Final Environmental Assessment (Final EA)

The Final Environmental Assessment is a related Federal document prepared under the National Environmental Policy Act (NEPA), by the Federal Lead Agency, U.S. Army Corps of Engineers.

The U.S. Army Corps of Engineers has completed the Final Environmental Assessment and issued a Finding of No Significant Impact (FONSI). This notice was published in the San Gabriel Valley Tribune on April 14, 2010. Click here to download the FONSI (1 page PDF file)

The Final Environmental Assessment is available below as a single large file or as separate, smaller files:

• Final Environmental Assessment (210 page, 18.5 MB, PDF file)
• Cover Page (2 page, 12 kb, PDF file)
• Table of Contents (6 page, 32 kb, PDF file)
• Preface 6 page, 24 kb, PDF file)
• Executive Summary 6 page, 32 kb, PDF file)
• 1.0 Introduction (8 page, 96 kb, PDF file)
• 2.0 Alternatives (38 page, 20.3 mb, PDF file)
• 3.0 Overview (2 page, 16 kb, PDF file)
  • 3.1 Biological Resources (28 page, 1.2 mb, PDF file)
  • 3.2 Cultural Resources (18 page, 804 kb, PDF file)
  • 3.3.Flood Control and Hydrology (6 page, 32 kb, PDF file)
  • 3.4 Recreation (4 page, 20 kb, PDF file)
  • 3.5 Air Quality (16 page, 132 kb, PDF)
  • 3.6 Geology and Soils (4 page, 28 kb, PDF file)
  • 3.7 Erosion and Sedimentation (4 page, 28 kb, PDF file)
  • 3.8 Mineral Resources (2 page, 16 kb, PDF file)
  • 3.9 Land Use (4 page, 28 kb, PDF file)
  • 3.10 Economics (4 page, 24 kb, PDF file)
  • 3.11 Safety and Health (4 page, 24 kb, PDF file)
  • 3.12 Noise (6 page, 312 kb, PDF file)
  • 3.13.Traffic (12 page, 96 kb, PDF file)
  • 3.14 Aesthetics (8 page, 40 kb, PDF file)
  • 3.15 Scientific and Educational Value (4 page, 28 kb, PDF file)
  • 3.16 Environmental Justice (6 page, 32 kb, PDF file)
• 4.0 Federal Laws (4 page, 25 kb, PDF file)
• 5.0 References (4 page, 24 kb, PDF file)
• 6.0 Preparers (2 page, 12 kb, PDF file)
• 7.0 Acronyms and Abbreviations (2 page, 16 kb, PDF file)