DAQ-2024-008166

1

DAQC-504-24
Site ID: 10055 (B4)

MEMORANDUM

TO: STACK TEST FILE – KILGORE CONTRACTING, INC. – Hyrum Aggregate,
Asphalt, and Concrete Plant – Cache County

THROUGH: Rik Ombach, Minor Source Oil and Gas Compliance Section Manager

FROM: Kyle Greenberg, Environmental Scientist

DATE: May 22, 2024

SUBJECT: Source: 400 TPH Hot Mix Asphalt Plant
Location: 410 North 800 East, Hyrum, UT 84319
Contact: Lee Ware: 801-831-7402
Tester: Montrose Air Quality Services, LLC
Site ID #: 10055
Permit/AO #: DAQE-AN100550003-20 dated September 15, 2020
Subject: Review of Pretest Protocol dated May 21, 2024

On May 22, 2024, Utah Division of Air Quality (DAQ) received a protocol for testing of the 400 TPH
Hot Mix Asphalt Plant at Hyrum Aggregate, Asphalt, and Concrete Plant in Cache County, Utah. Testing
will be performed on July 9, 2024, to determine compliance with the emission limits found in conditions
II.B.1.b and II.B.4.g of Approval Order DAQE-AN100550003-20.

PROTOCOL CONDITIONS:

1. RM 1 used to determine sample velocity traverses: OK
2. RM 2 used to determine stack gas velocity and volumetric flow rate: OK
3. RM 3 used to determine dry molecular weight of the gas stream: OK
4. RM 4 used to determine moisture content: OK
5. RM 5 used to determine particulate matter emissions: OK
6. RM 9 used to determine visible emissions opacity: OK
7. RM 202 used to determine condensable particulate matter: OK

DEVIATIONS: None.

CONCLUSION: The protocol appears to be acceptable.

RECOMMENDATION: The methods proposed in the pretest protocol are sufficient to determine
particulate matter emissions and visible emissions from the 400 TPH Hot
Mix Asphalt Plant. It is recommended that the pretest protocol be
determined as acceptable.

ATTACHMENTS: Kilgore Company’s Test Notification Letter and Pretest Protocol

Source Test Plan for 2024 PM, PM10, PM2.5, and
VEOs Compliance Testing
Maxim Hot Mix Asphalt (HMA) Plant
Kilgore Companies LLC
Hyrum Aggregate, Asphalt, and Concrete
Maxim 400 TPH Hot Mix Asphalt (HMA) Plant
Hyrum, Utah 84319
Prepared For:
Kilgore Companies LLC
Hyrum Aggregate, Asphalt, and Concrete
Maxim 400 TPH HMA Plant
410 North 800 East
Hyrum, Utah 84319
Prepared By:
Montrose Air Quality Services, LLC
6823 South 3600 West
Spanish Fork, Utah 84660
For Submission To:
State of Utah Department of Environmental Quality
Division of Air Quality
195 North 1950 West
Salt Lake City, Utah 84114-4820
Document Number: GP081AS-041331-PP-854
Proposed Test Date: July 9, 2024
Submittal Date: May 21, 2024
Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah
Review and Certification
I certify that, to the best of my knowledge, the information contained in this document is
complete and accurate and conforms to the requirements of the Montrose Quality
Management System and ASTM D7036-04.
Signature: Date: May 21, 2024
Name: Cheyney Guymon Title: Field Project Manager
I have reviewed, technically and editorially, details and other appropriate written materials
contained herein. I hereby certify that to the best of my knowledge the presented material
is authentic and accurate and conforms to the requirements of the Montrose Quality
Management System and ASTM D7036-04.
Signature: Date: May 21, 2024
Name: Joby Dunmire Title: QA/QC Specialist
Facility Certification
I have reviewed this document and agree that the information contained herein is true,
accurate, and complete, to the best of my knowledge.
Signature: Date: May 21, 2024
Name: Bryan Jorgensen Title: Environmental Manager
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Table of Contents
Section Page
1.0 Introduction ........................................................................................................ 5
1.1 Summary of Test Program ............................................................................. 5
1.2 Applicable Regulations and Emission Limits ...................................................... 6
1.3 Key Personnel .............................................................................................. 7
2.0 Plant and Sampling Location Descriptions................................................................ 8
2.1 Process Description, Operation, and Control Equipment ..................................... 8
2.2 Flue Gas Sampling Location ........................................................................... 8
2.3 Operating Conditions and Process Data ........................................................... 9
2.4 Plant Safety ................................................................................................. 9
2.4.1 Safety Responsibilities .......................................................................... 9
2.4.2 Safety Program and Requirements ....................................................... 11
3.0 Sampling and Analytical Procedures ..................................................................... 11
3.1 Test Methods ............................................................................................. 11
3.1.1 EPA Method 1, Sample and Velocity Traverses for Stationary Sources ...... 11
3.1.2 EPA Method 2, Determination of Stack Gas Velocity and Volumetric Flow
Rate (Type S Pitot Tube) .................................................................... 11
3.1.3 EPA Method 3, Gas Analysis for the Determination of Dry Molecular Weight
12
3.1.4 EPA Method 4, Determination of Moisture Content in Stack Gas ............... 13
3.1.5 EPA Methods 5 and 202, Determination of Particulate Matter from
Stationary Sources and Dry Impinger Method for Determining Condensable
Particulate Emissions from Stationary Sources ...................................... 13
3.1.6 EPA Method 9, Visual Determination of the Opacity of Emissions ............. 15
4.0 Quality Assurance and Reporting .......................................................................... 16
4.1 QA Audits .................................................................................................. 16
4.2 Quality Control Procedures .......................................................................... 16
4.2.1 Equipment Inspection and Maintenance ................................................ 16
4.2.2 Audit Samples ................................................................................... 16
4.3 Data Analysis and Validation ........................................................................ 16
4.4 Sample Identification and Custody ................................................................ 17
4.5 Quality Statement ...................................................................................... 17
4.6 Reporting .................................................................................................. 17
4.6.1 Example Report Format ...................................................................... 18
4.6.2 Example Presentation of Test Results ................................................... 18
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

List of Appendices
A Supporting Information ...................................................................................... 20
A.1 Units and Abbreviations.............................................................................. 21
A.2 Accreditation Information/Certifications ........................................................ 22
A.3 AO DAQE-AN100550003-20 ........................................................................ 33
“S” Field Work Safety Plan ....................................................................................... 49
List of Tables
1-1 Summary of Test Program and Proposed Schedule .................................................. 5
1-2 Reporting Units and Emission Limits ...................................................................... 6
1-3 Test Personnel and Responsibilities ....................................................................... 7
2-1 Sampling Location ............................................................................................... 9
4-1 Example Emissions Results - Maxim 400 TPH HMA Plant, Hyrum, Utah .................... 19
List of Figures
3-1 EPA Methods 5/202 Sampling Train ..................................................................... 15
4-1 Typical Report Format ....................................................................................... 18

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

1.0 Introduction
1.1 Summary of Test Program
Kilgore Companies, LLC (Kilgore) contracted Montrose Air Quality Services, LLC (Montrose)
to perform a particulate matter (PM), particulate matter less than 10 microns in
aerodynamic diameter (PM10), particulate matter less than 2.5 microns in aerodynamic
diameter (PM2.5) and visible emissions of opacity (VEOs) compliance emissions test program
on the outlet of the Maxim 400 TPH Hot Mix Asphalt (HMA) Plant located at the Hyrum
Aggregate, Asphalt, and Concrete HMA facility located in Hyrum, Utah.
The tests are conducted to determine compliance with the emission limits listed in Approval
Order (AO) DAQE-AN100550003-20, issued by the State of Utah Department of
Environmental Quality, Division of Air Quality on September 15, 2020. A copy of the AO is
attached as Appendix A-3.
The specific objectives are to:
• Measure emissions of PM/PM10/PM2.5 at the outlet of the Maxim 400 TPH HMA
Plant, Drum Dryer, fired on natural gas, propane, fuel oil, or on-specification
used oil, or any combination thereof as fuel, controlled by a baghouse
• Determine the opacity of emissions (VEOs) at the outlet of the Maxim 400
TPH HMA Plant, Drum Dryer, fired on natural gas, propane, fuel oil, or on-
specification used oil, or any combination thereof as fuel, controlled by a
baghouse
• Conduct the test program with a focus on safety
Montrose will provide the test personnel and the necessary equipment to measure emissions
as outlined in this test plan. Facility personnel will provide the process and production data
to be included in the final report. A summary of the test program and proposed schedule is
presented in Table 1-1.
Table 1-1
Summary of Test Program and Proposed Schedule
Proposed
Test Date(s)
Unit ID/
Source Name Activity/Parameters Test Methods
No. of
Runs
Duration
(Minutes)
July 9, 2024
Maxim 400
TPH Drum Mix
HMA
Velocity/Volumetric
Flow Rate
EPA 1, 2, 3A,
4 3 ~60
O2, CO2 EPA 3A 3 ~60
Moisture EPA 4 3 ~60
PM/PM10/PM2.5 EPA 5/202 3 ~60
Opacity EPA 9 3 ~6

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

To simplify this test plan, a list of Units and Abbreviations is included in Appendix A.
Throughout this test plan, chemical nomenclature, acronyms, and reporting units are not
defined. Please refer to the list for specific details.
1.2 Applicable Regulations and Emission Limits
The results from this test program are presented in units consistent with those listed in the
applicable regulations or requirements. The reporting units and emission limits are
presented in Table 1-2.
Table 1-2
Reporting Units and Emission Limits
Unit ID/
Source Name Parameter Reporting Units Emission Limit
Emission Limit
Reference
Maxim 400
TPH Drum Mix
HMA
PM
lb/hr virgin material
gr/dscf virgin material
7.71
0.030
AN100550003-
20, §II.B.4.g.
lb/hr RAP material
gr/dscf RAP material
9.00
0.035
PM10/PM2.5
lb/hr virgin material
gr/dscf virgin material
6.17
0.024
lb/hr RAP material
gr/dscf RAP material
7.20
0.028
Opacity % 10 AN100550003-
20, §II.B.1.b.

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

1.3 Key Personnel
A list of project participants is included below:

Facility Information
Source Location: Kilgore
Hyrum Aggregate, Asphalt, and Concrete
Maxim 400 TPH HMA Plant
410 North 800 East
Hyrum, Utah 84319
Project Contact: Bryan Jorgensen
Role: Environmental Manager
Company: Kilgore
Telephone: [phone]
Email: [e-mail]

Agency Information
Regulatory
Agency:
State of Utah DEQ, Division of Air Quality
Agency Contact: Chad Gilgen, Minor Source Compliance
Telephone: [phone]
Email: [e-mail]

Testing Company Information
Testing Firm: Montrose Air Quality Services, LLC
Contact: Beckie Hawkins Cheyney Guymon
Title: District Manager Field Project Manager
Telephone: [phone]
Email: [e-mail] [e-mail]
Table 1-3 details the roles and responsibilities of the test team.
Table 1-3
Test Personnel and Responsibilities
Role Primary Assignment Additional Responsibilities
District Manager Coordinate Project Post-test follow up
Field Project Manager Operate mobile lab Facility interface, test crew coordination
Field Technician Execute stack platform
responsibilities Preparation, support PM

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

2.0 Plant and Sampling Location Descriptions
2.1 Process Description, Operation, and Control
Equipment
Asphaltic concrete paving is a mixture of well graded, high-quality aggregate and
liquid asphaltic cement which is heated and mixed in measured quantities to produce
bituminous pavement material. Aggregate constitutes 92 weight percent of the total
mixture. Aside from the amount and grade of asphalt used, mix characteristics are
determined by the relative amounts and types of aggregate used. A certain
percentage of fine aggregate (% less than 74 micrometers in physical diameter) is
required to produce good quality asphaltic concrete.

The drum mix process simplifies the conventional process by using proportioning
feed controls in place of hot aggregate storage bins, vibration screens, and the
mixer. Aggregate is introduced near the burner end of the revolving drum mixer,
and the asphalt is injected midway along the drum. A variable flow asphalt pump is
linked electronically to the aggregate belt scales to control mix specifications. The
hot mix is discharged from the revolving drum mixer into surge bins or storage bins.
Emissions from the asphalt drum mixer are vented to a baghouse before being emitted to
the atmosphere. The pressure drop across the baghouse will be maintained between 2 and
6 inches of water column. The estimated removal efficiency for the baghouse is 99+ percent
for total suspended particulate material (and PM10).
2.2 Flue Gas Sampling Location
Actual stack measurements, number of traverse points, and location of traverse points will
be evaluated in the field as part of the test program. Table 2-1 presents the anticipated
stack measurements and traverse points for the sampling locations listed.

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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Table 2-1
Sampling Location
Sampling
Location
Stack Inside
Diameter
(in.)
Distance from Nearest Disturbance
Number of Traverse
Points
Downstream EPA
“B” (in./dia.)
Upstream EPA
“A” (in./dia.)
Maxim 400
TPH Drum Mix
HMA
41.5 84.0/2.02 43.0/1.04
Isokinetic: 24 (12/port)
Flow: 24 (12/port)
Gaseous: Single point or
3-point short line
The sample location is verified in the field to conform to EPA Method 1. Acceptable cyclonic
flow conditions are confirmed prior to testing using EPA Method 1, Section 11.4.
2.3 Operating Conditions and Process Data
Emission tests are performed while the source and air pollution control devices are
operating at the conditions required by the permit.
Plant personnel are responsible for establishing the test conditions and collecting all
applicable unit-operating data. Data collected includes the following parameters:
• Throughput, tons per hour (ton/hr or tph)
• Static pressure drop across the HMA baghouse (inches of water column or in.
wc)
2.4 Plant Safety
Montrose will comply with all safety requirements at the facility. The facility Client Sponsor,
or designated point of contact, is responsible for ensuring routine compliance with plant
entry, health, and safety requirements. The Client Sponsor has the authority to impose or
waive facility restrictions. The Montrose test team leader has the authority to negotiate any
deviations from the facility restrictions with the Client Sponsor. Any deviations must be
documented.
2.4.1 Safety Responsibilities
Planning
• Montrose must complete a field review with the Client Sponsor prior to the
project date. The purpose of the review is to develop a scope of work that
identifies the conditions, equipment, methods, and physical locations that will
be utilized along with any policies or procedures that will affect our work.
• We must reach an agreement on the proper use of client emergency services
and ensure that proper response personnel are available, as needed.
• The potential for chemical exposure and actions to be taken in case of
exposure must be communicated to Montrose. This information must include
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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

expected concentrations of the chemicals and the equipment used to identify
the substances.2
• Montrose will provide a list of equipment being brought to the site, if required
by the client.
Project Day
• Montrose personnel will arrive with the appropriate training and credentials
for the activities they will be performing and the equipment that they will
operate.
• Our team will meet daily to review the Project Scope, Job Hazard Assessment,
and Work Permits. The Client Sponsor and Operations Team are invited to
participate.
• Montrose will provide equipment that can interface with the client utilities
previously identified in the planning phase and only work with equipment that
our client has made ready and prepared for connection.
• We will follow client direction regarding driving safety, safe work permitting,
staging of equipment, and other crafts or work in the area.
• As per 40 CFR Part 60 Subpart A, Section 60.8, the facility must provide the
following provisions at each sample location:
o Sampling ports, which meet EPA minimum requirements for testing. The
caps should be removed or be hand-tight.
o Safe sampling platforms.
o Safe access to the platforms and test ports, including any scaffolding or
man lifts.
o Sufficient utilities to perform all necessary testing.
• Montrose will use the client communication system, as directed, in case of
plant or project emergency.
• Any adverse conditions, unplanned shutdowns or other deviations to the
agreed scope and project plan must be reviewed with the Client Sponsor prior
to continuing work. This will include any safe work permit and hazard
assessment updates.
Completion
• Montrose personnel will report any process concerns, incidents or near misses
to the Client Sponsor prior to leaving the site.
• Montrose will clean up our work area to the same condition as it was prior to
our arrival.
• We will ensure that all utilities, connection points or equipment have been
returned to the pre-project condition or as stated in the safe work permit. In
addition, we will walk out the job completion with Operations and the Client
Sponsor if required by the facility.
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400 TPH HMA Plant, Hyrum, Utah

2.4.2 Safety Program and Requirements
Montrose has a comprehensive health and safety program that satisfies State and Federal
OSHA requirements. The program includes an Illness and Injury Prevention Program, site-
specific safety meetings, and training in safety awareness and procedures. The basic
elements include:
• All regulatory required policies/procedures and training for OSHA, EPA and
FMCSA
• Medical monitoring, as necessary
• Use of Personal Protective Equipment (PPE) and chemical detection equipment
• Hazard communication
• Pre-test and daily toolbox meetings
• Continued evaluation of work and potential hazards
• Near-miss and incident reporting procedures as required by Montrose and the
Client
Montrose will provide standard PPE to employees. The PPE will include but is not limited to;
hard hats, safety shoes, glasses with side shields or goggles, hearing protection, hand
protections, and fall protection. In addition, our trailers are equipped with four gas detectors
to ensure that workspace has no unexpected equipment leaks or other ambient hazards.
The detailed Site Safety Plan for this project is attached to this test plan in Appendix “S”.
3.0 Sampling and Analytical Procedures
3.1 Test Methods
The test methods for this test program have been presented in Table 1-1. Additional
information regarding specific applications or modifications to standard procedures is
presented below.
3.1.1 EPA Method 1, Sample and Velocity Traverses for Stationary
Sources
EPA Method 1 is used to assure that representative measurements of volumetric flow rate
are obtained by dividing the cross-section of the stack or duct into equal areas, and then
locating a traverse point within each of the equal areas. Acceptable sample locations must
be located at least two stack or duct equivalent diameters downstream from a flow
disturbance and one-half equivalent diameter upstream from a flow disturbance.

3.1.2 EPA Method 2, Determination of Stack Gas Velocity and
Volumetric Flow Rate (Type S Pitot Tube)
EPA Method 2 is used to measure the gas velocity using an S-type pitot tube connected to a
pressure measurement device, and to measure the gas temperature using a calibrated
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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

thermocouple connected to a thermocouple indicator. Typically, Type S (Stausscheibe) pitot
tubes conforming to the geometric specifications in the test method are used, along with an
inclined manometer. The measurements are made at traverse points specified by EPA
Method 1. The molecular weight of the gas stream is determined from independent
measurements of O2, CO2, and moisture. The stack gas volumetric flow rate is calculated
using the measured average velocity head, the area of the duct at the measurement plane,
the measured average temperature, the measured duct static pressure, the molecular
weight of the gas stream, and the measured moisture.

Pertinent information regarding the performance of the method is presented below:

• S-type pitot tube coefficient is 0.84.
• Shortridge multimeter may be used to measure velocity.

The typical sampling system is detailed as part of the EPA Method 5/202 sampling train in
Figure 3-1.

3.1.3 EPA Method 3, Gas Analysis for the Determination of Dry
Molecular Weight
EPA Method 3 is used to calculate the dry molecular weight of the stack gas by measuring
the percent O2 and CO2 in the gas stream. A gas sample is extracted from the stack by one
of the following methods: (1) single-point, grab sampling; (2) single-point, integrated
sampling; or (3) multi-point, integrated sampling. The gas sample is analyzed for percent
CO2 and percent O2 using either an Orsat or a Fyrite analyzer.
Pertinent information regarding the performance of the method is presented below:
• Method Options:
o A Fyrite-type combustion gas analyzer is used to measure the analyte
concentrations
o An Orsat analyzer is used to measure the analyte concentrations
o Single-point grab sampling is performed
o Single-point integrated sampling is performed
o Less than 28 L (1.0 ft3) is collected
o Multi-point integrated sampling is performed
• Target and/or Minimum Required Sample Duration: 60 minutes
• Target and/or Minimum Recommended Sample Volume: 1.0 ft3
• Target Analytes: O2 and CO2
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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

3.1.4 EPA Method 4, Determination of Moisture Content in Stack
Gas
EPA Method 4 is a manual method used to measure the moisture content of gas streams.
Gas is sampled at a constant sampling rate through a probe and impinger train. Moisture is
removed using a series of pre-weighed impingers containing methodology-specific liquids
and silica gel immersed in an ice water bath. The impingers are weighed after each run to
determine the percent moisture.
Pertinent information regarding the performance of the method is presented below:
• Condensed water is measured gravimetrically
• Moisture sampling is performed as part of the EPA Method 5/202 sample trains
• Since it is theoretically impossible for measured moisture to be higher than
psychrometric moisture, the psychrometric moisture is also calculated, and the lower
moisture value is used in the calculations
• Target Sample Duration: 60 minutes
• Minimum Required Sample Volume: 21 scf
As the EPA Method 5/202 sampling train will be used to collect moisture, sampling will not
be constant; rather, sampling will be isokinetic as per the criteria set forth in EPA Methods
5/202.
The typical sampling system is detailed as part of the EPA Method 5/202 sampling train in
Figure 3-1.
3.1.5 EPA Methods 5 and 202, Determination of Particulate Matter
from Stationary Sources and Dry Impinger Method for
Determining Condensable Particulate Emissions from
Stationary Sources
EPA Methods 5 and 202 are manual, isokinetic methods used to measure FPM and CPM
emissions. The methods are performed in conjunction with EPA Methods 1, 2, 3, and 4. The
stack gas is sampled through a nozzle, probe, heated filter, unheated CPM filter, condenser,
and impinger train. FPM is collected from the probe and heater filter. CPM is collected from
the unheated CPM filter and the impinger train. The samples are analyzed gravimetrically.
The sum of FPM and CPM represents TPM. The FPM, CPM, and TPM results are reported in
emission concentration and emission rate units. Pertinent information regarding the
performance of the method is presented below:
• Glass sample nozzles and probe liners are used
• Condensed water is measured gravimetrically
• As an alternative to baking glassware, a field train proof blank sample may be
recovered
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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

• If no water is collected before the CPM filter, the post-test nitrogen purge will be
omitted
• The post-test nitrogen purge may be performed using the sampling system meter
box and vacuum pump
• The post-test nitrogen purge may be performed by passing nitrogen through the
train under pressure
• Method 5/202 total PM results will be used to demonstrate compliance with the
individual PM, PM10 and PM2.5 emission limits
• Target Sample Duration: 60 minutes
• Minimum Required Sample Volume: 31.8 dscf (0.90 dscm)
• Method Options:
o EPA Approved Alternative Method 009 (ALT-009) is used as an alternative to
a two-point post-test meter box calibration. This procedure uses a calculation
to check the meter box calibration factor rather than requiring a physical
post-test meter box calibration using a standard dry gas meter. The average
calculated meter box percent (%) error must result in a percent error within
±5% of Y. If not, a full calibration is performed, and the results are presented
using the Y factor that yields the highest emissions.
The typical sampling system is detailed in Figure 3-1.
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2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Figure 3-1
EPA Methods 5/202 Sampling Train

3.1.6 EPA Method 9, Visual Determination of the Opacity of
Emissions
EPA Method 9 is used to observe the visual opacity of emissions (opacity). The observer
stands at a distance sufficient to provide a clear view of the emissions with the sun oriented
in the 140° sector to their back. The line of vision is perpendicular to the plume direction
and does not include more than one plume diameter. Observations are recorded at 15-
second intervals and are made to the nearest 5% opacity. The qualified observer is certified
according to the requirements of EPA Method 9, section 3.1.

• Observations are attempted to be made during each concurrent particulate run,
unless weather conditions are unfavorable.
• Total Observation Period Duration: 6 minutes (40 CFR Part 60, Subpart I)
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

4.0 Quality Assurance and Reporting
4.1 QA Audits
Montrose has instituted a rigorous QA/QC program for its air quality testing. Quality
assurance audits are performed as part of the test program to ensure that the results are
calculated using the highest quality data available. This program ensures that the emissions
data we report are as accurate as possible. The procedures included in the cited reference
methods are followed during preparation, sampling, calibration, and analysis. Montrose is
responsible for preparation, calibration, and cleaning of the sampling apparatus. Montrose
will also perform the sampling, sample recovery, storage, and shipping. Approved contract
laboratories may perform some of the preparation and sample analyses, as needed.
4.2 Quality Control Procedures
Montrose calibrates and maintains equipment as required by the methods performed and
applicable regulatory guidance. Montrose follows internal procedures to prevent the use of
malfunctioning or inoperable equipment in test programs. All equipment is operated by
trained personnel. Any incidence of nonconforming work encountered during testing is
reported and addressed through the corrective action system.
4.2.1 Equipment Inspection and Maintenance
Each piece of field equipment that requires calibration is assigned a unique identification
number to allow tracking of its calibration history. All field equipment is visually inspected
prior to testing and includes pre-test calibration checks as required by the test method or
regulatory agency.
4.2.2 Audit Samples
When required by the test method and available, Montrose obtains EPA TNI SSAS audit
samples from an accredited provider for analysis along with the samples. Currently, the
SSAS program has been suspended pending the availability of a second accredited audit
sample provider. If the program is reinstated, the audit samples will be ordered. If required
as part of the test program, the audit samples are stored, shipped, and analyzed along with
the emissions samples collected during the test program. The audit sample results are
reported along with the emissions sample results.
4.3 Data Analysis and Validation
Montrose converts the raw field, laboratory, and process data to reporting units consistent
with the permit or subpart. Calculations are made using proprietary computer spreadsheets
or data acquisition systems. One run of each test method is also verified using a separate
example calculation. The example calculations are checked against the spreadsheet results
and are included in the final report. The “Standard Conditions” for this project are 29.92
inches of mercury and 68 °F.
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

4.4 Sample Identification and Custody
The on-site Field Project Manager will assume or assign the role of sample and data
custodian until relinquishing custody. The sample custodian will follow proper custody
procedures before departing from the test site including:
• Assign the unique sample identification number to each sample.
• Attach sample labels and integrity seals to all samples.
• Complete COC form(s), ensuring that the sample identification numbers on
the samples match the sample identification numbers on the COC.
• Pack and store samples in accordance with the test method requirements in
appropriate transport containers for protection from breakage, contamination,
or loss.
• Keep samples in a secure locked area if not in the direct presence of Montrose
staff.
The sample custodian will follow proper custody procedures upon arriving at the Montrose
office including:
• Remove samples and COC documents from vehicles and check into
designated secure sample holding areas.
• Store samples requiring additional measures such as refrigeration or dry ice
appropriately.
4.5 Quality Statement
Montrose is qualified to conduct this test program and has established a quality
management system that led to accreditation with ASTM Standard D7036-04 (Standard
Practice for Competence of Air Emission Testing Bodies). Montrose participates in annual
functional assessments for conformance with D7036-04 which are conducted by the
American Association for Laboratory Accreditation (A2LA). All testing performed by Montrose
is supervised on site by at least one Qualified Individual (QI) as defined in D7036-04
Section 8.3.2. Data quality objectives for estimating measurement uncertainty within the
documented limits in the test methods are met by using approved test protocols for each
project as defined in D7036-04 Sections 7.2.1 and 12.10. Additional quality assurance
information is included in the appendices. The content of this test plan is modeled after the
EPA Emission Measurement Center Guideline Document (GD-042).
4.6 Reporting
Montrose will prepare a final report to present the test data, calculations/equations,
descriptions, and results. Prior to release by Montrose, each report is reviewed and certified
by the project manager and their supervisor, or a peer. Source test reports will be
submitted to the facility or appropriate regulatory agency (upon customer approval) within
30 days of the completion of the field work. The report will include a series of appendices to
17 of 63 GP081AS-041331-PP-854

Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

present copies of the intermediate calculations and example calculations, raw field data,
laboratory analysis data, process data, and equipment calibration data.
4.6.1 Example Report Format
The report is divided into various sections describing the different aspects of the source
testing program. Figure 4-1 presents a typical Table of Contents for the final report.
Figure 4-1
Typical Report Format
Cover Page
Certification of Report
Table of Contents
Section
1.0 Introduction
2.0 Plant and Sampling Location Descriptions
3.0 Sampling and Analytical Procedures
4.0 Test Discussion and Results
5.0 Internal QA/QC Activities
Appendices
A Field Data and Calculations
B Facility Process Data
C Laboratory Analysis Data
D Quality Assurance/Quality Control
E Regulatory Information

4.6.2 Example Presentation of Test Results
Table 4-1 presents the typical tabular format that is used to summarize the results in the
final source test report. Separate tables will outline the results for each target analyte and
compare them to their respective emissions limits.

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Table 4-1
Example Emissions Results -
Maxim 400 TPH HMA Plant, Hyrum, Utah
Parameter/Units Run 1 Run 2 Run 3 Average
Date XX XX XX XX
Time XX XX XX XX
Process Data
Throughput, ton/hr XX XX XX XX
Baghouse Static Pressure, in. wc XX XX XX XX
Sampling & Flue Gas Parameters
O2, % volume dry XX XX XX XX
CO2, % volume dry XX XX XX XX
flue gas temperature, °F XX XX XX XX
moisture content, % volume XX XX XX XX
volumetric flow rate, dscfm XX XX XX XX
PM/PM10/PM2.5 Results (Virgin or RAP)
Concentration, gr/dscf XX XX XX XX
Emission rate, lb/hr XX XX XX XX
Opacity of Emissions Results
Opacity, % XX XX XX XX

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Appendix A
Supporting Information

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Appendix A.1
Units and Abbreviations

21 of 63 GP081AS-041331-PP-854
@ X% O2 corrected to X% oxygen (corrected for dilution air)
|CC|absolute value of the confidence coefficient
|d|absolute value of the mean differences
ºC degrees Celsius
ºF degrees Fahrenheit
ºR degrees Rankine
" H2O inches of water column
13.6 specific gravity of mercury
ΔH pressure drop across orifice meter, inches H2O
ΔP velocity head of stack gas, inches H2O
θ total sampling time, minutes
µg microgram
ρa density of acetone, mg/ml
ρw density of water, 0.9982 g/ml or 0.002201 lb/ml
acfm actual cubic feet of gas per minute at stack conditions
An cross-sectional area of nozzle, ft2
As cross-sectional area of stack, square feet (ft2)
Btu British thermal unit
Bws proportion by volume of water vapor in gas stream
Ca particulate matter concentration in stack gas, gr/acf
CAvg average unadjusted gas concentration, ppmv
CDir measured concentration of calibration gas, ppmv
cf or ft3 cubic feet
cfm cubic feet per minute
CGas average gas concentration adjusted for bias, ppmv
CM average of initial and final system bias check responses from upscale calibration gas, ppmv
cm or m3 cubic meters
CMA actual concentration of the upscale calibration gas, ppmv
CO average of initial and final system bias check responses from low-level calibration gas, ppmv
Cp pitot tube coefficient
Cs particulate matter concentration in stack gas, gr/dscf
CS calibration span, % or ppmv
CS measured concentration of calibration gas, ppmv
CV manufactured certified concentration of calibration gas, ppmv
D drift assessment, % of span
dcf dry cubic feet
dcm dry cubic meters
Dn diameter of nozzle, inches
Ds diameter of stack, inches
dscf dry standard cubic feet
dscfm dry standard cubic feet per minute
dscm dry standard cubic meters
Fd F-factor, dscf/MMBtu of heat input
fpm feet per minute
fps feet per second
ft feet
ft2 square feet
g gram
gal gallons
gr grains (7000 grains per pound)
UNITS OF MEASUREMENT
22 of 63 GP081AS-041331-PP-854
UNITS OF MEASUREMENT
gr/dscf grains per dry standard cubic feet
hr hour
I percent of isokinetic sampling
in inch
k kilo or thousand (metric units, multiply by 103)
K kelvin (temperature)
K3 conversion factor 0.0154 gr/mg
K4 conversion factor 0.002668 ((in. Hg)(ft3))/((ml)(°R))
kg kilogram
Kp pitot tube constant (85.49 ft/sec)
kwscfh thousand wet standard cubic feet per hour
l liters
lb/hr pounds per hour
lb/MMBtu pounds per million Btu
lpm liters per minute
m meter or milli
M thousand (English units) or mega (million, metric units)
m3 cubic meters
ma mass of residue of acetone after evaporation, mg
Md molecular weight of stack gas; dry basis, lb/lb-mole
meq milliequivalent
mg milligram
Mg megagram (106 grams)
min minute
ml or mL milliliter
mm millimeter
MM million (English units)
MMBtu/hr million Btu per hour
mn total amount of particulate matter collected, mg
mol mole
mol. wt. or MW molecular weight
Ms molecular weight of stack gas; wet basis, lb/lb-mole
MW molecular weight or megawatt
n number of data points
ng nanogram
nm nanometer
Nm3 normal cubic meter
Pbar barometric pressure, inches Hg
pg picogram
Pg stack static pressure, inches H2O
Pm barometric pressure of dry gas meter, inches Hg
ppb parts per billion
ppbv parts per billion, by volume
ppbvd parts per billion by volume, dry basis
ppm parts per million
ppmv parts per million, by volume
ppmvd parts per million by volume, dry basis
ppmvw parts per million by volume, wet basis
Ps absolute stack gas pressure, inches Hg
psi pounds per square inch
psia pounds per square inch absolute
psig pounds per square inch gauge
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UNITS OF MEASUREMENT
Pstd standard absolute pressure, 29.92 inches Hg
Qa volumetric flow rate, actual conditions, acfm
Qs volumetric flow rate, standard conditions, scfm
Qstd volumetric flow rate, dry standard conditions, dscfm
R ideal gas constant 21.85 ((in. Hg) (ft3))/((°R) (lbmole))
SBfinal post-run system bias check, % of span
SBi pre-run system bias check, % of span
scf standard cubic feet
scfh standard cubic feet per hour
scfm standard cubic feet per minute
scm standard cubic meters
scmh standard cubic meters per hour
sec second
sf, sq. ft., or ft2 square feet
std standard
t metric ton (1000 kg)
T 0.975 t-value
Ta absolute average ambient temperature, ºR (+459.67 for English)
Tm absolute average dry gas meter temperature, ºR (+459.67 for English)
ton or t ton = 2000 pounds
tph or tons/hr tons per hour
tpy or tons/yr tons per year
Ts absolute average stack gas meter temperature, ºR (+459.67 for English)
Tstd absolute temperature at standard conditions
V volt
Va volume of acetone blank, ml
Vaw volume of acetone used in wash, ml
Vlc total volume H2O collected in impingers and silica gel, grams
Vm volume of gas sampled through dry gas meter, ft3
Vm(std)volume of gas measured by the dry gas meter, corrected to standard conditions, dscf
Vma stack gas volume sampled, acf
Vn volume collected at stack conditions through nozzle, acf
Vs average stack gas velocity, feet per second
Vwc(std)volume of water vapor condensed, corrected to standard conditions, scf
Vwi(std)volume of water vapor in gas sampled from impingers, scf
Vwsg(std)volume of water vapor in gas sampled from silica gel, scf
W watt
Wa weight of residue in acetone wash, mg
Wimp total weight of impingers, grams
Wsg total weight of silica gel, grams
Y dry gas meter calibration factor, dimensionless
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AAS atomic absorption spectroscopy
ACDP air contaminant discharge permit
ACE analyzer calibration error, percent of span
AD absolute difference
ADL above detection limit
AETB Air Emissions Testing Body
AS applicable standard (emission limit)
ASTM American Society For Testing And Materials
BACT best achievable control technology
BDL below detection limit
BHP brake horsepower
BIF boiler and industrial furnace
BLS black liquor solids
CC confidence coefficient
CD calibration drift
CE calibration error
CEM continuous emissions monitor
CEMS continuous emissions monitoring system
CERMS continuous emissions rate monitoring system
CET calibration error test
CFR Code of Federal Regulations
CGA cylinder gas audit
CHNOS elemental analysis for determination of C, H, N, O, and S content in fuels
CNCG concentrated non-condensable gas
CO catalytic oxidizer
COC chain of custody
COMS continuous opacity monitoring system
CPM condensable particulate matter
CPMS continuous parameter monitoring system
CT combustion turbine
CTM conditional test method
CTO catalytic thermal oxidizer
CVAAS cold vapor atomic absorption spectroscopy
De equivalent diameter
DE destruction efficiency
Dioxins polychlorinated dibenzo-p-dioxins (PCDDs)
DLL detection level limited
DNCG dilute non-condensable gas
ECD electron capture detector
EIT Engineer In Training
ELCD electrolytic conductivity detector (hall detector)
EMPC estimated maximum possible concentration
EPA US Environmental Protection Agency
EPRI Electric Power Research Institute
ES emission standard (applicable limit)
ESP electrostatic precipitator
EU emission unit
FCCU fluid catalytic cracking unit
FGD flue gas desulfurization
FI flame ionization
FIA flame ionization analyzer
FID flame ionization detector
FPD flame photometric detector
FPM filterable particulate matter
ABBREVIATIONS
25 of 63 GP081AS-041331-PP-854
ABBREVIATIONS
FTIR Fourier-transform infrared spectroscopy
FTPB field train proof blank
FTRB field train recovery blank
Furans polychlorinated dibenzofurans (PCDFs)
GC gas chromatography
GC/MS gas chromatography/mass spectroscopy
GFAAS graphite furnace atomic absorption spectroscopy
GFC gas filter correlation
GHG greenhouse gas
HAP hazardous air pollutant
HC hydrocarbons
HHV higher heating value
HPLC high performance liquid chromatography
HRGC/HRMS high-resolution gas chromatography/high-resolution mass spectroscopy
HRSG heat recovery steam generator
IC ion chromatography
ICAP inductively-coupled argon plasma emission spectroscopy
ICPCR ion chromatography with a post-column reactor
ICP-MS inductively coupled plasma-mass spectroscopy
IR infrared radiation
ISO International Standards Organization
kW kilowatts
LFG landfill gas
LHV lower heating value
LPG liquified petroleum gas
MACT maximum achievable control technology
MDI methylene diphenyl diisocyanate
MDL method detection limit
MNOC maximum normal operating conditions
MRL method reporting limit
MS mass spectrometry
NA not applicable or not available
NCASI National Council For Air And Steam Improvement
NCG non-condensable gases
ND not detected
NDIR non-dispersive infrared
NESHAP National Emissions Standards For Hazardous Air Pollutants
NG natural gas
NIOSH National Institute For Occupational Safety And Health
NIST National Institute Of Standards And Technology
NMC non-methane cutter
NMOC non-methane organic compounds
NMVOC non-methane volatile organic compounds
NPD nitrogen phosphorus detector
NSPS New Source Performance Standards
OSHA Occupational Safety And Health Administration
PAH polycyclic aromatic hydrocarbons
PCB polychlorinated biphenyl compounds
PCWP plywood and composite wood products
PE Professional Engineer
PFAS per- and polyfluoroalkyl substances (PFAS)
PI photoionization
PID photoionization detector
PM particulate matter
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ABBREVIATIONS
PM10 particulate matter less than 10 microns in aerodynamic diameter
PM2.5 particulate matter less than 2.5 microns in aerodynamic diameter
POM polycyclic organic matter
PS performance specification
PSD particle size distribution
PSEL plant site emission limits
PST performance specification test
PTE permanent total enclosure
PTM performance test method
QA/QC quality assurance and quality control
QI Qualified Individual
QSTI Qualified Source Testing Individual
RA relative accuracy
RAA relative accuracy audit
RACT reasonably available control technology
RATA relative accuracy test audit
RCTO rotary concentrator thermal oxidizer
RICE stationary reciprocating internal combustion engine
RM reference method
RTO regenerative thermal oxidizer
SAM sulfuric acid mist
SCD sulfur chemiluminescent detector
SCR selective catalytic reduction system
SD standard deviation
Semi-VOST semi-volatile organic compounds sample train
SRM standard reference material
TAP toxic air pollutant
TBD to be determined
TCA thermal conductivity analyzer
TCD thermal conductivity detector
TGNENMOC total gaseous non-ethane non-methane organic compounds
TGNMOC total gaseous non-methane organic compounds
TGOC total gaseous organic compounds
THC total hydrocarbons
TIC tentatively identified compound
TO thermal oxidizer
TO toxic organic (as in EPA Method TO-15)
TPM total particulate matter
TSP total suspended particulate matter
TTE temporary total enclosure
ULSD ultra-low sulfur diesel
UV ultraviolet radiation range
VE visible emissions
VOC volatile organic compounds
VOST volatile organic sample train
WC water column
WWTP waste water treatment plant
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Ag silver Se selenium
As arsenic SO2 sulfur dioxide
Ba barium SO3 sulfur trioxide
Be beryllium SOx sulfur oxides
C carbon TCDD tetrachlorodibenzodioxin
Cd cadmium TCDF tetrachlorodibenzofuran
CdS cadmium sulfide TGOC total gaseous organic concentration
CH2O formaldehyde THC total hydrocarbons
CH3CHO acetaldehyde Tl thallium
CH3OH methanol TRS total reduced sulfur compounds
CH4 methane Zn zinc
C2H4O ethylene oxide
C2H6 ethane
C3H4O acrolein
C3H6O propionaldehyde
C3H8 propane
C6H5OH phenol
Cl2 chlorine
ClO2 chlorine dioxide
CO carbon monoxide
Co cobalt
CO2 carbon dioxide
Cr chromium
Cu copper
EtO ethylene oxide
EtOH ethyl alcohol (ethanol)
H2 hydrogen
H2O water
H2O2 hydrogen peroxide
H2S hydrogen sulfide
H2SO4 sulfuric acid
HCl hydrogen chloride
Hg mercury
IPA isopropyl alcohol
MDI methylene diphenyl diisocyanate
MeCl2 methylene chloride
MEK methyl ethyl ketone
MeOH methanol
Mn manganese
N2 nitrogen
NH3 ammonia
Ni nickel
NO nitric oxide
NO2 nitrogen dioxide
NOx nitrogen oxides
O2 oxygen
P phosphorus
Pb lead
PCDD polychlorinated dibenzo-p-dioxins
PCDF polychlorinated dibenzofurans
Sb antimony
CHEMICAL NOMENCLATURE
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Appendix A.2
Accreditation Information/Certifications

29 of 63 GP081AS-041331-PP-854
Accredited Air Emission Testing Body
A2LA has accredited
MONTROSE AIR QUALITY SERVICES
In recognition of the successful completion of the joint A2LA and Stack Testing Accreditation Council (STAC)
evaluation process, this laboratory is accredited to perform testing activities in compliance with
ASTM D7036:2004 - Standard Practice for Competence of Air Emission Testing Bodies.
Presented this 27th day of February 2024.
_______________________
Vice President, Accreditation Services
For the Accreditation Council
Certificate Number 3925.01
Valid to February 28, 2026
This accreditation program is not included under the A2LA ILAC Mutual Recognition Arrangement.
American Association for Laboratory Accreditation
30 of 63 GP081AS-041331-PP-854
CERTIFICATE OF COMPLETION
Cheyney Guymon
This document certifies that this individual has passed a comprehensive examination and is now a
Qualified Individual (QI) as defined in Section 8.3 of ASTM D7036-04 for the following method(s):
Source Evaluation Society Group 1:EPA Manual Gas Volume and Flow Measurements and Isokinetic
Particulate Sampling Methods
Certificate Number:081-2023-2
DATE OF ISSUE:05/13/2023
DATE OF EXPIRATION:05/12/2028
31 of 63 GP081AS-041331-PP-854
CERTIFICATE OF COMPLETION
Cheyney Guymon
This document certifies that this individual has passed a comprehensive examination and is now a
Qualified Individual (QI) as defined in Section 8.3 of ASTM D7036-04 for the following method(s):
Source Evaluation Society Group 3:EPA Gaseous Pollutants Instrumental Sampling Methods
Certificate Number:081-2023-1
DATE OF ISSUE:05/03/2023
DATE OF EXPIRATION:05/02/2028
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Appendix A.3
AO DAQE-AN100550003-20

33 of 63 GP081AS-041331-PP-854

DAQE-AN100550003-20

{{$d1 }}

Lee Ware
Kilgore Contracting, LLC
7057 West 2100 South
West Valley City, UT 84128

Dear Mr. Ware:

Re: Approval Order:
Modification to AO DAQE-AN100550001-19 to Increase Capacity of Diesel Fuel Storage Tanks
Project Number: N100550003

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on March 24,
2020. Kilgore Contracting, LLC must comply with the requirements of this AO, all applicable state
requirements (R307), and Federal Standards.

The project engineer for this action is Mr. Enqiang He, 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. No public comments were received on
this action.

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:EQ:sb

cc: Bear River 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

GARY R. HERBERT
Governor

SPENCER J. COX
Lieutenant Governor

Department of
Environmental Quality

L. Scott Baird
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

3"-N"*"L ÚÞĄ ÛÙÛÙ
34 of 63 GP081AS-041331-PP-854
Kyle Greenberg (May 23, 2024 12:54 MDT)
May 23, 2024

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-AN100550003-20
Modification to AO DAQE-AN100550001-19 to Increase Capacity of
Diesel Fuel Storage Tanks

Prepared By
Mr. Enqiang He, Engineer
[phone]
[e-mail]

Issued to
Kilgore Contracting, Inc. - Hyrum Aggregate, Asphalt and Concrete Plant

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

September 15, 2020
35 of 63 GP081AS-041331-PP-854
Kyle Greenberg (May 23, 2024 12:54 MDT)
May 23, 2024
TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 5
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 7
PERMIT HISTORY ................................................................................................................... 13
ACRONYMS ............................................................................................................................... 14

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DAQE-AN100550003-20
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Kilgore Contracting, LLC Kilgore Contracting, Inc. - Hyrum
Aggregate, Asphalt and Concrete Plant

Mailing Address Physical Address
7057 West 2100 South 410 North 800 East
West Valley City, UT 84128 Hyrum, UT 84319

Source Contact UTM Coordinates
Name Lee Ware 431,158 m Easting
Phone [phone] Ext 1412 4,610,075 m Northing
Email [e-mail] Datum NAD83
UTM Zone 12

SIC code 1442 (Construction Sand & Gravel)

SOURCE INFORMATION
General Description
Kilgore Contracting, LLC (Kilgore) operates an asphalt, concrete, and aggregate processing plant in
Hyrum, Cache County. Aggregate will be crushed, screened, and stored on location before being trucked
off site or to the asphalt or concrete plants. The asphalt plant will mix aggregate, asphalt oil, lime, and fly
ash to produce asphalt. The concrete plant will mix cement, supplement, sand, water, and gravel to create
concrete. The facility will produce up to 1,290,229 tons of aggregate; 380,000 tons of asphalt; and
168,986 cubic yards of concrete per year.

NSR Classification
Minor Modification at Minor Source

Source Classification
Located in, Logan UT-ID PM2.5 NAA,
Cache County
Airs Source Size: SM

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), I: Standards of Performance for Hot Mix Asphalt Facilities
NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants
37 of 63 GP081AS-041331-PP-854
DAQE-AN100550003-20
Page 4

Project Description
Kilgore has requested a modification to replace the existing storage tanks with three (3) diesel fuel storage
tanks rated at 12,000, 14,000, and 21,000 gallons. Total diesel fuel storage capacity will increase from
10,000 to 47,000 gallons. The diesel fuel is used in the onsite mobile equipment.

SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 0 59817.00
Carbon Monoxide 0 26.35
Nitrogen Oxides 0 10.66
Particulate Matter - PM10 0 28.63
Particulate Matter - PM2.5 0 13.18
Sulfur Dioxide 0 11.02
Volatile Organic Compounds 0.01 9.37

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 0 500
Formaldehyde (CAS #50000) 0 1220
Generic HAPs (CAS #GHAPS) 0 740
Hexane (CAS #110543) 0 360
Naphthalene (CAS #91203) 0 260
Toluene (CAS #108883) 0 1120
Change (TPY) Total (TPY)
Total HAPs 0 2.10

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DAQE-AN100550003-20
Page 5

SECTION I: GENERAL PROVISIONS

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

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

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

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

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

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

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

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Hyrum Aggregate, Asphalt, & Concrete Plant

II.A.2 Aggregate Plant
Crushing, screening, hauling, conveying, and storing

II.A.3 One (1) Jaw Crusher
Capacity: 400 TPH
NSPS Applicability: Subpart OOO

II.A.4 One (1) Cone Crusher
Capacity: 400 TPH
NSPS Applicability: Subpart OOO

II.A.5 One (1) Vertical Shaft Impactor Crusher
Capacity: 400 TPH
NSPS Applicability: Subpart OOO

39 of 63 GP081AS-041331-PP-854
DAQE-AN100550003-20
Page 6

II.A.6 Four (4) Triple Deck Screen
Size: 8' x 20'
Capacity: 400 TPH Each
NSPS Applicability: Subpart OOO

II.A.7 One (1) Elevated Screen
Capacity: 400 TPH Each
NSPS Applicability: Subpart OOO

II.A.8 Aggregate Conveyors
NSPS Applicability: Subpart OOO

II.A.9 Miscellaneous Equipment
feeders, stackers, wash screws, wash screens, etc.

II.A.10 Water Heater
Burner Rating: Less than 5 MMBtu/hr
Fuel: Natural Gas
Listed for information purposes only

II.A.11 Asphalt Plant
Production of Hot Mix Asphalt

II.A.12 One (1) Asphalt Mix Drum
Capacity: 400 TPH
Control: Baghouse
NSPS Applicability: Subpart I

II.A.13 Two (2) Scalping Screen
Size: 6' x 20'
Capacity: 400 TPH
NSPS Applicability: Subpart OOO

II.A.14 One (1) Hot Oil Heater
Rating: < 0.25 MMBtu/hr
Control: Low NOx Burner

II.A.15 One (1) Waste Oil Storage Tank
Maximum Capacity: 15,000 gallons

II.A.16 Two (2) Asphalt Oil Storage Tanks
Maximum Capacity: 30,000 gallons Each
NSPS Applicability: Subpart I

II.A.17 One (1) Lime Silo
Maximum Capacity: 40 Tons
Control: Bin Vent
NSPS Applicability: Subpart I

II.A.18 Three (3) Asphalt Storage Silos
Maximum Capacity: 300 Tons Each
NSPS Applicability: Subpart I

II.A.19 Three (3) Diesel Storage Tanks
Maximum Capacity: 47,000 Gallons Total

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II.A.20 One (1) Concrete Batch Plant
Capacity: 220 cubic yards/hour
Control: Baghouse

II.A.21 One (1) Cement Storage Silo
Capacity: 4,000 cf
Control: Bin Vents

II.A.22 One (1) Cement Storage Silo
Capacity: 3,125 cf
Control: Bin Vents

II.A.23 One (1) Flyash Storage Silo
Capacity: 2,400 cf
Control: Bin Vent

SECTION II: SPECIAL PROVISIONS

II.B REQUIREMENTS AND LIMITATIONS

II.B.1 Site Wide Requirements
II.B.1.a The owner/operator shall only conduct aggregate operations between 6:00 AM and 10:00 PM
each day. [R307-401-8]

II.B.1.a.1 Records of aggregate operations shall be kept for all periods when the plant is in operation.
Supervisor monitoring and maintaining of an operations log shall determine hours of operation.
[R307-401-8]

II.B.1.b The owner/operator shall not allow visible emissions from any baghouse, bin vent, dust collector
or fabric filter to exceed 10% opacity. [R307-401-8]

II.B.1.c Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions from
any source on site to exceed 20% opacity. [R307-312, R307-401-8]

II.B.1.c.1 Unless otherwise specified in this AO, opacity observations of visible emissions from stationary
sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-312]

II.B.2 Aggregate Pit Requirements
II.B.2.a The owner/operator shall not produce more than 1,290,229 tons of processed aggregate material
per rolling 12-month period. [R307-401-8]

II.B.2.a.1 To determine compliance with a rolling 12-month total the owner/operator shall calculate a new
12-month total by the 20th day of each month using data from the previous 12 months. Records
of production shall be kept for all periods when the plant is in operation. Production shall be
determined by scale house records or vendor receipts. The records of production shall be kept on
a daily basis. Production shall be determined by supervisor monitoring and maintaining of an
operations log. [R307-401-8]

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II.B.2.b Visible emissions from the following emission points shall not exceed the following values:

A. Crushers - 12% opacity

B. Screens - 7% opacity

C. All Conveyor Transfer Points - 7% opacity.

[R307-312, R307-401-8]

II.B.2.c The owner/operator shall install water sprays on all crushers, all screens, all conveyor transfer
points, and all conveyor drop points to control emissions. Sprays shall operate as required to
ensure the opacity limits in this AO are not exceeded. [R307-401-8]

II.B.2.d The owner/operator shall perform monthly periodic inspections to check that water is flowing to
discharge spray nozzles associated with each crusher, screen, and conveyor. If the
owner/operator finds that water is not flowing properly during an inspection of the water spray
nozzles, the owner/operator shall initiate corrective action within 24 hours and complete
corrective action as expediently as practical. [40 CFR 60 Subpart OOO, R307-401-8]

II.B.2.d.1 Records of the water sprays inspections shall be kept and maintained in a logbook for all periods
when the plant is in operation. The records shall include the following items:

A. Date the inspections were made

B. Any corrective actions taken

C. Control mechanism used if sprays are not operating.

[40 CFR 60 Subpart OOO, R307-401-8]

II.B.2.e The owner/operator shall conduct an initial performance test for all crushers, screens, and
conveyor transfer points on site within 60 days after achieving maximum production rate but not
later than 180 days after initial startup. Performance tests shall meet the limitations specified in
Table 3 of Subpart OOO. Records of initial performance tests shall be kept and maintained on
site for the lifetime of the equipment. [40 CFR 60 Subpart OOO, R307-401-8]

II.B.2.e.1 Initial performance tests for fugitive emission limits shall be conducted according to 40 CFR
60.675(c). The owner/operator may use methods and procedures specified in 40 CFR 60.675(e)
as an alternative. [40 CFR 60 Subpart OOO, R307-401-8]

II.B.2.e.2 The owner/operator shall submit written reports of the results of all performance tests conducted
to demonstrate compliance with 40 CFR 60.672 to the Director, attn.: Compliance Section. The
submission shall be postmarked no later than 180 days from the date of this AO or no later than
180 days from equipment start-up, whichever is later. [40 CFR 60 Subpart OOO, R307-401-8]

II.B.3 All Haul Roads and Fugitive Dust Sources Requirements
II.B.3.a The owner/operator shall not allow visible emissions from haul roads and fugitive dust sources to
exceed 20% opacity on site and 10% at the property boundary. [R307-309-5]

II.B.3.a.1 Visible emission determinations for fugitive dust from haul roads and operational areas shall use
procedures similar to Method 9. The normal requirement for observations to be made at 15-
second intervals over a six-minute period, however, shall not apply. 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]

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II.B.3.b The owner/operator shall comply with a FDCP consistent with R307-309-6.
[R307-309-6, R307-401-8]

II.B.3.c The owner/operator shall ensure the entry haul road is paved for no less than 0.59 miles in
length. [R307-401-8]

II.B.3.c.1 The paved road length shall be determined through source records or GPS measurements.
[R307-401-8]

II.B.3.d The owner/ operator shall sweep and apply water to the on-site paved roads as necessary to
maintain the listed opacity requirements. [R307-401-8]

II.B.3.e The owner/operator shall use a chemical suppressant and water application on unpaved haul
roads to maintain the opacity limits listed in this AO. [R307-401-8]

II.B.3.e.1 Records of treatments shall include:

A. The date, time, and location of applications.

B. The volume of chemical suppressant applied (as applicable).

C. The volume of water applied.

[R307-401-8]

II.B.3.e.2 Records of water application shall be kept for all periods when the plant is in operation.
[R307-401-8]

II.B.4 Hot Mix Asphalt Plant Operating Requirements
II.B.4.a The owner/operator shall not produce more than 380,000 tons of hot mix asphalt per rolling 12-
month period and 6,000 tons per day. [R307-401-8]

II.B.4.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new
12-month total by the 20th day of each month using data from the previous 12 months. To
determine compliance with the daily limitation the owner/operator shall maintain a log of hot
mix asphalt operations. Records of production shall be kept for all periods when the plant is in
operation. Production and daily output shall be determined by the belt scale on the initial feeder,
vendor receipts, or other methods approved by the Director. The records of production and daily
output shall be kept on a daily basis. [R307-401-8]

II.B.4.b The owner/operator shall use natural gas, propane, fuel oil, or on-specification used oil as
defined in R315-15, or any combination thereof as fuel in the hot mix asphalt plant.
[R307-401-8]

II.B.4.c The sulfur content of any fuel oil burned in the hot mix asphalt plant shall not exceed 15 ppm by
weight. [R307-401-8]

II.B.4.c.1 The sulfur content shall be determined by ASTM Method D2880-71, D4294-89, or approved
equivalent. Certification of fuel oil shall be either by the owner/operator's own testing or by test
reports from the fuel oil marketer. [R307-203-1, R307-401-8]

II.B.4.c.2 The owner/operator shall keep and maintain records of the test certification of sulfur content in
fuel oil. Records of the test certifications shall be kept for all periods when the plant is in
operation. [R307-203-1, R307-401-8]

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II.B.4.d The owner/operator shall use a baghouse to control process streams from the asphalt plant drum.
The baghouse shall be sized to handle at least 69,000 ACFM. All exhaust air from the drum shall
be routed through the baghouse before being vented to the atmosphere. [R307-401-8]

II.B.4.e The owner/operator shall install a manometer or magnehelic pressure gauge to measure the
differential pressure across the baghouse. The static pressure differential across the baghouse
shall be between 2.0 to 6.0 inches of water column. [R307-401-8]

II.B.4.e.1 The pressure gauge shall be located such that an inspector/operator can safely read the indicator
at any time. The pressure gauge shall measure the pressure drop in 1-inch water column
increments or less. The pressure gauge shall be calibrated according to the manufacturer's
instructions at least once every 12 months. [R307-401-8]

II.B.4.e.2 The owner/operator shall record the reading of the pressure gauge at least once per operating day.
[R307-401-8]

II.B.4.f The owner/operator shall equip the lime silo with a fabric filter, a baghouse, a bin vent, or a dust
collector to control particulate emissions generated during filling of the silos. [R307-401-8]

II.B.4.g PM10 and PM2.5 emissions from the asphalt plant baghouse shall not exceed:

Pollutant: lb/hr Grains/dscf
(68 F, 29.92 in Hg)
Pit Run Material:

PM10 6.17 0.024
PM2.5 6.17 0.024
TSP 7.71 0.030
Recycled Pit Run Asphalt Pavement Mix:
PM10 7.20 0.028
PM2.5 7.20 0.028
TSP 9.00 0.035.

[40 CFR 60 Subpart I, R307-312, R307-401-8]

II.B.4.g.1 Stack testing to show compliance with the emission limitations stated in the above condition
shall be performed as specified below:

Emission Point: Drum Mixer exhaust passing through the baghouse

Pollutant Testing Status Test Frequency

TSP * #

PM10 and PM2.5 ** @

* Initial compliance testing was conducted.

** Initial test is not required unless specified by the Director.

# Initial test is required. Subsequent tests shall only be performed for PM10 and PM2.5.

@ Test every five years or sooner if required by the Director. Tests may be required if the
source is suspected to be in violation with other conditions of this AO.

[R307-165, R307-401-8]

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II.B.4.g.2 A. Notification:

At least 30 days prior to conducting any emission testing required under any part of
UAC, R307, the owner or operator shall notify the Director of the date, time and place of
such testing and shall submit a source test protocol to the Director. The source test
protocol shall outline the proposed test methodologies, stack to be tested, and procedures
to be used. If directed by the Director, the owner/operator shall attend a pretest
conference. The pretest conference shall include representation from the owner/operator,
the tester, and the Director.

B. Reporting:

Upon completion of the DAQ accepted testing methods, the owner/operator shall submit
a copy of the results from each performance test as conducted to the Director within 60
days after the test has been completed.

C. Sample Location:

The emission point shall be designed to conform to the requirements of 40 CFR 60,
Appendix A, Method 1, or other methods as approved by the Director. An Occupational
Safety and Health Administration (OSHA) or Mine Safety and Health Administration
(MSHA) approved access shall be provided to the test location.

D. Volumetric Flow Rate:

40 CFR 60, Appendix A, Method 2 or other EPA approved testing method, as acceptable
to the Director.

E. TSP

TSP emissions shall be determined by 40 CFR 60, Appendix A, Method 5 or other EPA
approved testing method, as acceptable to the Director

F. PM10

The following methods shall be used to measure filterable particulate emissions: 40 CFR
51, Appendix M, Method 201 or Method 201A, or other EPA-approved testing method,
as acceptable to the Director. If other approved testing methods are used which cannot
measure the PM10 fraction of the filterable particulate emissions, all of the filterable
particulate emissions shall be considered PM10.

G. PM2.5

Filterable PM2.5 emissions shall be determined by 40 CFR 51, Appendix M, Method
201A, or other EPA approved testing method, as acceptable to the Director.

The following methods shall be used to measure condensable particulate emissions: 40
CFR 51, Appendix M, Method 202, or other EPA-approved testing method, as
acceptable to the Director.

The condensable particulate emissions shall not be used for compliance demonstration,
but shall be used for inventory purposes.

H. Calculations

To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined
by the appropriate methods above shall be multiplied by the volumetric flow rate and any
necessary conversion factors determined by the Director, to give the results in the
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specified units of the emission limitation.

I. Test Conditions

All tests shall be conducted in accordance with R307-165-4.

[R307-165, R307-401-8]

II.B.4.g.3 New Source Operation

For a new source/emission point, the production rate during all compliance testing shall be no
less than 90% of the maximum production rate (rated capacity) of the plant. If the maximum AO
allowable production rate has not been achieved at the time of the test, the following procedure
shall be followed:

A. Testing shall be at no less than 90% of the production rate achieved to date.

B. If the test is passed, the new maximum allowable production rate shall be 110% of the
tested achieved rate. This new maximum allowable production rate shall be less than
90% of the allowed maximum production rate. This new allowable maximum
production rate shall remain in effect until successfully tested at a higher rate.

C. The owner/operator shall request a higher production rate when necessary. Testing at no
less than 90% of the higher rate shall be conducted. A new maximum production rate
(110% of the new rate) will then be allowed if the test is successful. This process may
be repeated until the maximum AO production rate is achieved.

Existing Source Operation

For an existing source/emission point, the production rate during all compliance testing
shall be no less than 90% of the maximum production achieved in the previous three (3)
years.

[R307-401-8]

II.B.4.h The owner/operator shall comply with the limitations and compliance requirements under R307-
312-5 for burning a fuel other than natural gas or liquefied petroleum gas (LPG). [R307-312]

II.B.5 Concrete Batch Plant
II.B.5.a The owner/operator shall not produce more than 168,986 cubic yards per rolling 12-month
period. [R307-401-8]

II.B.5.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new
12-month total by the 20th day of each month using data from the previous 12 months. Records
of production shall be kept for all periods when the plant is in operation. Production shall be
determined by production records, vendor or sales receipts, or other methods approved by the
Director. The records of production shall be kept on a monthly basis. [R307-401-8]

II.B.5.b The owner/operator shall not allow visible emissions from the concrete batch plant to exceed 7%
opacity. [R307-312]

II.B.5.c The owner/ operator shall control emissions from on-site storage silos with bin vents.
[R307-401-8]

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PERMIT HISTORY

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

Supersedes AO DAQE-AN100550001-19 dated May 24, 2019
Incorporates NOI dated March 24, 2020
Incorporates Additional information dated June 25, 2020
Incorporates Additional information dated July 16, 2020

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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

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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

Appendix “S”
Field Work Safety Plan

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Kilgore Companies LLC
Beckie Hawkins
PROJ-041331SF
Hyrum, Utah Hot Mix Asphalt (HMA) Plant
Maxim 400 TPH HMA
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Cheyney Guymon
Bryan Jorgensen 801-250-0132
X
X
Hyrum 400 TPH HMA PROJ-041331-SF
July 9, 2024
Compliance PM/PM10/PM2.5 and VEOs
X
X
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X
X
Existing platform(s) and hand/guard rails
Lifted by rope or hand-carried
Joby Dunmire May 8, 2024
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Kilgore Companies LLC
2024 PM, PM10, PM2.5, and VEOs Compliance Source Test Plan, Hyrum Aggregate, Asphalt, and Concrete Maxim
400 TPH HMA Plant, Hyrum, Utah

This is the Last Page of This Document
If you have any questions, please contact one of the following
individuals by email or phone.

Name: Beckie Hawkins
Title: District Manager
Region: Great Plains Region, Utah Office
Email: [e-mail]
Phone: [phone]

Name: Cheyney Guymon
Title: Field Project Manager
Region: Great Plains Region, Utah Office
Email: [e-mail]
Phone: [phone]

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