DAQ-2025-002565

DAQE-

RN121580006 May 6, 2025 Adam Cook
Sunroc Corporation 730 North 1500 West Orem, UT 84057
[e-mail] Dear Adam Cook,
Re: Engineer Review - Administrative Amendment to Approval Order (AO) DAQE-AN0121580005-09 for a 10-Year Review and Permit Updates Project Number: N121580006 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. Sunroc Corporation should complete this review within 10 business days of receipt. Sunroc Corporation should contact Lucia Mason at [phone] if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Lucia Mason at [e-mail] the signed cover letter. Upon receipt of the signed cover letter, the DAQ will prepare an Approval Order (AO) for signature by the DAQ Director. If Sunroc Corporation does not respond to this letter within 10 business days, the project will move forward without source concurrence. If Sunroc Corporation has concerns that cannot be resolved and the project becomes stagnant, the DAQ Director may issue an Order prohibiting construction.
Approval Signature _____________________________________________________________ (Signature & Date)
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
Department of Environmental Quality
Tim Davis Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION
Project Number N121580006 Owner Name Sunroc Corporation Mailing Address 730 North 1500 West
Orem, UT, 84057 Source Name Sunroc Corporation- Mona Aggregate Processing Plant
Source Location 1040 East North Canyon Road Mona, UT 84645
UTM Projection 428,931 m Easting, 4,411,543 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 1442 (Construction Sand & Gravel) Source Contact Kamren Garfield Phone Number [phone] Email [e-mail] Billing Contact Kamren Garfield Phone Number [phone]
Email [e-mail] Project Engineer Lucia Mason, Engineer
Phone Number [phone] Email [e-mail]
Notice of Intent (NOI) Submitted November 27, 2024 Date of Accepted Application December 13, 2024

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 2
SOURCE DESCRIPTION General Description
Sunroc Corporation (Sunroc) operates an aggregate pit in Mona, Juab County. Equipment includes one (1) crusher, one (1) screen, one (1) conveyor, and one (1) 100 kW diesel generator. Sunroc can operate up to 1,120 hours and produce up to 225,000 tons of aggregate material per
year. NSR Classification: 10 Year Review Source Classification Located in Attainment Area Juab 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 MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines Title V (Part 70) Area Source
Project Proposal Administrative Amendment to Approval Order (AO) DAQE-AN0121580005-09 for a 10-Year Review and Permit Updates Project Description
This is an administrative amendment to AO DAQE-AN0121580005-09, dated October 7, 2009. The DAQ is conducting a 10-year review to update the language, format and rule applicability of the 2009 AO. EMISSION IMPACT ANALYSIS
This is a 10-year review. There are no changes to equipment or emissions at this time. Therefore, no modeling
is required. [Last updated March 17, 2025]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 3
SUMMARY OF EMISSIONS
The emissions listed below are an estimate of the total potential emissions from the source. Some rounding of emissions is possible.
Criteria Pollutant Change (TPY) Total (TPY) CO2 Equivalent 0 86.00 Carbon Monoxide 0 1.94
Nitrogen Oxides 0 6.96
Particulate Matter - PM10 0 2.52
Particulate Matter - PM2.5 0 2.52
Sulfur Dioxide 0 0.58
Volatile Organic Compounds 0 0.73 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Generic HAPs (CAS #GHAPS) 0 180
Change (TPY) Total (TPY)
Total HAPs 0 0.09

Note: Change in emissions indicates the difference between previous AO and proposed modification.

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 4
Review of BACT for New/Modified Emission Units 1. BACT review regarding 10-Year Review
This is a 10-year review. There are no changes to equipment or emissions at this time. Therefore, a BACT analysis is not required. [Last updated March 17, 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 N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 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 Mona Aggregate Processing Plant

II.A.2 One (1) Roller Cone Crusher Capacity: 70 tph Manufacture Date: 1964

II.A.3 One (1) Pro Screen Capacity: 200 tph Manufacture Date: 1995
NSPS Applicability: 40 CFR 60 Subpart OOO
II.A.4 One (1) Conveyor Size: 3' x 35'
Manufacture Date: 1998 NSPS Applicability: 40 CFR 60 Subpart OOO

II.A.5 One (1) Diesel Generator Rating: 100 kW Manufacture Date: prior to April 1, 2006 MACT Applicability: 40 CFR 63 Subpart ZZZZ

II.A.6 Other Associated Equipment
- Listed for informational purposes only -

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 6
SECTION II: SPECIAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label): II.B REQUIREMENTS AND LIMITATIONS
II.B.1 NEW Site-wide Requirements:
II.B.1.a NEW The owner/operator shall not produce more than 225,000 tons of aggregate material per rolling 12-month period. [R307-401-8]
II.B.1.a.1
NEW
To determine compliance with the above production limit the owner/operator shall:
A. Determine production by operator records B. Calculate a new 12-month production total by the 20th day of each month using data
from the previous 12 months
C. Keep records of production on a daily basis
D. Keep records of production for all periods the plant is in operation [R307-401-8]
II.B.1.b NEW The owner/operator shall not operate the Mona Aggregate Processing Plant for more than 1,120 hours per rolling 12-month period. [R307-205-5]
II.B.1.b.1 NEW To determine compliance with the above operational limit the owner/operator shall: A. Determine operational hours by supervisor monitoring and maintaining an operations
log B. Calculate a new 12-month operating hour total by the 20th day of each month using
data from the previous 12 months C. Keep records of operating hours on a daily basis D. Keep records of operating hours for all periods the plant is in operation [R307-205-5]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 7
II.B.1.c NEW The owner/operator shall:
A. Train all employees who operate equipment listed in II.A on the relevant conditions in
this AO and associated operating practices at least once per calendar year B. Retrain all operators within 60 days of every AO update
C. Train new hirers and employees assigned with the responsibility of operating any of
the equipment in II.A.1 within 60 days of the change D. Make this AO available to all employees that operate equipment listed in II.A
[R307-401-8]
II.B.1.c.1 NEW To demonstrate compliance with the above employee training requirements, the owner/operator shall maintain records of employee trainings. [R307-401-8]
II.B.1.d NEW Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions from any source on-site to exceed 20% opacity. [R307-201-3] II.B.1.d.1 Unless otherwise specified in this AO, opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-201-3]
II.B.2
NEW
Aggregate Processing Equipment Requirements:
II.B.2.a NEW The owner/operator shall not exceed the following opacity limits:
A. Crushers installed prior to April 22, 2008 - 15% opacity
B. Crushers installed or reconstructed on or after April 22, 2008 - 12% opacity
C. All screens - 10% opacity D. All conveyor transfer points - 10% opacity E. All conveyor drop points - 20% opacity [40 CFR 60 Subpart OOO, R307-401-8] II.B.2.b NEW The owner/operator shall install water sprays or chemical dust suppression sprays on all crushers, screens, and conveyor transfer points on-site to control fugitive emissions. The
owner/operator shall operate sprays as required to maintain the opacity limits listed in this AO. [R307-401-8]
II.B.2.c NEW 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 A, 40 CFR 60 Subpart OOO]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 8
II.B.2.c.1 NEW 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]

II.B.2.d NEW 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 A, R307-401-8] II.B.3 NEW Engine Requirements:
II.B.3.a NEW The owner/operator shall not allow visible emissions from the stationary diesel engine on-site to exceed 20% opacity. [R307-201-3] II.B.3.b NEW The owner/operator shall use only #2 fuel oil as fuel in the on-site engines. [R307-401-8] II.B.3.c NEW The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less. [40 CFR 63 Subpart ZZZZ]

II.B.3.c.1 NEW Sulfur content shall be decided by ASTM Method D-4294-89 or approved equivalent. The sulfur content shall be tested if directed by the Director. [R307-203]
II.B.4 NEW Fugitive Dust Requirements:
II.B.4.a
NEW
The owner/operator shall not allow visible emissions from haul road traffic and mobile
equipment in operational areas to exceed 20% opacity. [R307-205-4] II.B.4.a.1 NEW 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. [R307-205-4]

II.B.4.b NEW The owner/operator shall not exceed 500 ft of haul roads. [R307-401-8]
II.B.4.c NEW The owner/operator shall limit vehicle speed along the haul roads to 10 miles per hour. The owner/operator shall post the vehicle speed limit. [R307-401-8]
II.B.4.d
NEW
The owner/operator shall apply water spray and/or chemical treatment on unpaved operational
areas used by mobile equipment such that the surface is kept in a damp/moist condition unless the temperature is below freezing. The Director shall approve a chemical treatment plan if any chemical treatment is used. [R307-401-8]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 9
II.B.4.d.1 NEW The owner/operator shall keep records of the following regarding water spray/chemical treatment when the plant is in operation: A. Treatment date B. Number of treatments made, dilution ration, and quantity
C. Rainfall received, if any, and approximate amount
D. Time of day treatments were made
[R307-401-8]
II.B.4.e
NEW
The owner/operator shall water storage piles to minimize generation of fugitive dusts to
maintain the opacity limits listed in this AO. [R307-401-8] II.B.4.e.1 NEW The owner/operator shall keep records of water treatment used on storage piles for all period the plant is in operation. [R307-401-8]
II.B.4.f NEW The owner/operator shall maintain the moisture content of material at 4.0% by weight at a minimum. [R307-401-8] II.B.4.f.1 NEW The owner/operator shall test the moisture content of material if directed by the Director using the appropriate ASTM method. [R307-401-8]

II.B.4.g NEW The owner/operator shall control emissions from disturbed area at all times (24 hours per day) until the area is reclaimed. [R307-205]
II.B.4.g.1 NEW The owner/operator shall keep records of treatment and/or reclamation of disturbed area for all periods the plant is in operation. [R307-401-8]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 10
PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the
following documents: Supersedes DAQE-AN0121580005-09 dated October 7, 2009
REVIEWER COMMENTS
1. Comment regarding 10-Year Review:
This is a 10-year review. The language and formatting of this AO have been updated to reflect the style of modern permits. PTE values and the approved equipment list have been moved to respective new sections. All contact information has been updated. The source is not modifying and/or installing any equipment. Rule applicability has been reviewed and updated. Notes on Location: On February 13, 2025, the source confirmed the site's UTM coordinates. According to Google Earth imagery dated 7/4/2023, the Mona Aggregate Processing Plant consists of a small patch of disturbed area. The facility should not be confused with the larger aggregate pit to the east. See ER "Comment Regarding Site Operational Status" for more information on the current site operations. Notable Condition Updates: II.B.2.a - A 12% opacity limit for engines installed or modified after April 22, 2008, has been added
in accordance with 40 CFR 60 (NSPS) Subpart OOO in the event of approved crushers listed in section II.A.1 being installed or reconstructed. II.B.2.c, II.B.2.c.1, and II.B.2.d - Initial performance testing requirements were added to the permit
in accordance with 40 CFR 60 (NSPS) Subparts A and OOO. These condition replace II.B.2.g in AO DAQE-AN0121580005-09. II.B.3.c - The sulfur content allowed in fuel oil burned onsite has been lowered from 0.5wt% to 15 ppm in accordance with 40 CFR 63 (MACT) Subpart ZZZZ.
Emission Updates: The PTE for PM2.5 and CO2e were not specified in the previous AO (DAQE-AN0121580005-09, dated October 7, 2009) and have been added to the Summary of Emissions. For a conservative
estimate, the PTE of PM2.5 was set equal to the PTE of PM10. CO2e was calculated based on the 100 kW rating listed in Equipment ID II.A.5 and 1,120 annual operational hours as limited in condition II.B.1.b. CO2e emission factors and global warming potentials were sourced from AP-42 Table 3.3-1
& Table 3.4-1. There are no other changes to the emission estimates at this time. Federal Standard Applicability Updates: 40 CFR 63 (MACT) Subpart ZZZZ has been added to the permit. See details in ER "Comment Regarding Federal Standard Applicability."
See ER "Comment Regarding Federal Standard Applicability" for notes regarding 40 CFR 63 (MACT) Subpart OOO applicability as well.
[Last updated May 6, 2025]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 11
2. Comment regarding NSR Permit Status of Roller Cone Crusher (Equipment ID II.A.1): The roller cone crusher listed in Equipment ID II.A.2 was manufactured in 1964, prior to the
"grandfathered source" or "pre-November 19,1969" NSR applicability cut-off date. However, the Mona Aggregate Processing Plant was first permitted on January 5, 1999 (AO DAQE-002-1999), well after 1969. The roller cone crusher is not considered a pre-November 19,1969 source and is thus subject to all applicable NSR requirements in this AO. Reference ER "Comment Regarding Federal Standard Applicability" for the crusher's 40 CFR 60 (NSPS) Subpart OOO applicability. [Last updated March 27, 2025]
3. Comment regarding Site Operational Status: On January 28, 2025, the source confirmed the facility is not currently in operation but that they would like to keep their AO. In the event of operations resuming, the source must notify the DAQ and comply with the conditions regarding modified sources in UAC R307-401 if any equipment not listed in Section II: Permitted Equipment is brought on site. Equipment installed onsite must undergo initial performance tests according to conditions II.B.2.c, II.B.2.c.1, II.B.2.d, and 40 CFR 60 Subpart
OOO. By maintaining this AO, the source is subject to annual NSR and aggregate fees. [Last updated March 27, 2025] 4. Comment regarding Federal Standard Applicability: 40 CFR 60 (NSPS) Subpart OOO: Standards of Performance for Nonmetallic Mineral Processing Plants. Subpart OOO applies to facilities that operate crushers, screens and belt
conveyors among other aggregate processing equipment commenced construction, modification, or reconstruction after August 31, 1983. Equipment at this facility includes crushers, screens and other aggregate processing equipment manufactured post 1983. Therefore, Subpart OOO applies. It should be noted that the roller cone crusher listed in Equipment ID II.A.2 was manufactured in 1964 and predates MACT Subpart OOO applicability. If the cone crusher is installed, modified, or reconstructed (defined in 40 CFR 60.15(b)) the crusher will become subject to 40 CFR 60 Subpart OOO. 40 CFR 60 (NSPS) Subpart IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines. NSPS Subpart IIII applies to stationary diesel engines that were manufactured after April 1, 2006, and are not fire pump engines. The diesel generator listed in
Equipment ID II.A.5 was permitted in AO DAQE-002-1999 dated January 5, 1999, long before the 2006 applicability cut off. Therefore, NSPS Subpart IIII does not apply. 40 CFR 63 (MACT) Subpart ZZZZ: National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines. Subpart ZZZZ applies to
facilities that operate reciprocating internal combustion engines. The generator engine listed in Equipment II.A.5 falls under this definition. Thus, Subpart ZZZZ applies. Subpart ZZZZ was not listed on the source's previous AO. Sunroc should review MACT Subpart ZZZZ to ensure they are in compliance. [Last updated March 27, 2025] 5. Comment regarding 10-Year Review:
Title V of the 1990 Clean Air Act (Title V) applies to the following:
1. Any major source

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 12
2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act, Standards of Performance for New Stationary Sources;
3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous Air Pollutants. 4. Any Title IV affected source.
This facility is not a major source and is not a Title IV source. However, the facility is subject to 40
CFR 60 (NSPS) Subpart OOO under Section 111 of the Act. Therefore, Title V regulations apply to the facility as an area source. [Last updated March 27, 2025]

Engineer Review N121580006: Sunroc Corporation- Mona Aggregate Processing Plant May 6, 2025 Page 13
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
Equipment Details
Rating 134 hp = (100 kw)
Operational Hours 1,120 hours/year
Sulfur Content 15 ppm or 0.0015%
Criteria Pollutant
Emission
Standards
(g/hp-hr)
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 0.031 4.15 2.33
CO 6.68E-03 0.90 0.50
PM10 2.20E-03 0.29 0.17
PM2.5 2.20E-03 0.29 0.17
VOC 2.51E-03 0.34 0.19
SO2 1.21E-05 0.00 0.00 AP-42 Table 3.4-1
HAP 0.00 0.00 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 1.15 154 86
Methane (mass basis)25 0 0CO2e86
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 9.33E-04 8.75E-04 4.90E-04
Toluene 4.09E-04 3.84E-04 2.15E-04
Xylenes 2.85E-04 2.67E-04 1.50E-041,3-Butadiene 3.91E-05 3.67E-05 2.05E-05
Formaldehyde 1.18E-03 1.11E-03 6.20E-04
Acetaldehyde 7.67E-04 7.19E-04 4.03E-04
Acrolein 9.25E-05 8.68E-05 4.86E-05
Naphthalene 8.48E-05 7.95E-05 4.45E-05
Acenaphthylene 5.06E-06 4.75E-06 2.66E-06
Acenaphthene 1.42E-06 1.33E-06 7.46E-07
Fluorene 2.92E-05 2.74E-05 1.53E-05Phenanthrene2.94E-05 2.76E-05 1.54E-05
Anthracene 1.87E-06 1.75E-06 9.82E-07
Fluoranthene 7.61E-06 7.14E-06 4.00E-06
Pyrene 4.78E-06 4.48E-06 2.51E-06
Benz(a)anthracene 1.68E-06 1.58E-06 8.82E-07
Chrysene 3.53E-07 3.31E-07 1.85E-07
Benzo(b)fluoranthene 9.91E-08 9.30E-08 5.21E-08
Benzo(k)fluoranthene 1.55E-07 1.45E-07 8.14E-08Benzo(a)pyrene 1.88E-07 1.76E-07 9.88E-08
Indeno(1,2,3-cd)pyrene 3.75E-07 3.52E-07 1.97E-07
Dibenz(a,h)anthracene 5.83E-07 5.47E-07 3.06E-07Benzo(g,h,l)perylene 4.89E-07 4.59E-07 2.57E-07
Emission Factor
(lb/MMBtu)
AP-42 Table 3.3-2,
Table 3.4-3, &
Table 3.4-4
(1,3-Butadiene will
not popluate if the
engine size is greater
than 600 hp. AP-42
does not list 1,3-
Butadiene for engines greater than
600 hp.)
Diesel-Fired Engines
Emergency Engines should
equal 100 hours of operation
per year
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
AP-42 Table 3.3-1
& Table 3.4-1
Page 1 of 1 Version 1.1
February 21, 2019
Lucia Mason <[e-mail]>
Fwd: Incorrect Facility Coordinates
2 messages
Alan Humpherys <[e-mail]>Fri, Dec 6, 2024 at 10:13 AM
To: Lucia Mason <[e-mail]>
Lucia,
Please see the note below for the coordinates of a 10-year review that you are working on. Site 12158. If you have any questions about this, please let me know.
Thanks,
Alan
---------- Forwarded message ---------
From: Elizabeth Slade <[e-mail]>
Date: Fri, Dec 6, 2024 at 9:27 AM
Subject: Incorrect Facility Coordinates
To: Alan Humpherys <[e-mail]>
Cc: Catherine Williams <[e-mail]>
Hi Alan! Happy Friday!
I have been working on the upload of our 2023 emissions data to the NEI, and there was a possible duplicate error for two facilities, 12158 Sunroc LLC - Mona Agg
Processing Plant and 12121 Kilgore LLC - Mona Pit. After digging into this I discovered that both of their permits (DAQE-AN0121580005-09 and DAQE-
AN121210001-13, attached below) lists the exact same UTM Coordinates. I contacted Kamren Garfield, our contact for the Sunroc Mona Pit (12158), and he
verified that the coordinates on the permit are incorrect and gave us an updated Lat/Long that we then updated in SLEIS:
3/18/25, 10:21 AM State of Utah Mail - Fwd: Incorrect Facility Coordinates
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1817712000718939783&simpl=msg-f:1817712000718939783&simpl=msg-a:r-3609575942213045915 1/3
Just wanted to give you this heads up that this might be something that needs to be addressed in their next permit modification.
Let me know if you have any questions! Thanks!
--
Elizabeth Slade
Environmental Scientist | Inventory Section
P: [phone]
airquality.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
3/18/25, 10:21 AM State of Utah Mail - Fwd: Incorrect Facility Coordinates
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1817712000718939783&simpl=msg-f:1817712000718939783&simpl=msg-a:r-3609575942213045915 2/3
--
Alan Humpherys
Manager | Minor NSR Section
P: [phone]
F: [phone]
airquality.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
2 attachments
DAQE-AN121210001-13 (1).pdf
63K
DAQE-AN0121580005-09 (1).pdf
409K
Lucia Mason <[e-mail]>Mon, Dec 9, 2024 at 6:39 AM
To: Alan Humpherys <[e-mail]>
Got it. Thanks for the heads up.
[Quoted text hidden]
3/18/25, 10:21 AM State of Utah Mail - Fwd: Incorrect Facility Coordinates
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-f:1817712000718939783&simpl=msg-f:1817712000718939783&simpl=msg-a:r-3609575942213045915 3/3
Lucia Mason <[e-mail]>
Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
14 messages
Lucia Mason <[e-mail]>Wed, Nov 27, 2024 at 3:51 PM
To: [e-mail]
Hi Kamren,
The DAQ is making customary permit updates to the following three (3) Sunroc Approval Orders:
DAQE-AN0128990006-09, dated 10/12/2009 (SR 9 (Coral Canyon) Aggregate Pit)
DAQE-AN0121580005-09, dated 10/7/2009 (Mona Aggregate Processing Plant)
DAQE-AN0142290001-10, dated 1/13/2010 (Winchester Cinder Pit)
Please provide the following contact information for each site:
Site: phone number, and email (if applicable)
Company: physical address, billing address, mailing address, phone number, fax number (if applicable) and email
Environmental contact: name, physical address, mailing address, phone number, fax number (if applicable) and email
Billing contact: (if different from environmental contact): name, physical address, phone number, fax number (if applicable) and email
Name on Approval Order: (if different from environmental contact): name, physical address, mailing address, phone number, fax number (if applicable)
and email
Please reach out with any questions.
Happy Thanksgiving!
Lucia
Kamren Garfield <[e-mail]>Mon, Dec 9, 2024 at 11:54 AM
To: Lucia Mason <[e-mail]>
Hi Lucia,

The contact information/billing address will be the same for all the sites. See below in red for the requested information.

Thanks,
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…1/7
Kamren

From: Lucia Mason <[e-mail]>
Sent: Wednesday, November 27, 2024 3:51 PM
To: Kamren Garfield <[e-mail]>
Subject: Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229

Hi Kamren,

The DAQ is making customary permit updates to the following three (3) Sunroc Approval Orders:
DAQE-AN0128990006-09, dated 10/12/2009 (SR 9 (Coral Canyon) Aggregate Pit)
DAQE-AN0121580005-09, dated 10/7/2009 (Mona Aggregate Processing Plant)
DAQE-AN0142290001-10, dated 1/13/2010 (Winchester Cinder Pit)
Please provide the following contact information for each site:
Site: phone number, and email (if applicable)
801-802-6900
[e-mail]
Company: physical address, billing address, mailing address, phone number, fax number (if applicable) and email
730 N 1500 W, Orem, UT 84057
801-802-6900
Environmental contact: name, physical address, mailing address, phone number, fax number (if applicable) and email
Kamren Garfield
730 N 1500 W
Orem, UT 84057
801-802-6933
[e-mail]
Billing contact: (if different from environmental contact): name, physical address, phone number, fax number (if applicable) and email
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…2/7
Same as Environmental Contact; also add [e-mail]
Name on Approval Order: (if different from environmental contact): name, physical address, mailing address, phone number, fax number (if applicable)
and email
Adam Cook, Vice President
730 N 1500 W
Orem, UT 84057
801-802-6900
[e-mail]
[Quoted text hidden]
Lucia Mason <[e-mail]>Tue, Dec 10, 2024 at 9:29 AM
To: Kamren Garfield <[e-mail]>
Perfect. Thank you.
[Quoted text hidden]
Lucia Mason <[e-mail]>Fri, Dec 27, 2024 at 11:58 AM
To: Kamren Garfield <[e-mail]>
Hi Kamren,
I wasn't able to determine the cost of annual aggregate fees or what date triggers annual fees. Once management is back in the office I'll reach out with answers.
If Sunroc doesn't intend on using the equipment that was originally permitted at the Mona Aggregate Processing Plant (site 12158) the DAQ would encourage you
to apply for a permit revocation before the end of the year. It's unlikely that revocation letters for either site 12158 or the Winchester Cinder Pit (site 14229) would
be issued before the start of 2025. However, if annual NSR or aggregate fees would be triggered due to the change in calendar years the DAQ would discuss
internally to determine if waiving the fees is possible.
Lastly, please confirm the address of the SR9 Coral Canyon Aggregate Pit for the site's 10-year review.
Let me know how you would like to proceed with respect to sites 12158 and 14229. Please reach out with any questions.
Happy holidays!
Lucia
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…3/7
[Quoted text hidden]
Lucia Mason <[e-mail]>Wed, Jan 8, 2025 at 11:03 AM
To: Kamren Garfield <[e-mail]>
Hi Kamren,
I'm following up on the email I sent on December 27th. Aggregate fees will be billed within the next few days while NSR fees typically are issued February 1st.
However, if Sunroc Corporation chooses to issue revocations for sites 12158 and 14229 in the near future the DAQ will consider waiving the annual fees for these
sites. Let me know how you would like to proceed.
You can apply for a permit revocation here: https://utahgov.co1.qualtrics.com/jfe/form/SV_0OFm4bCnka4CQVo
Lastly, "North Coral Ridge Dr" is the address the DAQ currently has on file for site 12899, Coral Canyon Aggregate Pit. Is there a more specific address you use for
the site?
Please reach out with any questions.
Best,
Lucia
[Quoted text hidden]
Kamren Garfield <[e-mail]>Wed, Jan 8, 2025 at 12:11 PM
To: Lucia Mason <[e-mail]>
Thanks for the reminder. I have reached out to our area managers for their approval to revoke those permits, I will get back to you on that.

As for Coral Canyon, I can’t find a good street address in our leases or on Google, I only have legal descriptions with township, range, etc. Let’s just stick with the
current address in our Approval Order:
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…4/7

Thanks,

Kamren Garfield
ENVIRONMENTAL SPECIALIST
O [phone] C [phone]
WWW.CLYDEINC.COM
[Quoted text hidden]
Lucia Mason <[e-mail]>Wed, Jan 8, 2025 at 12:15 PM
To: Kamren Garfield <[e-mail]>
Sounds good. Thank you.
[Quoted text hidden]
Lucia Mason <[e-mail]>Thu, Jan 16, 2025 at 11:40 AM
To: Kamren Garfield <[e-mail]>
Hey Kamren,
I have a follow up question on site 12899. Our latest compliance report for the site notes that the horizontal shaft impactors (II.A.4), the cone crusher (II.A.5), the
two (2) closed-circuit impactor plants (II.A.6), and the 800 hp diesel generator (II.A.13) have all be removed from the site. Is this correct? If so, would Sunroc like
this equipment removed from their AO?
Please let me know how you would like to proceed.
Best,
Lucia
[Quoted text hidden]
DAQC-CI128990001-24 - signed.pdf
1814K
Kamren Garfield <[e-mail]>Tue, Jan 28, 2025 at 12:35 PM
To: Lucia Mason <[e-mail]>
Lucia,
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…5/7
Let’s keep all the equipment on the Coral Canyon permit. Also, let’s keep the Winchester and Mona permits active.
[Quoted text hidden]
Lucia Mason <[e-mail]>Tue, Jan 28, 2025 at 12:36 PM
To: Kamren Garfield <[e-mail]>
Thank you.
[Quoted text hidden]
Lucia Mason <[e-mail]>Thu, Jan 30, 2025 at 12:20 PM
To: Kamren Garfield <[e-mail]>
Hi Kamren,
I have a follow up thought on our conversation Tuesday. Both the Winchester and Mona sites are in attainment areas. You're welcome to bank the NOx emissions
from these sites, but the banked emissions wouldn't have value unless the site's location is redesignated as a nonattainment area for particulate matter, ozone or
NOx. Even in the unlikely instance of a redesignation there could be complications with using emissions banked before the redesignation. You would also need to
revoke the AOs to bank the emissions associated with them in the first place. I just thought I'd add some context in case it changes your thoughts on revoking either
AO.
I also finally figured out how much annual aggregate fees are. They're based on total annual emissions as follows:
<20 tpy: $207.00
20-79 tpy: $414.00
80-99 tpy: $1,035.00
100+ tpy: $1,449.00
Lastly, assuming you'd still like to keep both AOs, could you confirm the addresses and UTM coordinates for the Mona and Winchester pits?
Thanks,
Lucia
[Quoted text hidden]
Lucia Mason <[e-mail]>Thu, Feb 13, 2025 at 8:21 AM
To: Kamren Garfield <[e-mail]>
Hey Kamren,
I'm checking in on the email I sent on January 30th. When you have a chance could you send over location coordinates for the Mona and Winchester pits?
Thanks,
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…6/7
Lucia
[Quoted text hidden]
Kamren Garfield <[e-mail]>Thu, Feb 13, 2025 at 9:26 AM
To: Lucia Mason <[e-mail]>
Lucia,

UTM for Mona Pit is 428930.89 m E, 4411542.74 m N
For the Mona address, just stick with the 1040 East North Canyon Road address.

UTM for the Winchester Pit is 268709.84 m E, 4119253.68 m N
Also keep the existing address for this pit
[Quoted text hidden]
Lucia Mason <[e-mail]>Thu, Feb 13, 2025 at 10:58 AM
To: Kamren Garfield <[e-mail]>
Thank you. I'll reach out if the DAQ needs additional information.
[Quoted text hidden]
3/18/25, 9:57 AM State of Utah Mail - Periodic Permit Updates (Division of Air Quality), Sites 12899, 12158, and 14229
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r-4957134682062818152&simpl=msg-a:r-5935405180131518848&simpl=msg-f:1817990130470565627&simpl…7/7
DAQE-002-1999

January 5, 1999

Ted Hone
Nebo Rock Products, Inc.
P.O. Box 572
Payson, Utah 84651

Dear Mr. Hone:

Re: Approval Order for an Aggregate Processing Plant at Mona
Juab County, CDS-B, NSPS, Title V

The attached document is an Approval Order for the above-referenced project.

Future correspondence on this Approval Order should include the engineer's name as well as the DAQE
number as shown on the upper right-hand corner of this letter. Please direct any technical questions you
may have on this project to Mr. Enqiang He. He may be reached at [phone].

Sincerely,

Ursula K. Trueman, Executive Secretary
Utah Air Quality Board

UKT:EH:aj

cc:

Central Utah District Health Department

State of Utah DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF AIR QUALITY

Michael O. Leavitt 150 North 1950 West
Governor P.O. Box 144820
Dianne R. Nielson, Ph.D. Salt Lake City, Utah 84114-4820
Executive Director [phone] Voice
Ursula K. Trueman [phone] Fax
Director [phone] T.D.D.
Web: www.deq.state.ut.us

STATE OF UTAH

Department of Environmental Quality

Division of Air Quality

APPROVAL ORDER FOR AN AGGREGATE PROCESSING
PLANT AT MONA

Prepared By: Enqiang He, Engineer
[phone]

APPROVAL NUMBER

DAQE-002-1999

Date: January 5, 1999

Source

Nebo Rock Products, Inc.
Ted Hone
[phone]

Ursula K. Trueman
Executive Secretary
Utah Air Quality Board

Abstract

Nebo Rock Products, Inc. has proposed to operate an aggregate processing plant at Mona, Juab
County, an attainment area for all criteria pollutants. Annual aggregate production is estimated at
225,000 tons. The following is its annual emissions: 2.52 tpy of PM10, 0.58 tpy of SO2, 6.96 tpy of
NOx, 1.94 tpy of CO, 0.73 tpy of VOC and 0.09 tpy of aldehydes. Dispersion modeling is not required
because emissions are below the thresholds for modeling. New Source Performance Standards
(NSPS) and Title V apply to this source. A 30-day public comment period was required.

The above-referenced project has been evaluated and found to be consistent with the requirements of the
Utah Administrative Code Rule 307 (UAC R307) and the Utah Air Conservation Act. A 30-day public
comment period was held and all comments received were evaluated. The conditions of this AO reflect
any changes to the proposed conditions which resulted from the evaluation of the comments received.
This air quality AO authorizes the project with the following conditions and failure to comply with any of
the conditions may constitute a violation of this order:

General Conditions:

1. This AO applies to the following company:

Facility Office
Nebo Rock Products, Inc.
P. O. Box 572
Payson, Utah 84651
Phone Number: [phone]
Fax Number: [phone]

The equipment listed below in this AO shall be operated at the following location:

PLANT LOCATION:

1040 East North Canyon Road, Mona, Juab County, Utah 84645 (Exit at Santaquin on
I-15, turn right to yield, turn left on State Road. Eight miles south turn left at green
houses on N. Canyon Road. Juab County) Universal Transverse Mercator (UTM)
Coordinate System: 4,411.3 kilometers Northing; 429.8 kilometers Easting; Zone 12

2. Definitions of terms, abbreviations, and references used in this AO conform to those used
in the Utah Administrative Code Rule 307 (UAC R307), and Series 40 of the Code of
Federal Regulations (40 CFR). These definitions take precedence, unless specifically
defined otherwise herein.

3. Nebo Rock Products, Inc. shall install and operate the aggregate processing equipment
according to the terms and conditions of this AO as requested in the Notice of Intent
dated August 13, 1998, and additional information submitted to the executive secretary
dated September 14 and 17, 1998.

4. At least once per calendar year, all employees who operate equipment (operator) that
produces and/or controls emissions to the air shall receive proper training as to their
responsibilities in operating that equipment according to all relevant conditions of this
Commented [COMMENT1]: When modifying an existing
AO, if possible, attach the abstracts written for
previous AO's to the new modified AO as an Appendix. Do
not attach the previous abstracts to the new abstract at the front of the AO.
You can reference
the previous abstracts in the new abstract but do not include
them with it.
Commented [COMMENT2]: Automatic paragraph
numbering has been used from here on. To change from one level to another or create a number or letter do the
following:
go to Tools
Outline
Next Level or
Previous level.See Nando if you have any problems.
Commented [COMMENT3]: Insert the UTM
coordinates here
DAQE-002-99
Page 4

AO. The training for each operator shall be for all equipment that operator operates and
the required training shall only be for pollution control equipment and/or procedures that
have a direct effect on emissions to the ambient air. The equipment shall include all of
the equipment listed below in Condition #5 and any other equipment that affects or
produces air emissions that the operator operates. Within 60 days of every time this AO
is modified or reissued, those employees who operate equipment that produces and/or
controls emissions to the air that is affected by the AO changes shall receive proper
training as to their responsibilities in operating equipment according to all relevant
conditions of this AO. Within 60 days of a new operator being employed or assigned
with the job responsibility to operate any of the equipment that produces and/or controls
emissions to the air, the new operator shall receive proper training as to their
responsibilities in operating the equipment according to all relevant conditions of this
AO. Records of operator training shall be made available to the executive secretary or
executive secretary’s representative upon request and the records shall include the
two-year period prior to the date of the request. This AO shall be made available to all
employees who operate the equipment listed in this AO.

5. The approved installations shall consist of the following equipment or equivalent*:

A. One (1) Roller Cone Crusher (not an NSPS equipment)
Manufacturer: EL-Jay
Model: RRC 45
Serial Number: 177
Manufactured date: 1964
Capacity: 70 tph

B. One (1) Pro Screen
Manufacturer: Fab Tech
Model: Model 1
Serial Number: P173A95
Manufactured date: 1995
Capacity: 200 tph

C. One (1) Conveyor
Manufacturer: Shop made
Model: NA
Serial Number: NA
Manufactured date: 1998
Size: 3 x 35'

D. One (1) 100 kW Diesel Generator**

E. Other Associated Equipment

* Equivalency shall be determined by the executive secretary
**Information will be provided upon purchase

Any future changes or modifications to the equipment and processes approved by this
DAQE-002-99
Page 5

AO that could affect the emissions covered by this AO must be approved in accordance
with R307-401-1, UAC.

6. The executive secretary shall be notified in writing upon start-up of the installation, as an
initial compliance inspection is required. Eighteen months from the date of this AO the
executive secretary shall be notified in writing of the status of construction if construction
is not completed. At that time, the executive secretary shall require documentation of
the continuous construction of the operation and may revoke the AO in accordance with
R307-401-11, UAC. If construction is complete and operation has commenced, a notice
is not required on the status of the construction.

Limitations and Tests Procedures

7. Visible emissions from the following emission points shall not exceed the following
values:

A. All crushers - 15% opacity
B. All screens - 10% opacity
C. All conveyor transfer points - 10% opacity
D. All diesel engines - 20% opacity
E. Conveyor drop points - 20% opacity
F. All other points - 20% opacity

Opacity observations of emissions from stationary sources shall be conducted according
to 40 CFR 60, Appendix A, Method 9. Visible emissions from mobile sources and
intermittent sources shall use procedures similar to Method 9, but the requirement for
observations to be made at 15-second intervals over a six-minute period shall not apply.
Any time-interval with no visible emissions shall not be included.

8. The following production limits shall not be exceeded without prior approval in
accordance with R307-401, UAC:

A. 225,000 tons per rolling 12-month period
B. 1120 hours per rolling 12-month period

Compliance with the annual limitations shall be determined on a rolling 12-month total.
The owner/operator shall calculate a new 12-month total by the twentieth 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. Records of production, including rolling
12-month totals, shall be made available to the executive secretary or executive
secretary’s representative upon request and the records shall include the two-year period
prior to the date of the request. Production shall be determined by operator records.
The records of consumption shall be kept on a daily basis. Hours of operation shall be
determined by supervisor monitoring and maintaining of an operations log.
Commented [COMMENT4]:
It is STRONGLY recommended that ALL
engineers use both a mass emission limit (e.g.,
lb/hr) AND a concentration limit (e.g., ppmv)
for the same source! The reason for this is
that either can be manipulated during testing
to pass but not both at the same time. There
will be more and more need for this as the new
Compliance Monitoring regs affect us!
DAQE-002-99
Page 6

Roads and Fugitive Dust

9. All unpaved roads and other unpaved operational areas that are used by mobile
equipment shall be water sprayed and/or chemically treated to control fugitive dust. The
application of water or chemical treatment shall be used. Treatment shall be of sufficient
frequency and quantity to maintain the surface material in a damp/moist condition or
unless it is below freezing. The opacity shall not exceed 20% during all times the areas
are in use. If chemical treatment is to be used, the plan must be approved by the
executive secretary. Records of water and/or chemical treatment shall be kept for all
periods when the plant is in operation. The records shall include the following items:

A. Date
B. Number of treatments made, dilution ratio, and quantity
C. Rainfall received, if any, and approximate amount
D. Time of day treatments were made

Records of treatment shall be made available to the executive secretary or executive
secretary’s representative upon request and the records shall include the two-year period
prior to the date of the request.

10. The haul road limitations shall be:

A. 500 ft in length
B. 10 miles per hour (posted)

These limitations shall not be exceeded without prior approval in accordance with
R307-401, UAC.

11. Control of disturbed or stripped areas is required at all times (24 hours per day) for the
duration of the project/operation until the area is reclaimed. Records of treatment and/or
reclamation shall be kept for all periods when the plant is in operation. Records of
treatment and/or reclamation shall be made available to the executive secretary or
executive secretary’s representative upon request and the records shall include the
two-year period prior to the date of the request.

12. Visible fugitive dust emissions from haul-road traffic and mobile equipment in
operational areas shall not exceed 20% opacity. Visible emissions determinations for
traffic sources 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. Six points, distributed along the length of the haul road or in the operational
area, shall be chosen by the executive secretary or the executive secretary’s
representative. An opacity reading shall be made at each point when a vehicle passes the
selected points. Opacity readings shall be made ½ vehicle length or greater behind the
vehicle and at approximately ½ the height of the vehicle or greater. The accumulated six
readings shall be averaged for the compliance value.

13. Water sprays or chemical dust suppression sprays shall be installed at the following
points to control fugitive emissions:
DAQE-002-99
Page 7

A. All crushers
B. All screens
C. All conveyor transfer points

The sprays shall operate whenever dry conditions warrant or as determined necessary by
the executive secretary.

14. The moisture content of the material shall be maintained at a minimum of 4.0% by
weight. The moisture content shall be tested if directed by the executive secretary using
the appropriate American Society of Testing and Methods (ASTM) method.

15. The storage piles shall be watered to minimize generation of fugitive dusts, as dry
conditions warrant or as determined necessary by the executive secretary. Records of
water treatment shall be kept for all periods when the plant is in operation. Records of
water treatment shall be made available to the executive secretary or executive
secretary’s representative upon request and the records shall include the two-year period
prior to the date of the request.

Fuels

16. The owner/operator shall use only #2 fuel oil as fuel. If any other fuel is to be used, an
AO shall be required in accordance with R307-401, UAC.

17. The sulfur content of any fuel oil or diesel burned shall not exceed 0.5 percent by weight.
Sulfur content shall be decided by ASTM Method D-4294-89, or approved equivalent.
The sulfur content shall be tested if directed by the executive secretary.

Federal Limitations and Requirements

18. In addition to the requirements of this AO, all applicable provisions of 40 CFR 60, New
Source Performance Standards (NSPS)1 Subparts A and OOO, 40 CFR 60.1 to 60.18 and
40 CFR 60.670 to 60.676 (Standards of Performance for Nonmetallic Mineral Processing
Plants) apply to this installation. A copy of the latest 40 CFR 60 Subparts A (section
60.8) and OOO, dated July 1, 1993, is attached to this document as Appendix A.
However, to be in compliance, this facility must operate in accordance with the most
current version of 40 CFR 60 applicable to this source.

19. For sources that are subject to NSPS, opacity standards shall be determined by
conducting observations in accordance with 40 CFR 60.11(b) and 40 CFR 60, Appendix
A, Method 9. When determining compliance with the fugitive emissions standard for
any affected facility described under Sec. 60.672(b) of this Subpart, the duration of the
Method 9 observations may be reduced from 3 hours (thirty 6-minute averages) to 1 hour
(ten 6-minute averages) only if the following conditions apply:

1 NSPS = New Source Performance Standards.
Commented [COMMENT5]: Moisture content of 4% is
good for bank run and equivalent materials. Crushed
and screened material such as screened ¾" to "
cannot hold the water as there is not enough surface
area to hold the water. Be sure the percent moisture
fits the material.
Commented [COMMENT6]: Be careful of this one.
Some UDOT contracts may call for a specified silt
content of the asphalt mix.
Commented [COMMENT7]: If the source uses a specific grade of diesel (0.05% sulfur etc.) in there emission calculations then specify that sulfur content in this condition.
DAQE-002-99
Page 8

(i) There are no individual readings greater than 10 percent opacity; and
(ii) There are no more than 3 readings of 10 percent for the 1-hour period.

If the above conditions do not apply, the minimum total time of observations shall be 3
hours (30 6-minute averages) for the performance test or other set of observations
(meaning those fugitive-type emission sources subject only to an opacity
standard). It is the responsibility of the owner/operator of the source to supply these
observations to the executive secretary. A currently certified observer must be used for
these observations. Emission points that are subject to the initial observations are:

A. All screens
B. All conveyor transfer points

20. This source is a NSPS, Title V source needing an Operating Permit. It is required to pay
an annual emission fee upon start-up [or if an existing facility, upon issuance of this AO.
The fee will be based on calculated annual emissions listed at the end of this AO. This
fee is valid until inventory data for one year are available for the source. The owner or
operator of this source will be billed upon start-up for all emissions that are considered
"chargeable" as of that date.

Records & Miscellaneous

21. All installations and facilities authorized by this AO shall be adequately and properly
maintained. All pollution control equipment approved by this approval order shall be
installed, maintained, and operated according to standard operating practices that will
ensure that the air quality limits set forth in this AO will be met. Instructions from the
vendor or established maintenance practices that maximize pollution control shall be
used. All maintenance performed on equipment authorized by this AO shall be
recorded, and the records shall be maintained for a period of two years. All necessary
equipment control and operating devices, such as pressure gauges, amp meters, volt
meters, flow-rate indicators, temperature gauges, CEMS, etc., shall be installed and
operated properly and easily accessible to compliance inspectors. A copy of all the
manufacturers' and company’s own subsequent operating instructions for pollution
control equipment and pollution emitting equipment shall be kept on site. These
instructions shall be available to all employees who operate the equipment and shall be
made available to compliance inspectors upon their request. Maintenance records shall
be made available to the executive secretary or executive secretary’s representative upon
request, and the records shall include the two-year period prior to the date of the request.

22. The owner/operator shall comply with R307-155, UAC. This rule addresses emission
inventory reporting requirements. Each owner or operator of a stationary source subject
to this rule shall maintain for a period of four years from the due date of each emission
statement, a copy of the emission statement submitted to the Division of Air Quality and
records indicating how the information submitted in the emission statement was
determined, including any calculations, data, measurements, and estimates used. These
records shall be made available to the executive secretary or executive secretary’s
representative upon request and the records shall include the two-year period prior to the
date of the request.
Commented [COMMENT8]: The above language should be changed to reflect the actual conditions.
Provide the actual size of the sections and the number
of gallons and/or volume.
DAQE-002-99
Page 9

The full text of UAC R307-155 Emission Inventories is included as Appendix B.
However, to be in compliance, this facility must operate in accordance with the most
current version of R307-155 or the applicable section(s), if renumbered.

The following sources need to have emission inventories:
R307-155-1 Criteria Pollutant Inventory.

R307-155-1. Criteria Pollutant Inventory.
(a) Report Every Third Year. The owner or operator of each of the following
sources is required to submit a report of actual emissions every third year. The
first report shall be due in 2000 for calendar year 1999 for:
(i) any Part 70 source located in Davis, Salt Lake, Utah or Weber Counties;
(ii) any Part 70 temporary source;
(iii) any Part 70 source located outside Davis, Salt Lake, Utah or Weber
Counties with 25 tons per year or more of combined allowable emissions
of PM10, sulfur dioxide, oxides of nitrogen, volatile organic compounds
or carbon monoxide; or
(iv) any stationary source:
(I) located in Davis, Salt Lake, Utah or Weber County with
allowable emissions of PM10, sulfur oxides, or oxides of
nitrogen of 25 tons per year or more;
(II) located in Davis or Salt Lake County with allowable emissions
of volatile organic compounds of 10 tons per year or more;
(III) located in Davis, Salt Lake, or Utah County with allowable
emissions of carbon monoxide of 100 tons per year or more;
(IV) that actually emits 100 tons per year or more of PM10, sulfur
oxides, volatile organic compounds, carbon monoxide or oxides
of nitrogen; or
(V) that actually emits 5 tons per year or more of lead.
(b) Report Every Sixth Year. Any Part 70 source not included in (a) above shall
submit an emissions inventory every sixth year. The inventory for calendar year
1996 suffices as the first inventory.
(c) Additional Reports of Actual Emissions Required Under Specified
Circumstances. This subsection is applicable to sources identified in (a)(i)
through (iv) above.
(i) A source that initially achieves compliance at any time with any
requirement of an applicable state implementation plan shall submit an
inventory for the calendar year in which compliance is achieved.
(ii) A source specified in (a)(iv)(I), (II), (III), or (V) above and whose actual
emissions of any of the individual pollutants specified in(a)(iv)(I), (II),
(III), or (V) above increase or decrease by five percent or more from the
most recently submitted inventory information shall submit an inventory
for the calendar year in which the increase or decrease occurred.
(iii) A source with actual or allowable emissions of 100 or more tons per year
of carbon monoxide, PM10, sulfur oxides, volatile organic compounds,
or oxides of nitrogen, and whose actual emissions of any of these
pollutants increase or decrease by five percent or more from the most
DAQE-002-99
Page 10

recently submitted inventory shall submit an inventory for the calendar
year in which the increase or decrease occurred.
(iv) A source operating temporarily in Davis, Salt Lake, Utah or Weber
County shall submit an inventory for the calendar year in which the
source operated in those counties.
(v) A source that ceases operations shall submit a report of actual emissions
for the partial year and a report for the previous calendar year.
(vi) A new or modified source that receives approval to construct or begins
operating shall submit a report for the initial partial year of operation and
a report for the subsequent calendar year.
(d) In addition to the required inventories, any source may choose to submit an
inventory for any calendar year. The executive secretary may require at any
time a full or partial year inventory on reasonable notice to affected sources.
(e) Due Date. Emission inventories shall be submitted on or before April 15 of each
calendar year following any calendar year in which an inventory is required
under R307-155-1 or 3.
(f) Reports. Emission inventory reports shall include the rate and period of
emission, excess or breakdown emissions, specific plant source of air pollution,
composition of air contaminant, type and efficiency of air pollution control
equipment and other information necessary to quantify operation and pollution
emission, and to evaluate pollution control.

23. The owner/operator shall comply with R307-107, UAC. This rule addresses
unavoidable breakdown reporting requirements. Any breakdown lasting longer than two
hours shall be reported to the executive secretary within three hours of the breakdown if
reasonable, but in no case longer than 18 hours after the beginning of the breakdown.
During times other than normal office hours, breakdowns for any period longer than two
hours shall be initially reported to the Environmental Health Emergency Response
Coordinator. Within seven calendar days of the beginning of any breakdown lasting
longer than two hours, a written report shall be submitted to the executive secretary. The
owner/operator shall calculate/estimate the excess emissions (amount above AO limits)
whenever a breakdown occurs. The total of excess emissions per calendar year shall be
reported to the executive secretary as directed by the executive secretary. The owner or
operator of an installation suffering an unavoidable breakdown shall assure that emission
limitations and visible emission limitations are exceeded for only as short a period of
time as reasonable. The owner or operator shall take all reasonable measures which may
include but are not limited to the immediate curtailment of production, operations, or
activities at all installations of the source if necessary to limit the total aggregate
emissions from the source to no greater than the aggregate allowable emissions averaged
over the periods provided in the source's approval orders or R307.

All records referenced in this AO or in applicable NSPS, which are required to be kept by the
owner/operator, shall be made available to the executive secretary or executive secretary’s representative
upon request, and the records shall include the two-year period prior to the date of the request. All
records shall be kept for a period of two years. A summary of those records that are required as part of
this AO is included herein. This summary shall not be considered an additional requirement, but is
included for informational purposes only. The condition that requires that these records be kept as part
of the compliance with this AO is listed following the individual record. Examples of records to be kept
Commented [COMMENT9]: This condition applies
only in nonattainment areas. Use the SIP
DAQE-002-99
Page 11

at this source shall include the following as applicable:
Operator Training (Condition number 4)
Production rate (Condition number 8)
Maintenance records (Condition number 21)
Emission inventory (Condition number 22)
Upset, breakdown episodes (Condition number 23)
Hours of operation (Condition number 8)
Fugitive emission control (Condition numbers 9, 11&15)

The list above may not be a complete list of all records that are required to be kept by Nebo Rock
Products. For a complete list of required records check all AO conditions, and all applicable Federal
regulations such as NSPS that apply to this source.

Any future modifications to the equipment approved by this order must also be approved in accordance
with R307-401-1, UAC.

The executive secretary shall be notified in writing if the company is sold or changes its name. The
notification shall be submitted within 30 days of such action.

This AO in no way releases the owner or operator from any liability for compliance with all other
applicable federal, state, and local regulations including UAC R307.

Reorganization or change of rules of the Utah Air Quality Board may result in the Utah Administrative
Code (UAC) numbering being changed for rules cited in this AO. There will be a document available
that will cross reference old numbering with the new numbering. A change in numbering does not
eliminate the requirement to comply with the referenced rule.

R307-12 is the rule currently in force for Fugitive Emissions & Fugitive Dust. A proposal to revise it is
under consideration by the Air Quality Board. When the revision is complete, the rules for fugitive
emissions and fugitive dust may be designated as R307-205 and R307-309.

Annual emissions for this source (the entire plant) are currently calculated at the following values:

Pollutant Tons/yr

A. PM10 ...................................................... 2.52
B. SO2 ........................................................ 0.58
C. NOx ........................................................ 6.96
D. CO ......................................................... 1.94
E. VOC ...................................................... 0.73
F. Aldehydes .............................................. 0.09

The annual emission estimations above are for the purpose of determining the applicability of Prevention
of Significant Deterioration, nonattainment area, Maintenance area, and Title V source requirements of
the UAC R307. They are not to be used for purposes of determining compliance.

In accordance with the requirements of Title V of the 1990 Clean Air Act, actual emissions of regulated
pollutants maybe subject to operating permit fee except for the following:
DAQE-002-99
Page 12

A. CO
B. Any pollutant that is a regulated air pollutant solely because it is a Class I or II substance
subject to a standard promulgated or established by Title VI of the Act, Stratospheric Ozone
Protection
C. Any pollutant that is a regulated air pollutant solely because it is subject to a standard or
regulation under Section 112(r) of the Act, Prevention of Accidental Releases
D. Tail pipe emissions.

Regulated air pollutant in R307-415 means any of the following:
(1) Nitrogen oxides or any volatile organic compound;
(2) Any pollutant for which a national ambient air quality standard has been promulgated;
(3) Any pollutant that is subject to any standard promulgated under Section 111 of the Act,
Standards of Performance for New Stationary Sources;
(4) Any Class I or II substance subject to a standard promulgated under or established by Title VI
of the Act, Stratospheric Ozone Protection;
(5) Any pollutant subject to a standard promulgated under Section 112, Hazardous Air
Pollutants, or other requirements established under Section 112 of the Act, including Sections
112(g), (j), and (r) of the Act, including any of the following:
(i) Any pollutant subject to requirements under Section 112(j) of the Act, Equivalent
Emission Limitation by Permit. If the Administrator fails to promulgate a standard by
the date established pursuant to Section 112(e) of the Act, any pollutant for which a
subject source would be major shall be considered to be regulated on the date, 18 months
after the applicable date established pursuant to Section 112(e) of the Act;
(ii) Any pollutant for which the requirements of Section 112(g)(2) of the Act (Construction,
Reconstruction and Modification) have been met, but only with respect to the individual
source subject to Section 112(g)(2) requirement.

Emissions of the following pollutants from all sources, including pre-November 29, 1969 sources, may be
subject to the operating permit fee. Both the fees rate and the class of pollutants are subject to change by
State, the federal agencies, or both. If the actual emissions are not known, then the operating permit fee
will be based on the following amounts:

Pollutant Tons/yr

A. PM10 2.36
B. SO2 0.40
C. NOx 6.20
D. VOC 0.50

Approved By:

Ursula K. Trueman, Executive Secretary
Utah Air Quality Board
DAQE-002-99
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Appendix A

Nebo Rock Products, Inc.

40 CFR SUBPART A SECTION 60.8

§ 60.8 Performance tests.

(a) Within 60 days after achieving the maximum production rate at which the affected
facility will be operated, but not later than 180 days after initial startup of such
facility and at such other times as may be required by the Administrator under
section 114 of the Act, the owner or operator of such facility shall conduct
performance test(s) and furnish the Administrator a written report of the results of
such performance test(s).

(b) Performance tests shall be conducted and data reduced in accordance with the test
methods and procedures contained in each applicable subpart unless the
Administrator (1) specifies or approves, in specific cases, the use of a reference
method with minor changes in methodology, (2) approves the use of an equivalent
method, (3) approves the use of an alternative method the results of which he has
determined to be adequate for indicating whether a specific source is in compliance,
(4) waives the requirement for performance tests because the owner or operator of
a source has demonstrated by other means to the Administrator's satisfaction that
the affected facility is in compliance with the standard, or (5) approves shorter
sampling times and smaller sample volumes when necessitated by process variables
or other factors. Nothing in this paragraph shall be construed to abrogate the
Administrator's authority to require testing under section 114 of the Act.

(c) Performance tests shall be conducted under such conditions as the Administrator
shall specify to the plant operator based on representative performance of the
affected facility. The owner or operator shall make available to the Administrator
such records as may be necessary to determine the conditions of the performance
tests. Operations during periods of startup, shutdown, and malfunction shall not
DAQE-002-99
Page 14

constitute representative conditions for the purpose of a performance test nor shall
emissions in excess of the level of the applicable emission limit during periods of
startup, shutdown, and malfunction be considered a violation of the applicable
emission limit unless otherwise specified in the applicable standard.

(d) The owner or operator of an affected facility shall provide the Administrator at
least 30 days prior notice of any performance test, except as specified under other
subparts, to afford the Administrator the opportunity to have an observer present.

(e) The owner or operator of an affected facility shall provide, or cause to be provided,
performance testing facilities as follows:

(1) Sampling ports adequate for test methods applicable to such facility. This
includes (I) constructing the air pollution control system such that volumetric
flow rates and pollutant emission rates can be accurately determined by
applicable test methods and procedures and (ii) providing a stack or duct
free of cyclonic flow during performance tests, as demonstrated by applicable
test methods and procedures.
(2) Safe sampling platform(s).
(3) Safe access to sampling platform(s).
(4) Utilities for sampling and testing equipment.

(f) Unless otherwise specified in the applicable subpart, each performance test shall
consist of three separate runs using the applicable test method. Each run shall be
conducted for the time and under the conditions specified in the applicable
standard. For the purpose of determining compliance with an applicable standard,
the arithmetic means of results of the three runs shall apply. In the event that a
sample is accidentally lost or conditions occur in which one of the three runs must
be discontinued because of forced shutdown, failure of an irreplaceable portion of
the sample train, extreme meteorological conditions, or other circumstances, beyond
the owner or operator's control, compliance may, upon the Administrator's
approval, be determined using the arithmetic mean of the results of the two other
runs.

DAQE-002-99
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[36 FR 24877, Dec. 23, 1971, as amended at 39 FR 9314, Mar.
8, 1974; 42 FR 57126, Nov. 1, 1977; 44 FR 33612, June 11, 1979;
54 FR 6662, Feb. 14, 1989; 54 FR 21344, May 17, 1989]

40 CFR 60 OOO (sections 60.670 - 60676)

Subpart OOO - Standards of Performance for Nonmetallic Mineral Processing Plants

Source: 51 FR 31337, Aug. 1, 1985, unless otherwise noted. Amendments filed 6-6-97, FR Doc. 97-14856

§ 60.670 Applicability and designation of affected facility.
(a)(1) Except as provided in paragraphs (a)(2), (b), (c) and (d) of this section, the provisions of this subpart are
applicable to the following affected facilities in fixed or portable nonmetallic mineral processing plants: each
crusher, grinding mill, screening operation, bucket elevator, belt conveyor, bagging operation, storage bin, enclosed
truck or railcar loading station. Also, crushers and grinding mills at hot mix asphalt facilities that reduce the size of
nonmetallic minerals embedded in recycled asphalt pavement and subsequent affected facilities up to, but not
including, the first storage silo or bin are subject to the provisions of this subpart.
(2) The provisions of this subpart do not apply to the following operations: All facilities located in
underground mines; and stand-alone screening operations at plants without crushers or grinding mills.
(b) An affected facility that is subject to the provisions of subpart F or I or that follows in the plant process any
facility
subject to the provisions of subparts F or I of this part is not subject to the provisions of this subpart.
(c) Facilities at the following plants are not subject to the provisions of this subpart:
(1) Fixed sand and gravel plants and crushed stone plants with capacities, as defined in Sec. 60.671, of 23
megagrams per hour (25 tons per hour) or less;
(2) Portable sand and gravel plants and crushed stone plants with capacities, as defined in Sec. 60.671, of 136
megagrams per hour (150 tons per hour) or less; and
(3) Common clay plants and pumice plants with capacities, as defined in Sec. 60.671, of 9 megagrams per hour
(10 tons per hour) or less.
(d)(1) When an existing facility is replaced by a piece of equipment of equal or smaller size, as defined in Sec.
60.671,
having the same function as the existing facility, the new facility is exempt from the provisions of Secs. 60.672,
60.674, and 60.675 except as provided for in paragraph (d)(3) of this section.
(2) An owner or operator complying with paragraph (d)(1) of this section shall submit the information required
in Sec. 60.676(a).
(3) An owner or operator replacing all existing facilities in a production line with new facilities does not qualify for the exemption described in paragraph (d)(1) of this section and must comply with the provisions of Secs. 60.672,
60.674 and 60.675.
(e) An affected facility under paragraph (a) of this section that commences construction, reconstruction, or
modification
after August 31, 1983 is subject to the requirements of this part.
(f) Table 1 of this subpart specifies the provisions of subpart A of this Part 60 that apply and those that do not
apply to owners and operators of affected facilities subject to this subpart.

Table 1.--Applicability of Subpart A To Subpart OOO
----------------------------------------------------------------------------------------------------------------
DAQE-002-99
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Subpart A reference Applies to Subpart OOO Comment
----------------------------------------------------------------------------------------------------------------
60.1, Applicability ....... ............. ..............Yes ....... ............. .............
60.2, Definitions .......... ............. ..............Yes ....... ............. .............
60.3, Units and abbreviations .... ..............Yes ....... ............. .............
60.4, Address:
(a) ......... ............. ............. ..............Yes ....... ............. .............
(b) ......... ............. ............. ..............Yes ....... ............. .............
60.5, Determination of construction
or modification . ............. ..............Yes ....... ............. .............
60.6, Review of plans .. ............. ..............Yes ....... ............. .............
60.7, Notification and
recordkeeping ..... ............. ..............Yes ....... ............. ............. Except in (a)(2) of anticipated date of
initial ............. ............. ............................ ............. ............. startup is not required (60.676(h)).
60.8, Performance tests ............. ..............Yes ....... ............. ............. Except in (d), after 30 days notice for an
initially scheduled performance test, any rescheduled performance test requires 7 days notice, not 30 days (Sec. 60.675(g)).
60.9, Availability of information ............................ Yes ....... ............. ..............
60.10, State authority .... ............. ..............Yes ....... ............. .............
60.11, Compliance with standards
and maintenance requirements ........Yes ....... ............. ............. Except in (b) under certain conditions (Secs.
60.675 (c)(3) and (c)(4)), Method 9 observation may be reduced from 3 hours to 1hour. Some affected facilities exempted from Method 9 tests (Sec. 60.675(h)).
60.12, Circumvention .... ............. ..............Yes ....... ............. .............
60.13, Monitoring requirements .. ..............Yes ....... ............. .............
60.14, Modification ....... ............. ..............Yes ....... ............. ............. 60.15, Reconstruction .... ............. ..............Yes ....... ............. .............
60.16, Priority list .......... ............. ..............Yes ....... ............. .............
60.17, Incorporations by reference .............Yes ....... ............. .............
60.18, General control device...... ..............No ......... ............. ............. Flares will not be used to comply with the emission limits.
60.19, General notification and
reporting requirements ..... ..............Yes ....... ............. .............

§ 60.671 Definitions.
All terms used in this subpart, but not specifically defined in this section, shall have the meaning given them in the
Act
and in subpart A of this part.
Bagging operation means the mechanical process by which bags are filled with nonmetallic minerals.
Belt conveyor means a conveying device that transports material from one location to another by means of an
endless belt that is carried on a series of idlers and routed around a pulley at each end.
Bucket elevator means a conveying device of nonmetallic minerals consisting of a head and foot assembly which
supports and drives an endless single or double strand chain or belt to which buckets are attached.
Building means any frame structure with a roof.
Capacity means the cumulative rated capacity of all initial crushers that are part of the plant.
Capture system means the equipment (including enclosures, hoods, ducts, fans, dampers, etc.) used to capture
and transport particulate matter generated by one or more process operations to a control device.
Control device means the air pollution control equipment used to reduce particulate matter emissions released to
the atmosphere from one or more process operations at a nonmetallic mineral processing plant.
Conveying system means a device for transporting materials from one piece of equipment or location to another
location within a plant. Conveying systems include but are not limited to the following: Feeders, belt conveyors,
bucket elevators and pneumatic systems.
Crusher means a machine used to crush any nonmetallic minerals, and includes, but is not limited to, the
following types: jaw, gyratory, cone, roll, rod mill, hammermill, and impactor.
Enclosed truck or railcar loading station means that portion of a nonmetallic mineral processing plant where
nonmetallic minerals are loaded by an enclosed conveying system into enclosed trucks or railcars.
DAQE-002-99
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Fixed plant means any nonmetallic mineral processing plant at which the processing equipment specified in Sec.
60.670(a) is attached by a cable, chain, turnbuckle, bolt or other means (except electrical connections) to any anchor,
slab, or structure including bedrock.
Fugitive emission means particulate matter that is not collected by a capture system and is released to the
atmosphere at the point of generation.
Grinding mill means a machine used for the wet or dry fine crushing of any nonmetallic mineral. Grinding mills
include, but are not limited to, the following types: hammer, roller, rod, pebble and ball, and fluid energy. The
grinding mill includes the air conveying system, air separator, or air classifier, where such systems are used.
Initial crusher means any crusher into which nonmetallic minerals can be fed without prior crushing in the plant.
Nonmetallic mineral means any of the following minerals or any mixture of which the majority is any of the
following minerals:
(a) Crushed and Broken Stone, including Limestone, Dolomite, Granite, Traprock, Sandstone, Quartz, Quartzite,
Marl, Marble, Slate, Shale, Oil Shale, and Shell.
(b) Sand and Gravel.
(c) Clay including Kaolin, Fireclay, Bentonite, Fuller's Earth, Ball Clay, and Common Clay.
(d) Rock Salt.
(e) Gypsum.
(f) Sodium Compounds, including Sodium Carbonate, Sodium Chloride, and Sodium Sulfate.
(g) Pumice.
(h) Gilsonite.
(i) Talc and Pyrophyllite.
(j) Boron, including Borax, Kernite, and Colemanite.
(k) Barite.
(l) Fluorospar. (m) Feldspar.
(n) Diatomite.
(o) Perlite.
(p) Vermiculite.
(q) Mica.
(r) Kyanite, including Andalusite, Sillimanite, Topaz, and Dumortierite.
Nonmetallic mineral processing plant means any combination of equipment that is used to crush or grind any
nonmetallic mineral wherever located, including lime plants, power plants, steel mills, asphalt concrete plants,
portland cement plants, or any other facility processing nonmetallic minerals except as provided in Sec. 60.670 (b)
and (c).
Portable plant means any nonmetallic mineral processing plant that is mounted on any chassis or skids and may
be moved by the application of a lifting or pulling force. In addition, there shall be no cable, chain, turnbuckle, bolt
or other means (except electrical connections) by which any piece of equipment is attached or clamped to any
anchor, slab, or structure, including bedrock that must be removed prior to the application of a lifting or pulling
force for the purpose of transporting the unit.
Production line means all affected facilities (crushers, grinding mills, screening operations, bucket elevators, belt
conveyors, bagging operations, storage bins, and enclosed truck and railcar loading stations) which are directly
connected or are connected together by a conveying system.
Screening operation means a device for separating material according to size by passing undersize material
through one or more mesh surfaces (screens) in series, and retaining oversize material on the mesh surfaces
(screens).
Size means the rated capacity in tons per hour of a crusher, grinding mill, bucket elevator, bagging operation, or
enclosed truck or railcar loading station; the total surface area of the top screen of a screening operation; the width
of a conveyor belt; and the rated capacity in tons of a storage bin.
Stack emission means the particulate matter that is released to the atmosphere from a capture system.
Storage bin means a facility for storage (including surge bins) or nonmetallic minerals prior to further processing
or loading.
Transfer point means a point in a conveying operation where the nonmetallic mineral is transferred to or from a
belt conveyor except where the nonmetallic mineral is being transferred to a stockpile.
DAQE-002-99
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Truck dumping means the unloading of nonmetallic minerals from movable vehicles designed to transport
nonmetallic minerals from one location to another. Movable vehicles include but are not limited to: trucks, front end
loaders, skip hoists, and railcars.
Vent means an opening through which there is mechanically induced air flow for the purpose of exhausting from a
building air carrying particulate matter emissions from one or more affected facilities.
Wet mining operation means a mining or dredging operation designed and operated to extract any nonmetallic
mineral regulated under this subpart from deposits existing at or below the water table, where the nonmetallic
mineral is saturated with water.
Wet screening operation means a screening operation at a nonmetallic mineral processing plant which removes
unwanted material or which separates marketable fines from the product by a washing process which is designed
and operated at all times such that the product is saturated with water.

§ 60.672 Standard for particulate matter.
(a) On and after the date on which the performance test required to be conducted by Sec. 60.8 is completed, no
owner or operator subject to the provisions of this subpart shall cause to be discharged into the atmosphere from any
transfer point on belt conveyors or from any other affected facility any stack emissions which:
(1) Contain particulate matter in excess of 0.05 g/dscm; and
(2) Exhibit greater than 7 percent opacity, unless the stack emissions are discharged from an affected facility
using a wet scrubbing control device. Facilities using a wet scrubber must comply with the reporting provisions of
Sec. 60.676 (c), (d), and (e).
(b) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be
operated, but not later than 180 days after initial startup as required under Sec. 60.11 of this part, no owner or
operator subject to the provisions of this subpart shall cause to be discharged into the atmosphere from any transfer
point on belt conveyors or from any other affected facility any fugitive emissions which exhibit greater than 10 percent opacity, except as provided in paragraphs (c), (d) and (e) of this section.
(c) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be
operated, but not later than 180 days after initial startup as required under Sec. 60.11 of this part, no owner or
operator shall cause to be discharged into the atmosphere from any crusher, at which a capture system is not used,
fugitive emissions which exhibit greater than 15 percent opacity.
(d) Truck dumping of nonmetallic minerals into any screening operation, feed hopper, or crusher is exempt from
the requirements of this section.
(e) If any transfer point on a conveyor belt or any other affected facility is enclosed in a building, then each
enclosed
affected facility must comply with the emission limits in paragraphs (a), (b) and (c) of this section, or the building
enclosing the affected facility or facilities must comply with the following emission limits:
(1) No owner or operator shall cause to be discharged into the atmosphere from any building enclosing any
transfer point on a conveyor belt or any other affected facility any visible fugitive emissions except emissions from a
vent as defined in Sec. 60.671.
(2) No owner or operator shall cause to be discharged into the atmosphere from any vent of any building
enclosing any transfer point on a conveyor belt or any other affected facility emissions which exceed the stack
emissions limits in paragraph (a) of this section.
(f) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be
operated, but not later than 180 days after initial startup as required under Sec. 60.11 of this part, no owner or
operator shall cause to be discharged into the atmosphere from any baghouse that controls emissions from only an
individual, enclosed storage bin, stack emissions which exhibit greater than 7 percent opacity.
(g) Owners or operators of multiple storage bins with combined stack emissions shall comply with the emission
limits in paragraph (a)(1) and (a)(2) of this section.
(h) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be
operated, but not later than 180 days after initial startup, no owner or operator shall cause to be discharged into the
atmosphere any visible emissions from:
(1) Wet screening operations and subsequent screening operations, bucket elevators, and belt conveyors that
process saturated material in the production line up to the next crusher, grinding mill or storage bin.
(2) Screening operations, bucket elevators, and belt conveyors in the production line downstream of wet mining
DAQE-002-99
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operations, where such screening operations, bucket elevators, and belt conveyors process saturated materials up to
the first crusher, grinding mill, or storage bin in the production line.

§ 60.673 Reconstruction.
(a) The cost of replacement of ore-contact surfaces on processing equipment shall not be considered in calculating
either the “fixed capital cost of the new components'' or the “fixed capital cost that would be required to construct a
comparable new facility'' under Sec. 60.15. Ore-contact surfaces are crushing surfaces; screen meshes, bars, and
plates; conveyor belts; and elevator buckets.
(b) Under Sec. 60.15, the “fixed capital cost of the new components'' includes the fixed capital cost of all
depreciable components (except components specified in paragraph (a) of this section) which are or will be replaced
pursuant to all continuous programs of component replacement commenced within any 2-year period following
August 31, 1983.

§ 60.674 Monitoring of operations.
The owner or operator of any affected facility subject to the provisions of this subpart which uses a wet scrubber to
control emissions shall install, calibrate, maintain and operate the following monitoring devices:
(a) A device for the continuous measurement of the pressure loss of the gas stream through the scrubber. The
monitoring device must be certified by the manufacturer to be accurate within ±250 pascals ±1 inch water gauge
pressure and must be calibrated on an annual basis in accordance with manufacturer's instructions.
(b) A device for the continuous measurement of the scrubbing liquid flow rate to the wet scrubber. The monitoring
device must be certified by the manufacturer to be accurate within ±5 percent of design scrubbing liquid flow rate
and must be calibrated on an annual basis in accordance with manufacturer's instructions.

§ 60.675 Test methods and procedures. (a) In conducting the performance tests required in Sec. 60.8, the owner or operator shall use as reference methods
and procedures the test methods in appendix A of this part or other methods and procedures as specified in this
section, except as provided in Sec. 60.8(b). Acceptable alternative methods and procedures are given in paragraph
(e) of this section.
(b) The owner or operator shall determine compliance with the particulate matter standards in Sec. 60.272(a) as
follows:
(1) Method 5 or Method 17 shall be used to determine the particulate matter concentration. The sample volume
shall be at least 1.70 dscm (60 dscf). For Method 5, if the gas stream being sampled is at ambient temperature, the
sampling probe and filter may be operated without heaters. If the gas stream is above ambient temperature, the
sampling probe and filter may be operated at a temperature high enough, but no higher than 121 C (250 F), to
prevent water condensation on the filter.
(2) Method 9 and the procedures in Sec.60.11 shall be used to determine opacity.
(c)(1) In determining compliance with the particulate matter standards in Sec. 60.672 (b) and (c), the owner or
operator shall
use Method 9 and the procedures in Sec. 60.11, with the following additions:
(i) The minimum distance between the observer and the emission source shall be 4.57 meters (15 feet).
(ii) The observer shall, when possible, select a position that minimizes interference from other fugitive
emission sources (e.g., road dust). The required observer position relative to the sun (Method 9, Section 2.1) must be
followed.
(iii) For affected facilities using wet dust suppression for particulate matter control, a visible mist is
sometimes generated by the spray. The water mist must not be confused with particulate matter emissions and is not
to be considered a visible emission. When a water mist of this nature is present, the observation of emissions is to be
made at a point in the plume where the mist is no longer visible.
(2) In determining compliance with the opacity of stack emissions from any baghouse that controls emissions
only from an individual enclosed storage bin under Sec. 60.672(f) of this subpart, using Method 9, the duration of
the Method 9 observations shall be 1 hour (ten 6-minute averages).
(3) When determining compliance with the fugitive emissions standard for any affected facility described under
Sec. 60.672(b) of this subpart, the duration of the Method 9 observations may be reduced from 3 hours (thirty
6-minute averages) to 1 hour (ten 6-minute averages) only if the following conditions apply:
DAQE-002-99
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(i) There are no individual readings greater than 10 percent opacity; and
(ii) There are no more than 3 readings of 10 percent for the 1-hour period.
(4) When determining compliance with the fugitive emissions standard for any crusher at which a capture system
is not used as described under Sec. 60.672(c) of this subpart, the duration of the Method 9 observations may be
reduced from 3 hours (thirty 6-minute averages) to 1 hour (ten 6-minute averages) only if the following conditions
apply:
(i) There are no individual readings greater than 15 percent opacity; and
(ii) There are no more than 3 readings of 15 percent for the 1-hour period.
(d) In determining compliance with Sec.60.672(e), the owner or operator shall use Method 22 to determine
fugitive emissions. The performance test shall be conducted while all affected facilities inside the building are
operating. The performance test for each building shall be at least 75 minutes in duration, with each side of the
building and the roof being observed for at least 15 minutes.
(e) The owner or operator may use the following as alternatives to the reference methods and procedures specified
in this section:
(1) For the method and procedure of paragraph (c) of this section, if emissions from two or more facilities
continuously
interfere so that the opacity of fugitive emissions from an individual affected facility cannot be read, either of the
following procedures may be used:
(i) Use for the combined emission stream the highest fugitive opacity standard applicable to any of the individual
affected facilities contributing to the emissions stream.
(ii) Separate the emissions so that the opacity of emissions from each affected facility can be read.
(f) To comply with Sec. 60.676(d), the owner or operator shall record the measurements as required Sec. 60.676(c)
using the monitoring devices in Sec. 60.674 (a) and (b) during each particulate matter run and shall determine the
averages. (g) If, after 30 days notice for an initially scheduled performance test, there is a delay (due to operational
problems, etc.) in conducting any rescheduled performance test required in this section, the owner or operator of an
affected facility shall submit a notice to the Administrator at least 7 days prior to any rescheduled performance test.
(h) Initial Method 9 performance tests under Sec. 60.11 of this part and Sec. 60.675 of this subpart are not required
for:
(1) wet screening operations and subsequent screening operations, bucket elevators, and belt conveyors that
process saturated material in the production line up to, but not including the next crusher, grinding mill or storage
bin.
(2) screening operations, bucket elevators, and belt conveyors in the production line downstream of wet mining
operations, that process saturated materials up to the first crusher, grinding mill, or storage bin in the production
line.

§ 60.676 Reporting and recordkeeping.
(a) Each owner or operator seeking to comply with Sec. 60.670(d) shall submit to the Administrator the following
information about the existing facility being replaced and the replacement piece of equipment.
(1) For a crusher, grinding mill, bucket elevator, bagging operation, or enclosed truck or railcar loading station:
(i) The rated capacity in tons per hour of the existing facility being replaced and
(ii) The rated capacity in tons per hour of the replacement equipment.
(2) For a screening operation:
(i) The total surface area of the top screen of the existing screening operation being replaced and
(ii) The total surface area of the top screen of the replacement screening operation.
(3) For a conveyor belt:
(i) The width of the existing belt being replaced and
(ii) The width of the replacement conveyor belt.
(4) For a storage bin:
(i) The rated capacity in tons of the existing storage bin being replaced and
(ii) The rated capacity in tons of replacement storage bins.
(b) Removed and reserved.
(1) The information described in Sec. 60.676(a).
DAQE-002-99
Page 21

(2) A description of the control device used to reduce particulate matter emissions from the existing facility and a
list of all other pieces of equipment controlled by the same control device; and
(3) The estimated age of the existing facility.
(c) During the initial performance test of a wet scrubber, and daily thereafter, the owner or operator shall record
the
measurements of both the change in pressure of the gas stream across the scrubber and the scrubbing liquid flow
rate.
(d) After the initial performance test of a wet scrubber, the owner or operator shall submit semiannual reports to
the
Administrator of occurrences when the measurements of the scrubber pressure loss (or gain) and liquid flow rate
differ by more than ±30 percent from the averaged determined during the most recent performance test.
(e) The reports required under paragraph (d) shall be postmarked within 30 days following end of the second and
fourth calendar quarters.
(f) The owner or operator of any affected facility shall submit written reports of the results of all performance tests
conducted to demonstrate compliance with the standards set forth in Sec. 60.672 of this subpart, including reports of
opacity observations made using Method 9 to demonstrate compliance with Sec. 60.672 (b), (c), and (f), and reports
of observations using Method 22 to demonstrate compliance with Sec. 60.672(e).
(g) The owner or operator of any screening operation, bucket elevator, or belt conveyor that processes saturated
material and is subject to Sec. 60.672(h) and subsequently processes unsaturated materials, shall submit a report of
this change within 30 days following such change. This screening operation, bucket elevator, or belt conveyor is
then subject to the 10 percent opacity limit in Sec. 60.672(b) and the emission test requirements of Sec. 60.11 and
this subpart. Likewise a screening operation, bucket elevator, or belt conveyor that processes unsaturated material
but subsequently processes saturated material shall submit a report of this change within 30 days following such
change. This screening operation, bucket elevator, or belt conveyor is then subject to the no visible emission limit in Sec. 60.672(h).
(h) The subpart A requirement under Sec. 60.7(a)(2) for notification of the anticipated date of initial startup of an
affected facility shall be waived for owners or operators of affected facilities regulated under this subpart.
(i) A notification of the actual date of initial startup of each affected facility shall be submitted to the
Administrator.
(1) For a combination of affected facilities in a production line that begin actual initial startup on the same day, a
single notification of startup may be submitted by the owner or operator to the Administrator. The notification shall
be postmarked within 15 days after such date and shall include a description of each affected facility, equipment
manufacturer, and serial number of the equipment, if available.
(2) For portable aggregate processing plants, the notification of the actual date of initial startup shall include both
the home office and the current address or location of the portable plant.
(j) The requirements of this section remain in force until and unless the Agency, in delegating enforcement
authority to a State under section 111(c) of the Act, approves reporting requirements or an alternative means of
compliance surveillance adopted by such States. In that event, affected facilities within the State will be relieved of
the obligation to comply with the reporting requirements of this section, provided that they comply with
requirements established by the State.

(Approved by the Office of Management and Budget under control number 2060-0050)

[51 FR 31337, Aug. 1, 1985, as amended at 54 FR 6680, Feb. 14, 1989 and FR Doc. 97-14856 Filed 6-6-97; 8:45
am]
BILLING CODE 6560-50-P
DAQE-002-99
Page 22

Appendix B

Nebo Rock Products, Inc.

R307. Environmental Quality, Air Quality.
R307-155. Emission Inventories. R307-155-1. Criteria Pollutant Inventory.
(1) The requirements of R307-155 replace any annual inventory reporting requirements in approval orders issued
prior to April 1, 1998.
(a) Report Every Third Year. The owner or operator of each of the following sources is required to submit a report of
actual emissions every third year. The first report shall be due in 2000 for calendar year 1999 for:
(i) any Part 70 source located in Davis, Salt Lake, Utah or Weber Counties; (ii) any Part 70 temporary source; (iii) any Part 70 source located outside Davis, Salt Lake, Utah or Weber Counties with 25 tons per year or more of
combined allowable emissions of PM10, sulfur dioxide, oxides of nitrogen, volatile organic compounds or carbon monoxide; or
(iv) any stationary source:
(I) located in Davis, Salt Lake, Utah or Weber County with allowable emissions of PM10, sulfur oxides, or oxides of
nitrogen of 25 tons per year or more;
(II) located in Davis or Salt Lake County with allowable emissions of volatile organic compounds of 10 tons per year or more;
(III) located in Davis, Salt Lake, or Utah County with allowable emissions of carbon monoxide of 100 tons per year or
more;
(IV) that actually emits 100 tons per year or more of PM10, sulfur oxides, volatile organic compounds, carbon
monoxide or oxides of nitrogen; or
(V) that actually emits 5 tons per year or more of lead. (b) Report Every Sixth Year. Any Part 70 source not included in (a) above shall submit an emissions inventory every sixth year. The inventory for calendar year 1996 suffices as the first inventory.
(c) Additional Reports of Actual Emissions Required Under Specified Circumstances. This subsection is applicable
to sources identified in (a)(i) through (iv) above.
(i) A source that initially achieves compliance at any time with any requirement of an applicable state implementation
plan shall submit an inventory for the calendar year in which compliance is achieved.
(ii) A source specified in (a)(iv)(I), (II), (III), or (V) above and whose actual emissions of any of the individual pollutants specified in(a)(iv)(I), (II), (III), or (V) above increase or decrease by five percent or more from the most recently submitted inventory information shall submit an inventory for the calendar year in which the increase or decrease occurred.
(iii) A source with actual or allowable emissions of 100 or more tons per year of carbon monoxide, PM10, sulfur
oxides, volatile organic compounds, or oxides of nitrogen, and whose actual emissions of any of these pollutants increase or
decrease by five percent or more from the most recently submitted inventory shall submit an inventory for the calendar year in
which the increase or decrease occurred.
(iv) A source operating temporarily in Davis, Salt Lake, Utah or Weber County shall submit an inventory for the calendar year in which the source operated in those counties.
(v) A source that ceases operations shall submit a report of actual emissions for the partial year and a report for the
previous calendar year.
(vi) A new or modified source that receives approval to construct or begins operating shall submit a report for the
initial partial year of operation and a report for the subsequent calendar year.
(d) In addition to the required inventories, any source may choose to submit an inventory for any calendar year. The executive secretary may require at any time a full or partial year inventory on reasonable notice to affected sources. (e) Due Date. Emission inventories shall be submitted on or before April 15 of each calendar year following any
calendar year in which an inventory is required under R307-155-1 or 3.
(f) Reports. Emission inventory reports shall include the rate and period of emission, excess or breakdown
emissions, specific plant source of air pollution, composition of air contaminant, type and efficiency of air pollution control
equipment and other information necessary to quantify operation and pollution emission, and to evaluate pollution control.
R307-155-2. Hazardous Air Pollutant Inventory.
The owner or operator of a stationary source, either "major source" or "area source" as defined in the Federal Clean Air
DAQE-002-99
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Act (Title I, Part A, Section 112), which emits one or more hazardous air pollutant shall submit, at the request of the executive
secretary, but not more than once per year, a Hazardous Air Pollutant Inventory. The inventory shall be submitted no later than
July 1 of each year following any calendar year for which the hazardous air pollutant inventory is required. The required
submittal shall be limited to hazardous air pollutants and shall include a report of the rate and period of emission, excess or
breakdown emissions, the specific plant source of the emissions, the composition of the emission, the type and efficiency of air pollution control equipment, and any other information determined necessary by the executive secretary for the issuance of
permits, the verification of compliance, and the determination of the effectiveness of control technology relative to the source's
maximum achievable control technology (MACT).

R307-155-3. Emission Statement Inventory.
(1) Applicability. The owner or operator of a stationary source of either volatile organic compounds or oxides of nitrogen that is located in Salt Lake or Davis Counties or a nonattainment area for ozone and which emits or has the potential to
emit 25 tons or more per year of either volatile organic compounds or oxides of nitrogen is required to submit an emission
statement for the emissions released directly or indirectly into the outdoor atmosphere in the calendar years specified in (2)
below. Such emission statement shall include information concerning both volatile organic compounds and oxides of nitrogen
even if the source's emissions or its potential to emit equaled or exceeded 25 tons per year for only volatile organic compounds or
oxides of nitrogen. Compliance with the emission statement requirements does not relieve any owner or operator of a source
from the responsibility to comply with any other applicable reporting requirements set forth in any federal or state law or in the conditions of approval of any order or certificate in effect.
(2) Timing of Submittals.
(a) An emission statement shall be submitted for calendar year 1999 and every third year thereafter.
(b) A report for the calendar year in which any of the following conditions occurs must be submitted by any source:
(i) whose actual emissions of volatile organic compounds or oxides of nitrogen increase or decrease by five percent or
more from the most recently submitted inventory information;
(ii) that initially achieves compliance at any time with any requirement of an applicable state implementation plan; or (iii) for which the executive secretary requests submittal.
(c) A source that ceases operations shall submit a report for the partial year and a report for the previous calendar
year.
(d) A new or modified source that receives approval to construct or begins operating during the reporting period shall
submit a report for the initial partial year of operation and the subsequent calendar year.
(3) Procedure for submitting an emission statement. Emission statements shall be submitted in accordance with the following provisions:
(a) Emission statements shall be submitted on or before April 15 of each calendar year following any calendar year in
which the source is subject to this rule.
(b) Emission statements shall be submitted to the Division of Air Quality on a form obtainable from the Division of
Air Quality.
(4) Required contents of an emission statement. Any person who submits an emission statement shall include, as an
integral part of the report: (a) Certification, signed by the highest ranking individual with direct knowledge and overall responsibility for the
information contained in the certified documents, that the information provided is true, accurate and complete. Such
certification should be submitted with the understanding that submittal of false, inaccurate or incomplete information is subject to
civil and criminal penalties.
(b) The date of the signature of certification and the telephone number of the certifying individual shall be included.
(c) The following source identification information shall be included: (i) full name of the source;
(ii) parent company name, if applicable;
(iii) physical location of the source (i.e., the street address);
(iv) mailing address of the source;
(v) SIC code(s) of the source;
(vi) UTM coordinates or latitude and longitude of the source; and
(vii) the calendar year of the emissions. (d) The following operating data for each source operation which has the potential to emit volatile organic compounds
or oxides of nitrogen shall be included:
(i) annual and peak ozone season throughput;
(ii) average days of operation per week;
(iii) average hours of operation per day; and
(iv) total hours of operation for the year.
(e) The following information at the process level for oxides of nitrogen (expressed as molecular weight of nitrogen dioxide) and volatile organic compounds shall be included:
DAQE-002-99
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(i) Emissions information, including:
(A) the actual emissions of volatile organic compounds and oxides of nitrogen in tons per year;
(B) the average actual emissions of volatile organic compounds and oxides of nitrogen in pounds per day of operation
during the peak ozone season;
(C) the code for the method used to quantify the actual emissions (from Table 1 included with the filing form in (2)(b) above); and
(D) any emission factor used to determine actual emissions.
(ii) Control apparatus information, including current primary and secondary control apparatus identification codes
(from Table 2 included with the filing form in (2)(b)); and the actual control efficiency achieved by the control apparatus. If the
actual control efficiency is unavailable, the control apparatus design efficiency shall be used.
(iii) Process rate data, including the annual process rate and the average process rate per day of operation during the peak ozone season.
(f) In place of the information required in (4)(d) and (e) above, any source which has the potential to emit less than
one ton per year of either volatile organic compounds or nitrogen oxides but which is subject to this rule shall include:
(i) a description of each source operation and actual emissions of each air contaminant emitted from each source
operation shall be estimated at one ton per year, or
(ii) a description of each source operation; estimated actual emission in tons per year; the code for the method used to
quantify the actual emissions (from Table 1 included with the filing form in (2)(b); and any emission factor used to determine actual emissions.
(g) Emission statements shall include cumulative total fugitive emissions for the stationary source for all fugitive
emissions that cannot be reported in the information pursuant to (4)(d) through (f) above. Such fugitive emissions shall be
expressed in tons per year and in average pounds per day of operation during the peak ozone season.
(h) The method used for quantifying actual emissions for a source operation for use in preparing emission information
required in (4)(e)(i) or (4)(f)(ii) above shall be the method which is reasonably available and which best estimates the actual
emissions from the source operation, unless an operating permit pursuant to Title V of the federal Clean Air Act has been issued for the stationary source. In such case, the method used shall be the method specified in the operating permit.
(5) Recordkeeping requirements.
(a) Each owner or operator of a stationary source subject to this rule shall maintain for a period of four years from the
due date of each emission statement a copy of the emission statement submitted to the Division of Air Quality and records
indicating how the information submitted in the emission statement was determined, including any calculations, data,
measurements, and estimates used. (b) Upon the request of the executive secretary, the owner or operator of the stationary source shall make these
records available at the stationary source for inspection by any representative of the Division of Air Quality during normal
business hours.

DAQC-1468-19
DAQ-2019-020912
MEMORANDUM
Site ID 12158 (B1)
TO: FILE — Sunroc Corporation- Mona Aggregate Processing Plant
THROUGH: Rik Ombach, Minor Source Compliance Section Manager
FROM: Paul Bushman, Environmental Scientist
DATE: November 7, 2019
SUBJECT: Rffil Compliance Evaluation, Minor, Juab County
INSPECTION DATE:
SOURCE LOCATION:
SOURCE CONTACTS:
OPERATING STATUS:
PROCESS DESCRIPTION:
APPLICABLE REGULATIONS:
EMISSION INVENTORY:
October 31, 2019
1040 East North Canyon Road
Mona, UT 84645
Take exit 233 (Mona) off of I-15 and head west to Old Highway
91, Main Street. Turn right and head north to North Canyon
Road, 2300 North, by the Kilgore sign. The pit is on the left side
of the road before the Kilgore/Westroc's batch plant.
Sam Bernard, Environmental contact: 801-802-6954
Not Operating. Contacted Sam Bernard who stated that the site
has been inactive for several years. Mr. Bernard stated that the
pit will remain inactive until a road or construction project in the
area becomes available.
Aggregate plant.
Approval Order (AO) DAQE-AN0121580005-09, dated October
7, 2009
NSPS (Part 60), A: General Provisions
NSPS (Part 60), 000: Standards of Performance for
Nonmetallic Mineral Processing Plants
The emissions listed below are an estimate of the total potential emissions from Sunroc Corporation-
Mona Aggregate Processing Plant on the Approval Order (AO) DAQE-AN0121580005-09, dated
October 7, 2009. The following information was supplied for supplemental purposes only.
Estimated Criteria Pollutant Potential Emissions
Carbon Monoxide
Nitrogen Oxides
Particulate Matter - PM10
Sulfur Dioxide
Volatile Organic Compounds
1.94 tons/yr
6.96 tons/yr
2.52 tons/yr
0.58 tons/yr
0.73 tons/yr
1