DAQ-2024-009152

DAQE-AN109740010-24

{{$d1 }}

Carlos Griggs
Williams International
3450 Sam Williams Drive
Ogden, UT 84401
[e-mail]

Dear Mr. Griggs:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN109740008-23 to
Update Flow Rates on Nickel Plating Flow Line to Match Manufacturer Specifications
Project Number: N109740010

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on May 1,
2024. Williams International must comply with the requirements of this AO, all applicable state
requirements (R307), and Federal Standards.

The project engineer for this action is Katie Andersen, who can be contacted at [phone] or
[e-mail]. Future correspondence on this AO should include the engineer's name as well as
the DAQE number shown on the upper right-hand corner of this letter.

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:KA:jg

cc: Weber-Morgan Health Department
EPA Region 8

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

July 17, 2024

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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APPROVAL ORDER
DAQE-AN109740010-24
Administrative Amendment to Approval Order
DAQE-AN109740008-23 to Update Flow Rates on
Nickel Plating Flow Line to Match Manufacturer Specifications

Prepared By
Katie Andersen, Engineer
[phone]
[e-mail]

Issued to
Williams International - Gas Turbine Engine Production Plant

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

July 17, 2024
TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 5
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 7
PERMIT HISTORY ................................................................................................................... 11
ACRONYMS ............................................................................................................................... 12

DAQE-AN109740010-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Williams International Williams International - Gas Turbine Engine
Production Plant

Mailing Address Physical Address
3450 Sam Williams Drive 3450 Sam Williams Drive
Ogden, UT 84401 Ogden, UT 84401

Source Contact UTM Coordinates
Name: Carlos Griggs 415,355 m Easting
Phone: [phone],561,590 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12

SIC code 3724 (Aircraft Engines & Engine Parts)

SOURCE INFORMATION
General Description
Williams International (Williams) manufactures gas turbine engines for military and commercial
applications at a site near the Ogden Airport in Weber County. There are plasma spray booths controlled
by a dust collector; shot peens controlled by a dust collector; acid-etching processes controlled by a wet
scrubber; nickel alloying processes; nickel plating processes controlled by a wet scrubber; aluminum
foundry operations; natural gas preheat ovens and a burn-out oven with an attached afterburner;
heat-treatment units; natural gas fueled emergency generator engines, natural gas-turbine engines; jet fuel
storage tanks; spray paint coating booths; composite forming operations; natural gas fueled boilers;
propane fueled forklifts, steam cleaners, and water heaters; parts cleaning processes; welding activities;
natural gas fueled furnaces, ovens, and comfort heaters in the plant.

NSR Classification
Administrative Amendment

Source Classification
Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA
Weber County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal
Combustion Engines
DAQE-AN109740010-24
Page 4

MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Description
Williams has requested changes to the AO DAQE-AN109740008-23, dated September 18, 2023, as
follows:

1. Change AO Condition II.B.3.b (C) Wet Scrubber-Nickel Plating Etch Line scrubber flow rate to
manufacturer specifications.

SUMMARY OF EMISSIONS

The emissions listed below are an estimate of the total potential emissions from the source. Some
rounding of emissions is possible.

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 0 9100.00
Carbon Monoxide 0 10.62
Nitrogen Oxides 0 15.19
Particulate Matter - PM10 0 2.52
Particulate Matter - PM2.5 0 2.52
Sulfur Dioxide 0 5.44
Volatile Organic Compounds 0 19.89

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 0 154
Acrolein (CAS #107028) 0 106
Benzene (Including Benzene From Gasoline) (CAS #71432) 0 55
Chromium Compounds (CAS #CMJ500) 0 8
Ethyl Benzene (CAS #100414) 0 5
Formaldehyde (CAS #50000) 0 624
Generic HAPs (CAS #GHAPS) 0 600
Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 1460
Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 92
Methanol (CAS #67561) 0 26
Naphthalene (CAS #91203) 0 276
Phenol (CAS #108952) 0 274
Styrene (CAS #100425) 0 3
Toluene (CAS #108883) 0 2120
Xylenes (Isomers And Mixture) (CAS #1330207) 0 46
Change (TPY) Total (TPY)
Total HAPs 0 2.93

DAQE-AN109740010-24
Page 5

SECTION I: GENERAL PROVISIONS

I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in
the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions
refer to those rules. [R307-101]

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

I.3 Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by
the owner/operator, shall be made available to the Director or Director's representative upon
request, and the records shall include the two-year period prior to the date of the request.
Unless otherwise specified in this AO or in other applicable state and federal rules, records
shall be kept for a minimum of two (2) years. [R307-401-8]

I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO,
including associated air pollution control equipment, in a manner consistent with good air
pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to
the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]

I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories.
[R307-150]

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Turbine Engine Manufacturer
Plant Wide

II.A.2 Various Boilers and Heaters
Boilers, furnaces, ovens, and comfort heaters rated <5 MMBtu/hr each
Fuel: natural gas

II.A.3 Aluminum Foundry Operation
Includes: sand mixers, sand printer, aluminum melt pots, bake-out ovens, and heat treat ovens

II.A.4 Casting Operations
General casting, machining, and milling operations

DAQE-AN109740010-24
Page 6

II.A.5 Emergency Generator Engine
Rating: 60 kW (154 hp)
Fuel: natural gas
Manufacture date: 2003
MACT Subpart ZZZZ

II.A.6 Emergency Generator Engine
Rating: 100 kW (189 hp)
Fuel: natural gas
Manufacture date: 2019
NSPS Subpart JJJJ
MACT Subpart ZZZZ

II.A.7 Miscellaneous Equipment
Three (3) forklifts
Four (4) steam cleaning units
Water heaters
Fuel: propane

For informational purposes only.

II.A.8 Coating Spray Booth
Control: dust collector

II.A.9 Plasma Spray Booths
Three (3) plasma spray operations
Control: dust collector

II.A.10 Shot Peen Operations
One (1) shot-peen device
Control: dust collector (vented indoors)

Listed for informational purposes only

II.A.11 Heat Treatment Area
This is an electrically powered unit. For informational purposes only.

II.A.12 Cleaning Processes
Three (3) cold-cleaning degreasers

II.A.13 Etching Processes
One (1) acid etch line
Control: wet scrubber
Flow rate: 6,000 acfm
Scrubbing liquid: basic water
pH: 5 - 10

One (1) blue acid etch line
Control: wet scrubber
Flow rate: 1,800 acfm
Scrubbing liquid: water
pH: 6 - 8

DAQE-AN109740010-24
Page 7

II.A.14 Nickel Plating Operation
Control: one (1) packed bed wet scrubbing device
Flow rate: 7,500 acfm
Scrubbing liquid: basic water
pH: 5 - 10

II.A.15 Storage Tanks
Five (5) storage tanks
Capacity: 10,000 gallons each
Contents: Jet Fuel

II.A.16 Turbine Engine Test Stands
Five (5) turbine engine test stands

II.A.17 Welding Operations

SECTION II: SPECIAL PROVISIONS

II.B REQUIREMENTS AND LIMITATIONS

II.B.1 Plantwide Requirements
II.B.1.a Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions from
any emission unit on site to exceed 20% opacity. [R307-305-3]

II.B.1.a.1 Unless otherwise specified in this AO, opacity observations of emissions from stationary sources
shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-305-3]

II.B.2 Turbine Engine Manufacturing
II.B.2.a Visible emissions from any stationary point source or fugitive emission source associated with
the installation of the source or with the control facilities shall not exceed the following values:

A. Plasma spray operation stack - 10% opacity.

B. All boiler and fuel burning furnace stacks - 10% opacity.

C. Engine test cell stacks - 20% opacity.

D. All scrubbers - 15% opacity.

[R307-201-3]

II.B.2.b The owner/operator shall not consume more than the following:

A. 200,000 gallons of jet fuel per rolling 12-month total.

B. 130,000,000 cubic feet of natural gas per rolling 12-month total.

C. 8,000 gallons of propane per rolling 12-month total.

[R307-401-8]

DAQE-AN109740010-24
Page 8

II.B.2.b.1 The owner/operator shall:

A. Determine consumption by examination of the jet fuel supplier, natural gas provider,
or propane supplier billing records.

B. Record consumption on a monthly basis.

C. Use the consumption data to calculate a new rolling 12-month total by the 20th day of
each month using data from the previous 12 months.

D. Keep the consumption records for all periods the plant in operation.

[R307-401-8]

II.B.2.c The owner/operator shall use only natural gas as fuel in the boilers. The owner/operator shall use
only natural gas or propane as fuel in the other fuel burning equipment, excluding jet engines.
[R307-401-8]

II.B.3 Packed Bed Wet Scrubber and Baghouse Requirements
II.B.3.a The owner/operator shall install a monitoring device to measure the scrubbing liquid flow rate
through each scrubber. [R307-401-8]

II.B.3.a.1 The monitoring device shall be located such that an inspector/operator can safely read the
indicator at any time. [R307-401-8]

II.B.3.a.2 The monitoring device shall measure the liquid flow rate in 10 gpm increments or less.
[R307-401-8]

II.B.3.b During operation of each scrubber, the owner/operator shall maintain the following liquid flow
rate operating parameters within the indicated ranges:

A. Wet scrubber - acid-etching line casting:
The recirculation liquid flow rate shall not be less than 48 gpm or more than 78 gpm.

B. Wet scrubber - blue acid etch line:
The recirculation liquid flow rate shall not be less than 80 gpm or more than 110 gpm.

C. Wet scrubber - nickel plating etch line:
The recirculation liquid flow rate shall not be less than 50 gpm or more than 56 gpm.

[R307-401-8]

II.B.3.b.1 The owner/operator shall record the liquid flow rate at least once per operating day while the
scrubber is operating. [R307-401-8]

II.B.3.b.2 The owner/operator shall maintain the following records of the liquid flow rate:

A. Unit identification;

B. Date of reading;

C. Daily liquid flow rate readings.

[R307-401-8]

II.B.3.c At least once every 12 months, the owner/operator shall calibrate or replace the liquid flow rate
monitoring device in accordance with the manufacturer's instructions. [R307-401-8]

DAQE-AN109740010-24
Page 9

II.B.3.c.1 The owner/operator shall maintain records of each liquid flow rate monitoring device calibration
or replacement. [R307-401-8]

II.B.3.d The monitoring device shall be located such that an inspector/operator can safely read the
indicator at any time. [R307-401-8]

II.B.3.e The owner/operator shall install a magnehelic pressure gauge to measure the static pressure
differential across each scrubber and each baghouse. [R307-401-8]

II.B.3.e.1 The pressure gauge shall be located such that an inspector/operator can safely read the indicator
at any time. [R307-401-8]

II.B.3.e.2 The pressure gauge shall measure the pressure drop in 0.5-inch water column increments or less.
[R307-401-8]

II.B.3.f During operation of the scrubber/baghouse, the owner/operator shall maintain the static pressure
drop across each scrubber and each baghouse according to the following values:

A. Blue etching scrubber - one (1) to four (4) inches of water column.

B. Acid etching scrubbers - one (1) to four (4) inches of water column.

C. Nickel plating scrubbers - one (1) to four (4) inches of water column.

D. Plasma spray baghouse - two (2) to four (4) inches of water column.

[R307-401-8]

II.B.3.f.1 The owner/operator shall record the static pressure differential at least once per operating day
while the scrubber or the baghouse is operating. [R307-401-8]

II.B.3.f.2 The owner/operator shall maintain the following records of the static pressure differential:

A. Unit identification;

B. Date of reading;

C. Daily static pressure differential drop readings.

[R307-401-8]

II.B.3.g At least once every 12 months, the owner/operator shall calibrate the pressure gauge in
accordance with the manufacturer's instructions or list all replacements of each pressure gauge.
[R307-401-8]

II.B.3.g.1 The owner/operator shall maintain records of each pressure gauge calibration or list any
replacements of each pressure gauge. [R307-401-8]

II.B.4 Cold Cleaning Degreaser Requirements
II.B.4.a The owner/operator shall comply with R307-335-4 during operations. [R307-335-4]

II.B.5 VOC and HAP Limitations
II.B.5.a The owner/operator shall comply with R307-350-5 and R307-355-5 during operations.
[R307-350-5, R307-355-5]

DAQE-AN109740010-24
Page 10

II.B.5.b The owner/operator shall not emit more than the following from evaporative sources (painting,
printing, coating, and/or cleaning) on site:

17.47 tons per rolling 12-month period of VOCs

2.92 tons per rolling 12-month period of HAPs (including trivalent Chromium and hexavalent
Chromium).

[R307-401-8]

II.B.5.b.1 The owner/operator shall calculate a new 12-month total by the 20th day of each month using
data from the previous 12 months. The owner/operator shall use a mass-balance method to
calculate emissions from evaporative sources. The owner/operator may use the following
equations with applicable units to comply with the mass-balance method:

VOCs = [% VOCs by Weight/100] x [Density] x [Volume Consumed] x [Each Component
Control Efficiency].

HAPs = [% HAPs by Weight/100] x [Density] x [Volume Consumed] x [Each Component
Control Efficiency].

[R307-401-8]

II.B.5.b.2 The owner/operator shall use a mass-balance method to quantify any amount of VOCs and HAP
reclaimed. The owner/operator shall subtract the amount of VOCs and HAPs reclaimed from the
quantities calculated above to provide the monthly total emissions of VOCs and HAPs.
[R307-401-8]

II.B.5.b.3 The owner/operator shall keep records each month of the following:

A. The name (as per SDS) of the VOC- and HAP-emitting material.

B. The maximum percent by weight of VOCs and each HAP in each material used.

C. The density of each material used.

D. The volume of each VOC- and HAP-emitting material used.

E. The amount of VOCs and the amount of each HAP emitted from each material.

F. The amount of VOCs and the amount of each HAP reclaimed and/or controlled from
each material.

G. The total amount of VOCs, the total amount of each HAP, and the total amount of all
HAPs combined emitted from all materials (in tons).

[R307-401-8]

II.B.6 Emergency Generator Engines Requirements
II.B.6.a The owner/operator shall use natural gas as fuel only in each emergency generator engine.
[R307-401-8]

II.B.6.b The owner/operator shall not operate each emergency engine on site for more than 100 hours per
rolling 12-month period during non-emergency situations. There is no time limit on the use of
the engines during emergencies. [40 CFR 63 Subpart ZZZZ, R307-401-8]

DAQE-AN109740010-24
Page 11

II.B.6.b.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new
12-month total by the 20th day of each month using data from the previous 12 months. Records
documenting the operation of each emergency engine shall be kept in a log and shall include the
following:

A. The date the emergency engine was used.

B. The duration of operation in hours.

C. The reason for the emergency engine usage.

[40 CFR 63 Subpart ZZZZ, R307-401-8]

II.B.6.b.2 To determine the duration of operation, the owner/operator shall install a non-resettable hour
meter for each emergency engine. [R307-401-8]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents:

Supersedes AO DAQE-AN109740008-23 dated September 18, 2023
Is Derived From NOI dated May 1, 2024
Incorporates Additional Information dated May 30, 2024

DAQE-AN109740010-24
Page 12

ACRONYMS

The following lists commonly used acronyms and associated translations as they apply to this document:

40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by Environmental Protection Agency to classify
sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - Title 40 of the Code of Federal Regulations Part 98,
Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal Division of Air Quality use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - Title 40 of the Code of Federal Regulations 52.21 (b)(49)(i)
GWP Global Warming Potential - Title 40 of the Code of Federal Regulations Part 86.1818-
12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

Katie Andersen <[e-mail]>
Engineer Review for Administrative Amendment to DAQE-AN0109740008-23
3 messages
Katie Andersen <[e-mail]>Tue, Jul 9, 2024 at 12:12 PM
To: [e-mail]
Hello Carlos,
The Division of Air Quality has finished an Administrative Amendment to Approval Order DAQE-AN0109740008-23 to
update the flow rate on the nickel plating flow line to match manufacturer specifications. This administrative amendment
took place based on the NOI that Williams International submitted on May 1st, 2024.
Please see the updated Engineer Review document for your review. Please review the document thoroughly to ensure
that the contents are correct. Upon approval, please sign and email it back to me at your earliest convenience.
Cheers,
Katie Andersen
--

Katie Andersen
Engineering Technician I | Minor NSR Section
M: [phone]
airquality.utah.gov
RN109740010.rtf
1608K
[e-mail] <[e-mail]>Wed, Jul 10, 2024 at 9:03 AM
To: [e-mail]
Hello Katie,

Yes, let me review the Amendment and I will get back with you soon.

I appreciate all your help.

Thank you,
7/15/24, 9:25 AM State of Utah Mail - Engineer Review for Administrative Amendment to DAQE-AN0109740008-23
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r608018411049758265&simpl=msg-a:r-534631350997403…1/4
Carlos

From: Katie Andersen <[e-mail]>
Sent: Tuesday, July 9, 2024 12:13 PM
To: Griggs, Carlos <[e-mail]>
Subject: Engineer Review for Administrative Amendment to DAQE-AN0109740008-23

CAUTION: EXTERNAL EMAIL
Hello Carlos,

The Division of Air Quality has finished an Administrative Amendment to Approval Order DAQE-AN0109740008-23 to
update the flow rate on the nickel plating flow line to match manufacturer specifications. This administrative amendment
took place based on the NOI that Williams International submitted on May 1st, 2024.

Please see the updated Engineer Review document for your review. Please review the document thoroughly to ensure
that the contents are correct. Upon approval, please sign and email it back to me at your earliest convenience.

Cheers,
Katie Andersen

--

Katie Andersen
Engineering Technician I | Minor NSR Section
M: [phone]
airquality.utah.gov

WILLIAMS INTERNATIONAL THE POWER OF VISION
7/15/24, 9:25 AM State of Utah Mail - Engineer Review for Administrative Amendment to DAQE-AN0109740008-23
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r608018411049758265&simpl=msg-a:r-534631350997403…2/4
This email message and any attachment(s) are for the sole use of the intended
recipient(s) and may contain proprietary and/or confidential and/or export controlled
information which may be privileged or otherwise protected from disclosure.
Any unauthorized review, use, disclosure or distribution is prohibited. If you are
not the intended recipient(s), please contact [e-mail] and destroy
the original message and any copies of the message as well as any attachment(s)
to the original message.
This email message does not form a binding contract or contract amendment with
the sender, unless it clearly states in writing that it is a contract or contract amendment.
[e-mail] <[e-mail]>Fri, Jul 12, 2024 at 12:00 PM
To: [e-mail]
Hello Katie,

I only had one comment, but I didn’t see all the comments at the end of the document so I am good with it.

I have attached another copy with my signature and date.

Thank you,
Carlos

From: Katie Andersen <[e-mail]>
Sent: Tuesday, July 9, 2024 12:13 PM
To: Griggs, Carlos <[e-mail]>
Subject: Engineer Review for Administrative Amendment to DAQE-AN0109740008-23

CAUTION: EXTERNAL EMAIL
Hello Carlos,

The Division of Air Quality has finished an Administrative Amendment to Approval Order DAQE-AN0109740008-23 to
update the flow rate on the nickel plating flow line to match manufacturer specifications. This administrative amendment
took place based on the NOI that Williams International submitted on May 1st, 2024.

Please see the updated Engineer Review document for your review. Please review the document thoroughly to ensure
that the contents are correct. Upon approval, please sign and email it back to me at your earliest convenience.

Cheers,
Katie Andersen

7/15/24, 9:25 AM State of Utah Mail - Engineer Review for Administrative Amendment to DAQE-AN0109740008-23
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r608018411049758265&simpl=msg-a:r-534631350997403…3/4
--

Katie Andersen
Engineering Technician I | Minor NSR Section
M: [phone]
airquality.utah.gov

WILLIAMS INTERNATIONAL THE POWER OF VISION
[Quoted text hidden]
2 attachments
RN109740010 Comments.pdf
339K
RN109740010 Signed & Dated.pdf
626K
7/15/24, 9:25 AM State of Utah Mail - Engineer Review for Administrative Amendment to DAQE-AN0109740008-23
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r608018411049758265&simpl=msg-a:r-534631350997403…4/4
6/6/24, 12:19 PM State of Utah Mail - Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r-8972418748478743230&simpl=msg-a:r95311831101859…1/4
Katie Andersen <[e-mail]>
Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28
4 messages
Katie Andersen <[e-mail]>Thu, May 30, 2024 at 9:19 AM
To: [e-mail]
Hello Carlos,
The DAQ received your request to update the flow conditions of II.B.3.b(C) of AO DAQE-AN108740008-28 on May 1,
2024. I've been working on updating that in your permit. I've spent some time talking to the engineer that wrote the permit,
and digging through the files in the record to see where the information went funky.
For your information, the updated permit is in the process of internal review. After the first review, I realized that the
emissions listed in the AO should decrease as a result of the lower flow rate in the nickel plating etch line, assuming that
the calculations were done with the flow rate that is listed in the current permit.
Will you please provide emission estimates for a flow rate of 50-56 gmp on the nickel plating etch line? If the original
emission estimates used a flow rate in that range, will you send that to me as well so that I may verify it?
Cheers,
Katie Andersen
--

Katie Andersen
Engineering Technician I | Minor NSR Section
M: [phone]
airquality.utah.gov
[e-mail] <[e-mail]>Thu, May 30, 2024 at 11:49 AM
To: [e-mail]
Hello Katie,

I have attached what was submitted to permitting that includes the scrubber information and the emission rates. I am not
sure how this was missed, unfortunately Dave Holden who was in my current position retired, but Dave submitted to
permitting all the information per the specs of this specific model for the Nickel plating scrubber.

There is also an email with the engineer asking Dave the specs of the Scrubber and him providing that information so I
am not sure how the scrubber info was missed, unfortunately I was not here when all this happened.
6/6/24, 12:19 PM State of Utah Mail - Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r-8972418748478743230&simpl=msg-a:r95311831101859…2/4

If you have any other questions please let me know.

Thanks,
Carlos

From: Katie Andersen <[e-mail]>
Sent: Thursday, May 30, 2024 9:19 AM
To: Griggs, Carlos <[e-mail]>
Subject: Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28

CAUTION: EXTERNAL EMAIL
Hello Carlos,

The DAQ received your request to update the flow conditions of II.B.3.b(C) of AO DAQE-AN108740008-28 on May 1,
2024. I've been working on updating that in your permit. I've spent some time talking to the engineer that wrote the permit,
and digging through the files in the record to see where the information went funky.

For your information, the updated permit is in the process of internal review. After the first review, I realized that the
emissions listed in the AO should decrease as a result of the lower flow rate in the nickel plating etch line, assuming that
the calculations were done with the flow rate that is listed in the current permit.

Will you please provide emission estimates for a flow rate of 50-56 gmp on the nickel plating etch line? If the original
emission estimates used a flow rate in that range, will you send that to me as well so that I may verify it?

Cheers,
Katie Andersen

--

6/6/24, 12:19 PM State of Utah Mail - Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r-8972418748478743230&simpl=msg-a:r95311831101859…3/4
Katie Andersen
Engineering Technician I | Minor NSR Section
M: [phone]
airquality.utah.gov

WILLIAMS INTERNATIONAL THE POWER OF VISION
This email message and any attachment(s) are for the sole use of the intended
recipient(s) and may contain proprietary and/or confidential and/or export controlled
information which may be privileged or otherwise protected from disclosure.
Any unauthorized review, use, disclosure or distribution is prohibited. If you are
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SKM_C300i24053101250.pdf
1775K
Katie Andersen <[e-mail]>Thu, May 30, 2024 at 12:46 PM
To: [e-mail]
Carlos,
Do you have an excel spreadsheet with the calculations that you can send me?
Just to clarify, the emission calculations that were done for the current AO when the modification occurred included the
50-56 gpm flow rate for the nickel plating line?
I, too, was not here when this originally happened, so it has been a fun time figuring out all the details.
Cheers,
Katie
[Quoted text hidden]
--

[Quoted text hidden]
[e-mail] <[e-mail]>Mon, Jun 3, 2024 at 10:35 AM
To: [e-mail]
6/6/24, 12:19 PM State of Utah Mail - Update to AO Condition II.B.3.b(C) of AO DAQE-AN109740008-28
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r-8972418748478743230&simpl=msg-a:r95311831101859…4/4
Hello Katie,

I would think Dave would have used the 50-56 gpm flow rate for the nickel plating since that’s what the initial NOI
submission information included for that scrubber.

On Form 9 for Scrubbers & Wet Collectors it mentions under PTE (Please see the attached calculations). I believe Dave
was referring to Attachment 2 Process Description Nickel Plating.

I have attached an excel sheet dated 5/30/2023.
[Quoted text hidden]
[Quoted text hidden]
3 attachments
2022_updated NOI entire plant.xlsx
124K
May_09_2020_Scrubber_Form09.pdf
161K
May_10_2022_Plating_NOI_Form_4_DAQ-2018-002274.pdf
64K
Page 1 of 1
Form 4 Company____________________________
Project Information Site ______________________________

Utah Division of Air Quality
New Source Review Section
Process Data - For Modification/Amendment ONLY
1. Permit Number_______________________________
If submitting a new permit, then use Form 3
Requested Changes
2. Name of process to be modified/added:
_______________________________

End product of this process:

_______________________________

3. Permit Change Type: New Increase*

Equipment

Process

Condition Change ____________________

Other ______________________________

Other ______________________________

Other ______________________________

4. Does new emission unit affect existing
permitted process limits?

Yes No
5. Condition(s) Changing:

6. Description of Permit/Process Change**

7. New or modified materials and quantities used in process. **
Material Quantity Annually

8. New or modified process emitting units **

Emitting Unit(s)

Capacity(s)

Manufacture Date(s)

*If the permit being modified does not include CO2e or PM2.5, the emissions need to be calculated and submitted to DAQ, which may result in an
emissions increase and a public comment period.
**If additional space is required, please generate a document to accommodate and attach to form.

Doc.uim:i'ii D^lc: 02/28/2018
DAQ 2018-002274
1 of 1
Form 2 Date ____________
Company Information/Notice of Intent (NOI)
Utah Division of Air Quality
New Source Review Section
Application for: □ Initial Approval Order □Approval Order Modification
General Owner and Source Information
1.Company name and mailing address:
____________________________
____________________________
____________________________
Phone No.: ( )
Fax No.: ( )
2.Company** contact for environmental matters:
____________________________
Phone no.: ( )
Email: _______________________
** Company contact only; consultant or independent contractor contact
information can be provided in a cover letter
3.Source name and physical address (if different from
above):____________________________
____________________________
____________________________
Phone no.: ( )
Fax no.: ( )
4.Source Property Universal Transverse Mercator
coordinates (UTM), including System and Datum:
5.The Source is located in:__________________ County
UTM:_________________________
X:________________ _______
Y___________________________
6. Standard Industrial Classification Code (SIC)
__ __ __ __
7.If request for modification, AO# to be modified: DAQE #__________________ DATED: ____/____/____
8.Brief (50 words or less) description of process.
Electronic NOI
9.A complete and accurate electronic NOI submitted to DAQ Permitting Mangers Jon Black ([e-mail]) or Alan
Humpherys ([e-mail]) can expedite review process. Please mark application type.
Hard Copy Submittal Electronic Copy Submittal □ Both
Authorization/Signature
I hereby certify that the information and data submitted in and with this application is completely true, accurate and
complete, based on reasonable inquiry made by me and to the best of my knowledge and belief.
Signature: Title:
_______________________________________
Name (Type or print)
Telephone Number:
( )
Email:
Date:
DAO 2018 002272
Form 1 Date __________________
Notice of Intent (NOI) Application Checklist
Company __________________
Utah Division of Air Quality
New Source Review Section
Source Identification Information [R307-401-5]
1. Company name, mailing address, physical address and telephone number 
2. Company contact (Name, mailing address, and telephone number)
3.Name and contact of person submitting NOI application (if different than 2)
4.Source Universal Transverse Mercator (UTM) coordinates 
5. Source Standard Industrial Classification (SIC) code 
6.Area designation (attainment, maintenance, or nonattainment)
7.Federal/State requirement applicability (NAAQS, NSPS, MACT, SIP, etc.)
8.Source size determination (Major, Minor, PSD)
9. Current Approval Order(s) and/or Title V Permit numbers 
NOI Application Information: [R307-401]










N/A 
N/A 
A.Air quality analysis (air model, met data, background data, source impact analysis) N/A 
1.Detailed description of the project and source process
2.Discussion of fuels, raw materials, and products consumed/produced
3.Description of equipment used in the process and operating schedule
4.Description of changes to the process, production rates, etc.
5.Site plan of source with building dimensions, stack parameters, etc.
6.Best Available Control Technology (BACT) Analysis [R307-401-8]
A.BACT analysis for all new and modified equipment
7.Emissions Related Information: [R307-401-2(b)]
A.Emission calculations for each new/modified unit and site-wide
(Include PM10, PM2.5, NOx, SO2, CO, VOCs, HAPs, and GHGs)
B.References/assumptions, SDS, for each calculation and pollutant
C.All speciated HAP emissions (list in lbs/hr)
8.Emissions Impact Analysis – Approved Modeling Protocol [R307-410]
A.Composition and physical characteristics of effluent
(emission rates, temperature, volume, pollutant types and concentrations)
9.Nonattainment/Maintenance Areas – Major NSR/Minor (offsetting only) [R307-403]
A.NAAQS demonstration, Lowest Achievable Emission Rate, Offset requirements
B.Alternative site analysis, Major source ownership compliance certification
10.Major Sources in Attainment or Unclassified Areas (PSD) [R307-405, R307-406]
B.Visibility impact analysis, Class I area impact
11.Signature on Application
N/A 
Note: The Division of Air Quality will not accept documents containing confidential information or data.
Documents containing confidential information will be returned to the Source submitting the application.
iJoc.i-iirKji'il Dale:' (X!/AS,‘2C U
DAQ 2018-002271
TABLE 1: FACILITY WIDE EMISSION INFORMATION FROM NATURAL GAS USAGE
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09Emission Calculations
Natural Gas fired equipment Rating
(MMBTU/hr)
Aerco Boiler 1.72
Futera III Boilers (3)0.65 Each
Emergency Generator (Cummins)60 kW
Emergency Generator (Generac)100 kW
Industrial Furnaces Multiple
Various ovens and comfort heaters Multiple
Factor Emissions Factor Emissions Factor Emissions Factor Emissions Factor Emissions Factor Emissions
(lb/10xE6 cf)(lbs)(lb/10xE6 cf)(lbs)(lb/10xE6 cf)(lbs)(lb/10xE6 cf)(lbs)(lb/10xE6 cf)(lbs)(lb/10xE6 cf)(lbs)
Natural Gas Usage 7.6 988.00 100 13000.00 84 10920.00 5.5 715.00 Various 245.267 0.6 78.00
lbs/yr PM10 =1233.3 lbs/yr NOx =13000.0 lbs/yr CO =10920.0 lbs/yr VOC's =715.0 lbs/yr HAP's =245.27 lbs/yr SO2 =78.00
tons/yr PM10 =0.617 tons/yr NOx = 6.500 tons/yr CO =5.460 tons/yr VOC's = 0.358 tons/yr HAP's =0.12 tons/yr SO2 =0.039
TABLE NOTES:
Emissions (lbs) = Emission factor (lb/10xE6 cu. Ft.) x Consumption (cu. ft.)
All Factors based on AP-42, Tables 1.4.1, 1.4.2, 1.4.3.; PM 10 , NOx, CO, VOC factors based on factors for uncontrolled small boilers (<100 mmbtu) used for boilers and water heaters
Emission Factor Emissions Emissions
HAP CAS lb/106 SCF Lb/Yr Tons/Yr
x Benzene 71-43-2 2.10E-03 2.73E-01 1.37E-04
x Formaldehyde 50-00-0 7.50E-02 9.75E+00 4.88E-03
x Hexane 110-54-3 1.80E+00 2.34E+02 1.17E-01
x Naphthalene 91-20-3 6.10E-04 7.93E-02 3.97E-05
x Toluene 108-88-3 3.40E-03 4.42E-01 2.21E-04
x Arsenic 7440-38-2 2.00E-04 2.60E-02 1.30E-05
x Beryllium 7440-41-7 1.20E-05 1.56E-03 7.80E-07
x Cadmium 7440-43-9 1.10E-03 1.43E-01 7.15E-05
x Chromium 7440-47-3 1.40E-03 1.82E-01 9.10E-05
x Cobalt 7440-48-4 8.40E-05 1.09E-02 5.46E-06
x Manganese 7439-96-5 3.80E-04 4.94E-02 2.47E-05
Mercury 7439-97-6 2.60E-04 3.38E-02 1.69E-05
Nickel 7440-02-0 2.10E-03 2.73E-01 1.37E-04
Selenium 7782-49-2 2.40E-05 3.12E-03 1.56E-06
Total 245.27 0.12
VOC's HAP's
Annual Natural Gas Usage (cu. ft.)
1.30E+08
Point Source
Annual Pollutant Emissions
PM10 NOx CO SO2
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 Table 2: WELDING EMISSIONS
Emission Calculations
Welding Rod Type Classification % padding Quantity Used AP-42 Class Factor Emissions Factor Emissions Factor Emissions Factor Emissions Factor Emissions
(lbs/year)(lb/1000 lb)(lbs/ yr)(lb/10000 lb)(lbs/ yr)(lb/10000 lb)(lbs/ yr)(lb/10000 lb)(lbs/ yr)(lb/10000 lb)(lbs/ yr)
Covered Electrode AWS E-6011 140%1400 SMAW-E6011 38.4 53.76 0.05 0.007 0.01 0.001 9.98 1.3972 0.05 0.007
Covered Electrode AWS E7018H4R 140%1400 SMAW-E7018 18.4 25.76 0.06 0.008 0.01 0.0014 10.3 1.442 0.02 0.0028
0.015 0.003 2.839 0.010
82.39 2.87
TABLE NOTES:
PM 10 Emissions (lbs) = Emission factor (lb/1000 lbs) x Consumption (lbs/ yr)
HAP Emissions (lbs) = Emission factor (lb/10000 lbs) x Consumption (lbs/ yr)
PM 10 Factors based on AP-42, Table 12.19.1
HAP Factors based on AP-42, Table 12.19.2
Total PM10 (lbs/yr):Total HAP's (lbs/yr):
PM HAPs
PM10 Chromium Cobalt Manganese Nickel
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 Table 3: EMISSION INFORMATION FROM PROPANE USAGEEmission Calculations
Forklifts; propane
powered cleaning
equipment
8000 0.7 5.6 1.50 12.00 13.00 104.00 1.00 8.00 7.50 60.00
TOTAL PM10
(lbs):5.60 TOTAL SO2 (lbs):12.00 TOTAL NOx
(lbs):104.00 TOTAL VOC
(lbs):8.00 TOTAL CO
(lbs):60.00
PM10 SO2 NOx VOC CO
0.7 1.5 13.0 1.0 7.5
USEPA AP-42 Chapter 1.5, Table 1.5-1
Factor *Emissions (lbs)Factor *Emissions (lbs)
SOURCE Annual Propane
Usage (gal/yr)
POLLUTANT EMISSIONS
PM10 SO2 NOx VOC CO
Factor *Emissions (lbs)
Propane Combustion Emission Factors (Lb/1000 gal)
Factor *Emissions (lbs)Factor *Emissions (lbs)
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 Table 4: JET FUEL USAGE & COMBUSTION EMISSIONSEmission Calculations
Fuel (lbs)Factor Emissions Factor Emissions Factor Emissions Factor Emissions Factor Emissions
(6.75 lbs/gal)(lbs/1000lbs)(lbs/yr)(lbs/1000lbs)(lbs/yr)(lbs/1000lbs)(lbs/yr)(lbs/1000lbs)(lbs/yr)(lbs/1000lbs)(lbs/yr)
200,000 1,350,000.00 12.8 17280.0 7.6 10260.0 7.99 10786.5 2.3 4122.6 2.0 3717.6
tons/yr =8.64 tons/yr =5.13 tons/yr =5.39 tons/yr =2.06 tons/yr =1.86
Table Notes:
* NOx and SO 2 factors taken from Williams Int'l data testing of FJ44 engine. Other factors taken from IERA database averages below.
** VOC includes HAPs considered as VOC
*** PM 10 includes HAPs considered as PM 10
Fuel (lbs)Acetaldehyde Acrolein Benzene Ethyl-benzene Formaldehyde Naphthalene Styrene Toluene Xylenes
(6.75 lbs/gal)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)(lbs/yr)
200,000 1,350,000.00 153.63 105.98 55.22 3.69 614.52 35.98 3.43 13.82 31.32
TABLE NOTE:1017.58
HAP Emissions (lbs/yr) = Emission factor (lb/1000 lbs) x Fuel usage (lbs/ yr)0.51
Jet Engine Emission Factors for Criteria Pollutants (Source: U.S. Air Force IERA)
Avg Fuel Flowrate
(lbs/hr)NOx CO PM10 VOC
F100-PW-100 5266 21.74 10.12 2.02 2.33
F100-PW-200 4568.5 21.38 7.35 2.02 2.22
F100-PW-220 5092.5 17.16 9.73 2.02 4.43
F100-PW-229 5378 23.32 3.03 2.01 0.35
Average:5076.3 20.9 7.6 2.0 2.3
Table Note: Average flowrates and pollutant emission rates were derived from engine speeds
classified as idle, approach, intermediate, and "military" factors. Afterburner factors not
used. Engines are common on F-15 & F-16 fighter aircraft, and may not reflect efficiencies
in comparison to Williams Int'l engines.
Jet Engine Emission Factors for HAPs (Source: U.S. Air Force IERA)
Acetaldehyde Acrolein Benzene Ethyl-benzene Formaldehyde Naphthalene Styrene Toluene Xylenes
F100 series 0.114 0.079 0.041 0.003 0.455 0.027 0.003 0.010 0.023
The “Afterburner” or AB-5 power setting is not considered because that application applies to military aircraft, and Williams does not use that power setting in its testing processes.
HAP Emissions (lbs/ yr)
NOx*CO SO2*VOC **PM10 ***
Total HAP's (lbs/yr):
Total HAP's (tons/yr):
Pollutant Emission Factor (lbs/1000 lbs)
Average Pollutant Emission Factor (lbs/1000 lbs)
Table Note: Engines in the test process are assumed to spend an average of approximately 40 percent of their total operating time in idle, and the remainder in conditions of 80 percent
of thrust or better. average HAP emission factors have been calculated using these approximate weighting percentages.
Annual Fuel
Throughput
(gallons)
Annual Fuel
Throughput
(gallons)
Engine Type
Engine Type
Williams Int'l 8/1/2024
Williams International, Ogden, Utah
Notice of Intent for Updated Approval Order AN0109740006-09 Table 5: Potential Acetaldehyde Emissions from Jet Fuel CombustionEmission Calculations
NOTE: Following calculations are used to estimate potential maximum hourly emission rate
Engine Type Suitable Test Cell
Type 1 Cells 01, 03 , 04
Type 2 Cells 01, 03 , 04
Type 3 Cell 02
Type 4 Cell 05
Acetaldehyde Emission Factor Average Emission Factor
(lbs/ 1000 lbs of jet fuel)(lbs/ 1000 lbs of jet fuel)
Idle 0.2 40%
Approach 0.15
Inter 8.00E-03
Military 1.10E-02
AB-5 (Afterburner)1.30E-02 N/A
Engine Type Suitable Test Cell Jet fuel used per engine per run (gal)Run Duration (min)
Type 1 Cells 01, 03 , 04 14.9 22.2
Type 2 Cells 01, 03 , 04 31.2 16
Type 3 Cell 02 Only 29.2 50
Type 4 Cell 05 Only 279.7 149
Type 4 Cell 05 Only 279.7 239
Type 4 Cell 05 Only 279.7 164
Note: Engine-specific fuel usage and run duration information provided by Williams International - for confidential use only
Hourly Jet Fuel Usage Hourly Jet Fuel Usage Acetaldehyde Emission Factor Acetaldehyde Emission Rate
(gal/hr)(lbs/hr)(lbs/1000 lbs)(lbs/hr)
Type 1 Cells 01, 03 , 04 40.27 271.82 0.031
Type 2 Cells 01, 03 , 04 117.00 789.75 0.090
Type 3 Cell 02 Only 35.04 236.52 0.027
Type 4 Cell 05 Only 112.63 760.26 0.087
Type 4 Cell 05 Only 70.22 473.97 0.054
Type 4 Cell 05 Only 102.33 690.72 0.079
Hourly Jet Fuel Usage = Jet fuel used per engine per run x Run duration / 60
Engine-specific emission rate = Acetaldehyde emission factor x hourly jet fuel usage
Acetaldehyde Emission Rate
(lbs/hr)
Cell 01 Type 1 0.031
Cell 02 Type 3 0.027
Cell 03 Type 2 0.090
Cell 04 Type 1 0.031
Cell 05 Type 4 0.087
Total lb/hr =0.265
Total emission rate reflects maximum hourly emission rate when all five test cells are testing engines simultaneously
1.14E-0160%
Note: Emission Factors Source (Attachment 2): United States Air Force IERA’s Air Emissions Inventory Guidance Document for Mobile
Sources at Air Force Installations (revised December 2003), Publication No.: IERA-RS-BR-SR-2001-0010
Suitable Test Cell
1.14E-01
Engine Type
Test Cell Engine Type
Power Setting Approximate % of testing time at this setting
Williams Int'l 8/1/2024
Plasma Spray Emissions/Material Use & Usage Rates
Nickel Chromium Aluminum Yttrium Cobalt Tungsten Iron Silicon Manganese Calcium Fluo Glass Oxide Silicon DioxidTiO2 MolybdenumPolyimide Zirconium Di Yttrium Oxid Hafnium
7440020 7440473 7429905 7440655 7440484 7440337 7439896 7440213 7439965 7789755 65997173 7631869 13463677 7439987 75127 1314234 1314369 12055231
Material Lbs/Yr TE CE Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent
Amdry 961 10 25.00%99.90%77.00%17.00%6.00%0.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 81NS 3600 25.00%99.90%18.00%74.33%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
X-40 25 25.00%99.90%10.00%20.00%0.00%0.00%45.00%7.50%1.00%0.60%0.60%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Durabrade 2445 4000 25.00%99.90%33.50%9.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%36.00%21.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 136F 250 25.00%99.90%0.00%91.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%5.00%3.00%0.00%0.00%0.00%0.00%0.00%
CWIMS 794 200 25.00%99.90%15.50%72.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Amdry 962 900 25.00%99.90%67.00%22.00%10.00%1.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 450NS 10000 25.00%99.90%94.00%0.00%4.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 447NS 200 25.00%99.90%86.00%0.00%6.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%6.00%0.00%0.00%0.00%0.00%
Amdry 99/Metco 56C 300 25.00%99.90%99.75%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Metco 480NS 300 25.00%99.90%95.50%0.00%4.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Amdry 949 5000 25.00%99.90%0.00%0.00%56.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%40.00%0.00%0.00%0.00%
Metco 601NS 1500 25.00%99.90%0.00%0.00%53.00%0.00%0.00%0.00%0.00%7.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Metco 204B-NS 3200 25.00%99.90%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%88.00%11.25%0.95%
Metco 204C-NS 25.00%99.90%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%89.00%10.25%0.95%
29485 Lbs/Yr
Nickel Chromium Aluminum Yttrium Cobalt Tungsten Iron Silicon Manganese Calcium Fluo Glass Oxide Silicon DioxidTiO2 MolybdenumPolyimide Zirconium Di Yttrium Oxid Hafnium
Material Lbs/Yr TE CE HAP HAP HAP HAP
Amdry 961 10 25.00%99.90%0.005775 0.001275 0.00045 0.0000375 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 81NS 3600 25.00%99.90%0.486 2.00691 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
X-40 25 25.00%99.90%0.001875 0.00375 0 0 0.008438 0.0014063 0.0001875 0.0001125 0.0001125 0 0 0 0 0 0 0 0 0
Durabrade 2445 4000 25.00%99.90%1.005 0.27 0 0 0 0 0 0 0 1.08 0.63 0 0 0 0 0 0 0
Sulzer Metco 136F 250 25.00%99.90%0 0.170625 0 0 0 0 0 0 0 0 0 0.009375 0.005625 0 0 0 0 0
CWIMS 794 200 25.00%99.90%0.02325 0.10875 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Amdry 962 900 25.00%99.90%0.45225 0.1485 0.0675 0.00675 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 450NS 10000 25.00%99.90%7.05 0 0.3375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 447NS 200 25.00%99.90%0.129 0 0.009 0 0 0 0 0 0 0 0 0 0 0.009 0 0 0 0
Amdry 99/Metco 56C 300 25.00%99.90%0.2244375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Metco 480NS 300 25.00%99.90%0.214875 0 0.010125 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Amdry 949 5000 25.00%99.90%0 0 2.11875 0 0 0 0 0 0 0 0 0 0 0 1.5 0 0 0
Metco 601NS 1500 25.00%99.90%0 0 0.59625 0 0 0 0 0.07875 0 0 0 0 0 0 0 0 0 0
Metco 204B-NS 3200 25.00%99.90%0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.112 0.27 0.0228
Metco 204C-NS 25.00%99.90%0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Lbs/Yr 9.5924625 2.70981 3.139575 0.0067875 0.008438 0.0014063 0.0001875 0.0788625 0.0001125 1.08 0.63 0.009375 0.005625 0.009 1.5 2.112 0.27 0.0228
Plasma Spray Emissions/Material Use & Usage Rates
At maximum feed rate of 25 grams/min Nickel Chromium Aluminum Yttrium Cobalt Tungsten Iron Silicon Manganese Calcium Fluo Glass Oxide Silicon DioxidTiO2 MolybdenumPolyimide Zirconium Di Yttrium Oxid Hafnium
7440020 7440473 7429905 7440655 7440484 7440337 7439896 7440213 7439965 7789755 65997173 7631869 13463677 7439987 75127 1314234 1314369 12055231
Material Lbs/Hr TE CE Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent Percent
Amdry 961 3.3 25.00%99.90%77.00%17.00%6.00%0.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 81NS 3.3 25.00%99.90%18.00%74.33%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
X-40 3.3 25.00%99.90%10.00%20.00%0.00%0.00%45.00%7.50%1.00%0.60%0.60%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Durabrade 2445 3.3 25.00%99.90%33.50%9.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%36.00%21.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 136F 3.3 25.00%99.90%0.00%91.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%5.00%3.00%0.00%0.00%0.00%0.00%0.00%
CWIMS 794 3.3 25.00%99.90%15.50%72.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Amdry 962 3.3 25.00%99.90%67.00%22.00%10.00%1.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 450NS 3.3 25.00%99.90%94.00%0.00%4.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Sulzer Metco 447NS 3.3 25.00%99.90%86.00%0.00%6.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%6.00%0.00%0.00%0.00%0.00%
Amdry 99/Metco 56C 3.3 25.00%99.90%99.75%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Metco 480NS 3.3 25.00%99.90%95.50%0.00%4.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Material Constituents in Percent by Weight
Material use in Lbs/Yr
Pounds/Year Emissions Based on Annual Use
Williams Int'l 8/1/2024
Amdry 949 3.3 25.00%99.90%0.00%0.00%56.50%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%40.00%0.00%0.00%0.00%
Metco 601NS 3.3 25.00%99.90%0.00%0.00%53.00%0.00%0.00%0.00%0.00%7.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
Metco 204B-NS 3.3 25.00%99.90%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%88.00%11.25%0.95%
Metco 204C-NS 25.00%99.90%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%89.00%10.25%0.95%
Nickel Chromium Aluminum Yttrium Cobalt Tungsten Iron Silicon Manganese Calcium Fluo Glass Oxide Silicon DioxidTiO2 MolybdenumPolyimide Zirconium Di Yttrium Oxid Hafnium
Material Lbs/Hr TE CE HAP HAP HAP HAP
Amdry 961 3.3 25.00%99.90%0.0019058 0.00042075 0.0001485 1.238E-05 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 81NS 3.3 25.00%99.90%0.0004455 0.001839668 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
X-40 3.3 25.00%99.90%0.0002475 0.000495 0 0 0.001114 0.0001856 2.475E-05 1.485E-05 0.00001485 0 0 0 0 0 0 0 0 0
Durabrade 2445 3.3 25.00%99.90%0.0008291 0.00022275 0 0 0 0 0 0 0 0.000891 0.0005198 0 0 0 0 0 0 0
Sulzer Metco 136F 3.3 25.00%99.90%0 0.00225225 0 0 0 0 0 0 0 0 0 0.0001238 7.425E-05 0 0 0 0 0
CWIMS 794 3.3 25.00%99.90%0.0003836 0.001794375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Amdry 962 3.3 25.00%99.90%0.0016583 0.0005445 0.0002475 2.475E-05 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 450NS 3.3 25.00%99.90%0.0023265 0 0.000111375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sulzer Metco 447NS 3.3 25.00%99.90%0.0021285 0 0.0001485 0 0 0 0 0 0 0 0 0 0 0.0001485 0 0 0 0
Amdry 99/Metco 56C 3.3 25.00%99.90%0.0024688 0 0 0 0 0 0 0 0 0 0 #REF!0 0 0 0 0 0
Metco 480NS 3.3 25.00%99.90%0.0023636 0 0.000111375 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Amdry 949 3.3 25.00%99.90%0 0 0.001398375 0 0 0 0 0 0 0 0 0 0 0 0.00099 0 0 0
Metco 601NS 3.3 25.00%99.90%0 0 0.00131175 0 0 0 0 0.0001733 0 0 0 0 0 0 0 0 0 0
Metco 204B-NS 3.3 25.00%99.90%0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.002178 0.0002784 2.351E-05
Metco 204C-NS 25.00%99.90%0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Lbs/Hr 0.0147572 0.007569293 0.003477375 3.713E-05 0.001114 0.0001856 2.475E-05 0.0001881 0.00001485 0.000891 0.0005198 #REF!7.425E-05 0.0001485 0.00099 0.002178 0.0002784 2.351E-05
Maximum Ni Lb/hr
Amdry 99/Metco 56C 0.002468813
Max Cr
Sulzer Metco 136F 0.00225225
Max Co
X-40 0.00111375
Max Mn
X-40 0.00001485
Pounds/Hr emissions at maximum feed rate of 25 grams/min
Williams Int'l 8/1/2024
Plasma Spray ETV Review
Relocated Plasma Spray
TLV/TWA
HAP CAS Number Lb/Yr Lb/Hr HAP Class mg/m3 <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m
Nickel 7440-02-0 0.002468813 Carcinogen 1.50 0.066 0.066 0.081 0.123 0.099 0.099 0.1215 0.1845 0.02494 0.02494 0.0203194 0.01338 FALSE FALSE FALSE FALSE
Chromium (CR+3)7440-47-3 0.00225225 Chronic 0.50 0.198 0.198 0.244 0.368 0.099 0.099 0.122 0.184 0.02275 0.02275 0.0184611 0.01224 FALSE FALSE FALSE FALSE
Cobalt 7440-48-4 0.00111375 Chronic 0.02 0.198 0.198 0.244 0.368 0.004 0.00396 0.00488 0.00736 0.28125 0.28125 0.2282275 0.15132 FALSE FALSE FALSE FALSE
Manganese 7439-96-5 0.00001485 Chronic 0.20 0.198 0.198 0.244 0.368 0.04 0.0396 0.0488 0.0736 0.00038 0.00038 0.0003043 0.0002 FALSE FALSE FALSE FALSE
HAPs x2
TLV/TWA
HAP CAS Number Lb/Yr Lb/Hr HAP Class mg/m3 <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m
Nickel 7440-02-0 0.004937625 Carcinogen 1.50 0.066 0.066 0.081 0.123 0.099 0.099 0.1215 0.1845 0.04988 0.04988 0.0406389 0.02676 FALSE FALSE FALSE FALSE
Chromium (CR+3)7440-47-3 0.0045045 Chronic 0.50 0.198 0.198 0.244 0.368 0.099 0.099 0.122 0.184 0.0455 0.0455 0.0369221 0.02448 FALSE FALSE FALSE FALSE
Cobalt 7440-48-4 0.0022275 Chronic 0.02 0.198 0.198 0.244 0.368 0.004 0.00396 0.00488 0.00736 0.5625 0.5625 0.4564549 0.30265 FALSE FALSE FALSE FALSE
Manganese 7439-96-5 0.0000297 Chronic 0.20 0.198 0.198 0.244 0.368 0.04 0.0396 0.0488 0.0736 0.00075 0.00075 0.0006086 0.0004 FALSE FALSE FALSE FALSE
TLV/TWA
HAPs x 3 CAS Number Lb/Yr Lb/Hr HAP Class mg/m3 <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m
Nickel 7440-02-0 0.007406438 Carcinogen 1.50 0.066 0.066 0.081 0.123 0.099 0.099 0.1215 0.1845 0.07481 0.07481 0.0609583 0.04014 FALSE FALSE FALSE FALSE
Chromium (CR+3)7440-47-3 0.00675675 Chronic 0.50 0.198 0.198 0.244 0.368 0.099 0.099 0.122 0.184 0.06825 0.06825 0.0553832 0.03672 FALSE FALSE FALSE FALSE
Cobalt 7440-48-4 0.00334125 Chronic 0.02 0.198 0.198 0.244 0.368 0.004 0.00396 0.00488 0.00736 0.84375 0.84375 0.6846824 0.45397 FALSE FALSE FALSE FALSE
Manganese 7439-96-5 0.00004455 Chronic 0.20 0.198 0.198 0.244 0.368 0.04 0.0396 0.0488 0.0736 0.00113 0.00113 0.0009129 0.00061 FALSE FALSE FALSE FALSE
Modeling Required?
Max Emissions ETF Vertically Unrestricted ETV (lb/Hr)Ratio of Emissions to ETV Modeling Required?
Max Emissions ETF Vertically Unrestricted Modeling Required?ETV (lb/Hr)Ratio of Emissions to ETV
Max Emissions ETF Vertically Unrestricted ETV (lb/Hr)Ratio of Emissions to ETV
Williams Int'l 8/1/2024
Nickel Plating ETV Review
TLV/TWA
HAP CAS Number Lb/Yr Lb/Hr HAP Class mg/m3 <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m
Nickel 7440-02-0 1.64 8.20E-04 Carcinogen 1.50 0.066 0.066 0.081 0.123 0.099 0.099 0.1215 0.1845 8.28E-03 8.28E-03 6.75E-03 4.44E-03 FALSE FALSE FALSE FALSE
Hydrogen Chloride 7647-01-0 8.60E+02 9.82E-02 Acute 7.00 0.154 0.154 0.224 0.31 1.078 1.078 1.568 2.17 9.11E-02 9.11E-02 6.26E-02 4.52E-02 FALSE FALSE FALSE FALSE
Aluminum Casting ETV Review
TLV/TWA
HAP CAS Number Lb/Yr Lb/Hr HAP Class mg/m3 <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m <20 m 21-50 m 51-100 m >100 m
Naphthalene 91-20-3 240.24 0.027425 Chronic 50.00 0.198 0.198 0.244 0.368 9.9 9.9 12.2 18.4 0.00277 0.00277 0.00225 0.00149 FALSE FALSE FALSE FALSE
Phenol 108-95-2 240.24 0.027425 Chronic 19.00 0.198 0.198 0.244 0.368 3.762 3.762 4.636 6.992 0.00729 0.00729 0.00592 0.00392 FALSE FALSE FALSE FALSE
Modeling Required?
Max Emissions ETF Vertically Unrestricted Modeling Required?ETV (lb/Hr)Ratio of Emissions to ETV
Max Emissions ETF Vertically Unrestricted ETV (lb/Hr)Ratio of Emissions to ETV
Williams Int'l 8/1/2024
Williams International, Ogden, Utah
Notice of Intent for Updated Approval Order AN0109740006-09 Table 6: VOC/HAP's FROM SITE CHEMICALS ASSUMING CONTROL EFFICIENCIES
Emission Calculations
Aerbraze AB215 10 49.73 497.3 35 174.1 50 87.0 27.35
Acetone 1000 6.59 6590.0 100 6590.0 0 6590.0
AD-1146 Adhesive Primer 250 7.51 1877.5 100 1877.5 0 1877.5 628.96 28.16
Bonderite M-CR 1200S Aero/Alodine 1200S 25.0 0 0.0 95 0.0 0.69
Daraclean 282 1000 8.59 8590.0 4.2 360.8 50 180.4 128.85
Isopropyl Alcohol 1500 6.55 9825.0 100 9825.0 0 9825.0
Lacquer Thinner 100 6.59 659.0 100 659.0 0 659.0 39.54 118.62 6.59 26.36
Lenium ES 3000 10.425 31275.0 100 31275.0 99 312.8 3.13
Lenium Super Booster 200 11.18 2236.0 100 2236.0 99 22.4 2.91
Deoxidizer 6/16 25.0 0 0.0 95 0.0 0.31 0.09
Magnaflux ZL37 penetrant 600 8 4800.0 8 384.0 50 192.0
HCl (Hydrochloric Acid)1650 9.81 16186.5 0 0.0 90 0.0 566.53
HF (Hydroflouric Acid)200 9.76 1952.0 0 0.0 90 0.0 93.70
Instapak Component A(Polymeric Isocyanate)350 10.34 3619.0 0 0.0 0 0.0 1.00
Toluene 55 7.5 412.5 100 412.5 0 412.5 412.50
Dychem Steel Blue Paint 50 8 400.0 95 380.0 0 380.0
Electro-Wash PX 20 5.81 116.2 100 116.2 0 116.2 1.74
Zyvax Sealer 1050 200 6.17 1234.0 100 1234.0 0 1234.0
Mold Release Frekote 1711 9.5 oz gal. cont.200 5.94 1188.0 97.68 1160.4 50 580.2
Frekote 1711 aerosol 100 5.94 594.0 91 540.5 0 540.5 5.94 5.94
Zyvax Surface Cleaner 200 6.99 1398.0 100 1398.0 0 1398.0 908.70
Solvent 142-66 750 6.59 4942.5 100 4942.5 50 2471.3
Stoner S412 Wax release 300 6.76 2028.0 30 608.4 0 608.4
Magnaflux ZL37 penetrant 600 8.26 4956.0 8 396.5 75 99.1 30.98
EEZ Foam Cutting Fluid 50 7.56 378.0 10 37.8 0 37.8
CRC Hydroforce Citrus Spray 50 8 400.0 95 380.0 0 380.0
Stoner Citrus Pattern Wash 600 8.17 4902.0 30 1470.6 0 1470.6
Magnaflux ZR10-E 300 7.8 2340.0 35 819.0 75 204.8
A500 Citrus Spray Cleaner 30 6.42 192.6 90 173.3 0 173.3
MR-11 Mold Release 30 5.67 170.1 93 158.2 0 158.2 1.70 1.70
Boeshield T-9 30 6 180.0 50 90.0 0 90.0
XTreme Cut 250C 4000 7.98 31920.0 1.3 415.0 50 207.5
Nickel Sulfamate (non-Ni emissions)300 10.43 3129.0 0 0.0 95 0.0 29.73
Woods Nickel Strike (non-Ni emissions)300 9.01 2703.0 0 0.0 95 0.0 6.76
Rustlick 606 500 6.82 3410.0 72 2455.2 95 122.8
Conathane TU-956 (Part A + Part B)500 8.93 4465.0 0.03 1.3 0 1.3
Voxeljet PDB-Binder Typ A 550 9.15 5032.5 0.1 5.03 0 5.0 5.03
Voxeljet PDB-Cleaner Typ A 500 7.9 3950.0 27 1066.5 0 1066.5
PEP SET 1000 Binder*500 9.1 4550.0
PEP SET 2000 Binder*400 9.68 3872.0 38.04 3432.0 0 3432.0 240.24
PEP SET 3501 Catalyst*600.0 240.24
6.03 240.24 1.00 1.00 47.18 128.85 603.01 93.79 2096.13 14.23 26.36 30.98 273.43 1.74
* Please see letter from ASK that lists the total VOC of the
PEP SET system as 38.04%34936.02 TOTAL Controlled HAPs (lbs)3563.98
17.47 TOTAL Controlled HAPs (tons)1.78
Control
Efficiency (%)
TOTAL Controlled VOC (lbs)
TOTAL Controlled VOC (tons)
PRODUCT/ CHEMICAL NAME Annual Usage
(gals)
Density
(lb/gal)
Annual
Usage (lbs)
VOC
CONTENT (%
by weight)
TOTAL VOCs
Uncontrolled
(lbs)
Transfer
Efficiency (%)
TOTAL VOCs
Controlled (lbs)
Controlled Emissions of HAPS (lbs)
1,2 Epoxy-
butane Naphthalene MDI Chromium (VI)
Oxide Ethyl benzene Methanol Triphenyl
Phospahte Phenol HexaneXylenes
Diethylene
Glycol Monobutyl
Ether
Hydrogen
Chloride
Hydrogen
Fluoride Toluene
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 TABLE 9: Summary of HAPs Emissions from Facility-wide OperationsFuture Emission Calculations
lbs/yr lbs/hr lbs/yr lbs/hr lbs/yr lbs/hr lbs/yr lbs/hr lbs/yr lbs/hr lbs/yr lbs/hr lbs/yr
x 1,2 Epoxybutane 106-88-7 unclassified 6.03 6.89E-04 6.03
x 4,4'-Diphenylmethane diisocyanate 101-68-8 chronic 1.00 1.14E-04 1.00
x Acetaldehyde 75-07-0 acute 153.63 2.65E-01 153.63
x Acrolein 107-02-8 chronic 105.98 1.21E-02 105.98
x Benzene 71-43-2 carcinogenic 2.73E-01 3.12E-05 55.22 6.30E-03 55.49
x Trivalent Chromium *trivalent*chronic 1.82E-01 2.08E-05 0.02 1.76E-06 59.19 6.76E-03 59.39
x Hexavalent Chromium *hexavalent*carcinogenic 1.00 1.14E-04 1.00
x Cobalt 7440-48-4 chronic 1.09E-02 1.25E-06 2.80E-03 3.20E-07 29.27 3.34E-03 29.28
x ethyl benzene 100-41-4 chronic 47.18 5.39E-03 3.69 4.21E-04 50.87
x Formaldehyde 50-00-0 acute 9.75E+00 1.11E-03 614.52 1.17E+00 624.27
x Glycol Ether (n.o.s.)*glycol ethers*unclassified 128.85 1.47E-02 128.85
x HCl acid 7647-01-0 acute 603.01 6.88E-02 8.60E+02 9.82E-02 1462.92
x Hydroflouric Acid 7664-39-3 acute 93.79 1.07E-02 93.79
x Manganese 7439-96-5 chronic 4.94E-02 5.64E-06 2.84 3.24E-04 0.39 4.46E-05 3.28
x Naphthalene 91-20-3 chronic 7.93E-02 9.05E-06 2.40E+02 2.74E-02 35.98 4.11E-03 276.29
x Nickel compounds *nickel*carcinogenic 2.73E-01 3.12E-05 0.01 1.12E-06 64.88 7.41E-03 1.64E+00 1.87E-04 65.16
x Styrene 100-42-5 chronic 3.43 3.91E-04 3.43
x Toluene 108-88-3 chronic 4.42E-01 5.05E-05 2096.13 2.39E-01 13.82 1.58E-03 2110.40
x Triphenyl Phosphate (Phosphorus compound)115-86-6 unclassified 30.98 3.54E-03 30.98
x Hexane 110-54-3 chronic 2.34E+02 2.67E-02 1.74 1.99E-04 235.74
x Methanol 67-56-1 chronic 26.36 3.01E-03 26.36
x Xylenes 1330-20-7 chronic 14.23 1.62E-03 31.32 3.58E-03 45.55
x Phenol 108-95-2 chronic 273.43 3.12E-02 273.43
x Arsenic 7440-38-2 carcinogenic 2.60E-02 2.97E-06 0.03
x Beryllium 7440-41-7 carcinogenic 1.56E-03 1.78E-07 0.00
x Cadmium 7440-43-9 carcinogenic 1.43E-01 1.63E-05 0.14
x Mercury 7439-97-6 chronic 3.38E-02 3.86E-06 0.03
Selenium 7782-49-2 chronic 3.12E-03 3.56E-07 0.00
Total 245.27 0.03 3563.98 0.41 1017.58 1.47 2.87 0.00 153.73 0.02 861.55 0.10 5843.34
For acute HAPs (Acetaldehyde and Formaldehyde), maximum hourly emission rate reflects simultaneous operation of all four engine test cells
Refer Table 5 for Acetaldehyde hourly emission rate; Refer Modeling Report dated May 22, 2008 for Formaldehyde hourly emission rate
For non-acute HAPs, hourly emission rate = annual emission rate (in pounds per year) / 8760 (hours/yr)
Plasma Spray Nickel Plating Total EmHAP Name CAS Number Type of HAP Natural Gas Combustion Chemical Usage Jet Fuel Usage Welding
Williams Int'l 8/1/2024
lbs/hr
6.89E-04
1.14E-04
2.65E-01
1.21E-02
6.33E-03
6.78E-03
1.14E-04
3.34E-03
5.81E-03
1.17E+00
1.47E-02
1.67E-01
1.07E-02
3.74E-04
3.15E-02
7.63E-03
3.91E-04
2.41E-01
3.54E-03
2.69E-02
3.01E-03
5.20E-03
3.12E-02
2.97E-06
1.78E-07
1.63E-05
3.86E-06
3.56E-07
2.02
missions
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 TABLE 10: ETV Calculations for HAPs from Facility-wide OperationsFuture Emission Calculations
Potential
Emissions
acute chronic carcinogenic < 20 m 21 - 50 m 51 - 100 m > 100 m < 20 m 21 - 50 m 51 - 100 m > 100 m
1,2 Epoxybutane 106-88-7 6.03 6.89E-04 unclassified 6.89E-04
4,4'-Diphenylmethane diisocyanate 101-68-8 1.00 1.14E-04 chronic 0.05 0.051 0.066 0.123 0.269 0.00255 0.0033 0.00615 0.01345 1.14E-04 4.48E-02 3.46E-02 1.86E-02 8.49E-03 No
Acetaldehyde 75-07-0 153.63 2.65E-01 acute 45 0.154 0.154 0.224 0.31 6.93 6.93 10.08 13.95 2.65E-01 3.83E-02 3.83E-02 2.63E-02 1.90E-02 No
Acrolein 107-02-8 105.98 1.21E-02 chronic 0.23 0.198 0.198 0.224 0.31 0.04554 0.04554 0.05152 0.0713 1.21E-02 2.66E-01 2.66E-01 2.35E-01 1.70E-01 No
Benzene 71-43-2 55.49 6.33E-03 carcinogenic 1.6 0.066 0.066 0.081 0.123 0.1056 0.1056 0.1296 0.1968 6.33E-03 6.00E-02 6.00E-02 4.89E-02 3.22E-02 No
Trivalent Chromium *trivalent*59.39 6.78E-03 chronic 0.5 0.198 0.198 0.224 0.31 0.099 0.099 0.112 0.155 6.78E-03 6.85E-02 6.85E-02 6.05E-02 4.37E-02 No
Hexavalent Chromium *hexavalent*1.00 1.14E-04 carcinogenic 0.05 0.066 0.066 0.081 0.123 0.0033 0.0033 0.00405 0.00615 1.14E-04 3.46E-02 3.46E-02 2.82E-02 1.86E-02 No
Cobalt 7440-48-4 29.28 3.34E-03 chronic 0.02 0.198 0.198 0.244 0.368 0.00396 0.00396 0.00488 0.00736 3.34E-03 8.44E-01 8.44E-01 6.85E-01 4.54E-01 No
Ethyl Benzene 100-41-4 50.87 5.81E-03 chronic 86.838 0.051 0.066 0.123 0.269 4.428738 5.731308 10.681074 23.359422 5.81E-03 1.31E-03 1.01E-03 5.44E-04 2.49E-04 No
Formaldehyde 50-00-0 624.27 1.17E+00 acute 0.368 0.154 0.154 0.224 0.31 0.056672 0.056672 0.082432 0.11408 1.17E+00 2.07E+01 2.07E+01 1.42E+01 1.03E+01 Yes
Glycol Ether (n.o.s.)*glycol ethers*128.85 1.47E-02 unclassified 1.47E-02
HCl acid 7647-01-0 1462.92 1.67E-01 acute 7 0.038 0.051 0.092 0.18 0.266 0.357 0.644 1.26 1.67E-01 6.28E-01 4.68E-01 2.59E-01 1.33E-01 No
Hydroflouric Acid 7664-39-3 93.79 1.07E-02 acute 0.41 0.038 0.051 0.092 0.18 0.01558 0.02091 0.03772 0.0738 1.07E-02 6.87E-01 5.12E-01 2.84E-01 1.45E-01 No
Hexane 110-54-3 235.74 2.69E-02 chronic 176.236 0.051 0.066 0.123 0.269 8.988036 11.631576 21.677028 47.407484 2.69E-02 2.99E-03 2.31E-03 1.24E-03 5.68E-04 No
Methanol 67-56-1 26.36 3.01E-03 chronic 278.446 0.051 0.066 0.123 0.269 14.200746 18.377436 34.248858 74.901974 3.01E-03 2.12E-04 1.64E-04 8.79E-05 4.02E-05 No
Manganese 7439-96-5 3.28 3.74E-04 chronic 0.2 0.051 0.066 0.123 0.269 0.0102 0.0132 0.0246 0.0538 3.74E-04 3.67E-02 2.84E-02 1.52E-02 6.96E-03 No
Naphthalene 91-20-3 276.29 3.15E-02 chronic 52.4 0.198 0.198 0.244 0.368 10.3752 10.3752 12.7856 19.2832 3.15E-02 3.04E-03 3.04E-03 2.47E-03 1.64E-03 No
Nickel compounds *nickel*65.16 7.63E-03 carcinogenic 1.5 0.066 0.066 0.081 0.123 0.099 0.099 0.1215 0.1845 7.63E-03 7.70E-02 7.70E-02 6.28E-02 4.13E-02 No
Styrene 100-42-5 3.43 3.91E-04 chronic 85.2 0.198 0.198 0.244 0.368 16.8696 16.8696 20.7888 31.3536 3.91E-04 2.32E-05 2.32E-05 1.88E-05 1.25E-05 No
Toluene 108-88-3 2110.40 2.41E-01 chronic 75.2 0.198 0.198 0.244 0.368 14.8896 14.8896 18.3488 27.6736 2.41E-01 1.62E-02 1.62E-02 1.31E-02 8.71E-03 No
Triphenyl Phosphate (Phosphorus compound)115-86-6 30.98 3.54E-03 unclassified 3.54E-03
Xylenes 1330-20-7 45.55 5.20E-03 chronic 434.1 0.051 0.066 0.123 0.269 22.1391 28.6506 53.3943 116.7729 5.20E-03 2.35E-04 1.81E-04 9.74E-05 4.45E-05 No
Phenol 108-95-2 273.43 3.12E-02 chronic 19.3 0.198 0.198 0.224 0.31 3.8214 3.8214 4.3232 5.983 3.12E-02 8.17E-03 8.17E-03 7.22E-03 5.22E-03 No
Arsenic 7440-38-2 0.03 2.97E-06 carcinogenic 0.01 0.066 0.066 0.081 0.123 0.00066 0.00066 0.00081 0.00123 2.97E-06 4.50E-03 4.50E-03 3.66E-03 2.41E-03 No
Beryllium 7440-41-7 0.00 1.78E-07 carcinogenic 0.00005 0.066 0.066 0.081 0.123 0.0000033 0.0000033 4.05E-06 6.15E-06 1.78E-07 5.40E-02 5.40E-02 4.40E-02 2.90E-02 No
Cadmium 7440-43-9 0.14 1.63E-05 carcinogenic 0.002 0.066 0.066 0.081 0.123 0.000132 0.000132 0.000162 0.000246 1.63E-05 1.24E-01 1.24E-01 1.01E-01 6.64E-02 No
Mercury 7439-97-6 0.03 3.86E-06 chronic 0.01 0.198 0.198 0.224 0.31 0.00198 0.00198 0.00224 0.0031 3.86E-06 1.95E-03 1.95E-03 1.72E-03 1.24E-03 No
Selenium 7782-49-2 0.00 3.56E-07 chronic 0.2 0.198 0.198 0.224 0.31 0.0396 0.0396 0.0448 0.062 3.56E-07 8.99E-06 8.99E-06 7.95E-06 5.74E-06 No
1. TLV, TSL Information for HAPs obtained from DAQ
2. Jet fuel, plasma spray emissions, and natural gas combustion vertically unrestricted; all others vertically restricted
3. ETV values from UDEQ Methodology for Estimating ETV's for HAPs
4. Lb/Hr emissions divided by ETV
5. If Ratio > 1, then "Yes", modeling required
> 100 m < 20 m
HAP Name CAS Number
Emissions from chemical
usages
Type of HAP (2)
TLV/ TWA (1)Ratio of Potential Emissions to ETV (4)
lbs/yr lbs/hr
(mg/m3)(m3 lb / mg hr)
UDAQ's Emission Threshold Factor (ETF) for Vertically Restricted/Unrestricted Sources (2)Emission Threshold Value (ETV) (3)
(lb/hr)
lb/hr < 20 m 21 - 50 m 51 - 100 m
Williams Int'l 8/1/2024
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
Yes Yes Yes
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
No No No
Modeling Required? (5)
21 - 50 m 51 - 100 m > 100 m
Williams Int'l 8/1/2024
Williams International, Ogden, UtahNotice of Intent for Updated Approval Order AN0109740006-09 TABLE 11: SUMMARY OF FACILITY-WIDE EMISSIONS (FUTURE CFuture Emission Calculations
lbs tons lbs tons lbs tons lbs tons lbs tons lbs tons
General chemical & material usage 34936.0 17.47 3564.0 1.78
Welding 82.4 0.04 2.9 0.00
Natural Gas-Fired Equipment 1233.3 0.62 13000.0 6.50 10920.0 5.46 715.0 0.36 245.3 0.12 78.0 0.04
Propane-Fired Equipment 5.6 0.00 104.0 0.05 60.0 0.03 8.0 0.00 12.0 0.01
Jet Engine Testing 3717.6 1.86 17280.0 8.64 10260.0 5.13 4122.6 2.06 1017.6 0.51 10786.5 5.39
Nickel Plating 861.6 0.43
Totals:5038.8 2.52 30384.0 15.19 21240.0 10.62 39781.6 19.89 5691.2 2.8 10876.5 5.44
Proposed Annual Emissions
Process Description PM10 NOx CO VOC HAPs SO2
Williams Int'l 8/1/2024
Williams Int'l 8/1/2024
Williams International, Ogden, Utah
Notice of Intent for Updated Approval Order AN0109740006-09 TABLE 12: Comparison of Proposed Facility-wide Emissions with 2009 AO
Future Emission Calculations
PM10 NOx CO VOCs SO2 HAPs
October 2008 AO 2.81 13.19 9.31 8.93 4.08 1.07
December 2009 AO 1.90 15.17 10.58 19.38 5.44 1.48
Proposed Emissions 2.52 15.19 10.62 19.89 5.44 2.85
Change from Oct 2008 AO -0.29 2.00 1.31 10.96 1.36 1.78
Change from Dec 2009 AO 0.62 0.02 0.04 0.51 0.00 1.37
2008 AO - DAQE-AN0109740005-08 issued October 13, 2008
2009 AO - DAQE-AN0109740006-09 issued December 3, 2009
Williams Int'l 8/1/2024
Williams International, Ogden, Utah
Notice of Intent for Approval OrderFuture Emission Calculations
1,2 Epoxybutane 5.92 6.03 0.11
4,4'-Diphenylmethane diisocyanate 8.90E-03 1.00 0.99
Acetaldehyde 154.17 153.63 -0.54
Acrolein 68.58 105.98 37.40
Benzene 55.49 55.49 0.00
Trivalent Chromium 1.42 59.39 57.97
Hexavalent Chromium 7.08 1.00 -6.08
Cobalt 5.30E-02 29.28 29.23
ethyl benzene 4.69 50.87 46.18
Formaldehyde 624.27 624.27 0.00
Glycol Ether (n.o.s.)118.28 128.85 10.57
HCl acid 184.60 1462.92 1278.32
HydroFlouric Acid 150.67 93.79 -56.88
Hydroquinone 379.97 0.00 -379.97
Isopropyl Benzene (Cumene)0.00 0.00 0.00
Manganese 2.89 3.28 0.39
Methanol 0.00 26.36 26.36
Naphthalene 36.06 276.29 240.23
Nickel compounds 17.44 65.16 47.72
Styrene 2.67 3.43 0.76
Toluene 139.94 2110.40 1970.46
Triphenyl Phosphate (Phosphorus compound)22.41 30.98 8.57
Xylenes 713.17 45.55 -667.62
Phenol 0.00 273.43 273.43
Arsenic 0.03 0.03 0.00
Beryllium 1.56E-03 1.56E-03 0.00
Cadmium 0.14 0.14 0.00
Mercury 0.03 0.03 0.00
Selenium 3.12E-03 3.12E-03 0.00
All emission values are in pounds/ year
2009 AO - DAQE-AN0109740006-09 issued December 3, 2009
HAP Name December 2009 AO Proposed Emissions Change from
December 2009 AO
Williams Int'l 8/1/2024
Based on Estimating Releases and Waste Treatment Efficiencies for the Toxic Chemical Release and Inventory Form
ppgs 6-4 & 6-5
W = Mw x K x A x P
RT
W Evaporation rate in lb/sec
MW Molecular weight of chemical
A Surface area of tank in sq. ft.
P Vapor pressure of chemical at temperature T in psia
R Universal gas constant (10.73 psia-ft3/R-lb mole)
T Temperature of liquid deg R
K gas phase mass transfer coefficient, ft/sec
K 0.00438(U)0.78(D/3.1x10-4)2/3
U Windspeed, miles/hr
D Diffusion coefficient for chemical in air, ft2/sec
If D is in cm2/sec, multiply by 1.08x10-3 to get ft2/sec
If D is not availble:
K 0.00438(U)0.78(18/MW)1/3
Hydrochloric Acid Emissions (HCl)
Based on worst case of 50% HCl
MW 36.46
A 4 ft2
P 17.4 psia
R 10.73 psia-ft3/R-lb-mole
T 536.7 R
U 0.355 miles/hr Based on 152ft3/min and 4ft2 tanks This is a typo, should be 125 cfm per ft tank surface area, based on Attachment 2 page 1.
D Not Available ft2/sec 125 cfm/ft tank surface area
31.25 ft/min
U7/8 0.40406 0.35511 miles/hr
K 0.001547008
W 0.00068169 lb/sec
2.45408579 lb/hr
0.049081716 lb/hr at 98% control efficiency
Because 2 tanks contain HCl:0.001363381 lb/sec
4.908171581 lb/hr
0.098163432 lb/hr at 98% control efficiency
Nitric Acid Emissions (HNO3)
Based on worst case of 50% HNO3
MW 63
A 4 ft2
P 0.008 psia
R 10.73 psia-ft3/R-lb-mole
T 536.7 R
U 0.355 miles/hr Based on 152ft3/min and 4ft2 tanks
D Not Available ft2/sec
U7/8 0.40406
K 0.001291546
W 4.52136E-07 lb/sec
0.001627689 lb/hr
3.25538E-05 lb/hr at 98% control efficiency
Because 2 tanks contain HNO3:9.04272E-07 lb/sec
0.003255378 lb/hr
6.51076E-05 lb/hr at 98% control efficiency
Sulfuric Acid Emissions (H2SO4)
Based on worst case of 30% H2SO4)
MW 98.08
A 4 ft2
P 2.00E-08 psia
R 10.73 psia-ft3/R-lb-mole
T 536.7 R
U 0.355 miles/hr Based on 152ft3/min and 4ft2 tanks
D Not Available ft2/sec
U7/8 0.40406
K 0.001113326
W 1.52E-12 lb/sec
5.46E-09 lb/hr
1.09E-10 lb/hr at 98% control efficiency
Because 2 tanks contain HsSO4:3.03E-12 lb/sec
1.09E-08 lb/hr
2.18E-10 lb/hr at 98% control efficiency
Williams Int'l 8/1/2024