-3
4.14.3 Mitigation Program.........................................................................4.14-6
4.14.4 Cumulative Impacts........................................................................4.14-8
4.14.5 Level of Significance After Mitigation .............................................4.14-8 5 Alternatives ....................................................................................................................5-1
5.1 Introduction.........................................................................................................5-1
5.1.1 Proposed Project Summary ................................................................5-1
5.1.2 Proposed Project Objectives...............................................................5-1
5.1.3 Summary of Proposed Project Impacts...............................................5-2
5.1.4 Alternatives to the Proposed Project...................................................5-3
5.2 Alternatives Eliminated from Detailed Consideration .........................................5-4
5.2.1 Alternative Site....................................................................................5-5
5.2.2 Residential Development with Commercial Use to
Support the Project .............................................................................5-5
5.2.3 Proposed Project with Alternative Circulation Concepts .....................5-8
5.3 Alternatives Carried Forward for Detailed Consideration .................................5-10
5.3.1 No Project/No Action Alternative.......................................................5-10
5.3.2 No Project/Development Pursuant to the Current
Mountain Park Specific Plan Alternative ...........................................5-16
5.3.3 Modified Land Use Plan Alternative..................................................5-24
5.3.4 Reduced Development Area Alternative ...........................................5-26 Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE OF CONTENTS
(Continued)
Section Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc iv Table of Contents
5.3.5 Reduced Development Area/Reduced Density Alternative...............5-33
5.3.6 Highly Concentrated Development Alternative .................................5-37
5.3.7 SR-241/Weir Canyon Road Half-Diamond Interchange....................5-43
5.3.8 East Basin Off-site Sanitary Sewer Connection Alternatives ............5-44
5.3.9 West Basin Off-site Sanitary Sewer Connection Alternatives ...........5-50
5.4 Environmentally Superior Alternative ...............................................................5-52 6 Long-term Implications of the Proposed Project ............................................................6-1
6.1 Any Significant Environmental Effects Which Cannot be Avoided if the Proposed Project is Implemented..............................................................6-1
6.2 Significant Irreversible Environmental Changes Which Would be Caused by the Proposed Project Should It be Implemented..............................6-2
6.3 Growth-Inducing Impacts of the Proposed Project.............................................6-2 7 List of EIR Preparers and Contributors ..........................................................................7-1
7.1 City of Anaheim ..................................................................................................7-1
7.2 BonTerra Consulting (EIR Preparation)..............................................................7-1
7.3 Contributors........................................................................................................7-2 8 References.....................................................................................................................8-1 Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc v List of Appendices
LIST OF APPENDICES
Appendix
A Notice of Preparation (NOP), Initial Study, NOP Responses, and Scoping Comments B Updated Preliminary Geotechnical Investigation
C Runoff Management Plan
Groundwater Report
D Water Quality Technical Report
E Biological Resources Assessment
F Wetlands Delineation
Habitat Assessment
Mitigation Plan
G Traffic and Circulation Technical Report
H Air Quality Technical Report
I Noise Technical Report
J Environmental Site Assessment
Environmental Site Characterization Report
K Orange Unified School District Mitigation Agreement
L Domestic Water Distribution System Sub Area Master Plan M Water Supply Assessment
N Project Sewer Study
O Dry Utilities Reports
P Cultural Resources Survey and Assessment
Q SR-241/Weir Canyon Road Interchange and Mountain Park Drive Bridge Overcrossing Technical Reports
R Preliminary Fire Master Plan
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc vi List of Tables
LIST OF TABLES
Table Page
1-1 Summary of Environmental Impacts and Mitigation Program ................................1-10 3-1 Mountain Park Specific Plan Amendment Statistical Summary Table .....................3-6 3-2 Project Land Use and Impact Area Summary ........................................................3-38 3-3 City of Anaheim Residential Buildout Estimates ....................................................3-40 3-4 City of Anaheim Non-residential Buildout Estimates..............................................3-41
4.1-1 Consistency of the Proposed Project With Land Use-related Goals and Policies...............................................................................................4.1-10
4.2-1 Consistency of the Proposed Project With Aesthetics and Visual Resources Related Goals and Policies ....................................................4.2-23
4.3-1 Regional Fault Systems (Active Faults) ................................................................4.3-5
4.3-2 Cut and Fill Quantities...........................................................................................4.3-7
4.3-3 Summary of Geotechnical Constraints..................................................................4.3-8
4.3-4 Consistency of the Proposed Project With Geology and Soils-related Goals and Policies...............................................................................................4.3-19
4.4-1 SR-241 Drainage Culverts ....................................................................................4.4-5
4.4-2 Gypsum Canyon Sub-area Characteristics...........................................................4.4-6
4.4-3 100-Year Discharge at Gypsum Canyon Confluence Points ................................4.4-6
4.4-4 West Drainage Area Hydrology – 100-Year Storm Event .....................................4.4-7
4.4-5 East Drainage Area Hydrology – 100-Year Storm Event ......................................4.4-8
4.4-6 Existing SR-91/SR-241 Drainage Area .................................................................4.4-8
4.4-7 Existing SR-91/Gypsum Canyon Road Drainage Systems...................................4.4-9
4.4-8 Existing SR-91 Frontal Slope Drainage Area........................................................4.4-9
4.4-9 Estimated MUSLE Results for 100-Year Storm Event ........................................4.4-11
4.4-10 Estimated L.A. District Debris Method Results for Debris Yield for the 100-Year Storm Event.........................................................................................4.4-11
4.4-11 Development Area Type Distribution...................................................................4.4-15
4.4-12 Addendum No. 1 Pre- and Post-development Peak Flow for Gypsum Canyon..................................................................................................4.4-17
4.4-13 Gypsum Canyon 100-Year Discharge at Confluence Points ..............................4.4-18
4.4-14 SR-241 Culvert Post-development Conditions....................................................4.4-19
4.4-15 Pre- and Post-development 100-Year Discharge for the West Drainage Area............................................................................................4.4-19
4.4-16 Watershed and Drainage Area Summary ...........................................................4.4-21
4.4-17 Gypsum Canyon Primary Discharge Point Drainage Alterations (Acres)............4.4-23
4.4-18 Changes in Sheet Erosion for the 100-Year Storm Event...................................4.4-27
4.4-19 Changes in Debris Yield for the 100-Year Storm Event ......................................4.4-29
4.4-20 Measured Sediment Yield vs. Calculated Sediment Yields.................................4.4-30
4.4-21 HEC-RAS Hydraulic Simulation Results for Gypsum Canyon ............................4.4-33
4.4-22 Scour and Deposition of Gypsum Canyon Reach in 100-Year Storm Event ......4.4-35
4.4-23 HEC-RAS Hydraulic Simulation for Featherly Park.............................................4.4-36
4.4-24 HEC-RAS Hydraulic Simulation for SR-91 Triple Box Culvert ............................4.4-37
4.4-25 Scour and Deposition of Featherly Park Reach in 100-Year Storm Event..........4.4-37
4.4-26 Development Area Elevations vs. 100-Year Floodplain......................................4.4-38
4.4-27 Summary of the Potential Reduction in Recharge from a Change in Land Surface Permeability by the Proposed Development .............................4.4-42
4.4-28 Consistency of the Proposed Project With Hydrology-related Goals and Policies...............................................................................................4.4-43
4.5-1 Beneficial Uses of Receiving Waters ....................................................................4.5-2
4.5-2 Monitoring Data for Santa Ana River Reach 2 ......................................................4.5-3 Mountain Park Specific Plan Amendment
Draft EIR No. 331
LIST OF TABLES
(Continued)
Table Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc vii List of Tables
4.5-3 Predicted Mean Annual Storm Water Runoff Volumes .......................................4.5-21
4.5-4 Predicted Average Annual TSS Loads................................................................4.5-21
4.5-5 Predicted Average Annual TSS Concentrations .................................................4.5-21
4.5-6 Comparison of Predicted TSS Concentrations with Water Quality Criteria and Observed Concentrations in Santa Ana River..............................................4.5-22
4.5-7 Predicted Average Annual Nitrate Loads ............................................................4.5-23
4.5-8 Predicted Average Annual Nitrate Concentrations..............................................4.5-23
4.5-9 Predicted Average Annual TKN Loads................................................................4.5-23
4.5-10 Predicted Average Annual TKN Concentrations .................................................4.5-24
4.5-11 Predicted Average Annual Total Phosphorus Loads...........................................4.5-24
4.5-12 Predicted Average Annual Total Phosphorus Concentrations ............................4.5-24
4.5-13 Comparison of Predicted Nutrient Concentrations with Water Quality Criteria and Observed Concentrations in Santa Ana River .................................4.5-25
4.5-14 Predicted Average Annual Dissolved Copper Loads ..........................................4.5-26
4.5-15 Predicted Average Annual Dissolved Copper Concentrations ............................4.5-27
4.5-16 Predicted Average Annual Dissolved Lead Loads ..............................................4.5-27
4.5-17 Predicted Average Annual Dissolved Lead Concentrations................................4.5-27
4.5-18 Predicted Average Annual Dissolved Zinc Loads ...............................................4.5-27
4.5-19 Predicted Average Annual Dissolved Zinc Concentrations.................................4.5-28
4.5-20 Comparison of Predicted Trace Metals Concentrations with Water Quality Criteria and Observed Concentrations in Santa Ana River .................................4.5-29
4.5-21 Size Estimations for Water Quality Basins..........................................................4.5-36
4.5-22 Consistency of the Proposed Project With Water Quality-related Goals and Policies...............................................................................................4.5-47
4.6-1 Mountain Park Plant Communities........................................................................4.6-4
4.6-2 Mountain Park Plant Communities Covered Under the NCCP/HCP.....................4.6-6
4.6-3 Sensitive Plant Species Covered or Conditionally Covered by the NCCP/HCP and Observed Within the Mountain Park Project Site .....................4.6-14
4.6-4 Sensitive Plant Species Covered by the NCCP/HCP and Potentially Occurring Within the Mountain Park Project Site ................................................4.6-16
4.6-5 Sensitive Plant Species Not Covered by the NCCP/HCP but Observed Within the Mountain Park Project Site.................................................................4.6-17
4.6-6 Sensitive Plant Species Not Covered by the NCCP/HCP but With the Potential to Occur Within the Mountain Park Project Site ...................................4.6-19
4.6-7 Sensitive Wildlife Species Covered or Conditionally Covered by the NCCP/HCP and Observed Within the Mountain Park Project Site .....................4.6-22
4.6-8 Sensitive Wildlife Species Covered by the NCCP/HCP With the Potential to Occur Within the Mountain Park Project Site ...................................4.6-26
4.6-9 Sensitive Wildlife Species Not Covered by the NCCP/HCP but Observed Within the Mountain Park Project Site ................................................4.6-28
4.6-10 Sensitive Wildlife Species Not Covered by the NCCP/HCP with the Potential to Occur Within the Mountain Park Project Site ...................................4.6-30
4.6-11 Project Impacts to Plant Communities ................................................................4.6-53
4.6-12 Mountain Park Impacts to NCCP Covered Plant Communities...........................4.6-55
4.7-1 Volume/Capacity Ratio Level of Service Ranges..................................................4.7-3
4.7-2 Existing Peak Hour Intersection LOS Summary....................................................4.7-5
4.7-3 Existing Freeway/Tollroad Mainline Peak Hour LOS Summary ............................4.7-6
4.7-4 Existing Freeway Ramp Peak Hour LOS Summary..............................................4.7-7 Mountain Park Specific Plan Amendment
Draft EIR No. 331
LIST OF TABLES
(Continued)
Table Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc viii List of Tables
4.7-5 Existing Arterial Roadway Traffic Volume Summary (Tuesday-Thursday Versus Friday Counts)...........................................................................................4.7-8
4.7-6 Existing PM Peak Hour Intersection LOS Summary (Tuesday-Thursday Versus Friday Counts)...........................................................................................4.7-9
4.7-7 Summary of Committed and Non-committed Circulation System Improvements in the Study Area.........................................................................4.7-10
4.7-8 Mountain Park Specific Plan Trip Rate Summary ...............................................4.7-14
4.7-9 Mountain Park Specific Plan Land Use and Trip Generation Summary..............4.7-15
4.7-10 Comparison of Intersection Performance Under Existing Conditions and Future Traffic Analysis Scenarios........................................................................4.7-19
4.7-11 Comparison of Freeway/Tollroad Mainline Performance Under Existing Conditions and Future Traffic Analysis Scenarios...............................................4.7-21
4.7-12 Comparison of Freeway/Tollroad Ramp Performance Under Existing Conditions and Future Traffic Analysis Scenarios...............................................4.7-22
4.7-13 Consistency of the Proposed Project With Traffic and Circulation-related Goals and Policies...............................................................................................4.7-31
4.8-1 Federal and State CO Standards..........................................................................4.8-2
4.8-2 Air Quality levels Measured at the La Habra Monitoring Station...........................4.8-5
4.8-3 Air Quality Levels Measured at the Anaheim Monitoring Station ..........................4.8-6
4.8-4 Air Quality Levels Measured at the Mission Viejo Monitoring Station ...................4.8-7
4.8-5 Existing CO Concentrations (ppm)........................................................................4.8-9
4.8-6 Annual Reported Air Pollutant Emissions from Quarry Uses ..............................4.8-10
4.8-7 Daily Air Pollutant Emissions from Existing Uses Not Reported to SCAQMD ....4.8-11
4.8-8 Total Daily Air Pollutant Emissions from Existing Uses.......................................4.8-11
4.8-9 SCAQMD Regional Pollutant Emission Thresholds of Significance....................4.8-12
4.8-10 Air Pollutant Emissions during Grading...............................................................4.8-14
4.8-11 Worst Case Projections of CO Concentrations (ppm).........................................4.8-15
4.8-12 Modeled CO Concentrations at Receptors on Project Site .................................4.8-17
4.8-13 Total Project Emissions.......................................................................................4.8-18
4.8-14 Comparison of Project Emissions with SCAB Emissions....................................4.8-19
4.8-15 Consistency of the Proposed Project with Air Quality-related Goals and Policies...............................................................................................4.8-21
4.9-1 Ambient Noise Measurements (dBA)....................................................................4.9-4
4.9-2 Existing Roadway Traffic Noise Levels .................................................................4.9-6
4.9-3 Traffic Noise CNEL Changes Due to the Project (dB).........................................4.9-16
4.9-4 Ultimate Traffic Noise Levels Impacting the Project Site.....................................4.9-19
4.9-5 Consistency of the Proposed Project with Noise Related Goals and Policies ....4.9-24
4.9-6 Cumulative Traffic Noise CNEL Changes Over Existing Conditions (dB) ...........4.9-25
4.10-1 Consistency of the Proposed Project With Goals and Policies Related to Hazards and Hazardous Materials....................................................................4.10-12
4.11-1 Orange County Population, Housing and Employment, 1980-2000....................4.11-1
4.11-2 City of Anaheim Population, Housing and Employment, 1980-2000...................4.11-2
4.11-3 OCP-2000 Projections for Orange County and OCP-2000 Updated with General Plan Land Uses for the City of Anaheim, 2000-2025 ............................4.11-3
4.11-4 City of Anaheim 2000 Housing Units by Type.....................................................4.11-5
4.11-5 City of Anaheim Regional Housing Needs Assessment Targets, 2000-2005 .....4.11-6
4.11-6 Proposed Project Net Growth Compared with Orange County, City of Anaheim, and RSA B-41........................................................................4.11-10
4.11-7 Increase in Housing with the Proposed Project, 2000-2025 .............................4.11-11 Mountain Park Specific Plan Amendment
Draft EIR No. 331
LIST OF TABLES
(Continued)
Table Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc ix List of Tables
4.11-8 Summary of Regional and Local Jobs/Housing Ratios, 2000 and 2025 ...........4.11-14
4.11-9 Consistency of the Proposed Project with Population and Housing-related Goals and Policies.............................................................................................4.11-17
4.12-1 Fire Protection Facilities......................................................................................4.12-2
4.12-2 Enrollment and Capacity of Schools Serving the Project Site.............................4.12-7
4.12-3 Student Yield Factors..........................................................................................4.12-8
4.12-4 Students Generated by the Proposed Project.....................................................4.12-8
4.12-5 Wastewater Generation Based on City of Anaheim Factors .............................4.12-18
4.12-6 Wastewater Generation Based on OCSD Factors............................................4.12-19
4.12-7 Estimated Electric Demand...............................................................................4.12-24
4.12-8 Projected Solid Waste Generation ....................................................................4.12-33
4.12-9 Consistency of the Proposed Project With Goals and Policies Related to Public Services and Utilities ..............................................................................4.12-37
4.13-1 Consistency of the Proposed Project With Park/Recreation-related Goals and Policies.........................................................................................................4.13-7 5-1 Commercial Alternative Statistical Land Use Summary ...........................................5-6 5-2 Commercial Alternative Trip Generation ..................................................................5-7 5-3 Impacts to Sensitive Vegetation Communities Approved Mountain Park Specific Plan (SP 90-4) ..........................................................................................5-19 5-4 Reduced Development Area Alternative Statistical Land Use Summary ...............5-27 5-5 Reduced Development Area Alternative Vegetation Communities Impacts ..........5-30 5-6 Reduced Development Area/Reduced Density Alternative Statistical Land Use Summary................................................................................................5-34 5-7 Reduced Development Area/Reduced Density Alternative Land Use and Trip Generation Summary .............................................................................................5-35 5-8 Highly Concentrated Development Area Alternative Statistical Land Use Summary................................................................................................................5-38 5-9 Comparison of Impacts of Alternatives to Proposed Project..................................5-54 Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc x List of Exhibits
LIST OF EXHIBITS
Exhibit Follows Page
3-1 Regional Location.....................................................................................................3-2 3-2 Aerial Perspective of the Project Area......................................................................3-2 3-3 Existing Topography.................................................................................................3-2 3-4 Development Plan....................................................................................................3-6 3-5 Vehicular Circulation Plan and Section Key Map .....................................................3-8 3-6a-e Proposed Roadway Cross-Sections.........................................................................3-8 3-7a-c Traffic Calming Features........................................................................................3-10 3-8 Open Space, Trail and Bikeway Plan.....................................................................3-10 3-9 Proposed Drainage System ...................................................................................3-14 3-10 Proposed Water Quality Implementation Plan .......................................................3-16 3-11 Water System Plan.................................................................................................3-18 3-12 Sanitary Sewer System Plan..................................................................................3-20 3-13 Dry Utilities Plan.....................................................................................................3-20 3-14a Landscape Concept Plan .......................................................................................3-22 3-14b Manufactured Slopes .............................................................................................3-22 3-15a-b Typical Fuel Modification Sections.........................................................................3-24 3-16 Cut and Fill Map .....................................................................................................3-26 3-17 Oak Canyon Drive Improvements ..........................................................................3-30 3-18 SR-241/Weir Canyon Road Interchange................................................................3-34 3-19 Mountain Park Drive Bridge Overcrossing .............................................................3-34 3-20 Project Impact Analysis Map..................................................................................3-38
4.1-1 Aerial Perspective of the Project Area and Surrounding Land Uses.....................4.1-2
4.1-2 General Plan Land Use Designations ...................................................................4.1-4
4.1-3 Relationship of Development Area 5 to SR-91 Improvements............................4.1-10
4.2-1 View Index.............................................................................................................4.2-2
4.2-2 Existing Photographs – Views N-1 and N-4 ..........................................................4.2-2
4.2-3 Existing Photographs – Views N-6 and N-8 ..........................................................4.2-4
4.2-4 Existing Photographs – Views W-3 and W-6.........................................................4.2-4
4.2-5 Existing Photographs – Views A-2 and A-3...........................................................4.2-6
4.2-6 Existing Photograph – View A-4............................................................................4.2-6
4.2-7 Existing Photographs – Views E-1 and E-2...........................................................4.2-6
4.2-8 Visual Simulation – View N-2 ..............................................................................4.2-12
4.2-9 Visual Simulation – View N-3 ..............................................................................4.2-12
4.2-10 Visual Simulation – View N-4 ..............................................................................4.2-12
4.2-11 Visual Simulation – View N-5 ..............................................................................4.2-12
4.2-12 Visual Simulation – View N-6 ..............................................................................4.2-12
4.2-13 Visual Simulation – View N-7 ..............................................................................4.2-12
4.2-14 Visual Simulation – View N-8 ..............................................................................4.2-12
4.2-15 Visual Simulation – View N-9 ..............................................................................4.2-12
4.2-16 Visual Simulation – View N-10 ............................................................................4.2-14
4.2-17 Visual Simulation – View W-1 .............................................................................4.2-14
4.2-18 Visual Simulation – View W-2 .............................................................................4.2-14
4.2-19 Visual Simulation – View W-3 .............................................................................4.2-14
4.2-20 Visual Simulation – View W-4 .............................................................................4.2-14
4.2-21 Visual Simulation – View W-5 .............................................................................4.2-14
4.2-22 Visual Simulation – View W-6 .............................................................................4.2-14
4.2-23 Visual Simulation – View W-7 .............................................................................4.2-14
4.2-24 Visual Simulation – View W-8 .............................................................................4.2-14
4.2-25 Visual Simulation – View A-1 ..............................................................................4.2-14
4.2-26 Visual Simulation – View A-2 ..............................................................................4.2-14 Mountain Park Specific Plan Amendment
Draft EIR No. 331
LIST OF EXHIBITS
(Continued)
Exhibit Follows Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc xi List of Exhibits
4.2-27 Visual Simulation – View A-4 ..............................................................................4.2-16
4.2-28 Visual Simulation – View A-5 ..............................................................................4.2-16
4.2-29 Visual Simulation – View E-2 ..............................................................................4.2-16
4.2-30a-e Cross-Sections....................................................................................................4.2-18
4.3-1 Regional Geologic Map.........................................................................................4.3-2
4.3-2 Geological Constraints – Development Area 1 .....................................................4.3-2
4.3-3 Geological Constraints – Development Area 2 .....................................................4.3-4
4.3-4 Geological Constraints – Development Areas 3 and 7..........................................4.3-4
4.3-5 Geological Constraints – Development Area 4 .....................................................4.3-4
4.3-6 Geological Constraints – Development Area 5 .....................................................4.3-4
4.4-1 Existing Watersheds and Primary Drainage Facilities...........................................4.4-2
4.4-2 SR-241 and SR-91 Interchange Drainage Facilities .............................................4.4-4
4.4-3 Existing Drainage Boundaries...............................................................................4.4-6
4.4-4 Existing Hydrology Map.........................................................................................4.4-6
4.4-5 Post-Development Drainage Boundaries............................................................4.4-14
4.4-6 West Watershed Drainage Detail........................................................................4.4-14
4.4-7 SR-241 and SR-91 Interchange Drainage Detail ................................................4.4-14
4.4-8 East Watershed Drainage Detail.........................................................................4.4-14
4.4-9 Post-Development Hydrology Map......................................................................4.4-18
4.4-10 Lower Gypsum Canyon Drainage Impact Analysis .............................................4.4-22
4.4-11 Existing Gypsum Canyon Creek Inundation Area...............................................4.4-32
4.4-12 Proposed Gypsum Canyon Creek Inundation Area ............................................4.4-32
4.4-13 Existing and Proposed Gypsum Canyon Creek Inundation ................................4.4-32
4.5-1 Project Boundary, Impact, and Drainage Areas for Water Quality Assessment.........................................................................................................4.5-12
4.5-2 Conceptual Illustration of an Extended Detention Basin .....................................4.5-18
4.5-3 Conceptual Illustration of a Filter Strip ................................................................4.5-18
4.6-1 Relationship to NCCP/HCP...................................................................................4.6-2
4.6-2 Plant Communities ................................................................................................4.6-4
4.6-3 Impacts to ACOE Jurisdictional Areas ................................................................4.6-34
4.6-4 Impacts to CDFG Jurisdictional Areas ................................................................4.6-34
4.6-5 Riparian Habitat Condition Assessment..............................................................4.6-34
4.6-6 Impacts to Coastal California Gnatcatcher..........................................................4.6-44
4.6-7 Impacts to Southwestern Willow Flycatcher........................................................4.6-44
4.6-8 Impacts to Sensitive Plant Species .....................................................................4.6-48
4.6-9 Impacts to Plant Communities.............................................................................4.6-52
4.7-1 Project Site and Traffic Analysis Study Area.........................................................4.7-2
4.7-2 Existing Circulation System...................................................................................4.7-2
4.7-3 Existing ADT Volumes (000s) ...............................................................................4.7-4
4.7-4 Intersection Location Map .....................................................................................4.7-4
4.7-5 Project-Related Roadway Improvements............................................................4.7-14
4.7-6 Project Trip Distribution Patterns.........................................................................4.7-16
4.7-7 Existing-Plus-Project ADT Volumes (000s).........................................................4.7-18
4.7-8 Year 2010 With-Project ADT Volumes (000s) – Committed Circulation System ................................................................................................................4.7-18
4.7-9 Year 2025 With-Project ADT Volumes (000s) – Committed Circulation System ................................................................................................................4.7-24
4.7-10 Year 2025 With-Project ADT Volumes (000s) – MPAH Buildout ........................4.7-24 Mountain Park Specific Plan Amendment
Draft EIR No. 331
LIST OF EXHIBITS
(Continued)
Exhibit Follows Page
R:\Projects\TIC\J020\Draft EIR\TOC-033005.doc xii List of Exhibits
4.7-11 Year 2025 With-Project ADT Volumes (000s) – MPAH Buildout with East Orange GPA and MPAH Amendments.......................................................4.7-26
4.8-1 CO Modeling Intersection Locations ...................................................................4.8-10
4.8-2 CO Modeling Receptor Locations .......................................................................4.8-16
4.9-1 Typical A-Weighted Noise Levels..........................................................................4.9-2
4.9-2 Typical Outdoor Noise Levels ...............................................................................4.9-2
4.9-3 Noise Measurement Locations..............................................................................4.9-4
4.9-4 City of Anaheim Noise Standards .........................................................................4.9-8
4.9-5 Construction Equipment Noise Levels ................................................................4.9-10
4.9-6 Future Traffic Noise CNEL Contours...................................................................4.9-20
4.9-7 Preliminary Noise Barriers...................................................................................4.9-20
4.9-8 Mechanical Ventilation Areas..............................................................................4.9-22
4.9-9 Interior Noise Analysis Areas ..............................................................................4.9-22
4.10-1 Areas of Potential Environmental Concern/Hazards...........................................4.10-2
4.10-2 Proposed Revision to Fire Protection Areas .....................................................4.10-12
4.11-1 Orange County Regional Statistical Areas........................................................4.11-10 5-1 Commercial Use Alternative.....................................................................................5-6 5-2 Specific Plan 90-4 Development Plan....................................................................5-16 5-3 Modified Land Use Plan Alternative .......................................................................5-24 5-4 Reduced Development Area Alternative ................................................................5-26 5-5 Reduced Development Area/Reduced Density Alternative....................................5-33 5-6 Highly Concentrated Development Alternative.......................................................5-37 5-7 SR-241/Weir Canyon Road Half-Diamond Interchange Alternative.......................5-44 5-8 Sanitary Sewer Connection E-1 – Gravity Main to SARI Pipeline via Gypsum Canyon Road...........................................................................................5-46 5-9 Sanitary Sewer Connection E-3 – Gravity Main to SAVI Ranch via Santa Ana Canyon Road and River Maintenance Road ........................................5-46 5-10 Sanitary Sewer Connection E-4 – Gravity Main to SARI Pipeline South Relocation....................................................................................................5-48 5-11 Sanitary Sewer Connection E-5 – Force Main to SARI Pipeline via Gypsum Canyon Road Bridge................................................................................5-48 5-12 Sanitary Sewer Connection W-2 – Temporary Force Main to the Summit Residential Community via Weir Canyon Road ........................................5-52 5-13 Sanitary Sewer Connection W-4 – Gravity Main to the Summit of Anaheim Hills via Fallbrook Way............................................................................5-52 Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-1 Executive Summary SECTION 1
EXECUTIVE SUMMARY
1.1 INTRODUCTION
This Draft Environmental Impact Report (EIR) addresses the environmental effects associated with the implementation of the proposed Mountain Park Specific Plan Amendment project. The California Environmental Quality Act (CEQA) requires that local government agencies, prior to taking action on projects over which they have discretionary approval authority, consider the environmental consequences of such projects. An EIR is a public document designed to provide the public and local and State governmental agency decision-makers with an analysis of potential environmental consequences to support informed decision-making.
This Draft EIR has been prepared as a Program EIR, pursuant to the requirements of CEQA, the State CEQA Guidelines, and the City of Anaheim’s CEQA procedures (refer to discussion provided in Section 2, Introduction). The City of Anaheim is the Lead Agency, and City staff has reviewed and revised as necessary all submitted drafts, technical studies, and reports to reflect its own independent judgment, including reliance on applicable City technical personnel from other departments and review of all technical subconsultant reports.
The current Mountain Park Specific Plan (SP 90-4) was adopted by the City of Anaheim in 1991. In May 2004, the City of Anaheim approved a General Plan Update (GPA No. 2004- 00419) which, among other actions, amended the land uses in the Mountain Park Specific Plan area to decrease the intensity of development from 7,966 residential units to 2,500 units; eliminated proposed commercial and mineral extraction uses, four school sites, a City maintenance yard; and reduced the number of park sites. Along with the General Plan Update, the City of Anaheim also approved an update to Title 18 (Zoning) of the Anaheim Municipal Code, and termination of Development Agreement No. 91-01 between the City of Anaheim and The Irvine Company relating to the Mountain Park Specific Plan. The actions related to the Mountain Park Specific Plan area were coordinated with the project applicant. The new zoning and general plan designations are described in more detail in Section 3, Project Description.
The primary actions associated with the project include a proposed amendment to the Mountain Park Specific Plan (SP 90-4) to implement the adopted General Plan, and proposed amendment to the City of Anaheim Zoning Code to incorporate the revised Zoning and Development Standards for the project site. The property owner/developer is also requesting that the General Plan, Safety Element, Exhibit S-5 (Fire Protection Areas) be amended to remove the Very High Fire Hazard Severity Zone designation from proposed development areas (including the outermost portions of the fuel modification zones and tract boundaries). This action is supported by the Fire Master Plan included as part of the project (Appendix R). These primary actions and other related actions are further described in Section 3.8, Intended Use of the EIR. In addition to analysis of these actions, the Draft EIR discusses alternatives to the proposed project and includes a mitigation program that will offset, minimize, or otherwise avoid significant environmental impacts. Following is a summary description of the project, project alternatives, and potential significant impacts identified through the analysis presented in this Draft EIR.
1.2 PROJECT SUMMARY
The proposed Mountain Park Specific Plan Amendment project is located in Gypsum Canyon, south of the Riverside (SR-91) Freeway, in the City of Anaheim and its sphere–of-influence, Orange County, California. The Eastern Transportation Corridor (SR-241) bisects the project Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-2 Executive Summary site into eastern and western segments. The majority of the project site is in the jurisdiction of the City of Anaheim; however, the southern- and eastern-most portions are in an unincorporated area of the County of Orange in the City of Anaheim’s sphere-of-influence. Access to the proposed project would be provided from SR-91, Santa Ana Canyon Road and Gypsum Canyon Road to the north, and SR-241 and Weir Canyon Road to the west. Access from SR-241 would be provided from a proposed interchange at Weir Canyon Road. The interchange would be implemented as part of the project (as described in Section 3.3.5) consistent with an interchange reimbursement agreement executed between the project applicant and the Foothill/Eastern Transportation Corridor Agencies (F/ETCA). This EIR addresses construction of, and modifications to the proposed design for the interchange that was addressed in the Final EIS prepared for SR-241.
The Mountain Park Specific Plan No. 90-4 area, hereinafter referred to as the “project site,” encompasses approximately 3,001 acres and is proposed to include Development Areas and preserved open space. The project site acreage does not include the approximate 172-acre SR-241 right-of-way. The Mountain Park “study area” is approximately 3,023.8 acres and includes the project site, as well as approximately 22.8 acres for off-site project features (discussed in Section 3.3.4).
The project site is currently undeveloped with the exception of the approximate 300-acre sand and gravel quarry site in the northeastern portion of the project site. Robertson’s Ready Mix operated a sand and gravel mining and concrete production facility operated at the quarry under an extraction license agreement with The Irvine Company that terminated in December 2004.
All American Asphalt operated an asphalt batch plant at the quarry site as a sublicensee to Robertson’s. A previously approved Reclamation Plan for the quarry operation requires that the site be vacated no more than six months (June 2005) after termination of the extraction license agreement; however, the extraction license agreement requires that the site be vacated by April 2005, following implementation of a Reclamation Plan previously approved by the County of Orange.
Implementation of the Mountain Park Specific Plan Amendment would allow for the development of a maximum of 2,500 residential units in Development Areas 1, 2, 4, and 5 east of SR-241 and Development Areas 3 and 7 west of SR-241. In addition to residential uses, the proposed project includes the following: a City fire station, trail staging area, interpretive center, and/or potential store concession northwest of the Santa Ana Canyon Road/Gypsum Canyon Road intersection in Development Area 6; a school site and adjacent public community park in Development Area 3; public and private recreation facilities; public and private trails; and roadways and utilities necessary to serve the proposed development. Manned gates are proposed as part of the project and would be located along Gypsum Canyon Road and the proposed Mountain Park Drive. Access to Development Area 7, and the school and park site, west of SR-241, would be located before the gated entry, allowing public access to these uses.
The proposed project also includes construction of the SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing (discussed in Section 3.3.5 of this EIR). The interchange is proposed to have a “trumpet” configuration modified to provide only a southbound SR-241 direct entrance ramp and a northbound SR-241 flyover exit ramp. The bridge overcrossing accommodates a proposed private roadway (Mountain Park Drive) extending between Development Areas east and west of SR-241.
The proposed project would require the implementation of off-site project features (located on property not owned by the project applicant) as described in Sections 3.3.4, Off-site Project Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-3 Executive Summary Features, and 3.3.5, Caltrans-related Project Features.1 Off-site improvements generally include: drainage improvements within Featherly Regional Park; realignment and improvements to Gypsum Canyon Road between Santa Ana Canyon Road and Featherly Regional Park; improvements to Santa Ana Canyon Road immediately west of Gypsum Canyon Road (a small portion of this improvement also occur within Caltrans right-of-way for SR-241); SR-91/Gypsum Canyon Road box culvert improvement (approximately 300 feet of the box culvert improvement also occurs within Caltrans right-of-way); roadway improvements at the eastern terminus of Weir Canyon Road at the western project boundary; roadway improvements to the current terminus of Oak Canyon Drive east of Running Springs Drive; connection to the Santa Ana River Interceptor (SARI) sanitary sewer line; and connections and upgrades to other off-site infrastructure facilities. There are numerous options for the off-site sanitary sewer facility connections for Development Areas east and west of SR-241. City staff’s preferred options for these connections are described in Section 3, Project Description, and analyzed in Section 4.
The remaining options are described and analyzed in Section 5, Alternatives.
In addition to the SR-241/Weir Canyon Road interchange, Mountain Park Drive bridge overcrossing and off-site improvements identified above with minor encroachments in Caltrans right-of-way, the following project features are also located within Caltrans right-of-way:
SR-91/Gypsum Canyon Road interchange improvements; slope modifications north of Development Area 5 along SR-91; and slope and drainage facility modifications along SR-241 north of the proposed SR-241/Weir Canyon Road interchange.
Approximately 2,163 acres of the Mountain Park project site would be preserved as open space outside of the Development Areas, including Natural Communities Conservation Program (NCCP) open space areas, open space designated by conservation easements, and other open space. Open space areas are primarily located in the southern portion of the project site.
1.3 SUMMARY OF PROJECT IMPACTS
Table 1-1 at the end of this EIR section provides a summary of the potential environmental effects of the project, the recommended mitigation measures, and identifies any unavoidable adverse impacts (as described in Section 4 of this EIR). The reader is referred to the full text of this EIR for a description of the environmental effects of the proposed project and recommended mitigation measures.
As shown in Table 1-1, the proposed Mountain Park Specific Plan Amendment project would result in potentially significant impacts for the following topical issues: geology and soils, biological resources, traffic and circulation, air quality, noise, and cultural resources. The project would also result in cumulative air quality impacts. Implementation of the mitigation programs provided in Section 4 would reduce these impacts; however, the following impacts would remain significant after implementation of the mitigation program and would require adoption of a Statement of Overriding Considerations:
Impact 4.2-1 Development Areas 1, 2, 3, 4, and 7 would require alterations to existing scenic resources including landform/topography and rock outcroppings. Impacts to scenic resources within Development Areas 3, 4, and 7 would be visible from SR-91 and SR-241 and would be considered a significant and unavoidable impact.
1 Caltrans-related Project Features include project features that occur primarily within Caltrans right-ofway, and will require an encroachment permit from Caltrans.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-4 Executive Summary Impact 4.8-1 Project-related grading activities would result in a significant short-term construction-related air quality impact for the following air pollutants: CO, ROG, NOX, and PM10.
Impact 4.8-2 Project-related regional air emissions would exceed established thresholds for the following air pollutants and is considered a significant regional air quality impact: CO, ROG, and NOX.
Impact 4.8-3 The proposed project contributes to a net increase in CO, NOX, PM10, and ROG.
Therefore, the proposed project would have a significant cumulative air quality impact.
Impact 4.8-4 Construction of the proposed project would expose sensitive receptors to pollutant concentrations that exceed SCAQMD thresholds.
The following traffic impacts associated with Weir Canyon Road and La Palma Avenue are also considered significant and unavoidable since the improvements required to mitigate these impacts are dependent on approval and financing from the City of Yorba Linda. Although the project’s impact is mitigated by payment of fair-share costs for improvements by the property owner/developer, the City of Anaheim cannot require another jurisdiction to implement these improvements.
Impact 4.7-1 The Weir Canyon Road/La Palma Avenue intersection in the City of Yorba Linda would operate at LOS E during the AM peak hour under the Year 2025 Committed Circulation System “no project” and “with project” scenarios as well as the Year 2025 MPAH Buildout “with project” scenario. The project’s contribution to the ICU value at this intersection under these scenarios is estimated to be .01 which would be a significant impact.
Impact 4.7-2 Based on the project’s significant impact at the Weir Canyon Road/La Palma Avenue intersection, the project is also assumed to significantly impact Weir Canyon Road south of the intersection (between SR-91 and La Palma Avenue) within the City of Yorba Linda under the same scenarios.
1.4 PROJECT ALTERNATIVES
In accordance with Section 15126.6 of the CEQA Guidelines, Section 5 of this EIR includes an analysis of a reasonable range of alternatives that could feasibly attain the basic objectives of the project, and evaluates the comparative merits of the alternatives. The following presents a summary of each alternative analyzed in the EIR. Please refer to Section 5 of this EIR for a complete discussion of the alternatives and the relative impacts with each alternative. As required by CEQA, Section 5 also identifies the environmentally superior alternative.
1.4.1 LAND USE PLAN ALTERNATIVES
No Project/No Action Alternative
Under this alternative, the proposed Mountain Park Specific Plan project would not occur, and the following assumptions are made for purposes of analysis. The existing quarry site would be reclaimed under the previously approved Reclamation Plan (refer to Section 3.0, Project Description for additional description). The extraction license agreement for the quarry terminated in December 2004 and facilities and equipment should be removed by June 2005.
The quarry site would remain in its reclaimed condition under this alternative. The dedicated Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-5 Executive Summary open space areas on-site associated with the NCCP/HCP Reserve and The Nature Conservancy Anaheim Conservation Easement (TNC ACE) would continue to be protected.
The remainder of the project site would remain as private open space, no residential development, landscaping, infrastructure, public or private recreational facilities, trails, etc. would be implemented. Access into the site would remain restricted.
No Project/Development Pursuant to the Current Mountain Park Specific Plan Alternative This alternative assumes development of the current Mountain Park Specific Plan (SP 90-4) which was approved in 1991. SP 90-4 allowed for the development of 7,966 residential units, commercial uses, interim sand and gravel mineral extraction, schools, parks, and open space on 3,179 acres. Site access would be provided by the proposed Weir Canyon Road and Oak Canyon Drive. Access would also be provided from Santa Ana Canyon Road/Gypsum Canyon Road. As described in Section 3, Project Description, there have been a number of actions since approval of SP 90-4 that would make implementation of this alternative difficult, including:
dedication of the TNC ACE, approval of the City of Anaheim General Plan and Zoning Code Update in May 2004, and termination of the Development Agreement associated with SP 90-4.
Modified Land Use Plan Alternative
This alternative assumes the development of a modified land use plan. It would involve the following uses: 2,500 residential units within seven development areas; a school site and public community park in Development Area 5; a fire station, trail staging area, store concession/ interpretive center in Development Area 6; trails; and, public and private recreational facilities.
Under this alternative there would be no roadways extended between development areas west and east of SR-241. The community would not be gated. This alternative would have a single access point at Gypsum Canyon Road and Santa Ana Canyon Road to serve the development east of SR-241. Proposed development west of SR-241 would obtain access from existing Weir Canyon Road. The SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing would not be constructed under this alternative. To accommodate emergency egress, the existing unimproved dirt road that extends along Gypsum Canyon Creek would require improvements. Approximately 1,800 feet of the existing Southern Trails Pipeline that traverses the project site would be replaced with approximately 1,935 feet of new pipeline. The dedicated open space areas on-site associated with the NCCP/HCP Reserve and TNC Anaheim Conservation Easement would continue to be protected, as with the proposed project.
Reduced Development Area
This alternative assumes the development of 2,500 residential units in Development Areas east of the SR-241 (1, 2, 4, and 5). Under this alternative, there would be no development west of SR-241. The proposed school site and community park would be located in Development Area 5. A fire station, trail staging area, and store concession/interpretive center would be provided in Development Area 6. Additionally, this alternative would include trails, and public and private recreational facilities. Approximately 2,291 acres of open space would be preserved. The SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing would not be constructed and the community would not be gated. As with the Land Use Plan Alternative, this alternative would have a single access point at Gypsum Canyon Road and Santa Ana Canyon Road and to accommodate emergency egress, the existing unimproved dirt road that extends along Gypsum Canyon Creek would require improvements.
The dedicated open space areas on-site associated with the NCCP/HCP Reserve and TNC ACE would continue to be protected, as with the proposed project.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-6 Executive Summary Reduced Development Area/Reduced Density Alternative
This alternative assumes the development of 1,146 residential units in Development Areas east of the SR-241 (1, 2, 4, and 5). Under this alternative, there would be no development west of SR-241. With the exception of the decreased number of residential units, this alternative would have the same proposed uses as the Reduced Development Area Alternative described above.
Highly Concentrated Development Area Alternative
The purpose of the Highly Concentrated Development Area Alternative is to reduce or eliminate unavoidable landform alteration impacts that are associated with implementation of the proposed project. To accomplish this, development under this alternative scenario would be limited to Development Areas 5 and 6 that have been disturbed by previous activities and do not have significant natural landform/topographic features remaining. This alternative assumes the development of 2,500 residential units, a school site, and community park on Development Area 5 (quarry site). As with the proposed project, a fire station, trail staging area, and store concession/interpretive center would be provided in Development Area 6. Approximately 2,830 acres of open space would be preserved and the dedicated open space areas on-site associated with the NCCP/HCP Reserve and TNC ACE would continue to be protected. The SR-241/Weir Canyon Road Interchange and SR-241 bridge overcrossing would not be constructed and the community would not be gated. As with the Modified Land Use Plan Alternative, this alternative would have a single access point at Gypsum Canyon Road and Santa Ana Canyon Road and to accommodate emergency egress, the existing unimproved dirt road that extends along Gypsum Canyon Creek would require improvements. Additionally, this alternative would include implementation of a regional riding and hiking trail along Gypsum Canyon Creek adjacent to Development Area 5.
1.4.2 INFRASTRUCTURE DESIGN ALTERNATIVES
SR-241/Weir Canyon Road Interchange Alternative
The proposed project involves implementation of the SR-241/Weir Canyon Road Interchange with a Type L-11 ”trumpet” configuration. This design alternative assumes a half-diamond interchange with a two-lane overcrossing. A southbound SR-241 direct entrance ramp and northbound SR-241 off-ramp would be provided. As with the interchange proposed with the project, this interchange would be constructed by the property owner/developer as part of the project; however, the interchange would be owned and maintained by Caltrans.
Off-site Sanitary Sewer Connection Alternatives
As noted previously, there are a number of available options for connecting the on-site sanitary sewer system to the SARI line (located north of the project site within the Santa Ana River).
These options are discussed in detail in the Project Sewer Study prepared for the project (discussed in Section 4.12, Public Services and Utilities). The numbering of Alternatives presented in this EIR is consistent with the Project Sewer Study; however, the east basin (east of SR-241) options are noted with “E” (e.g., Alternative E-1) and west basin options are noted with “W”. As part of the proposed project, the City of Anaheim staff have identified preferred connection options for the east and west basins. The preferred sanitary sewer line connection options included as part of the project are described in Section 3, Project Description, and include: Alternative E-2, Gravity Main to SARI Pipeline in SAVI Ranch via Santa Ana Canyon Road; and Alternative W-3, Gravity Main to The Summit of Anaheim Hills via Weir Canyon Road. It should also be noted that Alternative W-1, Gravity Main to East Basin Facilities via Bridge over SR-241, involves directing flows from the west basin to the east basin using Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-7 Executive Summary sanitary sewer lines in Mountain Park Drive and the bridge overcrossing. Under this option there would not be a long-term connection to existing facilities west of the project site. Following is a summary of the alternative sanitary sewer connection options addressed in Section 5, Alternatives.
East Basin Off-site Sanitary Sewer Connection Alternatives Sanitary sewer wastewater generated by proposed development in the eastern portion of the project site would drain by gravity flow northerly to the intersection of Gypsum Canyon Road and Santa Ana Canyon Road. The proposed project includes one option to convey sanitary sewer wastewater out of the development to a SARI connection point (Alternative E-2 Gravity Main to SARI Pipeline in SAVI Ranch via Santa Ana Canyon Road). In addition to this option addressed as part of the project (Alternative E-2 in the Mountain Park Project Sewer Study), there are four additional options for the SARI line connection that are described in Section 5, Alternatives.
x Alternative E-1 – Gravity Main to SARI Pipeline via Gypsum Canyon Road x Alternative E-3 – Gravity Main to SAVI Ranch via Santa Ana Canyon Road and River Maintenance Road
x Alternative E-4 – Gravity Main to SARI Pipeline South Relocation x Alternative E-5 – Force Main to SARI Pipeline via Gypsum Canyon Road Bridge West Basin Off-site Sanitary Sewer Connection Alternatives Sanitary sewer wastewater generated by proposed development in the western portion of the project site would ultimately drain by gravity north and east in Mountain Park Drive, across SR-241 (within bridge), and would join with east basin sanitary sewer facilities (Alternative 1 in the Mountain Park Project Sewer Study). However, based on current phasing sequences planned for the project, the west basin Development Areas would be developed prior to the east basin Development Areas, and east basin sanitary sewer infrastructure would not be in place and available to receive west basin sewer flows. A gravity main option to the Summit of Anaheim Hills via Weir Canyon Road is addressed as part of the project (Alternative W-3 in the Mountain Park Project Sewer Study). Alternative off-site sewer connection options for the west basin are evaluated in Section 5 and include:
x Alternative W-2 – Temporary Force Main to The Summit Residential Community via Weir Canyon Road
x Alternative W-4 – Gravity Main to the Summit of Anaheim Hills via Fallbrook Way
1.4.3 ALTERNATIVES ELIMINATED FROM DETAILED CONSIDERATION The following alternatives were evaluated but were eliminated from detailed consideration because they were found to be infeasible or failed to eliminate or reduce significant impacts associated with the proposed project. These alternatives are discussed further in Section 5.2. x Alternative Site
x Residential Development with Commercial Use
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-8 Executive Summary x Proposed Project with Alternative Circulation Concepts - Ungated Community
- Extension of Oak Canyon Drive into the Project Site/No Mountain Park Road - Extension of Weir Canyon Road East to Development Area 1
1.5 AREAS OF CONTROVERSY AND ISSUES TO BE RESOLVED
Section 15123 of the State CEQA Guidelines indicates that an EIR summary should identify areas of controversy known to the lead agency including issues raised by agencies and the public. The following issues pertaining to the proposed project were raised during the scoping process.
x The need for construction of school(s) to serve the project. Because the schools in surrounding areas are currently operating at or beyond capacity, a number of individuals indicated that a school within the Mountain Park site should be provided prior to occupancy of any residential units. The proposed project involves the provision of a potential school site; however, the Orange Unified School District (OUSD) would be responsible for the purchase of the school site and ultimate construction of a school.
The potential project impacts to schools are discussed in Section 4.12, Public Services and Utilities. Additionally, this EIR addresses the potential impacts of a school within the project site (including physical impacts associated with construction, traffic, etc.). Under State law, the property owner/developer would be required to pay required developer fees or choose to enter into a facilities and funding mitigation agreement with the OUSD.
The OUSD and the property owner (Irvine Community Development Company) have entered into a School Impact Mitigation Agreement for the proposed Mountain Park project. The agreement was approved by the OUSD in December 2004, and outlines the School Facilities Plan for the Mountain Park project. The mitigation agreement is provided in Appendix K to this EIR. Further discussion is provided in Section 4.12, Public Services and Utilities.
It should be noted that the property owner/developer and the City of Anaheim do not have jurisdiction over the determination of when/if a school will be developed, the type of school, or the size of the school. Those decisions are under the purview of the OUSD. x Traffic and circulation-related issues associated with the proposed project. The proposed Mountain Park Specific Plan includes a circulation system that is described in Section 3.3, Project Description. The main access points to the project site are Weir Canyon Road and Gypsum Canyon Road/Santa Ana Canyon Road, and the community is proposed to be gated. Following are some of the traffic/circulation-related comments were made during the scoping process: the project should not be gated allowing public access through the site; Oak Canyon Road should be extended into the project site instead of constructing the proposed Mountain Park Road; Weir Canyon Road should be extended east from SR-241 to Development Area 1; the project would worsen traffic conditions in the adjacent communities and on SR-91. In response to these comments, alternative circulation design options are addressed in Section 5, Alternatives. Section
4.7, Traffic and Circulation, addresses the potential traffic impacts on the local and regional circulation network.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summ-032405.doc 1-9 Executive Summary x The project should include a commercial component to support its residents. There is a concern that the existing shopping centers in neighborhoods proximate to the project site do not have the capacity for additional patrons and the traffic generated by project residents using these commercial areas would worsen traffic conditions internal to the shopping centers as well as on local streets. Traffic conditions on the local circulation network are addressed in Section 4.7, Traffic and Circulation and a project alternative that includes a commercial component in the Mountain Park area is discussed in Section 5, Alternatives. It should be noted that the potential for the proposed project to capture retail sales was evaluated (Gregory Stoffel & Associates, 2004) and is on file at the City of Anaheim Planning Department. Said study concludes that the proposed Mountain Park community creates insufficient demand by itself to support an additional local-serving retail center and the proposed community is too remote to attract sales from existing residents of Anaheim and Yorba Linda. Said study further concludes that existing retail centers in Anaheim which are accessible to future residents of the proposed project are currently under-performing in relation to similar centers located throughout the region, and have sufficient physical and sales capacity to handle increased sales resulting from the project. For these reasons, an alternative that includes a commercial shopping center has been eliminated from further consideration.
However, it should be noted that the proposed Mountain Park Specific Plan allows for a convenience market or grocery store having a maximum interior floor area of 3,000 square feet.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-10 Executive Summary TABLE 1-1
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
Table 1-1 summarizes the conclusions of the environmental impact analysis conducted for the proposed Mountain Park Specific Plan project, the mitigation program, and the level of significance of potential project impacts after application of the mitigation program.The first column of the table summarizes the potential environmental impacts of the project based on the analysis provided in Section 4 of this EIR. It should be noted that when an impact is identified parenthetically (e.g., Impact 4.2-1), this indicates that the impact was determined to be significant prior to mitigation. The impact numbering corresponds to the analysis presented in Section 4 for each topical issue. A summary of significant impacts was previously provided in Section 1.3, Project. Additionally, consistent with analysis presented in Section 4, the summary of potential impacts addresses on-site project features, off-site project features, and project features within Caltrans right-of-way. The mitigation program required for the project is outlined in the second column and includes PDFs, SCs, and MMs which are described below. For each topic, the PDFs and SCs are identified first, as the impact conclusions presented assume their implementation. When an impact is determined to be less than significant because of specific project design features (PDF) and/or existing requirements and standard conditions (SC), the relevant PDF and/or SC is identified. x Project Design Features (PDF) – Project Design Features are specific design elements proposed by the project applicant that have been incorporated into the project to prevent the occurrence of, or reduce the significance of, potential environmental effects. Because PDFs have been incorporated into the project, they do not constitute mitigation measures as defined by CEQA. However, PDFs are identified in the mitigation section for each topical issue and will be included in the mitigation monitoring program to be developed for, and implemented as a part of, the proposed project. x Existing Requirements and Standard Conditions (SC) – Existing requirements and standard conditions are based on local, state, or federal regulations or laws that are frequently required independently of CEQA review and also serve to offset or prevent specific impacts. Typical standard conditions and requirements include compliance with the provisions of the Uniform Building Code, South Coast Air Quality Management District Rules, local agency fees, etc. Additional conditions may be imposed on the project by the City during the approval process, as appropriate. x Mitigation Measures (MM) – Where a potentially significant environmental effect has been identified and is not reduced to a level considered less than significant through the application of PDFs and standard conditions and requirements, projectspecific mitigation measures have been recommended.
The third column identifies the level of significance of impacts after application of the mitigation program.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-11 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
SECTION 4.1 LAND USE AND PLANNING On-site Project Feature Impacts The proposed project would involve the development of residential, public facilities, recreational and infrastructure uses on the project site which is currently undeveloped with the exception of the existing Robertson’s Ready Mix surface mining site and All American Asphalt. The extraction license agreement for Robertson’s and sublease for All American Asphalt terminated in December 2004 and these facilities will be vacated by June 2005. No impacts to on-site land uses would result from implementation of the project.
No mitigation is required No impact
The proposed project would not have direct impacts on existing uses to the north (SR-91, Featherly Regional Park and residential uses in the City of Yorba Linda), west (Sycamore Canyon and The Summit of Anaheim Hills residential communities in the City of Anaheim), and east (Chino Hills State Park) of the project site.
No mitigation is required No impact
The area south of the proposed Development Areas includes open space within The Nature Conservancy Anaheim Conservation Easement (TNC ACE), and the Natural Communities Conservation Program (NCCP) Reserve, as well as proposed other open space. These areas would be preserved with the proposed project (72 percent of the project site would remain open space) and no impact would result.
No mitigation is required No impact
The project would be consistent with relevant land use-related goals and policies outlined in the City of Anaheim General Plan, County of Orange General Plan, and Southern California Association of Governments (SCAG) Regional Comprehensive Plan and Guide (RCPG); no significant impacts related to planning programs would result from the project.
No mitigation is required No impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-12 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Off-site Project Feature ImpactsThe proposed Santa Ana River Interceptor (SARI) line connection for the east basin sanitary sewer facilities would traverse privately-owned property including a commercial parking lot within SAVI Ranch in the City of Yorba Linda. This would also require construction within existing street right-ofway. These temporary land use impacts would not be significant. Other off-site project features (drainage and roadway improvements described in Section 3.3.4) would not result in significant off-site land use impacts. The project applicant would obtain appropriate permits and authorization from affected property owners and jurisdictions (refer to discussion in Section 3.8, Intended Uses of the EIR).
No mitigation is required No impact
Caltrans-related Project Feature ImpactsThe SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing are transportation improvements associated with the planned existing SR-241 and would not result in significant land use impacts. Remedial grading for Development Area 5, roadway improvements at SR-91/Gypsum Canyon Road and along Santa Ana Canyon Road, and drainage facility modifications along SR-241 would encroach into Caltrans right-of-way. An encroachment permit would be obtained from Caltrans and no significant land use impacts would result.
No mitigation is required No impact
SECTION 4.2 AESTHETICS On-site Project Feature Impacts Project Design FeaturesThe proposed project would alter the existing visual character of the site through the introduction of development in currently undeveloped areas. The visual changes would not substantially degrade the visual character or quality of the site. Conversely, the proposed project would remove the existing PDF 2-1 The Mountain Park Specific Plan provides for replacement of oak, sycamore, willow and other native trees removed as a result of the project at a ratio of 20:1. In conjunction with the submittal of each tentative tract or parcel map, the property owner/developer shall submit a Detailed Landscape Plan to the Planning Department demonstrating that trees removed from the site will be replaced at a total ratio of 20:1. The 20:1 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-13 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
active mine on-site which is seen from various surrounding vantage points. ratio is achieved using a combination of the Scenic Corridor Overlay tree list (Anaheim Zoning Code Chapter 18.18, Table 18-B), and the Mountain Park Specific Plan Tree List.
Existing Regulations and Standard Conditions
SC 2-1 Prior to approval of grading plans, the property owner/developer shall provide grading plans to the Department of Public Works demonstrating that graded areas will be compatible with natural landform characteristics in conformance with the Anaheim Municipal Code, Title 17-Land Development and Resources, the City of Anaheim Grading Design Manual and Hillside Grading Procedures, the Mountain Park Specific Plan Grading Concept and Hillside Grading and Landscape Policies, and the most recent version of the Anaheim Building Code (ABC).
SC 2-2 Prior to approval of precise grading plans, the property owner/developer shall prepare a detailed slope landscape plan, which shall be approved by the Department of Public Works. The plan shall be certified by a licensed landscape architect, and be prepared in compliance with Section 17.06 of the City of Anaheim Municipal Code and the Mountain Park Specific Plan Grading Concept and Hillside Grading and Landscape Policies to blend landscape features with the existing environment. In addition, the landscape plan shall conform to the preliminary landscape plan approved in conjunction with the development area plans.
SC 2-3 Tree replacement shall be conducted consistent with Section 18.18.040.
Prior to approval of grading plans, the property owner/developer shall provide a Specimen Tree Removal Plan to the Planning Department demonstrating that the proposed project has been designed in accordance with the provisions of Chapter 18.18.040 and required tree replacement.
Development Areas 1, 2, 3, 4, and 7 would require alterations to existing scenic resources including landform/topography and rock outcroppings. Impacts to scenic resources within Development Areas 2, 4 and 7 would be visible from SR-91 and SR-241. (Impact 4.2-1) SC 2-1 Significant and unavoidable
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-14 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
The proposed project would introduce typical lighting for a residential community as well as sports field lighting for the proposed community park in Development Area 3.
Project Design Features
PDF 2-2 Prior to approval of the Park Master Plan for the sports park within Development Area 3, the property owner/developer shall submit lighting plans for review and approval by the Community Services Department that incorporate the following design specifications:
x Sportsfield luminaires shall have mounting hardware approved by the City, which cannot be inadvertently or intentionally adjusted to cause spillover impacts. Instead, luminaries shall be professionally and permanently installed to direct light only onto the sports fields/courts and away from residential areas and other development. x Luminaire lamps shall provide good color rendering and natural light qualities.
x Luminaires shall be restricted to no more than 500 lux (1 lumen per square meter) or 50 foot-candles per fixture.
x Luminaires shall be placed at the appropriate, engineered height to reduce potential for glare and incidental spillover into adjacent properties and open space. x Luminaire mountings, poles, and fixtures shall have matted finishes.
Existing Regulations and Standard Conditions
SC 2-4 Prior to approval of street improvement plans for a development area; the property owner/developer shall submit a detailed lighting plan for review and approval by the Public Utilities Department. The plan shall be certified by a professional engineer and be prepared to minimize light spillover effects.
Less than significant
The proposed project would be consistent with relevant aesthetic and landform-related goals and policies outlined in the City of Anaheim General Plan, County of Orange General Plan, and SCAG RCPG.
No mitigation is required No impact
The proposed project would result in the removal of existing trees within the primary impact area identified on Exhibit 3-20.
PDF 2-1 and SC 2-3 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-15 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Off-site Project Feature ImpactsThe proposed off-site project features (described in Section 3.3.4) include improvements to existing roadways and infrastructure. The proposed improvements would not alter the visual character or setting of the area in which they are located, would not damage scenic resources, and would not create a new source of substantial light and glare.
No mitigation is required No impact
Caltrans-related Project Feature Impacts
The SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing, proposed improvements at the SR-91/Gypsum Canyon Road interchange and along Santa Ana Canyon Road, and drainage facility modifications along SR-241, would not alter the visual character along SR-91 or SR-241. These facilities are visually consistent with other similar facilities in the area. The remedial slope grading required in the northern portion of Development Area 5 within Caltrans right-of-way would be visible from various vantage points to the north, including SR-91 which is an eligible state scenic highway. Slope modifications along SR-241 would be visible from vantage points along SR-241.
SC 2-1, SC 2-2, and Existing Regulations and Standard Conditions SC 2-5 Prior to the issuance of an Encroachment Permit by Caltrans, the property owner/developer shall submit grading plans to Caltrans demonstrating that graded areas are in conformance with Caltrans standard specifications.
SC 2-6 Prior to the issuance of an Encroachment Permit by Caltrans, the property owner/developer shall submit landscape plans for areas within Caltrans right-of-way to Caltrans for review and approval, demonstrating that the proposed plant palette is in conformance with Caltrans requirements, including Executive Order 13112, Invasive Species. Proof of this approval shall be submitted to the City of Anaheim Department of Public Works.
Less than significant
SECTION 4.3 GEOLOGY AND SOILS On-site Project Feature Impacts There are no known active or potentially active faults on or crossing the project site; therefore, the possibility of surface fault rupture is considered remote. However, the project site is located in a seismically active region, and people and structures could be exposed to seismic ground shaking. (Impact 4.3-1) Existing Regulations and Standard Conditions
SC 3-1 Prior to issuance of each building permit, the property owner/developer shall demonstrate that each structure has been designed in accordance with the most recent seismic standards in the ABC (Anaheim Building Code) and approved by the Chief Building Official. The ABC contains provisions that regulate the design and construction of excavations, foundations, retaining walls and other building elements to control the effects of seismic ground shaking and adverse soil conditions.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-16 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
SC 3-2 Prior to issuance of building permits, the property owner/developer shall submit building pad certifications to the Department of Public Works, as required in Code Section 17.06, documenting that grading has been completed in conformance with the Anaheim Municipal Code, Title 17-Land Development and Resources, the City of Anaheim Grading Design Manual and Grading Plan Procedures, and the Mountain Park Specific Plan Grading Concept and Hillside Grading and Landscape Policies.
SC 3-3 In compliance with the Anaheim Municipal Code, prior to approval of each mass grading plan, the property owner/developer shall submit a preliminary geotechnical report prepared by an engineering geologist and geotechnical engineer to the Department of Public Works for review and approval. This report shall be prepared to the satisfaction of the City Engineer and shall address soil and geology related constraints and hazards identified in EIR No. 331 such as slope stability, settlement, liquefaction, and related secondary seismic hazards. For grading within Caltrans right-of-way, a preliminary geotechnical report shall be submitted and approved by Caltrans. Specifically, the report shall:
x Include an assessment of potential soil related constraints such as stability of proposed cut, fill and natural slopes. Conduct further subsurface exploration to refine geologic structure for cut slope stability. If the report finds stabilization necessary, grading plans shall require corrective measures to address the need for stabilization; x Include an assessment of on-site landslides and appropriate corrective measures, such as further subsurface exploration of landslide areas beneath planned fills and development areas. Corrective measures would include complete removal, if feasible or stabilization or buttressing of the landslide. This would involve partial removal of the landslide and stabilizing potential future movement with earthen fill or reinforced materials; x Include subsurface exploration of alluvial and canyon drainage areas beneath planned fills or development areas;
x Evaluate excavation characteristics of on-site earth materials; Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-17 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Include subsurface exploration to refine geologic structure for cut slope stability;
x Establish specific remedial grading requirements, including but not limited to establishing parameters for stabilization/ buttressing of slopes, removal of unstable soil materials; x Provide grading, foundation, and structural design recommendations based on findings of future geotechnical investigations; x Address settlement, liquefaction, and structural design recommendations. Grading plans shall incorporate removal, where feasible, of all potentially liquefiable alluvium. The grading plans shall also incorporate placement of engineered fill in the canyons and installation of a subdrain system; x Address the potential for expansive soils. Representative soil samples of near-surface soil material shall be collected and tested for expansion potential after the completion of rough grading on-site. Expansive soils that are detrimental to the project shall be subject to special building/foundation design, deepened foundations, posttension foundations, soil removal, selective grading to blend highly expansive soils with soils of low expansivity, moisture conditioning, or other corrective measures as recommended by a licensed soils/geotechnical engineer and approved by the City Engineer prior to approval of each grading plan; x Include an evaluation of potentially corrosive soils and recommend appropriate corrective measures. If corrosive soils are found, corrective measures shall be incorporated into the grading plans; x Address collapsible/compressible material. This material shall be subject to removal or other corrective measures in all areas planned for structural fill. Topsoil, colluvium, alluvium, highly weathered bedrock, and landslide materials with settlement potential shall be subject to corrective measures such as removal and recompaction, surcharging, settlement monitoring, and/or other measures deemed appropriate by the geotechnical engineer of record and approved by the City Engineer prior to approval of each grading plan; Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-18 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Include appropriate laboratory testing to define soil engineering parameters;
x Include additional refraction lines to better ascertain rock hardness and rippability for specific planned cut areas;
x Include a review of seismic and faulting conditions on-site. Seismic design parameters identified for the project shall be incorporated into project design as applicable. Caltrans seismic design criteria for the proposed overcrossings shall be incorporated into overcrossing design and implementation; and, x Corrective work within Caltrans right-of-way shall be done in accordance with Caltrans standard specifications.
Mitigation Measures
MM 3-1 Prior to the approval of each rough grading plan, the property owner/developer shall submit a site specific geotechnical report prepared by a civil engineer based on recommendations of the preliminary geotechnical reports required under SC 3-3 to the Department of Public Works for review and approval. Site-specific geotechnical studies shall provide specific feasible recommendations for soils engineering, appropriate drains and subdrains in each Development Area, and address the potential for artesian conditions in Development Areas 1 and 2. As part of addressing the potential affects of groundwater on slope stability during future site specific investigations, the property owner/developer shall obtain and provide data from piezometers installed through the alluvium of Gypsum Canyon into the underlying bedrock, near proposed toe of slopes. The piezometers should be monitored for a period of one year to evaluate the potential artesian conditions with consideration for seasonal fluctuations in groundwater elevations.
The presence of elevated groundwater conditions on the project site could cause liquefaction. (Impact 4.3-2) SC 3-1, SC 3-2, SC 3-3, and MM 3-1 Less than significant The project site is located in an area where three landslide complexes have been mapped adjacent to or within the project site. (Impact 4.3-3) SC 3-1, SC 3-2, SC 3-3, MM 3-1, and Mitigation Measures MM 3-2 Prior to the approval of each grading plan, a note shall be added to the grading plan requiring that during grading operations, all grading and earthwork shall be performed under the observation of a registered geotechnical engineer in order to achieve proper sub-grade preparation, Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-19 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
selection of satisfactory materials, and placement and compaction of all structural fill. An engineering geologist shall map cut slopes during grading to identify any laterally continuous, adversely oriented, broken or fractured zones that may reduce slope stability. The note shall be prepared to the satisfaction of the Department of Public Works.
During construction, soil would be exposed and there would be an increased potential for soils erosion compared to existing condition. Soil erosion during a storm event and following completion of project development are addressed in Section 4.5, Water Quality.
PDF 5-1, SC 5-1, SC 5-2, and SC 5-3 provided below under Section 4.5, Water Quality Less than significant The proposed project includes cut and fill slopes. There is a potential for slope failure if these slopes are not properly designed and constructed. (Impact 4.3-4) SC 3-1, SC 3-2, SC 3-3, MM 3-1, and MM 3-2 Less than significant The proposed project may include blasting in areas where cuts exceed 100 feet. Blast-related impacts such as rock falls, reactivation of landslides and vibration could occur. (Impact 4.3-5) SC 3-1, SC 3-2, SC 3-3, MM 3-1, MM 3-2, and Mitigation Measures MM 3-3 Prior to the commencement of any blasting activities, the property owner/developer shall submit a blasting plan prepared by a qualified blasting specialist to the Fire Department and Department of Public Works for review and approval. A blasting permit shall be obtained from the Fire Department. A copy of the approved blasting plan shall be submitted to the Planning Department. The property owner/developer shall be responsible for all costs associated with the preparation of the blasting plan to the satisfaction of the Fire Department. The blasting plan shall be prepared in accordance with the United States Department of Interior, Office of Surface Mining (USOSM) standards and shall include, but not be limited to the following: a. Pre-blast survey b. Site and location of planned blasting and hours of operation (blasting to be conducted during the daylight hours only)
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-20 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
c. Notification of blasting activities to all property owners within onehalf mile of the blasting area, which may include (depending on location of blasting) private residents, Caltrans, the County of Orange, the City of Yorba Linda and any other persons/agencies determined appropriate by the Fire Department. This notification shall describe expected period and frequency that the blasting shall occur and give a contact phone number for any questions or complaints. All complaints shall be responded to in a method deemed satisfactory to the City of Anaheim Planning Director. d. Types and amounts of explosives e. Warning system information f. Methods of transportation and handling of explosives g. Minimum acceptable weather conditions h. Procedures for handling, setting, wiring and firing explosives i. Procedures for clearing and controlling access to blast danger j. Procedures for handling misfires and other unusual occurrences k. Emergency action plan l. Material safety data sheet for all explosives or other hazardous materials expected to be used.
m. Compliance with local, state and federal laws n. Measures to assess, control, and monitor noise and ground vibration from blasting, including:
x The project contractor shall use current state-of-the-art technology to keep blast-related vibration and air blast at off-site residential and other occupied structures as low as possible, consistent with blasting safety. In no instance shall blast vibration or air blast, measured on the ground adjacent to a residential or other occupied structure, be allowed to exceed the frequency dependent limits contained in the USOSM regulations.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-21 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x The project contractor shall use a blasting seismograph to monitor and record air blast and vibration for blasts within 1,000 feet of residences and other occupied structures to verify that measured levels are within the recommended limits at those locations. If blasting is found to exceed specified levels, blasting shall cease, and alternative blasting or excavation methods that result in the specified levels not being exceeded shall be employed. x Air blast and vibration monitoring shall take place at the nearest off-site residential or other occupied structure. If vibration levels are expected to be lower that those required to trigger the seismograph at that location, or if permission cannot be obtained to record at that location, recording shall be accomplished at some closer site in line with the structure. Specific locations and distances where air blast and vibration are measured shall be documented in detail along with measured air blast and vibration amplitudes.
There are unsuitable soils on the project site (cut/fill slopes, compressible/collapsible material, fill materials, and expansive soils). (Impact 4.3-6) SC 3-1, SC 3-2, SC 3-3, MM 3-1, and MM 3-2 Less than significant There are expansive soils (as defined in Table 18-1-B of the Uniform Building Code (1994)) in areas proposed for construction. (Impact 4.3-7) SC 3-1, SC 3-2, SC 3-3, and MM 3-1 Less than significant The project would be consistent with relevant geology/soils-related goals and policies outlined in the City of Anaheim General Plan and SCAG RCPG.
PDFs, SCs, and MMs above apply No impact
Off-site Project Feature ImpactsThe off-site project features described in Section 3.3.4 are located in already developed areas and would not include any activities with the potential for significant impacts associated with geology/soils. Additionally, the PDFs and SCs identified for the on-site project features would also apply to off-site project features.
PDFs, SCs, and MMs above apply Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-22 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Caltrans-related Project Feature ImpactsThe SR-241/Weir Canyon Road interchange, SR-241 bridge overcrossing, and other proposed project features within Caltrans right-of-way, including remedial grading along SR-91, would be subject to similar geotechnical constraints and potentially significant impacts as the on-site project features described above. Due to the soil conditions, the interchange and bridge overcrossing would not be subject to liquefaction and Impact 4.3-2 would not apply. Construction activities and facilities within Caltrans right-of-way would be subject to an encroachment permit and would meet Caltrans requirements as identified in the mitigation program.
SC 3-1, SC 3-2, SC 3-3, MM 3-1, and MM 3-2 Less than significant SECTION 4.4 – HYDROLOGY On-Site Project Feature Impacts The proposed project would increase the amount of runoff from the project site; however, it would not create or contribute runoff water that would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff.
Project Design Features
PDF 4-1 The Mountain Park Specific Plan includes a Proposed Drainage System Plan (refer to Exhibit 3-9). Prior to approval of the first mass grading plan, the property owner/developer shall submit a Drainage and Runoff Management Plan (RMP) to the Department of Public Works for review and approval. The RMP shall demonstrate substantial conformance with the Proposed Drainage System included in the Mountain Park Specific Plan. The Drainage and Runoff Management Plan shall include the approximate timing for construction of the following drainage facilities: a. Gypsum Canyon Road/SR-91 Box Culvert Modification: A 1,500 linear foot culvert modification will be constructed at the downstream end of Gypsum Canyon to address existing deficiencies and accommodate proposed peak flows from the project site. The proposed storm drain improvement plan will extend the Gypsum Canyon Road/SR-91 box culvert inlet structure approximately 1,500 feet upstream following the existing alignment of the Gypsum Canyon Creek. At this location, the proposed Gypsum Canyon Road will be designed to serve as an impoundment to retain storm water runoff up to approximately 17 feet, which produces sufficient hydraulic head to convey 5,500 cfs through the culvert into Featherly Park. The elevation difference between the flow line of the culvert inlet and the top of the road is expected to be approximately 20 feet, Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-23 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
allowing for a freeboard of three feet. The extension of the culvert upstream, with the described design modifications to the inlet control, will prevent flooding onto Gypsum Canyon Road during large storm events. The proposed modification of the culvert will improve the flood control design capacity of the culvert from a 10-year storm event to a 100-year storm event. A confirmation of the structural integrity and design calculations of the existing culvert structure shall be completed prior to final design of the new box culvert extension. b. West Drainage Area Storm Drain Improvement: Minor storm drain improvements to an existing undersized 36-inch reinforced concrete pipe (RCP) that collects off-site runoff from the undisturbed slopes draining into The Summit will be upsized to the capacity of a 54-inch RCP for proper conveyance of the project flows into the existing 66-inch RCP. c. SR-91/Gypsum Canyon Road Storm Drain Improvement: A minor storm drain improvement will be implemented for the 4-acre subarea that used to drain into the existing culvert inlet but will not adequately drain after the culvert extension. The improvement will consist of a riser tower and a RCP (size to be determined) to collect the flows and connect directly into the triple box culvert at the approximate location of the existing culvert inlet. d. Featherly Regional Park Channel Improvements: The improvements to the box culvert outlet for energy dissipation of flood flows will include a concrete apron followed by riprap to reduce velocities down to the 10-12 feet per second (fps) range. Riprap will also be added to the embankments beyond the concrete apron. To provide additional stabilization of the channel downstream, flow velocities will be decreased to the range of 10-12 fps where turf-reinforced mesh blankets will be used, and vegetation re-established along the channel bottom and embankments. Turf-reinforced blankets (or equivalent alternatives) will continue along the embankment up to a maximum of 340 feet beyond the riprap leading up to the existing road crossing. Prior to approval of a grading permit, the property owner/developer shall provide evidence to the Department of Public Works that the design and construction of these improvements have been approved by the County of Orange Harbors, Beaches and Parks Department.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-24 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
e. Outlet Points to Natural Channels: Energy dissipation/velocity reduction devices will be employed to ensure flows are released at non-erosive velocities. Such devices may include: riprap, geotextiles, granule filters, fills, grade control structures and/or check dams, or equivalent measures. f. Vegetated floodwall for Community Center: As part of final design, a vegetated floodwall would be incorporated into the portion of the slope downstream of the community center as necessary to satisfy flood control requirements.
The proposed project would alter the topography and land cover in the project site and new impervious surfaces would be introduced in proposed Development Areas. These changes would increase the erosion from the project site which is discussed in Section 4.5, Water Quality. However, the proposed project would not substantially alter the existing drainage patterns of the site.
PDF 4-1 Less than significant
Due to the increase in impervious surface and change in drainage patterns on-site, the proposed project has the potential to change the flow velocity and/or volume of stormwater runoff.
PDF 4-1 Less than significant
The proposed project would not result in substantial increases in the rate or amount of surface water runoff in a manner that would result in flooding onor off-site. There would not be a significant change in the floodplain for Gypsum Canyon Creek. There would be no structures, including housing, within a 100-year flood elevation or flood hazard area as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map.
PDF 4-1 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-25 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
The proposed project would not deplete groundwater supplies. Groundwater in the project site is not currently used for drinking water or irrigation, and would not be used as a water supply for the proposed development. Groundwater supplies would potentially increase due to the cessation of groundwater pumping by on-site quarry operations.
No mitigation is required No impact
The project would be consistent with relevant hydrology-related goals and policies outlined in the City of Anaheim General Plan.
PDF 4-1 No impact
Off-site Project Feature Impacts
With the exception of proposed improvements to the Featherly Regional Park drainage, the off-site roadway and infrastructure improvements do not involve any activities or features that would result in potentially significant impacts related to hydrology during construction or operation. The proposed improvements within the Featherly Regional Park (described in PDF 4-1) are proposed to reduce potential increases in flow velocities resulting from the project.
PDF 4-1 Less than significant
Caltrans-related Project Feature Impacts
The impervious surfaces associated with the SR-241/Weir Canyon Road interchange and SR-241 bridge overcrossing, as well as the change in drainage patterns affecting Caltrans facilities along SR-241 and SR-91 were addressed through the impact analysis conducted for on-site changes in hydrology. The proposed project grading and development would require modifications to the design of Caltrans’ drainage facilities along SR-241 and SR-91. These design changes would not result in significant hydrology impacts and must be approved by Caltrans prior to issuance of an encroachment permit.
PDF 4-1 and Project Design Features
PDF 4-2 The Mountain Park Specific Plan includes a Proposed Drainage System Plan (refer to Exhibit 3-9), which includes drainage improvements within Caltrans right-of-way. Prior to issuance of an Encroachment Permit, the property owner/developer shall submit a Drainage Plan to Caltrans for review and approval. The Drainage Plan shall demonstrate substantial conformance with the Proposed Drainage System included in the Mountain Park Specific Plan. The Drainage Plan shall include the approximate timing for construction of the following drainage facilities: x SR-241 Drainage Improvements: The improvements along the SR-241 include the abandonment of the existing 72-inch corrugated steel pipe (CSP) in lieu of a 54-inch RCP, the modification of the 42-inch CSP outlet structure, the modification of several smaller drainage systems draining into the proposed 54-inch RCP and 42-inch CSP and the implementation of five Caltrans swales within the Caltrans right-of-way.
Less than significant.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-26 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
SECTION 4.5 – WATER QUALITY On-site Project Feature Impacts With the exception of total suspended solids (TSS), the amount of pollutants in the runoff from the project site would increase with the proposed project due to the increases in stormwater runoff volumes resulting from increases in impervious areas. The amount of TSS would decrease as the amount of sediment from the site would be reduced, primarily due to the elimination of mining operations.
Project Design Features
PDF 5-1 In furtherance of the Orange County Drainage Area Management Plan/City of Anaheim Local Implementation Plan (DAMP/LIP) requirements, the Mountain Park Specific Plan includes the following project design features that shall be incorporated into the final project Water Quality Management Plan (WQMP). These design features meet or exceed the requirements of the DAMP/LIP. Prior to approval of each mass or rough grading plan, the property owner/developer shall submit the Final WQMP to the Department of Public Works incorporating the following measures: a. Site Design BMPs: The following site design BMPs are practices designed to minimize runoff and the introduction of pollutants in storm water runoff. Minimize Impervious Area and Impervious Areas Directly Connected to Storm Drains x Minimize impervious areas by incorporating landscaped areas over substantial portions of the project area consistent with the Development Plan and Concept Landscape Plans. Single family residential landscape areas shall be determined by zoning development standards, including setbacks, lot coverage, street parkway standards, and design objectives; x Minimize directly connected impervious area by draining parking lots to landscaped areas or bioretention facilities to promote filtration and infiltration of storm water, if landscaping slopes are less than 2 percent and the project is not adjacent to steep slopes; x Utilize vegetated areas, e.g., setbacks, swales, end islands, and median strips, for biofiltration and bioretention of nuisance and storm runoff flows from parking lots and other impervious areas; x Design sidewalks to drain into landscaping and swales prior to discharging to the storm water conveyance system;
Selection of Construction Materials and Design Practices x Select building material for roof gutters and downspouts that do not include copper or zinc;
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-27 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Construct streets, sidewalks, and parking lot aisles to the minimum widths specified in the Anaheim Municipal Code or adopted Specific Plan and in compliance with the Development Plan and regulations for the Americans with Disabilities Act and safety requirements for fire and emergency vehicle access. Incorporate landscaped buffer areas between sidewalks and streets in compliance with the Development Plan and Anaheim Municipal Code; Conserve Natural Areas x Preserve existing riparian areas along Gypsum Canyon Creek and protect with buffer zones per the Development Plan;
x Preserve 2,163 acres of open space within the project boundary outside of the development area, including NCCP open space areas, open space devoted to conservation easements, and other open space; x Concentrate or cluster development on the least environmentally sensitive portions of the project site (e.g., the quarry site) while leaving the remaining land in a natural, undisturbed condition; x Use natural drainage systems to the maximum extent practicable or create drainages (e.g., vegetated swales) that mimic natural conveyances and allow for storm water infiltration as well as pollutant removal; x Maximize canopy interception and water conservation by preserving existing native trees and shrubs in natural open space areas outside of the development area, incorporating new trees into project design pursuant to landscape and reforestation plan, and including native or drought resistant plants in development plant palettes.
Protect Slopes and Channels x Protect slopes: minimize erosion potential with vegetative cover, route flows safely away from steep and/or sensitive slopes, stabilize disturbed slopes; Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-28 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Protect channels: control and treat flows in landscaping and/or other controls prior to reaching existing natural drainage systems, stabilize channel crossings, ensure that increases in runoff velocity and frequency caused by the project do not erode the channel, install energy dissipaters, such as riprap, at the outlets of storm drains or conveyances. b. Source Control BMPs: The following source control BMPs shall be implemented in order to minimize the amount of pollutants in dry weather (nuisance) flows and in storm water runoff from the project. Non-Structural Source Control BMPs N1 Education for property owners, tenants and occupants–practical information materials shall be provided to the first residents/occupants/ tenants on general housekeeping practices that contribute to the protection of storm water quality. The Homeowner’s Association (HOA) shall have an ongoing educational material distribution program. At a minimum, these materials shall cover the following topics: 1. The use of chemicals (including household type) that should be limited to the property, and avoidance of discharge of specified wastes via hosing or other means to gutters, catch basins, and storm drains.
2. The proper importance of appropriate irrigation techniques and proper handling/application of material such as fertilizers, herbicides, pesticides, cleaning solutions, paint products, automotive products, and swimming pool chemicals, and swimming pool drainage.
3. The environmental and legal impacts of illegal dumping of harmful substances into storm drains and sewers.
4. Alternative household products that are safer to the environment. 5. Household hazardous waste collection programs. 6. Used oil-recycling programs. 7. Proper procedures for spill prevention and clean up.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-29 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
8. Proper storage of materials that pose pollution risks to local waters.
9. Carpooling programs and public transportation alternatives to driving.
N2 Activity restrictions (Conditions, Covenants, and Restrictions)–Conditions, Covenants, and Restrictions (CC&Rs) shall be prepared as necessary and shall address surface water quality protection, or, alternatively, use restrictions shall be developed through lease terms. N3 Common area landscape management–ongoing maintenance shall be consistent with City of Anaheim Landscape Water Efficiency (Chapter 10.19 of the Anaheim Municipal Code), plus fertilizer and/or pesticide usage shall be consistent with County Management Guidelines for Use of Fertilizers (DAMP Section 5.5). See also, efficient irrigation systems under structural controls. N4 BMP maintenance–Homeowners Associations (HOAs) shall be responsible for the inspection and maintenance of structural BMPs (including treatment controls) located within the HOA boundaries. These BMPs are outlined below. N11 Common area litter control–HOA shall conduct litter patrol; provide for covered trash receptacles, trashcans with lids, and emptying of trash receptacles in common areas; note trash disposal violations by tenants/homeowners or businesses and report the violations to the owner/HOA for investigation shall be conducted. N14 Common area drainage facility inspection–Privately-owned drainage facilities shall be inspected each year and, if necessary, cleaned and maintained prior to the storm season, no later than October 1st each year. Drainage facilities include catch basins and inlets, catch basin inserts, water quality basins, detention basins, other treatment facilities, and open drainage channels. N15 Street sweeping private streets and parking lots–Streets shall be swept prior to the storm season in late summer/early fall, no later than October 1st of each year. Parking lots at the private community center shall be swept weekly at a minimum, weather permitting.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-30 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Structural Source Control BMPs x Provide Storm Drain Stenciling and Signage – all storm drain inlets and catch basins, constructed or modified, within the project area shall be stenciled or labeled. Signs, which prohibit illegal dumping, shall be posted at public access points along channels and creeks within the project area. Legibility of stencils and signs shall be maintained. x Trash Area Design – trash areas shall be paved, designed not to allow run-on, screened or walled to prevent off-site transport of trash; and covered to minimize direct precipitation. Common area litter control shall include a litter patrol, covered trash receptacles, emptying of trash receptacles in a timely fashion, and noting trash violations by tenants/homeowners and reporting the violations to the owner/HOA for investigation. Connection of trash area drains to the municipal storm drain system shall be prohibited. x Efficient Irrigation – the timing and application methods of irrigation water in common areas shall minimize the runoff of excess irrigation water into the storm water conveyance system. x Protect Slopes and Channels – storm water BMPs shall be included to decrease the potential for erosion of slopes and/or channels, and may include appropriate conveyance structures, landscaping, etc. x Hillside Landscaping – Hillside areas that are disturbed by project development shall be landscaped with deep-rooted, drought tolerant plant species selected for erosion control. x Fire Station – Catch basin inserts with hydrocarbon absorption mats shall be provided for the fire station and vehicle maintenance shall be performed indoors and shall therefore not enter into the storm drain system because indoor drains flow to the sanitary sewer system.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-31 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
c. Treatment Control BMPs: The following treatment control BMPs are a part of the conceptual water quality treatment program included in the Mountain Park Specific Plan (refer to Exhibit 3-10). Prior to the issuance of grading permits, the property owner/developer shall include the following features in the final WQMP submitted to the Department of Public Works for review and approval. x Storm water runoff from the disturbance area shall be routed to nine water quality basins. Collectively, the water quality basins shall treat runoff from approximately 488 acres within the disturbance area. The water quality basins shall incorporate dry extended detention to provide water quality treatment for storm flows. Dry extended detention basins are designed with outlets that detain the runoff volume from the water quality design storm (e.g., the 85th percentile 24-hour event) for some minimum time (36 hours) to allow particles and associated pollutants to settle out. x The water quality basins shall incorporate wetland vegetation along the low flow channel in the bottom of the basin for the treatment of dry weather flows and small storm events. These basins shall not contain ponded or standing water for periods in excess of 48 hours. x The park and school site shall have a water quality basin or BMP with equivalent treatment effectiveness with the sizing of the treatment based on the DAMP/LIP requirements. x Per the MS4 permit, the water quality basins within the proposed project shall be designed to contain a “water quality pool” sized to meet the maximized storm water capture volume for the area, from the formula recommended in Urban Runoff Quality Management, WEF Manual of Practice No. 23/ASCE Manual of Practice No. 87 (1998). The water quality pool is designed to drain in 36 hours. x Approximately 4.1 acres of roadway that does not drain to the basins shall be treated with filter strips (a type of biofilter) designed per the MS4 permit and DAMP/LIP requirements treating a flow rate two times the 85th percentile hourly rainfall as determined by historical rainfall. The water tank located in Development Area 7 shall also be treated using a filter strip or a bioswale, designed per DAMP/LIP requirements.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-32 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Offsite roadway improvements shall be treated by BMPs providing treatment equivalent to that provided by biofiltration (bioswales or filter strips) sized pursuant to the criteria in the MS4 permit.
Existing Regulations and Standard Conditions
SC 5-1 Prior to approval of each mass or rough grading plan, the property owner/developer shall submit a project water quality management plan (WQMP) to the Department of Public Works for review and approval. The WQMP shall demonstrate compliance with the implementation plans under the MS4 Permit, namely the Drainage Area Management Plan/Local Implementation Plan (DAMP/LIP).
SC 5-2 Prior to the approval of grading plans, the property owner/developer shall provide written evidence to the Department of Public Works that it has filed a Notice of Intent with the Regional Water Quality Control Board in order to obtain coverage under the Construction General Permit (CGP) (NPDES No. CAS000002, Resolution No. 2001-046, or the latest approved CGP). Pursuant to the permit requirements, the property owner/developer shall develop a Stormwater Pollution Prevention Plan (SWPPP) that incorporates Best Management Practices for reducing or eliminating construction related pollutants in the site runoff.
SC 5-3 Prior to approval of a grading plan, the Department of Public Works shall verify that the General Waste Discharge Requirements issued by the Santa Ana Regional Water Quality Control Board (RWQCB) Order No. R8-2003-0061, and NPDES No. CAG998001 (or latest approved equivalent) are in effect and shall govern discharges from construction dewatering and water line/sprinkler line testing should they occur during construction. The property owner/developer shall comply with these regulations including provisions requiring notification, testing and reporting of dewatering and testing-related discharges, which shall mitigate any impacts of such discharges.
There is a potential for water quality to be degraded during construction of the proposed project primarily due to the exposure of soils to rainfall/runoff and wind. There is also a potential for non-sedimentrelated pollutants (associated with construction materials, liquid products, and petroleum products) to degrade water quality.
SC 5-2 and SC 5-3 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-33 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
With the exception of the proposed fire station, the proposed project does not include any uses that would include equipment fueling, outdoor hazardous materials handling or storage, or delivery areas/storage docks. The catch basins at the fire station would be designed to reduce impacts to a level considered less than significant.
PDF 5-1 Less than significant
The project would be consistent with relevant water quality-related goals and policies outlined in the City of Anaheim General Plan and SCAG RCPG.
PDFs and SCs above apply No impact
Off-site Project Feature ImpactsAs with proposed on-site project features, the proposed off-site infrastructure and roadway improvements have the potential to degrade water quality during construction from increased erosion and use of construction materials. Off-site project features would be required to incorporate best management practices (BMPs) that meet or exceed the modeled performance standards for water quality basins and bioswales.
SC 5-2, SC 5-3, and PDF 5-1. Less than significant
Caltrans-related Project Feature Impacts
Similar to on-site and off-site project features discussed above, construction activities within Caltrans right-of-way have the potential to degrade water quality. The amount of pollutants in the runoff from Caltrans right-of-way would increase due to the increases in stormwater runoff volumes resulting from increases in impervious areas. Water quality treatment facilities treating runoff from areas within Caltrans right-of-way (if not being treated by on-site water quality features) would be constructed in compliance with Caltrans design requirements for water quality treatment facilities.
PDF 5-1 and Existing Regulations and Standard Conditions SC 5-4 Prior to issuance of an Encroachment Permit by Caltrans for construction within Caltrans right-of-way, the property owner/developer shall prepare a Water Pollution Control Program (WPCP) or Storm Water Pollution Prevention Plan (SWPPP), as required, in conformance with Caltrans Standard Plans and Standard Specifications for Water Pollution Control. The property owner/developer shall provide Caltrans Permits Branch with a copy of the WPCP or SWPPP, including BMPs to be implemented for construction activities, as required by the NPDES Statewide Storm Water Permit for General Construction activities.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-34 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
SC 5-5 Prior to issuance of an Encroachment Permit by Caltrans for construction within Caltrans right-of-way, a note shall be added to the grading plan requiring that any construction activities within Caltrans right-of-way shall be in compliance with the requirements of the Caltrans Statewide NPDES Storm Water Permit, Order No. 99-06-DWQ, NPDES No. CAS000003, in addition to the BMPs specified in the Caltrans Storm Water Management Plan. When applicable, the property owner/developer shall also conform to the requirements of the General NPDES Permit for Construction Activities, Order N. 99-08-DWQ, NPDES No. CAS 000002, and any subsequent General Permit in effect at the time of issuance of an Encroachment Permit SECTION 4.6 – BIOLOGICAL RESOURCES On-site Project Feature Impacts The following plant and wildlife species listed by Federal or State agencies as threatened or endangered were observed on-site or have the potential to occur. These species are covered or conditionally covered by the National Communities Conservation Plan/Habitat Conservation Plan (NCCP/HCP): Santa Monica Mountains dudleya, coastal California gnatcatcher, and American peregrine falcon.
Project Design Features
PDF 6-1 Prior to approval of tentative tract or parcel maps, the project biologist shall submit written verification in the form of a note on the tentative tract or parcel maps, that the project development boundaries are consistent with the Open Space, Trail and Bikeway Plan identified in Exhibit 3-8. The proposed project includes 2,163 acres of preserved open space: NCCP/ HCP Reserve (940 acres), The Nature Conservancy Anaheim Conservation Easement (TNC ACE) (913 acres) and 310 acres of additional open space throughout the project site not related to the NCCP/HCP Reserve or TNC ACE.
Less than significant
Existing Regulations and Standard Conditions
SC 6-4 Prior to approval of grading plans, the project biologist shall review the following contract specifications to verify that the following measures to minimize impacts to the coastal California gnatcatcher and other coastal sage scrub (CSS) species have been included on the specifications. The project biologist shall provide written evidence to the Department of Public Works in the form of a note on the grading plans that this condition has been completed.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-35 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x To the maximum extent practicable, no grading of coastal sage scrub (CSS) habitat that is occupied by nesting gnatcatchers will occur during the breeding season (February 15 through July 15). It is expressly understood that this provision and the remaining provisions of these “construction-related minimization measures” are subject to public health and safety considerations. These considerations include unexpected slope stabilization, erosion control measures and emergency facility repairs. In the event of such public health and safety circumstances, landowners or public agencies/utilities will provide United State Fish and Wildlife Service/California Department of Fish and Game (USFWS/CDFG) with the maximum practicable notice (or such notice as is specified in the Natural Communities Conservation Program/Habitat Conservation Plan (NCCP/HCP) to allow for capture of gnatcatchers, cactus wrens, and any other CSS Identified Species that are not otherwise flushed, and will carry out the following measures only to the extent as practicable in the context of the public health and safety considerations. x Prior to commencement of grading operations or other activities involving significant soil disturbance, all areas of CSS habitat to be avoided under the provisions of the NCCP/HCP, shall be identified with temporary fencing or other markers clearly visible to construction personnel. Additionally, prior to the commencement of grading operations or other activities involving disturbance of CSS, a survey will be conducted to locate gnatcatchers and cactus wrens within 100 feet of the outer extent of projected soil disturbance activities and the locations of any such species shall be clearly marked and identified on the construction/grading plans.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-36 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x A monitoring biologist, acceptable to USFWS/CDFG will be on-site during any clearing of CSS. The landowner or relevant public agency/utility will advise USFWS/CDFG at least seven (7) calendar days [and preferably fourteen (14) calendar days] prior to the clearing of any habitat occupied by Identified Species to allow USFWS/CDFG to work with the monitoring biologist in connection with bird flushing/capture activities. The monitoring biologist will flush Identified Species (avian or other mobile Identified Species) from occupied habitat areas immediately prior to brush-clearing and earth-moving activities. If birds cannot be flushed, they will be captured in mist nets, if feasible, and relocated to areas of the site to be protected or to the NCCP/HCP Reserve System. It will be the responsibility of the monitoring biologist to assure that Identified bird species will not be directly impacted by brush-clearing and earth-moving equipment in a manner that also allows for construction activities on a timely basis. x Following the completion of initial grading/earth movement activities, all areas of CSS habitat to be avoided by construction equipment and personnel will be marked with temporary fencing and other appropriate markers clearly visible to construction personnel. No construction access, parking, or storage of equipment or materials will be permitted within such marked areas. x In areas bordering the NCCP Reserve System or Special Linkage/Special Management areas containing significant CSS identified in the NCCP/HCP for protection, vehicle transportation routes between cut-and-fill locations will be restricted to a minimum number during construction consistent with project construction requirements. Waste dirt or rubble will not be deposited on adjacent CSS identified in the NCCP/HCP for protection. Pre-construction meetings involving the monitoring biologist, construction supervisors, and equipment operators will be conducted and documented to ensure maximum practicable adherence to these measures. x CSS identified in the NCCP/HCP for protection and located within the likely dust drift radius of construction areas shall be periodically sprayed with water to reduce accumulated dust on the leaves as recommended by the monitoring biologist.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-37 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Mitigation Measure
MM 6-1 Prior to initiation of construction activities, the property owner/developer shall retain a project biological monitor approved by both the United States Fish and Wildlife Services and California Department of Fish and Game. The project biological monitor shall ensure that all permit conditions are met, all mitigation measures are properly implemented, and that the project complies with all standard conditions and project design features. The project biological monitor shall also be present during any pre-grade meetings, mass grading operations, and periodically during construction to ensure that sensitive resources designated for preservation are properly protected. Beginning with the initiation of construction or grading activities, the project biological monitor shall submit monthly status reports to the Planning Department to demonstrate compliance with this measure.
MM 6-6 Prior to approval of mass grading plans, the property owner/developer shall submit copies of contractor specifications to the Department of Public Works that include the following requirements to protect nesting birds regulated by the Migratory Bird Treaty Act: “When feasible, vegetation removal activities shall be scheduled between July 16 and February 14 to avoid the nesting season. This would ensure that no active nests would be disturbed and that removal could proceed rapidly. If vegetation removal activities shall occur during the nesting season (February 15 to July 15), all suitable habitat shall be thoroughly surveyed for the presence of nesting birds by a qualified biologist prior to removal. If any active nests are detected, the area shall be flagged, along with a minimum 50-foot buffer (buffer may range between 50 and 300 feet as determined by the monitoring biologist), and shall be avoided until the nesting cycle is complete or it is determined by the monitoring biologist that the nest has failed.” In addition, a biologist shall be present on the site to monitor the vegetation removal to ensure that nests not detected during the initial survey are not disturbed. The project biological monitor shall provide written notification to the Planning Department that these requirements have been accomplished following completion of grading activities associated with each grading permit.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-38 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
The proposed project would impact habitat for the southwestern willow flycatcher which is a species conditionally covered by the NCCP/HCP. (Impact 4.6-1) Mitigation Measure
MM 6-2 Prior to the approval of mass grading plans impacting jurisdictional areas, the property owner/developer shall provide a wetland mitigation plan approved by the ACOE and CDFG to the Department of Public Works. A total of 14.1 acres of riparian mitigation are necessary to offset the loss of ACOE and CDFG jurisdictional areas as a result of the proposed project. A Conceptual Wetland and Riparian Habitat Mitigation Plan has been prepared by JSA (February, 2005). The purpose of the mitigation plan is to:
x Create (establish), restore, or enhance wetland/riparian habitats on-site to the maximum extent practicable to minimize the on-site loss of ACOE and CDFG jurisdictional acreage and function, and provide offsite mitigation for the remainder of the impacts; x To implement, to the extent practicable, off-site mitigation in the Santa Ana River watershed, as close to the study area as possible or otherwise at a key ecological site; Less than significant
x To return jurisdictional habitats that are temporarily disturbed during construction to pre-construction conditions; and,
x To ensure that adjacent non-jurisdictional habitats are protected. The preferred on-site mitigation approach shall be approved by the ACOE, CDFG and RWQCB during the permitting process. One possible component of the on-site mitigation, to address the impacts of the box extension on the already disturbed Gypsum Canyon Creek channel, could include a rebuilt creek as a low-flow riparian corridor through the canyon mouth area. Conceptually, the box extension shall act as a high-flow bypass that efficiently conveys the more intense and destructive flood flows. The riparian corridor shall extend upstream to the road crossing of Gypsum Canyon Creek. The riparian corridor shall consist of a riverine channel flanked by planted embankments. The riverine channel would be soft bottom and the riparian vegetated floor would be nurtured by low and seasonal run-off diverted into it from a channel split from the new box culvert opening. This "splitter" shall consist of a junction opening that becomes a tunnel that would accommodate storm flows as well as wildlife movement under the road crossing to the riparian corridor.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-39 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
MM 6-3 Prior to approval of mass grading plans, the property owner/developer shall submit copies of contractor specifications to the Department of Public Works that include the following note: “Initial clearing of vegetation that has been identified as being used by the southwestern willow flycatcher shall be conducted outside of the breeding season or with the presence of a biological monitor during the breeding season to ensure that no individuals of this species are directly impacted. The breeding season for the southwestern willow flycatcher is between May 15 and July 31.” Following completion of initial clearing of vegetation, the project biological monitor shall provide written evidence to the Planning Department that this measure has been completed.
Braunton’s milk-vetch is federally-listed as endangered and is not covered by the NCCP/HCP. This species was observed onsite but not within the proposed Development Area. No direct or indirect impacts to this species would occur.
No mitigation is required No impact
The following sensitive plant and wildlife species listed by Federal or State agencies as threatened or endangered are not expected to occur on-site: Laguna Beach dudleya, Santa Ana River woollystar, thread-leaved brodiaea, arroyo toad, California red-legged frog, western yellow-billed cuckoo, San Diego fairy shrimp, Riverside fairy shrimp, quino checkerspot butterfly, least Bell’s vireo, and Pacific pocket mouse.
No mitigation is required No impact
The Santa Ana Sucker is a federally threatened species that was not observed onsite or expected to occur. However, this species occurs in the Santa Ana River (downstream of Prado Dam), which receives runoff from the project site. Recently designated critical habitat for this species did not include areas downstream of Prado Dam.
No mitigation is required No impact
Tecate cypress is a sensitive plant species observed onsite but would not be impacted by project development. This species is also covered by the NCCP/HCP.
No mitigation is required No impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-40 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Coulter’s matilija poppy and Catalina mariposa lily are sensitive species observed onsite that would be impacted by the project; however, they are fullycovered under the NCCP/HCP. NCCP/HCP covered species not observed, but with the potential to occur within the project site include Nuttall’s scrub oak and heart-leaved pitcher sage.
PDF 6-1 Less than significant
The proposed project would impact approximately 30 percent of the foothill mariposa lily population observed on-site. This species is conditionally covered under the NCCP/HCP.
PDF 6-1 and Existing Regulations and Standard Conditions SC 6-7 Prior to approval of mass or rough grading plans, the project biological monitor shall provide written verification to the Department of Public Works that the appropriate provisions of the comprehensive mitigation program for the foothill mariposa lily approved by the United State Fish and Wildlife Service (USFWS) and California Department of Fish and Game (CDFG) in March 2004 for the Irvine Company’s “North Ranch” projects (including the Mountain Park Specific Plan project) shall be implemented consistent with the approved plan The March 2004 mitigation program is included in Appendix E.
Less than significant
The proposed project would impact approximately 35 percent (approximately 7,000 individuals) of many-stemmed dudleya on-site. (Impact 4.6-2) PDF 6-1 and Mitigation Measure
MM 6-4 Prior to approval of mass grading plans for Development Areas 1, 2, 3, 4 and 7, the project biological monitor shall provide to the Planning Department a translocation program for the many-stemmed dudleya. The project biological monitor shall provide written notification to the Planning Department when the translocation program has been completed. The Mountain Park many-stemmed dudleya translocation program shall utilize the following techniques: x Relocation of corms from impact areas to receptor sites. The relocation of topsoil including corms (topsoil relocation method) shall occur in late fall/early winter (November-January). Corm salvage using the “soil sieving method” shall occur when soils are still dry; therefore, as early as possible between October and December. Corms collected using the “soil sieving method” shall be replanted as soon as possible after collection (November-January).
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-41 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Seed collection from impact areas followed by hand broadcasting at appropriate receptor sites; and, seed collection with propagation, nursery rearing, and translocation to appropriate sites. Seed collection would occur in late spring (May-June).
The following sensitive plant species were observed on-site or have the potential to occur and are not covered by the NCCP/HCP: Long-spined spineflower, chaparral nolina, Robinson’s peppergrass and Hall’s monardella.
PDF 6-1 Less than significant
Numerous non-listed wildlife species were observed on-site or have the potential to occur. These species are either covered by the NCCP/HCP or would have sufficient habitat in on-site preserved open space areas.
PDF 6-1, MM 6-6 and Mitigation Measure
MM 6-5 Prior to approval of street improvement plans for Gypsum Canyon Road, the property owner/developer shall submit copies of contractor specifications to the Department of Public Works that include the following requirements to protect the summer roost of Yuma myotis within the Gypsum Canyon culverts under the 91 Freeway: (1) construction activities to lengthen the culverts shall be scheduled outside of the critical breeding time (May 1 through August 15) to avoid direct impacts, If construction must occur between May 1 and August 15, all construction activities shall occur outside the current culverts and no deeper than 25 feet inside the culverts to avoid a negative effect on the colony, (3) no night work shall occur around the culvert openings and only construction lighting necessary for safety purposes shall be used near the culvert openings. Following completion of construction activities associated with the culverts, the project biological monitor shall provide written notification to the Planning Department that the contractor specifications have been complied with.
Less than significant
The golden eagle and prairie falcon are conditionally covered NCCP/HCP species that have been observed on-site. Pursuant to NCCP guidelines, activities that are more than ½ mile from an active or historically active nesting site may proceed without minimization or mitigation requirements. The project impact areas are more than ½ mile from potential nesting areas.
No mitigation is required No impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-42 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
The proposed project would remove 221.8 acres of plant communities considered sensitive by the resource agencies (namely CDFG) including 213.5 acres of coastal sage scrub, and 8.3 acres of coast live oak. Impacts to these communities are covered under the NCCP/HCP. The 43.0 acres of Tecate Cypress Forest on-site would be preserved.
PDF 6-1, SC 6-4 and Existing Regulations and Standard Conditions SC 6-5 Prior to approval of mass or rough grading plans, the property owner/developer shall report the amount of coastal sage scrub that would be impacted by proposed grading activities. The amount of coastal sage scrub impacts shall be noted on plans submitted for grading permits and submitted to the Planning Department and to the Nature Reserve of Orange County (NROC) to ensure that a proper accounting of coastal sage scrub impacts is recorded for purposes of the NCCP/HCP.
Less than significant
SC 6-6 On an annual basis until grading activities are complete, the property owner/developer shall provide the Planning Department and Nature Reserve of Orange County (NROC) with a calculation of the total amount of coastal sage scrub that has been removed during the calendar year.
The proposed project would impact a total of 2.1 acres of cottonwood-willow riparian woodland onsite. (Impact 4.6-3) PDF 6-1, MM 6-2 and Existing Regulations and Standard Conditions SC 6-1 Prior to approval of mass or rough grading plans impacting jurisdictional areas, the property owner/developer shall provide written evidence to the Department of Public Works that compliance with the provisions of Section 1602 of the California Fish and Game Code have been complied with. This shall be accomplished by providing a copy of the executed Streambed Alteration Agreement.
SC 6-2 Prior to approval of mass or rough grading plans impacting jurisdictional areas, the property owner/developer shall provide the Department of Public Works with a copy of the executed Section 404 permit obtained from the Army Corp of Engineers (ACOE).
SC 6-3 Prior to approval of mass or rough grading plans, the property owner/developer shall provide the Department of Public Works with a copy of the Section 401 water quality certification obtained from the Regional Water Quality Control Board (RWQCB).
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-43 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Project implementation would also result in the direct removal of 339.4 acres of several nonsensitive plant communities including 296.0 acres of chaparral communities, 16.5 acres of annual grassland communities, 2.0 acres of sumac savannah, 14.2 acres of oak savannah, 2.7 acres of mule fat scrub, 4.4 acres of mule fat scrub/coast live oak woodland, 0.2 acre of Mexican elderberry woodland, and 3.4 acres of cliff and rock communities. These communities are not considered sensitive by resource agencies and impacts to them would not reduce these communities below self-perpetuating levels throughout the region. In addition, substantial amounts of each community are preserved in open space.
PDF 6-1 Less than significant
The proposed project would impact 6.25 acres of waters of the U.S., and 10.73 acres of CDFG jurisdiction on-site. (Impact 4.6-4) SC 6-1, SC 6-2, SC 6-3, and MM 6-2 Less than significant The proposed project would interfere with the local movement of resident wildlife. However, it provides additional buffer areas in the form of the ACE and other open space beyond the NCCP/HCP Reserve boundary, and avoids the ridge separating Mountain Park from Coal Canyon. Under the NCCP/HCP, it was determined that the Reserve design incorporated sufficient connectivity for purposes of wildlife movement that impacts of development within development areas designated by the NCCP/HCP do not require further mitigation.
PDF 6-1 Less than significant
The proposed project would be consistent with the provisions of the NCCP/HCP and the goals and policies of other relevant planning documents related to biological resources.
PDFs, SCs, and MMs above apply No impact
Off-site Project Feature Impacts
Off-site project features would not impact suitable habitat for federally-or state-listed, or special status plant and/or wildlife species.
No mitigation is required No impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-44 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Off-site project features would impact 0.2 acre of sycamore riparian woodland. (Impact 4.6-3) 1.2 acres of coastal sage scrub habitat would be impacted; however, this habitat is an NCCPcovered species. There would be no impacts within the NCCP/HCP Reserve area.
PDF 6-1, SC 6-1, SC 6-2, SC 6-3, and MM 6-2 Less than significant Off-site project features would impact 0.31 acre of waters of the U.S., and 0.5 acre of CDFG jurisdiction. (Impact 4.6-4) SC 6-1, SC 6-2, SC 6-3, and MM 6-2 Less than significant Off-site project features would not result in habitat fragmentation.
No mitigation is required No impact
Caltrans-related Project Feature Impacts
Project features within Caltrans right-of-way would not impact suitable habitat for federally- or statelisted, or special status plant and/or wildlife species.
No mitigation is required No impact
Project features within Caltrans right-of-way would not be within NCCP/HCP Reserve areas.
No mitigation is required No impact
Project features within Caltrans right-of-way would impact 0.002 acre of waters of the U.S., and 0.012 acre of CDFG jurisdiction. (Impact 4.6-4) SC 6-1, SC 6-2, SC 6-3, and MM 6-2 Less than significant Project features within Caltrans right-of-way would not impact wildlife movement, including the Coal Canyon Biological Corridor.
No mitigation is required No impact
SECTION 4.7 – TRAFFIC AND CIRCULATION The traffic and circulation analysis addresses on-site, off-site, and Caltrans-related project feature impacts. At buildout, the proposed project would generate 25,145 daily trips (2,325 of which would be generated in the AM peak hour and 2,522 of which would be generated during the PM peak hour). No significant impacts to study intersections would occur under the following traffic scenarios: Existing Conditions Plus Project, Year 2010 (Committed Circulation Plus Project) Conditions.
Project Design Features PDF 7-1 The Mountain Park Specific Plan includes a circulation system consisting of on-site roadways (refer to Exhibit 4.7-5). The tentative tract or parcel maps submitted for review and approval, will incorporate preliminary street design features (i.e. cross-sections, alignment and grades) demonstrating consistency with the proposed circulation system. Prior to approval of each tentative tract or parcel map, the subdivision map shall be prepared consistent with the Mountain Park Specific Plan Circulation System Plan (Exhibit 4.7-5) to the satisfaction of the City Engineer. All street improvements within the subdivision map shall be completed prior to the final building and zoning inspection for units served by said improvement.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-45 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
PDF 7-2 The Mountain Park Specific Plan includes a circulation system including the following off-site roadway improvements (refer to Exhibit 4.7-5) identified in the Mountain Park Specific Plan, the City of Anaheim General Plan and Orange County Master Plan of Arterial Highways. The development area plans and tentative tract or parcel maps, submitted for review and approval, shall incorporate preliminary street design features (i.e. cross-sections, alignment and grades) demonstrating that the proposed circulation system is consistent with that defined in the Mountain Park Specific Plan, the City of Anaheim General Plan and the Orange County Master Plan of Arterial Highways. x Gypsum Canyon Road Improved from a two-lane undivided roadway to a four-lane divided roadway from the SR-91 westbound off-ramp to the proposed Santa Ana Canyon Road realignment. A construction contract for improvements to this portion of Gypsum Canyon Road shall be awarded prior to issuance of the first building permits in development areas east of SR-241. The improvements shall be substantially completed prior to final building and zoning inspection for the first phase of development for areas east of SR-241. x Santa Ana Canyon Road – Realign and improve from a two-lane undivided roadway to a four-lane divided roadway from SR-241 to Gypsum Canyon Road. A construction contract for improvements to this portion of Santa Ana Canyon Road shall be awarded prior to issuance of the first building permits in development areas east of SR-241. The improvements shall be substantially completed prior to final building and zoning inspection for the first phase of development for areas east of SR-241. x Weir Canyon Road (Oak Canyon Drive to Blue Sky Way) – Restripe approximately 600-feet to transition from a six-lane roadway at Oak Canyon Drive to a four-lane roadway at Blue Sky Way prior to issuance of building permits for Development Areas 3 and 7. x Weir Canyon Road (Blue Sky Way to SR-241) Construct as a fourlane divided roadway from Blue Sky Way to SR-241 (includes elimination of the northbound left-turn lane at the Weir Canyon Road/Blue Sky Road intersection). Improvements to this portion of Weir Canyon Road shall be completed prior to final building and zoning inspection for Development Areas 3 and 7.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-46 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Gypsum Canyon Road and SR-91 Westbound Ramp intersection – Add second northbound through lane. A construction contract for improvements to this portion of intersection shall be awarded prior to issuance of building permits for development areas east of SR-241. The improvements shall be substantially completed prior to final building and zoning inspection for the first phase of development for areas east of SR-241. x Gypsum Canyon Road and SR-91 Eastbound Ramp intersection – Add second northbound and southbound through lanes. A construction contract for improvements to this portion of intersection shall be awarded prior to issuance of building permits in development areas east of SR-241. The improvements shall be substantially completed prior to final building and zoning inspection for the first phase of development areas for east of SR-241. x Gypsum Canyon Road/Santa Ana Canyon Road intersection – Improve to provide two southbound through lanes and a southbound right-turn lane, two northbound through lanes and a northbound left-turn lane, and two eastbound left-turn lanes and an eastbound right-turn lane. A construction contract for improvements to this intersection shall be awarded prior to first building permits in development areas east of SR-241. The improvements shall be substantially completed prior to final building and zoning inspection for the first phase of development for areas east of SR-241. x Oak Canyon Drive, east of Running Springs Road – This portion of Oak Canyon Drive within City right-of-way will be abandoned by the City of Anaheim and improved with a vehicle maintenance road and landscaping (see Exhibit 3-17). The maintenance road will be gated. Improvements associated with this portion of Oak Canyon Drive within City right-of-way shall be substantially completed prior to issuance of the first building permits in development areas west of SR-241.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-47 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
PDF 7-3 The proposed project includes the construction of the SR-241/Weir Canyon Road interchange with ramps to and from the south on SR-241 and construction of a bridge over SR-241 for Mountain Park Drive. Prior to completion of the Mountain Park Drive bridge over-crossing, the design for the construction of the SR-241/Weir Canyon Road interchange shall be awarded. Construction of the SR-241/Weir Canyon Road interchange shall be completed prior to issuance of the 421st building permit on the east side of SR-241.
PDF 7-4 The proposed project includes the construction of a bridge over SR-241 for Mountain Park Drive. Prior to opening of models for development areas east of SR-241, the Mountain Park Drive over-crossing construction shall be completed.
Existing Regulations and Standard Conditions
SC 7-1 Prior to the issuance of each building permit, the Foothill/Eastern Transportation Corridor Major Thoroughfare and Bridge Fees shall be paid by the property owner/developer to the City of Anaheim. Payment of these fees provides for the project’s fair share contribution to the ultimate improvements to SR-241 and SR-261.
Mitigation Measures
MM 7-3 Prior to the approval of each development area plan, the property owner/developer shall submit a traffic phasing plan. The plan shall be reviewed and approved by the Department of Public Works, Development Services Division and Traffic Engineering Division, and the Fire Department. The plan shall also be submitted for review and comment by Caltrans if any portion of the plan involves Caltrans facilities. The plan shall include the following items: 1. Documentation of the number of units and product types of each development area, and resulting Level of Service (LOS) shall be provided for locations listed in PDF 7-2.
2. Phasing of roadway construction, specifying which roads shall be constructed as backbone streets and which roads shall be constructed with tract development.
3. Traffic improvements (including signals, signage and striping) to local streets, arterials and intersections, freeway interchanges and bridge over-crossings.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-48 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
4. Identification of measures that will be incorporated to minimize the impacts of project construction traffic on Gypsum Canyon Road between the SR-91 westbound off-ramp and Santa Ana Canyon Road; Gypsum Canyon Road/SR-91 interchange ramps; and Santa Ana Canyon Road between Gypsum Canyon Road and Weir Canyon Road prior to completion of the improvements listed in PDF 7-2.
MM 7-4 Prior to approval of a grading plan for each development area, the property owner/developer shall submit a traffic control plan including construction haul routes, duration and location of lane closures, and any pedestrian-related impacts to sidewalks and intersection crossings, for review and approval by the Department of Public Works, Development Services Division and Traffic Engineering Division.
The Weir Canyon Road/La Palma Avenue intersection would operate at LOS E during the AM peak hour under the Year 2025 Committed Circulation System “no project” and “with project” scenarios as well as the Year 2025 MPAH Buildout “with project” scenario. The project’s contribution to the intersection capacity utilization (ICU) value at this intersection under these scenarios is estimated to be .01 which would be a significant impact. (Impact 4.7-1) Based on the project’s significant impact at the Weir Canyon Road/La Palma Avenue intersection, the project is also assumed to significantly impact Weir Canyon Road south of the intersection (between SR-91 and La Palma Avenue) under the same scenarios. (Impact 4.7-2) Mitigation Measures
MM 7-1 Prior to issuance of first building permit, the property owner/developer shall make one lump sum payment for the fair share of the cost to the City of Anaheim for implementation of the following roadway and intersection improvements. Evidence of payment shall be provided to the Department of Public Works. x Weir Canyon Road/La Palma Avenue Intersection – (1) Add a third northbound through lane and convert southbound right-turn lane to shared third through/right-turn lane, and (2) convert the second eastbound through lane to a shared second through/second right-turn lane (this would require eliminating the existing eastbound right-turn green arrow overlap with the northbound left-turn movement). The first improvement is committed to be constructed before the year 2010 by the Cities of Anaheim and Yorba Linda using secured Orange County Measure M funds and matching local funds that have yet to be allocated. The property owner/developer is responsible for paying its fair share of the funds that have yet to be allocated. The second improvement is not funded and the applicant shall be responsible for paying its fair share of the entire cost of the improvement. The project share of future AM and PM peak hour traffic at this intersection under 2025 MPAH build-out conditions with the East Orange GPA and MPAH Amendments is approximately 37 percent.
Significant and unavoidable1
1 Impacts 4.7-1 and 4.7-2 are considered significant and unavoidable since the improvements required to mitigate these impacts are dependent on approval and financing from the City of Yorba Linda. Although the project’s impact is mitigated by payment of fair-share costs for improvements by the property owner/developer, the City of Anaheim cannot require another jurisdiction to implement these improvements.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-49 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Weir Canyon Road between La Palma Avenue and SR-91- Improve from a four-lane divided roadway to a six-lane divided roadway. This roadway is committed to be improved by the Cities of Anaheim and Yorba Linda using secured Orange County Measure M funds and matching local funds that have yet to be allocated. The property owner/developer is responsible for paying its fair share of the funds that have yet to be allocated. The project share of future AM and PM peak hour traffic on this roadway under 2025 MPAH build-out conditions with the East Orange GPA and MPAH Amendments is approximately 30 percent. x Weir Canyon Road/Santa Ana Canyon Road Intersection - Convert eastbound third through lane to third left-turn lane. This is a noncommitted long-range improvement and the applicant shall be responsible for paying its fair share of the entire cost of the improvement. The project share of future AM and PM peak hour traffic at this intersection under 2025 MPAH build-out conditions with the East Orange GPA and MPAH Amendments is approximately 35 percent.
The project’s contribution to the Weir Canyon Road/Santa Ana Canyon intersection ICU value would be .03 under the 2025 (MPAH buildout) and .04 under the 2025 (MPAH buildout with East Orange GPA and MPAH Amendments), which constitutes a significant contribution of future traffic for a location such as this where long-range noncommitted improvements have been identified in the City of Anaheim General Plan. (Impact 4.7-3) MM 7-1 Less than significant
The proposed project would not exceed, either individually or cumulatively, a level of service standard established by the Orange County Congestion Management Program (CMP) for the following roads and highways in the Mountain Park traffic analysis study area: SR-91, SR-241 and Imperial Highway.
PDF 7-1, PDF 7-2, PDF 7-3, and PDF 7-4 Less than significant Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-50 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Due to its steep grade, Mountain Park Drive has the potential for increased hazards related to speed and visibility. (Impact 4.7-4) Mitigation Measures
MM 7-2 Prior to approval of street improvement plans for Mountain Park Drive, the property owner/developer shall provide a final roadway design plan to the Department of Public Works with Mountain Park Drive designed to Modified Hillside Collector standards and with curvilinear alignments that provide adequate sight distance for safety purposes as approved by City Engineer.
Less than significant
Parking would be provided for residential and nonresidential (private community recreation center, fire station, etc.), and would be consistent with the parking requirements outlined in the proposed Mountain Park Specific Plan Amendment and the City of Anaheim Municipal Code.
No mitigation is required No impact
Access to the proposed project would be provided from Santa Ana Canyon Road and Gypsum Canyon Road to the north and from a proposed extension of Weir Canyon Road to the west. In addition, the project would provide roadway design features to facilitate emergency access/service.
No mitigation is required No impact
The proposed project includes public and private sidewalks and trails, as well as on-street bikeways to accommodate the recreational and transportation needs of residents.
No mitigation is required No impact
The project would be consistent with relevant traffic/circulation-related goals and policies of the City of Anaheim and SCAG.
PDFs, SCs, and MMs above apply No impact
SECTION 4.8 – AIR QUALITY The air quality analysis addresses on-site, off-site, and Caltrans-related project feature impacts. Project-related grading activities would result in a significant short-term construction-related air quality impact for the following air pollutants: CO, ROG, NOX and PM10. (Impact 4.8-1) Construction: Particulate Emission (PM10) Control
MM 8-1 Prior to approval of the first grading plan, the following requirements shall be incorporated into the Storm Water Pollution Prevention Program (SWPPP) and Erosion and Sedimentation Control Plan submitted for review and approval by the Department of Public Works. During construction of the proposed project, the property owner/development and its contractors shall be required to comply with regional rules, which shall assist in reducing short-term air pollutant emissions. SCAQMD Rule 402 requires that air pollutant emissions not be a nuisance off-site. SCAQMD Rule 403 requires that fugitive dust be controlled with the best available control measures so that the presence of such dust does not remain Significant and unavoidable impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-51 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
visible in the atmosphere beyond the property line of the emission source. Two options are presented in Rule 403: monitoring of particulate concentrations or active control. Monitoring involves a sampling network around the project with no additional control measures unless specified concentrations are exceeded. The active control option does not require any monitoring, but requires that a list of measures be implemented starting with the first day of construction. Rule 403 requires that “No person conducting active operations without utilizing the applicable best available control measures included in Table 1 of this Rule to minimize Fugitive dust emissions from each fugitive dust source type within the active operation.” The measures from Table 1 of Rule 403 are presented in Table 15 in Appendix H. The applicable measures presented in Table 1 are required to be implemented by Rule 403. Rule 403 requires that “Large Projects” implement additional measures. A Large Project is defined as “any active operations on property which contains 50 or more acres of disturbed surface area; or any earth-moving operation with a daily earth-moving or throughput volume of 3,850 cubic meters (5,000 cubic yards) or more three times during the most recent 365 day period. Grading of the project will be considered a Large Project under Rule 403. Therefore, the project will be required to implement the applicable actions specified in Table 2 of the Rule. Table 2 from Rule 403 is presented in Table 16 of Appendix H. As a Large Operation, the project will also be required to: x Submit a fully executed Large Operation Notification (SCAQMD Form 403N) to the SCAQMD Executive Officer within 7 days of qualifying as a large operation; x Include, as part of the notification, the name(s), address(es), and phone number(s) of the person(s) responsible for the submittal, and a description of the operation(s), including a map depicting the location of the site; x Maintain daily records to document the specific dust control actions taken, maintain such records for a period of not less than three years; and make such records available to the Executive Officer upon request.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-52 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Install and maintain project signage with project contact signage that meets the minimum standards of the Rule 403 Implementation Handbook, prior to initiating any earthmoving activities. x Identify a dust control supervisor that is employed by or contracted with the property owner/developer, is on the site or available on-site within 30 minutes during working hours, has the authority to expeditiously employ sufficient dust mitigation measures to ensure compliance with all Rule requirements, and has completed the AQMD Fugitive Dust Control Class and has been issued a valid Certificate of Completion for the class. x Notify the SCAQMD Executive Officer in writing within 30 days after the site no longer qualifies as a large operation.
Rule 403 also requires that the construction activities “shall not cause or allow PM10 levels exceed 50 micrograms per cubic meter when determined by simultaneous sampling, as the difference between upwind and down wind sample.” Large Projects that cannot meet this performance standard are required to implement the applicable actions specified in Table 3 of Rule 403. Table 3 from Rule 403 is presented in Table 17 of Appendix H. Rather than perform monitoring to determine conformance with the performance standard, which will not reduce PM10 emissions, the project shall implement all applicable measures presented in Rule 403 Table 3 regardless of conformance with the Rule 403 performance standard. This potentially results in a higher reduction of particulate emissions than if these measures were implemented only after being determined to be required by monitoring.Further, Rule 403 requires that that the project shall not “allow track-out to extend 25 feet or more in cumulative length from the point of origin from an active operation.” All track-out from an active operation is required to be removed at the conclusion of each workday or evening shift. Any active operation with a disturbed surface area of five or more acres or with a daily import or export of 100 cubic yards or more of bulk materials must utilize at least one of the measures listed in Table 18 of Appendix H at each vehicle egress from the site to a paved public road:
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-53 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Construction: Construction Equipment Emission Control MM 8-2 Prior to approval of grading plans, the property owner/developer shall include the following notes on the contractor specifications submitted for review and approval by the Department of Public Works: “To reduce construction equipment emissions, the following measures shall be implemented when feasible. x Use low emission mobile construction equipment. The property owner/ developer shall comply with CARB requirements for heavy construction equipment. x Maintain construction equipment engines by keeping them tuned. x Use low sulfur fuel for stationary construction equipment. This is required by SCAQMD Rules 431.1 and 431.2.
x Utilize existing power sources (i.e., power poles) when feasible. This measure would minimize the use of higher polluting gas or diesel generators. x Configure construction parking to minimize traffic interference. x Minimize obstruction of through-traffic lanes. When feasible, construction should be planned so that lane closures on existing streets are kept to a minimum. x Schedule construction operations affecting traffic for off-peak hours. x Develop a traffic plan to minimize traffic flow interference from construction activities (the plan may include advance public notice of routing, use of public transportation and satellite parking areas with a shuttle service. x Use aqueous diesel fuel where feasible and reasonably commercially available.
x Use cooled exhaust gas recirculation (EGR) where feasible and reasonably commercially available.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-54 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Several of the mitigation measures listed above are advanced emission control technologies, which are currently not commercially available. For example, aqueous diesel fuel reduces NOX formation by reducing combustion temperatures, resulting in lower NOX emissions. According to the SCAQMD, the current availability of this fuel technology is limited, and it may not be available for use for the project. In addition, with EGR diesel engines, a small amount of hot exhaust gas is routed through a cooler and mixed with fresh air entering the engine. The exhaust gas helps reduce the temperature during combustion, which lowers the formation of thermal NOX. EGR technology is in the development phase, and has not been fully commercialized. To the extent that the advanced emissions control technologies become reasonably commercially available, or are required by the CARB from grading contractors, then such advanced emissions control technologies will be used.
Project-related regional air emissions would exceed established thresholds for the following air pollutants: CO, ROG, and NOX. (Impact 4.8-2) Regional Operational Impacts MM 8-3 The property owner/developer shall reduce operation-related emissions through implementation of practices identified in SCAQMD’s CEQA Handbook and the URBEMIS2002 model. SCAQMD’s CEQA Handbook includes several measures that can be used to minimize emissions associated with residential projects. In addition, the URBEMIS2002 model identifies several measures, some of which overlap those in the CEQA Handbook. The following measures, based on these sources, shall be implemented by the property owner/developer and contractors, where feasible to reduce criteria pollutant emissions from stationary sources directly related to the project. Said measures shall be included on plans submitted for residential building permits: x install solar or low-emission water heaters; x use central water-heating systems; x use built-in, energy-efficient appliances; and x ensure that sidewalks and pedestrian paths are installed throughout the project area.
Significant and unavoidable impact
MM 8-4 All buildings shall comply with Title 24, Part 6. Reducing the need to heat or cool structures by improving thermal integrity will result in a reduced expenditure of energy and a reduction in pollutant emissions. Any necessary written evidence and/or standard details demonstrating compliance with Title 24, Part 6, shall be included on plans submitted for building permits.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-55 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
The proposed project contributes to a net increase in CO, NOX, PM10 and ROG. Therefore, the proposed project would have a significant cumulative air quality impact. (Impact 4.8-3) MM 8-1, MM 8-2, MM 8-3, and MM 8-4 Significant and unavoidable cumulative impact
Construction and operation of the proposed project would expose sensitive receptors to pollutant concentration that exceed SCAQMD thresholds. (Impact 4.8-4) MM 8-1, MM 8-2, MM 8-3, and MM 8-4 Significant and unavoidable impact
The project would be consistent with relevant air quality-related goals and policies of the City of Anaheim General Plan, SCAG’s RCPG, and the South Coast Air Quality Management Plan.
MM 8-1, MM 8-2, MM 8-3, and MM 8-4 No impact
SECTION 4.9 NOISE On-site Project Feature Impacts
Construction activities in Development Areas 3 and 7 would be adjacent to existing residences west of the project site. Noise levels generated by general grading and construction within 3,000 feet of residences may occasionally exceed the 60 dBA limit in the Anaheim Noise Ordinance at the nearest existing homes and would expose these residences to noise levels that exceed City noise standards.
Existing Regulations and Standard Conditions
SC 9-1 Prior to approval of grading plans and/or prior to issuance of building permits, plans shall include a note indicating that noise-generating project construction activities in the City of Anaheim shall not occur between the hours of 7:00 p.m. and 7:00 a.m. This requirement applies to construction activities within 3,000 feet of residential uses, consistent with the City of Anaheim Noise Ordinance.
Less than significant
The proposed project may require blasting during construction. Blasting activities could potentially result in significant noise and vibration impacts. (Impact 4.9-1) MM 3-3 in Section 4.3, Geology and Soils Less than significant Proposed uses within Development Areas 3, 4, 5 and 7 adjacent to SR-241, SR-91, and Weir Canyon Road would be exposed to noise levels in excess of the City of Anaheim Noise Element exterior noise standard of 65 CNEL. (Impact 4.9-2) Project Design Features
PDF 9-1 The Mountain Park Specific Plan includes a conceptual grading plan. The conceptual grading plan includes berms in the following locations as shown on Exhibit 4.9-7 that would reduce exterior noise levels in areas behind the berms to less than 65 CNEL. Prior to the approval of grading plans for development areas that require sound attenuation measures, the property owner/developer shall submit grading plans to the Department of Public Works that demonstrate conformance with the conceptual grading plan included in the Specific Plan, including the following: x Ten to 40 foot high berms (above pad elevation) along SR-241 in Development Area 4.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-56 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
x Intermittent berms with heights 10 to 20 feet above pad elevations are also included along SR-91 in Development Area 5. Final berm design shall be shown on precise grade permits for specific builder projects.
Mitigation Measures
MM 9-1 Prior to the approval of grading plans for Development Areas 3, 4, 5, and 7, a detailed acoustical analysis shall be prepared by a qualified acoustical consultant and submitted to the Planning Department for review and approval. This acoustical analysis shall describe and quantify the noise sources impacting the area and the measures required to meet the 65 CNEL exterior residential noise standard. The final precise grading plans shall incorporate the noise barriers (wall, berm or combination wall/berm) required by the analysis and the property owner/developer shall install these barriers. Based on the preliminary analysis, noise barriers of the heights shown in Exhibit 4.9-7 would reduce exterior noise levels at on-site residences to acceptable levels.
SC 9-2 Prior to approval of grading plans and/or prior to issuance of building permits, plans shall include a note indicating that noise-generating project construction activities north of SR-91 in the City of Yorba Linda shall not occur between the hours of 8:00 p.m. and 7:00 a.m. Monday through Saturday and at any time on Sunday or federal holidays, consistent with the City of Yorba Linda Noise Ordinance.
Interior noise levels from traffic at proposed uses within Development Areas 3, 4, 5, 6 and 7 would exceed the noise standards outlined in the City of Anaheim Noise Element. (Impact 4.9-3) PDF 9-1 and Mitigation Measures
MM 9-2 Prior to issuance of building permits for all buildings in the areas indicated in Exhibit 4.9-8, documentation shall be provided to the Planning Department, Building Division showing that the building meets the ventilation standards required by the Anaheim Building Code with windows closed. Alternatively, the property owner/developer shall show that based on the buildings location relative to the roadway it meets the appropriate interior noise standard with open windows.
MM 9-3 Prior to issuance of building permits, a detailed acoustical study using architectural plans shall be prepared by a qualified acoustical consultant and submitted to the Planning Department, Building Division for residential structures (including the residential portion of the fire station) in the areas indicated in Exhibit 4.9-9. This report shall describe and Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-57 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
quantify the noise sources impacting the building(s), the amount of outdoor-to-indoor noise reduction provided in the architectural plans, and any upgrades required to meet the City’s interior noise standards (45 CNEL for residences). The measures described in the report shall be incorporated into the architectural plans for the buildings and implemented with building construction.
The proposed water pump station in Development Area 5 has the potential to generate noise levels in exceedance of the City’s noise standard. (Impact 4.9-4) Mitigation Measures
MM 9-4 Prior to the issuance of building permits for the water pump station, a detailed noise assessment shall be prepared by a qualified acoustical consultant and submitted to the Planning Department for review and approval. The assessment shall utilize noise data provided by the manufacturer(s) of the equipment utilized at the station or noise measurements from substantially similar facilities to project noise levels at the residences in the vicinity of the water pump station. Compliance with the City’s Noise Ordinance shall be demonstrated and any measures required to meet the Noise Ordinance shall be described and incorporated into the plans for the water pump station.
Less than significant
The project would be consistent with relevant noiserelated goals and policies of the City of Anaheim and SCAG.
PDFs and MMs above apply No impact
Off-site Project Feature ImpactsThe following off-site project features have the potential to result in noise impacts to surrounding uses during construction: removal of the existing Oak Canyon Road east of Running Springs Drive (adjacent to existing residences), and improvements to Weir Canyon Road just west of the project boundaries (adjacent to existing residences).
SC 9-1 and SC 9-2 Less than significant
Caltrans-related Project Feature ImpactsThe following project features within Caltrans rightof-way have the potential to result in noise impacts to surrounding uses during construction: SR-241/ Weir Canyon Road interchange, Mountain Park Drive bridge overcrossing, improvements to Gypsum Canyon Road and the SR-91 ramps at Gypsum Canyon Road (adjacent to Featherly Regional Park campground). Noise levels SC 9-1 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-58 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
generated by pile driving (loudest construction activity) for the bridge overcrossing and SR-241/Weir Canyon Road interchange would exceed the 60 dBA limit in the Anaheim Noise Ordinance at the nearest occupied residences. SECTION 4.10 HAZARDS AND HAZARDOUS MATERIALS On-site groundwater testing detected a trace concentration of trichloroethene (TCE) in Gypsum Canyon near the location of the former rocket fuel test site and trace concentrations of gasoline and NDMA. Based on an Environmental Site Characterization Report prepared that included a human health risk assessment, implementation of the proposed project would not pose a threat to human health due to residual hazardous substances associated with historical operations.
Mitigation Measures
MM 10-1 Based on the Environmental Site Assessments performed for the project site (included in Appendix J), it is not anticipated that any underground storage tanks, septic systems, leach fields, or significant soil contamination will be encountered during construction. In the event these subsurface features or contaminated soil are encountered during site grading, work shall immediately cease in the area and the property owner/developer shall notify the Fire Department and Public Utilities, Environmental Services Division, and retain a qualified hazardous materials engineer to assess the impacts and prepare a response plan using risk-based cleanup standards applicable to residential land use. Upon approval of the response plan by the Fire Department or other agency, as applicable, the engineer shall obtain any required permits, oversee the removal of such features and/or conduct the response work to the satisfaction of the Fire Department or other agency, as applicable, until closure status is attained.
Less than significant
Relocation of the Questar Southern Trails Pipeline would be accomplished in accordance with appropriate design and safety standards, and the project does not include any uses that would involve the use, transport, disposal or emission of hazardous materials. Therefore, project residents would not be exposed to a significant hazard due to a foreseeable upset or accident condition.
MM 10-1 and Mitigation Measures
MM 10-2 Prior to approval of grading plans within an area in which the Southern Trails Pipeline is located or is proposed to be relocated within the grading plan boundaries, the property owner/developer shall obtain the approval of the Questar Pipeline Company. Written evidence of this approval shall be submitted to the Department of Public Works.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-59 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
MM 10-3 Prior to approval of any grading plans within a development area wherein the Southern Trails Pipeline exists or is proposed to be relocated, the property owner/developer shall submit a safety plan to the Fire Department. If there are any environmental concerns relating to developing adjacent to the pipeline or relocating it identified during subsequent reviews, the property owner/developer shall be responsible for financing/implementing any necessary mitigation measures. The safety plan shall be reviewed by the Questar Pipeline Company and approved by the Fire Department. Relocation of the pipeline shall occur at no cost to the City.
MM 10-4 Prior to issuance of building permits, the property owner/developer shall provide written evidence to the Public Utilities Department that the relocated Southern Trails Pipeline has been inspected and approved by the California Public Utilities Commission (CPUC).
The project would involve developing residential structures within and adjacent to high fire hazard areas; fire emanating from the project site or surrounding undeveloped areas could spread to developed areas of the project, threatening the health and safety of residents.
Project Design Features
PDF 10-1 Prior to the approval of the first tentative tract or parcel map, the property owner/developer shall enter into an agreement (Fire Protection Agreement) with the City of Anaheim. This agreement shall specify the property owner/developer’s pro-rata fair share funding of capital improvements necessary to establish adequate fire protection facilities and equipment to service the proposed development.
Less than significant
The property owner/developer shall be responsible for paying fees or otherwise providing for the design, construction and furnishing of the fire station, including all fire apparatus necessary to fully equip the fire station per the City’s specifications, to adequately serve the project. The property owner/developer shall also be responsible for dedicating a parcel for development of the fire station in the location specified in Exhibit 3-4 (Development Plan). The fire station facility shall be constructed and operational prior to the issuance of the first building permit for any development area east of the SR-241, or as otherwise required by the Fire Department in the Fire Protection Agreement.
PDF 10-2 Prior to submittal of the first tentative tract or parcel map or approval of the first grading plan, whichever occurs first, the property owner/developer shall submit a final Fire Master Plan (FMP) to the Fire Department for review and approval to ensure that fire protection for each Development Area is in accordance with Fire Department requirements. The final FMP Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-60 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
shall be in substantial conformance with the preliminary FMP (Appendix R of the EIR). A copy of the approved Fire Master Plan shall be submitted to the following City Departments: Planning, Police and Public Works.
PDF 10-3 The Mountain Park Specific Plan includes conceptual fuel modification strategies. Prior to submittal of each tentative tract or parcel map or grading plan, whichever occurs first, fuel modification plans shall be submitted to the Fire Department for review and approval. The fuel modification plan shall be prepared in accordance with the provisions of the California Fire Code in effect at the time of submittal of the tentative tract or parcel map and be based upon the criteria set forth in the City of Anaheim Fire Department Fuel Modification Plan Guidelines. Prior to final Certificate of Occupancy for the first building in each Development Area fuel modification zones shall be installed and inspected in substantial conformance with the approved plans to the satisfaction of the Fire Department.
The project would be consistent with relevant hazards and hazardous materials-related goals and policies of the City of Anaheim and SCAG.
PDFs and MMs above apply No impact
Off-site Project Feature ImpactsOff-site roadway and drainage improvements would not result in impacts related to hazards and hazardous materials.
MM 10-1 Less than significant
Caltrans-related Project Feature ImpactsProject features within Caltrans right-of-way would not result in impacts related to hazards and hazardous materials. The SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing would improve emergency access.
MM 10-1 Less than significant
SECTION 4.11 – POPULATION AND HOUSING The proposed project is consistent with the current demographic projections assumed in the City of Anaheim General Plan Update and would not induce substantial population growth in the area, either directly or indirectly.
No mitigation is required No impact
The project would be consistent with relevant population and housing-related goals and policies of the City of Anaheim and SCAG.
No mitigation is required No impact
Off-site and Caltrans-related project features would not generate or otherwise affect population and housing in the project area.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-61 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
SECTION 4.12 – PUBLIC SERVICES AND UTILITIES 4.12.1 Fire Protection Services The proposed project would convert currently undeveloped land in a hillside area to primarily residential land uses, and would increase the demand for fire protection services provided by the City of Anaheim. The proposed project involves the construction of a fire station and the potential impacts of this have been addressed in the analysis for the project presented in Section 4 of this EIR.
PDF 10-1, PDF 10-2, and PDF 10-3 in Section 4.10, Hazards and Hazardous Materials Existing Regulations and Standard Conditions SC 12-1 Prior to approval of each tentative tract or parcel map, the property owner/developer shall demonstrate that the map has been prepared in compliance with applicable provisions of the Anaheim Municipal Code and the Mountain Park Specific Plan relevant to fire prevention and suppression, subject to the review and approval of the Fire Department.
Less than significant
4.12.2 Police Services The introduction of a residential development on the project site and associated increase in population would increase the demand for police protection services provided by the City of Anaheim.
Existing Regulations and Standard Conditions
SC 12-2 Prior to issuance of the first building permit for each building with attached units, or prior to issuance of a building permit for each detached building, the property owner/developer shall pay the Police Facilities Capital Improvement Fee in effect at the time of issuance of the building permit; or, if the fee has not been adopted at the time of issuance of the first building permit, the payment of an amount estimated by the City of Anaheim Police Department to be the approximate fair share attributable to the project for police services.
Less than significant
4.12.3 Schools The development of 2,500 residential units on the project site would result in the generation of approximately 1,045 additional students in the Orange Unified School District. The students would attend existing schools serving the project site as well as an elementary school to be developed by the School District on the site provided for in the Specific Plan. The potential impacts associated with implementation of a school have been addressed throughout the analysis included in Section 4 of this EIR, including traffic, demand on public services and utilities, etc.
Project Design Features
PDF 12-1 Prior to the approval of the first tentative tract or parcel map in Development Area 3, the map shall provide for a minimum 10-acre site reserved for the purchase and construction of an elementary school by the Orange Unified School District. The property owner/developer shall provide the Planning Department with adequate proof that, in defining the boundaries of the school site area, the property owner/developer has complied with the provisions of the School Impact Mitigation Agreement (Appendix J) dated December 16, 2004 between Irvine Community Development Company and the Orange Unified School District, or any subsequent agreement entered into between the property owner/developer and the Orange Unified School District.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-62 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Existing Regulations and Standard Conditions
SC 12-3 The property owner/developer has entered into a School Impact Mitigation Agreement (Appendix K) with the Orange Unified School District in order to mitigate impacts to the school district associated with the Mountain Park development. This Mitigation Agreement fully mitigates any impacts to the school district in compliance with SB 50. Evidence that this agreement has been executed shall be submitted to the Planning Department prior to the issuance of the first building permit, or fees shall be paid in compliance with SB 50, prior to the issuance of each building permit.
4.12.4 Water On-site Project Feature Impacts Project Design FeaturesThe proposed project would generate an average day water demand for residential and nonresidential uses (school, fire station, and trail staging area) of approximately 1.38 million gallons per day (MGD) and irrigation water demand of 0.54 MGD, with a total demand of 1.92 MGD. The Water Supply Assessment prepared for the project concluded that there is sufficient available water supply for the proposed project for the next 20 years, including during drought conditions. The physical impacts of constructing facilities onsitehave been addressed in the analysis for the proposed project.
PDF 12-2 The Mountain Park Specific Plan includes a Water System Sub Area Master Plan (SAMP) (refer to Exhibit 3-11). Prior to approval of each tentative tract or parcel map, the property owner/developer shall submit water improvement plans prepared in conformance with the SAMP to the Public Utilities Department for review and approval. The property owner/developer shall extend and construct the necessary water lines, pump stations, and reservoirs to serve development phases prior to connecting to the City’s water system.
PDF 12-3 Irrigation systems within the Mountain Park Specific Plan area shall be controlled by automatic programmable irrigation controllers that utilize California Irrigation Management System (CIMS) Data to adjust water times and durations based on daily evapotranspiration) data. Prior to approval of landscape plans, the property owner/developer shall provide verification in the form of notes on the plans to the Public Utilities Department, Water Engineering Division, that the irrigation system is in conformance with the system identified in the SAMP. Public Utilities Department shall confirm that it is in conformance with the irrigation system identified in the SAMP. Community wide irrigation control shall be provided by a centralized irrigation control system designed to separately valve hydrozones based on plant water requirements, exposure and terrain characteristics. All systems shall utilize matched precipitation rate nozzles and emitters for precise water application, adjustable low angle nozzles to reduce overspray, check valves to reduce low head drainage, and master valves to minimize water loss in the event of a line break or valve malfunction.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-63 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Existing Regulations and Standard Conditions
SC 12-4 In accordance with the requirements of SB 221, prior to approval of tentative tract or parcel, the property owner/developer shall request that the Public Utilities Department provide water verification studies confirming that sufficient water supply is available for the proposed uses, in compliance with the approved Water Supply Assessment prepared for the project.
SC 12-5 Prior to final building and zoning inspections, the property owner/ developer shall demonstrate to the Public Utilities Department that water consumption reduction measures have been implemented as required by State law in accordance with the Water Utilities Rates, Rules and Regulations. Where appropriate, plans submitted for building permits shall include notes on plans that indicate the measures that will be utilized to reduce water consumption. Such measures where feasible and appropriate shall include, but are not limited to:
a. Low-flush toilets and urinals (Health and Safety Code Section 17921.3);
b. Maximum flow rate of all new showerheads, lavatory
faucets, and sink faucets (Title 20, California Code of Regulations Section 1604[f]); c. Appliances certified by manufacturer to comply with
regulations established by applicable efficiency standards (Title 20, California Code of Regulations Section 1606[b]); d. Public lavatories equipped with self-closing faucets that limit the flow of hot water (Government Code Section 7800);
e. Hot water pipes insulated to reduce water used before hot water reaches equipment or fixtures (Title 24, California Code of Regulations Section 2-5352[i] and [j]); f. Conservation reminders posted in rooms and restrooms; g. Thermostatically controlled mixing valve for bath/shower; h. Implementation of efficient irrigation systems to minimize runoff and evaporation.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-64 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Mitigation Measures
MM 12-1 Prior to the issuance of the first building permit, the property owner/ developer shall pay the Public Utilities Department a proportionate share of a water supply source to meet the projected increases in water demands in accordance with Rule 15.C, Section 3, of the Public Utilities Rates, Rules, and Regulations. Although the Water Supply Assessment (Appendix M of the Draft EIR No. 331) concludes that there is adequate capacity to serve the proposed project, an additional water supply source will ensure that there is no loss of redundancy and/or reliability to the city water supply system.
MM 12-3 Prior to approval of the first utility or infrastructure plan serving each development area with impacts to public streets, the property owner/developer shall submit a utility layout and trenching plan to the Department of Public Works for all existing public streets. Trench replacement shall, at a minimum, conform to Public Works Standard Detail No. 132. Joint trenches shall be used whenever practicable. The asphalt pavement restoration widths shall be approved by the Department of Public Works based on anticipated impact of construction and layout of trenches within the public right-of-way.
Off-site Project Feature Impacts
The proposed project would involve the construction of a new water line in Santa Ana Canyon Road. Additionally, a portion of an existing City pipeline along this roadway would need to be upsized to serve the project. There is sufficient capacity in water lines west of the project site to serve the proposed project. Off-site water facility connections would require construction within existing street right-of-way which would be considered a temporary impact.
Mitigation Measure
MM 12-2 Prior to approval of street improvement plans, the property owner/ developer shall submit Traffic Management Plans to the City of Anaheim Department of Public Works and Yorba Linda Public Works Department for proposed street improvements within the respective jurisdictions for review and approval. The Traffic Management Plans shall describe traffic control measures that shall be implemented to maintain traffic flow in all directions where utility improvements are being implemented in existing roadways. Said traffic management measures shall be implemented ongoing during road construction.
Less than significant
4.12.5 Sanitary Sewer On-site Project Feature Impacts The proposed project would generate an average daily wastewater flow of approximately 0.99 million gallons per day (MGD) assuming the City of Anaheim generation factors, and 0.91 MGD assuming the Orange County Sanitation District Project Design Features
PDF 12-4 The Public Facilities Plan provided in the Mountain Park Specific Plan includes a Project Sewer Study that identifies the sanitary sewer facilities to be constructed with the project. The project sanitary sewer system is shown on Exhibits 3-12. The property owner/developer shall conduct sewer monitoring at two similar developments within the City to collect 14 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-65 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
(OCSD) generation factors. The on-site collection systems would be constructed to accommodate the anticipated sanitary sewer wastewater flow. The physical impacts of constructing facilities on-site have been addressed in the analysis for the proposed project. days of data during dry weather conditions to verify the sewage generation rates. The property owner/developer shall then prepare a report based on the City approved sewer modeling software to verify that the sewer sizes conform to those proposed in the project sewer study. Prior to approval of the sewer improvement plans, the property owner/developer shall submit plans to the Department of Public Works, demonstrating that the sanitary sewer system is in conformance with the alternatives described in the Project Sewer Study included in the Mountain Park Specific Plan. The property owner/developer shall extend and construct the necessary facilities, including sanitary sewer lines to serve the project development phases.
Existing Regulations and Standard Conditions
SC 12-6 Prior to issuance of each building permit, the property owner/developer shall pay fees for sewer service to the City of Anaheim and Orange County Sanitation District.
SC 12-7 Prior to approval of final tract or parcel maps, the property owner/ developer shall pay the appropriate sewer connection fee to the City of Anaheim, as established by City Council Resolution.
Mitigation Measures
MM 12-5 Prior to approval of the first final tract or parcel map in Development Areas 3 and 7, the property owner/developer shall submit sewer improvement plans for the West Basin sewer alignment from the alternatives presented in the Project Sewer Study. The Department of Public Works shall select the West Basin sewer alignment based upon the ability of the property owner/developer to obtain off-site easements, and any design limitations related to the SR-241 over-crossing and/or other construction related issues.
MM 12-6 Prior to the first final tract or parcel map in Development Areas 1, 2, 4, 5, and 6, the property owner/developer shall submit sewer improvement plans for the East Basin sewer alignment from the alternative presented in the Project Sewer Study. The Department of Public Works shall select the East Basin sewer alignment based upon the status of the Santa Ana River Interceptor (SARI) relocation project.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-66 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Off-site Project Feature ImpactsFor the west basin off-site sewer connection option, approximately 200 feet of pipeline in Running Springs Drive would require upsizing to a 10-inch pipe diameter. All other existing sanitary sewer pipelines in the Summit Community have the available capacity to receive west basin (Development Areas 3 and 7) wastewater flows from the project site. Off-site sanitary sewer facility connections would require construction within existing street right-of-way which would be considered a temporary impact.
MM 12-2, MM 12-5, and MM 12-6 Less than significant
The proposed Santa Ana River Interceptor (SARI) line connection for the east basin sanitary sewer facilities would traverse privately-owned property including a commercial parking lot within SAVI Ranch in the City of Yorba Linda. Off-site sewer facility connections would require construction within existing street right-of-way which would be a temporary impact. The project applicant would obtain appropriate permits and authorization from affected property owners and jurisdictions.
MM 12-2 and Mitigation Measures
MM 12-4 Prior to approval of the first final tract or parcel map in Development Areas 1, 2, 4 or 5, the property owner/developer shall obtain approvals, permits, and/or easement rights of way from private property owners and affected jurisdictions (City of Yorba Linda, Caltrans, Orange County Sanitation District) for off-site sanitary sewer line connections. Evidence that these approvals and permits have been obtained shall be submitted to the Department of Public Works.
Less than significant
4.12.4 Electricity On-site Project Feature Impacts
The proposed project would generate an increased demand for electricity provided by the Anaheim Public Utilities Department and would require the construction of new electric facilities within the project site. The physical impacts of constructing facilities have been addressed in analysis for the proposed project.
Project Design Features
PDF 12-5 The Public Facilities Plan provided in the Mountain Park Specific Plan identifies the electrical facilities to be constructed with the project. The project electric system is shown on Exhibit 3-13. Prior to approval of permits for improvement plans, the property owner/developer shall submit electric system plans to the Public Utilities Department, Electrical Engineering Division, demonstrating that the electric system is in conformance with the Public Facilities Plan included in the Mountain Park Specific Plan. The property owner/developer shall extend and construct the necessary facilities, including electric lines identified in Exhibit 3-13, to serve development phases.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-67 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Existing Regulations and Standard Conditions
SC 12-8 Prior to approval of final tract or parcel maps, the property owner/developer shall install, bond for, or otherwise secure on-site electrical facilities in accordance with the City of Anaheim Public Utility Electric Rates, Rules and Regulations, and provide written evidence of this fact to the Public Utilities Department.
SC 12-9 The proposed project shall comply with all State Energy Insulation Standards and City of Anaheim codes in effect at the time of application for building permits. (Commonly referred to as Title 24, these standards are updated periodically to allow consideration and possible incorporation of new energy efficiency technologies and methods. Title 24 covers the use of energy efficient building standards, including ventilation, insulation and construction and the use of energy saving appliances, conditioning systems, water heating, and lighting.) Plans submitted for building permits shall include written notes demonstrating compliance with energy standards and shall be reviewed and approved by the Public Utilities Department prior to issuance of building permits.
SC 12-10 Prior to issuance of the first building permit for each tentative tract or parcel map, the property owner/developer shall pay fees in accordance with Anaheim’s Electric Rates, Rules and Regulations for electrical residential and commercial services for specific uses within the development site.
SC 12-11 Prior to issuance of each building permit, the property owner/developer shall incorporate the following energy saving practices into building plans. The property owner/developer shall implement, to the extent feasible, these energy saving practices, in compliance with Title 10 of the Anaheim Municipal Code, prior to each final building and zoning inspection:: a. Consultation with the Public Utilities Department energy conservation experts for assistance with energy conservation design features. b. Use of electric motors designed to conserve energy. c. Use of special lighting fixtures such as motion sensing light switch devices and compact fluorescent fixtures in place of incandescent lights. d. Use of T8 lamps and electronic ballasts. Metal halide or highpressure sodium for outdoor lighting.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-68 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Mitigation Measures
MM 12-8 Prior to approval of grading plans, final tract or parcel maps, or street improvement plans, whichever occurs first, for Development Areas 3 and 7, the property owner/developer shall submit preliminary electric system plans to the Public Utilities Department for review and approval. The property owner/developer shall request that the Public Utilities Department provide engineering standards and plans for the installation of electrical and communication conduit and substructures systems. The property owner/developer shall also submit an electrical and communications conduit phasing plan to the Public Utilities Department to assist in the planning of additional electrical distribution systems from the Park Substation to, and within, Development Areas 3 and 7.
MM 12-9 Prior to approval of grading plans, final tract or parcel maps, or street improvement plans, whichever occurs first, for development areas east of SR-241, the property owner/developer shall submit preliminary electric system plans to the Public Utilities Department for review and approval. The property owner/developer shall request that the Public Utilities Department provide engineering standards and plans for the installation of electrical and communication conduit and substructures systems from the Park Substation to, and within, development areas east of SR-241.
MM 12-10 Prior to issuance of the first building permit for each tentative tract or parcel map, the property owner/developer shall pay fees and provide the necessary infrastructure for the installation of the on-site and off-site electrical and communication systems to serve said tract, designed and phased to provide electrical service for the development areas within the project site. This shall include line extensions from the Park Substation to the development site. The applicable improvements shall be installed prior to the first final building and zoning inspection for the tract or parcel map.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-69 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
Off-site Project Feature impacts
New electric facilities would be constructed off-site to connect the proposed development areas to existing facilities, including duct bank routing and installation of new electric and telecommunication circuits in Santa Ana Canyon Road. Additionally, 1,600 feet of the existing SCE electric line that serves the quarry site would be undergrounded. Off-site electric facilities would require construction within existing street right-of-way which would be considered a temporary impact.
Mitigation Measures
MM 12-7 Prior to approval of street improvement plans, the property owner/developer shall submit Traffic Management Plans to the Department of Public Works describing traffic control measures that shall be implemented to maintain traffic flow in all directions where utility improvements are being implemented in existing roadways. The Traffic Management Plans shall be reviewed and approved by the Department of Public Works, Traffic Engineering Division.
Less than significant
4.12.5 Natural Gas On-site Project Feature Impacts
The proposed project would generate an increased demand for natural gas service provided by the Southern California Gas Company and would require the construction of new natural gas facilities within the project site. The physical impacts of constructing facilities have been addressed in analysis for the proposed project.
Project Design Features
PDF 12-6 The Public Facilities Plan provided in the Mountain Park Specific Plan identifies the natural gas facilities to be constructed with the project. The project natural gas system is shown on Exhibit 3-13. Prior to approval of grading plans, final tract or parcel maps, or street improvement plans, whichever occurs first, the property owner/developer shall submit plans to the Public Utilities Department demonstrating that the natural gas system is in conformance with the Public Facilities Plan included in the Mountain Park Specific Plan. The property owner/developer shall extend and construct the necessary facilities, including natural gas lines to serve development phases.
Existing Regulations and Standard Conditions
SC 12-12 Prior to approval of final tract or parcel maps, the property owner/developer shall install, bond for, or otherwise secure on-site natural gas facilities in coordination with Southern California Gas Company (SCG). Written evidence of this shall be provided to the Public Utilities Department.
Less than significant
Off-site Project Feature impacts
New natural gas facilities would be constructed offsite to connect the proposed development areas to existing facilities. Off-site natural gas facilities would require construction within existing street right-of-way which would be considered a temporary impact.
MM 12-7 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-70 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
4.12.6 Telephone Service On-site Project Feature Impacts The proposed project would generate an increased demand for telephone service provided by SBC and would require the construction of new telephone facilities within the project site. The physical impacts of constructing on-site facilities have been addressed in the analysis for the proposed project.
No mitigation is required Less than significant
Off-site Project Feature impacts
New telephone facilities would be constructed offsite to connect the proposed development areas to existing facilities. Off-site telephone facilities would require construction within existing street right-ofway which would be considered a temporary impact.
MM 12-7 Less than significant
4.12.7 Cable Television Service/Reception On-site Project Feature Impacts The proposed project would generate an increased demand for cable television service and would require the construction of new natural gas facilities within the project site. The physical impacts of constructing on-site facilities have been addressed in analysis for the proposed project.
No mitigation is required Less than significant
Off-site Project Feature impacts
New cable facilities would be constructed off-site to connect the proposed development areas to existing facilities. Off-site cable facilities would require construction within existing street right-ofway which would be considered a temporary impact.
MM12-7 Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-71 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
4.12.8 – Solid Waste The proposed project is estimated to generate 4,287.8 tons of solid waste per year. There is adequate capacity in the Orange County landfill system to accommodate the solid waste generated by the project.
Existing Regulations and Standard Conditions
SC 12-13 Prior to approval of any site plans, tentative tract or parcel maps, the property owner/developer shall submit a Solid Waste Management Plan with recycling capabilities to the Department of Public Works, Streets and Sanitation Division for review and approval. Refuse collection and disposal for the proposed project shall comply with AB 939, the County of Orange Integrated Waste Management Plan, and the City of Anaheim Integrated Waste Management Plan.
Less than significant
4.12.9 Library Services With its increase in population, the proposed project would increase the demand on the City’s libraries.
Existing Regulations and Standard Conditions
SC 12-14 Pursuant to Resolution No. 89R-235 adopting the Public Library Facilities Plan for the East Santa Ana Canyon area, as may hereinafter be amended, the property owner/developer shall pay required fees for the construction of library facilities in the East Hills Planned Community. Fees shall be paid as a condition of approval of any final tract or parcel map, or prior to issuance of a building permit where no subdivision is involved. The Planning Department, Building Division shall verify payment of fees.
Less than significant
SECTION 4.13 RECREATION The proposed project would increase the population in the City of Anaheim and would increase the demand for park and recreational facilities. The potential impacts associated with the proposed public community park in Development Area 3 have been addressed in this EIR.
Project Design Features
PDF 13-1 The Mountain Park Specific Plan includes the implementation of the public Gypsum Canyon Creek Regional Riding and Hiking Trail (refer to Exhibit 3-8, Open Space, Trail and Bikeway Plan). Prior to approval of each tentative tract or parcel map that the trail is located within, the final alignment and final design for the Gypsum Canyon Creek Regional Riding and Hiking Trail shall be reviewed and approved by the Community Services Department and County of Orange Harbors, Beaches and Parks Department and shown on the tract or parcel map. Dedication of trail easements to the County of Orange shall occur concurrently with recordation of final tract or parcel maps. Trail improvements shall be completed prior to final building and zoning inspections for the first building within said tracts.
Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-72 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
PDF 13-2 The Mountain Park Specific Plan includes the implementation of Class II bikeways (on-street, striped) along the following roadways: proposed Mountain Park Drive; extension of Weir Canyon Road within the project site; Gypsum Canyon Road from off-site Featherly Regional Park to onsite Mountain Park Drive; and Santa Ana Canyon Road within the project site (refer to Exhibit 3-8, Open Space, Trail and Bikeway Plan). Prior to approval of each tentative tract or parcel map that includes these bikeways; the property owner/developer shall include provisions for these bikeways on the tract or parcel map. The final alignment and final design of each bikeway shall be shown on the street improvement plans and shall be reviewed and approved by the Department of Public Works.
Existing Standard Conditions and Regulations
SC 13-1 The Mountain Park Specific Plan includes an approximate 15-acre improved park in Development Area 3 (refer to Exhibit 3-4) to fulfill the City’s park dedication requirement. Prior to, or concurrent with, approval of final tract or parcel maps in Development Area 3, the property owner/developer shall demonstrate compliance with this park dedication requirement to the Planning Department.
SECTION 4.14 CULTURAL RESOURCES On-site and off-site grading and excavation activities could impact unknown archaeological resources. (Impact 4.14-1) Mitigation Measures
MM 14-1 Prior to the approval of a grading plan or issuance of a building permit, whichever occurs first, the property owner/developer shall retain a County-certified archaeologist (project archaeologist) and submit written confirmation of this to the Department of Public Works. The project archaeologist shall observe grading activities and recover, catalogue, analyze, and report archaeological resources as necessary in the previously undeveloped portions of the development area. The project archaeologist shall be present at the pre-grade conference. The project archaeologist shall submit to the Planning Department, and Department of Public Works, Development Service Division, a written plan with procedures for archaeological resource monitoring. For work within Caltrans right-of-way the plan shall be submitted for review by Caltrans Cultural Resources staff. This plan shall include procedures for temporarily halting or redirecting work to permit the sampling, identification, and evaluation of the resources as appropriate. If the archaeological resources are found to be significant, the project archaeologist shall determine appropriate actions—in cooperation with the City of Anaheim or Caltrans, if within Caltrans right-of-way—for Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-73 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
exploration and/or data recovery. The project archaeologists shall prepare any excavated material to the point of identification. Following the completion of grading, the archaeologists shall prepare a report detailing the results of the monitoring program to be presented to the City of Anaheim Planning Department. The report shall follow guidelines of the California Office of Historic Preservation (1990). Excavated finds shall be offered for curatorial purposes to a qualified scientific institution.
MM 14-2 If human remains are encountered during the conduct of grounddisturbing activities, State Health and Safety Code Section 7050.5 states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition of the materials pursuant to Public Resources Code Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are determined to be prehistoric, the Coroner would notify the Native American Heritage Commission (NAHC). The NAHC would determine and notify a Most Likely Descendent (MLD). The MLD may inspect the site of the discovery with the permission of the property owner/developer or his/her authorized representative. The descendent must complete the inspection within 24 hours of notification by the NAHC. The MLD may recommend scientific removal and nondestructive analysis of human remains and items associated with Native American burials.
On-site and off-site grading and excavation activities could impact unknown paleontological resources. (Impact 4.14-2) MM 14-3 Prior to issuance of the first grading permit, the property owner/developer shall submit a monitoring plan, prepared by an Orange County certified paleontologist to the Department of Public Works, Development Services Division that ensures that the following actions are implemented: a. The area west of Gypsum Canyon is comprised almost entirely of the Topanga Formation (high paleontological sensitivity) and contains all of the heretofore recognized surface occurrences of fossils on the project site. The north-central portion of the project site is comprised chiefly of the interbedded undifferentiated Vaqueros and Sespe Formations (moderate to high paleontological sensitivity) and smaller elements of the Sespe, Santiago, and Topanga Formations (all high paleontological sensitivity). Paleontological monitoring in the western and north-central areas of the project site shall be conducted on a full-time basis and shall be identified as such in the monitoring plan. It shall be the responsibility of the project paleontologist to show, to the satisfaction of the City, the recommended limits of full-time monitoring on the tentative tract or parcel map level grading plans, Less than significant
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-74 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
when available. Because of the potential for identifying microfossils or small fragments of macrofossils, periodic screening of sediments from cuts in these formations shall be carried out by the project paleontologist. Such material may be removed in bulk and screened off-site to minimize interference with grading operations. b. The Holz Shale, Schulz Ranch Member of the Williams Formation, the Silverado Formation, Santiago Formation, and the Sespe Formation, exposed primary east of Gypsum Canyon, shall be monitored as determined necessary by the project paleontologist during grading operations. Recommended hours for monitoring activities shall be established by the project paleontologist and shall be outlined in the monitoring plan. It shall be the responsibility of the project paleontologist to demonstrate, to the satisfaction of the City, the appropriate level of monitoring necessary based on the tentative tract or parcel map level grading plans, when available. Because of the potential for identifying microfossils or small fragments of macrofossils, periodic screening of sands from cuts in these units shall be done by the project paleontologist monitor. Such material may be removed in bulk and screened offsite to minimize interference with grading operations. c. Any paleontological work at the site shall be conducted under the direction of a County of Orange Certified paleontologist (project paleontologist). d. If a fossil discovery occurs during grading operations when the project paleontologist is not present, grading shall be diverted around the area until the monitor can survey the area, and/or Caltrans Cultural Resources staff can inspect the site, if the resources are found within Caltrans right-of-way. e. Any fossils recovered during the development, along with their contextual stratigraphic data, shall be donated to the County of Orange, or other appropriate institution with an educational and research interest in the materials. A final report detailing findings and disposition of specimens shall be prepared by the project paleontologist and submitted to the City of Anaheim Planning Department upon completion of grading.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 1-1 (Continued)
SUMMARY OF ENVIRONMENTAL IMPACTS
AND MITIGATION PROGRAM
R:\Projects\TIC\J020\Draft EIR\1 Exec Summary Table-032305.doc 1-75 Executive Summary Environmental Impact Analysis Mitigation Program
Level of Significance
After Mitigation
On-site and off-site grading and excavation activities could impact previously unidentified human remains, including those interred outside of formal cemeteries. (Impact 4.14-3) MMs 14-1 and 14-2 Less than significant
The project would be consistent with relevant cultural resource-related goals and policies.
No mitigation is required No impact
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-1 Introduction SECTION 2
INTRODUCTION
2.1 PURPOSE OF THE DRAFT PROGRAM EIR
This Program EIR has been prepared to evaluate the potential environmental impacts associated with the construction and implementation of the Mountain Park Specific Plan Amendment project. This EIR is a Program EIR in accordance with the California Environmental Quality Act (CEQA) Guidelines §15168. The Program EIR provides a comprehensive evaluation of the reasonable anticipated scope of the project. It is intended to serve as an informational document for public agency decision makers and the general public regarding the objectives and components of the proposed project, and any potentially significant environmental impacts that may be associated with the planning, construction, and operation of the project, as well as to identify appropriate feasible mitigation measures and alternatives that may be adopted to reduce or eliminate these significant impacts.
The City of Anaheim is the lead agency under CEQA, and is responsible for preparing the Mountain Park Specific Plan Amendment Program EIR (State Clearinghouse No. 2004071098).
This Program EIR has been prepared in conformance with the CEQA (California Public Resources Code §21000 et seq.) and California CEQA Guidelines (Title 14, California Code of Regulations, Chapter 3, §15000 et seq.). The City, as the lead agency, will review and consider this Program EIR in its decision to approve, revise, or deny the proposed project.
This Program EIR is further intended to serve as the primary environmental document for all future entitlements associated with the proposed project, including all discretionary approvals requested or required to implement the project. Subsequent actions will be reviewed as required by Public Resources Code §21166, and state CEQA Guidelines §15162. CEQA Guidelines §15168 states that “Subsequent activities in the program must be examined in the light of the program EIR to determine whether an additional environmental document must be prepared.
(1) If a later activity would have effects that were not examined in the program EIR, a new Initial Study would need to be prepared leading to either an EIR or a Negative Declaration.
(2) If the agency finds that pursuant to Section 15162, no new effects could occur or no new mitigation measures would be required, the agency can approve the activity as being within the scope of the project covered by the program EIR, and no new environmental document would be required.
(3) An agency shall incorporate feasible mitigation measures and alternatives developed in the program EIR into subsequent actions in the program. (4) Where the subsequent activities involve site-specific operations, the agency should use a written checklist or similar device to document the evaluation of the site and the activity to determine whether the environmental effects of the operation were covered in the program EIR.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-2 Introduction (5) A program EIR will be most helpful in dealing with subsequent activities if it deals with the effects of the program as specifically and comprehensively as possible.
With a good and detailed analysis of the program, many subsequent activities could be found to be within the scope of the project described in the program EIR, and no further environmental documents would be required.” With respect to public review of these “subsequent activities,” CEQA Guidelines §15168(e) provides “When a law other than CEQA requires public notice when the agency later proposes to carry out or approve an activity within the program and to rely on the program EIR for CEQA compliance, the notice for the activity shall include a statement that: (1) This activity is within the scope of the program approved earlier, and (2) The program EIR adequately describes the activity for the purposes of CEQA.”
The City of Anaheim, which has the principal responsibility for processing and approving the project, and other public agencies (i.e., responsible and trustee agencies) that may use this Program EIR in their decision making or permitting processes, will consider the information in this Program EIR along with other information that may be presented during the CEQA process.
In addition, this Program EIR is the primary reference document in the formulation and implementation of a mitigation monitoring and reporting program for the proposed project.
In accordance with CEQA, public agencies are required to make findings for each environmental impact of the project identified in the Program EIR. If the lead agency and responsible agencies decide that the benefits of the proposed project outweigh any identified unmitigated significant environmental effects, they will be required to adopt a statement of overriding considerations supporting their actions.
The actions involved in the implementation of the proposed project are described in Section 3.8, Intended Use of the EIR. Other agencies that may have discretionary approval over the project, or components thereof, including responsible and trustee agencies, are also described in Section 3.8.
2.2 PROJECT BACKGROUND
The City of Anaheim approved a Specific Plan for the Mountain Park project site (SP 90-4) and certified EIR No. 302 in 1991. SP 90-4 allowed for the development of 7,966 residential units, commercial uses, interim sand and gravel mineral extraction, schools, parks, and open space.
A copy of Mountain Park Specific Plan (SP 90-4) and certified EIR No. 302 are on file in the City of Anaheim Planning Department. The development plan approved for SP 90-4 is shown in Exhibit 5-2, in Section 5, Alternatives. The approved development plan was never implemented by the project applicant.
Since approval of SP 90-4 in 1991, there have been two notable actions taken to provide for the preservation of open space areas on the property. In 1996, the County of Orange Central & Coastal Subregion Natural Communities Conservation Plan & Habitat Conservation Plan (NCCP/HCP) was adopted and subsequently entered into by the City of Anaheim, The Irvine Company (landowner), the California Department of Fish and Game (CDFG), and the U.S. Fish and Wildlife Service (USFWS) as well as other local jurisdictions and landowners. The NCCP/HCP provides for the protection of natural communities and species while allowing a reasonable amount of economic development (refer to discussion provided in Section 4.6, Biological Resources). Development within the NCCP/HCP Reserve area is restricted, and approximately 940 acres in the southern portion of the project site are within the Reserve. The Reserve boundary is consistent with the grading areas identified for SP 90-4; the Reserve is not within previously approved development areas. In November 2001, The Irvine Company Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-3 Introduction pledged over 11,000 acres, including 913 acres within the project site (Anaheim Conservation Easement [ACE]) to The Nature Conservancy (TNC). The TNC ACE was in addition to the NCCP/HCP Reserve. Development rights within the TNC ACE have been extinguished. The NCCP/HCP Reserve and TNC ACE open space areas are described in Section 3.3.2, Project Development Components. It should be noted that the TNC ACE is within areas previously identified for development in SP 90-4. In summary, the southern, northwest, and northeast portions of the project site are dedicated to open space through these programs, limiting the area within the project site available for development. This issue is described in more detail and a map depicting the conservation areas can be found in Section 3, Project Description (refer to Exhibit 3-8, Open Space, Trail and Bikeway Plan).
In May 2004, the City of Anaheim approved a General Plan Update (GPA No. 2004-00419) which, among other actions, amended the land uses in the Mountain Park Specific Plan area to decrease the intensity of development in the Mountain Park Specific Plan area from 7,966 residential units to 2,500 units; eliminated proposed commercial and mineral extraction uses, four school sites, a City maintenance yard; and reduced the number of park sites. Along with the General Plan Update, the City of Anaheim also approved an update to Title 18 (Zoning) of the Anaheim Municipal Code, and termination of Development Agreement No. 91-01 between the City of Anaheim and The Irvine Company relating to the Mountain Park Specific Plan. The actions related to the Mountain Park Specific Plan area were coordinated with The Irvine Company. The new zoning and general plan designations are described in more detail in Section 3, Project Description.
It should be noted that SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing were assumed in the previous environmental documentation prepared for SR-241 (Eastern Transportation Corridor Final Environmental Impact Statement prepared in September 1994) and the Mountain Park Specific Plan (SP 90-4) Final EIR No. 302. This EIR addresses the impacts associated with construction of these facilities as currently designed.
The proposed project consists of an Amendment to the existing Mountain Park Specific Plan to conform to current open space dedication boundaries, the adopted NCCP/HCP, the donated TNC ACE, and the recently adopted General Plan designations for the site. The Specific Plan Amendment is described in Section 3, Project Description.
2.3 EIR FOCUS AND EFFECTS FOUND NOT TO BE SIGNIFICANT
2.3.1 SCOPING PROCESS
In compliance with the CEQA Guidelines, the City of Anaheim has taken steps to maximize opportunities for the public and other public agencies to participate in the environmental review process. The City conducted an initial study of the proposed project and determined that an EIR was required to evaluate the potentially significant environmental effects of the proposed project and related actions. The City distributed the Initial Study along with a notice of preparation (NOP) of an EIR to responsible and interested agencies, including surrounding cities, and provided a notice of its availability to adjacent property owners and other interested parties, to solicit comments and inform the public of the proposed project. The NOP/Initial Study was distributed on July 19, 2004 for a 30-day review period as required by CEQA. A copy of the NOP/Initial Study and responses received are included in Appendix A.
The City held two public scoping meetings (on August 11 and September 8, 2004) to provide the public with a forum to identify any additional environmental issues to be evaluated in the EIR which were not previously identified in the Initial Study. Attendees were provided an opportunity to identify verbally, or in writing, the issues they felt should be addressed in this EIR. Following Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-4 Introduction is a summary of the issues raised at the two scoping meetings; the section of the EIR where each issue is addressed is provided in parentheses.
x The EIR should address increased traffic on existing adjacent roadways including Weir Canyon Road, Santa Ana Canyon Road, SR-91, and SR-241. (Section 4.7, Traffic and Circulation)
x The EIR should analyze the circulation impacts to local roadways in surrounding communities. (Section 4.7, Traffic and Circulation)
x The EIR should analyze the traffic impacts to the City of Yorba Linda. (Section 4.7, Traffic and Circulation)
x The proposed project involves a gated community. Non-project residents would not be able to use the proposed routes through the Mountain Park project site, but project residents would increase traffic on existing roadways. A non-gated community should be considered. (Section 5, Alternatives)
x Santa Ana Canyon Road should be improved and widened to provide access to and past the proposed project site. (Section 4.7, Traffic and Circulation) x Traffic on SR-241 may affect the traffic flow of the proposed Weir Canyon off-ramp. (Section 4.7, Traffic and Circulation)
x The EIR should address potential air quality impacts to nearby residents as a result of the proposed SR-241/Weir Canyon interchange. (Section 4.8, Air Quality) x Alternative circulation designs should be considered such as the extension of Oak Canyon Road into the project site, and extension of Weir Canyon Road east from SR-241 to Development Area 1. (Section 5, Alternatives) x The EIR should include analysis of potential alternatives to the proposed project, including an alternative that includes commercial uses to lessen the impacts (traffic/ parking) to existing commercial centers in surrounding neighborhoods. (Section 5, Alternatives)
x The EIR should use accurate generation factors to adequately address impacts to existing schools within the Orange Unified School District (OUSD). There were concerns raised that the student generation factors used by Davis Demographics are outdated. (Section 4.12, Public Services and Utilities) x The EIR should analyze long-term impacts to schools associated with the project and the need for additional schools, including middle and high schools. (Section 12, Public Services and Utilities)
x The EIR should analyze the potential for the development of a school east of SR-241. (Section 5, Alternatives)
x The EIR should address the timeframe of construction of the school related to the Mountain Park development. The school should be provided prior to occupancy of residential uses. (Section 3, Project Description; and Section 4.12, Public Services and Utilities)
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-5 Introduction x The EIR should address impacts of the proposed community park in Development Area 3 on surrounding residences, including lighting and noise impacts. (Section 4.2, Landform and Aesthetics; Section 4.9, Noise; and Section 4.13, Recreation) x The EIR should address accessibility to the proposed trail system along Gypsum Creek and the trail staging area by non-Mountain Park residents. (Section 3, Project Description)
x The EIR should address wildlife movement at the proposed project site, specifically involving the Coal Canyon Biological Corridor. (Section 4.6, Biological Resources) x The EIR should analyze the impacts associated with proposed grading and topography changes, including aesthetics and noise impacts. A concern was raised that noise levels would increase since existing landforms provide a “noise buffer”. (Section 4.2, Aesthetics, and Section 4.9, Noise)
x The EIR should analyze the potential impacts from earthquake. (Section 4.3, Geology and Soils)
x The EIR should address emergency access for the proposed project site. (Section 4.10, Hazards and Hazardous Materials, and Section 4.12, Public Services and Utilities) x The EIR should address potential hazardous materials impacts to residential uses from previous uses, including the existing quarry. (Section 4.10, Hazards and Hazardous Materials)
The initial study responses, NOP comments, and the comments provided during the public scoping meeting were used to establish the scope of the issues addressed in this EIR. The following environmental issues were identified by the City through preparation of the Initial Study and through the NOP and scoping process as being potential impacts associated with the implementation of the Mountain Park Specific Plan Amendment project to be addressed in this EIR:
x Land Use and Planning
x Aesthetics and Visual Resources
x Geology and Soils
x Hydrology and Water Quality
x Biological Resources
x Transportation/Circulation
x Air Quality
x Noise
x Hazardous Materials
x Population and Housing
x Public Services
x Utilities and Service Systems
x Recreation
x Cultural Resources
2.3.2 EFFECTS FOUND NOT TO BE SIGNIFICANT
The Initial Study determined that an EIR was required to evaluate the potentially significant environmental effects of the proposed project. Following is an identification of the impact Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-6 Introduction categories that were checked “no impact” or “less than significant impact” on the Initial Study checklist and the reasons why these issues were not considered potentially significant or applicable to the project, and therefore are not addressed further in this EIR. x Agricultural Resources – Based on the 2002 California Important Farmland Map, farmland designations within the Mountain Park study area include Other Land and Urban and Built-up Land. There are no areas designated as Prime Farmland, Farmland of Statewide Importance, Unique Farmland, or Farmland of Local Importance.
Approximately 1,790 acres of the Mountain Park study area were previously subject to California Land Conservation Act (Williamson Act) contracts; however, these contracts expired between 1981 and 1999. No impacts to agricultural resources would result from project implementation.
x Air Quality (Gaseous Odors) – Future residential development, as proposed, would involve minor, odor-generating activities, such as backyard barbeque smoke, lawn mower exhaust, application of exterior paints, etc. These types and concentrations of odors are typical of residential communities and are not considered significant.
Additionally, gaseous odors that occur on-site as a result of quarry operations would be eliminated upon closure of the quarry following implementation of the approved Reclamation Plan.
x Historic Resources – A cultural resources assessment of the Mountain Park study area was conducted by LSA Associates, Inc. (LSA) (2004) and is provided in Appendix P.
There are no sites within the study area listed on the National Register of Historic Places, the California Register of Historic Resources, or the City of Anaheim Qualified Historic Structures list. McDonnell Douglas leased property on the project site and operated a rocket fuel test site between 1966 and 1979. There was one structure from this facility remaining on site and it was evaluated to determine its significance and integrity, and whether it was eligible for listing on the National Register of Historic Places or the California Register of Historic Resources. Based on the historical assessment, it was determined not to be a historical structure. This structure was demolished in November 2003.
x Soils Incapable of Supporting Septic Tanks – The proposed project would not involve the use of septic tanks or alternative waste water disposal systems. The project would incorporate the use of City sewer lines and wastewater disposal systems. Therefore, no impact would occur.
x Use, Transport, Disposal, and/or Emission of Hazardous Materials – The proposed project consists of residential and open space uses and would not create a need to transport, use, or dispose of hazardous materials. Additionally, the proposed project would not include any uses that would generate hazardous emissions or involve handling hazardous materials, substances, or waste within one-quarter mile of a school site. Section 4.10, Hazards and Hazardous Materials, addresses the potential for exposure to hazardous materials present within the project site. x Airport/Aircraft Hazards and Noise – The project site is not within an adopted Airport Land Use Plan or located in the vicinity of a private airstrip. There is a helistop located along Santa Ana Canyon Road, west of Weir Canyon Road, which is used by the City of Anaheim Police Department. There are no helicopters based at this location and no regularly scheduled helicopter stops; it serves as a helistop for occasional use. There is also a heliport approximately seven miles north of the project site in the City of Yorba Linda at the Robert B. Diemer Filtration Plant. This heliport is used only three to four Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-7 Introduction times per year. Implementation of the proposed project would not increase the use of these facilities and continued operation would not pose a safety threat to future residents. Additionally, the use of these facilities would not result in noise impacts to future residents due to the distance of the facilities from the site, their infrequent use, and existing ambient noise levels.
x Flooding Due to Dam Failure – Based on the Dam Inundation Map (Figure S-7) provided in the City of Anaheim Safety Element, the project site is not within a dam inundation area. Therefore, implementation of the proposed project would not expose people or structures to a significant risk involving flooding due to dam failure. x Seiche and Mudflows – The project site is not located near any large bodies of water in which a seiche could occur. Additionally, the soil composition of the site consists of rocky formation not susceptible to mudflows.
x Mineral Resources – The City of Anaheim General Plan (Figure G-3, Mineral Resource Map) identifies an MRZ-2 Mineral Resource Zone, Aggregate Resources Only area within the northern portion of the Mountain Park project site. This area represents the quarry previously operated onsite and is not identified in the General Plan as containing mineral resources of regional significance. Mineral resources were extracted from this site continuously from 1954 until December 2004 when the extraction license agreement between the project applicant and the Robertson’s Ready Mix expired. At that time, the majority of the economically viable sand and gravel minerals at this site had been removed. Implementation of the project would not result in the loss of the availability of mineral resources that would be of value locally or regionally. x Displace People or Homes – The proposed project would not remove any existing homes or residential structures and no impacts would occur. x Change in Air Traffic Patterns – The proposed project would have no effect on air traffic patterns because it is a residential development project and would not include any uses or structures that would interfere with aircraft operations, including the private helistop located along Santa Ana Canyon Road, west of Weir Canyon Road, that is used by the City of Anaheim Police Department, or the private heliport in Yorba Linda. The project site is not proximate to any airfields or airports and is not within Airport Environs Land Use Plan (AELUP).
x Exceed Wastewater Treatment Requirements – Wastewater originating from the project site would be generated by residential, school, limited commercial and recreational uses, and would ultimately be treated at the Orange County Sanitation District Reclamation Plant No. 1 in the City of Fountain Valley. The wastewater treatment requirements issued by the Santa Ana Regional Water Quality Control Board for the treatment plant were developed to ensure that adequate levels of treatment would be provided for the wastewater flows emanating from all land uses within its service area. Therefore, the residential wastewater from the project site will not cause the treatment plant to exceed these treatment requirements.
2.4 PROJECT SPONSORS AND CONTACT PERSONS
The City of Anaheim is the lead agency for preparation of this EIR. All inquiries regarding the Draft EIR should be directed to the City. The applicant for the proposed project is The Irvine Community Development Company.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-8 Introduction Key contact persons are as follows:
Lead Agency City of Anaheim
Mr. Ted White
Associate Planner
Planning Department
200 S. Anaheim Boulevard
Anaheim, CA 92805
[email protected]
(714) 765-5139 ext. 5754
Project Applicant The Irvine Community Development Company Mr. Bryan Austin
550 Newport Center Drive
Newport Beach, CA 92658
2.5 REVIEW OF THE DRAFT EIR
The Mountain Park Specific Plan Amendment Draft EIR has been distributed to responsible and trustee agencies, other affected agencies, surrounding cities, and interested parties, as well as other parties requesting a copy of the draft EIR in accordance with Public Resources Code Section 21092. The Notice of Completion for the Draft EIR has also been filed with the California Department of Office of Planning and Research (OPR) as required by CEQA Section 15085. During the 45-day public review period, the Draft EIR is available for purchase at the City of Anaheim Planning Department and available for review at the following locations:
x City of Anaheim Civic Center, Planning Department (refer to address above) x Anaheim Public Libraries and associated branches
- Canyon Hills Library
400 Scout Trail
Anaheim, CA 92807
Telephone: (714) 974-7630
- Central Library
500 W. Broadway (at the corner of Harbor and Broadway)
Anaheim, CA 92805
Telephone: (714) 765-1880
- Sunkist Library
901 S. Sunkist Avenue (between Lincoln and Ball)
Anaheim, CA 92806
Telephone: (714) 765-3576
x City of Anaheim Web page: www.anaheim.net. Select the Planning Department from the Department list, and then select Mountain Park from the left links column.
Written or electronic comments on the EIR should be addressed to Mr. Ted White at the address provided above. Upon completion of the 45-day public review period, written responses to all significant environmental issues raised will be prepared and available for review prior to the public hearing before the City of Anaheim Planning Commission and City Council when certification of the EIR is considered. These environmental comments and their Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\2 Intro-031405.doc 2-9 Introduction responses will be included as part of the environmental record for consideration by the decision makers for the project.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-1 Project Description SECTION 3
PROJECT DESCRIPTION
3.1 PROJECT LOCATION
The proposed Mountain Park Specific Plan project site is located generally in Gypsum Canyon, south of the Riverside (SR-91) Freeway, in Orange County, California. The majority of the Mountain Park project site is in the jurisdiction of the City of Anaheim; however, open space in the southern- and eastern-most portions of the project site is in unincorporated County of Orange jurisdiction in the City of Anaheim’s sphere-of-influence. The regional location and local vicinity of the project site are depicted on Exhibit 3-1. SR-91 is immediately north of the project site, and the Eastern Transportation Corridor (SR-241) bisects the site into eastern and western segments.
3.2 ENVIRONMENTAL SETTING
The Mountain Park Specific Plan No. 90-4 area, hereinafter referred to as the “project site,” encompasses approximately 3,001 acres. Additionally, there are off-site project features that encompass approximately 22.8 acres (described in Section 3.3.4, Off-site Project Features).
References to the “study area” in this document refer to the project site and off-site project features.
LAND USE AND PLANNING
Exhibit 3-2 provides an aerial photograph of the project site and immediately surrounding areas.
As shown, the project site is currently undeveloped with the exception of the approximate 300-acre Robertson’s Ready Mix (Robertson’s) sand and gravel mining, concrete ready-mix and All American Asphalt manufacturing site located in the northeastern portion of the project site.
Robertson’s operated under an extraction license agreement with The Irvine Company that terminated in December 2004. All American Asphalt is a sublicensee to Robertson’s and also ceased operations in approximately December 2004. Pursuant to the requirements of the Surface Mining and Reclamation Act of 1975 (SMARA), there is a Reclamation Plan for the Robertson’s facility previously approved by the County of Orange. The City of Anaheim is coordinating with Robertson’s to refine the Reclamation Plan based on current site conditions.
Pursuant to provisions of the Reclamation Plan, removal of equipment and facilities should be completed no more than six months after the termination of the extraction license agreement (June 2005); however, the extraction license agreement requires that the site be vacated by April 2005. Completion of actions required by the Reclamation Plan is the responsibility of Robertson’s. These actions include, but are not limited to, remediation of hazardous materials and grading to ensure geotechnical stability of the slopes on the site, and proper drainage, revegetation and protection of the site from erosion. Implementation of the Reclamation Plan is not part of the proposed project and will precede construction of the project.
Additional site disturbance is limited and is associated with unimproved roads, prior cattle grazing, an abandoned clay mine, and a former rocket fuel test site.
The Mountain Park study area is bounded on the west by The Summit of Anaheim Hills Specific Plan Community (2,117 residential units) and the Sycamore Canyon Specific Plan Community (1,180 residential units) in the City of Anaheim. As shown in Exhibit 4.1-2, provided in Section
4.1, Land Use and Planning, General Plan land use designations for these Specific Plan Areas include Low Density Residential (0 to 6.5 dwelling units per acre), and Low Medium Hillside Residential (0 to 6 dwelling units per acre). A church facility and equestrian stables are located Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-2 Project Description immediately west of the project site along Santa Ana Canyon Road. The Coal Canyon Biological Corridor located in the City of Anaheim and Chino Hills State Park in unincorporated Orange County (City of Anaheim Sphere-of-Influence) is located east of the project site. An approximate 15-acre privately owned parcel (Parcel No. 94-205) is adjacent to the eastern boundary of the project site (south of the quarry operation) and has a Low-Medium Density Residential Designation with a maximum of 140 units allowed. Unincorporated land in the County of Orange (City of Orange Sphere-of-Influence) is south of the project site. SR-91, Featherly Regional Park and residential communities in the City of Yorba Linda are located north of the project site.
LANDFORM AND AESTHETICS
The project site is topographically complex with several steep canyons and intervening ridges (refer to Exhibit 3-3). Elevations within the project site range from 340 feet above mean sea level (amsl) in the northern portion of the project area to 2,200 feet amsl in the southern portion of the site. The central/northern portion of the site along Gypsum Canyon Creek slopes gently upward at approximately two percent from north to south. The slopes within the existing quarry area are generally zero to 45 percent. The majority of the remainder of the site consists of steep slopes ranging from 30 to 75 percent.
The project site is currently undeveloped with the exception of the on-site quarry facility located in the northeastern portion of the project site. Views of the project site are characterized by a large open canyon feature (Gypsum Canyon) located within a perimeter of ridges and, due to the project’s location on the north and northwestern hillsides of the City of Anaheim which are at higher elevations and visible from surrounding areas, much of the project site is visible from a number of vantage points surrounding the project site, including distant areas. Photographs with descriptions of existing views of the project site are provided in Section 4.2, Landform and Aesthetics.
GEOLOGY AND SOILS
The general soil types located within the project site consist of alluvium/colluvium, bedrock material, landslide material, and fill material and are discussed in Section 4.3, Geology and Soils. Several landslides of varying sizes have been mapped across the project site and are described in Section 4.3, Geology and Soils.
HYDROLOGY AND WATER QUALITY
The project site is located within the Santa Ana River Basin and includes a majority of the Gypsum Canyon watershed as well as a West drainage area, an East drainage area, and several freeway drainage areas, all of which ultimately drain into Reach 2 of the Santa Ana River. Reach 2 of the Santa Ana River extends from the Prado Dam downstream to the intersection of 17th Street and Fairview. The majority of the drainage flows originating within the project site drain north via Gypsum Canyon Creek, toward the mouth of the canyon near the intersection of Gypsum Canyon Road and SR-91. At SR-91, Gypsum Canyon Creek flows in an earthen channel through Featherly Regional Park to the Santa Ana River. The existing drainage facilities, including capacities and existing flows, are described in detail in Section 4.4, Hydrology.
The project site lies entirely within the Santa Ana River regional watershed and is within the jurisdiction of the Santa Ana Regional Water Quality Control Board. Receiving waters for the project include Gypsum Canyon Creek and the Santa Ana River, both of which have historically been monitored for water quality data and are described further in the Santa Ana River Basin National
Angeles
Forest
Camp
Pendleton
Cleveland
National
Forest
,AKE
-ATHEWS
#ASTAIC
,AKE
6ENTU
RA
SELEGN!SO,
3 A
N
"
ERN
ARDIN
O
/RANGE
3AN
$IEGO
2 IVERSIDE
[_
!NAHEIM
§¨
§¨
§¨
§¨
§¨
§¨
§¨ §¨
§¨
§¨
§¨
§¨
§¨
§¨
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
tu395
tu101
#ORONA
)RVINE
0ALMDALE
0ASADENA
2IVERSIDE
,ONG"EACH
,OS!NGELES
3ANTA-ONICA
3AN
3ANTA
6IEJO
"EACH
3ANTA
2ANCHO
2ANCHO
$OWNEY
#ARSON
)SLAND
/NTARIO
-ISSION
#LARITA
3AN*UAN
7HITTIER
#LEMENTE
,AKEWOOD
'LENDALE
#UCAMONGA
-ARGARITA
,ANCASTER
3ANTA!NA
(AWTHORNE
#ALABASAS
#APISTRANO
(UNTINGTON #OSTA-ESA
"UENA0ARK
3EAL"EACH
6ICTORVILLE
3IMI6ALLEY
7ESTMINSTER
9ORBA,INDA
7EST#OVINA
,AGUNA"EACH
0ALOS6ERDES
3ANTA#ATALINA
7EST(OLLYWOOD
0!#)&)#
/#%!.
Project
Location
Anaheim City Boundary
Anaheim Sphere-of-Influence
Vicinity Map
'64$0&
ENGINEERING
Source:
Mountain Park Specific Plan Amendment EIR No. 331
Regional Location
Legend
Anaheim City Limits
Anaheim Sphere-of-Influence
Exhibit 3-1
March 11, 2005
10 5 0 10
Miles
The Summit of
Anaheim Hills
Sycamore
Canyon
Featherly
Park Coal Canyon
Biological Corridor
(Part of Chino Hills
State Park)
Gyp
s
um
Ca
nyon Cre
e
k
City
of Anaheim
(City
of Anaheim
Sphere-of-Influence)
Windy Ridge
County of Orange
Weir
Can
R
yon
d
Santa Ana
River
Oa k Canyon Dr
Gypsum Canyon
L
Rd
a P
Santa Ana
Canyon Rd
City of Yorba Linda
SR-91
S
R-2
41 Aerial Perspective of the Project Area Exhibit 3-2
March 11, 2005
Source:
Mountain Park Specific Plan Amendment EIR No. 331
Legend
Mountain Park
Project Site
Anaheim City Limits
Quarry Lease Area
The Summit of Anaheim Hills &
Sycamore Canyon Specific Plan Boundary
Robertson's Ready-Mix Parcel
(Not a part of the project)
Existing Pipeline Alignment
Not To Scale
MAJOR RIDGELINE
LEGEND
DEVELOPMENT AREA
PROJECT BOUNDARY
CITY OF ANAHEIM LIMITS
Source:
ROCK OUTCROPPING
NOTE: CONTOURS AT 10' INTERVALS
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-3 Project Description Plan. Specific water quality data for receiving waters, ground water, and surface water are presented in Section 4.5, Water Quality.
BIOLOGICAL RESOURCES
Biological resources on-site are described in Section 4.6, Biological Resources. In summary, vegetation within the Mountain Park study area is predominantly composed of a wide variety of scrub and chaparral communities. In addition, several grassland, woodland, and riparian habitats exist within Gypsum Canyon Wash and the many tributaries that drain into it. The study area supports several sensitive plant communities: coastal sage scrub; riparian scrub; woodland; and forest; Tecate cypress forest; nolina chaparral; and needlegrass grassland. The coastal California gnatcatcher (Polioptila californica californica) and Braunton’s milk-vetch (Astragalus brauntonii) are the only federally or state listed species known to exist on-site.
Several streams occur on-site and are tributaries to Gypsum Canyon which bisects the site.
TRAFFIC AND CIRCULATION
As described in Section 4.7, Traffic and Circulation, the proposed project site is located near the junction of State Route 91 (SR-91), which is also known as the Riverside Freeway, and State Route 241 (SR-241), which is also known as the Eastern Transportation Corridor toll road.
Existing roadways that provide access to the study area include Santa Ana Canyon Road, Weir Canyon Road, and Gypsum Canyon Road.
With the exception of access to the sand and gravel mining and associated operations, the project site is gated and public access is not allowed. There are a number of unimproved dirt roads that traverse the site that were used for previous on-site operations and emergency access.
AIR QUALITY
The project site is located in the South Coast Air Basin (SCAB) which is within the jurisdiction of the South Coast Air Quality Management District (SCAQMD) and the California Air Resources Board (CARB). The SCAB has been designated as an extreme non-attainment area the 1-hour and ozone standard and a severe non-attainment area for the new 8-hour ozone standard, announced in April, 2004. Section 4.8, Air Quality, describes the existing air quality conditions in the study area.
NOISE
The ambient noise environment on the project site is dominated by quarry operations and traffic noise from both the SR-241 and SR-91. Occasional aircraft overflights also contribute to the noise environment. The existing noise environmental is further described in Section 4.9, Noise.
HAZARDS AND HAZARDOUS MATERIALS
As described in Section 4.10, Hazards and Hazardous Materials, although mostly undeveloped, portions of the project site have been historically subject to land uses involving hazardous materials including operations associated with the quarry site which has been mined since the mid-1950s and the McDonnell-Douglas former rocket fuel test facility. The quarry site will be remediated consistent with the requirements of the approved Reclamation Plan prior to initiation of construction activities for the proposed project.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-4 Project Description The project site, which is characterized with dry, steep slopes covered with combustible vegetation, is located in a designated Very High Fire Hazard Severity Zone
POPULATION AND HOUSING
The project site is located within both incorporated and unincorporated areas of the City of Anaheim. There are no residential uses on-site and current employment is limited to the Robertson’s Ready-Mix operation. Section 4.11, Population and Housing, provides information regarding local and regional demographic information relevant to the proposed project.
PUBLIC SERVICES AND UTILITIES
Existing public services and utilities related to the project site are described in Section 4.12, Public Services and Utilities. The project area is currently served by the City of Anaheim Fire and Police Departments and the City of Anaheim Public Utilities Department for water and electricity. Sanitary sewer service is provided by City of Anaheim collector facilities and then conveyed to trunk sewers owned and maintained by the Orange County Sanitation District.
Solid waste is disposed of at landfills within the Orange County landfill system. Existing utilities on-site are limited to those serving the quarry site. The project site is within the Orange Unified School District. The City of Anaheim provides library services.
RECREATION
There are no improved recreational uses located on the project site; however, there is an unimproved dirt road/trail which traverses the site in a north-south direction. Currently, there is no public access to this road. Off-site recreational uses in proximity of the project site include state parklands, County of Orange regional parks, and local, city-owned parks. Recreational facilities are further described in Section 4.13, Recreation.
CULTURAL RESOURCES
A records search and pedestrian surveys of the project site were conducted to assess the presence of or potential for archaeological resources within the project site. Based on the records search, none of the previous surveys conducted within the project site identified cultural or historic resources. Additionally, archaeological resources were not found during the pedestrian surveys conducted for the proposed project. The project site does contain rock formations that have a high paleontological sensitivity. Archaeological and paleontological resources are further discussed in Section 4.14, Cultural Resources.
3.3 PROJECT DESCRIPTION
3.3.1 PROPOSED SPECIFIC PLAN AND ZONING CODE AMENDMENTS Specific Plan Amendment
The City of Anaheim currently has 11 approved specific plans governing land use development in designated areas. Specific plans are customized regulatory documents that provide more focused guidance and regulation for identified areas. The City of Anaheim approved the Mountain Park Specific Plan (SP 90-4) in 1991. As previously noted, the proposed project involves an amendment to the Mountain Park Specific Plan to establish allowable land uses for the project site consistent with the City’s current General Plan. As shown on Exhibit 4.1-2, General Plan Land Use Designation, provided in Section 4.1, Land Use and Planning, the project site includes areas designated on the City of Anaheim General Plan Land Use Plan for Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-5 Project Description Low-Medium Hillside Density Residential (0 to 6 dwelling units per acre) and Low Medium Density Residential (0 to 16 dwelling units per acre allowed within the Mountain Park Specific Plan area) with an overall density cap of 2,500 dwelling units, Institutional, and Open Space.
The proposed Mountain Park Specific Plan Amendment is consistent with the current City of Anaheim General Plan, as discussed further in Section 4.1, Land Use and Planning.
The proposed Specific Plan Amendment would also include an amendment to Chapter 18.112 (Mountain Park Specific Plan No. 90-4) of the City of Anaheim Municipal Code to replace the current standards with new Zoning and Development Standards that correspond with the proposed Mountain Park land uses. As previously noted, the proposed uses are consistent with the current General Plan land use designations for the project site. The Mountain Park Specific Plan Amendment establishes the framework for the development of the project site. In addition to describing the project’s purpose, vision, and features, the Specific Plan presents the project description and zoning and development standards. Specific project components addressed in the Specific Plan include: land use plan, circulation plan, street lighting, housing and population, community design guidelines (landscape concept, fuel modification, trails, residences and water reservoirs), grading concept and project phasing. The Specific Plan also presents project information related to proposed public facilities.
Exhibit 3-4 depicts the proposed development plan for the Mountain Park Specific Plan. The development plan identifies the location of the proposed development and open space areas.
The Development Areas encompass 826 gross acres. Table 3-1 provides a summary of the primary land uses proposed in the Mountain Park Specific Plan. The Mountain Park Specific Plan would allow for the development of a maximum of 2,500 residential units in Development Areas 1, 2, 3, 4, 5 and 7, public facilities, infrastructure, and open space. A fire station, trails staging area, interpretive center and/or store concession are proposed in the approximately 8-acre Development Area 6. A school site and adjacent public community park are proposed in Development Area 3. Open space areas encompass approximately 2,163 acres and consist of Natural Communities Conservation Plan and Habitat Conservation Plan (NCCP/HCP) Reserve, The Nature Conservancy Anaheim Conservation Easement (TNC ACE) and other open space areas that are described below. These open space areas are generally located in the southern portion of the project site and serve as a transition to the surrounding open space in the area.
There are restrictions associated with development/disturbance of NCCP/HCP Reserve and TNC ACE areas that are discussed below under Open Space/Recreation. These established open space areas were a key factor in developing the land use plan for the project.
3.3.2 PROJECT DEVELOPMENT COMPONENTS
This section provides a description of the following project features:
x Residential Development Areas
x Project Circulation
x Open Space/Recreation
x Public Facilities
x Infrastructure
x Landscape and Lighting Concepts
x Fire Protection
x Grading Concept
x Biological Resource Protection Features
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-6 Project Description TABLE 3-1
MOUNTAIN PARK SPECIFIC PLAN AMENDMENT
STATISTICAL SUMMARY TABLE
Maximum Dwelling Units
Land Use Designation
Development/
Open Space
Areas
Applicable
Zoning
Districts
Gross
Area
(Acres)
Singlefamily
Detached
Singlefamily
Attached
Residential
1 RMP-1,
RMP-2
161 210a. –
2 RMP-2,
RMP-3
87 130 –
3 RMP-3,
RMP-4
88b. 50 –
Low-Medium Hillside
Density/Residential
(0 to 6 du per acre)
7 RMP-3,
RMP-4
36 95 –
Subtotal 372 485 –
4 RMP-4,
RMP-5,
RMP-6
Low-Medium Density/Residential 163 420 –
(0 to 16 du per acre)
5 RMP-4,
RMP-5,
RMP-6
291 770 825
Subtotal 454 1,190 825
Total Residential 826 1,675 825
Open Space c.
NCCP/HCP Reserve 940 –
TNC ACE 913 –
Other Open Space
Open
Space/
Recreation 310 –
Total Open Space 2,163 –
Institutional 6d. Public and
Special
Purpose
5 –
Public Highways 7
TOTAL 3,001 1,675 825e.
DU dwelling unit
NCCP/HCP Natural Communities Conservation Plan/Habitat Conservation Plan TNC ACE The Nature Conservancy Anaheim Conservation Easement a. At least 50 percent of the dwelling units in DA 1 shall be developed in the RMP-1 zone. b. Includes a minimum 10-acre school site and 15-acre park site. If the school site is not purchased by the OUSD for a school, the Specific Plan allows for the transfer of units to Development Area 3 from other Development Areas if the traffic generated by the transferred units does not exceed the amount of traffic that would be generated by a school with 800 students (as assumed in the traffic analysis prepared for the project). Prior to the City’s approval of a Density Transfer, a General Plan Amendment would be required to be processed and approved to remove the school site designation from the General Plan (Figure PSF-9, Public Schools, Libraries, Community Centers, and Cultural Facilities Map). c. The City of Anaheim General Plan Land Use Designation for the area is “Open Space” and includes: NCCP/HCP Reserve, TNC ACE and Other Open Space.
d. Includes fire station, trail staging area, interpretive center, and/or potential store concession. e. No more than 33 percent of the total dwelling units constructed in Mountain Park may be SFA.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-7 Project Description Residential Development Areas
As noted previously, the Mountain Park Specific Plan Amendment proposes the development of a maximum of 2,500 dwelling units in six development areas. Development Areas 1, 2, 4, and 5 are located east of SR-241 and Development Areas 3 and 7 are located west of SR-241 (refer to Exhibit 3-4). The residential development areas encompass approximately 826 acres and are generally located in the northern portion of the project site. Development Areas 1, 2, 3, and 7 consist of Low Medium Hillside Density Residential uses which allow up to six dwelling units per acre, and Development Areas 4 and 5 consist of Low Medium Density Residential uses which allow up to 16 dwelling units per acre in the Mountain Park area. Specific land use regulations and development standards contained in the Mountain Park Specific Plan would guide development of the residential land uses. Conceptual characteristics of each planning area are described below. During the tentative tract map stage of project development, the project characteristics, including the total number of units in each Development Area and estimated square footage may be subject to limited modifications, as allowed by the parameters set forth in the Specific Plan.
x Development Area 1 – Development Area 1 is the southernmost development area in the eastern portion of the project site and encompasses approximately 161 acres. There are a maximum of 210 single-family detached dwelling units proposed. The size of the lots is estimated to range from 5,000 to 7,000 square feet. Access to this development area would be provided from the extension of Gypsum Canyon Road. A water reservoir is proposed south of this development area and is discussed in more detail below under “Infrastructure”. x Development Area 2 – Development Area 2 is located between Development Areas 1 and 5 in the eastern portion of the project site and encompasses approximately 87 acres. A maximum of 130 single-family detached dwelling units are planned within this area, and access would be provided from the extension of Gypsum Canyon Road. The size of the lots is estimated to range from 4,000 to 5,000 square feet.
x Development Area 3 – Development Area 3 encompasses approximately 88 acres and is located west of SR-241, north of the proposed extension of Weir Canyon Road.
Development Area 3 is proposed to include a maximum of 50 single-family detached dwelling units. The size of the lots is estimated to range from 3,375 to 4,000 square feet. A 15-acre public community park and minimum 10-acre school site are proposed within this area. It should be noted that if the Orange Unified School District (OUSD) does not purchase the school site for a school, the Specific Plan allows for the transfer of dwelling units between Development Areas. In this case a unit transfer would be allowable as long as the traffic generated by the transferred units does not exceed the amount of traffic generated by an 800-student school. Prior to the City’s approval of a Density Transfer, a General Plan Amendment would be required to be processed and approved to remove the school site designation from the General Plan (Figure PSF-9, Public Schools, Libraries, Community Centers, and Cultural Facilities Map). Access to residential uses within the development area would be provided from public street access on Mountain Park Drive, a proposed new roadway within the project site (refer to Exhibit 3-5). x Development Area 4 – Development Area 4 is located in the northern portion of the site, adjacent to and east of SR-241 and encompasses approximately 163 acres. This development area is proposed to include a maximum of 420 single-family detached dwelling units; access would be provided from Mountain Park Drive. The size of the lots is estimated to range from approximately 1,600 to 3,375 square feet.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-8 Project Description x Development Area 5 – Development Area 5 (approximately 291 acres) is located in the northeast portion of the project site and is proposed to include a maximum of 770 singlefamily detached residential units and 825 single-family attached units. The size of the lots is estimated to range from 1,600 to 3,375 square feet. Access to this development area would be provided from Mountain Park Drive and Gypsum Canyon Road. A proposed private recreation center is located southwest of the intersection of Gypsum Canyon Road/ Mountain Park Drive, adjacent to Gypsum Creek (refer to discussion provided under “Recreation and Open Space”). Additionally, a water reservoir is proposed in the eastern portion of this Development Area (refer to discussion under “Water System”). x Development Area 7 – Development Area 7 is located southwest of the proposed Weir Canyon Road extension, west of SR-241 and is approximately 36 acres. This area is proposed to include a maximum of 95 single-family detached dwelling units; access would be provided from the proposed extension of Weir Canyon Road. The size of the lots is estimated to range from 3,375 to 4,000 square feet. A water reservoir is proposed southeast of this Development Area (refer to discussion provided under “Water System”).
Project Circulation
Vehicular Circulation
The conceptual vehicular circulation plan for the proposed project is shown on Exhibit 3-5.
More detailed circulation plans for each Development Area would be reviewed by the City of Anaheim during the tentative tract map stage of project development.
As shown in Exhibit 3-5, there are two proposed entries into the project site: Gypsum Canyon Road and Weir Canyon Road. As part of the project, Gypsum Canyon Road would be extended south from its current terminus south of Santa Ana Canyon Road and would terminate within Development Area 1. Weir Canyon Road would be extended from its current terminus immediately south of Blue Sky Way to a proposed interchange at SR-241. The SR-241/Weir Canyon Road interchange would be implemented as part of the project (as described in Section
3.3.5, Caltrans-related Project Features) consistent with an interchange reimbursement agreement executed between the project applicant and the Foothill/Eastern Transportation Corridor Agencies (F/ETCA) in 2004. This EIR addresses construction of, and modifications to the proposed design for the interchange that were addressed in the Final EIR/EIS prepared for SR-241. Review and approval of the interchange design by Caltrans would be required. A Draft Project Report/Project Study Report (PR/PSR)1
is currently being prepared for this facility
(refer to Section 3.3.5).
The proposed circulation system includes the following types of arterial roadways and collector streets: hillside primary arterial (standard and modified), modified hillside secondary arterial, and modified hillside collector street. These facilities are described below and Exhibits 3-6a through 3-6e provide roadway cross-sections. The roadway cross-section locations are provided on Exhibit 3-5.
x Hillside Primary Arterials provide circulation within the City and to adjacent communities.
Hillside Primary Arterials are typically six or four lane divided facilities with no parking.
Within the project site, Gypsum Canyon Road between Santa Ana Canyon Road and
1 Draft Project Report/Project Study Reports (PR/PSR) and Project Study Report/Project Reports (PSR/PRs) are types of technical engineering documents that are prepared for improvements of State Highway facilities. They vary from one another in detail based upon the complexity of the proposed improvements.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-9 Project Description SR-91, and Weir Canyon Road are identified as four-lane Hillside Primary Arterials (refer to proposed cross-sections for standard and modified Hillside Primary Arterials provided on Exhibits 3-6a and 3-6b).
x Hillside Secondary Arterials provide for circulation within the City and are typically fourlanes, undivided roadways with no parking. Within the project site, Santa Ana Canyon Road is identified as a Hillside Secondary Arterial and would have a modified cross-section as shown on Exhibit 3-6b.
x Hillside Collector Streets distribute residential traffic from its point of origin to higher capacity facilities. These streets are typically two-lane undivided roadways. Within the project site, the extension of Gypsum Canyon Road south of the proposed Mountain Park Drive to its terminus within Development Area 1 would be a private Hillside Collector street.
A new roadway extending from the future extension of Weir Canyon Road through the project site to Gypsum Canyon Road would also be a Hillside Collector street, and is herein referred to as Mountain Park Drive. This would be a public street from Weir Canyon Road to the proposed gate west of the Mountain Park Drive bridge overcrossing, and a private street from the gate across the bridge over SR-241 to Gypsum Canyon Road. Streets entering Development Areas 1, 2, 4, and 5 would also be private Hillside Collector streets. The proposed cross-sections for these roadways are modified from the typical cross-section and are shown on Exhibits 3-6c, 3-6d, and 3-6e.
In addition to the arterials and streets identified above, the project would also include a network of interior streets serving the proposed residential uses. The right-of-way for these would typically be 56 feet wide, with 18 feet in each direction for travel lanes and parking, six-foot wide parkways, and four-foot wide sidewalks on both sides of the street. The proposed cross-section for these streets is provided in Exhibit 3-6e.
As shown on Exhibit 3-5, Mountain Park Drive would bridge SR-241 to provide access between Development Areas east and west of SR-241. This structure would be constructed as part of the project at the same time as the portion of Mountain Park Drive on the east side of SR-241.
This project feature is described in Section 3.3.5. Since the bridge would be within Caltrans right-of-way, the bridge would be designed to Caltrans standards. Review and approval of the bridge design by Caltrans would be required. A Draft Project Study Report/Project Report (PSR/PR) is currently being prepared for this facility (refer to additional information provided in Section 3.3.5, Caltrans-related Project Features). It should be noted that a bridge overcrossing in this area (previously referred to as Oak Canyon overcrossing) was assumed in the Final EIR/EIS prepared for SR-241. This EIR addresses construction of and modifications to the proposed location for the bridge overcrossing that were addressed in the Final EIR/EIS prepared for SR-241.
A bridge structure would also be provided over Gypsum Creek along Gypsum Canyon Road.
The Gypsum Canyon Creek bridge would accommodate one lane of traffic in each direction, a center median and a raised pedestrian sidewalk on one side of the bridge. The bridge would be 50 to 55 feet in width and would be approximately 200 feet long.
Other notable on-site circulation features that are proposed as part of the project include the following:
x Traffic calming features, including: “street chokers” (curb extensions) that reduce the curbto-curb dimension and do not allow for on-street parking; a 4-way roundabout at the intersection of Gypsum Canyon Road and Mountain Park Drive; and ”knuckles” (turns in the road that do not allow for street parking). All of these features would be designed to meet Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-10 Project Description fire truck turning radius requirements. Conceptual diagrams of these circulation features are provided in Exhibits 3-7a through 3-7c.
x A mountable/drivable fire emergency lane in the median of Gypsum Canyon Road into Development Areas 1 and 2, and the entrance to Development Area 4. The median would be designed and maintained to support imposed loads of the Anaheim Fire Department apparatus (refer to Exhibit 3-7b).
x Manned gates would be provided at Gypsum Canyon Road and west of the Mountain Park Drive bridge overcrossing (refer to Exhibit 3-5). To facilitate traffic flow, the main gates would provide separate resident/visitor entry lanes. There would be two lanes for residents and one lane for visitors at the Gypsum Canyon Road gate and one lane each for residents and visitors at the Mountain Park Drive gate. These gates would be manned 24 hours per day, seven days per week. The entrances to Development Area 7, the school site and community park would not be within the gated area of the project.
Off-site circulation features are described in Section 3.3.4.
Bikeways
The proposed bikeway plan for the project is presented on Exhibit 3-8. The objective of the bikeway plan is to provide access from Santa Ana Canyon Road, through the project via Mountain Park Drive, and connect to Weir Canyon Road. As part of the proposed project, public Class II, on-road striped bikeways would be provided on the following roadways:
proposed Mountain Park Drive; extension of Weir Canyon Road within the project site; Gypsum Canyon Road between Featherly Regional Park and Mountain Park Drive; and Santa Ana Canyon Road (portion within the project site). The proposed bikeways are depicted on Exhibit 3-8 and would be public facilities even though they are located in a gated community.
The portions of the bikeways on private streets would be maintained by the HOA. The Class II bikeways proposed along Mountain Park Drive and Gypsum Canyon Road are identified as Proposed Top Priority Class II bikeways in the City of Anaheim General Plan (Figure C-4, Existing and Proposed Bicycle Facilities).
Recreational Trails
The proposed project includes a system of existing and proposed trails. The proposed trail plan is shown on Exhibit 3-8. The objective of the trail plan is to provide access from the trail staging area at Gypsum Canyon Road/Santa Ana Canyon Road, through the project site via off-road trails. There is an existing unimproved dirt road that generally extends in a north/south direction through the project site. A planned public regional trail included on the City of Anaheim General Plan (Figure G-5, Equestrian, Riding and Hiking Trails Plan) and the County of Orange Master Plan of Regional Riding and Hiking Trails generally follows this dirt road. The proposed project includes implementation of improvements to this regional riding and hiking trail from the Santa Ana River south to the TNC ACE boundary. This trail would link the Featherly Regional Park Trail and the Santa Ana River Trail (refer to Exhibit 3-8). Access to the Gypsum Canyon Creek Trail would be provided from the proposed trail staging area in Development Area 6. This trail would be constructed to County of Orange standards. It should be noted that regional trails are implemented with processing and implementation of subdivision maps. At this time it is anticipated that the segment of the Gypsum Canyon Creek trail alignment to be constructed as part of the project (from Santa Ana River to the TNC ACE boundary) would be implemented with subdivision maps associated with Development Areas 1, 2, 4 and 5.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-11 Project Description The proposed southern portion of the Gypsum Canyon Creek trail alignment would not be included in subdivision maps or in the project because it is located within the TNC ACE.
Consistent within conservation easements, all development rights in the TNC ACE property have been extinguished, and instead the property is restricted for use in perpetuity for the protection and preservation of conservation values. Pursuant to the terms of the ACE, public access for recreation within this area is only allowed subject to an access plan approved by the TNC, and public access must be balanced with the need to preserve and protect the natural, ecological, scenic and open space values of the property. Thus, the ACE provides that the property owner/developer may not unilaterally construct or open public access recreation trails within this area. The ACE does provide that the existing unimproved roadway within the TNC ACE would continue to be available for its existing emergency use access purposes.
The project would also include private unpaved trails internal to the proposed development that would be owned and maintained by the future Homeowner’s Association. Locations of private trails internal to the project would be determined during the tentative tract map stage based on natural topography. Generally these trails would follow existing unimproved dirt roads within the project site and would be approximately 5 feet wide.
As discussed in Section 3.3.4, Off-site Project Features, the project would also involve the implementation of a portion of the Gypsum Canyon Creek Trail north of the project site that would connect to the existing Santa Ana River Trail. This trail is consistent with the City of Anaheim General Plan (Figure G-5, Equestrian, Riding and Hiking Trails Plan) that identifies a regional trail along Gypsum Canyon Creek.
Open Space/Recreation
The open space and recreation components of the project are part of The Irvine Company’s approximate 50,000-acre Irvine Ranch Land Reserve (IRLR). The IRLR includes the open space areas within the Irvine Ranch property, including but not limited to: The Irvine Company lands (approximately 21,000 acres) within the County of Orange Central & Coastal Subregion NCCP/HCP Reserve; over 11,000 acres of area within conservation easements; various wildlife and marine preserves; open space; recreational facilities; and cultural and educational facilities.
The primary goals of the IRLR are to further protect and preserve its sensitive resources, and to provide new and diverse recreational access to the public.
Open Space
The proposed project includes the following open space components which are depicted on Exhibit 3-8 and described below: 940 acres within the NCCP/HCP Reserve; 913 acres within the dedicated TNC ACE; and 310 acres of other open space. The NCCP/HCP Reserve and TNC ACE areas would be accessible to the public only subject to an access plan if and as approved by third parties.
NCCP/HCP Reserve
The NCCP/HCP Reserve is discussed in Section 4.6, Biological Resources, and summarized in this section. The NCCP/HCP was adopted by the California Department of Fish and Game (CDFG), U.S. Fish and Wildlife Service (USFWS), and participating agencies in 1996 to address protection and management of coastal sage scrub (CSS) habitat and CSS-obligate species, and other covered habitats and species, including oak woodlands and Tecate Cypress. The City of Anaheim became a signatory to the agreement in 1998. The NCCP/HCP mitigates anticipated impacts to those habitats and species, on a programmatic, sub-regional level, rather than on a project-by-project, single-species basis. The NCCP/HCP involved the establishment of an Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-12 Project Description approximate 37,000-acre Reserve for the protection of CSS, other upland habitats, the coastal California gnatcatcher, and other species identified in the NCCP/HCP. As noted above, 940 acres of the project site are within the NCCP/HCP Reserve and are protected by the provisions of that program. It should be noted that the NCCP/HCP identified development areas where impacts to species and habitats would be authorized under the plan. The proposed project impact area (refer to discussion in Section 3.6) is within a development area identified in the NCCP/HCP.
Following approval of the NCCP/HCP, the participating agencies (including the City of Anaheim) and participating landowners (including The Irvine Company), USFWS, CDFG, and the County of Orange signed an Implementation Agreement (IA). The IA sets forth the implementation requirements for the NCCP/HCP, including requirements related to dedication, creation, and management of the Reserve; interim management of the Reserve; funding for Reserve management; and procedures and minimization measures related to development impacts to, and “take” of, Identified Species, and modification of habitat in those areas designated for development under the NCCP/HCP.
The Nature Reserve of Orange County (NROC), a non-profit corporation, was formed in December 1996. The NROC Board of Directors includes participating landowners, agencies and environmental groups and is responsible for adaptive management coordination functions concerning the NCCP/HCP Reserve, including: policies for managing and monitoring of the Reserve, research, habitat restoration and enhancement, fire management, public access, permitting of infrastructure, existing uses and interim management, as specified in the NCCP/HCP. The NROC is also responsible for managing the endowment received from the participating landowners and agencies and any in-lieu mitigation fees that are collected from non-participating entities, and preparing and approving an annual report for submittal to CDFG and USFWS.
Each landowner is required to manage its property within the Reserve pursuant to the provisions of the IA, as outlined in the NCCP/HCP. The Irvine Company, a participating landowner in the NCCP/HCP, commissioned TNC to manage its wildland open space within the NCCP/HCP boundaries, including areas within the Reserve. TNC manages the NCCP/HCP Reserve areas within the Mountain Park site.
TNC Anaheim Conservation Easement
In November 2001, The Irvine Company pledged over 11,000 acres to TNC in the form of conservation easements, including the Anaheim Conservation Easement. TNC ACE is within the Mountain Park project site and includes 913 acres within three parcels. The conservation easements terminate development rights and establish restrictions in perpetuity for use of the property by the land owner. The purpose of the easements is to preserve and protect the following conservation values of the property: natural, ecological, scenic, open space, recreational and educational for conservation purposes. Uses permitted in the conservation easement areas that are relevant to the proposed project include: existing roads and trails; environmental enhancement activities; recreational activities; and limited slope stabilization and infrastructure activities to support development. These permitted uses are subject to specific provisions outlined in the ACE. New activities within the TNC ACE area must be coordinated with TNC. As with the NCCP/HCP Reserve areas within the project site, The Irvine Company also commissioned the TNC to manage the TNC ACE.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-13 Project Description Other Open Space
The remainder of the open space within the Mountain Park Project site (approximately 310 acres) is classified as “other open space” and would be owned and maintained by the project’s Homeowner’s Association unless another mechanism is established and approved by the City. The areas would consist of passive open space and amenities including trails.
Recreation
The Mountain Park Specific Plan includes public and private recreational facilities. An approximate 15-acre public community park is proposed within Development Area 3. This park, with improvements, would satisfy the City of Anaheim park requirements for private development. Specific facilities improvements to be provided at the community park would be determined in coordination with the City of Anaheim as part of subsequent tentative tract map and park plan approvals; however, it is expected that the following would be provided:
community center building, open turf for open play, tennis courts, basketball courts, baseball/ softball fields, soccer/football field, and picnic and gathering facilities. This would be a lighted facility.
In addition to the approximate 15-acre public park, the proposed project would include private recreational facilities. Based on conceptual plans for the project, private facilities would include a recreation center and pocket parks. An approximate two-acre private recreation center is proposed between Development Areas 4 and 5 and adjacent to Gypsum Canyon Creek.
Amenities that may be provided at this facility include: swimming pool and spa; community room; courtyard and terrace; tot lot; turf areas; and approximately 50 on-site parking spaces.
This recreation center would be managed by the future Homeowner’s Association and would be available to all residents within the Mountain Park Specific Plan area.
Private recreation facilities are also proposed within Development Areas 4 and 5. The southern portion Development Area 4 would conceptually include an approximate one-acre park with a pool, picnic/seating area, and small open turf area. A concept for an approximate three-acre park is provided in Development Area 5 and may include the following: pool and deck area, large open turf area for events/casual play, picnic/seating area. Additionally, up to five smaller parks (approximately 0.75 acre each) with seating/gathering areas and tot lots would be provided in Development Area 5.
Recreational trails proposed as part of the project were previously described. A trail staging area is proposed to be located within Development Area 6, adjacent to the planned fire station.
Amenities that are proposed for this facility include water troughs, restroom, tables, interpretive signage, and parking (approximately 24 automobile spaces and six trailer spaces). The trail staging area would be accessible from Santa Ana Canyon Road and Gypsum Canyon Road and the trails along these roadways. An approximate 3,000 square foot store concession/ interpretive center would be provided within Development Area 6 adjacent to the trail staging area.
Public Facilities
In addition to the recreational facilities described previously, the proposed project includes a fire station and school site.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-14 Project Description x Fire Station – The proposed project involves construction of a City of Anaheim fire station within Development Area 6, northwest of the Santa Ana Canyon Road/Gypsum Canyon Road intersection. The fire station driveway would have an “on demand” traffic signal synchronized with the Santa Ana Canyon Road signals for the Trail Head and Gypsum Canyon road. A “keep clear” zone would be provided at the station driveway.
The fire station would be constructed to provide service prior to commencement of construction of residential units in the eastern portion of the project. A detailed fire station master plan, including station programming and site planning, would be submitted for review and approval of the City prior to the approval of the first tentative tract map for development in the eastern portion of the project site (east of SR-241). x School Site – A minimum 10-acre school site is reserved within Development Area 3. The reservation of this site would allow the OUSD to acquire the site and provide school facilities, if needed in the future. It is expected that a future school at this location would serve the Mountain Park Specific Plan area that is within the OUSD’s jurisdictional boundaries. Although construction of the school would be the responsibility of the OUSD, this Draft EIR addresses impacts associated with implementation of a school on-site. It should also be noted that the OUSD and the property owner/developer have entered into a School Impact Mitigation Agreement for the East Orange and Santiago Hills II projects in the City of Orange and the proposed Mountain Park project. The agreement was approved by the OUSD in December 2004 and outlines the School Facilities Plan for the Mountain Park project. The mitigation agreement is provided in Appendix K to this EIR. Further discussion is provided in Section 4.12, Public Services and Utilities.
Infrastructure
The proposed project includes the development of the following on-site infrastructure systems to accommodate the needs of the Mountain Park residential development: drainage, water, sanitary sewer, electric, and other utilities. The necessary on-site infrastructure that would be provided as part of the project would be constructed by the applicant to specifications of the City of Anaheim, and is described below.
Drainage System
The project site is within the Santa Ana River Watershed and includes a majority of the local Gypsum Canyon Watershed, a West drainage area, an East drainage area and three freeway drainage areas, all of which ultimately drain into the Santa Ana River. Existing drainage characteristics are described in Section 4.4, Hydrology.
The proposed drainage system for the Mountain Park Specific Plan area is depicted on Exhibit 3-9 and is described below. The proposed drainage plan is conceptual and consists primarily of reinforced concrete pipes (RCPs) of varying sizes to transport storm water runoff from the undeveloped and developed areas within the project site to the downstream areas.
More specific design and location of drainage facilities would be reviewed as part of subsequent plan approvals (i.e., tentative tract or parcel maps, storm drain improvement plans, and Caltrans encroachment permit).
In summary, the drainage system is comprised of three systems including a high flow bypass line for collecting drainage from undisturbed areas within the project site boundary and routing around the development areas, an on-site storm drain system to collect flows from the developed areas, and a low-flow water quality system to divert initial storm flows and dryweather flows to a series of water quality basins.
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
D e n s e T r e e s
D e n s e T r e e s
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Pool
Pool
Pool
Rocks
Rocks Rocks
Rocks
Rocks
Rocks
Rocks
Pool
Pool
Pool
Pool
Rocks
Water
Water
Water
Water
Water
Dry
Dry
Dry
Dry
Rocks
Pool
Pool
Pool
Pool
Pool
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
Rocks
751.3
766.3
766.4
768.7
765.3
765.1
765.4
766.9
771.3
766.6
731.1
726.7
570.2
544.7
544.9
546.1
545.9
540.1
523.3
522.5
520.7
524.8
524.3 524.5
532.8
531.5
532.9
530.8
511.4
509.2
517.0
482.7
467.8
468.8
470.5
468.9
467.4
465.3
464.5
444.9
445.1
443.3
443.9
444.9
445.3
444.5
448.9
446.7
449.3
449.2
449.1
463.3
449.6
449.3
449.3
449.5
453.4
451.5
451.4
449.6
449.8
449.5
440.8
437.8
438.9
438.7
440.7
441.2
441.0
441.2
441.4
441.4
443.7
442.7
440.8
443.1
443.2
447.8
447.8
447.4
447.3
446.9
447.0
446.9
444.9
444.6
445.2
444.9
446.5
447.6
447.6
447.9
448.1 450.8
450.7
448.6
448.5
448.7
448.5
448.5
446.7
447.6
447.6
444.7 444.9
445.2 445.0
446.6
449.4
448.7
468.1
449.5
449.1
449.1
431.8
431.8
434.8
424.5
431.2
431.6
430.8
432.9
432.9
433.2
433.8
433.7
435.1
433.6
432.8
432.7
433.4
432.7
433.1
433.5
434.4
435.0
435.0
434.9
435.2
434.3
437.1
436.7
421.1
422.3
421.8
431.6
432.9 433.3
433.6
398.1
398.6
399.9
405.1
405.4
416.8
417.6
418.5
417.6
413.5
411.3
409.1
412.4
411.8
412.7
415.0
419.0
414.9
414.5
409.4
413.6
412.8
412.7
411.8
411.6
411.4
411.3
413.1
413.1
412.9
414.7
415.3
414.8
415.3
415.6
414.1
414.7
416.8
419.0
416.2
395.4
394.4
392.9
392.4
392.9
393.2
395.5
393.6 394.4 394.4
391.4
391.6 391.1
390.9
391.2
389.2
387.6
396.3
370.6
370.7
370.7
370.7
371.0
371.5
371.6
372.4
372.1
372.1
373.0
372.9
373.1
372.1
372.6
372.9
373.0
373.6
375.5
375.1
374.4
374.5
374.7
371.0
370.4
370.5
369.2
368.8
371.8
372.5
372.8
372.3
372.5
373.1
372.2
371.4
372.3
371.4
370.2
370.6
371.0
369.6
372.9
372.8
372.1
373.1
372.6
372.5
373.1
372.2
371.3
371.0
370.2
372.5
373.2
371.1
371.5
371.7
370.1
370.8
371.1
371.1
370.5
370.7
371.3
370.4
370.4
370.8
371.1
371.6
372.8
372.5
367.7
368.7 361.3
368.9
369.2
368.6
368.4
367.6
367.7
367.8
367.2
365.7
365.6
365.1
365.3
365.0
368.3
366.7
369.0
365.6
368.5
369.5
366.3
368.3
365.5
365.5
367.0
367.4
367.7
368.9
366.7
366.7
367.3
367.6
367.6
367.5
368.5
368.4
369.6
369.1
369.3
369.8
368.9
368.9
368.3
368.4
368.6
368.6
363.2
361.8
362.6
362.8
363.3
361.7
362.8
362.6
360.4 360.5
360.7
361.5
362.5
361.4
360.5
367.1
367.5
366.9
363.7
364.6
365.5
353.2
369.8
368.4
368.5
368.5
369.1
369.5
369.5
368.1
368.1
368.7
369.3
369.6
367.2
366.7
366.4
366.2
365.3
366.2
366.5
366.5
367.0
364.7
364.5
366.9
368.4
368.6
369.5
355.7
359.4
365.3
765.3 764.7
764.6 763.2
763.9
762.8
625.7
584.8 585.8
361.0
365.3
368.8
369.7
367.5
368.3
368.1
367.9
370.8
370.4
368.8
368.2
368.8
369.7
369.8
370.4
371.1
367.2
367.4
367.5
367.6
367.0
366.9
366.6
366.7
367.2
365.3
365.3
367.0
.0
361.2
361.5
843.8
833.4
831.5
820.9
824.5
820.1
811.9
810.3
804.3
801.0
818.7
814.5
801.5
778.7
791.4
797.6
781.6
763.9
761.6
767.7
765.8
776.3
751.1
744.8
743.6
753.9
748.3 746.3
752.7
758.4
757.5
756.7
751.5
751.2
744.9
746.9
745.5
750.2
743.8
742.5
737.0
723.3
725.8
733.1
750.2
751.8
720.7
723.3
718.9
715.7
716.9
719.2714.2 706.9
715.2 713.5
682.9
679.9
678.2
679.9
666.9
671.9
669.5
640.7
641.9
640.4
625.1
633.3
632.5
630.9
634.3
631.1
629.0
602.4
600.7
611.5
604.9
603.2
602.5
601.1
600.3
602.3
586.6
581.1
580.9
582.4
591.8
586.8 594.4
593.1
596.8
598.9
599.2
583.9
582.7
580.9
580.3
584.5
595.3
598.8
602.9
601.2
597.0
601.0
600.5
585.3
589.1
566.7
566.8
560.6
562.9
568.1
567.5
564.8
572.5
578.6
574.9
571.3
562.7
565.1
561.3
579.0
579.7
548.8
546.5
544.2
542.9
540.4
550.6
550.2
555.3
558.5
559.3
556.8
555.2
552.6
559.1
557.2
551.0
552.5
552.6
545.0
546.8
546.4
547.2
545.9
543.0
547.7
544.6
540.6
544.6
545.7
546.8
548.6
542.6
557.1
556.2
554.8
552.7
559.0
558.1
554.9
517.5
516.9
518.6
517.8
519.5
520.5
518.8
518.9
527.2
521.0
529.0
525.7
525.6
522.7
522.3
528.1
528.5
533.1
533.4 529.2
526.9
529.1
528.5
536.5
536.9
539.4
536.9
534.8
537.0
539.3
539.2
536.9
535.1
532.5
534.7
536.5
528.8
527.0
524.9
523.2
523.1
525.0
531.3
531.0
521.4
523.8
523.3
516.7
533.2
530.7 530.7
545.3
530.7
543.6
548.9
1159.4
1160.2
1162.3
1160.3
1161.6
1160.7
1152.9
1125.7
936.3
925.7
923.1
969.4
966.5
968.3
1048.9
1051.3
1068.5
1054.1
1056.4
1037.2
1037.0
1036.5
1032.4 1027.1
1029.9
1024.9
1026.5
1003.3
1004.3
1004.4
1004.9
1011.9
1011.3
1006.6
1006.6
1006.8
1005.3
1010.5
1010.5
1008.6
1008.9
1006.8
1007.3
994.9
985.0
985.3
985.9
984.7
985.2
984.6
980.5
980.6
980.9
980.8
988.9
989.3
994.3
980.8
981.3
993.1
1000.5
999.7
1000.2
999.5
980.2 966.6
976.3
967.6
956.7
975.4
961.9 978.8 979.4
943.1
910.6
916.2
920.8
920.2
939.1
939.3
944.4
950.1
949.3
957.5
957.3
958.7
957.8
959.0
946.6
962.6
952.3
950.3
949.2
947.5
929.3
929.9
930.7
932.4
931.9
932.2
922.3
927.0
932.2
927.9
923.0
923.3
923.4
922.2
937.7
912.6
913.2
902.7
911.1
906.5
906.7
913.1
908.5
916.9
915.5
908.9
918.9
895.4
894.9
862.9
863.3
869.0
848.7
844.9
843.3
842.5
813.2
818.8
818.3
817.9
893.5
861.4
875.2
898.7
892.3
899.5
918.2
888.3
907.8
892.1
901.2
905.5
877.9
865.4
863.9
845.7
846.3
845.8
845.6
847.0
873.7
820.6
821.1
825.0
827.1
831.0
823.2
819.2
777.5
771.4
886.6
625.8
624.3
584.9
584.1
566.1
541.3
521.1
520.9
718.6
695.1
692.8
614.2
599.0
599.2
582.9
582.8
550.1 545.6
524.8 525.3
520.8
522.8
522.9
522.5
525.2
521.4
523.6
523.1
522.9 504.1
503.8
504.5
517.7
512.2
512.5
512.6
513.3
515.0
511.4
519.0
519.2
519.4
519.5
518.3
519.0
517.5
507.8
506.9
500.5
501.0
501.2
513.0
511.3
510.8
500.7
514.9
513.4
512.8
511.6
510.7
510.3
491.7
493.7
493.9
494.1
493.9
494.7
495.2
495.5
495.4
495.7
495.3
494.8
494.6
494.4
497.5
497.1
496.8
496.9 497.1
496.9
497.1
496.9
499.5
499.1
499.2
501.4
499.0
499.1
499.1 500.7
496.3
491.5
498.6
498.1
492.3
491.6
490.8
490.7
496.8
499.6
484.4
479.7
482.6
489.7
489.0
485.1
485.4
471.1
470.9
471.4
478.7
476.4
475.8
475.2
474.2
461.9 462.8
460.1
462.1
465.1
463.8
464.7
469.0
465.1
461.3
469.3
451.5
451.9
453.1
457.7
458.8
456.9
455.3
450.9
451.0
450.5
450.6
459.0
455.4
457.2
452.8
453.0
451.0
454.7
456.8
458.4
454.9
452.8
450.5
453.1
430.4
440.6
441.1
441.3
440.7
442.1
449.1 448.5
443.3
451.2
441.5
447.0
447.1
447.3
447.0
446.9
448.9
448.7
444.9
444.7
444.6
445.2
445.3
445.0
441.1
441.2
440.8
440.7
442.9
450.5
445.1
447.1
453.0
455.3
448.7
448.8
448.7
448.9
446.4
446.6
440.7
442.5
440.3
441.1
440.2
440.5
442.8
443.9
441.5
440.9 440.9
440.9
440.1
441.2
441.3
441.5
440.8
442.8
443.7
446.5
447.6
449.1
443.7
447.4
448.6
447.5
444.9
443.4
442.7
439.1
427.4
427.6
427.3
439.8
439.8
438.8
439.1
439.2
444.2
443.2
442.6
445.0
440.3
440.2
441.0
441.2
440.8
441.1
440.5
440.9
440.4
440.9
441.4
441.1
444.8
442.8
444.7
444.8
443.2
442.7
442.8
442.8
442.9
443.6
442.7
442.9
443.2
440.3
442.6
443.2
441.4
438.9
438.7 436.8
434.8
433.1
430.8
437.6
437.3
437.5
436.8
436.4
437.0
437.3
437.1
439.2
438.6
438.8
437.5
430.8
430.5
430.8
430.3
433.4
432.9
432.1
434.4
434.8
434.8
435.8
436.1
437.0
437.1
436.8
438.2
438.9
439.4
438.3
439.6
430.2
431.6
432.1
438.1
437.4 437.0
435.7
435.3
434.9
434.9
432.5
432.7
433.0
433.5
439.3
439.5
438.6
439.3
438.9
439.0
438.8
437.2
436.9 439.5
437.9
435.3
438.9 435.7
436.4
434.9
436.6
435.6
433.0
432.9
431.2
430.9
430.9
430.7
433.0
433.4
436.5
434.6
432.7
432.5
430.7
438.4
432.6
430.3
415.4
418.1
434.8
430.3
429.0
430.4
429.2
436.4
436.4
436.6
435.9
435.0
435.7
435.7
434.5
436.1
433.3
435.3
435.3
435.0
433.4
420.9
423.9
420.5
421.7
423.0
420.2
420.4
419.8
420.9
420.4
422.7
422.6
421.1
420.2
425.7
426.3
425.1
426.3
426.5
423.2
428.2
420.3
421.3
420.3
420.4
427.4
426.1
424.7
423.7
420.3
425.1
422.4
423.3
423.1
423.0
423.0
422.6
420.2
420.8
421.1
421.2
421.1
420.5
420.9
421.0
420.9
421.1
420.6
420.7
405.6
419.9
419.5
419.6
419.6
419.4
419.2
419.4
418.9
416.9
408.7
413.3
417.2
419.0
419.6
415.5
413.6 413.2
412.4
403.5
417.8
410.6
410.9
410.8
411.6
410.8
410.6
412.7
417.4
418.7
414.4
415.6
417.4
418.9
417.1
415.2
418.8
413.6 414.8
414.9
415.4
416.7
415.6
415.6
415.7
418.9
419.6
419.0
419.0
419.3
418.2
419.6
417.1
417.6
417.2
417.9
417.8
417.8
416.6
416.6
417.4
417.9
418.8
419.1
418.7
418.7
415.3
414.8
412.6 416.7
413.0
426.4
422.8
428.5
424.3
426.6
428.7
429.4
427.3
429.1 425.2
425.2
425.4
424.3
423.5
423.1
422.6
424.7
426.9
426.5
416.6
415.1
414.2
414.7
413.1
412.6
410.4
411.0
415.6
387.5
414.6
404.6
404.5
404.8
409.1
409.2
409.1 408.5
405.3
405.0
411.5
402.3
399.5
399.9
403.5
403.2
401.4
403.5
402.9
403.6
404.8
405.5
406.4
406.5
407.1
406.5
407.2
407.8
406.5
406.9
406.8
408.7
409.0
409.6
409.9
409.6
412.0
411.1
410.9
411.3
409.3
403.0
402.4
400.9
406.4
413.2
407.0
409.1
407.0
407.4
401.1
405.1
405.1
405.4
405.7
404.7
400.7
395.7
395.2
396.6
397.7
397.2
397.1
398.6
399.4
399.8
389.0
397.7
397.8
398.5
399.0
399.6
399.2
393.3
396.2
397.6
398.5
399.3
401.2
404.5
389.6
384.7
384.1
391.1
391.7
391.0
391.7
391.2
391.5
390.6
390.9
391.0
392.8
391.8
391.1
390.6
391.0
391.0
390.7
390.3
390.7
390.5
390.5
390.3
389.8
391.8
396.1
395.3
389.7
385.7
385.5
386.8
386.7
389.3
389.1
374.7
385.2
379.6
379.3
389.4
381.3
385.0
371.6
372.8
372.9
373.6
374.6
373.8
373.3
375.7
374.8 374.7
375.0
374.5 375.3
374.6
376.4
377.6
377.8
377.4
376.7
377.1
726.2
723.9
726.7
727.1
726.8
726.2
725.2
724.8
725.4
726.9
727.0
726.4
726.6
728.6
727.5
727.0
726.5
726.7
726.1
725.7
725.6
725.5
724.7
726.5
726.5
726.1
726.1
726.5
715.1
703.3
688.9
674.3
673.3
689.8
706.2
700.1
692.3
699.3
699.1
699.2
693.2
690.8
690.6
691.9
664.4
657.0
657.4
658.3
658.6
656.8
657.0
657.1
656.4
656.7
655.4
655.4
655.4
654.9
653.6
653.4
652.9
651.8
651.6
651.1
653.0
651.6
655.6
655.2
655.2
654.9
654.6
654.2
653.3
653.5
655.1
653.5
653.4
652.6
653.3
653.0 653.0
652.9
652.2
651.3
655.6
656.2
655.0
656.3
640.7
639.7
640.1
638.7
639.1
615.3
614.1
610.7
634.8
619.0
619.4
600.3
586.4
586.2
583.6
582.8
583.4
583.8
584.6
583.4
581.4
580.9
582.9
585.2
585.4
586.4 589.0
586.3
584.9
585.5
585.1
584.6
598.4
586.2
587.3
585.0
588.4
573.1
573.2
571.6
573.4
573.2
573.1
573.5
575.0
574.5 574.7
574.5
573.9
573.7
573.1
576.8
579.3
584.9
552.3
573.2
548.9
549.1
527.5
527.6
527.3
527.3
527.7
528.1
528.4
529.3
528.5
529.2
537.5
536.9
533.3
534.4
531.6
548.7
548.9
549.6
549.2
520.8
527.8
528.7
527.0 526.5
526.5
527.5
527.4
527.4
526.6
525.0
525.5
525.6
527.3
525.3
539.2
539.4
545.4
505.7
507.7
509.3
509.3 509.5
508.7
508.8 508.6
511.2
510.2
510.9
510.7
510.8
514.5
549.3
537.4
548.7 546.8
534.4
534.7
530.2
530.5
531.4
532.2
530.3
528.8
521.7
520.5
522.4
476.3
510.5
510.8
510.9
511.0
510.2
510.3
510.9
511.3
515.3
513.3
512.5
512.9
511.1
511.2
510.5
510.3
511.2
510.7
511.3
515.7
515.1
515.2
520.8
518.7
514.6
496.7
500.8
501.3
501.1 501.1
501.3
501.1
503.7
509.5
509.6
509.9
509.5
509.0
509.3
508.8
509.0
509.3
508.9
508.8
508.8
518.7
501.2
476.4
479.2
479.5
479.6
480.6
481.6
483.1
500.1
500.8
492.9
481.2
469.9
470.3
470.4
488.4
454.9
467.2
467.3
467.1
467.1
466.7
466.5
465.0
465.0
464.4
461.7
452.1
456.8
460.4
454.5 449.1
445.5
433.7
426.7
410.5
395.3
400.9
403.0
404.9 404.3
407.4
403.1
401.2
407.3
404.1
396.5 395.9
397.3
395.2
398.6
394.8
385.0
388.4
390.2
370.5
370.1
370.7 370.6 370.9
371.6
371.3
371.6
372.2 372.3
371.1
382.5
382.9
384.9
378.8
389.0
385.2
381.2
379.0
377.0
375.2
374.4
373.5
373.3
373.1
373.1
373.3
375.1
373.7
373.7
373.6
376.6
377.0
375.3
375.1
373.2
371.3
377.5
376.5
379.1
363.3
364.8
367.7
367.5
366.8
363.4
364.9
365.3
366.3
366.6
367.1
367.3
368.4
368.1
367.0
378.6
406.3
405.6
405.8
406.6
406.5
406.4 406.5
406.7
406.7
406.1
405.0
403.1
400.9
398.9
397.0
394.4
395.1
395.4
394.3
393.0
392.7
393.1
392.6
393.4
379.6
380.5
380.5
380.9
380.5
380.1
363.5
363.8
364.5
365.2
365.4
365.5
369.1
369.3
368.4
369.7
367.5
369.1
371.6 371.2
367.7
368.7
369.0
367.2
367.4
367.1
366.7
366.1
365.6
366.7
367.3
367.6
369.3
370.1
370.7
371.4
371.0
369.0
369.3
369.3
369.8 369.1 371.1
367.4
365.4 364.6
373.4
368.5
368.8
367.3
365.1
366.7
367.0 373.0
369.3 367.3 367.3
367.2
371.1
370.6
370.3
371.8
371.4
369.7
370.8
370.7
371.2
370.2
370.5
370.1
371.6
372.6
372.5
373.3
373.8
373.1
374.1
373.9
372.1
374.6
373.2
373.2
372.7
372.9
372.1
372.2
372.1
372.1
374.1
372.2
372.5
372.2
372.1
370.6
373.7
373.8
373.2
380.3
377.4
374.3
371.5 373.2
373.5
375.0
374.4
372.7
368.5
371.1
374.6
374.7
374.9
371.0
371.1
374.4
378.7
376.3
376.7
377.2
376.4
376.8
375.3
375.2
374.8
375.2
374.5
374.4
373.1
372.7
372.4
373.6
372.5
376.3
374.6
375.5
375.5
377.6 377.4
378.6
379.2
376.4
372.9
371.1
372.4
372.5
372.9
373.6
374.1
375.1
375.7
375.5
376.2
376.1
376.4
376.4
377.7
379.6
379.3
378.8
379.2
376.6
376.8
376.7
375.6
376.3
375.3
374.8
378.6
377.3
377.3
376.7
376.6
373.1
378.6
378.2
378.8
377.3
375.1
376.4
374.7
377.5
376.5
370.5
371.5
368.9
368.1
371.0
371.1
373.8
1130.9
1132.3
1132.9
1025.2
1025.4
1028.2
1024.8
1017.2
1015.4
1018.8
1011.4
1017.2
1009.9
1008.9
1008.8
978.7
973.0
973.9
955.9
954.9
954.2
950.4
950.3
950.7
950.7
950.9
951.0
946.7
948.8
948.5
949.3
949.1
951.1
950.9
952.6
947.5
934.6
925.9
892.1
892.2
892.4
891.5
891.6
892.2
885.8
884.8
879.8
882.2
881.7
880.8
881.1
883.6
880.6
881.1
883.4
882.7
883.2
880.4
880.9
880.6
882.5
881.4
880.9 880.7
880.4
884.4 884.1
882.9
883.9
887.3
872.1
870.2
874.7
877.0
875.1
875.8
876.5
876.7
876.6
876.2
875.4
867.7
867.5
867.8
868.6
873.7
873.8
873.7
874.9
871.7
870.9
878.8 879.2
879.1
877.2
877.2
876.9
875.4
875.1
874.9
871.5
871.2
870.9
872.8
877.0
879.0
879.1
878.9
876.9
876.9
878.6
878.6
872.6
873.4
874.3
874.8
875.4
876.7
877.5
879.2
879.3
879.3
876.2
876.7
877.5
878.2
878.7
861.5
861.6
860.8
861.5
868.9
867.1
868.2
866.7
865.4
866.9
868.4
868.6 867.1
864.8
864.4
866.4
866.5
864.8
865.0
864.9
863.0
863.0
862.9
866.5
865.6
864.7
863.6
862.2
861.6
860.5
860.9
860.8
860.8
861.2 862.5
895.1
855.9
860.9
871.1
868.9
864.8
860.9
840.3
891.3
891.6
855.1
855.4
855.4
858.7
858.5
860.2 858.6
857.6
856.8
856.9
857.0
855.5
854.6
856.8
855.4
852.9
853.4
853.2
855.6
855.0
855.3
856.2
855.6
854.6
853.9
851.5
854.7
855.0
854.7
854.5
856.3
856.1
856.2
855.7
855.2
857.4
859.0
856.4
856.3
840.2
848.7
836.5
835.0
835.2
835.9
836.9
816.9
809.4
811.0
810.8
811.2
811.0
812.6
814.8
816.7
815.0
812.9
812.4
813.3
812.8
811.2
811.0
810.4
811.3
811.0 811.5
811.2
811.3 812.8
813.0
811.9
811.1
813.2
813.0
815.0
817.0
816.9
817.2
818.4
819.1
819.5
818.8
811.3
809.7
818.8
816.7
817.3
818.9
821.5
822.6
820.5
819.1
817.2
817.0
817.1
818.6
819.2
819.6
820.9
815.2
813.0
810.9
810.8
810.9
810.6
811.2
808.6
808.6
816.2
782.7
798.6
798.4
798.7
798.6
798.4
798.2
798.4
797.4
825.9
835.0
876.1
831.6
832.4
833.0
833.2
830.7
833.1
834.7
836.3
835.3
835.6
835.7
834.4
834.6
834.9
835.2
835.5
834.9
834.6
833.1
833.2
830.8
830.9
833.3
834.8
842.5
843.6
845.2
845.0
845.0
847.1
845.7
845.2
844.9 845.1
834.5
834.6
834.6
816.8
807.1
807.6
808.9
808.9
806.9
806.9
805.3
806.8
806.9
807.1
806.5
806.2
807.2
808.7
808.7
808.6
808.3
806.6
806.9
807.1
807.8
808.2
808.6
808.1
805.2
806.9
785.6
771.7
774.9
770.8
785.9
810.9
809.8
808.8
766.6
756.8
769.1
765.4
761.0
755.7
750.6
767.7
760.5
758.9
759.8
756.4
757.8
763.2
764.8
765.4
764.4
730.9
734.2
729.7
737.0
729.9
741.8
745.9
747.2
745.0
741.5
736.8
721.9
744.5
744.4
744.7
1056.8
1056.8
1054.2
1054.3
994.5
1023.1
992.8
844.9
833.7
833.5
834.9
835.1
833.8
836.9
840.3
849.5
849.4
843.3
843.7
843.2
855.9
855.5
848.6
842.0
840.9
863.0
860.6
862.1
808.3
803.2
771.5
792.8
789.5
788.8
786.8
790.8
783.1
786.3
781.3
786.6
790.3
804.3
770.6
770.7
770.1
774.2
774.7
778.3
762.7
762.7
763.3
764.8
764.9
759.0
773.8
759.2
758.9
759.4
755.1
755.7
755.3
760.9
771.5
744.9 744.2
740.2
739.2
720.5
726.5
690.5
695.1
695.3
694.9
696.7
700.6
724.5
725.1
726.2
725.4
719.4
713.5
713.7
719.3
719.4
702.7
703.1
704.6
690.4
686.4
688.6
687.4
666.7
675.3
671.0
673.1
680.3
674.4 661.6
664.6
668.7
665.2
657.2
659.6
652.4
652.2
652.5
651.6
653.1
641.1
647.8
649.5
649.6
647.6
646.3
642.8
638.6
646.5
634.8
631.0
632.5
629.1
628.5
626.3
620.2
626.3
624.9
602.3
547.6
547.6
545.3
546.3
548.2
585.6
577.2
563.5
565.2
561.8
554.5
553.5
541.0
540.5
540.9
534.3
534.3
533.7
549.1
536.6
512.7
522.7
963.9
963.4
960.4
960.3
906.1
903.1
918.6
918.2
909.2
904.7
902.3
912.1
906.8
899.0
904.5
904.4
881.2
880.7
863.6
864.1
872.8
869.5
869.2
858.3
868.1
853.6
854.6
857.5
859.1
857.4
851.2
851.2
850.2
860.2 857.4
862.5
835.3
836.6
836.5
832.8
836.2
827.2
820.4
822.4
820.3
820.8
844.5
844.8
801.9
805.9
800.7
797.4
796.5
794.8
805.4
809.0
797.6
797.3
797.0
792.5
784.4
781.5
779.6
768.7
767.3
767.3
772.4
772.6
768.5
767.8
768.4
771.3
779.2
777.1 778.2
773.5
773.9 769.4
765.4
750.1
755.0
747.0
742.8
748.5
745.4
747.0
737.3
732.2
711.5
710.9
711.1
702.6
706.4
692.5
681.8
679.5
687.5
686.8
685.4
670.4
671.2
682.8
679.2
675.2 665.5
673.2
662.6
669.1
636.8
635.0
623.4
623.5 623.5
587.0
587.5
563.1
579.1
577.1
495.8
494.7
496.8
634.3
632.8
622.1
621.0
621.6
618.4
618.4
500.9
502.2
501.0
502.1
500.9
500.4
498.6
498.9
499.2
482.3
477.4
479.2
476.8
466.7
466.8
464.9
460.6
462.1
459.5
460.4
459.3
459.6
452.9
453.7
453.3
452.5
450.8
452.9
451.0
451.0
450.4 450.1
451.1
452.1
449.1
449.1
451.3
453.2
450.5
450.8
456.5
455.3
453.0
472.2
449.1
456.7
456.8
458.2
459.0
448.7
449.3
451.0
442.2
442.5
441.1
442.0
443.0
444.1
444.8
444.8
445.3
448.6
447.4
447.2
446.7
447.7
448.8
449.0
448.6 451.4
448.4
452.4
453.4
783.8
838.4
837.9
825.2
794.9
793.3
794.4
793.8
786.7
784.9
756.3
757.1
689.0
670.4
663.8
623.8
637.3
623.2
622.4
621.1
626.4
626.9
628.9
626.1 625.4
624.5
612.8
619.8
613.3
609.7
608.2
610.2
618.8
601.4
608.6
605.3
616.3
605.0
592.7
592.6
595.5
642.8
644.8
594.8
594.7
596.7
596.8
598.1
598.6
592.4
597.4
595.0
590.1
595.4
595.6
596.2
592.6
580.4
584.5
583.8
648.8
639.1
638.1
577.5
569.5
563.4
563.2
555.0
557.9
557.8
547.2
548.2
546.2
551.6
543.5
543.3
530.3
531.4
539.2
522.4
528.9
528.7
528.8
528.8
528.5
528.7
526.4
528.8
529.7
529.1
529.6
529.2
523.1
531.9
532.9
532.5
533.8
533.9
532.9
521.5
512.8
512.9
511.2
511.1
510.5
511.4
510.7
510.7
512.9
512.7
514.9
515.8
513.3
512.8
512.9
514.9
515.1
515.0
513.5
513.8
511.2
510.6
516.7
516.7
514.9
516.7
511.1
510.4
509.8
509.7
510.8
512.4
511.2
510.5
512.6 511.1
513.1
514.1
512.4
516.3
516.6
515.2
514.6
515.0
517.8 518.3
517.1
520.2
518.5
519.7
510.3
510.1
516.3
502.6
502.5
505.5
502.8
507.4
500.9
500.5
506.6
504.4
502.7
502.5
502.9
500.4
503.3
503.7
509.0
508.7
507.2
506.6
509.5
508.6
507.3
506.7
506.8
508.4
508.7
509.2
508.5
508.3
507.2
506.8
506.1
505.0
504.6
504.8
504.2
504.9
503.5
502.6
501.2
501.0
500.7
501.5
502.8
503.5
504.7 505.1
509.6
508.4
527.1
500.5
502.8
501.1
503.6
513.0
503.8
508.7
503.5
500.2
507.3
507.7
501.7
507.4
507.5
509.1
507.0
507.7
506.4
504.3
499.8
498.2
499.1
496.1
499.1
498.3
496.9
495.1
498.5
498.2
500.4
500.5
499.7
498.1
490.9
490.8
490.9
495.8
494.7 495.4
497.3
497.0
499.1
494.8
495.1
494.5
494.7
494.9
493.9
492.8
492.6
492.8
492.6
494.6
492.9
493.2
492.9
492.5
493.8
493.2
492.8
492.9
492.9
491.4
491.3
490.7
491.5
491.4
491.0
491.1
496.5
490.7
495.0
492.0
492.1
492.3
492.4
498.8
491.7
490.9
492.7
493.0
494.7
501.9
479.4
492.3
493.9
495.1
495.8
496.9
477.5
481.3
479.8
478.9
479.8
481.3
480.4
480.7
483.2
485.1
486.6
487.5
488.6
488.7
488.5
489.3
489.6
487.7
487.4
487.3
489.1
489.2
488.8
487.1
484.6
484.7
484.5
484.8
482.9
483.2
483.1
482.5
482.7
481.0
480.5
481.3
482.3
483.1
484.6
486.8
487.4
487.3
489.2
489.0
489.8
490.3
489.8
486.9
488.6
490.6
487.0
486.9
486.8
485.0
486.3
483.0
482.3
482.9
484.7
490.9
482.6
484.3
484.4
481.2
480.7
480.5
480.8
481.3
480.6
482.5
488.3
488.6
494.6
488.8
479.4
482.4
482.9
489.0
488.1
488.9
487.2
487.2
489.1
489.2
484.6
484.2 484.2
486.9
490.2
488.9
486.8
487.0
487.2
486.8
494.2
480.9
480.7
484.7
483.1
486.4
486.9
489.3
488.3
472.5
473.6
475.3
477.3
474.1
474.7
470.8
470.4
474.7
475.2
473.1
476.4
477.0
479.8
479.2
479.1
478.5
477.4
479.1
479.4
475.3
474.6
473.5
472.6
477.3
477.9
476.5
475.8
479.1
477.7 476.8
471.2
470.7
471.2
469.6
475.5
472.3
478.7
466.4
466.8
467.0
466.3
467.5
461.5 462.6
462.7
463.0
466.3
465.3
468.6
469.3
468.8
461.1
461.3
462.5
462.2
464.6
464.2
466.3
467.2
467.5
467.4
468.7
466.7
467.1
466.5
465.1
468.2 466.8
463.1
461.2
461.0
462.8
463.0
463.2
463.2
464.3
464.4
463.6
459.2
472.8
468.6
463.2
461.0
461.8
460.7
457.4
452.2
449.8
456.6
450.9
452.9
452.2
454.2
449.1
451.5
452.9
453.4
452.8
457.5
457.6
457.0
454.6
455.1
455.4
455.0
454.8
457.3
457.4
456.3
457.3 458.5
459.3
459.1
459.7
458.7
458.4
459.5
454.2
455.2
831.2
824.9
816.5
814.5
816.1
830.4
838.4
820.4
803.2
793.0
790.7
792.3
779.7
778.6
782.6
781.3
776.6
774.2
767.1
619.0
639.8
687.7
686.2
686.6
697.3
694.4
717.0
715.4
673.4
679.6
648.9
658.3
631.5
635.6
622.7
623.2
622.7
943.8
887.7
890.9
889.7
888.3
851.7
856.3
858.2
855.1
852.2
832.7
834.2
828.5
832.2
829.0
843.2
847.0
836.3
830.8
832.7
841.8
854.3
884.2
848.6
844.7
836.7
840.2
807.9
824.6
822.7
824.9
821.0
822.4 814.3
825.4
789.5
785.4
771.8 773.6
756.2
777.2
777.1
771.8
790.6
782.9
770.7
774.1
753.4
758.8
757.8
769.0
755.4
772.5
772.9
775.9
774.2
756.7 751.6
757.2
762.0
762.3
783.7
762.5
832.4
822.7
758.6
726.8
746.9
733.2
738.3
733.2
728.7
751.7
731.1
732.2
743.2
735.5
722.9
718.5
708.9
699.2
708.5
721.9
726.2
706.7
701.9
701.9
703.0
702.8
692.5
696.9
701.0
676.2
676.9
695.8
688.4
683.7
684.3
678.7
679.3
679.4
682.6
679.1
677.9
696.5
701.2
693.9
696.9
709.3
737.9
698.5
677.0
680.8
656.0
668.2
673.8
671.2
671.7
671.5
670.7
671.6
670.9
671.5
672.0
671.8
666.0
668.3
673.5
666.5
669.2
674.1
663.9
663.5
661.7
658.0
662.2
661.0
663.9
660.2
668.7
672.3
658.3
663.0
664.7
667.8
652.4
664.3
659.9
671.1
671.6
663.0
667.7
663.9
650.7
670.4
668.4
658.4
652.5
658.4
653.9
655.7
661.9
664.3
659.0
654.0
662.2
659.7
673.8
672.3
658.1
673.0
651.4
650.7
651.0
624.9
624.7
624.8
624.9
624.5
624.8
624.7
624.8
626.6
626.6
626.6
634.1
642.2
639.0
638.3
638.3
639.8
631.3
630.7
628.6
636.5
640.6
631.7
633.4
623.9
627.8
628.5
629.3
626.6
627.0
628.1 628.4
627.0
626.1
625.7
627.5
647.1
626.4
626.0
626.1
634.0
620.5
622.8 619.0
624.2
624.8
617.9
625.1
626.0
625.7
632.6
635.3
633.0
648.4
622.6
631.5
624.0
621.3
623.9
625.5
632.0
624.9
624.4
622.3
638.6
637.9
638.9
636.9
633.8
631.7
632.4
631.0
637.9
636.6
636.3
637.3
638.6
637.9
639.8
645.9
641.9
637.8
638.1
638.5
637.6
638.0
649.3
640.1
642.6
642.3
639.8
639.1
639.0
642.5
638.9
636.1
637.4
637.7
638.3 638.7
642.9
642.2
641.7
642.1
642.0
640.7
641.2
642.9
639.8
644.5
642.7
643.1
641.9 641.5
647.3
642.4
641.5
649.3
649.3
648.1
646.9
647.6
648.0
648.0
647.4
648.8
649.4
648.3
627.3
637.2
637.2
641.6
649.2
647.8
648.2 638.9
631.4
639.8
632.3
631.3
627.8
646.3
641.3
644.0
638.1
638.6
642.4
642.6
642.8
642.0
644.6
638.0
642.5
643.8
644.8
634.6
632.3
631.8
646.4
639.9
629.5
627.1
628.9
631.2
630.8
641.7
626.6
629.2
642.1
631.7
631.7
637.2
626.8
630.5
619.4
619.8
622.2
621.4
621.8
620.2
621.2
604.0
607.0
607.2
638.4
603.6
622.7
600.3
636.7
624.5
616.6
610.9
624.1
624.7
600.4
607.1
607.2
601.5
602.8
603.8
602.5
607.8 611.7
591.6
581.6
596.9
596.7
575.9
576.9
577.7
597.4
594.7
594.3
595.4
597.4
595.9
594.2
577.7
578.0
582.7
595.8
557.2
556.0
552.0 556.7
554.1
550.2
550.2
552.8
554.2
557.6
556.5
563.4
555.6
560.3
557.9
557.5 557.2
556.9
557.9
555.4
570.9
563.3
561.3
553.7
554.5
558.0
561.6
561.9
568.1
572.0
586.6
571.1
563.1
552.5
548.9
549.1
549.0
548.3
543.6
530.9
533.4
533.3
531.1 531.5
531.3
530.3
531.7
531.8
546.0
544.0
527.6
527.2
527.8
532.0
541.7
538.9
531.7
526.7
528.8
543.1
530.5
538.0
525.9
525.2
547.6
545.8
562.8
522.2
509.0
507.9
513.9
518.3
518.9
517.2
513.6
512.5
513.0
507.0
517.1
502.1
501.7
523.9
523.8
522.7
522.1
527.0
522.7
516.9
522.0
515.1 513.4
501.3
505.4
501.1
501.5
501.6
502.7
502.4
517.8
511.0
507.4
520.8
522.4
514.6
512.5
513.8
475.1
476.6
476.9
485.9
487.1
491.3
486.4
499.6
518.8
517.3
508.0
502.2
505.9
503.4
502.6
498.4
477.0
485.7
486.4
481.6
476.5
496.0
498.2
497.4
495.5
496.6
493.5
486.2
495.9
498.5
492.9
481.8
481.0
482.4
499.9
497.6
498.3
481.9
485.8
483.6
492.7
481.6
488.1
479.3
481.2
492.7
498.1
499.7
498.3
494.4
487.0
492.4
491.0
495.9
493.7
492.7
491.1
491.7
487.5
487.4 481.3
481.2
482.6
493.0
486.3
477.7
478.9
479.7
477.1
477.5
476.8
479.0
482.0
488.1
488.6
485.1
453.1
447.1
447.8
447.5
447.2
447.6
446.7
444.5
451.6
458.1
455.9
467.0
460.5
450.9
452.4
456.1
457.5
456.7
462.8
457.0
456.6
456.8
459.7
453.6
453.5
453.1
451.6
450.9
461.3
453.5
452.9
463.3
453.4
457.4
467.1
470.9
446.5
450.2
450.5
451.3
456.8
468.3
462.8
473.8 467.1
458.1
451.7
470.7
448.3
451.8
457.4
464.0
461.8
466.2
459.6
464.5
459.5
459.2
472.6
471.6
462.3
462.5
457.5
462.5
458.5
457.7
462.0 475.7
459.7
468.3
468.1
470.7
471.2
468.4
463.9
463.3
462.6
462.0
460.7
461.3
460.3
462.2
455.5
457.2
462.6
460.5
453.7
458.2
456.8
454.3
456.5
457.1
455.6 457.1
453.4
475.6
477.0
454.4
456.4
458.1
457.2
461.2
461.8
461.9
453.3
473.3
418.7
423.3
422.7
422.1
420.8
421.2
421.4
417.9
415.8
428.9
442.3
455.9
442.3
443.3
431.8
433.1
427.4
427.6
444.1 441.3
447.4
447.9
447.9
448.3
434.2
427.9
446.3
441.9
446.4
427.3
427.6
432.9
428.4
432.3
447.4
445.6
445.0
429.0
426.5
426.7
443.4
441.0
437.3
441.9
437.0
426.7
423.7
459.8
440.8
435.7
399.7
399.4
399.7
399.3
399.4
398.8
391.0
389.2
390.9
393.6
395.9
395.9
396.4
398.2
401.4
403.3
402.4
404.3
406.4
408.4
406.9
408.7
411.1
412.9
407.1
409.0
407.9
402.8
402.3
417.5
404.5
409.2
411.5
412.4
416.9
417.5
417.0
417.5
413.2 422.4
421.2
422.6
418.5
418.1
417.3
415.7
410.7
413.7
412.0
415.5
418.4
423.7
423.3
422.4
423.2
424.3
424.0
423.7
423.9
423.5
415.9
417.8
421.9
422.7
432.3
396.0
396.5
422.9
389.2
377.2 368.5
376.0
366.9
362.8
387.1
386.1 376.5
584.7
653.2
732.9 737.3
784.3
844.1
824.4
802.2
1243.9
1200.3
754.8
743.8
.8
355.5
976.8
977.5
996.7
998.6
1016.1
1337.5
1351.9
1438.1
1395.1
1291.8
1374.6
1275.1
1307.3
900.1
377.0
698.4
776.6
940.4
532.7
404.9
932.9
931.8
906.8
987 5 795.7
728.6
36 40
47 55
360
400
390
380
370
370 370
370
380
390
410
420
400
530
410
400
440
450
450
450
420
430
440
370
560 370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
550 560
570 58
5900
610
600
620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
510 500
490
480
470
460
450
440
430
420
410
400
390 380
370
370
370
380
390
410
400 550
550
560
570
430
440
460
450
480
470
490
580
570
560
550
540
530
520
510500
490
450
460
470
480
490
580
600
590
610
620
370
420
430
420
440
440
430
420
410
400
390
380
470
480
490
500
510
520
460
450
460
470
370
370
370
370
620
610
00 90
610600
590
0 770
580
570
560 550 540
530
520
510
460
450 440
430
420
410
400
390
370
380
470 480 490500
550
540
530
520
510
530
500
490
590
600
610
620
630
650
640
660
680
670
7 690
00 710
360
370
580570
770
760
740
720
710 720
840
730
800
920
720
590
740
760
760
610
620
620
630
640
650
660
670
680
690
700
710
720 710
700
680690
670 660
650
640
640
650
660
670
680
690
700
750
740
730
720
710
610
600
590
580
560
570
580 590
600
610
620
630
640
650
660
530
560
570
580
590
600
610
620
630
640
650
720
710
700
690
680
670
660
630
540
550
5 560
70 580
590
610
600 560
550
540 530
520
520 530 540
550 560
570
580
590
600
560
550
540
530
530
530
550
560
540
560
550
540
540
550
550
550
580
590
600
610
620
630
650 640
660
670
680
690
700
710
720
730
740
710
720
730
740
750
760 770
780 790
800
810
620 610 600
671
840 830820
810
800
790
780
750
680
770 760
770
780
790
760 750
740 730
720
710
700
690
680
670
660
650 650
660
820
830
810
740
750
730
680
690
700
710
720
730
740
750
760
770
780
790
800
800 790
780
770
760
750
740
730
720
710
690
700
760
760
750 740 730
720
710
700
690
680
670
660
650
650
660
830
600
600
610
620
630
640
650
660
670
680 690
690
680
670
660
700
650
640
650
660670680
690
700
690
680
670
660
650
640
630
620
610
610
630
620
600
590
580
570
560
560
610
600
590
580
570
560
620
610
600
590
570
580
570
570
570
590
580
600
610 620
620
540
580
580
580
590
630
660
670
650
640
630
620
610
590
600
600
610
620
630
640
650
660
670
590
600
740
730
720
710
700
690
680
670
660
650
640
630
620
610
800
790
780
770
760
750
740
730
720
710
700
690
680
670
810
820
750
680
690
710 700 720
730
740
750 770 760
780
790
800
780
790
800
810
820
670
890
910
920
930
940
950
960
970
980
990
1000
1010
1020
1030
1040
1050
1090
1080
1070
1060
1050
1040
1030
1020
1020
1020
1010
1000
990
980
830
840
850
860
870
970
960
950
940
930
920 910
900
890 880
1160
1150
1130
1140
1120
1110
1100
1090
1080
1070
1060
1050
970
980
990
1000
1010
1020
1030
1040
1050
1060
1070
1080
1090
1100
1110
1120
1130 1140
1150
980
990
1000
1010
1020
1030
900
910
920
930
930
940
950
960
970
980
990
1000
1010
830
810 910
820
850
860
840
830 840
850
1000
1050
1010
860
870
880
870
1010
890
900
910
900
890
880
910
1030
930
910
920
930
930
940
950
860
1000 1000
940
980
950
960
920
920
820
920
1010
870
860 850 990
980
980
970
970960
950940930
920
910
900
890
880
870
860
850
840
830
820
810
800
790
780
770
760
750
740
990
1000
990
980
970
950
960
940
930
920
910
900
1010
1020
1030
1040
890
870
880
860
770
780
790
800
810
820
830
840
950
940
930
920
900
890
910
850
860
870
890
900
910
880
920
930
940
950
960
970
980
1020
1010
760
770
760
770
780
790
800
810
820
830
840
850 860
870
880
890
900
950
960
970
980
990
1000
1010
1020
1060
1050
1040
1030
1020
1010
1000
990
980
970
960
950
940
930 920
910
1020
1010
1000
990
980
970
960
950
940
850
860
870
880
890
900
920
930
940
950
960 970
980
990
910
1030
980
990
1000
1010
1020
1030
1040
1050 840
930
920
910
900
890
880
870
860
850
840
830
820
810
930
940
950
960
980
970
770 780 790
800 810
820
830
840
760
850
860
870
880
890
900
910
920
970
960
950
940
930
960
950
940
930
920
910
900
890
880
870
860
850
840
970
920
960
960
960
950
970
980
990
1000
940
930
920
960
970
950
940
930
920
910
900
890
880
870
860
850
840
830
820
810
800
790
780
770
760 750
810
800
790
780
770
770
780
790
800
810
810
810
820
830
820
830
840
850
860
850
840
830
820
830
840
850
860
870
880 900 890
880
890
870
770
780
790
800
810
900
890
880
870
860
930
920
910
900
920
910
910
900
890
840
850
860
870
800810 810820
790
780
770
760
750
740
730
830
740
880
870 860
900
390
390
390 390
380
440
400
450
410
400
410
460
470
410
480
400
390
400
390
380
390
400
400
380
390
420
400
410
440
410
410
450
390
400
460
470
430
420
410
410
400
410
410
410
480
410
420
430
420
440
450
420
430
460
460
450
430
440
430
420
410
420
430
440
410
400
410
420
400
400
410
420 420
410
420
430
440
450
460
470
480
490
430
420
410
440
430
420410 400
400
410
420
430
440
430
420
420
430440
420
400
410
400
400
400
400 430
420
410
410
520
500
490
480
470
460
450
440
510
510
500
490
490
500
510
510
500
500
500
510
520
530
540
550
560
570
580
590
600
610
430
440
450
460 470
480
490
500
510
520
500
490
480
470
460
450
440
430
420
410
520
500
510
410
510 500
490
480
470
460
450 460
470
480
430
440
450
460
470
48 4900
500
510
520
530
540
55 560
0 570
580
420
420
430
430
420 420
420
440
430
430
440
430
430
440
440
450
460
470
460 450
440
430
430
520
510 480 490
500
530
540
550
560
570
580
590
600
610
610
600
590 580
570
560 550
540
530
520
510
500
490
480
470
460
520
510
500
490
480
470
450
460
450
440
440
440
440
440
440
440
450
450
460
480
470
490
510
500
520
530 540
560
550
460
460
470
480
500
490
480
470
680 670
660
650
690
700
710
640
630
620
610 600
590
580 570
560
550
540
530
520
510
500
620
440
440
450
460
470
480
490
500
570
580
590
600
610
620
630
680
670
660
650
640
630
620
610
600
590
580
570 560 550
540
560
550
540
530
520
510
500
500
490
510
490
480
490
500
510
520
530
540
550
480
490
410
430
420
410
370
380
440
430
460
450
440
390
400
410
490
450
380
450
460
480
490
470
480
510
460
490
510
520
530
500
480
480
490
500
540
500
520
540
530
550
520
510
520 530
530
530
540
550
580
510
580
640
560
560
540
560
550
550
540
530
570
570
700
600
610
600
610
380
380
370 370
380
390
390
380
390
400 400
470
500
520
500
580
570
590
580
610
600
590
580
620
630
620
630
620
590
380
390
400 410
420
390
400
430
440
450
460
470
480
490
500
510
520
530
480
510
500
490
480
470
470
470
460
450
440
430
420
410
400
390 390
400
410
400
410 420
430
440
440
430
440
420
450
460
470
480
490
500
510
500
490
480
470
460
450
440
430 420
500
490
480
470
460
450
440
430
420
410
400
390
380
370
370
540
550
560
570
580
590
600
610
620
630
430
440
450
460
470
480
490
500
510
520
530
540
550
560
570
500 510
520
530
540 550
560
570
580
590
490
490
500
510
540
530
520
510
490
500
510
520
520
510
490
500
490
500
510
500
490
510
510
510
520
520
530
540
550
560
570
580
590
600
610
620
630
640 650
660
670
680
690
520
530
610
600
590
580
570
560
550
540
530
520
520
530
540
550
560
560
550
540
530
540
550
630
640
650
620
610
600
590
530
540
510
550
560
570
580
590
610
600
620
630
640
650
660
550
550
560
570
580
590
560
570
510
540
530
520
530
540
550 560
570 580
590
600
610
620
630
640
650
660
670
680
690
530
540
590
600
610
620
630
640
650
660
670
680
690
700
540
530
550
560
570
580
590600 610
620
640
630
650
660
670
680
690
540
550
560
570
580
590
600
610
620
530
530
540
650
640
630
620
610
600
590
580
570
560
550
538
720
710
700
690
680
670
660
570
600
610
620
630
640
550
560560
590
580
Undef-Z
580
590
600
610
400
390
380
390
380
380
370
370
370
370
370
370
370
370
370
370
370
370
370
370
370
370
730
740
750
760
760
770
770
750
850
810
860
850 850
860 860
850
860 860
860
850
840
830
820
810
810
820
810
810
830
840
1020
860
850
830
820
810
740
730
750
760
770
780
790
800
760
750
740
750
740
730
720
710
700
730
830
820
810
800
790
780
770
870
880
890
890
880
880
890
900
910
920
930
940
950
950
860
850
840
850
840
850
860
870
880
890
900
910 920
930
940
950
960
970
980
990
1000
1010
1020
1010
1000
990
980
970
960
950
940
930
920
910
940
930
920
960
900
890
970
980 990
1000 1010 1020 1030 1040 1050 1060
1070
1080
1090
1100
1110
1120
1020
1010
1000
990
1030
1040
1050
980
970
960
950
940
930
920
910
900
900
890
880
870
870
900
830
840
850
870
880
890
900
910
920
930
940
950
960
970
980
990
1000
1010
840
790 800
810
820
830
840
850
860
870
820
830
850
860
870
880
890
900
910
920
870
880
890
900
860 850
910
920
930
940
950
960
1010
1000
990
980
970
960970
980 990
1000
1010
1020
1030
1040
1150
1140
1130
960
970
980
990 1000
960
970 980
990
830
840
870
880
890
850
900
970
960
950
940
930
920
910
900
890
880
870
860
850
840
830
820
870
860
870
880
890
1060
1070
1080
640
630
640
650
690
680
670
660
650
640
630
620
610
650
650
680
660
670
720
680
690
670
680
700
710
720
690
700
660
730
720
710
730 740
750
740
750
760
770
760
770
780
790
780
790
810
800
800
820
790
790
570
590
600
610
620
630
640 650
660
670 680
690
700
710
720 730
740
750
760
770 780
790
800
580
590
600
610
620
630
640
650
660
670
630
620
610
600
590
580
570
560
550
640
670 660
650
640
630
620
610
600
590
580
570
560
550
540
560
550
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
770
770
760
770
790
780
840
780
770
670
680
690
700
710
720
730
740
750
760
770
780
790
730
740
750
760
770
780
800
790
710
700
690
680
670
660
650
640
630
620
610
600
590
580
570
650
640
660
630
620
730
740
750
770
760
780
790
800
810
830
820
840
850
860
870
880
900
890
910
920
930
940
950
960
970
980
990
1000
1020
1010
1000
990 980
970
960
950
940 930
920
910
900 890
880
870
860
850 830 840 820
810
710
720
730
740
750
760
770
780
790
800
810
820
830
840
850
860
870
880
810
820
830
680
670
690
870 860
850 840
830
820 810 800
790
780
770
760
750 740
730
880
770 760
780
790
800
810
820
830
750
750
760
770
780 790
800
810
820
830
840
850
860
870
880
890
900
910
920
930
940
950
930
940
950
960
970
980
990
1000
1010 1020
1030
1040
1050
920
910
900
700
710
720
730
740
750
760
770
890
880 870 860
750
780
860
850
850
840
830
820
790
780770
760
810
840
830
820
810
800
790
780
770
760
750
850 860
870
880
750
760
770
780
790
800
590
580
570
600
610
620
630
600
590
700
690
680
670
660
650
640
630
620
610
600
650
660
560
570
580
590
550
600
610
620
630
640
650
660
640
630
620
610
600
590
580
650
720
910
950
880
870
710
720
730
600
610
620
630
590
640
650
660
670
680
450
670
530
540
550
560
570
580
590
600
610
620
630
640
650
660
680
670
690
700
710
720
730
740
750
760
770
780
790
800
810
820
830
840
850
860
820
810
800
790
780
770
760
750
740
730
720
710
700
690
680
670
660
650
640
630
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470
460
450
450
550
540
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740750
760
770
780
790
800
810
820
830
840
850
860
870
880
890
570
580
590
600
610 620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
770
780
790
800
810
830
840
820
670
910
800
860
860
870
960
950
940
930
920 910
900
900
890
880 870
860 850
840
830
820
810
800
790
780
770 760 750
740
730 720
710
700
690
680
670
680 690
700
710
720
730
720
710
700
690
680
670
660
650
640
630
620
610
600
590
660 670 680
690
690
700
650
640
710
720
730
740
750
760
770
780
790
790
780
800
770 780
790
800
810
820
830
840
850
860
870
880
890
900
850
840
830
820
810
800
790
780
770
760
750
740
730
720
710
700
690
680
670
660
650
640
630
790
800
810
820 830
840
780 790
780
770
760
750
740
730
720
710
700690680670
660650
640 630
680
760
680
650
660
670
670
660
790
800
810
820
830
840
850
860
860
850
840
830
820 810
800
790
780
760
780
790
770
530
520
540
530
520
550
560
570
500
510
480
470
460
450
460
460
450
460
450
500
530
480
460
450
460
620
500
510
530
530 520 510
500
490
480
480
470
460
490
500
510
520
530
540
550
560
570
580
570
560
550
540
530
520
510
520
530
540
460
550
560
550
540
500 490
470 480
460
610
600
590
490
500
490
510
510
510
520
520
500
520
530
540
550 560
570
580
590
600
610
610
600
590
580
560
580
660
650
640
630
620
620
610
600
590
580
570
580
590
600
590
580
570
560
550
570
620
580
590
600
610
620
620610
600
590 580
570
560 550
540
540
530
520
530
570
580
590
600
610
620
630
640
650 660
560
550
540
500
490
500
510
520
530
470
470
480
480
570
560
550
540
530
520
510
500
490
480
480
480
490
500
510
520
530
540
550
560
570
580
590
590
580
590 600
610
620
630
640
690
680
670
660
650
700 710
720
710
700
690 680 670660
650
640
630
620
610
610
790
800 820 810
830
820
810
800
790
780
770
760
750
620
630
640
650
660
670
680
690
700
710
730
720
740
560
510
570
560
550
540
530
520
510
510
520
530
540
550
560
500
490
490
500
510
520
530
540
550
560
570
580
590
600
610
62 630
0 640
520
530 540
550
560
570
580
590
600
610
620
630
640
510
510
510
500
500
510
520
530
540
550
560
570
580
590
600 610
620
520
510
520
530
540
550
560
570
730
450
660
650
680
670
620
610
600
590
580
630
640
650
660
670
570
560
550
540
530
520
510
500
490
470
480
490
500
510
520
530
540
550
560
570
580
590
600
610
620
630
460
500
640
630
640
650 660
670 660
650
630
640
650
660
670
680
660
680
670 660
650 640
630
620
610
600
590
580
560
560
570
570
650
660
670
580
590
600
610
570
580
590
600
610
620
630
640
650
660
670
680
700 690
710
720
730
740
750
760
790
770780
710 700
690 680
670
660
730
720
740
750
760
770
780
790
800
810
820
830
820
810
800
790
780
770
760
750
740
730
720
710
700
690
680
670
660
650
630
620
640
630 640
650
660
670
680
670
680
620
620
630
640
780
790780770 760 750
730
740
720
710
700
770
690680
670
670
690
700
710
720
730
780
770
400
400
400
425
450
425
600
425
425
425
450
425
450
450
450
425
475
500
475
450
425
400
525
500
475
450
425
800
800
450
625
775
850
850
750
675
500
525
650
650
650
675
650
650
650
650
650
500
475
450
425
475
625
700 700 700
700
625
625
675
650
650
625
650
625
625
625
825
850
875
850
825
500
475
525
550
575
400
525
550
575
600
625
650
625
650
675
700
725
750
775
800
825
850
875
900
925
950
625
775
750
725
700
675
650
625
600
800
825
850
825
525
500
500
525
550
575
600
625
650
675
700
725
750
775
750
450
475
500
450
500
525
550
575
600
650
625
625
650
650
650
675
700
725
750
875
850
825
800
775
750
725
700
675
650
650
775
800
825
850
825
800
700
675
700
725
750
775
800
700
725
675
650
650
675
700
725
750
775
800
825
725
625
475
500
525
550
550
550
550
575
625
525
550
575
600
625
650
675
675
650
625
600
625
575
625
625
625
825
800
775
750
725
700
675
650
700
675
525
550
525
550
575
600
475
500
450
450
450
540
550
575
625
500
500
450
410
450
475
425
450
475
450
425
425
425
440
625
630
710
690
700
680
675
70 725
0 690
660
670675
650
640
630
670
660
64 650
0 630
625
600
530
525
510
500
530
530
520 510
525
480 490
470
460
450
450
450
440
450
475
475
500
500
425
400
380
390
410
450
475
675
980
970
960
950
940
930
920
910
900
890
880
870
860
850
840
830
820
810
800
1130
740
730
720
710
700
690
580
750
770
860
800 810
890
840
910
1050
1060
1060
960
970
960
820
830
790 780
650
570
580
570
600
590
580
570
560
550
540
580
590
840
740
730
720
710
690
590
610
6 590
00 830
820
810
800
790
800
810
820
830
840
850
860
870
880
900
890
910
920
930
940
950
960
960
380
410
510
420
1100
1050
950
850
750
650
550
650
750
800
950
1050
600
700
800
900
1250
1150
1050
950
850
750
750
850
850
750
650
1100
1200
1300
1350
1250
750
850
950
1050
350
850
750
800
900
1000
900
800
700
800
CENTER
COMMUNITY
78" CSP
72" CSP
42" CSP
60" RCP/CSP
2x4'x3' RCB
4'x4' RCB
4'x4' RCB
60" RCP
60" RCP
60" RCP
60" RCP
60" RCP
3x10'x12' RCB
18" RCP
SR - 241
SR - 91
S A N T A A N A R I V E R
36" RCP 54" RCP
(Existing) (Proposed)
GYPSUM CANYON
ROAD
SANTA ANA CANYON ROAD
WEIR CANYON ROAD
PRIVATE
2 416.
2.4 4
.5
410
4 490
87 87
2 46
57 58.4
46 4 9.3
416.6
0 5
417.4
417.9
419.0 420
3 419 0
417.6
419.0
425.1 417.1
418.2
417.2
419.6
418.
415.6 419.6 415 6 419 6 4
420
415 6
42 415.6
417.1
0 R ks 418.8420
20 41
415.7 0 42
2 42
42 5 1
4 415.2
414.8
417.4
412.6
Rocks
416.7
410.8
411.6
410.8
410.6
4 4
410
403.0
410.6
0 409.3 409.6 410
409.9 11.3 410
4 0.9
40 4
400 400
399.3
4 0
0 40400.
409.6 4 .0
0 40 980
400
4 Roc
04 401.1
R
409.0
11.1 398
410
397.6
640
4 .5
457.4
451.5
460
.8
452.9
490
502.6
502.5
0 50
874.3
874 8.
875
879.2
879.3
879.3
484.2
500
490
5 0
510
00 520 530
532.9
530 531.9 533.9
532.5 523.1 532 5
53 533 8. 530
62 90
260
610
6 61
20 6
600
590
60 6.4
460
870
875
885
890
895
900
905
910
915
915
905
910
900
885
880
917.83
880
870
875
880
882.65 BVC
885
890
900
905
910
897.16 PVI
907.83 EVC
BVC
915
915
905
916.13 PVI
885
910
HI-LOW 917.83
900
895
880
B
B B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B B
B
10+00
15+00
20+00
25+00
30+00
PC = 13+22.43
PT = 26+60.28 PC = 26+70.28
24+46.63
R=1600'
R=7000'
R=7000'
485
TRAN. 2.:1
TO 2.5:1
2.5:1
TRAN. 2.:1 TO 2.5:1
R=1935
66 65
64 63
62 R=100 65
64 63
62 61 R=2600
R=650
R=140
LEGEND
(MAINTENANCE ALLOWED)
WATER QUALITY BASINS
RESTORATION AREA
PROPOSED DRAINAGE BOUNDARY
EXISTING STORM DRAIN
(NO MAINTENANCE ALLOWED)
PROJECT BOUNDARY
PROPOSED HIGH FLOW STORM DRAIN
VEGETATED DRAINAGE SWALE
PROPOSED BYPASS STORM DRAIN
PROPOSED LOW FLOW STORM DRAIN
ENERGY DISSIPATOR
GYPSUM CANYON CREEK & TRIBUTARY FLOW LINES
FLOW LINES
CITY OF ANAHEIM LIMITS
LANDSCAPED
MANUFACTURED SLOPES
PAD AREA
PROPOSED CALTRANS
WATER QUALITY FACILITY
Source:
Scale: 1" = 1000'
Proposed Drainage System Exhibit 3-9
Mountain Park Specific Plan Amendment EIR No. 331 March 11, 2005 Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-15 Project Description The proposed project’s storm drain system would result in approximately eight primary discharge points that would alter the drainage patterns to existing natural drainage courses within the project site. In conjunction with the preparation of storm drain improvement plans, countermeasures for the potential environmental impacts to the natural drainage courses for each primary discharge point would be accomplished by the design of the outlet structures. The outlet structures transition high-velocity piped flows into non-erosive open channel flows for the protection of downstream habitats and channel stability. The outlet structure design and the area within the influence of the increased flow would include a series of countermeasures to reduce velocities, including brooks boxes, baffle boxes, wing walls, rip rap (grouted or river rock), vegetative check dams, reinforced vegetative mats and/or grade control structures. The length and width of the outlet countermeasures would vary dependent upon the natural characteristics of the downstream channel. Therefore, drainage facilities design for postdevelopment runoff condition would be transitioned into the natural environment in a manner that would be the same or similar to existing conditions to avoid impacts to the natural drainage courses and habitat.
Gypsum Canyon Watershed
To accommodate increased peak flow rates from the project in the Gypsum Canyon watershed and to eliminate existing flooding conditions, the proposed project includes modifications to the existing triple cell 12-foot by 10-foot reinforced concrete box (RCB) culvert that conveys runoff from Gypsum Canyon to the Santa Ana River. Under existing conditions, the inlet of the box culvert restricts the passing of flows to 3,500 cubic feet per second (cfs), which is equivalent to a flood protection level for a 15-year storm event. The proposed storm drain improvement plan would extend the existing Gypsum Canyon Road/SR-91 box culvert inlet structure approximately 1,500 feet upstream following the existing alignment of the creek. At this location, the proposed Gypsum Canyon Road would be designed to serve as an impoundment to retain storm water runoff up to approximately 17 feet, which produces sufficient hydraulic head to convey stormwater from a 100-year storm event through the existing culvert and into the creek and the Santa Ana River via Featherly Regional Park. The elevation difference between the flow line of the culvert inlet and the top of the road is expected to be 20 feet, allowing for a freeboard of three feet. Approximately 300 feet of the proposed 1,500 foot extension of the box culvert would occur within Caltrans right-of-way and would require an encroachment permit.
There are three existing culverts within this watershed that collect flows and pass under SR-241. Proposed modifications to these facilities are described in Section 3.3.5, Caltransrelated Project Features. There are also three existing culverts that collect flows and pass under SR-91 in addition to the triple box culvert discussed above. The three culverts along the SR-91 will not be altered or require any improvements with the proposed project. The existing 72-inch corrugated steel pipe (CSP) that drains underneath the SR-241 would be abandoned and replaced with a 54-inch RCP to accommodate grading modifications to the tributary areas.
Several of the smaller collections systems draining into this culvert would be modified. The existing SR-241 42-inch CSP outlet structure and its associated collection systems would also be modified to accommodate the proposed grading within Gypsum Canyon.
West Drainage Area
The proposed project storm drain facilities for Development Areas 3 and 7 would connect to existing facilities that drain the Summit of Anaheim Hills property west of the project site. These facilities have sufficient capacity to accept runoff from the two proposed Development Areas.
An existing 66-inch reinforced concrete pipe (RCP) primarily drains the Summit of Anaheim Hills project and the upstream natural drainage areas west of the project site. This storm drain line is Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-16 Project Description sufficient to accommodate the runoff from Development Areas 3 and 7, west of SR-241. An undersized 36-inch RCP that currently collects off-site runoff from the undisturbed slopes draining into The Summit would be upsized by the project to the capacity of a 54-inch RCP that would convey the project flows into the existing 66-inch RCP, refer to Exhibit 3-9.
East Drainage Area
The east drainage area consists of two primary drainage facilities that collect runoff from the two sub-areas that drain either north to the SR-91 or northeast towards the direction of Coal Canyon and the SR-91. These facilities include a 60-inch RCP and a 5-foot by 5-foot RCB. The proposed project would not involve any development within the post-condition drainage boundaries and no alterations to these facilities or infrastructure improvements are required for the east drainage area.
Freeway Drainage Areas
Within the influence of the Mountain Park project site, there are three freeway drainage areas that also collect runoff from the northern portion of the project site and off-site areas and deliver flows to the Santa Ana River. These include the SR-91/SR-241 drainage area, the SR-91/ Gypsum Canyon Road drainage area and the SR-91 frontal slope drainage area. No modifications to the existing drainage facilities within these freeway drainage areas are necessary.
x SR-91/SR-241 Area – This drainage area collects runoff into a series of improved storm drain systems from on-site and off-site areas adjacent to the SR-241 connection with the SR-91 and delivers flows to the Santa Ana River under Santa Ana Canyon Road. x SR-91/Gypsum Canyon Road Area – This drainage area is located to the north of the Gypsum Canyon watershed boundary but contains portions within the project boundary.
This drainage area collects flows from the freeway system and existing Gypsum Canyon Road and connects into the triple box culvert that drains Gypsum Canyon. x East SR-91 Frontal Slope Area – This drainage area is located between Gypsum Canyon watershed and the SR-91 and includes two improved concrete culverts to collect runoff from the SR-91 frontal slopes and convey runoff under the freeway to the Santa Ana River.
Each of these freeway drainage areas either has the capacity to accept minor increases in runoff from proposed roadway improvements or would undergo decreases in runoff due to reductions in drainage areas and therefore, no modifications to the existing drainage facilities are necessary. In addition, there are no natural drainage courses or habitat areas within these freeway drainage areas that would be affected by the reduction in runoff.
Water Quality Basins
In addition to proposed storm drain facilities described above, the proposed project would include an urban runoff water quality treatment system to treat dry weather flows (i.e., irrigation runoff) and low flows (“first flush”) from small and large storm events. Each development area within the proposed project would include an off-line (flow-by) water quality basin to collect, filter, and discharge treated low flow runoff prior to discharging from the project site. Proposed water quality basin locations are depicted on Exhibit 3-10. The water quality basins would be designed to adequately treat the volume of water associated with the 85th percentile 24-hour storm event based on the water quality design requirements of General Waste Discharge Requirements (WDRs) and National Pollutant Discharge Elimination System (NPDES) Legend
Water Quality Basin
Water Tank
City of Anahem Limits
Mountain Park Project Site
Drainage Boundary
WQ Basin Treated Area
WQ Basin \ Bio-swale Treated Area
Filter Strip \ Bio-swale Treated Area
Proposed Land Use Type
Man-Made Slope
Street
Park
SFD
School
Fire Station/Trail Head
Private
Community
Center
Treated by
Filter Strip
or Bio-Retention
Treated by
WQ Basin #5b
Treated by
WQ Basin #5a
SR 241
SR 91
Caltrans
Basin
Santa Ana Canyon Rd
Gypsum Canyon Rd
Weir Canyon Rd
#2
#1
#3c
#3b
#3a
#4b #5b
#4a
#5a
Watershed Key Map
Existing Drainage Boundary
Drainage ID
E
F
I
W
Map: Runoff Management Plan, Fuscoe Engineering, 2004
W
167
F
330 E
310
I
274
Proposed Water Quality Implementation Plan Exhibit 3-10 Mountain Park Specific Plan Amendment EIR No. 331 March 11, 2005 Source:
SCALE: 1" = 2000'
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-17 Project Description Municipal Separate Stormwater Sewer System Permit for Orange County and Northern Cities (MS4 Permit), the Orange County Drainage Area Management Plan (DAMP), and the City of Anaheim Local Implementation Plan (LIP). The water quality basins would be maintained by the Homeowner’s Association.
The treated water from the basins would be either discharged back into a main storm drain line or discharged directly to Gypsum Canyon Creek or a local tributary. Discharges returned to main creek or tributaries would include scour protection measures at the outlet to prevent local scour and erosion. The off-line basins or flow-by basins would be designed only to receive flows of small storm events (i.e., less than two-year frequency) or the initial flows of larger storm events. The “first flush runoff” of the flows would be delivered to the basins by incorporating splitters into the proposed storm drain system. These splitters would act as small weirs that divert the low flows to the basin while bypassing the larger flows that would remain within the main storm drain lines. The separation of the low flows from the high flows allows for the runoff with the greatest potential for contaminants to be treated by the water quality basins located throughout the development areas.
The water quality basins would incorporate extended detention to provide water quality treatment for storm flows. Extended detention basins are designed with outlets that detain the runoff volume from the water quality design storm (e.g., the 85th percentile 24-hour event) for some minimum time (in this case, 36 hours) to allow particles and associated pollutants to settle out. The water quality basin would also incorporate the use of wetland vegetation for the treatment of dry weather flows and small storm events. Wetland vegetation within the basin is among the most effective methods for pollutant removal. As runoff flows through the basin, pollutant removal is achieved through settling in the basin and biological uptake of nutrients and dissolved pollutants within the wetland vegetation. These basins are not designed or anticipated to contain ponded, standing water for periods in excess of 36 hours. Therefore, the detention basins would not pond water after storm flows have been treated, thereby avoiding vector issues. The basins may have small dry weather flows through the basin bottom area or the low flows may infiltrate into the soils of the basin bottom.
Site Design Best Management Practices (BMPs)
Site design BMPs are practices designed to minimize runoff and the introduction of pollutants in storm water runoff. Site design principles that would be included in the Mountain Park project are described in Section 4.5, Water Quality, and include the following:
x Minimize Impervious Area and Impervious Areas Directly Connected to Storm Drains x Selection of Construction Materials and Design Practices x Conserve Natural Areas
x Protect Slopes and Channels
x Structural and Non-Structural Source Control BMPs
Water System
The project site is on the eastern edge of the City of Anaheim’s service area and there are no existing City of Anaheim water service facilities within the site. Existing facilities west of the project site within The Summit of Anaheim Hills, Highlands, and Sycamore Canyon communities would be utilized as connection sources for proposed project water facilities. The proposed Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-18 Project Description Development Areas range in elevation from 400 feet to 940 feet amsl and extend across three of the City of Anaheim’s existing pressure zones (elevations 750, 900 and 1120).
A water system Sub-Area Master Plan (SAMP) has been prepared for the project and describes the transmission and delivery systems required for the proposed project. The SAMP identified two water supply scenarios for the proposed project; Alternative 1A is described herein and analyzed in this Draft EIR. The proposed water system plan for the project is depicted on Exhibit 3-11. The specific design and location of water facilities would be reviewed as part of subsequent plan approvals (i.e., tentative tract maps).
Based on the SAMP, the primary water supply for the project would be provided through an extension of the 24-inch Santa Ana Canyon Road 750-foot elevation zone transmission main (connection at Santa Ana Canyon Road/Woodcreek approximately 1.5 miles west). A portion of an existing 20-inch main along Santa Ana Canyon road may also need to be increased to serve the project. Water lines ranging from 12 to 24 inches would be installed within the project site to distribute water to proposed uses. The project would also involve the construction of three domestic water storage reservoirs: a 750-foot zone reservoir in the eastern portion of Development Area 5; a 900-foot zone reservoir in the southern portion of Development Area 1, and a 1,320-foot zone reservoir south of Development Area 7. The 1,320-foot zone reservoir would provide water storage capacity to serve both the proposed project and other portions of Anaheim’s Hill and Canyon area. Service to the 1,120-foot zone areas of the project would be provided by the 1,320-foot zone reservoir through a pressure reduction facility. Per City standards, telecommunication/fiber optic circuits would be installed to serve the communication needs of the electric, water and municipal facilities within the development site.
The water reservoirs would be closed tanks made of reinforced concrete or steel and would be located and designed in a way that they are screened from view by most of the residents of the proposed project. One or more of the following techniques may accomplish this:
x partially burying the reservoir,
x berming or filling around the perimeter of the reservoir, and/or x landscaping which is compatible in appearance with the adjoining natural open space areas.
The primary water storage and distribution to serve the proposed project would be from the proposed 750-foot zone reservoir in the eastern portion of Development Area 5. An on-site water pump station located at the proposed 750 Zone Reservoir site (refer to Exhibit 3-11) would be required to convey water to the proposed 900-foot zone reservoir. Pumping for the 900 and 1120 Zones would be provided by upgrading the capacity of two existing off-site pump stations (Weir Canyon 900 Zone and Summit 1120 Zone). The final design for the pump stations would be determined during preparation of the final design plans for the water system, and it is expected that each would be above ground and located at the respective existing facility site. The proposed on-site water pump station and proposed upgrades of the existing off-site pump stations would be designed to minimize operating noise, and acoustic louvers would be installed. The new water pump station building would be screened from the view of proposed residences with landscaping and/or a wall. Redundant water supply is needed in the event of an outage of primary supply and would be provided through connections to the City’s existing 900 Zone (connection at Oak Canyon Drive) and proposed 1120 Zone facilities (connection at Weir Canyon Road).
Irrigation systems would be controlled by automatic programmable irrigation controllers that utilize California Irrigation Management System (CIMIS) Data to adjust water times and durations based on daily evapotranspiration (ET) data. Community-wide irrigation control would
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-19 Project Description be provided by a centralized irrigation control system designed to separately valve hydrozones based on plant water requirements, exposure and terrain characteristics. High impact areas such as functional turf areas and community entries would utilize conventional spray irrigation systems. Community edges and open space transition areas would utilize low flow point irrigation systems such as bubblers or drip irrigation. Fuel Modification areas would be conventional spray systems as required for fire protection. All systems would utilize matched precipitation rate nozzles and emitters for precise water application, adjustable low angle nozzles to reduce overspray, check valves to reduce low head drainage, and master valves to minimize water loss in the event of a line break or valve malfunction.
Sanitary Sewer System
Sanitary sewer service for the proposed project would be provided by the City of Anaheim. The proposed sanitary sewer system for the project is depicted on Exhibit 3-12. The proposed onsite sanitary sewer facilities consist of sewer mains ranging in size from eight inches to 12 inches. The sewer flows from the project site would be divided into two service areas: the Gypsum Canyon area east of SR-241 (Development Areas 1, 2, 4, 5, and 6), and the area west of SR-241 (Development Areas 3 and 7).
The sanitary sewer system consists of on-site facilities (within the project site) and off-site connections to existing sanitary sewer facilities. On-site sewer facilities are described below, and off-site sewer connection options for the west and east basins are discussed in Section
3.3.4, Off-site Project Features. The proposed sewer system is based on the Sewer Study prepared for the project (included in Appendix N to this EIR). The sewer study addresses numerous options for conveyance of sanitary sewer wastewater flows off-site. The City of Anaheim has selected options to be addressed in this section and Section 4 of the EIR, and the remaining options are addressed in Section 5, Alternatives. All of the sewer options are provided for in the Specific Plan and are fully analyzed in this EIR. As discussed in Section
4.12.5, Sanitary Sewer, the sewer option that would ultimately be constructed will be determined prior to approval of the first tentative tract maps for east and west basin development areas.
The references to sewer connection options provided in this EIR are numbered consistent with the sewer study; however, for clarification west and east basin options are referred to with a “W” and “E” as appropriate.
East Basin
Sanitary sewer flows from proposed uses east of SR-241 (residential development areas, private recreation center, fire station, trailhead staging area, and store concession/interpretive center) would drain by gravity flow northerly generally to the intersection of Gypsum Canyon Road and Santa Ana Canyon Road. At this collection point, the project sewage flows would be conveyed by gravity flow from the Gypsum Canyon service area out of the development to a Santa Ana River Interceptor (SARI) connection point. The off-site sewer connection option is described in Section 3.3.4, Off-site Project Features.
West Basin
Based on current phasing sequences planned for the project, the west basin Development Areas would be developed prior to the east basin Development Areas, and east basin sanitary sewer infrastructure would not be in place and available to receive west basin sanitary sewer flows. Therefore, a gravity line sanitary sewer option has been identified to distribute west basin sanitary sewer flows into existing sewer infrastructure within The Summit of Anaheim Hills residential community. Under this option, flows from Development Area 7, the school site and park would be conveyed in an 8-inch gravity line north on Mountain Park Drive to the Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-20 Project Description intersection of Mountain Park Drive and Development Area 3 where sewage from Development Area 3 would be added. All flow would then be conveyed back to Weir Canyon Road and then off-site (refer to Section 3.3.4, Off-site Project Features). Additional sewer options for flows to be directed to the west, including a temporary force main with sewer lift station, are discussed in Section 5, Alternatives. If a temporary force main sewer option for west basin sanitary sewer wastewater flows is implemented, ultimately flows from proposed land uses west of SR-241 (residential Development Areas 3 and 7, school, park, and gated entry structure) would be conveyed north and east on Mountain Park Drive within an 8-inch sewer gravity main to the planned Mountain Park Drive bridge overcrossing (described as Alternative W-1 in the Mountain Park Project Sewer Study). Flow would cross the bridge in an 8-inch pipe contained within a utility cell constructed inside the bridge and then would continue east in Mountain Park Drive and join east basin sewer facilities near Development Area 4.
Electric and Telecommunications
The City of Anaheim Public Utilities Department would provide electric power to the project site.
There are currently no City services on the project site. The Public Utilities Department currently serves The Summit of Anaheim Hills, Sycamore Canyon, the Highlands at Anaheim Hills, the East Hills residential developments, and the Festival Shopping Center, which are located south of the SR-91, west of the project site. Electric service to these developed areas is currently provided by the Fairmont Substation. Robertson’s Ready Mix Plant has electricity served by Southern California Edison via overhead lines along Santa Ana Canyon Road.
Portions of the electric lines are underground at the interchange of SR-241/SR-91.
Plans are provided in the Five-Year Electric System Plan for a new substation to be located near the intersection of Roosevelt Road and Monte Vista Road in the East Hills Area and for the extension of 12kV electrical distribution and telecommunication circuits into, through and out of the project site, and for the electrical distribution and telecommunication circuits within each Development Area to individual residential, commercial and other public and private facilities where required. The telecommunication circuits would primarily serve the communication needs of the electric, water and municipal facilities within the development site.
The existing 12kV circuit would be extended from near the intersection of Weir Canyon Road and Oak Canyon Drive to and within the private streets in Development Areas 3 and 7. A new distribution and telecommunication circuit would be installed from the new substation and routed south in Weir Canyon Road to the private streets in Development Areas 3 and 7. Both of these distribution and telecommunication circuits would also be routed through the proposed Mountain Park Drive bridge overcrossing. These two electrical distribution and telecommunication circuits would be routed in private streets between and within Development Areas 1, 2, 4, and 5 located on the east side of SR-241 (refer to Exhibit 3-13).
Additionally, two new electrical distribution and telecommunication circuits would be installed from the new substation and routed east in Santa Ana Canyon Road to and within the private streets in Development Areas 1, 2, 4, and 5. The two electrical distribution and telecommunication circuits in Santa Ana Canyon Road and the two in Weir Canyon Road would be interconnected as a looped system within the development areas. Precise routing of the electrical distribution and telecommunication circuits and locations of the interconnections would be determined during the subsequent plan approvals. All extensions of existing and new electrical distribution and telecommunication circuits would be located underground.
Pursuant to the easement agreement between SCE and the property owner, subsequent to the closure of the Robertson’s Ready Mix Plant, SCE would be responsible for the removal of overhead power lines serving Robertson’s. As part of the proposed project, approximately Weir Canyon Rd.
Santa Ana
Canyon Rd.
Connection to SARI line
in Savi Ranch
Gypsum
Canyon Rd.
Riverside Freeway (SR-91)
Featherly
Regional Park
Santa Ana River
)142- RS( r o idrr oCn iot tar ops narT nr ets aE
S
CP
DA5
DA4
DA3
DA7 DA1
DA2
THIS IS A GRAPHIC REPRESENTATION OF A PLANNING
ENGINEERING CONCEPT. FINAL DESIGN SOLUTIONS
NOTE:
AND PRECISE LOCATION FOR THESE FACILITIES WILL BE
PROPOSED AND REVIEWED AS PART OF SUBSEQUENT
PLAN APPROVAL.
City of Anaheim
City of Anaheim
F
DA6
County of
Orange
(City of Anaheim
Sphere-of-Influence)
Not To Scale
Sanitary Sewer System Plan Exhibit 3-12
Mountain Park Specific Plan Amendment EIR No. 331
Source:
Legend
DA
Low-Medium Hillside Density Residential
Low-Medium Density Residential
Open Space
Institutional
Development Area
School
Fire Station
Community Park
Toll Road Overcrossing
Toll Road Interchange
City of Anaheim Limits
S
CP
F
Direction of Flow
Sewer Line
Off-Site Sewer Main
Optional Sewer Line Connection
Existing S.A.R.I. Trunk Sewer
Existing Sewer Line
Upgrade Existing Sewer to 10"
March 11, 2005
Oak Canyon Dr.
Oak Canyon Dr.
Santa Ana
Canyon Rd.
Gypsum
Canyo
n Rd.
Riverside Freeway (SR-91)
Featherly
Regional Park
Santa Ana River
)142- RS( r o idrr oCn iot tar ops narT nr ets aE
S
CP
DA5
DA4
DA3
DA7 DA1
DA2
THIS IS A GRAPHIC REPRESENTATION OF A PLANNING
ENGINEERING CONCEPT. FINAL DESIGN SOLUTIONS
NOTE:
AND PRECISE LOCATION FOR THESE FACILITIES WILL BE
PROPOSED AND REVIEWED AS PART OF SUBSEQUENT
PLAN APPROVAL.
City of Anaheim
City of Anaheim
County of Orange
(City of Anaheim
Sphere-of-Influence)
Weir Canyon Rd
F
DA6
Not To Scale
Dry Utilities Plan Exhibit 3-13
Mountain Park Specific Plan Amendment EIR No. 331 March 11, 2005 Legend
School
Fire Station
Community Park
Toll Road Overcrossing
Toll Road Interchange
S
CP
F
DA
Low-Medium Hillside Density Residential
Low-Medium Density Residential
Open Space
Institutional
Development Area
Questar Pipeline
Proposed Main Gas Pipe
Proposed Telephone / Cable
Existing Circuit in Existing Ductbank
Proposed New Circuit in Existing Ductbank
New Electrical Substation being constructed by City
Proposed Underground 12KV Distribution Circuits
City of Anaheim Limits
Source:
22+0020+00 21+00
2+00
1+00 0+00
4+00
3+00
9+00 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 25+00 24+00 23+00
33+00 32+00
31+00 30+00 29+00 28+00 27+00 26+00
41+00 40+00 39+00 38+00 37+00 36+00 35+00 34+00
48+00 47+00 46+00 45+00 44+00 43+00 42+00 49+00 50+00 51+00 52+00 53+00 54+00 55+00 56+00 57+00 58+00 59+00 60+00 61+00 62+00 63+00 64+00 64+19.03 64+19.03
6+00 5+00
7+00 8+00
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-21 Project Description 1,600 feet of SCE and SBC Pacific Bell utility lines along Santa Ana Canyon Road within the project site would be undergrounded.
In general, new and extended electrical distribution and telecommunications circuits would be installed in city streets. Where installations are required in private streets, easements to the city for construction, maintenance and operation of the system would be provided.
Natural Gas
Natural gas would be provided to the project site by Southern California Gas (SCG) from two existing pipeline interceptors. The first is located at the intersection of Santa Ana Canyon Road and Gypsum Canyon Road, the second is located at the intersection of Oak Canyon Drive and Weir Canyon Road. Within the project site, a sole gas trench would be constructed and an 8-inch gas pipeline would be installed along Gypsum Canyon Road to serve Development Areas 1, 2, 4, and 5. Development Areas 3 and 7 would be served by an 8-inch natural gas pipeline installed in a sole gas trench extending from Weir Canyon Road. Proposed natural gas facilities are shown on Exhibit 3-13. Specific details regarding pipeline dimension, location on the street, and buried depth would vary from location to location and would be determined by SCG.
Telephone
Local telephone service to the project site would be provided by SBC Pacific Bell via its remote center at the intersection of Weir Canyon Road and Santa Ana Canyon Road. Enhancement and/or extensions of existing telephone facilities along Santa Ana Canyon Road and Weir Canyon Road would be required to serve the proposed project (refer to Exhibit 3-13). Existing overhead facilities along Gypsum Canyon Road would be temporarily relocated to allow for grading and installation of the new underground system. The proposed project includes undergrounding approximately 1,600 feet of existing overhead lines along Santa Ana Canyon Road within the project site from Gypsum Canyon Road to the southbound on-ramp to SR-241 from SR-91 (note that this improvement area is shown later in this section on Exhibit 3-20, Project Impact Analysis Map).
Cable Television
Cable television and internet services within the project site would be provided by Adelphia Communications Company. There are two existing service pick-up points in the vicinity of the project site: Oak Canyon Drive/Running Springs Drive, and Santa Ana Canyon Road/ Woodcreek Road. Cable television conduits would be installed in sole trenches from pick-up points to the development area entrances and would be in joint trenches (shared with other utilities) along with the electrical and telephone conduits for distribution within the Development Areas (refer to Exhibit 3-13).
Southern Trails Pipeline Relocation
The proposed project would involve relocation of the existing Southern Trails Pipeline (formerly referred to as the Four Corners Pipeline). The Southern Trails Pipeline owned by the Questar Corporation traverses the northern portion of the site in an east-west direction (refer to Exhibit
4.10-1, Areas of Environmental Concern, in Section 4.10, Hazards and Hazardous Materials).
The pipeline is an interstate facility that originates in Long Beach, California and extends to Farmington, New Mexico. The pipeline is a 16-inch steel facility. It is not currently in operation; however, it is maintained by Questar and is charged with nitrogen to maintain pressure in the line. Questar has plans to convert the pipeline from oil products transmission to a high-pressure Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-22 Project Description natural gas line. Conversion of the pipeline is dependent on market conditions, and is not currently scheduled.
As part of the proposed project, approximately 1,800 feet of the existing pipeline that traverses the site would be replaced with approximately 1,935 feet of new pipeline. The pipeline would be installed between four and ten feet below ground surface in open space or under proposed private streets and would occur during project grading. Installation of the pipeline would be completed in stages, consistent with the phasing of the project.
Landscape and Lighting Concepts
Landscape Concept
Mountain Park is a unique community of individual neighborhoods set within significant natural open space. Each neighborhood is distinguished by its particular topographic and native plant community setting and tied to the larger community by unified streetscapes and open space corridors. The overall landscape concept consists of five categories depicted on Exhibit 3-14a, Landscape Concept Plan, and described as follows:
x Open Space. Ungraded natural open space and topography, where native vegetation will be preserved, thinned or restored.
o Fuel Modification Area. Ungraded slopes in zones b, c and d, which are subject to any combination of vegetation thinning and/or irrigation as provided in Section II.D.2 (Fuel Modification Areas) of the specific plan and Exhibits 3-15a and 3-15b. x Manufactured Slopes. These perimeter slopes, as shown on Exhibit 3-14b, shall be planted with native trees, shrubs and annuals to the extent feasible. The intent is to restore and manage these slopes as naturalized open space with associated savings of water and maintenance. Wherever manufactured slopes are coincidental with Fuel Modification Areas, the plant species and spacing shall adhere to Anaheim Fire Department requirements. Each Homeowners Association which is responsible for maintaining manufactured slopes shall be required to follow a slope maintenance manual prepared by the property owner/developer in accordance with approved landscape plans.
o Show Slopes. Manufactured slopes visible from external state highways; adjacent residential neighborhoods; arterial highways; public streets serving the community park and school; and adjacent to the private community entries. o Community Slopes. Manufactured slopes with elevations higher than adjacent Internal Collector Street Scenes.
o Living Area Slopes-Downhill. Manufactured slopes with elevations lower than adjacent Internal Collector Street Scenes.
o Living Area Slopes-Neighborhood. Manufactured slopes internal to a neighborhood, between residential lots or along internal streets. o Transition Slopes. Manufactured slopes adjoining natural open space. o Fuel Modification Areas. Manufactured slopes comprising Fuel Modification Areas. )142- RS( r o idrr oCn iot tar ops narT nr ets aE
Oak Canyon Dr. Weir Canyon Rd.
Santa Ana
Canyon Rd.
Riverside Freeway (SR-91)
Gypsum
Canyon Rd.
City of Anaheim
City of Anaheim
County of Orange
Open Space
Ungraded Fuel Modification Areas
Manufactured Slopes
Residential Neighborhoods
Gypsum Creek
Restoration Area
Major Streetscape
Reservoir
City of Anaheim Boundary
Legend
Not To Scale
Landscape Concept Plan Exhibit 3-14a
Mountain Park Specific Plan Amendment EIR No. 331
Source:
March 11, 2005
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-23 Project Description x Gypsum Creek. Slopes in the Gypsum Creek Open Space Corridor abutting residential edges would transition in landscape character to more ornamental, evergreen species in densely planted composition to perform a buffering and screening function from the greater corridor setting. Predominant tree species would include Coast Live Oak, Pine species and California Pepper. Predominant shrub species would include Toyon, Rhus, Coyote Brush, Arbutus and Pittosporum.
x Restoration Area. Drainage area within Development Areas 2 and 5 shall be restored.
The area currently consists of an unnamed drainage, which is tributary to Gypsum Canyon Wash. A drainage would be re-created. Vegetation within the drainage would be restored to a mule fat scrub and mule fat scrub/oak woodland community. x Streetscapes. The Mountain Park streetscapes will comprise informal clusters of trees with meandering sidewalks. A streetscape is defined as a landscaped median (if any), landscaped parkway and a “Landscaped Area”. The Landscaped Area is a common lot owned by a Homeowners Association. Unless otherwise noted the landscaping parkway and Landscaped Area will be maintained by a Homeowners’ Association. If provided, a sidewalk or trail may meander anywhere within the landscaped parkway or Landscaped Area. A meandering sidewalk shall be at least three (3) feet from the face of curb, except at intersections or other crossings. Medians in public roads and public sidewalks will be maintained by the City.
As noted previously, the project includes water reservoirs, which would be designed in a way that screens them from public views. The graded slopes for the reservoirs would be landscaped in compliance with Title 17.06 of the Anaheim Municipal Code. The Specific Plan includes design guidelines for the landscaping associated with the water reservoir sites.
The proposed project would also include replacement of approximately 27 acres of oak, sycamore, willow, and other native trees removed as a result of project implementation. While the City of Anaheim Scenic Corridor Overlay Zone (Chapter 18.18 of the Zoning Code) requires the replacement of trees at a ratio ranging from 2:1 to 4:1 depending on the size of the tree removed, the Mountain Park Specific Plan provides for the replacement of trees at a ratio of 20:1. Trees to be replaced consistent with the City’s requirement would be replaced with the allowable replacement trees identified in the Scenic Corridor Overlay Zone (Table 18-B). The remaining tree placement would consist of oaks, sycamores, willows, toyon, and other native trees present on the project site consistent with the tree list included in the Mountain Park Specific Plan. The percentage of the different types of replacement trees would be representative of the trees existing on the site and would be planted in varying sizes to promote age and size diversity and create a more biologically sound replanting program. The final tree replacement program would be developed during the tentative tract map stage for individual Development Areas.
Lighting Concept
The proposed project would include various types of lighting throughout the development. More detailed lighting plans would be developed during the tentative tract map stage of project development. Based on the conceptual lighting plan for the project, the following types of lighting would provided: signalized intersections; theme street lights at intersections; accent lighting at entry gates; street lights within Development Areas; and low-level security lighting at parks and school. Street lighting pursuant to City standards would be provided along the Weir Canyon Road extension and the public portion of Mountain Park Drive.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-24 Project Description Based on conceptual plans, street lights at major private streets and intersections, local streets, interior streets and park areas, would be a maximum of 14 feet high.
Sports field lighting would be provided at the proposed community park in Development Area 3.
Based on the final sport field layouts, a site-specific lighting system would be designed utilizing state-of-the-art technology that redirects wasted light onto the playing fields; restricts light source visibility (glare); and reduces night sky glow.
Fire Protection
In addition to the provision of a fire station previously discussed, the Mountain Park Specific Plan includes a Fire Master Plan. The Fire Master Plan identifies various design features (discussed below) to improve fire protection within the project site, including implementation of a fuel modification plan (FMP). As identified in the City of Anaheim General Plan Safety Element (Figure S-5, Fire Protection Areas), the project site is within a designated Very High Fire Hazard Severity Zone. Due to the fire protection program outlined in the Fire Master Plan, the Very High Fire Hazard Severity Zone could potentially be relocated to the outermost portion of the fuel modification zones and tract boundary (further discussed in Section 4.10, Hazards and Hazardous Materials).
The FMP has been prepared in accordance with the City of Anaheim Fire Department Fuel Modification Plan Guidelines. The goal of the FMP is to reduce the risk of houses and other combustible structures being destroyed by vegetation fires. The primary component of the FMP is the fuel modification area (FMA). As defined by the City of Anaheim Fire Department, a fuel modification area is a wide strip of land where combustible vegetation has been removed and/or modified and partially or totally replaced with drought-tolerant, fire-resistant plants to provide an acceptable level of risk from wildland and vegetation fires. The FMP for the proposed project is shown on Exhibits 3-15a and 3-15b and has been developed to maintain a natural presence, on the outermost perimeters adjacent to urban/wildland interface areas. The proposed FMA consists of a 170-foot wide swath. The following text and Exhibits 3-15a and 3-15b describe the designs of the FMA for manufactured slopes and ungraded slopes. All landscaping requirements in the specific plan are intended to be in conformance with fuel modification requirements of the Anaheim Fire Department.
x Zone A. The area encompassing Zone A would be for non-combustible construction only. The 20-foot zone may be entirely on a private lot (homeowner maintained); split with ten-feet on the lot (homeowner maintained), and ten-feet in common areas (HOA maintained); or entirely within HOA property.
x Zone B. The next 50 feet of the FMA shall be irrigated areas. The irrigated landscape within the FMA would have automatic irrigation, removal of dead and dying vegetation thinning and/or planting of vegetation from the approved City of Anaheim Fire Department plant list. Zone B shall be maintained by the Homeowners Association. x Zones C and D. The outer 100 feet of the FMA shall be non-irrigated landscaping and/or thinning areas. Zones C and D shall be maintained by the Homeowners Association.
The final FMP design is dependent upon the amount and arrangement of vegetation, topography, degree of exposure, local weather conditions, construction design, and placement of structures. The final FMA would ensure that structures have adequate fire safety protection and that surrounding vegetation would only be disturbed to the extent absolutely necessary, thereby preserving valuable habitat and native vegetation.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-25 Project Description In addition to the FMP, the project would provide: terminal storage requirements for potable water and residual line pressure; fire flow that exceeds fire department requirements; compliance with the City’s 150-foot hose pull requirement from required access roadways and drives; a drivable median on Gypsum Canyon Road into Development Areas 1 and 2 and the entrance to Development Area 4; emergency access ways into cul-de-sac areas, where feasible; provisions for emergency access at entry gates; evacuation staging areas and safety zones throughout the project; and use of the existing access road in the TNC ACE as an emergency egress route. Additionally, structures on-site would have fire protection design features, including but not limited to: automatic fire sprinklers; boxed in eaves and no venting on all exposed sides of structures facing any fuel modification zones; and Class A-roof assembly on all structures.
Grading Concept
Grading for the proposed project would occur in phases (refer to discussion below); however, the earthwork would be balanced on-site. The proposed project involves approximately 26 million cubic yards (cy) of earthwork (cut and fill), and an additional approximately 20 million cy of remedial grading (excavation and recompaction of soils) would be required to ensure slope stability. Exhibit 3-16 provides the cut and fill map for the project. Depth of cut or fill means the vertical distance between existing natural ground and the finish elevation at any location. The grading plan for the project would include applicable design criteria and guidelines, as presented in the latest Anaheim Building Code, State of California Special Publication 117, and the City of Anaheim Manual of Grading. Following is a conceptual description of the proposed grading plans for the respective residential Development Areas.
Development Area 1
The proposed conceptual grading plan for Development Area 1 area would generally consist of lowering the grades along the northern portion of the Development Area and raising the grades in the central portion of the Development Area. There would be approximately 2.65 million cy of earth work, and an additional approximately 1.4 million of remedial grading. Exhibit 4.2-30a in Section 4.2, Landform and Aesthetics, provides a cross-section depicting the proposed grading concept in this area. The deepest proposed fill, excluding remedial removals, is within the large drainage through the central part of the Development Area (refer to Exhibit 3-16). Fill slopes are also proposed along the eastern portion of the Development Area. Large cut slopes are proposed along the southern and northwest boundaries of the Development Area as well as along the main access road into this area. As previously discussed, a water reservoir is proposed to the south of the Development Area, and would require cut slope grading in order to provide an access road and pad.
Development Area 2
The proposed conceptual grading plan for Development Area 2 would generally consist of lowering the grades through the central portion of the Development Area and raising grades along the northern and western portions of the Development Area. There would be approximately 1.25 million cy of earth work, and an additional approximately 2.15 million cy of remedial grading. Exhibit 4.2-30b in Section 4.2, Landform and Aesthetics, provides a crosssection depicting the proposed grading concept in this area. The maximum proposed cut for this area is near the toe of the largest east facing cut slope. The deepest proposed fill, excluding remedial removals, is within the southern portion of the Development Area. Fill slopes are also proposed along the northern and western edges of the Development Area. Cut slopes are proposed along the eastern edges of the Development Area.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-26 Project Description Development Areas 3 and 7
The proposed conceptual grading plan for Development Areas 3 and 7, which would allow for construction of the Weir Canyon Road Extension, would generally consist of lowering the ridge that divides the Development Area, filling the canyon in the southwest corner of the Development Area, and raising the grades of the northern portion of the Development Area.
There would be approximately 5.55 million cy of earth work, and an additional approximately 2.0 million cy of remedial grading. Exhibit 4.2-30c in Section 4.2, Landform and Aesthetics, provides a cross-section depicting the proposed grading concept in this area. The maximum proposed cut for Development Areas 3 and 7 is at the toe of the north facing cut slope south of the Weir Canyon Road extension. The deepest proposed fill, excluding remedial removals, is within the east facing fill slope adjacent to SR-241. As discussed previously, a water reservoir is proposed to the south of the development area and would require grading for an access road and pad.
Development Area 4
The proposed conceptual grading for Development Area 4 would generally consist of lowering the grades in the northern portion of the Development Area and raising the grades in the southern portion of the Development Area. There would be approximately 4.55 million cy of earth work, and an additional approximately 3.45 million cy of remedial grading. Exhibit 4.2-30d in Section 4.2, Landform and Aesthetics, provides a cross-section depicting the proposed grading concept in this area. The maximum proposed cut for Development Area 4 is within the northern portion of the Development Area. The deepest proposed fill, excluding remedial removals, is within the main drainage that nearly bisects the southern portion of the Development Area. Fill slopes are planned for the central and southwestern portions of the Development Area. Cut slopes and daylight fills are proposed along the southern and southeastern portions of the Development Area.
Development Area 5
Development Area 5 is located where the Robertson’s quarry previously operated. The proposed conceptual grading plan for Development Area 5 is derived from existing conditions with the quarry and not post-reclamation conditions. The conceptual grading plan will need to be reviewed following implementation of the Reclamation Plan for the quarry (discussed previously in Section 3.2, Environmental Setting).
The currently proposed conceptual grading plan for Development Area 5 generally consists of lowering the grades in the southern and eastern portions of the Development Area and raising the grades in the northern and western portions of the Development Area. Exhibit 4.2-30e in Section 4.2, Landform and Aesthetics, provides a cross-section depicting the proposed grading concept in this area. The maximum proposed cut for Development Area 5 is near the toe of the west facing cut slope within the eastern portion of the Development Area. The deepest proposed fill, excluding remedial removals, is within the northern portion of the Development Area. Fill slopes are also proposed along the northern and western boundaries of the Development Area.
Development Area 6
The proposed conceptual grading plan for Development Area 6 generally consists of lowering the grades in the southern and eastern portion of the Development Area. The maximum cut is at the southern boundary of the Development Area. The grading quantities for this
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-27 Project Description Development Area have been included in Development Area 4 and the grading would be conducted at the same time.
Remedial grading for the Mountain Park project would include, but not be limited to, the following: the removal of compressible alluvium within the proposed grading areas (this material is largely confined to the main and side tributary canyons and includes Development Areas 1, 2, 4, and 5); the removal of major fill deposits which are associated with Robertson s (Development Area 5); the removal or stabilization of landslides within or affecting proposed development areas; the stabilization of proposed cut slopes exhibiting adverse geologic conditions such as out of slope bedding components (it is anticipated that all northwest facing cut slopes would require stabilization); and the removal of all other fill deposits, topsoil, and slopewash within the limits of proposed grading.
Biological Resource Protection Features
As identified in Section 3.2, Environmental Setting, the majority of the project site is undeveloped and contains various vegetation communities, which support a variety of plant and animal species. The proposed project has incorporated a number of features for the purpose of protecting biological resources. These project features are described below.
Resource Avoidance
As discussed under Open Space/Recreation, the proposed project includes 2,163 acres of open space, including 940 acres within the NCCP/HCP Reserve, 913 acres within the TNC ACE and 310 acres of other open space. Approximately 72 percent of the Mountain Park project area would remain within natural open space (refer to Exhibit 3-8). Combined, these open space features result in avoidance and preservation of substantial areas of key resources including:
x Avoidance of the ridge separating Coal Canyon and Gypsum Canyon; x Contribution of a substantial buffer (preserved as part of the TNC ACE) between the proposed development area and the preserved open space of Coal Canyon; x Avoidance of potential golden eagle and prairie falcon nesting sites within the upper elevations of the project site;
x Avoidance of the federally endangered Braunton’s milk-vetch population within the project site, and avoidance of the sensitive plant species Palmer’s grapplinghook; x Avoidance of 56 percent of the chaparral nolina plant community and 82 percent of the chaparral nolina (plant species) within the project site; x Avoidance of 82 percent of the needlegrass within the project site; x Avoidance of 100 percent of Tecate Cypress Forest;
x Additional avoidance (beyond NCCP/HCP requirements) of CSS and CSS species, including listed California gnatcatcher;
x Avoidance of 84 percent of coast live oak woodland;
x Avoidance of 65 percent of the many-stemmed dudleya population within the project site;
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-28 Project Description x Avoidance of approximately 70 percent of the foothill mariposa lily population within the project site;
x Avoidance of 100 percent of sensitive high function and value willow scrub, sycamore riparian, and mixed riparian; and,
x Avoidance of 87 percent of higher function and value creek, stream and drainage areas within the project site.
Wildlife Movement Protection
In addition to resource avoidance discussed above, a key project design feature incorporated to protect wildlife movement is the provision of buffers between the proposed development and identified wildlife movement areas, including Coal Canyon and the SR-241 undercrossing. The project has been designed to provide a substantial buffer between the proposed development and the documented wildlife movement corridor within Coal Canyon, avoiding the ridge that separates the project and Coal Canyon. Coal Canyon is a documented wildlife movement corridor and is currently undergoing renovations to restore native vegetation and enhance its ability to provide wildlife movement between the Chino Hills and the Santa Ana Mountains. This important wildlife movement corridor is discussed in more detail in Section 4.6, Biological Resources. The proposed development would be more than one-half mile from the wildlife undercrossing provided along SR-241.
To accommodate localized wildlife movement along Gypsum Creek, the project includes a bridge along Gypsum Canyon Road over Gypsum Creek just south of the entrance to Development Area 2. The bridge would be approximately 200 feet in length and span the existing Gypsum Creek streambed below. Based on conceptual design, it is anticipated the bridge would be a cast in place concrete structure approximately 50 to 55 feet in width and would have a minimum clearance of 10 feet between the ground and bottom of the bridge structure. More detailed bridge design would be determined during the tentative tract map stage for Development Area 1. This bridge would allow wildlife to follow Gypsum Creek and then travel to the east (Coal Canyon) within the on-site drainage area that would be restored as part of the proposed project.
The proposed project would also minimize lighting within the development area, and shield and/or direct lighting along the perimeter of the development away from open space areas.
Restoration Elements
An approximate 8.6-acre area between Development Areas 2 and 5 would be restored as part of the proposed project. The area currently consists of an unnamed drainage, which is tributary to Gypsum Canyon Wash. Impacts to this drainage are required to stabilize the south-facing slope immediately south of the existing quarry/mine. The existing drainage would be recreated and restored back to its pre-mining condition. Vegetation within the drainage would be restored to a mule fat scrub and mule fat scrub/oak woodland community.
3.3.3 PROJECT PHASING
For future planning purposes, five general development phases are estimated for the Mountain Park Specific Plan. Based on current planning, Development Areas 3 and 7, west of SR-241, would be built in the first phase. Development of the remaining four residential Development Areas is currently planned to occur in the following order: Development Areas 4, 5, 2, and then 1. Development Area 6, which includes the fire station, trail staging area, interpretive Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-29 Project Description center and/or potential store concession, would be developed at the same time as the first Development Area in the eastern portion of the project site. The phasing program is for informational purposes only and would be updated annually by the property owner/developer.
The phasing program can be revised by the property owner/developer without a Specific Plan Amendment. Project buildout is anticipated by 2010.
Phase areas may overlap to some extent and grading and construction outside of a development phase would be accomplished as necessary for infrastructure and geotechnical constraints.
3.3.4 OFF-SITE PROJECT FEATURES
The proposed project would require the implementation of off-site project features. The locations of off-site components of the project are depicted on Exhibit 3-20 in Section 3.6, Description of Project Impact Area, and include: drainage improvements within Featherly Regional Park; realignment and improvements to Gypsum Canyon Road between Santa Ana Canyon Road and Featherly Regional Park; improvements to Santa Ana Canyon Road immediately west of Gypsum Canyon Road and the entry to the project site; removal of pavement at the eastern terminus of Weir Canyon Road at the western project boundary; improvements to the current terminus of Oak Canyon Drive; and connections and upgrades to off-site infrastructure facilities.
In addition to these off-site project features, the proposed project also includes roadway and drainage improvements within Caltrans right-of-way, which are described in Section 3.3.5.
Portions of the proposed improvements to the SR-91/Gypsum Canyon Road interchange are also with the City of Anaheim right-of-way and would also require approval from the City of Anaheim.
Following is a description of off-site project features.
Featherly Regional Park Drainage Improvements
The existing “rip-rap” protection located at the outlet of the culvert discharging into Featherly Park would be evaluated to determine if modifications are necessary to improve the energy dissipation effectiveness. Rip-rap is a permanent cover of rock of varying sizes (either grouted or loose fill) used to stabilize streambanks, provide in-stream channel stability, and provide a stabilized outlet below concentrated flows. Potential improvements include a 50-foot concrete apron followed by 20 feet of rip rap at the box culvert outlet to reduce velocities down to the ten to 12 feet per second (fps) range. Rip-rap may also be added to the embankments up to 60 to 70 feet beyond the concrete apron for additional protection. After flow velocities have decreased to the range of ten to 12 fps, turf-reinforced mesh blankets would be selected that are designed to withstand this flow rate and vegetation would be utilized along the channel bottom and embankments to provide additional stabilization of the channel up to an additional 300 feet in length. Existing rip rap protection at the bridge abutments may also be modified to improve the effectiveness of these measures. This drainage improvement would require approval from the County of Orange.
Santa Ana Canyon Road Improvements
As part of the proposed project, Santa Ana Canyon Road would be realigned between the area beneath the SR-241 ramps and Gypsum Canyon Road. The existing roadway that is one lane in each direction would be moved in a southerly direction. The relocated intersection of Santa Ana Canyon Road/Gypsum Canyon Road would be approximately 300 feet south of the existing Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-30 Project Description intersection. The realigned roadway would be constructed to its ultimate cross-section (two 11-foot lanes in each direction, 16-foot median, seven-foot on-street bikeways in each direction, and ten-foot parkways including five-foot sidewalks in each direction). From the project boundary, the road would transition to join the existing two-lane Santa Ana Canyon Road approximately 500 feet west of the project site. As the road passes beneath the existing SR-91/SR-241 northeast connector bridge, a retaining wall would be constructed on the south side to retain the existing slope condition beneath the overpass. As discussed in Section 3.3.5 below, this off-site improvement encroaches into Caltrans’ right-of-way and would require approval and an encroachment permit from Caltrans.
Gypsum Canyon Road/SR-91 Box Culvert Modification
As previously discussed under the description of drainage improvements within the Gypsum Canyon Watershed, to accommodate increased peak flow rates from the project in the Gypsum Canyon watershed and to eliminate existing flooding conditions, the proposed project includes modifications to the existing triple cell 12-foot by 10-foot reinforced concrete box (RCB) culvert that conveys runoff from Gypsum Canyon to the Santa Ana River. Approximately 1,500 feet would be modified at the downstream end of Gypsum Canyon. Approximately 300 feet of this box culvert modification south from SR-91 is within Caltrans right-of-way and would require an encroachment permit. In addition to the City of Anaheim and Caltrans, this modification also requires approval from the County of Orange.
Weir Canyon Road Improvements
West of the project site at its intersection with Blue Sky Way, Weir Canyon Road is a six-lane road (three lanes in each direction). Currently a left turn lane movement is allowed from eastbound Blue Sky Way to westbound Weir Canyon Road. As part of the proposed project, Weir Canyon Road would be extended southeast to a planned interchange at SR-241 as a fourlane road. Additionally, within the intersection of Blue Sky Way and Weir Canyon Road, a landscaped median would be constructed to prohibit left turn movements at Blue Sky Way.
West of the intersection, Weir Canyon Road would be restriped to transition from the proposed on-site four-lane road to the offsite six-lane road. The restriping would extend approximately 600 feet to the intersection of Oak Canyon Drive.
Oak Canyon Drive Improvements
Oak Canyon Drive was originally proposed to bridge SR-241 as part of the Mountain Park Specific Plan (SP 90-4) approved in 1991. The reduction in development with the proposed project (2,500 residential units instead of 7,966 units) and the inclusion of Mountain Park Drive preclude the need for the extension of Oak Canyon Drive. As part of the proposed project, the existing portion of Oak Canyon Drive east of Running Springs Drive would be removed. Oak Canyon Drive would terminate at Running Springs Drive and a sidewalk would be provided at the easterly end of the new T-intersection. The area between Running Springs Drive and the project site would be landscaped and include an approximately 20-foot wide paved maintenance road with restricted access. This maintenance road would connect with the existing maintenance road near the current terminus of Oak Canyon Drive. The proposed Oak Canyon Improvements are shown on Exhibit 3-17.
Sanitary Sewer Facilities
As previously discussed, the proposed project requires off-site connections to existing sanitary sewer facilities, including the SARI line. Off-site sewer connection options are outlined in the project sewer study (included in Appendix N to this EIR). The sewer study addresses numerous Mountain Park Specific Plan Amendment EIR No. 331
Source:
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-31 Project Description options for conveyance of sanitary sewer wastewater flows off-site. The City of Anaheim has selected options to be addressed in this section and section 4 of this EIR, and the remaining options are addressed in Section 5, Alternatives. The references to sewer connection options provided in this EIR are numbered consistent with the sewer study; however, for clarification west and east basin options are referred to with a “W” and “E” as appropriate.
There are five potential options for off-site sewer connections for eastern development areas:
x E-1 – Gravity Main to SARI Pipeline via Gypsum Canyon Road x E-2 – Gravity Main to SARI Pipeline in SAVI Ranch via Santa Ana Canyon Road x E-3 – Gravity Main to SAVI Ranch via Santa Ana Canyon Road and River Maintenance Road
x E-4 – Gravity Main to SARI Pipeline South Relocation
x E-5 – Force Main to SARI Pipeline via Gypsum Canyon Road Bridge Option E-2 is described below and analyzed section 4. Options E-1, E-3, E-4 and E-5 are being addressed as alternative options and are described and analyzed in Section 5, Alternatives.
There are four potential options for off-site sewer connections for western development areas:
x W-1 – Gravity Main to East Basin Facilities via Bridge over SR-241 x W-2 – Temporary Force Main to The Summit Residential Community via Weir Canyon Road
x W-3 – Gravity Main to the Summit of Anaheim Hills via Weir Canyon Road x W-4 – Gravity Main to the Summit of Anaheim Hills via Fallbrook Way Option W-1 would involve flows from the west flowing through on-site facilities to eastern development areas and ultimately off-site; the off-site connection is analyzed through the various east basin connection options. Option W-3 is described below and analyzed in Section 4. Options W-2 and W-4 are being addressed as alternative options and are described and analyzed in Section 5, Alternatives.
The sanitary sewer connection options to ultimately be constructed would be coordinated with the following agencies: City of Anaheim, City of Yorba Linda (for east basin options), and Orange County Sanitation District (OCSD). The OCSD is the agency responsible for the SARI line, and the off-site sanitary sewer connection alternatives for the east basin are located within the City of Yorba Linda.
Sanitary Sewer Line Connection for Eastern Development Areas As noted previously, sanitary sewer wastewater from proposed uses east of SR-241 would drain by gravity flow northerly to the intersection of Gypsum Canyon Road and Santa Ana Canyon Road. At this collection point project sewage would be conveyed by gravity flow out of the development to a SARI line connection point (refer to Exhibit 3-12) in the vicinity of SAVI Ranch.
This sanitary sewer connection option is described below (Option E-2 from the Mountain Park Project Sewer Study).
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-32 Project Description Option E-2 – Gravity Main to SARI Pipeline in SAVI Ranch via Santa Ana Canyon Road Under this alternative, from Gypsum Canyon Road, a 15-inch sewer gravity main would be installed westerly along Santa Ana Canyon Road and through the SR-91/SR-241 interchange area entering existing Santa Ana Canyon Road approximately 1,000 feet west of Gypsum Canyon Road. The gravity main would continue approximately 0.75 mile westerly to a vertical low point in Santa Ana Canyon Road. At this location, the gravity main would continue westerly to the intersection of Woodcreek Road using microtunneling (trenchless technology) construction techniques. At this point, the sewer line would extend north and cross SR-91 (using microtunneling), and enter the existing SAVI Ranch commercial/retail center in a parking lot area. Utilizing existing trenching techniques the gravity main would continue north through the existing parking lot to SAVI Ranch Parkway would turn northwest and connect to an existing SARI pipeline manhole at the intersection of SAVI Ranch Parkway and Old Canal Road. Traffic control would be required in Gypsum Canyon Road and portions of Santa Ana Canyon Road during installation of the gravity main pipe when traditional trenching methods are used.
Sanitary Sewer Line Connection for Western Development Areas Alternative W-3, Gravity Main to The Summit of Anaheim Hills via Weir Canyon Road Since the western development areas would be developed prior to eastern development areas, sanitary sewer facilities for the development areas west of SR-241 would require a connection to existing off-site facilities in The Summit of Anaheim Hills to the west (refer to Exhibit 3-12).
Under this sanitary sewer system option (Alternative W-3 from the Mountain Park Project Sewer Study), flows from the project site would be conveyed in Weir Canyon Road to its intersection with Sunset Crest Street in an 8-inch gravity main. The gravity main would be constructed using microtunnel construction techniques. Sewage flow would then be conveyed in an 8-inch gravity main east on Sunset Crest Street to its intersection with Wiley Way and would join existing sanitary sewer facilities at this location. Construction of the 8-inch gravity main in Sunset Crest Street would be by traditional trenching methods.
Connections to Other Existing Off-site Utilities
Implementation of the proposed project would require the extension of off-site utilities to connections with utilities proposed as part of the project (described previously). Off-site utilities would be extended through existing streets. Construction of the utility extensions would be coordinated with the respective utility providers. Following is a description of proposed off-site utility connections:
x Electric – To provide service to the project site, an existing 12 kV circuit would be extended from near the intersection of Weir Canyon Road and Oak Canyon Drive. A new distribution and telecommunication circuit would be installed from the new substation to be built by the City and routed south in Weir Canyon Road to the public and private streets in Development Areas 3 and 7. The proposed project also includes duct bank routing and installation of two new electrical distribution and telecommunication circuits in Santa Ana Canyon Road from the new substation east to private streets within Development Areas 1, 2, 4, and 5. Also, the existing overhead 12 kV circuit in Santa Ana Canyon Road that serves the quarry site would be undergrounded within the project site (approximately 1,600 feet). x Natural Gas – Natural gas service to the proposed project would be provided from connections to existing SCG facilities: an eight-inch gas pipeline located at SR-91 and Gypsum Canyon Road, and an existing ten-inch gas pipeline located at Oak Canyon Drive Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-33 Project Description and Weir Canyon Road. These existing gas pipelines would be extended through existing streets to the proposed facilities within the project.
x Water – The primary water supply to the proposed project would be provided from the City of Anaheim’s 750-foot zone distribution system through the extension of the existing 24-inch transmission main in Santa Ana Canyon Road. Approximately 6,000 linear feet of 24-inch pipeline in Santa Ana Canyon Road would need to be constructed to supply flow to the proposed project at the intersection of Gypsum Canyon Road and Santa Ana Canyon Road.
A portion of the City’s pipeline in Santa Ana Canyon Road that is currently 20-inches would need to be upsized for service to the proposed project.
Back-up supply (redundancy) is proposed to be provided from connections with existing pipelines in The Summit of Anaheim Hills development from both 900-foot and 1,120-foot zones. These connections would be located in Oak Canyon Drive and Weir Canyon Road (refer to Exhibit 3-11).
x Telephone – Telephone service to the proposed project would be provided from an extension of existing facilities from the existing SBC remote center located at Weir Canyon Road and Santa Ana Canyon Road. New facilities would be constructed through Santa Ana Canyon Road and Weir Canyon Road to the project site.
x Cable Television – Cable television service to the proposed project would be provided from an extension of existing Adelphia facilities at Oak Canyon Drive/Running Springs Drive and Santa Ana Canyon Road/Woodcreek Road. Off-site conduits would be installed in sole trenches along Oak Canyon Drive and Santa Ana Canyon Road.
3.3.5 CALTRANS-RELATED PROJECT FEATURES
As previously noted, the proposed project includes the construction of a planned interchange at SR-241/Weir Canyon Road and a Mountain Park Drive bridge overcrossing at SR-241 to provide access between Development Areas east and west of SR-241. It should be noted that both of these facilities were assumed in the previous environmental documentation prepared for SR-241 (Eastern Transportation Corridor Final Environmental Impact Statement prepared in September 1994), and the Mountain Park Specific Plan (SP 90-4) Final EIR No. 302. This EIR addresses the impacts associated with construction of these facilities as currently designed.
The proposed project also requires construction within Caltrans’ right-of-way for roadway and drainage improvements, and remedial slope grading north of Development Area 5 along SR-91.
These project features would require approval from Caltrans and are also described below and analyzed in Section 4 of the EIR.
SR-241/Weir Canyon Road Interchange
The interchange would be a Type L-11 trumpet configuration modified to provide only a southbound SR-241 direct entrance ramp and a northbound SR-241 flyover exit ramp. There would be a two-lane overcrossing (refer to Exhibit 3-18). The interchange would be owned and maintained by Caltrans and would be designed to Caltrans standards. As previously noted, a Draft PR/PSR is currently being prepared for Caltrans for this facility and this EIR will serve as the environmental documentation for the PR/PSR. The Draft PR/PSR includes one recommended build alternative (as described here), as well as three alternatives that have been eliminated from consideration, and a no-build alternative.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-34 Project Description Mountain Park Drive Bridge Overcrossing
The Mountain Park Drive bridge overcrossing structure would be constructed at the same time as the portion of Mountain Park Drive on the east side of SR-241. The bridge is proposed to span 340 feet and would be a cast-in-place concrete box girder. The conceptual design and elevation for the bridge overcrossing are provided on Exhibit 3-19 and the proposed crosssection for the bridge overcrossing is provided on Exhibit 3-6d.
Because the bridge would be within Caltrans right-of-way, the bridge would be designed to Caltrans standards. Review and approval of the bridge design by Caltrans would be required.
A PSR/PR is currently being prepared for this facility and this EIR will serve as the environmental documentation for the PSR/PR. The PSR/PR identifies the proposed project (as described here) and no alternatives.
SR-91 Remedial Fill Slopes
Slope reconstruction would be required in the SR-91 right-of-way east of the Gypsum Canyon Road/SR-91 interchange in order to correct the geotechnical deficiencies caused by quarry mining operations. Encroachment permits would be obtained from Caltrans to build this slope within the Caltrans right-of-way and all construction would be in compliance with Caltrans design requirements.
Gypsum Canyon Road and SR-91 Interchange Improvements
Gypsum Canyon Road is currently a two-lane road in the interchange with SR-91, and widens to a four-lane road as it approaches the bridge over crossing of the Santa Ana River to the north of the project site. As part of the proposed project the road would be widened to a Modified Hillside Primary Arterial (four-lane) standard. The roadways would include a 12-foot median, two 12-foot lanes in each direction, a five-foot sidewalk in the northbound direction, and a 14-foot trail in the southbound direction (refer to cross-section shown on Exhibit 3-6e). The trail would be owned and maintained by the County of Orange and would be separated from traffic by a concrete barrier. Retaining walls would be constructed on each side of the street to hold back the existing slope condition under the existing bridge over crossing. This proposed widening would affect the entrance/exit geometry of the six freeway ramps at this interchange and would require minor ramp reconfigurations; the ramp capacity (i.e., number of lanes provided) would remain the same. Minor pavement reconfiguration and restriping would also be necessary to the entrance road in Featherly Regional Park. This off-site improvement is also within City of Anaheim right-of-way and would require approval from the City.
Gypsum Canyon Road/SR-91 Box Culvert Modification
As previously discussed under the description of drainage improvements within the Gypsum Canyon Watershed, to accommodate increased peak flow rates from the project in the Gypsum Canyon watershed and to eliminate existing flooding conditions, the proposed project includes modifications to the existing triple cell 12-foot by 10-foot reinforced concrete box (RCB) culvert that conveys runoff from Gypsum Canyon to the Santa Ana River. Approximately 1,500 feet would be modified at the downstream end of Gypsum Canyon. Approximately 300 feet of this box culvert modification south from SR-91 is within Caltrans right-of-way and would require Caltrans approval. The remainder of the culvert improvements would require approval from the City of Anaheim and/or the County of Orange.
SR-241/Weir Canyon Road Interchange
Mountain Park Specific Plan Amendment EIR No. 331Source:RBF ConsultingNovember 2004 Exhibit 3-18
March 11, 2005
Not To Scale
R:\Projects\TIC\J020\fuscoe\ex3-18_020305.pdf
Mountain Park Drive Bridge Overcrossing
Mountain Park Specific Plan Amendment EIR No. 331Source:RBF ConsultingNovember 2004 Exhibit 3-19
March 11, 2005
Not To Scale
R:\Projects\TIC\J020\fuscoe\ex3-19_020305.pdf
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-35 Project Description Santa Ana Canyon Road Improvements
As part of the proposed project, Santa Ana Canyon Road would be realigned between the area beneath the SR-241 ramps and Gypsum Canyon Road. A description of these improvements was previously provided. As the road passes beneath the existing SR-91/SR-241 northeast connector bridge, a retaining wall would be constructed on the south side to retain the existing slope condition beneath the overpass. This portion of the Santa Ana Canyon Road improvements is within Caltrans right-of-way and would require an encroachment permit.
Slope and Drainage Facility Modifications along SR-241
Along both sides of SR-241, the proposed project would require grading in the area between the existing edge of pavement and the existing right-of-way line. The width of this area is approximately 30 feet and extends from the proposed SR-241/Weir Canyon Road interchange to 800 feet north of the proposed Mountain Park Drive bridge overcrossing along the west side of the roadway, and to Santa Ana Canyon Road along the east side of the roadway. The area to be re-graded within Caltrans right-of-way currently consists of 2:1 manufactured slopes above or below the roadway. The slope modifications are required to provide flat footprint space for planned water quality treatment and drainage facilities. As described below, existing drainage facilities in this area would also be modified.
There are three existing culverts within the Gypsum Canyon watershed that collect flows and pass under SR-241. The existing 72-inch CSP that drains underneath the SR-241 would be abandoned and replaced with a 54-inch RCP to accommodate grading modifications to the tributary areas. Several of the smaller collections systems draining into this culvert would be modified. The existing SR-241 42-inch CSP outlet structure and its associated collection systems would also be modified to accommodate the proposed grading within Gypsum Canyon.
3.4 HOMEOWNERS ASSOCIATION
Common areas, the private recreation center and facilities, private open space lots, private drainage facilities and water quality basins, private sanitary sewers, private streets and entry gates, fuel modification zones, and other infrastructure improvements would be owned and maintained by a Homeowners Association (HOA) established under and subject to current state laws. The City Attorney and Director of Public Works would review the proposed HOA documents and CC&Rs (covenants, codes, and restrictions) for adequacy and completeness.
The CC&Rs would address such issues as common ingress and egress, drainage, landscaping, lighting and maintenance, and any other related on-site issues such as fences, walls, accessory structures, open space lots, etc. The CC&Rs would also outline the responsibilities of the homeowners and HOA, including maintenance and implementation of best management practices to maintain water quality, and fire protection measures.
3.5 PROJECT OBJECTIVES
Section 15124(b) of the State CEQA Guidelines indicates that an EIR should include “a statement of objectives sought by the proposed project”. Following are the objectives for the Mountain Park Specific Plan Amendment project.
1. Implement the goals and policies of the City of Anaheim General Plan. The objective is to ensure that development of the site is accomplished consistent with applicable goals and objectives of the City of Anaheim as set forth in the City’s recently updated General Plan. General Plan goals and policies relevant to the proposed project are identified for each topical issue addressed in Section 4.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-36 Project Description
2. Further regional transportation and air quality goals by creating housing near concentrated employment centers and major transportation corridors. The proposed project would provide various housing opportunities and would support commercial and public facilities in proximity to existing employment areas.
3. Provide a broad mix of housing opportunities. The proposed project provides a range of single-family attached and single-family detached residential units on lots ranging from 1,600 to over 7,000 square feet.
4. Develop a land use plan that responds to the site characteristics including topography, biological resources, and visually significant ridgelines. The proposed project would utilize canyon bottoms and adjacent areas for development, and would preserve important ridgelines and high canyon walls.
5. Provide regional open space/habitat preservation areas. The proposed project would confirm the preservation of 2,163 acres of contiguous natural open space (72 percent of the project site).
6. Maintain Consistency with the Implementation Agreement for the Central Coastal NCCP/HCP. The NCCP/HCP Reserve is discussed in Section 4.6, Biological Resources. Following approval of the NCCP/HCP, the participating agencies (including the City of Anaheim) and participating landowners (including The Irvine Company), USFWS, CDFG, and the County of Orange signed an IA. The IA sets forth the implementation requirements for the NCCP/HCP, including requirements related to dedication, creation, and management of the Reserve, interim management of the Reserve, funding for Reserve management, and procedures and minimization measures related to development impacts to, and “take” of Identified Species and modification of habitat in those areas designated for development under the NCCP/HCP.
7. Provide new homes for sale to address Orange County’s housing shortage.
Orange County and southern California generally, has seen a dramatic increase in the demand for new housing. The proposed project would provide a supply of 2,500 new homes for purchase to assist in alleviating this important public need.
8. Implement components of the Orange County Master Plan of Arterial Highways (MPAH) within and in the vicinity of the project site. The proposed project involves improvements to Weir Canyon Road and an extension of the roadway to its ultimate terminus at SR-241, consistent with the MPAH. The proposed project also involves improvements to Santa Ana Canyon Road consistent with the MPAH. The SR-241/Weir Canyon Road interchange which is assumed in the MPAH would also be implemented with the proposed project.
3.6 DESCRIPTION OF PROJECT IMPACT AREA
The proposed Development Plan included in the Mountain Park Specific Plan Amendment has been described in the preceding sections. The Development Plan establishes land use categories and Development Areas, consistent with the recently adopted City of Anaheim General Plan.
As identified in Section 2.1, Purpose of the Draft Program EIR, this program-level EIR is intended to serve as the primary environmental document for all future entitlements associated with the proposed project, including all discretionary approvals requested or required to Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-37 Project Description implement the project. A lead agency can approve subsequent actions without additional environmental documentation when specific conditions are met.
To facilitate the use of this EIR for future approval actions and to ensure that the direct and indirect impacts associated with the project have been addressed, the areas of disturbance (project impact area) that would be required to implement the Development Plan have been defined. The project impact area includes “primary impact areas,” “secondary impact areas,” and “off-site project feature impact areas.” Areas of impact resulting from implementation of the Mountain Park Specific Plan are described below and are shown on Exhibit 3-20. x Primary Impact Areas – Areas subject to potential vegetation removal and landform modifications due to grading (including remedial grading). While most of the primary impact area would be developed, certain areas subject to primary impacts would be restored to a natural condition and maintained in open space, such as the riparian restoration area between Development Areas 2 and 5. Additionally, transitional slopes to open space areas may be used for tree replacement.
x Secondary Impact Areas – Potential fuel modification zones beyond the grading limits subject to removal, thinning, and replacement of ground vegetation. It should be noted that some existing native trees in these areas would be preserved in place. Specific trees to be preserved would be identified during subsequent project approval stages (i.e., tentative tract map). Additionally, oak tree replacement may occur in secondary impact areas. x Off-site Project Feature Impact Areas – As discussed in Sections 3.3.4 and 3.3.5 above, the proposed project includes off-site project features. For purposes of analysis, the area of direct impact for the off-site project features has been determined. It should be noted that the impact area for installation of utility lines have not been included in the impact calculations. The installation of new utility lines and connections to existing utilities would occur within existing streets or already disturbed areas. x Non-Impact Areas – Non-impact areas include those areas that would remain in a natural condition and would not be subject to direct or indirect impacts. It should be noted that the non-impact area is not consistent with the total open space area for the project site as there are areas within proposed open space that would be subject to primary or secondary impacts during grading, but would ultimately remain undeveloped.
Table 3-2 provides a summary of the on-site and off-site impact areas associated with implementation of the proposed project.
As shown in Table 3-2, the proposed project would directly impact 872.7 acres within the project site (on-site project impacts), including 817.7 acres associated with primary impacts and 55 acres associated with secondary impacts. Off-site project features impact a total of
22.8 acres. Off-site impacts within Caltrans right-of-way would require an encroachment permit from Caltrans. As previously noted, the project would also require off-site connections to various utilities; however, the impact areas for these connections would occur within existing street right-of-way or otherwise disturbed areas, and the area of impact has not been calculated as it is not necessary to quantify the impact area to conduct the analysis of potential impacts.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-38 Project Description TABLE 3-2
PROJECT LAND USE AND IMPACT AREA SUMMARY
Project Impact Summary
Land Use Gross Acres
Primary
Impact Area
(acres)
Secondary Impact
Area
(acres)
Non-Impact Area
(acres)
On-site Project Features
Residential 826a. 734 48 44
Institutional 5 5 – –
Open Space
NCCP/HCP Reserve 940 – – 940
TNC Anaheim Conservation Easement 913 4.7b. 1 907.3
Other Open Space 310 67 c. 6 237
Public Highways 7 7
Subtotal On-site Project Area 3,001 817.7 55 2,128.3
Off-site Project Features
SR-241/Weir Canyon Road Interchange f. 3.9 3.9 d.
Mountain Park Drive Bridge Overcrossinge,f. 0.4 0.4
SR-91/Gypsum Canyon Interchange f. 4 4
Weir Canyon Road Improvements 1 1
Remedial Fill Slopes along SR-91 f. 4 4
Featherly Park Drainage Improvements 0.5 0.5
Gypsum Canyon Road Improvements f. 3 3
Santa Ana Canyon Road Improvements f. 4 4
Oak Canyon Road Improvements 2 2
Subtotal Off-site Project Feature Area 22.8 22.8
TOTAL 3,023.8 840.5 55 2,128.3
a. Includes a minimum 10-acre school site, and adjacent approximate 15-acre community park. b. Impact is from grading required for slope associated with Development Area 4 and SR-241/Weir Canyon Road interchange water quality basin.
c. This impact area includes grading for a water reservoir south of Development Area 7 and the portion of the SR-241/Weir Canyon Road interchange impact area that is within the project site east of SR-241. d. The total impact area for the interchange is approximately 8.75 acres; however, 2.75 acres are within the impact area (Development Areas 3 and 7), and 2.1 acres are within the project site, east of SR-241. The off-site impact area is within Caltrans right-of-way and would require an encroachment permit.
e. Implementation of the bridge overcrossing would require construction in Caltrans right-of-way (approximately 0.2 acre on each side of the bridge). The remainder of the impact area for the bridge overcrossing is within the primary impact area identified for the project on-site since the bridge extends between two development areas (Development Areas 3 and 4). f. Portions of each of these off-site project features are within Caltrans right-of-way and would require an encroachment permit. The impact area for the Gypsum Canyon Road/SR-91 box culvert modification is included within the SR-91/Gypsum Canyon Road interchange impact area. Note that there are also drainage facility and slope modifications required along SR-241 within Caltrans right-of-way.
SR - 241
SANTA ANA RIVER
SR - 91 FWY
VEGETATION; PROJECT DESIGN FEATURES DEFINED FOR THESE AREAS INCLUDE
SECONDARY IMPACT -
GRADING LIMITS SUBJECT TO REMOVAL, THINNING, AND REPLACEMENT OF GROUND LANDFORM MODIFICATION DUE TO GRADING (INCLUDING REMEDIAL GRADING).
PRIMARY IMPACT - AREAS SUBJECT TO POTENTIAL VEGETATION REMOVAL AND
POTENTIAL FUEL MODIFICATION ZONES BEYOND THE
PRESERVING EXISTING NATIVE TREES, SUCH AS OAKS AND SYCAMORES IN PLACE.
Source:
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-39 Project Description
3.7 BASIS FOR CUMULATIVE IMPACT ANALYSIS
Section 15355 of the California Environmental Quality Act (CEQA) Guidelines defines cumulative impacts as:
“ two or more individual effects which when considered together are considerable or which compound or increase other environmental impacts.” Section 15355 further describes potential cumulative impacts as follows:
“(a) The individual effects may be changes resulting from a single project or a number of separate projects.
(b) The cumulative impacts from several projects are the change in the environment which results from the incremental impact of the project when added to other closely related past, present, and reasonably foreseeable probable future projects. Cumulative impacts can result from individually minor but collectively significant projects taking place over a period of time.”
Section 15130 of the CEQA Guidelines states that cumulative impacts shall be discussed where they are significant. It further states that this discussion shall reflect the level and severity of the impact and the likelihood of occurrence, but not in as great a level of detail as that necessary for the project alone. Section 15355 of the Guidelines defines cumulative impacts to be “ two or more individual effects which, when considered together, are considerable or which compound or increase other environmental impacts.” Cumulative impacts represent the change caused by the incremental impact of a project when added to other proposed or committed projects in the vicinity.
The CEQA Guidelines (15130 b 1 ) states that the information utilized in an analysis of cumulative impacts should come from one of two sources, either:
1. A list of past, present, and probable future projects producing related cumulative impacts, including if necessary, those projects outside the control of the agency; or
2. A summary of projections contained in an adopted general plan or related planning document designed to evaluate regional or area-wide conditions.
The cumulative impacts analyses contained in this Draft EIR uses method 2. The cumulative impact analysis provided in this EIR utilizes the City of Anaheim General Plan study area. The cumulative impact analysis takes into consideration the demographic projections and land use buildout assumptions outlined in the General Plan Update and Final EIR that were approved by the City of Anaheim in May 2004. Tables 3-3 and 3-4 identify the estimated buildout for residential and non-residential uses within the City. General Plan land use designations are shown in Figure LU-4, Land Use Plan, of the City of Anaheim General Plan. This Draft EIR assesses the significance of potential cumulative impacts in the context of September 2003 citywide growth projections based on current land use policies incorporated into the 2004 General Plan Update.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-40 Project Description TABLE 3-3
CITY OF ANAHEIM RESIDENTIAL BUILDOUT ESTIMATES
Land Use Designation
Probable
Density Acres
Dwelling
Units
Persons
per
Household Population
RESIDENTIAL
Estate (0-1.5 du/ac) 1.0 1,270 1,522 3.3 5,024
Low Density (0-6.5 du/ac) 4.0 10,219 41,357 3.3 136,477 Hillside Low-Medium Density (0-6.0 du/ac) 5.0 863 3,393 3.3 11,197 Low-Medium Density (0-18.0 du/ac) 13.0 1,974 21,775 3.3 71,380 Medium Density (0-36.0 du/ac) 24.0 1,938 46,214 3.3 153,474 Corridor Residential (0-13.0 du/ac) 13.0 187 2,425 3.3 8,001 Subtotal 16,449 116,834 385,552
MIXED USE
Mixed Use 40.0 614 12,474 1.5 18,711
Subtotal 614 12,474 18,711
TOTALS 17,064 129,308 404,263
The number of dwelling units for each designation is calculated by adding the number of existing dwelling units in areas of the City that are not anticipated to change to the number of units that are calculated by multiplying the gross acres of areas that are most likely to change by the probable residential densities, then by adding the assumed number of dwelling units for the Mountain Park Specific Plan described below.
DUs in Areas Not Expected to Change are the number of dwelling units in areas that are not likely to be further subdivided or areas that have a fixed buildout capacity through a specific plan. These are determined by: 1) adding the number of parcels in areas that are not likely to further subdivide; or 2) by referencing the number of units expected at buildout for areas addressed through specific plans.
The Mountain Park Specific Plan area assumes a total buildout of 2,500 dwelling units -- 485 units of Low Medium Hillside Density and 2,015 units of Low Medium Density.
Mixed-Use densities and buildout projections for The Platinum Triangle are identified in Table LU-4 of the City of Anaheim General Plan.
Acreages identified in this table are approximate.
Source: City of Anaheim General Plan, May 2004.
In addition to the City of Anaheim General Plan study area, the cumulative analysis for individual topical issues may consider specific cumulative study areas designated by respective agencies for regional or area-wide conditions. Topic-specific cumulative study areas have been developed for traffic (taking into consideration traffic conditions for surrounding jurisdictions), biological resources (the County of Orange Coastal and Central NCCP/HCP area), and air quality (South Coast Air Basin). Also, this EIR considers regional programs directed at mitigating cumulative impacts of development such as the MS4 permit and its implementing programs, the DAMP and LIP. A description of the basis for cumulative impact analysis for individual topical issues (when it is not the City of Anaheim General Plan study area) is provided in Section 4.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-41 Project Description TABLE 3-4
CITY OF ANAHEIM NON-RESIDENTIAL BUILDOUT ESTIMATES
Land Use Designation
Probable
Intensity Acres
Square
Footage
Square Feet per
Employee
COMMERCIAL
Neighborhood Center (0.35-0.45 FAR) 0.35 230 2,634,509 400 Regional Commercial (0.30-0.50 FAR) 0.40 230 3,001,720 400 General Commercial (0.25-0.50 FAR) 0.30 690 6,765,630 400 Commercial Recreation
See Table
LU-4a. 924
See Table
LU-4 a. See Table LU-4 a.
Office-Low (0.40-0.50 FAR) 0.40 406 5,304,301 285
Office-High (0.50-2.00 FAR) 1.00 9 307,098 285
Platinum Triangle Office
See Table
LU-4 a. 210
See Table
LU-4 a. See Table LU-4 a.
Subtotal 2,699 19,748,258
INDUSTRIAL
Industrial (0.35-0.50 FAR) 0.35 2,677 30,614,730 364-700 Subtotal 2,677 30,614,730
MIXED USE
Mixed Use (1.5-3.0 FAR) 1.50 614 10,179,368 285-400
Subtotal 614 10,179,368
OPEN SPACE/RECREATION
Parks (golf courses) – 378 –
Up to 1 employee
per acre
Parks – 1,048 –
Up to 1 employee
per acre
Open Space – 5,012 – –
Water Uses – 1,226 –
Up to 1 employee
per acre
Subtotal 7,664
INSTITUTIONAL
Institutional (0-3.00) – 243 –
Varies by specific
use
Subtotal 243
SCHOOLS
Schools – 1,014 – –
Subtotal 1,014
TOTALS 14,911 60,542,356
Building intensities in The Anaheim Resort are specified in The Anaheim Resort, the Disneyland Resort and the Hotel Circle Specific Plans.
School employees were projected based on current ratios of school employees per capita population.
Acreages identified in this table are approximate.
a. Mixed-Use building intensities and buildout projections for The Platinum Triangle are identified in Table LU-4 of the City of Anaheim General Plan.
Source: City of Anaheim General Plan, May 2004.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-42 Project Description
3.8 INTENDED USE OF THE EIR
The City of Anaheim and the following responsible and trustee agencies are expected to use the information contained in this Program EIR for consideration of approvals related to and involved in the implementation of this project:
3.8.1 CITY OF ANAHEIM
Discretionary Actions
x Certification of the Mountain Park Specific Plan Amendment Program Environmental Impact Report. The project requires the acceptance of the environmental document as having been prepared in compliance with CEQA, and the State and City CEQA Guidelines, and certification that the data were considered in the final decisions on the project.
x Mountain Park Specific Plan Amendment. The project requires amendments to SP 90-4 to reflect the adopted General Plan land use designations for the site, the proposed Development Plan, Zoning and Development Standards, Design Guidelines and Public Facilities. With adoption of the Specific Plan Amendment, Chapter 18.112 of the City of Anaheim Zoning Code would be amended to incorporate the zoning standards for the site.
x General Plan Amendment, Removal of the site from the Very High Fire Hazard Severity Zone – Exhibit S-5 (Fire Protection Areas) of the City of Anaheim General Plan, Safety Element, identifies the project site within a Very High Fire Hazard Severity Zone. Based on the fire protection program outlined in the preliminary Fire Master Plan (Appendix R), discussed in Section 4.10, and shown on Exhibit 4.10-2, the property owner/developer is requesting that the General Plan, Safety Element, Exhibit S-5 (Fire Protection Areas) be amended to remove the Very High Fire Hazard Severity Zone designation from proposed development areas (including the outermost portions of the fuel modification zones and tract boundaries), consistent with the provisions of Section
16.40.030 of the Anaheim Municipal Code. A final Fire Master Plan will be subject to the approval of the Fire Department prior to submittal of the first tentative tract or parcel map, or approval of the first grading plan, whichever occurs first.
Subsequent Discretionary and Ministerial Actions
In addition to the discretionary actions listed previously, subsequent approvals by the City of Anaheim may include:
x Amendment to Water Rates, Rules and Regulations, Rule No. 15 The Orange County Water District (OCWD) is in the process of annexing the project site as well as other areas into its service area. If this annexation process is not complete when water delivery to the project site by the City of Anaheim is necessary, the City of Anaheim would consider an amendment to the language in Rule 15 (Section F.1) of its Water Rates, Rules and Regulations. The amended Rule would allow water service to the project site prior to annexation to the OCWD service area. The OCWD annexation process is further discussed in Section 4.12, Public Services and Utilities. x General Plan Amendment, Deletion of Jamboree Road Extension The Circulation Element of the General Plan currently identifies the Jamboree Road extension from Weir Canyon Road to the southern limits of the City’s sphere-of-influence. The City of Orange Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-43 Project Description is currently processing an amendment to the Orange County MPAH to delete the extension of this roadway. Following completion of the MPAH Amendment, an amendment to the City of Anaheim General Plan would be considered by the City. x Subdivision Maps including, but not limited to Vesting or Tentative Tract Maps x Final Site Plans
x Grading permits
x Public Facilities Financing and Bond Issuance
x Conditional Use Permits
x Specimen Tree Removal Permit
x Acquisition of rights of entry easements and right-of-way – This would be required for off-site project features, as necessary.
x Construction of Public Facilities
3.8.2 RESPONSIBLE AND TRUSTEE AGENCIES
The Program EIR would also provide environmental information to responsible and trustee agencies and other public agencies which may be required to grant approvals or coordinate with the City of Anaheim as a part of project implementation. These agencies include, but are not limited to, the following:
Federal
x U.S. Army Corps of Engineers. The project would require a U.S. Army Corps of Engineers (ACOE) Section 404 permit for impacts to areas determined by the ACOE to be “waters of the United States. The ACOE has jurisdiction over impacts in or affecting the navigable waters of the United States, pursuant to the Rivers and Harbors Act and the Clean Water Act. The project would require an ACOE Individual Permit prior to discharging any dredge or fill material into United States waters, pursuant to Section 404 of the Clean Water Act.
x United States Fish and Wildlife Service. The USFWS would review and confirm the project is consistent with the provisions of the County of Orange Central and Coastal Subregion NCCP/HCP and associated Implementation Agreement.
State of California
x State of California, Department of Transportation. Activities located within Caltrans right-of-way would require an Encroachment Permit and Caltrans Statewide NPDES Permit from Caltrans. A Draft Project Report/Project Study Report is being processed with Caltrans for the SR-241/Weir Canyon Road interchange, and a Project Study Report/Project Report is being processed for the Mountain Park Drive bridge overcrossing. These reports must be approved by Caltrans. This EIR will serve as the environmental document for all Caltrans-related project actions, including the interchange and bridge overcrossing.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\3 Proj Desc-033005.doc 3-44 Project Description x State of California, Department of Fish and Game. The project would require a Streambed Alteration Agreement from the CDFG pursuant to Section 1602 of the Fish and Game Code.
x State of California, State Water Resources Control Board. Pursuant to the Federal Clean Water Act, the project would require a Section 401 Water Quality Certification from the State Water Resource Control Board.
Regional and Special Districts
x South Coast Air Quality Management District. Air quality conditions in the South Coast Air Basin (Basin) are under the jurisdiction of the South Coast Air Quality Management District (SCAQMD), a regional agency that regulates air pollution throughout the Basin.
x Orange County Sanitation Districts. The OCSD is the agency responsible for regional sanitary sewer treatment facilities, and serves the project site. The proposed project would require a connection to the OCSD SARI sanitary sewer line. x Orange County Flood Control District. The Orange County Flood Control District (OCFCD) is the agency responsible for regional flood control facilities. The Featherly Regional Park drainage facility would receive runoff from the site and is an OCFCD facility.
x Orange Unified School District. The OUSD would be the agency responsible for the purchase and development of a school on the project site. The School District is required to comply with the requirements of Section 15186 of the State CEQA Guidelines regarding school facilities (address potential health impacts resulting from exposure to hazardous materials, wastes, and substances). This EIR would be used by the OUSD; however, subsequent environmental documentation for the proposed school may be required should the School District decide to build a school within the project site. The need for subsequent environmental documentation would be determined when site plans for the school are available. As discussed previously, the OUSD and the property owner/developer have entered into a School Impact Mitigation Agreement for the proposed project. Provisions of this agreement are discussed in Section 4.12, Public Services and Utilities.
x County of Orange Harbors, Beaches and Parks Department. The proposed project includes improvements to the existing drainage and extension of sewer service in Featherly Regional Park that is owned by the County of Orange Department of Harbors, Beaches and Parks. Additionally, the County would approve the alignment and improvement plans for the Gypsum Canyon Creek Trail should it ultimately be owned by the County.
x Foothill/Eastern Transportation Corridor Agencies (F/ETCA). The F/ETCA would review plans for the SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing for compatibility with existing and future toll road operations.
Cities
x City of Yorba Linda. Required approvals, permits, and agreements for the installation of sanitary sewer infrastructure to serve the project, as well as intersection and roadway improvements.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4 Intro-031405.doc 4-1 Introduction SECTION 4
EXISTING CONDITIONS PROJECT IMPACT ANALYSIS MITIGATION PROGRAM
CUMULATIVE IMPACTS AND LEVEL OF SIGNIFICANCE AFTER MITIGATION This section of the EIR provides analysis of impacts for those environmental topics where it was determined that the proposed project could result in “potentially significant impacts,” as identified in the Initial Study included in Appendix A. Each topical section includes the following information: description of the existing setting; identification of thresholds of significance; analysis of potential project effects; identification of cumulative impacts; identification of a mitigation program, if required, to reduce the identified impacts; and, identification of the level of significance of impacts after mitigation, including unavoidable significant adverse impacts.
Section 15064.7 of the State CEQA Guidelines addresses thresholds of significance and encourages each public agency to develop thresholds of significance through a public review process. Subsequently, these thresholds must be published and adopted by agency ordinance, code, or regulation. The City of Anaheim uses the thresholds of significance outlined in the State CEQA Guidelines.
For each topical issue in this section, the impact analysis is formatted to analyze the potential impacts of the project related to each identified threshold of significance. Unless otherwise noted, the analysis under each threshold addresses each of the following:
x On-site Impacts – On-site impacts include those impacts resulting from project components within the 3,001-acre project site. This includes the areas identified as “primary” and “secondary” impacts on Exhibit 3-20, Project Impact Analysis Map. x Off-site Project Feature Impacts – This category includes an analysis of the potential impacts resulting from implementation of identified off-site project features described in Section 3.3.4, Off-site Project Features, also depicted on Exhibit 3-20. x Caltrans-related Project Feature Impacts – This category includes an analysis of the potential impacts resulting from implementation of project features within Caltrans rightof-way that would require approval from Caltrans including an encroachment permit.
Caltrans-related project features are described in Section 3.3.5 and include: the SR-241/Weir Canyon Road interchange, Mountain Park Drive bridge overcrossing, and various roadway, drainage, and slope improvements and/or modifications along SR-91 and SR-241.
The mitigation program identified to reduce potential project impacts consists of Project Design Features (PDFs), Existing Requirements and Standard Conditions (SCs), and mitigation measures (MMs). The components of the mitigation program are described below. x Project Design Features – Project Design Features are specific design elements proposed by the project applicant that have been incorporated into the project to prevent the occurrence of, or reduce the significance of, potential environmental effects.
Because PDFs have been incorporated into the project, they do not constitute mitigation measures as defined by CEQA. However, PDFs are identified in the mitigation section for each topical issue and will be included in the mitigation monitoring program to be developed for, and implemented as a part of, the proposed project.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4 Intro-031405.doc 4-2 Introduction x Existing Requirements and Standard Conditions – Existing requirements and standard conditions are based on local, state, or federal regulations or laws that are frequently required independently of CEQA review and also serve to offset or prevent specific impacts. Typical standard conditions and requirements include compliance with the provisions of the Uniform Building Code, South Coast Air Quality Management District Rules, local agency fees, etc. Additional conditions may be imposed on the project by the City during the approval process, as appropriate.
x Mitigation Measures – Where a potentially significant environmental effect has been identified and is not reduced to a level considered less than significant through the application of PDFs and standard conditions and requirements, project-specific mitigation measures have been recommended.
It should be noted that any PDF or mitigation measure and timing thereof, subject to the approval of the City, which will have the same or superior result and will have the same or superior effect on the environment, may be substituted at the discretion of the City. The City of Anaheim Planning Department, in conjunction with any appropriate agencies or City departments, shall determine the adequacy of any proposed “environmental equivalent/timing” and, if determined necessary, may refer said determination to the Planning Commission. Any costs associated with information required in order to make a determination of equivalency/ timing shall be borne by the applicant.
The topical sections that follow incorporate the approaches described above.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-1 Land Use and Planning
4.1 LAND USE AND PLANNING
Information presented in this section is based on field reconnaissance, review of aerial photographs, and review of relevant planning documents as identified herein. Project consistency with existing, as well as planned land uses and land use policy, is assessed through review of the land use goals and policies contained in the City of Anaheim General Plan and oning Code (May 2004), as well as relevant goals and policies of jurisdictions in proximity to the project site.
4.1.1 EXISTING CONDITIONS
On-site Land Uses
The Mountain Park study area encompasses approximately 3,023. acres, including 3,001 acres on-site (project site) and 22. acres off-site (for infrastructure, roadway and drainage improvements). The 3,001-acre project site is currently undeveloped with the exception of the Robertson s Ready Mix (Robertson s) surface mining site and All American Asphalt, both of which are located in the northeastern portion of the project site. Additional site disturbance is associated with unimproved roads that traverse the site, prior cattle grazing, an abandoned clay mine, and a previous rocket fuel test site. SR-241 bisects the project site into western and eastern segments. An aerial photograph of the site, which identifies existing and surrounding land uses, is included as Exhibit 4.1-1.
Robertson s is an approximate 300-acre sand and gravel extraction and concrete ready-mix manufacturing facility (“quarry lease area”) that operated on-site under an extraction license agreement with property owner that terminated December 31, 2004. Remaining materials and equipment at Robertson s will be removed by June 2005. All American Asphalt operated as a sublicensee to Robertson s and will also be removed from site by June 2005. The quarry lease area was used for sand and gravel mining as well as concrete and asphalt mix production since the mid-1950s. arious tenants and subtenants occupied the site since mining was initiated.
Robertson s assumed the ground lease in 1995. Access to the quarry lease area is provided from Santa Ana Canyon Road and Gypsum Canyon Road. The quarry operated typically during daylight hours; however, the batch plant occasionally operated 24 hours a day. Additionally, mined products were often hauled in the evening hours to avoid traffic congestion.
Pursuant to the requirements of the Surface Mining and Reclamation Act of 1975 (SMARA), a Reclamation Plan for the quarry was approved by the County of Orange when the property was part of its unincorporated area. The City of Anaheim now has jurisdiction over the Reclamation Plan since the site is within the current City limits. The extraction operations resulted in removal of less sand and gravel mining than shown on the approved plan and the improvements associated with the SR-241 corridor removed some land features that were shown as retained under the approved reclamation plan. The Reclamation Plan is being refined by Robertson s, in coordination with the City Anaheim, to reflect current site conditions.
Robertson s is responsible for completion of actions required by the Reclamation Plan. These actions include, but are not limited to, remediation of hazardous materials, and grading to ensure geotechnical stability of the site. Implementation of the Reclamation Plan is not part of the proposed project and will precede construction of the proposed project. It is estimated that implementation of the Reclamation Plan, including remediation of hazardous materials will be completed by June 2005. Refer to Section 4.10, Hazards and Hazardous Materials, for additional information regarding Robertson s and the quarry operations and site conditions.
Information regarding the former clay mine and rocket fuel test site is also provided in Section 4.10.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-2 Land Use and Planning Surrounding Land Uses
The Mountain Park Specific Plan site is located within the City of Anaheim s Hill and Canyon Community Policy Area as designated in the Anaheim General Plan. As stated in the City of Anaheim General Plan and Use Element “The Hill and Canyon Area is home to thousands of hillside residents and one of Orange County s most desired communities. Scenic views, wellplanned residential development, access to a variety of natural, scenic and recreational resources like the Santa Ana River, Deer Canyon Park Preserve, and the Anaheim Hills Golf Course, all contribute to the sense of pride felt by area residents.” The project site is surrounded by existing development to the west and north within the cities of Anaheim and orba inda, respectively. The areas to the east and south of the project site are undeveloped open space areas with the exception of an approximate 15-acre parcel designated for residential uses, owned by Robertson s that is located directly southeast of the quarry lease area (refer to Exhibit 4.1-1). Following is a description of the existing and planned land uses surrounding the project site.
North
As shown on Exhibit 4.1-1, the Riverside Freeway (SR-91), Featherly Regional Park, Santa Ana River and various residential, commercial, and institutional uses in the City of orba inda are located north of the project site. SR-91, Featherly Regional Park, and the Santa Ana River provide a significant buffer between the project site and existing development within the City of orba inda on the north side of SR-91.
x City of orba inda – The southern jurisdictional boundary of the City of orba inda extends along SR-91, as depicted on Exhibit 4.1-1. Existing land uses north of the Santa Ana River, including hillside residential areas, are within the City of orba inda.
There are some commercial and institutional uses along a Palma Avenue.
Riverside Freeway (SR-91) – SR-91 is a major east-west transportation route in Southern California that extends from os Angeles County to Riverside County and is used by more than 200,000 motorists and truckers daily. The toll road express lanes managed by the Orange County Transportation Authority (OCTA) extend along SR-91 between the Costa Mesa Freeway (SR-55) and the Riverside/Orange County line.
SR-91 is a Caltrans facility and currently has four general-purpose lanes and two toll lanes in each direction. Section 4.7, Traffic and Circulation provides additional information related to SR-91 and planning efforts for future improvements to this facility.
The most notable planning effort is preparation of a Riverside County to Orange County Major Investment Study (MIS) currently being prepared by OCTA, the Riverside County Transportation Commission (RCTC) and Foothill/Eastern Transportation Corridor Agencies (F/ETCA).
The segment of SR-91 between SR-55 and the Weir Canyon Road interchange, totaling
4.5 miles and running along the banks of the Santa Ana River, is designated as a State Scenic Highway. East of the Weir Canyon Road interchange, SR-91 is designated as an eligible State Scenic Highway. The significance of the scenic highway designation is further discussed in Section 4.2, andform and Aesthetics. x Featherly Regional Park – Featherly Regional Park is a 795-acre camping (overnight use) facility located north of the project site between SR-91 and the Santa Ana River.
The park is owned by the County of Orange and managed by the Harbors, Beaches, and Parks Department. ikewise, the 66-acre Canyon R Park at Featherly is owned by the The Summit of
Anaheim Hills
Sycamore
Canyon
The
Highlands
Featherly
Park Coal Canyon
Biological Corridor
(Part of Chino Hills
State Park)
Gyp
s
um Ca
nyon
Cre
ek
City
of Anaheim
(City
of Anaheim
Sphere-of-Influence)
Windy Ridge
County
of Orange
Weir Canyon Rd
Santa Ana River
Oak Canyon Dr
Gypsum Canyon Rd
La Palma Ave
Santa Ana
Canyon Rd
SR-241
SR-91
Chino Hills
State Park
City of Yorba Linda
Aerial Perspective of the Project Area and Surrounding Land Uses Exhibit 4.1-1 March 11, 2005
Source:
Mountain Park Specific Plan Amendment EIR No. 331
Legend
Mountain Park
Project Site
Anaheim City Limits
Quarry Lease Area
The Summit of Anaheim Hills &
Sycamore Canyon Specific Plan Boundary
Robertson's Ready-Mix Parcel
(Not a part of the project)
Not To Scale
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-3 Land Use and Planning County; however, it is privately operated under a concession agreement. Canyon R Park contains 119 individual sites, an organized group and youth area camping site, two amphitheaters, and a visitor center. The remainder of Featherly Regional Park remains primarily in a natural condition, with the Santa Ana River flowing through the park. Other features provided at the park include a natural riparian wilderness area, open spaces, planted turf areas, and a variety of biological resources. SR-91 and SR-241 provide a buffer between Featherly Regional Park and the project site. Featherly Regional Park is further discussed in Section 4.13, Recreation.
x Santa Ana River – One of the largest river systems in Southern California, the Santa Ana River has largely been channelized, diverted, and urbanized. However, north of the project site, the river still retains natural conditions, supporting various tree, plant, and animal species. In the vicinity of the project site, a Class I off-road bikeway extends along the northern bank of the river, extends south on Gypsum Canyon Road, and then east within Featherly Regional Park.
x Chino Hills State Park – Chino Hills State Park, a natural open-space area in the hills of Santa Ana Canyon north of the City of orba inda and east of the project site, is a critical link in the Puente-Chino Hills Biological Corridor. Its 12,452 acres encompass stands of oaks, sycamores and rolling, grassy hills that stretch nearly 31 miles–from the Santa Ana Mountains to the Whittier Hills. Chino Hills State Park is vitally important as a refuge to many species of plants, and as a link between natural areas essential to the survival of many animal species. Section 4.6, Biological Resources provides information regarding wildlife movement, and Section 4.13, Recreation, provides information regarding recreational activities.
West
The area west of and adjacent to the project site is also within the Hill and Canyon Area of the City of Anaheim and is developed primarily with residential uses; specifically the communities of Sycamore Canyon and The Summit of Anaheim Hills (refer to Exhibit 4.1-1). The majority of the development in these communities was constructed in the 1990 s, after approval of the Mountain Park Specific Plan (SP 90-4) in 1991.
It should be noted that the Summit of Anaheim Hills Specific Plan had a condition of approval which was also made a condition of the tract maps, that the developer provide each buyer with the written information concerning the Anaheim General Plan and the existing zoning within 300 feet of the boundaries of the tract. Therefore, the developers of the tracts adjacent to the Mountain Park property were required to provide buyers with notice of the approved Mountain Park Specific Plan (SP 90-4) land uses in effect at the time of sale. x Sycamore Canyon Planned Community – This community is generally located south of SR-91, west of the proposed project site and SR-241, north of The Summit of Anaheim Hills Specific Plan community, and east of the Highlands at Anaheim Hills Specific Plan community. Weir Canyon Road traverses this community. Sycamore Canyon encompasses 325 acres and includes the following uses: 1,199 dwelling units at low to low-medium residential densities; a neighborhood shopping center; a park; a church; and open space. General Plan land use designations are shown on Exhibit 4.1-2 and include: ow Density Residential (0 to 6.5 dwelling units per acre); ow Medium Density Residential (0 to 1 dwelling units per acre); Park; and eighborhood Center. There are currently no roadways that extend to the east from this development.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-4 Land Use and Planning x The Summit of Anaheim Hills Planned Community – This community encompasses 591.3 acres and is located south of the Sycamore Canyon Specific Plan community, west of the proposed project site and SR-241, and east of The Highlands at Anaheim Hills community. The Summit of Anaheim Hills includes the following uses: 1,979 residential units; an elementary school; a park; and open space. General Plan land use designations are shown on Exhibit 4.1-2 and include: ow Density Residential (0 to
6.5 dwelling units per acre) and ow Medium Hillside Density Residential (0 to 6 dwelling units per acre) uses adjacent to the project site; ow Medium Density Residential (0 to 1 dwelling units per acre); Park; and School. Residential uses in the eastern portion of this development have views into the project site (refer to discussion provided in Section
4.2, andform and Aesthetics). There are currently no roadways that extend to the east from this development. Oak Canyon Drive was improved to its current terminus and was previously planned to extend into the Mountain Park Specific Plan area. The extension of Oak Canyon Drive into the Mountain Park project site was eliminated from the General Plan Circulation Element with the update approved in May 2004, and the existing terminus of this roadway would be modified with the proposed project as described in Section 3.3.4, Off-site Project Features.
x Other Development – A parcel located between the Sycamore Canyon Specific Plan boundary and the Mountain Park Specific Plan boundary along Santa Ana Canyon Road contains ranch structures and associated activities. The property is located at the base of the hillside, below the Sycamore Canyon development and adjacent to SR-91. The approximately four-acre parcel is zoned RS-A-43,000 (Residential, Agricultural).
East
The area east of the project site is undeveloped, and with the exception of a 15-acre parcel owned by Robertson s Ready-Mix adjacent to the existing quarry lease area (refer to Exhibit
4.1-1), is part of the Coal Canyon Biological Corridor. x Coal Canyon Biological Corridor – The 6 0-acre Coal Canyon Biological Corridor (formerly known as Coal Canyon Ecological Reserve) is part of Chino Hills State Park.
The Coal Canyon Biological Corridor encompasses Coal Canyon (649 acres) south of SR-91, and the Tecate Cypress Ecological Reserve (31 acres) north of SR-91. This corridor provides an important linkage of open space and wildlife habitat area on both sides of SR-91. The land was purchased in ovember of 2000 with 53.5 million from the following contributors: California Transportation Commission, California Department of State Parks, Wildlife Conservation Board, Pulte Homes Corporation, County of Orange, Wildlands Conservancy, anonymous donations, Reserve egacy Fund, and multiple bonds. The Coal Canyon Biological Corridor is operated and maintained by California State Parks. On-site fire roads that connect to the Santa Ana River Trail can be accessed by the public for trail use.
x Robertson s Parcel – The Cypress Canyon Specific Plan (SP 90-3) was deleted from the City of Anaheim oning Code as part of the General Plan and oning Code update approved in May 2004. A 15-acre parcel owned by Robertson s Ready-Mix is the only remaining part of the Cypress Canyon Specific Plan that could potentially be developed.
The remainder of the Specific Plan area is now part of the Coal Canyon Biological Corridor and is designated for Open Space and Uses on the General Plan and is zoned Open Space. The Robertson s parcel has a General Plan land use designation of owMedium Density Residential, and is zoned RM-3. The site could be developed with up to 140 residential units; however, any development would be subject to environmental review pursuant to CEQA.
Source:
City of Anaheim General Plan, 2004
Mountain Park Specific Plan Amendment EIR No. 331
General Plan Land Use Designations Exhibit 4.1-2
March 11, 2005
Not To Scale
1 2
3 4
4. Sycamore Canyon Specific Plan Boundary
3. The Summit of Anaheim Hills Specific Plan Boundary
2. The Highlands at Anaheim Hills Specific Plan Boundary
1. Anaheim Hills Festival Specific Plan Boundary
Specific Plan Boundary
Mountain Park Specific Plan Boundary
City Boundary
Anaheim Sphere-of-Influence
Residential
Estate Density (0-1.5 du/ac)
Low Density (0-6.5 du/ac)
Low Medium Hillside (0-6.0 du/ac)
Low Medium Density (0-18.0 du/ac)
Industrial
Institutional
Schools
Open Space
Parks
Water Uses
General Park Location
General School Location
Note: Land Use Map includes Anaheim's Sphere-of-Influence Commercial
Regional Commercial
General Commercial
Neighborhood Center
Office
Office-Low
Industrial
Open Space and Recreation
Public and Quasi-Public Facilities
R:\Projects\TIC\J020\fuscoe\ex4.1-2_020305.pdf
Limits
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-5 Land Use and Planning South
The area immediately south of the project site is the T C ACE consisting of undeveloped open space. South of the T C ACE is open space within the CCP/HCP Reserve. Information regarding the CCP/HCP Reserve was previously provided in Section 3, Project Description.
Windy Ridge shown on Exhibit 4.1-1 is a regionally significant ridgeline located south of the project site in the CCP/HCP Reserve.
Related Planning Programs
and use issues addressed in this section include the related planning programs governing existing and future conditions for the project site. The following plans and programs apply to development in and around the project site, and are discussed below: City of Anaheim General Plan, City of Anaheim oning Code, County of Orange General Plan, CCP/HCP, and Southern California Association of Governments (SCAG) Regional Comprehensive Plan and Guide.
The proposed project involves an amendment to the currently approved Mountain Park Specific Plan (SP 90-4). Allowed land uses and provisions of current SP 90-4 are discussed in Section 5, Alternatives.
City of Anaheim General Plan
The City of Anaheim General Plan is the long-range guide for growth and development in the City. Goals and policies outlined in the and Use Element of the General Plan that are relevant to the Proposed Project are identified in Table 4.1-1.
and Use Element
As previously shown on Exhibit 4.1-2, the and Use Map included in the recently approved City of Anaheim General Plan designates the project site for ow Medium Hillside Density Residential (0 to 6 dwelling units per acre), ow Medium Density Residential (0 to 16 dwelling units per acre in the Mountain Park Specific Plan area), and Open Space land uses. In addition, the and Use Map designates a small portion of the project site for Institutional uses (northwest of the Santa Ana Canyon Road/Gypsum Canyon Road intersection) and shows areas for a General Park ocation and a General School ocation (within proposed Development Area 3).
As previously noted, the project site is within the Hill and Canyon Community Policy Area.
Goals and policies of the and Use Element that are relevant to the proposed project, including goals and polices specific to the Hill and Canyon Area, are listed in Table 4.1-1.
City of Anaheim Zoning Code
The Anaheim oning Code is the primary tool for implementing the City s General Plan. It provides development standards, identifies allowable land uses, and specifies other regulations.
In addition to guiding the uses, designs and improvements of development projects, the oning Code provides detailed guidance for development based on, and consistent with, the land use policies established in the General Plan. In connection with the adoption of the General Plan update in May 2004, the City of Anaheim also approved a Municipal Code update.
The project site has a current zoning designation of Mountain Park Specific Plan (SP 90-4).
Section 1 .112 of the City s oning Code includes the current zoning for the site based on the currently approved Mountain Park Specific Plan (SP 90-4). As noted in Section 2.3, Project Approval Actions, as part of the proposed project, the City s oning Code is proposed to be Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-6 Land Use and Planning amended to incorporate the zoning for the site as outlined in the Mountain Park Specific Plan Amendment.
The Mountain Park Specific Plan area is also included in the City s Scenic Corridor (SC) Overlay one described in Section 1 .1 of the oning Code. The SC Overlay one provides guidelines for tree preservation and sets forth requirements and standards for residential, commercial, industrial, as well as public and special purpose zones within SC Overlay one boundaries.
County of Orange General Plan, Land Use Element
The southern portion of the project site is within an unincorporated area of the County of Orange within the City of Anaheim s sphere-of-influence. Therefore, it is appropriate to review the consistency of the project with relevant goals and policies of the County of Orange General Plan and Use Element (refer to Table 4.1-1).
Natural Communities Conservation Plan/Habitat Conservation Plan and The Nature Conservancy Anaheim Conservation Easement
As discussed previously in Section 2.2, Project Background, and Section 3, Project Description, 1, 53 acres of the project site have been dedicated for open space: 940 acres within the CCP/HCP Reserve and 913 acres within the Anaheim Conservation Easement (ACE).
Exhibit 3- , Open Space, Trail and Bikeway Plan, identifies the open spaces areas associated with the proposed project. The provisions of the CCP/HCP and T C ACE limit development and disturbance within these open space areas. The provisions of the CCP/HCP relative to biological resources are further discussed in Section 4.6, Biological Resources.
SCAG Regional Comprehensive Plan and Guide
The SCAG Regional Comprehensive Plan and Guide (RCPG) include core and ancillary regional policies that apply to a specific project being evaluated. The RCPG contains two types of policies: core policies that pertain to SCAG s statutory mandates in the areas of transportation, air quality, housing, hazardous waste and water quality; and ancillary policies that provide voluntary guidance on a broader range of topics including open space, energy and water supply, for example. Table 4.1-1 identifies specific RCPG core regional policies and ancillary policies relevant to the proposed project and provides an evaluation of the consistency of the proposed project with these goals and policies.
4.1.2 PROJECT IMPACT ANALYSIS
Thresholds of Significance
As previously discussed in Section 2.3.2, Effects Found ot to be Significant, during preparation of the Initial Study, the City of Anaheim determined that the proposed project would not have a significant impact for the following threshold and no further analysis of this issue is presented in this section.
x The project would result in a significant impact related to land use and planning if it would physically divide an established community.
The following criterion is based on the Initial Study checklist contained in Appendix G of the State CEQA Guidelines. The proposed project would result in a significant impact related to land use and planning if it would:
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-7 Land Use and Planning
1. Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect.
Impact Analysis
As discussed above, there are a number of land-use related planning programs that are relevant to the proposed project. Table 4.1-1 provides an analysis of the consistency of the proposed project with specific goals and policies. The City of Anaheim General Plan, the CCP/HCP Reserve and the T C ACE dictate land use development in and surrounding the project site. Following is an evaluation of the project in relation to specific land uses addressed in these programs.
On-site Project Feature Impacts
City of Anaheim General Plan
The City of Anaheim General Plan is the long-range guide for growth and development in the City and outlines existing land uses and public facilities as well as plans for future development. and use designations and policies are developed to provide compatibility between existing and future land uses.
The proposed project involves the development of residential uses, public facilities, recreational uses and associated infrastructure on a site that is predominantly undeveloped or dedicated for open space. There are established communities to the north and west of the project site.
SR-91 and the Santa Ana River physically buffer existing development to the north of the site within the City of orba inda from the proposed project. The proposed project would not directly impact established communities to the north.
The area west of the project site is developed with two established communities: Sycamore Canyon and The Summit of Anaheim Hills. These communities currently represent the eastern edge of existing development in the City of Anaheim. A key land use consideration for the proposed project is the compatibility of proposed uses with these adjacent, existing uses. The proposed project would not directly impact these communities. Conversely, the project would continue an existing pattern of residential development in the Hill and Canyon Area. As previously shown on Exhibit 4.1-1, existing residential uses within The Summit of Anaheim Hills Specific Plan area are immediately adjacent to the western boundary of the project site.
Proposed Development Areas 3 and 7 include the only development associated with the Mountain Park Specific Plan west of SR-241. These proposed Development Areas are designated for ow-Medium Hillside Density Residential uses (0 to 6 dwelling units per acre), consistent with the land use designation for the adjacent developed areas in the Summit of Anaheim Hills. The remaining area west of and adjacent to the project site is designated for ow Density Residential uses (0 to 6.5 dwelling units per acre) and Open Space. The City s and Use Plan provides consistent land use designations in this area to ensure that existing and future residential uses are similar and provide residential areas that have an overall cohesive character. The proposed residential uses provide a continuation of the development patterns that have already been established through Specific Plan developments to the west. The proposed extension of Weir Canyon Road would allow existing residences in surrounding communities to easily access proposed public facilities including a school site and community park.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1- Land Use and Planning It should be noted that potential indirect impacts to surrounding land uses associated with visual changes, air emissions, and increased noise are addressed in the following sections of this EIR:
Section 4.2, andform and Aesthetics; Section 4. , Air Quality; and Section 4.9, oise.
The proposed project would not impact the quarry operations on-site. As previously noted, Robertson s and All American Asphalt extractions license agreement expired in December 2004, and all remaining materials and equipment should be removed by June 2005, consistent with the provisions of the extraction license agreement with the property owner. These uses will be removed and the site reclaimed in accordance with an approved Reclamation Plan, prior to and regardless of initiation of development in this area (Development Area 5). Because the Reclamation Plan is an approved plan and its actions will remediate the area and return the land to its pre-quarry conditions, no land use impact would occur with implementation of the Reclamation Plan.
atural Communities Conservation Plan/Habitat Conservation Plan and The ature Conservancy Anaheim Conservation Easement
As previously noted, the majority of the project site is preserved in open space through the CCP/HCP Reserve and the T C ACE. Additionally, the site is surrounded by preserved open space areas to the east and south. The proposed project has been designed to provide a transition from developed area to sensitive, and protected open space. As shown on Exhibit 3- , Open Space, Trail and Bikeway Plan, the proposed development areas are concentrated in the northern portion of the project site. “Other Open Space” is proposed in the areas adjacent to the development areas. This open space, which would be maintained by the projects HOA, provides a transition to the T C ACE and CCP/HCP Reserve open space areas. Additionally, the majority of the eastern portion of the project site is open space, providing a buffer between Development Areas 1 and 5 and the Coal Canyon Biological Corridor east of the project site. In summary, the proposed project provides for the preservation of 72 percent of the site in open space, and would not interfere with the accomplishment of various goals related to the preservation and protection of natural resources that were the basis for previously establishing areas of dedicated open space. Most of these lands were previously identified for priority protection through comprehensive planning programs, including the CCP/HCP (1996), The ature Conservancy Conservation Easements (2002), and purchase of the Coal Canyon Biological Corridor (2000).
Off-site Project Feature Impacts
As described in Section 3.3.4, proposed off-site project features include roadway and drainage improvements, and connections to off-site utilities. The proposed SARI line connection for the east basin sanitary sewer facilities would traverse privately-owned property including a commercial parking lot within SA I Ranch in the City of orba inda. The construction activities would cause a temporary impact to existing land uses; however, this would not be considered significant as access to the commercial establishments would be maintained. This alternative would also require construction activities within existing street right-of-way (Santa Ana Canyon Road, Gypsum Canyon Road, and SA I Ranch Parkway) causing a temporary disruption to traffic. The property owner/developer would be required to obtain appropriate permits and authorization from affected property owners, and jurisdictions (City of Anaheim, City of orba inda, Caltrans, and Orange County Sanitation District) prior to initiation of construction activities. Additional information regarding the proposed sewer line connections is provided in Section 4.12.5, Sanitary Sewer.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-9 Land Use and Planning Drainage improvements in Featherly Regional Park would not impact existing recreation facilities and would not result in significant land use impacts. However, these improvements would require approval from the County of Orange Harbors, Beaches and Parks Department.
Proposed improvement to Weir Canyon Road and Oak Canyon Drive would not directly impact existing land uses, including adjacent residences; however, there would be short-term construction-related air quality and noise impacts which are addressed in Sections 4. and 4.9, respectively.
Caltrans-Related Project Feature Impacts
The SR-241/Weir Canyon Road Interchange and Mountain Park Drive bridge overcrossing are transportation improvements associated with the existing SR-241 that would be implemented as part of the proposed project. These facilities have been assumed in previous environmental documentation for SR-241 and the Mountain Park project site. Additionally, the bridge overcrossing provides a link between the proposed Development Areas located east and west of SR-241. o land use related impacts would occur with these facilities and no mitigation is required. Other roadway improvements and slope and drainage modifications within Caltrans right-of-way would occur along existing roadways, would be temporary, and would not result in significant land use impacts. It should be noted that any project features that require construction in Caltrans right-of-way would require an encroachment permit from Caltrans.
As previously discussed, there are a number of ongoing planning efforts for improvements to the portion of SR-91 adjacent to and north of Development Area 5. These planning efforts are described in Section 4.7, Traffic and Circulation. However, from a land use perspective, it is important to address the physical relationship of the proposed project to potential future facilities. As noted above, the remedial grading for Development Area 5 would encroach in Caltrans right-of-way. Exhibit 4.1-3 graphically depicts the relationship of the direct impact limits for Development Area 5 to the limits of freeway improvements that may be implemented in the future along SR-91. The anticipated limit of future roadway improvements is based on review of available information from Caltrans regarding the Riverside County to Orange County MIS and assumes a freeway configuration that extends furthest south. As shown, the proposed project would not interfere with implementation of anticipated short- or long-range improvements to SR-91.
Land-use Related Policy Consistency Analysis
Table 4.1-1 addresses the consistency of the proposed project with the relevant land userelated goals and policies outlined in the City of Anaheim General Plan, County of Orange General Plan, and SCAG RCPG. ote that goals and policies related to other topical issues (recreation, biological resources, etc.) are discussed for each topical issue in the respective sections of this EIR. As identified through the consistency analysis presented in Table 4.1-1, the proposed project, including off-site project features, the SR-241/Weir Canyon Road interchange and Mountain Park Drive bridge overcrossing, and other project features within Caltrans right-of-way would not conflict with any applicable land use plan, policy or regulation of an agency with jurisdiction over the project adopted for the purpose of avoiding or mitigating an environmental effect.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-10 Land Use and Planning TABLE 4.1-1
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
GOALS AND POLICIES CONSISTENCY ANALYSIS
City of Anaheim General Plan
and Use Element
GOAL 1.1 Preserve and enhance the quality and
character of Anaheim s mosaic of unique
neighborhoods.
Policy 2: Ensure that new development is
designed in a manner that preserves the quality
of life in existing neighborhoods.
The project site is located in the eastern portion of the City of Anaheim adjacent to the existing Sycamore Canyon and The Summit of Anaheim Hills Specific Plan communities. As
discussed above, the proposed project would be consistent with and preserve the character of these existing
neighborhoods by providing land uses similar to and
compatible with the land uses in adjacent residential
communities, and by providing land features/berms and
landscaping that provide a transition from existing to proposed land uses including the school and park sites, and Mountain Park Drive. The proposed project also provides for the
preservation of 2,163 acres of open space that would benefit existing and future residents in the City. The proposed Mountain Park Specific Plan would be consistent with Goal 1.1 and Policy 2 to preserve the quality and character of the existing neighborhoods in the City.
Policy 3: Encourage future development to provide
functional public spaces that
foster social interaction.
The proposed project includes an approximate 15-acre public community park and adjacent school site as well as a system of on-site and off-site trails and bikeways and a trail staging area that are accessible to the public. The provision of these uses is consistent with Policy 3 to provide functional public spaces for social interaction. In addition, the project includes a private recreation center and smaller parks within the
development areas for project residents.
GOAL 2.1 Continue to provide a variety of quality
housing opportunities to address the City s diverse
housing needs.
Policy 6: Ensure quality development through
appropriate development standards and by
adherence to related Community Design Element
policies and guidelines.
The proposed project would provide a mix of housing units, including single-family detached and single-family attached dwelling units, on lots ranging in size from 1,600 square feet to 7,000 square feet. As noted previously, Design Guidelines for the proposed project have been developed and are included as part of the Mountain Park Specific Plan Amendment. These Design Guidelines take into consideration policies outlined in the General Plan Community Design Element (refer to
discussion provided in Section 4.2, andform and Aesthetics), and address the unique character of the project site and surrounding areas.
Goal 3.1 Pursue land uses along major corridors
that enhance the City s image and stimulate
appropriate development at strategic locations.
Policy 3: Ensure quality development along
corridors through adherence to established
development standards and Community Design
Element goals, policies, and guidelines.
Policy 4: Continue to pursue additional open
space, recreation, and landscaping amenities
along major transportation routes.
SR-91 is adjacent to the project site to the north, and SR-241 traverses the western portion of the site in a north-south direction. Under existing conditions, the quarry site is a prominent land use feature on the project site that can be seen from SR-91 and SR-241. As discussed throughout this EIR, and described in Section 3, Project Description, the quarry operations will cease prior to initiation of construction activities east of SR-241. As described in Section 4.2, andform and Aesthetics, an undulating landscaped slope would be provided along the northern edge of Development Area 5, adjacent to SR-91 which would screen views of the community from the SR-91. In addition, landscaped slopes would be provided along the western edge of Development Area 4 to screen views of the project from SR-241, along Weir Canyon Road and at the Weir Canyon Road/SR-241 interchange. As noted above, the project also includes the preservation of open space.
Specifically, the majority of SR-241 within the project
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 4.1-1 Continued
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-11 Land Use and Planning
GOALS AND POLICIES CONSISTENCY ANALYSIS
site is adjacent to preserved open space areas (refer to Exhibit 3- in Section 3, Project Description).
These project features as well as the overall character of the proposed development would enhance the City s image along SR-241 and SR-91 in this portion of the City.
GOAL 4.1 Promote development that integrates
with and minimizes impacts to surrounding land
uses.
As discussed previously, the Mountain Park Specific Plan Amendment proposes development that is consistent and
compatible with existing surrounding land uses. Specifically, the residential densities ( ow-Medium Hillside Density
Residential and ow-Medium Density Residential) proposed by the Mountain Park Specific Plan are similar to those in adjacent neighborhoods. Attractive landscaping and sensitive lighting plans would further enhance the proposed Development Areas.
Buffering through landscaped slopes and berms would be used to transition from existing to proposed land uses, minimizing potential land use impacts to existing adjacent land uses. Refer to Section 4.2, andform and Aesthetics, for additional
discussion.
Policy 1: Ensure that land uses develop in
accordance with the and Use Plan and oning
Code in an effort to attain land use compatibility.
The proposed project involves implementation of the Mountain Park Specific Plan Amendment that is consistent with the land use designations identified on the City of Anaheim s and Use Plan. The City of Anaheim oning Code would also be
amended to incorporate the oning and Development
Standards for the site. The various components of the
proposed project are described in Section 3, Project
Description.
Policy 2: Promote compatible development
through adherence to Community Design Element
policies and guidelines.
Development of the Mountain Park Specific Plan area would be consistent with the City s Community Design Element policies and guidelines as discussed in Section 4.2, andform and Aesthetics. The project has been designed to ensure internal compatibility of the proposed land uses and compatibility with existing adjacent neighborhoods. Refer to the discussion provided above regarding the relationship of the proposed project to surrounding land uses.
Policy 3: Ensure that developers consider and
address project impacts upon surrounding
neighborhoods during the design and
development process.
As discussed above, the Mountain Park Specific Plan area would be implemented in a manner that minimizes impacts on surrounding neighborhoods through development of land uses of a similar density, and use of transitional landscaping and land features/berms. Specifically, landscaped berms and slopes would be provided along the western edge of
Development Areas 3 and 7, which are adjacent to existing residences. Refer to Section 4.2, andform and Aesthetics, for additional discussion of these design features. Additionally, potentially indirect impacts to adjacent uses resulting from air emissions, and increased noise are addressed in Section 4. , Air Quality, and Section 4.9, oise of this EIR. Mitigation measures are provided to reduce impacts to the extent
feasible.
Policy 4: Require new or expanded uses to
provide mitigation or buffers between existing
uses where potential adverse impacts could
occur.
The proposed project would provide landscape and natural buffers between the Mountain Park Specific Plan project site and the existing residential uses to the west. Refer to discussions provided above and in Section 4.2, andform and Aesthetics, related to landscape and natural buffers.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 4.1-1 Continued
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-12 Land Use and Planning
GOALS AND POLICIES CONSISTENCY ANALYSIS
Policy 6: Require landscape and/or open space
buffers to maintain a natural edge for proposed
private development directly adjacent to natural,
public open space areas.
The project boundaries near existing residential uses would incorporate the landscape concept described in Section 3, Project Description, and shown on Exhibit 3-14, andscape Concept Plan, which includes berms, trees, and vegetation.
The visual character of project site with implementation of the project is discussed in Section 4.2, andform and Aesthetics.
As shown on the landscape plan, and consistent with Policy 6, transitional slope planting would be provided between
proposed Development Areas and natural open space areas and existing development to the west.
Green Element
GOAL .1: Preserve natural, scenic, and
recreational resources; continue to ensure
residential neighborhoods are safe, well-maintained
places to live; and continue to provide necessary
community services and facilities.
The Mountain Park Specific Plan includes 2,163 acres of preserved open space (72 percent of the project site). The development would incorporate natural, scenic, and recreation resources that complement and enrich surrounding
neighborhoods. As stated previously, the project site would also include a 15-acre community park as well as on-site trails and bikeways.
The zoning for the Mountain Park Specific Plan area would be amended as part of the project to reflect the proposed oning and Development Standards. The proposed Specific Plan also includes Design Guidelines that would be implemented with the proposed project and would ensure implementation of land uses with high quality construction and architectural design.
Compliance with the provisions of the Mountain Park Specific Plan would result in quality development consistent with applicable policies and guidelines in the City s Community Design Element (refer to discussion provided in Section 4.2, andform and Aesthetics).
Policy 1: Encourage the preservation of scenic
vistas and views through Green Element Policies
and oning Code development standards.
The proposed project encourages the preservation of scenic vistas and views. Refer to Section 4.2, andform and
Aesthetics, for a consistency analysis with the Green Element policies and applicable oning Code development standards.
Policy 3: Provide adequate passive and active
park and recreational resources through the goals
and policies of the Green Element.
The proposed project includes the preservation of
approximately 2,163 acres of open space. Additionally, a 15- acre public park, several smaller private parks, and a system of trails that would connect to existing trails that are a part of the County of Orange Master Plan of Regional Riding and Hiking Trails are proposed. Refer to Section 4.13, Recreation, for additional discussion of park and recreational resources and relevant goals and policies.
Policy 4: Ensure quality development through the
policies and guidelines of the Community Design
Element and oning Code development
standards.
The proposed project involves implementation of the Mountain Park Specific Plan Amendment that is consistent with the City of Anaheim s and Use Plan. The Specific Plan Amendment
includes zoning and development standards. With adoption of the Specific Plan Amendment, the City of Anaheim oning
Code would also be amended to incorporate the amended
zoning and development standards for the site.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 4.1-1 Continued
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-13 Land Use and Planning
GOALS AND POLICIES CONSISTENCY ANALYSIS
Design Guidelines for the proposed project have been
developed and are included as part of the Mountain Park Specific Plan Amendment. These Design Guidelines take into consideration policies outlined in the Community Design Element, and address the unique character of the project site and surrounding areas. Refer to Section 4.2, andform and Aesthetics, which provides an analysis of the consistency of the project with goals and policies outlined in the Community Design Element.
Policy 6: Continue to work with Caltrans and
OCTA to protect residential neighborhoods from
bypass traffic impacts associated with congested
conditions on the Riverside (SR-91) Freeway.
The proposed project is planned as a guard gated community with gates provided along Mountain Park Drive and Gypsum Canyon Road. The restricted access prevents non-residents from traveling through the project site and surrounding neighborhoods to bypass traffic associated with SR-91.
County of Orange General Plan, Land Use Element
Policy 6: ew Development Compatibility: To
require new development to be compatible with
adjacent areas.
The proposed project would be compatible with surrounding land uses, including developed areas within the City of Anaheim to the west, and undeveloped open space within
unincorporated area of the County of Orange to the south. The landscape concept for the proposed project is described in Section 3 and has been designed to transition from developed area to natural hillside open space, including areas within the T C ACE and CCP/HCP Reserve. Refer to discussion
provided previously regarding compatibility of the proposed land uses with existing land uses, specifically residential neighborhoods to the west of the project site.
SCAG Regional Comprehensive Plan and Guide
Growth Management Chapter
Policy 3.10: Support local jurisdictions actions to
minimize red tape and expedite the permitting
process to maintain economic vitality and
competitiveness.
The proposed project would be carried out within the City of Anaheim, according to the permit and planning requirements set by the City. By preparing an overall Specific Plan
amendment, the project would provide guidelines for
development that is intended to result in more efficient planning and permitting.
Policy 3.12: Encourage existing or proposed local
jurisdictions programs aimed at designing land
uses which encourage the use of transit and thus
reduce the need for roadway expansion, reduce
the number of auto trips and vehicle miles
traveled, and create opportunities for residents to
walk and bike.
Based on review of the City of Anaheim General Plan
Circulation Element, the project site is not in proximity to existing transit facilities. However, it would not preclude implementation of such facilities should they be proposed in the future. Additionally, the proposed project provides bikeways and trails, which would provide opportunities for future residents to walk or bike to surrounding areas.
Policy 3.14: Support local plans to increase
density of future development located at strategic
points along the regional commuter rail, transit
systems, and activity centers.
The proposed project is not located along a regional commuter rail route and is not in proximity to any transit systems.
However, future project residents would be able to access SR-91 and SR-241 which are adjacent to the project site and travel to the nearest transit centers and activity centers.
Policy 3.17: Support and encourage settlement
patterns which contain a range of urban densities.
The proposed project is consistent with the 2004 City of Anaheim General Plan Update, which provides for a full range of urban densities and land uses within its boundaries. The project area itself is composed of a balance of residential, institutional, open space and public uses. The proposed project is consistent with this policy.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 4.1-1 Continued
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-14 Land Use and Planning
GOALS AND POLICIES CONSISTENCY ANALYSIS
Policy 3.1 : Encourage planned development in
locations least likely to cause adverse
environmental impact.
As presented in Section 4 of this Draft EIR, environmental impacts resulting from the project would be mitigated to below a level of significance, with the exception of short-term and long-term air quality impacts, and landform changes and cumulative air quality impacts. The proposed Development Areas are concentrated in the northern portion of the project site, and the southern portion of the site with the most environmentally sensitive areas, including areas within the T C ACE and CCP/HCP Reserve, would be within preserved
open space areas.
Policy 3.19: SCAG shall support policies and
actions that preserve open space areas identified
in local, state and federal plans.
The Draft EIR discusses the permanent open space dedication of 2,163 acres. The CCP/HCP Reserve and T C ACE open
space areas on site would be preserved consistent with the provision of these programs. Additional discussion of these programs is provided in Section 3, Project Description and Section 4.6, Biological Resources.
Policy 3.24: Encourage efforts of local
jurisdictions in the implementation of programs
that increase the supply and quality of housing
and provide affordable housing as evaluated in
the Regional Housing eeds Assessment
(RH A).
Section 4.11, Population and Housing, fully addresses the proposed project s contribution to the City of Anaheim fair share of regional housing needs. The 2,500 units included in the proposed project may not be available within the timeframe of the current state-mandated 199 -2005 RH A targets.
However, the RH A targets and Housing Element are
scheduled to be updated in 2006, and every five years
thereafter. The 2,500 new units included in the proposed project would be available to help satisfy the City s future RH A total construction need goals. The proposed project would provide above-moderate income units that contribute to citywide housing need targets,
Open Space Chapter, Resource Production
Policy 9.07: Maintain adequate viable resource
production land, particularly lands devoted to
commercial agriculture and mining operations.
The 300-acre Robertson s Ready Mix facility is currently located on the project site. Robertson s extraction license agreement with The Irvine Company terminated in December 2004. All equipment and facilities will be removed by June 2005 and the site will be remediated (refer to discussion provided in Section 4.10, Hazards and Hazardous Materials).
Implementation of the Reclamation Plan is not part of the proposed project but development within Development Area 5 would proceed only after the reclamation is completed. As discussed in Section 2.3.2, Effects Found ot to be Significant, the majority of the economically viable sand and gravel minerals onsite will have been removed when the Robertson s facility closes. Additionally, there are no agricultural resources onsite that would be impacted by the project.
Regional Growth isioning Principles
Principle 1: Improve mobility for all residents.
x Encourage transportation investments and
land use decisions that are mutually
supportive.
x ocate new housing near existing jobs and
new jobs near existing housing,
x Encourage transit-oriented development.
The proposed project locates new housing near an existing job concentration in the Orange County subregion in general and Anaheim in particular. This is discussed fully in Section 4.11, Population and Housing. Further, the project is located adjacent to SR-241 and SR-91.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
TABLE 4.1-1 Continued
CONSISTENCY OF THE PROPOSED PROJECT WITH
LAND USE-RELATED GOALS AND POLICIES
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-15 Land Use and Planning
GOALS AND POLICIES CONSISTENCY ANALYSIS
x Promote a variety of travel choices.
Principle 2: Foster livability in all communities.
x Promote infill development and
redevelopment to revitalize existing
communities.
x Promote developments which provide a mix
of uses.
x Promote “people scaled,” walkable
communities.
x Support the preservation of stable, singlefamily neighborhoods.
The proposed project provides a mix of residential types arranged in livable neighborhoods. earby recreation
opportunities and close proximity to employment
concentrations in Anaheim further reinforce this policy.
Principle 3: Enable prosperity for all people
x Provide in each community a variety of
housing types to meet the housing needs of
all income levels.
x Support educational opportunities that
promote balanced growth.
x Ensure environmental justice regardless of
race, ethnicity or income class.
x Support local and state fiscal policies that
encourage balanced growth
x Encourage civic engagement
The proposed project contributes to balanced housing,
population and employment growth as set forth in the 2004 Anaheim General Plan Update and certified Housing Element (refer to Section 4.11, Population and Housing).
Principle 4: Promote sustainability for future
generations.
x Preserve rural, agricultural, recreational and
environmentally sensitive areas.
x Focus development in urban centers and
existing cities.
x Develop strategies to accommodate growth
that uses resources efficiently, eliminate
pollution and significantly reduce waste.
x Utilize “green” development techniques.
The proposed project preserves 2,163 acres of environmentally sensitive habitat and open space. Further, the project focuses population and housing growth within incorporated boundaries adjacent to existing development in the City of Anaheim.
4.1.3 MITIGATION PROGRAM
o significant land use impacts have been identified; therefore, no mitigation is required.
4.1.4 CUMULATIVE IMPACTS
Over the past two decades, the Hill and Canyon Area on both sides of SR-91 (cities of Anaheim and orba inda) has been developed with hillside residential communities. ew, commercial and institutional uses have also been introduced to the area. With the recent dedication of the Chino Hills State Park and T C ACE as open space, the area is essentially built out with the exception of some remaining infill development areas. Consequently, the Mountain Park Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.1 and Use-030 05.doc 4.1-16 Land Use and Planning Specific Plan project site is one of the last large properties designated for residential land uses in this portion of Orange County.
From the standpoint of land use impacts, the proposed project would result in a new community that is compatible with surrounding land uses. Specifically, the Development Areas nearest existing neighborhoods would be developed into ow-Medium Hillside Density residential communities, consistent with the existing communities. The design of the proposed residential uses would need to comply with the proposed oning and Development Standards and Design Guidelines set forth in the proposed Mountain Park Specific Plan Amendment. Transitional grading and landscaping would be provided along the perimeter of Development Areas to provide a transition from new land uses to existing and proposed open space areas. For these reasons, the project s contribution to cumulative land use and planning impacts is less than significant.
4.1.5 LEVEL OF SIGNIFICANCE AFTER MITIGATION
The proposed project would not result in any significant unavoidable impacts related to land use and relevant planning.
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.2 Aesthetics-031405.doc 4.2-1 Landform and Aesthetics
4.2 LANDFORM AND AESTHETICS
This section describes the existing landform and aesthetic character of the project area and provides views of the site from surrounding vantage points. Viewsheds have been identified and the visibility of the potential impacts to the project site has been determined. The potential visual changes resulting from implementation of the project are addressed. The information presented in this section is based on the field reconnaissance, review of the site and aerial photographs, and computer generated visual simulations prepared for the project.
4.2.1 EXISTING CONDITIONS
Landform/Topography
The project site is located generally in Gypsum Canyon. The existing site topography was previously shown on Exhibit 3-3, Existing Topography, in Section 3. Existing elevations range from approximately 340 feet above mean sea level (amsl) in the northern portion to approximately 2,200 feet amsl in the southern portion of the project site. Major ridgelines within and surrounding the project site are also shown on Exhibit 3-3, including Windy Ridge to the south.
The project site consists of a large open canyon feature located within a perimeter of ridges.
The ridges on-site, for the most part, are elongated with moderate to very steep side slopes ranging from 3:1 to 1:1 (horizontal to vertical). The sides of the ridges are often incised by swales and re-entrants from the canyons, which are generally narrow and V-shaped, with the exception of the main canyons, which are fairly wide and flat-bottomed. For purposes of this analysis, the existing landform/topography is considered a scenic resource.
Specific landform features that occur on-site are rock outcroppings. Rock outcroppings are defined as an area where natural undisturbed bedrock may be exposed, generally in areas that are too steep for colluvium to form. Within the southern portion of Development Area 1, there is a steeply eroded drainage, which exposes badland topography. Also within the southern portion of Development Area 1, there is an east-west trending drainage, which crosses the site and exposes another rock outcropping. Within Development Areas 3 and 7, rock outcroppings exist in the near vertical canyon walls that are exposed along the boundary between SR-241 and Development Areas 3 and 7. Within Development Area 4, a significant rock outcropping exists near the ridgeline that separates the northern and southern portions of Development Area 4.
Aesthetics
As described in Section 4.1, Land Use and Planning, the project site is currently undeveloped with the exception of the on-site quarry facility located in the northeastern portion of the project site. The areas surrounding the project site to the north are developed with residential uses in the City of Yorba Linda, SR-91 and the Santa Ana River. Land uses to the west include residential in the City of Anaheim (refer to discussion provided in Section 4.1, Land Use and Planning). Land uses east and south of the project site consist of permanent open space associated with the NCCP, TNC ACE, or Chino Hills State Park. Exhibit 4.1-1 in Section 4.1-1 provides an aerial photograph of the project site and surrounding areas. Due to the project’s location on the north and northwestern hillsides of the City of Anaheim which are at higher elevations and visible from surrounding areas, much of the project site is visible from a number of vantage points, including distant areas. Views from surrounding areas are described below from 25 vantage points, as shown in Exhibit 4.2-1, View Locations. It should be noted that although all 25 vantage points are described below, existing photos from vantage points that are Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.2 Aesthetics-031405.doc 4.2-2 Landform and Aesthetics representative of views from each direction are provided. These representative photos are shown in Exhibits 4.2-2 through 4.2-7. Descriptions of proposed conditions based on visual simulations that have been prepared for the project are provided in Exhibits 4.2-8 through
4.2-29 in the Impacts discussion (Section 4.2.2).
Existing Views from the North
Existing views N-1, N-4, N-6, and N-8 are representative vantage points from the north. The remaining existing views from the north (N-2, N-3, N-5, N-7, N-9, and N-10) are described below but are shown in Section 4.2.3 for comparison to proposed views (visual simulations). x View N-1 – View from a public roadway (intersection of La Palma Avenue and Weir Canyon Road) looking southeast toward the project site. View N-1 on Exhibit 4.2-2 depicts the view from the intersection of La Palma Avenue and Weir Canyon Road and is representative of views from these major public roadways in the City of Yorba Linda north of the project site. The foreground and middleground views are of existing urbanized development in the City of Yorba Linda. The residences located in the Sycamore Canyon development in Anaheim Hills are visible in the middleground.
Background views consist of prominent ridges including Windy Ridge. x View N-2 – View from Eastside Community Park looking southeast toward the project site. View N-2 (refer to Exhibit 4.2-8 in Section 4.2.3) depicts the view from Eastside Community Park, an active sports park in the City of Yorba Linda. This view is representative of views from hillside vantage points in this area of the City of Yorba Linda northwest of the project site. The foreground views are of existing urbanized development in the City of Yorba Linda, including ornamental landscaping and rooftops of residences and commercial buildings. Middleground views are of SR-241, the quarry, and hills adjacent to SR-241. The existing residential developments (Sycamore Canyon, The Summit of Anaheim Hills) located in Anaheim Hills are also visible in the middleground views. Background views consist of the hills and prominent ridgelines within and south of the project site.
x View N-3 – View from a public roadway (Paseo de Toronto) looking south toward the project site. View N-3 (refer to Exhibit 4.2-9 in Section 4.2.3) depicts the view from Paseo de Toronto, which is representative of views from residential uses in the City of Yorba Linda north of the project site. Foreground views are of the ornamental landscaping and rooftops of residences located within the proximate existing residential development. Middleground views are of the SR-241 and its interchange with SR-91, the quarry, and hills adjacent to SR-91. Background views consist of SR-241 (which bisects the ridgeline in a north-south direction) and the hills and prominent ridgelines within and south of the project site.
x View N-4 – View from a public roadway (Kodiak Mountain Drive) looking south toward the project site. View N-4 on Exhibit 4.2-2 depicts the view from Kodiak Mountain Drive and similar to View N-3 is representative of views from hillside residential uses in the City of Yorba Linda north of the project site. Foreground views are of ornamental landscaping and rooftops of existing residences located within the residential development. Middleground views are of SR-241 and its interchange with SR-91, the quarry, and hills adjacent to SR-91 and SR-241. Background views consist of SR-241 (which bisects the ridgeline in a north-south direction) and the hills and prominent ridgelines within and south of the project site.
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
!(
A-4
W-2
DA5
DA2
DA1
DA4
DA4
DA6
DA3
DA7
Santa Ana Canyon Rd
Gypsum Canyon Rd
Oak Canyon Dr
Weir Canyon Rd
Banner Ridge Dr
N-1
N-5
N-6
N-4
N-2
W-4
W-6
A-5
N-8
N-9
W-7
A-3
W-8
E-1
E-2
W-1
W-3
W-5
N-3
N-7
A-1
A-2
N-10
View Index Exhibit 4.2-1
March 11, 2005
Source:
Mountain Park Specific Plan Amendment EIR No. 331
Legend
!( Perspective
Location
Pad Area Daylight Area
Access Roads Mountain Park
Project Site
Not To Scale
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.2 Aesthetics-031405.doc 4.2-3 Landform and Aesthetics x View N-5 – View from a public roadway (intersection of La Palma Avenue and Via Lomas de Yorba East) looking south toward the project site. View N-5 (refer to Exhibit 4.2-11 in Section 4.2.3) depicts the view from the intersection of La Palma Avenue and Via Lomas de Yorba East that is representative of views from this roadway and existing uses in this area of the City of Yorba Linda north of the project site. This view is also similar to what would be seen by individuals using the Santa Ana River Trail that runs parallel to the roadway. Foreground views are of landscaping located within Featherly Regional Park and the Santa Ana River. Featherly Regional Park is a 795- acre camping (overnight use) facility located south of the public trail but north of the project site and SR-91. Public access to the park is limited to the Canyon RV Park grounds and the Santa Ana River Trail, which runs adjacent to the Santa Ana River.
The project site is not visible from areas accessible to the public within Featherly Regional Park due to its location adjacent to the SR-91/SR-241 interchange, elevation, retaining walls, and the surrounding existing vegetation. Views of SR-91 are obstructed by existing vegetation; however, there are partial views of the SR-91/SR-241 on- and offramps in the middleground views from this vantage point. The existing quarry operations are also visible. Background views consist of the hills and prominent ridgelines within and south of the project site.
x View N-6 – View from a public roadway (intersection of La Palma Avenue and Gypsum Canyon Road) looking south toward the project site. View N-6 on Exhibit 4.2-3 depicts the view from the intersection of La Palma Avenue and Gypsum Canyon Road. Foreground views are of landscaping located within the Santa Ana River.
Middleground views are of the hills adjacent to SR-91 and the existing quarry.
Background views consist of the hills and prominent ridgelines within and south of the project site. The mined areas of the quarry and background ridgelines are the primary visual feature from this vantage point.
x View N-7 – View from the Class I bikeway on the north side of the Santa Ana River (Santa Ana River Trail) looking south toward the project site. View N-7 (refer to Exhibit 4.2-13 in Section 4.2.3) depicts the view from the north side of the Santa Ana River looking south toward the project site. The foreground and middleground views are of existing vegetation located in the Santa Ana River. A view of the hills and ridges, including prominent ridgelines such as Windy Ridge, are visible in the background.
Existing residential uses in the eastern portion of the City of Anaheim are also visible in the background. Featherly Regional Park is located south of the Santa Ana River Trail bikeway. The project site is not visible from areas accessible to the public within Featherly Regional Park due to its location adjacent to the SR-91/SR-241 interchange, elevation, retaining walls, and the surrounding existing vegetation. x View N-8 – View from the north (westbound) side of SR-91 looking southwest toward the project site. View N-8 on Exhibit 4.2-3 depicts the view from the north side of SR-91 looking southwest toward the project site. The foreground views are of SR-91.
Middleground views are of slopes adjacent to SR-91. Background views are of the distant ridgelines and existing residential development southwest of the intersection of SR-91 and SR-241.
x View N-9 – View from the south (eastbound) side of SR-91 at Gypsum Canyon Road looking east toward the project site. View N-9 (refer to Exhibit 4.2-15 in Section
4.2.3) depicts the view from the south side of SR-91 at the Gypsum Canyon Road onramp looking east toward the project site. Foreground views are primarily of the on-ramp while middleground views are of a slope with natural vegetation (project site).
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.2 Aesthetics-031405.doc 4.2-4 Landform and Aesthetics Background views are of the surrounding ridgelines to the south of the project site and north of SR-91. Neither of the ridgelines is within the boundaries of the proposed project. x View N-10 – View from the south (eastbound) side of SR-91 looking south toward the project site. View N-10 (refer to Exhibit 4.2-16 in Section 4.2.3) depicts the view from the south side of SR-91 looking south toward the project site. The foreground and middleground views are of flat to gently sloping slopes with natural vegetation and some quarry areas. Due to the topography, background views are primarily obstructed; however, some prominent ridgelines can be seen.
Existing Views from the West
Existing views W-3 and W-6 are representative vantage points from the west. The remaining existing views from the west (W-1, W-2, W-4, W-5, W-7 and W-8) are described below but are shown on exhibits in Section 4.2.3 for comparison to proposed views (visual simulations). x View W-1 – View from Banner Ridge Drive looking east toward the project site.
View W-1 (refer to Exhibit 4.2-17 in Section 4.2.3) depicts the view toward the project site to the east from Banner Ridge Drive in The Summit of Anaheim Hills residential area.
This view is representative of views from residential uses in this area. The middleground views are of SR-241 and slopes adjacent to SR-241. The surrounding ridgelines from the City of Yorba Linda in the north to the surrounding ridgelines east of the project site dominate the background views. Windy Ridge may be seen from this vantage point but is not visible in the photograph. However, the background views also consist of the quarry, which is located on the project site, and existing residences in Yorba Linda interspersed at lower and higher elevations along the hillsides. x View W-2 – View from Banner Ridge Drive looking southeast toward the project site. View W-2 (refer to Exhibit 4.2-18 in Section 4.2.3) depicts the view toward the project site to the southeast from Banner Ridge Drive in The Summit of Anaheim Hills residential area. The foreground views from this area are of ornamental landscaping on the adjacent slopes. This landscaping partially obstructs views from this vantage point.
The middleground views are of SR-241 and slopes adjacent to SR-241. The surrounding ridgelines including Windy Ridge dominate the background views. x View W-3 – View from the terminus of Oak Canyon Drive east toward the project site. View W-3 on Exhibit 4.2-4 depicts the view toward the project site to the east from the current terminus of Oak Canyon Drive in The Summit of Anaheim Hills residential area. The views are similar to View W-1 and are also representative of views from residential uses in the area. The foreground views consist of the adjacent slope and associated vegetation. The middleground views are of SR-241 and additional slopes adjacent to SR-241. The surrounding ridgelines from the City of Yorba Linda in the north to the surrounding ridgelines east of the project site dominate the background views.
Windy Ridge may be seen from this vantage point but is not visible in the photograph.
The background views also consist of the quarry, which is located on the project site, and existing residences in Yorba Linda interspersed at lower and higher elevations along the hillsides.
x View W-4 – View from the terminus of Wiley Way looking east toward the project site. View W-4 (refer to Exhibit 4.2-20 in Section 4.2.3) depicts the view toward the project site to the east from the terminus of Wiley Way, a public roadway in The Summit of Anaheim Hills residential area. The foreground views are of existing vegetation on the slopes adjacent to SR-241. The middleground views are of the mined areas of the quarry
Mountain Park Specific Plan Amendment
Draft EIR No. 331
R:\Projects\TIC\J020\Draft EIR\4.2 Aesthetics-031405.doc 4.2-5 Landform and Aesthetics and the natural hillside areas within the project site. The background views consist of the prominent ridgelines to the east of the project site. Although Windy Ridge is visible from this vantage point, it is not shown in the photograph.
x View W-5 – View from the terminus of Fallbrook Way west of the project site looking southeast toward the project site. View W-5 (refer to Exhibit 4.2-21 in Section