LPS Final Report.pdf

Base Wide Lightning Protection Systems Investigation Eielson AFB, Alaska Project Number: FTQW 18-0503

FINAL REPORT

For:

354th Contracting Squadron 2310 Central Avenue, Building 2258 Eielson AFB, Alaska 99702

November 9, 2023

Base Wide Lightning Protection Systems Investigation

Table of Contents

MAIN REPORT

EXECUTIVE SUMMARY

DESIGN CRITERIA

ASSESSMENT PROCESS AND DESCRIPTION

DIFFERENCES FROM 2018 REID MIDDLETON REPORT (2018 RMR)

ADDITIONAL 20 BUILDING ANALYSIS

B1315 R-11 FUEL TANK SHELTER

SURGE PROTECTIVE DEVICE (SPD)

AIR TERMINALS AND LIGHTNING PROTECTION SYSTEMS

APPENDICES

APPENDIX A – BASE WIDE MAP

APPENDIX B – BUILDING SUMMARY

APPENDIX C – LIGHTNING GROUND FLASH DENSITY

APPENDIX D – NFPA 780 – SIMPLIFIED RISK ASSESSMENTS

APPENDIX E – NFPA 780 – DETAILED RISK ASSESSMENT

APPENDIX F – COST ESTIMATES

APPENDIX G – REID MIDDLETON REPORT 2018 (FINAL)

APPENDIX H – DESIGN REVIEW COMMENTS AND COORDINATION

By:

POND

3500 Parkway Lane, Suite 500 Peachtree Corners, Georgia 30092

Design Alaska, Inc.

601 College Road Fairbanks, Alaska 99701

November 9, 2023

FTQW 18-0503

LPS Investigation

EXECUTIVE SUMMARY

This final report provides an inventory and assessment of our survey of 112 buildings located on Eielson Air Force Base (EAFB), Alaska with respect to Lightning Protection Systems. This is a follow-up report to a similar study performed by Reid Middleton in 2018 (2018 RMR) that included 92 buildings. An additional 20 buildings were added to that list with all assessments updated based on changed or updated Unified Facility Codes (UFC), measured climate data, and or change in building functions.

Our building summary is provided as Appendix B.

DESIGN CRITERIA

UFC 3-575-01, Change 1 (October 01, 2021) – Lightning and Static Electricity Protection Systems

Air Force Manual (AFMAN) 32-1065 (17 July 2020) – Grounding Systems

Air Force Manual (AFMAN) 91-201 (9 March 2022) – Explosives Safety Standards

National Fire Protection Agency (NFPA) – 780-2023

ASSESSMENT PROCESS AND DESCRIPTION

All facilities located on EAFB, Alaska generally follow recommendations for a Lightning Protection System (LPS) as governed by UFC-3-575-01. Wherein, Chapter 3 of the UFC provides language that specific buildings based on function are required to have an LPS. The most common example of the latter is a facility that stores explosive munitions.

All other general facilities are to undergo a Risk Assessment analysis as prescribed by Annex L of NFPA

780. There are two types of Risk Assessments within NFPA 780, Simplified and Detailed. Following language of the UFC and Guidance for Determination of Lightning Protection Systems on PACAF Air Force Facilities memorandum (16 December 2014), the Simplified Risk Assessment is initially performed on all buildings, unless they were already explicitly required to have a LPS by their function, Authority Having Jurisdiction, or other. The Simplified Risk Assessment results in one of two options: “LPS optional” or “LPS Recommended.” With a result of “LPS Optional”, the analysis generally stops and an LPS is not provided for the facility.

Where the Simplified Risk Assessment recommends an LPS, the Detailed Risk Assessment is to then be performed. The Detailed Risk Assessment results in similar conclusions to the Simplified with a “LPS optional” or “LPS recommended”, but is segmented into one of four categories: Loss of Life or Injury, Loss of Service, Loss of Historical Significant, and Economic Loss. The Detailed Risk Assessment will provide an optional/recommended conclusion for each of those four categories. Empirically, the Loss of Life or Injury is generally the most restrictive, and the one that most often applies to all facilities.

DIFFERENCES FROM 2018 REID MIDDLETON REPORT (2018 RMR)

Major differences between this report and Reid Middleton’s Report include Change 1 of UFC 3-575-01, and updates from NFPA 780-2017 to 780-2023. All buildings were re-analyzed using an increase to the lighting strike density used previously. The lighting strike density analysis is provided in Appendix C.

Additionally, three (3) buildings of the previously surveyed 92 building list were updated to include their new function as Critical Communications Facilities.

A summary of changes to the analysis of the 92-building list previously reported in 2018 RMR is as follows:

Three (3) buildings are required to have an LPS because of their function as a critical communication facility (per UFC 3-575-01, Change 1, Section 3-1.1.1: Critical Communications Facilities):

• B1347 – Maintenance SQ

• B2268 – Comm Network Services

• B3110 – Telephone Exchange

Six (6) buildings were flagged as “LPS Recommended” under the Simplified Risk Assessment. Under the 2018 RMR they were classified as “LPS Optional”. This is purely from a result of increased lightning strike density. A Detailed Risk Assessment performed for all 6 buildings concluded in “LPS Optional”.

• B1341 – Avionics Shop

• B1353 – Aircraft Armament Flight

• B3347 – Arctic Survival

• B3349 – Base Medical Clinic

• B3425 – Supply/Vehicle Warehouse

• B4370 – Joint Mobility Complex

All other buildings maintained their status and recommendations as previously reported in the 2018 RMR.

ADDITIONAL 20 BUILDING ANALYSIS

The additional buildings surveyed are relatively new structures, designed and constructed within the previous five years and generally serve the expanded F-35 squadron housed at EAFB, Alaska.

Thirteen (13) buildings were initially designed and constructed to include an LPS, either from their inclusion of explosive munitions, housing critical equipment, specific requirement of the project’s construction, or other requirement(s).

• B1324 – Munitions Assembly

• B1328 – Missile Maintenance

• B1358 – 4-Bay MX / SP OPS / Amu Facility

• B1361 – Hanger / Propulsion MX / Dispatch

• B1362 – F-35 16 Bay Aircraft Shelter SQ 1

• B1364 – F-35 16 Bay Aircraft Shelter SQ 2

• B4115 – F-35 Simulator

• B6351 – Earth Covered Munitions Igloo

• B6355 – Earth Covered Munitions Igloo

• B6356 – Earth Covered Munitions Igloo

• B6358 – Earth Covered Munitions Igloo

• B6359 – Earth Covered Munitions Igloo

• B6362 – Earth Covered Munitions Igloo

It is of note that B1364 has a full conventional LPS with air terminals spaced about the perimeter of the roof, and B1362 does not. These two structures are nearly identical in their construction and purpose.

B1362 however, does have adequate bonding and grounding and qualifies under the Aircraft Sunshade and Shelter provisions of UFC 3-575-01, Section 3-5.13. B1364 was designed and constructed one year prior to B1362 and it is believed that in this one year the RFP and design team of that facility picked up on the provisions of the UFC in not needing a full conventional LPS for this type of facility.

To summarize, Aircraft Sunshades and Shelters do require a Lightning Protection System where aircraft parked underneath carry munitions, but the building itself can act as the terminal and ground conductors where construction meets specific qualifications.

Six (6) buildings were analyzed as general facilities and concluded in an “LPS Optional” status under the Simplified Risk Assessment:

• B1220 – OSS/Weapons/Intel Facility

• B1339 – Satellite Dining Facility

• B1342 – AGE Storage Facility / Fill Stand

• B5222 – School AGE Facility

• B6210 – Consolidated Munitions Admin. Facility

• B6395 – 28PT Indoor CATM Range (Sign = B6388, Labeled = B6389)

The remaining building B1315 R-11 Fuel Tank Shelter is addressed in its own section below.

Special Note: Multiple Buildings in the total assessment currently calculated as “LPS Optional” are approaching a 100% ND:NC threshold on their Simplified Risk Assessment. As described in Appendix C, these calculations are very sensitive, and directly proportional to strike density. These and other similar buildings may require additional calculations performed under the Detailed Risk Assessment should the strike density be re-evaluated in the future with more historical data.

There are many variables that go into the Detailed Risk Assessment, but the following trends are generally found when anticipating the likelihood of the Detailed Risk Assessment to also calculate an “LPS Recommended”. When comparing the ratio of ND:NC as a %, from the Simplified, the higher the percentage generally conveys that the building collection area is large or the content/operation of the facility is sensitive. The facility would have to either be very large (to drive up the collection area), or contain significant amounts of flammable/combustible liquids or materials. Risk of Explosions, critical care, sensitive electronics, and other similar aspects of the facility significantly increase the likelihood that the facility will be flagged for an LPS.

To summarize, when looking at just the % ratio of the Simplified Risk Assessment, a value of > 1000%, or if the facility contains those sensitive aspects as mentioned, it has a greater chance of being determined as “LPS Recommended”. A Simplified % ratio of 110%, with otherwise no sensitive aspects, has a low chance of being determined as “LPS Recommended.” This summarized statement is given as a tool to make early decisions on buildings that calculate near or may in the future when being just slightly above the 100% threshold of the ND:NC from the Simplified Risk Assessment.

B1315 R-11 FUEL TANK SHELTER

This facility houses vehicles used for the refueling of aircraft, and primarily contains storage of JP-8 aircraft fuel. The Fire Protection design of the sprinkler system for this facility is Extra Hazard as a result of the quantities and type of stored materials . Its function is similar to B3240 Fuels Building.

This building is flagged within this report because the RFP for the design and construction of that facility deemed that “An LPS is not required for this facility.” This was most likely a result of a Simplified Risk Assessment that concluded in “LPS Optional”, and therefor the process was completed.

However, as additionally expanded upon in the lightning strike density of Appendix C, a low strike value of 0.067 would have put the Simplified Risk Assessment comparison of ND:NC at 72%. A strike density value of 0.094 or higher would have then required the additional assessment of the Detailed Risk Assessment.

It is shown in Appendix C that the strike density value for this area is above 0.094.

Under the Detailed Risk Assessment for this facility, an LPS is recommended if the facility is deemed at a “Risk of Explosion.” This singular determination results in several variables that overwhelming calculate that an LPS is recommended under the Loss of Life or Injury category. This determination was equally concluded within the 2018 RMR for B3240 Fuels Building. And B3240 equally determined, and received, a LPS for the same recommendation under Loss of Life or Injury in its Detailed Risk Assessment. Analysis of the JP-8 Class II, combustible liquid with an LFL of 0.7% and UFL of 5.0% can produce a mixture of vapor in air that when provided with heat (autoignition point is 410°F) or ignition source, could cause an explosion.

SURGE PROTECTIVE DEVICE (SPD)

This section is included within the final report as a review comment to the Draft Investigation Report. The review comments can be referenced in Appendix H. The specific review comment is as follows:”

Any and all facilities that have been deemed optional must have surge protection devices installed in lieu of lightning protection systems unless directed by code/regulation.

Surge Protective Devices, or previously and more specifically for electrical distribution systems, known as Transient Voltage Surge Suppressor (TVSS), were not adopted formerly into the National Electrical Code until 2020. For the Unified Facilities Criteria under 3-520-01 Interior Electrical Systems, SPDs are required only where “sensitive or critical electronic equipment, as required by the activity or equipment manufacturer.” (Section 3-4, Change 2).

Historically, the prevalence of SPDs into the electrical distribution systems for DoD facilities is only common practice for new facilities constructed within the last 10 years. Any existing building that has not had a renovation within that time frame will most likely not have any SPDs as part of its installation.

Protective Entrance Terminals (PETs), which are a form of SPDs have been common practice for all copper telecommunication cables. With the prevalence of Fiber Optic Cable serving as the main and only Outside Plant (OSP) incoming to a building, the need to protect against surges and other transmitted voltages from exterior sources (ie lightning strikes) into the building are mitigated by the nonconductive glass material of fiber optic cable.

Where a Lightning Protection System is installed, it is a requirement of that system to also include SPDs for all electrical and telecommunication systems. However, where a facility is not required to have an LPS, it would subsequently not be required to have SPDs. It is generally recommended that electrical distribution systems employ a cascaded SPD system, as this protection provides multiple beneficial advantages to a system with serve any type of electronics. It is therefore recommended, by both the reviewer comment and the engineer of this report that all electrical systems be provided with SPDS, but it is noted that there is no known code or standard that would retroactively apply this to all existing electrical systems.

AIR TERMINALS AND LIGHTNING PROTECTION SYSTEMS

This section is included within the final report as a review comment to the Draft Investigation Report. The review comments can be referenced in Appendix H. The specific review comment is as follows:

Per the current AFCEC recommendation, LPSs should be designed to exclude an integral (air terminal) system when possible. For example, a faraday-like cage system can be used for a facility with steel.

The basic function of a conventional LPS is to provide the path of least resistance for a lightning strike, and to redirect the flow of energy around/away from the facility into earth. The basic components of that path are an irresistible metallic object located above the plane of that which you are trying to protect, a metallic down conductor to direct the path from above the plane to earth, and a well earthed ground system (usually multiple ground rods and a ground ring). In very specific scenarios, architectural and structural features of the building itself can serve as parts of this system. A metallic roof, metallic structural columns, and a foundation in direct contact with the earth are all forms of the basic three components as described above.

Per UFC 3-575-01, Section 3-5.3 Steel Frame Buildings, and 3-5.13 Aircraft Sunshades and Shelters, the building and omission of air terminals is possible based on the construction of the facility. It is suggested that this exception be utilized with caution. While economical, this is supplementing another’s system as the backbone to its own. Equally, within the State of Alaska, where energy conservation, means and methods for retaining building heat generally uses large amounts of insulating materials and practices at the roof assembly. These assemblies are generally non-conducive to the continuous metallic path desired to redirect the lightning strike. It is recognized that utilizing the facility structural elements as part of the LPS is efficient and economical.

APPENDIX A – BASE WIDE MAP

6366 6376

63716369

1455 1430

61596158

18186163

1826 6161

14346164

546075452

25752567

2157 2465

42304231

7535506

2433 2563

54475445

2183 2193

55855586

5579765

24822472

743 5582

5568 5585

5587722

2482726

5519 2625

62035

269362

34701

75202

75135

2553 2607

24842438

75110

75209

716724

24592432

23112287

632 634

74813

634632

532 538 544

534 540

628 630

23532333

24684807

1148 1225

4945 4995

49724938

52645263

5196 51985142

2272 3310

51625161

22082204

3436 3439

11281123

226622642262

151112132120621147191889524231610221743

12581260

570551

12061140

41053240

2511 2723

89006

LEGEND

LPS OPTIONAL (PER NFPA 780)

LPS RECOMMENDED (PER NFPA 780)

LPS REQUIRED (PER UFC OR OTHER)

1103 NORTH LOCALIZER GENERATOR

1109 14 GLIDESLOPE

1110 14 GLIDESLOPE GENERATOR

1111 32 LOCALIZER

1127 COMM FACILITY

1137 STORAGE FACILITY AND PAD

1140 THUNDER DOME HANGER

1141 AIRCRAFT MAINTENANCE SHOP

1151 RED FLAG OPS

1183 DET 460

1206 FIRE STATION #1

1216 AIRCRAFT CONTROL TOWER

1220 OSS/WEAPONS/INTEL FACILITY

1232 NOSE DOCK 7 HANGER

1246 HYDR FL BLDG

1258 32 GLIDESCOPE

1259 32 GLIDESCOPE GENERATOR

1260 TACAN

1304 PIXIE PAD

1311 FACILITY HEATING SHED

1312 POLAR PAD

1315 R-11 FUEL TANK SHELTER

1324 MUNITIONS ASSEMBLY

1325 DENALI PAD

1328 MISSILE MAINTENANCE

1331 SOUTH LOCALIZER GENERATOR

1333 14 LOCALIZER

1336 HYDRAULIC ELECTRIC SHOP

1337 18TH AGGRESSOR SQ

1339 SATELLITE DINING FACILITY

1340 HANGER

1341 AVIONICS SHOP

1342 AGE STORAGE FACILITY/FILL STAND

1344 AIRCRAFT HANGER

1346 ENGINE SHOP

1347 MAINTENANCE SQ

1348 CORROSION HANGER

1353 AIRCRAFT ARMAMENT FLIGHT

1358 4-BAY MX/SP OPS/AMU FACILITY

1361 HANGER/PROPULSION MX/DISPATCH

1362 F-35 16 BAY AIRCRAFT SHELTER SQ 1

1364 F-35 BAY AIRCRAFT SHELTER SQ 2

2210 OFFICE OF SPECIAL INVESTIGATIONS

2258 CIVIL ENGINEERING SQ

2268 COMM NETWORK SERVICES

3109 COMM SQ

3110 TELEPHONE EXCHANGE

3112 WING HQ

3229 VEHICLE MAINTENANCE SHOP

3240 FUELS FACILITY

3347 ARCTIC SURVIVAL

3349 BASE MEDICAL CLINIC

3425 SUPPLY VEHICLE WAREHOUSE

3426 BASE SUPPLY

3446 HAZMAT WAREHOUSE

3462 AMMO HEAD SHED

4105 CE SNOW BARN

4110 355TH FS-SQ OPS

4115 SIMULATOR FOR F-35'S

4304 COMM TRANSMITTER

4370 JOINT MOBILITY COMPLEX

4870 FIRE STATION #2

5222 SCHOOL AGE FACILITY

6120 E-HILL SECURITY BUILDING

6122 E-HILL MUNITIONS BUILD UP FACILITY

6126 MUNITIONS STORAGE

6128 MUNITIONS STORAGE

6132 MUNITIONS STORAGE

6134 MUNITIONS STORAGE

6136 MUNITIONS STORAGE

6154 WARM VEHICLE STORAGE

6161 NON-EXPLOSIVE STORAGE

6162 ARMED MUNITIONS STORAGE IGLOO

6163 NON-EXPLOSIVE STORAGE

6164 MUNITIONS STORAGE

6203 BASE POWER PLANT

6210 CONSOLIDATED MUNITIONS FACILITY

6225 BULK FUEL STORAGE OPS

6347 MUNITIONS STORAGE

6348 MUNITIONS STORAGE

6349 MUNITIONS STORAGE

6350 MUNITIONS STORAGE

6351 EARTH COVERED MUNITIONS IGLOO

6352 MUNITIONS STORAGE

6353 MUNITIONS STORAGE

6354 MUNITIONS STORAGE

6355 EARTH COVERED MUNITIONS IGLOO

6356 EARTH COVERED MUNITIONS IGLOO

6357 MUNITIONS STORAGE

6358 EARTH COVERED MUNITIONS IGLOO

6359 EARTH COVERED MUNITIONS IGLOO

6360 MUNITIONS STORAGE

6361 MUNITIONS STORAGE

6362 EARTH COVERED MUNITIONS IGLOO

6363 MUNITIONS STORAGE

6364 MUNITIONS STORAGE

6365 MUNITIONS STORAGE

6366 MUNITIONS STORAGE

6368 MUNITIONS STORAGE

6369 MUNITIONS STORAGE

6370 MUNITIONS BUILDUP

6371 MUNITIONS STORAGE

6372 MUNITIONS STORAGE

6373 MUNITIONS STORAGE

6374 MUNITIONS STORAGE

6376 MUNITIONS STORAGE

6377 MUNITIONS STORAGE

6385 CONVENTIONAL MUNITIONS

6395 28PT INDOOR CATM RANGE

6395 SKI LODGE

6421 COMBAT ARMS TRAINING AND

MAINTENANCE

89006 RAILHEAD AND PAD

BUILDING

NUMBER BUILDING DESCRIPTION

ENGINEER

HILL

QUARRY HILL

BUILDING

NUMBER BUILDING DESCRIPTION BUILDING

NUMBER BUILDING DESCRIPTION

APPENDIX A - EIELSON AFB, ALASKA - BASE WIDE MAP

APPENDIX B – BUILDING SUMMARY

FTQW-18-0503 EAFB LPS Investigation Appendix B

ND / NC

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action

1103 North Localizer Generator - - 7% No LPS None No change from 2018 None

1109 14 Glideslope Yes(1) Yes(6) 5%

Existing LPS (1) 36" rod mounted on 1" RGS conduit w/ (2) bare CU down conductors. Existing adjacent 30' tall tower, 15' from B1109, with (1) LPS rod and (3) bare CU down conductors

UFC 3-575-01, paragraph 3-5.8 requires a minimum of (2) air terminals. Adjacent tower provides rolling sphere coverage. No LPS revisions required.

36" rod on 1" RGS has been removed. LPS still provided by adjacent antenna as stated in 2018 report.

None

1110 14 Glideslope Generator - - 35%

Existing LPS (1) 12" rod on both ends of peaked roof, connected via (2) bare CU down conductors to (2) ground rods, lower than adjacent antenna and light beacon

LPS in good condition, not required No change from 2018 LPS in good condition. No recommended action, however LPS is not required for structure.

1111 32 Localizer Yes(1) Yes(6) 4%

Existing LPS (1) 36" rod mounted on 1" RGS conduit w/ (2) bare CU down conductors.

UFC 3-575-01, paragraph 3-5.8 requires a minimum of (2) air terminals.

No change from 2018 Same recommendation as

1127 Comm Facility - - 5% None No LPS None

1137 Storage Facility and Pad - - 8%

Existing LPS (6) 24" rods and (4) down conductors in RGS conduit

LPS in good condition, not required Existing LPS, 4 wood poles with air terminals, down conductors and X cross catenary system. Site is surrounded by high mast lighting that is grounded.

LPS is in good condition, no action recommended.

1140 Thunder Dome Hangar - - 3932% 14241% 142% 2% 142%

No exisitng LPS, (4) rods on posts on top of abandoned ATCT

Detailed analysis indicates that LPS, and SPDs, should be provided to this building

No change from 2018 Same recommendation as

1141 Aircraft Maintenance Shop - - 27% None No LPS None

1151 Red Flag Ops - - 86%

Existing LPS None Air terminals spaced about perimeter with down conductors. Multiple antennas (~6 qty) extend above zone of protection.

Bond antenna support structures and provide SPD(s) for antenna communication cables.

1183 Det 460 - - 9% None No LPS None 1206 Fire station #1 - - 312% 1% 0% 0% 0% None No LPS None

1216 Aircraft Control Tower Yes(2) Yes(7) 255% Existing LPS (6) 36" rods on 15' high posts on top of tower

None No change from 2018 None

1232 Nose Dock 7 hangar - - 554% 4% 0% 0% 0% None No LPS None

BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

1246 Hydrant Fuels Bldg - - 36%

Existing LPS (5) 24" rods along peak of roof and (1) rod on vent hood.

Antennas taller than rods

LPS in good condition, not required No change from 2018 None

1258 32 Glideslope Yes(1) Yes(6) 1%

No Existing LPS. Existing adjacent 30' tall tower, 15' from B1258, with (1) LPS rod and (3) bare CU down conductors

UFC 3-575-01, paragraph 3-5.8 requires a minimum of (2) air terminals. Adjacent tower provides rolling sphere coverage. No LPS revisions required.

No change from 2018 None

1259 32 Glideslope Generator - - 10% None No LPS None

1260 TACAN Yes(1) Yes(6) 6%

Existing LPS on adjacent 35' tower 20' away from B1260

UFC 3-575-01, paragraph 3-5.8 requires a minimum of (2) air terminals. Adjacent tower provides rolling sphere coverage. No LPS revisions required.

No change from 2018 None

1304 Pixie Pad No(1) No(1) 1%

No structure. Pad is surrounded by a 10' tall cyclone fence. Existing 40' tall poles with a catenary LPS are located at each corner. Per the Gov't, this pad presently has no function and is unused, as pad is damaged and unuseable.

Existing Catenary system does not provide 100' rolling sphere coverage.

As pad is no longer used for munitions storage, recommend LPS be demolished.

No change from 2018 Same recommendation as

1311 Facility Heating Shed - - 0% None No LPS None

1312 Polar Pad Yes(3) Yes(4) 3%

No structure. Pad is surrounded by a 10' tall cyclone fence. Existing (8) 40' tall poles with a catenary LPS are located around pad perimeter. There does not appear to be an existing ground ring. During Red Flag Operations, 1.4 munitions are stored on the pad

LPS required by AFMAN 91-201 and DoD 6055.09-M. Assuming maximum storage height of 10', existing catenary system provides 100' rolling sphere coverage. Add ground ring around perimeter and connect to LPS

No Change from 2018 Same recommendation as

1325 Denali Pad Yes(3) Yes(4) 3%

No structure. Pad is surrounded by a 10' tall cyclone fence. Existing (8) 40' tall poles with a catenary LPS are located around pad perimeter. Poles only connected with overhead conductors at South end of pad. There does not appear to be an existing ground ring. During Red Flag Operations, 1.1 munitions are stored on the pad

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does not provide 100' rolling sphere coverage. Add additional overhead conductors to connect West and East side poles together. Add ground ring around perimeter and connect to LPS

No Change from 2018 Same recommendation as

1331 South Localizer Generator - - 14% None No LPS None

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

1333 14 Localizer Yes(1) Yes(6) 6%

Existing (1) LPS aerial rod on roof UFC 3-575-01, paragraph 3-5.8 requires a minimum of (2) air terminals. Add additional rod on roof.

No change from 2018 Same recommendation as

1336 Hydrulic Electric Shop - - 46% None No LPS None 1337 18th Aggressor SQ - - 4% None No LPS None

1340 Hangar - No 85%

Building deleted from scope per Gov't memo dated 01.24.17 regarding existing "metal cage" system.

N/A No change from 2018 Th exception of the "metal cage" need documentation of approval by the AFSC/SEW per AFMAN 1- 201.

1341 Avionics Shop - - 137% 6% 0% 0% 0% None No LPS None 1344 Aircraft Hangar - - 67% None No LPS None 1346 Engine Shop - - 24% None No LPS None

1347 Maintenance SQ - Yes(5) 13%

None No LPS, multiple antennas extend above roof.

Requires LPS and SPD for Critical Communications Facility.

1348 Corrosion Hangar - - 1084% 6% 0% 0% 0% None No LPS None

1353 Aircraft Armament Flight - - 103% 6% 0% 0% 0%

None No LPS, multiple antennas extend above roof.

None

2210 Office of Special Investigations - - 2% None No LPS None 2258 Civil Engineering SQ - - 28% None No LPS None

2268 Comm Network Services - Yes(5) 22%

None No LPS, multiple antennas extend above roof.

Requires LPS and SPD for Critical Communications Facility.

3109 Comm SQ - - 6% None No LPS None

3110 Telephone Exchange - Yes(5) 59%

Existing LPS None No LPS. 60' tall antenna with (1) air terminal, 20' from building provides partial zone of protection, but not for east side of facility.

Requires LPS and SPD for Critical Communications Facility.

3112 Wing HQ - - 527% 2% 0% 0% 0% None No LPS None 3229 Vehicle Maint Shop - - 28% None No LPS None

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

3240 Fuels Bldg - - 673% 2602% 26% 11% 26%

Existing LPS system. 25,000 GA of jet fuel. Trucks used to fuel jets

None Existing LPS. Multiple antennas extend above LPS system. No air terminal on HVAC vent.

Bond antenna support structures and HVAC ventilation. Provide SPDs for antenna communication cables.

3347 Arctic Survival - - 108% 7% 0% 0% 0% None No LPS None 3349 Base Medical Clinic - - 180% 7% 0% 0% 0% None No LPS None 3425 Supply/Vehicle Warehouse - - 139% 7% 0% 0% 0% None No LPS None 3426 Base Supply - - 72% None No LPS None 3446 HAZMART Warehouse - - 16% None No LPS None 3462 AMMO Head Shed - - 15% None No LPS None 4105 CE Snow Barn - - 187% 3% 0% 0% 0% None No LPS None 4110 355th FS-SQ Ops - No(2) 529% 2% 0% 0% 0% None No LPS None

4304 Comm Transmitter - - 24%

None No LPS. Surrounded by poles with air terminals and catenary system.

None

4370 Joint Mobility Complex - - 111% 7% 0% 0% 0%

None Air terminals spaced about perimeter of upper and lower roofs.HVAC and other building system penetrations were also bonded. Multiple antennas extending above zone of protection that would need bonding and protection. High Bay pole lighting on north side of structure, provide some protection for building structure.

Bond atennas and provice SPDs for antenna communication cables.

4870 Fire Station #2 - - 521% 3% 0% 0% 0% None No LPS None 6120 E-Hill Security Building - - 0% None No LPS None

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6122 E-Hill Munitions Build Up Bldg. Yes(3) Yes(4) 216%

Existing Catenary LPS with (2) 25' poles 50' West and East of building. East poles are interconnected. West poles are interconnected. 24" aerial rods are provided on concrete above building entries and on an exhaust vent.

Building previously used for munitions assembly, now munitions storage.

Does not appear to have existing ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6126 E-Hill Munitions Storage Yes(3) Yes(4) 55%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6128 E-Hill Munitions Storage Yes(3) Yes(4) 55%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6132 E-Hill Munitions Storage Yes(3) Yes(4) 110%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6134 E-Hill Munitions Storage Yes(3) Yes(4) 110%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6136 E-Hill Munitions Storage Yes(3) Yes(4) 28%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6154 Warm Vehicle Storage - - 6% None No LPS None 6161 Non-explosive Storage - - 1% None No LPS None

6162 Armed Munition Storage Igloo Yes(3) Yes(4) 55%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

6163 Non-explosive Storage - - 1% None No LPS None

6164 E-Hill Munitions Storage Yes(3) Yes(4) 60%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendation as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6203 Base Power Plant - - 3604% 52% 1% 1% 1%

Existing LPS on B6203 lower roofs, bag house roofs, and nearby Feeder and Generation buildings. No LPS on main structure roof.

Detailed Risk Analysis indicates LPS revisions are optional

No change from 2018 Same recommendations as

6225 Bulk Fuel Storage Ops - - 2% None No LPS None

6347 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6348 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6349 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6350 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6352 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6353 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6354 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6357 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6360 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6361 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6363 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6364 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6365 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6366 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6368 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6369 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6370 Q-Hill Munitions Buildup Yes(3) Yes(4) 7%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6371 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6372 Q-Hill Munitions Storage Yes(3) Yes(4) 530%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6373 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

6374 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6376 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6377 Q-Hill Munitions Storage Yes(3) Yes(4) 133%

Existing LPS with 24" rod on exhaust vent hood and 24" rod on top of concrete building entry. Both rods appear connected to structure with bare CU conductors. LPS appears in good condition. No apparent ground ring.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does appears to provide 100' rolling sphere coverage at concrete entries to earth coverd structure. Add ground ring and connect to LPS, provide SPDs for power and communications services.

No change from 2018 Same recommendations as

6385 Q-Hill Conventional Munitions Yes(3) Yes(4) 413%

Existing catenary LPS above building with (3) 40' poles on North side of building and (3) 40' poles on South side of building. Each pair of North- South poles are interconnected with a single conductor. There does not appear to be an existing ground ring or SPD protection. Live munitions assembly.

LPS required by AFMAN 91-201 and DoD 6055.09-M. Based on field notes, existing catenary system may not provide 100' rolling sphere protection.

The facility also may not have an existing ground ring or SPD protection.

Recommend Stantec revisit this location during the Draft RD review meeting site visit to confirm pole locations and heights.

No change from 2018 Same recommendations as

6395 Ski Lodge - - 3% None No LPS None

Combat Arms Training and Maintenance - - 5%

None No LPS None

R1 / 10-5

(Loss of Life or Injury)

R2 / 10-3

(Loss of Service)

R3 / 10-3

(Historical Loss)

R4 / 10-3

(Economic Loss)

Existing Conditions Recommended Action Existing Conditions Recommended Action BLDG NameBLDG#

2018 Reid Middleton Report 2023 Report

LPS

Req.

By

STND.

LPS

Req.

By

STND.

Simplified Detailed Results

89006 Railhead and Pad Yes(3) Yes(4) 4%

No structure. This is a pad with existing 40' tall poles at each corner and at the center of the pad. There are no existing overhead catenary conductors. There does not appear to be an existing ground ring. This pad is sometimes used for munition storage

LPS required by AFMAN 91-201 and DoD 6055.09-M. Existing catenary system does not provide 100' rolling sphere protection.