DAQ-2025-001250

DAQE-AN121300005-25

{{$d1 }}

Chris Rose
Staker & Parson Companies
89 West 13490 South, Suite 100
Draper, UT 84020
[e-mail]

Dear Mr. Rose:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN0121300004-09 for a
10-Year Review and Permit Updates
Project Number: N121300005

The attached Approval Order (AO) is issued pursuant to the Division of Air Quality conducting a
10-year administrative review of this source and its respective AO. Staker & Parson Companies
must comply with the requirements of this AO, all applicable state requirements (R307), and Federal
Standards.

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

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:KA:jg

cc: Utah County Health Department

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 4, 2025

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

{{#s=Sig_es_:signer1:signature}}
{{#d1=date1_es_:signer1:date:format(date, "mmmm d, yyyy")}}
{{#d2=date1_es_:signer1:date:format(date, "mmmm d, yyyy"):align(center)}}

APPROVAL ORDER
DAQE-AN121300005-25
Administrative Amendment to Approval Order
DAQE-AN0121300004-09 for a 10-Year Review
and Permit Updates

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

Issued to
Staker & Parson Companies - Gomex Pit

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

March 4, 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.................................................................................................................. 3
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 4
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 6
PERMIT HISTORY ..................................................................................................................... 8
ACRONYMS ................................................................................................................................. 9

DAQE-AN121300005-25
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Staker & Parson Companies Staker & Parson Companies - Gomex Pit

Mailing Address Physical Address
89 West 13490 South, Suite 100 Draper, UT 84020 Gomex Road Near Spanish Fork, approximately 1 mile south of Moark Junction along Highway 6
Spanish Fork, UT 84660

Source Contact UTM Coordinates
Name: Chris Rose 450,263 m Easting
Phone: [phone],436,177 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12
SIC code 1442 (Construction Sand & Gravel)

SOURCE INFORMATION
General Description
Staker & Parson Companies owns and operates the Gomex Pit in Spanish Fork, Utah County. The Gomex
Pit is an aggregate pit with various crushers, screens, conveyors, feeders, and other associated equipment.
Staker & Parson Companies shall not produce more than one million tons of aggregate and 100,000 cubic
yards of concrete per year.

NSR Classification
10-Year Review

Source Classification
Located in Southern Wasatch Front O3 NAA, Provo UT PM2.5 NAA
Utah County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants
Title V (Part 70) Area Source

Project Description
This is a 10-year review to update the language, format, and layout of the Approval Order to match
current DAQ permitting standards.
DAQE-AN121300005-25
Page 4

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)
Carbon Monoxide 0 2.57
Nitrogen Oxides 0 6.95
Particulate Matter - PM10 0 15.11
Particulate Matter - PM2.5 0 15.11
Sulfur Dioxide 0 0.62
Volatile Organic Compounds 0 0.61

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 R307-150 Series. Inventories, Testing and Monitoring. [R307-150] I.7 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107]

DAQE-AN121300005-25
Page 5

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Gomex Pit
II.A.2 Roadrunner Crushing Plant
Rollercone w/6' x 16' Incline Screen
Serial #: 00R0IL455

II.A.3 Three Deck Wash Screen Size: 6' x 20' Manufacture Date: 1996
II.A.4 Power Screen
Serial #: 6505103

II.A.5 Variable Speed Belt Feeder Manufacture Date: 1992
II.A.6 66" Cone Crusher
Manufacture Date: 1982

II.A.7 66" Cone Crusher Manufacture Date: 1985
II.A.8 66" Finehead Screen
Manufacture Date: 1982

II.A.9 54" Cone Crusher w/ 6' x 16' Screen Manufacture Date: 1975
II.A.10 Four (4), 6' x 20' Three Deck Screens
Manufacture Date: 1996 (all models)

II.A.11 30" x 42" Jaw Crusher Serial #: UH-3010
II.A.12 Vibrating Plate Feeder and Grizzly
Manufacture Date: 1996

II.A.13 Belly Dump Mixing Bin 2-24" x 10' Conveyors
II.A.14 8' x 12' Surge Bin
Serial #: F10AX514
II.A.15 36" x 50" Feeder
II.A.16 36" Sand Screw
II.A.17 60" Sand Washing Screw Manufacture Date: 1954
II.A.18 Various Conveyors
DAQE-AN121300005-25
Page 6

II.A.19 Other Associated Equipment including trucks, loaders, and dozers II.A.20 12 cubic yard Concrete Aggregate Batcher Includes: Feeder Bin
Manufacturer: Ross Bandit
II.A.21 Cement Silo and Fly Ash Silo Includes: Dust Collectors

SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS
II.B.1 The Gomex Pit shall be subject to the following: II.B.1.a The owner/operator shall not exceed produce more than the following: A. 1,000,000 tons of processed aggregate material per rolling 12-month period in the aggregate plant B. 100,000 cubic yards of concrete per rolling 12-month period in the concrete batch plant. [R307-401-8]
II.B.1.a.1 The owner/operator shall:

A. Determine production by scale house records or vendor receipts
B. Calculate a new 12-month total by the 20th day of each month using data from the
previous 12 months
C. Record production on a daily basis
D. Keep records of production for all periods when the plant is in operation.

[R307-401-8]
II.B.1.b The owner/operator shall not operate the following plants more than the following: A. 3,500 hours of aggregate plant operation per rolling 12-month period B. 3,000 hours of concrete plant operation per rolling 12-month period. [R307-401-8]
DAQE-AN121300005-25
Page 7

II.B.1.b.1 The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an operations log B. Calculate a new 12-month total by the 20th day of each month using data from the previous 12 months C. Record hours of operation on a daily basis D. Keep hours of operation records for all periods when the plant is in operation. [R307-401-8]
II.B.1.c The owner/operator shall not allow visible emissions from the following emission points to exceed the following values:

A. All crushers - 12% opacity
B. All screens - 7% opacity
C. All conveyor transfer points - 7% opacity

D. All bin vent, silo vent or baghouse emission points - 10% opacity
E. All diesel engines - 20% opacity
F. All conveyor drop points - 20% opacity

G. Concrete Batch Plant - 7% opacity
H. All other points - 20% opacity.
[R307-312-4, R307-401-8]

II.B.1.c.1 Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-305-3]
II.B.2 All Haul Roads and Fugitive Dust Sources on site shall be subject to the following:
II.B.2.a The owner/operator shall comply with a fugitive dust control plan (FDCP) acceptable to the Director for control of all dust sources associated with the Gomex Pit. The owner/operator shall comply with the most current FDCP approved by the Director. [R307-309-6]
II.B.2.b The owner/operator shall not allow visible emissions from any fugitive dust source to exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5]

II.B.2.b.1 Opacity observations of fugitive dust from intermittent sources shall be conducted according to 40 CFR 60, Appendix A, Method 9; however, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source. For fugitive dust generated by mobile sources, visible emissions shall be measured at the densest point of the plume but at a point not less than one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-309-5]
DAQE-AN121300005-25
Page 8

II.B.2.c The owner/operator shall comply with all applicable requirements of R307-309 Nonattainment and Maintenance Areas for PM10 and PM2.5: Fugitive Emissions and Fugitive Dust. The owner/operator shall comply with all applicable requirements of R307-312 Aggregate Processing Operations for PM2.5 Nonattainment Areas. [R307-309, R307-312]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN0121300004-09 dated November 24, 2009

DAQE-AN121300005-25
Page 9

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-
RN121300005 February 3, 2025 Chris Rose Staker & Parson Companies 89 West 13490 South Suite 100 Draper, UT 84020 [e-mail] Dear Chris Rose, Re: Engineer Review: Administrative Amendment to Approval Order DAQE-AN0121300004-09 for a 10-Year Review and Permit Updates Project Number: N121300005 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. Staker & Parson Companies should complete this review within 10 business days of receipt. Staker & Parson Companies should contact Katie Andersen at [phone] if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Katie Andersen 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 Staker & Parson Companies does not respond to this letter within 10 business days, the project will move forward without source concurrence. If Staker & Parson Companies 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
Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor

Commented [AH1]: Move suite up to the main address line.

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 1
UTAH DIVISION OF AIR QUALITY ENGINEER REVIEW
SOURCE INFORMATION Project Number N121300005 Owner Name Staker & Parson Companies Mailing Address 89 West 13490 South Suite 100 Draper, UT, 84020 Source Name Staker & Parson Companies- Gomex Pit Source Location Gomex Rd Near Spanish Fork, approximately 1 mile south of Moark Junction along Highway 6 Spanish Fork, UT 84660 UTM Projection 450,263 m Easting, 4,436,177 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 1442 (Construction Sand & Gravel) Source Contact Chris Rose Phone Number [phone] Email [e-mail] Billing Contact Chris Rose Phone Number [phone] Email [e-mail] Project Engineer Katie Andersen, Engineer Phone Number [phone] Email [e-mail] Notice of Intent (NOI) Submitted October 9, 2024 Date of Accepted Application January 27, 2025
Commented [AH2]: Move up a line.

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 2
SOURCE DESCRIPTION General Description Staker & Parson Companies owns and operates the Gomex Pit in Spanish Fork, Utah County. The Gomex Pit is an aggregate pit with various crushers, screens, conveyors, feeders, and other associated equipment. Staker & Parson Companies shall not produce more than one million tons of aggregate and 100,000 cubic yards of concrete per year. NSR Classification: 10 Year Review Source Classification Located in the Southern Wasatch Front O3 NAA and Provo UT PM2.5 NAA Utah County Airs Source Size: B Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants Title V (Part 70) Area Source Project Proposal Administrative Amendment to Approval Order DAQE-AN0121300004-09 for a 10-Year Review and Permit Updates Project Description This is a 10-Year Review to update the language, format, and layout of the Approval Order to match current DAQ permitting standards. EMISSION IMPACT ANALYSIS This is a 10-Year Review to update the language, layout, and format of the Approval Order to match current DAQ permitting standards. There are no changes to equipment nor emissions. Thus, modeling is not required at this time. [Last updated January 21, 2025]

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 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)
Carbon Monoxide 0 2.57
Nitrogen Oxides 0 6.95 Particulate Matter - PM10 0 15.11 Particulate Matter - PM2.5 0 15.11 Sulfur Dioxide 0 0.62
Volatile Organic Compounds 0 0.61 Note: Change in emissions indicates the difference between previous AO and proposed modification.

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 4
Review of BACT for New/Modified Emission Units 1. BACT review regarding 10-Year Review This is a 10-Year Review to update the language, layout, and format of the Approval Order to match current DAQ permitting standards. There are no changes to equipment nor emissions. Thus, a BACT analysis is not required at this time. [Last updated January 21, 2025]
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 R307-150 Series. Inventories, Testing and Monitoring. [R307-150]
I.7 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107]

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 5
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 Gomex Pit II.A.2 Roadrunner Crushing Plant Rollercone w/6' x 16' Incline Screen Serial #: 00R0IL455
II.A.3 Three Deck Wash Screen Size: 6' x 20' Manufacture Date: 1996 II.A.4 Power Screen Serial #: 6505103 II.A.5 Variable Speed Belt Feeder Manufacture Date: 1992 II.A.6 66" Cone Crusher Manufacture Date: 1982 II.A.7 66" Cone Crusher Manufacture Date: 1985
II.A.8 66" Finehead Screen Manufacture Date: 1982 II.A.9 54" Cone Crusher w/ 6' x 16' Screen Manufacture Date: 1975 II.A.10 Four (4), 6' x 20' Three Deck Screens Manufacture Date: 1996 (all models) II.A.11 30" x 42" Jaw Crusher Serial #: UH-3010 II.A.12 Vibrating Plate Feeder and Grizzly Manufacture Date: 1996 II.A.13 Belly Dump Mixing Bin 2-24" x 10' Conveyors II.A.14 8' x 12' Surge Bin Serial #: F10AX514

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 6
II.A.15 36" x 50" Feeder II.A.16 36" Sand Screw II.A.17 60" Sand Washing Screw Manufacture Date: 1954 II.A.18 Various Conveyors II.A.19 Other Associated Equipment including trucks, loaders, and dozers II.A.20 12 cubic yard Concrete Aggregate Batcher Includes: Feeder Bin Manufacturer: Ross Bandit II.A.21 Cement Silo and Fly Ash Silo Includes: Dust Collectors

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 The Gomex Pit shall be subject to the following: II.B.1.a NEW The owner/operator shall not produce more than the following: A. 1,000,000 tons of processed aggregate material per rolling 12-month period
in the aggregate plant B. 100,000 cubic yards of concrete per rolling 12-month period
in the concrete batch plant. [R307-401-8] II.B.1.a.1 NEW The owner/operator shall: A. Determine production by scale house records or vendor receipts B. Calculate a new 12-month total by the 20th day of each month using data from the previous 12 months C. Record production on a daily basis D. Keep records of production for all periods when the plant is in operation. [R307-401-8]
Deleted: exceed
Deleted: production limits
Deleted: production

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 7
II.B.1.b NEW The owner/operator shall not operate the following plants more than the following: A. 3,500 hours of aggregate plant operation per rolling 12-month period B. 3,000 hours of concrete plant operation per rolling 12-month period. [R307-401-8] II.B.1.b.1 NEW The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an operations log B. Calculate a new 12-month total by the 20th day of each month using data
from the previous 12 months C. Record hours of operation on a daily basis D. Keep hours of operation records for all periods when the plant is in operation. [R307-401-8] II.B.1.c NEW The owner/operator shall not allow visible emissions from the following emission points to exceed the following values: A. All crushers - 12% opacity B. All screens - 7% opacity C. All conveyor transfer points - 7% opacity
D. All bin vent, silo vent or baghouse emission points - 10% opacity E. All diesel engines - 20% opacity F. All conveyor drop points - 20% opacity G. Concrete Batch Plant - 7% opacity
H. All other points - 20% opacity. [R307-312-4, R307-401-8] II.B.1.c.1 Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-305-3] II.B.2 All Haul Roads and Fugitive Dust Sources on site shall be subject to the following: II.B.2.a NEW The owner/operator shall comply with a fugitive dust control plan (FDCP) acceptable to the Director for control of all dust sources associated with the Gomex Pit. The owner/operator shall comply with the most current FDCP approved by the Director. [R307-309-6] II.B.2.b NEW The owner/operator shall not allow visible emissions from any fugitive dust source to exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5]
Deleted: exceed
Deleted: operational hour limits
Deleted: 401-8

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 8
II.B.2.b.1 NEW Opacity observations of fugitive dust from intermittent sources shall be conducted according to 40 CFR 60, Appendix A, Method 9; however, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source. For fugitive dust generated by mobile sources, visible emissions shall be measured at the densest point of the plume but at a point not less than one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-309-5] II.B.2.c NEW The owner/operator shall comply with all applicable requirements of R307-309 Nonattainment and Maintenance Areas for PM10 and PM2.5: Fugitive Emissions and Fugitive Dust. The owner/operator shall comply with all applicable requirements of R307-312 Aggregate Processing Operations for PM2.5 Nonattainment Areas. [R307-309, R307-312]
Deleted: 401-8

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 Page 9
PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN0121300004-09 dated November 24, 2009
REVIEWER COMMENTS 1. Comment regarding 10-Year Review: This is a 10-Year Review to update the language, layout, and format of the Approval Order to match current DAQ permitting standards. There are no changes to equipment nor emissions at this time. Recent compliance inspection reports have noted that all equipment has been removed from the site and the location is being used as a yard for landscaping products. The source wishes to maintain the equipment that is listed in this AO for potential future use. As the source has not operated emission units at this site in several years, the DAQ should be notified when operation resumes. PM2.5 emissions have not been accounted for in prior approval orders. PM2.5 emissions have been added to this AO based on the conservative assumption that PM2.5 emissions equal PM10 emissions. As there are no current combustion units on site, CO2e emissions have not been estimated. When the source goes through the next modification, these emissions should be verified. AO DAQE-AN0121300004-09 contained fuel consumption requirements under II.B.3. These fuel consumption requirements apply to mobile equipment on site. NSR reviews and approval orders regulate stationary sources and do not regulate mobile equipment. Therefore, these conditions have been removed in this permit update. [Last updated February 3, 2025] 2. Comment regarding Federal Rule Applicability: 40 CFR 60 Subpart OOO: Standards of Performance for Nonmetallic Mineral Processing Plants 40 CFR 60 (NSPS) Subpart OOO applies to owners and operators of crushers, grinding mills, screening operations, bucket elevators, belt conveyors, bagging operations, storage bins, and enclosed truck loading stations. The source operates various crushers, screens, and conveyor belts that are subject to this subpart. [Last updated January 21, 2025] 3. 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 source The source is not a major source nor a Title IV source. The source is not subject to 40 CFR 61 (NESHAP) nor 40 CFR 63 (MACT) requirements. The source is subject to 40 CFR 60 Subpart OOO. Therefore, Title V applies to this source as an area source. [Last updated January 27, 2025]

Engineer Review N121300005: Staker & Parson Companies- Gomex Pit February 3, 2025 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 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
DAQC-1254-20
Site ID 12130 (B1)
TO:
THROUGH:
FROM:
DATE:
SUBJECT:
MEMORANDUM
FILE — Staker & Parson Companies- Gomex Pit
Rik Ombach, Minor Source Compliance Section Manager RO
Paul Bushman, Environmental Scientist
September 4, 2020
Full Compliance Evaluation, Minor, Utah County
INSPECTION DATE:
SOURCE LOCATION:
SOURCE CONTACTS:
OPERATING STATUS:
PROCESS DESCRIPTION:
APPLICABLE REGULATIONS:
SOURCE EVALUATION:
EMISSION INVENTORY:
September 2, 2020
Gomex Pit, Spanish Fork UT 84660
The entrance is marked as 'Gomex Rd.' and is on the south side
of US-6 East, approximately one mile west of Spanish Fork
Canyon and approximately, 1000 feet east of the Chevron station
on Powerhouse Road. The pit is just east of the wind turbines.
There is a Staker Parson sign when you turn onto Gomex Road.
Nakeasha Scovill, Environmental Specialist:
385-266-2060, [e-mail]
Not Operating. The entrance was gated and locked.
The source location is permitted as an aggregate pit but is
currently operating solely as a yard for landscaping products.
All equipment listed in the Approval Order has been removed
from the source location.
Approval Order (AO) DAQE-AN0121300004-09, dated
November 24, 2009
NSPS (Part 60), A: General Provisions
NSPS (Part 60), 000: Standards of Performance for
Nonmetallic Mineral Processing Plants
According to Nakeasha Scovill with Staker Parson, the pit has
not operated for more than 5 years. Nakeasha said that if the pit
is operated again it would be for recycle road base only, but that
there are no plans at this time.
The emissions listed below are an estimate of the total potential emissions from Staker & Parson
Companies- Gomex Pit on the Approval Order (AO) DAQE-AN0121300004-09, dated November 24,
2009. The following information was supplied for supplemental nurnoses only.
1
DAQ-2020-011305
Estimated Criteria Pollutant Potential Emissions
Carbon Monoxide
Nitrogen Oxides
Particulate Matter - PM10
Sulfur Dioxide
Volatile Organic Compounds
2.57 tons/yr
6.95 tons/yr
15.11 tons/yr
0.62 tons/yr
0.61 tons/yr
Estimated Hazardous Air Pollutant Potential Emissions
Staker & Parson Companies- Gomex Pit Emissions Inventory data for the 2017 activity year are recorded
as follows:
Pollutant
Particulate Matter - PM10(Filt + Cond)
Particulate Matter - PM10Filterable
Particulate Matter - PM2 5 (Filt + Cond)
Particulate Matter — PM2 5 Filterable
Sulfur Dioxide
Nitrogen Oxides
Volatile Organic Compounds
Carbon Monoxide
Tons/vr
.0129
.0129
.00195
.00195
0
0
0
0
Status: The emissions inventory for 2017 is well under the calculated potential to emit.
No enforcement actions within the past five years.
Compliance not determined. No equipment was on site, and the
site is currently solely operating as a yard for landscaping
products. The site has not operated as an aggregate pit for many
years.
PREVIOUS ENFORCEMENT
ACTIONS:
COMPLIANCE STATUS &
RECOMMENDATIONS:
HPV STATUS: Not Applicable.
RECOMMENDATION FOR
NEXT INSPECTION:
RECOMMENDATION FOR
NSR PERMITTING REVIEW:
A decreased inspection frequency is recommended. Contact
Staker Parson to see if the source is operating.
None
ATTACHMENTS: Email correspondence
2
9/4/2020 State of Utah Mail - Staker Parson Gomex Pit Air Quality Inspection
Paul Bushman <[e-mail]>
Staker Parson Gomex Pit Air Quality Inspection
Scovill, Nakeasha (Staker Parson) <[e-mail]> Thu, Sep 3, 2020 at 4:25 PM
To: Paul Bushman <[e-mail]>
Paul,
The Gomex pit hasn't had any equipment on-site for at least 5 years. If the pit is to be operated again it would be for
recycle road base only, but there are currently no definite plans at this time. Let me know if you need anything else.
Thank you,
Nakeasha Scovill
Environmental Specialist
West Division
Staker Parson
A CRH COMPANY
89 West 13490 South
Draper, Utah 84020
0 [phone]
C [phone]
E [e-mail]
[Quoted text hidden]
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you are
expecting this email and know the contents are safe. ATTENTION: Ce courriel vient de l'exterieur de l'entreprise. Ne
cliquez pas sur les liens, et n'ouvrez pas les pièces jointes, a moins que vous ne connaissiez l'expéditeur du courriel et
savez que le contenu est sécuritaire.
https://mail.google.com/mail/u/0?ik=36fad28139&view=pt&search=all&permmsgid=msg-f%3A1676853303743727831&simpl=msg-f%3A16768533037... 1/1
Katie Andersen <[e-mail]>
Gomex Pit DAQ 10-Year Review Permit Update
4 messages
Katie Andersen <[e-mail]>Thu, Jan 16, 2025 at 4:02 PM
To: [e-mail]
Chris,
Thank you for taking the time to discuss the Gomex Pit with me today.
To update the current Approval Order through a 10-Year Review, will you provide/confirm the following information:
1. The source contact is currently listed as Mike Dalley on the current Approval Order. Since you are the contact for
environmental permits, I will replace his information with yours. I have your email as [e-mail] and
phone number as 385-400-2119.
2. The current business name is Staker & Parson Companies. Is this correct?
2b. The site name is Gomex Pit, is this correct?
3. The business address and mailing address is: 89 West 13490 South Suite 100 Draper Utah 84020. Is that correct?
4. The site address is: Near Spanish Fork ~1 mile south of Moark Junction along Highway 6, Spanish Fork, Utah. Is there
a more accurate/descriptive address available to use?
4b. Please provide UTM coordinates for the site.
5. Please provide the billing contact information: name of contact, billing address, phone number, and email
6. The current Approval Order lists the following equipment: Roadrunner Crushing Plant, three deck wash screen, power
screen, variable speed belt feeder, two (2) 66" cone crushers, 66" finehead screen, 54" cone crusher with screen, four (4)
6'x20' three deck screens, 30"x42" jaw crusher, vibrating plate feeder and grizzly, Belly dump mixing bin, surge bins,
feeder, sand screw, sand washing screw, various conveyors, other associated equipment, Concrete aggregate batcher,
and cement silo and flyash silo.
Are there any other pieces of equipment that have not been added to the permit?
7. As mentioned over the phone, all permitted equipment has been removed from the site and the site is now operating
more like a yard for landscaping products. You would like to maintain the equipment as listed in the AO in the event
operations at the site begin again, correct?
At the moment, I believe this is all the information I need to update the current Approval Order.
Before the updated Approval Order is finalized, you will have an opportunity to review a draft version and verify that the
information in the draft is correct.
Cheers,
Katie Andersen
2/3/25, 10:49 AM State of Utah Mail - Gomex Pit DAQ 10-Year Review Permit Update
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r4235832726881714678&simpl=msg-a:r901462293329449…1/4
--

Katie Andersen
Environmental Engineer | Minor NSR Section
M: [phone]
airquality.utah.gov
Rose, Chris (Staker & Parson Companies) <[e-mail]>Thu, Jan 16, 2025 at 4:47 PM
To: Katie Andersen <[e-mail]>
Katie,

The email and phone number you have for me are correct.

The business name is correct.

The site name is correct.

The business and mailing address are correct.

A slightly more accurate address would be Gomex Rd, Spanish Fork, UT 84660

UTM coordinates are 450263.02 m E, 4436177.49 m N.

Billing contact is myself, the name, address, email and phone number carry over.

No equipment is onsite.

You’re correct- unless I hear otherwise, we will maintain the Gomex AO in the event that operations would
start back up there.

Let me know if you have any other questions,
2/3/25, 10:49 AM State of Utah Mail - Gomex Pit DAQ 10-Year Review Permit Update
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r4235832726881714678&simpl=msg-a:r901462293329449…2/4
You don't often get email from [e-mail]. Learn why this is important

Christopher Rose
Environmental Specialist
West Division

Staker Parson
A CRH COMPANY
89 West 13490 South
Draper, Utah 84020

C [phone]
E [e-mail]

From: Kae Andersen <[e-mail]>
Sent: Thursday, January 16, 2025 4:03 PM
To: Rose, Chris (Staker & Parson Companies) <[e-mail]>
Subject: [EXT] Gomex Pit DAQ 10-Year Review Permit Update

CAUTION: This email originated from outside of the organizaon. Do not click links or open aachments unless you are
expecng this email and know the contents are safe. If you believe this email may be phishing or malicious, please use the
Report Phish buon.
[Quoted text hidden]
ATTENTION: Ce courriel vient de l'exterieur de l'entreprise. Ne cliquez pas sur les liens, et n'ouvrez pas les pièces jointes, à
moins que vous ne connaissiez l'expéditeur du courriel et savez que le contenu est sécuritaire. Si vous pensez qu’il s’agit d’un
courriel d’hameçonnage ou malveillant, veuillez cliquer sur le bouton Signaler une tentave d’hameçonnage.
Katie Andersen <[e-mail]>Fri, Jan 31, 2025 at 9:11 AM
To: "Rose, Chris (Staker & Parson Companies)" <[e-mail]>
Hi Chris,
I have a follow up question for the Gomex Pit Approval Order. The current AO lists fuel consumption requirements for
equipment on site. Was the only equipment on site that used diesel fuel the mobile equipment or were there stationary
units that used diesel fuel?
Cheers,
Katie Andersen
[Quoted text hidden]
Rose, Chris (Staker & Parson Companies) <[e-mail]>Mon, Feb 3, 2025 at 9:52 AM
To: Katie Andersen <[e-mail]>
2/3/25, 10:49 AM State of Utah Mail - Gomex Pit DAQ 10-Year Review Permit Update
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r4235832726881714678&simpl=msg-a:r901462293329449…3/4
Katie,

I believe only mobile sources frequented the pit.

Thanks,
[Quoted text hidden]
2/3/25, 10:49 AM State of Utah Mail - Gomex Pit DAQ 10-Year Review Permit Update
https://mail.google.com/mail/u/0/?ik=0900585596&view=pt&search=all&permthid=thread-a:r4235832726881714678&simpl=msg-a:r901462293329449…4/4