**.,.ca.~."** 

### • ",**::';~a** 

## .; DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF AIR QUALITY
Michael O. Leavitt 150 North 1950 West Gowmor P.O. Box 144820 Dianne R. Nielson. Ph.D. Salt Lake City, Utah 84114-4820 Exccaavc Dim:lDr (801) 53&4000 Voice Russell A. Roberts (801) 536-4099 Fax Dim:lDr (801)**53~** 14 T.D.D. August 30. 1995 DAQE-7i5-95

James VanOrman Hill Air Force Base OO-ALCIEM 7276 Wardleigh Road Hill Air Force Base. Utah 84056-5990 Re: Approval Order to Modify AO for Engine Test Facilities. Davis County,**~DS-A2** Dear Mr. VanOrman: The attached document is an Approval Order for the above referenced project. Future correspondence on this Approval Order should include the engineer's name as well as the DAQE number as shown onthe upper right-hand comer ofthis letter. Please direct any technical questions you may have on this project to Mr. Dwight V. Bird. He may be reached at (801) 536-4048.

ecretary

cc: Davis County Health Deparonem Mike Owens. EPA Region 

## vm Mike Graziano 

# •

4.2.4-157 "',meo on reCYCleO caper

# STATE OF UTAH Departnlent ofEnvironmental Quality Division of Air Quality APPROVAL ORDER TO MODIFY AO FOR ENGINE TEST FACILITIES Prepared By: Dwight V. Bird, Engineer



## APPROVAL NUMBER DAQE-775-95 Date: August 30, 1995

Source 

# HILL AIR FORCE BASE Russell A. Roberts Executive Secretary Utah Air 

### Quality 

### Board

4.2.4-158DAQE-775-95 Page 2



### Abstract Hill AirForce Base has 

### requested a modificalWn to the consolidatedApproval Order (AO)for all of itsaircraftengine test facilities. The AO covers eight test facilities (eitherhush houses orteststands), oneof which isgrandfathered, and

### two ofwhich are replacementsforgrandfalheredstands. This

### AO will 

### supersede DAQE-469-94, dated June 9, 1994. This 

### modificalWn clarifies the lOCalWn ofthe test suuuis and

### hush houses, and allowsfor the use of JP-5jetfuel, which is requiredfor Navy Aircraft. The above-referenced project has been evaluated and found to be consistent with the requirements ofthe UtahAir ConservationRules (UACR) arid the Utah Air ConservationAct. A public commentperiod was not required for this project. This airquality AO authorizes theproject with the following conditions and failure to comply with any ofthe conditions may constitute a violation ofthis order: General Conditions: 1. This AO applies to the following company: Hill Air Force Base OO-ALCIEM 7274 Wardleigh Road Hill Air Force Base, Utah 84056-5137 Phone: (801)-777-0359 FAX: (801)-777-4306 The equipment listed below in this AO shall be operated at the following location: PLANT LOCAnON: See Condition #5 for location ofbuildings. UniversalTransverseMercator (UTM)Coordinate System: (4,525.000)meters Northing, (425,000) meters Easting 2. DefInitions oftenns, abbreviations, and references used in this AO conformto those used in the UACR, Utah Administrative Codes (UAC), and Series 40 ofthe Code ofFederal Regulations (40 CFR). These defInitions take precedence Unless specifically defined otherwise herein. 3. Hill AirForce Base shall install and operate the Aircraft Engine Test Facilities according to this AO requested in the Notices ofIntent dated October 14, 1994, January 7, 1994, January 20, 1993, and April 15. 1987. 4. A copy ofthis AO shall be posted on site. The AO shall be available to the employees who operate the air emission producing equipment. These employees shall receive

4.2.4-159DAQE-i75-95 

## --.,. Page 3

instruction 

### as to their responsibilities in operating the equipment according to all ofthe relevant conditions listed below. 5. The approved installations shall consist ofthe following equipment: A. Building 222 One hush house with two aircraft bays AQUIS# 3647 AQUIS# 34680 B. Building 268 Three test cells #8 AQUIS# 3654 #11 AQUIS# 3652 #12 AQUIS# 3644 C. Area 5134 Sound Suppressor model #AlF 32A-25 AQUIS# 3648 

### D. Pad 24 Hush house model #AlF37T10 Near building 8 AQUIS not assigned E. Pad 18 Two hush houses model #AlF37T1O Pad 27 AQUIS# 34346 Near building 8 AQUIS# 34399 F. Pad 17 Hush house model #AlF37T10 Near building 8 AQUIS# 3645 

# -. G. Area 10901 Mobile test stand model AM37T-21A AQUIS# 3002 H. Area 10901 Mobile test stand I. Near building 33 Engine test cell #AlM37T-9 6. This AO shall replace the AO dated November 27, 1987, (BAQE-068-87). 7. The Executive Secretary shall be notified in writing upon stan-up of the two new facilities near building 901. 

### as an initial compliance inspection is required. Eighteen months from the date ofthis AO the Executive Secretary shall be notified in writing of the status ofconstruction/installation ifconstruction/installation is not completed. Atthat time the Executive Secretary shall require documentation of the continuous installation ofthe operatIon and may revoke the AO in accordance with R307-1-3.1.5, UAC. 

### Limitations and Tests Procedures 8. Visible emissions from any point or fugitive emISSIOn source associated with the installation or control facilities shall not exceed 20

### % opacity. Opacity observations of emissions from stationary sources shall be conducted in accordance with 40 CFR 60, AppendixA. Method9. Visible emissions from intermittent sources shall useprocedures similar to Method 9. but the requirement for observations to be made at IS-second intervals over a six-minute period shall not apply. Any time interval with no visible emissions (Le. there are no emissions) shall not be included. 4.2.4-160

### OAQE-775-95 Page 4

9. The following limits shall not be exceeded without prior approval in accordance with R307-1-3.1, UAC: A. 1,400 F-16 (Engines F-l00/110/120/200/220) engine tests per 12-month period B. 110 F-4 (Engine J-79) engine tests per 12-month period C. 200 F-18 engine tests per 12-month period O. 300 C-130 (Engine T-56) engine tests per 12-month period The total number oftests from all ofthe cells. hush houses. and test stands on the base combined shall not exceed the above specified limits by aircraft engine category. Tests conducted in the test stands outside building 222 shall not be considered pan ofthe total F-16 test limitation above because these are grandfathered test stands. However. their emissions shall be included in the emissions inventory repon for the facility. Records ofthe number oftests by the aircraft/engine category shall be kept on a daily basis for all tests conducted. For eachtest. the type ofengine, date and time oftest. and duration of each test in different test modes (idle, intermed, military. afterburner) shall be recorded. Compliance with the annual limitations shall be determined on a rolling 12­ month total. Hill Air Force Base shall calculate a new 12-month total based on the first day ofeach month using data from the previous 12 months. Records oftests conducted. including rolling 12-month totals shall be made available to the Executive Secretary or his 

### representative upon request, and shall include a period oftwo years ending with the date ofthe request.

10. The owner/operator shall use only JP-4.1P-5 orIP-8 as fuels inthe engines. Ifany other fuels are to be used. an AO shall be required in accordance with R307-1-3.1. UAC. 11. The sulfur content ofany fuel burned shall not exceed 0.85 pounds permillion BTU heat input. Sulfur content shall be decided by ASTM Method 0-4239-89, or approved equivalent. The sulfur content shall be tested ifdirected by the Executive Secretary. Federal Limitations and Requirements 

### 12. This 

### source is required to pay an annual emission fee upon stan-up [or if an existing facility, upon issuance ofthis AO]. The fee will be based oncalculated annual 

### emissions listed at the end of this AO. This 

### fee is valid until inventory data for one year are available for the source. The owner or operator ofthis 

### source will be billed upon stanup for all emissions that are considered "chargeable" as ofthat date. Records & Miscellaneous 

### 13. All records referred to in this 

### AO which are required to be kept by the owner/operator, shall be made available to the Executive Secretary or his representative upon request. Records that 

### are to be kept include number of engine tests by category (Condition number 9) 4.2.4-161DAQE-775-95 Page 5

14. All installations and facilities authorized by this AO shall be adequately and properly maintained. All pollution control vendor reconunended equipment shall be installed. maintained. and operated. A copy of all manufacturers' operating instruction for pollutioncontrol equipment andpollutionemining equipment shallbekept onsite. These instructions shall be available to all employees who operate the equipment. and shall be made available to compliance inspectors upon their request. 15. The owner/operator shall comply with R307-1-3.5. UAC. This rule addresses emission inventory reponing requirements. 16. The owner/operator shall comply with R307-1-4.7, UAC. TIlis rule addresses unavoidable breakdown reponing requirements. The owner/operator shall calculate/estimate the excess emissions whenever a breakdown occurs. The total of excess emissions shall be reponed to the Executive Secretary as directed for each calendar year. Any future modifications to the equipment approved by this order must also be approved in accordance with R307-1-3.1.1, UAC. This AO in no way releases the owner or operator from any liability for compliance with all other applicable federal. state. and local regulations including the UACR. Annual emissions for this source (all aircraftenginetest facilities) are currently calculatedatthe following· values: Pollutant Tons/yr A. Paniculate.

. . . . . . . . . .. . 3.32 B. PM,o 3.32 

### C. S02' 

### 8.87 D. NO •••••.•••••••.•••••••••• 73.39 z E. CO 42.22 F. Hydrocarbons (as VOC) 4.24 These calculations are for the purposes of determining the applicability of Prevention of Significant Deterioration and Nonattainment area major source requirements ofthe UACR. They are not to be used for purposes of detennining compliance. In accordance with therequirements ofTitle V ofthe 1990 Clean Air Act. the following pollutants may be subject to an operating permit fee. Both the fee rate and the class ofpollutants are subject to change by state, the federal agencies, or both. 

# -

-
4.2.4-162

### DAQE-i75-95 Page 6

Pollutant Tons/vr A. PM\o 3.0 B. SOx' 9.0 C. NOx ' .•••••••••••••••••••••• 73.0 D. VOC 4.0 

### Approved 

### BY:7 

### _j' 

# L



# ..**·/!ll/~** RusseIVA. 

### RQt>errs. ExecutIve SecretarV Utah AIr Quality 

### Board

.

4.2.4-163

# RECEIVED DEPARTMENT OF THE AIR FORCE 

## JAN 0 6 1995 HEADQUARTERS OGDEN AIR LOGISTICS CENTER (AFMC\ HILL AIR FORCE BASE. UTAH

# ,.~ AirQua/'-' 4

## Jan 95

OO-ALC/EME 7274 WardleighRoad HillAFB UT 84056-5137

Mr. RussellA. Roberts 150 North 1950 West P.O. Box 144820 SaltLake CityUtah 84114-4820

DearMr. Roberts The attachedApproval Order#BAQE-642-88 for a spraybooth and an oil/waterseparatorneedstobeeliminated. The spraybooth is presentlycovered in

### the Consolidated Paint Booth Pennit (DAQE-I006-94, 29 Nov94) and the oil/waterseparatordoes notrequire an airpennit. 

### Ifyouhave questions, please contact Ms. Bormie Miller at 777-1449. Thank youfor your cooperation in

### this matter. Sincerely

# ~-lflJ! flYNN S. HILL Chief, EnvironmentalComplianceDiv Environmental :Many.gementDirectorate

Attachment: 1. 

### AOBAQE-642-88

cc: 

### 388FW/LSWE MSgtPrymek

4.2.4-164To: Russell Robens, Director, Division of Air Quality 

### Through: Lynn Menlove, Manager, New Source Review Section, Division of Air Quality 

### From: Dwight Bird, Environmental Engineer

## D~) 

# J)6

Date: August 17, 1995 Subject: Modification for Hill AFB aircraft engine test stand Approval Order (DAQE-0469-95) 

### File Path: f:\aq\engineer\dbird\wo\memos\hillairc.mem Description Hill AFB submitted a request dated October 14, 1994. to modify language in their Aircraft Engine Test Facility consolidated Approval Order. The changes in language are necessary to clarify the location ofthe test stands, and to add JP-5 to the list ofacceptable fuels. JP-5 is similar in formulation to JP-8, but with a higher flash point. This fuel is required by Navy aircraft that will land on aircraft carries, as a safety precaution. Emissions There will be no change in emissions from this modification, because emissions are restricted by the type and number oftests allowed.

There was no BACT determination for this modification RecornrnendatioD The attached approval order should be sent (it contains

## iecllirie and strikeoUl text identifying language changes in conditions 5, and 10).

There is no fee required for this modification



### 4.2.4-165DEPARTMENT OF ENVIRONMENTAL QUAilTY DMSION OF AIR QUAlITY Michael O. Leavia o-r-­ Dianne R. Nielson. Ph.D.**~~** Russell A. Roberts [);",czor 150 North 1950 West P.O. Box 144820 Salt Lake City, Utah 841144820 (801) 536-4000 (801) 536-4099 Fax (801) 538-4414 T.D.D

DAQE-X1QC-95

Mike Graziano Hill Air Force Base OO-ALCIEM 7274 Wardleigh Road Hill Air Force Base, Utah 84056-5137 Re:**M@~fiedApproval** Order To Consolidate Permit For All Aircraft Engine Tests Davis County CDS Al NA Title V Major Dear Mr. Graziano: The attached document is an Approval Order for the above referenced project. Future correspondence on this Approval Order should include the engineer's name as well as the DAQE number as shown on the upper righthand comer ofthis letter. Please direct any technical questions you may have on this project to Mr. Dwight Bird. He may be reached at (801) 536-4048. Sincerely,

Russell A. Roberts, Executive Secretary Utah Air Quality Board RAR:DB:dn

cc: Davis County Health Department EPA Region VIII, Mike Owens

4.2.4-166June - ::"5:: 4 Page 6

### c. NOx •• , .••••••••••.•••••••••••• 73.0 D. VOC 4.0 Approved By:

Russell A. Roberts, Executive Secretary Utah Air Quality Board



### 4.2.4-167**~AQE** ISS**~t!** JURe :994­ Page 2 

### Abstract HillAirForce Base has requesteda 'IIIiiilifii.iJiU,:n'-tQiliecons01idoJedApproval Order fOT all

### ofits aircraft engine testfaciliJies

..

### Tlit4PiiiiJ.#ii/,·f!Jij/Jtri.i:f'i!ryTlzele rPiHbe eighttest facilities (either hush houses or teststands), one of which is

### graruifathered, and

### two of which are replacementsfor graruifatheredstands. This

### Approval Order will

### supersedeD4f!.E+!6!#94

### BAQE-068()-87,**datedJiifi~qiJJ~4** 

### Nopembel 27, 1987. 

### T/ii$i1JiidfJi#iiiiii#iififfis!helofiiliiiii.iifitliiieititliiidSiilid1iiisb:hiiiiiiiiliiiiliiJlii#sifiirt1ieUiiit]J1'c:'S**.mrf{el~Whk##iiijiiif.iitlifijtNiiVj4iii:i"aft·** The above-referencedprojecthas been evaluated and found to be consistent with the requirements ofthe Utah Air Conservation Rules (UACR) and the Utah Air Conservation Act. A 30-day public comment period was held and all comments received were evaluated. The conditions of this Approval Order (AO) reflect any changes to the proposed conditions which resulted from the evaluation ofthe comments received. TIlls air quality AD authorizes the project with the following conditions. and failure to comply with any of the conditions may constinlte a violation ofthis order. General Conditions' 1. This AD applies to the following company: Hill Air Force Base DD-ALCfEM 7274 Wardleigh Road Hill Air Force Base, Utah 84056-5137 Phone: (801)-777-()359 FAX: (801)-777.4306 The equipment listed below in this AD shall be operated atthe following location: PI ANT I OCATION' See condition 

### #5 for location ofbuildings. Universal Transverse Mercator (UTM) Coordinate System: (4,525,000) meters Northing, (425,000) meters &sting 2. Definitions ofterms, abbreviations. and references used in this AD conform to those used in the UACR, Utah Administrative Codes (UAC), and Series 40 of the Code of Federal Regulations (40 CFR). These definitions take precedence unless specifically defined otherwise herein. 3. Hill Air ForceBase shall install and operate the Aircraft Engine Test Facilities according to 

### tm:$;:'A,ppic:>v;UrQRii:i dIe information submitted**ie~teWin** the Notices of Intent dated**~t~#jJ4;4~;** January 7, 1994, January 20, 1993, and April 15, 1987. 4. Acopy ofthis 

### AD shall be posted on site. The 

### AD shall be available to the employees who operate the airemission producing equipment. These employees shall receive instruction as 4.2.4-168**r;~QE** '41::9 94 

### .:u,me 9, ::.**9~** Page 3
to their responsibilities in operating the equipment according to all ofthe relevant conditions listed below.

. 5. The approved installations shall consist ofthe following equipment: 

### AS Btlil(firig;n:2**()jj¢·lj#.SbhOUSe¥iUlt#9jiJ:~J:aft~Ys AQP.'fSl~7** **~QVJ~~** Bj 

### BUl1dtng;Z6B**1'bt~~~::¢ells** 

## #8**t\~S#$~4** 

## In**AQUlS~t3652**



## ....J2**;\QUlS#:~6.44** 

### Ci**~5134 ~Supp'~()1'.~lttAlf32A:'25**  

### 4Q'QIS#%4a**D~** 

### Pid24 

## H'ilSlihOijSemooeI4IAfa7TIO**N~'bilildirig~ A.QJJ1:$ilt:#'~~**  K 

## elcfl8**TW6b~~es:lDiXiet#.AtE37TI0** Pid27**t\QPlS#3':t~ N:~:biliIdlrig:a**  

### AQP.I.S#:'$Ja99 F)**~(fJ7 I1~Jijiijse)@jiel#.:t\n.?'7T:l** **{) N~:bUildirigS**  

## AQU!S#i364S OJ**~4OQOl. ~9l)ij~:~#·~.ffiOli&1.AM37'T~71.A** **.t\QmS#i~** 

### Ht**~:JP901 ~j1#:~~~~:Illi**  

## U**N~:l)\h1<u.ng$3 .e#jiP~Jestc~U:~41M37T+9**  A. Btilidillg 589 wilh hush house B. Building 222 with hush house model #A/F37T-1O 

## c. Building 268 widl one model #AlF32T-9 llOise supplession system D. Test facilities #1 and 

### #2 in building 8 using moclel#A/F37T-1O basil house E. Btilidillg 222 F-16 sowld supplessOi (glandfalheled) F. Two new Illudel AM37T-21A mobile lest slands to be anchOied near btiliding 901 6. This AO shall replace the AO·dated November 27, 1987, (BAQE-Q68-87). 7. The Executive Secretary shall be notified in writing upon start-up ofthe two new facilities near building901, as aninitial compliance inspection is required. Eighteen months from the date of this AO the Executive Secretary shall be notified in writing of the stams of construction/installation if construction/installation is not completed. At that time the Executive Secretary shall require documentationofthe continuous installation ofthe operation and 

### may revoke the AO in accordance with R307-1-3.1.5, UAC. I,imitations and Tests Procedures 8. VISible emissions from any point or fugitive emission source associated with the installation or control facilities shall not exceed 20% opacity. Opacity observations ofemissions from stationary sources shall be conducted in accordance with 40 CFR 60, Appendix A, Method 9. VISible emissions from intermittent sources shall use procedures similar to Method 9, but



### 4.2.4-169u.=t.QE ,1 G5 5

.. J-\:ine : 

### ::-::r-4 ?age 4 the requirementfor observations to be made at IS-second intervals over a six-minute period shall notapply. Any time interval with no visible emissions (i.e. there are no emissions) shall not be included. 9. The following limits shall not be exceeded withoutprior approval in accordance with R307-1­ 3.1, UAC: A. 1,400 F-16 (Engines F-looIl101l20/2oo/220) engine tests per 12-month period B. 110 F-4 (Engine J-79) engine tests per 12-month period C. 200 F-18 engine tests per 12-month period D. 300 C-130 (Engine T-56) engine tests per 12-month period The total number of tests from all of the cells, hush houses, and test stands on the base combined shall not exceed the above specified limits by aircraft engine category. Tests conducted inthe test stands outside building 222 shall not be considered panofthe total F-16 testlimitation above because these are grandfathered test stands. However, their emissions shall be included in the emissions inventory report for the facility. Records ofthe number oftests by the aircraft/engine category shall be kept on a daily basis for all tests conducted. Foreach test, the type ofengine, date and time of test, and duration ofeach test in different test modes (idle, intermed, military, afterburner) shall be recorded. Compliance with the annual limitations shall be determined on a rolling 12-month total. Hill Air Force Base shall calculate a new 12-month total based on the first day of each month using data from the previous 12 months. Records oftests conducted, including rolling 12-month totals shall be made available to the Executive Secretary or his representative upon request, and shall include a period oftwo years ending with the date ofthe request.



### 10. The owner/operator shall use only JP-4iJP4S or JP-8 as fuels in the engines. Ifany other fuels are to be used, an AO shall be required in accordance with R307-1-3.1, UAC. 11. The sulfur content of any fuel burned shall not exceed 0.85 pounds per million BTU heat· inpUt. Sulfur content shall be decided by ASTM Method D-4239-89, or approved equivalent. The sulfur content shall be tested ifdirected by the Executive Secretary. Federal Ijmitations and Requirements 12. This source is required to pay an annual emission fee upon stan-up [or ifan existing facility, uponissuance ofthis AO]. The fee will be based on calculated annual emissions listed at the end of this AO. This fee is valid until inventory data for one year are available for the source. The owner or operator of this source will be billed upon stan-up for all emissions that are considered "chargeable" as ofthat date. Records & Miscellaneous 13. All records referred to inthis AO which are required to be kept by the owner/operator, shall be made available to the Executive Secretary orhis representative upon request. Records that

4.2.4-1702J:iQi 189 :: JIolRe 1.994 Page 5

are to be kept include number ofengine tests by category (Condition number 9) 14. All installations and facilities authorized by this AO shall be adequately and properly maintained. All pollution control vendor recommended equipment shall be installed. maintained. and operated. A copy ofall manufacturers' operating instruction for pollution control equipment and pollution emitting equipment shall be kept on site. These instructions shall be available to all employees who operate the equipment. and shall be made available to compliance inspectors upon their request. 15. The owner/operator shall comply with R307-1-3.5, UAC. This rule addresses emission inventory reporting requirements. 16. The owner/operator shall comply with R307-1-4.7, UAC. This rule addresses unavoidable breakdown reporting requirements. The owner/operator shall calculate/estimate the excess emissions whenever a breakdown occurs. The total ofexcess emissions shall be reported to the Executive Secretary as directed for each calendar year. Any future modifications to the equipment approved by this order must also be approved in accordance with R307-1-3. 1. 1, UAC. 1bis AO inno way releases the owner or operator from any liability for compliance with all other applicable federal, state, and local regulations including the UACR. Annual emissions for this source (all aircraft engine test facilities) are currently calculated at the following values: Pollntant Tons/yr A. Particulate 3.32 B. PM\o 3.32 C. S02 

### 8.87 D. NOx ••••••••••••••••••••••.•••• 73.39 E. CO 42.22 F. Hydrocarbons (as 

## voq 4.24 These calculations are for the purposes of determining the applicability of prevention of significant deterioration and nonattainment area major source requirements ofthe UACR. They are not to be used for purposes ofdetermining compliance. In accordance with the requirements ofTitle V ofthe 1990 Clean Air Act, the following pollutants may be subjectto anoperating permitfee. Both the fee rate and the class ofpollutants are subject to change by state, the federal agencies, or both. pollutant TODs/yr A. PMIO •.••••••••••••••••••••••••• 3.0 B. SOx' 9.0

4.2.4-171

# RECErvED DEPARTMENT OF THE AIR FORCE HEADQUARTERS OGDEN AIR LOGISTICS CENTER (AFMC) 

## OCT 18 100" HILLAIR FORCE BASE. UTAH 

# Air Quallt

14 Oct. 94

DO-ALOEME 

### 7274 Wardleil!h Road Hill AFB lJT84056-5137 Mr. Dwight V. Bird State ofUtah Division ofAirQuality P.O. Box 144820 SaltLake City Ut 84114-4820

Re: Approval OrderDAQE-469-94

Dear Mr. Bird



# -

Afterreviewing Approval Order#DAQE-469-94, please modify General Conditions, Paragraph 5, to read as follows: Condition 5. Approved Installations A. 

### Building 222 One hush house with two aircraftbays AQUIS# 3647 AQUIS# 34680 B. Building 268 Three engine testcells #8 AQUIS# 3654 #11 AQUIS# 3652 #12 AQUIS# 3644 C. Area 5134 Sound suppressormodel AIF 32A-25 AQUIS#3648 D. Pad 24 Hush house model #AJF37TlO Nearbuilding 8 AQUIS not assigned E. Pad 18 Two hush houses model #AIF37T10 Pad 27 AQUIS# 34346 Nearbuilding 8 AQUIS# 34399 

## F. Pad 17 Hush house model#AJF37TlO Nearbuilding 8 AQUIS# 3645 4.2.4-172

### G . Area 10901 Mobile test stand model AM37T-2lA AQUIS# 3002 

### H. Area 10901 Mobile test stand (planned) I. Nearbuilding 33 Engine test cell#AIM37T-9 (under construction) As the emissions are calculated with the engine type and the number oftests only, the emissions do not depend onthe number oftest facilities. Therefore, there is no increase of emissions. Notification will be given to you concerning the planned facilities stanup date.

Also please change Condition 10. Fuels. As Hill AFB maintains Navy aircraft too, we request JP-5 to be included as a permitted fuel. JP-5 is essentially the same fuel as JP-8.but it has a higher flashpoint to meet shipside requirements. Emissions from the Aircraft Test Cells using JP-5 will be the same as using JP-8.

Ifyou have any questions. please call Mr. Andreas Zekom at 777-0359. Sincerely 

# 81.

# ~dJ**/~~S.Hn..L** Chief, Environmental Compliance Div. Environmental Management Directorate

4.2.4-173