HomeMy WebLinkAbout20202106.tiff C _y.....„., COLORADO
Department of Public
Health&Environment
Weld County - Clerk to the Board
1150O St
PO Box 758 RECEIVED
Greeley, CO 80632
May 18, 2020 MAY 26 2020
WELD COUNTY
COMMISSIONERS
Dear Sir or Madam:
On May 19, 2020, the Air Pollution Control Division will begin a 30-day public notice period for Noble
Energy, Inc. - Wells Ranch AA25 Et 26 Econode. 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
X11 CaGr
4300 Cherry Creek Drive S., Denver,CO 80246-1530 P 303-692-2000 www.cotorado.gov/cdphe I „�9_
Jared Polls,Governor I Jill Hunsaker Ryan,MPH, Executive Director t�* *'
Public �ete1 CC:PLCTP), HLCJ T), 1111
C yM R I C 1-1 /C i ) 2020-2106
Or7 I o7O/Do
<MYM Air Pollution Control Division
Notice of a Proposed Project or Activity Warranting Public
CMCOP E
Comment
Website Title: Noble Energy, Inc. - Wells Ranch AA25 Et 26 Econode - Weld County
Notice Period Begins: May 19, 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: Noble Energy, Inc.
Facility: Wells Ranch AA25 Et 26 Econode
Oil and gas well production facility
SWNW Sec 25, T6N, R63W
Weld County
The proposed project or activity is as follows: Applicant is requesting a permit modification to an existing
source of gas flaring from low pressure separators and is adding a new source of gas flaring from vapor
recovery towers. Permit includes new synthetic minor limits for NA NSR.
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 19WE0545 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.gov/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:
Bradley Eades
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South, APCD-SS-B1
Denver, Colorado 80246-1530
IS6! COLORADO
Department at Public
1 I Health&Environment
COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
CONSTRUCTION PERMIT
Permit number: 19WE0545 Issuance: 1
Date issued:
Issued to: Noble Energy Inc.
Facility Name: WELLS RANCH AA25 Et 26 ECONODE
Plant AIRS ID: 123/9586
Physical Location: SWNW SEC 25 T6N R63W
County: Weld County
Description: Well Production Facility
Equipment or activity subject to this permit:
Equipment AIRS Emissions Control
Equipment Description
ID Point Description
VRT Gas Venting of gas from two (2) vapor recovery
Stream 022 towers (VRTs) to enclosed combustor(s) Enclosed Flare
during VRU downtime
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
this specific general terms and conditions included in this document and the following specific terms
and conditions.
REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION
1. YOU MUST notify the Air Pollution Control Division (the Division) no later than fifteen days of
the latter of commencement of operation or issuance of this permit, by submitting a Notice of
Startup form to the Division for the equipment covered by this permit. The Notice of Startup
form may be downloaded online at www.colorado.gov/cdphe/air/manage-permit. Failure to
notify the Division of startup of the permitted source is a violation of Air Quality Control
Commission (AQCC) Regulation Number 3, Part B, Section III.G.1. and can result in the
revocation of the permit.
2. Within one hundred and eighty days (180) of the latter of commencement of operation or
issuance of this permit, compliance with the conditions contained in this permit must be
demonstrated to the Division. It is the owner or operator's responsibility to self-certify
compliance with the conditions. Failure to demonstrate compliance within 180 days may
result in revocation of the permit. A self certification form and guidance on how to self-
certify compliance as required by this permit may be obtained online at
Page 1 of 10
C ).1...
COLORADO
zre Air Pollution Control Division
Department of Pubic Health b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
www.colorado.gov/cdphe/air-permit-self-certification. (Regulation Number 3, Part B, Section
III.G.2.)
3. This permit must expire if the owner or operator of the source for which this permit was
issued: (i) does not commence construction/modification or operation of this source within 18
months after either, the date of issuance of this construction permit or the date on which
such construction or activity was scheduled to commence as set forth in the permit
application associated with this permit; (ii) discontinues construction for a period of eighteen
months or more; (iii) does not complete construction within a reasonable time of the
estimated completion date. The Division may grant extensions of the deadline. (Regulation
Number 3, Part B, Section III.F.4.)
I.F.4.)
4. The operator must complete all initial compliance testing and sampling as required in this
permit and submit the results to the Division as part of the self-certification process.
(Regulation Number 3, Part B, Section III.E.)
5. The operator must retain the permit final authorization letter issued by the Division, after
completion of self-certification, with the most current construction permit. This construction
permit alone does not provide final authority for the operation of this source.
EMISSION LIMITATIONS AND RECORDS
6. Emissions of air pollutants must not exceed the following limitations. (Regulation Number 3,
Part B, Section II.A.4.)
)
Annual Limits:
AIRS Tons per Year Emission
Equipment ID Point PM2.5 NOX VOC CO Type
VRT Gas 022 --- --- 1.7 --- Point
Stream
Note: See"Notes to Permit Holder"for information on emission factors and methods used to calculate limits.
Facility-wide emissions of each individual hazardous air pollutant must not exceed 8.0 tons
per year.
Facility-wide emissions of total hazardous air pollutants must not exceed 20.0 tons per year.
The facility-wide emissions limitation for hazardous air pollutants must apply to all permitted
emission units at this facility.
Compliance with the annual limits, for both criteria and hazardous air pollutants, must 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 must
calculate actual emissions each month and keep a compliance record on site or at a local
field office with site responsibility for Division review.
Page 2 of 10
14c, „ COLORADO
Air Pollution Control Division
Department of public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
7. The owner or operator must use the emission factors found in "Notes to Permit Holder" to
calculate emissions and show compliance with the limits. The owner or operator must submit
an Air Pollutant Emission Notice (APEN) and receive a modified permit prior to the use of any
other method of calculating emissions.
8. The owner or operator must track emissions from all insignificant activities at the facility on
an annual basis to demonstrate compliance with the facility potential emission limitations as
indicated below. An inventory of each insignificant activity and associated emission
calculations must be made available to the Division for inspection upon request. For the
purposes of this condition, insignificant activities are defined as any activity or equipment,
which emits any amount but does not require an Air Pollution Emission Notice (APEN) or is
permit exempt. (Regulation 3, Part C. II.E.)
Total potential emissions from the facility, including all permitted emissions and potential to
emit from all insignificant activities, must be less than:
• 50 tons per year of VOC
9. The emission points in the table below must be operated and maintained with the emissions
control equipment as listed in order to reduce emissions to less than or equal to the limits
established in this permit. (Regulation Number 3, Part B, Section III.E.)
Equipment AIRS Control Device Pollutants
ID Point Controlled
VRT Gas Emissions from the vapor recovery towers
Stream 022 (VRTs) are routed to an Enclosed Flare VOC and HAP
during Vapor Recovery Unit (VRU) downtime
PROCESS LIMITATIONS AND RECORDS
10. This source must be limited to the following maximum processing rates as listed below.
Monthly records of the actual processing rates must be maintained by the owner or operator
and made available to the Division for inspection upon request. (Regulation Number 3, Part B,
II.A.4.)
Process Limits
Equipment ID AIRS Process Parameter Annual Limit
Point
VRT Gas Venting of gas from vapor
Stream 022 recovery towers (VRTs) to 0.71 MMSCF
enclosed combustors
Compliance with the annual throughput limits must 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
Page 3 of 10
COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
previous twelve months' data. The permit holder must calculate throughput each month and
keep a compliance record on site or at a local field office with site responsibility, for Division
review.
11. The owner or operator must continuously monitor and record the volumetric flow rate of
natural gas vented from the vapor recovery tower (VRT) using a flow meter. The flow meter
must be calibrated and maintained per the manufacturer's specifications and schedule. The
owner or operator must use monthly throughput records to demonstrate compliance with the
process limits contained in this permit and to calculate emissions as described in this permit.
STATE AND FEDERAL REGULATORY REQUIREMENTS
12. The permit number and ten digit AIRS ID number assigned by the Division (e.g. 123/4567/001)
must be marked on the subject equipment for ease of identification. (Regulation Number 3,
Part B, Section III.E.) (State only enforceable)
13. This source is subject to the odor requirements of Regulation Number 2. (State only
enforceable)
14. No owner or operator of a smokeless flare or other flare for the combustion of waste gases must
allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30%
opacity for a period or periods aggregating more than six minutes in any sixty consecutive
minutes. (Regulation Number 1, Section II.A.5.)
OPERATING £t MAINTENANCE REQUIREMENTS
15. Upon startup of these points, the owner or operator must follow the most recent 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 the OEM plan are subject to Division approval prior to implementation. (Regulation
Number 3, Part B, Section III.G.7.)
COMPLIANCE TESTING AND SAMPLING
Initial Testing Requirements
16. The owner or operator must demonstrate compliance with opacity standards, using EPA
Reference Method 22, 40 C.F.R. Part 60, Appendix A, to determine the presence or absence
of visible emissions. "Visible Emissions" means observations of smoke for any period or
periods of duration greater than or equal to one minute in any fifteen minute period during
normal operation. (Regulation Number 7, Sections XVII.B.2. and XVII.A.17)
17. The owner/operator must complete an initial site specific extended gas analysis ("Analysis")
within one hundred and eighty days (180) after commencement of operation or issuance of
this permit, whichever comes later, of the natural gas vented from this emissions unit in
order to verify the VOC content (weight fraction) of this emission stream. Results of the
Analysis must be used to calculate site-specific emission factors for VOC (in units of lb/MMSCF
gas vented) using Division approved methods. Results of the Analysis must be submitted to
Page 4 of 10
�r�: .� COLORADO
W.� ./ Air Pollution Control Division
Department of Public Health b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
the Division as part of the self-certification and must demonstrate the emissions factors
established through the Analysis are less than or equal to, the emissions factors submitted
with the permit application and established herein in the "Notes to Permit Holder" for this
emissions point. If any site-specific emissions factor developed through this Analysis is greater
than the emissions factors submitted with the permit application and established in the
"Notes to Permit Holder" the operator must submit to the Division within 60 days, or in a
timeframe as agreed to by the Division, a request for permit modification to address these
inaccuracies.
Periodic Testing Requirements
18. On an annual basis, the owner/operator must complete a site specific extended gas analysis
("Analysis") of the natural gas vented from this emissions unit in order to verify the VOC
content (weight fraction) of this emission stream. Results of the Analysis must be used to
calculate site-specific emission factors for VOC (in units of lb/MMSCF gas vented) using
Division approved methods. Results of the Analysis must be used to demonstrate that the
emissions factor established through the Analysis are less than or equal to, the emission
factor submitted with the permit application and established herein in the "Notes to Permit
Holder" for this emissions point. If any site specific emissions factor developed through this
Analysis is greater than the emissions factor submitted with the permit application and
established in the "Notes to Permit Holder" the operator must submit to the Division within
60 days, or in a timeframe as agreed to by the Division, a request for permit modification to
address this/these inaccuracy(ies).
ADDITIONAL REQUIREMENTS
19. All previous versions of this permit are cancelled upon issuance of this permit.
20. A revised Air Pollutant Emission Notice (APEN) must 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
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 submitted; or
Page 5 of 10
Cy,tla
COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
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.
21. Federal regulatory program requirements (i.e. PSD, NANSR) must apply to this source at any
such time that this source becomes major solely by virtue of a relaxation in any permit
condition. Any relaxation that increases the potential to emit above the applicable Federal
program threshold will require a full review of the source as though construction had not yet
commenced on the source. The source must not exceed the Federal program threshold until
a permit is granted. (Regulation Number 3, Parts C and D).
GENERAL TERMS AND CONDITIONS
22. 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.
23. 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.
24. 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
Page 6 of 10
�•:».. 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
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.
25. 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.
26. 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 must constitute a rejection of the entire permit
and upon such occurrence, this permit must 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.
27. 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
Division in writing requesting a cancellation of the permit. Upon notification, annual fee
billing will terminate.
28. 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:
Bradley Eades
Permit Engineer
Permit History
Issuance Date Description
Issuance 1 This Issuance Initial Approval issued to Noble Energy, Inc.
New synthetic minor permit
Page 7 of 10
r•:�r 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
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 must 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
control 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 must 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 sources operates at the permitted
limitations.
Equipment AIRS Uncontrolled Controlled
ID Point Pollutant CAS # Emissions Emissions
(lb/yr) (lb/yr)
Benzene 71432 799 40
Toluene 108883 509 25
VRT Gas Ethylbenzene 100414 36 2
Stream 022 Xylenes 1330207 171 9
n-Hexane 110543 4,644 241
2,2,4-
540841
Trimethylpentane 195 10
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.
Page 8 of 10
r:•".- COLORADO
410 4460 Air Pollution Control Division
Department of Public Health b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
5) The emission levels contained in this permit are based on the following emission factors:
Uncontrolled Controlled
CAS # Pollutant Weight% Emission Emission Source
Factors Factors
(lb/MMSCF) (lb/MMSCF)
VOC 77.70 93,054.43 4,690.41
71432 Benzene 0.94 1,128.25 56.43 ProMax
108883 Toluene 0.60 718.67 35.96
110543 n-Hexane 5.47 6,555.83 340.13
Note: Emission factors are based on ProMax modeled gas composition (MW: 45.3)and the standard molar volume of
an ideal gas (379 scf/lbmol). The controlled emissions factors for this point are based on a control
efficiency of 95%.
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 must be submitted no later than 30 days before the five-year term expires. Please
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) This facility is classified as follows:
Applicable Status
Requirement
Operating Permit Synthetic Minor Source of: VOC, CO, HAP
NANSR Synthetic Minor Source of: VOC
8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be
found at the following website: http://www.ecfr.gov/
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
Page 9 of 10
�r�•:���- COLORADO
_" j Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
MACT 63.8980-End Subpart NNNNN - Subpart XXXXXX
•
•
Page 10 of 10
410
COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
CONSTRUCTION PERMIT
Permit number: 14WE0968 Issuance: 2
Date issued:
Issued to: Noble Energy Inc.
Facility Name: WELLS RANCH AA25 £t 26 ECONODE
Plant AIRS ID: 123/9586
Physical Location: SWNW SEC 25 T6N R63W
County: Weld County
Description: Well Production Facility
Equipment or activity subject to this permit:
Equipment AIRS Equipment Description Emissions Control
ID Point Description
Venting of gas from low pressure (LP)
LP FLARE 012 separators to an open flare during VRU Open Flare
downtime.
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
this specific general terms and conditions included in this document and the following specific terms
and conditions.
REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION
1. Within one hundred and eighty days (180) of the latter of commencement of operation or
issuance of this permit, compliance with the conditions contained in this permit must be
demonstrated to the Division. It is the owner or operator's responsibility to self-certify
compliance with the conditions. Failure to demonstrate compliance within 180 days may
result in revocation of the permit. A self certification form and guidance on how to self-
certify compliance as required by this permit may be obtained online at
www.colorado.gov/cdphe/air-permit-self-certification. (Regulation Number 3, Part B, Section
III.G.2.)
2. The operator must complete all initial compliance testing and sampling as required in this
permit and submit the results to the Division as part of the self-certification process.
(Regulation Number 3, Part B, Section III.E.)
Page 1 of 10
� r•:•» COLORADO
'� Air Pollution Control Division
Department of Public Heath b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
3. The operator must retain the permit final authorization letter issued by the Division, after
completion of self-certification, with the most current construction permit. This construction
permit alone does not provide final authority for the operation of this source.
EMISSION LIMITATIONS AND RECORDS
4. Emissions of air pollutants must not exceed the following limitations. (Regulation Number 3,
Part B, Section II.A.4.)
Annual Limits:
AIRS Tons per Year Emission
Equipment ID
Point PM2.5 NO), VOC CO Type
LP FLARE 012 --- --- 5.7 --- Point
Note: See"Notes to Permit Holder"for information on emission factors and methods used to calculate limits.
Facility-wide emissions of each individual hazardous air pollutant must not exceed 8.0 tons
per year.
Facility-wide emissions of total hazardous air pollutants must not exceed 20.0 tons per year.
The facility-wide emissions limitation for hazardous air pollutants must apply to all permitted
emission units at this facility.
Compliance with the annual limits, for both criteria and hazardous air pollutants, must 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 must
calculate actual emissions each month and keep a compliance record on site or at a local
field office with site responsibility for Division review.
5. The owner or operator must use the emission factors found in "Notes to Permit Holder" to
calculate emissions and show compliance with the limits. The owner or operator must submit
an Air Pollutant Emission Notice (APEN) and receive a modified permit prior to the use of any
other method of calculating emissions.
6. The owner or operator must track emissions from all insignificant activities at the facility on
an annual basis to demonstrate compliance with the facility potential emission limitations as
indicated below. An inventory of each insignificant activity and associated emission
calculations must be made available to the Division for inspection upon request. For the
purposes of this condition, insignificant activities are defined as any activity or equipment,
which emits any amount but does not require an Air Pollution Emission Notice (APEN) or is
permit exempt. (Regulation 3, Part C. II.E.)
Total potential emissions from the facility, including all permitted emissions and potential to
emit from all insignificant activities, must be less than:
• 50 tons per year of VOC
Page 2 of 10
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
7. The emission points in the table below must be operated and maintained with the emissions
control equipment as listed in order to reduce emissions to less than or equal to the limits
established in this permit. (Regulation Number 3, Part B, Section III.E.)
Equipment AIRS Pollutants
ID Point Control Device Controlled
Emissions from the low pressure (LP)
LP FLARE 012 separators are routed to an Open Flare VOC and HAP
during Vapor Recovery Unit (VRU) downtime
PROCESS LIMITATIONS AND RECORDS
8. This source must be limited to the following maximum processing rates as listed below.
Monthly records of the actual processing rates must be maintained by the owner or operator
and made available to the Division for inspection upon request. (Regulation Number 3, Part B,
II.A.4.)
Process Limits
Equipment ID AIRS Process Parameter Annual Limit
Point
LP FLARE 012 Venting of gas from low pressure 3.27 MMSCF
(LP) separators to flare
Compliance with the annual throughput limits must 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 must calculate throughput each month and
keep a compliance record on site or at a local field office with site responsibility, for Division
review.
9. The owner or operator must continuously monitor and record the volumetric flow rate of
natural gas vented from the low pressure (LP) separators to the flare using a flow meter. The
flow meter must be calibrated and maintained per the manufacturer's specifications and
schedule. The owner or operator must use monthly throughput records to demonstrate
compliance with the process limits contained in this permit and to calculate emissions as
described in this permit.
STATE AND FEDERAL REGULATORY REQUIREMENTS
10. The permit number and ten digit AIRS ID number assigned by the Division (e.g. 123/4567/001)
must be marked on the subject equipment for ease of identification. (Regulation Number 3,
Part B, Section III.E.) (State only enforceable)
11. This source is subject to the odor requirements of Regulation Number 2. (State only
enforceable)
Page 3 of 10
C .A.,-
COLORADO
NW Air Pollution Control Division
Department of Public Health El Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
12. No owner or operator of a smokeless flare or other flare for the combustion of waste gases must
allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30%
opacity for a period or periods aggregating more than six minutes in any sixty consecutive
minutes. (Regulation Number 1, Section II.A.5.)
OPERATING £t MAINTENANCE REQUIREMENTS
13. Upon startup of these points, the owner or operator must follow the most recent operating
and maintenance (O&M) 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 the O&M plan are subject to Division approval prior to implementation. (Regulation
Number 3, Part B, Section III.G.7.)
COMPLIANCE TESTING AND SAMPLING
Initial Testing Requirements
14. This source is not required to conduct initial testing, unless otherwise directed by the Division
or other state or federal requirement.
Periodic Testing Requirements
15. On an annual basis, the owner/operator must complete a site specific extended gas analysis
("Analysis") of the natural gas vented from this emissions unit in order to verify the VOC
content (weight fraction) of this emission stream. Results of the Analysis must be used to
calculate site-specific emission factors for the pollutants referenced in this permit (in units of
lb/MMSCF gas vented) using Division approved methods. Results of the Analysis must be used
to demonstrate that the emissions factor established through the Analysis are less than or
equal to, the emission factor submitted with the permit application and established herein in
the "Notes to Permit Holder" for this emissions point. If any site specific emissions factor
developed through this Analysis is greater than the emissions factor submitted with the
permit application and established in the "Notes to Permit Holder" the operator must submit
to the Division within 60 days, or in a timeframe as agreed to by the Division, a request for
permit modification to address this/these inaccuracy(ies).
ADDITIONAL REQUIREMENTS
16. All previous versions of this permit are cancelled upon issuance of this permit.
17. A revised Air Pollutant Emission Notice (APEN) must 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:
Page 4 of 10
C40
00LORADO
Air Pollution Control Division
�i�L� Department of Public Heath b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
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 (NOx) in ozone
nonattainment areas emitting less than 100 tons of VOC or NOx 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
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 submitted; 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.
18. Federal regulatory program requirements (i.e. PSD, NANSR) must apply to this source at any
such time that this source becomes major solely by virtue of a relaxation in any permit
condition. Any relaxation that increases the potential to emit above the applicable Federal
program threshold will require a full review of the source as though construction had not yet
commenced on the source. The source must not exceed the Federal program threshold until
a permit is granted. (Regulation Number 3, Parts C and D).
GENERAL TERMS AND CONDITIONS
19. 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.
20. 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
Page 5 of 10
COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
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.
21. 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.
22. 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.
23. 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 must constitute a rejection of the entire permit
and upon such occurrence, this permit must 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.
24. 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
Division in writing requesting a cancellation of the permit. Upon notification, annual fee
billing will terminate.
25. 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:
Bradley Eades
Permit Engineer
Permit History
Page 6 of 10
:4, COLORADO
Air Pollution Control Division
Department of Public Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
Issuance Date Description
Issuance 1 January 22, Issued to Noble Energy, Inc. Newly permitted
2015 separator flare at a synthetic minor facility.
Issuance 2 This Issuance Issued to Noble Energy, Inc.
Modification to reduce emission limits and update
emission factors. New synthetic minor limits
Page 7 of 10
C ry:. 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
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 must 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
control 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 must 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 sources operates at the permitted
limitations.
Equipment AIRS Uncontrolled Controlled
ID Point Pollutant CAS # Emissions Emissions
(lb/yr) (lb/yr)
Benzene 71432 2,203 110
Toluene 108883 1,501 75
Ethylbenzene 100414 115 6
LP FLARE 012 Xylenes 1330207
540 27
n-Hexane 110543 12,813 643
2,2,4-
540841
Trimethylpentane 562 28
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.
Page 8 of 10
C/ COLORADO
w Air Pollution Control Division
Department of Public Health b Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
5) The emission levels contained in this permit are based on the following emission factors:
Uncontrolled Controlled
CAS # Pollutant Weight% Emission Emission Source
Factors Factors
(lb/MMSCF) (lb/MMSCF)
VOC 59.41 68,652.30 3432.61
71432 Benzene 0.72 673.48 33.67
108883 Toluene 0.49 458.89 22.95
1330207 Xylenes 0.18 165.07 8.25 ProMax
110543 n-Hexane 4.19 3,917.82 196.56
2,2,4- 0.18 171.96 8.60
540841
Trimethylpentane
Note: Emission factors are based on ProMax modeled gas composition (MW: 35.4) and the standard molar volume of
an ideal gas (379 scf/lbmol). The controlled emissions factors for this point are based on a control
efficiency of 95%.
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 must be submitted no later than 30 days before the five-year term expires. Please
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) This facility is classified as follows:
Applicable Status
Requirement
Operating Permit Synthetic Minor Source of: VOC, CO, HAP
NANSR Synthetic Minor Source of: VOC
8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be
found at the following website: http://www.ecfr.gov/
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
Page 9 of 10
C r COLORADO
Air Pollution Control Division
Department of Public Health Er Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
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 10 of 10
Colorado Air Permitting Project
PRELIMINARY ANALYSIS-PROJECT SUMMARY
Project Details
Review Engineer: Timothy Sharp Brad Eades as of 3/30/2020
Package s: 398605
Received Date: 5/3/2019
Review Start Date: 7/1/2019
Section 01-Facility Information
Company Name: Noble Energy,Inc. Quadrant Section Township Range
County AIRS ID: 123 SWNW 25 6N 63
Plant AIRS ID: 9586
Facility Name: WELLS RANCH AA25&26 ECONODE
Physical
Address/Location:
County: Weld County
Type of Facility: Exploration&Production Well Pad
What industry segment?Oil&Natural Gas Production&Processing
Is this facility located in a NAAOS non-attainment area? Yes
If yes,for what pollutant? 0 Carbon Monoxide(CO) 0 Particulate Matter(PM) Q Ozone(N0x S V0C)
Section 02-Emissions Units In Permit Application
Emissions Self Cert Engineering
AIRs Point fi Emissions Source Type Equipment Name Permit# Issuance S Action
Control? Required? Remarks
Permit -
012 Separator Venting LP Flare Yes 14WE0968 2 Yes Modification
Permit Initial-
022 Separator Venting VRT BURNER Yes 19WE0545 1 Yes Issuance
Section 03-Description of Project
Applicant is requested a permit modification for existing permit 14WE0938 to reduce throughput and emission limits and update emission factors based on site-specific
sampling for venting of gas from low pressure(LP)separators.
In addition,applicant is requesting a permit for a newly permitted point for vapor recovery tower(VRT)venting.Source proposes to combust gas from the VRT during compressor downtime.
Source indicates that VRT is existing equipment at the site,but was only recently determined to require a permit.
Public notice is required for both permits since applicant is establishing new synthetic minor limits for the NA NSR Major Source threshold(i.e.<50 tpy VOC).As of January 27,2020,
(Colorado's nonattainment redesignation to Serious)this site had potential to emit>50 tpy VOC based on eforceable limits and was/is a Major Source until issuance of this permit.
On 5/5/2020,upon review of the draft permit,applicant provided revised calculations and a new site-specific sample for the LP gas stream(point 012).The analysis herein is based on the
calculations received 5/5/2020.
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) 0 0 0 Q 0 0
Title V Operating Permits(OP) 0 0 Q ❑J 0 0 0 Q
Non-Attainment New Source Review(NANSR) ❑ Q
Is this stationary source a major source? No
If yes,explain what programs and which pollutants hart 5O2 NOx CO VOC PM2.5 PM10 TSP HAPs
Prevention of Significant Deterioration(PSD) 0 0 0 0 0 0
Title V Operating Permits(OP) 0 0 0 0 0 0 0 0
Non-Attainment New Source Review(NANSR) ❑ 0
Section 01-Administrative Information
Facility AlRs ID: 123 9586 012
County Plant Point
Section 02-Equipment Description Details
Detailed Emissions Unit Description: Venting of gas from low pressure(LP)separators during VRU downtime
Emission Control Device Description: Enclosed flare
Requested Overall VOC&HAP Control Efficiency%: 95
Limited Process Parameter
Gas meter `
Section 03-Processing Rate Information for Emissions Estimates
Primary Emissions-Separator
Actual Throughput=. MMscf per year
Requested Permit Limit Througfqcut= - 3.27 MMscf per year Requested Monthly Throughput= 0,3 MMscf per month
Potential to Emit(PTE)Throughput= _7 MMscf per year
Secondary Emissions-Combustion Device(s)for Air Pollution Control
Separator Gas Heating Value: 2161.0 Btu/scf *from site-specific gas analysis 3/2/20
Volume of waste gas emitted per BBL of
liquids throughput: scf/bbl
EMEOZSOffifi
Control Device
Pilot Fuel Use Rate: 145.8333333 scfh __4 MMscf/yr
Pilot Fuel Gas Heating Value: 1000 Btu/scf
f
Section 04-Emissions Factors&Methodologies
Description
Applicant provided a site-specific sample taken from the low pressure separator on 3/2/2020.Applicant also used ProMax to model emissions from the LP,separator and VRT(used for Point 022).This model is based on a
site-specific pressurized liquid analysis.The higher resulting emission factor for each pollutant in used.
3/2/2020 Gas Analysis May 2019 ProMax simulation
MW I 37.71lb/Ib-mol MW I 35.41lb/Ib-mol Displacement Equation
Ex=Q*MW*Xx/C
Weight% Ib/mmscf Weight% Ib/mmscf
Helium 0.0 Helium 0.0
CO2 1.775 CO2 2.600
N2 0.026 N2 3.907
methane 11.756 methane 15.736
ethane 17.445 ethane 18.310
propane 31.829 propane 23.820
isobutane 5.537 isobutane 3.769
n-butane 16.603 n-butane 10.056
isopentane 4.110 isopentane 1.998
n-pentane 5.200 n-pentane 2.072
cyclopentane 0.273 cyclopentane 1.406
n-Hexane 1.270 1263.53 n-Hexane 4.192 3917.818
cyclohexane - 0.448 cyclohexane 5.546
Other hexanes 1.410 Other hexanes
heptanes 1.220 heptanes 2.755
methylcydohexane 0.239 methyl cyclohexane 0.889
22.4114P 0.031 30.75 224-TMP 0.184 171.9562
Benzene 0.253 251.43 Benzene 0.721 673.4825
Toluene 0.183 181.59 Toluene 0.491 458.8892
Ethylbenzene 0.019 18.71 Ethylbenzene 0.038 35.1408
Xylenes 0.052 51.34 Xylenes 0.177 165.0714
CRc Heavies 0.324 C8,Heavies 1.339
Total .. Total
VOC Wt% 68652.30 VOC Wt% - 55561.32473
•
•
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SAparatol 'Venting Ernmssio rs inventory
Emission Factors Separator Venting
Uncontrolled Controlled
Emission Factor Source
Pollutant (lb/MMscf) (lb/MMscf)
(Gas Throughput) (Gas Throughput)
VOC Issuance 1
Benzene Extended gas analysis 8/2019
Toluene - Issuance 1
Ethylbenzene Issuance 1
Xylene Issuance 1
n-Hexane - Extended gas analysis 8/2019
224TMP - - Issuance1
Primary Control Device
Uncontrolled Uncontrolled
Pollutant (Ib/MMBtu) lb/MMscf Emission Factor Source
(Waste Heat
Combusted) (Gas Throughput)
PM10 0.0075 _. AP-42 Table 1.4-2(PM10fPM2.5)
PM2.5 0.0075 AP-42 Table l.4-2(PM1O/PM.28)
SOx 0.0006 AP-42 Table 1.4-2(50x)
NOx 0.0680 Issuance 1
CO 0.3100 Issuance l
Pilot Light Emissions
Uncontrolled Uncontrolled
Pollutant (Ib/MMBtu) lb/MMscf Emission Factor Source
(Waste Heat
Combusted) (Pilot Gas Throughput)
PM10 0.0075 AP-42 Table 1.4-2(PM1O/PM.2.5)
PM2.5 0.0075 _ AP-42 Table 1.4-2(PM30/PM25)
5Ox 0.0006 _ AP-42 Table 1.4-2(SOx)
NOx 0.1000 AP-42 Table 1.4-1(NOx)
VOC 0.0055 - AP-42 Table 1.4-1(VOC)
CO 0.0840 AP-42 Table 1.4-1(CO)
Section OS-Emissions Inventory
Potential to Emit Actual Emissions Requested Permit Limits tuested Monthly Limits
Criteria Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
PM10
PM2.5
SOz
NOx
VOC ..
CO
Potential to Emit Actual Emissions Requested Permit Limits
Hazardous Air Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) Ohs/year) (lbs/year) (lbs/year)
Benzene _ _...
Toluene
Ethylbenzene ..
Xylene
n-Hexane
224 TMP
Section 06-Regulatory Summary Analysis
Regulation 3,Parts A,0 .:
Regulation 7,Section XVII.B,
Regulation 7,Section XVII.B.2.e
(See regulatory applicability worksheet for detailed analysis)
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Section 07-Initial and Periodic Sampling and Testing Requirements
Using Gas Throughput to Monitor Compliance
Does the company use site specific emission factors based on a gas sample to estimate emissions? d�
This sample should represent the gas outlet of the equipment covered under this AIRs ID,and should have been collected within one year of the application received date.However,if the facility
has not been modified(e.g.,no new wells brought on-line),then it may be appropriate to use an older site-specific sample.
If no,the permit will contain an"Initial Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor analysis to
demonstrate that the emission factors are less than or equal to the emissions factors established with this application.
Are facility-wide permitted emissions of VOC greater than or equal to 40 tons per year?
If yes,the permit will contain:
-An"Initial Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor analysis to demonstrate that the emission
factors are less than or equal to the emissions factors established with this application.
-A"Periodic Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor analysis to demonstrate that the emission
factors are less than or equal to the emissions factors established with this application on an annual basis.
Will the operator have a meter installed and operational upon startup of this point? ...
If no,the permit will contain a condition that requires the operator to calculate gas throughput using the liquid throughput until the meter is installed and operational(not to exceed
180 days).This condition will use the"Volume of waste gas emitted per BBL of liquids throughput"(scf/bbl)value in section 03.
Does the company request a control device efficiency device? - ". .
p qgreater than 95%fora flare or combustion x .b -_ �g,,'rtS
If yes,the permit will contain compliance testing requirements to demonstrate the destruction efficiency of the combustion device based on
inlet and outlet concentration sampling
Section 08-Technical Analysis Notes
Annual sampling of the gas stream will be required at this site due to the proximity to the Major Source threshold of 50 tpy VOC for NA NSR
Applicant indicates that none of the wells at this faciltty have been constructed,hydraulically fractured or recompleted after August 1,2014.
The emissions of VOC,NOx and CO associated with pilot combustion are based on pilot fuel flow of 3.5 Mscf/day and factors in AP-42 Chapter 1.The applicant grouped these emissions in with the emissionsfrom waste gas for
determination of the uncontrolled and controlled emission factors.This is a simplified approach which will be accepted in this case since NOx and CO are not reportable,nor are NOx or CO emissions within 10%of Major Source
thresholds.The emission factors as proposed by the applicant are being used in the Notes to Permit Holder Section of the permit,They are as listed below:
68652.30 lb VOC/MMSCF
185.22 lb NOx/MMSCF
701.98 lb CO/MMSCF
673.4816 benzene/MMSCF
3917.82 lb n-hexane/MMSCF
458.89 lb toluene/MMSCF
35.14 lb ethylbezene/MMSCF
165.07 lb xylenes/MMSCF
171.96 lbTMP/MMSCF
Section 09-Inventory 5CC Coding and Emissions Factors
Uncontrolled
AIRS Point It Process k 5CC Code Pollutant Emissions Factor Control% Units
012 01 j as PM10 ...' .
PM2.5 .s.�. .. - "..,..
5Ox ....-_.�
NOx
VOC
CO
Benzene
Toluene
Ethylbenzene ;... ,.:
Xylene
n-Hexane _, ...
224 TMP
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Separator Venting Regulatory Analysis Worksheet
The regulatory requirements below are determined based on requested emissions.
Colorado Regulation 3 Parts A and 0-APEN and Permit Requirements
Source
ATTAINMENT
1. Are uncontrolled actual emissions from any criteria pollutants from this individual source greater than 2 TPY(Regulation 3,Part A,Section II.D.1.a)?
2. Are total facility uncontrolled VOC emissions greater than 5 TPY,NOx greater than 10 TPY or CO emissions greater than 10 Try(Regulation 3,Part 0,Section 11.0.3)?
Ira ice... h .t_ir_ _.
NON-ATTAINMENT
1. Are uncontrolled emssions from any criteria pollutants from this individual source greater than 1 TPY(Regulation 3,Part A,Section ll.D.1.a)? Yes -::ISource Re
2. Are total facility uncontrolled VOC emissions from the greater than 2 TPY,NOx greater than 5 TPY or CO emissions greater than 10 TPY(Regulation 3,Part B,Section 11.0.2)7 Yes Source Re
So....- . n ape._..
Colorado Regulation 7,Section XVII
L Was the well newly constructed,hydraulically fractured,orrecompleted on or after August 1,2014? No ISource is
Section XVII.B.2—General Providers for Air Pollution Control Equipment and Prevention of Emissions
Section XVo.G-Emissions Control
Alternative Emissions Control(Optional Sediunl •
a. Is this separator controlled by a back-up or alternate combustion device(Le.,not the primary control device)that is not enclosed? v'I:., .i The canto
IThs crrerr,e device ter thts ssparetornct uubio RegL,lation s Secto,
;11.3.r x
Section XVII.5.2.e—Alternative emissions control equipment
Disclaimer
This document assists operators with determining applicability of certain requirements of the Clean Air Act,its implementing regulations,and Air Quality Control Commission regulations.This document is
not a rule or regulation,and the analysis it contains may not apply to a particular situation based upon the individual facts and circumstances.This document does not change or substitute for any law,
regulation,or any other legally binding requirement and is not legally enforceable.In the event of any conflict between the language of this document and the language of the Clean Air Act„its implementing
regulations,and Air Quality Control Commission regulations,the language of the statute or regulation will control. The use of non-mandatory language such as'recommend,'"may,""should,"and'can,"is
intended to describe APCD interpretations and recommendations.Mandatory terminology such as'must"and'required"are intended to descdbe controlling requirements under the terms of the Clean Air
Act and Air Quality Control Commission regulations,but this document does not establish legally binding requirements in and of itself
Section 01-Administrative Information
123 9586 022
Facility Al Rs ID: County Plant Point
Section 02-Equipment Description Details
Detailed Emissions Unit Description: Venting of gas from vapor recovery tower(VRT)to enclosed combustor during VRU downtime.
Emission Control Device Description ECD
Requested Overall VOC&HAP Control Efficiency%: 95
Limited Process Parameter
Gas meter
Section 03-Processing Rate Information for Emissions Estimates
Primary Emissions-Separator
Actual Throughput= 0.71 MMscf per year
IRequested Permit Limit Throughput= 0.71 MMscf per year Requested Monthly Throughput= 7350 MMscf per month
Potential to Emit(PTE)Throughput= ..'_MMscf per year
Process Control(Recycling)
Equipped with a VRU:
Is VRU process equipment: 1.4!...glit„.ii-,,i!'1,41 Uncontrolled and ra._.r ui;ed,-miss: Jury=o e blish rcque.ted permit;irrrts ar cased^ntyvn whet-the 103.5 bypassed(Le'.au:te ga0 volume that Is routed to
the flai
Secondary Emissions-Combustion.Device(s)for Air Pollution Control
Separator Gas Heating Value: 2519 Btu/sd
Volume of waste gas emitted per BBL of ally
Iiquids throughput: ggirgigingttniscf/bbl Section 04-Emissions Factors&Methodologies
Description
Applicant used ProMax to model emissions from the LP separator and VRT(used for Point 022)..This model is based on a site-specific pressurized liquid analysis.The resulting composition(i.e.as modeled using ProMax)for
the LP.separator is higher in VOC than the site-specific extended gas analysis submitted with self-cert for issuance 1,and therefore,!will accept this composition as representative.
MW I 45.3342 lb/Ib-mol Displacement Equation
Ex=Q°MW°Xx/C
Weight
Helium 0.00
CO2 - 1.49
N2 0.41
methane 4.30
ethane 16.00
propane 30.17
isobutane : 5.23
n-butane 14.14
isopentane 2.80
n-pentane 2.86
cyclopentane 1.92
n-Hexane 5.48
cyclohexane 7.21
Other hexanes
heptanes 3.38
methylcyclohexane 1.10
224-TMP 0.23
Benzene 0.94
Toluene 0.60
Ethylbenzene 0.04
Xylenes 0.20
CB+Heavies 1.48
Total
VOC Wt% -.
Emission Factors Separator Venting
Uncontrolled Controlled
Emission Factor Source
Pollutant (lb/MMscf) (lb/MMscf)
(Gas Throughput) (Gas Throughput)
VOC
Benzene 112835 CE
Toluene
Ethylbenzene ...'39 - 2.=7
Xylene 24,06 12.05
n-Hexane _:=5.83 32.
224 TMP
Primary Control Device
Uncontrolled Uncontrolled
Pollutant (Ib/MMBtu) lb/MMscf Emission Factor Source
(Waste Heat
Combusted) (Gas Throughput)
PM10 0.0075 13.715 AP-42Table 1.4-2(PM10/
PM2.5 0.0075 18.739 AP-42 Table l4-2.(PM10/PM.2.555
SOx 0.0006 1.479 y: AP-42 Table 1.4-2(SOx)
NOx 0.0680 171.020 -42 Chapter 13.5 industrial Flares 0
CO 0.3100 779.631 -42 Chapter 13.5 Industrial
6 of3rWsers\beades\Desktop\Remote Work\TJs Packages\PubCom Packages\398605(Noble Wells Ranch AA25)\14WE0968.CP2
Separator Venting Inventor-,
Section 05-Emissions Inventory
Potential to Emit Actual Emissions Requested Permit Limits Requested Monthly Limits
Criteria Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
PM10 0.01 0.01 0-91 0.01 0.01 1
PM2.5 0.01 0.01 1.01 c-. 0.00 1
500 0.00 1.20 9.00 0.00 0
NOx 0 00 1.00 0.96 0,00 . 10
VOC 3_._1 32.90 i 65 _. 105 280
CO 0.20 0.28 0.28 0.20 47
Potential to Emit Actual Emissions Requested Permit Limits
Hazardous Air Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (Ibs/year) fibs/year) (Ibs/year)
Benzene 799 26 ..10
Toluene 109
Ethylbenzene 3c 01 2 •
Xylene 171 - 12], 9
n-Hexane .1644 21.. - 232
224 TMP 197 10 10
Section 06-Regulatory Summary Analysis
Regulation 3,Parts A,B Source rogoisos a permit
Regulation 7,Section XVII.B,G Souris rot suhec to ite,tii -..-_c:un 0711 0,2
Regulation 7,Section XVII.B.2.e The root....3 ,Ice for 05 sepals 6 subject 10 - sect, 1 2.0
(See regulatory applicability worksheet for detailed analysis)
Section 07-Initial and Periodic Sampling and Testing Requirements
Using Gas Throughput to Monitor Compliance
Does the company use site specific emission factors based on a gas sample to estimate emissions? o`
This sample should represent the gas outlet of the equipment covered under this AIRs ID,and should have been collected within one year of the application received date.However,if
the facility has not been modified(e.g.,no new wells brought on-line),then it maybe appropriate to use an older site-specific sample.
If no,the permit will contain an"Initial Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor
analysis to demonstrate that the emission factors are less than or equal to the emissions factors established with this application..
Are facility-wide permitted emissions of VOC greater than or equal to 90 tons per year? No._
If yes,the permit will contain:
-An"Initial Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor analysis to demonstrate that the
emission factors are less than or equal to the emissions factors established with this application.
-A"Periodic Testing Requirement"to collect a site-specific gas sample from the equipment being permitted and conduct an emission factor analysis to demonstrate that the
emission factors are less than or equal to the emissions factors established with this application on an annual basis.
Will the operator have a meter installed and operational upon startup of this point?
If no,the permit will contain a condition that requires the operator to calculate gas throughput using the liquid throughput until the meter is installed and operational(not
to exceed 180 days).This condition will use the"Volume of waste gas emitted per BBL of liquids throughput"(scf/bbl)value in section 03.
Does the company request a control device efficiency greater than 95%for a flare or combustion device?
If yes,the permit will contain and initial compliance test condition to demonstrate the destruction efficiency of the combustion device based
on inlet and outlet concentration sampling
Section 08-Technical Analysis Notes
Initial and annual sampling of the gas stream will be required at this she due to the proximity to the Major Source threshold of SO tpy VOC for NA NSR
Applicant indicates that none of the wells at this faciltiy have been constructed,hydraulically fractured or recompleted after August 1,2014.
The emissions of VOC,NOx and CO associated with pilot combustion are based on pilot fuel flow of 3.5 Mscf/day and factors in AP-42 Chapter 1.The applicant grouped these emissions in with the emissions from waste gas for
determination of the uncontrolled and controlled emission factors.This is a simplified approach which will be accepted in tHs case since NOx and CO are not reportable,nor are NOx or CO emissions.within 10%of Major Source thresholds.
The emission factors as proposed by the applicant are being used in the Notes to Permit Holder Section of the permit.
Section 09-Inventory SCC Coding and Emissions Factors - - -- - -- -- _- - - -
Uncontrolled
Emissions
AIRS Point# Process# SCC Code Pollutant Factor Control% Units
022 01 PM10 ,'.602
PM2.5
SOX 1.42 0 10/1.1v'l5C9
NOx 101.70 0 ib,/MM010
VOC 90052.4? 9s ib/N1115C=
CO 71%9.05 0 16/0.7MSC6
Benzene. 1129 26 95 lb/NIM5CP
Toluene 110.9/ 95 114/0101.010
Ethylbenzene 55.40 9s Ib/MMSCF
Xylene -41-25 95 Ib/MMSCF
n-Hexane .102.03 95 ib/IVIMSCF
224 TMP t13 ._ lh/MMSCF
7 ofQ4Users\beades\Desktop\Remote Work\TJs Packages\PubCom Packages\398605(Noble Wells Ranch AA25)\14WE0968.CP2
Separator Venting Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and R-APEN and Permit Requirements
ATTAINMENT
1. Are uncontrolled actual emissions from any criteria pollutants from this individual source greater than 2 TPY(Regulation 3,Part A,Section II.D.1.a)?
2. Are total facility uncontrolled VOC emissions greater than 5 TPY,NOx greater than 10TPY or CO emissions greater than 10 TPY(Regulation 3,Part%Section 11.0.3)?
NON-ATTAINMENT
1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than l TPY(Regulation 3,Part A,Section ll.0.l.e)? Yes Source Req
2. Are total facility uncontrolled VOC emissions from the greater than 2 TPY,NOx greater than 5 TPY or CO emissions greater than 10 TRY(Regulation 3,Part B,Section 11.0.2)? Yes -Source Req
Colorado Regulation 7,Section)(VII
1 Was the well newly constructed,hydraulically f t d,or recrmpleted on or after August 1,2014? INn ISource isni
Section XVII.B.2—General Provisions for Air Pollution Control Equipment and Prevention of Emissions
Section XVII.G-Emissions Control
Alternative Emissions Control(Optional Section)
a. Is this separator controlled by a back-up or alternate combustion device(i.e.,not the primary control device)that is not enclosed? No IThe control
Section XVII.B.2.e—Alternative emissions control equipment
Disclaimer
This document assists operators with determining applicability of certain requirements of the Clean Air Act.its implementing regulations,and Air Quality Control Commission regulations.This document is
note rule or regulation,and the analysis it contains may not apply to a particular situation based upon the individual facts and circumstances.This document does not change or substitute for any law,
regulation,or any other legally binding requirement and is not legally enforceable In the event of any conflict between the language of this document and the language of the Clean Air Act„its implementing
regulations,and Air Quality Control Commission regulations,the language of the statute or regulation will control. The use of non-mandatory language such as'recommend,"may,'"should,"and'cen,'is
intended to describe APCD interpretations and recommendations.Mandatory terminology such as'must"and"required"are intended to describe controlling requirements under the terms of the Clean Air
Act and Air Quality Control Commission regulations,but this document does not establish legally binding requirements in and of itself
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
AIR POLLUTION CONTROL DIVISION
FACILITY EMISSION SUMMARY
Company Name Noble Energy,Inc.
County AIRS ID 123 History File Edit Date 5/6(2020
Plant AIRS ID 9586 Ozone Status Non-Attainment
Facility Name Wells Ranch Econode-Section 25
EMISSIONS-Uncontrolled(tons per year) EMISSIONS With Controls(tons per year)
AIRS ID PERMIT Description PM10 PM2.5 H2S SO2 NOx VOC Fug CO Total PM90 PM2.5 H2S SO2 NOx VOC Fug CO Total REMARKS
VOC HAPS VOC HAPS
Previous FACILITY TOTAL 0.0 0.0 0.0 0.0 33.6 79.8 0.0 51.9 6.9 From July 2019 tab
Previous Permitted Facility total 0.0 0.0 0.0 0.0 33.6 79.8 0.0 51.9 6.9
001 GP02 Caterpillar G3508B 690HP _ cancelled
002 GP02 Caterpillar G3508B 690HP _ - _ CN received 12126/2019
003 GP02 Caterpillar 035056 690HP cancelled
004 GP02 Caterpillar 035086 690HP - CN received 2/11/2016
005 GP02 Caterpillar 035086 95HP cancelled
006 GP02 Arrow-VRG33068HP _ cancelled
007 13WE1098 Condensate Tank 3.3 292.0 2.7 9.2 3.3 14.6 2.7 0.5
008 13WE1098 Condensate Tank 0.2 13.6 0.1 0.4 0.2 0.7 0.1 0.0
009 12WE2094 Produced Water Tank 78.6 8.7 3.3 0.4
_
010 12WE2317 Condensate Loadout TL415817940 188.9 8.2 9.4 0.2
011 12WE2317 Condensate Loadout TL415826210 8.8 0.4 - 0.4 0.0
012 14W009//5 1..9 venting flare 0.3 112 3 L2 8.9 0.3 5.7 '1.2 0.4 Mod to decrease volume and emission lirntts
013 GP02 Bucks 5.7L GM 4SR8:at 88hp - cancelled
014 GP02 Caterpillar 635080 4SLB 690 hp, - cancelled
015 Cancelled Caterpillar G35168 4SRB 1380 HP cancelled
016 GP02 Caterpillar G3516B 4SR8 1380 HP 0.5 0.5 6.7 18.7 41.6 5.5 6.7 6.4 13.4 2.1 No change
017 GP02 Caterpillar C0137-8 400HP _ CN received 12/17/15
018 GP02 Buck 5.7L GM 4SRB at 88 hp _ 0.0 CN received 2/18/16
019 GP02 Cat G3305 0.0 0.0 CN received 7/14/17
020 15WE1315.XP Kubota NG RICE 0.4 0.7 24.3 0.0 0.4 0.7 24,3 0.0 Updated from APEN reed 9/14/15
021 GP02 Caterpillar G3304NA 12.4 0.8 12.4 0.3 2.6 0.8 4.5 0.3 Updated from APEN reed 6/26/17
022 19WE0545 VRT venting 0.1 3'3,0 0,3 32 0.1 1.7 0.3 0.2 Newly permitted Point
023 GP02 Caterpillar G3508B 6.7 6.2 19.9 3.4 6.7 4.7 10.0 1.2 Updated from APEN reed 12/17/19
XA Heaters 4.3 0.5 7.8 0.0 4.3 0.5 7.8 0.0
0.0 0.0
VOC: Syn Minor(NANSR and OP)
NOx: Minor
FACILITY TOTAL 0.5 0.5 0.0 0.0 30.0 754.1 0.0 102.4 48.1 0.0 0.0 0.0 0.0 24.5 49.0 0.0 64.3 5.3 CO: Syn Minor(OP)
HAPS: Syn Minor n-hexane&Total
HH: area source+no TEG dehy
ZZZZ: area source
Permitted Facility Total 0.5 0.5 0.0 0.0 29.6 752.8 0.0 78.2 48.1 0.0 0.0 0.0 0.0 19.9 47.7 0.0 32.2 5.3 Excludes units exempt from permits/APENs
Pubcom&modeling(not)required based on (A
(A)Change in Permitted Emissions 0.0 0.0 0.0 0.0 -13.7 -32.0 0.0 -19.7
change in emissions)
Total VOC Facility Emissions(point and fugitive) 49.0 Facility is eligible for GP02 because a 90 tpy
(A)Change in Total Permitted VOC emissions(point and fugitive) -32.0 Project emissions less than 25/50 tpy
Note 1
Note 2
Page 9 of 11 Printed 5/6/2020
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
AIR POLLUTION DIVISION
FACILITY EMISSION SUMMARY-HAPs
Company Name Noble Energy,Inc.
County AIRS ID 123
Plant AIRS ID 9586
Facility Name Wells Ranch Econode-Section 25
Emissions- uncontrolled (lbs per year)
POINT PERMIT Description Formaldehyde Acetaldehyde Acrolein Benzene Toluene Ethylbenzene Xylenes n-Hexane McOH 224 TMP TOTAL(tpy)
001 GP02 Caterpillar G3508B 690HP 0.0
002 GP02 Caterpillar G3508B 690HP 0.0
003 GP02 Caterpillar G3508B 690HP 0.0
004 GP02 Caterpillar G3508B 690HP 0.0
005 GP02 Caterpillar G3508B 95HP 0.0
006 GP02 Arrow VRG330 68HP 0.0
007 13WE1098 Condensate Tank 2007.5 16425 9.2
008 13WE1098 Condensate Tank _ 93.5 765 0.4
009 12WE2094 Produced Water Tank 4200 13200 8.7
010 12WE2317 Condensate Loadout TL415817940 3650 5475 1825 5475 8.2
011 12WE2317 Condensate Loadout TL415826210 170 255 85 255 0.4
012 14WE0968 LP venting-flare 2203 1501 115 540 12813 562 8.9
013 GP02 Bucks 5.7L GM 4SRB at 88hp ! 0.0
014 GP02 Caterpillar G3508B 4SLB 690 hp _ 0.0
015 Cancelled Caterpillar G3516B 4SRB 1380 HP 0.0
016 GP02 Caterpillar G3516B 4SRB 1380 HP 9594 812 500 5.5
017 GP02 Caterpillar CG137-8 400HP 0.0
018 GP02 Buck 5.7L GM 4SRB at 88 hp 0.0
019 GP02 Cat G3305 _ 0.0
020 15WE1315.XP Kubota NG RICE 0.0
021 GP02 Caterpillar G3304NA 514 0.3
022 19WE0545 VRT venting 799 509 36 171 4644 194 3.2
023 GP02 Caterpillar G3508B 5997 404 248 21 20 2 9 54 121 3.4
XA Heaters 0.0
0.0
TOTAL(tpy) 8.1 0.6 0.4 6.6 3.9 0.1 1.3 26.8 0.1 0.4 48.1
10 14WE0968.CP2 5/6/2020
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
AIR POLLUTION DIVISION
FACILITY EMISSION SUMMARY-HAPs
Company Name Noble Energy,Inc.
County AIRS ID 123
Plant AIRS ID 9586
Facility Name Wells Ranch Econode-Section 25
Emissions with controls (lbs per year)
POINT PERMIT Description Formaldehyde Acetaldehyde Acrolein Benzene Toluene Ethylbenzene Xylenes n-Hexane McOH 224 TMP TOTAL(tpy)
001 GP02 Caterpillar G3508B 690HP 0.0
002 GP02 Caterpillar G3508B 690HP 0.0
003 GP02 Caterpillar G3508B 690HP 0.0
004 GP02 Caterpillar G3508B 690HP 0.0
005 GP02 Caterpillar G3508B 95HP 0.0
006 GP02 Arrow VRG330 68HP 0.0
007 13WE1098 Condensate Tank 100.4 821.3 0.5
008 13WE1098 Condensate Tank 4.7 38.3 0.0
009 12WE2094 Produced Water Tank 210 660 0.4
010 12WE2317 Condensate Loadout TL415817940 183 274 0.2
011 12WE2317 Condensate Loadout TL415826210 9 13 0.0
012 14WE0968 LP venting-flare 110 75 6 27 641 28 0.4
013 GP02 Bucks 5.7L GM 4SRB at 88hp 0.0
014 GP02 Caterpillar G3508B 4SLB 690 hp 0.0
015 Cancelled Caterpillar G3516B 4SRB 1380 HP 0.0
016 GP02 Caterpillar G3516B 4SRB 1380 HP 2932 812 500 2.1
017 GP02 Caterpillar CG137-8 400HP 0.0
018 GP02 Buck 5.7L GM 4SRB at 88 hp 0.0
019 GP02 Cat G3305 0.0
020 15WE1315.XP Kubota NG RICE 0.0
021 GP02 Caterpillar G3304NA 514 0.3
022 19WE0545 VRT venting 40 25 2 9 232 10 0.2
023 GP02 Caterpillar G3508B 1439.2 403.8 248 21 19.7 1.9 8.9 53.6 '121 12.1 1.2
XA Heaters 0.0
0.0
TOTAL(tpy) 1.7 0.4 0.3 0.3 0.1 0.0 0.0 1.3 0.0 0.0 4.1
11 14WE0968.CP2 5/6/2020
Venting Y
Air Pollutant Emission Notice (APEN) and
conit 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 gas venting only. Gas venting includes emissions from gas/liquid separators, well head
casing, pneumatic pumps, blowdown events, among other events. If your emission unit does not fall into this
category, there may be a more specific APEN for your source (e.g. amine sweetening unit, hydrocarbon liquid
loading, condensate storage tanks, 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 4WE0968 AIRS ID Number: 123 / 9586 /012
[Leslie blank unless APCD has aucady assigned a permit a and AIRS ID
Section 1 - Administrative Information
Company Name': Noble Energy Inc.
Site Name: WELLS RANCH AA25&26 ECONODE T6N-R63W-S25 L01
Site Location
Site Location: SWNW SEC25 T6N R63W Weld
County:
NAICS or SIC Code: 1311
Mailing Address: 1625 Broadway, Suite 2200
(Include Zip Code)
Denver, CO 80202 Contact Person: Janessa Salgado
Phone Number: 303-228-4196
E-Mail Address2: janessa.salgado@nblenergy.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
+ I nzw mvaore t
Form APCD-211 - Gas Venting,APEN - Revision 12/2019 1 xea,�,6En��e„m��,
Permit Number: 14WE0968 AIRS ID Number: 123 /9586/012
[ware blank untess APCD has already assigned a permiz and AIRS ID
Section 2 - Requested Action
❑ NEW permit OR newly-reported emission source
-OR-
❑✓ MODIFICATION to existing permit (check each box below that applies)
O Change fuel or equipment O Change company name3 O Add point to existing permit
❑✓ Change permit limit O Transfer of ownership4 ❑ Other (describe below)
-OR-
❑ APEN submittal for update only(Note blank APENs will not be accepted)
-ADDITIONAL PERMIT ACTIONS -
❑ Limit Hazardous Air Pollutants (HAPs)with a federally-enforceable limit on Potential To Emit (PTE)
Additional Info a Notes:
3 For company name change, a completed Company Name Change Certification Form (Form APCD-1O6)must be submitted.
4 For transfer of ownership, a completed Transfer of Ownership Certification Form (Form APCD-104) must be submitted.
Section 3 - General Information
General description of equipment and purpose: Venting of gas from low pressure (LP)
separators to an open flare during VRU downtime.
Company equipment Identification No. (optional): LP FLARE
For existing sources, operation began on: 04/17/2014
For new, modified, or reconstructed sources, the projected start-up date is: N/A
❑✓ Check this box if operating hours are 8,760 hours per year; if fewer, fill out the fields below:
Normal Hours of Source Operation: hours/day days/week weeks/year
Will this equipment be operated in any NAAQS
Yes O No
nonattainment area?
Is this equipment located at a stationary source that is O Yes ✓❑ No
considered a Major Source of (HAP) Emissions?
Is this equipment subject to Colorado Regulation No. 7, ❑✓ Yes O No
Section XVII.G?
COLORADO
Form APCD-211 - Gas Venting APEN - Revision 12/2019 2 I i===.
Permit Number: 14W E0968 AIRS ID Number: 123 /9586/012
[Leave btank unless APCD has already assigned a permit#and AIRS IDI
Section 4 - Process Equipment Information
✓❑ Gas/Liquid Separator
❑ Well Head Casing
- 0 Pneumatic Pump
Make: Model: Serial#: Capacity: gal/min
o Compressor Rod Packing
Make: Model: #of Pistons: Leak Rate: Scf/hr/pist
❑ Blowdown Events
#of Events/year: Volume per event: MMscf/event
o Other
Description:
If you are requesting uncontrolled VOC emissions greater than 100 tpy for a gas/liquid separator, you must use Gas
Venting as a process parameter.
Are requested uncontrolled VOC emissions greater than 100 tpy? ❑✓ Yes 0 No
Vent Gas BTU/SCF
Gas Venting Heating Value: 2160.67
Process Parameters: Requested: 3.27 MMSCF/year Actual: MMSCF/year
-OR-
Liquid Throughput
Requested: bbl/year Actual: bbl/year
Process Parameters:
Molecular Weight: 35.42(Modeled),37.71(Sampled)
VOC (Weight%) 68.6973%
Benzene (Weight%) 0.72%
Vented Gas Toluene (Weight%) 0.49%
Properties: Ethylbenzene (Weight%) 0.04%
Xylene (Weight%) 0.18%
n-Hexane (Weight%) 4.19%
2,2,4-Trimethylpentane (Weight%) 0.18%
Additional Required Documentation:
❑✓ Attach a representative gas analysis (including BTEX 8 n-Hexane, temperature, and pressure)
❑ Attach a representative pressurized extended liquids analysis (including BTEX £x n-Hexane, temperature, and
pressure)
5 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.
COLORADO
Form APCD-211 - Gas Venting APEN - Revision 12/2019 3 I .=,e""""�"`'KeaiN b Envl�o�meN
Permit Number: 14WE0968 AIRS ID Number: 123 /9586/012
[Leave blank unless APCD has already assigned a permit#and AIRS ID]
Section 5 - Geographical/Stack Information
Geographical Coordinates
(Latitude/Longitude or UTM)
40.459,-104.3941
❑ Check box if the following information is not applicable to the source because emissions will not be emitted
from a stack. If this is the case, the rest of this section may remain blank.
Discharge Height
Operator Temp Flow Rate Velocity
Above Ground Level
Stank ID No. {°F) . (ACFM) 4ft/sea
Indicate the direction of the stack outlet: (check one)
❑✓ Upward O Downward ❑ Upward with obstructing raincap
❑ Horizontal O Other(describe):
Indicate the stack opening and size: (check one)
❑✓ Circular Interior stack diameter(inches): 162
o Square/rectangle Interior stack width (inches): Interior stack depth (inches):
❑ Other(describe):
Section 6 - Control Device Information
❑ Check this box if no emission control equipment or practices are used to reduce emissions, and skip to the next section,
Pollutants Controlled:
Size: Make/Model:
O VRU:
Requested Control Efficiency:
VRU Downtime or Bypassed:
Pollutants Controlled: VOC, HAPs
Rating: MMBtu/hr
Type: Open Flare Make/Model:
❑ Combustion Requested Control Efficiency: 95
Device:
Manufacturer Guaranteed Control Efficiency: 98
Minimum Temperature: NSA Waste Gas Heat Content: 2160.67 Btu/scf
Constant Pilot Light: 0 Yes ❑ No Pilot burner Rating: 0.146 MMBtu/hr
Pollutants Controlled:
❑ Other: Description:
Requested Control Efficiency: % •
M COLORADO
Form APCD-211 - Gas Venting APEN - Revision 12/2019 4 I 1 -O"" "ano.a.,.�nE
Permit Number: 14W E0968 AIRS ID Number: 123 s 9586/012
(Leave blank unless APCD has already assigned a permit#and AIRS ID]
Section 7 - Criteria Pollutant Emissions Information
Attach all emissions calculations and emission factor documentation to this APEN form.
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 (report the overall, or
combined, values if multiple emission control methods were identified in Section 6):
Collection Efficiency Control Efficiency
Pollutant Control Equipment Description (%of total emissions captured (%reduction of captured
by control equipment) emissions)
PM
SOx
NOx
CO
VOC Enclosed Combustor(s) 100% 95%
HAPs Enclosed Combustor(s) 100% 95%
Other:
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
Emission Limit(s)5
Pollutant
Source Uncontrolled Controlled Uncontrolled Controlled
Uncontrolled
Basis Units (AP-42, Emissions Emissions(' Emissions Emissions
Mfg.,etc.) (tons/year)„ (tons/year) (tons/year) (tons/year)
PM 2.97 lb/MMscf AP-42 0.00 0.00
SOx 0.2298 lb/MMscf AP-42 0.00 0.00
NO. 185.2210 lb/MMscf AP-42 0.30 0.30
CO 701.9759 lb/MMscf AP-42 1.15 1.15
VOC 68,652.2987 lb/MMscf HYSYS,AP-42 112.26 5.61
5 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.
6 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.) (lbs/year) (lbs/year)
Benzene 71432 673.48 lb/MMscf HYSYS,AP-42 2,203 110
Toluene 108883 458.89 lb/MMscf HYSYS,AP-42 1,501 75
Ethylbenzene 100414
Xylene 1330207 165.07 lb/MMscf HYSYS,AP-42 540 27
n-Hexane 110543 3,917.82 lb/MMscf HYSYS,AP-42 12,813 643
2,2,4-Trimethylpentane 540841 171.96 lb/MMscf HYSYS,AP-42 562 28
Other:
6 Annual emission fees will be based on actual controlled emissions reported. If source has not yet started operating, provide
projected emissions.
C a6OR ADO
Form APCD-21 1 - Gas Venting APEN - Revision 12/2019 5 I Zimb 'Z4
Permit Number: 14WE0968 AIRS ID Number: 123 /9586/012
[Leave btank un ess APCD has airead., assigned a permit#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.
CIA S 05/14/2020
Signature of Legall uthorized Person (not a vendor or consultant) Date
Janessa Salgado Environmental Engineer
Name (print) Title
Check the appropriate box to request a copy of the:
El 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.
Send this form along with $191.13 to: For more information or assistance call:
Colorado Department of Public Health and Environment Small Business Assistance Program
Air Pollution Control Division (303) 692-3175
APCD-SS-B1 OR
4300 Cherry Creek Drive South (303) 692-3148
Denver, CO 80246-1530
APCD Main Phone Number
Make check payable to: (303) 692-3150
Colorado Department of Public Health and Environment
Form APCD-211 - Gas Venting APEN - Revision 12/2019 6 I 77.
SPL, Inc.
2881 31st Ave, Units 6-9
Greeley,CO 80634
970-460-0055
Client: Noble Energy Inc. Analysis Date: 3/3/2020
Sample ID: Wells Ranch 25 LP Stream Date Sampled: 3/2/2020
Unique#: Not Indicated Purpose: Not Indicated
Sample Temperature: 70 DEG F Sample Pressure: 37 PSI
Sampled By: Fred Cox Type Sample: Spot
County: Not Indicated
Components Mole% Weight% Liq, Vol. %
Nitrogen 0.0351 0.0261 0.0151
Carbon Dioxide 1.5205 1.7747 1.0141
Methane 27.6310 11.7560 18.3060
Ethane 21.8760 17.4451 22.8630
Propane 27.2170 31.8289 29.3029
iso-Butane 3.5922 5.5373 4.5937
n-Butane 10.7710 16.6029 13.2702
iso-Pentane 2.1481 4.1103 3.0700
n-Pentane 2.7175 5.1997 3.8495
Cyclopentane 0.1465 0.2726 0.1696
n-Hexane 0.5556 1.2699 0.8929
Cyclohexane 0.2008 0.4482 0.2669
Other Hexanes 0.7082 1.4097 0.9149
Heptanes 0.4591 1.2200 0.8277
Methylcyclohexane 0.0917 0.2387 0.1439
2,2,4-Trimethylpentane 0.0102 0.0309 0.0207
Benzene 0.1220 0.2527 0.1333
Toluene 0.0747 0.1825 0.0977
Ethylbenzene 0.0067 0.0188 0.0101
Xylenes 0.0184 0.0516 0.0276
Octanes 0.0434 0.1314 0.0868
Nonanes 0.0351 0.1195 0.0773
Decanes+ 0.0192 0.0726 0.0461
Total: 100.0000 100.0000 100.0000
ADDITIONAL BTEX DATA
Components Mole% Weight% Liq. Vol. %
Cyclopentane 0.147 0.273 0.1696
Cyclohexane 0.201 0.448 0.2669
2-Methylpentane 0.446 0.887 0.5758
3-Methylpentane 0.262 0.522 0.3391
n-Hexane 0.556 1.270 0.8929
Methylcyclohexane 0.092 0.239 0.1439
2,2,4-Trimethylpentane 0.010 0.031 0.0207
Benzene 0.122 0.253 0.1333
Toluene 0.075 0.183 0.0977
Ethylbenzene 0.007 0.019 0.0101
m-Xylene 0.003 0.008 0.0044
p-Xylene 0.012 0.035 0.0187
o-Xylene 0.003 0.008 0.0045
SAMPLE CHARACTERISTICS
SPECIFIC GRAVITY @ 60/60 F, calculated 1.3019
TOTAL GPM (Ethane Inclusive) 20.56
CALCULATED BTU/REAL CF @ 14.73 PSIA, dry basis 2160.67
CALCULATED BTU/REAL CF @ 14.73 PSIA, wet basis 2123.06
AVERAGE MOLECULAR WEIGHT 37.71
MOLAR MASS RATIO 1.2994
RELATIVE DENSITY( G x Z(Air)/Z), calculated 1.3186
IDEAL GROSS HEATING VALUE, BTU/IDEAL CF @ 14.696 PSIA 2127.41
COMPRESSIBILITY FACTOR (Z) 0.9869
PROPANE GPM 7.479
BUTANE GPM 4.560
GASOLINE GPM (PENTANE AND HEAVIER) 2.683
TOTAL ACID GAS MOLE % 1.521
VOC WEIGHT FRACTION 0.6881
NOTATION: ALL CALCULATIONS PERFORMED USING PHYSICAL CONSTANTS FROM GPA 2145-16,THE
TABLES OF PHYSICAL CONSTANTS FOR HYDROCARBONS AND OTHER COMPOUNDS OF INTEREST TO THE
NATURAL GAS INDUSTRY.
2020 Gas Sample
WELLS RANCH AA25&26 ECONODET6N-R63W-S25 L01
LP VRU Downtime
Equipment Description Gas.Venting from LP Separators during Vapor Recovery Compressor Downtime
Limited Process Parameter Natural Gas Vented
Gas Meter Currently Installed and Operational
Control Device: Separator Gas Composition:
Number of Burners 1 Heating Value(Btu/scf) 2160.67
VOC Control Efficiency(%) 95% Molecular Weight 37.71
Control Device Pilot: •
Separator Operation:
Pilot Burner Rating(MMBta/hr) 0.145833333 Potential VRU Downtime(hr/yr) 1500
Pilot Potential Operation(hr/yr) 8760 Maximum Gas Burned(Mscf/hr) 2.18
Pilot Fuel HHV(Btu/scf) 1000 Maximum Gas Burned(Mscf/yr) 3270.49
Max Pilot Volume Burned(scf/hr) 145.8333333 Maximum Gas Burned(MMBtu/hr) 4.711
Max Pilot Volume Burned(MMscf/yr) 1.3 Requested Permit Limit(MMscf/yr) 3.27
Max Pilot Heat Output(MMBtu/yr) 1277.5
Total Potential Emissions
Uncontrolled Controlled
Pollutant lb/MMscf lb/yr. tpy lb/MMscf lb/yr tpy
PM,PM10,PM2.5 2.9105 10 0.00 2.9105 10 0.00
SO2 0.2298 1 0.00 0.2298 1 0.00
NOx 185.2210 606 0.30 185.2210 606 0.30
CO 701.9759 2,296 1.15 701.9759 2,296 1.15
VOC 68,652.2987 224,527 112.26 3,433.1839 11,228 5.61
Benzene 251.4340 822 0.41 12.5725 41 0.02
Toluene 181.5864 594 0.30 9.0806 30 0.01
Ethylbenzene 18.7058 61 0.03 0.9353 3 0.00
Xylenes 51.3413 168 0.08 2.5671 8 0.00_
Hexane 1,264.2231 4,135 2.07 63.8660 209 0.10
224-Mpentane 30.7451 101 0.05 1.5373 5 0.00
Value Used in Permit
Potential Emissions-5%VOC Slip by VOC Combustor(HYSYS Simulation Supported Calculation)
EF Uncontrolled EF Controlled Uncontrolled Uncontrolled Controlled Controlled
Component Weight Percent (lb/MMscf) (lb/MMscf) Emission(lb/yr) Emission(tpy/yr) Emission(lb/yr) Emission(tpy/yr)
CO2 1.7747 1,765.8031 88.2902 5775.0461 2.8875 288.7523 0.1444
Nitrogen 0.0261 25.9692 1.2985 84.9319 0.0425 4.2466 0.0021
Methane 11.7560 11,697.0649 584.8532 38255.1652 19.1276 1912.7583 0.9564
Ethane 17.4451 17,357.6444 867.8822 56768.0489 28.3840 2838.4024 1.4192
Propane • 31.8289 - 31,669.3356 1,583.4668 103574.3305 51.7872 5178.7165 2.5894
i-Butane 5.5373 5,509.5404 275.4770 18018.9118 9.0095 900.9456 0.4505
n-Butane 16.6029 16,519.6665 825.9833 54027.4484 27.0137 2701.3724 1.3507
i-Pentane 4.1103 4,089.6943 204.4847 13375.3152 6.6877 668.7658 0.3344
n-Pentane 5.1997 5,173.6329 258.6816 16920.3286 8.4602 846.0164 0.4230
Cyclopentane 0.2726 271.2334 . 13.5617 887.0669 0.4435 44.3533 0.0222
Cyclohexane 0.4482 445.9531 22.2977 1458.4863 0.7292 72.9243 0.0365
Other Hexanes 1.4097 1,402.6329 70.1316 4587.3007 2.2937 229.3650 0.1147
n-Heptane 1.2200 1,213.8839 60.6942 3969.9984 1.9850 198.4999 0.0992
Methylcyclohexane 0.2387 237.5034 11.8752 776.7530 0.3884 38.8376 0.0194
n-Octane 0.1314 130.7413 6.5371 427.5884 0.2138 21.3794 0.0107
n-Nonane 0.1195 118.9009 5:9450 388.8646 0.1944 19.4432 0.0097
n-Decane 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Decanes+ 0.0726 72.2360 3,6118 236.2474 0.1181 11.8124 0.0059
Benzene 0.2527 251.4332 12.5717 822.3103 0.4112 41.1155 0.0206
Toluene 0.1825 181.5851 5.0793 593.8727 0.2969 29.6936 0.0148
Ethylbenzene 0.0188 18.7058 O9353 61.1770 0.0306 3.0589 0.0015
m-Xylene 0.0516 51.3413 25671 167.9114 0.0840 8.3956 0.0042
p-Xylene 0.0000 - 0.0000 O0000 0.0000 0.0000 0.0000 0.0000
o-Xylene 0.0000 • 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
n-Hexane 1.2699 • 1,263.5337 63.1767 4132.3779 2.0662 206.6189 0.1033 ,
2,2,4-Trimethylpentane 0.0309 30.7451 1.5373 100.5516 0,0503 5.0276 0.0025
Total 100.000 162.7050 16270.5017 8.1353
Total VOC 68.9673 , 68,621.5536 3,431.0777 j 224526.8410 112.2131 11221.3145 5.6107
Note:Used composition(mole°/0 and HHV)of surge drums to be conservative
Note:Used composition from surge drum gas sample for 2,2,4-Trimethylpentane to be conservative(his value was not included in the VOC calculation)
Potential Emissions-Total Combustion of Gas
Emission Factor Source of Emission Gas Burned Estimated Emissions
Pollutant (lb/MMBtu) Factor (MMBtu/hr) Operation(hr/hr) (lb/hr) (lb/yr) (tpy)
NOx 0.068 AP-42 Table 13.5-1 4.711 1500 0.32 480.52 0.24
CO 0.310 AP-42 Table 13.5-2 4.711 1500 1.46 2190.60 1.10
Potential Pilot Emissions-Per Combustor
Emission Factor Emission Factor Source of Emission Annual Gas Use Estimated Emissions
Pollutant (lb/MMscf) (Ib/MMBtuf Factor (MMBtu/yr) Operation(hr/yr) (Ib/hr) (Ib/yr) (tpy)
NOx 100.00 9.80E-02 AP-42 Table 1.4-1 1277.500 8760.00 0.01 125.25 0.06
CO 84.00 8.24E-02 AP-42 Table 1.4-1 1277.500 8760.00 0.01 105.21 0.05
VOC 5.50 5.39E-03 AP-42 Table 1.4-2 1277.500 8760.00 0.00 6.89 0.00
SO2 0.60 5.88E-04 AP-42 Table 1.4-2 1277.500 8760.00 0.00 0.75 0.00
PM,PM,0,PMu.s 7.60 7.45E-03 AP-42 Table 1.4-2 1277.500 8760.00 0.00 9.52 0.00
Benzene 2.1E-03 2.06E-06 AP-42 Table 1.4-3 1277.500 8760.00 0.00 2.63E-03 1.32E-06
Dichlorobenzene 1.2E-03 1.18E-06 AP-42 Table 1.4-3 1277.500 8760.00 0.00 1.50E-03 7.51E-07
Formaldehyde 7.5E-02 7.35E-05 AP-42 Table 1.4-3 1277.500 8760.00 0.00 9.39E-02 4.70E-05
Hexane 1.8E+00 1.76E-03 AP-42 Table 1.4-3 1277.500 8760.00 0.00 2.25E+00 1.13E-03
Toluene 3.4E-03 3.33E-06 AP-42 Table 1.4-3 1277.500 I 8760.00 0.00 4.26E-03 2.13E-06
'Per Tables 1.4-1,1.4-2 and 1.4-3 emission factors were converted from lb/MMscf to Ib/MMBtu using 1020 Etu/scf
Model
Wells Ranch 25 Econode
LP Backup Burner Detail Sheet
Source ID Number
Equipment ID LP Gas Stream Condensate Throughput
SCC
Number of Burners 1 64571 bbVyr MODELED
Equipment Usage VOC Control 150000 REQUESTED
Equipment Make
Equipment Model Burner Combustion
Serial Number DRE 95%
Installation Date Fuel Heating Value 1905 Btu/scf
Emission Controls Actual Heat Output 4.153 MMBtu/hr
Max Pilot Volume Burned Per Burner 3.5 Mscf/day Potential Operation - 1500 hours/yr
Fuel Heating Value 1000 Btu/scf Max.Gas Burned 52.33 Mscf/day
Pilot Combustion Heat Output 1277.5 MMBTU/yr Max.Gas Burned - - 2.18 Mscf/hr
Waste Combustion Heat Output 4.2 MMBTU/hr Max.Gas"Burned 3270.49 Mscf/yr
3.27 MMscf/yr
Annual Hours of Operation 8760.00
Total Potential Emissions Pre-Control Controlled Emission Factor(Ib/MMscf)
Pollutant Ib/hr lb/yr tpy lb/hr lb/yr tpy Uncontrolled Controlled
NOx 0.30 551 0.28 0.30 551 0.28 168.59 168.59
CO 1.30 2039 1.02 1.30 2039 1.02 623.30 623.30
VOC 121.14 181712 90.86 6.06 9092 4.55 55561.10 2780.10
SO2 0.00 1 0.00 0.00 1- 0.00 0.23 0.23
PM,PM10,PM2.5 0.00 10 0.00 0.00 10 0.00 2.97 2.97
Benzene 1.47 - 2203 1.10 0,07- 110 - 0.06 673.48 - -33:67
Dichlorobenzene 0.00 0 0.00 0.00 0 0.00 0.00 0.00
Formaldehyde 0.00 0 0.00 0.00 0 0.00 0.03 0.03
Hexane 8.54 12813 6.41--0.43 - 643 - - -0.32 3917.82 .'196.56
Toluene 1.00 1501 0.75 0.05 75 - 0.04 458.89 - 22.95
E-Benzene 0.08 115 0.06 0.00 6 0.00 35.14. 1.76
Xylenes - 0.36 - 540 - 0.27 0.02- 27 0.01 165.07 8.25
224-Mpentane 0.37 562 0.28 0.02 28 -0.01 171.96 -8.60
Value.Used in Permit
Potential Emissions from Pilot Combustion
Pollutant Emission Emission Annual Hrs of Estimated Emissions Source of
Factor Factor Gas Usage Operation Emission
(lb/MMscf) (lb/MMBtu) (MMscf/yr) (hrs/yr) (lb/hr) (lb/yr) OW) Factor
NOx 100.00 9.80E-02 1.278 8760.00 0.01 127.75 0.06 AP-42'
CO 84.00 8.24E-02 1.278 8760.00 0.01 107.31 0.05 AP-421
VOC 5.50 5.39E-03 1.278 8760.00 0.00 7.03 0.00 AP-42
SO2 0.60 5.88E-04 1.278 8760.00 0.00 0.77 0.00 AP-42'
PM,PM10,PM25 7.60 7.45E-03 1.278 8760.00 0.00 9.71 0.00 AP-42'
Benzene 2.1E-03 2.06E-06 1.278 8760.00 0.00 2.68E-03 1.34E-06 AP-42'
Dichlorobenzene 1.2E-03 1.18E-06 1.278 8760.00 0.00 1.53E-03 7.67E-07 AP-4`
5
Formaldehyde 7.5E-02 7.35E-05 1.278 8760.00 0.00 9.58E-02 4.79E-05 AP-42'
Hexane - 1.8E+00 1.76E-03 1.278 8760.00 0.00 2.30E+00 1.15E-03 AP-42'
Toluene 3.4E-03 3.33E-06 1.278 8760.00 0.00 4.34E-03 2.17E-06 AP-425
Potential Emissions-Combustion of HT and Surge Drum Gas
Pollutant Emission Burner Heat Hrs of Estimated Emissions Source of
Factor Output Operation Emission
(Ib/MMBtu) MMBtu/hr (hrs/yr) (lb/hr) (Ib/yr) (tpy) Factor
NOx 0.068 4.153 1500 0.28 423.62 0.21 AP-42'
CO 0.310 4.153 1500 1.29 1931.20 0.97 AP-425
1 EPA AP-42,Volume I,Fifth Edition-July 1998,Table 1.4-1,Emission Factors for Nitrogen Oxides(NOx)and Carbon Monoxide(CO)from Natural Gas Combustion. Per
footnote a of Table 1.4-1.emission factors are converted to lb/MMBtu by dividino by 1020 Btu/scf.
2 EPA AP-42,Volume I,Fifth Edition-July 1998,Table 1.4-2,Emission Factors for Criteria Pollutants and Greenhouse Gases from Natural Gas Combustion. Per footnote a of
Table 1.4-2,emission factors are converted to lb/MMBtu by dividing by 1020 Btu/scf.PM includes both condensible and filterable PM. All PM is assumed to be PM2.5,so PM
=PM10=PM2.5.
3 EPA AP-42,Volume I,Fifth Edition-July 1998,Table 1.4-3,Emission Factors for Speciated Organic Compounds from Natural Gas Combustion. Per footnote a of Table 1.4-
3,emission factors are converted to lb/MMBtu by dividing by 1020 Btu/scf.
"Flare emission factors from AP-42 Table 13.5-1 Emission Factors for Flare Operations
Potential Emissions-5%VOC Slip by VOC Combustor(HYSYS Simulation Supported Calculation)
lb/hr
Mole lb/hr lb/yr tpy (Post- lb/yr tpy
Component Fraction scf/hr Ib/Ib-mol (Pre-Control) (Pre-Control) (Pre-Control) Control) (Post-Control (Post-Control)
H2S 0.0000 0.0000 34.0800 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Oxygen 0.0000. 0.0000 32.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
CO2 0.0209 45.6229 44.0097 5.3007 7951.0908 3.9755 0.2650 397.5545 0.1988
Nitrogen 0.0499 108.7885 28.0130 8.0454 12068.0646 6.0340 0.4023 603.4032 0.3017
Methane 0.3474 757.3962 16.0429 32.0782 48117.2924 24.0586 1.6039 2405.8646 1.2029
Ethane 0.2156 470.1765 30.0699 37.3247 55987.1141 27.9936 1.8662 2799.3557 1.3997
Propane 0.1910 416.3998 44.0970 48.4756 72713.4570 36.3567 2.4238 3635.6728 1.8178
i-Butane 0.0230 50.0643 58.1240 7.6822 11523.3596 5.7617 0.3841 576.1680 0.2881
n-Butane 0.0613 133.5846 58.1240 20.4982 30747.3002 15.3737 1.0249 1537.3650 0.7687
i-Pentane 0.0098 - 21.3803 72.1510 4.0725 6108.7490 3.0544 0.2036 305.4375 0.1527
n-Pentane 0.0102 22.1763 72.1510 4.2241 6336.1709 3.1681 0.2112 316.8085 0.1584
Cyclopentane 0.0071 15.4846 70.1000 2.8656 4298.4560 2.1492 0.1433 214.9228 0.1075
2-Mpentane 0.0000 0.0000 86.1779 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
3-Mpentane 0.0000 0.0000 86.1779 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Cyclohexane 0.0233 50.8815 84.1600 11.3050 16957.4657 8.4787 0.5652 847.8733 0.4239
n-Heptane 0.0129 28.2136 100.2050 7.4637 11195.4901 5.5977 0.3732 559.7745 0.2799
n-Octane 0.0027 5.7896 114.2320 1.7460 2618.9921 1.3095 0.0873 130.9496 0.0655
n-Nonane 0.0008 1.8153 128.2590 0.6147 922.0245 0.4610 0.0307 46.1012 0.0231
n-Decane 0.0000 0.0000 142.2850 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Decanes+ 0.0004 0.9801 142.2850 0.3681 552.2132 0.2761 0.0184 27.6107 0.0138
Benzene - 0.0033 7.1209 78.1100 1.4684 2202.6170 1.1013 0.0734 110.1308 0.0551
Toluene 0.0019 4.1131 92.1408 1.0005 1500.7894 0.7504 0.0500 75.0395 0.0375
I Ethylbenzene 0.0001 0.2734 106.1660 0.0766 114.9278 0.0575 0.0038 5.7464 0.0029
p-Xylene 0.0000 0.0000 - 106.1660 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
o-Xylene 0.0000 0.0000 106.1660 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
m-Xylene 0.0006 1.2841 106.1660 0.3599 539.8647 0.2699 0.0180 26.9932 0.0135
n-Hexane - 0.0172 37.5395 86.1779 8.5406 12810.8956 6.4054 0.4270 640.5448 0.3203
2,2,4-Trimethylpentane 0.0006 1.2432 114.2320 0.3749 562.3814 0.2812 0.0187 28.1191 0.0141
Total 1.000 2180.3285 2238.0690 203.8858 305828.7158 152.9144 10.1943 15291.4358 7.6457
Total VOC 0.3662 798.3444 2053.8535 121.1368 181705.1540 90.8526 6.0568 9085.2577 4.5426
Colorado Department of Public Health and Environment r
�Form APCD-102 /�
Air Pollution Control Division
Facility Wide Emissions Inventory Form '^,.,r0"
Ver.September 10,2008 Colorado Department
Company Name: Noble Energy,Inc. of Public Ankh
Source Name: Wells Ranch EcoNode-Section 25 and hnw'trottnrene
Source AIRS ID: 123-9586
Uncontrolled Potential to Emit(PTE) Controlled Potential to Emit(PTE)
Criteria(TTY) I HAW(ibslyr) Criteria(TPY) I HAPs tilm/yri
-
MRS ii) Equipment Description TSP PM10 PM2.5 SO2 NOx CO VOC I lIZ Tol ER Xyl I1C110 Aretal Acro n-Ilex Meth 224-TMP-TSP PM 10 PM2.5 SO2 NOx CO VOC I RZ Tnl ER Xyl IICHO Acetyl Acro n-llex Meth 224-TMP
I
12_3.9586-11117 70(415X17940 3.3 2.7 292.0 211118 16,425 _ 3.3 2.7 14.6 I 11(9 821
123.9586-1918 TB415826210 11.2 11.1 13.6 04 7(15 11.2 _ 11.1 11.7 I 5 38
123-0586-0111 7.0415817940 168.9 3.650 5,475 1,825 _ 5,475 9.4 I. 183 274 91 _ 548
123-9586x111 TL4158262111 8.8 170 255 85 255 114 I 9 13 4 13
123-9586-016 ENO-1EF02575 0.5 0.5 0.5 11.0 6.7 41.6 16.7 43 9,594 812 500 0.5 11.5 (1.5 _0.0 6.7 13.3 6.4 1 43 _ 2,932 812 5011
123-95864112 Flare 112.3 I 2,203 1,501 115 540 12,813 562 11.3. 1.1 5.6 I 110 75 6 27 643 28
123-9586-922 VRT Ruiners 33.0 I 799 509 36 I71 4,644 194 11.3 11.5 1.7 I 4(1 25 2 9 241 _ III
123-9586-1121 COMP-N4002050 0.11 0.11 0.0 (1(1 12.3 12.3 0.8 I_ 12 514 22 2(1 0.0 (1.0 0.0 11.11 2.6 4.4 0.8 I 12 _ 514 22 211
1239586.1(23 000-00K91665 0.2 0.2 0.2 11.11 8.7 19.9 6.2 I 21 5,997 404 248 121 11.2 (1.2 0.2 11.11 6.7 111.11 4.7 I 21 5,097 4114 248
Perndlled Soarers Subtotal= 0.8 11.8 11.8 0.0 29.1 76.7 674.2 11999.0 7739.9 151.3 26211.6 16104.7 1237.8 768.1 40377.11 120.8 756.6 0.8 0.8 11.8 II.) 20.11 32.3 44.3 522.4 387.11 7.6 131.11 9441.9 1237.8 768.1 23113.5 1(41 37.8
ADEN Only-Permit Exempt Sources
123-9586-1109 PW415817940 65.5 ' 3,5011 11,11011 3.3 . 175 55(1
123-9586-020 ENO-910353 0.0 0.0 (1.0 (((1 0.4 24.3 0.7 3 38 5 5 11.0 0.0 ((0 _0.0 0.4 24.3 0.7 1 3 38 5 5
1 I
APEN Only Subtotal= 0.0 0.0 11.0 9.0 0.4 24.3 66.2 1 3503 0 0 0 38 5 5 11)0(1 0 11 0.0 0.0 (1.0 0.0 0.4 24.3 4.0 1 178 0 0 0 38 5 5 550 0 0
APEN Exempt/Insignificant sources e
Separator'irate.(30) (1.3 11.11 3.4 2.8 11.2 0 0 0 0.3 (1.1) 3.4 2.8 11.2 0 11 0
VOC Ruiners(8) (1.5 11(1 (1.0 5.0 103 0 11 9 11.5 110 11.9 5.0 11.3 i 0 11 0 -
Fugilives 0.9 11.9 I
II
123 0566 018 VRT"R1121Lntvlcd 2.18 I,, -- -
Insignificant Subtotal= 0.11 0.7 0.0 0.1 4.2 7.8 1.5 0 1 0 0 9 II 0 0 0 _ 0 0.0 (I.7 OM 0.1 4.2 7.8 1.5 0 1 0 0 9 0 0 0 0 11
Total,All Source=l 0.8 1 1.5 1 OA I 0.1 I 33.7 1 108:8 1 7419 1 12,502 I 7,740 I 151 1 2,621 1 16,152 1 1,243 1 773 151,377 1 121 I 757 L 0.8 1 1.5 1 0.8 1 0.1 1 24.6 1 64.4 1 49.8 I 701 I 388 1 8 1 131 1 9,489 1 1,243 1 773 I 2,854 I 0 I 38
Uncontrolled 11A1's Summary(TPY)=1 6.3 1 3.9 I 11.1 I 1.3 I 8.1 1 0.6 I 0.4 I 25.7 1 11.1 I 0,4 1 Controlled OAPs Summary(TPY)=1 IIA 1 (I.2 1 11.11 1 0.1 1 4.7 I 0.6 1 0.4 1 1.4 1 11.0 I 0.0
Uncontrolled Total,All HAPs(TPY)=11 46,7 I Controlled Total,All RAPS(TPY)= 7.8
Footnotes:
1.This form should be completed to include both existing sources and all proposed new or modifications to existing emissions sources
2. If the emissions source is new then enter"proposed"under the Permit No.and AIRS ID data columns
3. HAP abbreviations include:
lIZ=Benzene 224-TMP=2,2,4-Trimethylpentanc
ToI=Toluene Acetal=Acetaldehyde
RD=Ethylbenzene Acro=Acrolein
Xyl=Xylene n-Ilex=n-Ilexa no
IICAO=Formaldehyde Meth=Methanol ,
4.APEN Exemptilmignificant Sources should be included when warranted.
Company Name 5/5/2020 Page 1 of 1
Gas Venting APEN -- Form
Air Pollutant Emission Notice (APEN) and
Application for Construction Permit
AR sections of this APEN and application must be completed for both new and existing facilities, including APEN
updates. An application with missing information may be determined incomplete and may be returned or result in
longer application processing times. You may be charged an additional APEN fee if the APEN is filled out
incorrectly or is missing information and requires re-submittal.
This APEN is to be used for gas venting only. Gas venting includes emissions from gas/liquid separators, well head
casing, pneumatic pumps, blowdown events, among other events. If your emission unit does not fall into this
category, there may be a more specific APEN for your source(e.g. amine sweetening unit, hydrocarbon liquid
loading, condensate storage tanks, 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
Mr Pollution Control Division (APCD)website at: www.colorado.gov/cdphe/aped.
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: 19WNE0545 AIRS ID Number: 123 /9586 /022
ha.alie,sc : 1^d AIRS ID)
Section 1 -Administrative Information
Company Name': Noble Energy Inc.
Site Name: WELLS RANCH AA25 &26 ECONODE
Site Location: SWNW SEC25 T6N R63W Site Location Weld
County:
NAICS or SIC Code: 1311
Mailing Address: 1625 Broadway,
(include Zip Code) Suite 2200
Denver, CO 80202 Contact Person: Janessa Salgado
Phone Number: 303-228-4196
E-Mail Address2: janessa.salgado@nblenergy.com
i 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.
__ - 1 I ,
Permit Number: 19WE0545 AIRS ID Number: 123 /9586/022
,� ._ ::':�, d .;ncd a lief[nit aIIC
Section 2 - Requested Action
Q NEW permit OR newly-reported emission source
-OR-
❑ MODIFICATION to existing permit (check each box below that applies)
❑ Change fuel or equipment ❑ Change company name3 ❑ Add point to existing permit
❑ Change permit limit O Transfer of ownership4 ❑ Other(describe below)
-OR
• APEN submittal for update only(Note blank APENs will not be accepted)
-ADDITIONAL PERMIT ACTIONS -
E] Limit Hazardous Air Pollutants(HAPs)with a federally-enforceable limit on Potential To Emit(PTE)
Additional Info & Notes:
3 For company name change,a completed Company Name Change Certification Form (Form APCD-106)must be submitted.
4 For transfer of ownership,a completed Transfer of Ownership Certification Form (Form APCD-104)must be submitted.
Section 3 - General Information
General description of equipment and purpose: VRT gas stream
Company equipment Identification No. (optional):
For existing sources, operation began on: 1/30/2012
For new, modified, or reconstructed sources, the projected start-up date is:
®Check this box if operating hours are 8,760 hours per year; if fewer, fill out the fields below:
Normal Hours of Source
hours/day days/week weeks/year
Operation:
Will this equipment be operated in any NAAQS
Yes ❑ No
nonattainment area?
Is this equipment located at a stationary source that is ❑ Yes O No
considered a Major Source of(HAP) Emissions?
Is this equipment subject to Colorado Regulation No. 7, ® Yes ❑ No
Section XVII.G?
OLOR DO
Permit Number: 19WE0545 AIRS ID Number: 123 /9586 /022
Urk,SS AP C at,ready assigned a pens ID]
Section 4 - Process Equipment Information
ri Gas/Liquid Separator
❑ Well Head Casing
El Pneumatic Pump
Make: Model: Serial#: Capacity: gal/min
❑ Compressor Rod Packing
Make: Model: #of Pistons: Leak Rate: Scf/hr/pist
❑ Blowdown Events
#of Events/year: Volume per event: MMscf/event
❑ Other
Description:
If you are requesting uncontrolled VOC emissions greater than 100 tpy for a gas/liquid separator, you must use Gas
Venting as a process parameter.
Are requested uncontrolled VOC emissions greater than 100 tpy? 0 Yes ❑ No
Vent Gas
Gas Venting Heating Value: 251 BTU/SCF
5
Process Parameters: Requested: 0.71 MMSCF/year Actual: MMSCF/year
-OR-
Liquid Throughput
Process Parameters Requested: bbl/year Actual: bbl/year
Molecular Weight: 45.34521
VOC(Weight%) 77,7%
Benzene(Weight%) 0.94%
Vented Gas Toluene(Weight%) 0.60%
Properties: Ethylbenzene(Weight%) 0.04%
Xylene(Weight%) 0.20%
n-Hexane(Weight%) 5.47%
2,2,4-Trimethylpentane(Weight%) 0.23%
Additional Required Information:
O Attach a representative gas analysis(including BTEX ft n-Hexane, temperature, and pressure)
® Attach a representative pressurized extended liquids analysis(including BTEX ft n-Hexane, temperature, and
pressure)
•
5 Requested values will become permit limitations. Requested limit(s)should consider future process growth.
_ COLC
Fern!f,.°._0'�{' Ga, �e�.'i��ll'.':� APEEN R',�'i1s„i.. / 2_01'03 I -! -,�...
Permit Number: 19WE0545 AIRS ID Number: 123 /9586/022
otan..unta .A Ci)has areal a..,ra•,ed a perruit and A;c:,
Section 5 - Stack Information
Geographical Coordinates
(Latitude/Longitude or UTM)
40.4590, -104.3941
Operator Discharge Height Temp, Flow Rate Velocity
Stack ID No. Above Ground Level (SF) (ACFM) (ft/sec)
(Feet)
Cimmaron 48" I
Indicate the direction of the stack outlet: (check one)
❑✓ Upward ❑Downward ❑Upward with obstructing raincap
❑Horizontal ❑Other(describe):
Indicate the stack opening and size: (check one)
❑✓ Circular Interior stack diameter(inches):
❑Other(describe):
Section 6 - Control Device Information
❑ Check this box if no emission control equipment or practices are used to reduce emissions, and skip to the next section.
Pollutants Controlled:
Size: Make/Model:
❑ VRU:
Requested Control Efficiency:
VRU Downtime or Bypassed: %
Pollutants Controlled: VOC, HAPs
Rating: MMBtu/hr
Type: VOC Burner Make/Model:
❑
Combustion Requested Control Efficiency: 95 %
Device:
Manufacturer Guaranteed Control Efficiency: 98
Minimum Temperature: Waste Gas Heat Content: Btu/scf
Constant Pilot Light: ® Yes ❑ No Pilot burner Rating: MMBtu/hr
Pollutants Controlled:
❑ Other: Description:
Requested Control Efficiency:
K Loacenua
- _ . C., . �•e,,l } PE. n..•,:, 7 �: r: 4 I
Permit Number: 19WE0545 AIRS ID Number: 123 /9586/022
e. bi.inl Lit. n , , ::I 1 I,c'ml r
Section 7- Emissions Inventory Information
Attach all emissions calculations and emission factor documentation to this APEN form.
If multiple emission control methods were identified in Section 6, the following table can be used to state the
overall (or combined) control efficiency(%reduction):
Overall Requested
Pollutant Description of Control Method(s) Control Efficiency
(%reduction in emissions)
PM
SOX
NOX
CO
VOC VOC Burner 95%
NAPS VOC Burner 95%
Other:
From what year is the following reported actual annual emissions data?
Criteria Pollutant Emissions Inventory
Emission Factor Actual Annual Emissions Requested Annual Permit
Pollutant Emission Limit(s)5
Uncontrolled Source Uncontrolled Controlled Uncontrolled Controlled
Basis Units (AP-42, Emissions Emissions6 Emissions Emissions
Mfg.,etc.) (tons/year) (tons/year) (tons/year) (tons/year)
PM 7.6 lb/MMscf AP-42 0.00 0.00
SOX 0.6 lb/MMscf AP-42 0.00 0.00
NOX 892.4396 lb/MMscf AP-42 0.32 0.32
CO 1,385.7211 Ib/MMscf AP-42 0.49 0.49
VOC 93,054.4287 lb/MMscf Model,AP-42 32.96 1.66
Non-Criteria Reportable Pollutant Emissions Inventory
Chemical Emission Factor Actual Annual Emissions
Abstract
Chemical Name Source Uncontrolled Controlled
Service(CAS) Uncontrolled
Basis Units (AP-42, Emissions Emissions6
Number Mfg.,etc.) (pounds/year) (pounds/year)
Benzene 71432 1,128.2497 Ib/MMscf Model/AP-42 799 40
Toluene 108883 718.6696 lb/MMscf Model/AP-42 509 25
Ethylbenzene 100414
Xylene 1330207
n-Hexane 110543 6,555.8297 Ib/MMscf Model/AP-42 4,644 241
2,2,4-
Trimethylpentane 540841
Other:
5 Requested values will become permit limitations. Requested Limit(s)should consider future process growth.
6 Annual emissions fees will be based on actual controlled emissions reported. If source has not yet started operating,leave
blank.
r ,——; >I a
sc
Permit Number: 19WE0545 AIRS ID Number: 123 /9586/022
Section 8 - Applicant Certification
I hereby certify that all information contained herein and information submitted with this application is complete,
true, and correct.
tiliTtOAIA iti6 11/11/2019
Si nature of Legally Authori ed Person(not a vendor or consultant) Date
Janessa Salgado Environmental Engineer
Name(please print) Title
Check the appropriate box to request a copy of the:
0✓ 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, II.C. for revised APEN requirements.
Send this form along with $191.13 to: For more information or assistance call:
Colorado Department of Public Health and Environment Small Business Assistance Program
Air Pollution Control Division (303) 692-3175 or (303) 692-3148
APCD-SS-B1
4300 Cherry Creek Drive South APCD Main Phone Number
Denver, CO 80246-1530 (303) 692-3150
Make check payable to: Or visit the APCD website at:
Colorado Department of Public Health and Environment https://www.colorado.gov/cdohe/apcd
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