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Home My WebLink About20203316.tiff r Cm x>:�r COLORADO Department of Public Health&Environment RECEIVED OCT 2 8 2020 WELD COUNTY COMMISSIONERS Weld County - Clerk to the Board 1150O St PO Box 758 Greeley, CO 80632 October 19, 2020 Dear Sir or Madam: On October 20, 2020, the Air Pollution Control Division will begin a 30-day public notice period for DCP Operating Company, LP - Wells Ranch Compressor Station. A copy of this public notice and the public comment packet are enclosed. Thank you for assisting the Division by posting a copy of this public comment packet in your office. Public copies of these documents are required by Colorado Air Quality Control Commission regulations. The packet must be available for public inspection for a period of thirty (30) days from the beginning of the public notice period. Please send any comment regarding this public notice to the address below. Colorado Dept. of Public Health Et Environment APCD-SS-B1 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 Attention: Public Notice Coordinator ,-.-,Ov Cdlp,. KW fit:, \�9�;. 4300 Cherry Creek Drive S., Denver,CO 80246-1530 P 303-692-2000 www.colorado.gov/cdphe 47, 4w ct. Jared Polls,Governor I Jill Hunsaker Ryan,MPH, Executive Director , ,, 0 Pvbitc Rev;(..w c.c.: 'LC-re), I-Aix OS),O Gca- ), PcdoCJmI £R(CH/CK) 2020-3316 tl ( (CrD(00 It / 1O (SC) <Mt .M Air Pollution Control Division Notice of a Proposed Project or Activity Warranting Public GDPHE Comment Website Title: DCP Operating Company, LP - Wells Ranch Compressor Station - Weld County Notice Period Begins: October 20, 2020 Notice is hereby given that an application for a proposed project or activity has been submitted to the Colorado Air Pollution Control Division for the following source of air pollution: Applicant: DCP Operating Company, LP Facility: Wells Ranch Compressor Station This facility is a natural gas compressor station. NWNW SEC 27 T6N R63W Weld County The proposed project or activity is as follows: Modification to split combined engine emissions and throughput limits into separate limits for each engine individually (Point 001-004). Additional request to remove all permit limitations and conditions related to fugitive emissions (Point 006) and engine C-197 (Point 007), as these points have been cancelled. The Division has determined that this permitting action is subject to public comment per Colorado Regulation No. 3, Part B, Section III.C due to the following reason(s): • the source is requesting a federally enforceable limit on the potential to emit in order to avoid other requirements The Division has made a preliminary determination of approval of the application. A copy of the application, the Division's analysis, and a draft of Construction Permit 12WE2039 have been filed with the Weld County Clerk's office. A copy of the draft permit and the Division's analysis are available on the Division's website at https://www.colorado.gov/pacific/cdphe/air-permit-public-notices The Division hereby solicits submission of public comment from any interested person concerning the ability of the proposed project or activity to comply with the applicable standards and regulations of the Commission. The Division will receive and consider written public comments for thirty calendar days after the date of this Notice. Comments may be submitted using the following options: • Use the web form at https://www.colorado.Rov/pacific/cdphe/air-permit-public-notices. This page also includes guidance for public participation • Send an email to cdphe.commentsapcd@state.co.us • Send comments to our mailing address: Elie Chavez Colorado Department of Public Health and Environment 4300 Cherry Creek Drive South, APCD-SS-B1 Denver, Colorado 80246-1530 � COLORADO 1 I g die Department of Pubic Health 6 Environment C . "-t- COLORADO MAir Pollution Control Division Department of Public Health Et Environment Dedicated to protecting and improving the health and environment of the people of Colorado CONSTRUCTION PERMIT Permit number: 12WE2039 Issuance: 3 Date issued: Issued to: DCP Operating Company, LP Facility Name: Wells Ranch Compressor Station Plant AIRS ID: 123/9950 Physical Location: NWNW SEC 27 T6N R63W County: Weld County Description: Natural Gas Compressor Station Equipment or activity subject to this permit: Facility AIRS Description Equipment ID Point One (1) Waukesha, Model L7044GS1, Serial Number 5283701686, natural gas-fired, turbo-charged, 4SRB reciprocating internal combustion engine, site rated at C-193 001 1680 horsepower at 1200 RPM. This engine shall be equipped with non-selective catalytic reduction (NSCR) system and air-fuel ratio control. This emission unit will be used for natural gas compression One (1) Waukesha, Model L7044GSI, Serial Number 5283702571, natural gas-fired, turbo-charged, 4SRB reciprocating internal combustion engine, site rated at C-194 002 1680 horsepower at 1200 RPM. This engine shall be equipped with non-selective catalytic reduction (NSCR) system and air-fuel ratio control. This emission unit will be used for natural gas compression. Page 1 of 25 :41. COLORADO Air Pollution Control Division COPHE Department of Public Health b Environment Dedicated to protecting and improving the health and environment of the people of Colorado Facility AIRS Description Equipment ID Point One (1) Waukesha, Model L7044GSI, Serial Number 5283702572, natural gas-fired, turbo-charged, 4SRB reciprocating internal combustion engine, site rated at C-195 003 1680 horsepower at 1200 RPM. This engine shall be equipped with non-selective catalytic reduction (NSCR) system and air-fuel ratio control. This emission unit will be used for natural gas compression. One (1) Waukesha, Model L7044GSI, Serial Number 5283701688, natural gas-fired, turbo-charged, 4SRB reciprocating internal combustion engine, site rated at C-196 004 1680 horsepower at 1200 RPM. This engine shall be equipped with non-selective catalytic reduction (NSCR) system and air-fuel ratio control. This emission unit will be used for natural gas compression. One (1) Triethylene glycol (TEG) natural gas dehydration unit(make, model, serial number: not submitted) with a design capacity of 50 MMscf per day. This emissions unit is equipped with either one (1) electric pump or one (1) gas injection pump (make, model: not submitted) plus one D-1 005 backup pump with a design capacity of 24 gallons per minute each. This unit is equipped with a flash tank, reboiler and still vent. Emissions from the still vent are routed to the enclosed combustor. Emissions from the flash tank are routed to a vapor recovery unit (VRU)which returns vapors back to the inlet of the compressor station. The VRU is permitted 1% annual downtime. The engines addressed under AIRS Points 001, 002, 003 and 004 may be replaced with another engine in accordance with the temporary engine replacement provision or with another Waukesha L7044GSI engine in accordance with the permanent replacement provision of the Alternate Operating Scenario (AOS), included in this permit as Attachment A. This permit is granted subject to all rules and regulations of the Colorado Air Quality Control Commission and the Colorado Air Pollution Prevention and Control Act (C.R.S. 25-7-101 et seq), to the specific general terms and conditions included in this document and the following specific terms and conditions. REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION Page 2 of 25 COLORADO Air Pollution Control Division Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado 1. This construction permit represents final permit approval and authority to operate this emissions source. Therefore, it is not necessary to self-certify. (Regulation Number 3, Part B, Section III.G.5.) EMISSION LIMITATIONS AND RECORDS 2. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis). (Reference: Regulation No. 3, Part B, Section II.A.4) Annual Limits: Facility AIRS Tons per Year Emission Type Equipment ID Point NO,t VOC CO C-193 001 8.1 11.4 16.2 Point C-194 002 8.1 11.4 16.2 Point C-195 003 8.1 11.4 16.2 Point C-196 004 8.1 11.4 16.2 Point D-1 005 1.2 28.3 6.6 Point See "Notes to Permit Holder #4 for information on emission factors and methods used to calculate limits. Facility-wide emissions of each individual hazardous air pollutant shall be less than 8.0 tpy. Facility-wide emissions of total hazardous air pollutants shall be less than 20.0 tpy. Compliance with the annual limits shall be determined on a rolling twelve (12) month total. By the end of each month a new twelve month total is calculated based on the previous twelve months' data. The permit holder shall calculate emissions each month and keep a compliance record on site or at a local field office with site responsibility for Division review. 3. The emission points in the table below shall be operated and maintained with the control equipment as listed in order to reduce emissions to less than or equal to the limits established in this permit (Reference: Regulation No.3, Part B, Section III.E.) Facility AIRS Pollutants Equipment Point Control Device Controlled ID C-193 001 Non-selective catalytic reduction system and NOx, VOC, and CO air/fuel ratio controller C-194 002 Non-selective catalytic reduction system and NOx, VOC, and CO air/fuel ratio controller C-195 003 Non-selective catalytic reduction system and NOx, VOC, and CO air/fuel ratio controller C-196 004 Non-selective catalytic reduction system and NOx, VOC, and CO air/fuel ratio controller Page 3 of 25 is •r�:�z COLORADO % Air Pollution Control Division �i�" Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado D-1 005 Vapor recovery unit and Combustion device VOC (detailed in condition 15) PROCESS LIMITATIONS AND RECORDS 4. This source shall be limited to the following maximum processing rates as listed below. Monthly records of the actual processing rate shall be maintained by the applicant and made available to the Division for inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Process/Consumption Limits Facility AIRS Equipment Point Process Parameter Annual Limit ID C-193 001 Consumption of natural gas as a fuel 115.91 MMscf/yr C-194 002 Consumption of natural gas as a fuel 115.91 MMscf/yr C-195 003 Consumption of natural gas as a fuel 115.91 MMscf/yr C-196 004 Consumption of natural gas as a fuel 115.91 MMscf/yr D-1 005 Natural gas throughput 18,250 MMscf/yr Compliance with the yearly consumption limits shall be determined on a rolling twelve (12) month total. By the end of each month a new twelve-month total is calculated based on the previous twelve months' data. The permit holder shall calculate monthly consumption of natural gas and keep a compliance record on site or at a local field office with site responsibility, for Division review. STATE AND FEDERAL REGULATORY REQUIREMENTS 5. The permit number and AIRS ID number shall be marked on the subject equipment for ease of identification. (Reference: Regulation Number 3, Part B, III.E.) (State only enforceable). 6. Visible emissions shall not exceed twenty percent (20%) opacity during normal operation of the source. During periods of startup, process modification, or adjustment of control equipment visible emissions shall not exceed 30% opacity for more than six minutes in any sixty consecutive minutes. Emission control devices subject to Regulation 7, Part D, Sections I.C.1.d or II.B.2.b shall have no visible emissions. (Reference: Regulation No. 1, Section II.A.1. Et 4.) 7. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 8. The reciprocating compressors driven by Points 001-004 are subject to the rod packing requirements for compressors in the 8-hour ozone control area under Regulation No. 7, Part D, Section I.J.2. Rod packing on reciprocating compressors must be replaced every 26,000 hours of operation or every thirty-six (36) months. Page 4 of 25 -_ COLORADO Air Pollution Control Division Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado 9. Points 001-004: This equipment is subject to the control requirements for stationary and portable engines in the 8-hour ozone control area under Regulation No. 7, Part E, Section I.B.1. For rich burn reciprocating internal combustion engines, a non-selective catalyst reduction system and an air fuel controller shall be required. 10. Points 001-004: This equipment is subject to the control requirements for natural gas-fired reciprocating internal combustion engines under Regulation No. 7, Part E, Section I.D.2 (State only enforceable). The owner or operator of any natural gas-fired reciprocating internal combustion engine that is either constructed or relocated to the state of Colorado from another state after the date listed in the table below shall operate and maintain each engine according to the manufacturer's written instructions or procedures to the extent practicable and consistent with technological limitations and good engineering and maintenance practices over the entire life of the engine so that it achieves the emission standards required in the table below: Maximum Engine Construction or Emission Standard in g/hp-hr HP Relocation Date NOx CO V0C ≥500HP July 1, 2007 2.0 4.0 1.0 July 1, 2010 1.0 2.0 0.7 11. Point 005: Compliance with the emission limits in this permit shall be demonstrated by running the GRI GlyCalc model version 4.0 or higher on a monthly basis using the most recent wet gas analysis and recorded operational values (including gas throughput, lean glycol recirculation rate, VRU downtime and other operational values specified in the OEtM Plan). Recorded operational values, except for gas throughput, shall be averaged on a monthly basis for input into GRI GlyCalc. 12. Point 005: This unit shall be configured such that the flash tank vapors are routed to the VRU to be recycled to the compressor station inlet and still vent vapors are routed to an enclosed combustor. The control system shall reduce uncontrolled emissions of VOC from the TEG dehydration unit to the emission levels listed in Condition 2, above. Operating parameters of the control equipment are identified in the operation and maintenance plan. (Reference: Regulation No.3, Part B, Section III.E.) 13. Point 005: 99%of emissions that result from the flash tank associated with this dehydrator shall be recycled to the compressor station inlet and recompressed. 1% downtime of the VRU is allowed and during that time, the flash tank emissions shall be controlled by an enclosed combustor. 14. Point 005: This source shall be limited to a maximum lean glycol recirculation pump rate as calculated per 40 CFR, Part 63, Subpart HH, §63.764 (d)(2)(i). If the owner or operator requests an alternate circulation rate per §63.764(d)(2)(ii), then maximum recirculation rate shall not exceed 24.0 gallons per minute. The owner or operator shall maintain monthly records of the actual lean glycol recirculation rate and make them available to the Division for inspection upon request. Page 5 of 25 •r:• COLORADO Air Pollution Control Division �i��i�l Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado 15. Point 005: This equipment is subject to the control requirements for glycol natural gas dehydrators under Regulation No. 7, Part D, Section I.H. Beginning May 1, 2005, uncontrolled actual emissions of volatile organic compounds from the still vent and vent from any gas- condensate-glycol (GCG) separator (flash separator or flash tank), if present, shall be reduced by at least 90 percent through the use of air pollution control equipment. This source shall comply with all applicable general provisions of Regulation 7, Part D, Section I. 16. Point 005: The combustion device covered by this permit is subject to Regulation No. 7, Part D, Section II.B General Provisions (State only enforceable). If a flare or other combustion device is used to control emissions of volatile organic compounds to comply with Part D, Section II, it shall be enclosed, have no visible emissions during normal operations, and be designed so that an observer can, by means of visual observation from the outside of the enclosed flare or combustion device, or by other convenient means approved by the Division, determine whether it is operating properly. The operator shall comply with all applicable requirements of Part D, Section II. 17. Point 005: This equipment is subject to the control requirements for glycol natural gas dehydrators under Regulation No. 7, Part D, Section II.D (State only enforceable). Beginning May 1, 2008, uncontrolled actual emissions of volatile organic compounds from the still vent and vent from any gas-condensate-glycol (GCG) separator (flash separator or flash tank), if present, shall be reduced by an average of at least 90 percent through the use of air pollution control equipment. This source shall comply with all applicable general provisions of Regulation 7, Part D, Section II. 18. Point 005: This source is subject to the requirements of 40 CFR, Part 63, Subpart HH - National Emission Standards for Hazardous Air Pollutants for Source Categories from Oil and Natural Gas Production Facilities including, but not limited to, the following: • §63.764 - General Standards o §63.764 (e)(1) -The owner or operator is exempt from the requirements of paragraph (c)(1) and (d) of this section if the criteria listed in paragraph (e)(1)(i) or (ii) of this section are met, except that the records of the determination of these criteria must be maintained as required in §63.774(d)(1). • §63.764 (e)(1)(i) - The actual annual average flowrate of natural gas to the glycol dehydration unit is less than 85 thousand standard cubic meters per day (3.0 MMSCF/day), as determined by the procedures specified in §63.772(b)(1) of this subpart; or • §63.764 (e)(1)(ii) - The actual average emissions of benzene from the glycol dehydration unit process vent to the atmosphere are less than 0.90 megagram per year, as determined by the procedures specified in §63.772(b)(2) of this subpart. Page 6 of 25 , COLORADO Air Pollution Control Division Department of Public Health b Environment Dedicated to protecting and improving the health and environment of the people of Colorado • §63.772 - Test Methods, Compliance Procedures and Compliance Demonstration o §63.772(b) - Determination of glycol dehydration unit flowrate or benzene emissions. The procedures of this paragraph shall be used by an owner or operator to determine glycol dehydration unit natural gas flowrate or benzene emissions to meet the criteria for an exemption from control requirements under §63.764(e)(1). • §63.772(b)(1) - The determination of actual flowrate of natural gas to a glycol dehydration unit shall be made using the procedures of either paragraph (b)(1)(i) or (b)(1)(ii) of this section. • §63.772(b)(1)(i) - The owner or operator shall install and operate a monitoring instrument that directly measures natural gas flowrate to the glycol dehydration unit with an accuracy of plus or minus 2 percent or better. The owner or operator shall convert annual natural gas flowrate to a daily average by dividing the annual flowrate by the number of days per year the glycol dehydration unit processed natural gas. • §63.772(b)(1)(ii) - The owner or operator shall document, to the Administrator's satisfaction, that the actual annual average natural gas flowrate to the glycol dehydration unit is less than 85 thousand standard cubic meters per day. • §63.772(13)(2) - The determination of actual average benzene emissions from a glycol dehydration unit shall be made using the procedures of either paragraph (b)(2)(i) or (b)(2)(ii) of this section. Emissions shall be determined either uncontrolled, or with federally enforceable controls in place. • §63.772(b)(2)(i) - The owner or operator shall determine actual average benzene emissions using the model GRI-GLYCalc TM , Version 3.0 or higher, and the procedures presented in the associated GRI-GLYCalc TM Technical Reference Manual. Inputs to the model shall be representative of actual operating conditions of the glycol dehydration unit and may be determined using the procedures documented in the Gas Research Institute (GRI) report entitled "Atmospheric Rich/Lean Method for Determining Glycol Dehydrator Emissions" (GRI-95/0368.1); or • §63.772(b)(2)(ii) - The owner or operator shall determine an average mass rate of benzene emissions in kilograms per hour through direct measurement using the methods in §63.772(a)(1)(i) or (ii), or an alternative method according to §63.7(f). Annual emissions in kilograms per year shall be determined by multiplying the mass rate by the number of hours the unit is operated per year. This result shall be converted to megagrams per year. Page 7 of 25 y. COLORADO Air Pollution Control Division Department of Public I leaith&Environment Dedicated to protecting and improving the health and environment of the people of Colorado • §63.774 - Recordkeeping Requirements o §63.774 (d)(1) - An owner or operator of a glycol dehydration unit that meets the exemption criteria in §63.764(e)(1)(i) or §63.764(e)(1)(ii) shall maintain the records specified in paragraph (d)(1)(i) or paragraph (d)(1)(ii) of this section, as appropriate, for that glycol dehydration unit. • §63.774 (d)(1)(i) - The actual annual average natural gas throughput (in terms of natural gas flowrate to the glycol dehydration unit per day) as determined in accordance with §63.772(b)(1), or • §63.774 (d)(1)(ii) - The actual average benzene emissions (in terms of benzene emissions per year) as determined in accordance with §63.772(b)(2). 19. Point 005: If this source is unable meet the criteria listed in paragraph (e)(1)(i) or (ii) of §63.764 as listed in Condition 18, then this source shall be subject to the TEG dehydrator area source requirements of 40 CFR, Part 63, Subpart HH - National Emission Standards for Hazardous Air Pollutants for Source Categories from Oil and Natural Gas Production Facilities including, but not limited to, the following: • §63.760 - Applicability and designation of affected source o §63.760 (f) - The owner or operator of an affected major source shall achieve compliance with the provisions of this subpart by the dates specified in paragraphs (f)(1) and (f)(2) of this section. The owner or operator of an affected area source shall achieve compliance with the provisions of this subpart by the dates specified in paragraphs (f)(3) through (f)(6) of this section. • §63.760 (f)(6) - The owner or operator of an affected area source that is not located in an Urban-1 county, as defined in §63.761, the construction or reconstruction of which commences on or after July 8, 2005, shall achieve compliance with the provisions of this subpart immediately upon initial startup or January 3, 2007, whichever date is later. • §63.764 - General Standards o §63.764 (d)(2) -Each owner or operator of an area source not located in a UA plus offset and UC boundary (as defined in §63.761) shall comply with the provisions specified in paragraphs (d)(2(i) through (iii) of this section. • §63.764 (d)(2)(i) - Determine the optimum glycol circulation rate using the following equation: LO,,,. =1.15*3,0 gal TEG *(F*(1—O)� lb H2O ,24hr/day 1 Where: LopT = Optimal circulation rate, gal/hr. F = Gas Flowrate (MMSCF/D) Page 8 of 25 C _ .,. .,...... COLORADO Air Pollution Control Division Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado - I = Inlet water content (lb/MMSCF) O = Outlet water content (lb/MMSCF) 3.0 = The industry accepted rule of thumb for a TEG-to water ratio (gal TEG/lbH20) 1.15 = Adjustment factor included for a margin of safety. ■ §63.764 (d)(2)(ii) - Operate the TEG dehydration unit such that the actual glycol circulation rate does not exceed the optimum glycol circulation rate determined in accordance with paragraph (d)(2)(i) of this section. If the TEG dehydration unit is unable to meet the sales gas specification for moisture content using the glycol circulation rate determined in accordance with paragraph (d)(2)(i), the owner or operator must calculate an alternate circulation rate using GRI-GLYCalcTM, Version 3.0 or higher. The owner or operator must document why the TEG dehydration unit must be operated using the alternate circulation rate and submit this documentation with the initial notification in accordance with §63.775(c)(7). ■ §63.764 (d)(2)(iii) - Maintain a record of the determination specified in paragraph (d)(2)(ii) in accordance with the requirements in §63.774(f) and submit the Initial Notification in accordance with the requirements in §63.775(c)(7). If operating conditions change and a modification to the optimum glycol circulation rate is required,the owner or operator shall prepare a new determination in accordance with paragraph (d)(2)(i) or (ii) of this section and submit the information specified under §63.775(c)(7)(ii) through (v). • §63.774 - Recordkeeping Requirements o §63.774 (b) - Except as specified in paragraphs (c), (d), and (f) of this section, each owner or operator of a facility subject to this subpart shall maintain the records specified in paragraphs (b)(1) through (11) of this section: • §63.774 (b)(1) - The owner or operator of an affected source subject to the provisions of this subpart shall maintain files of all information (including all reports and notifications) required by this subpart. The files shall be retained for at least 5 years following the date of each occurrence, measurement, maintenance, corrective action, report or period. • §63.774 (b)(1)(i) - All applicable records shall be maintained in such a manner that they can be readily accessed. • §63.774 (b)(1)(ii) -The most recent 12 months of records shall be retained on site or shall be accessible from a central location by computer or other means that provides access within 2 hours after a request. • §63.774 (b)(1)(iii) - The remaining 4 years of records may be retained offsite. Page 9 of 25 C.C .,;(......r. COLORADO , �„ Air Pollution Control Division '�3ief 4. Department of Public Health Er Environment Dedicated to protecting and improving the health and environment of the people of Colorado • §63.774 (b)(1)(iv) - Records may be maintained in hard copy or computer-readable form including, but not limited to, on paper, microfilm, computer, floppy disk, magnetic tape, or microfiche. o §63.774 (f) - The owner or operator of an area source not located within a UA plus offset and UC boundary must keep a record of the calculation used to determine the optimum glycol circulation rate in accordance with §63.764(d)(2)(i) or §63.764(d)(2)(ii), as applicable. • §63.775 - Reporting Requirements o §63.775 (c) - Except as provided in paragraph (c)(8), each owner or operator of an area source subject to this subpart shall submit the information listed in paragraph (c)(1) of this section. If the source is located within a UA plus offset and UC boundary, the owner or operator shall also submit the information listed in paragraphs (c)(2) through (6) of this section. If the source is not located within any UA plus offset and UC boundaries, the owner or operator shall also submit the information listed within paragraph (c)(7). ■ §63.775 (c)(1) - The initial notifications required under §63.9(b)(2) not later than January 3, 2008. In addition to submitting your initial notification to the addressees specified under §63.9(a), you must also submit a copy of the initial notification to EPA's Office of Air Quality Planning and Standards. Send your notification via e-mail to CCG- ONG@EPA.GOV or via U.S. mail or other mail delivery service to U.S. EPA, Sector Policies and Programs Division/Coatings and Chemicals Group (E143-01), Attn: Oil and Gas Project Leader, Research Triangle Park, NC 27711. ■ §63.775 (c)(7) - The information listed in paragraphs (c)(1)(i) through (v) of this section. This information shall be submitted with the initial notification. • §63.775 (c)(7)(i) - Documentation of the source's location relative to the nearest UA plus offset and UC boundaries. This information shall include the latitude and longitude of the affected source; whether the source is located in an urban cluster with 10,000 people or more; the distance in miles to the nearest urbanized area boundary if the source is not located in an urban cluster with 10,000 people or more; and the names of the nearest urban cluster with 10,000 people or more and nearest urbanized area. • §63.775 (c)(7)(ii) - Calculation of the optimum glycol circulation rate determined in accordance with §63.764(d)(2)(i). • §63.775 (c)(7)(iii) - If applicable, documentation of the alternate glycol circulation rate calculated using GRI-GLYCalcTM, Version 3.0 or higher and documentation stating why the TEG dehydration unit must operate using the alternate glycol circulation rate. Page 10 of 25 --r...•� COLORADO Air Pollution Control Division Department of Pubitc Health El Environment Dedicated to protecting and improving the health and environment of the people of Colorado • §63.775 (c)(7)(iv) - The name of the manufacturer and the model number of the glycol circulation pump(s) in operation. • §63.775 (c)(7)(v) - Statement by a responsible official, with that official's name, title, and signature, certifying that the facility will always operate the glycol dehydration unit using the optimum circulation rate determined in accordance with §63.764(d)(2)(i) or $63.764(d)(2)(ii), as applicable. a §63.775 (f) - Notification of process change. Whenever a process change is made, or a change in any of the information submitted in the Notification of Compliance Status Report, the owner or operator shall submit a report within 180 days after the process change is made or as a part of the next Periodic Report as required under paragraph (e)of this section, whichever is sooner. The report shall include: • §63.775 (f)(1) - A brief description of the process change; • §63.775 (f)(2) -A description of any modification to standard procedures or quality assurance procedures • §63.775 (f)(3) - Revisions to any of the information reported in the original Notification of Compliance Status Report under paragraph (d) of this section; and • §63.775 (f)(4) - Information required by the Notification of Compliance Status Report under paragraph (d) of this section for changes involving the addition of processes or equipment. 20. The reciprocating compressors driven by Points 001-004 are subject to the New Source Performance Standards requirements of Regulation No. 6, Part A, Subpart OOOO, Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution including, but not limited to, the following: • §60.5385(a)- Owner or operator must replace the reciprocating compressor rod packing according to either paragraph $60.5385(a)(1) or (2). (1) §60.5385(a)(1) - Before the compressor has operated for 26,000 hours. The number of hours of operation must be continuously monitored beginning upon initial startup of your reciprocating compressor affected facility, or October 15, 2012, or the date of the most recent reciprocating compressor rod packing replacement, whichever is later. (2) §60.5385(a)(2) - Prior to 36 months from the date of the most recent rod packing replacement, or 36 months from the date of startup for a new reciprocating compressor for which the rod packing has not yet been replaced. • §60.5410 - Owner or operator must demonstrate initial compliance with the standards as detailed in §60.5410(c). • §60.5415 - Owner or operator must demonstrate continuous compliance with the standards as detailed in §60.5415(c). • §60.5420 - Owner or operator must comply with the notification, reporting, and recordkeeping requirements as specified in §60.5420(a), §60.5420(b)(1), §60.5420(b)(4), and §60.5420(c)(3). Page 11 of 25 le , COLORADO Air Pollution Control Division Department of Public Health El Environment Dedicated to protecting and improving the health and environment of the people of Colorado OPERATING Et MAINTENANCE REQUIREMENTS 21. Points 001-005: Upon startup of these points, the applicant shall follow the operating and maintenance (OEtM) plan and record keeping format approved by the Division, in order to demonstrate compliance on an ongoing basis with the requirements of this permit. Revisions to your OEtM plan are subject to Division approval prior to implementation. (Reference: Regulation No. 3, Part B, Section III.G.7.) COMPLIANCE TESTING AND SAMPLING Initial Testing Requirements 22. This source is not required to conduct initial testing, unless otherwise directed by the Division or other state or federal requirement. Periodic Testing Requirements 23. Points 001-004: Each engine is subject to the periodic testing requirements as specified in the operating and maintenance (OEtM) plan as approved by the Division. Revisions to your O&M plan are subject to Division approval. Replacements of this unit completed as Alternative Operating Scenarios may be subject to additional testing requirements as specified in Attachment A. 24. Point 005: The owner or operator shall complete an extended wet gas analysis prior to the inlet of the TEG dehydrator on an annual basis. Results of the wet gas analysis shall be used to calculate emissions of criteria pollutants and hazardous air pollutants per this permit. ADDITIONAL REQUIREMENTS 25. All previous versions of this permit are cancelled upon issuance of this permit. 26. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Regulation Number 3, Part A, II.C.) • Annually by April 30th whenever a significant increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change in actual emissions of five (5) tons per year or more, above the level reported on the last APEN; or For volatile organic compounds (VOC) and nitrogen oxides sources (NOr) in ozone nonattainment areas emitting less than 100 tons of VOC or NO. per year, a change in annual actual emissions of one (1) ton per year or more or five percent, whichever is greater, above the level reported on the last APEN; or Page 12 of 25 C _r,,:= . COLORADO 40 ____ Air Pollution Control Division Department of Public Health b Environment Dedicated to protecting and reproving the health and environment of the people of Colorado For sources emitting 100 tons per year or more, a change in actual emissions of five percent or 50 tons per year or more, whichever is less, above the level reported on the last APEN submittedt; or For any non-criteria reportable pollutant: If the emissions increase by 50% or five (5) tons per year, whichever is less, above the level reported on the last APEN submitted to the Division. • Whenever there is a change in the owner or operator of any facility, process, or activity; or • Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or • Whenever a permit limitation must be modified; or • No later than 30 days before the existing APEN expires. • ' Within 14 calendar days of commencing operation of a permanent replacement engine under the alternative operating scenario outlined in this permit as Attachment A. The APEN shall include the specific manufacturer, model and serial number and horsepower of the permanent replacement engine, the appropriate APEN filing fee and a cover letter explaining that the permittee is exercising an alternative-operating scenario and is installing a permanent replacement engine. 27. This source is subject to the provisions of Regulation Number 3, Part C, Operating Permits (Title V of the 1990 Federal Clean Air Act Amendments). The provisions of this construction permit must be incorporated into the Operating Permit. The application for the modification to the Operating Permit is due within one year of the issuance of this permit. 28. The requirements of Colorado Regulation Number 3, Part D shall apply at such time that any stationary source or modification becomes a major stationary source or major modification solely by virtue of a relaxation in any enforceable limitation that was established after August 7, 1980, on the capacity of the source or modification to otherwise emit a pollutant such as a restriction on hours of operation (Reference: Regulation Number 3, Part D, V.A.7.B). With respect to this Condition, Part D requirements may apply to future modifications if emission limits are modified to equal or exceed the following threshold levels: Emissions - tons per year Equipment AIRS Equipment Pollutant Current ID Point Desa-iption Threshold Permit Limit C-193 0O1 Engine NOx 25 11.4 C-194 0O2 Engine NOx 25 11.4 C-195 O03 Engine NOx 25 11.4 Page 13 of 25 44,10-000O C" Air PollLutionOR Control Division {OPH HI Department of Public Health Et Environment Dedicated to protecting and improving the health and environment of the people of Colorado C-196 004 Engine NOx 25 11.4 GENERAL TERMS AND CONDITIONS 29. This permit and any attachments must be retained and made available for inspection upon request. The permit may be reissued to a new owner by the APCD as provided in AQCC Regulation Number 3, Part B, Section II.B. upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 30. If this permit specifically states that final authorization has been granted, then the remainder of this condition is not applicable. Otherwise, the issuance of this construction permit does not provide "final" authority for this activity or operation of this source. Final authorization of the permit must be secured from the APCD in writing in accordance with the provisions of 25-7-114.5(12)(a) C.R.S. and AQCC Regulation Number 3, Part B, Section III.G. Final authorization cannot be granted until the operation or activity commences and has been verified by the APCD as conforming in all respects with the conditions of the permit. Once self-certification of all points has been reviewed and approved by the Division, it will provide written documentation of such final authorization. Details for obtaining final authorization to operate are located in the Requirements to Self-Certify for Final Authorization section of this permit. 31. This permit is issued in reliance upon the accuracy and completeness of information supplied by the owner or operator and is conditioned upon conduct of the activity, or construction, installation and operation of the source, in accordance with this information and with representations made by the owner or operator or owner or operator's agents. It is valid only for the equipment and operations or activity specifically identified on the permit. 32. Unless specifically stated otherwise, the general and specific conditions contained in this permit have been determined by the APCD to be necessary to assure compliance with the provisions of Section 25-7-114.5(7)(a), C.R.S. 33. Each and every condition of this permit is a material part hereof and is not severable. Any challenge to or appeal of a condition hereof shall constitute a rejection of the entire permit and upon such occurrence, this permit shall be deemed denied ab initio. This permit may be revoked at any time prior to self-certification and final authorization by the Air Pollution Control Division (APCD) on grounds set forth in the Colorado Air Quality Control Act and regulations of the Air Quality Control Commission (AQCC), including failure to meet any express term or condition of the permit. If the Division denies a permit, conditions imposed upon a permit are contested by the owner or operator, or the Division revokes a permit, the owner or operator of a source may request a hearing before the AQCC for review of the Division's action. 34. Section 25-7-114.7(2)(a), C.R.S. requires that all sources required to file an Air Pollution Emission Notice (APEN) must pay an annual fee to cover the costs of inspections and administration. If a source or activity is to be discontinued, the owner must notify the Page 14 of 25 C ..,,,,,.....,...E COLORADO 4110 -"44,011" Air Pollution Control Division Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado Division in writing requesting a cancellation of the permit. Upon notification, annual fee billing will terminate. 35. Violation of the terms of a permit or of the provisions of the Colorado Air Pollution Prevention and Control Act or the regulations of the AQCC may result in administrative, civil or criminal enforcement actions under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122.1 (criminal penalties), C.R.S. By: Elie Chavez Permit Engineer Permit History Issuance Date Description Point 001-004: Modification to split combined emission and process limitations into individual limitations applicable to each engine separately. Issuance 3 This Issuance Point 006: Removed from permit as point is below reporting thresholds. Point 007: Removed from permit as point was never constructed. Issuance 2 This Issuance Modification to point 006 (fugitives) for the actual hard count performed. Also update point 005 to allow for minor design changes for the dehydrator control device. Updated permit to reflect self-certification already submitted. Issuance 1 3/6/2013 Issued to DCP Midstream, LP. Page 15 of 25 COLORADO �. � Aiz Pollution Control Division �ii�� Deparhnent ot Pubdc F{ea(th b Envlronment Dedicated to protecting and improving the health and environment of the people of Colorada Notes to Permit Holder at the time of this permit issuance: 1) The permit holder is required to pay fees for the processing time for this permit. An invoice for these fees will be issued after the permit is issued. The permit holder shall pay the invoice within 30 days of receipt of the invoice. Failure to pay the invoice will result in revocation of this permit. (Regulation Number 3, Part A, Section VI.B.) 2) The production or raw material processing limits and emission limits contained in this permit are based on the consumption rates requested in the permit application. These limits may be revised upon request of the owner or operator providing there is no exceedance of any specific emission controt regulation or any ambient air quality standard. A revised air pollution emission notice (APEN) and complete application form must be submitted with a request for a permit revision. 3) This source is subject to the Common Provisions Regulation Part II, Subpart E, Affirmative Defense Provision for Excess Emissions During Malfunctions. The owner or operator shall notify the Division of any malfunction condition which causes a violation of any emission limit or limits stated in this permit as soon as possible, but no later than noon of the next working day, followed by written notice to the Division addressing all of the criteria set forth in Part II.E.1 of the Common Provisions Regulation. See: https://www.colorado.gov/pacific/cdphe/aqcc-regs 4) The following emissions of non-criteria reportable air pollutants are estimated based upon the process limits as indicated in this permit. This information is listed to inform the operator of the Division's analysis of the specific compounds emitted if the source(s) operate at the permitted limitations. Are the CAS # Uncontrolled emissions Controtled AIRS Emission Rate reportable Emission Rate Point Pollutant (lbtyr) ? (Ib/yr) Formaldehyde 50000 1,622 Yes 389 Acetaldehyde 75070 323 Yes 162 Acrolein 107028 305 Yes 152 Methanol 67561 355 Yes 177 001 Benzene 71432 183 No 92 Toluene 108883 65 No 32 Xylenes 1330207 23 No 11 1,3-Butadiene 106990 77 No 38 Formaldehyde 50000 1,622 Yes 389 Acetaldehyde 75070 323 Yes 162 002 Acrolein 107028 305 Yes 152 Methanol 67561 355 Yes 177 Page 16 of 25 �.,. , COLORADO a 444l Air Pollution Control Division I Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado Benzene 71432 183 No 92 Toluene 108883 65 No 32 Xylenes 1330207 23 No 11 1,3-Butadiene 106990 77 No 38 Formaldehyde 50000 1,622 Yes 389 Acetaldehyde 75070 323 Yes 162 Acrolein 107028 305 Yes 152 Methanol 67561 355 Yes 177 003 Benzene 71432 183 No 92 Toluene 108883 65 No 32 Xylenes 1330207 23 No 11 1,3-Butadiene 106990 77 No 38 Formaldehyde 50000 1,622 Yes 389 Acetaldehyde 75070 323 Yes 162 Acrolein 107028 305 Yes 152 Methanol 67561 355 Yes 177 004 Benzene 71432 183 No 92 Toluene 108883 65 No 32 Xylenes 1330207 23 No 11 1,3-Butadiene 106990 77 No 38 Benzene 71432 158,460 Yes 9,179 Toluene 108883 198,589 Yes 11,634 005 Ethylbenzene 100414 8,581 Yes 508 Xylenes 1330207 96,959 Yes 5,757 n-Hexane 110543 87,160 Yes 3,053 Note: All non-criteria reportable pollutants in the table above with uncontrolled emission rates above 250 pounds per year (lb/yr) are reportable and may result in annual emission fees based on the most recent Air Pollution Emission Notice. 5) The emission levels contained in this permit are based on the following emission factors: Points 001-004: Emission Factors - Emission Factors - Uncontrolled Controlled CAS Pollutant Ib/MMBtu g/bhp-hr lb/MMBtu g/bhp-hr N0x 3.6669 13.1000 0.1400 0.5000 Page 17 of 25 •r-� COLORADO Air Pollution Control Division COPHE Department of Public Health b Environment Dedicated to protecting and improving the health and environment of the people of Colorado Emission Factors - Emission Factors - Uncontrolled Controlled CAS Pollutant lb/MMBtu g/bhp-hr lb/MMBtu g/bhp-hr CO 3.2750 11.7000 0.2799 1.0000 VOC 0.4199 1.5000 0.1959 0.7000 5000 Formaldehyde 0.0140 0.0500 0.0034 0.0120 67561 Methanol 0.0031 0.0109 0.0015 0.0055 75070 Acetaldehyde 0.0028 0.0100 0.0014 0.0050 107028 Acrolein 0.0026 0.0094 0.0013 0.0047 Emission factors are based on a Brake-Specific Fuel Consumption Factor of 7876 Btu/hp-hr, a site-rated horsepower value of 1680, and a fuel heat value of 1000 Btu/scf. Emission Factor Sources: CAS Pollutant Uncontrolled EF Source Controlled EF Source NOx Manufacturer's specifications Manufacturer's specifications CO Manufacturer's specifications Manufacturer's specifications VOC Manufacturer's specifications Manufacturer's specifications 5000 Formaldehyde Manufacturer's specifications Manufacturer's specifications 67561 Methanol AP-42; Table 3.2-3 (7/2000); Manufacturer's Natural Gas specifications 75070 Acetaldehyde AP-42; Table 3.2-3 (7/2000); Manufacturer's Natural Gas specifications 107028 Acrolein AP-42; Table 3.2-3 (7/2000); Manufacturer's Natural Gas specifications Point 005: The emission levels contained in this permit are based on information provided in the application and the GRI GlyCalc 4.0 model. Controlled emissions are based on 99% recycle of the flash tank emissions with 1% allowable VRU downtime and 95% control of the still vent vapors. During VRU downtime, the flash tank stream is routed to the enclosed combustor. Optimal recirculation rate per MACT HH (63.74(d)(2)(i)) is based on the following information submitted with the application: F = 50MMscfd; I = 121.8 lb/MMscf; and O = 6.7 lb/MMscf. 6) In accordance with C.R.S. 25-7-114.1, each Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five years from the date it was received by the Division. A revised APEN shall be submitted no later than 30 days before the five-year term expires. Please Page 18 of 25 C �,Y,e.,.�� I C O I O R A D O Air Pollution Control Division Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado refer to the most recent annual fee invoice to determine the APEN expiration date for each emissions point associated with this permit. For any questions regarding a specific expiration date call the Division at (303)-692-3150. 7) Points 001 through 004: Each engine is subject to 40 CFR, Part 60, Subpart JJJJ—Standards of Performance for Stationary Spark Ignition Internal Combustion Engines (See January 18, 2008 Federal Register posting - effective March 18, 2008). This rule has not yet been incorporated into Colorado Air Quality Control Commission's Regulation No. 6. A copy of the complete subpart is available on the EPA website at: http://www.epa.aov/ttn/atw/area/fr18ja08.pdf 8) Points 001 through 004: Each engine is subject to 40 CFR, Part 63, Subpart ZZZZ - National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion Engines. (See January 18, 2008 Federal Register posting - effective March 18, 2008). The January 18, 2008 amendments to include requirements for area sources and engines < 500 hp located at major sources have not yet been incorporated into Colorado Air Quality Control Commission's Regulation No. 8. A copy of the complete subpart is available on the EPA website at: http://www.epa.govittn/atw/area/fr18ja08.pdf Additional information regarding area source standards can be found on the EPA website at: http://www.epa.Rovittn/atw/area/arearules.html 9) This facility is classified as follows: Applicable Status Requirement Major Source: VOC Operating Permit Synthetic Minor Source: CO, NOx, Benzene, Toluene, Xylenes, n- Hexane, and Total HAPs PSD Synthetic Minor Source: NOx, CO, VOC NANSR Major Source: VOC Synthetic Minor Source: NOx MACT HH Area Source Requirements MACT ZZZZ Area Source Requirements 10) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be found at the website listed below: http://www.ecfr.gov/ Page 19 of 25 COLORADO Air Pollution Control Division Department of Pubkc Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado Part 60: Standards of Performance for New Stationary Sources NSPS 60.1-End Subpart A - Subpart UUUU NSPS Part 60, Appendixes Appendix A - Appendix I Part 63: National Emission Standards for Hazardous Air Pollutants for Source Categories MACT 63.1-63.599 Subpart A - Subpart Z MACT 63.600-63.1199 Subpart AA - Subpart DDD MACT '63.1200-63.1439 Subpart EEE - Subpart PPP MACT 63.1440-63.6175 Subpart QQQ- Subpart YYYY MACT 63.6580-63.8830 Subpart ZZZZ - Subpart MMMMM MACT 63.8980-End Subpart NNNNN - Subpart XXXXXX Page 20 of 25 C ._ ,,,r.....r.v.r. ` � COLORADO Air Pollution Control Division Department or Publ,c Health fr Environment Dedicated to protecting and improving the health and environment of the people of Colorado ATTACHMENT A: ALTERNATIVE OPERATING SCENARIOS RECIPROCATING INTERNAL COMBUSTION ENGINES October 12, 2012 2. Alternative Operating Scenarios The following Alternative Operating Scenario (AOS)for the temporary and permanent replacement of natural gas fired reciprocating internal combustion engines has been reviewed in accordance with the requirements of Regulation No. 3., Part A, Section IV.A, Operational Flexibility-Alternative Operating Scenarios, Regulation No. 3, Part B, Construction Permits, and Regulation No. 3, Part D, Major Stationary Source New Source Review and Prevention of Significant Deterioration, and it has been found to meet all applicable substantive and procedural requirements.This permit incorporates and shall be considered a Construction Permit for any engine replacement performed in accordance with this AOS, and the owner or operator shall be allowed to perform such engine replacement without applying for a revision to this permit or obtaining a new Construction Permit. 2.1 Engine Replacement The following AOS is incorporated into this permit in order to deal with an engine breakdown or periodic routine maintenance and repair of an existing onsite engine that requires the use,of either a temporary or permanent replacement engine. "Temporary" is defined as in the same service for 270 operating days or less in any 12 month period. "Permanent" is defined as in the same service for more than 270 operating days in any 12 month period. The 270 days is the total number of days that the engine is in operation. If the engine operates only part of a day, that day shall count as a single day towards the 270 day total. The compliance demonstrations and any periodic monitoring required by this AOS are in addition to any compliance demonstrations or periodic monitoring required by this permit. Alt replacement engines are subject to all federally applicable and state-only requirements set forth in this permit (including monitoring and record keeping). The results of all tests and the associated calculations required by this AOS shall be submitted to the Division within 30 calendar days of the test or within 60 days of the test if such testing is required to demonstrate compliance with NSPS or MACT requirements. Results of all tests shall be kept on site for five (5)years and made available to the Division upon request. The owner or operator shall maintain a log on-site and contemporaneously record the start and stop date of any engine replacement, the manufacturer, date of manufacture, model number, horsepower, and serial number of the engine(s) that are replaced during the term of this permit, and the manufacturer, model number, horsepower, and serial number of the replacement engine. In addition to the log, the owner or operator shall maintain a copy of all Applicability Reports required under section 2.1.2 and make them available to the Division upon request. 2.1.1 The owner or operator may temporarily replace an existing engine that is subject to the emission limits set forth in this permit with an engine that is of the same manufacturer, model, and horsepower or a different manufacturer, model, or horsepower as the existing engine without modifying this permit, so long as the temporary replacement engine complies with all permit limitations and other requirements applicable to the existing engine. Measurement of emissions from the temporary replacement engine shall be made as set forth in section 2.2. Page 21 of 25 C ._ ,e,..... . COLORADO Air Pollution Control Division Ititt Department of Pub&c Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado 2.1.2 The owner or operator may permanently replace the existing engine with another engine with the same manufacturer, model, and horsepower engines without modifying this permit so long as the permanent replacement engine complies with all permit limitations and other requirements applicable to the existing engine as well as any new applicable requirements for the replacement engine. Measurement of emissions from the permanent replacement engine and compliance with the applicable emission limitations shall be made as set forth in section 2.2. The AOS cannot be used for the permanent replacement of an entire engine at any source that is currently a major stationary source for purposes of Prevention of Significant Deterioration or Non-Attainment Area New Source Review ("PSD/NANSR") unless the existing engine has emission limits that are below the significance levels in Reg 3, Part D, II.A.44. An Air Pollutant Emissions Notice (APEN) that includes the specific manufacturer, model and serial number and horsepower of the permanent replacement engine shall be filed with the Division for the permanent replacement engine within 14 calendar days of commencing operation of the replacement engine. The APEN shall be accompanied by the appropriate APEN filing fee, a cover letter explaining that the owner or operator is exercising an alternative operating scenario and is installing a permanent replacement engine, and a copy of the relevant Applicability Reports for the replacement engine. Example Applicability Reports can be found at www.colorado.gov/cdphe/air/AOS. This submittal shall be accompanied by a certification from the Responsible Official indicating that "based on the information and belief formed after reasonable inquiry, the statements and information included in the submittal are true, accurate and complete". This AOS cannot be used for permanent engine replacement of a grandfathered or permit exempt engine or an engine that is not subject to emission limits. The owner or operator shall agree to pay fees based on the normal permit processing rate for review of information submitted to the Division in regard to any permanent engine replacement. Nothing in this AOS shall preclude the Division from taking an action, based on any permanent engine replacement(s), for circumvention of any state or federal PSD/NANSR requirement. Additionally, in the event that any permanent engine replacement(s)constitute(s)a circumvention of applicable PSD/NANSR requirements, nothing in this AOS shall excuse the owner or operator from complying with PSD/NANSR and applicable permitting requirements. 2.2 Portable Analyzer Testing Note: In some cases there may be conflicting and/or duplicative testing requirements due to overlapping Applicable Requirements. In those instances, please contact the Division Field Services Unit to discuss streamlining the testing requirements. Note that the testing required by this Condition may be used to satisfy the periodic testing requirements specified by the permit for the relevant time period (i.e. if the permit requires quarterly portable analyzer testing, this test conducted under the AOS will serve as the quarterly test and an additional portable analyzer test is not required for another three months). The owner or operator may conduct a reference method test, in lieu of the portable analyzer test required by this Condition, if approved in advance by the Division. The owner or operator shall measure nitrogen oxide (NOX) and carbon monoxide (CO) emissions in the exhaust from the replacement engine using a portable flue gas analyzer within seven (7) calendar days of commencing operation of the replacement engine. Page 22 of 25 �•c COLORADO is4440 Air Pollution Control Division Department of Public Health b Environment Dedicated to protecting and improving the health and environment of the people of Colorado All portable analyzer testing required by this permit shall be conducted using the Division's Portable Analyzer Monitoring Protocol (ver March 2006 or newer) as found on the Division's web site at: www.colorado.gov/cdphe/portable-analyzer-monitoring-protocol Results of the portable analyzer tests shall be used to monitor the compliance status of this unit. For comparison with an annual (tons/year)or short term (lbs/unit of time)emission limit, the results of the tests shall be converted to a lb/hr basis and multiplied by the allowable operating hours in the month or year (whichever applies) in order to monitor compliance. If a source is not limited in its hours of operation the test results will be multiplied by the maximum number of hours in the month or year (8760), whichever applies. For comparison with a short-term limit that is either input based (lb/mmBtu), output based (g/hp-hr) or concentration based (ppmvd @ 15% O2) that the existing unit is currently subject to or the replacement engine will be subject to, the results of the test shall be converted to the appropriate units as described in the above- mentioned Portable Analyzer Monitoring Protocol document. If the portable analyzer results indicate compliance with both the NOX and CO emission limitations, in the absence of credible evidence to the contrary, the source may certify that the engine is in compliance with both the NOX and CO emission limitations for the relevant time period. Subject to the provisions of C.R.S. 25-7-123.1 and in the absence of credible evidence to the contrary, if the portable analyzer results fail to demonstrate compliance with either the NOX or CO emission limitations, the engine will be considered to be out of compliance from the date of the portable analyzer test until a portable analyzer test indicates compliance with both the NOX and CO emission limitations or until the engine is taken offline. 2.3 Applicable Regulations for Permanent Engine Replacements 2.3.1 Reasonably Available Control Technology (RACT): Reg 3, Part B § III.D.2 All permanent replacement engines that are located in an area that is classified as attainment/maintenance or nonattainment must apply Reasonably Available Control Technology (RACT)for the pollutants for which the area is attainment/maintenance or nonattainment. Note that both VOC and NOX are precursors for ozone. RACT shall be applied for any level of emissions of the pollutant for which the area is in attainment/maintenance or nonattainment, except as follows: In the Denver Metropolitan PM10 attainment/maintenance area, RACT applies to PM10 at any level of emissions and to NOX and SO2, as precursors to PM10, if the potential to emit of NOX or SO2 exceeds 40 tons/yr. For purposes of this AOS, the following shall be considered RACT for natural gas fired reciprocating internal combustion engines: VOC: The emission limitations in NSPS JJJJ CO: The emission limitations in NSPS JJJJ NOX: The emission limitations in NSPS JJJJ 5O2: Use of natural gas as fuel PM10: Use of natural gas as fuel As defined in 40 CFR Part 60 Subparts GG (§60.331)and 40 CFR Part 72 (§72.2), natural gas contains 20.0 grains or less of total sulfur per 100 standard cubic feet. Page 23 of 25 C ., .y......r.. COLORADO � Air Pollution Control Division �iir/ Department of Public Health 6 Environment Dedicated to protecting and improving the health and environment of the people of Colorado 2.3.2 Control Requirements and Emission Standards: Regulation No. 7, Sections XVI. and XVII.E (State-Only conditions). Control Requirements: Section XVI Any permanent replacement engine located within the boundaries of an ozone nonattainment area is subject to the applicable control requirements specified in Regulation No. 7, section XVI, as specified below: Rich burn engines with a manufacturer's design rate greater than 500 hp shall use a non-selective catalyst and air fuel controller to reduce emission. Lean burn engines with a manufacturer's design rate greater than 500 hp shall use an oxidation catalyst to reduce emissions. The above emission control equipment shall be appropriately sized for the engine and shall be operated and maintained according to manufacturer specifications. The source shall submit copies of the relevant Applicability Reports required under Condition 2.1.2. Emission Standards: Section XVII.E- State-only requirements Any permanent engine that is either constructed or relocated to the state of Colorado from another state, after the date listed in the table below shall operate and maintain each engine according to the manufacturer's written instructions or procedures to the extent practicable and consistent with technological limitations and good engineering and maintenance practices over the entire life of the engine so that it achieves the emission standards required in the table below: Construction or Emission Standards in G/hp-hr Max Engine HP Relocation Date X NO CO VOC January 1, 2008 2.0 4.0 1.0 100<Hp<500 January 1, 2011 1.0 2.0 0.7 July 1, 2007 2.0 4.0 1.0 500≤Hp July 1, 2010 1.0 2.0 0.7 The source shall submit copies of the relevant Applicability Reports required under Condition 2.1.2. 2.3.3 NSPS for stationary spark ignition internal combustion engines: 40 CFR Part 60, Subpart JJJJ A permanent replacement engine that is manufactured on or after 7/1/09 for emergency engines greater than 25 hp, 7/1/2008 for engines less than 500 hp, 7/1/2007 for engines greater than or equal to 500 hp except for lean burn engines greater than or equal to 500 hp and less than 1,350 hp, and 1/1/2008 for lean burn engines greater than or equal to 500 hp and less than 1,350 hp are subject to the requirements of 40 CFR Part 60, Subpart JJJJ. An analysis of applicable monitoring, recordkeeping, and reporting requirements for the permanent engine replacement shall be included in the Applicability Reports required under Condition 2.1.2. Any testing required by the NSPS is in addition to that required by this AOS. Note that the initial test required by NSPS Subpart JJJJ can serve as the testing required by this AOS under Condition 2.2, if approved in advance by the Division, provided that such test is conducted within the time frame specified in Condition 2.2. Note that under the provisions of Regulation No. 6. Part B, section I.B. that Relocation of a source from outside of the State of Colorado into the State of Colorado is considered to be a new source, subject to the requirements Page 24 of 25 C _x*I%c- COLORADO Air Pollution Control Division I Department of Public Health 6 Environment Dedicated to protecting and improving the health and environment of the people of Colorado of Regulation No. 6 (i.e., the date that the source is first relocated to Colorado becomes equivalent to the manufacture date for purposes of determining the applicability of NSPS JJJJ requirements). However, as of October 1, 2011 the Division has not yet adopted NSPS JJJJ. Until such time as it does, any engine subject to NSPS will be subject only under Federal law. Once the Division adopts NSPS JJJJ, there will be an additional step added to the determination of the NSPS. Under the provisions of Regulation No. 6, Part B, 5 I.B (which is referenced in Part A), any engine relocated from outside of the State of Colorado into the State of Colorado is considered to be a new source, subject to the requirements of NSPS JJJJ. 2.3.4 Reciprocating internal combustion engine (RICE)MACT: 40 CFR Part 63, Subpart ZZZZ A permanent replacement engine located at either an area or major source is subject to the requirements in 40 CFR Part 63, Subpart ZZZZ. An analysis of the applicable monitoring, recordkeeping, and reporting requirements for the permanent engine replacement shall be included in the Applicability Reports required under Condition 2.1.2. Any testing required by the MACT is in addition to that required by this AOS. Note that the initial test required by the MACT can serve as the testing required by this AOS under Condition 2.2, if approved in advance by the Division, provided that such test is conducted within the time frame specified in Condition 2.2. 2.4 Additional Sources The replacement of an existing engine with a new engine is viewed by the Division as the installation of a new emissions unit, not "routine replacement" of an existing unit. The AOS is therefore essentially an advanced construction permit review. The AOS cannot be used for additional new emission points for any site; an engine that is being installed as an entirely new emission point and not as part of an AOS-approved replacement of an existing onsite engine has to go through the appropriate Construction/Operating permitting process prior to installation. Page 25 of 25 PRELIMINARY ANALYSIS-PROJECT SUMMARY Project Details For Division Use Only Review Engineer: Elie Chavez Package#: 436515 Received Date: 10/9/2020 Review Start Date: 10/13/2020. Section 01-Facility Information Company Name: DCPOperating Company,LP Quadrant Section Township Range County AIRS ID: 123 NWNW 27 6N 63 Plant AIRS ID: 9950 Facility Name: Wells Ranch Compressor Station.. Physical Address/Location: County: Weld County Type of Facility: Natural Gas Compressor Station What industry segment?Oil&Natural Gas Production&Processing Is this facility located in a NAAQS non-attainment area? Yes If yes,for what pollutant? Ozone(NOx&VOC) Section 02-Emissions Units In Permit Application Leave Blank-For Division Use Only AIRs Point# Permit# Emissions (Leave blank unless Issuance Self Cert Engineering (Leave blank unless APCD Emissions Source Type Equipment Name Control? APCD has already # Required? Action Remarks has already assigned) assigned) Permit 001 Natural Gas RICE C-193 Yes 12WE2039 3 > No Modification Permit 002 Natural Gas RICE C-194 Yes 12WE2039 3 No Modification Permit 003 Natural Gas RICE C-195 Yes 12WE2039 3' No Modification Permit 004 Natural Gas RICE C-196 Yes 12WE2039 3 No Modification Section 03-Description of Project Modification to split combined engine emissions and throughput limits intoseparate limits for each engine individually(Point 001-004).Additional request to remove all permit limitations and conditions related to fugitive emissions(Point 006)and engine C-197(Point 007),pursuant to cancellation requests received 5/1/2015 and 4/28/2017,respectively.Fugitive emissions were decreased to below APEN reporting thresholds via the use of EPA's Protocol for Equipment Leak Emission Estimates(EPA-453/R-95-017)Table 2-8,as allowed for under Colorado Regulation No.7,Part D,Section II.E.2.Engine C-197 was never constructed. Sections 04,05&06-For Division Use Only Section 04-Public Comment Requirements Is Public Comment Required? Yes If yes,why? Requesting Synthetic Minor Permit Section 05-Ambient Air Impact Analysis Requirement Was a quantitative modeling analysis required? No If yes,for what pollutants? If yes,attach a copy of Technical Services Unit modeling results summary. Section 06-Facility-Wide Stationary Source Classification Is this stationary source a true minor? No Is this stationary source a synthetic minor? Yes If yes,indicate programs and which pollutants: SO2 NOx CO VOC PM2.5 PM10 TSP HAPs Prevention of Significant Deterioration(PSD) E )_-1 L D Title V Operating Permits(OP) ,r_I (✓ El El ❑ I DI Non-Attainment New Source Review(NANSR) i_E Colorado Air Permitting Project •:f.Is this stationary source a major source? : a;m`., ;,,;.� y%i.� If yes,indicate programs and which pollutants: SO2 NOx Co VOC PIv12.5 PM10 TSP HAPs Prevention of Significant Deterioration(PSD) LJULJULI U Title V Operating Permits(op) LILIULILJULEU Non-Attainment New Source Review(NANSR) [ U RICE Emissions Inventory. Section 01-Admimtrauve Information 'Facility AIfts ID: 123 9950 001. County Plant Point Section 02-Equipment Description Details One fi(Waukesha,Model L2044GSI,Serial Number S283701686,natural gas-fired,turbo- charged, 4SRB reciprocating intemal combustion enema,site rated at 1680 horsepower at 0200 RPM.This Detailed Emissions engine shelf be equipped with selective gouty-tic reduction(NSCR)system and duel ratio Unit Description: contras This emission unit will be used for natural g ompressian Emission Control this engine will be equipped with anonselecnve catalytic reductionoystem lsSCRlsnd air-fuel Device Description ratio mntral. - y _ Requested NOx 96.18% Control Efficiency%: Requested VOC Control Efficiency%: 53.30%: Requested CO Control Efficiency 99: 91.45% Requested HCHO Control Efficiency%: 76.00'/ Requested Other HAP Control Efficiency%: 5Q00% Engine Manufacture Date: Jan-1z Manufacturer Waukesha Model Number. .12044 GSI Serial Number: 5203201686 Engine Function fftrig Doming IMfg's Max.Rated Horsepower@ sea level: 1680 Horsepower used far calcuations:. 1680 BSCF @ 100%Load(btu/hp-hilt 7826 Sae-Rated BSCF @ 100%load(btu/hp-hrl: 2826 no Engine Type 4.$ f Aspiration Otherparameters Electrical Generator Max Site Rating(kw) 0 Requested Hours of Operation 8260 PTE Hours of Operation 8260 Actual Hours of Operation .8116 Section 03-Processing Rate information for Emissions Estimates Fuel Use Rate @ 100%Load = 's sct/hr ACTUAL Annual Fuel Consumption X650y0 MMscf/yr MAX POTENTIAL Annual Fuel Consumption MMscf/yr REQUESTED Annual Fuel Consumption =_✓MMscf/yr Requested Fuel Heating Value - 3000 biu/scf Actual Fuel Heating Value 1109 btu/sof Section 04-Emissions rectors&Methodologies Emission Factors SI RICE Engine Uncontrolled I Units Controlled I units Pollutant spume (Natural Gas Consumption) (Natural Gas Consumption] NO3 13.100 04344.1 .u.. Manufacturer CO 11,200 g/hp=Ffc, ..0 Manufacturer VOC 1:500 Manufacturer PM, - Ib/MMBTU Table 32-3 4-Stroke RIch.Burn Engines PM. b/MMBTU - - Table 323 4Stroke.Rich-Burn Engines 502 b/MMBTU Table 3.2-3:4-Stroke Rich-Burn Engines Formaldehyde S.000E.02 g/ly:ho Table 3.2-3:4-Stroke Rich-Burn Engines Acetaldehyde b/MMBTU roirc.E, :y Table 32-3:4-Stroke Rich-Burn Engines Acrolein b/MMBTU Ai V ff3lable 3.2-3:4-Stroke Rich-Burn Engines r Methanol b/MMBRJ 'F' 6Table 3.2-3:4-Stroke Elch-BurnEngines Benzene b/MMBTU : = k;'Table 3.23:4-Stroke Rlrlt-Bum Engines Toluene b/MM.BT.IR .Table 3.2-3:4-Stroke Rich-Bum Engines. Ethylbenzene b/MMB'EU.; - „+.:Table 3.23:4-Stroke RRh.Rurn Engines. %ylene _ b/M` 9.✓.Y:' *Table 3.2-3:4-Stroke Rich-Burn Engines n Hexane b/M` -"t-A 0,00,13.2 ke-?able 32-3:4-Stroke Rich-Burn Engines 2,2,4-TMP b/MM 0.090,- - 3.'P551 9.2-3,a-Stroke 0100RIM,BurnEngines 1,3.Butadiene b/M 3.3131 _ ,',1,Table 3.2-3:4-Stroke Rich-Burn Engirws Section OS-Emissions Inventory Potentialto Emit Actual Emissions Requested Permit Limits: Criteria Pollutants uncontrolled Uncontrolled Controlled Uncontrolled Cmorolhad (tons/year) (tons/year) (tons/year( (tons/year) (tons/yetaip NOx CO VOC PM00 10s _ ..t i.:l:! _.. PMzo n 1,3 1.12 _.._ SOZ ,. n.. 0.03 Potentialto Emit Actual Emissions Requested Permit LimitsHazardous Air Uncontrolled Uncontrolled Controlled Uncontrolled Conti-albeit (lb/Year) ribs/War) (II/year) Ilbs/year) Ilbshewl Formaldehyde =- 311 1G)2.2.a Acetaldehyde _ 3'ti 3e Acrolein =s _3 _ 101.2/ Methanol _.3 ...-to. - 334.23 Benzene Toluene ._ Ethylbenzene .3 1.82 gylene __ n-Hexane 2.2,4-TMP .: 1,3-Butadiene .. 12WE2039.CP3 RICE Emissions Inventory Section 06-Regulatory Analysis Regulatory Requirements Section II.A.1-Except as provided In paragraphs 2 through 6 below,no owner or operator of a source shall allow or Regulation cause the emission into the atmosphere of any air pollutant which is in excess of 20%opacity.This standard A based on 24 consecutive opacity readings taken at 15-second intervals forsix minutes.The approved reference test method for visible emissions measurement is EPA Method 9(40 CFR,Part 60,Appendix A(July,19921)in all subsections of Section II.A and B of this regulation. Section l.A-No person,wherever located,shall cause or allow the emission of odorous air contaminants from any . Regulation 2 single sourcesuch as to result in detectable odors which are measured in excess of the following limits:For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven(7)or mare volumes of odor free air. Part A-APEN Requirements Criteria Pollutants:For criteria pollutants,Air Pollutant Emission Notices are required for:each individual emission point in an attainment area with uncontrolled actual emissions of two tan per year ormore of any Individual criteria Regulation 3 pollutant(pollutants are not summed). Applicant is required tofile an APEN since emissions exceed 1 ton per year NOx and VOC. Part B—Construction Permit Exemptions Applicant is required to obtain a permit since uncontrolled VOC emissions from this facility are greater than the 2 TPY threshold(Regulation Number 3,Part B,Section II.0.3.a) Part E,Section LB:This engine has a design rate greater than 500 HP(reported as 1600 HP)and is located in the ozone n-attainment area.As a result,the engine is subject to the air pollution control technology requirements of Section I.B.1 for rich burn engines.The APEN submitted Indicates the engine Is equipped with an Air/fuel ratio controller and a non-selective catalytic reduction system to control emissions. Part E,Section l.O:This engine has a design rate greater than 500 HP(reported at 1680 HP),was constructed an or Regulation) after luly 1,2010 and,based on the APEN received with this application,has uncontrolled actual emissions greater than permitting thresholds.Aa a result,this engine is subject tothe July 1,2010 emission standards IAted in Table 1 of Section 1.0.2.6. Part E,Section ILA;This engine did not exist at a major source of NOx under the moderate non-attainment threshold of 100tons/year as of June 3,2016,nor did it exist at a major source of NOx under the serious non-attainment threshold of 50 tons/year as ofJanuary 27,2020.As such,this engine is not sablectto the requirements of Section IIA.,which only apply to engines located at major sources of NO5. This engine Issubjectta NIACr 2222 The facility is an area source of HAPs,so the engine is not subject to major soce requires.Since this engine h located at an area source of HAP emissions and commenced construction afterlune 12,2006,It is classified as a"New Stationary Rice."According to 463,6590(c)ll.l,new stationary RICE MSCPZ122 located at an area source"must meet the requirements of this part by meeting the requirements f40 CFR port60 subpart-Ilk far compression ignitfan engines oral,CFR port 60 subpariifii,,.farsparkignitiooengines.No further requirements apply far such engines under this port."As such,this engine meets the requirements of Subpart 71Z2 by complying with Subpart 1111. Is this engine subject to NSPS 11117 I I Thh engine commenced construction afterlune 12,2006,and it was manufactured afterluly 1,2007 NSP61J11 (460.4230(a)(4)H11.As a result;the engine A subject to the emission standards In NSP51111,as required by 460.4233(e). • 12WE2039.CP3 Section 02-Technical Analysis Notes .._...e..m_.......P. _.�......r, .. e -_.... .. ..... ..:...,.. ....... _ ....m.._.._ ...._...._.. • Section 08-Inventory SCC Coding and Emissions redone Uncontrolled Emissions AIRS Point# Process# BCC Cade Pollutant Factor Control% Onus 001 01 KA- titA Vm FM30 b/MMBtu PM2.5 b/MMBtu NOx b/MMBtu VOL -• b/MMBtu CO C b/MMBth 502 b/MMBtu Formaldehyde b/MMBtu Acetaldehyde . .• . . b/MMBtu Actolein b/MMBIu Methanol b/MMBtu Benzene v'C b/MMBtu Toluene . •• . . b/MMBtu Ethylbenzene . . biMMBN Xylene .. b/MMBtu n-Hexane b/MMBtu 2,2,4-TMP .. • . b/MMBtu 1,3.8utediene • 12WE2039.CP3 RICE Emissions inventory Section 01-Adminstrative Information • Facility Allis ID: 123 9950 002 County Plant Point Section 02-Equipment Description Details One(1)Waukesha,Model 1704465I,Serial Number 5283702571,natural gas-fired,turbo-charged, 4SRB reciprocating Internal combustion engine,site rated.at 1680 h rsepower at 1200 RPM.This • engineshali be equipped with -selective catalytic reduction(NSCR)system and air-fuel ratio Oetailad Emissions control.This emission unit will be used for natural gas compression. Unit Description: Emission Control This engine will be equipped with a non--selective catalytic reduction system(NSCR)and air-fuel Deviceeescription: ratio control. Requested NOx 96.38% Control Efficiency%: Requested VOC Control Efficiency 9: 53.31% Requested CO Control Efficiency 9: 91.45% Requested HCHD Control Efficiency 9: 76.00% Requested Other HAP Control Efficiency 9: 50.00% Engine Manufacture Date: Feb-13 • Manufacturer. Waukesha Model Number: L7044 G51 Serial Number 5283702571 Engine=unction ..Cotnpfl-4slb Jesting I Mfg's Max.Rated Horsepower @ sea level: 1600 Horsepower used forcalcuations: 1680 BSCF@100%Load(btu/hp.hr): 7876 Site-Rated B5CF @ 100%load(btu/hp-hr): 7876 Engine Type Aspiration other Parameters f.- Electrisl6enera[pr M.Site e Rating(kw) 0 Requested Hoots of Operation 8760 PTE Hours of Operation 8760 • Actual Hours of Operation 7924 Sectten03-Processing Rate Information for Emissions Estimates Fuel Use Rate @ 100%Lead -„f/hr ACTUAL Annual Fuel Consumption 94.55 MMscf/yr MAX POTENTIAL Annual Fuel Consumption MMzc₹/yr REQUESTED Annual Fuel Consumption MMscf/yr Requested Fuel Heating Value - " 1000 btu/scf Actual Fuel Heating Value 1109 btu/scf Section 04-Emissions Factors&Methodologies Emission Factors SI RICE Engine Uncontrolled I Units Controlled I Units Source Pollutant [Natural Gas Consumption) (Natural Gas Consumption) NOx 13.100 =..g'/hp hr Manufacturer ' CO Manufacturer VOC 0.500 g/hp-hr Manufacturer PM„ Ib/MMBTU Table 3.23:4-Stroke Ridh-B.,rn Engines PMso 6,/MMBTD Table 3.234-Stroke Rich-Burn Engines 502 Ib/MMBTU Table 3.28:4-Stroke Rich-Burn Engines Formaldehyde 463646472 gihphr Table 3.23:4Stroke lash um Engines Acetaldehyde .. ib/MMBTU -Table 3.2-3:4-Stroke Rich-Burn Engines Acrolein ib/MMBTU Table 3.23:4-Stroke Rich-Burn Engines Methanol lh/MMBTU Table 3.2-3:4-Stroke Rich-Burn-Engines Benzene IbIMMBTU - Table 3.23:4-Stroke Rich-Born Engines Toluene Ih/MMBTU Table 13-3'4-Stroke Rich-BumEngines Ethalbenzene 15/MMBTU Table 3.2-3:4-Stroke aloh-Buie Engines 4ylene 18/MMBTU :=Table 3.2-3:4-Stroke Rich-Burn Engines ndlexane Iti/MMBTU 6-Table 3.2.3:4-Stroke Rich-Burn Engines 2,2,4-TMP Ib/MMBTU n:V hie 3.2,3:4-Stroke Rich-Burn:Engines 1,3-Butadiene 3lb/MMBTU " #„zYBtile.3.233:45trake,RIch-Burn Engines Section OS-Emissions Inventory Potential to Emit Actual Emissions Requested Permit limits Criteria Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled (tons/year) (tons/year) (tons/year) (tans/year[ (tons/year) NOx ': CO VOC ,. -... PM„ _.. .. .... PMue 502 ...,. ... • Air Potential to Emit Actual Emissions Requested Permit Limit Hazardous Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Pollutants (Ibs/year) (lbs/year) (Ibs/Heat) (Ibs/year) , (Ibs/yearl Formaldehyde ___ 352 Acetaldehyde Acrolein To 136 Methanol __: 160 381.68 Benzene _- Toluene Ethylbenzene _ A.S7 _ Xylene - IV 22.60 ._ n-lexane 2,2;4-TMP _ 00 0.00 I 1,3-Butadiene - 73 35 76.05 12WE203S.CP3 RICE EmissIons inventory Section 06-Regulatory Analysis Regulatory Requirements section 11.A.1-Except as provided In paragraphs 2 through 6 helow,no owner or ope.tor of a source shall allow or Regulation) cause the emission into the atmosphere of any air pollutant which is In excess 0f 20%apacity.This standard is based on24consecutive opacity readings taken at 15-second Intervals for six minutes.The approved reference test method for visible emissions measurement is EPA Method 9140 CFR,Part 60,Appendix A(Wye 39021)in all subsections of Section II.A and B of this regulation. Section l.A-No person,wherever located,shall cause r allow the emission of odorous air contaminants from any Regulation 2 single source such as to result in detectable odors which are measured in excess.of the following limits:For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven(21 or more volumes of odor free air. Part A-APEN Requirements Criteria Pollutants:For criteria pollutants,Alr Pollutant Emission Notices are required..fon each individual emission point in an attainment area with uncontrolled actual emissions of two ton per year ommore of any individual criteria Regulation pollutant(pollutanss are not summed). Applicant is required to file an APEN since emissions exceed 1 ton per year NOx and VDC. Part B—Construction Permit Exemptions Applicant is required to obtain a permit since uncontrolled VDC emissions fromthis facility are greaterthan the 2 TPY threshold(Regulation Number3,Part B,Section 11.0.3.al Part E,Section I.B:This engine has a design rate greater than 500 HP)reported as 15811 HP)and Is located In the ozone non-attainment area.As a result,the engine Is subject to the air pollution content technology requirements of Section 1.8.1 for rich burn engines.The APEN submitted indicates the engine is equipped with an Air/fuel ratio controller and a non-selective catalytic reduction system to control emissions. Part E,Section 1.O:This engine has a design rate greater than 500 HP(reported at 1619 HP),was constructed on or Regulation 7 after July 1,2010 and,based on the APEN received with this application,has uncontrolled actual emissions greater than permitting thresholds.As a result,this engineis subject to the July 1,2010emissien standards listed in Table 1 of Section 1.0.2.b. Part E,Section II.A:This engine did not exist at amajor source of NOx under the moderate non-attainment threshold of 100 tons/year as of lune 3,2016,nor did It exist at a major source of NOx under the serious non-attainment threshold of 50 tons/year as oflanuary 27,2020.As such,this engine is not subject tothe requirements of Section II.A.,which only apply to engines located at major sources of NOx. This engine is subject to MACT22ZZ Thefaciliry banareasaurce of HAPs,so the engine is not subject to major source requirements.Since this engine is located at an areasource of HAP emissionsand commenced construction after lune 12,2006,it is classified as a"New5tatirnary Rice."According to 463;6590fcI(1I,new stationary RICE MACT 2222 located at an area source"must meet the requirementeofthls porthy meeting the requirements of 40 CFR port 60 subpart IIII,for compression ignition engines or 40 CFR pert 60 subportBtl,fel-pork rtnition engines.No further requirements apply for such engines under this port."As such,this engine meets therequirements of Subpart ZIIZ by complying with Subpart 1111. Is this engine subject to NSPS1111I I I fit -r_ This engine commenced construction after-June 12,2006,and it was manufactured dfoerluly 1,2001 NSP51111 (§60.4230(a)14I1:II.As a result,the engine Is subject to the emission standards it NSE All,as required by 460.4233(e), • • 1.20/E2039,CP3 ICE Er.„ s inventory Section 0]-Technical Analysis Notes • Section OB-Inventory SCC Coding and Emissions Factors Uncontrolled Emia" AIRS PointO Process# SCC Code Pollutant Factor Control% Units 002 01 AD PM30 b/MMBtu PM2.5 • b/MMBIu NOx - - b/MMBtu VOC = b/MMBtu CO b/MMBtu SO2 b/MMBtu Formaldehyde b/MMBtu Acetaldehyde b/MMBtu Acroleln + b/MMBtu Methanol • b/MMBtu Benzene • b/MMBtu Toluene - b/MMBtu Ethylbenzene ,. . • b/MMBtu Xylene b/MMBtu n-Hexane b/MMBtu • 2,2,4-TMP .: b/MMBtu 1,3-Butadiene b/MMBIu • • • 12WE2035.CP3 ' Section 01-Adminstretive Information Facility ID: 123 9950 003 AlRs County Plant Point Section 02-QIUMMent Description Details One(1)Waukesha;:Model L7044GSI,Serial Number 5283702572,natural gas-fired,tsrho-charged, 4SRB reciprocating int nal combustion engine,site aced at1680 horsepower.1200 RPM.This. engine shall begmpped with nan-setective catalytic reduction IN SCR)system and an-fuel ratio control.This emission unit will be used for natural gas compression. Detailed Emissions Unit Description: Emission Control This engine will be equipped with a non,elective catalytic reduction system(NSCR)and air-fuel. Device Description: ratio control. Requested NOx 36.18% Control Efficiency%. Requested VOC Control Efficiency°b: 53.31% Requested CO Control Efficiency 56: ...:91.45%. Requested HCHO Control Efficiency%: 76.00% Requested Other HAP Control Efficiency%: 50.00% Engine Manufacture Date: Feb-13 Manufacturer: Waukesha . Model Number, 17044 851 Serial Number 5283702572 Engine Function t%rneresslon Denting I Mfg's Max.Rated Horsepower @sea level: :1680 Horsepower used for calcuationn 1680 BSCF @ 100%Load(btu/hchrl:. 7876 She-Rated BSCF @ 100%load)btu/hp-hrl: 7876 ratanaffn Engine Type Aspiration Other Parameters Electrical Generator Max Site Rating(kw) 0 Requested Hours of Operation 8760 PTE Hours of Operators 8760 Actual Hours of Operation 8128 Section 03-Processing Rate Informatiaefor Emissions Estimates Fuel Use Rate @ 10D%Load scf/hr ACTUAL Annual Fuel Consumption ..96.98 MMscf/yr MAX POTENTIAL Annual Fuel Consumption _. -MMscf/yr REQUESTED Annual Fuel Consumption MMscf/yr Requested Fuel Heating Value 1000 btu/scf - Actual Fuel Heating Value ,,,t„ 1109 btu/scf Section 04-Emissions Factors&Methodologies Emission Factors SI RICE Engine Uncontrolled I Units Controlled I Units Source Pollutant (Natural Gas Consumption) (Natural Gas Consumption) NOx :13.300 g/hp-he= Manufacturer 'CO 11.700 g/hP'hr M nufactbrer VOC 1.500 g/hp-hr - -Manofactufer PMxs - lb/MMBTU _ Table 3.23:4-Stroke Rich-Burn Engines PMso Ib/MMBTU ,'•I' 'Table 3.23:4-Stroke Rich-Burn Enemas SO2 Ib/MMBTU Table 3.2-3.4-Stroke Rini-Burn Engiut Formaldehyde :5.000E-02 g/lip-hr P'Teble 3.13:4-5troke Rich-Burn EnNnm Acetaldehyde _ Ib/MMBTU x1,Tehi 3.2-3:4-Stroke Rich-Burn Engines Acrolein Ih/MMBTU [Table 3.2.3,4Stroke Rich-Burn Engines Methanol lb/MMBTU `-.'Table 3.23:4-Stroke Rich-Burn Engines Benzene Ib/MMBTU ITable32-3r4-Stroke RlchAurn Engines Toluene lb/MMBTU @Table 32-3:4-Stroke Bic,-Burn Engines Ethylbenzene Ib/MMBTU _ Teble3.23.4-Stroke Rlcfi-Burn Enginss. %yMne -Ib/MMBTU zTeble 11-3:4-Stroke RlahBurn Engines n-Hexane Ib/MMRSU f, Arable32-=4-Stroke Rich.orn Engtnon 2,2,4-TMP _ Ib/MMBTU r•ti;1 @Table 32-3:45troke Rich-Burn Engfree - 1,3-Butadlane --. Ib/MMBTU _ ..,.1811 @Table32-3:4.-Stroko Rith-Burn Engines Section 05-Emissions Inventory Potential to Erna Actual Emissions Requested Permit Limits Criterla Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled (tons/year) (tons/year) (tom/Year) ltons/year) (tans/yea. NOx .21:.2..5,[ -._ ':.:' 3.1,0 CO .34.90 ,_ 1=.15 ROC 1..t2. 502. .1.3 Potential to Emit Actual Emissions Requested Permit Limits Hazardous Air Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Pollutants (lbs/year) (lbs/year) (lbs/year) (I55/year) (ibs/read Formaldehyde Acetaldehyde Acnlein 101 = -341.0-: Methanol tak .__ _ 3116: Benzene Itsk _ '" 133.'_(. ... Toluene 0,k aft 44.09 _ Ethylbenzene %ylene .... 2,2,4TMP 0 1,3-Butadiene )1 _n - 12WE2039.CP3 RICE Emissions Inventory Section 06-Regulatory Analysis Regulatory Requirements Section IIA.1-Except as provided in paragraphs 2through 6 below,no owner or operator of a source shall allow or Regulatla,. cause the emission into the atmosphere of any air pollutant which is in excess 0020%opacity.This standard h based on24 consecutive opacity readings taken at 15-second Intervals forsix minutes.The approved referencetest method for visible emissions measurement A EPA Method 9(40 CFR,Part 60,Appendix A(July,19921)In all subsectionsof Section ILA and B of this regulation. Section LA-No person,wherever located,shall cause or allow the emission of odorous air contaminants from any Regulation 2 single source such as to result In detectable odors which are measured In excess of the following limits:For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven(7)or more volumes of odor free air. Part A-APEN Requirements Criteria Pollutants:For criteria pollutants,Air Pollutant Emission Notices are required for each individual emission point in an attainment area with uncontrolled actual emissions of two ton per year or more of any individual criteria Regulation 3 pollutant(pollutants are not summed). Applicant Is required to file an APEN since emissions exceed 1 ton per year NOx and VOC. Part 0—Construction Permit Exemptions Applicant is required to obtain a permit since uncontrolled VOC emissions fromthls facility are greater than the 2 WY threshold(Regulation Number s,Part B,Section II.D.3.a) Part E,Section 1.5:This engine has a design rate greater than 500 HP(reported as 1680 HP)and is located in the ozone non-attainment area.As a result,the engine is subject to the air pollution control technology requirements of Section 1.9.1 for rich burn engines.The APEN submitted Indicates the engine is equipped with an Alr/fuel ratio controller and a non-selective catalytic reduction system to control emissions. Part E,Section I.0:This engine has a design rate greater than 500 HP(reported at 1680 HP),was constructed on.or Regulation] after July 1,2010 and,based on the AWN received with this application,has uncontrolled actual emissionsgreaeer than permitting thresholds.As a result,this engine is subject Co the July 1,2010 emission standards listed in Tabla 1 of Section I.D.2.b. Part 6,Section ILA:This engine did not exist at a major source of NOx under the moderate non-attainment threshold of 100 tans/year as oflune 3,2016,nor did it exist at a major source of NOx under the serious non-attainment threshold of 50 tons/year as of January 22,2020.As such,this engine is not subject to the requirements of Section II.A.,which only apply to engines located at major sources of 900. This engine osubjectta MACT 2222 The facility is an area source of HAPs,so the engine is not subject to major source requirements.Since this engine is located at an area source of HAP emissions and commenced construction after lune 12,2006,it Is classified as a"New Stationary Rice)"According to¢63.6590(c)(1),new stationary RICE MACT722Z boated at an area source"must meet the requirements ofthisport by meeting the requirements oof40CFR port60 subpart ill),far compression ignition engines or 40 CFR port60 subpartiii1,for spark ignition engines.No further requirements apply for such engines under this port."As such,this engine meets the requirements of Subpart ZZZZ by complying with Subpart 1111. Is this engine subject toNSP5 ltltf I +`mr !"— : This engine commenced construction after lune 12,200G,and Owes manufactured after July 1,2007 NSPS1101 (¢60.4230(a)(4)(i)).As a result,the engine Is subject to the emission standards in NSPS iiii,as required by 560.4233(e). 12WE2D39.CP3 CE E.rlissioo>Inventory Section 07-Technical Analysis Notes Section 0S-Inventory SCC Ceding and Emissions Factors Uncontrolled Emissions AIRS Point It Process 0 5CC Code Pollutant Factor Control 96 Units 003 01 242-00260 Internal CCOmbustionEnginer Natural G 4.cicle Rich Bum PM10 b/MMBtu PM2.5 b/MMBtu MOO - b/MMBtu VOC b/MMBtu CO • b/MMBtu 502 _ .. OIMMBtu Formaldehyde • b/MMEitu Acetaldehyde b/MMBtu Acroleln - • b/MMBtu Methanol b/MMBtu Beniene .:. b/MMBIu Toluene . c - • b/MMBtu Ethylbenzene .. b/MMBtu Xylene bIMMBtu n-Heaane - - b/MMBtu 2;2,4-TMP 2 - b/MMBIu 1,3-Butadiene -• b/MMBtu 12WE2039.CP3 Section 01-adminstrative Information 'Faddy AIRS ID: 123 9950" 004 `` County Plant Point Section 02-Equipment Description Details One(1)Waukesha,Model 1704405h Serial Number 5283701688,natural gas-tired turbo charged; 45RB reciprocating intemal comb eel nengine site rated at1680 horsepower at1200 RP M.This engine shall be equipped with non-selective catalytic reduction.INSCR)system and air-fuel ratio Data,Emissions control.This emission unit wit he used for natural g compression Unit Description: Emission Control This engine will be equipped with a nonselective catalytic reduction system(NSCR)and air-£uel Device Description: ratio control. Requested NOx 9618°( Control Efficiency%. Requested VOC Control Efficiency 0: 53.31 Requested CO Control • Effinenry%: 91.4S< Requested HCHO Control Efficiency 0: 76.040 Requested Other HAP Control Efficiency 0: 50.0040 Engine Manufacture Date: .T:'..tan-12..,... Manufacturer: Waukesha Model Number: 17044051 Serial Number: 5283701588 Engine Function Cornptesten Denting Mfg's Max.Rated Horsepower @ sea level: 1680: Horsepower used for calcuarions: 1680 BSCF @ 100%Load lbtu/hp-ht): 7876 Site-Rated BSCF @ 100%load l btu/hp-hr): 7876 Engine One 45RB Other Parameters Aspiration turbo che�d ''„ Electrical Generator M.50 Rating M) 0 Requested Hours of Operation 8760 PTE Hours of Operation :::'8760 Actual Hours of Operation 7997 Section D3-Processing Rate Information for Emissions Estimates Fuel Use Rate @ 100%Load sct/hr ACTUAL Annual Fuel Consumpton 95.48 MMscf/yr MAX POTENTIAL Annual Fuel Consumption MMscfly, REQUESTED Annual Fuel Consumption MMscf/yr Requested Fuel Heating Value 1000 btu/zcf Actual Fuel Heating Value .. 1109 btu/scf I Section 04-Emissions Factors S Methodologies Emission Factors 51 RICE Engine Uncmrrotled I Units Controlled I Units Source Pollutant (Natural Gas Consumption) (Natural Gas Consumption) NOx ":19.106 ?.g/lop-Icr$; ,. = Mentdedture(.th CO 11.700 0./hp-hr kr =. MenpFactutet :, VOC 1.500 ,u g/I p-hr's, a M nufkooeer 4- PM,z ,t6/MMBTO 1eble91e3:45tro RIC1140e Eeglooa' PMra Bb/MMIOT%t Table 5,744'4-Sfrokaflob-Burningineap, SOP sile1MMBTU, _ ytbble3.244145tr9k$BlEA:Bncu Engine Formaldehyde - 5.000E-02 g/Fp hr'x" -0651 th.0-346StrePe.ALe6VBalu Engines Acetaldehyde ./MM(5TOt - Tabla3. '5teake Hicfx1tmttngims, Acrolein ;JQJti7MBN-. - ar bee B",z`-It 4'Str`ok RiiHb ₹YEng05esb Methanol ifilMMISFQ,Z ngable 3i-3,48YmkeRlchBumEngine3" Benzene la/MMBTU" v'Ys6Ie3..2-B:45teeketkkBumEegitss. Toluene .,. ibIMMSTOO �a5oble$;294-Sg-ke-'RicMBumEngtttne Ethylbenzene s 'Ib/MMBR6;, - U0abie3.2-3;431rok€_Rih-Burn Engines'. XYlene ib/MMBTU --" -viable 3,Y-3:4Stroke.Nicdit�i-4tcme5ngims' n-Hexane j6]MMBTu' _ - `=7ables 4st emofi-5anoOogt�es. 0,0,4.TMP I1/MMBTLk. _ -07abre31X1:43t1ok.B(cb-BoytEnglnisT: 1,3-Butadiene .ib/MMB'N _ .Table 52-3_4Stroke-Rich-Sum Engines- Section OS-Emissions Inventory Potential to Emit Actual Emissions Requested Permit Limits Criteria Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Irons/year) (tons/year} Irons/year) (tons/year) Itons/yar) NOx CO VOC PMzs SOP Hazardous Air Potential to Emit Actual Emissions Requested Permit Limits Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Pollutants ilbs/year) ilbs/year) (III:/year) Ilbs/year) (Ibs/year) Formaldehyde Acetaldehyde Acrolein .. _ Methanol Benzene Toluene .. ., Ethylbenzene ... XYlene _. .. n-Hexane 2,2,4TMP -.. 1,3-Butadiene -.. .. 12WE2O39.CP3 RICE Emissions Inventory Section 06-Regulatory Analysis Regulatory Requirements Section II.A.1-Except as provided in paragraphs 2through 6 below,no owner or operator of a source shall allow or Regulation) cause the emission into the atmosphere of any air pollutant which Is in excess of 20%opacity.This standard is based on 24 consecutive opacity readings taken at 15-second intervals for six minutes.The approved reference test method for visible emissions measurement is EPA Method 9(40 CFR,Part 60,Appendix A(July,19921)in all subsections of Section II.A and B of this regulation. Section 1.A-No person,wherever located,shall cause or allow the emission of odorous*contaminants from any Regulation 2 single source such as to result in detectable odors which are measured in excess of the following limits:For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven(7)or more volumes of odor free air. Pert A-APEN Requirements Criteria Pollutants:For criteria pollutants,Art Pollutant Emission Notices are required for:each individual emission point in an attainment area with uncontrolled actual emissions of two ton per year or more of any individual criteria Regulation 3 pollutant(pollutants are not summed). Applicant is required to file an APiN since emissiars exceed 1 tan per year NOx and VOC. Part IS—Construction Permit Exemptions Applicant Is required to obtain a permit since uncontrolled VOC emissions from this facility are greater than the 2TPY threshold(Regulation Number 3,Part 3,Section ilD.3.a) Pert E,Section I.B:This engine has a design rate gmaterthan 500 HP(reported as 1680 HP)and is located In the axone ent area.As a result,the engine is subject to the air pollution control technology requirements of Section I.e.l for rich burn engines.The APEN subnOtted indicates the engine is equipped with an Air/fuel ratio controller and a -selective catalytic reduction system to control emissions. Part E,Raglan I.D:This engine has a design rate greater than 500 HP(reported at 1680 HP),was constructed on or Regulation 7 aherluly 1,2010 and,based on the APEN received with this application,has uncontrolled actual emissions greater than permitting thresholds.As a resuh,this engine is subject to the July 1,2010 emission standards listed in Table 1 of Section I.O.2.b, Part E,5ectian ll.A:This engine did not exist at a major source of NOx underthe moderate non-attainment threshold of 100 tons/year as of lune 3,2016,nor did it exist,at a major source of NOx under the serious non-attainment threshold of 50 tons/year as of January 27,2020.As such,this engine Is not subject to the requirements of Section II.A.,which only apply to engines located at majoreources of NOx. This engine is subject to MACT 2222 The facility area source of HAPs,se the engine is not subject to major source requirements.Since this engine is located at an area source of HAP emissions and commenced construction after lune 12,2006,his classified as a"New Statuary Rice."According to§63,6530(c)(1),new stationary RICE MACT 2222 located at an area source"must meet the requirements of this port by meeting the requirements of 40 CFR part 60 subpart llll,for compression Ignition enginesd.or 46CFR port 60 subpart BA for spark ignition engines.No further requirements apply for such engines under this port."As such,this engine meets the requirements of Subpart 2707 by complying with Subpartllll. Is this engine subject to N5P511117 I This engine commenced construction after lune 12,2006,and It was manufactured aherluly 1,2007 N5'5 (§60.42301a1(41(Il).As a result,the engine is sub).to the emission standards In NSPS fill,as required by 460.4233(e). • 12WE2039.CP3 Section 02-Technical Analysis Notes Section 08-Inventory SCC Coding and Emissions Factors Uncontrolled Emissions AIRS Point ProcesaA SCC Code Pollutant Factor Control Y. Units 004 01 2.2-002-13Internail Combustion Egines:Natural Gas,4cycie Bich Burn PM10 - b/MMBtu PM2.5 _ b/MMBtu NOx ... . b/MMBtu VOC �. b/MMBtu CO _ b/MMBtu SO2 b/MMBtu Formaldehyde bIMMBtu Acetaldehyde r .. b/MMBtu Acroleln b/MMBtu Methanol <-. b/MMBtu Benzene • b/MMBtu Toluene = - b/MMStu Ethylbenzene _ b/MMBtu Xylene b/MMBtu n-Hexane ... b/MMBtu 2,2,4-TMP - b/MMBtu 1,3-Butedlene - b/MMBtu 12WE2039.CP3 Spark IgnitionEngine APEN t Form -201 -,4.0.1.),ttg Air Pollutant Emission Notice (APEN) and Application for Construction Permit All sections of this APEN and application must be completed for both new and existing facilities, including APEN updates. Incomplete APENs will be rejected and will require re-submittal. Your APEN will be rejected if it is filled out incorrectly, is missing information, or lacks payment for the filing fee. The re-submittal will require payment for a new filing fee. This APEN is to be used for spark ignition (e.g. gas-fired) reciprocating internal combustion engines (RICE). If your engine is a compression ignition engine (e.g. diesel-fired)or your emission unit does not fall into the RICE category, there may be a more specific APEN for your source (e.g. compression ignition engine, mining operations, asphalt plant, crusher/screen, etc.). In addition, the General APEN (Form APCD-200) is available if the specialty APEN options will not satisfy your reporting needs. A list of all available APEN forms can be found an the Air Pollution Control Division (APCD) website. This emission notice is valid for five (5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made (significant emissions increase, increase production, new equipment, change in fuel type, etc.). See Regulation No. 3, Part A, II.C. for revised APEN requirements. Permit Number: 12WE2039 AIRS ID Number: 123 / 9950 /001 E Leave blank unless APCD has already assigned a permit#and AIRS ID' Section 1 - Administrative Information Company Name': DCP Operating Company, LP Site Name: Wells Ranch Compressor Station Site Location:• Site Location NWNW Section 27, T6N, R63W County: Weld NAICS or SIC Code: 1311 Mailing Address: (Include Zip Code) 370 17th Street, Suite 2500 Denver, CO 80202 Contact Person: Roshini Shankaran Phone Number: 303-605-2039 Portable Source Home Base: E-Mail AddressZ: rshankaran@dcpmidstream.com 1 Use the full, legal company name registered with the Colorado Secretary of State.This is the company name that will appear on all documents issued by the APCD. Any changes will require additional paperwork. 2 Permits,exemption letters, and any processing invoices will be issued by the APCD via e-mail to the address provided. • I COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 1 I I'=%:= Permit Number: 12WE2039 AIRS ID Number: 123 /9950/001 [Leave blank unless APCD has already assigned a permit 7 and AIRS ID] Section 2 - Requested Action O NEW permit OR newly-reported emission source (check one below) ❑ STATIONARY source O PORTABLE source ❑ Request coverage under a Construction Permit ❑ Request coverage under General Permit GP023 (Natural Gas Only) If General Permit coverage is requested, the General Permit registration fee of$2,118.75 must be submitted along with the APEN filing fee. -OR- ❑✓ MODIFICATION to existing permit (check each box below that applies) ❑ Change fuel or equipment O Change company name4 O Add point to existing permit ❑✓ Change permit limit O Transfer of ownerships ❑✓ Other (describe below) -OR- ❑ APEN submittal for update only (Note blank APENs will not be accepted) -ADDITIONAL PERMIT ACTIONS- El APEN submittal for permit-exempt/grandfathered source O Notification of Alternate Operating Scenario (AOS) permanent replacement6 Additional Info Et Notes: Splitting grouped emissions limits for C-193, C-194, C-195, C-196 evenly between the four compressor engines 3 Only one engine may be reported per APEN for GP02 coverage. Coverage under GP02 is voluntary. 4 For company name change, a completed Company Name Change Certification Form (Form APCD-106) must be submitted. 5 For transfer of ownership, a completed Transfer of Ownership Certification Form (Form APCD-104)must be submitted. 6 This does not apply to General Permit GP02, as it does not contain a provision for AOS permanent replacements. Section 3 - General Information Does this engine have a Company Equipment Identification No. (e.g. ENG-1,Engine 3, etc.)? Yes If yes, provide the Company Equipment Identification No.: C-193 General description of equipment and purpose: Natural gas compression For existing sources, operation began on: 10/11/2013 For new or reconstructed sources, the projected start-up date is: Will this equipment be operated in any NAAQS nonattainment area? (See APCD website for NAAQS nonattainment area boundary map) D Yes O No Normal Hours of Source Operation: 24 hours/day 7 days/week 52 weeks/year Seasonal use percentage: Dec-Feb: 25% Mar-May: 25% June-Aug: 25% Sept-Nov: 25% . .. !COLORADO Form APCD-201 -Spark ignition,Engine APEN - Revision 07/2020 2 I I„fn Permit Number: 12WE2039 AIRS ID Number: 123 /9950/001 [Leave blank unless APCD has already assigned a permit 4 and AIRS ID] Section 4 - Engine Information Engine Function: O Primary and/or Peaking Power O Emergency(max. 500 hrs/year) 0 Compression O Pump Jack O Water Pump O Other: What is the maximum number of hours this engine will be used for emergency back-up power? 0 hours/year Engine Make: Waukesha Engine Model: L7044 GSI Serial Number7: 5283701686 What is the maximum designed horsepower rating? 1,680 hp What is the maximum manufacturer's site-rating? 1,680 hp kW What is the engine Brake Specific Fuel Consumption at 100% Load? 7,876 BTU/hp-hr Is this APEN reporting an AOS replacement engine? O Yes 0 No If yes, provide the make, model, and serial number of the old engine below: Engine Make: Engine Model: Serial Number: Engine Features: Cycle Type: ❑ 2-Stroke 0 4-Stroke Combustion: O Lean Burn 0 Rich Burn Aspiration: O Natural 0 Turbocharged Is this engine equipped with an Air/Fuel ratio controller(AFRC)? 0 Yes O No If yes, what type of AFRC is in use? 0 O2 Sensor(mV) ❑NOX Sensor(ppm) O Other: Is this engine equipped with a Low-NOx design? O Yes 0 No Engine Dates: What is the manufactured date of this engine? 01/2012 O If the following date information is not available, check this box, and this engine will be considered newly constructed and/or newly relocated into the state of Colorado based on the engine start-up date. What date was this engine ordered? 2012 What is the date this engine was first located to Colorado? 2012 What is the date this engine was first placed in service/operation? 2012 What is the date this engine commenced construction? < 01/2012 What is the date this engine was last reconstructed or modified? N/A 7 The serial number must be submitted if coverage under GP02 is requested. y. (COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 3 ; H6E�wa , Permit Number: 12WE2039 AIRS ID Number: 123 /9950/001 [Leave blank unless APCD has already assigned a permit#and AIRS ID} Section 5 - Geographical/Stack Information Geographical Coordinates (Latitude/Longitude or UTM) 40.464 / -104.430 k-` r a3 e a . �' a m r`i I C-193 45 1,152 8,996 140 Indicate the direction of the Stack outlet: (check one) O Upward O Downward O Upward with obstructing raincap ❑ Horizontal O Other (describe): Indicate the stack opening and size: (check one) O Circular Interior stack diameter(inches): 14 ❑ Square/Rectangle Interior stack diameter(inches): Interior stack depth (inches): ❑ Other(describe): Section 6 - Fuel Data and Throughput Information uel Use Rate® 100%Load Actual Annual Fuel Use Requested Annual Permit Limit8 p w (SCF/hourl ^ . (MMSCF/year) : MMSCFlyear) 13,232 96.86 115.91 From what year is the actual annual amount? 2019 Indicate the type of fuel used9: ❑ Pipeline Natural Gas (assumed fuel heating value of 1,020 BTU/scf) ❑ Field Natural Gas Heating value: BTU/scf ❑ Propane (assumed fuel heating value of 2,300 BTU/scf) ❑ Landfill Gas Heating Value: BTU/scf ❑✓ Other(describe): Residue Gas Heating Value (give units): 1,109 Btu/scf 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs,including APEN updates. 9 If fuel heating value is different than the listed assumed value, provide this information in the"Other"field. i , COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 4 E f=4,17==, __ Permit Number: 12WE2039 AIRS ID Number: 123 /9950/001 [Leave blank unless APCD has already assigned a permit A and AIRS IU_ Section 7 - Criteria Pollutant Emissions Information Attach all emission calculations and emission factor documentation to this APEN form. The APCD website has a Natural Gas Fired Engines Calculator available to assist with emission calculations. Is any emission control equipment or practice used to reduce emissions? 0 Yes O No If yes, describe the control equipment AND state the collection and control efficiencies: Control Equipr lent Collection Efficiency Control Efficiency Pollutant (%of total emissions captured by (%reduction of captured De5Cllptton control equipment) emissions) TSP (PM) PM10 PM2.5 SOx NOx NSCR 100% 96% VOC NSCR 100% 53% CO NSCR 100% 91% Other: HAPs NSCR 100% HCHO-76%,Other HAPs-50% From what year is the following reported actual annual emissions data? 201 9 Use the following table to report the criteria pollutant emissions from source: Emission Factor Actual Annual Emissions Requested Annual Permit Pollutant Emission Limit(s)8 Uncontrolled Units Source Uncontrolled Controlled Uncontrolled Controlled Basis (AP-42, Emissions Emissions10 Emissions Emissions Mfg.,etc.) (tons/year) (tons/year) (tons/year) (tons/year) TSP (PM) 1.94E-02 lb/MMBtu AP-42 1.04 1.04 1.12 1.12 PM10 1.94E-02 Ib/MMBtu AP-42 1.04 1.04 1.12 1.12 PM2.5 1.94E-02 lb/MMBtu AP-42 1.04 1.04 1.12 1.12 SOx 5.88E-04 Ib/MMBtu AP-42 0.03 0.03 0.03 0.03 NOx 13.1 g/hp-hr Mfg. 196.90 7.52 212.52 8.11 VOC 1.5 g/hp-hr Mfg. 22.55 10.52 24.33 11.36 CO 11.7 g/hp-hr Mfg. 175.85 15.03 189.80 16.22 8 Requested values will become permit limitations or will be evaluated for exempt status,as applicable, and should consider future process growth. Requested values are required on all APENs,including APEN updates. 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. Section 8 - Non-Criteria Pollutant Emissions Information Does the emissions source have any uncontrolled actual emissions of non-criteria ❑✓ Yes ❑ No pollutants (e.g. HAP- hazardous air pollutant) equal to or greater than 250 lbs/year? If yes, use the following table to report the non-criteria pollutant(HAP) emissions from source: Chemical Emission Factor Actual Annual Emissions Abstract Source Uncontrolled Controlled Chemical Name Uncontrolled Service (CAS) Units (AP-42, Emissions Emissionst0 Number Basis Mfg.,etc. (lbs/year)Year) (lbs/year) Formaldehyde 50000 0.05 g/hp-hr Mfg. 1,503.03 360.73 Acetaldehyde 75070 2.79E-03 Ib/MMBtu AP-42 299.62 149.81 Acrolein 107028 2.63E-03 Ib/MMBtu AP-42 282.44 141.22 Benzene 71432 Other: Methanol 67561 3.06E-03 lb/MMBtu AP-42 328.61 164.31 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. :COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 5 I _ ` I H=1",;.= Permit Number: 12WE2039 AIRS ID Number: 123 /9950/001 [leave plank unless APCD as already assigned a permit g and AIRS ID] Section 9 - Applicant Certification I hereby certify that all information contained herein and information submitted with this application is complete, • true, and correct. If this is a registration for coverage under General Permit GPO2, I further certify that this source is and will be operated in full compliance with each condition of General Permit GP02. 1© IZ/20ai Si nature of Legally Authorized Person(not a vendor or consultant) Date Roshini Shankaran Senior Environmental Engineer Name(print) - Title Check the appropriate box to request a copy of the: Ir Draft permit prior to issuance 0 Draft permit prior to public notice (Checking any of these boxes may result in an increased fee and/or processing time) This emission notice is valid for five(5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made(significant emissions increase, increase production, new equipment, change in fuel type, etc.).See Regulation No. 3, Part A, 1I.C. for revised APEN requirements. Send this form along with$216.00 and the General For more information or assistance call: Permit registration fee of$2,118.75, if applicable, to: Small Business Assistance Program Colorado Department of Public Health and Environment (303)692-3175 Air Pollution Control Division Oa APCD-SS-B1 (303)692-3148 4300 Cherry Creek Drive South Denver, CO 80246-1530 APCD Main Phone Number (303)692-3150 Make check payable to: Colorado Department of Public Health and Environment COLORADO Form APCD-201 - Spaik ignition cng o APEN RevvisioMt 07i 2020 6 I t l a"� , Spark Ignition Engine APEN . Form C _ 0 Air Pollutant Emission Notice (APEN) and Application for Construction Permit All sections of this APEN and application must be completed for both new and existing facilities, including APEN updates. Incomplete APENs will be rejected and will require re-submittal. Your APEN will be rejected if it is filled out incorrectly, is missing information, or tacks payment for the filing fee. The re-submittal will require payment for a new filing fee. This APEN is to be used for spark ignition (e.g. gas-fired) reciprocating internal combustion engines (RICE). If your engine is a compression ignition engine (e.g. diesel-fired) or your emission unit does not fall into the RICE category, there may be a more specific APEN for your source (e.g. compression ignition engine, mining operations, asphalt plant, crusher/screen, etc.). In addition, the General APEN (Form APCD-200) is available if the specialty APEN options will not satisfy your reporting needs. A list of all available APEN forms can be found on the Air Pollution Control Division (APCD)website. This emission notice is valid for five (5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made (significant emissions increase, increase production, new equipment, change in fuel type, etc.). See Regulation No. 3, Part A, II.C. for revised APEN requirements. Permit Number: 12WE2039 AIRS ID Number: 123 / 9950 /002 [Leave blank unless APCD has already assigned a permit=and AIRS ID Section 1 - Administrative Information Company Name': DCP Operating Company, LP Site Name: Wells Ranch Compressor Station Site Location Site Location: NWNW Section 27, T6N, R63W County: Weld NAICS or SIC Code: 1311 Mailing Address: (Include Zip Code) 370 17th Street, Suite 2500 Denver, CO 80202 Contact Person: Roshini Shankaran Phone Number: 303-605-2039 Portable Source Home Base: E-Mail AddressZ: rshankaran@dcpmidstream.com 1 Use the full, legal company name registered with the Colorado Secretary of State.This is the company name that will appear on all documents issued by the APCD. Any changes will require additional paperwork. 2 Permits,exemption letters, and any processing invoices will be issued by the APCD via e-mail to the address provided. COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 1 j H bend 'em Permit Number: 12WE2039 AIRS ID Number: 123 /9950/002 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 5 - Geographical/Stack Information Geographical Coordinates (LatitudelLongitude or UTM) 40.464 / -104.430 Discharge Height 2 ba a Gr. nd Levelon tt -40 ¢' iaV Nt C-194 45 1,152 8,996 140 Indicate the direction of the Stack outlet: (check one) ✓❑ Upward O Downward O Upward with obstructing raincap ❑ Horizontal ❑ Other (describe): Indicate the stack opening and size: (check one) ❑✓ Circular Interior stack diameter (inches): 14 ❑ Square/Rectangle Interior stack diameter(inches): Interior stack depth (inches): ❑ Other (describe): Section 6 - Fuel Data and Throughput Information Fuel Use Rate @.,100%Load Actual Annual Fuel Use Requested Annual Permit Limits (SCF/hour) (MMSCF/year) °(MMSCF/year) 13,232 94.55 115.91 From what year is the actual annual amount? 2019 Indicate the type of fuel used9: ❑ Pipeline Natural Gas (assumed fuel heating value of 1,020 BTU/scf) ❑ Field Natural Gas Heating value: BTU/scf ❑ Propane (assumed fuel heating value of 2,300 BTU/scf) ❑ Landfill Gas Heating Value: BTU/scf ❑ Other(describe): Residue Gas Heating Value (give units): 1,109 Btu/scf 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 9 If fuel heating value is different than the listed assumed value, provide this information in the"Other"field. COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 4 I Bepa.�,ent:Belie Hcallh 6£nvronmcrck Permit Number: 12WE2039 AIRS ID Number: 123 /9950/002 [Leave blank unless APCD has already assigned a permit#and AIRS ID= Section 7 - Criteria Pollutant Emissions Information Attach all emission calculations and emission factor documentation to this APEN form.The APCD website has a Natural Gas Fired Engines Calculator available to assist with emission calculations. Is any emission control equipment or practice used to reduce emissions? ❑✓ Yes ❑ No If yes, describe the control equipment AND state the collection and control efficiencies: Control Equipment Collection Efficiency Control Efficiency Pollutant (%of total emissions captured by (%reduction of captured Description control equipment) emissions) TSP (PM) PM10 PM2.5 SOx NOx NSCR 100% 96% VOC NSCR 100% 53% CO NSCR 100% 91% Other: HAPs NSCR 100% - HCHO-76%,Other HAPs-50% From what year is the following reported actual annual emissions data? 201 9 Use the following table to report the criteria pollutant emissions from source: Requested Annual Permit Emission Factor Actual Annual Emissions Pollutant Emission Limit(s)8 Uncontrolled Units Source Uncontrolled Controlled Uncontrolled Controlled Basis (AP-42, Emissions Emissions10 Emissions Emissions Mfg.,etc.) (tons/year) (tons/year) (tons/year) (tons/year) TSP (PM) 1.94E-02 Ib/MMBtu AP-42 1.02 1.02 1.12 1.12 PM10 1.94E-02 Ib/MMBtu AP-42 1.02 1.02 1.12 1.12 PM2.5 1.94E-02 Ib/MMBtu AP-42 1.02 1.02 1.12 1.12 SOx 5.88E-04 Ib/MMBtu AP-42 0.03 0.03 0.03 0.03 NOx 13.1 g/hp-hr Mfg. 192.23 7.34 212.52 8.11 VOC 1.5 g/hp-hr Mfg. 22.01 10.27 24.33 11.36 CO 11.7 g/hp-hr Mfg. 171.69 14.67 189.80 16.22 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. Section 8 - Non-Criteria Pollutant Emissions Information Does the emissions source have any uncontrolled actual emissions of non-criteria Yes O No pollutants (e.g. HAP- hazardous air pollutant) equal to or greater than 250 lbs/year? If yes, use the following table to report the non-criteria pollutant (HAP)emissions from source: Chemical Emission Factor Actual Annual Emissions Abstract Source Uncontrolled Controlled Chemical Name Service(CAS) Uncontrolled Units (AP-42, Emissions Emissions Number Basis Mfg.,etc.) lbs/ ear Y ) (lbs/year) Formaldehyde 50000 0.05 g/hp-hr Mfg. 1,467.44 352.19 Acetaldehyde 75070 2.79E-03 lb/MMBtu AP-42 292.53 146.26 Acrolein 107028 2.63E-03 lb/MMBtu AP-42 275.75 137.87 Benzene 71432 Other: Methanol 67561 3.06E-03 lb/MMBtu AP-42 320.83 160.42 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. ICOLORAoo Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 5 I �_ - x`� En t, Permit Number: 12WE2039 AIRS ID Number: 123 /9950/002 ;Leave blank ii!Ttesa APCD(i >ali:a..a :, , u.n Section 9- Applicant Certification I hereby certify that all information contained herein and information submitted with this application is complete, true, and correct. If this is a registration for coverage under General Permit GP02, I further certify that this source is and will be operated in full compliance with each condition of General Permit GP02. Signature of Legally Authorized Person (not a vendor or consultant) Date Roshini Shankaran Senior Environmental Engineer Name(print) Title Check the appropriate box to request a copy of the: Draft permit prior to issuance ID Draft permit prior to public notice (Checking any of these boxes may result in an increased fee and/or processing time) This emission notice is valid for five(5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made(significant emissions increase, increase production, new equipment,change in fuel type,etc.).See Regulation No. 3, Part A, II.C. for revised APEN requirements. Send this form along with $216.00 and the General For more information or assistance call: Permit registration fee of$2,118.75, if applicable, to: Small Business Assistance Program Colorado Department of Public Health and Environment (303)692-3175 Air Pollution Control Division OR APCD-SS-B1 (303) 692-3148 4300 Cherry Creek Drive South Denver, CO 80246-1530 APCD Main Phone Number (303)692-3150 Make check payable to: Colorado Department of Public Health and Environment COLORADO Form APCD-2O1 -Spark Ignition Engine APEN - Revision 07/2020 6 &COL""°AD Spark Ignition EngineAPEN . Form AP11-201 Air Pollutant Emission Notice (APEN) and Application for Construction Permit All sections of this APEN and application must be completed for both new and existing facilities, including APEN updates. Incomplete APENs will be rejected and will require re-submittal. Your APEN will be rejected if it is filled out incorrectly, is missing information, or lacks payment for the filing fee. The re-submittal will require payment for a new filing fee. This APEN is to be used for spark ignition (e.g. gas-fired) reciprocating internal combustion engines (RICE). If your engine is a compression ignition engine (e.g. diesel-fired) or your emission unit does not fall into the RICE category, there may be a more specific APEN for your source (e.g. compression ignition engine, mining operations, asphalt plant, crusher/screen, etc.). In addition, the General APEN (Form APCD-200) is available if the specialty APEN options will not satisfy your reporting needs. A list of all available APEN forms can be found on the Air Pollution Control Division (APCD)website. This emission notice is valid for five (5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made (significant emissions increase, increase production, new equipment, change in fuel type, etc.). See Regulation No. 3, Part A, II.C. for revised APEN requirements. Permit Number: 1 2WE2039 AIRS ID Number: 123 / 9950 /003 [Leave blank unless APCD has already assigned a permit y and AiRS ID; Section 1 - Administrative Information Company Name': DCP Operating Company, LP Site Name: Wells Ranch Compressor Station Site Location Site Location: NWNW Section 27, T6N, R63W County: Weld NAICS or SIC Code: 1311 Mailing Address: (Include Zip Code) 370 17th Street, Suite 2500 Denver, CO 80202 Contact Person: Roshini Shankaran Phone Number: 303-605-2039 Portable Source Home Base: E-Mail AddressZ: rshankaran@dcpmidstream.com 1 Use the full, legal company name registered with the Colorado Secretary of State.This is the company name that will appear on all documents issued by the APCD. Any changes will require additional paperwork. 2 Permits, exemption letters, and any processing invoices will be issued by the APCD via e-mail to the address provided. COLORA QO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 1 I x �E=,, Permit Number: 12WE2039 AIRS ID Number: 123 /9950/003 )Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 2 - Requested Action O NEW permit OR newly-reported emission source (check one below) El STATIONARY source O PORTABLE source El Request coverage under a Construction Permit ❑ Request coverage under General Permit GP023 (Natural Gas Only) If General Permit coverage is requested, the General Permit registration fee of$2,118.75 must be submitted along with the APEN filing fee. -OR- ❑✓ MODIFICATION to existing permit (check each box below that applies) ❑ Change fuel or equipment O Change company name' O Add point to existing permit El Change permit limit ❑ Transfer of ownerships ❑✓ Other(describe below) -OR- ❑ APEN submittal for update only (Note blank APENs will not be accepted) -ADDITIONAL PERMIT ACTIONS - ▪ APEN submittal for permit-exempt/grandfathered source ❑ Notification of Alternate Operating Scenario (AOS) permanent replacement6 Additional Info Et Notes: Splitting grouped emissions limits for C-193, C-194, C-195, C-196 evenly between the four compressor engines 3 Only one engine may be reported per APEN for GP02 coverage. Coverage under GP02 is voluntary. 4 For company name change,a completed Company Name Change Certification Form (Form APCD-106) must be submitted. s For transfer of ownership, a completed Transfer of Ownership Certification Form (Form APCD-104)must be submitted. 6 This does not apply to General Permit GP02, as it does not contain a provision for AOS permanent replacements. Section 3 - General Information Does this engine have a Company Equipment Identification No. (e.g. ENG-1,Engine 3, etc.)? Yes If yes, provide the Company Equipment Identification No.: C-195 General description of equipment and purpose: Natural gas compression For existing sources, operation began on: 10/25/2013 For new or reconstructed sources, the projected start-up date is: Will this equipment be operated in any NAAQS nonattainment area? (See APCD website for NAAQS nonattainment area boundary map) 0 Yes ❑ No Normal Hours of Source Operation: 24 hours/day 7 days/week 52 weeks/year Seasonal use percentage: Dec-Feb: 25% Mar-May: 25% June-Aug: 25% Sept-Nov: 25% ;COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 2 I Department epMNbena?FanmlaM Permit Number: 12WE2039 AIRS ID Number: 123 /9950/003 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 4 - Engine Information Engine Function: O Primary and/or Peaking Power O Emergency(max. 500 hrs/year) El Compression O Pump Jack O Water Pump ❑ Other: What is the maximum number of hours this engine will be used for emergency back-up power? 0 hours/year Engine Make: Waukesha Engine Model: L7044 GSI Serial Number': 5283702572 What is the maximum designed horsepower rating? 1,680 hp What is the maximum manufacturer's site-rating? 1,680 hp kW What is the engine Brake Specific Fuel Consumption at 100% Load? 7,876 BTU/hp-hr Is this APEN reporting an AOS replacement engine? O Yes ❑✓ No If yes, provide the make, model, and serial number of the old engine below: Engine Make: Engine Model: Serial Number: Engine Features: Cycle Type: O 2-Stroke 0 4-Stroke Combustion: ❑ Lean Burn ❑✓ Rich Burn Aspiration: O Natural 0 Turbocharged Is this engine equipped with an Air/Fuel ratio controller(AFRC)? El Yes ❑ No If yes, what type of AFRC is in use? El O2 Sensor (mV) ❑NOX Sensor (ppm) O Other: Is this engine equipped with a Low-NOx design? O Yes ❑✓ No Engine Dates: What is the manufactured date of this engine? 02/2013 O If the following date information is not available, check this box, and this engine will be considered newly constructed and/or newly relocated into the state of Colorado based on the engine start-up date. What date was this engine ordered? 2013 What is the date this engine was first located to Colorado? 2013 What is the date this engine was first placed in service/operation? 2013 What is the date this engine commenced construction? 2013 What is the date this engine was last reconstructed or modified? N/A 'The serial number must be submitted if coverage under GP02 is requested. IIcO LORADO Form APCD-201 - Spark Ignition Engine AFN - Revision 07/2020 3 a 'a, Permit Number: 12WE2039 AIRS ID,Number: 123 /9950/003 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 5 - Geographical/Stack Information Geographical Coordinates (Latitude/Longitude or UTM) 40.464 / -104.430 Discharge Height Operator Temp. Flow Rate Velocity Above Ground Level Stack ID No. F)(' (ACFM) (ft/sec) (Feet) C-195 45 1,152 8,996 140 Indicate the direction of the Stack outlet: (check one) ❑✓ Upward O Downward O Upward with obstructing raincap ❑ Horizontal O Other(describe): Indicate the stack opening and size: (check one) ❑✓ Circular Interior stack diameter (inches): 14 ❑ Square/Rectangle Interior stack diameter (inches): Interior stack depth (inches): ❑ Other(describe): Section 6 - Fuel Data and Throughput Information ct ®ua Ue r c ® &r ecr CF Y , 13,232 96.98 115.91 From what year is the actual annual amount? 2019 Indicate the type of fuel used9: ❑ Pipeline Natural Gas (assumed fuel heating value of 1,020 BTU/scf) ❑ Field Natural Gas Heating value: BTU/scf ❑ Propane (assumed fuel heating value of 2,300 BTU/scf) ❑ Landfill Gas Heating Value: BTU/scf ❑✓ Other (describe): Residue Gas Heating Value (give units): 1,109 Btu/scf 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 9 If fuel heating value is different than the listed assumed value, provide this information in the"Other"field. _.. _....... _.... _.._^ -_.,. _.,. . __... _._.. _. _. .__.. .. .... .-„.,.__._ .. (COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 4 I IxE�„ ' , Permit Number: 12WE2039 AIRS ID Number: 123 /9950/003 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 7 - Criteria Pollutant Emissions Information Attach all emission calculations and emission factor documentation to this APEN form. The APCD website has a Natural Gas Fired Engines Calculator available to assist with emission calculations. Is any emission control equipment or practice used to reduce emissions? ❑✓ Yes O No If yes, describe the control equipment AND state the collection and control efficiencies: Control Equipment Collection Efficiency Control Efficiency Pollutant (%of total emissions captured by (%reduction of captured Description control equipment) emissions) TSP (PM) PMio PM2.s SOx NOx NSCR 100% 96% VOC NSCR 100% 53% CO NSCR 100% 91% Other: HAPs NSCR 100% HCHO-76%,Other HAPs-50% From what year is the following reported actual annual emissions data? 201 9 Use the following table to report the criteria pollutant emissions from source: Emission Factor Actual Annual Emissions Requested Annual Permit Pollutant Emission Limit(s)$ Uncontrolled Units Source Uncontrolled Controlled Uncontrolled Controlled Basis (AP-42, Emissions Emissions10 Emissions Emissions Mfg.)etc.) (tons/year) (tons/near) (tons/year) (tons/year) TSP (PM) 1.94E-02 Ib/MMBtu AP-42 1.04 1.04 1.12 1.12 PM10 1.94E-02 Ib/MMBtu AP-42 1.04 1.04 1.12 1.12 PM2.5 1.94E-02 Ib/MMBtu AP-42 1.04 1.04 1.12 1.12 SOx 5.88E-04 Ib/MMBtu AP-42 0.03 0.03 0.03 0.03 NOx 13.1 g/hp-hr Mfg. 197.18 7.53 212.52 8.11 VOC 1.5 g/hp-hr Mfg. 22.58 10.54 24.33 11.36 CO 11.7 g/hp-hr Mfg. 176.11 15.05 189.80 16.22 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. Section 8 - Non-Criteria Pollutant Emissions Information Does the emissions source have any uncontrolled actual emissions of non-criteria ❑✓ Yes ❑ No pollutants (e.g. HAP - hazardous air pollutant) equal to or greater than 250 lbs/year? If yes, use the following table to report the non-criteria pollutant(HAP)emissions from source: Chemical Emission Factor Actual Annual Emissions Abstract Source Uncontrolled Controlled Chemical Name Uncontrolled Service(CAS) Units- (AP-42, Emissions Emissions Number Basis Mfg.,etc.) Ohs/year) Ohs/year) Formaldehyde 50000 0.05 g/hp-hr Mfg. 1,505.21 361.25 Acetaldehyde 75070 2.79E-03 Ib/MMBtu AP-42 300.06 150.03 Acrolein 107028 2.63E-03 Ib/MMBtu AP-42 282.85 141.42 Benzene 71432 Other: Methanol 67561 3.06E-03 lb/MMBtu AP-42 329.69 164.55 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. ... . ..._.. _.... COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 5 I .*O =7,1116 m1 Permit Number: 12WE2039 AIRS ID Number: 123 /9950/003 [Leav€bl r:ic 4mless APCD has already assigned a permit n and AIRS ID] Section 9 - Applicant Certification I hereby certify that all information contained herein and information submitted with this application is complete, true, and correct. If this is a registration for coverage under General Permit GP02, I further certify that this source is and will be operated in full compliance with each condition of General Permit GP02. w .. Signature of Legally Authorized Person(not a vendor or consultant) Date Roshini Shankaran Senior Environmental Engineer Name(print) Title Check the appropriate box to request a copy of the: ®Draft permit prior to issuance ®Draft permit prior to public notice (Checking any of these boxes may result in an increased fee and/or processing time) This emission notice is valid for five(5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term,or when a reportable change is made (significant emissions increase, increase production, new equipment, change in fuel type, etc.).See Regulation No. 3, Part A, II.C. for revised APEN requirements. Semi this form along with $216.00 and the General For more information or assistance call: Permit registration fee of$2,118.75, if applicable, to: Small Business Assistance Program Colorado Department of Public Health and.Environment (303) 692-3175 Air Pollution Control Division OR APCD-SS-B1 (303) 692-3148 4300 Cherry Creek Drive South Denver, CO 80246-1530 APCD Main Phone Number (303)692-3150 Make check payable to: Colorado Department of Public Health and Environment deb//��W1++�}��r��..!;'-COLORADO \® Depavenexa al PobiJc Form APCD-201 - Spark Ignition Engine��°EN - Revision 07/2020 6 I ��!!!\� Spark Ignition i n _ Form - - Air Pollutant Emission Notice (APEN) and Application for Construction Permit All sections of this APEN and application must be completed for both new and existing facilities, including APEN updates. Incomplete APENs will be rejected and will require re-submittal. Your APEN will be rejected if it is filled out incorrectly, is missing information, or lacks payment for the filing fee. The re-submittal will require payment for a new filing fee. This APEN is to be used for spark ignition (e.g. gas-fired) reciprocating internal combustion engines (RICE). If your engine is a compression ignition engine (e.g. diesel-fired)or your emission unit does not fall into the RICE category, there may be a more specific APEN for your source (e.g. compression ignition engine, mining operations, asphalt plant, crusher/screen, etc.). In addition, the General APEN (Form APCD-200) is available if the specialty APEN options will not satisfy your reporting needs. A list of all available APEN forms can be found on the Air Pollution Control Division (APCD) website. This emission notice is valid for five (5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made (significant emissions increase, increase production, new equipment, change in fuel type, etc.). See Regulation No. 3, Part A, II.C. for revised APEN requirements. Permit Number: 12WE2039 AIRS ID Number: 123 / 9950 /004 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 1 - Administrative Information Company Name': DCP Operating Company, LP Site Name: Wells Ranch Compressor Station Site Location Site Location: NWNW Section 27, T6N, R63W County: Weld NAICS or SIC Code: 1311 Mailing Address: (Include Zip Code) 370 17th Street, Suite 2500 Denver, CO 80202 Contact Person: Roshini Shankaran Phone Number: 303-605-2039 Portable Source E-Mail Address2: Home Base: rshankaran@dcpmidstream.com 1 Use the full, legal company name registered with the Colorado Secretary of State. This is the company name that will appear on all documents issued by the APCD. Any changes will require additional paperwork. 2 Permits,exemption letters, and any processing invoices will be issued by the APCD via e-mail to the address provided. ICOLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 1 ik" enna „ Permit Number: 12WE2039 AIRS ID Number: 123 /9950/004 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 2 - Requested Action ❑ NEW permit OR newly-reported emission source (check one below) o STATIONARY source ❑ PORTABLE source ❑ Request coverage under a Construction Permit ❑ Request coverage under General Permit GP023 (Natural Gas Only) If General Permit coverage is requested, the General Permit registration fee of$2,118.75 must be submitted along with the APEN filing fee. -OR- ❑✓ MODIFICATION to existing permit (check each box below that applies) ❑ Change fuel or equipment ❑ Change company name4 O Add point to existing permit ❑✓ Change permit limit O Transfer of ownerships ❑✓ Other (describe below) -OR- ❑ APEN submittal for update only (Note blank APENs will not be accepted) -ADDITIONAL PERMIT ACTIONS - ❑ APEN submittal for permit-exempt/grandfathered source ❑ Notification of Alternate Operating Scenario (AOS) permanent replacement6 Additional Info Er Notes: Splitting grouped emissions limits for C-193, C-194, C-195, C-196 evenly between the four compressor engines 3 Only one engine may be reported per APEN for GP02 coverage. Coverage under GP02 is voluntary. 4 For company name change, a completed Company Name Change Certification Form (Form APCD-106) must be submitted. 5 For transfer of ownership, a completed Transfer of Ownership Certification Form (Form APCD-104)must be submitted. 6 This does not apply to General Permit GP02, as it does not contain a provision for AOS permanent replacements. Section 3 - General Information Does this engine have a Company Equipment Identification No. (e.g. ENG-1,Engine 3, etc.)? Yes If yes, provide the Company Equipment Identification No.: C-196 General description of equipment and purpose: Natural gas compression For existing sources, operation began on: 10/25/2013 For new or reconstructed sources, the projected start-up date is: Will this equipment be operated in any NAAQS nonattainment area? (See APCD website for NAAQS nonattainment area boundary map) Yes El No Normal Hours of Source Operation: 24 hours/day 7 days/week 52 weeks/year Seasonal use percentage: Dec-Feb: 25% Mar-May: 25% June-Aug: 25% Sept-Nov: 25% COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 2 De eEnm�';'ac, Permit Number: 12WE2039 AIRS ID Number: 123 /9950/004 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 4 - Engine Information Engine Function: ❑ Primary and/or Peaking Power ❑ Emergency(max. 500 hrs/year) ❑✓ Compression O Pump Jack O Water Pump O Other: What is the maximum number of hours this engine will be used for emergency back-up power? 0 hours/year Engine Make: Waukesha Engine Model: L7044 GSI Serial Number': 5283701688 What is the maximum designed horsepower rating? 1,680 hp What is the maximum manufacturer's site-rating? 1,680 hp kW What is the engine Brake Specific Fuel Consumption at 100% Load? 7,876 BTU/hp-hr Is this APEN reporting an AOS replacement engine? O Yes ❑✓ No If yes, provide the make, model, and serial number of the old engine below: Engine Make: Engine Model: Serial Number: Engine Features: Cycle Type: ❑ 2-Stroke ❑✓ 4-Stroke Combustion: O Lean Burn ❑✓ Rich Burn Aspiration: ❑ Natural ❑✓ Turbocharged Is this engine equipped with an Air/Fuel ratio controller (AFRC)? ❑✓ Yes O No If yes, what type of AFRC is in use? ❑✓ O2 Sensor(mV) ❑NOx Sensor(ppm) ❑ Other: Is this engine equipped with a Low-NOx design? O Yes ❑✓ No Engine Dates: What is the manufactured date of this engine? 01/2012 ❑ If the following date information is not available, check this box, and this engine will be considered newly constructed and/or newly relocated into the state of Colorado based on the engine start-up date. What date was this engine ordered? 2012 What is the date this engine was first located to Colorado? 2012 What is the date this engine was first placed in service/operation? 2012 What is the date this engine commenced construction? 2012 What is the date this engine was last reconstructed or modified? N/A 7 The serial number must be submitted if coverage under GP02 is requested. COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 3 1 eN" „`� J Heai-A6Enwonmwrt Permit Number: 12WE2039 AIRS ID Number: 123 /9950/004 [Leave blank unless APCD has already assigned a permit#and AIRS ID] Section 5 - Geographical/Stack Information Geographical Coordinates (Latitude/Longitude or UTM) 40.464 / -104.430 Discharge Height Operator; L Temp. Flow Rate Velocity Above Ground evel Stack ID No. (° ) (ACFM) ,(ft/sec) C-196 45 1,152 8,996 140 Indicate the direction of the Stack outlet: (check one) ❑✓ Upward O Downward O Upward with obstructing raincap ❑ Horizontal ❑ Other (describe): Indicate the stack opening and size: (check one) ❑✓ Circular Interior stack diameter(inches): 14 ❑Square/Rectangle Interior stack diameter(inches): Interior stack depth (inches): ❑Other(describe): Section 6 - Fuel Data and Throughput Information Fuel Use Rate®100%Load w; Actual Annual Fuel Use Requested Annual Permit Limit8 (Set/hour) -(MMSCF/year) =(MMSCF/year). 13,232 95.48 115.91 From what year is the actual annual amount? 2019 Indicate the type of fuel used9: ❑ Pipeline Natural Gas (assumed fuel heating value of 1,020 BTU/scf) ❑ Field Natural Gas Heating value: BTU/scf ❑ Propane (assumed fuel heating value of 2,300 BTU/scf) ❑ Landfill Gas. Heating Value: BTU/scf ❑✓ Other(describe): Residue Gas Heating Value (give units): 1,109 Btu/scf 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 9 If fuel heating value is different than the listed assumed value, provide this information in the"Other"field. COLORADO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 4 Nt.,Vx E°;h.`,. Permit Number: 12WE2039 AIRS ID Number: 123 /9950/004 [Leave blank unless APCD has already assigned a perm:'tt and AIRS ID] Section 7 - Criteria Pollutant Emissions Information Attach all emission calculations and emission factor documentation to this APEN form. The APCD website has a Natural Gas Fired Engines Calculator available to assist with emission calculations. Is any emission control equipment or practice used to reduce emissions? ❑✓ Yes O No If yes, describe the control equipment AND state the collection and control efficiencies: Control Equipment Collection Efficiency Control Efficiency Pollutant (%of total emissions captured by (%reduction of captured Description control equipment) : emissions) TSP (PM) PM10 PM2.5 SOx NOx NSCR 100% 96% VOC NSCR 100% 53% CO NSCR 100% 91% Other: HAPs NSCR 100% HCHO-76%,Other HAPs-50% From what year is the following reported actual annual emissions data? 201 9 Use the following table to report the criteria pollutant emissions from source: Emission Factor Actual Annual Emissions Requested Annual Permit Pollutant Emission Limit(s)8 Uncontrolled Units Source Uncontrolled Controlled Uncontrolled Controlled Basis (AP-42, Emissions Emissions10 Emissions Emissions Mfg.,etc.) (tons/year) (tons/Year) (tons/year) (tons/year) TSP (PM) 1.94E-02 Ib/MMBtu AP-42 1.03 1.03 1.12 1.12 PM10 1.94E-02 Ib/MMBtu AP-42 1.03 1.03 1.12 1.12 PM2.5 1.94E-02 Ib/MMBtu AP-42 1.03 1.03 1.12 1.12 SOx 5.88E-04 Ib/MMBtu AP-42 0.03 0.03 0.03 0.03 NOx 13.1 g/hp-hr Mfg. 194.01 7.41 212.52 8.11 VOC 1.5 g/hp-hr Mfg. 22.22 10.37 24.33 11.36 CO 11.7 g/hp-hr Mfg. 173.28 14.81 189.80 16.22 8 Requested values will become permit limitations or will be evaluated for exempt status, as applicable, and should consider future process growth. Requested values are required on all APENs, including APEN updates. 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. Section 8 - Non-Criteria Pollutant Emissions Information Does the emissions source have any uncontrolled actual emissions of non-criteria0 Yes O No pollutants (e.g. HAP- hazardous air pollutant)equal to or greater than 250 lbs/year? If yes, use the following table to report the non-criteria pollutant (HAP)emissions from source: Chemical Emission Factor I Actual Annual Emissions Abstract Source Uncontrolled Controlled Chemical Name Uncontrolled Service(CAS) Units (AP-42, Emissions Emissions Basis Number Mfg:,etc.)' (lbs/year) (lbs/year) Formaldehyde 50000 0.05 g/hp-hr Mfg. 1,481.03 355.45 Acetaldehyde 75070 2.79E-03 Ib/MMBtu AP-42 295.23 147.62 Acrolein 107028 2.63E-03 Ib/MMBtu AP-42 278.30 139.15 Benzene 71432 Other: Methanol 67561 3.06E-03 Ib/MMBtu AP-42 323,81 161.90 10 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide projected emissions. :COLORA DO Form APCD-201 - Spark Ignition Engine APEN - Revision 07/2020 5 I H'=.= Permit Number: 12WE2039 AIRS ID Number: 123 /9950/004 [Leave blank unless APCO has already assigned a verrna a and AIRS IDI Section 9 - Applicant Certification I hereby certify that all information contained herein and information submitted with this application is complete, true, and correct. if this is a registration for coverage under General Permit GP02, I further certify that this source is and will be operated in full compliance with each condition of General Permit GP0Z. • t'"' Signature of Legally Authorized Person (not a vendor or consultant) Date Roshini Shankaran Senior Environmental Engineer Name(print) Title Check the appropriate box to request a copy of the: Draft permit prior to issuance El Draft permit prior to public notice (Checking any of these boxes may result in an increased fee and/or processing time) This emission notice is valid for five(5)years. Submission of a revised APEN is required 30 days prior to expiration of the five-year term, or when a reportable change is made(significant emissions increase, increase production, new equipment, change in fuel type,etc.). See Regulation No. 3, Part A, II.C. for revised APEN requirements. Send this form along with$216.00 and the General For more information or assistance call: Permit registration fee of$2,118.75, if applicable, to: Small Business Assistance Program Colorado Department of Public Health and Environment (303)692-3175 Air Pollution Control Division OR APCD-SS-81 (303)692-3148 4300 Cherry Creek Drive South Denver, CO 80246-1530 APCD Main Phone Number (303)692-3150 Make check payable to: Colorado Department of Public Health and Environment 4414, COLORADO Form APCD-201 - Spark Ignition Engine APEN • Revision 07/2020 6 I 7° ,„1171,." , Hello