HomeMy WebLinkAbout20142732 CDPHE COLORADO
CO Department of Public
.. Health&Environment
Dedicated to protecting and improving the health and environment of the people of Colorado
Weld County-Clerk to the Board
1150 O St
POBox758 RECEIVED
Greeley, CO 80632
August 28, 2014 SEP 0 2 2014
WELD COUNTY
COMMISSIONERS
Dear Sir or Madam:
On August 31. 2014,the Air Pollution Control Division will publish a public notice for Carrizo Oil and Gas. Inc.
—O'Hare 1-5-10-57. in the The Greeley Tribune. 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 date the public notice is published.
Please send any comment regarding this public notice to the address below.
Colorado Dept. of Public Health& Environment
APCD-SS-B I
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Attention: Clara Gonzales
Regards,
%I
Clara Gonzales
Public Notice Coordinator
Stationary Sources Program
Air Pollution Control Division
Enclosure
2014-2732
9 -ID' Iq 4/5
CDPHE Public Notice Of A Proposed Project
CO
Or Activity Warranting Public
Comment
Website Title: Carrizo Oil and Gas, Inc.—O'Hare 1-5-10-57— Weld County
Released To: The Greeley Tribune
On: August 28, 2014
Published: August 31, 2014
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: Carrizo Oil and Gas, Inc.
Facility: O'Hare 1-5-10-57
Oil and Gas Exploration and Production site
18.2 miles north of Raymer, Colorado 80742 (Lot 3, Section 5,TI ON, R57W)
Weld County
The proposed project or activity is as follows: Operator requests a permit for a gas/liquid separator with a 25' flare stack.
The requested though-put is 90.7 MMscf of separator vapors per year.
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):
• permitted emissions exceed public notice threshold values in Regulation No. 3. Part B, Section III.C.I.a(25 tpy
in a non-attainment area and/or 50 tpy in an attainment area)
• 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 14WE0649 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. Any such
comment must be submitted in writing to the following addressee:
Kirk Bear
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South. APCD-SS-B1
Denver, Colorado 80246-1530
cdphe.commentsapcd@state.co.us
1 I AT cowx=
STATE OF COLORADO
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT ,4;Oa.
AIR POLLUTION CONTROL DIVISION } z
TELEPHONE: (303)692-3150
*1876•
CONSTRUCTION PERMIT
PERMIT NO: 14WE0649
Issuance 1
DATE ISSUED:
ISSUED TO: Carrizo Oil and Gas, Inc.
THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS:
Oil and gas exploration and production facility known as the O'hare 1-5-10-57, located in
the Lot 3, Section 5, T10N, R57W,Weld County, Colorado.
THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING:
Facility AIRS
Equipment ID Point Description
SEPARATOR 005 Separator controlled by a 25' flare stack. Flare has a minimum
combustion efficiency of 95%. The flare is not enclosed.
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 THOSE 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 after issuance of this permit, by submitting a Notice of Startup form to
the Division. The Notice of Startup form may be downloaded online at
www.cdphe.state.co.us/ap/downloadforms.html. Failure to notify the Division of startup
of the permitted source is a violation of Air Quality Control Commission (AQCC)
Regulation No. 3, Part B, Section III.G.1 and can result in the revocation of the permit.
2. Within one hundred and eighty days (180) after issuance of this permit, compliance with
the conditions contained in this permit shall 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.
(Reference: Regulation No. 3, Part B, III.G.2).
3. This permit shall 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
AIRS ID: 123-9CA5-005 Page 1 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
deadline per Regulation No. 3, Part B, III.F.4.b. (Reference: Regulation No. 3, Part B,
III.F.4.).
4. The operator shall 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.
(Reference: Regulation No. 3, Part B, Section III.E.)
5. Within one hundred and eighty days (180) after issuance of this permit, the operator
shall install a flow meter to monitor and record volumetric flow rate of natural gas vented
from each separator. The operator shall use the gas flow rate listed in the application for
actual flow rate until the flow meter is installed, not to exceed one hundred and eighty
(180)days after issuance of this permit.
6. The following information shall be provided to the Division within fifteen (15) days after
issuance of permit.
• manufacturer
• model number
• serial number
This information shall be included with the Notice of Startup submitted for the equipment.
(Reference: Regulation No. 3, Part B, III.E.)
7. The operator shall 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
8. Emissions of air pollutants shall not exceed the following limitations (as calculated in the
Division's preliminary analysis). (Reference: Regulation No. 3, Part B, Section II.A.4)
Annual Limits:
Facility AIRS Tons per Year
Equipment ID Point NO, VOC CO Emission Type
SEPARATOR 005 4.5 62.9 24.4 Point
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 shall be less than 8.0
tpy.
Facility-wide emissions of total hazardous air pollutants shall be less than 20.0 tpy.
Compliance with the annual limits shall be determined by recording the facility's annual
criteria pollutant emissions, (including all HAPs above the de-minimis reporting level)
from each emission unit, on a rolling twelve (12) month total. By the end of each month
a new twelve-month total shall be calculated based on the previous twelve months' data.
The permit holder shall calculate emissions each month and keep a compliance record
on site or at a local field office with site responsibility, for Division review. This rolling
twelve-month total shall apply to all permitted emission units, requiring an APEN, at this
facility.
AIRS ID: 123-9CA5-005 Page 2 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
9. The emission points in the table below shall be operated and maintained with the control
equipment as listed in order to reduce emissions to less than or equal to the limits
established in this permit (Reference: Regulation No.3, Part B, Section III.E.)
Facility AIRS Point Control Device Pollutants
Equipment ID Controlled
SEPARATOR 005 Open Flare VOC
PROCESS LIMITATIONS AND RECORDS
10. This source shall be limited to the following maximum processing rates as listed below.
Monthly records of the actual processing rates shall be maintained by the owner or
operator and made available to the Division for inspection upon request. (Reference:
Regulation 3, Part B, II.A.4)
Process/Consumption Limits
Facility AIRS Point Process Parameter Annual Limit
Equipment ID
SEPARATOR 005 Gas Vented from Separator 90.7 MMscf
Compliance with the annual throughput limits shall be determined on a rolling twelve (12)
month total. By the end of each month a new twelve-month total is calculated based on
the previous twelve months' data. The permit holder shall calculate throughput each
month and keep a compliance record on site or at a local field office with site
responsibility, for Division review.
11. Upon installation of the flow meter required under Condition 5, the owner or operator
shall continuously monitor and record the volumetric flow rate of natural gas vented from
each separator using a flow meter. The flow meter shall continuously measure flow rate
and record total volumetric flow vented from each separator. The owner or operator shall
use monthly throughput records to demonstrate compliance with the limits specified in
Condition 10 and to calculate emissions as described in this permit.
STATE AND FEDERAL REGULATORY REQUIREMENTS
12. The permit number and AIRS ID point number (e.g. 123/4567/890) shall be marked on
the subject equipment for ease of identification. (Reference: Regulation Number 3, Part
B, III.E.) (State only enforceable)
13. Visible emissions shall not exceed twenty percent (20%) opacity during normal operation
of the source. During periods of startup, process modification, or adjustment of control
equipment visible emissions shall not exceed 30% opacity for more than six minutes in
any sixty consecutive minutes. Emission control devices subject to Regulation 7,
Sections XII.C.1.d or XVII.B.1.c shall have no visible emissions. (Reference: Regulation
No. 1, Section II.A.1. &4.)
14. No owner or operator of a smokeless flare or other flare for the combustion of waste
gases shall allow or cause emissions into the atmosphere of any air pollutant which is in
AIRS ID: 123-9CA5-005 Page 3 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
excess of 30% opacity for a period or periods aggregating more than six minutes in any
sixty consecutive minutes. (Reference: Regulation No. 1, Section II.A.5.)
15. This source is subject to the odor requirements of Regulation No. 2. (State only
enforceable)
OPERATING & MAINTENANCE REQUIREMENTS
16. Upon startup of these points, the owner or operator shall 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 your O&M plan are subject to Division approval prior to
implementation. (Reference: Regulation No. 3, Part B, Section III.G.7.)
COMPLIANCE TESTING AND SAMPLING
Initial Testing Requirements
17. The owner or operator shall demonstrate compliance with opacity standards, using EPA
Method 9 to measure opacity from the flare. (Reference: Regulation No. 1, Section II.A.1
&4)
Periodic Testing Requirements
18. On an annual basis, the operator shall complete a site specific extended gas analysis of
the natural gas produced at this site that is routed to the flare in order to verify the VOC
content (weight fraction) of this emission stream used in the permit application. Results
of testing shall be used to determine site-specific emission factors using Division
approved methods.
ADDITIONAL REQUIREMENTS
19. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Regulation
No. 3, Part A, II.C)
a. 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 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.
b. Whenever there is a change in the owner or operator of any facility, process, or
activity; or
c. Whenever new control equipment is installed, or whenever a different type of
control equipment replaces an existing type of control equipment; or
AIRS ID: 123-9CA5-005 Page 4 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
d. Whenever a permit limitation must be modified; or
e. No later than 30 days before the existing APEN expires.
20. Federal regulatory program requirements (i.e. PSD, NANSR or Title V Operating Permit)
shall 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 shall
not exceed the Federal program threshold until a permit is granted. (Regulation No. 3
Part D).
GENERAL TERMS AND CONDITIONS
21. 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 No. 3, Part B, Section II.B upon a request for transfer of ownership
and the submittal of a revised APEN and the required fee.
22. 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 No. 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.
23. 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.
24. 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.
25. Each and every condition of this permit is a material part hereof and is not severable.
Any challenge to or appeal of a condition hereof shall constitute a rejection of the entire
permit and upon such occurrence, this permit shall be deemed denied ab initio. This
permit may be revoked at any time prior to self-certification and final authorization by the
Air Pollution Control Division (APCD) on grounds set forth in the Colorado Air Quality
Control Act and regulations of the Air Quality Control Commission (AQCC), including
failure to meet any express term or condition of the permit. If the Division denies a
permit, conditions imposed upon a permit are contested by the owner or operator, or the
Division revokes a permit, the owner or operator of a source may request a hearing
before the AQCC for review of the Division's action.
26. 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
AIRS ID: 123-9CA5-005 Page 5 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
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.
27. 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:
Kirk Bear
Permit Engineer
Permit History
Issuance Date Description
Issuance 1 This Issuance Issued to Carrizo Oil and Gas, Inc.
AIRS ID: 123-9CA5-005 Page 6 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
Notes to Permit Holder at the time of this permit issuance:
1) The permit holder is required to pay fees for the processing time for this permit. An invoice for these
fees will be issued after the permit is issued. The permit holder shall pay the invoice within 30 days of
receipt of the invoice. Failure to pay the invoice will result in revocation of this permit (Reference:
Regulation No. 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 shall notify the Division
of any malfunction condition which causes a violation of any emission limit or limits stated in this
permit as soon as possible, but no later than noon of the next working day, followed by written notice
to the Division addressing all of the criteria set forth in Part II.E.1 of the Common Provisions
Regulation. See: http://www.colorado.aov/cs/Satellite?c=Document C&childpagename=CDPHE-
Main%2FDocument C%2FCBONAddLinkView&cid=1251599389641&pagename=CBONWrapper
4) The following emissions of non-criteria reportable air pollutants are estimated based upon the process
limits as indicated in this permit. This information is listed to inform the operator of the Division's analysis
of the specific compounds emitted if the source(s) operate at the permitted limitations.
Uncontrolled Controlled
AIRS Pollutant CAS# Emissions reportable Emissions
Point (Ib/yr) (Ib/yr)
005 Benzene 71432 9593 Yes 480
005 n-Hexane 110543 63549 Yes 3177
005 Toluene 108883 6949 Yes 347
005 Ethylbenzene 100414 813 Yes 41
005 Xylenes 1330207 1525 Yes 76
5) The emission levels contained in this permit are based on the following emission factors: •
Emission Emission
Pollutant Factors Factors Source
Uncontrolled Controlled
(Ib/MMscf) (lb/MMscf)
NOx(lb/MMBTU) 0.068 0.068 AP-42
CO (Ib/MMBTU) 0.37 0.37 AP-42
VOC 27733.42 1386.67 Gas Analysis
Benzene 105.73 5.28 Gas Analysis
Toluene 76.58 3.82 Gas Analysis
Ethylbenzene 8.96 0.44 Gas Analysis
Xylenes 16.81 0.84 Gas Analysis
n-hexane 700.35 35.01 Gas Analysis
6) In accordance with C.R.S. 25-7-114.1, each Air Pollutant Emission Notice (APEN)associated with
this permit is valid for a term of five years from the date it was received by the Division.A revised
APEN shall be submitted no later than 30 days before the five-year term expires. Please refer to the
AIRS ID: 123-9CA5-005 Page 7 of 8
Colorado Department of Public Health and Environment
Air Pollution Control Division
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, HAPs
PSD Synthetic Minor Source of: VOC, HAPs
MACT HH Major Source Requirements: Not Applicable
Area Source Requirements: Not Applicable
8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be
found at the website listed below:
htto://ecfr.aaoaccess.aov/
Part 60: Standards of Performance for New Stationary Sources
NSPS 60.1-End Subpart A—Subpart KKKK
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 7777—Subpart MMMMM
MACT 63.8980-End Subpart NNNNN—Subpart XXXXX(
9) A self certification form and guidance on how to self-certify compliance as required by this permit may
be obtained online at: http://www.coloradomov/pacific/cdohe/air-oermit-self-certification
AIRS ID: 123-9CA5-005 Page 8 of 8
Division Information
Engineer: Kirk Bear
Control Engineer: Christopher Laplante
Review Date: 08/12/2014
Application Date: 03/20/2014
Facility Identifiers
Permit No. 14WE0649
AIRS County# 123 Weld
Facility# 9CA5
Facility Type: exploration and production facility
O Located in the 8-hour non-attainment area? O True Minor
Synthetic Minor for: r VOC r NOx r co
Administrative Information
Company Name: Carrizo Oil and Gas, Inc.
Source Name: O'hare 1-5-10-57
Source Location: Lot 3, Section 5, T1 ON, R57W
SIC: 211111
Address 1: Carrizo Oil and Gas, Inc.
Mailing Address 2: 500 Dallas,Suite 2300
Address
City,State Zip: Houston,Texas 77002
Name: Patricia Moden
Person To Phone: 713 328 1036
Contact Fax: 713 328 1060
Email: Patricia.Moden@Crzo.net
'Requested Action
Self Certification Required? Yes
Issuance Number: 1
Source Description:
Oil and gas exploration and production facility known as the O'hare 1-5-10-57,located in the Lot 3, Section 5,T10N,
R57W,Weld County, Colorado.
Point Name Type Control Action
Newly
005 SEPARATOR Separator Venting Flare reported
source
Separator controlled by a 25'flare stack.Flare has a minimum combustion efficiency of 95%. The flare is
005 not enclosed.
Equipment Description
This source vents natural gas from: a well head separator
Emissions from this source are: routed to a flare
Natural gas venting from a well head separator.Emissions from this source are routed to a flare.
Calculations
Emission Calculation Method
EPA Emission Inventory Improvement Program Publication:Volume II,Chapter 10-Displacement Equation(10.4-3)
Ex=Q•MW•Xx IC
Ex=emissions of pollutant x
Q=Volumetric flow rate/volume of gas processed
MW=Molecular weight of gas=SG of gas'MW of air
Xx=mass fraction of x in gas
C=molar volume of ideal gas(379 sof/lb-mob at 60F and 1 atm
Throughput(Q) 90.7 MMsdryr 10353.88128 scf/hr
MW 25.83 lbflb-mol 0.248493151 MMscf/d
mole% MW lbx/Ibmol mass fraction lb/hr ' lb/w tar
Helium 0.0200 4.0028 0.001 0.000 0.02 191.58 0.10
C02 2.3700 44.01 1.043 0.040 28.49 249813.34 124.81
N2 1.3500 28.013 0.378 0.015 10.33 90502.69 45.25
methane 86.2582 16.041 10.628 0.411 290.38 2443543.38 1271.77
ethane 10.9490 30.063 3.292 0.127 89.92 787725.40 393.88
propane 9.9421 44.092 4.384 0.170 119.76 1049073.71 524.54
isobutane 1.1187 58.118 0.650 0.025 17.76 155593.83 77.86
n-butane 4.1943 58.118 2.438 0.094 88.59 583362.12 291.88
isopentane 0.9158 72.114 0.660 0.028 18.04 158047.74 79.02
n-penten 1.2864 72.114 0.928 0.038 25.34 222005.48 111.00
cydopentane 0.0905 70.13 0.063 0.002 1.73 15188.70 7.59
n-Hexane 0.3080 86.18 0.265 0.010 7.25 63422.16 31.76
cydohemne 0.0781 84.18 0.066 0.003 1.80 15729.88 7.86
Other hexanes 0.5550 88.18 0.478 0.019 13.07 114463.84 57.23 heptanes 0.2628 100.21 0.263 0.010 7.19 62975.82 31.49
metwlcydohexane - 0.0560 98.19 0.055 0.002 1.50 13159.01. 6.58
224-IMP_ 0.0001 114.23 0.000 0.000 0.00 27.34 0.01
Benzene 0.0513 78.12 0.040 0.002 1.09 9590.64 4.80
Toluene 0.0315 92.15 0.029 0.001 0.79 8946.63 3.47
Ethylbenzene 0.0032 108.17 0.003 0.000 0.09 813.05 0.41
Xylenes 0.0060 108.17 0.008 0.000 0.17 1524.48 0.76
C8+Heavies 0.1319 137.4837288 0.181 0.007 4.95 43397.45 21.70
VOC mass(ad 0.407 Total VOC(Uncontrolled) 1257.71
Notes
Mole%,MW,and mass fractions from Critter Creek 2-03H gas analysis.
Emissions are based on 8760 hours of operation per year.
I calculated the average MW of C8+based on the average MW on the analysis for the.gas.
Flaring Information
Equipment Description
Flare to combust produced gas until pi line is available at this wellhead facility.
Manufacturer TBD
Model 25'Flare Stack
Serial Number TBD
Gas Heating Value 1453.1 Btu/scf
Throughput 131796.2 MMBtu/yr
VRU Information
Equipment Description
Engine to recompress gas to sales line.
Make
Model
Requested Control 100.00%
Annual Bypass Ti 50.00%
Backup Flare
Overall Control 95.00%
Combustion emission factor source: AP-42:Chapter 13.5
0.07 I lb NOX/MMBtu 0.37 I lb CO/MMBtu
Emissions Summary Table
Pollutant Uncontrolled Emission Factor Controlled Emission Factor Uncontrolled Emissions Controlled Emissions Source
VOC 27733.43 Ib/MMscf 1386.67 lb/MMscf 1257.7 tpy 62.9 tpy Gas Analysis
Nox 0.07 lb/MMBTU 0.07 Ib/MMBTU 4.5 tpy 4.5 tpy AP-42
CO 0.37 lb/MMBTU 0.37 Ib/MMBTU 24.4 tpy 24.4 tpy AP-42
Benzene 105.74 lb/MMscf 5.29 lb/MMscf 9591 lb/yr 480 lb/yr Gas Analysis
n-Hexane 700.35 lb/MMscf 35.02 lb/MMscf 63522 lb/yr 3176 lb/yr Gas Analysis
Toluene 76.59 lb/MMscf 3.83 lb/MMscf 6947 lb/yr 347 lb/yr Gas Analysis
Xylenes 16.81 lb/MMscf 0.84 lb/MMscf 1524 lb/yr 76 lb/yr Gas Analysis
Ethylbenzene 8.96 lb/MMscf 0.45 lb/MMscf 813 lb/yr 41 lb/yr Gas Analysis
Regulatory Applicability
AQCC Regulation 1
This source is subject to the opacity requirements for flares in Section II.A.5:'No owner or operator of a smokeless flare or other
flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in
excess of 30%opacity.'
AQCC Regulation 2
Section I.A applies to all emission sources."No person,wherever located,shall cause or allow the emission of odorous air
contaminants from any single source such as to result in detectable odors which are measured in excess of the following limits:
For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air
has been diluted with seven(7)or more volumes of odor free air."
AIRS(County/Plant) 123/9CA5
Permit No. 14WE0649
Date 8/12/2014
Uncontrolled Emission
Point# SCC Pollutant or CAS Factor
005 31000205 VOC 27733.425 lb/MMscf
005 31000205 NOx 0.068 Ib/MMBTU
005 31000205 CO 0.37Ib/MMBTU
005 31000205 Benzene 105.74 lb/MMscf
005 31000205 n-Hexane 700.355 lb/MMscf
005 31000205 Toluene 76.589 lb/MMscf
005 31000205 Ethylbenzene 8.964 lb/MMscf
005 31000205 Xylenes 16.808 lb/MMscf
Controlled Controlled
Actual Requested NCRP =
Emissions Emissions Ctrl. reportable
Emisison Factor Source (tpy)* (tpy)* PTE(tpy)* Eff% ?
Gas Analysis 62.9 1257.7 95% Yes
FP-42 4.5 4.5 0% Yes
AP-42 24.4 24.4 0% Yes
Gas Analysis 479.5 9590.6 95% Yes
Gas Analysis 3176.1 63522.2 95% Yes
Gas Analysis 347.3 6946.6 95% Yes
Gas Analysis 40.7 813.1 95% Yes
Gas Analysis 76.2 1524.5 95% Yes
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