APPENDIX C GLARE REPORT

Transcription

1 APPENDIX C GLARE REPORT

2 IMPERIAL VALLEY SOLAR COMPANY (IVSC) 2 SOLAR PHOTOVOLTAIC PROJECT Prepared by: Tetra Tech EC, Inc Von Karman Avenue, Suite 500 Irvine, CA Prepared for: Imperial County Planning and Development Services 801 Main Street El Centro, CA September 2012

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4 IVSC2 Solar Project TABLE OF CONTENTS Page 1.0 Introduction Project Description Existing Environment Solar Modules and Glare Angle of Incidence Reflectivity Directionality of Reflection Airports and PV Solar Modules Conclusion/Summary of Key Findings References... 9 LIST OF FIGURES Figure 1 Figure 2 Figure 3 Figure 4 Concentrated Solar Technology and Photovoltaic Solar Technology Photographs Photograph Showing Fencing Around IVSC1 Project PV Modules and Reflectance Albedo of Common Surfaces and PV Modules APPENDICES Appendix A Department of Defense Preliminary Screening Tool Output Page i

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6 IVSC2 Solar Project 1.0 INTRODUCTION This Glare Assessment Technical Report (Report) has been prepared to evaluate potential impacts in terms of glint and glare resulting from the operation of a 30-megawatt alternating current (MW AC ) solar photovoltaic (PV) energy generation project (Project) on gross acres in Imperial County, California. The proposed project site is located approximately one-half mile northeast of Niland, California at 8201 Cuff Road, just south of the Imperial Irrigation District (IID) East Highline canal. Imperial Valley Solar Company (IVSC) 2, LLC is the applicant for the proposed project. Glint is defined as a momentary flash of bright light and is a type of glare produced by direct reflection of sunlight (Federal Aviation Administration [FAA] 2010). Glint is specular reflection and is produced as a direct reflection of the sun. Glare is defined as a continuous source of bright light, and can be produced by indirect reflection of sunlight or the reflection of the bright sky surrounding the sun (FAA 2010). Glare is significantly less intense than glint. Glint or glare can be an annoyance, distraction, or nuisance to viewers. Strong sources of glare can also cause a temporary loss of vision referred to as flash blindness, a temporary visual interference effect that persists after the source of illumination has ceased (FAA Order f). Glare can, therefore, present a hazard in certain situations, particularly to operators of motor vehicles or airplanes. Glint and glare can be a concern for solar power projects that utilize concentrated solar power to generate electricity. Concentrated solar power systems use large, reflective surfaces that resemble mirrors to focus the sun s energy on fixed point, producing intense heat which is converted to electricity (FAA 2010). The specular heliostat glass used in concentrated solar power systems can and does produce glint or glare that can be a nuisance or a hazard. However, glint or glare are not typically observed from PV modules such as those proposed for the IVSC2 facility. Example photographs of a PV facility and a concentrated solar facility are provided in Figure 1. PV modules are designed to absorb sunlight rather than reflect it. The reflective characteristics of typical PV modules are comparable to common sources of glare that already exist in the environment, and do not constitute sources of nuisance or hazard to receptors situated on the ground or in the air. PV installations are commonly located next to highways, and are becoming more common at airports, where low-profile PV modules can provide a renewable source of energy without creating an obstruction hazard. PV modules can safely be situated near runways because of the absorbing rather than reflecting nature of PV technology (FAA 2010).

7 IVSC2 Solar Project Figure 1. Photograph showing mirrored surfaces of a concentrating solar facility in Nevada (left) utilizing reflective technologies, and photograph of PV modules in California utilizing nonreflective technologies (right) (Photos by Tetra Tech). Following this introduction, the identifies the proposed project facilities that could potentially introduce new sources of glare to the environment (Section 2), and then describes the existing environment in and around the project site (Section 3). Section 4 discusses PV solar modules in detail, identifying potential glare impacts associated with the project angle of incidence, reflectivity, and directionality of reflection. Conclusions and a summary of the key findings are provided in Section 5. References are provided in Section PROJECT DESCRIPTION The proposed project will employ solar PV technology that would convert sunlight into direct current (DC) electricity. The proposed PV modules will be approximately 40 by 60 inches and will be fitted in two rows on metal racks which will tilt 30 degrees. 1 The metal racking system will include steel posts, cross beams and other support components. The height of the PV system will be approximately six to eight feet above grade, varying according to the underlying topography. The metal racks will be aligned in spaced rows to allow access for maintenance and fire protection. Row-to-row spacing of the racks will be approximately 20 to 25 feet. The PV system will be arranged in arrays (sets of rows), and each array will have a maximum electrical output of approximately 1.0 MW AC. 1 The initial information regarding project design indicates a 30 degree tilt. Typical tilt for this geographic area and latitude to maximize energy capture generally ranges between from degrees.

8 IVSC2 Solar Project It is expected that electricity generated by the PV modules will be collected by a 600-volt DC collection system. The electrical energy from the modules will be combined and routed to central energy DC-to-AC conversion stations called inverters. Energy from the inverters will flow to AC step-up transformers that will convert the voltage to 13.2 kv. The inverters and transformers will be located on a concrete pad within each 1.0 MW solar array. Underground 13.2-kilovolt (kv) collection lines will transmit electricity from the transformers to the point of interconnection with the power grid at the Niland Substation. A switchyard containing switchgear and an additional step-up transformer may be required depending on the final design of the interconnection with the IID Niland Substation. A 2,700 foot underground transmission line at 13.2 kv (or 92kV if the aforementioned switchyard is required) will be constructed from the southwest corner of the proposed project site to the existing Niland Substation and will be constructed in the existing IID right of way (ROW). Lighting will be restricted to areas required for safety, security and operation. Light will be directed on-site and will incorporate shielding as necessary to minimize illumination of the night sky and potential impacts to surrounding viewers. Security fencing will be installed around the perimeter of the project site, as shown in Figure 2. Figure 2. Photograph showing fencing around IVSC1 project.

9 IVSC2 Solar Project 3.0 EXISTING ENVIRONMENT The IVSC 2 project site is located in north central Imperial County, California, approximately twelve miles south of the Imperial/Riverside County boundary. The topography around the project site is predominantly flat. The project site lies below sea level and slopes gently upwards from southwest to northeast. The southwest corner of the project site is located at 82 feet below mean sea level (msl), and the northeast corner of the project site is located at 47 feet below msl. Elevation rises steadily to the northeast of the project site. Nearby towns include Niland (approximately one half mile southwest), Calipatria (approximately 8.2 miles south), and Brawley (approximately 18.2 miles south). The Salton Sea is located approximately 4.8 miles west of the project site. The Salton Sea is an approximately 525- square mile shallow, saline inland lake located below sea level. The Sonny Bono Salton Sea National Wildlife Refuge covers portions of the southern Salton Sea. The foothills of the Chocolate Mountains begin approximately eight miles northeast of the project site. Existing land uses in the immediate vicinity of the project site include the IVSC1 solar project to the south on land zoned for general agriculture within the Niland Urban Area (A2U); the IID Niland Gas Turbine Plant; and the existing IID Niland Substation. The proposed project site is surrounded to the east, north, and west by a large patchwork of agricultural uses and open space. The IID East Highline canal, rural residences, and Weist Road border the proposed project site to the north. Cuff Road and water production facilities border the proposed project site to the east. Additional rural residential uses are located approximately 0.3 miles to the southeast. The visual character of the project site and surrounding area is defined by a high degree of modification (gas turbine plant, Niland Substation, IVSC1 solar field, and agricultural lands). There are no unique or identifying features on-site or immediately adjacent to the project site, with the project site resembling the desert landscape surrounding the site. Views of the project site from surrounding areas are limited. The flat landscape limits visibility beyond approximately one mile. Potentially sensitive viewers are limited to rural residences around the project site. Views of the project from the residences will be at least partially obscured by fencing, vegetation and distance. Fencing for the IVSC2 project will resemble fencing installed for the IVSC1 project, pictured in Figure 2. There are no recreation areas in the vicinity with views of the site. Although the project will be visible from local roads, they are not highly-traveled roadways or identified scenic highways. The sensitivity level to changes in views resulting from project implementation can be considered low. There are two public airports located within 30 miles of the project site. The Cliff Hatfield Memorial Airport, owned by the City of Calipatria, is located approximately 8.3 miles south of the project site in Calipatria. The Brawley Municipal Airport, owned by the City of Brawley, is located approximately 17.8 miles south of the project site in Brawley. Both airports each have one asphalt runway situated in an east/west direction. The Imperial County Airport Land Use Compatibility Plan for Imperial County Airports (Imperial County 1996) was reviewed for the purpose of this assessment. The plan identifies airport

10 IVSC2 Solar Project compatibility zones in areas immediately surrounding airports in Imperial County. The airport compatibility zones are intended to regulate land use in the areas immediately surrounding airports in Imperial County. The project site, located approximately 8 and 18 miles from the Calipatria and Brawley airports, respectively, is not located within any airport compatibility zones. The Chocolate Mountain Naval Aerial Gunnary Range is located 2.4 miles northeast of the project site. Potential military airspace in the project area was identified using the Department of Defense (DOD) Preliminary Screening Tool. The coordinates of a four-sided polygon drawn to completely contain the project site were entered into the Preliminary Screening Tool. The output of all four coordinate entries were the same, and are provided in Appendix A. The tool indicated that the project area was inside three military areas of interest: M-ABEL SOUTH, VR1211, and VR288. M-ABEL is a military operating area (MOA), an area designated for military training, and may include activities such as (but not limited to) aerobatics, air combat tactics, and formation training. VR indicates a type of Military Training Route (MTR). Visual Flight Rules (VFR) MTRs are noted by VR in the title (United States Air Force and National Park Service 2002). The MTR program is a joint effort by the FAA and DOD to develop training routes for conducting lowaltitude/high-speed training exercises. Each MTR has a designated floor and ceiling altitude and lateral boundaries. The designated floor elevation may be as low as surface level. The presence of MOAs and VFR MTRs in the project area confirms that the airspace over the project is used by the military for training purposes. 4.0 SOLAR MODULES AND GLARE Glare may result if radiation (light) from the sun is reflected from the PV modules or associated infrastructure, and directed towards a viewer. Potential viewers may be situated at ground-level (residents, farm employees, and drivers on local roads), or in the air (airplane pilots). Viewers may also be mobile, such as in a car or airplane, or stationary such as a person sitting near a window with a view of the project. Glare produced by any surface is affected by a number of variables, including time of day, reflectivity of the surface, and the directionality of direct and indirect reflections in relation to the position of a potential viewer. 4.1 Angle of Incidence The intensity of solar radiation at the Earth s surface varies according to the time of day as the sun moves through the sky, changing the angle of incidence, defined as the angle at which the sun s rays hit the Earth s surface. Solar radiation is more intense when the sun s rays strike the earth at high angles of incidence in the middle of the day. When the sun strikes the Earth at a lower angle of incidence early or late in the day, solar radiation is spread over a larger surface area, reducing the intensity of the radiation at any given location (Pidwirny 2006). Solar radiation is also attenuated (reduced in intensity) by particles in the atmosphere such as air molecules, dust particles, and aerosols. The distance the solar radiation must pass though the atmosphere is directly related to the amount of attenuation. When the sun is directly overhead at noon, the distance sunlight travels through the atmosphere is minimized and less solar radiation is attenuated/scattered by atmospheric particles. At dawn and dusk, solar

11 IVSC2 Solar Project radiation has the greatest distance to travel through the atmosphere, and more radiation is attenuated by atmospheric conditions. 4.2 Reflectivity The reflectivity of surfaces also influences the amount of glare produced. PV solar modules are designed to absorb as much solar radiation as possible and minimize the amount that is reflected, in order to maximize the amount of energy converted to electricity (Figure 3). Monocrystalline silicon wafers, the main component of PV modules, are typically combined with anti-reflective coatings to maximize energy absorption. With these coatings, absorption can exceed 90 percent of incident radiation, and reflections can be reduced to under 10% of incident radiation. In addition, the glass on the PV modules is often stippled (textured with small indentations). The rough surface of the stippled glass allows greater trapping of light, resulting in less light escape by reflection and increased production of electrical power (Shields 2010). Figure 3. PV Modules are designed to maximize absorption of the sun s energy, and minimize the energy that is reflected back into the atmosphere.

12 IVSC2 Solar Project The absorptive qualities of PV solar modules, when maximized by anti-reflective coatings and stippled glass, can reduce the reflectivity of the modules to a level below the reflectivity of common surfaces found around most solar generation facility sites. Reflectivity is measured as albedo, defined as the reflecting power of a surface. Albedo is measured from 0 to 1, 0 representing no light reflected, and 1 representing 100% of incident sunlight reflected (Budikova 2010). Since glare strength is directly related to the amount of light reflected, an object with a low albedo would typically produce a lower level of glare compared with an object with a higher albedo. Typical PV modules with an anti-reflective coating have an albedo around 0.10 (approximately 10 percent of light reflected). The albedo of other common materials is shown in Figure 4, including that of asphalt, sand, snow, grass and agricultural crops. As seen in Figure 4, the albedo of PV modules is the same or lower than other common materials found at or near the facility (Budikova 2010, American Concrete Pavement Association 2002). Figure 4: Albedo of Common Surfaces in the Environment and typical PV modules (Source: Budikova 2010, American Concrete Pavement Association 2002). 4.3 Directionality of Reflection In physics, the Law of Reflection states that the direction of incoming light (the incident ray) and the direction of outgoing light (the reflection) produce the same angle with respect to a perpendicular line drawn from the reflecting surface. Glare may be experienced if a viewer is

13 IVSC2 Solar Project located in or near the direct path of the reflection. Indirect glare can be experienced near the direct path of reflection, and is less intense than direct glare. Indirect glare can be described as the reflection of the brightness around the sun, rather than the direct reflection from the sun itself. For a moving viewer such as a motorist, direct glare could be experienced momentarily as the viewer passes through the direct angle of reflection. Direct glare would be temporary for stationary viewers as well, because the glare would dissipate as the sun moves higher or lower on the horizon. Indirect glare may be experienced for a longer time than direct glare, but would be much less intense than direct glare. As described in Section 2.0, the PV modules will be facing south at a 30 degree fixed angle relative to the ground. Because of the angle at which the arrays are oriented, direct reflected light at mid-day when the sun is most intense will be reflected at a high angle relative to the ground. High angle reflections may be experienced during the day by viewers in elevated positions. For the project site, these viewers would be limited to private and military aircraft because the area around the project site is very flat and elevated viewpoints are limited to the Chocolate Mountains over eight miles east of the project site. Low-angle reflections may be created near dawn or dusk by ground-level viewers and low-flying aircraft such as landing/departing airplanes or crop dusters. Glare could be experienced by viewers situated on the opposite side of the project site from the sun. If the sun is rising in the east, viewers to the west of the project site looking east may experience glare. If the sun is setting in the west, viewers to the east of the project site looking west may experience glare. To experience this glare, the viewers would have to be looking into the sun. The brightness of the sun would overpower any glare produced from the solar modules in this situation. 4.4 Airports and PV Solar Modules PV installations are commonly located next to highways and are becoming more common at airports around the country, where low-profile PV modules can be safely situated near runways because they do not pose an obstruction hazard (FAA 2010). The potential for glint and glare from PV modules at airports has been studied extensively, and these studies have produced a consensus that PV modules are safe for use at airports because of the absorbing rather than reflecting nature of PV technology (FAA 2010). The FAA has issued findings of No Hazard for PV installations at commercial airports including Denver International Airport, San Francisco Airport, Fresno Airport, and Oakland Airports (Spaven Consulting 2011). Some installations, such as the PV solar array at the Oakland Airport, are located directly adjacent to runways. A 14MW PV facility is located on Nellis Air Force Base in Nevada less than two miles from a base airfield. A 2011 study which reviewed incident reports from the United Kingdom and United States did not find any evidence from existing solar facilities where problems of glare affecting pilots were reported (Spaven Consulting 2011).

14 IVSC2 Solar Project 5.0 CONCLUSION/SUMMARY OF KEY FINDINGS PV modules are designed to absorb rather than reflect sunlight. Typical solar modules reflect less than 10 percent of the solar radiation striking the panel, and do not produce a level of glint or glare that would be distracting or harmful to viewers on the ground or in the air. The modules are comparable to common sources of glare that already exist in the environment, including surface water. A number of glint/glare studies have been completed in the last few years in Imperial County to evaluate the glint/glare impacts from development of various PV solar facilities (proposed with both fixed-tilt and tracking PV modules). None of the studies found a risk of nuisance or hazard from glint/glare to ground or air-based observers, and no issues have been reported at built facilities. 2 Because the reflectivity of typical PV solar is lower than surrounding surfaces found in and around the study area, any glare produced is anticipated to be consistent with other sources of glare in the area. Any glare experienced from the proposed project at dawn or dusk is not anticipated to be harmful or constitute a nuisance to ground-level or near-ground level viewers (such as vehicles on nearby roadways). Any glint or glare perceived would be overpowered by the brightness of the sun itself. The lack of nearby recreation areas, major roadways, or other sensitive viewing areas limits potentially sensitive ground-level viewers to nearby residences. Views of the project site from the residences will be at least partially screened by fencing, distance and vegetation, further limiting the possibility of glare. The airports in the area are situated at sufficient distances (8.3 and 17.8 miles south of the project site) so that glint and glare will not be an issue. The project is not anticipated to pose a risk to landing/departing aircraft at these airports or to military aircraft utilizing MOAs or MTRs in the area. The glint or glare that will be generated from installation of PV modules associated with the proposed project is considered limited based on the absorptive rather than reflective qualities of PV modules. The impact from project implementation in terms of glint or glare is considered less than significant. 6.0 REFERENCES American Concrete Pavement Association Albedo: A Measure of Pavement Surface Reflectance. Available online: (Accessed September ). Budikova, Dagmar "Albedo." Encyclopedia of Earth. Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment. Available online: (Accessed September 26, 2012). 2 Studies reviewed include: 1) Calexico Solar Farm, Glare Analysis for Ground Traffic, and Glare Analysis for Air Traffic (The Good Company 2011a); and 2) Calipatria Solar Farm I and II, Midway I, and Midway II Glare Analysis (The Good Company 2011b).

15 IVSC2 Solar Project FAA Technical Guidance for Evaluating Selected Solar Technologies on Airports. Available online: f. (Accessed August 31, 2012). Pidwerny, M Earth-Sun Relationships and Insolation. Fundamentals of Physical Geography. 2 nd Edition. Available online: (Accessed September 12, 2012). Shields, Mark PV Systems: Low Levels of Glare and Reflectance vs. Surrounding Environment. Sunpower. Available: Type&blobheadername2=Content- Disposition&blobheadervalue1=application%2Fpdf&blobheadervalue2=inline%3B+filena me%3dphotovoltaic%2bsystems%2b- %2BLow%2Blevels%2Bof%2BGlare%2Band%2BReflectance%2Bvs%2BSurrounding% 2BEnvironment_.pdf&blobkey=id&blobtable=MungoBlobs&blobwhere= & ssbinary=true. (Accessed September 26, 2012). Spaven Consulting Solar Photovoltaic Energy Facilities: Assessment of Potential for Impact on Aviation. Report No.10/344/RPS/1. Available online: =374831&theApnkey= &theModule=1. (Accessed September 26, 2012). The Good Company. 2011a. Appendix J: Glare Analysis (Calipatria I, Midway I and Midway II). Available online: ftp://ftp.co.imperial.ca.us/icpds/eir/cluster-i-solar/44appj-glareanalysis.pdf. (Accessed September 26, 2012). The Good Company, 20011b. Appendix F: Glare Analysis for Ground Traffic/Appendix G: Glare Analysis for Air Traffic. Available online: ftp://ftp.co.imperial.ca.us/icpds/eir/mountsignal-solar/appendix-b-aesthetics-visualization/05calex-2-phase-a-glare.pdf. (Accessed September 26, 2012). United States Air Force and National Park Service. Western Pacific Regional Sourcebook. Chapter 2: Types of Airspace and National Park System Units. Available online: Sourcebook.htm. (Accessed September 26, 2012).

16 IVSC2 Solar Project APPENDIX A Department of Defense Preliminary Screening Tool Output

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18 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports prescreening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: Long Range Radar Geometry Type: Polygon Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir N W N W N W N W Horizontal Datum: NAD83 Map Legend: Green: No anticipated impact to Air Defense and Homeland Security radars. Aeronautical study required. Yellow: Impact likely to Air Defense and Homeland Security radars. Aeronautical study required. Red: Impact highly likely to Air Defense and Homeland Security radars. Aeronautical study required.

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20 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports pre-screening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: NEXRAD Geometry Type: Polygon Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir Horizontal Datum: NAD83 N W N W N W N W Because the NEXRAD can detect wind turbines occasionally at great distance, NOAA would like to know the location of all wind farm projects so that corrupted radar data can be flagged. Send project information directly to NOAA at wind.energy.matters@noaa.gov or through the National Telecommunications & Information Administration (NTIA) in the Dept. of Commerce. NOAA protects all wind project information as proprietary and sensitive. Map Legend: Green: No Impact Zone. Impacts not likely. NOAA will not perform a detailed analysis, but would still like to know about the project. Dk Green: Notification Zone. Some impacts possible. Consultation with NOAA is optional, but NOAA would still like to know about the project. Yellow: Consultation Zone. Significant impacts possible. NOAA requests consultation to discuss project details and to perform a detailed impact analysis. NOAA may request mitigation of significant impacts. Orange: Mitigation Zone. Significant impacts likely. NOAA will likely request mitigation if a detailed analysis indicates that the project will cause significant impacts. Red: No-Build Zone. Severe impacts likely. NOAA requests developers not build wind turbines within 3 km of the NEXRAD. Detailed impact analysis required.

21 DoD Preliminary Screening Tool Page 2 of 2 8/24/2012

22 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports prescreening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: Military Operations Geometry Type: Single Point Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir N W Horizontal Datum: NAD83 Your structure falls within the confines of M-ABEL SOUTH, and may have an impact on military operations. For a more detailed review, please contact the US Marine Corps Representative, FAA Western Service Area at (425) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Any questions interpreting the map, please Steve Sample with your question/s and phone number at steven.sample@pentagon.af.mil Your structure falls within the confines of VR1211, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Your structure falls within the confines of VR288, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. This is a preliminary review of your proposal and does not preclude official FAA processes. Your search data is not retained and the privacy of all your searches is assured.

23 DoD Preliminary Screening Tool Page 2 of 2 8/24/2012

24 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports prescreening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: Military Operations Geometry Type: Single Point Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir N W Horizontal Datum: NAD83 Your structure falls within the confines of M-ABEL SOUTH, and may have an impact on military operations. For a more detailed review, please contact the US Marine Corps Representative, FAA Western Service Area at (425) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Any questions interpreting the map, please Steve Sample with your question/s and phone number at steven.sample@pentagon.af.mil Your structure falls within the confines of VR1211, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Your structure falls within the confines of VR288, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. This is a preliminary review of your proposal and does not preclude official FAA processes. Your search data is not retained and the privacy of all your searches is assured.

25 DoD Preliminary Screening Tool Page 2 of 2 8/24/2012

26 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports prescreening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: Military Operations Geometry Type: Single Point Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir N W Horizontal Datum: NAD83 Your structure falls within the confines of M-ABEL SOUTH, and may have an impact on military operations. For a more detailed review, please contact the US Marine Corps Representative, FAA Western Service Area at (425) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Any questions interpreting the map, please Steve Sample with your question/s and phone number at steven.sample@pentagon.af.mil Your structure falls within the confines of VR1211, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Your structure falls within the confines of VR288, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. This is a preliminary review of your proposal and does not preclude official FAA processes. Your search data is not retained and the privacy of all your searches is assured.

27 DoD Preliminary Screening Tool Page 2 of 2 8/24/2012

28 DoD Preliminary Screening Tool Page 1 of 2 8/24/2012 «OE/AAA DoD Preliminary Screening Tool Disclaimer: The DoD Preliminary Screening Tool enables developers to obtain a preliminary review of potential impacts to Long-Range and Weather Radar(s), Military Training Route(s) and Special Airspace(s) prior to official OE/AAA filing. This tool will produce a map relating the structure to any of the DoD/DHS and NOAA resources listed above. The use of this tool is 100 % optional and will provide a first level of feedback and single points of contact within the DoD/DHS and NOAA to discuss impacts/mitigation efforts on the military training mission and NEXRAD Weather Radars. The use of this tool does not in any way replace the official FAA processes/procedures. Instructions: Select a screening type for your initial evaluation. Currently the system supports prescreening on: -Air Defense and Homeland Security radars(long Range Radar) -Weather Surveillance Radar-1988 Doppler radars(nexrad) -Military Operations Enter either a single point or a polygon and click submit to generate a long range radar analysis map. Military Operations is only available for a single point. At least three points are required for a polygon, with an optional fourth point. The largest polygon allowed has a maximum perimeter of 100 miles. Screening Type: Military Operations Geometry Type: Single Point Point Latitude Longitude Deg Min Sec Dir Deg Min Sec Dir N W Horizontal Datum: NAD83 Your structure falls within the confines of M-ABEL SOUTH, and may have an impact on military operations. For a more detailed review, please contact the US Marine Corps Representative, FAA Western Service Area at (425) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Any questions interpreting the map, please Steve Sample with your question/s and phone number at steven.sample@pentagon.af.mil Your structure falls within the confines of VR1211, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. Your structure falls within the confines of VR288, and may have an impact on military operations. For a more detailed review, please contact Scott Hall at (951) This POC will review the analysis and identify any additional areas of concern. Upon completion of this process, the POC will provide you a letter stating the results of the review. This is a preliminary review of your proposal and does not preclude official FAA processes. Your search data is not retained and the privacy of all your searches is assured.

29 DoD Preliminary Screening Tool Page 2 of 2 8/24/2012