Instrument Flight Procedures Low-Level Helicopter System (ILHS) to support Helicopter Air Ambulance (HAA) Operations (ILHS-HAA Project)

Draft Environmental Assessment

All of the following documents are available for download in PDF format. The Adobe Acrobat Reader may be downloaded here. To open each document, please click on the links below. We recommend you save the document before you review the documents.

The public comment and review period for the ILHS-HAA Project Draft EA begins 12:00am May 8, 2023 and will conclude 11:59pm June 9, 2023.

Draft EA Main Document

• Table of Contents and Chapters 1-5 complete

Draft EA Appendices

• Appendix A: Agency and Public Coordination and List of Receiving Parties
• Appendix B: List of Preparers
• Appendix C: References
• Appendix D: List of Acronyms and Glossary
• Appendix E: Basics of Noise
• Appendix F: ILHS-HAA Project Noise Technical Report 
• Appendix F.1: ILHS-HAA Project Noise Technical Report List of 4(f) Resources 

Supplemental Materials

Google Earth

The FAA has released Draft EA information on the ILHS-HAA Project on May 7, 2023. The list of Libraries receiving digital files of the Draft EA is presented below. The Draft EA supplemental Google Earth format files can be accessed below. The files have been separated by 2023 (the implementation year) and 2028 (5 years following implementation). They are further detailed by the category of points evaluated and are further detailed in the Draft EA. These files require a GIS program. The recommended publicly available desktop program is the Google Earth Pro edition, available here. Due to size, the files may take more than a few minutes to load into Google Earth, depending on your computer capabilities.

• Libraries Receiving Digital Copies of the Draft EA
• General Study Area Boundary 
• 2023 Noise Results – Northeast Grid Points
• 2023 Noise Results – Northwest Grid Points 
• 2023 Noise Results – Southeast Grid Points 
• 2023 Noise Results – Southwest Grid Points
• 2023 Noise Results – Northeast Census Block Centroids
• 2023 Noise Results – Northwest Census Block Centroids
• 2023 Noise Results – Southeast Census Block Centroids
• 2023 Noise Results – Southwest Census Block Centroids
• 2023 Noise Results – Northeast Historic, Wildlife, Recreational & Parks Points
• 2023 Noise Results – Northwest Historic, Wildlife, Recreational & Parks Points
• 2023 Noise Results – Southeast Historic, Wildlife, Recreational & Parks Points 
• 2023 Noise Results – Southwest Historic, Wildlife, Recreational & Parks Points
• 2028 Noise Results – Northeast Grid Points
• 2028 Noise Results – Northwest Grid Points 
• 2028 Noise Results – Southeast Grid Points 
• 2028 Noise Results – Southwest Grid Points 
• 2028 Noise Results – Northeast Census Block Centroids 
• 2028 Noise Results – Northwest Census Block Centroids 
• 2028 Noise Results – Southeast Census Block Centroids 
• 2028 Noise Results – Southwest Census Block Centroids
• 2028 Noise Results – Northeast Historic, Wildlife, Recreational & Parks Points
• 2028 Noise Results – Northwest Historic, Wildlife, Recreational & Parks Points
• 2028 Noise Results – Southeast Historic, Wildlife, Recreational & Parks Points 
• 2028 Noise Results – Southwest Historic, Wildlife, Recreational & Parks Points