HomeMy WebLinkAbout20140790.tiff STATE OF COLORADO
John W.Hickenlooper,Governor
Larry Wolk,MD,MSPH .oV•cootto�
Executive Director and Chief Medical Officer FS' \'(o
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Dedicated to protecting and improving the health and environment of the people of Colorado . .:) *
4300 Cherry Creek Dr.S. Laboratory Services Division �ratex
Denver,Colorado 80246-1530 8100 Lowry Blvd.
Phone(303)692-2000 Denver,Colorado 80230-6928 Colorado Department
Located in Glendale,Colorado (303)692-3090 of Public Health
www.colorado.gov/cdphe and Environment
Weld County - Clerk to the Board
1150 O Street
PO Box 758
Greeley, CO 80632
March 6, 2014
Dear Sir or Madam:
On March 9, 2014,the Air Pollution Control Division will publish a public notice for Carrizo Oil &Gas, Inc.
—Nelson 17-44 & 1-20-9-60, 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 1
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Attention: Clara Gonzales
Regards,
r; RECEIVED
MAR 13 2014
Clara Gonzales WELD COUNTY
Public Notice Coordinator COMMISSIONERS
Stationary Sources Program
Air Pollution Control Division
Enclosure
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3 . 19 aoi-/ 3 . 13 ' 1A4 2014-0790
STATE OF COLORADO
John W.Hickenlooper,Governor
Larry Wolk,MD,MSPH pe.Coto
Executive Director and Chief Medical Officer A.,: �90
Dedicated to protecting and improving the health and environment of the people of Colorado „4.1 ��_o� `a*
4300 Cherry Creek Dr. S. Laboratory Services Division
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Denver,Colorado 80246-1530 8100 Lowry Blvd.
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Phone(303)692-2000 Denver,Colorado 80230-6928 Colorado Department
Located in Glendale,Colorado (303)692-3090 of Public Health
www.colorado.gov/cdphe and Environment
Website Title: Carrizo Oil &Gas, Inc. —Nelson 17-44 & 1-20-9-60—Weld County
Released To: The Greeley Tribune
On: March 6, 2014
Published: March 9, 2014
PUBLIC NOTICE OF A PROPOSED PROJECT
OR ACTIVITY WARRANTING PUBLIC COMMENT
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 &Gas, Inc.
Facility: Nelson 17-44 & 1-20-9-60
Crude oil production site with associated natural gas
SESE, Section 17, T9N, R60W(10.1 miles southeast of Grover, Colorado 80729)
Weld County
The proposed project or activity is as follows: The applicant is requesting to permit a well site separator and flare
stack with limits of 21.8 MMscf separator vapors/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):
• 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 13 WE2299 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 www.colorado.gov/cdphe/AirPublicNotices
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-B I
Denver, Colorado 80246-1530
cdphe.commentsapcd@state.co.us
STATE OF COLORADO
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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
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AIR POLLUTION CONTROL DIVISION '';',/;1O4O0“- ,�
TELEPHONE: (303)692-3150
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CONSTRUCTION PERMIT
PERMIT NO: 1 3WE2299
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 facility, known as the Nelson 17-44 & 1-20-9-60, located in SESE of Section 17,
Township 9N, Range 60W, in Weld County, Colorado.
THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING:
Facility AIRS
Equipment Point Description
ID
Separator controlled by a 25' flare stack. Flare has a
SEPARATOR 004 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, II.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
AIRS ID: 123-9520-004 Page 1 of 7
Wellhead Version 2012-1
Colorado Department of Public Health and Environment
Air Pollution Control Division
application associated with this permit; (ii)discontinues construction fora 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 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. The following information for all permitted equipment except fugitive emissions from
equipment leaks 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.)
6. 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
7. 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: Ok to this point, waiting on op response to new throughputs
Facility AIRS Tons per Year
Equipment ID Point NOx Emission Type
VOC CO
SEPARATOR 004 1.6 26.3 8.9 Point
See"Notes to Permit Holder#4"for information on emission factors and methods used to calculate
limits.
Facility-wide emissions of each individual hazardous air pollutant shall be less than 8.0 tpy.
Facility-wide emissions of total hazardous air pollutants shall be less than 20.0 tpy.
Compliance with the annual limits shall be determined 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
P
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.
8. 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.)
AIRS ID: 123-9520-004 Page 2 of 7
Colorado Department of Public Health and Environment
Air Pollution Control Division
Facility AIRS Control Device Pollutants
Equipment ID Point Controlled
SEPARATOR 004 Separator controlled by a 25' flare stack VOC, HAPs
PROCESS LIMITATIONS AND RECORDS
9. This source shall be limited to the following maximum processing rates as listed below.
Monthly records of the throughput shall be maintained by the applicant and made available
to the Division for inspection upon request. (Reference: Regulation 3, Part B, II.A.4)
Process/Consumption Limits
Facility AIRS Process Parameter Annual Limit
Equipment ID Point
SEPARATOR 004 Natural gas flaring 31.1 MMscf/yr
The owner or operator shall calculate monthly process rates based on the calendar month.
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.
STATE AND FEDERAL REGULATORY REQUIREMENTS
10. The permit number and AIRS ID number shall be marked on the subject equipment for ease
of identification. (Reference: Regulation Number 3, Part B, III.E.) (State only enforceable)
11. 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. (Reference: Regulation No. 1, Section II.A.1. & 4.)
12. 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 for a period or periods aggregating more than six minutes in any
sixty consecutive minutes. (Reference: Regulation No. 1, Section II.A.5.)
13. These sources are subject to the odor requirements of Regulation No. 2. (State only
enforceable)
OPERATING 8, MAINTENANCE REQUIREMENTS
14. Upon startup of this point, the applicant shall follow the 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.)
AIRS ID: 123-9520-004 Page 3 of 7
Colorado Department of Public Health and Environment
Air Pollution Control Division
COMPLIANCE TESTING AND SAMPLING
Initial Testing Requirements
15. The owner or operator shall demonstrate compliance with Condition 11 using EPA Method 9
to measure opacity from the flare. (Reference: Regulation No. 1, Section II.A.5).
Periodic Testing Requirements
16. 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
17. A revised Air Pollutant Emission Notice (APEN)shall be filed:(Reference: Regulation No.3,
Part A, II.C)
a. Annually 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 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
d. Whenever a permit limitation must be modified; or
e. No later than 30 days before the existing APEN expires.
18. 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
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 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.
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
AIRS ID: 123-9520-004 Page 4 of 7
Colorado Department of Public Health and Environment
Air Pollution Control Division
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.
21. This permit is issued in reliance upon the accuracy and completeness of information
supplied by the applicant 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 applicant or applicant'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 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 applicant, or the Division revokes a permit,the applicant
or 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:
Kirk Bear
Permit Engineer
Permit History
Issuance Date Description
Issuance 1 This Issuance Issued to Carrizo Oil and Gas, Inc.
AIRS ID: 123-9520-004 Page 5 of 7
Colorado Department of Public Health and Environment
Air Pollution Control Division
Notes to Permit Holder:
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 permittee 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 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 permittee 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.cdphe.state.co.u s/req u lotions/ai rregs/100102agcccommon provision sreq.pdf.
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.
AIRS Pollutant CAS# BIN Uncontrolled Reportable? Controlled
Point
benzene 71432 A 3580 yes 179
004 n-hexane 110543 C 22480 yes 1124
toluene 108883 C 2840 yes 142
5) The emission levels contained in this permit are based on the following emission factors:
Emission Emission
CAS# Pollutant Factors Factors Source
Uncontrolled Controlled
VOC lb/MMBtu lb/MMBtu
mass balance
CO 0.37 0.37 AP-42
Ib/MMBtu lb/MMBtu
.068 .068
NOx lb/MMBtu lb/MMBtu
AP-42
71432 benzene 115.0 5.8 mass balance
lb/MMscf lb/MMscf
110543 n-hexane 723.6 36.2 mass balance
lb/MMscf lb/MMscf
108883 toulene 91.4 4.6 mass balance
lb/MMscf lb/MMscf
Note: The uncontrolled VOC and HAP emissions for this point were calculated using the 9 August
2012 analysis of a gas sample collected from the Nelson 17 well pad. The controlled VOC
and HAP emissions factors for point 004 are based on the flare control efficiency of 95%.
AIRS ID: 123-9520-004
Page 6 of 7
Colorado Department of Public Health and Environment
Air Pollution Control Division
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 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 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:
http:i!ec fr.gpoaccess.2ovl
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 ZZZZ—Subpart MMMMM
MACT 63.8980-End Subpart NNNNN—Subpart XXXXXX
9) An Oil and Gas Industry Construction Permit Self-Certification Form is included with this permit packet.
Please use this form to complete the self-certification requirements as specified in the permit conditions.
Further guidance on self-certification can be found on our website at:
http://www.cdphe.state.co.usiap/oilgaspermitting.html
AIRS ID: 123-9520-004 Page 7 of 7
Construction Permit Application
Preliminary Analysis Summary
Section 1 —Applicant Information
Company Name: Carrizo Gas and Oil, Inc.
Permit Number: 13WE2299
Source Location: SESE,Section 17,T9N, R60W
AIRS ID: 123-9520-004
Date: 16 October 2013
Review Engineer: Kirk Bear
Control Engineer: Christopher Laplante
Section 2—Action Completed
X Initial Approval Modification APEN Required/Permit Exempt
CP1 Transfer of Ownership APEN Exempt/Permit Exempt
Section 3—Applicant Completeness Review
Was the correct APEN submitted for this source type? Yes X No
Is the APEN signed with an original signature? X Yes No
Was the APEN filled out completely? X Yes No
Did the applicant submit all required paperwork? X Yes No
Did the applicant provide ample information to determine emission rates? X Yes No
If you answered"no"to any of the above, when did you mail an 15 October 2013
Information Request letter to the source?
On what date was this application complete? 8 April 2013
Section 4—Source Description
AIRS Point Equipment Description
004 Separator with 25'flare stack
Is this a portable source? Yes X No
Is this location in a non-attainment area for any criteria Yes X No
pollutant?
If"yes", for what pollutant? PM,() CO Ozone
Is this location in an attainment maintenance area for Yes X No
any criteria pollutant?
If"yes", for what pollutant?
(Note: These pollutants are subject to minor source PM1p CO Ozone
RACT per Regulation 3, Part B, Section III.D.2)
Is this source located in the 8-hour ozone non-
attainment region? (Note: If"yes"the provisions of Yes X No
Regulation 7, Sections XII and XVII.C may apply)
Page 1
Section 5—Emission Estimate Information
AIRS Point Emission Factor Source
Separator I AP-42 and mass balance
Did the applicant provide actual process data for the emission inventory? X Yes No
Basis for Potential to Emit(PTE)
AIRS Point Process Consumption/Throughput/Production
Separator 31.1 MM scf separator vapors/year
Basis for Actual Emissions Reported During this APEN Filing (Reported to Inventory)
AIRS Point Process Consumption/Throughput/Production Data Year
Separator 31.1 MM scf separator vapors/year 2012
Basis for Permitted Emissions(Permit Limits)
AIRS Point Process Consumption/Throughput/Production
Separator 31.1 MM scf separator vapors/year
Does this point use a control device? X i Yes No
AIRS Point Process Control Device Description % Reduction Granted
Separator 1 Flare with a 25'stack 95
Section 6—Emission Summar/ (tons per year)
Point NO,, VOC CO SOx PM10 Single Total
HAP HAP
PTE: 004 1.6 526.6 8.9 --- --- 11.2 12.4
Controlled point 004 1.6 26.3 8.9 --- --- .6 0.7
source emission rate:
TOTAL PERMITTED 004 1.6 26.3 8.9 --- --- .6 0.7
(TPY)
Section 7—Non-Criteria/Hazardous Air Pollutants
Uncontrolled Are the Controlled Emission
Pollutant CAS# BIN Emission Rate emissions Ib! r
(Ib/yr) reportable? Rate( Y)
Separator-Point 005
benzene 71432 A 3,580 yes 179
n-hexane 110543 C 22,480 yes 1,124
toulene 108883 C 2,840 yes 142
Note: Regulation 3, Part A, Section il.B.3.b APEN emission reporting requirements for non-criteria air
pollutants are based on potential emissions without credit for reductions achieved by control
devices used by the operator.
Section 8—Testing Requirements
Will testing be required to show compliance with any emission rate or regulatory ' X Yes No
standard?
If"yes", complete the information listed below
AIRS Point Process Pollutant Regulatory Basis Test Method
004 1 VOC, State only requirement Site specific gas
HAPs analysis
Page 2
Section 9—Source Classification
Is this a new previously un-permitted source? 004
YES X
NO
What is this point classification?
True Minor
Synthetic Minor X
Major
What is this facility classification? True X Synthetic Major
Minor Minor
Classification relates to what programs? X Title V X PSD NA NSR X MACT
Is this a modification to an existing permit? Yes X No
If"yes"what kind of modification? Minor Synthetic Major
Minor
Section 10—Public Comment
Does this permit require public comment per CAQCC Regulation 3? X Yes No
If"yes",for which pollutants?Why? VOC
For Reg. 3, Part B, III.C.1.a (emissions increase> 25/50 tpy)? Yes No
For Reg. 3, Part B, III.C.1.c.iii (subject to MACT)? Yes No
For Reg. 3, Part B, III.C.1.d (synthetic minor emission limits)? X Yes No
Section 11 —Modeling
Is modeling required to demonstrate compliance with National Ambient Yes X No
Air Quality Standards (NAAQS)?
If"yes", for which pollutants?Why?
AIRS Point Section 12—Regulatory Review
Regulation 1 Particulate, Smoke, Carbon Monoxide and Sulfur Dioxide
Section II.A.1 - Except as provided in paragraphs 2 through 6 below, no owner or
operator of a source shall allow or cause the emission into the atmosphere of any air
pollutant which is in excess of 20% opacity. This standard is based on 24 consecutive
opacity readings taken at 15-second intervals for six minutes. The approved reference test
method for visible emissions measurement is EPA Method 9 (40 CFR, Part 60, Appendix
004 A (July, 1992)) in all subsections of Section II. A and B of this regulation.
Section II.A.5 - Smokeless Flare or Flares for the Combustion of Waste Gases 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 for a period or periods aggregating more than six minutes in any sixty
consecutive minutes.
Regulation 2—Odor
Section I.A- 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
004 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.
Page 3
Regulation 3-APENs, Construction Permits, Operating Permits, PSD
Part A-APEN Requirements
Criteria Pollutants: For criteria pollutants, Air Pollutant Emission Notices are required for:
each individual emission point in an attainment area with uncontrolled actual emissions of
004 two tons per year or more of any individual criteria pollutant (pollutants are not summed)
for which the area is in attainment.
(Applicant is required to file an APEN since emissions exceed two tons per year
VOC)
Part B--Construction Permit Exemptions
004 Applicant is required to obtain a permit since uncontrolled VOC emissions from this
facility are greater than the 5.0 TPY threshold (Reg. 3, Part B, Section II.D.3.a)
Regulation 6-New Source Performance Standards
004 None
Regulation 7—Volatile Organic Compounds
XII VOLATILE ORGANIC COMPOUND EMISSIONS FROM OIL AND GAS
OPERATIONS
This point is not located in the 8-hr ozone control area; therefore, this point is not
004 subject to Section XII of this regulation.
XVII STATEWIDE CONTROLS FOR OIL AND GAS OPERATIONS
This facility is an oil and gas operation that operates equipment subject to Section
XVII of this regulation.
Regulation 8--Hazardous Air Pollutants _
004 l None
Section 13—Aerometric Information Retrieval System Coding Information
Point Process Process Description Emission Pollutant/ Fugitive Emission Factor Control
Factor CAS# (Y/N) Source (%)
21.9 VOC l No Mass Balance 95
Ib/MMBtu 0.068 AP-42,
Ib/MMBtu NOx No Table 13.5-1 NA
0.37 I AP-42,
01 Separator Ib/MMBtu CO No Table 13.5-1 NA
004 115.0 benzene No Mass Balance 95
Ib/MMscf
723.6 n-hexane . No Mass Balance 95
ib/MMscf
91.4 toulene No Mass Balance 95
Ib/MMscf
SCC 31000205-Flares
Page 4
Section 14—Miscellaneous Application Notes
AIRS Point 004 Separator
Operator provided an extended gas analysis and emissions were calculated using EPA Emission
Inventory Improvement Program Publication, Volume II, Chapter 10-Displacement equation (10.4-3)
where:
Ex= Q * MW*Xx/C
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 scf/lb-mol) at 60F and 1
atmosphere
Emissions generated from the separator are:
Uncontrolled tpy Controlled tpy
NOx 1.2 1.2
CO 6.3 6.3
VOC 369.9 18.5
benzene 2,509 lb 125 lb
n-hexane 15,795 lb 790 lb
toulene 1,994 lb 100 lb
An extended gas analysis was provided in the application dated 8/9/2012. The gas analysis was
performed less than a year from submittal. An updated extended gas analysis will not be required
because an extended gas analysis was performed within a year of this submittal and included with this
package.
Page 5
Produced Natural Gas Venting/Flaring Preliminary Analysis Colorado Department of Public Health and Environment
Air Pollution Control Division
Division Information
Engineer Kirk Bear I Attainment Status
Control Engineer: Christopher Laptante PM10 Attainment
Review Dale: 10115/2013 PM2 5 Attainment
Application Date: 4/8/2013 SOx Attainment
NOx Attainment
VOC Attainment
Facility Information CO Attainment
Permit No. 13WE2299
County# 123 Weld Potentially Located within EAC-determine attainment status of NOx
AIRS Facility# 9520
Point# 004
Facility Equipment I6' 1-Sep
Company Name: Carrizo Oil&Gas,Inc
Source Name: Nelson 17-44&1-20-9-60
Source Location SESE.Section 17,TON,R6OW
SIC:211111
Elevation(feet)50D7
New Permit Modification APEN
X (CPt) (Issuance#) Required/Permit
Fxmmnl
Transfer of APEN
Ownership Exempt/Pennd
Fxemol
Notes
Equipment Description
This source vents natural gas from: a well head separator
Emissions from this source are: routed to an open-flame flare
Natural gas venting from a well head separator.Emissions from this source are routed to an open-
flame flare.
Emission Calculation Method
EPA Emission Inventory Improvement Program Publication:Volume II,Chapter 10-Displacement Equation(10.4-3)
Ex=0•MW•Xx/C
Ex=emissions of pollutant x
0=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 scf/tb-mol)at 60F and 1 atm
I Throughput(0) 31.1 MVscf/yr I 3550 2 sc`Mr I 2.64 MMscf/mo
MW 27.940 Ib/lb-mat 000' MMscf/d
mole% MW lbx/Ibmol mass fraction E lb/hr lb/yr tpy
Helium 0.01 4.0026 0 000 0.000 Helium 0.0 33 0.02
CO2 2.84 44.01 1.250 0.045 CO2 11.7 102563 51.28
N2 1.94 28.013 0543 0.019 N2 5.1 44595 22.30
methane 581734 16,041 9.332 0.334 methane 87.4 765732 382.87
ethane 131836' 30.063 3.963 0.142 ethane 37.1 325228 162.61
propane 131736 44.092 5.8086 0.208 propane 54.4 478634' 238.32
isobutane 14371 58.118 0.8352 0.030 isobutane 7.8 68536 34.27
n-butane 51491 58.118 2.9929 0.107 n-butane - 28.0 245592 122.90
isopentane 10508 72.114 0.7578 0.027 isopentane 7.1 62181 31.09
',pentane 13e/5 72.114 1.0006 0036 n-pentane 9.4 82106 41.05
cyclopentane 0.1252 70.13 0.0878 0.003 cyclopentane _ 0.8 7203 3.60
n-Hexane 03182 86.18 0.2742 0010 n-Hexane 2.6 22502 11.25
cyclohexane 00793 84.16 0.0667 0.002 cyclohexane 0.6 5476 2.74
Other hexanes 0 5694 88.18 0.4907 0.018 Other hexanes 4.6 40287 20.13
heptanes 0.2662 100.21 02668 0.010 heptanes 2.5 21890 1094
melhylcydohexane 00573 98.19 0.0563 0.002 methylcyclohexane 0.5 4817 2.31
224-TMP 00002 114.23 0.0002 0.000 224-IMP 0.0 19 0.01
Benzene 00491 7812 0.0384 0.001 Benzene 0.4 3147 1.57-
Toluene 00288 92.15 0.0285 0.001 Toluene 0.2 2178 1.09
Ethylbenzene 00034 106.17 0.0036 0.000 Ethylbenzene 0.0 296 0.15
Xylenes 0.0045 106.17 0.0048 0.000 Xylenes 0.0 392 0.20
C8+Heavies 01154 12:5'5 0.1403 0.005 C8+Heavies 1.3 - 11513 5.76
VOC mass fraction. 0.4600 Total VOC Emissions(Uncontrolled) 527.3
27.940 annual limit assuming 95%control 26.4
antes monthly knit assuming 95%control(lb/mo.) 4478.2
Produced Natural Gas Venting/Flaring Preliminary Analysis Colorado Department of Public Health and Environment
• Air Pollution Control Division
Flaring Information
Equipment Description
Manufacturer TBD
Model TBD
Serial Number TBD
Gas Heating Value 1550 Btu/scf
Throughput 48205 MMBtulyr
Combustion emission factor source: AP-42 Chapter 13 5
0 068 lb NOX/MMBtu I 0 37 lb CO/MMBIu
1.64 tpv NQX 8.92 tpy CO I
Emissions Summary
1.64_ toy NOX
Uncontrolled/PTE 8.92 toy CO
527.276 toy VOC
Controlled 26.364 toy VOC
•
Uncontrolled Scenario A Controlled
Total(Ib/yr) Bin Reportable? Total(Ib/yr)
Benzene 3147 A Yes 157
Toluene 2178 C Yes 109
Ethylbenzene 296 C No 15
Xylenes 392 C No 20
n-hexane 22502 C Yes 1125
• 224-TMP 19 C
Regulatory Applicability
AQCC Regulation 1
This source is subject to the opacity requirements for flares h Section II.A 5-'No owner or operator of
• a smokeless flare or other flare for he 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 LA 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"
AQCC Regulation 2
An APEN a required for this source because uncontrolled VOC emissions
Part A. exceed two tons per year in an attainment area
A permit is required for this source because uncontrolled VOC emissions from
this facility exceed five tons per year in an attainment area
Pert B: This source is not subject to Section III D 2(Minor Source RACT)because it is
not located in a nonattatnmenl area
Is public comment Public Comment Required
required?
Facility Status
This facility is a synthetic minor source of VOC,HAP for Title V applicability
This facility is a synthetic minor source of VOC.HAP for PSD applicability
Emission Factors for Permit
jncontrolled
NOX 105 lb/MMscf natural gas vented
CO 574 ,lb/MMscf natural gas vented
VOC 33908 lb/MMscf natural gas vented
Benzene 101 lb/MMsd natural gas vented •
Toluene 70 lb/MMscf natural gas vented
Elhylbenzene 10 Ib/MMscf natural gas vented
Xylenes 13 Ib/MMscf natural gas vented
n-Hexane 724 lb/MMscf natural gas vented
224-TMP 1 Ib/MMscf natural gas vented
•
Controlled
NOX 105 lb/MMscf natural gas vented
CO 574 lb/MMscf natural gas vented
V I' T scf natural gas vented
enzene s na ural gas vented
o uene s na ural gas vented
nzene s na urat gas vented
ones (lfi 's na ural gas vented
n- exane s na ural gas vented
s na ural gas vented
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