## 1100

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THE 

### F: TOE ERG I
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### 40 '
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### i' 

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### ment in lhi. matt rat lhi 

### 'th all lhi. Final

, n:ent 

### gr em nL 

### ciTe tiv immediat I upon re' 

### ipt

'r In 

### nt and 

### Final ,. r. 

### Thi' c)urt 

### ill ace pl 

### tb I tronic lllin' 

### rlh time, how verthe Parli s**r~** 

### to 

### file lh origin I ' nsent '1' t:01 

### nl ithin se en 

### cia s {f**i~** 

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ilb all 

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### -I: up n 

### rc:; ciptb

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..'**_~~_Da of~~~~....1do.4-.!..**  

### __A-_' 

### 2011

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## UG 6 E.

Tlf
""

...·.,..T .AGFtEErvtEl'i ) ) ) ) Docket o.**~=.....:;.;;---.;;;=~::;.:..,;=**

R'sp nd 'Ill. In the Mu

THORITY The United 'rates En

TOR B. CK 

## no . U On June 19, 197
. EP promulgated the Pn::veotion of il:,rnificanrDeterioration (P U) regulations pur.uant to ubrltlt: I, Part C afth ct. 43 Fed. Reg. 403. EPA revised thl.: P. D regulations on

_ veral 0**jon~** including ugust • 1980 (45 Fed. Reg. 52676) and December I. _0 

### 2 (67 ed. R J,



## o 86) 

## nit:
. t I i ns odi 1 d 140 .F.R. Part -2.

t sb I'll cmig 'ion sues t whi h rhi 'A!:,'Tce 'l rdln are in "Indian ouuU)" dcfin d at 18 U. , '. §11 1 The loctui OS ofth cOli sion soure s (' idt.:o Hi d in Appendix A.

In a "st ion •**~o** "', W1)' build' Ig, s [tJ.r'C, 'ility rin all tj rc ula ed PSD pollutant. 6. 0 C.F.R
..' 5_.21 (b)(l)(i) b) defines a "maJor 5L tionary source" as arDon r olher thing any station 

### urc that emit •or hus th<: 

## r tential 

### to emit 250 tons peryear or morc n rcgul t 

### dPDp lIutant. nd Modifications In 

### n .effective, thl,.' rules allow, 

### among other things. fora synthetic minorsource pennit to be 

### issued to an olhcl'\loi:sc mnjor source that has laken a reslriction. enforceable a.s 

### a legal and practical maUer, so thatthe 

### ::ourcc:'t' potential 

### to cmit is 

### less than the amounts for major source!>. 

### S. This procceJing

### is governed b)' the Consolidated 

### Rules ofPractice 

### Governing the Administroll've Assc:ssmem ofCivil PcnaltiCll, and 

### the Revocation, Termination or Suspension ofPermil'i (Consolidated Rules) sct forth at 40 C.F.R. Part 22. The U.S. l1epartment ofJustice has concurred with EPA Region 

### 8's IcqUC:ll 

### fornUlhori7..ation to commence aD 

### I1dministrutive enforcement 

### aeUon in this matter. 

### 9. 'Ibis ,\grcclllcm 

### IS voluntarily cntered into by the 

### EPA and the Respondent 

### ror the purpose of sirnullaneously 

### commencing and 

### concludin this maner. as authoriz(..'(j by 40 C.F.R
.. 22.IJ(b). IJnd executedpursuant 

### to 40 C.F.R. § 22.18{b)(2) and (3) ofthe Consolidated Rules, 

### B. INTROIlUcrORY PROVISIONS This Agrt.:t:mcnt addresses a unique**~;tuntion** 

### in that the Respondent is unable to obwin an effective synthetic 

### minorSO\lrcc pcmlit 

### from EPA prior 10 

### conuncndnM construction Ix-c<iuse. pursuant 

### 10 tht:**nc\~** Tribal MinorNSR Rule, the 

### !lument)' to issue such 

### permits begins August 30, 2011, 2. This Agrccmt.:nl is entered into b)' EPA and Respondent 10 settle alleged violations and allow Rcspondcuu,to comply as expeditiousl)' aspossible with the 

### requirements oflhe CAA, specifically P D. ofcertain Bakken Fommtion Oil and Gas Emission Sources (emission sources) o\lo'ncd andloropcmted by Respondcnt, located within Ihe 

### exterior boundllries ofthe Fort Berthold 

### Indian Reservation in North Dtikota as described 

### in Appendix A. 3. Respondent admits thejurisdictional allegations 

### in this Agreement butdocs not admit the 

### SJX-"CiRc f3ctual D,l1cgutio:1s orlegal conclusions 

### made bythe Complainant herein, 4. Respondent 

### waives its rights to ahearing before any tribunal 

### artd to COntestany issue 

### oflawor 

### fact**~ct** 

### rOM in this Agreement S. Complainant asserts that settlement ofthis matter is in the public interest, Complainant and Respondent agree thnl resolving this mutter without funher 

### IiIigation and \\ithout adjudication ofany issue; offilet or Is\\' is appropriate, 6. Ibis**Agrc~l1lel1l.** which includes Appendices Aand D, upon incorporation into a final Order.npplics to ;tnd is binding upon EPA and upon Rcspondent.llJ1d Respondent's officers, directon;, employees. agt.'T1ts,**~uccc,ssors** and assigns, 7, This Agreemcnt contains all terms 

### ofthe scttkment agreed to bythe EPA and 

### RC9pondcnt.



### 2C. ALLEGED VIOLATIONS 1, Respondent is a Delaware corporation and lhcrerore 3 "pcrson'- ns defined in section 302(c) oflhc CAA. 42 1.:.5.C. § 7602(e). 2. 

### Respondent owns sndloroperates the emission sources described in Appendix A. 3. Complainant alleges that Respondent 

### viol.ncd the CAA 

### by constructing each ofthe major stationary 

### sources identified In Appe:ndi.'( A, Tuble A-I without first obtaining aPSD permit pursuant [0 

### 40 C.F.R. § 

### 52.21. D. REQUIREMENTS VI DER THIS AGREEMENT 

### The EPA and Respondent, 

### by theirundersigned representatives, h.::reby consentand agree as**lollow~:** 1. Pcnnining

a. Within one )'car ofthe effcclivc dale 

### oflhis**A~rccmcnt,** for:tll Existing Emission Sources listed 

### ill Appendix A. Table A-I,**Respond~nl** shall submit to EPA a complete synthetic minor source 

### pcrmil application under EPA's Tribull\'linor NSR Rule. IfRespondentdetcnnincs thal 

### an**~mission** 

### :SOurce was 

### incorrectly induded 10 

### Appendix A, Tobie A·l, 

### it may 

### noliI)' EPA of

### thai fact by 

### October 14,2011. 

### In this circumstance. Paragraph F 13 below shall 

### apply. 

### b. By October 

### 1. ::;0II, Respondent shall suomit to 

### EPA acomplete syntheticminor sourcepennil**ll.pplk~ulol\** 

### for New Emission Sources listed in Appendix A, Table

### A-2 that will commence,' constructiull during lhc period starting August 31, 20II, and ending December 31, 20II. 

### c. By Novembc:r I. 2011. 

### RespondeDt shall 

### submit to EPA a complete synthetic 

### minor source pcmut application forNew Emission Sources listed in Appendix A. Table A-3 thai will commence 

### con:;truction during the period starting Januaf)' 1,2012, and ending Murch 31, 2012. d. By January 

### I. 2012, 

### Respondcnt shall submilto EPA a 

### complete synthetic minor source permit applicnliun for Nt:w Emission Sources listed in Appendix A, Table A-4 thai wiJI 

### commence construction during the period starting April!, 2012, and ending June 30, 2012. e. An)'**cml~siotl** 

### sources for which construction 

### \\;\1 commence afterJune 30, 2012, are nol subject to litis Agreemellt 

### and Respondent 

### mustobtain an effective synthetic 

### minor sourcepennit from EPA or IAlmpl)' with lhe provisions of40 C.F.R. § 

### 52
..21 prior to commencing construction. i. Inclusion

# ornn emission source listed in Appendix A, Table A-2, 1\-3 

### or A-4 does not preclude Respondenl 

### from commencing**con~trucLion** 

### oflhat emission 

### source af!cr the dme specified in Ihe rclcvam Parogmph D.I.b,c, and d above However. all such emission sources must commence construction prior 10 JOOt: 

### 30, 2012. 

### g. tfthoseemission sources listed In 

### Appcndb: A. Tables A·2. A·3. andlorA·4 

### do oot commence constmctian 

### by JUlie JO, 2012, Ihen they arc the-refore nol subjecilo cction 

### o ofthis Agreement.2, Controt Requirements

a Forall E:dsting Emission Sources listed in Appc:ndix A, Table A-I. the Respondent shall campi) 

### with the requirements ofAppcndi.x Bb)' no Itltt:rlhun December I, 2011. b. Forall New Emission Sources listed in Appendix A, Tublcs A-2, A-3, and A-4 the Respondent 

### sh:lIl comply with 

### the requirements 

### ofAppendix 

### Bupon Start-up ofproduction. Emission sources thm receive an effective synthetic minor source permit before commencing construction 1IJ'(.' not subjecllo tbe requircm"nts ofIhis Agreement. ,; NOlili(,;atio/l**Rcspond~m** 

### sball nOlif)' the 61>,'\ on the last business 

### da.yofeach month ofall oflbe emission sources subject to this Agreement that commence construction ;n the previous month, Respondent shall also notifY the EPA whetherthose emission sources arc meeting the control requirements as required by 

### Appendix B and whether

### they have received an 

### eftcctive synthetic 

### minorsource pennit. TIlis notice shall also include Ii lisl ofemissions sources that art removing a 98% control device and using a 9QO/g 

### control device a..; outlined in Appt:'ndlx B.**UnJ<::~** othen.
...ise speciHed 

### herein. whenever RC!pOndenl's notification. submissions, or communicalion ItT¢.required 

### by 

### Ihis Agreement. they shall 

### be made electronically ormailed 

### to the 

### following: Cynthlil. 

### J. Reynolds, Director U.S. EPA Rogion 8(8ENF-AT) Air &. Taxics Technical Enfon:eml..-r1t Progrum 

### 1595 Wynkoop St. Denver, 

### CO 

### 80:W8·! 129 reVllold.o;,C\oilthiU@l:pa.lwv 1:. CIVLL PENALTY I, Pursuanl to un :malysis ofthe facts and Cin.::Ulllstallccs ofthis case with the stututory faclors described 

### in ""inn 113(d)(1 )(BJ 01tho eAA, 43 U.S.C. §7413(dXlXB), EPA has dotmninod lhal an appropriate civil penaJtyto settle 

### this action is the amoum 

### of$3,Ooo 

### peremission source listed in Appendix A fora lotalofS63.000. 2. Respondent**eo~nts** to Ute i,suancc 

### oia Final Orderand consents forthe purpose ofscnlemcnI 10 the paymcnl ufthe civil penalty in the mannerdescribed below in this paragraph:


### n. Payment is due v.ithin 90 calendardays from the date oftha Final Order. to 

### be 

### issued by the E1>A's 

### Region:!l Judicial Officer, thai adopis lhis Administrative Complaint rmd Consent Acrccfllcnt. If

### the due 

### dmt falls On a weekcnd or legal f/":dc:rnl holid:I)'. tht.ll the due date 

### 4becomes the nexl business day. The date the payment is mi'ldl: is consldt;.'red 10 be: the date processedby the Bankdescribed below. Payments received by 11 :00 AM arc processed on the 

### neXl business day. b. The payment stl:lll made by remitting. ucushier's or 

### certified chc.:c:k. including 

### the name and docket nwnbcr ofthis case, for the cnlc:ulated arnoWll, payable to "Treasurer, United States of America..
.. 10: 

### CHECK PAYMENT: US Environmcnilll Protl,,'Clion Agency Fines :md Penalties 

### Cincinnati Finance CCllh:r 

### PO Box 979077 ',. Louis, MO 63 

### 197·9000 

### OVERNIGI

## rrMAlL U.S. Bank 

### 1005 Convenlion 

### PIai''''o Mail 

### Station SL·MO-C2GL 

### St. Louis, MO 63 101 Cont.'\Ct: Natalie Pearson 

### 314-418·4087 

### WIRETRANSFER:**Wir~** Transfers should 

### be directed 10 the Federal Reserve BankofNew York 

### Fcdcrnl Reserve

### Dank of New York 

### ABA =021030004 Account· 

### 68010727

WlFT address

- FRNYCS33 

### 33 Liberty 

### Street New York. NY 10045 Field Tag 4200 oftbe Fedwire message should rcad AD 6801 

### n1 En\'lTOnmental Protectiun Ascncy ACH (also known ll.'t REX or remittance express): Automated Clcaringhou!K (ACH) for receiving US currency 

### PNC' Bank 

### 808 17" Street. NIV Wushingtun. DC 

### 20074 Contact 

### BJesse While 

### 301-887-6548 ABA::z 051036706, Tmn:;action Code 22- checking Environmental Protection Agency. Account 310006, CTX Formal 

### 5ON4LINE PA¥MENT:**Th~rc** is now :m On Line PaymentOption. Ilvailable through the- Dept. of**Tr~a~mry** This**pa)'m~nt** option can be accessed from the inlonnation below:

....'ww.pay.go
... E.nter sfo 1.1 in the search field. Open form and complete required fields. A copy ofthe check. or\"irc tnmsfer, shall be sent simultaneously to: 

### Alexi:: }lonh 

### (SENF-A

# n U.S. EPA Region 

### 8 Technical EnforcemcOI Program 1595 Wynkoop St. Ocnver. CO 80202·1129 and Tin<l Artemis Regional Hearing Clerk (8RC) U.S EPA Region 8 1595 W)Tlkoop 81. Denver. CO 80202-1129
c. Paymcm ofthe penalty in this mannerdoes not relieve Respondent ofirs obligation to comply with the requirements orlhc CAA and 

### its regulatiuns. 

### f. GENERAL PROVISIONS 1. The emissions controls rcquircd in Appendix Bunder this Agreement shall Ix: considered "fcderJlly enforceable" :ind, us applicabk, "Iegally and prdcticably enforceable" for purposes ofcalculnting the potential to cmit for the emission sources covered under this Agreement. 2. Failure by Respondent to timely apply for, and ultim\ltcl)' obtain. the s)·nthctic minorpermit for LU1Y emission source identified in this Agreement or to comply

## "'1m the ret.juircmcnts ofSection Dand Appendix B shall render any relcase Or satisfaction ofliability affordL.'d under this Agrecmentnull and void a<; to that source. 3. Nothing in this Agreemclll shall 

### be construed as a waiverby

## me EPA orany olher federal entity ofils l1uthority to seck costs orany appropriate penalty associated \.\lith any collection action instituted as a result ofRespondcm's l':lilure 10perform pursuwlt to the terms of!.his Agreement. Once lhc RespondcDt has received oJ synthetic minor**soure~** permit ItomEPA for the emission source identified in Appendix /\, and that permit has become effective, the terms ofthat permit supersede this Agreement. 5. Forall Existing Emission Sources listed in Appendix A. Table A·t. Respondcnt's submission ofa complctc symhetic minor soun:c permil application will constiture compliance wiLit the relevant

## eM provisions during the period oj'this Agrct!ncnt.



### 66 

### for

# wi New Emission Sources listed in Appendix A.**Tabl~s** A-2, A-3, and A4, cumpliance with lhe n:levant 

### CAAprovisions requires thai Respondent; a)obtains an effective synthetic minorsource permit; b) 

### is subject to an EPA 

### llpprcwed Fcdcrallrnplcmcnul.Iion Plan which allows for II pennjt byrule; orc) complies with a new EPA applicnble CAA regulation that removes lhem from PSD applicability 7. NOlwlthstanding the terms ofws Agreement. the Respondent mu::.1 meet any other :spplicablc t'\."quircments ofth" Act orits implementing regulations. 

### 8. Respondl::lt agn:es 

### that for any emjssion 

### source operated without 

### the conuol.s required by thIs Agreement, exccpl for instances ofmalfunction, Respondent is in violation ofthis Agn:tmenl. 

### Malfunction shaH 

### be defined as any 

### sudden, infrequent, 

### and not 

### reasonably preventable failure 

### ofair pollution 

### conuol equipment, 

### process equipment, ora

### process 10 operate in a nannul or usual manner, caused by circumst;mces Cll 'rely beyond the control ofthe O\,,.ilc:roroperator. but shalInot include fn.ilures that are caused 10 whole orin part by poor maintenance orcareless operation. 9. RClipondent agrees that any emission source whose actual emissions have**exec~dt:d** 250 tons pl'Tyeur is 

### not covered by this Agreement, including any emission source listed by the 

### Respondent in 

### Appendix A. 

### 10. Each undersigned reprcscnUltive oftbc EPA 

### antI Respondents (panics) to 

### lhis Agreement ccnifics thut he or she is fully 

### 3uthorized by 

### the Part)' represented to 

### bind the Party 10 

### the terms 

### and condilions ofthis Agreement and to execute and legally 

### bind that Party to this Agreement. 

### 11 111e Parties 

### agrce to submit

### this Agreement 

### to the Regional Judicial 

### OtTicer, 

### with 9request thaI 

### it 

### be incorporntcd into a 

### Final Order. 12.111('tenns. conditions, and compliance 

### requirements orthis 

### Agreement may not 

### be modilicd oran1endcd 

### cxct.-pt upon lhe
....Titlcn agreementorooth partie.
... and approvnl ofa Regional Judicial Officer. 

### 13. lfthl." Respondent. pursuanl 

### to Paragraph D.

### I.a. abovc, v.ishes to amend the list 

### ofemission sources in Appendix A. Table/\-1, it shall submit thol'c suggestedchanges to EPA for approval. IfEPA agrecs 

### with the suggested 

### changes. the Panics 

### will submit an umcndcd Agreement to the Regional Judicial OlTIcer for 

### incorporulion into a revised**l~innJ** Order. J.l, The**~rrettive** dote ofthis Ag.reemcnt is tbedote that the Final Order is signed b)' the Regional Judici
..l Olliecr. 15. ·Ibis 

### Agreement, upon incorpor.ltion into aFinal Orderby the 

### Regional Judicial 

### Officerand 

### fuJI sntisf3clion by the Parties, shall be ncomplete. full and final senlement 

### Oflht: violations alleged in this Agreement. lb.**~ch** Puny 

### shall bear its 

### 0\'1I1 costs and uttome)'s fees in connccticm with all issues associated with this ,\grecmcnI. 7ac: -:oT- 

### '--_c_lI,

Oatc;

__

## 'L_~_'--..:...~\--_/!.-l 

# __ Ul IT D·" ATE EN IRONEMENTAL PROTE TIO. r GE. CY REGIO

omplainanl.

XTO Energy Inc. R pondenl.TABLE A·I n Emt. Ion Soute••• Commeflo.d COn$lfUCuon W!USm: GROUPED ELl LArA SI!.C SPUD DATE LlSO SING PAD
34 ·2!> 25 5120 1 1211 2010 IS, /11<11011 '(

# . fal 2S 26**~011** ln12011 1512011 1131201

rDI**!llt~31** .\9 19 14 l/Z3I2011 11 5I?Oll & Ye. flltR """nl'J(. !I nMJ&,f. 91W 0uM Yes V't f**111~01'** 3.'2W201 11 !lr.!IIl1 llllZ011 .ou' 'oNTABLE A-2 (New Sources· Commence construction between Auausl 31, 2011 and December 31 2011) WELL SITE GROUPED WELL NAME SECTION TOWNSHIP RANG COUNTY SPUD DA WEUSON SINGLE PAD FBIR Smith 11 X-l0 10 149N 92W Dunn 71312011 No IFBIR IrooWotnan 21 X·l0 10 148N 92W Dunn 612112011 Ves FBIR YellowWoIf21X·10 10 148N 92W Dunn 613012011 F8IR Darcie 34J -14 14 148N 92W Dunn 8/211201 t No FBIR HunlsMed-cine 24X·8 6 149N 91W Dunn 911712011 y rSIR Beaks 24X·8 8 149N 91W Dunn 912012011 FBIR 1\ rPaw oU31X-12 12 149N 

## mw Dunn tOI2l20', No FaIR GoesEvmvwhere 31X·11 11 149N 92W Dunn 11/1212011 No FBIR OwBlackHawk 24X·27 27 149N 92W Dunn 1211012011 No FBIR Young[3ear31X-9 9 ll1BN 92W Dun" 1212512011 No
TABLE A·3 (New Sources· Commence construction botwE en January 1, 2012 and March 31, 2012) WELL SITE GROUPED WEU AME SECTIO TOWNSHIP RA GE COUJIlTV WELLS 0 SPUD DATE SINGLEPAO IFBIR L,.:J\vronce 24X-26 26 149N 92W Dunn 112212012 No FBIR Headle.ssTurtle 44X·32 32 149N 91W Dunn Zl612012 No FBIR Gnnnell 34X·33 33 149N 91W Dunn 31512012 No FBIR BlackMedicine 24X·21 21 149N 91W Dunn 312012012 No
TABLE A-4 (New Sources· Commence construction between Aprll1 2012 and June 30,2012) WELL SITE GROUPED WEll. NAME SECTION TOWNSHIP RANGE COUNTY SPUD DATE WEllS ON SINGLE PAD FBIR HuntsAlong J1X·31 2- 14BN 

## mw Dunn 51212012 No FBIR Geor eBta::kHa 21X 6 B lW 011 513012012 0 fBlR Srmlh 11X·10 Iii \0**1~9N** 92W Dunn 611412Ot2 No

### APPENDLX B E1I'1I SJON CONTROL REQUTREMENTS A. Applicability These rcquircmc!lts applyto C'xisting and new emission sources 3ssocialcd with oil production from the**B~kcn** Fonnatiun on lhe Fort Oenhold India.n Resc:rvation in North Dakota lind wgt.:t the control ofcasinghead gas emissions (also kno
....'Tl as trealer gas) and emissions from oil and produced water slemgc tanks (UltIks). 8. Conrrol Requirements All casinghead gas and lank emissions mustbe controlled orcaptured upon Startofproduclion. Ifgas gnthcring infh!.
..truclure is in place. casingheud gasshall be routed 10 IS gas gathering pipeline as soon as practicable:. IN'hen It pipeline is nOlllvaHable. casinghead gas is required to be routed 10 a control s)'Slcm ordevice In the Control System LIst below. The Control System Lisl also applies 10 emissions from oU 3tld produced w:nerFtorageumks. Capture orcontrol devices shall be operated at all tlmes when emlssiool> may be vented to them. The o....ner/open\lorshall maintain and operute ullltirpollution control equipmcnl, nnd all cquipmcnl employed to contain and collect vapors and transport them to thc cmission control system ordevice, in nccoro.mcc with the manufncrurcr's recommt."fldations and in nmanner consistent wilh good :tit pollution control pructice for minimizing emissions. Control Svstcm List Aground pit

## nl!.rC (including, butnot limited to pit Oarcs, shop built flares urother simibr oilfield type ilares) or other 90% orgreater ORE dcvice. Ifaground pit nan.:. is utilized, a 90% DRE to be assumed, This is ,ons/deled the minimum level ofcontrol 

### lorumk and trcater g:t.<; emissions 3tall times. 2. A v'lporrecovery unit or oil stabilizerthat is designed nnd operated to reduce the massconlent ofVOC lind total ha7..:trdous uirpollulant (HAP) emissiuns in the vapors vented to the dcv1cc by at leasl 95% by weight. 3. An enclosc:d combustion dcvlce appropriately sizcd for the sile's operating parumett:rs and for which the manufllcrurer represems will achieve:l destruction efficiency ofat [east 95% ofthe VUCs \o'ito respect to the \'olumelric now and HTU conlcnl ofthe site's waste gas stream, An enclosed combustion device Is opemtcd including, but nOI limited to the following:

• Illis device should be opcratcd with no visible emissions cxccpt Jbrperiods not 10 cxcf.,'Cd atOlal of5 minutes during IIny2 consecutive nours;**M~thod** 22 of40 CFR Appendix A shall be used to dctenninc the compliance with LI,is visible emission provision.

I I• Owncr/opcr:ltor shall install un appropriatc. rc:JiablclcmpcralUre sensorltr.t/lsminer that indicates continuous ignition oftile pilot name on the control device. TIle sensorltransmittcr will be connected to the sile's upervisory Contro] lind D:lta Acquisition (SCADA) S)'stcm. The SC/\DA system will record temperature readings ;It 11 specified frequency and will be programmed to trigger an almm iftempcratures outside ofa**prc~progrnmmed** range .urc detected. Forthe purpose ofthis parograph. "cominuous" monitoring equipment shall measureand record values at least once every hour
. .II A utility O:1l't.· (using an open flame**Withl~lJl encll)su~)**  !hut is designed and operated to reduce the mass eoment orvoc and total H.AP emissions in the ,papors: vented to the device by 3t least 98% byweight. A utility nnrl: is an) Oan: that is designed and operated in accordance with the requiremcnts of40 c.r.R § 60.18. Requirements of40 C.r:.R § 60.18 include. but ;)re not limited to Ute following:

• Flare shall 

### be designed and operated with no visible emissions except for periods nOl to exceed alOtal ofS minutes during any 2 consecutive hours; Mcthod 22 of40 CFR .I\ppe:ndix A shall 

### be us(,'t! to dctennine the compliance with this visible emission provision:


### • flare shl)J1 be opernlcd with (l nl'UflC present :11 all limes;

• An owner/operator has the choice ofadhering 10 eitherthe hC3t content spcciliculiol1s in pSl1lgraph 40 C.F.R. § 60. I8(c)(3)(ii) and themaximum tip velocity specincations in pnragl1lph (e)(4) oradhering to the requirement'l in 40 C.F.R. § 60. I8(cX3)(i);

• Flares used to comply wilh lhis**s~tion** shall be**st~m·assisted.** air-assisted or nonassisted;

• Owners/opemtors offlares shall monitor the control devices to cnsure that 

### we)' are operated and maintained in confomlsnce with their designs;

• The presen"e oftl nare pilot flame shall 

### be monitored using uthcmlocouple or any othercquivalcnI device 10 detectthe presence ofu flame. Continuous checks by un operntor to veritY the existence ofa visible flame orto verify properopcrntion of'the ignitermay be U,SL'(l In lieu ofa physic:!l device. Forthe purpose ofthis paragraph, "continuous" monitoring equipment shall measure i)nd record values at least once (:\'cl)' hour.
• For s3fc!y and air pollution control purposes: each flare must be equipped and opcrau:d wilh sn automatic ignitoror aconti"uous burning pilot, which must be maintatned in good working order. This is requin.'d even ifthe narc is used for emergency purposcs only. Conlrol**d~vicc.s** other ,hun those listed above may be utilized upon approval from the EPA. C. ReclIrdkceping**RC<i\lirtment.~** Owner/operatorshall main13in control device temperature Jogs for three years.

12

### CERTIFICATE OF SERVICE
The undersigned certifies that the original ufthe attached 

### ORDER GRANTING ELECTRONIC FILING OF CONSENT AGREEMENT ANI> FINAL ORDER in tho maUer ofXTO ENERGV, INC.; DOCKET NO.: CAA-08-2011-0018, was med with the Regional Hearing Clerk 011 

### August 26. 2011. 

### Further. the undersigned certifies that atrue and COrfeCt 

### copy**orth~** 

### document was delivered to Jim Eppers. Enforcement Attorney. U. S. EPA

- Region 8, 1595 Wynkoop Street. 

### Denver. CO 80202-1129. True and correct copies ofthe aforementioned documents were placed in the United States mail on August 26. 2101 

### L. 10: 

### Christopher W. Armstrong 

### Assistant General Counsel

- Environmental XTO Energy Inc. 

### 810 Houston Street fort Worth. TX 76102 And emailed La: 

### Elizabeth Whitsel 

### U. '. Environmental Protection Agency Cincinnati Finance Center 

### 26 W. Martin I.uther King Drive (M -0002) Cincinnati. Ohio 45268

August 26. 20II

# J~a.JmU4- Tina Artemis ParalegallRcgiollul ffcuring Clerk