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Colorado Air Permitting Project
PRELIMINARY ANALYSIS - PROJECT SUMMARYProject DetailsReview Engineer: Carissa MoneyPackage #: 376100Received Date: 3/9/2018Review Start Date: 8/14/2018
Section 01 - Facility InformationCompany Name: Extraction Oil & Gas, Inc. Quadrant Section Township RangeCounty AIRS ID: 123 NENW 36 12N 62Plant AIRS ID: 9E67Facility Name:Physical Address/Location:County: Weld CountyType of Facility:What industry segment?Is this facility located in a NAAQS non-attainment area? NoIf yes, for what pollutant?
Section 02 - Emissions Units In Permit Application
AIRs Point # Emissions Source Type Equipment NameEmissions Control?
Permit # Issuance #Self Cert
Required?Action
Engineering Remarks
007 Separator Venting Sales Gas Venting Yes 18WE0271 1 YesPermit Initial
Issuance
008 Separator Venting LP Gas Venting Yes 18WE0272 1 YesPermit Initial
Issuance
Section 03 - Description of Project
Section 04 - Public Comment RequirementsIs Public Comment Required? YesIf yes, why?
NoIf yes, for what pollutants?If yes, attach a copy of Technical Services Unit modeling results summary.
Section 06 - Facility-Wide Stationary Source ClassificationIs this stationary source a true minor? NoIs this stationary source a synthetic minor? YesIf yes, indicate programs and which pollutants: SO2 NOx CO VOC PM2.5 PM10 TSP HAPs Prevention of Significant Deterioration (PSD) Title V Operating Permits (OP) Non-Attainment New Source Review (NANSR)
Is this stationary source a major source? NoIf yes, explain what programs and which pollutants hereSO2 NOx CO VOC PM2.5 PM10 TSP HAPs Prevention of Significant Deterioration (PSD)
Was a quantitative modeling analysis required?
Silverback 36-A Production Facility
NENW quadrant of Section 36, Township 12N, Range 62W
Exploration & Production Well PadOil & Natural Gas Production & Processing
Requesting Synthetic Minor Permit
Section 05 - Ambient Air Impact Analysis Requirements
The source is requesting to permit equipment at an existing E&P site. The site had an existing well and the source drilled a new well. The source is requesting individual permits for the LP separator venting, and sales gas venting, The source is also requesting individual permits for crude oil tanks, produced water tanks, and condensate loading (package 384364, permits 18WE0744, 18WE0745 and 18WE0746). There are also several eninges at the site covered by GP02.I confirmed this site is located outside (north) of the NAA boundary.
Carbon Monoxide (CO) Particulate Matter (PM) Ozone (NOx & VOC)
Colorado Air Permitting Project
Title V Operating Permits (OP) Non-Attainment New Source Review (NANSR)
Separator Venting Emissions Inventory
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002 Separator Venting123 9E67 007
County Plant Point
Section 02 - Equipment Description Details
Detailed Emissions Unit Description:
Emission Control Device Description:95
Limited Process Parameter
Gas meter
Section 03 - Processing Rate Information for Emissions Estimates
Primary Emissions - SeparatorActual Throughput = 108.5 MMscf per year
Requested Permit Limit Throughput = 125.0 MMscf per year 11 MMscf per month
Potential to Emit (PTE) Throughput = 125 MMscf per year
Process Control (Recycling)Equipped with a VRU: No
Is VRU process equipment:
Secondary Emissions - Combustion Device(s) for Air Pollution Control
Separator Gas Heating Value: 1352 Btu/scf
Section 04 - Emissions Factors & Methodologies
Description
MW 23.993 lb/lb-mol Displacement Equation Ex = Q * MW * Xx / C
Weight %HeliumCO2 5.17N2 1.56methane 46.90ethane 12.76propane 17.43isobutane 2.29n-butane 7.90isopentane 1.76n-pentane 2.07cyclopentane 0.10n-Hexane 0.40cyclohexane 0.05Other hexanes 0.59heptanes 0.75methylcyclohexane 0.09224-TMP 0.00Benzene 0.04Toluene 0.06Ethylbenzene 0.01Xylenes 0.02C8+ Heavies 0.10
Total 100.00VOC Wt % 33.62
Emission FactorsUncontrolled Controlled(lb/MMscf) (lb/MMscf)
(Gas Throughput) (Gas Throughput)VOC 21281.6 1064.1
Benzene 22.790 1.1395Toluene 34.818 1.7409
Ethylbenzene 6.9637 0.3482Xylene 9.4959 0.4748
n-Hexane 251.96 12.598224 TMP 0.0000 0.0000
Uncontrolled Uncontrolled(lb/MMBtu) lb/MMscf(Waste Heat Combusted) (Gas Throughput)
PM10 0.0075 10.074PM2.5 0.0075 10.074
SOx 0.0006 0.795NOx 0.0680 91.939CO 0.3100 419.13 AP-42 Chapter 13.5 Industrial Flares (CO)
Extended gas analysisExtended gas analysisExtended gas analysisExtended gas analysisExtended gas analysis
Emission Factor Source
Source used expected throughput of sales gas and site-specific extended gas sample of sales gas collected 12/20/2016 at Silverback to estimate emissions.
AP-42 Table 1.4-2 (PM10/PM.2.5)AP-42 Table 1.4-2 (PM10/PM.2.5)
AP-42 Table 1.4-2 (SOx)AP-42 Chapter 13.5 Industrial Flares (NOx)
Pollutant
Primary Control Device
Separator Venting
Emission Factor SourcePollutant
Extended gas analysisExtended gas analysis
Yes, meter is currently installed and operational
Requested Monthly Throughput =
Volume of waste gas emitted per BBL of liquids throughput: scf/bbl
Facility AIRs ID:
Venting of sales gas from two high-pressure separators
Open elevated flare
Requested Overall VOC & HAP Control Efficiency %:
Natural Gas Vented
Separator Venting Emissions Inventory
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Section 05 - Emissions Inventory
Potential to Emit Requested Monthly LimitsUncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
PM10 0.63 0.55 0.55 0.6 0.6 107PM2.5 0.63 0.55 0.55 0.6 0.6 107
SOx 0.05 0.04 0.04 0.0 0.05 8NOx 5.75 4.99 4.99 5.7 5.7 976VOC 1330.10 1154.23 57.71 1330.1 66.5 11297CO 26.20 22.73 22.73 26.2 26.2 4450
Potential to EmitUncontrolled Uncontrolled Controlled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (lbs/year) (lbs/year) (lbs/year) tpy tpyBenzene 2849 2472 124 2849 142 1.42 0.07Toluene 4352 3777 189 4352 218 2.18 0.11
Ethylbenzene 870 755 38 870 44 0.44 0.02Xylene 1187 1030 52 1187 59 0.59 0.03
n-Hexane 31495 27330 1367 31495 1575 15.75 0.79224 TMP 0 0 0 0 0 0.00 0.00
Section 06 - Regulatory Summary Analysis
(See regulatory applicability worksheet for detailed analysis)
Section 07 - Initial and Periodic Sampling and Testing Requirements
Using Gas Throughput to Monitor Compliance
Yes
No
Yes
No
You have indicated above that the monitored process parameter is natural gas vented. The following questions do not require an answer.Using Liquid Throughput to Monitor Compliance
NoThis sample 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 Compliance" testing requirement to collect a site-specific liquid sample 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.
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
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
Does the company use site specific emission factors based on a pressurized liquid sample (Sampled upstream of the equipment covered under this AIRs ID) and process simulation to estimate emissions?
Are facility-wide permitted emissions of VOC greater than or equal to 90 tons per year?
Hazardous Air PollutantsActual Emissions Requested Permit Limits
Regulation 3, Parts A, B Source requires a permitRegulation 7, Section XVII.B, G Source is subject to Regulation 7, Section XVII.B.2, GRegulation 7, Section XVII.B.2.e The control device for this separator is subject to Regulation 7, Section XVII.B.2.e
Requested Permit Limits
Does the company use site specific emission factors based on a gas sample to estimate emissions?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.
Criteria PollutantsActual Emissions Requested Permit Limits
Separator Venting Emissions Inventory
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Section 08 - Technical Analysis Notes
Section 09 - Inventory SCC Coding and Emissions Factors
AIRS Point # Process # SCC Code Pollutant
Uncontrolled Emissions
Factor Control % Units007 01 3-10-001-60 Flares PM10 10.07 0 lb/MMSCF
PM2.5 10.07 0 lb/MMSCFSOx 0.80 0 lb/MMSCFNOx 91.94 0 lb/MMSCFVOC 21281.60 95 lb/MMSCFCO 419.13 0 lb/MMSCF
Benzene 22.79 95 lb/MMSCFToluene 34.82 95 lb/MMSCF
Ethylbenzene 6.96 95 lb/MMSCFXylene 9.50 95 lb/MMSCF
n-Hexane 251.96 95 lb/MMSCF224 TMP 0.00 95 lb/MMSCF
Separator Venting Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and B - APEN and Permit RequirementsSource is in the Attainment Area
ATTAINMENT1. 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)? Yes Source Req 2. Are total facility uncontrolled VOC emissions greater than 5 TPY, NOx greater than 10 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.3)? Yes Source Req
Source requires a permitNON-ATTAINMENT1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY (Regulation 3, Part A, Section II.D.1.a)?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 II.D.2)?
You have indicated that source is in the Attainment AreaColorado Regulation 7, Section XVII1. Was the well newly constructed, hydraulically fractured, or recompleted on or after August 1, 2014? Yes Source is su
Source is subject to Regulation 7, Section XVII.B.2, GSection XVII.B.2 – General Provisions for Air Pollution Control Equipment and Prevention of EmissionsSection 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? Yes The control
The control device for this separator is subject to Regulation 7, Section XVII.B.2.eSection 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 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 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.
Separator Venting Emissions Inventory
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001 Separator Venting123 9E67 008
County Plant Point
Section 02 - Equipment Description Details
Detailed Emissions Unit Description:
Emission Control Device Description:95
Limited Process Parameter
Gas meter
Section 03 - Processing Rate Information for Emissions Estimates
Primary Emissions - SeparatorActual Throughput = 2.4 MMscf per year
Requested Permit Limit Throughput = 5.0 MMscf per year 0 MMscf per month
Potential to Emit (PTE) Throughput = 5 MMscf per year
Process Control (Recycling)Equipped with a VRU: No
Is VRU process equipment:
Secondary Emissions - Combustion Device(s) for Air Pollution Control
Separator Gas Heating Value: 2018 Btu/scf
Section 04 - Emissions Factors & Methodologies
Description
MW 36.4543 lb/lb-mol Displacement Equation Ex = Q * MW * Xx / C
Weight %Helium 0.07CO2 4.57N2 0.47methane 16.77ethane 10.97propane 27.52isobutane 4.42n-butane 15.68isopentane 4.06n-pentane 5.32cyclopentane 0.54n-Hexane 1.75cyclohexane 0.44Other hexanes 3.10heptanes 1.91methylcyclohexane 0.49224-TMP 0.001Benzene 0.23Toluene 0.23Ethylbenzene 0.03Xylenes 0.06C8+ Heavies 1.37
Total 100.00VOC Wt % 67.16
Emission FactorsUncontrolled Controlled(lb/MMscf) (lb/MMscf)
(Gas Throughput) (Gas Throughput)VOC 64597.3 3229.9
Benzene 219.69 10.984Toluene 217.67 10.883
Ethylbenzene 33.376 1.6688Xylene 58.096 2.9048
n-Hexane 1684.3 84.215224 TMP 0.6733 0.0337
Uncontrolled Uncontrolled(lb/MMBtu) lb/MMscf(Waste Heat Combusted) (Gas Throughput)
PM10 0.0075 15.038PM2.5 0.0075 15.038
SOx 0.0006 1.187NOx 0.0680 137.24CO 0.3100 625.65
Volume of waste gas emitted per BBL of liquids throughput: scf/bbl
Source used modeled throughput of LP separator gas from Promax and site-specific extended gas sample of LP separator gas collected 2/8/2018 at Silverback 25N-20-3N to estimate emissions.
AP-42 Table 1.4-2 (PM10/PM.2.5)AP-42 Table 1.4-2 (PM10/PM.2.5)
AP-42 Table 1.4-2 (SOx)AP-42 Chapter 13.5 Industrial Flares (NOx)AP-42 Chapter 13.5 Industrial Flares (CO)
Yes, meter is currently installed and operational
Requested Monthly Throughput =
Facility AIRs ID:
Venting of gas from two low-pressure separators
Enclosed flare
Requested Overall VOC & HAP Control Efficiency %:
Natural Gas Vented
Extended gas analysis
Pollutant
Primary Control Device
Separator Venting
Emission Factor SourcePollutant
Extended gas analysisExtended gas analysis
Emission Factor Source
Extended gas analysisExtended gas analysisExtended gas analysisExtended gas analysis
Separator Venting Emissions Inventory
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Section 05 - Emissions Inventory
Potential to Emit Requested Monthly LimitsUncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
PM10 0.04 0.02 0.02 0.0 0.0 6PM2.5 0.04 0.02 0.02 0.0 0.0 6
SOx 0.00 0.00 0.00 0.0 0.00 1NOx 0.34 0.16 0.16 0.3 0.3 58VOC 161.49 77.52 3.88 161.5 8.1 1372CO 1.56 0.75 0.75 1.6 1.6 266
Potential to EmitUncontrolled Uncontrolled Controlled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (lbs/year) (lbs/year) (lbs/year) tpy tpyBenzene 1098 527 26 1098 55 0.55 0.03Toluene 1088 522 26 1088 54 0.54 0.03
Ethylbenzene 167 80 4 167 8 0.08 0.00Xylene 290 139 7 290 15 0.15 0.01
n-Hexane 8422 4042 202 8422 421 4.21 0.21224 TMP 3 2 0 3 0.2 0.00 0.00
Section 06 - Regulatory Summary Analysis
(See regulatory applicability worksheet for detailed analysis)
Section 07 - Initial and Periodic Sampling and Testing Requirements
Using Gas Throughput to Monitor Compliance
Yes
No
Yes
No
You have indicated above that the monitored process parameter is natural gas vented. The following questions do not require an answer.Using Liquid Throughput to Monitor Compliance
No
Are facility-wide permitted emissions of VOC greater than or equal to 90 tons per year?
Hazardous Air PollutantsActual Emissions Requested Permit Limits
Regulation 3, Parts A, B
This sample 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 Compliance" testing requirement to collect a site-specific liquid sample 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.
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
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
Does the company use site specific emission factors based on a pressurized liquid sample (Sampled upstream of the equipment covered under this AIRs ID) and process simulation to estimate emissions?
Criteria PollutantsActual Emissions Requested Permit Limits
Does the company use site specific emission factors based on a gas sample to estimate emissions?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.
Requested Permit Limits
Source requires a permitRegulation 7, Section XVII.B, G Source is subject to Regulation 7, Section XVII.B.2, GRegulation 7, Section XVII.B.2.e The control device for this separator is not subject to Regulation 7, Section XVII.B.2.e
Separator Venting Emissions Inventory
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Section 08 - Technical Analysis Notes
Section 09 - Inventory SCC Coding and Emissions Factors
AIRS Point # Process # SCC Code Pollutant
Uncontrolled Emissions
Factor Control % Units008 01 3-10-001-60 Flares PM10 15.04 0 lb/MMSCF
PM2.5 15.04 0 lb/MMSCFSOx 1.19 0 lb/MMSCFNOx 137.24 0 lb/MMSCFVOC 64597.31 95 lb/MMSCFCO 625.65 0 lb/MMSCF
Benzene 219.69 95 lb/MMSCFToluene 217.67 95 lb/MMSCF
Ethylbenzene 33.38 95 lb/MMSCFXylene 58.10 95 lb/MMSCF
n-Hexane 1684.30 95 lb/MMSCF224 TMP 0.67 95 lb/MMSCF
Separator Venting Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and B - APEN and Permit RequirementsSource is in the Attainment Area
ATTAINMENT1. 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)? Yes Source Req 2. Are total facility uncontrolled VOC emissions greater than 5 TPY, NOx greater than 10 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.3)? Yes Source Req
Source requires a permitNON-ATTAINMENT1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY (Regulation 3, Part A, Section II.D.1.a)?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 II.D.2)?
You have indicated that source is in the Attainment AreaColorado Regulation 7, Section XVII1. Was the well newly constructed, hydraulically fractured, or recompleted on or after August 1, 2014? Yes Source is su
Source is subject to Regulation 7, Section XVII.B.2, GSection XVII.B.2 – General Provisions for Air Pollution Control Equipment and Prevention of EmissionsSection 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 The control
The control device for this separator is not subject to Regulation 7, Section XVII.B.2.eSection 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 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 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 Air Permitting Project
PRELIMINARY ANALYSIS - PROJECT SUMMARYProject DetailsReview Engineer: Carissa MoneyPackage #: 384364Received Date: 6/25/2018Review Start Date: 8/16/2018
Section 01 - Facility InformationCompany Name: Extraction Oil & Gas, Inc. Quadrant Section Township RangeCounty AIRS ID: 123 NENW 36 12N 62Plant AIRS ID: 9E67Facility Name:Physical Address/Location:County: Weld CountyType of Facility:What industry segment?Is this facility located in a NAAQS non-attainment area? NoIf yes, for what pollutant?
Section 02 - Emissions Units In Permit Application
AIRs Point # Emissions Source Type Equipment NameEmissions Control?
Permit # Issuance #Self Cert
Required?Action
Engineering Remarks
001 Liquid Loading Hydrocarbon loading No 18WE0746 1 YesPermit Initial
IssuanceConverting from GP07
002 Crude Oil Tank Crude Oil Storage Tanks Yes 18WE0744 1 YesPermit Initial
IssuanceConverting from GP08
003 Produced Water Tank PW Tanks Yes 18WE0745 1 YesPermit Initial
IssuanceConverting from GP05
Section 03 - Description of Project
Section 04 - Public Comment RequirementsIs Public Comment Required? YesIf yes, why?
NoIf yes, for what pollutants?If yes, attach a copy of Technical Services Unit modeling results summary.
Section 06 - Facility-Wide Stationary Source ClassificationIs this stationary source a true minor? NoIs this stationary source a synthetic minor? YesIf yes, indicate programs and which pollutants: SO2 NOx CO VOC PM2.5 PM10 TSP HAPs Prevention of Significant Deterioration (PSD) Title V Operating Permits (OP) Non-Attainment New Source Review (NANSR)
Is this stationary source a major source? No
Was a quantitative modeling analysis required?
Silverback 36-A Production Facility
NENW quadrant of Section 36, Township 12N, Range 62W
Exploration & Production Well PadOil & Natural Gas Production & Processing
Greater than 50 tons per year in an Attainment Area
Section 05 - Ambient Air Impact Analysis Requirements
The source is requesting to modify three existing points at an existing facility to convert from GP to individual permits. The source needs the individual permit limits instead of GP limits to maintain facility-wide emissions below 90 tpy and thus maintain GP02 coverage.Please note that for Point 002, the source had an individual permit (16WE0337) and then in March 2018, requested GP08 coverage. Prior to an engineer review of the application, the source canceled the GP08 request and requested to maintain an individual permit. Due to these application requests, the tanks received a new permit number instead of simply modifying the old permit.
Carbon Monoxide (CO) Particulate Matter (PM) Ozone (NOx & VOC)
Colorado Air Permitting Project
If yes, explain what programs and which pollutants hereSO2 NOx CO VOC PM2.5 PM10 TSP HAPs Prevention of Significant Deterioration (PSD) Title V Operating Permits (OP) Non-Attainment New Source Review (NANSR)
Hydrocarbon Loadout Emissions Inventory
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001 Liquid Loading123 9E67 001
County Plant Point
Section 02 - Equipment Description Details
Detailed Emissions Unit Description:
Emission Control Device Description:
No
0.00
Primary Emissions - Hydrocarbon Loadout76,432 Barrels (bbl) per year Barrels (bbl) per year
101,353 Barrels (bbl) per year 8608 Barrels (bbl) per month101,353 Barrels (bbl) per year
Secondary Emissions - Combustion Device(s)
Btu/scf
79899 scf/yearActual heat content of waste gas routed to combustion device = 0 MMBTU per yearRequested heat content of waste gas routed to combustion device = 0 MMBTU per year
0 MMBTU per year
Section 04 - Emissions Factors & MethodologiesYesYes The state default emissions factors may be used to estimate emissions.
Loading Loss EquationL = 12.46*S*P*M/T
Factor Meaning Value UnitsS Saturation Factor 0.6P True Vapor Pressure psiaM Molecular Weight of Vapors lb/lb-molT Liquid Temperature RankineL Loading Losses 0 lb/1000 gallons
0 lb/bbl
Component Mass Fraction Emission Factor UnitsBenzene 0 lb/bblToluene 0 lb/bbl
Ethylbenzene 0 lb/bblXylene 0 lb/bbl
n-Hexane 0 lb/bbl224 TMP 0 lb/bbl
Emission FactorsUncontrolled Controlled
(lb/bbl) (lb/bbl)
(Volume Loaded)(Volume Loaded)
VOC 0.1040 0.1040Benzene 0.00018 0.0002Toluene 0.0000
Ethylbenzene 0.0000Xylene 0.0000
n-Hexane 0.0016 0.0016224 TMP 0.0000
Uncontrolled Uncontrolled(lb/MMBtu) (lb/bbl)
(waste heat combusted)(Volume Loaded)
PM10 0.00E+00PM2.5 0.00E+00
SOx 0.00E+00NOx 0.00E+00CO 0.00E+00
Pollutant
Crude Oil Loadout State E.F.Crude Oil Loadout State E.F.Crude Oil Loadout State E.F.
Pollutant
Control Device
Emission Factor Source
Hydrocarbon Loadout
Emission Factor Source
Crude Oil Loadout State E.F.
Crude Oil Loadout State E.F.Crude Oil Loadout State E.F.Crude Oil Loadout State E.F.
Source
Does the hydrocarbon liquid loading operation utilize submerged fill?Are the emissions factors based on a stabilized hydrocarbon liquid sample drawn at the facility being permitted?
Source
Potential to Emit (PTE) Volume Loaded =
Heat content of waste gas =
Control Efficiency:
Actual Volume Loaded = Actual Volume Loaded While Emissions Controls Operating =Requested Permit Limit Throughput = Requested Monthly Throughput =
Volume of waste gas emitted per year =
Potential to Emit (PTE) heat content of waste gas routed to combustion device =
Does the company use the state default emissions factors to estimate emissions?
Requested Overall VOC & HAP Control Efficiency %:
Section 03 - Processing Rate Information for Emissions Estimates
Facility AIRs ID:
Hydrocarbon loadout to tank trucks
None
Is this loadout controlled?Collection Efficiency:
Hydrocarbon Loadout Emissions Inventory
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Section 05 - Emissions Inventory
Potential to Emit Requested Monthly LimitsUncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)PM10 0.00 0.00 0.00 0.00 0.00 0PM2.5 0.00 0.00 0.00 0.00 0.00 0
SOx 0.00 0.00 0.00 0.00 0.00 0NOx 0.00 0.00 0.00 0.00 0.00 0VOC 5.27 3.97 3.97 5.3 5.3 895CO 0.00 0.00 0.00 0.00 0.00 0
Potential to EmitUncontrolled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (lbs/year) (lbs/year) (lbs/year)Benzene 18 14 14 18 18Toluene 0 0 0 0 0
Ethylbenzene 0 0 0 0 0Xylene 0 0 0 0 0
n-Hexane 162 122 122 162 162224 TMP 0 0 0 0 0
Section 06 - Regulatory Summary Analysis
RACT - Regulation 3, Part B, Section III.D.2.a(See regulatory applicability worksheet for detailed analysis)
Section 07 - Initial and Periodic Sampling and Testing RequirementsYou have indicated above the source is not controlled. The following question does not require an answer.
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
Section 09 - Inventory SCC Coding and Emissions Factors
AIRS Point # Process # SCC Code Pollutant
Uncontrolled Emissions
Factor Control % Units001 01 4-06-001-32 Crude Oil: Submerged Loading Normal Service (S=0.6) PM10 0.00 0 lb/1,000 gallons transferred
PM2.5 0.00 0 lb/1,000 gallons transferredSOx 0.00 0 lb/1,000 gallons transferredNOx 0.00 0 lb/1,000 gallons transferredVOC 2.5 0 lb/1,000 gallons transferredCO 0.00 0 lb/1,000 gallons transferred
Benzene 0.00 0 lb/1,000 gallons transferredToluene 0.00 0 lb/1,000 gallons transferred
Ethylbenzene 0.00 0 lb/1,000 gallons transferredXylene 0.00 0 lb/1,000 gallons transferred
n-Hexane 0.04 0 lb/1,000 gallons transferred224 TMP 0.00 0 lb/1,000 gallons transferred
Regulation 3, Parts A, B Source requires a permit
Site is in attainment and not subject to RACT
Does the company request a control device efficiency greater than 95% for a flare or combustion device?
Hazardous Air PollutantsActual Emissions Requested Permit Limits
Criteria PollutantsActual Emissions Requested Permit Limits
Hydrocarbon Loadout Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and B - APEN and Permit RequirementsSource is in the Attainment Area
ATTAINMENT1. 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)? Yes Go to next q2. Is the loadout located at an exploration and production site (e.g., well pad) (Regulation 3, Part B, Section II.D.1.l)? Yes Go to the n
3. Is the loadout operation loading less than 10,000 gallons (238 BBLs) of crude oil per day on an annual average basis? No Go to next q4. Is the loadout operation loading less than 6,750 bbls per year of condensate via splash fill? No Go to next q5. Is the loadout operation loading less than 16,308 bbls per year of condensate via submerged fill procedure? No Go to next q
6. Are total facility uncontrolled VOC emissions greater than 5 TPY, NOx greater than 10 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.3)? Yes The loadou Source requires a permit
NON-ATTAINMENT1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY (Regulation 3, Part A, Section II.D.1.a)?2. Is the loadout located at an exploration and production site (e.g., well pad) (Regulation 3, Part B, Section II.D.1.l)?
3. Is the loadout operation loading less than 10,000 gallons (238 BBLs) of crude oil per day on an annual average basis?4. Is the loadout operation loading less than 6,750 bbls per year of condensate via splash fill?5. Is the loadout operation loading less than 16,308 bbls per year of condensate via submerged fill procedure?
6. 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 II.D.2)?You have indicated that source is in the Attainment Area
7. RACT - Are uncontrolled VOC emissions from the loadout operation greater than 20 tpy (Regulation 3, Part B, Section III.D.2.a)?Site is in attainment and not subject to RACT
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 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.
Crude Oil Storage Tank(s) Emissions Inventory
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002 Crude Oil Tank123 9E67 002
County Plant Point
Section 02 - Equipment Description Details
Detailed Emissions Unit Description:
Emission Control Device Description:
95
Section 03 - Processing Rate Information for Emissions Estimates
Primary Emissions - Storage Tank(s)Actual Throughput = 84,461 Barrels (bbl) per year Actual Crude Oil Throughput While Emissions Controls Operating = 84,461Requested Permit Limit Throughput = 101,353 Barrels (bbl) per year 8608 Barrels (bbl) per month
121,624 Barrels (bbl) per year
Secondary Emissions - Combustion Device(s)
3535 Btu/scf
23 scf/bblActual heat content of waste gas routed to combustion device = 6,867 MMBTU per yearRequested heat content of waste gas routed to combustion device = 8,241 MMBTU per year
9,889 MMBTU per year
Section 04 - Emissions Factors & Methodologies
Yes
Emission FactorsUncontrolled Controlled
(lb/bbl) (lb/bbl)(Crude Oil
Throughput)(Crude Oil
Throughput)VOC 1.6269 0.0813
Benzene 0.0030 0.0001Toluene 0.0021 0.0001
Ethylbenzene 0.0003 0.00001Xylene 0.0005 0.00002
n-Hexane 0.0196 0.0010224 TMP 0.0001 0.00001
Uncontrolled Uncontrolled(lb/MMBtu) (lb/bbl)(waste heat combusted)
(Crude Oil Throughput)
PM10 0.0075 0.0006PM2.5 0.0075 0.0006NOx 0.0680 0.0055CO 0.3100 0.0252
Section 05 - Emissions Inventory
Potential to Emit Requested Monthly LimitsUncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
VOC 98.9 68.7 3.4 82.4 4.1 700PM10 0.0 0.0 0.0 0.0 0.0 5PM2.5 0.0 0.0 0.0 0.0 0.0 5NOx 0.3 0.2 0.2 0.3 0.3 48CO 1.5 1.1 1.1 1.3 1.3 217
Potential to EmitUncontrolled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (lbs/year) (lbs/year) (lbs/year)Benzene 360 250 13 300 15Toluene 254 176 9 211 11
Ethylbenzene 36 25 1 30 2Xylene 57 40 2 48 2
n-Hexane 2383 1655 83 1986 99224 TMP 16 11 1 14 1
Section 06 - Regulatory Summary Analysis
Regulation 7, Section XVII.B, C.1, C.3 Regulation 7, Section XVII.C.2Regulation 6, Part A, NSPS Subpart KbRegulation 6, Part A, NSPS Subpart OOOORegulation 8, Part E, MACT Subpart HH(See regulatory applicability worksheet for detailed analysis)
Potential to Emit (PTE) Throughput =
Facility AIRs ID:
Four 500 bbl fixed roof crude oil storage vessels connected via liquid manifold
Enclosed flare
Requested Overall VOC & HAP Control Efficiency %:
Requested Monthly Throughput =
Site Specific E.F. (includes flash)Site Specific E.F. (includes flash)
Heat content of waste gas =Volume of waste gas emitted per BBL of liquids produced =
Potential to Emit (PTE) heat content of waste gas routed to combustion device =
Will this storage tank emit flash emissions?
Crude Oil Tank
Emission Factor SourcePollutant
Site Specific E.F. (includes flash)Site Specific E.F. (includes flash)Site Specific E.F. (includes flash)Site Specific E.F. (includes flash)Site Specific E.F. (includes flash)
Storage tank is subject to Regulation 7, Section XVII, B, C.1 & C.3
Pollutant
Control Device
Emission Factor Source
AP-42 Table 1.4-2 (PM10/PM.2.5)
AP-42 Chapter 13.5 Industrial Flares (NOx)AP-42 Chapter 13.5 Industrial Flares (CO)
Criteria PollutantsActual Emissions Requested Permit Limits
AP-42 Table 1.4-2 (PM10/PM.2.5)
Hazardous Air PollutantsActual Emissions Requested Permit Limits
Regulation 3, Parts A,B Source requires a permit
Storage tank is subject to Regulation 7, Section XVII.C.2Storage Tank is not subject to NSPS Kb
Storage Tank is not subject to MACT HHStorage Tank is not subject to NSPS OOOO
Crude Oil Storage Tank(s) Emissions Inventory
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Section 07 - Initial and Periodic Sampling and Testing Requirements
No
If yes, the permit will contain an "Initial Compliance" testing requirement to develop a site specific emissions factor based on guidelines in PS Memo 14-03
Yes
YesIf no, the permit will contain an "Initial Compliance" testing requirement to develop a site specific emissions factor based on guidelines in PS Memo 14-03.
NoIf 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
Section 09 - Inventory SCC Coding and Emissions Factors
AIRS Point # Process # SCC Code Pollutant
Uncontrolled Emissions
Factor Control % Units002 01 PM10 0.01 0 lb/1,000 gallons crude oil throughput
PM2.5 0.01 0 lb/1,000 gallons crude oil throughputNOx 0.13 0 lb/1,000 gallons crude oil throughputVOC 38.7 95 lb/1,000 gallons crude oil throughputCO 0.60 0 lb/1,000 gallons crude oil throughput
Benzene 0.07 95 lb/1,000 gallons crude oil throughputToluene 0.05 95 lb/1,000 gallons crude oil throughput
Ethylbenzene 0.01 95 lb/1,000 gallons crude oil throughputXylene 0.01 95 lb/1,000 gallons crude oil throughput
n-Hexane 0.47 95 lb/1,000 gallons crude oil throughput224 TMP 0.00 95 lb/1,000 gallons crude oil throughput
Does the company use the state default emissions factors to estimate emissions? If yes, are the uncontrolled actual or requested emissions estimated to be greater than or equal to 20 tons VOC per year?
Does the company use a site specific emissions factor to estimate emissions?
If yes and if there are flash emissions, are the emissions factors based on a pressurized liquid sample of crude oil drawn at the facility being permitted?
Does the company request a control device efficiency greater than 95% for a flare or combustion device?
The tanks are not subject to NSPS OOOOa because the enforceable control emissions are less than 6 tpy.
These tanks were permitted under 16WE0337. In March 2018, the source requested to cancel the individual permit and be covered under GP08. The division logged in the March 2018 application but prior to the application being reviewed, the source submitted a revised application June 2018 to maintain an individual permit for the tanks. The facility-wide VOC emissions are at 89 tpy; thus, for the source to maintain GP02 coverage, the tanks must be covered by an individual permit limit.Due to the multiple applications, the tanks will get a new permit number instead of simply a modification to the existing permit number.
Crude Oil Storage Tank Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and B - APEN and Permit RequirementsSource is in the Attainment Area
ATTAINMENT1. 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)? Yes Source Req 2. Is the construction date prior to 4/14/2014 and not modified after 4/14/14 (See PS Memo 14-03 for additional guidance on grandfather applicability)? No Go to next q2a. If answer to #2 is yes, is the crude oil throughput less than 40,000 gallons per year? NA3. Are total facility uncontrolled VOC emissions greater than 5 TPY, NOx greater than 10 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.3)? Yes Source Req
Source requires a permitNON-ATTAINMENT1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY (Regulation 3, Part A, Section II.D.1.a)?2. Is the construction date prior to 4/14/2014 and not modified after 4/14/14 (See PS Memo 14-03 for additional guidance on grandfather applicability)? 2a. If answer to #2 is yes, is the crude oil throughput less than 40,000 gallons per year?3. 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 II.D.2)?
You have indicated that source is in the Attainment Area
Colorado Regulation 7, Section XVII1. Is this tank located at a transmission/storage facility? No Continue - Y 2. Is this crude oil storage tank1 located at an oil and gas exploration and production operation , well production facility2, natural gas compressor station3 or natural gas processing plant? Yes Continue - Y 3. Is this crude oil storage tank a fixed roof storage tank? Yes Go to the n 4. Are uncontrolled actual emissions4 of this storage tank equal to or greater than 6 tons per year VOC? Yes Source is su
Storage tank is subject to Regulation 7, Section XVII, B, C.1 & C.3Section XVII.B – General Provisions for Air Pollution Control Equipment and Prevention of EmissionsSection XVII.C.1 - Emissions Control and Monitoring Provisions Section XVII.C.3 - Recordkeeping Requirements
5. Does the crude oil storage tank contain only "stabilized" liquids? If no, the following additional provisions apply. No Source is su Storage tank is subject to Regulation 7, Section XVII.C.2
Section XVII.C.2 - Capture and Monitoring for Storage Tanks fitted with Air Pollution Control Equipment
40 CFR, Part 60, Subpart Kb, Standards of Performance for Volatile Organic Liquid Storage Vessels1. Is the individual storage vessel capacity greater than or equal to 75 cubic meters (m3) [~472 BBLs]? Yes Go to the n 2. Does the storage vessel meet the following exemption in 60.111b(d)(4)? Yes Storage Tan
a. Does the vessel has a design capacity less than or equal to 1,589.874 m3 [~10,000 BBL] used for petroleum1 or condensate stored, processed, or treated prior to custody transfer2 as defined in 60.111b?3. Was this condensate storage tank constructed, reconstructed, or modified (see definitions 40 CFR, 60.2) after July 23, 1984?4. Does the tank meet the definition of “storage vessel”3 in 60.111b? 5. Does the storage vessel store a “volatile organic liquid (VOL)”5 as defined in 60.111b?6. Does the storage vessel meet any one of the following additional exemptions:
a. Is the storage vessel a pressure vessel designed to operate in excess of 204.9 kPa [~29.7 psi] and without emissions to the atmosphere (60.110b(d)(2))?; orb. The design capacity is greater than or equal to 151 m3 [~950 BBL] and stores a liquid with a maximum true vapor pressure6 less than 3.5 kPa (60.110b(b))?; orc. The design capacity is greater than or equal to 75 M3 [~472 BBL] but less than 151 m3 [~950 BBL] and stores a liquid with a maximum true vapor pressure6 less than 15.0 kPa(60.110b(b))?
Storage Tank is not subject to NSPS KbSubpart A, General Provisions §60.112b - Emissions Control Standards for VOC §60.113b - Testing and Procedures§60.115b - Reporting and Recordkeeping Requirements§60.116b - Monitoring of Operations
40 CFR, Part 60, Subpart OOOO, Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution
1. Yes Continue - Y 2. No Storage Tan 3. Are potential VOC emissions2 from the individual storage vessel greater than or equal to 6 tons per year? 4. Does this crude oil storage vessel meet the definition of “storage vessel”1 per 60.5430?
Storage Tank is not subject to NSPS OOOOSubpart A, General Provisions per §60.5425 Table 3§60.5395 - Emissions Control Standards for VOC §60.5413 - Testing and Procedures§60.5395(g) - Notification, Reporting and Recordkeeping Requirements§60.5416(c) - Cover and Closed Vent System Monitoring Requirements§60.5417 - Control Device Monitoring Requirements
40 CFR, Part 63, Subpart MACT HH, Oil and Gas Production Facilities2. Is the storage tank located at an oil and natural gas production facility that meets either of the following criteria: Yes Continue - Y
a. A facility that processes, upgrades or stores hydrocarbon liquids2 (63.760(a)(2)); OR
b. A facility that processes, upgrades or stores natural gas prior to the point at which natural gas enters the natural gas transmission and storage source category or is delivered to a final end user3 (63.760(a)(3))?1. Is the tank located at a facility that is major1 for HAPs? No Storage Tan 3. Does the tank meet the definition of “storage vessel”4 in 63.761?4. Does the tank meet the definition of "storage vessel with the potential for flash emissions"5 per 63.761?5. Is the tank subject to control requirements under 40 CFR Part 60, Subpart Kb or Subpart OOOO?
Storage Tank is not subject to MACT HHSubpart A, General provisions per §63.764 (a) Table 2§63.766 - Emissions Control Standards§63.773 - Monitoring§63.774 - Recordkeeping§63.775 - Reporting
RACT ReviewRACT review is required if Regulation 7 does not apply AND if the tank is in the non-attainment area. If the tank meets both criteria, then review RACT requirements.
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 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.
Is this crude oil storage vessel located at a facility in the onshore oil and natural gas production segment, natural gas processing segment or natural gas transmission and storage segment of the industry? Was this crude oil storage vessel constructed, reconstructed, or modified (see definitions 40 CFR, 60.2) between August 23, 2011 and September 18, 2015?
[Note: If a storage vessel is previously determined to be subject to NSPS OOOO due to emissions above 6 tons per year VOC on the applicability determination date, it should remain subject to NSPS OOOO per 60.5365(e)(2) even if potential VOC emissions drop below 6 tons per year]
Produced Water Storage Tank(s) Emissions Inventory
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003 Produced Water Tank123 9E67 003
County Plant Point
Section 02 - Equipment Description Details
Detailed Emissions Unit Description:
Emission Control Device Description:
95
Section 03 - Processing Rate Information for Emissions Estimates
Primary Emissions - Storage Tank(s)Actual Produced Water Throughput = 228,331 Barrels (bbl) per year Actual Produced Water Throughput While Emissions Controls Operating = 228,331Requested Permit Limit Throughput = 273,997 Barrels (bbl) per year 23271 Barrels (bbl) per month
328,796 Barrels (bbl) per year
Secondary Emissions - Combustion Device(s)
1496 Btu/scf
36 scf/bblActual heat content of waste gas routed to combustion device = 12,297 MMBTU per yearRequested heat content of waste gas routed to combustion device = 14,756 MMBTU per year
17,708 MMBTU per year
Section 04 - Emissions Factors & Methodologies
Yes
Emission FactorsUncontrolled Controlled
(lb/bbl) (lb/bbl)
(Produced Water Throughput)
(Produced Water
Throughput)VOC 0.262 0.013
Benzene 0.0070 0.0004Toluene 0.0000
Ethylbenzene 0.0000Xylene 0.0000
n-Hexane 0.0220 0.0011224 TMP 0.0000
Uncontrolled Uncontrolled(lb/MMBtu) (lb/bbl)
(waste heat combusted)
(Produced Water
Throughput)PM10 0.0075 0.0004PM2.5 0.0075 0.0004
NOx 0.0680 0.0037CO 0.3100 0.0167
Section 05 - Emissions Inventory
Potential to Emit Requested Monthly LimitsUncontrolled Uncontrolled Controlled Uncontrolled Controlled Controlled(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (lbs/month)
VOC 43.1 29.9 1.5 35.9 1.8 305PM10 0.1 0.0 0.0 0.1 0.1 9PM2.5 0.1 0.0 0.0 0.1 0.1 9
NOx 0.6 0.4 0.4 0.5 0.5 85CO 2.7 1.9 1.9 2.3 2.3 389
Potential to EmitUncontrolled Uncontrolled Controlled Uncontrolled Controlled
(lbs/year) (lbs/year) (lbs/year) (lbs/year) (lbs/year)Benzene 2302 1598 80 1918 96Toluene 0 0 0 0 0
Ethylbenzene 0 0 0 0 0Xylene 0 0 0 0 0
n-Hexane 7234 5023 251 6028 301224 TMP 0 0 0 0 0
Section 06 - Regulatory Summary Analysis
Regulation 7, Section XVII.B, C.1, C.3 Regulation 7, Section XVII.C.2Regulation 6, Part A, NSPS Subpart OOOO(See regulatory applicability worksheet for detailed analysis)
Produced Water State E.F. (includes flash) - Front Produced Water State E.F. (includes flash) - Front
Potential to Emit (PTE) Produced Water Throughput =
Facility AIRs ID:
One 500 bbl fixed roof produced water storage vessel
Enclosed flare
Requested Overall VOC & HAP Control Efficiency %:
Requested Monthly Throughput =
Heat content of waste gas =Volume of waste gas emitted per BBL of liquids produced =
Potential to Emit (PTE) heat content of waste gas routed to combustion device =
Will this storage tank emit flash emissions?
Produced Water Tank
Emission Factor SourcePollutant
Produced Water State E.F. (includes flash) - Front Produced Water State E.F. (includes flash) - Front Produced Water State E.F. (includes flash) - Front
Hazardous Air PollutantsActual Emissions Requested Permit Limits
Produced Water State E.F. (includes flash) - Front
Pollutant
Control Device
Emission Factor Source
Produced Water State E.F. (includes flash) - Front
AP-42 Table 1.4-2 (PM10/PM.2.5)AP-42 Table 1.4-2 (PM10/PM.2.5)AP-42 Chapter 13.5 Industrial Flares (NOx)AP-42 Chapter 13.5 Industrial Flares (CO)
Criteria PollutantsActual Emissions Requested Permit Limits
Regulation 3, Parts A, B Source requires a permitStorage tank is subject to Regulation 7, Section XVII, B, C.1 & C.3Storage tank is subject to Regulation 7, Section XVII.C.2Storage Tank is not subject to NSPS OOOO
Produced Water Storage Tank(s) Emissions Inventory
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Section 07 - Initial and Periodic Sampling and Testing Requirements
No
If no, the permit will contain an "Initial Compliance" testing requirement to develop a site specific emissions factor. See PS Memo 14-03, Questions 5.9 and 5.12 for additional guidance on testing.
NoIf 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
Section 09 - Inventory SCC Coding and Emissions Factors
AIRS Point # Process # SCC Code Pollutant
Uncontrolled Emissions
Factor Control % Units003 01 PM10 0.01 0 lb/1,000 gallons liquid throughput
PM2.5 0.01 0 lb/1,000 gallons liquid throughputNOx 0.09 0 lb/1,000 gallons liquid throughputVOC 6.2 95 lb/1,000 gallons liquid throughputCO 0.40 0 lb/1,000 gallons liquid throughput
Benzene 0.17 95 lb/1,000 gallons liquid throughputToluene 0.00 95 lb/1,000 gallons liquid throughput
Ethylbenzene 0.00 95 lb/1,000 gallons liquid throughputXylene 0.00 95 lb/1,000 gallons liquid throughput
n-Hexane 0.52 95 lb/1,000 gallons liquid throughput224 TMP 0.00 95 lb/1,000 gallons liquid throughput
If yes and if there are flash emissions, are the emissions factors based on a pressurized liquid water sample drawn at the facility being permitted and analyzed using flash liberation analysis? This sample should be considered representative which generally means site-specific and 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.
Does the company request a control device efficiency greater than 95% for a flare or combustion device?
4-04-003-15 Fixed Roof Tank, Produced Water, working+breathing+flashing losses
Does the company use a site specific emissions factor to estimate emissions?
The tanks are not subject to NSPS OOOOa because the enforceable control emissions are less than 6 tpy.
Produced Water Storage Tank Regulatory Analysis Worksheet
Colorado Regulation 3 Parts A and B - APEN and Permit RequirementsSource is in the Attainment Area
ATTAINMENT1. 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)? Yes Source Req 2. Is the operator claiming less than 1% crude oil and is the tank located at a non-commercial facility for processing oil and gas wastewater? (Regulation 3, Part B, Section II.D.1.M) No Go to next q3. Are total facility uncontrolled VOC emissions greater than 5 TPY, NOx greater than 10 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.3)? Yes Source Req
Source requires a permitNON-ATTAINMENT1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY (Regulation 3, Part A, Section II.D.1.a)?2. Is the operator claiming less than 1% crude oil and is the tank located at a non-commercial facility for processing oil and gas wastewater? (Regulation 3, Part B, Section II.D.1.M)3. Are total facility uncontrolled VOC emissions greater than 2 TPY, NOx greater than 5 TPY or CO emissions greater than 10 TPY (Regulation 3, Part B, Section II.D.2)?
You have indicated that source is in the Attainment Area
Colorado Regulation 7, Section XVII1. Is this tank located at a transmission/storage facility? No Continue - Y 2. Is this produced water storage tank1 located at an oil and gas exploration and production operation , well production facility2, natural gas compressor station3 or natural gas processing plant? Yes Continue - Y 3. Is this produced water storage tank a fixed roof storage tank? Yes Go to the n 4. Are uncontrolled actual emissions4 of this storage tank equal to or greater than 6 tons per year VOC? Yes Source is su
Storage tank is subject to Regulation 7, Section XVII, B, C.1 & C.3Section XVII.B – General Provisions for Air Pollution Control Equipment and Prevention of EmissionsSection XVII.C.1 - Emissions Control and Monitoring Provisions Section XVII.C.3 - Recordkeeping Requirements
5. Does the produced water storage tank contain only "stabilized" liquids? If no, the following additional provisions apply. No Source is su Storage tank is subject to Regulation 7, Section XVII.C.2
Section XVII.C.2 - Capture and Monitoring for Storage Tanks fitted with Air Pollution Control Equipment
40 CFR, Part 60, Subpart OOOO, Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution
1. Yes Continue - Y 2. No Storage Tan 3. Are potential VOC emissions2 from the individual storage vessel greater than or equal to 6 tons per year? 4. Does this produced water storage vessel meet the definition of “storage vessel”1 per 60.5430?
Storage Tank is not subject to NSPS OOOOSubpart A, General Provisions per §60.5425 Table 3§60.5395 - Emissions Control Standards for VOC §60.5413 - Testing and Procedures§60.5395(g) - Notification, Reporting and Recordkeeping Requirements§60.5416(c) - Cover and Closed Vent System Monitoring Requirements§60.5417 - Control Device Monitoring Requirements
RACT ReviewRACT review is required if Regulation 7 does not apply AND if the tank is in the non-attainment area. If the tank meets both criteria, then review RACT requirements.
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 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.
Please note that NSPS Kb might be might be applicable for certain tanks at water management and injection facilities. If the tanks you are reviewing are at one of these facilities, please review NSPS Kb.
Is this produced water storage vessel located at a facility in the onshore oil and natural gas production segment, natural gas processing segment or natural gas transmission and storage segment of the industry? Was this produced water storage vessel constructed, reconstructed, or modified (see definitions 40 CFR, 60.2) between August 23, 2011 and September 18, 2015?
[Note: If a storage vessel is previously determined to be subject to NSPS OOOO due to emissions above 6 tons per year VOC on the applicability determination date, it should remain subject to NSPS OOOO per 60.5365(e)(2) even if potential VOC emissions drop below 6 tons per year]