DAQ-2025-001470

DAQE-AN122020004-25

{{$d1 }}

Eric Lewis
Align Precision
526 Aviation Way
Cedar City, UT 84721
[e-mail]

Dear Mr. Lewis:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-817-01 for Equipment
and Emission Updates
Project Number: N122020004

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on August
27, 2024. Align Precision must comply with the requirements of this AO, all applicable state
requirements (R307), and Federal Standards.

The project engineer for this action is Lucia Mason, 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:LBM:jg

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

Tim Davis
Interim Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

March 17, 2025

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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APPROVAL ORDER
DAQE-AN122020004-25
Administrative Amendment to Approval Order DAQE-817-01 for
Equipment and Emission Updates

Prepared By
Lucia Mason, Engineer
[phone]
[e-mail]

Issued to
Align Precision - Aircraft Parts Manufacturing Facility

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

March 17, 2025
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 ..................................................................................................................... 9
ACRONYMS ............................................................................................................................... 10

DAQE-AN122020004-25
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Align Precision Align Precision - Aircraft Parts Manufacturing Facility

Mailing Address Physical Address
526 Aviation Way 597 North 1500 West
Cedar City, UT 84721 Cedar City, UT 84721

Source Contact UTM Coordinates
Name: Eric Lewis 316,354 m Easting
Phone: [phone],173,035 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12
SIC code 3728 (Aircraft Parts & Auxiliary Equipment, NEC)

SOURCE INFORMATION
General Description
Align Precision manufactures and finishes aircraft parts. Machined parts are brought to the site by truck
then dipped into a series of tanks. All treatment tanks are in the same line, and each tank has a duct above
it, which leads to three (3) roof-mounted ceilcote scrubbers. Additionally, Align Precisions operates
several natural gas-heated paint booths that discharge into ambient air. The building also has a wastewater
treatment system which discharges into the same scrubber system as the chemical process lines.

NSR Classification
Administrative Amendment

Source Classification
Located in Attainment Area
Iron County
Airs Source Size: B

Applicable Federal Standards
None

DAQE-AN122020004-25
Page 4

Project Description
Align Precision is proposing the following changes in equipment to AO DAQE-817-01, dated October 4,
2001:

1) Removal of one (1) 2.52 MMBtu/hr natural gas boiler
To be replaced with one (1) 1.99 MMBtu/hr natural gas boiler (Equipment ID II.A.8)
2) Removal of two (2) Anodize/Alodine Chemical Process Lines
To be replaced with one (1) automated processing line (Equipment ID II.A.10)
3) Removal of one (1) wet scrubber associated with the wastewater treatment plant*
To be replaced with one (1) ceilcote wet scrubber (Equipment ID II.A.12)*
4) Removal of one (1) Zinc/Phosphate Descale Process Line
5) Removal of one (1) Sludge Drier

*Emissions from the wastewater treatment plant are now routed through the same three (3) wet scrubbers
(Equipment ID II.A.12) as emissions from the chemical process lines.

These changes qualify as a reduction in air pollutants and are thus exempt from the requirement to submit
a notice of intent and obtain an approval order prior to construction under R307-401-12.

Additionally, the facility underwent an ownership change from Metalcraft Technologies Inc. to Align
Precision in December of 2021. Documentation of this change has been included in the source file.

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 -273 8569.00
Carbon Monoxide -0.19 6.72
Nitrogen Oxides -0.23 9.14
Particulate Matter - PM10 -0.02 0.71
Particulate Matter - PM2.5 -0.02 0.71
Sulfur Dioxide 0 0.06
Volatile Organic Compounds 0 15.04

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Chromium Compounds (CAS #CMJ500) 0 3
Ethylene Glycol (CAS #107211) 0 810
Generic HAPs (CAS #GHAPS) 0 1638
Hexamethylene-1,6-Diisocyanate (CAS #822060) 0 10
Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 112
Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 18
Methyl Isobutyl Ketone (Hexone) (CAS #108101) 0 2000
Methylene Chloride (Dichloromethane) (CAS #75092) 0 1000
Toluene (CAS #108883) 0 1000
DAQE-AN122020004-25
Page 5

Xylenes (Isomers And Mixture) (CAS #1330207) 0 4000
Change (TPY) Total (TPY)
Total HAPs -2.50 5.30

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]
I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18]

SECTION II: PERMITTED EQUIPMENT
II.A THE APPROVED EQUIPMENT II.A.1 Align Precision Aircraft Part Manufacturing Facility
DAQE-AN122020004-25
Page 6

II.A.2 One (1) Enclosed Paint Booth Dimensions: 15x30x9 ft Filter Medium: Three-Stage Filter System Rating: 13,500 acfm
II.A.3 One (1) Open-Faced Paint Booth Dimensions: 28x11x9 ft Filter Medium: Three-Stage Filter System
Rating: 25,200 acfm
II.A.4 Three (3) Open-Faced Paint Booths Dimensions: 14x11x9 ft Filter Medium: Three-Stage Filter System Rating: 12,600 acfm
II.A.5 One (1) Walk-in Oven Fuel: Natural Gas
Rating: 0.70 MMBtu/hr
*Listed for informational purposes only
II.A.6 One (1) Bake Oven Fuel: Natural Gas Rating: 1.05 MMBtu/hr *Listed for informational purposes only
II.A.7 One (1) Make-up Air Heater Fuel: Natural Gas
Rating: 9.5 MMBtu/hr

II.A.8 Miscellaneous Boilers and Heaters Fuel: Natural Gas Rating: less than 5 MMBtu/hr each *Listed for informational purposes only
II.A.9 One (1) Passivation/Brass Bright Dip Process Line

II.A.10 One (1) Anodize/Alodine Chemical Process Line
II.A.11 One (1) Wastewater Treatment Plant
A. Chromium treatment tank

B. Neutralization tank 1
C. Neutralization tank 2

D. Flocculation tank

E. Clarifier

F. Filter press

G. Reject holding tank

H. Sand filter feed tank

I. Sand filter

DAQE-AN122020004-25
Page 7

II.A.12 Three (3) Ceilcote Wet Scrubbers Rating: 35,000 acfm Control for: - Passivation/Brass Bright Dip Chemical Process Line (Equipment ID II.A.9) - Anodize/Alodine Chemical Process Line (Equipment ID II.A.10) - Wastewater Treatment Plant (Equipment ID II.A.11)

SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS
II.B.1 Site-wide Requirements
II.B.1.a The owner/operator shall not exceed the following opacity limits from the listed point sources: A. Heaters and boilers - 10% B. Paint booth exhaust stacks - 5% C. Scrubber exhaust stacks - 15% D. All other points - 20%. [R307-401-8]
II.B.1.a.1 Opacity observations of emissions from stationary sources shall be conducted according to 40
CFR 60, Appendix A, Method 9. [R307-401-8]
II.B.1.b The owner/operator shall use only natural gas as fuel. [R307-401-8]
II.B.2 Ceilcote Wet Scrubber Requirements
II.B.2.a The owner/operator shall vent all emissions from the passivation/bright dip chemical process line (Equipment ID II.A.9), the anodize/alodine chemical process line (Equipment ID II.A.10) and the wastewater treatment plant (Equipment ID II.A.11) through wet scrubbers. [R307-401-8]
II.B.2.b The owner/operator shall:
A. Maintain a liquid flow through the ceilcote control scrubbers between 108 and 144
gallons per minute
B. Ensure the monitoring equipment is accurate to plus or minus 5 gallons per minute
C. Locate the monitoring equipment such that an inspector/operator can safely read the
output at any time. [R307-401-8]
II.B.3 Spray Booth Requirements
II.B.3.a The owner/operator shall equip spray booths with a set of paint arrestor particulate filters, or equivalent, to control particulate emissions. The owner/operator shall direct all air exiting the
booths through this control system before venting it to the atmosphere. [R307-401-8]

DAQE-AN122020004-25
Page 8

II.B.4 VOC & HAP Requirements II.B.4.a The owner/operator shall not emit more than the following from the spray booth operations:
A. 15.04 tons per rolling 12-month period of VOCs
B. 0.50 tons per rolling 12-month period for Toluene C. 2.00 tons per rolling 12-month period for Xylene
D. 2.50 tons per rolling 12-month period for Methyl Ethyl Ketone
E. 1.00 tons per rolling 12-month period for Methyl Isobutyl Ketone F. 2.84 pounds per rolling 12-month period for Chromium Compounds
G. 810.00 pounds per rolling 12-month period for Ethylene Glycol

H. 10.00 pounds per rolling 12-month period for Hexamethylene-1,6-diisocynate
I. 111.60 pounds per rolling 12-month period for Hydrochloric Acid (HCL)
J. 18.39 pounds per rolling 12-month period for Hydrofluoric Acid

K. 1000.00 pounds per rolling 12-month period for Methylene Chloride
L. 1638.00 pounds total per rolling 12-month period for all other HAPs
M. 5.30 tons per rolling 12-month period of all HAPs combined.

[R307-401-8]
II.B.4.a.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] HAP = [% HAP by Weight/100] x [Density] x [Volume Consumed] [R307-401-8]
II.B.4.a.2 The owner/operator shall use a mass-balance method to quantify any amount of VOCs and HAPs 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]

DAQE-AN122020004-25
Page 9

II.B.4.a.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]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-817-01 dated October 4, 2001 Is Derived From NOI dated August 27, 2024 Incorporates Additional Information dated August 27, 2024 Incorporates Additional Information dated August 29, 2024 Incorporates Additional Information dated October 24, 2024 Incorporates Additional Information dated October 31, 2024 Incorporates Additional Information dated November 21, 2024 Incorporates Additional Information dated December 16, 2024 Incorporates Additional Information dated January 3, 2025 Incorporates Additional Information dated February 24, 2025

DAQE-AN122020004-25
Page 10

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

DAQE-

RN122020004 March 12, 2025 Eric Lewis
Align Precision - Cedar City, LLC. 526 Aviation Way Cedar City, UT 84721
[e-mail] Dear Eric Lewis,
Re: Engineer Review - Administrative Amendment to Approval Order DAQE-817-01 for Equipment and Emission Updates Project Number: N122020004 The DAQ requests a company representative review and sign the attached Engineer Review (ER). This ER identifies all applicable elements of the New Source Review (NSR) permitting program. Align Precision - Cedar City, LLC. should complete this review within 10 business days of receipt. Align Precision - Cedar City, LLC. should contact Lucia Mason at [phone] if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Lucia Mason at [e-mail] the signed cover letter. Upon receipt of the signed cover letter, the DAQ will prepare an Approval Order (AO) for signature by the DAQ Director. If Align Precision - Cedar City, LLC. does not respond to this letter within 10 business days, the project will move forward without source concurrence. If Align Precision - Cedar City, LLC. has concerns that cannot be resolved and the project becomes stagnant, the DAQ Director may issue an Order prohibiting
construction. Approval Signature _____________________________________________________________
(Signature & Date)
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
Department of Environmental Quality
Tim Davis Interim Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION
Project Number N122020004 Owner Name Align Precision - Cedar City, LLC. Mailing Address 526 Aviation Way
Cedar City, UT, 84721 Source Name Align Precision - Cedar City, LLC.- Aircraft Parts
Manufacturing Facility Source Location 597 North 1500 West Cedar City, UT 84721
UTM Projection 316,354 m Easting, 4,173,035 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 3728 (Aircraft Parts & Auxiliary Equipment, NEC) Source Contact Eric Lewis Phone Number [phone] Email [e-mail] Billing Contact Eric Lewis
Phone Number [phone] Email [e-mail]
Project Engineer Lucia Mason, Engineer Phone Number [phone] Email [e-mail]
Notice of Intent (NOI) Submitted August 27, 2024 Date of Accepted Application November 21, 2024

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 2
SOURCE DESCRIPTION General Description
Align Precision - Cedar City, LLC (Align Precision) manufactures and finishes aircraft parts. Machined parts are brought to the site by truck then dipped into a series of tanks. All treatment tanks are in the same line and each tank has a duct above it which leads to three (3) roof-mounted
ceilcote scrubbers. Additionally, Align Precisions operates several natural gas heated paint booths that discharge into ambient air. The building also has a wastewater treatment system which discharges into the same scrubber system as the chemical process lines. NSR Classification: Administrative Amendment Source Classification Located in Attainment Area Iron County Airs Source Size: B
Applicable Federal Standards None
Project Proposal Administrative Amendment to Approval Order DAQE-817-01 for Equipment and Emission
Updates Project Description Align Precision - Cedar City, LLC (Align Precision) is proposing the following changes in equipment to AO DAQE-817-01, dated October 4, 2001:
- Removal of one (1) 2.52 MMBtu/hr natural gas boiler To be replaced with one (1) 1.99 MMBtu/hr natural gas boiler (Equipment ID II.A.8) - Removal of two (2) Anodize/Alodine Chemical Process Lines To be replaced with one (1) automated processing line (Equipment ID II.A.10) - Removal of one (1) wet scrubber associated with the wastewater treatment plant* To be replaced with one (1) ceilcote wet scrubber (Equipment ID II.A.12)* - Removal of one (1) Zinc/Phosphate Descale Process Line - Removal of one (1) Sludge Drier
*Emissions from the wastewater treatment plant are now routed through the same three (3) wet scrubbers (Equipment ID II.A.12) as emissions from the chemical process lines.
These changes qualify as a reduction in air pollutants and are thus exempt from the requirement to submit a notice of intent and obtain an approval order prior to construction under R307-401-12. Additionally, the facility underwent an ownership change from Metalcraft Technologies Inc. to Align Precision - Cedar City LLC in December of 2021. Documentation of this change has been included in the source file.
EMISSION IMPACT ANALYSIS This is an administrative amendment that decreases emissions at the facility. Therefore, modeling is not
required per R307-410-4 and R307-410-5. [Last updated February 25, 2025]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 3
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 -273 8569.00 Carbon Monoxide -0.19 6.72
Nitrogen Oxides -0.23 9.14
Particulate Matter - PM10 -0.02 0.71
Particulate Matter - PM2.5 -0.02 0.71
Sulfur Dioxide 0 0.06
Volatile Organic Compounds 0 15.04 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Chromium Compounds (CAS #CMJ500) 0 3
Ethylene Glycol (CAS #107211) 0 810
Generic HAPs (CAS #GHAPS) 0 1638
Hexamethylene-1,6-Diisocyanate (CAS #822060) 0 10
Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 112 Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 18 Methyl Isobutyl Ketone (Hexone) (CAS #108101) 0 2000
Methylene Chloride (Dichloromethane) (CAS #75092) 0 1000
Toluene (CAS #108883) 0 1000
Xylenes (Isomers And Mixture) (CAS #1330207) 0 4000
Change (TPY) Total (TPY) Total HAPs -2.50 5.30 Note: Change in emissions indicates the difference between previous AO and proposed modification.

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 4
Review of BACT for New/Modified Emission Units 1. BACT review regarding Administrative Amendment
This is an administrative amendment. The requested changes result in a decrease in emissions, therefore, a BACT analysis isn't required. [Last updated January 15, 2025]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 5
SECTION I: GENERAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the AO. (New or Modified conditions are indicated as “New” in the Outline Label):
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]

I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is
discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 6
SECTION II: PERMITTED EQUIPMENT The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label): II.A THE APPROVED EQUIPMENT
II.A.1 NEW Align Precision - Cedar City, LLC. Aircraft Part Manufacturing Facility
II.A.2 NEW One (1) Enclosed Paint Booth Dimensions: 15x30x9 ft Filter Medium: Three Stage Filter System Rating: 13,500 acfm

II.A.3
NEW
One (1) Open Faced Paint Booth
Dimensions: 28x11x9 ft Filter Medium: Three Stage Filter System Rating: 25,200 acfm

II.A.4 NEW Three (3) Open Faced Paint Booths Dimensions: 14x11x9 ft Filter Medium: Three Stage Filter System
Rating: 12,600 acfm
II.A.5 NEW One (1) Walk-in Oven Fuel: Natural Gas
Rating: 0.70 MMBtu/hr *Listed for informational purposes only

II.A.6 NEW One (1) Bake Oven Fuel: Natural Gas Rating: 1.05 MMBtu/hr *Listed for informational purposes only

II.A.7
NEW
One (1) Make-up Air Heater
Fuel: Natural Gas Rating: 9.5 MMBtu/hr

II.A.8
NEW
Miscellaneous Boilers and Heaters
Fuel: Natural Gas Rating: less than 5 MMBtu/hr each *Listed for informational purposes only

II.A.9 NEW One (1) Passivation/Brass Bright Dip Chemical Process Line
II.A.10 NEW One (1) Anodize/Alodine Chemical Process Line

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 7
II.A.11 NEW One (1) Wastewater Treatment Plant A. Chromium treatment tank B. Neutralization tank 1
C. Neutralization tank 2 D. Flocculation tank E. Clarifier
F. Filter press G. Reject holding tank H. Sand filter feed tank
I. Sand filter
II.A.12 NEW Three (3) Ceilcote Wet Scrubbers Rating: 35,000 acfm
Control for: - Passivation/Brass Bright Dip Chemical Process Line (Equipment ID II.A.9) - Anodize/Alodine Chemical Process Line (Equipment ID II.A.10)
- Wastewater Treatment Plant (Equipment ID II.A.11)

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 8
SECTION II: SPECIAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label): II.B REQUIREMENTS AND LIMITATIONS
II.B.1 NEW Site-wide Requirements
II.B.1.a NEW The owner/operator shall not exceed the following opacity limits from the listed point sources: A. Heaters and boilers - 10%
B. Paint booth exhaust stacks - 5%
C. Scrubber exhaust stacks - 15%
D. All other points - 20% [R307-401-8]
II.B.1.a.1 NEW Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8] II.B.1.b NEW The owner/operator shall use only natural gas as fuel. [R307-401-8] II.B.2 NEW Ceilcote Wet Scrubber Requirements
II.B.2.a NEW The owner/operator shall vent all emissions from the passivation/bright dip chemical process line (Equipment ID II.A.9), the anodize/alodine chemical process line (Equipment ID II.A.10) and the wastewater treatment plant (Equipment ID II.A.11) through wet scrubbers. [R307-401-8]

II.B.2.b NEW The owner/operator shall:
A. Maintain a liquid flow through the ceilcote control scrubbers between 108 and 144
gallons per minute
B. Ensure the monitoring equipment is accurate to plus or minus 5 gallons per minute
C. Locate the monitoring equipment such that an inspector/operator can safely read the
output at any time [R307-401-8] II.B.3 NEW Spray Booth Requirements
II.B.3.a NEW The owner/operator shall equip spray booths with a set of paint arrestor particulate filters, or equivalent, to control particulate emissions. The owner/operator shall direct all air exiting the
booths through this control system before venting it to the atmosphere. [R307-401-8]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 9
II.B.4 NEW VOC & HAP Requirements
II.B.4.a NEW The owner/operator shall not emit more than the following from the spray booth operations: A. 15.04 tons per rolling 12-month period of VOCs
B. 0.50 tons per rolling 12-month period for Toluene
C. 2.00 tons per rolling 12-month period for Xylene
D. 2.50 tons per rolling 12-month period for Methyl Ethyl Ketone E. 1.00 tons per rolling 12-month period for Methyl Isobutyl Ketone F. 2.84 pounds per rolling 12-month period for Chromium Compounds G. 810.00 pounds per rolling 12-month period for Ethylene Glycol H. 10.00 pounds per rolling 12-month period for Hexamethylene-1,6-diisocynate
I. 111.60 pounds per rolling 12-month period for Hydrochloric Acid (HCL)
J. 18.39 pounds per rolling 12-month period for Hydrofluoric Acid
K. 1000.00 pounds per rolling 12-month period for Methylene Chloride L. 1638.00 pounds total per rolling 12-month period for all other HAPs M. 5.30 tons per rolling 12-month period of all HAPs combined [R307-401-8] II.B.4.a.1 NEW 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] HAP = [% HAP by Weight/100] x [Density] x [Volume Consumed]
[R307-401-8]
II.B.4.a.2 NEW The owner/operator shall use a mass-balance method to quantify any amount of VOCs and HAPs 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]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 10
II.B.4.a.3 NEW 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]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 11
PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the
following documents: Supersedes AO DAQE-817-01 dated October 4, 2001
Is Derived From NOI dated August 27, 2024 Incorporates Proof of Name Change dated August 27, 2024 Incorporates Emission Calculation Spreadsheet dated August 29, 2024 Incorporates Tank Use Record dated October 24, 2024 Incorporates New Natural Gas Boiler Specifications dated October 31, 2024 Incorporates SDSs and New Wet Scrubber Specifications dated November 21, 2024 Incorporates Additional Emission Estimate Information dated December 16, 2024 Incorporates VOC and HAP Emission Limit Clarification dated January 3, 2025 Incorporates Process Clarification dated February 24, 2025
REVIEWER COMMENTS
1. Comment regarding Administrative Amendment Request: Changes to equipment include: - Removal of one (1) 2.52 MMBtu/hr natural gas boiler (AO DAQE-817-01, ID 8.H)
To be replaced with one (1) 1.99 MMBtu/hr natural gas boiler (new ID II.A.8) - Removal of two (2) Anodize/Alodine Chemical Process Lines (AO DAQE-817-01, ID 8.L) To be replaced with one (1) automated processing line (new ID II.A.10)
- Removal of one (1) wet scrubber for the wastewater treatment plant (AO DAQE-817-01, ID 8.Q)* To be replaced with one (1) ceilcote wet scrubber (Equipment ID II.A.12)* - Removal of one (1) Zinc/Phosphate Descale Process Line (AO DAQE-817-01, ID 8.M)
- Removal of one (1) Sludge Drier (AO DAQE-817-01, ID 8.P.vii) *Emissions from the wastewater treatment plant are now routed through the same three (3) wet scrubbers (Equipment ID II.A.12) as emissions from the chemical process lines.
The boiler replacement, the anodize/alodine chemical process line replacement, and the removal of
the zinc/phosphate descale process line results in a decrease in emissions. The ceilcote wet scrubber replacement and the removal of the sludge drier do not impact the site's emissions. Therefore, these changes qualify as a reduction in air pollutants and are exempt from the requirement to submit a
notice of intent (NOI) and obtain an AO prior to construction under R307-401-12.
The NOI originally submitted by the source included the removal of the natural gas boiler and the replacement of the anodize/alodine chemical process lines. On December 12, 2024, the source confirmed the zinc/phosphate descale process line (AO DAQE-817-01, ID 8.M) and the sludge drier
associated with the wastewater treatment plant (AO DAQE-817-01, ID 8.P.vii) were no longer on site. The source amended their original NOI to include the removal of these pieces of equipment. [Last updated February 25, 2025] 2. Comment regarding Permit Language and Contact Information Updates: The language and format of this AO have been updated to reflect the style of modern permits. PTE values and the approved equipment list have been moved to respective new sections. All contact information has been updated.

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 12
This facility underwent an ownership change from Metalcraft Technologies, Inc to Align Precision - Cedar City, LLC in December of 2021. Documentation of the change has been included in the
source file. The natural gas fired boilers and heaters listed in Equipment IDs 8.D, 8.G, 8.H, 8.I, and 8.O in AO DAQE-817-01 have been combined into a single equipment item (II.A.8). [Last updated February 25, 2025] 3. Comment regarding Emission Estimates: HAP & VOC Emissions: The boiler replacement, the anodize/alodine chemical process line replacement, and the removal of
the zinc/phosphate process line result in a decrease in HAP and VOC emissions. However, with the exception of ethylene glycol (explained below), condition 15 in AO DAQE-817-01 (equivalent to condition II.B.4.a) sets HAP and VOC limits from paint booth operations that are equivalent to the site's cumulative HAP and VOC PTE listed in the 2001 AO. The reductions in HAP and VOC emissions resulting from this administrative amendment were not subtracted from the site's cumulative emissions as the subtractions would have resulted in PTE values less than the HAP and
VOC limits set for the paint booth operations in condition II.B.4.a. In the 2001 AO, the PTE for ethylene glycol (0.005 tpy or 10 lb/year) is lower than the limit for ethylene glycol listed in condition 15 (0.405 tpy or 810 lb/year). The emissions listed in condition 15 are enforceable and thus reflect the greatest emissions the site can emit. Therefore, the ethylene
glycol value was listed in condition 15 (equivalent to II.B.4.a) was listed as the site's PTE value in the Summary of Emissions table. AO DAQE-817-01, dated October 4, 2001, lists methyl ethyl ketone as a HAP. The EPA removed methyl ethyl ketone from the list of HAPs in December of 2005. The emissions from methyl ethyl ketone listed in AO DAQE-817-01 (2.500 tpy) have been removed from the HAPs listed in the Summary of Emissions table. This results in the change in total HAP emissions both in the site's total PTE and in condition II.B.4.a. Methyl ethyl ketone was not subtracted from the site's VOC emissions.
PM2.5 Emissions:
The PTE for PM2.5 was not specified in the previous AO. For a conservative estimate, before the boiler replacement, PM2.5 was set equal to PM10 (0.73 tpy). CO2e Emission: The PTE for CO2e was not included in the previous AO. CO2e emissions were calculated based on
the following natural gas emission units: (1) 1.0 MMBtu/hr heater (II.A.8 and AO DAQE-817-01 8.D), one (1) 0.7 MMBtu/hr walk-in oven (II.A.5), one 1.05 MMBtu/hr bake oven (II.A.6), three (3) boilers rated 1.05, 0.1875 and 1.993 MMBtu/hr respectively (II.A.8 and AO DAQE-817-01 8.F,
8.G), and one (1) 9.5 MMBtu/hr make-up air heater (II.A.7). Calculations assumed 8,760 annual operational hours. CO2e emission factors and global warming potentials were sourced from AP-42 Table 1.4-2 and A-1 to Subpart A of 40 CFR Part 98. There are no other changes to the emission
estimates at this time. [Last updated February 25, 2025]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 13
4. Comment regarding Source Calculations and DAQ Acceptance: Changes in VOC and HAP emissions have not been subtracted from the site's PTE due to condition
II.B.4.a (see "VOC & HAP Emissions" under review comment #3). Calculations associated with changes in VOC and HAP emissions have been included below to demonstrate compliance with UAC R307-401-12 (Reduction in Air Pollutants).
Boiler Emissions:
Existing boiler rating: 2.2 MMBtu/hr (subtracted for PTE) Replacement boiler rating: 1.993 MMBtu/hr (added to PTE) Operational Hours: 8,760 Fuel: Natural gas (heating value: 1020 MMBtu/MMscf, AP-42 1.4) Emission Factors: NOx, CO: AP-42 Table 1.4-1 PM10, PM2.5, S02, VOC*, Lead: AP42 Table 1.4-2 HAPs*: AP-42 Tables 1.4-3 and 1.4-4 CO2, Methane, N2O, CO2e Global Warming Potentials: Ap-42 Table 1.4-2 & Table A-1 to Subpart A of Part 98 Emissions from existing boiler- NOx: 1.08 tpy, CO: 0.91 tpy, PM10: 0.08 tpy, PM2.5: 0.08 tpy, SO2: 0.01 tpy, VOC: 0.06 tpy, HAPs 0.02 tpy Emissions from replacement boiler- NOx: 0.86 tpy, CO: 0.72 tpy, PM10: 0.07 tpy, PM2.5: 0.07 tpy, SO2: 0.01 tpy, VOC: 0.05 tpy, HAPs 0.02 tpy
Change in emissions from boiler replacement: NOx: -0.23 tpy, CO: -0.19 tpy, PM10: -0.02 tpy, PM2.5: -0.02 tpy, VOC: -0.01 tpy
-------------------------------------------------------------------------------------------------------------------------
Anodize/Alodine Chemical Process Line Emissions: Wt %, density: SDS Annual Usage (AU): Align Precision 2024 Tank Use Records
Products used in existing process line and pollutants produced: Control efficiency (90%), evaporation rate (1%): 1999 Projected Emission Calculations Novacoat 1100, Sodium Bichromate: 5 wt%, Chromic Acid: 10 wt%, UA: 3 gal/year, density: 9.49 lb/gal, source provided values Alodine 1200s, Chromic Acid: 60 wt%, AU: 261 lb/year, source provided values Chromic Acid Flake, Chromic Acid: 100 wt%, AU: 1.23 lb/year, source provided values Controlled chromium emissions from existing process lines: 0.20 lb/year Products used in replacement process line and pollutants produced: Control efficiency: 90%, source provided value: 1999 Projected Emission Calculations Control efficiency (90%), evaporation rate (1%): 1999 Projected Emission Calculations Chromic Acid Flake, Chromic Acid: 100 wt%, AU: 6.7 lb/year, SDS Chromic Acid Flake, Sodium Chromate: 100 wt%, AU: 5.2 lb/year, SDS Alodine 600, Chromium (VI) Oxide: 40 wt%, AU: 189.5 lb/year, SDS
Chromium compound emissions from replacement process line: 0.09 lb/year
Change in chromium compound emissions: 0.11 lb/year or -0.0001 tpy

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 14
------------------------------------------------------------------------------------------------------------------------- Zinc/Phosphate Descale Process Line Emissions:
The zinc/phosphate descale process line and two wet packed tower scrubbers were added to the AO through DAQE-098-00, dated February 22, 2000. The wet scrubbers don't contribute to emissions, therefore the emission change documented in the 2000 AO are the emissions from the zinc/phosphate descale process line. Change in emissions: VOC: -87.50 lb/year or -0.04 tpy, HAPs: -130.55 lb/year or -0.06 tpy
------------------------------------------------------------------------------------------------------------------------- Sludge Drier Emissions: The sludge drier only emits water vapor. The removal of the sludge drier results in no emission
change.
[Last updated February 25, 2025] 5. Comment regarding Compliance Notes: The source should take note of condition I.8 which states that the DAQ must be notified when the new/replacement equipment is installed. [Last updated February 25, 2025] 6. Comment regarding Federal Standard Applicability: NSPS, 40 CFR 60 There are no applicable NESHAP subparts. NESHAP, 40 CFR 61 There are no applicable NESHAP subparts.
MACT, 40 CFR 63 MACT Subpart N (National Emission Standards for Chromium Emissions From Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks) applies to each chromium electroplating or chromium anodizing tank at facilities performing hard chromium electroplating, decorative chromium electroplating, or chromium anodizing. The facility operates an anodizing/alodine chemical process line. However, the line does not include an electropolish tank. Therefore, MACT Subpart N does not apply. [Last updated February 6, 2025] 7. Comment regarding Title V Applicability: Title V of the 1990 Clean Air Act (Title V) applies to the following: 1. Any major source 2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act,
Standards of Performance for New Stationary Sources; 3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous Air Pollutants.
4. Any Title IV affected source. This facility is not a major source and is not a Title IV source. The facility is not subject to 40 CFR 60 (NSPS), 40 CFR 61 (NESHAP) or 40 CFR 63 (MACT) regulations. Therefore, Title V does not apply to this facility.

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 15
[Last updated February 6, 2025]

Engineer Review N122020004: Align Precision - Cedar City, LLC.- Aircraft Parts Manufacturing Facility March 12, 2025 Page 16
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 EPA 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 - 40 CFR 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 UDAQ use EPA Environmental Protection Agency
FDCP Fugitive dust control plan GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i) GWP Global Warming Potential - 40 CFR Part 86.1818-12(a)
HAP or HAPs Hazardous air pollutant(s) ITA Intent to Approve LB/HR Pounds per hour
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

Alan Humpherys
DAQ Minor New Source Review Program
195 North 1950 West, Salt Lake City, UT 84116

DAQE-817-01 Reduction in Air Pollutants Notification Letter

Mr. Humpherys,

ALIGN PRECISION – Cedar City, LLC. (formerly Metalcraft Technologies, Inc.) has developed a project to update
some of the equipment at our Plant 2 site located at 597 N 1500 W, Cedar City, UT 84721 (formerly Metalcraft
Technologies East, Cedar City, Utah). This project will improve the equipment infrastructure within the building,
increase our production capacity, and reduce our potential chromium compound emissions.

The project involves the replacement of some of our older equipment with new equipment. Namely, we will be
replacing our automated and manual chemical processing lines with a larger automated one. Some of the manual
chemical processing tanks will be completely removed from service while others will remain in place but locked out
and tagged out from use. We will also be locking out and tagging out a boiler and a wet scrubber from use to be
replaced with a new boiler and wet scrubber.

Our calculations show that these changes will produce a reduction in our potential chromium compound emission
rate from 2.02 to 0.88 (pounds per year) and a reduction in our controlled emission rate of chromium compounds
from 0.2 to 0.09 (pounds per year).

Please do not hesitate to reach out with any questions,

ERIC LEWIS
EHS Coordinator

O: 435.586.3871
[e-mail]

SUMMARY
Criteria Pollutant Old Boiler (tpy)New Boiler (tpy)
NOX 1.08 0.86
CO 0.91 0.72
PM10 0.08 0.07
PM2.5 0.08 0.07
SO2 0.01 0.01
VOC 0.06 0.05
Lead 0.00 0.00
HAP 0.0204 0.0162
Hazardous Air Pollutant Old Boiler (tpy)New Boiler (tpy)
2-Methylnaphthalene 2.60E-07 2.05E-07
3-Methylchloranthrene 1.95E-08 1.54E-08
7,12-Dimethylbenz(a)anthracene 1.73E-07 1.37E-07
Acenaphthene 1.95E-08 1.54E-08
Acenaphthylene 1.95E-08 1.54E-08
Anthracene 2.60E-08 2.05E-08
Benz(a)anthracene 1.95E-08 1.54E-08
Benzene 2.27E-05 1.80E-05
Benzo(a)pyrene 1.30E-08 1.03E-08
Benzo(b)fluoranthene 1.95E-08 1.54E-08
Benzo(g,h,i)perylene 1.30E-08 1.03E-08
Benzo(k)fluoranthene 1.95E-08 1.54E-08
Chrysene 1.95E-08 1.54E-08
Dibenzo(a,h)anthracene 1.30E-08 1.03E-08
Dichlorobenzene 1.30E-05 1.03E-05
Fluoranthene 3.25E-08 2.57E-08
Fluorene 3.03E-08 2.40E-08
Formaldehyde 8.12E-04 6.42E-04
Hexane 1.95E-02 1.54E-02
Indeno(1,2,3-cd)pyrene 1.95E-08 1.54E-08
Naphthalene 6.60E-06 5.22E-06
Phenanathrene 1.84E-07 1.45E-07
Pyrene 5.41E-08 4.28E-08
Toluene 3.68E-05 2.91E-05
Arsenic 2.16E-06 1.71E-06
Beryllium 1.30E-07 1.03E-07
Cadmium 1.19E-05 9.41E-06
Chromium 1.51E-05 1.20E-05
Cobalt 9.09E-07 7.19E-07
Manganese 4.11E-06 3.25E-06
Mercury 2.81E-06 2.23E-06
Nickel 2.27E-05 1.80E-05
Selenium 2.60E-07 2.05E-07
Boiler Emission
Replacement (tpy)
Emissions From Zinc/Phosphate
Descale Process Line (tpy)
Change in
Emissions (tpy)
-0.23 -0.23
-0.19 -0.19
-0.02 -0.02
-0.02 -0.02
0.00 0.00
-0.01 -0.04 -0.06
0.00 0.00
-0.00427 0.00
Boiler Emission
Relacement (tpy)
-5.43E-08
-4.07E-09
-3.62E-08
-4.07E-09
-4.07E-09
-5.43E-09
-4.07E-09
-4.75E-06
-2.72E-09
-4.07E-09
-2.72E-09
-4.07E-09
-4.07E-09
-2.72E-09
-2.72E-06
-6.79E-09
-6.34E-09
-0.0002
-0.0040734
-4.07E-09
-1.38E-06
-3.85E-08
-1.13E-08
-7.69E-06
-4.53E-07
-2.72E-08
-2.49E-06
-3.17E-06
-1.90E-07
-8.60E-07
-5.88E-07
-4.75E-06
-5.43E-08
Old PTE
Revised
PTE
9.37 9.14
6.91 6.72
0.73 0.71
0.73 0.71
0.06 0.06
15.04 14.98
HAPs Listed in PTE of Old AO
HAP tpy lb/year
VOCs 15.04 30080
Chromium Compounds 0.001 2.00
Ethylene Glycol 0.005 10
HCL 0.056 112
Hexamethylene-1,6,-diis 0.005 10
Hydrofluoric Acid 0.009 18
Methyl Ethyl Ketone 2.5 5000
Methyl Isobutyl Ketone'1 2000
Methylene Chloride 0.5 1000
Toluene 0.5 1000
Xylene 2 4000
Generic HAPs 0.819 1638
HAP Sum 7.40
*VOC and HAP PTE's were set equal to the limits in condition 15 of AO DAQE-817-01 (
GHG Emissions tpy
CO2e 8,569
Change in CO2e -273
HAPs Listed in CONDITION of Old AO (I us
HAP tpy
VOCs 15.04
Chromium Compounds 0.00142
Ethylene Glycol 0.405
HCL 0.0558
Hexamethylene-1,6,-diis 0.005
Hydrofluoric Acid 0.009195
Methyl Ethyl Ketone 2.5
Methyl Isobutyl Ketone 1
Methylene Chloride 0.5
Toluene 0.5
Xylene 2
Generic HAPs 0.819
HAP Sum 7.80
Change in HAP Emissions -2.5
NEW Hap SUM 5.30
(Condition II.B.4.a). MEK was subtracted from HAP totals but NOT VOCs
sed these for the sites PTE in the new AO)
lb/year
30080
2.84
810
111.6
10
18.39
5000
2000
1000
1000
4000
1638
15590.83
-5000
10590.83

NEW HAP TOTAL #REF!tpy
Change it HAP total #REF!tpy
Equipment Details
Rating 2.52 MMBtu/hour Equipment ID: 8.H
Operational Hours 8,760 hours/year 2.52
Firing Normal
Criteria Pollutant Concentration(ppm)
Emission
Factor(lb/10^6 scf)
Emission
Rate(lbs/hr)
Emission
Total(tons/year)Reference
NOX 100 0.25 1.08
CO 84 0.21 0.91PM107.6 0.02 0.08
PM2.5 7.6 0.02 0.08
SO2 0.6 0.00 0.01
VOC 5.5 0.01 0.06
Lead 0.0005 0.00 0.00
HAP 0.00 0.02 See Below
Green House Gas Pollutant
Global Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 296 1,299
Methane (mass basis)25 2.3 0.01 0.02
N2O (mass basis)298 2.2 0.01 0.02CO2e1,306
Hazardous Air Pollutant
EmissionRate(lbs/hr)
EmissionTotal(tons/year)Reference
2-Methylnaphthalene 2.40E-05 5.93E-08 2.60E-073-Methylchloranthrene 1.80E-06 4.45E-09 1.95E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 3.95E-08 1.73E-07
Acenaphthene 1.80E-06 4.45E-09 1.95E-08
Acenaphthylene 1.80E-06 4.45E-09 1.95E-08
Anthracene 2.40E-06 5.93E-09 2.60E-08
Benz(a)anthracene 1.80E-06 4.45E-09 1.95E-08
Benzene 2.10E-03 5.19E-06 2.27E-05
Benzo(a)pyrene 1.20E-06 2.96E-09 1.30E-08Benzo(b)fluoranthene 1.80E-06 4.45E-09 1.95E-08
Benzo(g,h,i)perylene 1.20E-06 2.96E-09 1.30E-08
Benzo(k)fluoranthene 1.80E-06 4.45E-09 1.95E-08
Chrysene 1.80E-06 4.45E-09 1.95E-08
Dibenzo(a,h)anthracene 1.20E-06 2.96E-09 1.30E-08
Dichlorobenzene 1.20E-03 2.96E-06 1.30E-05
Fluoranthene 3.00E-06 7.41E-09 3.25E-08
Fluorene 2.80E-06 6.92E-09 3.03E-08
Formaldehyde 7.50E-02 1.85E-04 8.12E-04Hexane1.80E+00 4.45E-03 1.95E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 4.45E-09 1.95E-08Naphthalene6.10E-04 1.51E-06 6.60E-06
Phenanathrene 1.70E-05 4.20E-08 1.84E-07
Pyrene 5.00E-06 1.24E-08 5.41E-08
Toluene 3.40E-03 8.40E-06 3.68E-05
Arsenic 2.00E-04 4.94E-07 2.16E-06
Beryllium 1.20E-05 2.96E-08 1.30E-07Cadmium1.10E-03 2.72E-06 1.19E-05
Chromium 1.40E-03 3.46E-06 1.51E-05
Cobalt 8.40E-05 2.08E-07 9.09E-07
Manganese 3.80E-04 9.39E-07 4.11E-06
Mercury 2.60E-04 6.42E-07 2.81E-06
Nickel 2.10E-03 5.19E-06 2.27E-05
Selenium 2.40E-05 5.93E-08 2.60E-07
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
AP-42 Table 1.4-3
Page 12 of 15 Version 1.0
November 29, 2018
Equipment Details
Rating 1.993 MMBtu/hour
Operational Hours 8,760 hours/year
Firing Normal
Criteria Pollutant Concentration(ppm)
Emission
Factor(lb/10^6 scf)
Emission
Rate(lbs/hr)
Emission
Total(tons/year)Reference
NOX 100 0.20 0.86
CO 84 0.16 0.72PM107.6 0.01 0.07
PM2.5 7.6 0.01 0.07
SO2 0.6 0.00 0.01
VOC 5.5 0.01 0.05
Lead 0.0005 0.00 0.00
HAP 0.00 0.02 See Below
Green House Gas Pollutant
Global Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 234 1,027
Methane (mass basis)25 2.3 0.00 0.02
N2O (mass basis)298 2.2 0.00 0.02CO2e1,033
Hazardous Air Pollutant
EmissionRate(lbs/hr)
EmissionTotal(tons/year)Reference
2-Methylnaphthalene 2.40E-05 4.69E-08 2.05E-073-Methylchloranthrene 1.80E-06 3.52E-09 1.54E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 3.13E-08 1.37E-07
Acenaphthene 1.80E-06 3.52E-09 1.54E-08
Acenaphthylene 1.80E-06 3.52E-09 1.54E-08
Anthracene 2.40E-06 4.69E-09 2.05E-08
Benz(a)anthracene 1.80E-06 3.52E-09 1.54E-08
Benzene 2.10E-03 4.10E-06 1.80E-05
Benzo(a)pyrene 1.20E-06 2.34E-09 1.03E-08Benzo(b)fluoranthene 1.80E-06 3.52E-09 1.54E-08
Benzo(g,h,i)perylene 1.20E-06 2.34E-09 1.03E-08
Benzo(k)fluoranthene 1.80E-06 3.52E-09 1.54E-08
Chrysene 1.80E-06 3.52E-09 1.54E-08
Dibenzo(a,h)anthracene 1.20E-06 2.34E-09 1.03E-08
Dichlorobenzene 1.20E-03 2.34E-06 1.03E-05
Fluoranthene 3.00E-06 5.86E-09 2.57E-08
Fluorene 2.80E-06 5.47E-09 2.40E-08
Formaldehyde 7.50E-02 1.47E-04 6.42E-04Hexane1.80E+00 3.52E-03 1.54E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 3.52E-09 1.54E-08Naphthalene6.10E-04 1.19E-06 5.22E-06
Phenanathrene 1.70E-05 3.32E-08 1.45E-07
Pyrene 5.00E-06 9.77E-09 4.28E-08
Toluene 3.40E-03 6.64E-06 2.91E-05
Arsenic 2.00E-04 3.91E-07 1.71E-06
Beryllium 1.20E-05 2.34E-08 1.03E-07Cadmium1.10E-03 2.15E-06 9.41E-06
Chromium 1.40E-03 2.74E-06 1.20E-05
Cobalt 8.40E-05 1.64E-07 7.19E-07
Manganese 3.80E-04 7.42E-07 3.25E-06
Mercury 2.60E-04 5.08E-07 2.23E-06
Nickel 2.10E-03 4.10E-06 1.80E-05
Selenium 2.40E-05 4.69E-08 2.05E-07
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
AP-42 Table 1.4-3
Page 13 of 15 Version 1.0
November 29, 2018
Chromium Compund Emission Summary:Total Emission Rate (ER) reduced from 2.02 to 0.88
Controlled Emission Rate (CER) reduced from 0.2 to 0.09
Previous Chromium Compound Emission Calculations
Source:Chemical Conversion TanksCompany: Metalcraft Technologies, Inc.Site: Metalcraft Technologies East, Cedar City, Utah DAQ CalculationsDate: 3/26/1999
Product Pollutant AU (gal/yr)Density (lb/gal)AU (lb/yr)PP EV CE ER CER AU ER CERNovacoat 1100 Sodium Bichromate 31 9.49 294 5 1 90 0.15 0.01 294.19 0.15 0.01Novacoat 1100 Chromic Acid 31 9.49 294 10 1 90 0.29 0.03 294.19 0.29 0.03
Alodine 1200 S Chromic Acid ----261 60 1 90 1.57 0.16 261 1.57 0.16Chromic Acid Flake Chromic Acid ----1.23 100 1 90 0.01 0 1.23 0.01 0.00Totals2.02 0.2 2.02 0.20
Projected Chromium Compound Emission Calculations
Source:Chemical Processing TanksCompany: Align Precision - Cedar City, LLC.Site: Align Precision - Cedar City, Plant 2Date: 5/28/2024
Product Pollutant AU (lb/yr)PP EV CE ER CER AU ER CER
Chromic Acid Flake Chromium Trioxide 6.7 100 1 90 0.07 0.01 6.7 0.07 0.01Sodium chromate Sodium Chromate 5.2 100 1 90 0.05 0.01 5.2 0.05 0.01Alodine 600 Chromium (VI) Oxide 189.5 40 1 90 0.76 0.08 189.5 0.76 0.08Totals0.88 0.09 0.88 0.09
Input Data:Change in Chromium Compound Emissions: -1.143 -0.11 lb/year
Annual Usage (AU):Align Precision - Cedar City, LLC.-0.0005714 -0.00006 tpyPollutant Percent (PP):SDSEvaporation Rate (EV):1999 Projected Emission Calculations
Control Efficiency (CE):1999 Projected Emission CalculationsEmission Rate (ER):CalculatedControlled Emission Rate: Calculated
Chromium Trioxide Sodium Chromate Alodine 600
Current tank usage 789.08 617.5 35.5Current recommended makeup 119 85 29.5Percent added comparitive to makeup 6.6 7.3 1.2
Notes:Projected annual usage was estimated based on the current amount of annual additions divided by the current tank makeup recommendations and then multiplied by the projected tank makeup recommendations
Equations:Projected Annual Usage:(current annual usage in grams)/(current tank makeup recommendations in grams)*(projected makeup recommendations in grams)*0.00220462(g/lb)Emission Rate:AU(lb/yr)*PP(%/100)*EV(%/100) = ER(lb/yr)
Controlled Emission Rate:ER(lb/yr)*(1-[CE/100]) = CER(lb/yr)
lb/year
lb/year
Equipment Details
Rating 16.53 MMBtu/hour Equipment ID: 8.H
Operational Hours 8,760 hours/year 2.52
Firing Normal
Criteria Pollutant Concentration(ppm)Emission Factor(lb/10^6 scf)
Emission
Rate(lbs/hr)
Emission
Total(tons/year)Reference
NOX 100 1.62 7.10
CO 84 1.36 5.96PM107.6 0.12 0.54
PM2.5 7.6 0.12 0.54
SO2 0.6 0.01 0.04
VOC 5.5 0.09 0.39
Lead 0.0005 0.00 0.00
HAP 0.03 0.13 See Below
Green House Gas Pollutant
Global Warming
Potential
Emission Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 1,945 8,518
Methane (mass basis)25 2.3 0.04 0.16
N2O (mass basis)298 2.2 0.04 0.16CO2e8,569
Hazardous Air Pollutant
EmissionRate(lbs/hr)
EmissionTotal(tons/year)Reference
2-Methylnaphthalene 2.40E-05 3.89E-07 1.70E-063-Methylchloranthrene 1.80E-06 2.92E-08 1.28E-07
7,12-Dimethylbenz(a)anthracene 1.60E-05 2.59E-07 1.14E-06
Acenaphthene 1.80E-06 2.92E-08 1.28E-07
Acenaphthylene 1.80E-06 2.92E-08 1.28E-07
Anthracene 2.40E-06 3.89E-08 1.70E-07
Benz(a)anthracene 1.80E-06 2.92E-08 1.28E-07
Benzene 2.10E-03 3.40E-05 1.49E-04
Benzo(a)pyrene 1.20E-06 1.94E-08 8.52E-08Benzo(b)fluoranthene 1.80E-06 2.92E-08 1.28E-07
Benzo(g,h,i)perylene 1.20E-06 1.94E-08 8.52E-08
Benzo(k)fluoranthene 1.80E-06 2.92E-08 1.28E-07
Chrysene 1.80E-06 2.92E-08 1.28E-07
Dibenzo(a,h)anthracene 1.20E-06 1.94E-08 8.52E-08
Dichlorobenzene 1.20E-03 1.94E-05 8.52E-05
Fluoranthene 3.00E-06 4.86E-08 2.13E-07
Fluorene 2.80E-06 4.54E-08 1.99E-07
Formaldehyde 7.50E-02 1.22E-03 5.32E-03Hexane1.80E+00 2.92E-02 1.28E-01
Indeno(1,2,3-cd)pyrene 1.80E-06 2.92E-08 1.28E-07Naphthalene6.10E-04 9.89E-06 4.33E-05
Phenanathrene 1.70E-05 2.76E-07 1.21E-06
Pyrene 5.00E-06 8.10E-08 3.55E-07
Toluene 3.40E-03 5.51E-05 2.41E-04
Arsenic 2.00E-04 3.24E-06 1.42E-05
Beryllium 1.20E-05 1.94E-07 8.52E-07Cadmium1.10E-03 1.78E-05 7.81E-05
Chromium 1.40E-03 2.27E-05 9.94E-05
Cobalt 8.40E-05 1.36E-06 5.96E-06
Manganese 3.80E-04 6.16E-06 2.70E-05
Mercury 2.60E-04 4.21E-06 1.85E-05
Nickel 2.10E-03 3.40E-05 1.49E-04
Selenium 2.40E-05 3.89E-07 1.70E-06
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
AP-42 Table 1.4-3
Page 15 of 15 Version 1.0
November 29, 2018
Chromium Compund Emission Summary:Total Emission Rate (ER) reduced from 2.02 to 0.88
Controlled Emission Rate (CER) reduced from 0.2 to 0.09
Previous Chromium Compound Emission Calculations
Source:Chemical Conversion Tanks
Company: Metalcraft Technologies, Inc.
Site: Metalcraft Technologies East, Cedar City, Utah
Date: 3/26/1999
Product Pollutant AU (gal/yr)Density (lb/gal)AU (lb/yr)PP EV CE ER CER
Novacoat 1100 Sodium Bichromate 31 9.49 294 5 1 90 0.15 0.01
Novacoat 1100 Chromic Acid 31 9.49 294 10 1 90 0.29 0.03
Alodine 1200 S Chromic Acid ----261 60 1 90 1.57 0.16
Chromic Acid Flake Chromic Acid ----1.23 100 1 90 0.01 0
Totals 2.02 0.2
Projected Chromium Compound Emission Calculations
Source:Chemical Processing Tanks
Company: Align Precision - Cedar City, LLC.
Site: Align Precision - Cedar City, Plant 2
Date: 5/28/2024
Product Pollutant AU (lb/yr)PP EV CE ER CER
Chromic Acid Flake Chromium Trioxide 6.7 100 1 90 0.07 0.01
Chromic Acid Flake Sodium Chromate 5.2 100 1 90 0.05 0.01
Alodine 600 Chromium (VI) Oxide 189.5 40 1 90 0.76 0.08
Totals 0.88 0.09
Input Data:
Annual Usage (AU):Align Precision - Cedar City, LLC.
Pollutant Percent (PP):SDS
Evaporation Rate (EV):1999 Projected Emission Calculations
Control Efficiency (CE):1999 Projected Emission Calculations
Emission Rate (ER):Calculated
Controlled Emission Rate: Calculated
Chromium Trioxide Sodium Chromate Alodine 600
Current tank usage 789.08 617.5 35.5
Current recommended makeup 119 85 29.5
Percent added comparitive to makeup 6.6 7.3 1.2
Notes:
Projected annual usage was estimated based on the current amount of annual additions
divided by the current tank makeup recommendations and then multiplied by the projected tank makeup recommendations
Equations:
Projected Annual Usage:(current annual usage in grams)/(current tank makeup recommendations in grams)*(projected makeup recommendations in grams)*0.00220462(g/lb)
Emission Rate:AU(lb/yr)*PP(%/100)*EV(%/100) = ER(lb/yr)
Controlled Emission Rate:ER(lb/yr)*(1-[CE/100]) = CER(lb/yr)
Eau Page 1 of 10
Cache Valley Chemicals
C.LP. Specialist Inc.
MATERIAL SAFETY DATA SHEET
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: Chromic acid flake
00703 HCI PRODUCT ID NUMBER: ;
SYNONYMS: Chromic acid, solid; Chromium trioxide
CHEMICAL FAMILY NAME: Metal oxides
NFPA HAZARD RATINGS (H-F-R): 3-0-1
HMIS HAZARD RATINGS (H-F-R): 3-0-1
_ DISTRIBUTOR: HCI U.S.A. DISTRIBUTION COMPANIES, INC.
TECHNICAL RESOURCE CENTER
6529 S. BROADWAY :
ST. LOUIS, MO 63111
[phone]
IN CASE OF EMERGENCY CALL: CHEMTREC 1-800-424-9300
2. COMPOSITION, INFORMATION ON INGREDIENTS
INGREDIENT CAS No. PERCENT —
Chromium trioxide 001333-82-0 99-100
Trace impurities and additional material names not listed above may
also appear in the Regulatory Information Section (Section 15)
towards the end.of the MSDS. These materials may be listed for
local "Right to Know™ compliance and for other reasons.
3. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW *** #44 ee eek Re te oe ke kok ee tek ete ke ke ee a ee
Danger!
Oxidizer!
Liquid is corrosive to eyes and skin.
Harmful if inhaled, ingested, of absorbed through the skin.
This material causes destruction of body tissue.
Cancer hazard. Contains material which can cause cancer.
Continued
—_ -
http://hciweb/QMSD$/00703 6/11/99
Page 2 of 10
rn ern fn ee ee eee ee ee ee ee ee ee
POTENTIAL HEALTH EFFECTS
Contact with the skin can cause severe irritation or burns. SKIN:
Skin contact can cause external ulcers and ulceration of broken
skin, or "chrome sores".
Material may be absorbed through the skin and can produce similar to inhalation and ingestion.
EYES: Contact with the eyes may cause burns, tearing, and blindness.
INGESTION: Ingestion can cause serious burns to the mouth, esophagus, stomach, and other tissues which may prove fatal.
May result in kidney and liver damage.
Aspiration may occur during swallowing or vomiting resulting in lung damage.
INHALATION: Inhalation may cause irritation (possibly severe), lack of sense of
smell, nausea, vomiting, chest pain, difficulty breathing,
headache, lung damage, convulsions or shock.
Inhalation of dusts or mists can damage upper respiratory tract
and lung tissue depending on the extent of exposure.
May result in kidney and liver damage.
OTHER: Repeated exposure of this product may cause cancer.
MEDICAL CONDITIONS AGGRAVATED:
Exposure to this product may aggravate pre-existing skin disorders.
Components found on one of the OSHA designated carcinogen lists are ©
listed below.
NTP IARC OSHA INGREDIENT Y XY N Chromium trioxide
WARNING: Contains a chemical known to the State of California to
cause cancer.
Chromium trioxide
4. FIRST AID MEASURES
SKIN CONTACT: Remove contaminated clothing and shoes.
Wash exposed areas with soap and water.
Get immediate medical attention.
EYE CONTACT: Flush eyes with water for at least 15 minutes.
Get immediate medical attention.
Continued
http://nciweb/QMSDS/00703 6/11/99
INGESTION:
INHALATION:
Page 3 of 10
Do not induce vomiting. Give 1-2 glasses of water to dilute. If
vomiting occurs spontaneously, keep head below hips to prevent aspiration of liquid into the lungs.
Do not give anything by mouth to an unconscious person.
Get immediate medical attention.
Remove to fresh air.
If breathing has stopped, give artificial respiration.
Get immediate medical attention.
NOTES TO PHYSICIAN:
Ingestion victims should be given 5-10 g of ascorbic acid (not
effervescent tablets) dissolved in water. This dose can be repeated several times.
Massive overexposure to solutions of this product could lead to
kidney failure and death. Death has been avoided in several such
cases through the use of early renal dialysis. It has been
reported that there is little value from chelating agents.
However, ascorbic acid administered intravenously is an effective
anitdote in preventing renal failure. Skin ulcers may be treated
by removal from exposure, daily cleansing, and debridement and
application of antibiotic cream and dressing.
5. FIRE FIGHTING MEASURES
FIRE AND EXPLOSIVE PROPERTIES
FLASHPOINT: N/AP
FLASH POINT METHOD: N/AP
LOWER FLAMMABILITY LIMIT(% IN AIR): N/AP
UPPER FLAMMABILITY LIMIT(% IN AIR): N/AP
AUTOIGNITION TEMPERATURE: N/AP
FLAMMABILITY CLASSIFICATION: N/AP
EXTING. MEDIA:
FIRE FIGHTING:
FIRE HAZARDS:
http://nciweb/QMSDS/00703
Use water only. Do not use dry chemicals, carbon dioxide, or
halogenated extinguishing agents.
Use NIOSH-approved self-contained breathing apparatus and complete
protective clothing when fighting chemical fires.
Use water spray to cool closed containers but avoid getting water
into containers.
Use fog nozzles if water is used.
Evacuate area and fight fire from a safe distance.
Negligible fire hazard. Severe explosion hazard. Oxidizer.
Releases oxygen when heated and increases the burning rate of
combustible materials. May ignite or explode on contact with
combustible materials.
Continued
6/11/99
Page 4 of 10
6. ACCIDENTAL RELEASE MEASURES
SMALL SPILLS: Neutralize with sodium bicarbonate or equal parts of soda ash and slaked lime.
Contain spill and ventilate area. Absorb on inert media and
containerize for disposal.
Do not flush to sewer.
LARGE SPILLS: Contain spill and ventilate area. Permit only trained personnel wearing full protective equipment to enter the spill area. Collect
the spill in a waste container or remove with a vacuum truck. Prevent spill from entering natural watercourses.
Wear complete protective clothing when cleaning up chemical spills.
Spills and releases may have to be reported to federal and/or local
authorities. See the Regulatory Information section (section 15)
regarding reporting requirements.
7. HANDLING AND STORAGE INFORMATION
HANDLING: Avoid contact with skin, eyes, and clothing.
Avoid breathing product vapors and mists. Do not take internally.
Wash thoroughly after handling this material.
Use this material only with adequate ventilation.
STORAGE: Keep container closed when not in use.
This material should be stored in a dry, cool place. Store in well
ventilated areas and at moderate temperatures.
Containers should be grounded.
The empty container is hazardous.
Avoid conditions of moisture.
Continued
http://nciweb/QMSDS/00703 6/11/99
Page 5 of 10
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
ENGINEERING CONTROLS
Use a ventilation system to maintain atmospheric concentrations
below published exposure limits. Corrosion-proof fans should be used in a mechanical-type ventilation system.
PERSONAL PROTECTIVE EQUIPMENT
Wear protective gloves made of neoprene or rubber. SKIN:
EYES: Wear chemical safety goggles.
RESPIRATORY: If engineering controls do not maintain airborne concentrations
below recommended limits, wear a NIOSH-approved respirator for dusts and mists.
OTHER: Emergency showers, eye-wash stations, and fire blankets should be
accessible. Wear protective clothing.
EXPOSURE GUIDELINES
ACGIH TLV ACGIH STEL OSHA PEL OSHA STEL INGREDIENT 0.01mg/m3i N/EST 0.1 mg/m3c N/EST Chromium trioxide
i = insoluble compounds; OHSA TWA is based on (Cr03); c = ceiling;
ACGIH TWA is based on (Cr)
See 29 CFR 1910.1000 (D) (2) and ACGIH "Threshold Limit Values for
Chemical Substances and Physical Agents Biological Exposure
Indices" booklet (Appendix C) for the determination of exposure
limits for mixtures. Consult an industrial hygienist or similar professional to confirm that the calculated exposure limits are
appropriate.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: Solid
APPEARANCE: Dark red, deliquescent flakes or powder
ODOR: Odorless
MOLECULAR WEIGHT: 99.99
SPECIFIC GRAVITY: 2.7 @20C
SOLUBILITY (IN WATER): 63% @25 ¢C
BOILING POINT: N/AP
FREEZING POINT: N/AP MELTING POINT: 387 F 197.2 ¢c PRODUCT pH (@ 23 C): 1.1(1% sol) @25c
VAPOR PRESSURE: N/AP
Continued
http://hciweb/QMSDS/00703 6/11/99
Page 6 of 10
VAPOR DENSITY: N/AP
EVAPORATION RATE (BUTYL ACETATE=1) : N/AP
% VOLATILES: N/AP
10. STABILITY AND REACTIVITY INFORMATION
STABILITY: Stable
COND. TO AVOID: Containers may rupture or explode if exposed to heat.
INCOMPATIBILITY: Oils and greases
Halogens, combustible materials, acids, metal salts
Metals and bases
Strong reducing agents
Alkalies
Halo carbons
Organic materials
DECOMPOSITION: Oxides of chromium
Oxygen
POLYMERIZATION: Polymerization will not occur.
1L. TOXICOLOGICAL INFORMATION
IMMEDIATE EFFECTS
This material is corrosive by inhalation, skin and eye contact, and
ingestion.
Toxic: ingestion
Target organs: Immune system (sensitizer), kidneys
LD50: 80 mg/kg - oral - rat LDS0: 58400 ug/kg - intraperitoneal - rat
LD50: 9260 ug/kg — intravenous - rat
LD50: 127 mg/kg - oral - mouse
LD50: 14 mg/kg - intraperitoneal - mouse
LD50: 17100 ug/kg - intravenous - mouse
Tumorigenic data: 110 ug/m3 - inhalation - human - TCLo/3 yr(s)
continuous; 125 mg/kg - implant - rat - TDLo; 3480 ug/m3 -
inhalation - mouse - TCLo/2 hr(s) - 1 yr(s) intermittent
Continued
http: //nciweb/QMSDS/00703 6/11/99
DELAYED EFFECTS
CARCINOGENICITY:
MUTAGENICITY:
EPIDEMIOLOGY:
TERATOGENICITY:
REPRODUCTIVITY:
NEUROTOXICITY:
Page 7 of 10
(CHRONIC AND SUBCHRONIC)
This product contains a confirmed human carcinogen. The agent is
carcinogenic to humans based on the weight of evidence from epidemiologic studies of, or convincing evidence in, exposed
humans.
Mutation in microorganisms -salmonella typhimurium 1 mmol/L (+59);
Mutation in microorganisms -salmonella typhimurium 10 ug/plate
(-S9); DNA repair - salmonella typhimurium 50 mmol/L; mutation in microorganisms - escherichia coli 8 umol/L (-S9}); other mutation
test systems - eschericia coli 1500 nmol/tube; DNA repair -
escherichia coli 18700 ng/well; DNA repair - bacillus subtilis 50 mmol/L; specific locus test - Drosophila melanogaster
intraperitoneal 300 ppm; specific locus test - Drosophila
melanogaster oral 1 mmol/L; morphological transformation - human
fibroblast 100 nmol/L; cytogenetic analysis - human leukocyte
2 mg/L; cytogenetic analysis - mouse - oral - 20 mg/kg;
cytogenetic analysis - mouse - mammary gland 1 umol/L 48 hour(s);
micronucleus test - hamster ovary 1 umol/L; cytogenetic analysis -
hamster - embryo 68 ug/L; cytogenetic analysis - hamster ovary 250 ug/L; sister chromatid exchange - hamster - ovary - 250 ug/L;
sister chromatid exchange - hamster fibroblast 320 ug/L; mutation
in mammalian somatic cells - hamster - ovary - 6 umol/L
No data available
No data available
20 mg/kg subcutaneous-mouse TDLo 8 day(s) pregnant female continuous; 5 mg/kg intravenous-hamster TDLo 8 day(s) pregnant
female continuous; 7500 ug/kg intravenous~hamster TDLo 8 day(s)
pregnant female continuous; 7500 ug/kg intravenous-hamster TDLo 8
day(s) pregnant female continuous; 8 mg/kg intravenous-hamster TDLo
8 day(s) pregnant female continuous
No data available
12.
nttp://hciweb/QMSDS/00703
ECOLOGICAL INFORMATION
Fish toxicity:
(Colisa fasciata)
Invertebrate toxicity: Algal toxicity:
21000 ug/L 96 hr(s) LC50 (mortality) Giant gourami
162 ug/L 48 hr(s) LC50 (mortality) Water flea
525 ug/L 20 hr(s) LC50 (popular growth) Green algae
(Scenedesmus quadricauda)
Other toxicity: 30 ug/L 7 hr(s} LCSO (mortality) Narrow mouthed frog
Continued
6/11/99
Page 8 of 10
(Microhyla carolinensis)
13. DISPOSAL CONSIDERATIONS
RCRA WASTE: Yes
RCRA ID NUMBER: DOOL, DOO7
voc CONTENT (lbs/gal): N/AP
Discharge, treatment, or disposal may be subject to Federal, State, or Local laws. State and Local regulations and restrictions are complex and may differ from Federal disposal regulation.
The information offered here is for the product as shipped. Use and/or alterations to the product such as mixing with other materials may significantly change the characteristics of the material and alter the RCRA Classification and the proper disposal method.
14. TRANSPORTATION INFORMATION
DOT SHIPPING NAME: Chromic acid, solid
DOT HAZARD CLASS: 5.1
DOT ID NUMBER: NA1463
DOT PACKING GROUP: IT
OTHER: Labels required: Oxidizer, Corrosive
IMDG HAZARD CLASS: 5.1
ICAO HAZARD CLASS: 5.1
15. REGULATORY INFORMATION
CERCLA "REPORTABLE QUANTITY” (RQ): 10 lbs. (Chromic acid)
Spills/releases resulting in the loss of this product at or above its RQ requires immediate notification to the National Response Center (1-800-424-8802) and to your Local Emergency Planning Committee.
Continued
im

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Page 9 of 10
TSCA
TSCA INVENTORY STATUS: Yes
SARA TITLE IIT
SECTION 313 SECTION 302 INGREDIENT
Chromium trioxide yes no
SECTION 311/312 HAZARD CLASS: Immediate (acute) health hazard,
Fire hazard,
Reactive,
Sudden release of pressure
WHMIS CLASSIFICATION (CANADA)
Class E
FOREIGN INVENTORY STATUS
EINECS (European Inventory of Existing Commercial Chemical
Substances}
ADDITIONAL REGULATORY INFORMATION
WARNING: Contains a chemical known to the State of California to
cause cancer.
Chromium trioxide
MASSACHUSETTS SUBSTANCE LIST:
Chromium trioxide _
NEW JERSEY WORKPLACE HAZARDOUS SUBSTANCE LIST:
Chromium trioxide
PENNSYLVANIA HAZARDOUS SUBSTANCE LIST:
Chromium trioxide
Continued
htto://nciweb/QMSDS/00703 6/11/99
Page 10 of 10
16. OTHER INFORMATION
CREATION DATE: 08/15/1997
REVISION DATE: 08/15/1997
The information herein is presented in good faith and is believed
to be correct as of the date hereof. However, HCI makes no
representation as to the completeness and accuracy thereof. Users
must make there own determination as to the suitability of the
product for their purposes prior to use.
No representations or warranties, either expressed or implied, of
merchantability, fitness for a particular purpose, or of any other
mature with respect to the product or to the information herein is made hereunder. HCI shall in no event be responsible for any
damages of whatsoever nature directly or indirectly resulting from
the publication, or use of, or reliance upon the information
contained herein.
End of DocumentO
nttp://nciweb/QMSDS/00703 6/11/99
1
DAQC-439-24
Site ID 12202 (B1)
MEMORANDUM
TO: FILE – ALIGN PRECISION (Building 2) – Formerly METALCRAFT
TECHNOLOGIES
THROUGH: Chad Gilgen, Minor Source Compliance Section Manager
FROM: Jared James, Environmental Scientist
DATE: April 24, 2024
SUBJECT: FULL COMPLIANCE EVALUATION, Minor, Iron County
INSPECTION DATE: March 27, 2024
SOURCE LOCATION: 597 North 1500 West, Cedar City, Utah 84721
SOURCE CONTACT(S): Eric Lewis, Environmental Engineer: 435-586-3871
[e-mail]
OPERATING STATUS: Operating
PROCESS DESCRIPTION: This is an aircraft parts manufacturing and finishing operation.
Machined parts from a separate process are brought in by truck.
These parts go through one of several processes. Most go
through a chemical process line which includes anodizing,
alodine process, and etching. The process consists of a series of
dip tanks. The parts are placed on a manual controlled overhead
conveyor or hand dipped if small enough. There is one main line
which incorporates the three processes. The line has two hot
water tanks followed by an alodine solution tank, a chromate
solution tank, an acid cleansing tank, an acid bath tank, a sizing
tank, a second acid bath tank, a sulfuric acid tank, a boric acid
tank, and then several water or treatment tanks. The parts are
placed in the tanks as needed for the process they are going
through. Not all parts are dipped in each tank. All the treatment
tanks are in the same line and each tank has a duct above it
which feeds to a main exhaust system which feeds to roof
mounted scrubbers. The scrubber uses feed water only and the
emissions go through the stack to the outside air. The building
also has a water treatment system which includes a chromium
treat tank (chemical separation), two neutralization tanks, a
flocculation tank, a clarifier, filter press for solids, reject holding
tank, a sand filter, and sand filter feed tank. The water is
discharged into the local water discharge system while the solids
are collected and disposed of through a local company. The site
also includes multiple space heaters. The site has five paint
booths. Two enclosed booths/ovens have been installed and are
00
2
operational. One is a large (automotive type) booth with a
combined oven and several filter banks which exhaust to the air.
The paint booth/oven is fired on natural gas only. The plant has
two natural gas make up air heaters to provide make up air to the
remaining paint booths. The other three paint booths are wall
booths with a back wall filter bank. Air is drawn through the
banks by roof top fans and discharged to the ambient air. All the
booths have pressure assistant spray heads. Two booths are
currently completely installed and operational. The other one is
only partially installed and was not operational for this
inspection. Instead these booths are used for the drying and
storage of parts. All of the parts are shipped off site by truck.
This plant is a new plant and will be used in conjunction with the
older, existing plant. This plant will be used to finish the
manufactured parts from the other plant. Much of the equipment
has, or will be, moved from the other plant. Each plant has a
separate AO and AIRs number.
APPLICABLE REGULATIONS: Approval Order DAQE-817-01, dated October 4, 2001.
SOURCE EVALUATION:
General Conditions:
Condition 1. This AO applies to the following company:
Site Office Corporate Office Location
Metalcraft Technologies, Inc. Metalcraft Technologies, Inc.
597 North 1500 West 498 North 2774 West
Cedar City, Utah 84720 Cedar City, Utah 84720
Phone Number [phone] [phone]
Fax Number [phone] [phone]
The equipment listed in this AO shall be operated at the following location:
PLANT LOCATION:
597 North 1500 West, Cedar City, Utah, Iron County
Universal Transverse Mercator (UTM) Coordinate System: UTM Datum NAD27
4,172.9 kilometers Northing, 316.4 kilometers Easting, Zone 12
Status: In compliance. Phone and fax numbers are as listed. The source now goes by the
name Align Precision (the name of the company which purchased Metalcraft
Technologies), and the office is located at 526 Aviation Way, Cedar City, Utah
84721.
3
Condition 2. All definitions, terms, abbreviations, and references used in this AO conform to those
used in the Utah Administrative Code (UAC) Rule 307 (R307), and Title 40 of the Code
of Federal Regulations (40 CFR). Unless noted otherwise, references cited in these AO
conditions refer to those rules.
Status: In compliance.
Condition 3. The limits set forth in this AO shall not be exceeded without prior approval in accordance
with R307-401.
Status: In compliance. No limits appear to have been exceeded.
Condition 4. Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be approved in accordance with R307-401-1.
Status: In compliance. No modifications have been made to equipment or process.
Condition 5. All records referenced in this AO which are required to be kept by the owner/operator,
shall be made available to the Executive Secretary or Executive Secretary’s
representative upon request, and the records shall include the two-year period prior to the
date of the request. All records shall be kept for a minimum period of two years.
Emission inventories shall be kept for a period of five years from the due date of each
emission statement or until the next inventory is due, whichever is longer.
Status: In compliance. The facility appeared to be well maintained. A PM schedule is
followed. Maintenance records were provided at the time of inspection for review.
Condition 6. Metalcraft shall install and operate the anodize/alodine process line and shall conduct its
operations of the aircraft parts manufacturing facility accordance with the terms and
conditions of this AO, which was written pursuant to Metalcraft’s NOI submitted to the
Division of Air Quality (DAQ) on May 1, 2001, and additional information submitted to
the DAQ on August 10, 2001.
Status: In compliance. Align Precision appears to operate the anodize/Alodine process line
according to the conditions of the AO.
Condition 7. This AO shall replace the AO (DAQE-134-01) dated February 22, 2001.
Status: In compliance. Only the current AO was used to determine compliance.
Condition 8. The approved installations shall consist of the following equipment:
A. One (1) Enclosed Paint Booth
Size: 15x30x9 ft
Filter Medium: Three Stage Filter System
Air Flow: 13,500 acfm
4
B. One (1) Open Faced Paint Booth
Size: 28x11x9 ft
Filter Medium: Three Stage Filter System
Air Flow: 25,200 acfm
C. Three (3) Open Faced Paint Booths
Size: 14x11x9 ft
Filter Medium: Three Stage Filter System
Air Flow: 12,600 acfm
D. Natural Gas Fired Heater
Heating Capacity: 1.00 x 106 BTU/hr
E. Natural Gas Fired Walk-In-Oven
Heating Capacity: 0.70 x 106 BTU/hr
F. Natural Gas Fired Bake Oven
Heating Capacity: 1.05 x 106 BTU/hr
G. Natural Gas Fired Boiler
Heating Capacity: 0.1875 x 106 BTU/hr
H. Natural Gas Fired Boiler
Heating Capacity: 2.52 x 106 BTU/hr
I. Natural Gas Fired Boiler
Heating Capacity: 2.10 x 106 BTU/hr
J. Natural Gas Fired Make-up Air Heater
Heating Capacity: 9.5 x 106 BTU/hr
K. One (1) Passivation/Brass Bright Dip Chemical Process Line
L. Two (2) Anodize/Alodine Chemical Process Lines
i. One (1) 500 gallon Electropolish Tank
M. One (1) Zinc/Phosphate Descale Process Line
N. Two (2) Ceilcote Wet Scrubbers (for chemical process lines)
Flow Rate: 35,000 acfm each scrubber
O. Miscellaneous Natural Gas Radiant and Space Heaters
5
P. One (1) Wastewater Treatment Plant
i. Chromium treatment tank
ii. Neutralization tank 1
iii. Neutralization tank 2
iv. Flocculation tank
v. Clarifier
vi. Filter press
vii. Sludge drier
viii. Reject holding tank
ix. Sand filter feed tank
x. Sand filter
Q. One (1) Wet Scrubber (for wastewater treatment plant)
Status: In compliance. Equipment observed on site was consistent with that listed. No
unapproved equipment was observed on site. Items G, Li, M, and Pvii have been
permanently removed from the source. Several items are also known by other
names; D is known as F-20, E as F-7, H as U-26014, and L as U-26013.
Condition 9. The Ceilcote wet scrubbers shall control the process streams from the three chemical
process lines. The wet scrubbers shall each be sized to handle at least 35,000 acfm for the
existing conditions. All exhaust air from the chemical process lines shall be routed
through the wet scrubbers before being vented to the atmosphere.
Status: In compliance. The two Ceilcote wet scrubber’s ratings were confirmed at 35,000
acfm of flow. The exhaust from the chemical processes was observed going through
the scrubbers before being vented into the ambient air. Scrubber #1 is used to
control pollutants from the Automated line and the Wastewater Treatment Plant
WWTP). Scrubber #2 is used to control pollutants from the Manual line and Hard
Metal (HM) line.
Condition 10. The following operating parameters shall be maintained within the indicated ranges:
A. Ceilcote Air Pollution Control Scrubbers.
1) The liquid flow rate shall not be less than 108 gallons per minute (gpm)
or more than 144 gpm.
They shall be monitored with equipment located such that an inspector/operator can
safely read the output any time. The readings shall be accurate to within the following
ranges:
1) Liquid flow rate - Plus or minus 5 gpm.
Status: In compliance. The flow meters for both scrubbers are located, about seven feet up,
on a wall near the automated process line. Meters were reading approximately 111
1) and 128 (#2) gallons per minute (gpm) at time of the inspection. Readings from
both flow meters are recorded weekly. The flow rate floats were replaced on August
1, 2023.
6
Condition 11. Metalcraft shall notify the Executive Secretary in writing when the installation of the
equipment listed in Condition #8.L. has been completed and is operational, as an initial
compliance inspection is required. To insure proper credit when notifying the Executive
Secretary, send your correspondence to the Executive Secretary, Attn: Compliance
Section.
If installation has not been completed within eighteen months from the date of this AO,
the Executive Secretary shall be notified in writing on the status of the installation. At
that time, the Executive Secretary shall require documentation of the continuous
installation of the operation and may revoke the AO in accordance with R307-401-11.
Status: In compliance – The installation and operation notice for the two Anodize/Alodine
Chemical Process Line (#8.L.) was received by DAQ on November 12, 2001. The
initial compliance inspection was conducted on November 19, 2001.
Limitations and Tests Procedures
Condition 12. Visible emissions from the following emission points shall not exceed the following
values:
A. All heaters and boilers - 10% opacity
B. Paint booth exhaust stacks - 5% opacity
C. All scrubber exhaust stacks - 15% opacity
D. All other points - 20% opacity
Opacity observations of emissions from stationary sources shall be conducted according
to 40 CFR 60, Appendix A, Method 9.
Status: In compliance. No visible emissions were observed from the roof stacks, or any
other point, during the inspection.
Fuels
Condition 13. The owner/operator shall use only natural gas as fuel.
Status: In compliance. The source verified that natural gas is the only fuel used on site for
the boilers and ovens. Natural gas lines were observed as the only sources of fuel
connected to equipment during the inspection.
Volatile Organic Compound (VOC) and Hazardous Air Pollutants (HAPs) Limitations
Condition 14. The paint spray booths shall be equipped with a set of paint arrestor particulate filters, or
equivalent, to control particulate emissions. All air exiting the booth shall pass through
this control system before being vented to the atmosphere (outside building/operation).
Status: In compliance. Filters were observed on all operating paint booths during the
inspection.
7
Condition 15. The plant-wide emissions of VOCs and HAPs from the paint booth operations shall not
exceed:
15.04 tons per rolling 12-month period for VOCs
0.50 tons per rolling 12-month period for Toluene
2.00 tons per rolling 12-month period for Xylene
2.50 tons per rolling 12-month period for Methyl Ethyl Ketone
1.00 tons per rolling 12-month period for Methyl Isobutyl Ketone
2.84 pounds per rolling 12-month period for Chromium Compounds
810.00 pounds per rolling 12-month period for Ethylene Glycol
10.00 pounds per rolling 12-month period for Hexamethylene-1, 6-diisocynate
111.60 pounds per rolling 12-month period for Hydrochloric Acid (HCL)
18.39 pounds per rolling 12-month period for Hydrofluoric Acid
1000.00 pounds per rolling 12-month period for Methylene Chloride
1638.00 pounds total per rolling 12-month period for all other HAPs
7.80 tons total per rolling 12-month period for all HAPs combined
Compliance with each/the limitation shall be determined on a rolling 12-month total.
Based on the twentieth day of each month, a new 12-month total shall be calculated using
data from the previous 12 months.
The VOC and HAP emissions shall be determined by maintaining a record of VOC and
HAP emitting materials used each month. The record shall include the following data for
each material used:
A. Name of the VOC and HAPs emitting material, such as: paint, adhesive, solvent,
thinner, reducers, chemical compounds, toxics, isocyanates, etc.
B. Density of each material used (pounds per gallon)
C. Percent by weight of all VOC and HAP in each material used
D. Gallons of each VOC and HAP emitting material used each
E. The amount of VOC and HAP emitted monthly by each material used shall be
calculated by the following procedure:
VOC = % VOC by Weight x [Density (lb)] x Gal Consumed x 1 ton
100) (gal) 2000 lb
HAP = % HAP by Weight x [Density (lb)] x Gal Consumed x 1 ton
100) (gal) 2000 lb
F. The amount of VOC or HAP emitted monthly from all materials used.
8
G. The amount of VOCs or HAPs reclaimed for the month shall be similarly
quantified and subtracted from the quantities calculated above, to provide the
monthly total VOC or HAP emissions.
Status: In compliance. Records were reviewed at the time of inspection and contained all
required information. VOCs and HAPs totals for the 12-month period of March
2023 – February 2024 are:
3.67 tons for VOCs
0.10 tons for Toluene
0.55 tons for Xylene
0.52 tons for Methyl Ethyl Ketone
0.18 tons for Methyl Isobutyl Ketone
1.09 pounds for Chromium Compounds
0.0 pounds for Ethylene Glycol
0.0 pounds for Hexamethylene-1, 6-diisocynate
0.0 pounds for Hydrochloric Acid (HCL)
1.17 pounds for Hydrofluoric Acid
0.00 pounds for Methylene Chloride
495.22 pounds for all other HAPs
4.76 tons for all HAPs combined
Records & Miscellaneous
Condition 16. 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 Executive Secretary 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, and the records shall be maintained for a period
of two years.
Status: In compliance. All equipment appeared to be well maintained. No emissions were
observed from the roof stacks, or any other point, during the inspection. All records
were furnished upon request. The source has an in house database called Maintain
IT Pro which is used to maintain preventative maintenance (PM) records and track
equipment repairs.
Condition 17. The owner/operator shall comply with R307-150 Series, Inventories, Testing and
Monitoring.
Status: Not applicable. This source is not currently required to submit an emission
inventory to DAQ.
9
Condition 18. The owner/operator shall comply with R307-107. General Requirements: Unavoidable
Breakdowns.
Status: In compliance. No reportable breakdowns have occurred since the previous
inspection.
AREA SOURCE RULES EVALUATION:
The following Area Source Rules were evaluated during this inspection:
R307-205. Emission Standards: Fugitive Emissions and Fugitive Dust.
Status: In compliance. This area source rule is satisfied by compliance with condition 12 of
the AO.
EMISSION INVENTORY: This source is not required to submit an emissions inventory to
the DAQ. The potential to emit (PTE) for this source from the
AO is as follows:
Pollutant Tons/yr
PM10 ................................. 0.73
SO2 ................................. 0.06
NOx ................................. 9.37
CO ................................. 6.91
VOC ............................... 15.04
Chromium compounds ..... ...0.001
Ethylene glycol ................ ...0.005
HCL ……………………0.056
Hexamethylene-1, 6-diis .. ...0.005
Hydrofluoric Acid ............ ...0.009
Methyl ethyl ketone ......... ...2.50
Methyl isobutyl ketone .... ...1.000
Methylene Chloride ......... ...0.500
Toluene ............................ ...0.500
Xylene ...…………………..2.000
Misc. HAPs ...................... ...0.819
Total HAPs ...................... ...7.80
PREVIOUS ENFORCEMENT
ACTIONS: None in the past five years.
COMPLIANCE STATUS &
RECOMMENDATIONS: Align Precision should be considered in compliance with the
conditions of the AO DAQE-817-01, dated October 4, 2001 at
the time of inspection. The facility appeared to be well
maintained and operated properly. Records were provided for
review at the time of inspection.
10
RECOMMENDATION FOR
NEXT INSPECTION: Inspect as normal. Inspect the source in conjunction with Align
Precision (Metalcraft Technologies) Building #1 (10270) and
AO dated July 6, 2000 (DAQE-412-00).
ATTACHMENTS: VEO Form.
Dale: 12/2912021
This form must be type written or computer Agegi 'Number: 9253352
State of Utah Amount Paid: 66.001
Department of Commerce
Division of Corporations & Commercial Code
Amendment to Certificate of Organization
Non-Refundable Processing Fee: $37.00
Pursuant to UCA § 48-3a-202, the individual named below causes this Amendment to the Certificate of
Organization to be delivered to the Utah Division of Corporations for filing, and states as follows:
Entity Number: 8628618-0160
The name of the limited liability company is: METALCRAFT TECHNOLOGIES INV., LLC
The Certificate of Organization shall be amended as set forth herein (complete all that apply):
There is a change in the name of the limited liability company to:
Align Precision - Cedar City, LLC
RECEIVED
DEC 29 2021
Utah Div. of Corp. & Comm. Code
The Certificate of Organization is amended as follows:
The name of the limited liability company is: Align Precision - Cedar City, LLC.
Filing date of initial certificate 03/31/2013
Future effective date (if not to be effective upon filing) 1/1/2022 at 12:01 AM (not to exceed 90 days)
Under penalties of perjury, I declare that this Amendment of Certificate of Orpn4ation has been
examined by me and is, to the best of my knowledge and belief, true, correc omplete.
Name:
Title: A-4
,717//i7 Signed:
Dated:
Under GRAMA (63-2-201), all registration information maintained by the Division is classified as public record. For confidentiality purposes, you may
use the business entity physical address rather than the residential or private address of any individual affiliated with the entity.
01/14
State of Utah
Department of Commerce
Division of Corporations and Commercial Code
I hereby certified that the foregoing has been filed
and appr ved as of this Jayed effe • ate:
day of 20
In this office of this Division and hereby issued
This Certificate thereof.
Examiner c-9 Date 1211106(
Watc_
Leigh Veillete
Division Director
DEC 29 '21 P157
UTO9 I • 3/19/2015 Wolters Kluwer Online

ScrubAir Systems, Inc. 1200 Ensell Road Lake Zurich, IL 60047 - Making Your Air Fit To Breathe!

Revised: Tuesday, March 12, 2024

TO: Dave Larkin

FM: Thomas L. O’Connor
President ScrubAir Quote #24-TLO-101R

RE: 35,000 CFM Ventilation/Scrubbing System
Per your request and my facility visit, we are pleased to quote a price to fabricate and install the following
35,000 CFM ventilation/scrubbing system designed to efficiently capture and remove the fumes and
mist generated from the new IPS line.

The following will be included:

 All duct and fittings required to connect the (7) hood connections to the inlet of the new scrubber
to be located above the new line on the roof
o Fabricated from 3/16” and 1/4” thick PVC (All duct above the roof will be white) which
will pass through the (4) new roof openings as detailed on my drawing o Designed per SMACNA recommendations for most efficient air flow

 One (1) Model SHS 35,000 CFM horizontal cross flow wet packed bed fume scrubber o Fabricated from ½” thick high impact PVC o Inlet and outlet transitions o 3’ of “Lantec Pack” Q-Pac polypropylene random dump pack o Removable spray headers o Chevron blade style mist eliminator designed to remove mist particles as small as 10
microns in diameter at 99% efficiency o (2) Magnehelic gauges designed to monitor the pressure drop across the mist eliminator
as well as the overall scrubber o Clear hinged and bolt on access doors with convenient spin off knobs to allow access to
all components of the unit
o Drain o Mounting base
o Remote recirculation tank with: (Approximately 4’ x 6’ x 42” high)
 Electronic level control with solenoid valve
 150 gpm vertical “Serfilco” recirculation pump with a 7.5 hp motor
 Flow meter
 Pressure gauge
 PH control metering system with pump, probe and indicator
 Hinged access door
 Overflow and drain

 One (1) Model #48 fiberglass “New York Blower Co” or equivalent backwards curved centrifugal
fan (Sized for 35,000 CFM at 7” SP) o 60 hp TEFC motor, 230/460 ; 3 Phase (VFD rated) o Belt driven
o All fiberglass wheel o Access door
o Flexible inlet connection
ScrubAir Systems, Inc.
1200 Ensell Road 847.550.8061 Phone Lake Zurich, IL 60047 847.550.8062 Fax

ScrubAir Systems, Inc. 1200 Ensell Road Lake Zurich, IL 60047 - Making Your Air Fit To Breathe!

o Drain o Mounting base with isolators o Rectangular to round transition on the discharge end of the fan including a high velocity discharge stack

 Control Panel with: o Circuit breaker disconnect
o Motor starters o PLC touch screen
 Start and stop motors
 GPM display
 PH display and settings
 Scrubber pressure drop display
 Alarms

 Owner’s Manual with drawing and spare parts list

 Service to (2) existing scrubbers o Replace pack (Assistance of (2) Align Precision personnel) o Install (3) access doors to each scrubber o Install (2) magnehelic gauges to each scrubber o Check spray headers and clean, if needed
o Check (2) fans for balance and belt tightness o Provide manuals for scrubbers and train Align Precision personnel

 Includes additional trip one year after the installation to check all (3) scrubbers and provide a
report

Installation by ScrubAir personnel o All joints will be heat fusion welded o All rigging equipment required to assemble o All hanger rods and fasteners will be SS o Plumbing from the remote tank to the scrubber, included (Water supply and drain by
others) o Balancing of the system o Startup and training o Roof curbs and scrubber/fan mounting equipment rails included (Flashing by others)

- ALL WORKMANSHIP AND MATERIALS ARE FULLY GUARANTEED FOR ONE (1) YEAR
AFTER STARTUP
Fulton VSRT
Vertical Spiral Rib Tubeless Steam Boiler
Specifications & Dimensions
MODEL VSRT-9.5 VSRT-10 VSRT-15 VSRT-20 VSRT-30 VSRT-40 VSRT-50 VSRT-60 VSRT-80 VSRT-100 VSRT-125 VSRT-250
SPECIFICATIONS
Fuel Input (MBH)385 400 600 800 1,200 1,600 1,993 2,392 3,200 4,000 4,990 9,800
Steam Output, F&A 212F (LB/HR)328 345 518 690 1,035 1,380 1,725 2,070 2,760 3,450 4,313 8,625
Output (MBH)318 335 503 670 1,005 1,340 1,674 2,008 2,678 3,348 4,185 8,370
Turndown Ratio 8:1 4:1 6:1 4:1 6:1 6:1 8:1 10:1 10:1 10:1 10:1 10:1
DIMENSIONS
Height w/o Trim (IN)76 70 70 79 79 97 97 97 110 125 125 144
Height w/ Trim (IN)86 77 77 86 86 107 107 107 121 140 140 148
Width w/o Trim (IN)24 33 33 33 33 49 49 49 49 63 62.75 86
Width w/ Trim (IN)40 57 57 61 60 68 130 130 71 75 75 101
Depth (IN)36 53 53 59 62 83 68 68 84 100 100 133
Burner Pull (IN)100 99 99 111 110 130 83 83 144 140 140 148
Steam Outlet - 150 psi, trim (IN)1 1 1 2 2 4 4 4 4 4 4 6
Air Inlet (IN)4 4 4 6 6 6 6 6 8 8 8 14
Flue Outlet (IN)6 6 6 8 8 10 10 10 12 10 10 14
WEIGHTS
Shipping Weight (LBS)1,850 2,900 2,900 3,400 3,400 6,000 6,000 6,000 6,700 11,600 11,800 23,600
Operating Weight (LBS)1,920 3,500 3,500 4,100 4,100 7,864 7,864 7,864 9,080 18,975 18,975 34,894
Flooded Weight (LBS)2,000 3,850 3,850 4,400 4,400 8,600 8,600 8,600 9,710 19,925 19,925 37,513
11/8/24, 8:17 AM Print Product Specs & Dimensions - Fulton
https://www.fulton.com/print-product-specs-dimensions/?_id=8 1/1

Aldrich - 307831 Page 1 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

SAFETY DATA SHEET

Version 6.8
Revision Date 09/06/2024 Print Date 09/07/2024

SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifiers
Product name : Sodium chromate

Product Number : 307831
Brand : Aldrich
Index-No. : 024-018-00-3
CAS-No. : 7775-11-3
1.2 Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Synthesis of substances

Uses advised against : The product is being supplied under the TSCA R&D Exemption
(40 CFR Section 720.36). It is the recipient’s responsibility to
comply with the requirements of the R&D exemption. The
product may not be used for a non-exempt commercial purpose
under TSCA unless appropriate consent is granted in writing by
MilliporeSigma.
1.3 Details of the supplier of the safety data sheet
Company : Sigma-Aldrich Inc.
3050 SPRUCE ST
ST. LOUIS MO 63103
UNITED STATES Telephone : [phone]
Fax : [phone]
1.4 Emergency telephone
Emergency Phone # : [phone] CHEMTREC (USA) +1-703-
527-3887 CHEMTREC (International) 24
Hours/day; 7 Days/week

SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Acute toxicity, Oral (Category 3), H301
Acute toxicity, Inhalation (Category 2), H330
Acute toxicity, Dermal (Category 4), H312

Aldrich - 307831 Page 2 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Skin corrosion (Category 1B), H314
Serious eye damage (Category 1), H318
Respiratory sensitization (Category 1), H334
Skin sensitization (Category 1), H317
Germ cell mutagenicity (Category 1B), H340
Carcinogenicity (Category 1B), H350
Reproductive toxicity (Category 1B), H360
Specific target organ toxicity - repeated exposure (Category 1), H372
Short-term (acute) aquatic hazard (Category 1), H400
Long-term (chronic) aquatic hazard (Category 1), H410
For the full text of the H-Statements mentioned in this Section, see Section 16.
2.2 GHS Label elements, including precautionary statements
Pictogram
Signal Word Danger Hazard Statements
H301 Toxic if swallowed.
H312 Harmful in contact with skin.
H314 Causes severe skin burns and eye damage.
H317 May cause an allergic skin reaction.
H330 Fatal if inhaled.
H334 May cause allergy or asthma symptoms or breathing difficulties
if inhaled.
H340 May cause genetic defects.
H350 May cause cancer.
H360 May damage fertility or the unborn child.
H372 Causes damage to organs through prolonged or repeated
exposure.
H410 Very toxic to aquatic life with long lasting effects. Precautionary Statements
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and
understood.
P260 Do not breathe dust.
P264 Wash skin thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing must not be allowed out of the
workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/ protective clothing/ eye protection/ face
protection.
P284 Wear respiratory protection.
P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor.
Rinse mouth.
P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated
clothing. Rinse skin with water/ shower.

Aldrich - 307831 Page 3 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable
for breathing. Immediately call a POISON CENTER/ doctor.
P305 + P351 + P338 +
P310
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing. Immediately call a POISON CENTER/ doctor.
P308 + P313 IF exposed or concerned: Get medical advice/ attention.
P333 + P313 If skin irritation or rash occurs: Get medical advice/ attention.
P342 + P311 If experiencing respiratory symptoms: Call a POISON CENTER/
doctor.
P363 Wash contaminated clothing before reuse.
P391 Collect spillage.
P403 + P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/ container to an approved waste disposal
plant.
2.3 Hazards not otherwise classified (HNOC) or not covered by GHS - none

SECTION 3: Composition/information on ingredients
3.1 Substances
Formula : CrNa2O4
Molecular weight : 161.97 g/mol
CAS-No. : 7775-11-3
EC-No. : 231-889-5
Index-No. : 024-018-00-3 Component Classification Concentration
Sodium chromate
Acute Tox. 3; Acute Tox.
2; Acute Tox. 4; Skin Corr.
1B; Eye Dam. 1; Resp.
Sens. 1; Skin Sens. 1;
Muta. 1B; Carc. 1B; Repr.
1B; STOT RE 1; Aquatic
Acute 1; Aquatic Chronic
1; H301, H330, H312,
H314, H318, H334, H317,
H340, H350, H360, H372,
H400, H410
M-Factor - Aquatic Acute:
10
M-Factor - Aquatic
Chronic: 10
<= 100 %

For the full text of the H-Statements mentioned in this Section, see Section 16.

Aldrich - 307831 Page 4 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

SECTION 4: First aid measures
4.1 Description of first-aid measures
General advice
First aiders need to protect themselves. Show this material safety data sheet to the doctor
in attendance.
If inhaled
After inhalation: fresh air. Immediately call in physician. If breathing stops: immediately
apply artificial respiration, if necessary also oxygen.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with
water/ shower. Call a physician immediately.
In case of eye contact
After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist.
Remove contact lenses.
If swallowed
If swallowed: give water to drink (two glasses at most). Seek medical advice immediately.
In exceptional cases only, if medical care is not available within one hour, induce vomiting
(only in persons who are wide awake and fully conscious), administer activated charcoal
(20 - 40 g in a 10% slurry) and consult a doctor as quickly as possible. Do not attempt to
neutralise.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section
2.2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available

SECTION 5: Firefighting measures
5.1 Extinguishing media
Suitable extinguishing media
Use extinguishing measures that are appropriate to local circumstances and the
surrounding environment.
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
5.2 Special hazards arising from the substance or mixture
Sodium oxides
Chromium oxides
Not combustible.
Ambient fire may liberate hazardous vapours.
5.3 Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by
keeping a safe distance or by wearing suitable protective clothing.

Aldrich - 307831 Page 5 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

5.4 Further information
Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire
extinguishing water from contaminating surface water or the ground water system.

SECTION 6: Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Avoid generation and inhalation of dusts in all
circumstances. Avoid substance contact. Ensure adequate ventilation. Evacuate the
danger area, observe emergency procedures, consult an expert.
For personal protection see section 8.
6.2 Environmental precautions
Do not let product enter drains.
6.3 Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions
(see sections 7 and 10). Take up carefully. Dispose of properly. Clean up affected area.
Avoid generation of dusts.
6.4 Reference to other sections
For disposal see section 13.

SECTION 7: Handling and storage
7.1 Precautions for safe handling
Advice on safe handling
Work under hood. Do not inhale substance/mixture.
Hygiene measures
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands
and face after working with substance.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions
Tightly closed. Dry. Keep in a well-ventilated place. Keep locked up or in an area accessible
only to qualified or authorized persons.

hygroscopic
Storage class
Storage class (TRGS 510): 6.1A: Combustible, acute toxic Cat. 1 and 2 / very toxic
hazardous materials
7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

Aldrich - 307831 Page 6 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

SECTION 8: Exposure controls/personal protection
8.1 Control parameters
Ingredients with workplace control parameters
Component CAS-No. Value Control
parameters
Basis
Sodium chromate

7775-11-3

CEIL 1mg/10m3 USA. Occupational Exposure
Limits (OSHA) - Table Z-2
TWA 0.0002
mg/m3
USA. ACGIH Threshold Limit
Values (TLV)
Remarks Dermal Sensitization
Respiratory sensitization
Confirmed human carcinogen
Danger of cutaneous absorption
STEL 0.0005
mg/m3
USA. ACGIH Threshold Limit
Values (TLV)
Dermal Sensitization
Respiratory sensitization
Confirmed human carcinogen
Danger of cutaneous absorption
PEL 0.005 mg/m3 OSHA Specifically Regulated
Chemicals/Carcinogens
OSHA specifically regulated carcinogen
TWA 0.0002
mg/m3
USA. NIOSH Recommended
Exposure Limits
Potential Occupational Carcinogen
8.2 Exposure controls
Appropriate engineering controls
Immediately change contaminated clothing. Apply preventive skin protection. Wash
hands and face after working with substance.
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate
government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety
goggles
Skin protection
Handle with impervious gloves.
This recommendation applies only to the product stated in the safety data sheet,
supplied by us and for the designated use. When dissolving in or mixing with other
substances and under conditions deviating from those stated in EN 16523-1 please
contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell,
Internet: www.kcl.de). Full contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:KCL 741 Dermatril® L

Aldrich - 307831 Page 7 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:KCL 741 Dermatril® L
Body Protection
protective clothing
Respiratory protection
Recommended Filter type: Filter type P3
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory
protective devices are carried out according to the instructions of the producer.
These measures have to be properly documented.
required when dusts are generated.
Our recommendations on filtering respiratory protection are based on the following
standards: DIN EN 143, DIN 14387 and other accompanying standards relating to
the used respiratory protection system.

Control of environmental exposure
Do not let product enter drains.

SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
a) Appearance Form: solid
Color: yellow
b) Odor No data available
c) Odor Threshold No data available
d) pH No data available
e) Melting
point/freezing point
Melting point/ range: 792 °C (1458 °F) - (ECHA)
f) Initial boiling point
and boiling range
No data available
g) Flash point ()Not applicable
h) Evaporation rate No data available
i) Flammability (solid,
gas)
No data available
j) Upper/lower
flammability or
explosive limits
No data available
k) Vapor pressure No data available
l) Vapor density No data available
m) Density 2.71 - 2.73 g/cm3

Aldrich - 307831 Page 8 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Relative density No data available
n) Water solubility No data available
o) Partition coefficient:
n-octanol/water
Not applicable for inorganic substances
p) Autoignition
temperature
No data available
q) Decomposition
temperature
No data available
r) Viscosity No data available
s) Explosive properties No data available
t) Oxidizing properties none
9.2 Other safety information
No data available

SECTION 10: Stability and reactivity
10.1 Reactivity
No data available
10.2 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
10.3 Possibility of hazardous reactions
No data available
10.4 Conditions to avoid
no information available
10.5 Incompatible materials
Strong reducing agents
10.6 Hazardous decomposition products
In the event of fire: see section 5

SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Oral - Rat - 52 mg/kg
Remarks: (IUCLID)
Acute toxicity estimate Inhalation - 4 h - 0.0501 mg/l - dust/mist

(Expert judgment)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
LD50 Dermal - Rabbit - 1,600 mg/kg
Remarks: (IUCLID)

Aldrich - 307831 Page 9 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Skin corrosion/irritation
Remarks: Causes skin burns.
Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Serious eye damage/eye irritation
Remarks: Causes serious eye damage.
Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Respiratory or skin sensitization
May cause allergic respiratory and skin reactions Classified according to Regulation (EU)
1272/2008, Annex VI (Table 3.1/3.2)
Germ cell mutagenicity
May cause genetic defects.
Carcinogenicity
Presumed to have carcinogenic potential for humans
IARC: 1 - Group 1: Carcinogenic to humans (Sodium chromate)
NTP: No ingredient of this product present at levels greater than or equal to 0.1% is
identified as a known or anticipated carcinogen by NTP.
OSHA: OSHA specifically regulated carcinogen (Sodium chromate)
Reproductive toxicity
May damage the unborn child.
May damage fertility.
Specific target organ toxicity - single exposure
No data available
Specific target organ toxicity - repeated exposure
Causes damage to organs through prolonged or repeated exposure.
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Aspiration hazard
No data available
11.2 Additional Information
Repeated dose toxicity - Rat - male and female - Oral - 90 Days - NOAEL (No observed
adverse effect level) - 62.5 mg/kg
Remarks: (ECHA)

RTECS: GB2955000
Stomach - Irregularities - Based on Human Evidence

Stomach - Irregularities - Based on Human Evidence

SECTION 12: Ecological information
12.1 Toxicity Toxicity to fish LC50 - Pimephales promelas (fathead minnow) - 33.2 mg/l - 96.0 h
Remarks: (ECHA)

Aldrich - 307831 Page 10 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Toxicity to daphnia
and other aquatic
invertebrates
EC50 - Daphnia magna (Water flea) - 0.021 mg/l - 48 h
Remarks: (ECOTOX Database)

12.2 Persistence and degradability
The methods for determining biodegradability are not applicable to inorganic substances.
12.3 Bioaccumulative potential
No data available
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not
conducted
12.6 Endocrine disrupting properties
No data available
12.7 Other adverse effects
No data available

SECTION 13: Disposal considerations
13.1 Waste treatment methods
Product
Waste material must be disposed of in accordance with the national and local regulations.
Leave chemicals in original containers. No mixing with other waste. Handle uncleaned
containers like the product itself.

SECTION 14: Transport information
DOT (US)
UN number: 3290 Class: 6.1 (8) Packing group: II
Proper shipping name: Toxic solid, corrosive, inorganic, n.o.s. (Sodium chromate)
Reportable Quantity (RQ): 10 lbs
Poison Inhalation Hazard: No

IMDG
UN number: 3290 Class: 6.1 (8) Packing group: II EMS-No: F-A, S-B
Proper shipping name: TOXIC SOLID, CORROSIVE, INORGANIC, N.O.S. (Sodium chromate)
Marine pollutant : yes

IATA
UN number: 3290 Class: 6.1 (8) Packing group: II

Aldrich - 307831 Page 11 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

Proper shipping name: Toxic solid, corrosive, inorganic, n.o.s. (Sodium chromate)

SECTION 15: Regulatory information
CERCLA Reportable Quantity
Components CAS-No. Component
RQ (lbs)
Calculated product
RQ (lbs)
Sodium chromate 7775-11-3 10 10
SARA 304 Extremely Hazardous Substances Reportable Quantity
This material does not contain any components with a section 304 EHS RQ.
SARA 302 Extremely Hazardous Substances Threshold Planning Quantity
This material does not contain any components with a section 302 EHS TPQ.
SARA 311/312
Hazards

: Acute Health Hazard
Chronic Health Hazard

SARA 313

: The following components are subject to reporting
levels established by SARA Title III, Section 313:

Sodium
chromate

7775-11-3 >= 90 - <= 100 %
US State Regulations
Massachusetts Right To Know
Sodium chromate 7775-11-3
Pennsylvania Right To Know
Sodium chromate 7775-11-3
Maine Chemicals of High Concern
Product does not contain any listed chemicals
Vermont Chemicals of High Concern
Product does not contain any listed chemicals
Washington Chemicals of High Concern
Product does not contain any listed chemicals
California Prop. 65
WARNING: This product can expose you to chemicals including Sodium chromate, which
is/are known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.
The ingredients of this product are reported in the following inventories:
TSCA

: All substances listed as active on the TSCA inventory

TSCA list
No substances are subject to a Significant New Use Rule.

Aldrich - 307831 Page 12 of 12

The life science business of Merck KGaA, Darmstadt, Germany
operates as MilliporeSigma in the US and Canada

The following substance(s) is/are subject to TSCA 12(b) export notification requirements:
Sodium chromate 7775-11-3

SECTION 16: Other information
Further information
The information is believed to be correct but is not exhaustive and will be used solely as
a guideline, which is based on current knowledge of the chemical substance or mixture
and is applicable to appropriate safety precautions for the product. It does not represent
any guarantee of the properties of the product. Sigma-Aldrich Corporation and its
Affiliates shall not be held liable for any damage resulting from handling or from contact
with the above product. See www.sigma-aldrich.com and/or the reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2020 Sigma-Aldrich Co. LLC. License granted to make unlimited paper copies
for internal use only.
The branding on the header and/or footer of this document may temporarily not visually
match the product purchased as we transition our branding. However, all of the
information in the document regarding the product remains unchanged and matches the
product ordered. For further information please contact [e-mail].
Version: 6.8 Revision Date: 09/06/2024 Print Date: 09/07/2024

Lucia Mason <[e-mail]>
Fwd: DAQE-817-01 Reduction in Air Pollutants
5 messages
Alan Humpherys <[e-mail]>Tue, Aug 27, 2024 at 11:23 AM
To: Lucia Mason <[e-mail]>
Cc: Dylan Frederick <[e-mail]>
Lucia,
Please see the attached project for a reduction in air pollutants. Please let me know if you have any questions.
Site ID: 10270
Peer: Dylan
Thanks,
Alan
---------- Forwarded message ---------
From: Eric Lewis (CCY) <[e-mail]>
Date: Tue, Aug 27, 2024 at 10:46 AM
Subject: DAQE-817-01 Reduction in Air Pollutants
To: [e-mail] <[e-mail]>
Cc: Dylan Frederick <[e-mail]>
Alan,

Please find the attached notification letter regarding our reduction in air pollutants for AO DAQE-817-01 as well as the supporting documentation titled “Annual
Emissions Calculations (2024 Reduction in Air Pollutants)” and let me know if you have any questions or need anything else from me.

I appreciate your help,
ERIC LEWIS
EHS Coordinator
O:435.586.3871
[e-mail]
11/25/24, 1:45 PM State of Utah Mail - Fwd: DAQE-817-01 Reduction in Air Pollutants
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1808562291260950790&simpl=msg-f:1808562291260950790&simpl=msg-a:r-3034571132039392163&simpl=…1/3
ALIGN PRECISION – Cedar City | 526 Aviation Way | Cedar City, UT 84721
EXPORT COMPLIANCE
This email, including its attachments, may contain technical data as defined by Title 22 CFR 120.10 that is controlled under the United States ExportAdministration Regulations ("EAR") or the International Traffic in Arms Regulations ("ITAR"). If this information is shared in any form to a non-US
person it is then considered an export requiring proper authorization from the U.S. Department of Commerce, or the U.S. Department of State. If youare not the intended recipient you must not copy, distribute, or use this email or the information contained in it for any purpose other than to notify us.
If you have received this message in error, please notify the sender immediately, and delete this email from your system.
CONFIDENTIALITY & ELECTRONIC SIGNATUREThis e-mail and any attachments contain information which may be proprietary, confidential, or subject to export regulations, and is only meant for theintended recipient(s). Any disclosure, copying, distribution or use is prohibited, if not otherwise explicitly agreed by ALIGN PRECISION. If received inerror, please delete it immediately from your system and notify the sender properly. This message is not meant to constitute an electronic signature orintent to contract electronically, unless otherwise specifically stated
--
Alan Humpherys
Manager | Minor NSR Section
P: [phone]
F: [phone]
airquality.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
2 attachments
Annual Emissions Calculations (2024 Reduction in Air Pollutants).pdf
85K
2024 Reduction in Air Pollutants Notification Letter.pdf
183K
Lucia Mason <[e-mail]>Tue, Aug 27, 2024 at 11:37 AM
To: Alan Humpherys <[e-mail]>
Sounds good. Thanks.
[Quoted text hidden]
Lucia Mason <[e-mail]>Wed, Aug 28, 2024 at 4:31 PM
To: Alan Humpherys <[e-mail]>
Hey Alan,
11/25/24, 1:45 PM State of Utah Mail - Fwd: DAQE-817-01 Reduction in Air Pollutants
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1808562291260950790&simpl=msg-f:1808562291260950790&simpl=msg-a:r-3034571132039392163&simpl=…2/3
I've been working on two Align Precision 10- year reviews. I think AO DAQE-817-01 belongs to source 12202 instead of 10270. Is it possible there was a site ID
mixup?
[Quoted text hidden]
Alan Humpherys <[e-mail]>Wed, Aug 28, 2024 at 4:36 PM
To: Lucia Mason <[e-mail]>
There could have been a site mix up. As long as you are able to research the issue and make a solid explanation of what happened, you can move forward. You
can also check with Compliance to get their input too.
[Quoted text hidden]
Lucia Mason <[e-mail]>Wed, Aug 28, 2024 at 4:38 PM
To: Alan Humpherys <[e-mail]>
Ok. Thanks.
[Quoted text hidden]
11/25/24, 1:45 PM State of Utah Mail - Fwd: DAQE-817-01 Reduction in Air Pollutants
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1808562291260950790&simpl=msg-f:1808562291260950790&simpl=msg-a:r-3034571132039392163&simpl=…3/3