DAQ-2024-004198

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2023 Utah Air Agencies Oil & Gas
Emissions Inventory Workbook
Instructions

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Table of Contents
Introduction ..................................................................................................................................... 2
Saving and Submitting the Workbook ............................................................................................. 4
Entering Data in Workbook ............................................................................................................. 4
Included Worksheets ....................................................................................................................... 5
Operator Information ................................................................................................................. 5
Facilities List ................................................................................................................................ 5
Associated API #s ........................................................................................................................ 6
ProdAreaDesignation&Analyses ................................................................................................. 7
Production Area Designations and Analyses Summary ........................................................... 7
Production Area Analyses – How to Report Analyses ............................................................. 7
Component Counts by Area Designation ................................................................................ 8
Drill_Compl._Recompl._Workover ............................................................................................. 9
Associated Gas Flaring .............................................................................................................. 10
RICE (Reciprocating Internal Combustion Engines) & Turbines ................................................ 11
Separators & Heaters ................................................................................................................ 13
Dehydrators .............................................................................................................................. 14
Tanks ......................................................................................................................................... 16
Truck Loading ............................................................................................................................ 19
Pneumatic Controllers .............................................................................................................. 21
Pneumatic Pumps ..................................................................................................................... 21
Fugitives .................................................................................................................................... 22
Produced Water and Injection .................................................................................................. 23
Centrifuges ................................................................................................................................ 24
Solid Waste Disposal ................................................................................................................. 25
Company Summary ................................................................................................................... 25

Introduction
This Microsoft Excel workbook is designed to help the user estimate emissions at oil & gas
facilities with Standard Industrial Classification codes in the major group 13 that have uncontrolled
actual emissions greater than one ton per year for any single pollutant including: PM10, PM2.5, NOx,
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SOx, CO, or VOC. These sources include, but are not limited to, industries involved in oil and
natural gas exploration, production, and transmission (boosting stations (i.e. transmission
compression stations) and line heaters) operations; well production facilities; natural gas
compressor stations; and natural gas processing plants and commercial oil and gas disposal wells,
ponds and sites. The period being estimated for is calendar year 2023 (Jan. 1 – Dec. 31, 2023).
The step-by-step instructions below will aid the user in filling out this customized workbook. It
will help to have a copy of the workbook open while reading these instructions to increase
understanding.
To begin, open the Excel workbook. Tabs identifying worksheets that are linked and interactive
will be displayed across the bottom of the workbook. All but two of these worksheets are
modifiable and require inputs from the user for the workbook to correctly calculate the
emissions inventory. When inserting new data (in some cases by typing over the top of existing
data), the new data will automatically be distributed to the proper cells and worksheets;
thereby, reducing inventory time and the chance for errors. Fields shaded in grey should not be
modified by the user unless the instructions for that field explicitly state to do so. Fields that are
shaded in pink are optional, and are not required to be provided by the user. Worksheets in this
workbook include “Operator Info”, “Facilities List”, “Associated API #s”,
“ProdAreaDesignation&Analyses”, “Drill_Compl._Recompl._Workover”, “Associated Gas
Flaring”, “RICE&Turbines”, “Separators&Heaters”, “Dehydrators”, “Tanks”, “Truck Loading”,
“Pneumatic Controllers”, “Pneumatic Pumps”, “Fugitives”, “Produced Water and Injection”,
“Centrifuges”, and “Solid Waste Disposal”. The workbook also contains a “Company Summary”
worksheet that does not need to be modified.
For any questions or concerns about completing the O&G Emissions Inventory Workbook
please contact UDAQ: Ryan Grant [phone], [e-mail]

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Saving and Submitting the Workbook
The workbook can be downloaded and uploaded through the Permit By Rule (PBR) registration
page at https://daqpermitting.utah.gov/PBRRegistration.
In addition to the workbook, various supporting documents must be submitted as well, this
includes:
• Manufacturer specification sheet or copy of stack test results for Rice/Turbines if not
using default emission factors
• Manufacturer specification sheet for combustors
• Representative GLYCalc or ProMax report(s) for dehydrators
• Produced Natural Gas Analysis, Flash Gas Analysis, and Standing/Working/Breathing Gas
Analysis for each production area noted (other than “Default”) on the
“ProdAreaDesignation&Analyses” tab
o Upload PDF copies of laboratory reports, AP-42 and Vasquez-Beggs calculations,
and/or process simulation model reports for each Production Area (unless using
the Default).
• Pressurized liquid sample analyses used as input to tank emission estimating models.
Assistance:
If you have any questions or problems while using this system, please contact Ryan
Grant [phone], [e-mail].
Entering Data in Workbook
Most fields are modifiable and can be filled in by the operator; however, any fields that are
static parameters and should not be adjusted are shaded grey. The workbook also includes
several drop-down lists which must be selected by the user, and once selected will appear in a
blue font. When entering data into the worksheets, be sure to enter the values in exactly the
same units that are listed. Units are not modifiable since the calculations in the workbook
depend on continuity of units. The current units are standard for calculating emissions at oil &
gas operations.
Each worksheet is defaulted with 2000 rows to report equipment or activity. Note: If your
company has more than 2000 pieces of any one equipment type or activity, or more than 2000
facilities, contact UDAQ for further instruction.
Note: Please do NOT include Title V point source permitted facilities in your submission. This
workbook is limited to area source emissions. Title V point source emissions are reported in
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the State Emissions Inventory Program (SLEIS). Only include facilities that aren’t reported in
SLEIS to avoid double counts.
Included Worksheets

Operator Information
This tab is for providing basic operator information such as name and address as well as at least
one person of contact, and their relevant information, for the operator.
1. Operator Name – Provide the name of the operator.
2. Operator Address – Provide the address for the operator, including: Street Address, City,
State, and Zip code.
3. Contact Name – Provide the name of the main contact for the operator.
4. Contact Title – Provide the contact title for the operator’s main contact.
5. Daytime Phone Number – Provide the phone number for the operator’s main contact.
6. Email – Provide the email address for the operator’s main contact.
7. Alternate Contact Name – Optionally provide an alternate contact for the operator.
8. Alternate Contact Title – Optionally provide the contact title for the operator’s alternate
contact.
9. Alternate Phone Number – Optionally provide the phone number for the operator’s
alternate contact.
10. Alternate Email -- Optionally provide the email address for the operator’s alternate
contact.

Facilities List
This tab is for providing a list of all active upstream, midstream and transmission (boosting
stations (i.e. transmission compression stations) and line heaters) sources owned/operated by the
operator completing the workbook. Facilities with a Title V Operating permit in effect, do not
need to be listed. Each line in this tab represents a separate facility.
1. Facility Name – Provide the full name of the facility.
2. Site ID – This is the site ID of the facility on your PBR registration.
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3. Facility Type and Annual Throughputs – Using the dropdown menu, select the
appropriate facility description. Note: If the production facility is a coalbed methane
well, please note that in the comments section. If “Other”, please include a description
in the comments section. Add production of oil/condensate/gas/water or throughput of
produced water/solid waste as applicable:
Production Facility – enter the annual production totals in the appropriate field in the
specified units.
Midstream Facility – including compressor stations, centralized tank batteries, etc. No
throughput reporting is necessary.
Produced Water Disposal Facility – enter the annual produced water received in the
specified units.
Water Injection Facility – enter the annual produced water received in the specified
units.
Solid Waste Facilities – enter the annual solid waste received in the specified units.
Other – e.g. boosting stations (i.e. transmission compression stations) and line heaters
4. Primary Product Type – Choose from the following, oil, gas, CBM, or other. For oil wells
or any facility processing oil, the primary product type would be oil.
5. Duplicate ID – This provides a history of any ID the facility may have previously been
under.
6. Latitude – Provide the latitude of the facility in decimal degrees (e.g. DD.ddddd).
7. Longitude – Provide the longitude of the facility in decimal degrees (e.g. DD.ddddd).
8. Production Area Designation – The user should select appropriate production area
designation for each facility using the drop-down menu. Note: Select “Default” UNLESS
you will be providing composition analyses for the given production area designations
in the “ProductionAreaDesignation&Analyses” tab.
9. Is there one or more APIs associated with this source? – Enter Yes or No
10. Engines: All Electric Powered? (Y/N) – Enter Yes only if all engines on the facility are
electric.
11. Comments – Provide any additional comments relating to the facility, if needed.

Associated API #s
This tab is for providing a list of any API #s associated with each facility listed in the facilities tab.
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1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Associated API #X – Provide each individual 10-digit API number (without dashes)
associated with the noted facility. Note: If any facility is associated with more than 100
API numbers, contact UDAQ for further instruction.
ProdAreaDesignation&Analyses
This tab should be used to report a production gas analysis, flash gas analysis, and
standing/working/breathing gas analysis for each reported facility. Additionally, the tab should
be used to report component counts for each area designation.
Production Area Designations and Analyses Summary
This table is a summary table which auto-populates based on the information provided by the
user in the “Production Area Analyses” tables and the “Component Counts by Area Designation”
tables. This table is also used by other tabs within the workbook. This table should not be
modified by the user.
Production Area Analyses – How to Report Analyses
Each facility reported on the “Facilities List” tab must have an associated set of analyses. For
each facility, users may either provide a unique set of analyses, provide a representative set of
analyses (may be utilized for more than one facility), or use the default set of analyses already
provided in the workbook. Regardless of the method used, the set of analyses used for each
individual facility should be noted in the “Facilities List” tab by noting the “Production Area
Designation” name assigned to the specific set of analyses (e.g. “Default” or “1”, “2”,”3”, etc.)
using the dropdown for the “Production Area Designation” field.
Space is provided for submission of up to 10 different sets of analyses (identified by the
production area designations of “1-10”). If a user needs to submit more than 10 sets of analyses
they should contact UDAQ for further instruction.
Note: If unique or representative analyses are provided, supporting documents must be
submitted as well.
Each set of analyses should include: “Produced Natural Gas Composition”, “Flash Gas Analysis”,
and “Standing Working Breathing Gas Analysis”. For each analysis the user should provide the
following information:
1. Gas MW –The gas molecular weight of the gas collected for sample in pound per
pound mole (lb/lb-mole). This field requires no manual input, the field will be auto
calculated from the data provided in the Mole Fraction fields. The populated data
should not be modified by the user.
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2. VOC Wt. % – The volatile organic compound (VOC) weight percent of the gas
collected for sample. This field requires no manual input, the field will be auto
calculated from the data provided in the Mole Fraction fields. The populated data
should not be modified by the user.
3. Heat Content (BTU/scf) – Provide the heat content of the gas collected for sample in
British thermal units per standard cubic feet (BTU/scf).
4. GOR – Provide the gas oil ratio for the analysis.
5. # of Samples Taken – Provide the number of samples used to develop the noted
representative sample.
6. Mole Fraction – Provide the mole fraction obtained from the production gas analysis
completed for the sample of interest including: CO2, N2, C1, C2, C3, C4, C5, C6, C7,
C8, C9, C10, Benzene, Toluene, Ethylbenzene, Xylene, and N-Hexane.
Note: For compressor stations and CBM well facilities, if applying the custom component
count recommendation (see below), be certain to fill out the corresponding custom
Production Area gas analysis section (if no custom gas analysis is available, copy/paste values
from the “Default” gas analysis section).

Component Counts by Area Designation
These tables should be used to provide the average component counts for each unique
production area designation utilized by the user. Default counts have already been provided for
the “Default” production area designation. The user should complete the component counts
table for any production area designation they provided analyses for in the “Production Area
Analyses” tables.
These tables use the provided component counts along with EPA based fugitive equipment leak
emission factors to determine “Emissions lb/hr” and “Total Emissions lb/hr” (these fields should
not be modified by the user).
Note: For compressor stations, if no custom component count is available and provided
default values will be used, it is recommended to copy default component count values for
Gas, Light Oil, and Water/Oil only into one of the custom Production Area Designation
component counts sections and used in conjunction the associated custom Production Area
gas analyses. This avoids inflating fugitive emission calculations due to Heavy Oil
contributions.
For CBM well facilities, if no custom component count is available and provided default values
will be used, it is recommended to copy default component count values for Gas and
Water/Oil only into one of the custom Production Area Designation component counts
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sections and used in conjunction the associated custom Production Area gas analyses. This
avoids inflating fugitive emission calculations due to Light Oil and Heavy Oil contributions.

Drill_Compl._Recompl._Workover
This tab is for estimating emissions at the well site during the drilling, completion, recompletion,
and workover processes. Emission factors assume the following: 7.5 lb of diesel per gallon,
diesel heating value of 19,300 btu/lb (AP 42 3.3-1), and average brake-specific fuel consumption
of 7,000 btu/hp-hr.
Note: Drill Rig/Well Completion/Recompletion/Workover engines should be reported here
rather than the RICE&Turbines tab.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Affected API # – Provide the API number of the specific well that is being drilled,
completed, recompleted or serviced/workover.
3. Well Type – Using the dropdown menu, select the well type for the well that is being
completed.
4. Activity Type – Using the dropdown menu, select the activity type for the operation.
5. Total Gas and Liquids Flared or Vented During Drilling, Completion Provide the annual
product flared or vented under the appropriate subcategory in the appropriate units
(mmcf or bbl) specified by subcategory.
6. Annual Diesel Fuel Usage – Provide the annual diesel fuel usage for the well that was
drilled or completed in gallons.
7. Drill Rig/Completion Engine/Workover Engine Control - Control Type – This field
contains a drop-down list of control types that can be selected by the user.
8. Drill Rig/Completion Engine/Workover Engine Control - NOx (%) – This field is
prepopulated to 0% control. If the user selected a control in the previous field the
percent NOx control should be noted in this field.
9. Gas Flaring Control - Flare Efficiency – This field contains a drop-down list of flare
efficiencies that can be selected by the user.
10. Gas Flaring Control - Percent Control (%) – This field notes the percent control used for
controlling gas flaring. This field is auto-populated based on the selection made in the
previous field. This field should not be modified by the user.
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11. Release Point – Provide the relevant release point data in the appropriate units specified
for each subcategory.
12. Emission Factors – These fields contain emission used to calculate the emissions from
drilling, well completions, and workovers. These fields should not be modified by the
user.
13. Emissions – These fields contain the formulas that calculate the PM10, PM2.5, NOx, VOC,
and CO (tons/yr) emissions associated with each well completion and should not be
modified by the user.
Associated Gas Flaring
This tab is for estimating emissions for associated gas flaring at oil wells. Emission factors
assume the following, 7.5 lb of diesel per gallon, diesel heating value of 19,300 btu/lb (AP-42 3.3-
1), average brake-specific fuel consumption of 7,000 btu/hp-hr.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Affected API #s – Provide the API number of the specific well that has associated gas
flaring or venting.
3. Well Type – Select the well type from the dropdown.
4. Total Production Gas and Liquids Flared or Vented - Gas Flared – Provide amount of gas
flared in mmcf.
5. Gas Flaring Control- Flare Efficiency – Select from the dropdown the control type/flare
efficiency.
6. Gas Flaring Control- Percent Control – This field should not be touched. It will be auto
populated based on the selection made in the previous field.
7. Gas Flaring Release Point -
8. Gas Flaring Release Point - Stack/Fugitive – Select from the dropdown either stack or
fugitive.
9. Gas Flaring Release Point - Height – Input the height of the release point in feet.
10. Gas Flaring Release Point - Diameter – Input the diameter of the release point in inches.
11. Gas Flaring Release Point - Exit Temp – Input the release point exit temperature in
Fahrenheit.
12. Gas Flaring Release Point – Exit Velocity – Input the exit velocity in feet per second.
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13. Venting and Flaring Emission Factors (From Wyoming Completions Worksheet) – These
fields contain factors that were derived from Wyoming’s completions worksheet.
14. Emissions – These fields contain the formulas that calculate the NOx, VOC, and CO in
tons per year.

RICE (Reciprocating Internal Combustion Engines) & Turbines
Natural Gas and Diesel using AP 42 Emission Factors
This tab is for estimating emissions from reciprocating engines and turbines using emission
factors from AP 42 3.1, 3.2, 3.3, and 3.4, NSPS JJJJ, manufacturer specifications, stack tests, or
Utah default emission factors.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Make – Provide the make of the RICE/Turbine for which you are reporting.
3. Model – Provide the model of the RICE/Turbine for which you are reporting.
4. Manufacture Year – Provide the manufacture year (yyyy) of the RICE/Turbine you are
reporting.
5. Engine Type – This field contains a drop-down menu of RICE/Turbine function types;
select the one that best fits the RICE/Turbine for which you are reporting.
6. Site Rated Horsepower – Provide the site rated horsepower (hp) of the RICE/Turbine
you are reporting.
7. Total Annual Hours of Operation – Provide the annual operating hours (hrs) of the
RICE/Turbine you are reporting.
8. Engine Category – This field contains a drop-down list of engine and turbine category
types that can be selected.
9. Total Fuel Combusted – Provide the total amount of fuel combusted for the category
type can be entered. It is important to note that this number must be entered in the
same units that are displayed in the “Units” field.
10. Fuel Type- The options are wet gas (unprocessed gas), dry gas (processed gas), or other
for engines that run on fuels that aren’t considered natural gas.
11. Units – This field automatically populates according to the category type selected from
the drop-down listed in the Engines / Compressors / Turbines field. This field should not
be modified by the user.
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12. Fuel Heating Value – Provide the heating value of the fuel used for the category type
entered. It is important to note that this number must be entered in the same units that
are displayed in the “Heating Value Units” field.
13. Heating Value Units - This field automatically populates according to the category type
selected from the drop-down listed in the Turbines/Compressors/Engines field. This
field should not be modified by the user.
14. Heat Throughput – This is a field that calculates the total heat throughput of the fuel in
mmbtu/yr (million British thermal units per year) by using the entries from “Total Fuel”
and “Fuel Heating”. This field should not be modified by the user.
15. Control Type – This field contains a drop-down list of two selections, Controlled, and
Uncontrolled. Select the control status that best fits the RICE/Turbine you are reporting.
16. NOx (%) – This field is formatted as a percentage and should be used to report the
percent control for NOX. An example would be a category that only has a NOX control of
50%. The user would enter 50 in the NOX (%).
17. Release Point – These are modifiable fields where users can use the pre-entered
defaults or can provide specific information about the release point (stack or fugitive)
related to each piece of reported equipment or activity. If no stack exists please change
the selection in the Stack/Fugitive column to “Fugitive”.
18. Emission Factors: EF Type – This field contains a drop-down list with four emissions
factor type choices: AP_42, NSPS_JJJJ, Manufacturer_Spec., Utah Default, and
Stack_Test (some EF Types only available for certain pollutants). For each emissions
category (PM10 Primary, PM10 Filterable, PM2.5 Filterable, PM Condensable, SOx, NOx,
VOC, CO, CH2O) select the type that best fits the RICE/Turbine you are reporting.
19. Emission Factors: Category – This field contains a drop-down list with several choices,
the choices will be narrowed depending on the selection made in the prior field “EF
Type”. For each emissions category (PM10 Primary, PM10 Filterable, PM2.5 Filterable, PM
Condensable, SOx, NOx, VOC, CO, CH2O) select the category that best fits the
RICE/Turbine you are reporting. Note: If Manufacturer_Spec., or Stack_Test is reported
the “Category” should be left blank. Please upload manufacturer specification sheet or
stack test report as documentation in CAERS.
20. Emission Factors: Factor and Units - The values in these fields will automatically
populate with emission factors if the type selected in the “EF Type” field was AP 42 or
NSPS JJJJ. Otherwise the field should be completed by the operator by providing an
emission factor based on manufacturer specifications or stack tests. The fields should
be completed for each emissions source category (PM10, PM2.5, SOx, NOx, VOC, CO,
CH2O). Note: Use caution when providing emission factors based on manufacturer
specifications or stack tests. The user should be certain of the emission factor they
enter; manually entered values will override and erase the underlying equations using
default factors.
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21. Emissions – This field contains the formulas that calculate the annual emissions for
PM10, PM2.5, SOx, NOx, VOC, CO, and CH2O (tons/yr) and should only be modified by the
user where manufacturer specification or stack test-based emission factors were used.
Note: Use caution when hand entering emissions based on manufacturer specifications
or stack tests. The user should be certain of the emissions they enter; manually
entered values will override and erase the underlying equations used with default
emission factors.

Separators & Heaters
This tab is for estimating emissions from separators, line heaters, heater-treaters, tank heaters,
and reboilers using emission factors from AP 42 1.4.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Heater Type -- This field contains a drop-down list with several choices (tank heater,
heater treater, reboiler, line heater, and separator) select the heater type that best fits
the heater or separator you are reporting.
3. Fuel Type – This field should not be modified by the user since the fuel type is always
going to be natural gas.
4. Heat Duty Rating – Provide the heat duty rating in MMbtu/hr (million British thermal
units per hour) for the heater or separator you are reporting.
5. Total Annual Hours of Operation – Provide the total annual hours of operation for the
heater or separator you are reporting.
6. Production Area Designation – This field is automatically populated according to the
“Facility Unique ID #” provided in column A and should not be modified by the user. This
field “Production Area Designation” is used by column G to determine “Heat Value”,
according to either default or user provided information from the
“ProdAreaDesignation&Analyses” tab.
7. Heat Value – This field “Heat Value” is populated according to either default or user
provided information from the “ProdAreaDesignation&Analyses” tab. This field should
not be modified by the user.
8. Total Fuel Combusted – This field should not be modified. The field uses the entries
from heat duty rating and hours of operation to calculate the total amount of fuel
combusted in mmcf/yr (million cubic feet per year) for the heater/separator reported
9. Control Status – This field contains a drop-down list of two selections, Controlled - Low
NOX Burners, and Uncontrolled. Select the control status that best fits the
heater/separator you are reporting.
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10. Percent Control (%) – This field automatically populates according to the control type
selected from the drop-down listed in the Control Status field. This field should not be
modified by the user.
11. Release Point – These are modifiable fields where users can use the pre-entered
defaults or can provide specific information about the release point (stack or fugitive)
related to each piece of reported equipment or activity. If no stack exists please change
the selection in the Stack/Fugitive column to “Fugitive”.
12. Emission Factors - The values in these fields automatically populate with emission
factors from AP 42 1.4 according to the status type selected in Control Status field. This
field should not be modified by the user.
13. Emissions – These fields contains the formulas that calculates the annual emissions for
PM10, PM2.5, SOx, NOx, VOC, and CO (tons/yr) and should not be modified by the user.

Dehydrators
Still Column Reboiler Vent Line
This tab is for estimating emissions from reboiler vent lines using information from the GRI-
GLYCalc or ProMax program. Submission of supporting documentation (representative GLYCalc
or ProMax report) is required to demonstrate the accuracy and completeness of the calculation.
A single GLYCalc or ProMax report can be submitted as a representative report for several
facilities, if similar operating parameters are used at those facilities.
Note: The emissions from the reboiler of the glycol dehydrator skid are accounted for in the
“Separators&Heaters” worksheet tab.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.

2. Gas Processed – Provide the annual amount of gas processed by the reported
dehydrator in mcf (thousand cubic feet).
3. Unit Rating – Provide the unit rating for the reported dehydrator in MMscfd (million
standard cubic feet per day).
4. Total Annual Hours of Operation – Provide the total annual hours of operation for the
reported unit.
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5. Dehydrator Type – This field contains a drop-down list of five dehydrator types: TEG,
DEG, EG, Mol Sieve, and Desiccant (it is defaulted to TEG). Select the type that best fits
the reported unit.
6. Glycol Circulation Rate –Provide the glycol circulation rate used by the reported unit in
gal/min (gallons per minute).
7. Production Area Designation – This field is automatically populated according to the
“Facility Unique ID #” provided in column A and the associated “Production Area
Designation” assigned in the “Facilities List” tab, and should not be modified by the user.
8. Control Type – This field contains a drop-down list of possible selections, Combustor,
VRU, and No Control. Select the control status that best fits the unit you are reporting.
9. Percent Control – This field is formatted as a percentage and is where the percent
control, provided by the “Control Type”, can be entered. This field will be automatically
populated as 0% if “No Control” is selected as the “Control Type”.
10. Release Point – These are modifiable fields where users can use the pre-entered
defaults or can provide specific information about the release point (stack for the
regenerator/still vent or fugitive) related to each piece of reported equipment or
activity. If no stack exists please change the selection in the Stack/Fugitive column to
“Fugitive”.
11. Combustor: Fuel Combusted – This field notes the type of fuel being combusted. This
field should not be modified by the user.
Note: the workbook will use cond/oil tank flash gas composition as a surrogate for glycol
dehydrator regenerator/still vent emissions.
12. Combustor: Heat Input Rate – This field calculates the heat input rate for the reported
unit in mmbtu/hr (million British thermal units per hour). This field should not be
modified by the user. This field is automatically calculated using the inputs from
“Volume of Gas” and “Heat Value of Flash”.
13. Combustor: Volume of Gas – Provide the volume of flash gas in scf/yr (standard cubic
feet per year) used by the reported unit
14. Combustor: Heat Value of Flash Gas – This field notes the heat value of the flash gas in
btu/scf (British thermal unit per standard cubic foot) for the reported unit. This field is
automatically populated according to the “Facility Unique ID #” provided in column A
and its associated “Production Area Designation” (noted in column G) assigned in the
“Facilities List” tab, and this field should not be modified by the user.
15. Combustor Pilot: Fuel Combusted – This field notes the type of fuel being combusted.
This field should not be modified by the user.
16. Combustor Pilot: Heat Input Rate – This field notes the heat input rate for the reported
unit in mmbtu/hr (million British thermal units per hour). This field should not be
modified.
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17. Combustor Pilot: Volume of Gas – Provide the volume of gas in scf/yr (standard cubic
feet per year) sent to the combustor pilot of the reported unit.
18. Combustor Emission Factors – The values in these fields are based on AP 42 emission
factors and should not be modified by the user.
19. Total Combustor Emissions – Emissions – These fields contain formulas that calculate
the annual PM, VOC, NOx, and CO emissions (tons/yr). Combustor emissions are
adjusted by the heat value of flash gas (compared to the AP 42 default of 1020 btu/cf)
to account for field gas heat value while the combustor pilot emissions are left
unadjusted (assumed to be 1020 btu/cf). This field should not be modified by the user.
20. Emission Factor – This is a modifiable field where the VOC emission factor for the
reported dehydrator unit should be entered in lbs/hr. This information should be
obtained by running the GRI-GLYCalc or ProMax program. This should include emissions
from the regenerator/still vent and the flash tank (if present and whose emissions are
not used on-site as fuel). This factor should account for any control noted in the percent
control (%) field.
21. Emissions – This field contains the formula that calculates the annual VOC emissions
(tons/yr) and should not be modified by the user.

Tanks
This tab is for estimating emissions from tanks using either a generally accepted tanks specific
program such as Oklahoma’s AP-42 Calculator (standing/working/breathing emissions only)
alongside the Vasquez-Beggs Equation (flashing emissions only), or a process simulation model
employing an equation of state, such as ProMax or VMGSim, to account for total emissions
including working, breathing, and flashing losses. (Note that E&P Tanks and TANKS 4.09D are no
longer supported.)
Note: Produced water facilities that skim oil or condensate product from ponds, and send the
collected product to a tank should report the product sent to tanks here. Recovered Oil, and
condensate, and received produced water (minus the skimmed oil volume) should be reported
in the “Throughput” columns accordingly.
Produced water tank emissions for facilities which also use ponds are accounted for via the
"Produced Water and Injection" tab. No water tank emissions for these facilities are
calculated on this tab. Produced water tank emissions for facilities which do not use ponds are
accounted for on this tab. Recovered oil tank emissions are accounted for both facility types
on this tab.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
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Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Facility Type – Using the dropdown menu, select the appropriate facility description.
3. Oil Tanks – Provide the total number of oil tanks located at the specific facility.
4. Tank Temp – Provide the average oil tank temperature in °F (degrees Fahrenheit).
5. Separator Pressure – Provide the pressure of the separator upstream of the oil tank in
PSIG (pounds per square inch gage).
6. Condensate Tanks – Provide the total number of condensate tanks located at the
specific facility.
7. Tank Temp – Provide the average condensate tank temperature in °F (degrees
Fahrenheit).
8. Separator Pressure – Provide the pressure of the separator upstream of the condensate
tank in PSIG (pounds per square inch gage).
9. Water Tanks – Provide the total number of water tanks located at the specific facility.
10. Production Area Designation – This field is automatically populated according to the
“Facility Unique ID #” provided in column A and the associated “Production Area
Designation” assigned in the “Facilities List” tab, and should not be modified by the user.
11. Throughput – Provide the tanks throughput of produced oil, produced condensate and
produced water for production facilities, or recovered oil, recovered condensate, and
received water (minus recovered oil volume) for disposal and injection facilities in bbl/yr
(barrels per year) accordingly.
12. Control Type– This field contains a drop-down list of three selections, Combustor, VRU,
and No Control. Select the control status that best fits the unit you are reporting.
13. Percent Control– This field is formatted as a percentage and is where the percent
control, provided by the “Control Type”, can be entered. This field is set to 0% as a
default.
14. Percent Oil Recovery (Disposal and Injection Facilities Only) – This field is formatted as a
percentage. The percent oil recovered is calculated automatically using the oil recovered
throughput and the water received throughput reported by the user. This field should
not be modified by the user.
15. Release Point – These are modifiable fields where users can use the pre-entered
defaults or can provide specific information about the release point (stack or fugitive)
related to each piece of reported equipment or activity. If no stack exists please change
the selection in the Stack/Fugitive column to “Fugitive”.
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16. Combustor: Fuel Combusted – This field notes the type of fuel being combusted. This
field should not be modified by the user.
17. Combustor: Heat Input Rate – This field calculates the heat input rate for the reported
unit in mmbtu/hr (million British thermal units per hour). This field is automatically
calculated using the inputs from “Volume of Gas” and “Heat Value of Flash”. This field
should not be modified.
18. Combustor: Volume of Gas – Provide the volume of flash gas in scf/yr (standard cubic
feet per year) used by the reported unit.
Note: scf of associated gas and casing head well gas should be included in the total
scf/yr routed to the combustor.
19. Combustor: Heat Value of Flash – This field notes the heat value of the flash gas in
btu/scf (British thermal unit per standard cubic foot) for the reported unit. This field is
automatically populated according to the “Facility Name” provided in column A and its
associated “Production Area Designation” (noted in column I) assigned in the “Facilities
List” tab, and should not be modified by the user.
20. Combustor Pilot: Fuel Combusted – This field notes the type of fuel being combusted.
This field should not be modified by the user.
21. Combustor Pilot: Heat Input Rate – This field notes the heat input rate for the reported
unit in mmbtu/hr (million British thermal units per hour). This field should not be
modified.
22. Combustor Pilot: Volume of Gas – Provide the volume of gas in scf/yr (standard cubic
feet per year) sent to the combustor pilot of the reported unit.
23. Combustor Emission Factors – The values in these fields are based on AP 42 emission
factors and should not be modified by the user.
24. Total Combustor Emissions – Emissions – These fields contain formulas that calculate
the annual PM, VOC, NOx, and CO emissions (tons/yr). Combustor emissions are
adjusted by the heat value of flash gas (compared to the AP 42 default of 1020 btu/cf)
to account for field gas heat value while the combustor pilot emissions are left
unadjusted (assumed to be 1020 btu/cf). This field should not be modified by the user.
25. For the emission factor calculations, two methods are available: Either SWB and flash
emissions may be calculated OR, alternatively, combined flash/SWB emissions may be
calculated. Report SWB and flash gas emissions separately (columns AK – AP) or
combined (columns AQ – AS), but not both.
26. SWB Emission Factors: Emissions Calculation Method – Provide the method/methods
used to calculate tank emissions (standing/working/breathing).
27. SWB Emission Factors: SWB Condensate EF – Provide the emission factor in lb/bbl
(pound per barrel) used to calculate standing/working/breathing emissions from
condensate tanks at the site of interest.
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28. SWB Emission Factors: SWB Oil EF – Provide the emission factor in lb/bbl (pound per
barrel) used to calculate standing/working/breathing emissions from oil tanks at the site
of interest.
29. Flash Emission Factors: Emissions Calculation Method – Emissions Calculation Method –
Provide the method/methods used to calculate tank flash emissions.
30. Flash Emission Factors: Condensate EF – Provide the emission factor in lb/bbl (pound
per barrel) used to calculate flash emissions from condensate tanks at the site of
interest.
31. Flash Emission Factors: Oil EF – Provide the emission factor in lb/bbl (pound per barrel)
used to calculate flash emissions from oil tanks at the site of interest.
32. Combined SWB/Flash Emission Factors: Emissions Calculation Method – Emissions
Calculation Method – Provide the method/methods used to calculate tank emissions
(combined flash & standing/working/breathing).
33. Combined SWB/Flash Emission Factors: Condensate EF – Provide the emission factor in
lb/bbl (pound per barrel) used to calculate the combined flash &
standing/working/breathing emissions from condensate tanks at the site of interest.
34. Combined SWB/Flash Emission Factors: Oil EF – Condensate EF – Provide the emission
factor in lb/bbl (pound per barrel) used to calculate the combined flash &
standing/working/breathing emissions from oil tanks at the site of interest.
35. Water Tank Emissions (Production, Midstream and Injection Facilities Only) – This field
notes the total VOC emissions (tons/yr) estimated for water tanks at the site of interest.
Emissions are calculated using an emission factor derived via a TANKS 4.0.9d run by
DAQ's Permitting Section. This calculation is performed automatically in the workbook,
and should not be modified by the user.
36. Oil/Condensate Tank Emissions (Production, Injection and Disposal Facilities) – Provide
the total VOC emissions (tons/yr) associated with oil or condensate tanks obtained using
the tanks specific program, the Vasquez-Beggs equation, or a combination of the two.
This value should also account for any controls, and should be reported as controlled
emissions if controls are used.
37. Total Emissions – This field notes the total VOC emissions (tons/yr) combined from
water tanks, oil tanks, and condensate tanks. This calculation is performed automatically
in the workbook, and should not be modified by the user.

Truck Loading
This tab is for estimating VOC emissions from truck loading using the equation found in AP 42
5.2-4.
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1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Amount Loaded Annually – Provide the total amount of product loaded annually in
bbls/yr (barrels per year).
3. Mode of Operation – This is a drop-down list containing several modes of operation
found in AP 42 5.2-5 including: Submerged loading of a clean cargo tank, Submerged
loading: dedicated normal service, Submerged loading: dedicated vapor balance service,
Splash loading of a clean cargo tank, Splash loading: dedicated normal service, and
Splash loading: dedicated vapor balance service. Select the mode of operation that best
fits the truck loading you are reporting.
4. S Factor – This field contains the saturation factor and is automatically populated
according to the “Mode of Operation” selected. These values can be found in AP 42 5.2-
5. This field should not be modified by the user.
5. True Vapor Pressure – Provide the true vapor pressure of the loaded liquid in psia
(pound per square inch absolute).
6. Molecular Weight – Provide the molecular weight of vapors in lbs/lb-mole (pounds per
pound mole).
7. Temp °R - Provide the temperature of the bulk loaded liquid °R (degree Rankine). This
number can be found by adding 460 to °F (degree Fahrenheit).
8. Control Type – This field contains a drop-down list of three selections, Combustor, VRU,
and No Control. Select the control status that best fits the unit you are reporting. This
field is defaulted to “No Control”.
9. Percent Control – This field is formatted as a percentage and is where the percent
control, provided by the “Control Type”, can be entered. This field is defaulted to 0%
control.
10. Emission Factor– This field contains the formula that calculates the VOC emission factor
in lbs/103 gal (pounds per thousand gallons) of liquid loaded. This formula can be found
in AP 42 5.2-4. This field should not be modified by the user.
11. Emissions – This field contains the formula that calculates the annual VOC emissions
(tons/yr). This calculation includes the conversion of bbls (barrels) to gal (gallons) by
multiplying by 42. This field should not be modified by the user.

21

Pneumatic Controllers
This tab is for estimating VOC emissions from pneumatic controllers using Subpart W and Allen
et al.a based emission factors. It is important to remember that this section is for systems where
the pneumatic supply source is natural gas.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Device Type – Provide the number of pneumatic controllers for each of the three
controller types High Bleed, Intermittent Bleed, and Low Bleed at the facility for which
you are reporting.
3. Average Hours per Device– Provide the annual average number of operating hours per
device.
4. Emission Factors – The values in these fields automatically populate with Subpart W and
Allen et al. based VOC emission factors according to the device type selected and should
not be modified by the user.
5. Emissions – This field contains the formula that calculates the annual VOC emissions
(tons/yr) and should not be modified by the user.

Pneumatic Pumps
This tab is for estimating VOC emissions from pneumatic pumps. It is important to remember
that this section is for systems where the pneumatic supply source is natural gas.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Pump Type – This is a drop-down list containing three types of devices, Piston Pump,
Diaphragm Pump, and Other. The user should select the pump type that best fits the
device they are reporting.
3. Pump Function Type – This field contains a drop-down list containing three pump
function types, Heat Trace, Methanol Injection, and Chemical Injection. The user should
select the pump function type that best fits the device they are reporting.

a Allen, D., et al. (2014), Methane Emissions from Process Equipment at Natural Gas Production Sites in
the United States: Pneumatic Controllers. Environmental Science & Technology
22

4. Total Annual Hours Operation – Provide the average number of annual operating hours
per pump.
5. Average Vent Rate – Provide the average vent rate of the device the user is reporting in
standard cubic feet per minute (scf/min).
6. Production Area Designation – This field is automatically populated according to the
“Facility Unique ID #” provided in column A and the associated “Production Area
Designation” assigned in the “Facilities List” tab, and should not be modified by the user.
7. Gas MW – This field notes the gas molecular weight of the gas used by the reported
device in pound per pound mole (lb/lb-mole). This field is dependent on the “Production
Area Designation” and associated default or user provided values from the
“ProdAreaDesignation&Analyses” tab. This field should not be modified by the user.
8. VOC Wt. Fraction – The value notes the VOC weight fraction of raw gas. This field is
dependent on the “Production Area Designation” and associated default or user
provided values from the “ProdAreaDesignation&Analyses” tab. This field should not be
modified by the user.
9. Control Type – This field contains a drop-down list of three selections, Combustor, VRU,
and No Control. Select the control status that best fits the unit you are reporting.
10. Percent Control – This field is formatted as a percentage and is where the percent
control, provided by the “Control Type”, can be entered. This field will be automatically
populated as 0% if “No Control” is selected as the “Control Type”.
11. Release Point – These are modifiable fields where users can use the pre-entered
defaults or can provide specific information about the release point (stack or fugitive)
related to each piece of reported equipment or activity. If no stack exists please change
the selection in the Stack/Fugitive column to “Fugitive”.
12. Emissions – This field contains a formula that calculates the annual VOC emissions
(tons/yr) and should not be modified by the user.

Fugitives
This tab is for estimating fugitive VOC well site emissions using EPA based emission factors.
These values are based on average component counts for each production area designation
provided on the “ProdAreaDesignation&Analyses” tab. These counts include the following
equipment types: valves, pump seals, connectors, flanges, open-ended line, and other. The
other category includes any equipment type other than connectors, flanges, open-ended lines,
pumps, or valves. Water disposal/injection and solid waste facilities should review the above
equipment types’ applicability to their operation to determine if they should report their
facility(s) in this tab. Water disposal/injection and solid waste facilities reporting should
23

designate the product source of their waste (oil, gas, or waxy crude operations) in the “Product
Type” section.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Production Area Designation – This field is automatically populated according to the
“Facility Unique ID #” provided in column A and the associated “Production Area
Designation” assigned in the “Facilities List” tab, and should not be modified by the user.
3. Product Type – This is a drop-down list containing three products: Oil, Gas, and CBM.
The user should select the product type for the reported facility.
4. Total Annual Hours of Operation – Provide the total annual operating hours for the
reported facility, this field is defaulted to “8760” hours but should be modified as
needed.
5. Emission Factor – The value in this field automatically populates with emission factors
according to data provided in the “Component Counts by Area Designation” tables
provided on the “ProdAreaDesignation&Analyses” tab, and the assigned “Production
Area Designation”.
6. Emissions – This field contains the formula that calculates the annual VOC emissions
(tons/yr) and should not be modified by the user.

Produced Water and Injection
This section is for estimating VOC emissions from produced water ponds and injection wells
using emission factors derived through a mass balance approach developed by UDAQ’s Permit
Section (see: https://deq.utah.gov/locations/U/uintahbasin/air-agencies-emissions-inventory/ponds-
landfarms-landfills-gaps-filling.htm). For further information about reporting for this tab see Error!
Reference source not found. in the appendix.
Note: Produced water facilities that skim oil or condensate product from ponds, and send the
collected product to a tank should report the product sent to tanks on the “Tanks” tab.
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Do you operate a skim pond or vault? – Select Yes or No from the drop-down menu for
the reported facility.
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3. Evaporation Pond Annual Throughput – Provide the total amount of product processed
through the facility’s evaporation pond(s) annually in bbls/yr (barrels per year).
Note: Only report evaporation pond throughput in this field for produced water that
remains in an evaporation pond throughout its processing and never enters an
injection well. Produced water that was placed into a pond and later transferred to an
injection well should be reported in the “Injection Well Throughput” column.
Additionally, if the facility has multiple ponds and they discharge into one another,
enter total throughput for the facility not throughput to each individual pond. This
avoids double counting emissions (i.e. pond discharges into another one or more but
water should only be counted once, not each time it moves from one pond to another).
4. Injection Well Annual Throughput – Provide the total amount of product processed
through the facility’s tanks, skim ponds and/or evaporation ponds which was
subsequently processed through injection wells(s) annually in bbls/yr (barrels per year).
Produced water that was placed into a skim pond and/or evaporation pond and later
transferred to an injection well should be reported here, not on the evaporation pond
throughput field.

If produced water is directly injected without going into a skim or evaporation pond,
injection well throughput should still be reported while “Do you operate a skim pond?”
is listed as “No” and evaporation pond throughput is left blank or “0”.
5. Emission Factors – The values in these fields were derived through a mass balance
approach developed by UDAQ’s Permit Section. This field should not be modified by the
user.
6. Emissions – This field contains the formula that calculates the annual VOC emissions
(tons/yr). This field should not be modified by the user.
Centrifuges
This section is for estimating VOC from centrifuges using an emission factor derived through a
TANKS 4.0.9d run by DAQ's Permit Section (see: https://deq.utah.gov/locations/U/uintahbasin/air-
agencies-emissions-inventory/ponds-landfarms-landfills-gaps-filling.htm).
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Annual Throughput – Provide the total amount of product entering the facility annually
in bbls/yr (barrels per year).
3. Control Type – This field contains a drop-down list of two selections, Controlled, and
Uncontrolled. Select the control status that best fits the Centrifuge you are reporting.
25

4. Percent Control – This field is formatted as a percentage and is where the percent
control, provided by the “Control Type”, should be entered. This field will be
automatically populated as 0% if “No Control” is selected as the “Control Type”.
5. Emission Factor – The values in these fields were derived through TANKS 4.0.9d run
performed by DAQ's Permit Section. This field should not be modified by the user.
6. Emissions – This field contains the formula that calculates the annual emissions
(tons/yr). This field should not be modified by the user.

Solid Waste Disposal
This section is for estimating VOC emissions from solid waste disposal using emission factors
derived through a mass balance approach developed by UDAQ’s Permit Section (see:
https://deq.utah.gov/locations/U/uintahbasin/air-agencies-emissions-inventory/ponds-landfarms-
landfills-gaps-filling.htm).
Note: Solid waste disposal emissions should only be estimated from disposal at end use
facilities (not facilities where the waste was generated).
1. Facility Name – Provide the Facility Name that was assigned to the facility in the
“Facilities List” tab using the dropdown menu or by manually entering the Facility Name.
Note: Facility Name must match the Facility Name assigned on the “Facilities List” tab
exactly.
2. Annual Throughput – Provide the total amount of product entering the facility annually
in kg/yr (kilograms per year).
Note: Enter throughput for each disposal site category type (landfill or landfarm) not
throughput to each individual disposal site if there is more than one disposal site type
at the facility. This avoids double counting emissions.
3. Disposal Site Type – This is a drop-down list containing two disposal site types: Landfarm
and Landfill. The user should select the disposal site type for the reported facility.
4. Emission Factor – The values in these fields were derived through a mass balance
approach developed by UDAQ’s Permit Section. This field should not be modified by the
user.
5. Emissions – This field contains the formula that calculates the annual VOC and (tons/yr).
This field should not be modified by the user.

Company Summary
The summary tab notes the company total for emissions by pollutant type (PM10, PM2.5, SOx,
NOx, VOC, CO, CH2O) summed from each worksheet. This worksheet is automatically populated
according to inputs on prior worksheets, and should not be modified by the user.
26