DAQ-2025-001833

Small Source Registration

DAQE-EN162620001-25

{{$d1 }}

Russ Witt
Witt Excavating, Inc.
400 West Airport Road
Heber City, UT 84032
[e-mail]

Dear Mr. Witt,

Re: Request for Evaluation of Compliance with Rule R307-401-9, UAC: Small Source Exemption
Project Fee Code: N162620001

On March 4, 2025, the Division of Air Quality (DAQ) received your request for a small source exemption
for the Witt Excavating, Inc. - Heber City Aggregate Processing Facility. The source is located at 400 West Airport Road, Heber City, Wasatch County. DAQ has determined the small source exemption
applies to the source, as long as the equipment and associated processes operate as specified in the
registration request.

The small source exemption does not exempt a source from complying with other applicable federal,
state, and local regulations and the current Utah Administrative Code. Based on the emissions that you
submitted to DAQ with your registration request, Witt Excavating, Inc. is not required to obtain an
approval order under R307-401 for the Heber City Aggregate Processing Facility. If you change your
operation such that there is an increase in emissions, we recommend that you notify us, as an approval
order may be required.

As authorized by the Utah Legislature, the fee for issuing this small source exemption is a one-time filing
fee in addition to the actual time spent by the review engineer and all other staff on the project. Payment
should be sent to DAQ upon receipt of the invoice.
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor
DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Tim Davis
Interim Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

/ % Û á Û Ù Û Þ
DAQE-EN162620001-25
Page 2
Thank you for registering your source with the DAQ. If you have any additional questions, please contact
Dylan Frederick at [phone] or [e-mail].

Sincerely,

Bryce C. Bird
Director

{{$s }}

Alan D. Humpherys, Manager
New Source Review Section

BCB:ADH:DF:jg

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

Small Source Registration
DAQE-EN162620001-25
{{$d1 }} Russ Witt Witt Excavating, Inc. 400 West Airport Road Heber City, UT 84032 [e-mail] Dear Mr. Witt:
Re: Request for Evaluation of Compliance with Rule R307-401-9, UAC: Small Source Exemption Project Fee Code: N162620001
On March 4, 2025, the Division of Air Quality (DAQ) received your request for a small source exemption for the Witt Excavating, Inc.- Heber City Aggregate Processing Facility. The source is located at 400 West Airport Road Heber City, Wasatch County. DAQ has determined the small source exemption applies to the source, as long as the equipment and associated processes operate as specified in the registration request. The small source exemption does not exempt a source from complying with other applicable federal,
state, and local regulations and the current Utah Administrative Code. Based on the emissions that you submitted to DAQ with your registration request, Witt Excavating, Inc. is not required to obtain an approval order under R307-401 for the Heber City Aggregate Processing Facility. If you change your
operation such that there is an increase in emissions, we recommend that you notify us, as an approval order may be required. As authorized by the Utah Legislature, the fee for issuing this small source exemption is a one-time filing fee in addition to the actual time spent by the review engineer and all other staff on the project. Payment should be sent to DAQ upon receipt of the invoice.
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor
Department of Environmental Quality
Tim Davis Interim Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director
DAQE-EN162620001-25 Page 2
Thank you for registering your source with the DAQ. If you have any additional questions, please contact Dylan Frederick at [phone] or [e-mail]. Sincerely, Bryce C. Bird Director {{$s }}

Alan D. Humpherys, Manager New Source Review Section
BCB:XXX:XX:jg
{{#d1=date1_es_:signer1:date:format(date, "mmmm d, yyyy")}} {{#s=Sig_es_:signer1:signature}}
Dylan Frederick <[e-mail]>
Fwd: Air Quality Compliance Advisory - Action Required
1 message
Alan Humpherys <[e-mail]>Thu, Mar 6, 2025 at 7:24 AM
To: Dylan Frederick <[e-mail]>
Dylan,
Can you please process this SSE?
Site ID: 16262
Peer: Katie
Thanks,
Alan
---------- Forwarded message ---------
From: Amit Nair <[e-mail]>
Date: Tue, Mar 4, 2025 at 5:12 PM
Subject: RE: Air Quality Compliance Advisory - Action Required
To: [e-mail] <[e-mail]>
Cc: Excavating Witt <[e-mail]>, Daniel Salas <[e-mail]>, Connor Kijowski <[e-mail]>
Connor
Please find attached documentation of emissions showing that, at an assumed aggregate production rate of 100,000 tpy (Witt typically only
processes around 50,000 tpy), the estimated emissions from the (Airport Road) facility are under 5 tpy (for all pollutants). Therefore, we consider
this facility currently exempt from requiring obtaining an Approval Order. The attached letter is addressed to Alan in NSR, requesting evaluation of
compliance with Rule R307-401-9, UAC: Small Source Exemption, but please use this as a response to your requests below, as appropriate. Do
let Russ or me know if you have any questions or need additional information.
Regards
Amit

From: Connor Kijowski <[e-mail]>
Sent: Wednesday, February 12, 2025 7:08 AM
To: Amit Nair <[e-mail]>
3/13/25, 3:52 PM State of Utah Mail - Fwd: Air Quality Compliance Advisory - Action Required
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-f:1825855088250969229&simpl=msg-f:1825855088250969229 1/5
Cc: Excavang Wi <[e-mail]>
Subject: Re: Air Quality Compliance Advisory - Acon Required

External Email
Amit,

Thanks for the email. No problem with the deadline extension to March 4, 2025. I appreciate your assistance in this matter.

Best,
Connor Kijowski
On Feb 11, 2025, at 13:55, Amit Nair <[e-mail]> wrote:

Hello Connor
Witt has just engaged us to help with emission calculations for their operations at the Airport Road location. Our plan is to evaluate
emissions and present a SSE to UDAQ for that location. Please would you consider providing an extension of the SSE due date by a
week, to March 4, 2025, for us to be able to complete the SSE application in an effective manner?
Thanks for your patience.
Regards
Amit

Amit Nair
Principal Professional
3/13/25, 3:52 PM State of Utah Mail - Fwd: Air Quality Compliance Advisory - Action Required
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-f:1825855088250969229&simpl=msg-f:1825855088250969229 2/5
849 West Levoy Drive Suite 200
Salt Lake City, Utah 84123
o| 801.261.3336
d| 801.713.2842
m| 801.891.9648
<image001.jpg>

From: Connor Kijowski <[e-mail]>
Sent: Monday, February 10, 2025 4:03 PM
To: Wi Excavang <[e-mail]>
Subject: Re: Air Quality Compliance Advisory - Acon Required

Good Afternoon Russ,

Due to the length of time it has taken to move the crushing operation from Airport Road to the new site at Daniel's Canyon and to resolve the ongoing
Compliance Advisory (attached for your reference), I am requesting the following information/action:
1. Provide the Division of Air Quality with an expected date the operations at the current location will shut down and move to the new location.
2. If that date is beyond March 1, 2025, a new Small Source Exemption (SSE) will need to be submitted for the current location. The SSE for the
current location needs to be submitted by no later than February 25, 2025. This should be a similar process to the SSE submitted for the
Daniel's Canyon location.
3. If the dates above are not met, a Notice of Violation will be submitted as referenced in the Compliance Advisory.
Please acknowledge receipt of this email and let me know if you have any questions.

Thank you,
Connor Kijowski

3/13/25, 3:52 PM State of Utah Mail - Fwd: Air Quality Compliance Advisory - Action Required
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-f:1825855088250969229&simpl=msg-f:1825855088250969229 3/5
On Thu, Sep 26, 2024 at 2:01 PM Connor Kijowski <[e-mail]> wrote:
Good Afternoon Russ,
It was just discovered that there was an issue with the addresses associated with the Compliance Advisory issued on April 24, 2024 and the Small
Source Exemption (SSE) issued on July 30, 2024. Both documents are attached for your reference. The Compliance Advisory was issued
specifically for the location at 300 W Airport Road and the SSE was issued for the future location of the Independence Pit located on Highway 40.
This means that the Compliance Advisory has not been resolved.
To fully resolve the issue, it is requested that Witt Excavating does the following:
1) Notify the DAQ once the operations at 300 W Airport road have ceased. I believe you said this will be in a month or two. You can email, call or
text me with that notification.
2) Notify the DAQ once the equipment has been transported to the Independence Pit and is operational. I will then visit the site to ensure all dust
control measures are in place. Once I have performed the site visit at the Independence Pit, the Compliance Advisory will be resolved.
Please let me know you have received this email and if you have any questions. I appreciate your assistance in this matter.
Thanks,

--
Connor Kijowski
Environmental Scientist | Minor Source
Compliance
M: [phone]
airquality.utah.gov

3/13/25, 3:52 PM State of Utah Mail - Fwd: Air Quality Compliance Advisory - Action Required
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-f:1825855088250969229&simpl=msg-f:1825855088250969229 4/5

--
Connor Kijowski
Environmental Scientist | Minor Source
Compliance
M: [phone]
airquality.utah.gov

--
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.
(SLC25L178936)_Witt AirportRdHeber SSE Appln 03-04-25.pdf
12103K
3/13/25, 3:52 PM State of Utah Mail - Fwd: Air Quality Compliance Advisory - Action Required
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-f:1825855088250969229&simpl=msg-f:1825855088250969229 5/5
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Current Date: 3/25/2025, 6:22:22 PM
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Engine Emissions Data
For Emissions / Certification feedback and questions, please submit a ticket via our ERC Request Portal
This emission data is Caterpillar's best estimate for this rating. If actual emissions are required then an
emission test needs to be run on your engine.
Serial Number (Machine)
Serial Number (Engine)NGH02443
Sales Model C9.3B
Regulatory Build Date 23-JAN-2021
As Shipped Data
Engine Arrangement Number 5062314
Certification Arrangement 3611820
Test Spec Number 5526638
Regulatory Status EPA / ARB / EU / R120 / MLIT / Korea
Labeled Model Year 2021
EPA Family Code MCPXL09.3NTF
EPA Emissions Level EPA TIER 4f
EU Emissions Level EU STAGE V
EU Type Approval e24*2016/1628*2018/989EV6/D*0014
Korea Type Approval C9.3B(CE9.3D2)//18EN*CA*01
UN R120 Type Approval 120R-000006
As-Shipped Flash File 5766740
CORR FL Power at RPM 341 HP (254.0 KW )2200 RPM
Advertised Power 335 HP 2,200RPM
Total Displacement 9.3 L
Disclaimer: The information provided has been compiled from third party sources and is accurate to the
best of Caterpillar's knowledge. However, Caterpillar cannot guarantee the accuracy, completeness, or
validity of the information and is not liable for any errors or omissions contained therein. All information
provided should be independently verified and confirmed, including by examining the emissions label
located on the engine.
Need emission replacement label? Click here!
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Caterpillar Confidential: Green
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© Caterpillar Inc. 2025 All Rights Reserved.
Data Privacy Statement.
Cookie Settings
Engine Emissions Data
For Emissions / Certification feedback and questions, please submit a ticket via our ERC Request Portal
This emission data is Caterpillar's best estimate for this rating. If actual emissions are required then an
emission test needs to be run on your engine.
Serial Number (Machine)
Serial Number (Engine)JR901171
Sales Model C13
Regulatory Build Date 09-MAY-2020
As Shipped Data
Engine Arrangement Number 5135947
Certification Arrangement 3611818
Test Spec Number 4581419
Regulatory Status EPA / ARB / S. Korea
Labeled Model Year 2020
EPA Family Code LCPXL12.5HTF
EPA Emissions Level EPA TIER 4f
Korea Type Approval C13(CE13C20)//15EN*CA*02
As-Shipped Flash File 5660195
CORR FL Power at RPM 443 HP (330.0 KW )2100 RPM
Advertised Power 440 HP 2,100RPM
Total Displacement 12.5 L
Disclaimer: The information provided has been compiled from third party sources and is accurate to the
best of Caterpillar's knowledge. However, Caterpillar cannot guarantee the accuracy, completeness, or
validity of the information and is not liable for any errors or omissions contained therein. All information
provided should be independently verified and confirmed, including by examining the emissions label
located on the engine.
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24004857.001A/SLC25L178936 Page 1 of 2 March 4, 2025
© 2025 Kleinfelder www.kleinfelder.com 849 West Levoy Drive, Suite 200, Salt Lake City, UT 84123 p | 801.261.3336

March 4, 2025
Kleinfelder Project No: 24004857.001A

Mr. Alan Humpherys
Utah Division of Air Quality
195 North 1950 West
Salt Lake City, Utah 84116

SUBJECT: Small Source Registration Notice
Witt Excavating, Inc. 400 West Airport Road
Heber City, Utah 84032

Dear Mr. Humpherys:

On behalf of Witt Excavating, Inc. (Witt Excavating), Kleinfelder, Inc. (Kleinfelder) is submitting a Small Source
Exemption (SSE) Registration Notice to the Utah Division of Air Quality (UDAQ) for the Witt Excavating, Inc.
(Witt Excavating) facility located in Heber City in Wasatch County, Utah. Witt Excavating is requesting UDAQ
review this SSE notice and respond with verification of permit exemption. Please note that this facility is separate
from Witt Excavating’s Independence Pit, located off Highway 40, also in Wasatch County, Utah. On July 30, 2024,
UDAQ issued (DAQE-EN162260001-24) an approval for an SSE request for the Independence Pit.

BACKGROUND
Witt Excavating operates an aggregate processing facility at 400 West Airport Road in Heber City, Utah. A site
vicinity map is included as Attachment A-1, a facility boundary map is included as Attachment A-2, and a site layout
map is included as Attachment A-3. At this facility, raw aggregate material is hauled in for processing
(crushing, screening) and processed aggregate products are hauled out to customers and job sites. No aggregate
mining is conducted at this facility. The facility uses water trucks for fugitive dust control from haul roads and
processing areas. Aggregate processing equipment use wet suppression (spray bars) for fugitive dust control.

FACILITY PARAMETERS

The facility is designed to process approximately 50,000 tons per year (tpy) of aggregate products. Emissions
presented in this request notice are calculated assuming year-round operation of the facility and are
conservatively based on a 100,000 tpy production rate. The facility equipment includes one (1) feeder, two (2)
crushers, one (1) triple-deck screen, and nine (9) conveyors. The crushers and screen are each powered by
self-contained diesel engines. Particulate emissions sources also include material transfer, haul roads, loader
activity, material stockpiles and wind erosion from the facility.
EMISSIONS SUMMARY

Kleinfelder has reviewed applicable regulations and estimated the facility’s air pollutant emissions using UDAQ-
approved emission factors and procedures commonly used for aggregate facilities. The emission totals from our
evaluation are provided in Table 1 below. Detailed emission calculations are provided as Attachment B.

24004857.001A/SLC25L178936 Page 2 of 2 March 4, 2025
© 2025 Kleinfelder www.kleinfelder.com
KLEINFELDER 849 West Levoy Drive, Suite 200, Salt Lake City, UT 84123 p | 801.261.3336
Table 1: Facility-wide (Potential) Emissions Estimates
Pollutant 100,000 tpy Aggregate Production Annual Emissions (tpy)
NOx 0.90
VOC 0.32
CO 2.99
SO2 1.02
PM10 (fugitive) 0.97
PM10 (non-fugitive) 0.05
PM10 (total) 1.02
PM2.5 (fugitive) 0.08
PM2.5 (non-fugitive) 0.05
PM2.5 (total) 0.13
HAPs 0.01
As shown in Table 1, facility wide emissions criteria pollutants are less than 5 tons per year (tpy) per pollutant.
Also, as shown in Table 1, facility-wide HAP emissions are less than 500 pounds per year of any HAP and less than
2,000 pounds per year of any combination of HAPs. The ETV Calculations for HAPs calculations are also included in
Table B-1A of Attachment B.
CONCLUSION
Per Utah Air Rules R307-401-9, this proposed facility is exempt from requiring obtaining an Approval Order. If the
facility’s emissions exceed the 5 tpy threshold, Witt Excavating shall be required to submit a notice of intent
(permit application) under R307-401-5 no later than 180 days after the end of the calendar year in which the
facility exceeded the emission threshold.
Kleinfelder prepared this SSE notice based on our understanding of the future requirements of Witt Excavating,
and in accordance with the standard of care in Utah at the time of this submittal. If you have any questions that
need to be addressed directly by Witt Excavating, please contact Russ Witt at 801.301.7635. If you have any
questions for Kleinfelder, please contact Amit Nair at 801.261.3336.
Respectfully Submitted,
KLEINFELDER
Amit Nair
Principal Air Quality Professional
ATTACHMENTS
A-1 Site Location Map
A-2 Facility Boundary Map
A-3 Site Layout Map
B Emission Calculation Spreadsheets (Tables B-1 through B-7)

ATTACHMENT A-1

SITE LOCATION MAP
www.kleinfelder.com
PROJECT NO.
DRAWN:
DRAWN BY:
CHECKED BY:
FILE NAME:
FIGURE
Witt Excavating, Inc.
Heber City, Utah
24004857
2/25/2025
D. Salas
A. Nair
Figure A-1.pdf
A-1
SITE VICINITY MAP

ATTACHMENT A-2

FACILITY BOUNDARY MAP

www.kleinfelder.com
PROJECT NO.
DRAWN:
DRAWN BY:
CHECKED BY:
FILE NAME:
24004857
02/25/2025
D. Salas
A. Nair
Figure A-2.pdf
A-2
FACILITY BOUNDARY MAP

ATTACHMENT A-3

SITE LAYOUT MAP

LEGEND
PROJECT NO. 24004857
DRAWN: 02/25/2025
DRAWN BY: D. SALAS
CHECKED BY: A. NAIR
FILE NAME:
Figure A-3.pdfwww.kleinfelder.com
FIGURE
C-1
C-2
C-3
C-4
C-5
C-6 C-7
C-8
C-9
Salt Lake County, Maxar, Microsoft
Text
INTERMOUNTAIN DRIVE
5300 S
ST
A
T
E

S
T

ATTACHMENT B

EMISSION CALCULATION SPREADSHEETS
Witt Excavating Inc. Facility - Heber City, UT
TABLE B-1: CONTROLLED ON-SITE EMISSIONS (AT 100,000 TPY PRODUCTION)
Annual (ton/yr)
GHGs
Fugitive Non-fugitive Total Fugitive Non-fugitive Total metric tons/yr
Haul Roads and Loader Routes - - - - - - - - - - - -0.36 - - -0.36 0.04 - - -0.04 - - -- - -
Storage Piles - - - - - - - - - - - -0.35 - - - 0.35 - - - - - - - - - - - - - - -
Material Handling - - - - - - - - - - - -0.38 - - - 0.38 0.03 - - - 0.03 - - - - - -
Wind Erosion - - - - - - - - - - - -0.02 - - -0.02 - - - - - -- - -- - -- - -
Diesel Generator (Less than 600 horsepower) 0.90 0.32 2.99 1.02 - - -0.05 0.05 - - -0.05 0.05 5.21E-03 515.48
Crushing Plant - - - - - - - - - - - -0.11 - - -0.11 0.02 - - -0.02 - - -- - -
Annual Totals (tpy)0.90 0.32 2.99 1.02 1.22 0.05 1.27 0.09 0.05 0.14 0.01 515.48
HAPsPM2.5Source Category NOx VOC
PM10COSO2
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT
TABLE B-1A: ETV Calculations for HAPs (Assuming ALL vertically unrestricted sources)
lb/hr acute chronic carcinogenic < 20 m 21 - 50 m 51 - 100 m > 100 m < 20 m 21 - 50 m 51 - 100 m > 100 m
1,3-Butadiene 106-99-0 2.00E-04 carcinogenic 4425 0.017 0.022 0.041 0.09 7.52E-02 9.7E-02 1.8E-01 4.0E-01 2.66E-03
2.1E-03 1.1E-03 5.0E-04 No No No No
Acetaldehyde 75-07-0 3.93E-03 acute 45041 0.038 0.051 0.092 0.18 1.71E+00 2.3E+00 4.1E+00 8.1E+00 2.30E-03
1.7E-03 9.5E-04 4.8E-04 No No No No
Acrolein 107-02-8 4.74E-04 acute 82149 0.038 0.051 0.092 0.18 3.12E+00 4.2E+00 7.6E+00 1.5E+01 1.52E-04
1.1E-04 6.3E-05 3.2E-05 No No No No
Benzene 71-43-2 4.78E-03 carcinogenic 1597 0.017 0.022 0.041 0.09 2.71E-02 3.5E-02 6.5E-02 1.4E-01 1.76E-01
1.4E-01 7.3E-02 3.3E-02 No No No No
Formaldehyde 50-00-0 6.05E-03 acute 368 0.038 0.051 0.092 0.18 1.40E-02 1.9E-02 3.4E-02 6.6E-02 4.32E-01
3.2E-01 1.8E-01 9.1E-02 No No No No
Naphthalene 91-20-3 4.35E-04 chronic 52429 0.051 0.066 0.123 0.269 2.67E+00 3.5E+00 6.4E+00 1.4E+01 1.63E-04
1.3E-04 6.7E-05 3.1E-05 No No No No
Toluene 108-88-3 2.10E-03 chronic 75362 0.051 0.066 0.123 0.269 3.84E+00 5.0E+00 9.3E+00 2.0E+01 5.45E-04
4.2E-04 2.3E-04 1.0E-04 No No No No
Xylenes (Total) 1330-20-7 1.46E-03 chronic 434192 0.051 0.066 0.123 0.269 2.21E+01 2.9E+01 5.3E+01 1.2E+02 6.59E-05
5.1E-05 2.7E-05 1.3E-05 No No No No
Notes
1. Provided by the UDAQ (2014 ACGIH - TLVs and UDAQ - TSLs and ETVs) and specific to HAP classification.
2. Calculated by converting the TLV / TWV to micrograms and multiplying by the ETF.
3. Comparing the potential HAP emissions with the ETV. If potential HAP emissions greater than ETV, the ratio is greater than one and dispersion modeling is required.
HAP Name CAS Number
Potential
Emissions Type of HAP
UDAQ published TLV/ TWA (1)
(ug/m3)
21 - 50 m
Need Modeling? UDAQ's Emission Threshold Factor (ETF) for
Vertically Restricted Sources (1)
(m3 lb / mg hr)
Emission Threshold Value (ETV) (2)
(lb/hr)
Ratio of Potential Emissions to ETV (3)
< 20 m 51 - 100
m
> 100
m51 - 100 m > 100 m 21 - 50 m< 20 m
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT
TABLE B-1B: FACILITY INFORMATION
Facility Information - Operating Hours
Operations
Time Hours/Day Time Hours/Day
Facility Operations 0800 - 1700 9 1700 - 0800 15 5 52 260
Aggregate Run and Haul-out Tonnages
Material
Annual (TPY) Daily (TPD)
Avg. Hourly
(TPH)1
Aggregate Products Material 100,000 1,600 178
Aggregate Raw Material 100,000 1,600 178
1. Average Hourly haul rate is calculated by dividing the maximum daily rate (tpd) by hours of operation.
Facility Site Information
Site Area Undisturbed Area
1 "Exposed"
Area 3
acres acres acres
5 4.5 0.125
1. "Undisturbed" Area: Area at the Facility that during the course of project will remain vegetated and not be disturbed during facility operations.
2. "Potentially Disturbed" Area: is the total area that could be disturbed during one year of facility operations. The total area is never subject to wind erosion at the same time.
3. "Exposed" Area: Area that is subject to wind erosion because the surface material has been disturbed by facility operations.
Diesel Generator
Generator Name Unit ID Power (kW) Power (hp)
Hours of
Operation
(annually)
Total
hp-hrs
Jaw Crusher Gen1 250 335 1350 452250
Impact Crusher Gen2 250 300 1350 405000
Screen Plant Gen3 72 97 1350 130950
TOTAL HP-hrs 452,250
Meteorological Data

Wind Speed (mph) 11
Weeks/year Days/year
0.5
acres
Source: UDAQ Wind Speed Map: Wind Speed for Wasatch County
Operating Not Operating Days/week
Potentially Disturbed Area 2
Item Value
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT
TABLE B-2: ROADS SUMMARY
PM10 PM2.5 PM10 PM2.5
ft. lb/hr lb/hr tons/yr tons/yr
153 2.00E-01 2.00E-02 5.62E-02 5.62E-03
128 1.17E-01 1.17E-02 3.20E-02 3.20E-03
86 2.94E-02 2.94E-03 8.14E-03 8.10E-04
265 4.62E-02 4.62E-03 1.28E-02 1.28E-03
0.39 0.04 0.11 0.01
PM10 PM2.5 PM10 PM2.5
ft. lb/hr lb/hr tons/yr tons/yr
250 9.00E-01 9.00E-02 2.50E-01 3.00E-02
0.90 0.09 0.25 0.03
Total Emissions:
Road Section
Length
Loader
Route
LD-1
Total Emissions:
Type of
Road Name of Road Section
ANNUAL CONTROLLED
EMISSIONSHOURLY CONTROLLED EMISSIONS
Type of
Road Name of Road Section
Road Section
Length
UP-1
Unpaved
Driveway
UP-4
UP-2
UP-3
ANNUAL CONTROLLED
EMISSIONSHOURLY CONTROLLED EMISSIONS
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT TABLE B-2A: UNPAVED ROAD SECTION UP-1
Facility Production 100,000 tpy1,600 tpd178 average tph100,000 tpy1,600 tpd178 average tph
Road Section Name UP-1Road Section Length 153 feet
ANNUAL and HOURLY VMT
Direction of Traffic
Average Empty Vehicle Weight (1)
Average Load Weight (2a)
Loaded Vehicle Weight (2b)
Average Weight (3)
Weighted average weight (5a)
VMT per year (8a)
VMT per hour (8a)
1 = one-way 2 = two-way tons tons tons tons tons/yr
average tons/hr tons feet miles miles miles
Aggregate Products Material Empty/Loaded 2 24.00 42.00 66.00 45.00 100,000 177.8 22.50 2,381.0 4.2 306 0.06 137.99 0.25
Aggregate Raw Material Empty/Loaded 2 24.00 42.00 66.00 45.00 100,000 177.8 22.50 2,381.0 4.2 306 0.06 137.99 0.25
45.00 275.97 0.49
PM10 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
1.63
PM10 Emissions (lbs/hr)
Emission Factor (lb/VMT) (9)
1.63
PM2.5 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
0.163
PM2.5 Emissions (lbs/hr)
Emission Factor (lb/VMT) (9)
0.163
Table Notes:
1.2a.2b. Loaded Vehicle Weight = Empty Vehicle Weight + Load Weight3.
Example Calculations For : Aggregate Products Material 2-way
Empty Vehicle Weight = 24.00 tonsLoad carried by vehicle = 42.00 tonsLoaded vehicle weight =66.00 tons24.00 tons (loaded 1-way)4.Example Calculations For : Aggregate Products Material 100,000 tons/year
5a.5b.6.
Example Calculations For : Aggregate Products Material 100,000 tons/year42.00 tons/trip 2,381.0 tripsTons per hour is the percentage of the material hauled by trucks applied to the hourly capacity of the plant.7.
8a.
8b.
9.10.Example Calculations For :Uncontrolled PM10 emissions (in tons per year) from this section of road
Based on Equation listed in Table Note (9),
1.63 lb/VMTFrom Table Note (8b),275.97 VMT/yr 2.25E-01 tons/yr
11.Example Calculations For :Uncontrolled PM2.5 emissions (in pounds per hour) from this section of road
Based on Equation listed in Table Note (9),Emission Factor for PM2.5 = [0.15 x (4.8/12)^0.9 x (22.5/3)^0.45] = 0.163 lb/VMTFrom Table Note (8a),0.49 VMT/hr 7.99E-02 lb/hr12. Control Efficiency = 75%
Therefore, Hourly Emissions of PM2.5 from this section of road = (0.163 x 0.49) = Source: 2015 UDAQ Haul Road Policy. Control Efficiency for 'road base roads and routine watering'.
Emission Factor for PM10 = [1.5 x (4.8/12)^0.9 x (22.5/3)^0.45] =
Vehicle Miles Traveled (VMT) per year = Therefore, Annual Emissions of PM10 from this section of road = (1.63 x 275.97) / 2000 =
Emissions (lbs/hr) = Emission factor (lb/VMT) x (VMT/hr)
Vehicle Miles Traveled (VMT) per hour =
Emissions (tons/yr) = Emission factor (lb/VMT) x (VMT/year) x (1/2000 ton/lbs)
Trips per period = (Load in-Loadout tonnage)/ Load weight
From Operations Data, annual tonnage of material hauled = Load weight = Therefore, Annual load in-loadout tonnage =100000 / 42 =
Distance per trip' obtained from site map and known operational conditions at facility. See site map for location of this section of road.
Vehicle Miles Traveled (VMT) per year = (trips per year) x (distance per trip)
Vehicle Miles Traveled (VMT) per hour = (trips per hour) x (distance per trip)Sum total of VMT on this section of road, VMT/yrSum total of vehicle miles traveled on this section of road, VMT/hrEmission Factor Source: Emission Factor Source: AP-42 5th Ed., Section 13.2.1, Equations 1 and 2, Paved Roads, Rev.: January 2011
Load in-Loadout = material tonnage/year or material tonnage/hour
From Operations Data, annual tonnage of material hauled =
Weighted' average weight of a vehicle = (average weight of the vehicle) x (load in-loadout on the vehicle, in tons) / (total load in-loadout by all vehicles on this section of road)Sum total of weighted averages of individual vehicle types
1. Weighted average of the manufacturer advertised weights of the individual trucks used 1. Weighted average of the manufacturer advertised weights of the individual trucks used
For 1-way traffic, Average Weight of vehicle = Empty vehicle weight OR Loaded vehicle weight, depending on if the vehicle is traveling empty or with a load on itFor 2-way traffic, Average Weight of vehicle = (Empty vehicle weight + Loaded vehicle weight)/ 2
Empty vehicle Weight + Load carried by vehicle =
Vehicle miles travelled (VMT/hr) (8b)
Uncontrolled PM2.5 Emissions
from this section of road (lbs/hr) (11)
Controlled PM2.5 Emissions from this section
of road (lbs/hr) (12)
Average Weight of vehicle =
0.49 7.99E-02 0.02
275.97 2.25E-02 0.006
0.49 7.99E-01 0.20
Vehicle miles travelled
(VMT/hr) (8b)
Uncontrolled PM10 Emissions
from this section of road
(lbs/hr) (11)
Controlled PM10 Emissions from this section
of road (lbs/hr) (12)
Vehicle miles travelled (VMT/yr) (8b)
Uncontrolled PM2.5 Emissions
from this section of road (tpy) (10)
Controlled PM2.5 Emissions from this section of road (tpy) (12)
0.06
W, mean weight (tons) of the vehicles traveling the road 22.50
a, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.9
b, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.45
Vehicle miles travelled (VMT/yr) (8b)
Uncontrolled PM10 Emissions from this section of road (tpy) (10)
Controlled PM10 Emissions from this section
of road (tpy) (12)
Equation Parameter Value
E, annual size-specific emission factor for PM10 (paved industrial roads) extrapolated for natural mitigation (9)see below table
275.97 2.25E-01
k, Particle size multiplier for particle size range (PM10), (lb/VMT) (Source: AP-42 Table 13.2.2-2)1.5
k, Particle size multiplier for particle size range (PM2.5), (lb/VMT) (Source: AP-42 Table 13.2.2-2)0.15
s, surface material silt content, (%) (Source: AP-42 Chapter 13.2.2)4.8
Load in-Loadout (4)Trips per year (6)Trips per hour (6)
distance per trip (7)
Weighted average used for calculating emission factor (5b), W =
Total vehicle miles traveled (VMT) on this road section (8b)
Aggregate Products Material
Aggregate Raw Material
Haul Product Type
Truck Load Description (Empty, Loaded, Empty/Loaded)
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT TABLE B-2B: UNPAVED ROAD SECTION UP-2
Facility Production
100,000 tpy1,600 tpd178 average tph100,000 tpy1,600 tpd178 average tph
Road Section Name UP-2Road Section Length 128 feet
ANNUAL and HOURLY VMT
Direction of Traffic Average Empty Vehicle Weight (1)Average Load Weight (2a)Loaded Vehicle Weight (2b)Average Weight (3)
Weighted average weight (5a)
VMT per year (8a)VMT per hour (8a)
1 = one-way 2 = two-way tons tons tons tons tons/yr average tons/hr tons feet miles miles miles
Aggregate Raw Material Empty/Loaded 2 24.00 42.00 66.00 45.00 100,000 177.8 45.00 2,381.0 4.2 256 0.05 115.44 0.21
45.00 115.44 0.21
PM10 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
2.22
PM10 Emissions (lbs/hr)
Emission Factor
(lb/VMT) (9)
2.22
PM2.5 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
0.222
PM2.5 Emissions (lbs/hr)
Emission Factor (lb/VMT) (9)
0.222
Table Notes:1.2a.2b. Loaded Vehicle Weight = Empty Vehicle Weight + Load Weight3.
Example Calculations For : Aggregate Raw Material 2-wayEmpty Vehicle Weight = 24.00 tonsLoad carried by vehicle = 42.00 tonsLoaded vehicle weight =66.00 tons24.00 tons (loaded 1-way)4.Example Calculations For : Aggregate Raw Material 100,000 tons/year
5a.5b.6.Example Calculations For : Aggregate Raw Material 100,000 tons/year42.00 tons/trip 2,381.0 tripsTons per hour is the percentage of the material hauled by trucks applied to the hourly capacity of the plant.7.8a.
8b.
9.
10.Example Calculations For Uncontrolled PM10 emissions (in tons per year) from this section of road
Based on Equation listed in Table Note (9),
2.22 lb/VMT
From Table Note (8b),
115.44 VMT/yr 0.13 tons/yr
11.Example Calculations For Uncontrolled PM2.5 emissions (in pounds per hour) from this section of road
Based on Equation listed in Table Note (9),Emission Factor for PM2.5 = [0.15 x (4.8/12)^0.9 x (45/3)^0.45] = 0.222 lb/VMTFrom Table Note (8a),0.21 VMT/hr 0.05 lb/hr
12. Control Efficiency = 75% Source: 2015 UDAQ Haul Road Policy. Control Efficiency for 'road base roads and routine watering'.
Emission Factor for PM10 = [1.5 x (4.8/12)^0.9 x (45/3)^0.45] =
Vehicle Miles Traveled (VMT) per year = Therefore, Annual Emissions of PM10 from this section of road = (2.22 x 115.44) / 2000 =
Emissions (lbs/hr) = Emission factor (lb/VMT) x (VMT/hr)
Vehicle Miles Traveled (VMT) per hour =
0.05 0.012
Therefore, Hourly Emissions of PM2.5 from this section of road = (0.222 x 0.21) =
Emissions (tons/yr) = Emission factor (lb/VMT) x (VMT/year) x (1/2000 ton/lbs)
Trips per period = (Load in-Loadout tonnage)/ Load weight
From Operations Data, annual tonnage of material hauled = Load weight = Therefore, Annual load in-loadout tonnage =100000 / 42 =
Vehicle Miles Traveled (VMT) per year = (trips per year) x (distance per trip)Vehicle Miles Traveled (VMT) per hour = (trips per hour) x (distance per trip)Sum total of VMT on this section of road, VMT/yrSum total of vehicle miles traveled on this section of road, VMT/hrEmission Factor Source: Emission Factor Source: AP-42 5th Ed., Section 13.2.2, Equations 1a and 2, Unpaved Roads, Rev.: November 2006
Vehicle miles travelled (VMT/hr) (8b)Uncontrolled PM2.5 Emissions from this section of road (lbs/hr) (11)
Controlled PM2.5 Emissions from this section of road (lbs/hr) (12)
Distance per trip' obtained from site map and known operational conditions at facility. See site map for location of this section of road.
Average Weight of vehicle =Load in-Loadout = material tonnage/year or material tonnage/hour
From Operations Data, annual tonnage of material hauled =
Weighted' average weight of a vehicle = (average weight of the vehicle) x (load in-loadout on the vehicle, in tons) / (total load in-loadout by all vehicles on this section of road)Sum total of weighted averages of individual vehicle types
1. Weighted average of the manufacturer advertised weights of the individual trucks used 1. Weighted average of the manufacturer advertised weights of the individual trucks used
For 1-way traffic, Average Weight of vehicle = Empty vehicle weight OR Loaded vehicle weight, depending on if the vehicle is traveling empty or with a load on itFor 2-way traffic, Average Weight of vehicle = (Empty vehicle weight + Loaded vehicle weight)/ 2
Empty vehicle Weight + Load carried by vehicle =
0.21
115.44 0.01 0.003
0.21 0.47 0.12
Vehicle miles travelled (VMT/hr) (8b)Uncontrolled PM10 Emissions from
this section of road (lbs/hr) (11)
Controlled PM10 Emissions from this section of
road (lbs/hr) (12)
Vehicle miles travelled (VMT/yr) (8b)Uncontrolled PM2.5 Emissions from this section of road (tpy) (10)
Controlled PM2.5 Emissions from this section of road (tpy) (12)
Vehicle miles travelled (VMT/yr) (8b)Uncontrolled PM10 Emissions from
this section of road (tpy) (10)
Controlled PM10 Emissions from this section of
road (tpy) (12)
115.44 0.13 0.03
W, mean weight (tons) of the vehicles traveling the road 45.00
a, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.9
b, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.45
Aggregate Products Material
Aggregate Raw Material
s, surface material silt content, (%) (Source: AP-42 Chapter 13.2.2)4.8
Trips per year
(6)
Equation Parameter Value
E, annual size-specific emission factor for PM10 (unpaved industrial roads) extrapolated for natural mitigation (9)see below table
k, Particle size multiplier for particle size range (PM10), (lb/VMT) (Source: AP-42 Table 13.2.2-2)1.5
k, Particle size multiplier for particle size range (PM2.5), (lb/VMT) (Source: AP-42 Table 13.2.2-2)0.15
Weighted average used for calculating emission factor (5b), W =
Total vehicle miles traveled (VMT) on this road section (8b)
Haul Product Type
Truck Load
Description (Empty, Loaded, Empty/Loaded)
Load in-Loadout (4)
Trips per hour
(6)
distance per trip (7)
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT TABLE B-2C: UNPAVED ROAD SECTION UP-3
Facility Production
100,000 tpy1,600 tpd178 average tph100,000 tpy1,600 tpd178 average tph
Road Section Name UP-3Road Section Length 86 feet
ANNUAL and HOURLY VMT
Direction of Traffic
Average Empty Vehicle
Weight (1)
Average Load Weight (2a)Loaded Vehicle Weight (2b)Average Weight (3)
Weighted average weight (5a)
VMT per year (8a)VMT per hour (8a)
1 = one-way 2 = two-way tons tons tons tons tons/yr average tons/hr tons feet miles miles miles
Aggregate Products Material Empty 1 24.00 42.00 66.00 24.00 100,000 177.8 24.00 2,381.0 4.2 86 0.02 38.78 0.07
24.00 38.78 0.07
PM10 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
1.68
PM10 Emissions (lbs/hr)
Emission Factor
(lb/VMT) (9)
1.68
PM2.5 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
0.168
PM2.5 Emissions (lbs/hr)
Emission Factor (lb/VMT) (9)
0.168
Table Notes:1.2a.2b. Loaded Vehicle Weight = Empty Vehicle Weight + Load Weight3.
Example Calculations For : Aggregate Products Material 1-wayEmpty Vehicle Weight = 24.00 tonsLoad carried by vehicle = 42.00 tonsLoaded vehicle weight =66.00 tons24.00 tons (loaded 1-way)4.Example Calculations For : Aggregate Products Material 100,000 tons/year
5a.5b.6.Example Calculations For : Aggregate Products Material 100,000 tons/year42.00 tons/trip 2,381.0 tripsTons per hour is the percentage of the material hauled by trucks applied to the hourly capacity of the plant.7.8a.
8b.
9.
10.Example Calculations For Uncontrolled PM10 emissions (in tons per year) from this section of road
Based on Equation listed in Table Note (9),
1.68 lb/VMT
From Table Note (8b),
38.78 VMT/yr 0.03 tons/yr
11.Example Calculations For Uncontrolled PM2.5 emissions (in pounds per hour) from this section of road
Based on Equation listed in Table Note (9),Emission Factor for PM2.5 = [0.15 x (4.8/12)^0.9 x (24/3)^0.45] = 0.168 lb/VMTFrom Table Note (8a),0.07 VMT/hr 0.01 lb/hr
12. Control Efficiency = 75%
Equation Parameter Value
Aggregate Products Material
Aggregate Raw Material
Haul Product Type
Truck Load
Description (Empty, Loaded, Empty/Loaded)
Trips per year
(6)
Trips per hour
(6)
distance per trip (7)
Weighted average used for calculating emission factor (5b), W =
Total vehicle miles traveled (VMT) on this road section (8b)
Load in-Loadout (4)
E, annual size-specific emission factor for PM10 (unpaved industrial roads) extrapolated for natural mitigation (9)see below table
k, Particle size multiplier for particle size range (PM10), (lb/VMT) (Source: AP-42 Table 13.2.2-2)1.5
k, Particle size multiplier for particle size range (PM2.5), (lb/VMT) (Source: AP-42 Table 13.2.2-2)0.15
38.78 0.03 0.01
s, surface material silt content, (%) (Source: AP-42 Chapter 13.2.2)4.8
W, mean weight (tons) of the vehicles traveling the road 24.00
a, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.9
b, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.45
Vehicle miles travelled (VMT/yr) (8b)
Uncontrolled PM10 Emissions from this section of road (tpy) (10)
Controlled PM10 Emissions from this section of
road (tpy) (12)
Vehicle miles travelled (VMT/hr) (8b)
Uncontrolled PM10 Emissions
from this section of road
(lbs/hr) (11)
Controlled PM10 Emissions from this section of
road (lbs/hr) (12)
0.07 0.12 0.03
Vehicle miles travelled (VMT/yr) (8b)
Uncontrolled PM2.5 Emissions
from this section of road (tpy) (10)
Controlled PM2.5 Emissions from this section of road (tpy) (12)
38.78 0.00 0.001
Vehicle miles travelled (VMT/hr) (8b)
Uncontrolled PM2.5 Emissions from this section of road (lbs/hr) (11)
Controlled PM2.5 Emissions from this section of road (lbs/hr) (12)
0.07 0.01 0.003
From Operations Data, annual tonnage of material hauled =
1. Weighted average of the manufacturer advertised weights of the individual trucks used 1. Weighted average of the manufacturer advertised weights of the individual trucks used
For 1-way traffic, Average Weight of vehicle = Empty vehicle weight OR Loaded vehicle weight, depending on if the vehicle is traveling empty or with a load on itFor 2-way traffic, Average Weight of vehicle = (Empty vehicle weight + Loaded vehicle weight)/ 2
Empty vehicle Weight + Load carried by vehicle = Average Weight of vehicle =Load in-Loadout = material tonnage/year or material tonnage/hour
From Operations Data, annual tonnage of material hauled =
Weighted' average weight of a vehicle = (average weight of the vehicle) x (load in-loadout on the vehicle, in tons) / (total load in-loadout by all vehicles on this section of road)Sum total of weighted averages of individual vehicle typesTrips per period = (Load in-Loadout tonnage)/ Load weight
Vehicle Miles Traveled (VMT) per year =
Load weight = Therefore, Annual load in-loadout tonnage =100000 / 42 =
Distance per trip' obtained from site map and known operational conditions at facility. See site map for location of this section of road.Vehicle Miles Traveled (VMT) per year = (trips per year) x (distance per trip)Vehicle Miles Traveled (VMT) per hour = (trips per hour) x (distance per trip)Sum total of VMT on this section of road, VMT/yrSum total of vehicle miles traveled on this section of road, VMT/hr
Emission Factor Source: Emission Factor Source: AP-42 5th Ed., Section 13.2.2, Equations 1a and 2, Unpaved Roads, Rev.: November 2006
Emissions (tons/yr) = Emission factor (lb/VMT) x (VMT/year) x (1/2000 ton/lbs)
Emission Factor for PM10 = [1.5 x (4.8/12)^0.9 x (24/3)^0.45] =
Source: 2015 UDAQ Haul Road Policy. Control Efficiency for 'road base roads and routine watering'.
Therefore, Annual Emissions of PM10 from this section of road = (1.68 x 38.78) / 2000 =
Emissions (lbs/hr) = Emission factor (lb/VMT) x (VMT/hr)
Vehicle Miles Traveled (VMT) per hour = Therefore, Hourly Emissions of PM2.5 from this section of road = (0.168 x 0.07) =
24004857.001A/SLC25L178936
© 2025 Kleinfelder
Attachment B
Page 1 of 1 3/4/2025
Witt Excavating Inc. Facility - Heber City, UT TABLE B-2D: UNPAVED ROAD SECTION UP-4
Facility Production
100,000 tpy1,600 tpd178 average tph100,000 tpy1,600 tpd178 average tph
Road Section Name UP-4Road Section Length 86 feet
ANNUAL and HOURLY VMT
Direction of Traffic Average Empty Vehicle Weight (1)Average Load Weight (2a)Loaded Vehicle Weight (2b)Average Weight (3)
Weighted average weight (5a)
VMT per year (8a)VMT per hour (8a)
1 = one-way 2 = two-way tons tons tons tons tons/yr average tons/hr tons feet miles miles miles
Aggregate Products Material Loaded 1 24.00 42.00 66.00 66.00 100,000 177.8 66.00 2,381.0 4.2 86 0.02 38.78 0.07
66.00 38.78 0.07
PM10 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
2.64
PM10 Emissions (lbs/hr)
Emission Factor
(lb/VMT) (9)
2.64
PM2.5 Emissions (tons/yr)
Emission Factor (lb/VMT) (9)
0.264
PM2.5 Emissions (lbs/hr)
Emission Factor (lb/VMT) (9)
0.264
Table Notes:1.2a.2b. Loaded Vehicle Weight = Empty Vehicle Weight + Load Weight3.
Example Calculations For : Aggregate Products Material 1-wayEmpty Vehicle Weight = 24.00 tonsLoad carried by vehicle = 42.00 tonsLoaded vehicle weight =66.00 tons24.00 tons (loaded 1-way)4.Example Calculations For : Aggregate Products Material 100,000 tons/year
5a.5b.6.Example Calculations For : Aggregate Products Material 100,000 tons/year42.00 tons/trip 2,381.0 tripsTons per hour is the percentage of the material hauled by trucks applied to the hourly capacity of the plant.7.8a.
8b.
9.
10.Example Calculations For Uncontrolled PM10 emissions (in tons per year) from this section of road
Based on Equation listed in Table Note (9),
2.64 lb/VMT
From Table Note (8b),
38.78 VMT/yr 0.05 tons/yr
11.Example Calculations For Uncontrolled PM2.5 emissions (in pounds per hour) from this section of road
Based on Equation listed in Table Note (9),Emission Factor for PM2.5 = [0.15 x (4.8/12)^0.9 x (66/3)^0.45] = 0.264 lb/VMTFrom Table Note (8a),0.07 VMT/hr 0.02 lb/hr
12. Control Efficiency = 75%
Equation Parameter Value
Aggregate Products Material
Aggregate Raw
Materials
Haul Product Type
Truck Load
Description (Empty, Loaded, Empty/Loaded)
Trips per year
(6)
Trips per hour
(6)
distance per trip (7)
Weighted average used for calculating emission factor (5b), W =
Total vehicle miles traveled (VMT) on this road section (8b)
Load in-Loadout (4)
E, annual size-specific emission factor for PM10 (unpaved industrial roads) extrapolated for natural mitigation (9)see below table
k, Particle size multiplier for particle size range (PM10), (lb/VMT) (Source: AP-42 Table 13.2.2-2)1.5
k, Particle size multiplier for particle size range (PM2.5), (lb/VMT) (Source: AP-42 Table 13.2.2-2)0.15
38.78 0.05 0.01
s, surface material silt content, (%) (Source: AP-42 Chapter 13.2.2)4.8
W, mean weight (tons) of the vehicles traveling the road 66.00
a, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.9
b, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.45
Vehicle miles travelled (VMT/yr) (8b)Uncontrolled PM10 Emissions from
this section of road (tpy) (10)
Controlled PM10 Emissions from this section of
road (tpy) (12)
Vehicle miles travelled (VMT/hr) (8b)Uncontrolled PM10 Emissions from
this section of road (lbs/hr) (11)
Controlled PM10 Emissions from this section of
road (lbs/hr) (12)
0.07 0.18 0.05
Vehicle miles travelled (VMT/yr) (8b)Uncontrolled PM2.5 Emissions from this section of road (tpy) (10)
Controlled PM2.5 Emissions from this section of road (tpy) (12)
38.78 0.01 0.001
Vehicle miles travelled (VMT/hr) (8b)Uncontrolled PM2.5 Emissions from this section of road (lbs/hr) (11)
Controlled PM2.5 Emissions from this section of road (lbs/hr) (12)
0.07 0.02 0.005
From Operations Data, annual tonnage of material hauled =
1. Weighted average of the manufacturer advertised weights of the individual trucks used 1. Weighted average of the manufacturer advertised weights of the individual trucks used
For 1-way traffic, Average Weight of vehicle = Empty vehicle weight OR Loaded vehicle weight, depending on if the vehicle is traveling empty or with a load on itFor 2-way traffic, Average Weight of vehicle = (Empty vehicle weight + Loaded vehicle weight)/ 2
Empty vehicle Weight + Load carried by vehicle = Average Weight of vehicle =Load in-Loadout = material tonnage/year or material tonnage/hour
From Operations Data, annual tonnage of material hauled =
Weighted' average weight of a vehicle = (average weight of the vehicle) x (load in-loadout on the vehicle, in tons) / (total load in-loadout by all vehicles on this section of road)Sum total of weighted averages of individual vehicle typesTrips per period = (Load in-Loadout tonnage)/ Load weight
Vehicle Miles Traveled (VMT) per year =
Load weight = Therefore, Annual load in-loadout tonnage =100000 / 42 =
Distance per trip' obtained from site map and known operational conditions at facility. See site map for location of this section of road.Vehicle Miles Traveled (VMT) per year = (trips per year) x (distance per trip)Vehicle Miles Traveled (VMT) per hour = (trips per hour) x (distance per trip)Sum total of VMT on this section of road, VMT/yrSum total of vehicle miles traveled on this section of road, VMT/hr
Emission Factor Source: Emission Factor Source: AP-42 5th Ed., Section 13.2.2, Equations 1a and 2, Unpaved Roads, Rev.: November 2006
Emissions (tons/yr) = Emission factor (lb/VMT) x (VMT/year) x (1/2000 ton/lbs)
Emission Factor for PM10 = [1.5 x (4.8/12)^0.9 x (66/3)^0.45] =
Source: 2015 UDAQ Haul Road Policy. Control Efficiency for 'road base roads and routine watering'.
Therefore, Annual Emissions of PM10 from this section of road = (2.64 x 38.78) / 2000 =
Emissions (lbs/hr) = Emission factor (lb/VMT) x (VMT/hr)
Vehicle Miles Traveled (VMT) per hour = Therefore, Hourly Emissions of PM2.5 from this section of road = (0.264 x 0.07) =
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Attachment B
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-2E: UNPAVED LOADER ROUTE LD-1
Facility Production 100,000 tpy1,600 tpd178 average tph
100,000 tpy1,600 tpd178 average tph
Road Section Name LD-1Road Section Length 250
Road Section Length (1)Empty Vehicle Weight (2a)Load Weight (2a)
Loaded Vehicle Weight (2b)
Average Weight (3)VMT per year (7a)VMT per hour (7a)
feet tons tons tons tons tons/yr tons/hr feet miles miles miles
LD-1 Loader Route 250 2 21.18 8.0 29.2 25.2 100,000 178 12,500 22.2 500 0.09 1,183.71 2.10
1,183.71 2.10
k
s
W
a
b
PM10 Emissions (tons/yr)
Emission Factor (lb/VMT) (8)
1.71
PM10 Emissions (lbs/hr)
Emission Factor (lb/VMT) (8)
1.71
PM2.5 Emissions (tons/yr)
Emission Factor (lb/VMT) (8)
0.171
PM2.5 Emissions (lbs/hr)
Emission Factor (lb/VMT) (8)
0.171
Table Notes:1. Loader route length is obtained from site map and known operational conditions at facility. See site map for location.2. The 'Percentage of Total Facility Material hauled on that Loader Route' is the percentage of all the facility materials that is hauled on that loader route.Example Calculations For: Loader Route Annual Tonnage of material hauled on this road from Loader Route: 100,000 tons/year2a.
2b. Loaded Vehicle Weight = Empty Vehicle Weight + Load Weight3.
Example Calculations For :2-wayEmpty Vehicle Weight = 21.18 tonsLoad carried by vehicle = 8 tonsLoaded vehicle weight = 29.18 tonsAverage Weight of vehicle = (21.18 + 29.18) / 2 = 25.184.100,000 tons/yearTons per hour is the percentage of the material hauled by trucks applied to the hourly capacity of the plant.5.Example Calculations For : Loader Route 100,000 tonsLoad weight = 8.0 tons/tripTherefore, Trips per year = 12500.0 trips6.For 1-way traffic, Distance per trip = Road lengthFor 2-way traffic, Distance per trip = Road length * 27a.
7b.
8.Emission Factor for PM10 = [k x (s/12)^a x (W/3)^b] Also see equation above.9.
Example Calculations For : Uncontrolled PM10 emissions (in tons per year) from this section of road Based on Equation listed in Table Note (9),1.71 lb/VMTFrom Table Note (7b),1183.71 VMT/yr 1.01 tons/yr10.
Example Calculations For : Uncontrolled PM2.5 emissions (in pounds per hour) from this section of road
Based on Equation listed in Table Note (9),0.171 lb/VMTFrom Table Note (7b),2.10 VMT/hr 0.36 lb/hr11. Control Efficiency = 75% Source: 2015 UDAQ Haul Road Policy. Control Efficiency for 'road base roads and routine watering'.
Vehicle Miles Traveled (VMT) per hour = Therefore, Hourly Emissions of PM2.5 from this section of road = (0.171 x 2.1) =
Emission Factor for PM10 = [1.5 x (4.8/12)^0.9 x (25.18/3)^0.45] =
Vehicle Miles Traveled (VMT) per year = Therefore, Annual Emissions of PM10 from this section of road = (1.71 x 1183.71) / 2000 = Emissions (lbs/hr) = Emission factor (lb/VMT) x (VMT/hr)
Emission Factor for PM2.5 = [0.15 x (4.8/12)^0.9 x (25.18/3)^0.45] =
Emissions (tons/yr) = Emission factor (lb/VMT) x (VMT/year) x (1/2000 ton/lbs)
Trips per period = (Load in-Loadout tonnage)/ Load weight
From Operations Data, annual tonnage of material hauled =
100000 / 8 = Distance per trip depends on the direction of traffic on the road:
Vehicle Miles Traveled (VMT) per year = (trips per year) x (distance per trip)Vehicle Miles Traveled (VMT) per hour = (trips per hour) x (distance per trip)Sum total of VMT on this section of road, VMT/yrSum total of vehicle miles traveled on this section of road, VMT/hrEmission Factor Source: Emission Factor Source: AP-42 5th Ed., Section 13.2.2, Equations 1a and 2, Unpaved Roads, Rev.: November 2006
2.10 0.36 0.09
TOTAL Annual material hauled on Empty vehicle Weight + Load carried by vehicle = :
Empty Vehicle Weight--Average of empty vehicle weights of loader to be used at the facilityLoad Weight--Average of typical load carried by loader to be used at the facility.
For 1-way traffic, Average Weight of vehicle = Empty vehicle weight OR Loaded vehicle weight, depending on if the vehicle is traveling empty or with a load on itFor 2-way traffic, Average Weight of vehicle = (Empty vehicle weight + Loaded vehicle weight)/ 2Loader Route
Load in-Loadout = the amount of material tonnage/year or material tonnage/hour from that load source that is hauled on this route
Empty vehicle Weight + Load carried by vehicle =
1,183.71 0.10 0.03
Vehicle miles travelled (VMT/hr) (7b)
Uncontrolled PM2.5 Emissions
from this section of road (lbs/hr) (10)
Controlled PM2.5 Emissions from this section of road (lbs/hr) (11)
2.10 3.59 0.90
Vehicle miles travelled (VMT/yr) (7b)Uncontrolled PM2.5 Emissions from this section of road (tpy) (9)
Controlled PM2.5 Emissions from this section of road (tpy) (11)
Controlled PM10 Emissions from this
section of road (tpy) (11)
1,183.71 1.01 0.25
Vehicle miles travelled (VMT/hr) (7b)
Uncontrolled PM10 Emissions
from this section of road (lbs/hr) (10)
Controlled PM10 Emissions from this
section of road (lbs/hr) (11)
a, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.9
b, constant for PM10 and PM2.5 on industrial roads (Source: AP-42 Table 13.2.2-2)0.45
Vehicle miles travelled (VMT/yr) (7b)Uncontrolled PM10 Emissions
from this section of road (tpy) (9)
k, Particle size multiplier for particle size range (PM2.5), (lb/VMT) (Source: AP-42 Table 13.2.2-2)0.15
s, surface material silt content, (%) (Source: AP-42 Chapter 13.2.2)4.8
W, mean weight (tons) of the vehicles traveling the road 25.18
Equation Parameter Value
E, annual size-specific emission factor for PM10 (unpaved industrial roads) extrapolated for natural mitigation (9)see below table
k, Particle size multiplier for particle size range (PM10), (lb/VMT) (Source: AP-42 Table 13.2.2-2)1.5
Trips per year (5)
Trips per hour (5)
Distance per trip (6)
Total vehicle miles traveled (VMT) on this road section (7b)
Load in-Loadout (4)Direction of Traffic (One-way or Two-way)Haul Route ID Haul Road Description
Aggregate Products Material
Aggregate Raw Material
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-3: STORAGE PILES
PM10 EF2 Pile Size
lb/acre-day acres lb/hr Tons/year
SP1 Aggregate Raw /
Products Materials 6.30 Water
Stabilization 75% 0.50 0.09 0.10
SP2 Aggregate Products
Material 6.30 Water
Stabilization 75% 1.20 0.21 0.25
TOTAL: 1.70 0.30 0.35
Notes:
9 hrs/day
5 days/week
52 weeks/year
260 days/year
=75%
75%
Controlled PM10 Emissions (lb/hr) = 0.5 (acres) x 6.3 (lb/acres/day) / (hrs/day) x (1-0.75) = 0.0875 lb/hr
Controlled PM10 Emissions (ton/yr) = 0.5 (acres) x 6.3 (lb/acres/day) x 52 (days/yr) / 2000 (lb/ton) x (1-0.75) = 0.1 ton/yr
Storage Pile
ID Storage Pile Source Control Method
Control
Efficiency3
PM10 Emissions
Number of days facility storage piles are active =
1. Active operations of facility storage piles, hours in a day =
Number of days per week facility storage piles are active =
Number of weeks per year facility storage piles are active =
Based on control efficiency of =
2. Emission Factor Source: AP-42 4th Ed., Section 8.19.1, Table 8.19.1-1 (Storage Piles), dated September, 1985. Active
Storage Piles: 6.3 lbs/acre/day.
3. Storage piles use water stabilization and since the piles are very active, the material remains wet.
Therefore, a control efficiency is estimated, based on AP-42 13.2.4.
4. Example Calculation for Aggregate Raw / Products Materials:
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Attachment B
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-4: MATERIAL HANDLING
PM10 EF2 PM2.5 EF2
TPY Avg. TPH1 lb/ton lb/ton lb/hr TPY lb/hr TPY
MH1 Loader building stock piles 100,000 178 0.003704 0.000561 0.66 0.19 5.61E-02 1.40E-02
MH2 Loader loading trucks with product material 100,000 178 0.003704 0.000561 0.66 0.19 5.61E-02 1.40E-02
TOTAL: 1.32 0.38 0.11 0.03
Notes:
1. Average Hourly haul rate is calculated by dividing the maximum daily rate (tpd) by hours of operation.
2. Emission Factor Source: AP-42 5th Ed. Section 13.2.4.3 Equation 1 as follows:
EF = k *(0.0032)*(U/5)1.3/(M/2)1.4 (lb/ton), where
M (Moisture) = 1.77 % (AP-42 5th Ed. Table 11.12-2 subpart b)
U (Wind speed) = 11 mph
k(for PM10) = 0.35 (AP-42 5th Ed. Section 13.2.4.3)
k(for PM2.5) = 0.053 (AP-42 5th Ed. Section 13.2.4.3)
PM10 Emission Factor Calculations for Loader building stock piles = 0.35x (0.0032) x (11/5) ^1.3 / (1.77/2) ^1.4 =0.003704 lb/ton
PM2.5 Emission Factor Calculations for Loader building stock piles = 0.053x (0.0032) x (11/5) ^1.3 / (1.77/2) ^1.4 =0.000561 lb/ton
Example Calculation: Loader building stock piles PM10 = 100000 TPY x 0.003704 lb/ton x 1/2000 ton/lbs = 0.19 TPY
Modeling Area ID
Source: UDAQ Wind Speed Map: Wind Speed for Wasatch County
Material Handled PM2.5 EmissionsPM10 EmissionsMaterial
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-5: WIND EROSION FROM EXPOSED AREAS
PM10 EF1
Total Site
Area2
"Undisturbed"
Area 3
"Potentially
Disturbed"
Area 4, 5
"Exposed"
Area 5, 6
T/acre/yr acres acres acres acres lb/hr TPY
WE1 Wind Erosion 0.19 5 4.50 0.50 0.125 0.01 0.02
TOTALS 0.01 0.02
Notes:
1. EmissionLoader loading trucks with processed aggregate
2. Total leased property at the Facility.
3. "Undisturbed" Area: Area at the Facility that during the course of one year will remain vegetated or will be reclaimed.
6. "Exposed" Area: Area that is subject to wind erosion because the surface material has been disturbed by facility operations.
5. "Potentially Disturbed" area is the total area that could be disturbed during one year of facility operations. The total area is never subject to wind erosion at the same time.
For this reason, wind erosion emissions are estimated based on the assumption that 25% of the "Potentially Disturbed" area is "Exposed" area.
PM10 Emissions 6
Group ID Source
4. "Potentially Disturbed" Area: Area where the surface material, at any one time, during any one year, could be disturbed and be subject to wind erosion.
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Attachment B
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-6: GENERATOR < 600 hp
Unit ID Year Power (kW)Power (hp)1
Hours of
Operation
(annually)
Total
hp-hrs
Gen1 2021 250 335 1350 452250
Gen2 2020 250 300 1350 405000
Gen3 2006 72 97 1350 130950
Unit ID Rating (hp) VOC NOx CO PM10 PM2.5 SO2 Units
Gen1 335 3.09E-04 6.61E-04 5.73E-03 3.31E-05 3.31E-05 2.05E-03 lb/hp-hr
Gen2 300 3.09E-04 6.61E-04 5.73E-03 3.31E-05 3.31E-05 2.05E-03 lb/hp-hr
Gen3 97 2.96E-03 9.38E-03 8.16E-03 6.61E-04 6.61E-04 2.05E-03 lb/hp-hr
VOC NOx CO PM10 PM2.5 SO2(lb/hr)(lb/hr)(lb/hr)(lb/hr)(lb/hr)(lb/hr)Gen1 0.10 0.22 1.92 0.01 0.01 0.69Gen2 0.09 0.20 1.72 0.01 0.01 0.62
Gen3 0.29 0.91 0.79 0.06 0.06 0.20
TOTAL: 0.48 1.33 4.43 0.08 0.08 1.51
VOC NOx CO PM10 PM2.5 SO2
(tpy) (tpy) (tpy) (tpy) (tpy) (tpy)
Gen1 1,350 0.07 0.15 1.30 0.01 0.01 0.47
Gen2 1,350 0.06 0.14 1.16 0.01 0.01 0.42
Gen3 1,350 0.20 0.61 0.53 0.04 0.04 0.14
TOTAL: 0.32 0.90 2.99 0.05 0.05 1.02
Hourly
Emissions2
Annual
Emissions3
Hourly
Emissions2
Annual
Emissions3
Hourly
Emissions2
Annual
Emissions3
Hourly
Emissions2
Annual
Emissions3
(lb/MMBtu)lb/hp-hr5 (lb/hr) (tons/year) (lb/hr) (tons/year) (lb/hr) (tons/year) (lb/hr) (tons/year)
1,3-Butadiene 106-99-0 3.91E-05 2.74E-07 9.17E-05 1.79E-05 8.21E-05 1.79E-05 2.65E-05 1.79E-05 2.00E-04 5.38E-05
Acetaldehyde 75-07-0 7.67E-04 5.37E-06 1.80E-03 3.52E-04 1.61E-03 3.52E-04 5.21E-04 3.52E-04 3.93E-03 1.05E-03
Acrolein 107-02-8 9.25E-05 6.48E-07 2.17E-04 4.24E-05 1.94E-04 4.24E-05 6.28E-05 4.24E-05 4.74E-04 1.27E-04
Benzene 71-43-2 9.33E-04 6.53E-06 2.19E-03 4.28E-04 1.96E-03 4.28E-04 6.34E-04 4.28E-04 4.78E-03 1.28E-03
Formaldehyde 50-00-0 1.18E-03 8.26E-06 2.77E-03 5.41E-04 2.48E-03 5.41E-04 8.01E-04 5.41E-04 6.05E-03 1.62E-03
Naphthalene 91-20-3 8.48E-05 5.94E-07 1.99E-04 3.89E-05 1.78E-04 3.89E-05 5.76E-05 3.89E-05 4.35E-04 1.17E-04
Toluene 108-88-3 4.09E-04 2.86E-06 9.59E-04 1.87E-04 8.59E-04 1.87E-04 2.78E-04 1.87E-04 2.10E-03 5.62E-04
Xylene (Total) 1330-20-7 2.85E-04 2.00E-06 6.68E-04 1.31E-04 5.99E-04 1.31E-04 1.94E-04 1.31E-04 1.46E-03 3.92E-04
TOTAL: 8.89E-03 1.74E-03 7.96E-03 1.74E-03 2.57E-03 1.74E-03 1.94E-02 5.21E-03
7,000 BTU/hp-hr; AP-42, Table 3.3-1 & Table 3.4-1, note "e".
Total
2. Hourly Emissions (lb/hr) = Emission Factor (lb/hp-hr) x Generator Rating (hp)
3. Annual Emissions (tpy) = Emission Factor (lb/hr-hr) x Generator Rating (hp) x Annual Operating Hours (hrs) x 1 ton/2000 lbs
4. Emission factors for HAPs pollutants were obtained from AP-42 5th Ed, Section 3.3, Table 3.3.2 dated October 1996.5. Emission factors converted from lb/MMBTU to lb/hp-hr based on:
1a. Emission factors for CO, NOx, VOCs and PM were obtained from EPA Nonroad Diesel Engine Emission Standards. Emission factor for SO2 obtained from AP-42 5th Ed, Chapter 3.3 Table
3.3-1, dated October 1996.
1b. Since the Tier 2 emission factor is provided as NOx+NMHC, a ratio of 76% NOX to 24% NMHC (VOC) was assumed. Reference: https://epa.ohio.gov/static/Portals/27/genpermit/CI.calcs.pdf
HOURLY AND ANNUAL HAP EMISSIONS
HOURLY EMISSIONS2
ANNUAL EMISSIONS3
Gen3
AP-42 Emission Factor4
Hazardous Air Pollutant CAS
Number
Gen1 Gen2
Unit ID Annual Operating Hours
(hrs/yr)
Unit ID
Jaw Crusher
Impact Crusher
Screen Plant
Screen Plant 1b
Description
Jaw Crusher
Impact Crusher
On-Site Power (Diesel)
Generator Name
EMISSION FACTORS1a
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Witt Excavating Inc. Facility - Heber City, UT
TABLE B-7: AGGREGATE PROCESSING
Hourly 200 TPH
Annual 100,000 TPY
Description Feed Rate Feed Rate 0 0 00PM10PM2.5 PM2.5
(TPH) (TPY) (lb/ton) (lb/ton) lb/hr TPY lb/hr TPY
Excavator to Feeder - Grizzly Feeder 200.0 100,000 Moisture/wet suppression 1.60E-05 1, 2 3.20E-03 8.00E-04
CRUSHERS
Crusher 1 - Jaw Crusher 200.0 100,000 Moisture/wet suppression 5.40E-04 1.00E-04 2,3 1.08E-01 2.70E-02 2.00E-02 5.00E-03
Crusher 2 - Impact Crusher 200.0 100,000 Moisture/wet suppression 5.40E-04 1.00E-04 2,3 1.08E-01 2.70E-02 2.00E-02 5.00E-03
SCREENS
Screen 1 - Triple Deck 200.0 100,000 Moisture/wet suppression 7.40E-04 5.00E-05 2, 3 1.48E-01 3.70E-02 1.00E-02 2.50E-03
CONVEYORS
Conveyor 1 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 2 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 3 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 4 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 5 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 6 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 7 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 8 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
Conveyor 9 200.0 100,000 Moisture/wet suppression 4.60E-05 1.30E-05 2 9.20E-03 2.30E-03 2.60E-03 6.50E-04
TOTAL 0.450.110.070.02
Production Rate (Average):
2. Based on controlled emission factors (with wet suppression) for applicable activity provided in Table 11.19.2-2 (Crushed Stone Processing and Pulverized Mineral
Processing), AP-42 5th Ed. Final Section 11.19.2 updated August 2004.
3. Includes emissions from transfer of material from equipment to adjacent conveyor(s) or other equipment
1. Based on emission factor for truck unloading of conveyor fragmented stone to the feeder provided in Table 11.19.2-2., AP-42 5th Ed. Final Section 11.19.2 updated August 2004.
Emission Control
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Attachment B
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