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AIR QUALITY DIVISION CHAPTER 6, SECTION 3 OPERATING PERMIT WYOMING DEPARTMENT OF ENVIRONMENTAL QUALITY AIR QUALITY DIVISION 122 West 25th Street Cheyenne, Wyoming 82002 PERMIT NO. 3-0-233-2 Issue Date: March 3,2014 Expiration Date: April 13, 2016 Effective Date: March 3, 2014 Replaces Permit No.: 3-0-233-1 In accordance with the provisions ofW.S. §35-11-203 through W.S. §35-11-212 and Chapter 6, Section 3 of the Wyoming Air Quality Standards and Regulations, Mountain Gas Resources LLC Hay Reservoir Compressor Station Section 17, Township 23 North, Range 96 West Sweetwater County, Wyoming is authorized to operate a stationary source of air contaminants consisting of emission units described in this permit. The units described are subject to the terms and conditions specified in this permit. All terms and conditions of the permit are enforceable by the State of Wyoming. All terms and conditions of the permit, except those designated as not federally enforceable, are enforceable by EPA and citizens under the Act. A copy of this permit shall be kept on-site at the above named facility. Steven A. Dietrich, Administrator Air Quality Division Todd Parfitt, Director Department of Environmental Quality Date Date 3-3-/4

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    AIR QUALITY DIVISION122 West 25th Street

    Cheyenne, Wyoming 82002

    PERMIT NO. 3-0-233-2

    Issue Date: March 3,2014Expiration Date: April 13, 2016Effective Date: March 3, 2014Replaces Permit No.: 3-0-233-1

    In accordance with the provisions ofW.S. 35-11-203 through W.S. 35-11-212 and Chapter 6,Section 3 of the Wyoming Air Quality Standards and Regulations,

    Mountain Gas Resources LLCHay Reservoir Compressor Station

    Section 17, Township 23 North, Range 96 WestSweetwater County, Wyoming

    is authorized to operate a stationary source of air contaminants consisting of emission unitsdescribed in this permit. The units described are subject to the terms and conditions specified inthis permit. All terms and conditions of the permit are enforceable by the State of Wyoming. Allterms and conditions of the permit, except those designated as not federally enforceable, areenforceable by EPA and citizens under the Act. A copy of this permit shall be kept on-site at theabove named facility.

    Steven A. Dietrich, AdministratorAir Quality Division

    Todd Parfitt, DirectorDepartment of Environmental Quality






    TABLE OF CONTENTS(Modified March 3, 2014)

    General Information 3

    SonrceEmission Points .4

    Total Facility Estimated Emissions .4

    Facility-Specific Permit Conditions 5Facility-WidePermit Conditions 5Source-SpecificPermit Conditions 5Testing Requirements 6Monitoring Requirements 6Recordkeeping Requirements 7Reporting Requirements 8

    WAQSR Chapter 5, Section 2 and 40 CFR 60 Subpart JJJJ Requirements 10WAQSR Chapter 5, Section 2 and 40 CFR 60 Subpart 0000 Rcquircments l0WAQSR Chapter 5, Section 3 and 40 CFR 63 Subpart HH Requirements llWAQSR Chapter 5, Section 3 and 40 CFR 63 Subpart ZZZZ Requirements .ll

    ComplianceCertification and Schedule 12Compliance Certification 12Compliance Schedule 12

    General Permit Conditions 13

    State Only Permit Conditions 18

    Summaryof Source Emission Limits and Requirements 20

    Abbreviations ;..................................... : : :.23

    Definitions 24

    (Modified February 22, 2013)Appendix A: ReservedAppendixB: ReservedAppendix C: ReservedAppendix D: Reserved

    Permit No. 3-0-233-2 Page 2


    Company Name: Mountain Gas Resources LLC

    Mailing Address: P.O. Box 173779

    City: Denver State: CO Zip: 80217-3779

    Plant Name: Hay Reservoir Compressor Station

    Plant Location: Section 17, Township 23 North, Range 96 West, Sweetwater County (24miles north, northwest of Red Desert)

    Latitude / Longitude (WGS84): 41.58/-108.17

    Plant Mailing Address: P.O. Box 100

    City: Green River State: WY Zip: 82935

    Name of Owner: Mountain Gas Resources LLC Phone: 720-929-6000

    Responsible Official: Reserved (Amended March 2, 2015)

    Plant Manager/Contact: Scott Heiner

    DEQ Air Quality Contact: District 5 Engineer510 Meadowview DriveLander, WY 82520

    SIC Code: 1311

    Phone: 307-875-8785

    Phone: 307-332-6755

    Description of Process: Natural gas collected from operations in the Hay Reservoir field isdirected to the Hay Reservoir Compressor Station. Upon inlet to the site the inlet gas isdirected to a separator. Natural gas liquids collected from this process are dumped to thecompressor discharge station, leaving the station. Produced water is directed to theproduced water tanks. Following separation, the natural gas is directed to the fourcompressors where it is compressed to pipeline specifications. Following compression thegas is directed to a dehydrator to remove any remaining water. Following dehydration thenatural gas liquids collected before compression are discharged back into the pipeline.Pigging operations exist on site. A three-phase inlet slug catcher vessel is present.Hydrocarbon liquids from the slug catcher are sent to a pressurized vessel which acts as ablowcase. When the blowcase reaches a high level, the hydrocarbon liquids from theblowcasc vessel are dumped to the compressor discharge line, leaving the station. Waterfrom the inlet slug catcher is routed to the 400 bbl produced water tank and is truckedwhen needed.

    Permit No. 3-0-233-2 Page 3


    This table may not include any or all insignificant activities at this facility.(Modified February 22, 2013)







    Waukesha L7042 GSI Compressor Engine

    Waukesha L7042 GSI Compressor Engine

    Cummins Onan GNAB Genset Engine

    Waukesha L7042 GSI Compressor Engine

    Waukesha L7042 GSI Compressor Engine

    Dehydration Unit 1 Flare

    1478 hp

    1478 hp


    1478 hp

    1478 hp








    D1a TEG Dehydration Unit Overhead Still Vent 35 MMscfd MD-1418A

    Dlb TEG Dehydration Unit Overhead Flash Tauk Not applicable MD-1418A

    H1 Dehydration Unit Reboiler Heater 1.0 MMBtu/hr MD-1418AThe Waukesha L7042 OSI engines are 4-stroke rich burn engines equipped with air-fuel ratio controls (AFRe) andnon-selective catalytic reduction (NSCR) catalysts. The Cummins engine is an uncontrolled, 4-stroke rich burnengine.


    For informational purposes only. These emissions are not to be assumed as permit limits.


    Particulate Matter

    PMlO Particulate Matter

    Sulfur Dioxide (S02)

    Nitrogen Oxides (NOx)

    Carbon Monoxide (CO)

    Volatile Organic Compounds (VOCs)


    Emission estimates are from permit MD-1418A.

    Permit No. 3-0-233-2








    Page 4


    Facility-Wide Permit Conditions

    (Fi) FACILITY COMPRESSOR REQUIREMENTS[WAQSR Ch 6, Sec 3(h)(i)(1); Ch 6, Sec 2 Permit MD-1418A](a) The facility shall be limited to five engines consisting of the following:

    (i) Four Waukesha L70420S1 engines equipped with AFRC and NSCR catalysts (units Ei, E2,E4, & E5).

    (ii) One Cummins Onan GNAB engine (E3).(b) Once an engine is removed from the facility, an engine cannot be installed and operated in its place

    uniess authorized by an appropriate WAQSR Ch 6, Sec 2 permit modification (except as allowed fortemporary engine replacement under condition F5).

    (c) The permittee may expand the engine configuration beyond that described in paragraph (a) uponreceipt of a construction 01' modification permit issued under Chapter 6, Section 2 of WAQSR thatauthorizes such change. The permittee must, however, submit an application to modify thisoperating permit within 12 months of commencement operation for any engine not already includedin this permit.

    (d) The stack height for engines El, E2, and E4 shall be a minimum of 1.5 times the compressorbuilding height. The stack height for engine E5 shall be a minimum of 1.8 times the compressorbuilding height.

    Source-Specific Permit Conditions

    (F2) VISIBLE EMISSIONS [WAQSR Ch 3, Sec 2; Ch 3, Sec 6(b); Ch 6, Sec 2 Permit MD-14I8A](a) The flare (unit FI) shall be operated and maintained to be smokeless, with no visible emissions

    except for periods not to exceed a total of five minutes during any two consecutive hours asdetermined by 40 CFR 60, Appendix A, Method 22. The flare must be equipped and operated withan automatic ignitor or a continuous burning pilot which must be maintained in good working order.

    (b) Visible emissions of any contaminant discharged into the atmosphere from any other single emissionsource shall not exhibit greater than 20 percent opacity except for one period or periods aggregatingnot more than six minutes in anyone hour of not more than 40 percent opacity.

    (F3) ENGINE NOx AND CO EMISSIONS [WAQSR Ch 6, Sec 2 Permit MD-1418A](a) NOx and CO emissions shall not exceed the limits specified in Table I.(b) Compliance with the g/hp-hr limits is considered compliance wIth the lb/hr and TPY limits as long

    as each engine is operated at or below its site-rated capacity.(c) The permittee shall operate and maintain the engines (units EI, E2, E4 & E5), air pollution control

    equipment, and monitoring equipment according to good air pollution control practices at all times,including startup, shutdown, and malfunction.

    Table' ~, '., .:..c'.' .' ... : .. ":

    l..-----.-NOx COSource ID Engine Description

    g/hp-hr Ib/hr TPY Ib/hr TPYEI, E2, 84 & E5 Each Waukesha I.70420S1 1.0 3.3 14.3 2.0 6.5 28.5

    (F4) FUEL BURNING EQUIPMENT [WAQSR Ch 3, Sec 3] (Modificd February 22, 2013)NOx emissions from the dehydration unit reboiler heater (unit HI) shall not exceed 0.20 Ib/MMBtu heatinput.

    (F5) TEMPORARY ENGINE REPLACEMENT [WAQSR Ch 6, Sec 3(h)(i)(I)](a) Should an engine break down or require an overhaul during the term of this permit, the permittee

    may bring on site and operate a temporary replacement engine until repairs are made. Permanentreplacement of an engine must be evaluated by the Division under Ch 6, Sec 2 of WAQSR todetermine appropriate permitting action and evaluate the need for additional requirements resultingfrom the permanent replacement.

    (b) The temporary replacement unit shall be identical or similar to the unit replaced with emission levelsat 01' below those of the unit replaced.

    Permit No. 3-0-233-2 Page 5

  • (c) The permittee shall notify the Division in writing of such replacement within five working days,provide the date of startup of the replacement engine, and provide a statement regarding theapplicability of any New Source Performance Standards (NSPS) in 40 CFR, Part 60 and/or theapplicability of any National Emission Standards for Hazardous Air Pollutants (NESHAPs) in 40CFR, Part 63.

    (F6) VOC AND HAP EMISSIONS [WAQSRCh 6, Sec 2 Permit MD-1418A](a) VOC and HAP emissions associated with the glycol dehydration unit overhead still vent (unit Dla)

    shall be controlled witb condensers. The non-condensables shall be routed to combustion deviceswith a minimum control efficiency of 95 percent by weight for total organic compounds (TOC).Condensed liquids (water and hydrocarbons) shall be contained in a closed vessel.

    (b) The glycol unit's flash tank off gas (unit D1b) shall be used as system fuel. Any excess off gas shallbe routed to the combustion device (unit F I) for destruction.

    (c) The permittee shall maintain and operate the combustion device (unit FI) during all periods of activeoperation such that it remains effective as a viable emissions control device.

    Testing Requirements

    (F7) EMISSIONS TESTING [W.S. 35-11-110](a) The Division reserves the right to require additionaltesting as provided under condition GI of this permit.

    Should testing be required, test methods found at 40 CFR 60, Appendix A, shall be used as follows:(I) For visible emissions from the flare, Method 22 shall be used.(ii) For visible emissions from all other sources, Method 9 shall be used,(iii) For NOx emissions, Methods 1-4 and 7 or 710 shall be used,(iv) For CO emissions, Methods 1-4 and 10 shall be used.(v) For alternative test methods, or methods used for other pollutants, the approval of the

    Administrator must be obtained prior to using the test method to measure emissions.(b) Unless otherwise specified, testing shall be conducted in accordance with WAQSR Ch 5, Sec 2(h).

    (F8) COMPRESSOR ENGINE EMISSIONS TESTING [WAQSR Ch 6, Sec 2 Permit MD-1418A](Modified February 22, 2013)For emissions from the Waukesha compressor engines (units 101, 102, 104, & 105), the permittee shall testeach engine for NOx and CO at least annually to assess compliance with the limits set forth in condition F3,(a) The permittee shall measure emissions using the Division's portable analyzer monitoring protocol,

    or the EPA reference methods descrihed in condition F7, The monitoring protocol can bedownloaded at hltp:lldeq.state. wy. us/aqd/operating.asp or is available from the Division uponrequest.

    Monitoring Requirements

    (F9) VISIBLE EMISSIONS MONITORING [WAQSR Ch 6, Sec 3(h)(i)(C)(I)] (Modified February 22, 2013)(a) Periodic monitoring for visible emissions from the engines and heater (units E1-E5 & HI) shall consist

    ofmonitoring the type of fuel used to ensure natural gas is the sole fuel source for these units.(b) For visible emissions from the flare (unit F1), the permittee shall monitor and note the date, time and

    duration when the flare exhibits visible emissions for more than 5 minutes, to assess compliancewith condition F2(a).

    (FlO) COMPRESSOR ENGINE EMISSIONS MONITORING[WAQSR Ch 6, Sec 3(h)(I)(C)(I); Ch 6, Sec 2 Permit MD-1418A]Monitoring for emissions from each Waukesha compressor engine (units E1, E2, E4, & E5) shall consist ofthe annual emissions testing as specified in condition F8.

    (F11) CATALYST MONITORING [WAQSR Ch 6, Sec 2 Permit MD1418A]The permittee shall follow the monitoring and maintenance requirements as follows for the Waukeshacompressor engines (units EI, E2, E4 and E5), equipped with NSCR catalyst:(a) The catalyst inlet temperature shall be monitored and recorded at least monthly. If the temperature

    is outside the range of 750F to 12500F, corrective action shall be taken.

    Permit No. 3-0-233-2 Page 6

  • (b) The pressure drop across the catalyst shall be monitored and recorded at least monthly. If thepressure changes by more than two inches of water from the reference pressure drop, correctiveaction shall be taken.(i) Reference pressure drop for each engine shall be established during the initial performance test.

    When a catalyst is replaced, the reference pressure drop shall be re-established for that engineduring the first test required, in compliance with condition F8, which occurs after the catalystreplacement.

    (FI2) VOC AND HAP EMISSIONSMONITORING[WAQSRCh 6, Sec2 PermitMD-1418A;Ch 6, Sec 3(h)(i)(C)(l)](a) The permittee shall monitor for the presence of the pilot flame for the flare (unit FI) using a

    thermocouple and continuous recording device 01' any other equivalent device to detect and recordthe presence of the flame.

    (b) The permittee shall note the date and duration of time during active operation of the dehydration unitwhen the condensers 01' combustion device (unit F I) is not operational.

    (c) For the TEG dehydration unit, the permittee shall follow the procedures specified in 63.772(b)(2)to determine benzene emissions.(A) The permittee shall run GRI-GLYCaic at least once every 5 years, using the annual average

    extended hydrocarbon composition of wet gas sampled downstream for any inlet separatorsthat remove liquids from the wet gas streams and upstream of the dehydration unit contacttowers.

    (B) The annual average extended hydrocarbon compositions for all wet gas streams shall be basedon sampling conducted during normal operating conditIons for the dehydration unit, within 3years of the date of GRI-GLYCaic analysis.

    Recordkeeping Requirements

    (FI3) TESTING AND MONITORING RECORDS [WAQSR Ch 6, Sec 3(h)(i)(C)(II); Ch 6, Sec 2 PermitMD-1418A] (Modified February 22, 2013)(a) For any testing or monitoring required under conditions F7 and F8, other than Method 9 or Method

    22 observations, the permittee shall record, as applicable, the following:(i) The date, place, and time of sampling 01' measurements;(ii) The date(s) the analyses were performed;(iii) The company or entity that performed the analyses;(iv) The analytical techniques 01' methods used;(v) The results of such analyses;(vi) The operating conditions as they existed at the time of sampling 01' measurement, including,

    for the engines, the catalyst inlet temperature and pressure drop across the catalyst; and(vii) Any corrective actions taken.

    (b) For any Method 9 observations required by the Division under condition F7, the permittee shall keepfield records in accordance with Section 2.2 of Method 9.

    (c) For any Method 22 observations required by the Division under conditions F7, the permittee shallkeep field records in accordance with Sections 11.2 and 11.5 of Method 22.

    (d) For visible emissions monitoring from the flare (unit FI) under condition F9(b), the permittee shallrecord the date, time and duration when the flare exhibits visible emissions for more than 5 minutes.

    (e) For the catalyst monitoring and maintenance required under condition FlI, the permittee shall recordthe catalyst inlet temperature, pressure drop across the catalyst. any maintenance and/or correctiveaction triggered, and the reference pressure drop for each engine at the time of the monitoring. Thepermittee shall also record the dates of catalyst replacement for each engine.

    (f) For thc VOC and HAP emission monitoring, the permittee shall maintain records noting date andduration of time during active operation of the dehydration unit when the pilot flame is not present,01' when the flare 01' condensers are not operational.

    (g) For emissions monitoring from the dehydration unit required by condition F12(c), the permittee shallmaintain records in accordance with 40 CFR 63 Subpart HH,

    (h) The permittee shall retain on-site at the facility the records of each test, measurement, or observationand support information for a period of at least five years from the date of such information.

    Permit No. 3-0-233-2 Page 7

  • RepOltingRequirements

    (FI4) NOTIFICATIONS [WAQSR Ch 6, Sec 2 Permit MD-1418A](a) The permittee shall provide the Division at least 15 days prior notice of the test date for any testing

    required by condition F8.(b) The permittee shall notify the Division within 24-hours if any engine testing/monitoring shows

    operation outside the emission limits specified in condition F3.(i) The permittee shall repair the engines no later than seven calendar days of such a

    testing/monitoring event, and shall repair and retest/monitor the affected engine todemonstrate the engine has been returned to operation within the limits in condition F3.

    (ii) Compliance with this condition regarding repair and retesting/monitoring shall not be deemedto limit the authority of the Division to cite the owner or operator for an exceedance of theemission limits for any testing which shows noncompliance.

    (c) Upon shutdown and removal of an engine from the facility, written notif1cation is required within 15days of removal. Such notification shall be submitted on a complete AQD-CBM-EngineInstallation/Removal form, or an equivalent Division approved form. The form can be downloadedfrom the Air Quality Division website or obtained from the Air QuaiityDivision.

    (d) The notifications shall reference this condition number (F14) and be submitted to the Division inaccordance with condition G4 of this permit.

    (F15) TEST REPORTS [WAQSR Ch 6, Sec 3(h)(i)(C)(IIl); Ch 6, Sec 2 Permit MD-1418A](a) The permittee shall report the results of the emissions tests required under conditions F8, and any

    additional testing required by the Division under condition F7, within 45 days of conducting the tests.However, if testing for any engine shows operation out of compliance, the Division must be notifiedwithin 24 hours as indicated under condition F14(b)

    (b) The reports shall include the information specified under condition F13.(c) The reports shall reference this condition number (FI5) and be submitted to the Division in

    accordance with condition G4 of this permit.

    (F16) MONITORING REPORTS [WAQSR Ch 6, Sec 3(h)(i)(C)(Ill)] (Modified February 22, 2013)(a) The following shall be reported to the Division by January 31 and July 31 each year:

    (i) Documentation that all emissions 'units are firing natural gas as specified in condition F9.(ii) The number, duration, and cause of the excursions from the temperature or pressure drop

    ranges specified in condition F t I for each engine. The report shall include a summary of anymaintenance and/or corrective actions taken; if no excursions occurred during the reportingperiod, this shall be stated in the report.

    (iii) For the semiannual period that the GRI-GLYCalc anaiysls required by condition FI2(c) isconducted, the actual average benzene emissions (in terms of benzene emissions per calendaryear) from the dehydration unit, as determined in accordance with condition F12(c) and 40CFR 63 Subpart RH.

    (b) All instances of deviations from the conditions ofthis permit must be clearly identified in each report.(c) The semiannual reports shall reference this condition number (F16) and be submitted in accordance

    with condition G4 of this permit.

    (FI7) GREENHOUSE GAS REPORTS [W.S. 35-11-110]The permittee shall submit to the Division a summary of any reporus) required to be submitted to the EPAunder 40 CFR Part 98.(a) The repot(s) shall be submitted to the Division within 60 days of submission to EPA, in a format as

    specified by the Division.(b) The reporus) shall be submitted in accordance with condition G4(a)(i) ofthis permit, to the attention of

    the Division's Emission Inventory Program. A copy need not be sent to the DEQ Ail'Quality contact.

    (FI8) REPORTING EXCESS EMISSIONS & DEVIATIONS FROM PERMIT REQUIREMENTS[WAQSR Ch 6, Sec 3(h)(i)(C)(1Il)](a) General reporting requirements are described under the General Conditions of this permit. The

    Division reserves the right to require reports as provided under condition G I of this permit.

    Permit No. 3-0-233-2 Page 8

  • (b) Emissions which exceed the limits specified in this permit and which are not reported under adifferent condition of this permit shall be reported annually with the emission inventory unlessspecifically superseded by condition 017, condition 019, 01' other condition(s) of this permit. Theprobable cause of such exceedance, the duration of the exceedance, the magnitude of theexceedance, and any corrective actions 01' preventative measures taken shall be included in thisannual report. For sources and pollutants which are not continuously monitored, if at any timeemissions exceed the limits specified in this permit by 100 percent, 01' if a single episode of emissionlimit exceedance spans a period of 24 hours 01' more, such exceedance shall be reported to theDivision within one working day of the cxceedance. (Excess emissions due to an emergency shallbe reported as specified In condition 017. Excess emissions due to unavoidable equipmentmalfunction shall be reported as specified in condition 019.)

    (c) Any other deviation from the conditions of this permit shall be reported to the Division in writingwithin 30 days of the deviation 01' discovery of the deviation.

    Permit No. 3-0-233-2 Page 9



    SUBl'ART JJJJ [40 CFR Part 60 Subparts A aud JJJJ; aud WAQSR Ch 5, Sec 2]If applicable, the permittee shall meet all requirements nf 40 CFR 60 SUbparts A and JJJJ, andWAQSR Ch 5, Sec 2, as thcy apply to affected statiouary spark ignition (SI) internal combustioncngiues (ICE). (As required by condition F5(c), if an engine is replaced or reconstructed, subpartapplicability will need to be reevaluated and a statement regarding applicability submitted to theDivision.) For the purposes of this subpart, the date that construction commences is the date theengine is ordered by the owner or operator, Au affected source is defined at 60.4230.

    On November 20, 2012, engines EI-E4 were uot subject to Subpart JJJJ according to informationsubmitted to the Division by the permittee. Engine E5 must meet the requirements of Subpart ZZZZby meeting the requirements of 40 CFR 60, SUbpart JJJJ for Stationary Spark Ignition InternalCombustion Englnes. However, on November 20, 2012, engine E5 had no applicable requirementsfrom Subpart JJJJ because of its date of manufacture.



    (Modificd March 3, 2014)

    SUBPART 0000 REQUIREMENTS 140 CFR 60 Subparts A and 0000; and WAQSR Ch 5, Sec 21The permittee shall meet ali applicable reqnircmeuts of 40 CFR 60 Snbparts A and 0000 audWAQSR Ch 5, Sec 2 as they apply to affected facilities as specified under 60.5365.

    The subparts are available at http;!!!cfJ.lretrieve.html.orfrom the Divisionnpon request.

    Permit No. 3-0-233-2 Page 10


    (Modified February 22, 2013)


    SUBPART HH REQUIREMENTS 140 CFR 63, Subparts A and HH; and WAQSR Ch 5, Sec 3]The permittee shall meet all requirements of 40 CFR 63, Subparts A and HH and WAQSR Ch 5, Sec3, as they apply to affected sources as defined in 63.760, located at oil and natural gas productioufacilities. For area sources, the affected source includes eacb trictbylenc glycol (TEG) dehydrationunit as specified in 63,760(b)(2),


    SUBPART ZZZZ REQUIREMENTS 140 CFR 63 Subparts A and ZZZZ; WAQSR Ch 5, Sec 3]The permittee shall meet all requirements of 40 CFR 63 Subparts A and ZZZZ and WAQSR Ch 5,Sec 3 as thcy apply to each affected source as iudicated in 63.6590(a). An affected source is anyexisting, new, or reconstructed stationary RICE located at a major or area source of HAP cmissious,excludiug statiouary RICE beiug tested at a stationary RICE test cell/stand. (As required bycondition F5(c), if an engine is replaced or reconstructed, subpart applicability will need to bc re-evaluated and a statement regarding applicability submitted to the Division.) This facility iscurrently identified as an area source of HAP emissions. Affected sources at this facility include thefour Waukesha L7042GSI engines and the Cummins Onan GNAP engine (units EI-E5),

    The subparts are available at or from the Division upon request.

    Permit No, 3-0-233-2 Page 11


    Compliance Certification [WAQSR Ch 6, Sec 3(h)(iii)(E)](Modified February 22, 2013) (Modified March 3,2014)

    (CI) (a) The permittee shall submit by January 31 each year a certification addressing compliance with therequirements of this penn it. The certification shall be submitted as a stand-alone document separatefrom any monitoring reports required under this permit.

    (b) (i) For visible emissions from the flare, the permittee shall assess compliance with condition F2by conducting the monitoring required by condition F9(b).

    (ii) For visible emissions from the units listed in condition F9(a), permittee shall assesscompliance with condition F2 by verifying natural gas was the sole fuel source.

    (iii) For NOx and CO emissions from the compressor engines, the permittee shall assesscompliance with condition F3(a) by conducting the testing required by condition F8 and thecatalyst monitoring required by condition FII.

    (iv) For VOC and HAP emissions, the permittee shall assess compliance with condition F6 byconducting the monitoring required by condition F12.

    (v) For greenhouse gas reporting, the permittee shall assess compliance with condition FI7 byverifying that reports were submitted in accordance with conditions FI7(a) and (b).

    (vi) For any engine subject to 40 CFR 60 Subpart JJJJ, the permittee shall assesscompliance with Subpart JJJJ by conducting any applicable testing aud monitoringrequired by 60.4237, 60.4243, and 60.4244, and by rcvicwing the records required by60.4245 and 60.4246.

    (vii) For any affected facility subjcct to 40 CFR 60 Subpart 0000, the permittee shall assesscompliance with Subpart 0000 hy conducting any applicable tcsting and monitoringrequired by 60.5413 through 60.5417 and by rcviewing any applicable recordsrequired by 60.5420,

    (viii) The permittee shall assess compliance with Part 63 Subpart HH by reviewing anyrecords required by 63.760 and 63.774.

    !i!l The permittee shall assess compliance with Part 63 SUbpart ZZZZ hy conducting anyapplicable testing and monitoring required by 63.6610 through 63.6640 and byreviewing the records required by 63.6655 and 63.6665.

    (c) The compliance certification shall include:(i) The permit condition or applicable requirement that is the basis of the certification;(ii) The current compliance status;(iii) Whether compliance was continuous or intermittent; and(iv) The methods used for determining compliance.

    (d) For any permit conditions or applicable requirements for which the source is not in compliance, thepermittee shall submit with the compliance certification a proposed compliance plan and schedulefor Division approval.

    (e) The compliance certification shall be submitted to the Division in accordance with condition 04 ofthis permit and to the Assistant Regional Administrator, Office of Enforcement, Compliance, andEnvironmental Justice (8ENF-T), U.S. EPA - Region ViII, 1595 Wynkoop Street, Denver, CO80202-1129.

    (I) Determinations of compliance or violations. of this permit are not restricted to the monitoringrequirements listed in paragraph (b) of this condition; other credible evidence may be used.

    Compliance Schedule [WAQSR Ch 6, Sec 3(h)(iii)(C) and (D)]

    (C2) The permittee shall continue to comply with the applicable requirements with which the permittee hascertified that it is already in compliance.

    (C3) The permittee shall comply in a timely manner with applicahle requirements that become effective duringthe term of this permit.

    Permit No, 3-0-233-2 Page 12


    Powers onhe Administrator: [W.S. 35-11-110]

    (0 I) (a) The Administrator may require the owner or operator of any point source to complete plans andspecifications for any application for a permit required by the Wyoming Environmentai Quality Actor reguiations made pursuant thereto and require the submission of such reports regarding actuai orpotential violations of the Wyoming Environmental Quality Act or regulations thereunder.

    (b) The Administrator may require the owner or operator of any point source to establish and maintainrecords; make reports; install, use and maintain monitoring equipment 01' methods; sampleemissions, 01' provide such other information as may be reasonably required and specified.

    Permit Renewal and Expiration: [WAQSR Ch 6, Sec 3(c)(i)(C), (d)(ii), (d)(iv)(B), and (h)(i)(B)] [W.S. 35-11-206(1)]

    (02) This permit is issued for a fixed term of five years. Permit expiration terminates the permittee's right tooperate unless a timely and complete renewal application is submitted at least six months prior to the dateof permit expiration. If the permittee submits a timely and complete application for renewal, thepermittee's failure to have an operating permit is not a violation of WAQSR Chapter 6, Section 3 until theDivision takes final action on the renewal application. This protection shall cease to apply after acompleteness determination if the applicant fails to submit by the deadline specified in writing by theDivision any additional information identified as being needed to process the application.

    Duty to Supplement: [WAQSR Ch 6, Sec 3(c)(iii)]

    (03) The permittee, upon becoming aware that any relevant facts were omitted 01' incorrect information wassubmitted in the permit application, shall promptly submit such supplementary facts 01' correctedinformation. The permittee shall also provide additional information as necessary to address anyrequirements that become applicable to the facility after this permit is issued.

    Submissions: [WAQSR Ch 6, Sec 3(c)(iv)] [W.S. 35-11-206(c)]

    (04) Any document submitted shall be certified as being true, accurate, and complete by a responsible official.(a) Submissions to the Division.

    (i) Any submissions to the Division including reports, certifications, and emission inventoriesrequired under this permit shall be submitted as separate, stand-alone documents and shall besent to:

    Administrator, Ail' Quality Division122 West 25th StreetCheyenne, Wyoming 82002

    (H) Unless otherwise noted elsewhere in this permit, a copy of each submission to theAdministrator under paragraph (a)(1) of this condition shall be sent to the DEQ Ail' QualityContact listed on page 3 of this permit.

    (b) Submissions to EPA.(i) Each certification required under condition CI of this permit shall also be sent to:

    Assistant Regional AdministratorOffice of Enforcement, Compliance, and Environmental Justice (8ENF-T)U.S. EPA - Region VlII1595 Wynkoop StreetDenver, CO 80202-1129.

    (ii) All other required submissions to EPA shall be sent to:Office of Partnerships and Regulatory AssistanceAil' and Radiation Program (8P-AR)U.S. EPA - Region VIII1595 Wynkoop StreetDenver, CO 80202-1129

    Penn it No. 3-0-233-2 Page 13

  • Changes for Which No Permit Revision Is Required: [WAQSR Ch 6, Sec 3(d)(iii)]

    (G5) The permittee may change operations without a permit revision provided that:(a) The change is not a modification under any provision of title I of the Cleao Air Act;(h) The change has met the requirements of Chapter 6, Section 2 of the WAQSR and is not a

    modification under Chapter 5, Section 2 01' Chapter 6, Section 4 of the WAQSR and the changes donot exceed the emissions allowed under the permit (whether expressed therein as a rate of emissions01' in terms of total emissions); and

    (e) The permittee provides EPA and the Division with written notification at least 14 days in advance ofthe proposed change. The permittee, EPA, and the Division shall attach such notice to their copy ofthe relevant permit. For each such chauge, the written notification required shall include a briefdescription of the change within the permitted facility, the date on which the change will occur, anychange in emissions, and aoy permit term 01' condition that is no longer applicable as a result of thechange. The permit shield, if one exists for this permit, shall not apply to aoy such change made.

    Transfer of Ownership or Operation: [WAQSR Ch 6, Sec 3(d)(v)(A)(IV)]

    (G6) A change in ownership 01' operational control of this facility is treated as an administrative permitamendment if no other change in this permit is necessary and provided that a written agreement containinga specific date for transfer of permit responsibility, coverage, and liability between the current and newpermittee has been submitted to the Division.

    Reopening for Cause: [WAQSR Ch 6, Sec 3(d)(vli)] [W.S. 35-11-206(I)(ii) and (iv)]

    (G7) The Division will reopen and revise this permit as necessary to remedy deficiencies in the followingcircumstances:(a) Additional applicable requirements under the Cleao Ail' Act 01' the WAQSR that become applicable

    to this source if the remaining permit term is three or more years. Such reopening shall becompleted not later than 18 months after promulgation of the applicable requirement. No reopeningis required if the effective date of the requirement is later than the date on which the permit is due toexpire, uniess the original permit 01' any of its terms and conditions have heen extended.

    (b) Additional requirements (including excess emissions requirements) become applicable to an affectedsource under the acid rain program. Upon approval by EPA, excess emissions offset plans shall bedeemed to be incorporated into the permit.

    (c) The Division 01' EPA determines that the permit contains a material mistake or that inaccuratestatements were made in establishing the emissions standards 01' other terms or conditions of thepermit.

    (d) The Division or EPA determines that the permit must be revised or revoked to assure compliancewith applicable requirements.

    Annual Fee Payment: [WAQSR Ch 6, Sec 3(I)(i), (ii), and (vi)] [W.S. 35-11-211]

    (G8) The permittee shall, as a condition of continued operations, submit an annual fee to the Division asestablished in Chapter 6, Section 3 (I) of the WAQSR. The Division shall give written notice of theamount of fee to he assessed and the basis for such fee assessment annuaily. The assessed fee is due onreceipt of the notice unless the fee assessment is appealed pursuaot to W.S. 35-11-211(d). If aoy part of thefee assessment is not appealed it shall be paid to the Division on receipt of the written notice. Anyremaining fee which may be due after completion of the appeal is immediately due and payable uponissuance of the Council's decision. Failure to pay fees owed the Division is a violation of Chapter 6,Section 3 (I) aod W.S. 35-11-203 and may be cause for the revocation of this permit.

    Annual Emissions Inventories: [WAQSR Ch 6, Sec 3(I)(v)(G)]

    (G9) The permittee shall submit an annual emission inventory for this facility to the Division for fee assessmentand compliance determinations within 60 days foilowing the end of the calendar year. The emissionsinventory shail he in a format specified by the Division.

    Permit No. 3-0-233-2 Page 14

  • Severability Clause: [WAQSR Ch 6, Sec 3(h)(i)(E)]

    (0 I0) The provisions of this permit are severable, and if any provision of this permit, or the application of anyprovision of this permit to any circumstance, is held invalid, the application of such provision to othercircumstances, and the remainder of this permit, shall not be affected thereby.

    Compliance: [WAQSR Ch 6, Sec 3(h)(i)(F)(I) and (II)] [W.S. 35-11-203(b)]

    (0 II) The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes aviolation of the Clean Air Act, Article 2 of the Wyoming Environmental Quality Act, and the WAQSR and isgrounds for enforcement action; for permit termination, revocation and reissuance, or modification; or fordenial of a permit renewal application. It shall not be a defense for a permittee in an enforcement action that itwould have been necessary to halt 01' reduce the permitted activity in order to maintain compliance with theconditions of this permit.

    Permit Actions: [WAQSR Ch 6, Sec 3(h)(i)(F)(Ill)] [W.S. 35-11-206(t)]

    (012) This permit may be modified, revoked, reopened, and reissued, or terminated for cause. The filing of arequest by the permittee for a permit modification, revocation and reissuance, or termination, or of anotification of planned changes or anticipated noncompliance does not stay any permit condition.

    Property Rights: [WAQSR Ch 6, Sec 3(h)(i)(F)(IV)]

    (013) This permit does not convey any property rights of any sort, or any exclusive privilege.

    Duty to Provide Information: [WAQSR Ch 6, Sec 3(h)(i)(F)(V)]

    (014) The permittee shall furnish to the Division, within a reasonable time, any information that the Division mayrequest in writing to determine whether cause exists for modifying, revoking and reissuing, or terminating thepermit or to determine compliance with the permit. Upon request, the permittee shall also furnish to theDivision copies of records required to be kept by the permit, including information claimed and shown to beconfidential under W.S. 35-11-1101 (a) of the Wyoming Environmental Quality Act. Upon request by theDivision, the permittee shall also furnish confidential information directly to EPA along with a claim ofconfidentiality.

    Emissions Trading: [WAQSR Ch 6, Sec 3(h)(i)(H)]

    (015) No permit revision is required, under any approved economic incentives, marketable permits, emissionstrading and other similar programs or processes for changes that are provided for in this permit,

    Inspection and Entry: [WAQSR Ch 6, Sec 3(h)(iii)(B)] [W.S. 35-11-206(c)]

    (G16) Authorized representatives of the Division, upon presentation of credentials and other docnments as may berequired by law, shall be given permission to:(a) enter upon the permittee's premises where a source is located or emissions related activity is

    conducted, or where records must be kept under the conditions of this permit;(b) have access to and copy at reasonable times any records that must be kept under the conditions of this

    permit;(c) inspect at reasonabie times any facilities, equipment (including monitoring and air pollution control

    equipment), practices, or operations regulated or required under this permit;(d) sample or monitor any substances or parameters at any location, during operating hours, for the

    purpose of assuring compliance with this permit or applicable requirements.

    Excess Emissions Due to an Emergency: [WAQSR Ch 6, Sec 3(1)]

    (G 17) The permittee may seek to establish that noncompliance with a technology-based emission limitation underthis permit was due to an emergency, as defined in Ch 6, Sec 3(1)(i) of the WAQSR. To do so, thepermittee shall demonstrate the affirmative defense of emergency through properly signed,contemporaneous operating logs, or other relevant evidence that:(a) an emergency occurred and that the permittee can identify the cause(s) of the emergency;(b) the permitted facility was, at the time, being properly operated;(c) during the period of the emergency the permittee took all reasonable steps to minimize levels of

    emissions that exceeded the emissions standards, 01' other requirements in this permit;

    Permit No. 3-0-233-2 Page 15

  • (d) The permittee submitted notice of the emergency to the Division within one working day of the timewhen emission limitations were exceeded due to thc emergency. This notice must contain adescription of the emergency, any steps taken to mitigate emissions, and corrective actions taken.

    Diluting and Concealing Emissions: [WAQSR Ch I, Sec 4]

    (G 18) No person shall cause or permit the installation or use of any device, contrivance, or operational schedulewhich, without resulting in reduction of the total amount of air contaminant released to the atmosphere,shall dilute or conceal an emission from a source, This condition shall not apply to the control of odors.

    Unavoidable Equipment Malfunction: [WAQSR Ch I, Sec 5]

    (G19) (a) Any source believing that any emissions in excess of established regulation limits or standardsresulted from an unavoidable equipment malfunction, shall notify the Division within 24 hours ofthe incident via telephone, electronic mail, fax, or other similar method. A detailed description ofthe circumstances of the incident as described in paragraph 5(a)(i)(A) Chapter I, including acorrective program directed at preventing future such incidents, must be snbmitted within 14 days ofthe onset of the incident. The Administrator may extend this l-l-day time period for cause.

    (b) The burden of proof is on the owner or operator of the source to provide sufficient information todemonstrate that an unavoidable equipment malfunction occurred.

    Fugitive Dust: [WAQSR Ch 3, Sec 2(1)]

    (G20) The permittee shall minimize fugitive dust in compliance with standards in Ch 3, Sec 2(1) of WAQSR forconstruction/demolition activities, handling and transportation of materials, and agricultural practices.

    Carbon Monoxide: [WAQSR Ch 3, Sec 5]

    (G21) The emission of carbon monoxide in stack gases from any stationary source shall be limited as may benecessary to prevent ambient standards from being exceeded.

    Asbestos: [WAQSR Ch 3, Sec 8]

    (G22) The permittee shall comply with emission standards for asbestos during abatement, demolition, renovation,manufacturing, spraying and fabricating activities.(a) No owner or operator shall build, erect, install, or use any article, machine, equipment, process, or

    method, the use of which conceals an emission which would otherwise constitute a violation of anapplicable standard. Such concealment includes, but is not limited to, the use of gaseous dilutants toachieve compliance with a visible emissions standard, and the piecemeal carrying out of anoperation to avoid coverage by a standard that applies only to operations larger than a specified size.

    (b) All owners and operators conducting an asbestos abatement project, including an abatement projecton a residential building, shall be responsible for complying with Federal requirements and Statestandards for packaging, transportation, and delivery to an approved waste disposal facility asprovided in paragraph (m) ofCh 3, Sec 8.

    (c) The permittee shall follow State and Federal standards for any demolition and renovation activitiesconducted at this facility, including:(i) A thorough inspection of the affected facility or part of the facility where the demolition or

    renovation activity will occur shall be conducted to determine the presence of asbestns,including Category I and Category 11 non-friable asbestos containing material. The results ofthe inspection will determine which notification and asbestos abatement procedures areapplicable to the activity.

    (ii) The owner or operator shall follow the appropriate notification requirements of Ch 3, Sec8(i)(Ii).

    (Iii) The owner 01' operator shall follow the appropriate procedures for asbestos emissions control,as specified in Chapter 3, Section 8(i)(iii).

    (d) No owner or operator of a facility may install or reinstall on a facility component any insulatingmaterials that contain commercial asbestos if the materials are either molded and friable or wet-applied and friable after drying; The provisions of this paragraph do not apply to spray-applied .insulating materials regulated under paragraph (j) of Ch 3, Sec 8.

    (e) The permittee shall comply with all other requirements ofWAQSR Ch 3, Sec 8.

    Permit No. 3-0-233-2 Page 16

  • Open Burning Restrictions: [WAQSR Ch 10, Sec 2]

    (023) The permittee conducting an open burn shall comply with all rules and regulations of the WyomingDepartment of Environmental Quality, Division of Ail' Quality, and with the Wyoming EnvironmentalQuality Act.(a) No person shall burn prohibited materials using an open burning method, except as may be

    authorized by permit. "Prohibited materials" means substances including, but not limited to;natural 01' synthetic rubber products, including tires; waste petroleum products, such as oil 01' usedoil filters; insulated wire; plastic products, including polyvinyl chloride ("PVC") pipe, tubing andconnectors; tal', asphalt, asphalt shingles, 01' tal' paper; railroad ties; wood, wood waste, 01' lumberthat is painted 01' chemically treated; explosives 01' ammunition; batteries; hazardous waste products;asbestos 01' asbestos containing materials; 01' materials which cause dense smoke discharges,excluding refuse and flaring associated with oil and gas well testing, completions and wellworkovers.

    (b) No person 01' organization shall conduct 01' cause 01' permit open burning for the disposal of tradewastes, for a salvage operation, for the destruction of fire hazards if so designated by a jurisdictionalfire authority, 01' for fire fighting training, except when it can be shown by a person 01' organizationthat such open burning is absolutely necessary and in the public interest. Any person or organizationintending to engage in such open burning shall file a request to do so with the Division.

    SulfUl'Dioxide Emission Trading and Inventory Pl'Ogram [WAQSRCh 14]

    (024) Any BART (Best Available Retrofit Technology) eligible facility, 01' facility which has actual emissions ofSO, greater than 100 tpy in calendar year 2000 01' any subsequent year, shall comply with the applicablerequirements of WAQSR Ch 14, Sections I through 3, with the exceptions described in sections 2(c) and3(a).

    Stratospheric Ozone Pl'Otection Requirements: [40 CFR Part 82]

    (025) The permittee shall comply with all applicable Stratospheric Ozone Protection Requirements, including butnot limited to:(a) Standards for Appliances [40 CFR Part 82, Subpart F]

    The permittee shall comply with the standards for recycling and emission reduction pursuant to 40CFR Part 82, Subpart F - Recycling and Emissions Reduction, except as provided for motor vehicleail' conditioners (MVACs) in Subpart B:(I) Persons opening appliances tor maintenance, service, repair, 01' disposal must comply with the

    required practices pursuant to 82.156.(il) Equipment used during the maintenance, service, repair, or disposal of appliances must

    comply with the standards for recycling and recovery equipment pursuant to 82.158.(iii) Persons performing maintenance, service, repair, or disposal of appliances must be certified

    by an approved technician certification program pursuant to 82.161.(iv) Persons disposing of small appliances, MVACs and MVAC-Iike appliances must comply with

    record keeping requirements pursuant to 82.l66. ("MVAC-Iike appliance" as defined at82.152).

    (v) Persons owning commercial 01' industrial process refrigeration equipment must comply withthe leak repair requirements pursuant to 82.166.

    (vi) Owners/operators of appliances normally containing 50 or more pounds of refrigerant mustkeep records of refrigerant purchased and added to such appliances pursuant to 82.166.

    (vii) The permittee shall comply with all other requirements of Subpart F.(b) Standardsfor Motor Vehicle Ail'Conditioners [40 CFR Part 82, Subpart B]

    If the permittee performs a service on motor (fleet) vehicles when this service involves ozone-depleting substance refrigerant in the motor vehicle ail' conditioner (MVAC), the permittee is subjectto all the applicable requirements as specified in 40 CFR part 82, Subpart B, Servicing of MotorVehicle Ail' Conditioners. The term "motor vehicle" as used in Subpart B does not include a vehiclein which final assembly of the vehicle has not been completed. The term "MVAC" as used inSubpart B does not include the air-tight sealed refrigeration system used as refrigerated cargo, 01' thesystem used on passenger buses using HCFC-22 refrigerant.

    Permit No. 3-0-233-2 Page 17

  • STATE ONLY PERMIT CONDITIONS(Modified February 22, 2013) (Modified March 3,2014)

    The conditions iisted in this section are State only requirements and are not federally enforceahle.

    Ambient Standards

    (SI) The permittee shall operate the emission units described in this permit such that the following ambientstandards are not exceeded, In accordance with 40 CFR 50:

    50 micrograms pel' cubic meter annuai arithmetic meanPM" particulate

    24-hr average concentration with not more 2 (a)matter i50 micrograms per cubic meterthan one exceedance per year

    PM,,, particulate 15 micrograms per cubic meter annual arithmetic mean 2 (b)matter 35 micrograms per cuhic meter 981h percentile 24-hr average concentration

    53 parts per billion annual average concentratlon

    three-year average ofthe annual 98111

    Nitrogen dioxide 100 parts per billion percentile of the daily maximum I-hI' 3'average concentration

    0.053 parts per million annual arithmetic mean

    three-year average of the annual (991h

    75 parts per billion percentile) of the daily max I-hI'

    Suifur dioxide average 4

    0.5 parts per million3-hr blocks not to be exceeded morethan once per calendar year

    10 milligrams pel' cubic metermax8-hr concentration with notmore than

    Carbon one exceedance per year


    max l-hr concentration with not more than40 milligrams per cuhic meter one exceedance per year

    three-year average of the annual fourth-Ozone 0.075 parts per million highest daily maximum 8-hr average 6


    70 micrograms per cubic meterY, hour average not to be exceeded morethan two times per year

    Hydrogeny, hour average not to be exceeded more 7sulfide

    40 micrograms pel' cubic meter than two times in any five consecutivedays

    0.25 milligrams 503 per 100 maximum annual averageSuspended square centimeters per day 8sulfate 0,50 milligrams 503 per 100

    square centimeters pel' daymaximum 30-day value

    Lead and its 0.15 micrograms pel' cubic metermaximum arithmetic 3-month mean 10

    compounds concentration for a 3-year period

    Permit No. 3-0-233-2 Page 18

  • Hydrogen Sulfide: [WAQSR Ch 3, Sec 7]

    (S2) Any exit process gas stream containing hydrogen sulfide which is discharged to the atmosphere from anysource shall be vented, incinerated, flared or otherwise disposed of in such a manner that ambient sulfurdioxide and hydrogen sulfide standards are not exceeded.

    Odors: [WAQSR Ch 2, Sec II]

    (S3) (a) The ambient air standard for odors from any source shall be limited to an odor emission at theproperty line which is undetectable at seven dilutions with odor free air as determined by ascentometer as manufactured by the Barnebey-Cheney Company or any other instrument, device, ortechnique designated by the Division as producing equivalent results. The occurrence of odors shallbe measured so that at least two measurements can be made within a period of one hour, thesedeterminations being separated by at least 15 minutes.

    (b) Odor producing materials shall be stored, transported, and handled in a manner that odors producedfrom such materials are confined and that accumulation of such materials resulting from spillage orother escape is prevented.

    Permit No. 3-0-233-2 Page 19


    Source Description: Four Waukesha L7042GSI Compressor Engines (Modified Februa

    Particulate 120percent opacity [F2J WAQSR Ch 3, Sec 2 Testing ifrequired[F7J

    Verification ofnaturalgas firing [F9J

    Record the results ofany additional testing[F13]

    Report type offuel fired [F16J

    Report excess emissions andperntit deviations [F18J



    LO g/hp-hr; 3.3 Ib/hr; and 14.3IWAQSR CH 6, Sec 2TPY [F3J PerntitMD-1418A

    2.0 g/hp-hr; 6.5 Ib/hr; and 28.5IWAQSR CH 6, Sec 2TPY [F3J Permit MD-1418A

    Annual testing [F8J [Annual testing per F8[FIOJCatalyst Monitoring[Fll]

    Annual testing [F8] [Annual testing per F8[FIOJCatalyst Monitoring[FllJ

    Record testing andmonitoring results[F13]

    Record testing andmonitoring results[FJ3J

    Notifications [F14]

    Report test resnlts [FISJReport monitoring [F16]

    Report excess emissions andpermit deviations [F18]

    Notifications [F14]

    Report test results [FISJ

    Report monitoring [F16JReport excess emissions andpermit deviations [F18J



    WAQSR Ch S, Sec 2 and 40 CFR 60 Subparts A & JJJJ (no applicable requirements on November 20, 2012)

    WAQSR Ch S, Sec 3 and 40 CFR 63 Snbparts A & ZZZZ

    These tables are intended only to highlight and summarize applicable requirements for each source. The corresponding permit conditions, listed in brackets, contain detaileddescriptions of the compliance requirements. Compliance with the summary conditions in these tables may not be sufficient to meet permit requirements. These tables may notreflect all emission sources at this facility.

    Permit No. 3-0-233-2 Page 20

  • Source ID#: E3 Source Description: Cummins Onan GNAB Generator Engine (Modified February 22, 2013)

    Pollulant .EmissiOnS.LimitfWQrkPraroce C.m-eSp

  • Source ID#: Dla & Dlb, Fl Source Description: TEG Dehydration Unit Overhead Still Vent & Flash Tank, and Dehydration Unit Flareodified Februarv 22. 2013)

    Particulate [Operate and maintain flare to be /WAQSR Ch 6, Sec 2smokeless [F2] Permit MD-1418A

    Testing ifrequired [F7]

    Monitor for visible Record time, date and duration IReport excess emissions andemissions lasting more than ofvisible emissions lasting more permit deviations [F18]5 minutes [F9] than 5 minutes [F13]


    Control emissions from Dlawith condensers, flare, andclosed vessel. Use offgas asfuel. Operate flare during allperiods ofactive operation [F6]

    WAQSR Ch 6, Sec 2Permit MD-1418A

    Testing ifrequired [F7]

    Monitor for presence ofpilot flame and non-operational status ofcondensers or flare.Benzene calculationonceevery 5 years;gas samplingno more than threeyearsold [F12]

    Recordtime, date,anddurationofany flame outage and non-operational status of flare orcondensers [F13]

    Reportexcess emissions andpermit deviations [F18]


    WAQSR Ch 5, Sec 3 and 40 CFR 63 Subparts A & HH

    These tables are intended only to highlight and summarize applicable requirements for each source. The corresponding permit conditions, listed in brackets, contain detaileddescriptions of the compliance requirements. Compliance with the summary conditions in these tables may not be sufficient to meet permit requirements. These tables may notreflect all emission sources at this facility.

    Permit No. 3-0-233-2 Page 22



    Actual cubic feet pel' minuteAil'Quality DivisionBest available control technology (see Definitions)British Thermal UnitClean Air ActCompliance Assurance MonitoringCode of Federal RegulationsCarbon monoxideDegrees FahrenheitWyoming Department of Environmental QualityUnited States Environmental Protection Agency (see Definitions)Electrostatic PrecipitatorGram(s) per horsepower hourGallon(s)Grain(s)Hydrogen sulfideHazardous air pollutant(s)HorsepowerHour(s)Pound(s)ThousandMaximum available control technology (see Definitions)ManufacturerMilligram(s)MillionMotor vehicle air conditionersNot applicableNon-methane hydrocarbon(s)Oxides of nitrogenOxygenOperating Permit ProgramParticulate matterParticulate matter less than or equal to a nominal diameter of 10 micrometersParts per million (by volume)Parts per million (by weight)Quality Improvement PlanReciprocating Internal Combustion EngineStandard cubic foot (feet)Standard cubic foot (feet) per dayStandard cubic meter(s)Standard Industrial ClassificationSulfur dioxideSulfur trioxideOxides of sulfurTo be determinedTon(s) per dayTon(s) per hourTons per yearUnited States CodeMicrogram(s)Volatile organic compound(s)Wyoming StatuteWyoming Air Quality Standards & Regulations (see Definitions)4-Strokc Rich Burn

    Permit No. 3-0-233-2 Page 23


    "Act" means the Clean Air Act, as amended, 42 U.S.C. 7401, et seq.

    "Administrator" means Administrator of the Air Quality Division, Wyoming Department of EnvironmentalQuality.

    "Applicable requirement" means all of the following as they apply to emissions units at a source subject to Chapter6, Section 3 of the WAQSR (including requirements with future effective compliance dates that have beenpromulgated 01' approved by the EPA or the State through rulemaking at the time of issuance of the operatingpermit):

    (a) Any standard or other requirement provided for in the Wyoming implementation plan approved 01'promulgated by EPA under title I of the Act that implements the relevant requirements of the Act,including any revisions to the plan promulgated in 40 C.F.R. Part 52;

    (b) Any standards or requirements in the WAQSR which are not a part of the approved Wyomingimplementation plan and are not federally enforceable;

    (c) Any term 01' condition of any preconstruction permits issued pursuant to regulations approved 01'promulgated through rulemaking under title I, including P31ts C 01' D of the Act and including Chapter 5,Section 2 and Chapter 6, Sections 2 and 4 of the WAQSR;

    (d) Any standard or other requirement promulgated under Section III of the Act, including Section Ill(d) andChapter 5, Section 2 of the WAQSR;

    (e) Any standard or other requirement under Section 112 of the Act, including any requirement concerningaccident prevention under Section 112(1')(7) of the Act and including any regulations promulgated by EPAand the State pursuant to Section 112 of the Act;

    (I) Any standard or other requirement of the acid rain program under title IV of the Act or the regulationspromulgated thereunder;

    (g) Any requirements established pursuant to Section 504(b) or Section 114(a)(3) of the Act concerningenhanced monitoring and compliance certifications;

    (h) Any standard or other requirement governing solid waste incineration, under Section 129 of the Act;

    (i) Any standard or other requirement for consumer and commercial products, under Section 183(e) of the Act(having to do with the release of volatile organic compounds under ozone control requirements);

    Ul Any standard or other requirement of the regulations promulgated to protect stratospheric ozone under titleVI of the Act, unless the EPA has determined that such requirements need not be contained in a title Vpermit;

    (k) Any national ambient air quality standard or increment or visibility requirement under part C of title 1 ofthe Act, but only as it would apply to temporary sources permitted pursuant to Section 504(e) of the Act;and

    (I) Any state ambient air quality standard or increment or visibility requirement of the WAQSR.

    (m) Nothing under paragraphs (A) through (L) above shall be construed as affecting the allowance program andPhase II compliance schedule under the acid rain provision of Title IV of the Act.

    "BACT" 01' "Best available control technology" means an emission limitation (including a visible emissionstandard) based on the maximum degree of reduction of each pollutant subject to regulation under the WAQSR 01'regulation under the Federal Clean Air Act, which would be emitted from 01' which results for any proposed majoremitting facility 01' major modification which the Administrator, on a case-by-case basis, taking into account energy,environmental, and economic impacts and other costs, determines is achievable for such source or modificationthrough application or production processes and available methods, systems, and techniques, including fuel cleaning01' treatment or innovative fuel combustion techniques for control of such pollutant. If the Administrator determinesthat technological 01' economic limitations on the application of measurement methodology to a particular class ofsources would make the imposition of an emission standard infeasible, he may instead prescribe a design,equipment, work practice 01' operational standard or combination thereof to satisfy the requirement of Best Available

    Permit No. 3-0-233-2 Page 24

  • Control Technology. Such standard shall, to the degree possible, set forth the emission reduction achievable byimplementation of such design, equipment, work practice, or operation and shall provide for compliance by meanswhich achieve equivalent results. Application of BACT shall not result in emissions in excess of those allowedunder Chapter 5, Section 2 of the WAQSR and any other new source performance standard or national emissionstandards for hazardous air pollutants promulgated by EPA but not yet adopted by the state.

    "Department" means the Wyoming Department of Environmental Quality or its Director.

    "Director" means the Director of the Wyoming Department of Environmental Quality.

    "Division" means the Air Quality Division of the Wyoming Department of Environmental Quality or itsAdministrator.

    "Emergency" means any situation arising from sudden and reasonably unforeseeable events beyond the control ofthe source, including acts of God, which situation requires immediate corrective action to restore normal operation,and that causes the source to exceed a technology-based emission limitation under the permit, due to unavoidableincreases in emissions attributable to the emergency. An emergency shall not include noncompliance to the extentcaused by improperly designed equipment, lack of preventative maintenance, careless or improper operation, oroperator error.

    "EPA" means the Administrator of the U.S. Environmental Protection Agency or the Administrator's designee.

    "Fuel-burning equipment" means any furnace, boiler apparatus, stack, or appurtenances thereto used in the processof burning fuel or other combustible material for the purpose of producing heat or power by indirect heat transfer.

    "Fugitive emissions" means those emissions which could not reasonably pass through a stack chimney, vent, orother functionally equivalent opening.

    "Insignificant activltles" means those activities which are incidental to the facility's primary business activity andwhich result in emissions of less than one ton per year of a regulated pollutant not included in the Section 112 (b)list of hazardous air pollutants or emissions less than 1000 pounds pel' year of a pollutant regulated pursuant tolisting under Section 112 (b) of the Act provided, however, such emission levels of hazardous air pollutants do notexceed exemptions based on insignificant emission levels established by EPA through rulemaking for modificationunder Section 112 (g) of the Act.

    "MACT" or "Maximum achievable control technology" means the maximum degree of reduction in emissionsthat is deemed achievable for new sources in a category or subcategory that shall not be Jess stringent than theemission control that is achieved in practice by the best controlled similar source, as determined by theAdministrator. Emission standards promulgated for existing sources in a category or subcategory may be lessstringent than standards for new sources in the same category or subcategory but shall not be less stringent, and maybe more stringent than:

    (a) the average emission limitation achieved by the best performing 12 percent of the existing sources (forwhich the Administrator has emission information), excluding those sources that have, within 18 monthsbefore the emission standard is proposed or within 30 months before such standard is promulgated,whichever is later, first achieved a level of emission rate or emission reduction which complies, or wouldcomply if the source is not subject to such standard, with the lowest achievable emission rate applicable tothe source category and prevailing at the time, in the category or subcategory for categories andsubcategories with 30 ormore sources, 01'

    (b) the average emission limitation achieved by the best performing five sources (for which the Administratorhas or could reasonably obtain emissions information) in the category or subcategory for categories orsubcategories with fewer than 30 sources.

    "Modification" means any physical change in, or change in the method of operation of, an affected facility whichincreases the amount of any air pollutant (to which any state standards applies) emitted by such facility or whichresults in the emission of any such air pollutant not previously emitted.

    "Permittee" means the person or entity to whom a Chapter 6, Section 3 permit is issued.

    "Potenttal to emit" means the maximum capacity of a stationary source to emit any air pollutant under its physicaland operational design. Any physical or operational limitation on the capacity of a source to emit an air pollutant,including air pollution control equipment and restrictions on hours of operation or on the type or amount of material

    Permit No. 3-0-233-2 Page 25

  • combusted, stored or processed, shall be treated as part of its design if the limitation is enforceable by EPA and theDivision. This term does not alter or affect the use of this term for any other purposes under the Act, or the term"capacity factor" as used in title IV of the Act or the regulations promulgated thereunder.

    "Regulated air pollutant" means the following:

    (a) Nitrogen oxides (NOx) or any volatile organic compound;

    (b) Any pollutant for which a national ambient air quality standard has been promulgated;

    (c) Any pollutant that is subject to any standard established in Chapter 5, Section 2 ofthe WAQSR or SectionIII of the Act;

    (d) Any Class I or Il substance subject to a standard promulgated under or established by title VI of the Act; or

    (e) Any pollutant subject to a standard promulgated under Section 112 or other requirements established underSection 112 of the Act, including Sections 112(g), 0), and (1') of the Act, including the following:

    (1) Any pollutant subject to requirements under Section 1120) of the Act. If EPA fails to promulgate astandard by the date established pursuant to Section I 12(e) of the Act, any pollutant for which asubject source would be major shall be considered to be regulated on the date 18 months after theapplicable date established pursuant to Section 112(e) of the Act; and

    (11) Any pollutant for which the requirements of Section 112(g)(2) of the Act have been met, but onlywith respect to the individual source subject to Section 112(g)(2) requirement.

    (I) Pollutants regulated solely under Section 112(1') of the Act are to be regulated only with respect to therequirements of Section 112(1') for permits issued under this Chapter 6, Section 3 of the WAQSR.

    "Renewal" means the process by which a permit is reissued at the end of its term.

    "Responsible official" means one of the following:

    (a) For a corporation:

    (i) A president, secretary, treasurer, or vice-president of the corporation in charge of a principalbusiness function, or any other person who performs similar policy or decision-making functions forthe corporation; or

    (11) A duly authorized representative of such person if the representative is responsible for the overalloperation of one or more manufacturing, production, or operating facilities applying for or subject toa permit and either:

    (A) the facilities employ more than 250 persons or have gross annual sales or expendituresexceeding $25 million (in second quarter 1980 dollars); or

    (B) the delegation of authority to such representative is approved in advance by the Division;

    (b) For a partnership or sale proprietorship: a general partner or the proprietor, respectively;

    (c) For a municipality, State, Federal, or other public agency: Either a principal executive officer or rankingelected official. For the purposes of this part, a principal executive officer of a federal agency includes thechief executive officer having responsibility for the overall operations of a principal geographic unit of theagency; or

    (d) For affected sources:

    (i) The designated representative or alternate designated representative in so far as actions, standards,requirements, or prohibitions under title IV of the Act 0[' the regulations promulgated thereunder areconcerned; and

    (11) The designated representative, alternate designated representative, or responsible official underChapter 6, Section 3 (b)(xxvi) of the WAQSR for all other purposes under this section.

    "WAQSR" means the Wyoming Air Quality Standards and Regulations promulgated under the WyomingEnvironmental Quality Act, W.S. 35-ll-l 01, et seq,

    Permit No. 3-0-233-2 Page 26

  • Permit No. 3-0-233-2

    APPENDICES A through D are reserved

    (Modified February 22, 2013)