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Home My WebLink About20161603.tiffAir Traffic Organization 2200 South 216th Street Western Service Center Des Moines, WA 98198 U.S. Department of Transportation Federal Aviation Administration November 13, 2019 The Hon. Barbara Kirkmeyer District 3 Weld County P.O. Box 758 Greeley, CO 80632 RECEIVED NOV 18 2019 COMMISSIONERS PROJECT UPDATE: Release of FAA Denver Metroplex (DEN Metroplex) Final Environmental Assessment and Errata Dear Ms. Kirkmeyer: The Federal Aviation Administration (FAA) has prepared a Final Environmental Assessment (Final EA) to respond to comments received during the public comment period and to disclose additions or changes to the April 22, 2019 Draft Environmental Assessment (Draft EA) for the Denver Metroplex (DEN Metroplex) Project. The Errata, in conjunction with the Draft EA document and associated appendices, together constitute the FAA's fmal NEPA document for the DEN Metroplex Project and are collectively presented as the Final EA for the DEN Metroplex Project. The Draft EA for the DEN Metroplex Project described a Preferred Alternative consisting of instrument flight rules (IFR) air traffic procedures that met the Purpose and Need for the DEN Metroplex Project as described in the April 22, 2019 Draft EA document. Revisions to the Draft EA Preferred Alternative as well as other changes to the text, exhibits, tables, and appendices are described in the Errata document. As a result of the changes to the Draft EA text, exhibits, tables, and appendices by the FAA, a 32 -day Public Comment period from November 18, 2019 and concluding December 20, 2019 is opened upon the public release of the documents specifically to receive comments on the changes to the text, exhibits, tables, and appendices, as well as comments related to Section 106 of the National Historic Preservation Act. The DEN Metroplex project would improve the efficiency of the national airspace system in the Denver region by optimizing aircraft arrival and departure procedures at one primary airport (DEN) and four outlying satellite airports. Availability: Electronic copies of the Final EA and supporting materials are anticipated to be available at the following locations on November 18, 2019: 1) Online at: http://www.metroplexenvironmental.com 2) Electronic versions of the Final EA have been sent to 78 libraries in the General Study Area. A complete list of libraries with electronic copies of the Final EA will be available online at http://www.metroplexenvironmental.com and is attached for reference. If you wish to provide comments, please provide them by mail or via the FAA Community Engagement website comment form through December 20, 2019 via the following: CoMMvn1Go.+:onS Cc:HL(LE-/BF/KS),CA(46/ac) aOl6-(603 lI/2.s/19 1009 a Denver Metroplex Final EA Federal Aviation Administration Western Service Center - Operations Support Group 2200 S. 216th St. Des Moines, WA 98198-6547 Web comment form available at: https://www.faa.gov/air traffic/community_involvement/den/ Sincerely, Shawn Kozica Manager, Operations Support Group Western Service Center Attachment: List of Libraries receiving electronic versions of the Final EA documents List of Libraries receiving electronic versions of the Final EA documents County Library Location Adams Anythink Bennett 495 7th St. Bennett CO 80102 303-405-3231 Anythink Brighton 327 E. Bridge St. Brighton, CO 80601 303-405-3230 Anythink Commerce City 7185 Monaco St. Commerce City, CO 80022 303-287-0063 Anythink Wright Farms 5877 E. 120th Ave. Thornton CO 80602 303-405-3200 Anythink Peri Mack 7611 Hilltop Circle, Denver CO 80221 303-428-3576 Arapahoe Aurora Central Library 14949 E. Alameda Pkwy. Aurora CO 80012 303-739-6600 Englewood Public Library 1000 Englewood Pkwy. Englewood CO 80110 303-762-2560 Bemis Public Library 6014 S. Datura St. Littleton CO 80120 303-795-3961 Arapahoe Library District Attention: Jose Ortiz 12855 E Adam Aircraft Circle Englewood CO 80112 Boulder Boulder Public Library — Main 1001 Arapahoe Ave. Boulder CO 80302 303-441-3100 Longmont Public Library 409 4th Ave. Longmont CO 80501 303-651-8470 Nederland Community Library 200 Hwy. 72 N. Nederland CO 80466 303-258-1101 Lyons Regional Library 405 Main St. Lyons CO 80540 303-823-5165 Broomfield Broomfield Library 3 Community Park Rd. Broomfield CO 80020 720-887-2300 Chafee Buena Vista Public Library 131 Linderman Ave Buena Vista CO 81211 719-395-8700 Salida Regional Library 405 E St. Salida CO 81201 719-539-4826 Clear Creek Idaho Springs Public Library 219 14th Ave. Idaho Springs CO 80452 303-567-2020 John Tomay Memorial Library 605 6th St. Georgetown CO 80444 303-569-2620 Denver Denver Central Library 10 W. Fourteenth Ave. Pkwy. Denver CO 80204 720-865-1111 County Library Location Denver, (cont...) Sam Gary Branch Library 2961 Roslyn St. Denver CO 80238 720-865-0325 Eugene Field Branch Library 810 S University Blvd. Denver CO 80209 720-865-0240 Douglas Castle Pines Public Library 360 Village Square Lane Castle Pines CO 80108 303-791-7323 Phillip S. Miller Public Library 100 S. Wilcox St. Castle Rock CO 80104 303-791-7323 Lone Tree Public Library 10055 Library Way Lone Tree CO 80124 303-791-7323 Parker Public Library 20105 Mainstreet Parker CO 80138 303-791-7323 Roxborough Public Library 8357 N Rampart Range Rd. 200 Roxborough CO 80215 303-791-7323 Eagle Avon Public Library 200 Benchmark Road Avon CO 81620 970-949-6797 Eagle Public Library 600 Broadway St. Eagle CO 81631 970-328-8800 Gypsum Public Library 47 Lundgren Blvd. Gypsum CO 81637 970-524-5080 El Paso High Prairie Library 7035 Old Meridian Rd. Peyton CO 80831 719-531-6333 #7003 Fountain Public Library 230 S. Main St. Fountain CO 80817 719-382-5347 Monument Public Library 1706 Lake Woodmoor Dr. Monument CO 80132 719-488-2370 Ruth Holley Library 685 N. Murray Blvd. Colorado Springs CO 80915 719-597-5377 Penrose Library 20 N. Cascade Ave. Colorado Springs CO 80903 719-531-6333 Manitou Springs Library 701 Manitou Ave. Manitou Springs CO 80829 719-685-5206 Elbert Simla Library 504 Washington Ave. Simla CO 80835 719-541-2573 Kiowa Library 331 Comanche St. Kiowa CO 80117 909-621-2754 Fremont Canon City Public Library 516 Macon Ave. Canon City CO 81212 719-269-9020 John C. Fremont Library 130 Church Ave. Florence CO 81226 719-784-4649 County Library Location Fremont (cont...) Penrose Community Library 35 7th Ave. Penrose CO 81240 719-372-6017 Gilpin Gilpin County Public Library 15131 Hwy 119 Black Hawk CO 80422 303-582-5777 Grand Kremmling Library 300 S. 8th St. Kremmling CO 80459 970-724-9228 Juniper Library 316 Garfield St. Grand Lake CO 80447 970-627-8353 Fraser Valley Library 421 Norgren Road Fraser CO 80442 970-726-5689 Granby Library 55 Zero St. Grandby CO 80446 970-887-2149 Jackson Jackson County Public Library 412 4th St. Walden CO 80480 970-723-4602 Jefferson Conifer Library 10441 Highway 73 Conifer CO 80433 303-235-5275 Evergreen Library 5000 County Rd. 73 Evergreen CO 80439 303-235-5275 Columbine Library 7706 W. Bowles Ave. Littleton CO 80123 303-235-5275 Standley Lake Library 8485 Kipling St. Arvada CO 80005 303-235-5275 Edgewater Library 1800 Harlan St. Edgewater CO 80214 303-235-5275 Kiowa Kiowa County Public Library 1305 Goff St. Eads CO 82036 719-438-5581 Kit Carson Stratton Public Library 331 New York Ave. Stratton CO 80836 719-348-5922 Lake Lake County Public Library 1115 Harrison Ave. Leadville CO 80461 719-486-0569 Larimer Council Tree Library 2733 Council Tree Ave. Ft. Collins CO 80525 970-221-6740 Loveland Public Library 300 N. Adams Ave. Loveland CO 80537 970-962-2665 Estes Valley Library 335 E. Elkhorn Ave. Estes Valley CO 80517 970-586-8116 Lincoln Limon Memorial Library 205 E Avenue Limon CO 80828 719-775-2163 Logan Sterling Public Library 420 N. 5th St. Sterling CO 80751 970-522-2023 County Library Location Morgan Fort Morgan Public Library 414 Main St. Ft. Morgan CO 80701 970-542-4000 East Morgan County Library 500 Clayton St. Brush CO 80723 970-842-4596 Park Guffey Public Library 1625B Park County Rd. 102 Guffey CO 80820 719-689-9280 Fairplay Public Library 400 Front St. Fairplay CO 80440 719-836-4297 Bailey Public Library 350 Bulldogger Rd. Bailey CO 80421 303-838-5539 Lake George Public Library 37900 Hwy 24 Lake George CO 80827 719-748-3812 Pitkin Pitkin County Library 120 N Mill St. Aspen CO 81611 970-429-1900 Pueblo Rawlings Main Library 100 E Abriendo Ave. Pueblo CO 81004 719-562-5600 Greenhorn Valley Branch Library 4801 Cibola Dr. Colorado City CO 81019 719-562-5600 Pueblo West Branch Library 298 S. Joe Martinez Blvd. Pueblo West CO 81107 719-562-5600 Summit Summit County Library 0037 Peak One Dr. Frisco CO 80443 970-668-5555 Teller Woodland Park Library 218 E. Midland Ave. Woodland Park CO 80866 719-687-9281 Florissant Public Library 334 Circle Dr. Florissant CO 80816 719-748-3939 Washington Akron Public Library 302 Main Ave. Akron CO 80720 970-345-6818 Weld Platteville Public Library 504 Marion Ave. Platteville CO 80651 970-785-2231 Northern Plains Public Library 216 2nd St. Ault CO 80610 970-834-1259 Farr Regional Library 1939 61st Ave. Greeley CO 80634 888-861-7323 Yuma Yuma Public Library 910 S. Main St. Yuma CO 80749 970-848-2368 Wray Public Library 301 W. 7th St. Wray CO 80758 970-332-4744 s U.S. Department of Transportation Federal Aviation Administration April 17, 2019 The Hon. Barbara Kirkmeyer Weld County District 3 P.O. Box 758 Greeley, CO 80632 Air Traffic Organization 2200 S. 216th Street Western Service Center Des Moines, WA 98198-6547 RECEIVED APR 222019 WELD COUNTY COMMISSIONERS Reference: Denver Metroplex (DEN Metroplex) Draft Environmental Assessment (EA) — Notice of Availability Dear Ms. Kirkmeyer, This letter is to inform you that the Federal Aviation Administration (FAA) has prepared a Draft Environmental Assessment CEA) to consider the potential environmental impacts for implementation of the Denver Metroplex (DEN Metroplex) project. A "metroplex" is a major metropolitan area with multiple airports, where heavy air traffic and environmental constraints combine to hinder efficient aircraft movement. The DEN Metroplex project would improve the efficiency of the national airspace system in the Denver area airspace by optimizing aircraft arrival and departure procedures at a number of airports. The Study Airports are: • Centennial Airport (APA) • Rocky Mountain Metropolitan Airport (BJC) • Denver International Airport (DEN) • Northern Colorado Regional Airport (FNL) • Greeley — Weld County Airport (GXY) The project involves changes in aircraft flight paths and altitudes in certain areas. Specifically, the FAA proposes to publish and implement optimized standard arrival and departure instrument procedures, serving instrument flight rules (IFR) air traffic flows only into and out of airports in the DEN Metroplex airspace area. The proposed action would not require any ground disturbance or increase the number of aircraft operations within the DEN Metroplex airspace area. The analysis of potential environmental impacts in the EA was conducted in accordance with FAA Order 1050.1F, Environmental Impacts: Policies and Procedures. Cpm r w co -A- i,orS 5/i /i q cc. NL(t 1-Ier/vs),c K6616ca 4/2(v/ I ci 2.01(0-1 (00 3 2 On April 22, 2019, the Draft EA will be released and made publicly available for review and comment. Electronic copies of the Draft EA and supporting materials are available at the following locations: 1) Online at: http://metroplexenvironmental.com/denver_metroplex/denver_docs.html 2) Electronic versions of the Draft EA have been sent to 77 libraries in the General Study Area. A complete list of libraries with electronic copies of the Draft EA is available online at the above website link and is presented below. County Library Location Adams Anythink Bennett 495 7th St. Bennett CO 80102 303-405-3231 Anythink Brighton 327 E. Bridge St. Brighton, CO 80601 303-405-3230 Anythink Commerce City 7185 Monaco St. Commerce City, CO 80022 303-287-0063 Anythink Wright Farms 5877 E. 120th Ave. Thornton CO 80602 303-405-3200 Anythink Perl Mack 7611 Hilltop Circle, Denver CO 80221 303-428-3576 Arapahoe Aurora Central Library 14949 E. Alameda Pkwy. Aurora CO 80012 303-739-6600 Englewood Public Library 1000 Englewood Pkwy. Englewood CO 80110 303-762-2560 Bemis Public Library 6014 S. Datura St. Littleton CO 80120 303-795-3961 Boulder Boulder Public Library — Main 1001 Arapahoe Ave. Boulder CO 80302 303-441-3100 Longmont Public Library 409 4th Ave. Longmont CO 80501 303-651-8470 Nederland Community Library 200 Hwy. 72 N. Nederland CO 80466 303-258-1101 Lyons Regional Library 405 Main St. Lyons CO 80540 303-823-5165 3 County Library Location Broomfield Broomfield Library 3 Community Park Rd. Broomfield CO 80020 720-887-2300 Chafee Buena Vista Public Library 131 Linderman Ave Buena Vista CO 81211 719-395-8700 Salida Regional Library 405 E St. Salida CO 81201 719-539-4826 Clear Creek Idaho Springs Public Library 219 14th Ave. Idaho Springs CO 80452 303-567-2020 John Tomay Memorial Library 605 6th St. Georgetown CO 80444 303-569-2620 Denver Denver Central Library 10 W. Fourteenth Ave. Pkwy. Denver CO 80204 720-865-1111 Sam Gary Branch Library 2961 Roslyn St. Denver CO 80238 720-865-0325 Eugene Field Branch Library 810 S University Blvd. Denver CO 80209 720-865-0240 Douglas Castle Pines Public Library 360 Village Square Lane Castle Pines CO 80108 303-791-7323 Phillip S. Miller Public Library 100 S. Wilcox St. Castle Rock CO 80104 303-791-7323 Lone Tree Public Library 10055 Library Way Lone Tree CO 80124 303-791-7323 Parker Public Library 20105 Mainstreet Parker CO 80138 303-791-7323 Roxborough Public Library 8357 N Rampart Range Rd. 200 Roxborough CO 80215 303-791-7323 Eagle Avon Public Library 200 Benchmark Road Avon CO 81620 970-949-6797 4 County Library Location Eagle (cont...) Eagle Public Library 600 Broadway St. Eagle CO 81631 970-328-8800 Gypsum Public Library 47 Lundgren Blvd. Gypsum CO 81637 970-524-5080 El Paso High Prairie Library 7035 Old Meridian Rd. Peyton CO 80831 719-531-6333 #7003 Fountain Public Library 230 S. Main St. Fountain CO 80817 719-382-5347 Monument Public Library 1706 Lake Woodmoor Dr. Monument CO 80132 719-488-2370 Ruth Holley Library 685 N. Murray Blvd. Colorado Springs CO 80915 719-597-5377 Penrose Library 20 N. Cascade Ave. Colorado Springs CO 80903 719-531-6333 Manitou Springs Library 701 Manitou Ave. Manitou Springs CO 80829 719-685-5206 Elbert Simla Library 504 Washington Ave. Simla CO 80835 719-541-2573 Kiowa Library 331 Comanche St. Kiowa CO 80117 909-621-2754 Fremont Canon City Public Library 516 Macon Ave. Canon City CO 81212 719-269-9020 John C. Fremont Library 130 Church Ave. Florence CO 81226 719-784-4649 Penrose Community Library 35 7th Ave. Penrose CO 81240 719-372-6017 Gilpin Gilpin County Public Library 15131 Hwy 119 Black Hawk CO 80422 303-582-5777 5 County Library Location Grand Kremmling Library 300 S. 8th St. Kremmling CO 80459 970-724-9228 Juniper Library 316 Garfield St. Grand Lake CO 80447 970-627-8353 Fraser Valley Library 421 Norgren Road Fraser CO 80442 970-726-5689 Granby Library 55 Zero St. Granby CO 80446 970-887-2149 Jackson Jackson County Public Library 412 4th St. Walden CO 80480 970-723-4602 Jefferson Conifer Library 10441 Highway 73 Conifer CO 80433 303-235-5275 Evergreen Library 5000 County Rd. 73 Evergreen CO 80439 303-235-5275 Columbine Library 7706 W. Bowles Ave. Littleton CO 80123 303-235-5275 Standley Lake Library 8485 Kipling St. Arvada CO 80005 303-235-5275 Edgewater Library 1800 Harlan St. Edgewater CO 80214 303-235-5275 Kiowa Kiowa County Public Library 1305 Goff St. Eads CO 82036 719-438-5581 Kit Carson Stratton Public Library 331 New York Ave. Stratton CO 80836 719-348-5922 Lake Lake County Public Library 1115 Harrison Ave. Leadville CO 80461 719-486-0569 Larimer Council Tree Library 2733 Council Tree Ave. Ft. Collins CO 80525 970-221-6740 Loveland Public Library 300 N. Adams Ave. Loveland CO 80537 970-962-2665 6 County Library Location Latimer (cont...) Estes Valley Library 335 E. Elkhorn Ave. Estes Valley CO 80517 970-586-8116 Lincoln Limon Memorial Library 205 E Avenue Limon CO 80828 719-775-2163 Logan Sterling Public Library 420 N. 5th St. Sterling CO 80751 970-522-2023 Morgan Fort Morgan Public Library 414 Main St. Ft. Morgan CO 80701 970-542-4000 East Morgan County Library 500 Clayton St. Brush CO 80723 970-842-4596 Park Guffey Public Library 1625B Park County Rd. 102 Guffey CO 80820 719-689-9280 Fairplay Public Library 400 Front St. Fairplay CO 80440 719-836-4297 Bailey Public Library 350 Bulldogger Rd. Bailey CO 80421 303-838-5539 Lake George Public Library 37900 Hwy 24 Lake George CO 80827 719-748-3812 Pitkin Pitkin County Library 120 N Mill St. Aspen CO 81611 970-429-1900 Pueblo Rawlings Main Library 100 E Abriendo Ave. Pueblo CO 81004 719-562-5600 Greenhorn Valley Branch Library 4801 Cibola Dr. Colorado City CO 81019 719-562-5600 Pueblo West Branch Library 298 S. Joe Martinez Blvd. Pueblo West CO 81107 719-562-5600 Summit Summit County Library 0037 Peak One Dr. Frisco CO 80443 970-668-5555 , 7 County Library Location Teller Woodland Park Library 218 E. Midland Ave. Woodland Park CO 80866 719-687-9281 Florissant Public Library 334 Circle Dr. Florissant CO 80816 719-748-3939 Washington Akron Public Library 302 Main Ave. Akron CO 80720 970-345-6818 Weld Platteville Public Library 504 Marion Ave. Platteville CO 80651 970-785-2231 Northern Plains Public Library 216 2nd St. Ault CO 80610 970-834-1259 Farr Regional Library 1939 61st Ave. Greeley CO 80634 888-861-7323 Yuma Yuma Public Library 910 S. Main St. Yuma CO 80749 970-848-2368 Wray Public Library 301 W. 7th St. Wray CO 80758 970-332-4744 Public Workshops: The FAA invites the public to attend informational workshops for the Draft EA at the times and locations listed below. Representatives from the FAA will be available to answer questions about the Denver Metroplex Project. Written comments will be accepted at the public workshops. Denver Metroplex Project Environmental Assessment Workshops April 29, 2019 5:00 p.m. - 7:30p.m. Boulder Public Library Meadows Branch — Meeting Room 4800 Baseline Road, Boulder, CO 80303 April 30, 2019 5:00 p.m. - 7:30p.m. Erie Community Center — Briggs Room 450 Powers Street, Erie, CO 80516 May 1, 2019 5:00 p.m. - 7:30p.m. Rocky Mountain Metropolitan Airport — Mt. Evans Conference Room 11755 Airport Way, Broomfield, CO 80021 May 2, 2019 5:00 p.m. - 7:30p.m. Aurora Muiicipal Center Building — Lobby 15151 E. Alameda Parkway, Aurora, CO 80012 May 6, 2019 5:00 p.m. - 7:30p.m. Douglas County Library Parker Branch — Event Hall B 20105 East Main Street, Parker, CO 80138 May 7, 2019 5:00 p.m. - 7:30p.m. City of Centennial — Community Room 7272 S Eagle Street, Centennial, CO 80112" May 8, 2019 5:00 p.m. - 7:30p.m. Cherry Creek High School 9300 E Union Ave, Greenwood Village, CO 80111 8 Denver Metroplex Project Environmental Assessment Workshops May 9, 2019 5:00 p.m. - 7:30p.m. Arapahoe Community College — Half Moon Room 5900 S Sante Fe Drive, Littleton, CO 80120 May 13, 2019 5:00 p.m. - 7:30p.m. West View Middle School 1651 Airport Road, Longmont, CO 80503 May 14, 2019 5:00 p.m. - 7:30p.m. Noel Campus Middle School 5290 Kitteridge Street, Denver, CO May 15, 2019 5:00 p.m. - 7:30p.m. City of Brighton Recreation Center 555 N 11th Avenue, Brighton, CO 80601 May 16, 2019 5:00 p.m. - 7:30p.m. Blair Caldwell Library 2401 Welton Street, Denver, CO 80204 If you wish to provide comments, please provide them by mail, at a scheduled workshop, or via the FAA Community Engagement website comment form through June 6, 2019 via the following: Denver Metroplex Draft EA Federal Aviation Administration Western Service Center — Operations Support Group 2200 S. 216th St. Des Moines, WA 98198-6547 Comment cards will be available at all Public Workshops, and the FAA will be accepting written comment submissions at those venues. Web comment form available at: https://www.faa.gov/nextgen/nextgen_near_you/community_involvement/den/ FAA would like to thank you for your interest in this project. If you have any questions about the information provided, please feel free to contact me. Sincerely, Shawn Kozica Manager, Operations Support Group Western Service Center U.S. Department of Transportation Federal Aviation Administration May 6, 2016 Air Traffic Organization Western Service Center The Hon. Mike Freeman Chair Weld County Board of Commissioners P.O. Box 758 Greeley, CO 80632 1601 Lind Ave SW. Renton, WA 98057 RECEIVED MAY 1 1 2016 WELD COUNTY COMMISSIONERS Reference: Early Notification to Prepare an Environmental Assessment for the Denver Metroplex Project Dear Chairman Freeman: This notification is to inform you that the Federal Aviation Administration (FAA) intends to prepare an Environmental Assessment (EA) to consider the potential environmental impacts of the implementation of the Denver Metroplex (DEN Metroplex) Project. Attachment A is a copy of the Notice that will be published in the Denver Post that notifies the general public of the FAA's intent to prepare an EA. A "Metroplex" consists of multiple airports in and around a busy metropolitan area. The DEN Metroplex Project would improve the efficiency of the Denver Metroplex airspace by optimizing aircraft arrival and departure procedures serving a number of airports, including: • Denver International Airport (DEN) • Centennial Airport (APA) • Greeley -Weld County Airport (GXY) • Fort Collins -Loveland Municipal Airport (FNL) • Buckley Air Force Base (BKF) • Front Range Airport (FTG) • Rocky Mountain Metropolitan Airport (BJC) Additionally, the Longmont Vance Brand Municipal Airport (LMO) is currently and would continue to be served by flight procedures and is included in the EA but does not meet the FAA Order 1050.1F criteria to be designated an EA Study Airport. The project may involve changes in aircraft flight paths and/or altitudes, but would not require any ground disturbance or increase the number of aircraft operations within the Denver Metroplex airspace area. OCfl1M4t471iazi.;},,,) CC 11L 6/3a 2016-1603 Environmental Assessment Denver Metroplex May 6, 2016 Page 2 To evaluate potential environmental impacts of the DEN Metroplex Project, the FAA has established a General Study Area to evaluate human, physical and natural environmental conditions that could be affected by the aircraft path changes proposed to occur below 10,000 feet above ground level (AGL). The General Study Area captures one year of all radar flight paths up to the point at which 95 percent of departing aircraft are at or above 10,000 feet above ground level (AGL) and 95 percent of arriving aircraft are at or above 7,000 feet AGL. The lateral boundary of the General Study Area is based on the point where aircraft cross U.S. Census tract boundaries at the 10,000/7,000 feet AGL thresholds. This extent is concisely defined to focus on areas of air traffic flow. Attachment B presents the General Study Area for the DEN Metroplex Project. Additionally, a Supplemental Study Area will be developed up to 18,000 feet AGL if the proposed action or alternative(s) are over a national park or wildlife refuge where other noise is very low and a quiet setting is a generally recognized purpose and attribute. The Supplemental Study Area is based on the point where aircraft cross U.S. Census tract boundaries at the 18,000 feet AGL threshold vertically. Attachment C presents the Supplemental Study Area for the DEN Metroplex Project. The FAA intends to issue the Draft EA in the middle of 2017. We welcome your input as we prepare the EA and we are sending this early notification for the following reasons: 1. To advise you of the initiation of the EA study; 2. To provide you an opportunity to submit any background information that you may have regarding the study area established for this EA; and 3. To provide you an opportunity to advise the FAA of any issues, concerns, policies or regulations that you may have regarding the environmental analysis that will be undertaken in the EA. Many resource categories defined within FAA Order 1050.1F Environmental Impacts: Policies and Procedures would remain unaffected, either because the resource does not exist within the General Study Area or the types of activities associated with the DEN Metroplex Project would not affect them. The FAA is seeking public input via this Early Notification specifically for those environmental resource categories or components that the DEN Metroplex Project could potentially affect. These environmental resource categories or sub -categories include: • Socioeconomic Impacts, Environmental Justice and Children's Environmental Health and Safety Risks (Environmental Justice subcategory only) • Department of Transportation Act: Section 4(fl Resources • Noise • Air Quality • Climate • Compatible Land Use • Historic, Architectural, Archeological and Cultural Environmental Assessment Denver Metroplex May 6, 2016 Page 3 Resources (Historic and Cultural Resources sub -categories only) • Fish, Wildlife and Plants (Wildlife sub -category only) • Natural Resources and Energy Supply- Energy Supply sub -category only (aircraft fuel only) The FAA intends to hold public workshop(s) following publication of the Draft EA. The public workshop(s) will be conducted to provide an opportunity for the public to learn about the project and to submit comments. The FAA will provide public notice of the public workshop(s) and the availability of the Draft EA at a future date. FAA is currently working on additional details related to this project, and will be coordinating with the appropriate agencies in the near future. If you desire to provide comments and/or have any questions about the information provided, please provide them by letter or email, before June 7, 2016 at the following address: Attn: Marina Landis Environmental Specialist Western Service Area - Operations Support Group, AJV-W22 Federal Aviation Administration 1601 Lind Ave., SW Renton, WA 98057 Telephone: (425) 203-4561 Email: 9-ANM-Denver-Metroplex-EA@faa.gov Attachment A — Public Notice Attachment B — General Study Area Attachment C — Supplemental Study Area U.S. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration The Federal Aviation Administration (FAA) intends to prepare an Environmental Assessment (EA) to consider the potential environmental impacts of the implementation of the Denver Metroplex (DEN Metroplex) Project. SUMMARY: The FAA is issuing this notice to advise the public it intends to prepare an Environmental Assessment (EA) for the DEN Metroplex. A Metroplex consists of multiple airports in and around a busy metropolitan area. The DEN Metroplex Project would improve the efficiency of the Denver Metroplex airspace by optimizing aircraft arrival and departure procedures serving a number of airports, including Denver International Airport (DEN); Centennial Airport (APA); Greeley -Weld County Airport (GXY); Fort Collins -Loveland Municipal Airport (FNL); Buckley Air Force Base (BKF); Front Range Airport (FTG); and Rocky Mountain Metropolitan Airport (BJC). Additionally, the Longmont Vance Brand Municipal Airport (LMO) is currently and would continue to be served by flight procedures and is included in the EA but does not meet the FAA Order 1050.1F criteria to be designated an EA Study Airport. The EA will be conducted pursuant to the National Environmental Policy Act of 1969 and its implementing Regulations found at Title 40, Code of Federal Regulations, Sections 1500-1508. The purpose of the proposed DEN Metroplex is to improve the efficiency of the controlled airspace using more current navigation technology called Area Navigation (RNAV). The FAA has not made any decisions about the final EA content. SUPPLEMENTARY INFORMATION: Air traffic procedures operating in the airspace above and near DEN in addition to the EA Study Airports will be evaluated in the draft EA. The current procedures, which are intended to provide an orderly flow of traffic in and out of a busy metropolitan area, are largely dependent upon navigational aids on the ground and/or air traffic controller issued radar vectors. Ground - based navigational aids have limited capabilities, which dictate the location of a route in/out of the airspace. Radar vectors involve multiple communication transmissions between an air traffic controller and a pilot. RNAV technology is not limited to ground -based navigational aids and not subject to the same limitations. Therefore, RNAV-based procedures can direct pilots along more direct routes with predictable location and altitude information. A predictable procedure would involve less communication between an air traffic controller and a pilot; thereby reducing workload for both individuals. The application of RNAV technology for the DEN Metroplex would enhance efficient use of the airspace. Proposed Action The FAA intends to issue the Draft EA in the middle of 2017. We welcome your input as we prepare the EA for the following reasons: • To advise you of the initiation of the EA study; • To provide you an opportunity to submit any background information that you may have regarding the study area established for this EA; and • To provide you an opportunity to advise the FAA of any issues, concerns, policies or regulations that you may have regarding the environmental analysis that will be undertaken in the EA. (Continued on back) Many resource categories defined within FAA Order 1050.1F Environmental Impacts: Policies and Procedures would remain unaffected, either because the resource does not exist within the General Study Area or the types of activities associated with the DEN Metroplex Project would not affect them. The FAA is seeking public input via this Early Notification specifically for those environmental resource categories or components that the DEN Metroplex Project could potentially affect. These environmental resource categories or sub -categories include: • Socioeconomic Impacts, Environmental Justice and Children's Environmental Health and Safety Risks (Environmental Justice subcategory only) • Department of Transportation Act: Section 4(f) Resources • Noise • Air Quality • Climate • Compatible Land Use • Historic, Architectural, Archeological and Cultural Resources (Historic and Cultural Resources sub -categories only) • Fish, Wildlife and Plants (Wildlife sub -category only) • Natural Resources and Energy Supply- Energy Supply sub -category only (aircraft fuel only) Implementation of the proposed DEN Metroplex is neither anticipated to increase the number of aircraft operations at the EA Study Airports; nor involve physical construction of any facilities. General Study Area To evaluate potential environmental impacts of the DEN Metroplex Project, the FAA has established a General Study Area to evaluate human, physical and natural environmental conditions that could be affected by the aircraft path changes proposed to occur below 10,000 feet above ground level (AGL). The General Study Area captures one year of all radar flight paths up to the point at which 95 percent of departing aircraft are at or above 10,000 feet above ground level (AGL) and 95 percent of arriving aircraft are at or above 7,000 feet AGL. The lateral boundary of the General Study Area is based on the point where aircraft cross U.S. Census tract boundaries at the 10,000/7,000 feet AGL thresholds. This extent is concisely defined to focus on areas of air traffic flow. The General Study Area for the DEN Metroplex Project is located at http://www.metroplexenvironmental.com. Additionally, a Supplemental Study area will be developed up to 18,000 feet AGL if the proposed action or alternative(s) are over a national park or wildlife refuge where other noise is very low and a quiet setting is a generally recognized purpose and attribute. The Supplemental Study Area is based on the point where aircraft cross U.S. Census tract boundaries at the 18,000 feet AGL threshold vertically. The Supplemental Study Area for the DEN Metroplex Project is located at http://www.metroplexenvironmental.com. PUBLIC WORKSHOPS The FAA intends to hold public workshop(s) following publication of the Draft EA. The public workshop(s) will be conducted to provide an opportunity for the public to learn about the project and to submit comments. The FAA will provide public notice of the public workshop(s) and the availability of the Draft EA at a future date, FOR FURTHER INFORMATION CONTACT: Attn: Marina Landis, Environmental Specialist, Western Service Area - Operations Support Group, AJV-W22, Federal Aviation Administration, 1601 Lind Ave., SW, Renton, WA 98057. Telephone: (425) 203-4561 Email: 9-ANM-Denver-Metroplex-EA@faa,gov Eagle Pitkin Colorado Black Canyon of the Gunnison National Park Cur acanti National Recreation Area Jackson Grand Summit Larimer Boulder Gilpin Clear Creek Broomfield tr,1BjC Jefferson Denver Douglas Florissant Fossil Beds National,Monumeni Great Sand Dunes National Park Teller n DEN Adams ©FTG Arapahoe I - ere Pueblo Elbert Morgan f e_ es I s 1 1-' Washington imp oln 1 S 1 • 1 Yuma Kit Carson Nebraska 31r Kansas Sand Creek Massacre National Historic` ite Kiowa Bent's Old Fort L National Historic Site 1 50 Sources US Census Bureau Tiger mapping services US State Boundaries: US Counties US Incorporated Places: US Hydrology, US Primary and Secondary Roads, Native American Areas, generated May 1. 2015, from htlp://www.centwe.gov/geolmaps-data/dataitiger-line html Data goy National Park Boundaries generated May 1, 2015, from https /1catalog data gov/datasetinational-park-boundariesf0a4c USGS TNM USGSShadedRelcefOnly Basemap. generated January. 26. 2016 NFDC Study Airports, generated January 26, 2016 Prepared by ATAC Corporation, January 2016 DEN METROPLEX EA Environmental Assessment for the DEN Metroplex Project LEGEND n Study Airports lit IMPi r-� General Study Area Boundary Highways Water National Park Service Properties Counties in the General Study Area US Counties US State Boundaries Notes: APA - Centennial Airport BJC - Rocky Mountain Metropolitan Airport BKF - Buckley Air Force Base DEN - Denver International Airport FNL - Fort Collins -Loveland Municipal Airport FTG - Front Range Airport GXY - Greeley -Weld County Airport Protection GCS North American 1983 Scale 1.2.631.162 0 5 10 20 Miles I I f I I General Study Area DRAFT May 2016 Dinosaur National Monument Ct Colorado National Monument Colorado Wyoming Eagle Parkin Black Ganyon of the Gunnison National Park 84 Sources. US Census Bureau Tiger mapping services. US State Boundaries US Counties US Incorporated Places. US Hydrology US Primary and Secondary Roads: Native American Areas, generated May 1. 2015. from http iivnvw census govigeoirnaps-data/dataftiger-line bird Data.gov National Park Boundaries, generated May 1, 2015, from https //catalog data gov/datasetinational-park-boundariestC 4c USGS TNM USGSShadedReliefOnly Basemap, generated January. 26. 2016 NFDC Study Airports generated January 26, 2016 Prepared by: ATAC Corporation. January 2016 Jackson • ♦ Grand 34 Boulder Gilpin Clear Creek Sumrvw �BroIomfeld BJC -;'- Jefferson Denver APA Douglas re --Florissant Fossil Becks •`E`,* National,Monument Great Sand Dunes National Preserve Great Sand Dunes National Park J Scotts Bluff National Monument 4 Chimney Rock National Historical Park © DEN FTG BKF Arapahoe Morgan El Paso • Pueblo Adams Logan Washington Elbert — • Pa • Bent's Old Fort National Histonc•Site a Kit Carson Sand creek; Massacre National Histonc'Site Nebraska Kansas DEN METROPLEX EA Environmental Assessment for the DEN Metroplex Project LEGEND ON — c C3 Study Airports 18K Supplemental Boundary General Study Area Boundary Highways Water National Park Service Properties Counties in the General Study Area US Counties US State Boundaries Notes: APA - Centennial Airport BJC - Rocky Mountain Metropolitan Airport BKF - Buckley Air Force Base DEN - Denver International Airport FNL - Fort Collins -Loveland Municipal Airport FTG - Front Range Airport GXY - Greeley -Weld County Airport Projection GCS North American 1383 Scale 1 2.631.162 0 5 10 20 Miles 18K Supplemental Boundary DRAFT May 2016 Hello