DAQ-2024-008176

1

DAQC-459-24
Site ID 10407 (B4)
MEMORANDUM

TO: STACK TEST FILE – GRANITE CONSTRUCTION COMPANY – Cottonwood
Facility – Salt Lake County

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

FROM: Kyle Greenberg, Environmental Scientist

DATE: May 14, 2024

SUBJECT: Source: BMG 45 R 30 Drum Mix Asphalt Plant
Location: Salt Lake City, Salt Lake County, UT
Contact: Quinten Bingham: 801-526-6050
Tester: TETCO
Permit/AO #: DAQE-AN104070026-22, dated December 12, 2022
Subject: Review of Pretest Protocol dated May 10, 2024

On May 10, 2024, DAQ received a protocol for testing of the BMG 45 R 30 Drum Mix Asphalt Plant at
the Granite Construction Company Cottonwood Facility in Salt Lake County, UT. Testing will be
performed July 15-17, 2024, to determine compliance with emission limits found in Condition II.B.2 of
DAQE-AN104070026-22.

PROTOCOL CONDITIONS:

1. RM 1 used to determine sample velocity traverses: OK
2. RM 2 used to determine stack gas velocity and volumetric flow rate: OK
3. RM 3 used to determine dry molecular weight of the gas stream: OK
4. RM 4 used to determine moisture content: OK
5. RM 201A used to determine particulate emissions/PM10: OK
6. RM 202 used to determine condensable particulate matter: OK

DEVIATIONS: None.

CONCLUSION: The protocol appears to be acceptable.

2

RECOMMENDATION: The methods proposed in the pretest protocol are sufficient to
determine particulate matter emissions from BMG 45 R 30
Drum Mix Asphalt Plant. It is recommended that the pretest
protocol be determined as acceptable.

ATTACHMENTS: Granite Construction Company’s Emission Testing Notification
and Pretest Protocol

1
COMPLIANCE EMISSION TESTING PROTOCOL
GRANITE CONSTRUCTION COMPANY
BMG SINGLE DRUM ASPHALT PLANT BAGHOUSE EXHAUST
COTTONWOOD FACILITY

Project Organization and Responsibility

The following personnel and the testing contractor are presently anticipated to be involved in the
testing program. The Utah Department of Environmental Quality (UDEQ) may have their own
personnel to observe all phases including the process.

Company Contacts
Granite Construction Company Quinten Bingham [phone]
1000 North Warm Springs Road
Salt Lake City, UT 84116

Test Contractor:
TETCO Dean Kitchen [phone]
391 East 620 South
American Fork, UT 84003

Facility Location

The facility is located at 6900 South Wasatch Blvd, Salt Lake City. The source to be tested is the
BMG Single Drum Asphalt Plant Baghouse exhaust.

Test Purpose and Methods Applied

This test will be conducted to determine compliance with the PM10 emission limits for Granite
Construction=s BMG asphalt plant baghouse exhaust as established in the facility=s Utah
Department of Environmental Quality, Division of Air Quality Approval Order
DAQE-AN104070026-22.

Testing procedures will include accumulating process and production data as well as testing for
PM10 particulate matter using EPA Method 201A. Condensable particulate matter (CPM) will be
measured according to EPA Method 202 for the back-half catch. CPM shall not be used for
compliance demonstration but shall be used for inventory purposes.

2
Test Date and Time

It is planned to complete all testing July 15-17, 2024. It is anticipated that the test crew will
arrive, set up the test equipment, and begin testing July 15th and continue as needed.

Operational Data and Instrumentation

Copies of all operational and instrumentation data will be made available to agency personnel.
Production will be monitored and recorded by Granite Construction personnel. Asphalt
production, pressure drop, and percent recycle (if any) will be recorded during the test.

Access to Sample Site

The sample site is accessed by man-lift.

Potential Hazards

Moving Equipment - Yes
Hot Equipment - Yes
Chemical - No

Test Site

See Appendix A for a stack diagram.

Estimates of Test Parameters

Stack flow 25,000 dscfm
Moisture 22-30%
Stack Temperature 250 F

Test Procedures

PM10 Measurements

The following are the procedures that TETCO will follow for the Method 201A and 202
compliance tests:

1. The stack diameter is 49 1/2 inches. The sample ports are located approximately 17 feet

3
downstream and 3 1/3 feet upstream from any flow disturbance. The number of sample
points will be twelve (six per port) for Method 201A.

2. EPA Method 2 will be used to determine the gas stream velocity. The type "S" pitot tubes
will be used with a Cp factor of 0.84. Dual inclined/vertical manometers with graduations
in .01 of an inch of water will be used. Direction of gas flow will be checked for gas
cyclonics prior to testing.

3. EPA Method 3 will be used to determine the gas stream dry molecular weight. A sample
will be collected in a gas bag and will be analyzed by Orsat at the test=s conclusion. The
gas sample will be taken immediately following the console critical orifice.

4. EPA Method 4 will be used to determine the gas stream moisture content.

5. EPA Method 201A will be used to measure the PM10 particulate matter emission rate.
Target sample run time will be at least 60-minutes; however, actual run time will be
determined by the exhaust conditions at the time of the test.

6. The glass fiber filters that will be used meet the specifications required of the method.

7. The probe liners will be borosilicate glass, quartz, or Teflon.

8. EPA Method 202 will be used to measure condensible emissions in the back-half
catch.

9. The barometric pressure will be measured with a barometer which is periodically checked
against a mercury barometer. The barometer will be checked prior to testing to assure an
accurate barometric pressure.

10. Current calibration data is submitted with this protocol. Nozzle calibration which will be
done at the test site. Nozzle calibration will be included on the first page of each set of run
sheets for each respective test run. Any calibration that is not current will be re-calibrated
prior to the test dates.

11. Any necessary preparation and clean-up by the contractor will be performed in the
contractor's sampling trailer or a clean area on Granite Construction Company=s property.
The laboratory work and analysis will be done by the contractor as soon as possible after
the test project at 391East 620 South, American Fork, Utah.

Quality Assurance

All testing and analysis in these tests will be conducted according to Methods 201A and 202 and
appropriate sections of the EPA Quality Assurance Handbook for Air Pollution Measurement
Systems Volume III.

4

Reporting

Reporting will be prepared by the testing contractor according to EPA Quality Assurance
Guidelines. Complete copies of raw data, calculations and summary of test will be included in the
test report. All process and production data will be recorded and retained for inspection and
copying by UDEQ. The reports will be submitted to UDEQ within 30 days following completion
of the test.

5
Appendix A

Stack Schematic

Facility:
Stack Identification:

Granite Construction Company, Cottonwood Facility
a: Distance upstream from next disturbance, feet
b: Distance downstream from last disturbance, inches
~30g: Distance of Sample Level to Ground, feet
22-30%
BMG Asphalt Plant Baghouse Exhaust
17'
40"
Drum Asphalt DryerType:
Number of Ports
Process
Type:
Control Unit
2
Estimated Temperature, oF
Estimated Velocity, fpm
49 1/2"
Baghouse
 Stack Inside Diameter, inches
Estimated Moisture, percent
250
4,000
a
g
b
Figure 1. Facility Schematic Representation

6
Appendix B

Calibration Data
METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES
1) Select three critical orifices to calibrate the dry gas meter which bracket the expected operating range.
2) Record barometric pressure before and after calibration procedure.
3) Run at tested vacuum (from Orifice Calibration Report), for a period of time
necessary to achieve a minimum total volume of 5 cubic feet.
4) Record data and information in the GREEN cells, YELLOW cells are calculated.
TECHNICIAN:INITIAL FINAL AVG (Pbar)
DATE:12/19/2022 METER SERIAL #:27863 BAROMETRIC PRESSURE (in Hg):25.35 25.35 25.35 IF Y VARIATION EXCEEDS 2.00%,
METER PART #:Console 4 CRITICAL ORIFICE SET SERIAL #:1453S EQUIPMENT ID #:ORIFICE SHOULD BE RECALIBRATED
K'TESTED TEMPERATURES °F ELAPSED
FACTOR VACUUM DGM READINGS (FT3)AMBIENT DGM INLET DGM OUTLET DGM TIME (MIN)DGM DH (1)(2)(3)Y
ORIFICE #RUN #(AVG)(in Hg)INITIAL FINAL NET (Vm)INITIAL FINAL INITIAL FINAL AVG q (in H2O)Vm (STD)Vcr (STD)Y VARIATION (%)DH@
1 0.8137 11 832.125 842.747 10.622 71 72 88 69 71 75.0 10.00 3.20 8.9659 8.9541 0.999 1.895
2 0.8137 11 842.747 853.441 10.694 71 84 85 71 74 78.5 10.00 3.20 8.9680 8.9541 0.998 1.883
3 0.8137 11 853.441 864.062 10.621 71 84 82 74 74 78.5 10.00 3.20 8.9067 8.9541 1.005 1.883
AVG = 1.001 0.31
1 0.5317 13 806.381 813.332 6.951 71 78 77 71 72 74.5 10.00 1.20 5.8390 5.8509 1.002 1.656
2 0.5317 13 813.332 820.303 6.971 71 77 78 71 71 74.3 10.00 1.20 5.8585 5.8509 0.999 1.657
3 0.5317 13 820.303 827.282 6.979 71 75 78 71 72 74.0 10.00 1.20 5.8680 5.8509 0.997 1.658
AVG = 0.999 0.15
1 0.3307 13 892.625 897.750 5.125 68 73 72 70 70 71.3 11.76 0.45 4.3221 4.2917 0.993 1.603
2 0.3307 13 897.750 903.142 5.392 68 72 72 70 70 71.0 12.38 0.45 4.5494 4.5180 0.993 1.604
3 0.3307 13 903.142 908.557 5.415 68 72 73 70 70 71.3 12.43 0.45 4.5666 4.5362 0.993 1.603
AVG = 0.993 -0.46
AVERAGE DRY GAS METER CALIBRATION FACTOR, Y = 0.998
AVERAGE DH@ = 1.716
(1)=Net volume of gas sample passed through DGM, corrected to standard conditions
K1 =17.64 oR/in. Hg (English), 0.3858 oK/mm Hg (Metric)
Tm =Absolute DGM avg. temperature (oR - English, oK - Metric) DH@ = 0.75 q DH Vm(std)
Vcr(std) Vm
(2)=Volume of gas sample passed through the critical orifice, corrected to standard conditions
Tamb =Absolute ambient temperature (oR - English, oK - Metric)
K' = Average K' factor from Critical Orifice Calibration REFERENCE IN OUT
(3)=DGM calibration factor 32 33 32
72 73 73
203 203 202
TEMPERATURE SENSORS oF
2024 Pre-Calibration
Console #4
30
19
12
Joseph Wells
ENVIRONMENTAL SUPPLY COMPANY
USING THE CRITICAL ORIFICES AS CALIBRATION STANDARDS:
The following equations are used to calculate the standard volumes of air passed through the DGM, V m (std), and the critical orifice,
Vcr (std), and the DGM calibration factor, Y. These equations are automatically calculated in the spreadsheet above.
()2 ()
Type S Pitot Tube Inspection Data
Date:Pitot Tube Identification:
Technician:
Dt=0.375 Is PA = PB ?
Is 1.05 • Dt  PA & PB  1.50 • Dt ?
PA = 0.476
PB =0.476
a1 < 10o a1 = o
a2 < 10o a2 = o
b1 < 5o b1 = o
b2 < 5o b2 = o
Z  0.125 in.Z = in.
W W  0.03125 in.W = in.
W > 3 inches W = in.
Z > 3/4 inch Z = in.
Y ≥ 3 inches Y = in.
The pitot tube meets the specifications for a calibration factor of 0.84?Yes
Reference:
Temperature
Source Reference Sensor
(Medium)(oF)(oF)
Probe AIR 63 62
AIR 64 62
ICE WATER 33 34
BOIL WATER 204 204
SILICONE OIL
1/16/2024 51 G
M. McNamara
in.
0.002
2
0
1
1
1
in.
in.
Yes
Yes
0.004
5
1
3 1/2
Heat Check 248
Temperature Sensor Calibration
2
1
0Stack
Omega CL3512A
Probe Yes
Yes
Continuity Check
Temperature Temperature
Difference
(oF)
b2
b1
B
A
w
Dt
PA
PB
Stack Emission Analysis 391 E 620 S, American Fork, UT 84003
Accurate ● Reliable ● Qualified 801-492-9106
Standard Pitot ID:Date:
Cp(std):Technician:
Tunnel Diameter (Round):Pb (in. Hg):
Leak check completed:Temperature (°F):
Side A
Test #
ΔPstd (in.
H2O)
ΔPs
(in. H2O)Cp(s)Deviation
1 0.54 0.89 0.773 0.005
2 0.53 0.89 0.764 -0.005
3 0.53 0.88 0.768 0.000
Cp(A)0.769 0.0000
Average Deviation 0.0032
Average Deviation must be <= 0.01
Calibrations were completed according to CFR 40, Part 60, Appendix A, Method 2, Section 10.
Calibrations were completed with an Environmental Supply PM10 cyclone.
30.0''25.33
Yes 53
P-785 3000 ft/min 0.769
51G1 3/26/24
0.99 Mike McNamara
TETCO
Pitot Tube Wind Tunnel Calibration PM10 2024
S-Type Pitot ID Test Velocity Cp(average)
𝐶𝑜(𝑟)=𝐶𝑜(𝑟𝑟𝑑)
Δ𝑝𝑟𝑟𝑑
Δ𝑝𝑟
Deviation =𝐶𝑜𝑟−ҧ𝐶(𝐴𝑜𝑟𝐴)
𝐶𝑜(𝐴)=ҧ𝐶𝑜𝑟for Side A 𝐶𝑜(𝐴)=ҧ𝐶𝑜𝑟for Side B
Date:1/2/24 Calibrator:Reference:
Temperature Temperature
Source Difference
(Medium)(oF)
Water 0
Water -2
Water 0
Water -2
Water 0
Water -1
Water 0
Water -2
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water -1
Water 0
Water -1
Water 0
Water 0
Water 0
Water 0
Water 0
Water -1
Water 0
Water -1
Water 0
Water 0
Water 1
Water 0
Water 0
Water -2
Water 0
Water -1
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
Water 0
202
33 33
Impinger Out K 33 33
203 203
33 33
Impinger Out J
Impinger Out H
Impinger Out I
33
203
33
203
33
203
33
203
203
201
33
G
H
Oven (3)33 33
203 203
Oven (4)33
203
Oven 33 33
203 203
Oven 33 33
33
203 202
Oven (3)
A
201203
33
Oven (3)33 33
Oven (4)
Thermocouple
Location
203 201
Impinger Out F 33 33
203
203
203
203 202
203 203
33
33
Impinger Out G
203 201
Oven (3)33
203 203
33 33
203Oven (4)
203
Impinger Out D 33 33
203 203
Impinger Out E 33 34
203 203
203
33 33
203Impinger Out B
Impinger Out C 33 33
203 202
202
Impinger Out A 33 33
203
Oven (3)
Oven (4)
TETCO
Sample Box Temperature Sensor Calibration
B
C 203 203
33 33
33 33
203
33 33
Xuan N. Dang Omega CL3512A
Unit ID Reference
(oF)
Sensor
(oF)
Temperature
33
D
E
Oven 33 33
203 202F
Oven (4)
Balance Denver Instruments, Model A-250, SN B045284
Weights Used Troemner Weight Set,
SN 98-115146
Certified Weight Measured Weight Difference
grams grams grams
0.1000 0.1000 0.0000
0.5000 0.5000 0.0000
1.0000 1.0000 0.0000
10.0000 10.0000 0.0000
50.0000 50.0001 -0.0001
100.0000 100.0000 0.0000
120.0000 120.0001 -0.0001
150.0000 150.0000 0.0000
Technician Michael McNamara
TETCO
Annual Balance Calibration Check
Date 1/23/24