DAQ-2024-005090

Small Source Registration

DAQE-EN161950001-24

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Val Rees
Harward and Rees
PO Box 279
Loa, UT 84747
[e-mail]

Dear Val Rees:

Re: Request for Evaluation of Compliance with Rule R307-401-9, UAC: Small Source Exemption
Project Fee Code: N161950001

On January 18, 2024, the Division of Air Quality (DAQ) received your request for a small source
exemption for the Harward and Rees LeGrand Johnson Blanding Pit. The source is located
approximately three miles northeast of Blanding, San Juan County. The UTM (Universal Transverse
Mercator) coordinates for the source location are 637,010 meters Easting and 4,169,227 meters Northing
(Datum NAD 48, Zone 12).

According to your application, onsite equipment includes: one (1) 300 ton per hour jaw crusher,
diesel-powered by a Tier 4f, 381 hp engine; one (1) 300 ton per hour, electric cone crusher; four (4)
electric stacker belts; one (1) stacker belt, diesel- powered by a 50 hp engine; and one (1) diesel-fired,
Tier 4f, 776 hp generator engine. According to your application, each piece of equipment runs a
maximum of approximately 1,000 hours, annually.

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. Please note that the small source
exemption is only valid for the above-reference location. Harward and Rees shall notify the DAQ
prior to moving to a new location.

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, the Harward and Rees LeGrand Johnson Blanding Pit is
not required to obtain an approval order under R307-401. 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.

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

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

" / 2 / 6 Û Ù Û Ù Û Ý
DAQE-EN161950001-24
Page 2
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.

Thank you for registering your source with the DAQ. If you have any additional questions, please contact
Katie Andersen at [phone] or [e-mail].

Sincerely,

Bryce C. Bird
Director

{{$s }}

Alan D. Humpherys, Manager
New Source Review Section

BCB:ADH:KA:jg

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

Wind Erosion of Exposed Area
Total Area of Disturbed Ground 3 acres
Emission Factors & Distribution
TSP Emission Factor 0.38
PM10 Content 50%
PM2.5 Content 7.5%
Pollutant
Emission
Factor
(tons/acre-year)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)
PM10 0.19 0.13 0.57
PM2.5 0.03 0.02 0.09
Disturbed Ground
Reference
AP-42 Section 13.2.5.3
AP-42 Table 11.9-4
Page 1 of 1
Version 1.1
September 4, 2019
Heating Value of Natural Gas 1020 BTU/scf or MMBtu/MMscf
Equipment Details
Rating 25 MMBtu/hour NOx Size Table 1.4-1 lb/10^6 scf lb/MMBtu lb/hr Ton/year Check
Operational Hours 8,760 hours/year >100 MMBtu/hr Uncontrolled - Pre NSPS (Subparts D & Db)280 0.2745 6.86 30.06
Firing Normal >100 MMBtu/hr Uncontrolled - Post NSPS (Subparts D & Db)190 0.1863 4.66 20.40
>100 MMBtu/hr Controlled - Low Nox burners 140 0.1373 3.43 15.03
Criteria Pollutant
Concentration
(ppm)
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference >100 MMBtu/hr Controlled - Flue gas recirculation (FGR)100 0.0980 2.45 10.74 Match
NOX 0 100 2.45 10.74 <100 MMBtu/hr Uncontrolled 100 0.0980 2.45 10.74 Match
CO 0 84 2.06 9.02 <100 MMBtu/hr Controlled - Low Nox burners 50 0.0490 1.23 5.37
PM10 7.6 0.19 0.82 <100 MMBtu/hr Controlled - Low Nox burners/FGR 32 0.0314 0.78 3.44
PM2.5 7.6 0.19 0.82 Tangential-Fired Uncontrolled 170 0.1667 4.17 18.25
SO2 0.6 0.01 0.06 Tangential-Fired Controlled - FGR 76 0.0745 1.86 8.16
VOC 5.5 0.13 0.59
Lead 0.0005 0.00 0.00 CO Size Table 1.4-1 lb/10^6 scf lb/MMBtu lb/hr Ton/year Check
HAP 0.05 0.20 See Below >100 MMBtu/hr Uncontrolled - Pre NSPS (Subparts D & Db)84 0.0824 2.06 9.02 Match
>100 MMBtu/hr Uncontrolled - Post NSPS (Subparts D & Db)84 0.0824 2.06 9.02 Match
Green House Gas Pollutant
Global
Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference >100 MMBtu/hr Controlled - Low Nox burners 84 0.0824 2.06 9.02 MatchCO2 (mass basis)1 120,000 2,941 12,882 >100 MMBtu/hr Controlled - Flue gas recirculation (FGR)84 0.0824 2.06 9.02 Match
Methane (mass basis)25 2.3 0.06 0.25 <100 MMBtu/hr Uncontrolled 84 0.0824 2.06 9.02 MatchN2O (mass basis)298 2.2 0.05 0.24 <100 MMBtu/hr Controlled - Low Nox burners 84 0.0824 2.06 9.02 Match
CO2e 12,959 <100 MMBtu/hr Controlled - Low Nox burners/FGR 84 0.0824 2.06 9.02 Match
Tangential-Fired Uncontrolled 24 0.0235 0.59 2.58
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference Tangential-Fired Controlled - FGR 98 0.0961 2.40 10.52
2-Methylnaphthalene 2.40E-05 5.88E-07 2.58E-06
3-Methylchloranthrene 1.80E-06 4.41E-08 1.93E-07 Any Size Table 1.4-2 lb/10^6 scf lb/MMBtu lb/hr Ton/year Check
7,12-Dimethylbenz(a)anthracene 1.60E-05 3.92E-07 1.72E-06 CO2 120,000 117.6471 2,941 12,882 Match
Acenaphthene 1.80E-06 4.41E-08 1.93E-07 Lead 0.0005 0.0000 0.00 0.00 Match
Acenaphthylene 1.80E-06 4.41E-08 1.93E-07 N2O Uncontrolled 2.2 0.0022 0.05 0.24 Match
Anthracene 2.40E-06 5.88E-08 2.58E-07 Controlled - Low Nox burners 0.64 0.0006 0.02 0.07
Benz(a)anthracene 1.80E-06 4.41E-08 1.93E-07 PM (total)7.6 0.0075 0.19 0.82 Match
Benzene 2.10E-03 5.15E-05 2.25E-04 PM (cond)5.7 0.0056 0.14 0.61
Benzo(a)pyrene 1.20E-06 2.94E-08 1.29E-07 PM (filter)1.9 0.0019 0.05 0.20
Benzo(b)fluoranthene 1.80E-06 4.41E-08 1.93E-07 SO2 0.6 0.0006 0.01 0.06 Match
Benzo(g,h,i)perylene 1.20E-06 2.94E-08 1.29E-07 TOC 11 0.0108 0.27 1.18
Benzo(k)fluoranthene 1.80E-06 4.41E-08 1.93E-07 Methane 2.3 0.0023 0.06 0.25 Match
Chrysene 1.80E-06 4.41E-08 1.93E-07 VOC 5.5 0.0054 0.13 0.59 Match
Dibenzo(a,h)anthracene 1.20E-06 2.94E-08 1.29E-07
Dichlorobenzene 1.20E-03 2.94E-05 1.29E-04 Global Warming Potential lb/hr Ton/year
Fluoranthene 3.00E-06 7.35E-08 3.22E-07 CO2 1 2,941 12,882
Fluorene 2.80E-06 6.86E-08 3.01E-07 Methane 25 1 6
Formaldehyde 7.50E-02 1.84E-03 8.05E-03 N2O 298 16 70
Hexane 1.80E+00 4.41E-02 1.93E-01 CO2e Total CO2e 2,959 12,959 Match
Indeno(1,2,3-cd)pyrene 1.80E-06 4.41E-08 1.93E-07
Naphthalene 6.10E-04 1.50E-05 6.55E-05 HAP - Organic Table 1.4-3 lb/10^6 scf lb/MMBtu lb/hr Ton/year Check
Phenanathrene 1.70E-05 4.17E-07 1.83E-06 2-Methylnaphthalene 2.40E-05 2.35E-08 5.88E-07 2.58E-06 Match
Pyrene 5.00E-06 1.23E-07 5.37E-07 3-Methylchloranthrene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Toluene 3.40E-03 8.33E-05 3.65E-04 7,12-Dimethylbenz(a)anthracene 1.60E-05 1.57E-08 3.92E-07 1.72E-06 Match
Arsenic 2.00E-04 4.90E-06 2.15E-05 Acenaphthene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Beryllium 1.20E-05 2.94E-07 1.29E-06 Acenaphthylene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Cadmium 1.10E-03 2.70E-05 1.18E-04 Anthracene 2.40E-06 2.35E-09 5.88E-08 2.58E-07 Match
Chromium 1.40E-03 3.43E-05 1.50E-04 Benz(a)anthracene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Cobalt 8.40E-05 2.06E-06 9.02E-06 Benzene 2.10E-03 2.06E-06 5.15E-05 2.25E-04 Match
Manganese 3.80E-04 9.31E-06 4.08E-05 Benzo(a)pyrene 1.20E-06 1.18E-09 2.94E-08 1.29E-07 Match
Mercury 2.60E-04 6.37E-06 2.79E-05 Benzo(b)fluoranthene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Nickel 2.10E-03 5.15E-05 2.25E-04 Benzo(g,h,i)perylene 1.20E-06 1.18E-09 2.94E-08 1.29E-07 Match
Selenium 2.40E-05 5.88E-07 2.58E-06 Benzo(k)fluoranthene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Chrysene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Dibenzo(a,h)anthracene 1.20E-06 1.18E-09 2.94E-08 1.29E-07 Match
Dichlorobenzene 1.20E-03 1.18E-06 2.94E-05 1.29E-04 Match
Fluoranthene 3.00E-06 2.94E-09 7.35E-08 3.22E-07 Match
Fluorene 2.80E-06 2.75E-09 6.86E-08 3.01E-07 Match
Formaldehyde 7.50E-02 7.35E-05 1.84E-03 8.05E-03 Match
Hexane 1.80E+00 1.76E-03 4.41E-02 1.93E-01 Match
Indeno(1,2,3-cd)pyrene 1.80E-06 1.76E-09 4.41E-08 1.93E-07 Match
Naphthalene 6.10E-04 5.98E-07 1.50E-05 6.55E-05
Phenanathrene 1.70E-05 1.67E-08 4.17E-07 1.83E-06 Match
Pyrene 5.00E-06 4.90E-09 1.23E-07 5.37E-07 Match
Toluene 3.40E-03 3.33E-06 8.33E-05 3.65E-04 Match
HAP - Metal Table 1.4-4 lb/10^6 scf lb/MMBtu lb/hr Ton/year Check
Arsenic 2.00E-04 1.96E-07 4.90E-06 2.15E-05 Match
Beryllium 1.20E-05 1.18E-08 2.94E-07 1.29E-06 Match
Cadmium 1.10E-03 1.08E-06 2.70E-05 1.18E-04 Match
Chromium 1.40E-03 1.37E-06 3.43E-05 1.50E-04 Match
Cobalt 8.40E-05 8.24E-08 2.06E-06 9.02E-06 Match
Manganese 3.80E-04 3.73E-07 9.31E-06 4.08E-05 Match
Mercury 2.60E-04 2.55E-07 6.37E-06 2.79E-05
Nickel 2.10E-03 2.06E-06 5.15E-05 2.25E-04 Match
Selenium 2.40E-05 2.35E-08 5.88E-07 2.58E-06 Match
Total HAP Total HAP lb/hr Ton/year Check
0.05 0.20 Match
ppm to lb/MMBtu Conversion.
Source: AQMD Permit Sample Evaluation Natural Gas Fired Boiler 5-20 MMBTU/HR, 2007
Nox Molecular Weight 46.1 lb/lb-mole
CO Molecular Weight 28.01 lb/lb-mole
Concentration lb/MMBtu lb/hr Ton/year Check
Nox 0 0 0.00 0.00
CO 0 0 0.00 0.00
AP-42 Table 1.4-3
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
Page 1 of Version 1.0 November 29, 2018
Equipment Details
Rating 381 hp = (284.4 kw)
Operational Hours 1,000 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 0.3 0.25 0.13
CO 2.6 2.18 1.09
PM10 0.02 0.02 0.01
PM2.5 0.02 0.02 0.01
VOC 0.14 0.12 0.06SO21.21E-05 0.00 0.00 AP-42 Table 3.4-1
HAP 0.01 0.01 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferenceCO2 (mass basis)1 1.15E+00 438 219
Methane (mass basis)25 0 0CO2e219
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 9.33E-04 2.49E-03 1.24E-03
Toluene 4.09E-04 1.09E-03 5.45E-04
Xylenes 2.85E-04 7.60E-04 3.80E-04
1,3-Butadiene 3.91E-05 1.04E-04 5.21E-05
Formaldehyde 1.18E-03 3.15E-03 1.57E-03
Acetaldehyde 7.67E-04 2.05E-03 1.02E-03
Acrolein 9.25E-05 2.47E-04 1.23E-04
Naphthalene 8.48E-05 2.26E-04 1.13E-04
Acenaphthylene 5.06E-06 1.35E-05 6.75E-06
Acenaphthene 1.42E-06 3.79E-06 1.89E-06
Fluorene 2.92E-05 7.79E-05 3.89E-05
Phenanthrene 2.94E-05 7.84E-05 3.92E-05
Anthracene 1.87E-06 4.99E-06 2.49E-06
Fluoranthene 7.61E-06 2.03E-05 1.01E-05
Pyrene 4.78E-06 1.27E-05 6.37E-06
Benz(a)anthracene 1.68E-06 4.48E-06 2.24E-06
Chrysene 3.53E-07 9.41E-07 4.71E-07
Benzo(b)fluoranthene 9.91E-08 2.64E-07 1.32E-07
Benzo(k)fluoranthene 1.55E-07 4.13E-07 2.07E-07
Benzo(a)pyrene 1.88E-07 5.01E-07 2.51E-07
Indeno(1,2,3-cd)pyrene 3.75E-07 1.00E-06 5.00E-07
Dibenz(a,h)anthracene 5.83E-07 1.55E-06 7.77E-07
Benzo(g,h,l)perylene 4.89E-07 1.30E-06 6.52E-07
AP-42 Table 3.3-1
& Table 3.4-1
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.)
Jaw Crusher Diesel-Fired Engine **Tier 4f, 2021
Emergency Engines should
equal 100 hours of
operation per year
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
Page 2 of Version 1.1 February 21, 2019
Equipment Details
Rating 776 hp = (579.2 kw)
Operational Hours 1,500 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 0.5 0.86 0.64
CO 2.6 4.45 3.34
PM10 0.22 0.38 0.28
PM2.5 0.22 0.38 0.28
VOC 0.14 0.24 0.18SO21.21E-05 0.01 0.01 AP-42 Table 3.4-1
HAP 0.01 0.01 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferenceCO2 (mass basis)1 1.16 900 675
Methane (mass basis)25 6.35E-05 0 0CO2e676
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 7.76E-04 4.22E-03 3.16E-03
Toluene 2.81E-04 1.53E-03 1.14E-03
Xylenes 1.93E-04 1.05E-03 7.86E-04
Formaldehyde 7.89E-05 4.29E-04 3.21E-04
Acetaldehyde 2.52E-05 1.37E-04 1.03E-04
Acrolein 7.88E-06 4.28E-05 3.21E-05
Naphthalene 1.30E-04 7.06E-04 5.30E-04
Acenaphthylene 9.23E-06 5.01E-05 3.76E-05
Acenaphthene 4.68E-06 2.54E-05 1.91E-05
Fluorene 1.28E-05 6.95E-05 5.21E-05
Phenanthrene 4.08E-05 2.22E-04 1.66E-04
Anthracene 1.23E-06 6.68E-06 5.01E-06
Fluoranthene 4.03E-06 2.19E-05 1.64E-05
Pyrene 3.71E-06 2.02E-05 1.51E-05
Benz(a)anthracene 6.22E-07 3.38E-06 2.53E-06
Chrysene 1.53E-06 8.31E-06 6.23E-06
Benzo(b)fluoranthene 1.11E-06 6.03E-06 4.52E-06
Benzo(k)fluoranthene 2.18E-07 1.18E-06 8.88E-07
Benzo(a)pyrene 2.57E-07 1.40E-06 1.05E-06
Indeno(1,2,3-cd)pyrene 4.14E-07 2.25E-06 1.69E-06
Dibenz(a,h)anthracene 3.46E-07 1.88E-06 1.41E-06
Benzo(g,h,l)perylene 5.56E-07 3.02E-06 2.27E-06
AP-42 Table 3.3-1
& Table 3.4-1
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
Page 3 of Version 1.1 February 21, 2019
Equipment Details
Rating 50 hp = (37.4 kw)
Operational Hours 1,000 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 3.5 0.39 0.19
CO 3.7 0.41 0.20
PM10 0.00 7.00E-04 0.00 0.00
PM2.5 0.00 7.00E-04 0.00 0.00
VOC 0.00 6.42E-04 0.00 0.00SO21.21E-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)ReferenceCO2 (mass basis)1 1.15E+00 58 29
Methane (mass basis)25 0 0CO2e29
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 9.33E-04 3.27E-04 1.63E-04
Toluene 4.09E-04 1.43E-04 7.16E-05
Xylenes 2.85E-04 9.98E-05 4.99E-05
1,3-Butadiene 3.91E-05 1.37E-05 6.84E-06
Formaldehyde 1.18E-03 4.13E-04 2.07E-04
Acetaldehyde 7.67E-04 2.68E-04 1.34E-04
Acrolein 9.25E-05 3.24E-05 1.62E-05
Naphthalene 8.48E-05 2.97E-05 1.48E-05
Acenaphthylene 5.06E-06 1.77E-06 8.86E-07
Acenaphthene 1.42E-06 4.97E-07 2.49E-07
Fluorene 2.92E-05 1.02E-05 5.11E-06
Phenanthrene 2.94E-05 1.03E-05 5.15E-06
Anthracene 1.87E-06 6.55E-07 3.27E-07
Fluoranthene 7.61E-06 2.66E-06 1.33E-06
Pyrene 4.78E-06 1.67E-06 8.37E-07
Benz(a)anthracene 1.68E-06 5.88E-07 2.94E-07
Chrysene 3.53E-07 1.24E-07 6.18E-08
Benzo(b)fluoranthene 9.91E-08 3.47E-08 1.73E-08
Benzo(k)fluoranthene 1.55E-07 5.43E-08 2.71E-08
Benzo(a)pyrene 1.88E-07 6.58E-08 3.29E-08
Indeno(1,2,3-cd)pyrene 3.75E-07 1.31E-07 6.56E-08
Dibenz(a,h)anthracene 5.83E-07 2.04E-07 1.02E-07
Benzo(g,h,l)perylene 4.89E-07 1.71E-07 8.56E-08
AP-42 Table 3.3-1
& Table 3.4-1
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 - Stacker Belt
Emergency Engines should
equal 100 hours of
operation per year
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
Page 4 of Version 1.1 February 21, 2019
Production Rates
Hourly Rates 200 tons/hour
Annual Production 100,000 tons/year
Variables
Number of Transfer Points 2
Mean Wind Speed 10 mph
Moisture Content 4 %
Pollutant
Emission
Factor
(lb/ton)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM100.00104 0.42 0.10
PM2.5 0.00016 0.06 0.02
Material Handling
AP-42 13.2.4.3
Equation #1
Page 5 of Version 1.0 November 29, 2018
Production Rates
Hourly Rates 200 tons/hour
Annual Production 100,000 tons/year
Emission Unit
Number of
Emission
Units
PM10
Emission
Factor
(lb/ton)
PM2.5
Emission
Factor
(lb/ton)Reference
Crushers 1 0.00054 0.00010
Screens 1 0.00074 0.00005
Conveyor Transfer Points 6 4.6E-05 1.3E-05
Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)PM10 0.31 0.08
PM2.5 0.05 0.01
Emission Unit
PM10
Emission
Rate
(lbs/hr)
PM10
Emission
Total
(tons/year)
PM2.5
Emission
Rate
(lbs/hr)
PM2.5 Emission
Total
(tons/year)
Crushers 0.11 0.03 0.02 0.01
Screens 0.15 0.04 0.01 0.00
Conveyors 0.06 0.01 0.02 0.00
Aggregate Processing Equipment
AP-42
Table 11.19.2-2
Page 6 of Version 1.0 November 29, 2018
Production Rates
Hourly Rates 200 tons/hour
Annual Production 100,000 tons/year
Truck Information
Empty Truck Weight 20 tons
Weight of Load 40 tons
Loaded Truck Weight 60 tons
Haul Road Information
Haul Road One-Way Length 2,000 feet
Hourly Vehicle Miles Traveled 3.8 miles
Annual Vehicle Miles Traveled 1,894 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM102.11 0.63 2.40 0.60
PM2.5 0.211 0.063 0.24 0.06
Haul Roads
Basic Watering - (70% control)
AP-42 13.2.2 & DAQ
Haul Road Guidance
Page 7 of Version 1.0 November 29, 2018
Production Rates
Hourly Rates 200 tons/hour
Annual Production 100,000 tons/year
Loader Information
Empty Loader Weight 20 tons
Weight of Load 10 tons
Loaded Loader Weight 30 tons
Loader Route\ Information
Loader Route One-Way Length 500 feet
Hourly Vehicle Miles Traveled 3.8 miles
Annual Vehicle Miles Traveled 1,894 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM101.71 0.51 1.94 0.49
PM2.5 0.171 0.051 0.19 0.05
Loader Routes
Basic Watering - (70% control)
AP-42 13.2.2 & DAQ
Haul Road Guidance
Page 8 of Version 1.0 November 29, 2018
Storage Pile Area
Total Area of Storage Piles 2 acres
Control EfficiencyPM10 Control Efficiency 66%
PM2.5 Control Efficiency 40%
Pollutant
Uncontrolled
Emission
Factor
(lb/acre-day)
Controlled
Emission
Factor
(lb/acre-day)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM106.30 2.14 0.18 0.78 AP-42 Fourth Edition Table 8.19.1-1PM2.5 1.85 1.11 0.09 0.41 AP-42 Appendix B.2 Table B.2-2
Storage Piles
Reference
AP-42 Appendix B.2
Tables B.2-2 & B.2-3
Page 9 of Version 1.0 November 29, 2018
Wind Erosion of Exposed Area
Total Area of Disturbed Ground 3 acres
Emission Factors & Distribution
TSP Emission Factor 0.38PM10 Content 50%
PM2.5 Content 7.5%
Pollutant
Emission
Factor
(tons/acre-year)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)PM10 0.19 0.13 0.57
PM2.5 0.03 0.02 0.09
Disturbed Ground
Reference
AP-42 Table 11.9-4
AP-42 Section 13.2.5.3
Page 10 of Version 1.1 September 4, 2019
Bulldozer Hours of Operation
Hours operated per year 1,500 hours/year
Variables for Bulldozing Overburden
Material Silt Content 6.9 %
Material Moisture Content 7.9 %
Pollutant
Emission
Factor
(lb/hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM100.75276 0.75 0.56
PM2.5 0.41378 0.41 0.31
Bulldozing
AP-42 11.9
Table 11.9-1
Page 11 of Version 1.0 November 29, 2018
Criteria EmissionNOX0.77
CO 4.43PM103.47
PM2.5 1.23
VOC 0.24SO20.01
HAP 0.01
Production Rates
Hourly Rates 200 tons/hour
Annual Production 100,000 tons/year
Truck Information
Empty Truck Weight 20 tons
Weight of Load 40 tons
Loaded Truck Weight 60 tons
Haul Road Information
Haul Road One-Way Length 2,000 feet
Hourly Vehicle Miles Traveled 3.8 miles
Annual Vehicle Miles Traveled 1,894 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year) Reference
PM10 2.11 0.63 2.40 0.60
PM2.5 0.211 0.063 0.24 0.06
Haul Roads
AP-42 13.2.2 & DAQ
Haul Road Guidance
Basic Watering - (70% control)
Page 1 of 1
Version 1.0
November 29, 2018
Response Summary:
To be eligible businesses shall not do any of the follow:

1) Emit more than 5 tons per year of each of the following pollutants: Sulfur Dioxide (SO2), Carbon Monoxide (CO),
Nitrogen Oxides (NOx), Particulate Matter (PM10), Ozone (O3), or Volatile Organic Compounds (VOCs).
2) Emit more than 500 lbs/yr of any single Hazardous Air Pollutant (HAP), and emit more than 2000 lbs/yr of any
combination of HAPs
3) Emit less than 500 lbs/yr of any combination of air contaminants not listed in 1 or 2

A copy of this registration notice and worksheets are required on site to verify permit exemption status.

Please be aware a the Small Source Exemption ONLY exempts the site from the air permitting requirements of R307-
401-5 thru R307-401-8 of the Utah Administrative Code, all other air quality regulations still apply.

Q4.
Please fill out the following contact information:
Site Contact Site Owner
Name Val Rees LeGrand Johnson
Blanding Pit Harward and Rees
Mailing Address PO BOx 279 one mile north of blanding PO Box 279
Mailing Address
2 169 South Main North on MP 53.5 169 South Main
City Loa Blanding Loa
State UT UT UT
Zip Code 84747 84511 84747
Phone [phone]-2075
Fax [phone]-2384
Email [e-mail] [e-mail] [e-mail]

Q5. County the Site is located in:
San Juan County

Q6. Briefly describe the process including the end products, raw materials, and process equipment used.
Harward and Rees operates a mobile crushing operation at multiple locations in Southern Utah. We move the crushing
equipment from location to location as needed. We generally produce roadway aggregates, UBC, granular borrow,
road chips, driveway rock etc. This pit will be located at LeGrand Johnson Blanding Pit address is one mile north of
Blanding turn north on 1970 East Grayson Parkway (MP 53.5) travel north east for one mile to LeGrand Johnson
Gravel Pit.

Q7. List emission units
Material Handling, Aggregate Processing Equipment, Diesel-Fired Engines (jaw crusher), Diesel-Fired Engines
(stacker belt), Diesel-Fired Engines (570 KW Generator

Q8. List any pollution control equipment
Water Truck

Q9. Please include Annual Emission Rates calculation spreadsheet.
[Click here]

Q11. Contact Information: (person filling out form - signature will be required)
Name Rachelle Williams
Title Sec/Treas
Phone [phone]
Date January 18, 2024

Q10. By signing below, I hereby certify that the information and data submitted in this notice fully describes
this site and ONLY this site. The information provide is true, accurate, and complete to the best of my
knowledge. I understand that I am responsible for determining whether the site remain eligible for this
exemption before making operational or process changes in the future, and agree to notify the Division of
Air Quality when this site is not longer eligible for this exemption. (Signature of Owner/Manager)
[Click here]

Embedded Data:
N/A
Storage Pile Area
Total Area of Storage Piles 2 acres
Control Efficiency
PM10 Control Efficiency 66%
PM2.5 Control Efficiency 40%
Pollutant
Uncontrolled
Emission
Factor
(lb/acre-day)
Controlled
Emission
Factor
(lb/acre-day)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year) Reference
PM10 6.30 2.14 0.18 0.78 AP-42 Fourth Edition Table 8.19.1-1
PM2.5 1.85 1.11 0.09 0.41 AP-42 Appendix B.2 Table B.2-2
Storage Piles
AP-42 Appendix B.2
Tables B.2-2 & B.2-3
Reference
Page 1 of 1
Version 1.0
November 29, 2018