| 1.0 |
Introduction
PDF, 30 kb |
| 2.0 |
Summary
PDF, 68 kb |
| 3.0 |
Project Description
PDF, 112 kb |
| 4.0 |
Environmental Checklist and Discussion
PDF, 59 kb |
| 4.1 |
Aesthetics
PDF, 59 kb |
| 4.2 |
Agriculture Resources
PDF, 38 kb |
| 4.3 |
Air Quality
PDF, 106 kb |
| 4.4 |
Biological Resources
PDF, 106 kb |
| 4.5 |
Cultural Resources
PDF, 63 kb |
| 4.6 |
Geology, Soils, Seismicity, and Mineral Resources
PDF, 96 kb |
| 4.7 |
Hazards and Hazardous Materials
PDF, 62 kb |
| 4.8 |
Hydrology and Water Quality
PDF, 95 kb |
| 4.9 |
Land Use and Planning
PDF, 85 kb |
| 4.10 |
Noise
PDF, 80 kb |
| 4.11 |
Population and Housing
PDF, 52 kb |
| 4.12 |
Public Services
PDF, 57 kb |
| 4.13 |
Recreation
PDF, 42 kb |
| 4.14 |
Transportation and Traffic
PDF, 68 kb |
| 4.15 |
Utilities and Services Systems
PDF, 70 kb |
| 5.0 |
Report Preparers
PDF, 25 kb |
| Appendices |
| A |
Technical Memorandum by GEO SOLUTIONS
PDF, 734 kb |
| B |
Draft Surface Water Hydrology & Water Quality Impacts Report by Walker Associates
PDF, 1.1 Mb |
| C |
Blasting Impacts Assessment for Proposed Idaho-Maryland Mine Report by Gordon Revey
PDF, 1.0 Mb |
| List of Figures |
| 2-1 |
Idaho-Maryland Site Environmental Constraints Map
PDF, 961 kb |
| 2-2 |
New Brunswick Site Environmental Constraints Map
PDF, 931 kb |
| 2-3 |
Round Hole Site Environmental Constraints Map
PDF, 978 kb |
| 3-1 |
Project Location
PDF, 142 kb |
| 3-2 |
Idaho-Maryland Mine Site Plan
PDF, 307 kb |
| 3-3 |
Idaho-Maryland Mine Grading Plan
PDF, 613 kb |
| 3-4 |
Idaho-Maryland Mine Site Surface Features
PDF, 1.7 Mb |
| 3-5 |
Round Hole Site Plan
PDF, 280 kb |
| 3-6 |
New Brunswick Site Plan
PDF, 452 kb |
| 3-7 |
Sodium Cyanide Closed Processing Circuit
PDF, 47 Mb |
| 3-8 |
Idaho-Maryland Site Reclamation Plan
PDF, 364 kb |
| 3-9 |
Round Hole Reclamation Plan
PDF, 171 kb |
| 3-10 |
New Brunswick Site Reclamation Plan
PDF, 294 kb |
| 4.1-1 |
Photo-Rendering of the Idaho-Maryland Site
PDF, 179 kb |
| 4.1-2 |
Photo-Rendering of the Round Hole Site
PDF, 190 kb |
| 4.1-3 |
Photo-Rendering of the New Brunswick Site
PDF, 171 kb |
| 4.4-1 |
City of Grass Valley 2020 General Plan: Wetlands
PDF, 40 kb |
| 4.9-1 |
Nevada County Existing General Plan Land Use Designations
PDF, 244 kb |
| 4.9-2 |
Nevada County Existing Zoning Designations
PDF, 1.2 Mb |
| 4.9-3 |
City of Grass Valley Annexation Plan Planned Annexations
PDF, 139 kb |
| 4.9-4 |
City of Grass Valley Existing General Plan Land Use Designations
PDF, 386 kb |
| 4.9-5 |
City of Grass Valley Existing Zoning Designations
PDF, 1.2 Mb |
| 4.9-6 |
Proposed Annexations
PDF, 458 kb |
| 4.9-7 |
Proposed City of Grass Valley General Plan Land Use Designations
PDF, 629 kb |
| 4.9-8 |
Proposed City of Grass Valley Zoning Designation for the Idaho-Maryland Site
PDF, 629 kb |
| List of Tables |
| 2-1 |
Summary of Potentially Significant Impacts for the Idaho-Maryland Mine Project Master Environmental Assessment |
| 2-2 |
Summary of Data Gaps for the Idaho-Maryland Mine Project Master Environmental Assessment |
| 3-1 |
Idaho-Maryland Site Facilities Proposed for Construction |
| 3-2 |
Heavy-Duty Construction Equipment |
| 3-3 |
New Brunswick Site Facilities Proposed for Construction |
| 3-4 |
Construction Details |
| 3-5 |
Operational Details |
| 3-6 |
Summary of Permit Requirements |
| 4.2-1 |
Farmland Conversion from 1990-2002 in Nevada County |
| 4.3-1 |
Air Quality Data Summary (2001-2005) for the Regional Project Area |
| 4.3-2 |
State and National Criteria Air Pollutant Standards, Effects, and Sources |
| 4.3-3 |
NSAQMD Emission Significance Thresholds |
| 4.4-1 |
Special-Status Species Potentially Occurring in the Project Area |
| 4.5-1 |
Examples of Cultural Resources Identified in Study Area |
| 4.6-1 |
Modified Mercalli Intensity Scale |
| 4.10-1 |
Noise Level Performance Standards for Fixed Noise Sources |
| 4.10-2 |
Maximum Allowable Noise Exposures for Transportation Noise Sources |
| 4.10-3 |
Typical Noise Levels from Construction Equipment |
| 4.10-4 |
Above Ground Off-Road Operational Equipment |
| 4.10-5 |
Project Facility Equipment and Proposed Noise Mitigation |
| 4.11-1 |
Labor Force Statistics |
| 4.11-2 |
Existing Housing Stock |
| 4.11-3 |
Proposed Project Population Projections |
| 4.11-4 |
Proposed Project Housing Demand Projections |
| 4.12-1 |
Project Area School Districts |
| 4.12-2 |
Project Area Childcare Facilities |
| 4.13-1 |
City of Grass Valley-Owned Park/Recreation Facilities |
| 4.14-1 |
Existing Daily Traffic Volumes |
| FULL VERSION - MASTER ENVIRONMENTAL ASSESSMENT REPORT PDF, 18.0 Mb |
