DAQ-2025-000883

Rio Tinto Kennecott Utah Copper,LLC
4700 Daybreak Parkway
South Jordan, Utah 84009
Tel: [phone]

Attn: Mr. Conner Kijowski

RE: Kennecott Utah Copper, Bingham Canyon Mine
DAQE-AN105710047-21
Quarterly Ambient Data Report – 4th Quarter 2024

Dear Mr. Bird,

In accordance with requirements in Approval Order (AO) DAQE-AN105710047-
21, Condition II.B.4.f, Kennecott Utah Copper LLC is hereby submitting the
Ambient Data Report for the fourth Quarter of 2024.

If you have any questions or concerns please contact me or Sean Daly at 801-
204-2563.

Yours sincerely,

Brendan Murphy
General Manager – Minerals
Mr. Bryce Bird - Director
Department of Environmental Quality
Division of Air Quality
P.O Box 144820
Salt Lake City, Utah 84114-4820
Date
10 February 2025

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SUMMARY OF PM10 AND
METEOROLOGICAL DATA FROM
RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
FOURTH QUARTER 2024

Rio Tinto Kennecott

Prepared By:

TRINITY CONSULTANTS
4525 Wasatch Blvd.
Suite 200
Salt Lake City, Utah
801-272-3000

February 2025

Project 244501.0030

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TABLE OF CONTENTS
1.0 INTRODUCTION 1-1
1.1 Monitoring Station Description ................................................................................. 1-1
1.2 Data Acquisition ........................................................................................................ 1-4
2.0 DATA SUMMARY 2-1
2.1 Copperton C3 PM10 and Meteorological Data ........................................................... 2-1
2.1.1 Copperton C3 PM10 ...................................................................................................... 2-1
2.1.2 Copperton C3 Wind Speed and Horizontal Wind Direction ............................................... 2-3
2.1.3 Temperature ............................................................................................................... 2-5
2.2 Hi-Country PM10 and Meteorological Data ................................................................ 2-5
2.2.1 Hi-Country PM10........................................................................................................... 2-6
2.2.2 Wind Speed and Horizontal Wind Direction .................................................................... 2-7
2.2.3 Temperature ............................................................................................................. 2-10
2.3 Data Recovery......................................................................................................... 2-10
3.0 QUALITY CONTROL AND QUALITY ASSURANCE 3-1
3.1 Visual Inspection of Equipment ................................................................................ 3-1
3.2 Equipment Calibration .............................................................................................. 3-1
3.3 PM10 Flow Checks ..................................................................................................... 3-1
3.4 Arithmetic and Geometric Mean ............................................................................... 3-3
3.5 Statistics for PM10 Checks ......................................................................................... 3-3
3.6 Quality Assurance Audits .......................................................................................... 3-4
APPENDIX A: HOURLY WIND DATA FOR FOURTH QUARTER 2024 A
APPENDIX B: HOURLY TEMPERATURE DATA FOR FOURTH QUARTER 2024 B
APPENDIX C: EQUIPMENT CALIBRATIONS FOR FOURTH QUARTER 2024 D
APPENDIX D: PM10 MONTHLY FLOW CHECKS FOR FOURTH QUARTER 2024 E
APPENDIX E: PERFORMANCE AUDIT REPORT FOURTH QUARTER 2024 F
List of Figures
Figure 1.1 Location of Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring Stations 1-2
Figure 1.2 Photograph of Copperton C3 Monitoring Station 1-2
Figure 1.3 Photograph of Hi-Country Monitoring Station 1-3
Figure 2.1 Wind Rose for October 2024 – Copperton C3 2-3
Figure 2.2 Wind Rose for November 2024 – Copperton C3 2-4
Figure 2.3 Wind Rose for December 2024 – Copperton C3 2-4
Figure 2.4 Wind Rose for Fourth Quarter (October - December) 2024 – Copperton C3 2-5
Figure 2.5 Wind Rose for October 2024 – Hi-Country 2-8
Figure 2.6 Wind Rose for November 2024 - Hi-Country 2-8
Figure 2.7 Wind Rose for December 2024 – Hi-Country 2-9
Figure 2.8 Wind Rose for Fourth Quarter (October - December) 2024 – Hi-Country 2-9

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List of Tables
Table 1-1 Instrumentation at Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring Stations 1-4
Table 2-1 PM10 Concentration Results for Copperton C3 Monitoring Station in Micrograms per Cubic Meter
Fourth Quarter 2024 2-2
Table 2-2 High and Second-High 24-Hour PM10 Concentrations – Copperton C3 2-2
Table 2-3 Summary of Temperature in Degrees Fahrenheit (°F) for Fourth Quarter 2024 – Copperton C3 2-5
Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per Cubic Meter
Fourth quarter 2024 2-6
Table 2-5 High and Second-High 24-Hour PM10 Concentrations – Hi-Country 2-7
Table 2-6 Summary of Temperature in Degrees Fahrenheit (°F) for Fourth Quarter 2024 – Hi- Country 2-10
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Fourth Quarter 2024 2-10
Table 2-8 Data Recovery in Percent for PM10 for Fourth Quarter 2024 2-10
Table 3-1 Fourth Quarter PM10 Monthly Flow Check Results 3-2
Table 3-2 Arithmetic and Geometric Means – Fourth Quarter 2024 3-3
Table 3-3 Fourth Quarter 2024 Bias Statistics for PM10 Samplers 3-4
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1.0 INTRODUCTION
This fourth quarter 2024 data report, prepared for Rio Tinto Kennecott by Trinity Consultants (Trinity),
summarizes the ambient particulate concentration data less than 10 microns in size (PM10) and
meteorological data collected at the Copperton C3 and Hi-Country monitoring stations. Condition
II.B.4.a of Rio Tinto Kennecott’s Bingham Canyon Mine (BCM) Approval Order (AO) requires that two
ambient monitoring stations be operated to measure PM10 until a minimum of 234,000,000 tons per
year (TPY) of material moved from the mine has been achieved. The purpose of the monitoring is to
measure PM10 concentrations in the vicinity of the mine and to maintain compliance with the National
Ambient Air Quality Standards (NAAQS) for 24-hour PM10.
1.1 Monitoring Station Description
PM10 measurements are collected every three days for 24 hours, midnight to midnight, in accordance
with US Environmental Protection Agency’s (EPA’s) three-day sampling schedule at the Copperton C3
and Hi-Country monitoring stations. The Copperton C3 monitoring station is located near the town of
Copperton, Utah. The Hi-Country monitoring station operates in the vicinity of one of the top five
highest modeled ground level PM10 concentrations.

A meteorological station is installed at the Copperton C3 PM10 station. This station collects continuous
measurements of wind speed, wind direction, temperature, relative humidity, and barometric
pressure. A 10-meter meteorological tower is also installed at the Hi-Country PM10 monitoring station
which collects continuous measurements of wind speed, wind direction, temperature, relative
humidity, and barometric pressure.

The latitude/longitude coordinates and elevations of the Copperton C3 and Hi-Country monitoring sites
are as follows:

Site Latitude
(decimal degrees)
Longitude
(decimal degrees)
Elevation
(feet)
Copperton C3 40.56265° -112.10257° 5,480
Hi-Country 40.50335° -112.10294° 6,003

Figure 1.1 presents a map showing the locations of Rio Tinto Kennecott’s Copperton and Hi-Country
monitoring stations relative to the mine. Photographs of the monitoring stations are presented in
Figures 1.2 and 1.3. The instrumentation that is installed at the Copperton and Hi-Country monitoring
sites is presented in Table 1-1.

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Figure 1.1 Location of Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring
Stations

Figure 1.2 Photograph of Copperton C3 Monitoring Station

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Figure 1.3 Photograph of Hi-Country Monitoring Station

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Table 1-1 Instrumentation at Rio Tinto Kennecott’s Copperton C3 and Hi-Country
Monitoring Stations
Parameter Equipment
Manufacturer
Model
Number Serial Number

Sample
ID
Copperton C3
PM10 Tisch Environmental VFC-G-Factor P7953 A
PM10 Tisch Environmental VFC-G-Factor P7958 B
PM10 Tisch Environmental VFC-G-Factor P7959 C
PM10 Tisch Environmental VFC-G-Factor P7954 D
PM10 Tisch Environmental VFC-G-Factor P7955 E
Wind Speed RM Young 05305-AQ 146853 NA
Wind Direction RM Young 05305-AQ 146853 NA
Temperature E+E Elektronic EE181-L 164016000096C7 NA
Data Acquisition Campbell Scientific CR1000x 14370 NA
Hi-Country
PM10 Tisch Environmental Model TE-6070V P8017 A
PM10 Tisch Environmental Model TE-6070V P8018 B
PM10 Tisch Environmental Model TE-6070V P8019 C
PM10 Tisch Environmental Model TE-6070V P8020 D
PM10 Tisch Environmental Model TE-6070V P8021 E
PM10 Tisch Environmental Model TE-6070V P8022 F
PM10 Tisch Environmental Model TE-6070V P8023 G
PM10 Tisch Environmental Model TE-6070V P8024 H
Wind Speed Met One 020C Y4271 NA
Wind Direction Met One 010C W4849 NA
Temperature E+E Elektronic EE181-L 192916000065B5 NA
Data Acquisition Campbell Scientific CR1000x 14844 NA
1.2 Data Acquisition
Campbell Scientific CR1000x data acquisition systems (DAS’s) at each monitoring station are used
record differential pressure readings from each PM10 sampler's transducer as one-minute averages.
Meteorological data are stored in the data logger as five-minute and hourly averages computed from
secondly values.

PM10 filter samples are collected every three days in accordance with US EPA’s sampling schedule.
High volume quartz filters are later processed by Rio Tinto Kennecott’s environmental laboratory to
determine filter weight and PM10 concentrations.

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2.0 DATA SUMMARY
This section of the report summarizes the data results and data recovery for October 1 through
December 31, 2024. Filter data as well as hourly meteorological data for the period are tabulated in
the appendices. These appendix tables display the meteorological hourly average of measurements
recorded in the hour "ending"; that is, the first hour of the day is labeled 01, meaning the hour
beginning at 00:00:01 and ending at 01:00:00 a.m. The second hour is labeled 02, meaning the values
collected from 01:00:01 a.m. to 02:00:00 a.m.
2.1 Copperton C3 PM10 and Meteorological Data

PM10 and meteorological data are collected at the Copperton C3 monitoring station. Summaries of
these data for the fourth quarter 2024 are presented below.
2.1.1 Copperton C3 PM10
Tisch Environmental Model VFC-G-Factor filter-based samplers are used to measure PM10 at the
Copperton C3 monitoring station. PM10 samples are exposed in accordance with EPA’s three-day
sampling schedule. The 8” x 10” quartz filters required for the samplers are obtained from Rio Tinto
Kennecott’s gravimetric laboratory.

Table 2-1 presents the PM10 concentration results, based on standard temperature and pressure (STP)
conditions, for the fourth quarter of 2024 for the Copperton monitoring site. Table 2-2 presents the
high and second-high 24-hour PM10 concentrations for the fourth quarter at Copperton C3.
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Table 2-1 PM10 Concentration Results for Copperton C3 Monitoring Station in Micrograms per
Cubic Meter Fourth Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
10/03/2024 40.7 1349.28
10/06/2024 13.8 1372.32
10/09/2024 57.4 1366.56
10/12/2024 46.9 1350.72
10/15/2024 47.8 1350.72
10/18/2024 7.6 1393.92
10/21/2024 15.6 1368.00
10/24/2024 25.9 1411.20
10/27/2024 23.0 1357.92
10/30/2024 10.5 1401.12
11/02/2024 9.3 1378.08
11/05/2024 13.9 1392.48
11/08/2024 38.9 1427.04
11/11/2024 17.4 1359.36
11/14/2024 26.4 1376.64
11/17/2024 16.0 1404.00
11/20/2024 20.0 1395.36
11/23/2024 27.8 1379.52
11/26/2024 6.3 1389.60
11/29/2024 57.7 1418.40
12/02/2024 57.3 1422.72
12/05/2024 67.5 1406.88
12/08/2024 22.4 1418.40
12/11/2024 40.1 1411.20
12/14/2024 11.3 1388.16
12/17/2024 12.2 1406.88
12/20/2024 39.6 1392.48
12/23/2024 28.3 1418.40
12/26/2024 4.4 1399.68
12/29/2024 10.5 1378.08
Table 2-2 High and Second-High 24-Hour PM10 Concentrations – Copperton C3
Number 24-hour Concentration
(μg/m3)
Date of Occurrence
1 67.5 December 5
2 57.7 November 29

There were no ambient PM10 samples greater than 135 ug/m3 and no exceedances of the NAAQS during any
24-hour sampling period during the quarter; thus, no laboratory filter analyses were conducted.

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There were no ambient PM10 samples greater than 135 ug/m3 and no exceedances of the NAAQS during any
24-hour sampling period during the quarter; thus, no laboratory filter analyses were conducted.

Meteorological data records from the Copperton C3 meteorological monitoring site include wind speed and
horizontal wind direction measured at 10 meters, ambient temperature, and relative humidity at 10 meters,
and barometric pressure at 1.5 meters.
2.1.2 Copperton C3 Wind Speed and Horizontal Wind Direction
The most frequent (and predominant) winds during the fourth quarter at Copperton C3 were from the west
followed by the southeast sector. Reported wind directions represent the directions from which the wind is
blowing.

Wind speed records show there were 1.2 percent calm winds during the fourth quarter of 2024. The
percentage of wind speeds that were not calm but were less than or equal to 10.8 meters per second (m/s)
or 24.2 miles per hour (mph) was 98.7 percent for the fourth quarter. There were 0.1 percent wind records
showing greater than 10.8 m/s during the fourth quarter. The sector with the highest average wind speed
was the southeast at 3.8 m/s. The maximum wind gust during the quarter was 22.2 m/s, which occurred on
December 27 at 18:00.

Figures 2.1 through 2.3 provide diagrams of the joint frequency of occurrence distributions (wind rose) of the
vector wind speed and wind direction by month for October through December 2024. Figure 2.4 presents the
wind rose for the fourth quarter 2024. Summary tables of hourly average wind direction and wind speed by
month for the fourth quarter are presented in Appendix A.
Figure 2.1 Wind Rose for October 2024 – Copperton C3

5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
October 2024
10-m Level
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Figure 2.2 Wind Rose for November 2024 – Copperton C3

Figure 2.3 Wind Rose for December 2024 – Copperton C3

4%
8%
12%
16%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
November 2024
10-m Level
5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
December 2024
10-m Level
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Figure 2.4 Wind Rose for Fourth Quarter (October - December) 2024 – Copperton C3

2.1.3 Temperature
Ambient daily mean temperatures during the fourth quarter ranged from a low of 24.3F in December to a
high of 74.5°F in October. The hourly minimum was 20.6F on December 31 at 08:00 and the hourly maximum
was 84.6°F which occurred on October 4 at 15:00. Fourth quarter data are summarized in Table 2-3. Hourly
averages of the temperature data by month for the fourth quarter are presented in Appendix B.
Table 2-3 Summary of Temperature in Degrees Fahrenheit (°F) for Fourth Quarter 2024 –
Copperton C3
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
October 58.7 74.5 34.1 84.6 30.4
November 36.9 52.3 26.8 62.2 23.0
December 35.9 45.1 24.3 53.9 20.6
Fourth Quarter 2024 43.8 74.5 24.3 84.6 20.6
2.2 Hi-Country PM10 and Meteorological Data
PM10 and meteorological data are collected at the Hi-Country monitoring station. Summaries of these data for
the fourth quarter 2024 are presented below.
4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
Quarter 4 2024
10-m Level
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2.2.1 Hi-Country PM10
Tisch Environmental Model TE-6070V filter-based samplers are used to measure PM10 at the Hi-Country
monitoring station. PM10 samples are exposed in accordance with EPA’s three-day sampling schedule. The 8”
x 10” quartz filters required for the samplers are obtained from Rio Tinto Kennecott’s gravimetric laboratory.
Table 2-4 presents the PM10 concentration results, based on standard temperature and pressure (STP)
conditions, for the fourth quarter of 2024 for the Hi-Country monitoring site. Table 2-5 presents the high and
second-high 24-hour PM10 concentrations for the fourth quarter at Hi-Country.

Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per
Cubic Meter Fourth Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
10/03/2024 34.0 1333.44
10/06/2024 24.3 1359.36
10/09/2024 20.7 1346.40
10/12/2024 18.6 1329.12
10/15/2024 34.1 1350.72
10/18/2024 1.9 1383.84
10/22/2024 7.0 1366.56
10/24/2024 23.2 1370.88
10/27/2024 10.0 1337.76
10/30/2024 7.0 1401.12
11/02/2024 7.9 1376.64
11/05/2024 29.7 1380.96
11/08/2024 16.6 1404.00
11/11/2024 4.3 1355.04
11/14/2024 8.8 1369.44
11/17/2024 4.5 1379.52
11/20/2024 20.6 1382.40
11/23/2024 7.2 1362.24
11/26/2024 3.4 1396.80
11/29/2024 7.2 1395.36
12/02/2024 15.9 1409.76
12/05/2024 35.4 1405.44
12/08/2024 5.7 1391.04
12/11/2024 Void – Negative raw weight from lab
12/14/2024 7.4 1372.32
12/17/2024 0.6 1402.56
12/20/2024 10.4 1391.04
12/23/2024 7.7 1378.08
12/26/2024 Void – Negative raw weight from lab
12/29/2024 Void – No raw weight from lab
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Table 2-5 High and Second-High 24-Hour PM10 Concentrations – Hi-Country
Number 24-hour Concentration
(μg/m3)
Date of Occurrence
1 35.4 December 5
2 34.1 October 15

There were no ambient PM10 samples greater than 135 ug/m3 and no exceedances of the NAAQS during any
24-hour sampling period during the quarter; thus, no laboratory filter analyses were conducted.

Meteorological data records from the Hi-Country meteorological monitoring site include wind speed and
horizontal wind direction measured at 10 meters, ambient temperature, and relative humidity at 10 meters,
and barometric pressure at 1.5 meters.
2.2.2 Wind Speed and Horizontal Wind Direction
The most frequent (and predominant) winds during the fourth quarter at the Hi-Country monitoring site were
from the south. The second most frequent winds were from the southwest sector. Reported wind directions
represent the directions from which the wind is blowing.

Wind speed records show there were 0.0 percent calm winds during the fourth quarter 2024 at the Hi-Country
site. The percentage of wind speeds that were not calm but were less than or equal to 10.8 m/s (24.2 mph)
was 98.1 percent. 1.9 percent of the winds were greater than 10.8 m/s (24.2 mph) during the fourth quarter.
The sector with the highest average wind speed was south at 6.3 m/s. The maximum wind gust during the
quarter was 27.7 m/s which occurred on December 27 at 18:00.

Figures 2.5 through 2.7 provide diagrams of the joint frequency of occurrence distributions (wind rose) of
wind speed and wind direction by month for October through December 2024 at the Hi-Country monitoring
site. Figure 2.8 presents the wind rose for the fourth quarter of 2024. Summary tables of hourly average
wind direction and wind speed by month for the fourth quarter are presented in Appendix A.
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Figure 2.5 Wind Rose for October 2024 – Hi-Country

Figure 2.6 Wind Rose for November 2024 - Hi-Country

4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
October 2024
10-m Level
5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
November 2024
10-m Level
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Figure 2.7 Wind Rose for December 2024 – Hi-Country

Figure 2.8 Wind Rose for Fourth Quarter (October - December) 2024 – Hi-Country

5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
December 2024
10-m Level
5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott HiCountry
Quarter 4 2024
10-m Level
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2.2.3 Temperature
Ambient daily mean temperatures during the fourth quarter ranged from a low of 23.3F in December to a
high of 74.2°F in October. The hourly minimum was 21.2F which occurred on December 31 at 07:00. The
hourly maximum was 81.9°F which occurred on October 4 at 15:00. The fourth quarter data are summarized
in Table 2-6. Hourly averages of the temperature data by month for the fourth quarter are presented in
Appendix B.
Table 2-6 Summary of Temperature in Degrees Fahrenheit (°F) for Fourth Quarter 2024 – Hi-
Country
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
October 58.2 74.2 32.5 81.9 29.7
November 36.5 52.8 26.7 59.9 23.9
December 36.5 47.9 23.3 51.4 21.2
Fourth Quarter 2024 43.7 74.2 23.3 81.9 21.2
2.3 Data Recovery
Data recoveries in percent possible for the fourth quarter are provided in Tables 2-7 and 2-8.
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Fourth Quarter 2024
Month

Oct.
(%)

Nov.
(%)

Dec.
(%)
4th Qtr.
2024
(%)

Oct.
(%)

Nov.
(%)

Dec.
(%)
4th Qtr.
2024
(%)
Parameter C3 Hi-Country
Wind Speed 100 99.2 100 99.7 79.7 98.9 99.1 92.6
Wind Direction 100 99.2 100 99.9 79.7 98.9 99.1 92.6
Temperature 100 99.9 100 99.9 100 99.7 100 99.9

Table 2-8 Data Recovery in Percent for PM10 for Fourth Quarter 2024
Station

October
(%)

November
(%)

December
(%)
Fourth Quarter
2024
(%)
Copperton C3 100 100 100 100
Hi-Country 100 100 70 90
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3.0 QUALITY CONTROL AND QUALITY ASSURANCE
The PM10 samples collected at the Rio Tinto Kennecott monitoring stations have been subjected to a series of
quality control procedures to document the validity of the data and increase the integrity of the data sets.
The quality control performed for these data is described in this section.
3.1 Visual Inspection of Equipment
Visual inspection of the samplers is performed when a site technician visits each site to perform filter
exchanges and to check the status of the PM10 monitoring equipment. Abnormal conditions are logged and
reported immediately to the program manager for corrective action.
3.2 Equipment Calibration
PM10 sampler calibrations are performed at installation, when audits indicate the need or when problems are
identified, and every three months. Meteorological sensors are calibrated every six months. Calibration
verifications were conducted on the PM10 samplers at Copperton C3 and Hi-Country on October 10, 2024.
The meteorological sensors at Copperton C3 and Hi-Country were calibrated on August 2, 2024. The wind
speed cups at Hi-Country were replaced on October 16, 2024. Copies of the field calibration data sheets are
presented in Appendix C.
3.3 PM10 Flow Checks
Field quality control activities include flow rate, temperature, and pressure checks, and collection of field
blanks. All PM10 sampler quality control checks and calibrations are performed using a certified flow transfer
standard. The flow provided by the sample pump is audited with an external flow rate transfer standard at
least every three months.

Monthly PM10 flow checks were conducted on the samplers at Copperton on October 10, November 7, and
December 6. At Hi-Country, the samplers were calibrated on October 10, November 7, and December 6, 2024.
The measured flow rates of the PM10 samplers should not exceed ±7 percent of the transfer standard flow
rate or within ±10 percent of the designed flow rates for the high-volume samplers. The results of the monthly
flow checks are presented in Table 3-1 and in Appendix D

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants 3-2
Table 3-1 Fourth Quarter PM10 Monthly Flow Check Results
Month Sampler ID Reference
Standard
(m3/min)
Sampler
Flow
(m3/min)
% Difference
(Transfer
Standard)

% Difference
(Design)
Copperton
October
A 1.085 1.114 2.7 -2.7
B 1.094 1.117 2.1 -1.9
C 1.105 1.118 1.2 -0.8
D 1.113 1.132 1.7 0.0
E 1.055 1.120 6.1 -5.8
November
A 1.092 1.073 -1.7 -2.1
B 1.097 1.075 -2.1 -1.6
C 1.086 1.075 -1.0 -2.5
D 1.101 1.088 -1.2 -1.2
E 1.062 1.074 1.1 -4.8
December
A 1.082 1.077 -0.5 -2.9
B 1.082 1.079 -0.3 -2.9
C 1.080 1.080 -0.1 -3.0
D 1.099 1.093 -0.5 -1.3
E 1.078 1.079 0.0 -3.2
Hi-Country
October
A 1.134 1.129 -0.5 1.5
B 1.101 1.120 1.8 -1.4
C 1.108 1.123 1.3 -0.7
D 1.106 1.126 1.8 -0.9
E 1.090 1.133 3.9 -2.5
F 1.102 1.112 0.9 -1.2
G 1.107 1.128 1.9 -0.8
H 1.099 1.126 2.4 -1.6
November
A 1.095 1.092 -0.2 -1.8
B 1.076 1.084 0.8 -3.5
C 1.098 1.088 -0.9 -1.6
D 1.096 1.091 -0.5 -1.6
E 1.102 1.096 -0.6 -1.0
F 1.106 1.078 -2.5 -0.8
G 1.098 1.092 -0.6 -1.4
H 1.092 1.091 -0.1 -2.0
December
A 1.108 1.096 -1.1 -0.5
B 1.095 1.088 -0.6 -1.9
C 1.099 1.091 -0.7 -1.5
D 1.106 1.094 -1.1 -0.7
E 1.086 1.098 1.1 -2.6
F 1.110 1.080 -2.7 -0.5
G 1.103 1.094 -0.8 -1.0
H 1.095 1.091 -0.4 -1.7
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants 3-3
3.4 Arithmetic and Geometric Mean
The arithmetic and geometric mean were calculated using the following formulas,

1) Arithmetic mean - 𝑥̅ ൌ ଵ
௡ ∑𝑋𝑖௡௜ୀଵ
2) Geometric mean - 𝑋௚ തതതത ൌ ሺ𝑋ଵ ൈ 𝑋ଶ ൈ..𝑋௡ሻ ଵ
௡

Table 3-2 contains the arithmetic and geometric means, in micrograms per cubic meter, by station. PM10
concentrations are corrected to standard temperature and pressure conditions. Invalidated filters were not
used in these calculations.
Table 3-2 Arithmetic and Geometric Means – Fourth Quarter 2024
Station
Arithmetic
Mean
(STD)
Geometric
Mean
(STD)
Copperton 27.2 21.5
Hi-Country 13.9 9.8
3.5 Statistics for PM10 Checks
Calculations for the PM10 data quality assessment were made based 40 CFR 58 Appendix A. The percent
difference is calculated using the following formula:

d YX
X xi
ii
i100

Where Yi = concentration indicated by the sampler and Xi = the known concentration.

The coefficient of variation upper bound is calculated using the following equation:

CV = ට௡ ൈ∑ௗ೔మି൫∑ௗభ೙೔సభ൯మ೙೔సభ
ଶ௡ሺ௡ିଵሻ ൈ ට ௡ିଵ
௫బ.భ,೙షభమ

Where: X2 0.1,n-1 is the 10th percentile of a chi-squared distribution with n-1 degrees of freedom.

The absolute volume bias upper bound is then calculated using the following equation:
|𝐴𝐵|ൌ𝐴𝐵൅𝑡଴.ଽହ,௡ିଵ
𝐴𝑆
√𝑛
Where: n is the number of flow rate audits being aggregated; t0.95,n-1 is the 95th quantile of a t-distribution
with n-1 degrees of freedom.

The quantity AB is the mean of the absolute values of the di's and is calculated using the following equation:
AB = ଵ
௡ ∑|𝑑௜|௡௜ୀ଴

AS is the standard deviation of the absolute values if the di's and is calculated using the following equation:
𝐴𝑆 ൌ ඨ𝑛 ൈ ∑|𝑑ଵ|ଶ െ ൫∑|𝑑௜|௡௜ୀଵ ൯ଶ௡௜ୀଵ
𝑛ሺ𝑛 െ 1ሻ
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants 3-4
A summary of the precision, accuracy, and bias statistics for the collocated PM10 is presented in Table 3-3.

Table 3-3 Fourth Quarter 2024 Bias Statistics for PM10 Samplers
Statistics Copperton Hi-Country
Mean Percent Difference -0.479 -0.091
AB 1.395 1.164
AS 1.402 0.915
Bias Estimate ±2.03 ±1.48
3.6 Quality Assurance Audits
To comply with the monitoring requirements, a performance audit of PM10 samplers is conducted within 30
days of installation and quarterly. The PM10 samplers at Copperton and Hi-Country were audited on November
22, 2024; the meteorological sensors at each station were audited on November 22, 2024. A copy of the
November 22, 2024 audit report is presented in Appendix E.
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants
APPENDIX A: HOURLY WIND DATA FOR FOURTH QUARTER 2024

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for October, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 277/01.4 224/01.2 280/01.5 271/01.9 257/02.0 256/02.1 260/01.7 264/00.7 104/01.6 105/02.3 115/01.7 096/02.0 110/02.0
2 289/01.2 285/01.5 282/01.7 288/01.5 280/01.8 256/02.0 263/02.4 007/00.9 134/01.3 110/01.8 111/02.2 105/02.4 103/02.3
3 306/01.7 301/01.8 317/02.1 288/01.7 265/01.5 256/01.9 259/02.3 126/00.9 103/01.3 101/02.4 104/02.4 103/01.6 099/01.7
4 259/04.2 263/03.7 259/03.2 248/02.2 242/01.0 263/01.6 251/02.3 180/02.1 153/02.5 137/06.6 138/07.8 153/06.6 140/07.6
5 302/03.2 297/03.9 274/02.8 271/02.3 267/02.6 318/02.3 283/01.5 272/01.6 072/01.7 092/02.0 081/01.4 046/02.6 062/03.4
6 273/02.4 260/02.4 267/02.5 263/02.9 265/02.5 259/02.9 263/02.4 253/01.4 104/01.8 107/01.7 103/02.5 095/02.1 095/02.2
7 257/03.7 268/02.7 265/02.6 256/03.6 266/04.8 260/03.5 282/02.0 279/00.8 116/01.3 108/01.9 107/02.2 111/02.0 113/01.9
8 267/02.4 261/03.0 266/02.6 251/03.0 256/03.5 257/02.9 264/02.7 251/01.7 108/01.7 109/02.0 111/02.4 108/02.4 075/01.9
9 265/03.1 261/02.4 275/01.4 258/01.7 281/01.6 271/01.9 266/02.4 237/01.0 095/01.7 104/04.1 105/03.5 122/03.6 119/04.7
10 240/02.1 228/04.5 135/02.0 341/00.9 340/01.0 325/01.0 354/00.9 062/01.2 122/04.7 116/08.8 117/09.0 138/06.8 186/04.5
11 157/04.2 167/03.1 154/01.8 036/00.7 335/01.1 302/01.1 354/01.5 292/00.7 191/03.1 157/05.8 151/05.9 129/07.4 132/07.7
12 127/02.3 356/00.9 339/01.0 286/00.7 228/01.2 261/01.4 340/00.7 286/00.5 143/02.9 115/06.7 126/07.0 134/06.9 134/06.8
13 210/02.5 205/02.4 258/01.4 262/01.8 262/02.3 260/02.8 264/02.3 285/00.8 123/03.8 131/03.8 123/04.4 127/05.9 133/06.4
14 267/03.8 283/03.5 272/01.8 265/02.5 261/02.4 251/02.2 227/02.4 158/01.3 145/03.4 134/03.6 118/03.9 118/04.4 114/04.6
15 261/02.2 258/02.5 251/03.4 272/02.3 280/01.3 273/01.7 256/01.7 260/01.3 117/01.1 125/02.1 102/02.4 114/02.4 155/04.0
16 195/01.6 188/01.7 211/01.8 182/02.3 133/03.7 212/01.6 003/01.1 142/03.4 129/05.5 134/07.0 138/07.5 144/06.9 144/06.9
17 280/07.8 266/03.1 048/01.7 312/00.8 158/01.1 150/01.0 138/01.8 118/02.1 074/01.0 029/01.3 050/02.1 029/02.4 027/02.2
18 336/04.4 341/05.0 356/03.5 006/03.6 010/03.7 007/03.3 351/04.5 357/05.2 341/05.9 335/06.9 333/07.4 350/06.4 352/05.2
19 326/01.3 349/01.9 327/01.9 332/02.7 327/01.5 320/01.7 334/01.7 310/01.3 056/01.4 041/01.4 062/01.6 048/01.4 033/02.3
20 284/01.1 262/00.8 296/00.6 290/00.5 268/00.8 273/01.0 265/01.3 266/00.8 082/01.3 109/01.9 109/01.8 118/02.2 120/02.3
21 263/00.8 213/01.1 217/00.7 244/01.1 214/01.4 210/01.2 211/01.4 212/00.9 129/05.8 132/06.9 131/06.6 133/07.4 125/06.6
22 328/00.8 329/01.1 251/01.6 264/01.3 330/01.2 273/01.1 331/00.7 244/00.8 171/02.4 129/05.8 127/06.0 133/04.8 118/04.4
23 254/02.2 247/01.6 245/01.4 247/01.8 249/00.9 261/01.2 272/01.3 253/01.5 138/02.9 122/04.7 130/06.2 128/06.3 120/05.8
24 271/09.1 292/11.1 300/09.9 314/04.9 333/02.8 347/03.4 327/02.0 351/02.0 004/01.7 058/01.4 029/02.7 034/02.6 042/02.1
25 276/01.6 276/00.7 280/01.0 293/00.8 287/00.8 273/01.9 253/02.2 008/00.6 138/00.9 107/02.0 100/01.3 117/02.0 109/01.9
26 003/01.2 259/01.0 255/01.4 288/01.6 275/01.0 278/01.3 260/01.1 252/01.3 121/01.0 104/01.8 114/02.5 105/02.0 104/02.2
27 254/03.2 267/02.1 225/01.4 202/02.1 256/00.9 304/01.3 348/01.1 211/01.2 169/01.2 166/04.0 119/03.5 126/05.6 125/04.8
28 190/03.6 213/03.3 224/04.3 222/03.2 175/02.2 154/02.7 185/02.3 216/04.1 199/06.0 159/05.4 195/04.7 112/04.0 019/03.3
29 017/02.4 002/02.5 353/03.8 357/04.5 002/03.9 001/03.6 347/04.9 356/03.7 347/04.6 340/04.8 347/03.8 350/02.7 297/05.2
30 318/01.8 277/03.3 286/03.9 341/02.1 331/02.0 276/00.8 221/00.6 226/00.6 243/00.7 150/01.2 158/01.3 221/01.1 024/01.9
31 115/03.7 120/03.5 119/03.0 129/03.6 117/04.6 106/02.7 122/02.9 137/04.1 134/03.9 133/06.8 123/06.1 139/04.8 144/04.1
MEAN 272/02.8 266/02.7 270/02.4 279/02.2 275/02.0 272/02.0 281/01.9 256/01.6 121/02.6 113/03.8 111/04.0 110/03.9 104/04.0
MAX 271/09.1 292/11.1 300/09.9 314/04.9 266/04.8 001/03.6 347/04.9 357/05.2 199/06.0 116/08.8 117/09.0 129/07.4 132/07.7
MIN 263/00.8 276/00.7 296/00.6 290/00.5 268/00.8 276/00.8 221/00.6 286/00.5 243/00.7 150/01.2 100/01.3 221/01.1 099/01.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for October, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 090/01.5 076/01.9 074/01.5 087/01.3 350/00.7 284/01.2 276/01.6 261/01.9 252/02.7 262/03.4 263/03.9 255/01.8 263/03.9 264/00.7
2 111/02.2 093/02.0 064/01.6 029/01.9 319/01.4 275/01.7 260/02.4 257/03.1 269/02.7 261/01.4 250/02.0 279/01.9 257/03.1 007/00.9
3 075/01.7 089/01.9 065/01.6 049/01.8 354/01.0 274/01.9 267/01.8 264/02.5 260/03.1 261/02.6 256/03.5 300/01.9 256/03.5 126/00.9
4 131/08.3 188/05.6 242/05.3 214/03.6 199/03.0 175/01.7 275/02.7 270/02.6 292/04.0 285/04.0 289/03.7 222/04.0 131/08.3 242/01.0
5 281/03.8 011/03.2 031/03.5 034/02.4 328/01.5 289/01.7 264/02.9 266/03.5 261/02.8 272/03.9 271/03.6 309/02.7 297/03.9 081/01.4
6 099/02.1 089/02.0 030/02.1 031/01.9 320/01.2 267/01.7 264/02.6 257/03.1 266/03.1 265/02.8 263/03.2 268/02.3 263/03.2 320/01.2
7 101/01.7 043/02.3 013/02.4 360/02.1 350/01.6 263/01.7 259/01.9 268/02.6 263/03.4 267/04.2 279/02.0 277/02.5 266/04.8 279/00.8
8 060/01.6 052/02.3 023/02.1 043/01.2 319/01.0 270/02.0 258/02.4 259/02.5 260/02.7 257/02.9 264/03.2 271/02.3 256/03.5 319/01.0
9 108/04.2 103/03.6 074/01.5 049/01.3 328/01.7 273/01.9 261/02.5 265/03.6 275/02.3 287/01.7 281/01.4 263/02.4 119/04.7 237/01.0
10 167/05.1 125/06.6 138/05.5 169/03.8 184/02.2 262/02.1 261/02.4 259/02.3 266/01.2 201/02.0 144/03.1 180/03.5 117/09.0 354/00.9
11 202/05.3 233/04.2 222/03.6 240/03.9 333/02.3 315/02.3 274/02.1 263/02.5 276/03.5 271/02.7 224/02.3 234/03.3 132/07.7 036/00.7
12 132/06.4 138/06.0 135/05.8 144/03.9 201/01.7 309/01.3 319/01.1 261/02.3 263/02.4 264/02.8 224/02.2 209/03.1 126/07.0 286/00.5
13 134/05.8 119/02.7 353/02.5 007/02.2 345/03.0 330/02.4 322/02.0 285/01.2 238/03.5 275/05.2 267/02.4 252/03.1 133/06.4 285/00.8
14 117/04.0 090/03.1 025/02.7 007/02.5 332/01.7 271/01.8 266/01.9 262/02.1 267/02.4 262/02.6 258/02.6 244/02.8 114/04.6 158/01.3
15 159/04.1 144/03.3 045/02.4 022/01.7 317/00.9 283/01.3 265/02.2 263/03.5 259/02.1 260/02.3 254/02.2 248/02.3 159/04.1 317/00.9
16 141/06.6 146/06.2 148/06.5 135/07.2 158/04.8 151/04.1 150/04.1 163/06.0 164/03.6 189/02.1 196/03.1 159/04.4 138/07.5 003/01.1
17 061/01.2 090/00.6 120/01.0 186/01.1 298/01.4 277/04.0 281/04.5 310/03.2 339/02.4 354/02.2 018/02.8 025/02.2 280/07.8 090/00.6
18 347/04.8 347/04.4 338/04.2 327/03.2 317/02.7 325/02.0 310/02.1 295/02.7 319/02.0 293/02.1 315/01.5 337/04.0 333/07.4 315/01.5
19 059/02.5 044/02.2 016/02.6 027/02.0 324/01.0 272/01.5 301/01.3 287/01.7 305/01.1 259/01.1 273/01.4 344/01.7 332/02.7 324/01.0
20 128/06.6 134/07.3 142/05.8 132/06.2 133/04.6 094/01.1 333/00.8 284/00.7 009/00.9 288/00.7 268/01.1 224/02.2 134/07.3 290/00.5
21 125/06.9 136/06.1 123/06.0 148/04.3 143/02.7 134/02.9 210/01.2 248/01.5 281/01.3 151/01.4 269/00.8 180/03.2 133/07.4 217/00.7
22 112/03.8 104/04.2 105/03.8 116/02.6 261/00.8 287/01.2 261/01.0 263/02.0 254/02.7 257/02.3 268/01.7 244/02.4 127/06.0 331/00.7
23 147/06.3 155/05.7 136/06.0 141/04.6 158/02.6 156/03.2 151/02.9 154/04.2 172/04.7 211/08.3 209/06.3 182/03.9 211/08.3 249/00.9
24 057/02.1 068/01.4 045/01.6 026/01.5 344/01.8 298/01.2 275/01.4 272/01.5 269/01.5 301/01.2 278/01.4 339/03.0 292/11.1 301/01.2
25 116/02.5 093/01.8 069/01.4 113/01.2 049/00.6 287/01.3 278/01.5 263/00.5 040/00.5 027/00.7 211/01.5 356/01.3 116/02.5 263/00.5
26 110/02.5 120/01.9 082/01.5 153/01.0 286/01.2 284/01.3 265/01.8 265/01.7 274/02.3 255/03.3 254/03.0 244/01.7 255/03.3 259/01.0
27 135/03.6 146/03.7 152/05.0 144/05.1 160/03.7 168/02.4 221/02.8 217/03.4 217/03.3 171/03.6 155/04.4 184/03.1 126/05.6 256/00.9
28 022/02.5 051/01.7 150/02.0 287/03.5 294/04.4 327/05.3 342/03.8 004/02.8 008/02.9 004/03.5 010/02.9 221/03.5 199/06.0 051/01.7
29 292/05.7 300/04.9 312/05.1 304/03.4 280/02.8 289/03.2 287/04.1 282/05.0 280/05.3 280/04.2 317/01.9 324/04.0 292/05.7 317/01.9
30 098/01.6 156/02.9 162/01.7 160/01.8 164/01.6 176/02.0 147/02.6 101/00.5 148/01.9 117/02.3 113/04.5 179/01.9 113/04.5 101/00.5
31 132/04.1 143/02.4 161/02.8 236/03.9 248/01.7 272/01.6 308/01.2 324/02.2 296/03.6 030/01.1 298/01.4 139/03.3 133/06.8 030/01.1
MEAN 110/03.9 105/03.5 084/03.3 084/02.8 302/02.0 273/02.1 271/02.2 266/02.5 272/02.6 266/02.7 261/02.6 250/02.8
MAX 131/08.3 134/07.3 148/06.5 135/07.2 158/04.8 327/05.3 281/04.5 163/06.0 280/05.3 211/08.3 209/06.3 292/11.1
MIN 061/01.2 090/00.6 120/01.0 153/01.0 049/00.6 094/01.1 333/00.8 263/00.5 040/00.5 288/00.7 269/00.8 263/00.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 250/02.8 MAXIMUM WIND SPEED =11.1 AT 292 DEGREES DATE OF OCCURRENCE = 10/24 AT 200
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for November, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 301/01.3 297/01.4 276/01.4 268/02.0 266/02.0 270/02.4 270/01.3 274/01.9 177/01.3 113/01.7 126/02.3 138/04.8 134/05.7
2 167/02.5 269/01.2 165/00.8 330/00.5 159/02.1 152/04.7 151/04.1 142/03.3 172/02.0 144/04.4 122/04.1 048/01.8 037/01.6
3 303/01.9 360/03.3 355/02.6 326/02.8 327/02.5 320/02.9 332/03.0 322/02.6 321/03.0 339/04.4 339/04.2 340/03.7 348/02.8
4 320/03.2 336/03.8 353/02.9 334/02.6 349/02.8 360/02.3 355/02.7 319/02.8 349/03.2 357/03.3 003/03.1 319/03.2 287/02.9
5 146/01.7 131/01.7 201/00.9 234/01.1 325/00.8 358/01.1 249/00.7 019/00.7 325/02.9 322/04.1 305/03.7 308/03.1 304/04.2
6 317/03.5 332/03.5 333/03.7 342/03.5 343/02.5 337/02.7 333/02.1 339/02.4 343/03.8 355/03.4 015/02.8 341/03.8 340/03.6
7 327/02.1 323/01.7 326/01.7 324/01.8 320/01.5 340/02.1 298/01.1 348/01.2 168/01.6 148/00.8 029/01.7 039/01.7 031/01.7
8 287/01.1 294/00.9 288/01.3 304/01.4 289/01.3 289/01.5 285/01.5 288/01.2 149/00.9 133/01.4 134/01.7 117/01.7 076/01.5
9 284/01.7 295/00.8 282/01.5 275/01.4 273/01.7 274/01.6 288/01.5 283/00.8 119/00.6 120/01.4 114/01.7 118/01.8 116/02.0
10 269/01.4 283/01.7 275/02.0 269/02.2 274/01.5 274/01.8 262/01.7 261/02.3 183/02.2 134/04.4 121/05.0 113/04.3 116/06.2
11 241/01.2 189/01.4 176/01.3 178/02.2 234/01.6 232/01.7 261/01.6 235/01.8 158/02.9 163/05.7 153/05.7 119/08.7 124/09.1
12 154/03.3 208/07.1 227/06.0 254/05.4 275/05.5 275/04.1 290/03.9 294/04.4 325/02.3 298/04.0 321/03.9 297/05.1 293/06.8
13 276/02.7 267/02.6 274/02.7 292/01.2 324/00.6 150/00.6 233/01.1 194/01.1 119/01.1 110/03.3 112/03.1 116/03.0 150/05.0
14 158/02.2 258/00.9 280/00.9 267/00.9 270/01.2 260/01.4 274/01.8 254/01.8 188/01.3 119/02.6 101/01.9 119/02.8 121/02.5
15 151/01.5 146/03.8 088/01.6 112/01.3 147/02.7 223/02.7 146/02.5 155/04.9 159/05.2 147/04.9 189/04.8 213/05.5 236/08.1
16 134/02.2 103/01.2 130/01.3 135/01.0 118/01.3 035/00.4 202/01.8 123/01.6 162/01.8 119/02.5 125/02.1 123/01.5 126/01.3
17 271/01.8 269/01.9 264/01.7 257/02.1 258/01.9 260/02.0 259/01.9 262/01.7 122/01.0 112/01.5 125/02.5 120/03.3 119/03.0
18 158/01.8 227/02.2 135/04.0 131/06.3 134/04.5 117/03.9 148/01.6 251/04.8 271/05.4 278/06.7 283/09.0 282/08.3 291/05.6
19 291/02.6 289/02.7 294/02.0 288/02.7 296/03.3 295/04.1 282/05.0 272/03.9 157/02.5 145/02.1 147/01.5 073/02.2 075/01.7
20 209/02.1 106/01.8 139/02.4 116/02.0 188/01.3 239/01.1 151/03.6 160/02.5 160/01.3 140/04.4 136/06.8 131/06.8 134/06.9
21 204/01.5 214/01.6 217/01.7 211/01.4 165/01.3 188/01.8 152/02.7 181/02.6 247/01.2 221/01.1 234/01.7 112/03.8 110/04.6
22 220/01.6 230/01.1 220/02.5 246/02.2 251/02.3 260/02.6 273/01.7 269/02.2 200/01.4 173/01.6 119/04.1 127/06.4 128/06.6
23 153/03.5 157/06.3 164/08.0 164/07.6 166/07.1 157/06.5 162/05.9 150/04.8 134/09.0 165/04.4 134/06.8 130/07.0 119/08.6
24 003/02.8 015/01.3 013/00.5 ------017/01.3 139/01.2 ------057/02.1 354/01.4 109/02.1 070/01.1
25 259/02.9 276/03.2 264/03.0 251/02.6 254/01.2 265/01.8 254/02.5 272/00.9 167/01.3 171/02.1 137/02.9 126/05.2 120/05.7
26 139/02.7 137/04.9 141/04.1 173/03.7 112/02.8 133/02.9 118/05.9 122/06.4 117/06.6 146/06.2 156/06.8 159/05.9 157/05.0
27 340/01.1 350/01.8 004/02.0 322/03.3 333/02.8 013/02.6 021/01.4 041/01.3 360/02.6 357/02.5 346/02.5 002/02.0 009/01.9
28 258/02.1 271/02.3 268/02.5 257/02.3 259/02.1 261/02.4 263/02.6 271/02.2 225/00.4 158/01.1 116/02.0 112/02.4 114/01.9
29 280/01.1 265/01.5 278/01.1 317/01.0 299/00.7 319/00.9 297/00.9 296/00.5 088/00.8 114/00.7 137/01.3 112/01.9 088/01.4
30 277/01.2 256/01.0 323/00.9 349/00.8 276/00.9 293/01.2 333/01.0 321/01.0 285/01.1 151/00.6 114/02.0 113/02.0 122/01.8
MEAN 249/02.1 266/02.4 263/02.3 270/02.4 269/02.2 280/02.3 259/02.3 267/02.4 171/02.4 134/03.0 116/03.4 106/03.9 101/04.0
MAX 153/03.5 208/07.1 164/08.0 164/07.6 166/07.1 157/06.5 118/05.9 122/06.4 134/09.0 278/06.7 283/09.0 119/08.7 124/09.1
MIN 287/01.1 295/00.8 013/00.5 330/00.5 324/00.6 035/00.4 249/00.7 296/00.5 225/00.4 151/00.6 137/01.3 123/01.5 070/01.1
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for November, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 127/05.1 121/05.8 130/03.9 124/02.5 180/01.6 241/01.6 259/01.6 223/01.1 202/01.1 185/02.1 173/03.0 203/02.5 121/05.8 223/01.1
2 003/02.2 321/03.1 324/01.7 154/01.4 193/01.4 185/01.3 125/01.5 123/03.4 119/03.0 152/01.3 341/01.6 143/02.3 152/04.7 330/00.5
3 350/03.4 343/03.7 337/03.6 316/03.5 325/03.1 316/03.1 315/02.7 317/02.6 309/04.2 317/03.7 317/03.7 329/03.2 339/04.4 303/01.9
4 022/02.0 021/02.3 004/01.8 071/01.4 312/00.8 246/01.3 202/02.0 194/01.2 184/01.1 159/01.4 124/02.6 340/02.4 336/03.8 312/00.8
5 308/04.0 338/03.1 336/02.9 354/03.1 354/02.8 330/02.4 320/03.3 335/03.2 337/03.4 327/03.0 318/02.8 322/02.5 304/04.2 249/00.7
6 358/04.2 350/04.1 327/04.0 297/03.7 310/03.0 336/02.1 316/02.2 297/01.9 303/02.5 309/02.4 315/02.1 331/03.1 358/04.2 297/01.9
7 023/01.7 029/02.7 024/02.3 015/01.3 320/01.0 291/01.3 277/01.7 285/01.4 292/01.0 297/00.8 298/00.9 334/01.5 029/02.7 148/00.8
8 112/01.9 099/01.7 135/01.2 186/01.0 287/01.4 007/01.4 278/02.0 260/01.3 284/00.9 310/01.2 284/01.6 274/01.4 278/02.0 294/00.9
9 114/02.4 117/02.3 121/01.8 240/01.3 275/02.1 257/02.8 257/02.9 264/02.2 262/01.3 268/02.6 262/02.4 248/01.8 257/02.9 119/00.6
10 127/06.1 135/05.5 123/03.8 211/01.3 258/02.1 239/02.0 249/01.6 252/01.9 245/01.9 248/01.0 233/00.7 227/02.7 116/06.2 233/00.7
11 138/08.6 133/07.1 143/06.4 176/04.0 230/06.6 228/05.3 178/03.4 162/02.7 105/02.2 083/02.9 172/04.1 175/04.1 124/09.1 241/01.2
12 296/04.5 289/04.2 064/02.3 141/01.7 104/00.9 282/01.0 291/01.0 291/01.0 270/01.6 276/02.0 285/01.5 280/03.5 208/07.1 104/00.9
13 135/06.2 122/06.9 142/03.8 115/02.9 294/01.1 303/01.3 312/01.1 064/01.3 099/03.1 118/03.6 195/01.5 159/02.5 122/06.9 324/00.6
14 096/01.7 106/01.7 110/01.2 194/00.9 274/00.7 264/00.9 238/01.6 207/01.8 270/01.2 283/00.9 287/00.9 225/01.5 119/02.8 274/00.7
15 224/08.0 218/04.5 263/09.3 254/06.4 189/01.7 306/01.6 128/01.1 310/02.5 286/02.6 106/01.0 156/00.9 183/03.7 263/09.3 156/00.9
16 101/01.2 042/01.5 259/02.9 309/02.5 332/01.8 341/00.8 116/00.7 285/00.9 270/01.6 277/02.1 270/01.5 128/01.6 259/02.9 035/00.4
17 125/02.3 113/03.1 113/02.8 125/01.5 149/00.7 204/00.4 280/01.0 138/00.6 295/00.7 240/00.6 231/00.7 199/01.7 120/03.3 204/00.4
18 313/04.0 325/02.3 352/03.3 002/02.9 340/02.2 329/03.3 315/03.3 339/02.3 003/02.0 320/02.5 319/02.3 305/03.9 283/09.0 148/01.6
19 138/01.9 126/02.2 128/02.5 201/01.1 273/01.2 231/02.1 221/02.6 250/02.0 256/02.5 209/01.9 248/01.9 235/02.4 282/05.0 201/01.1
20 134/06.3 127/07.0 146/05.3 131/03.0 157/03.0 184/01.9 252/01.6 210/01.4 243/01.3 271/01.0 211/01.6 165/03.2 127/07.0 271/01.0
21 118/05.5 110/05.7 123/05.0 235/01.8 237/02.6 246/02.2 235/03.2 222/02.9 250/02.6 256/02.7 245/02.5 203/02.7 110/05.7 221/01.1
22 ---125/05.1 122/02.9 204/01.3 257/01.7 264/02.1 232/01.0 198/01.6 156/01.8 196/02.0 160/02.2 204/02.5 128/06.6 232/01.0
23 173/06.7 220/08.1 171/03.9 168/02.5 214/04.1 318/05.2 233/03.9 007/01.5 356/02.4 010/02.8 357/04.5 160/05.5 134/09.0 007/01.5
24 030/01.9 356/02.0 011/01.4 306/00.9 294/01.3 268/02.8 264/02.4 259/02.5 256/02.7 255/02.7 255/03.1 339/01.9 255/03.1 013/00.5
25 148/05.8 142/06.1 140/05.3 146/03.5 133/02.6 177/02.6 136/05.1 138/03.5 147/04.3 138/03.2 139/03.2 175/03.4 142/06.1 272/00.9
26 139/04.3 147/03.8 147/04.1 351/02.2 310/02.3 150/02.0 146/00.6 ---345/02.0 326/01.2 302/00.8 139/03.8 156/06.8 146/00.6
27 018/01.7 016/02.0 343/01.7 315/01.5 287/00.9 269/01.2 273/01.7 270/01.5 276/01.5 268/01.9 262/02.2 334/01.9 322/03.3 287/00.9
28 168/01.3 135/01.8 141/01.5 267/01.2 280/01.4 264/02.0 258/02.1 262/02.1 268/02.1 270/02.4 265/02.1 241/01.9 263/02.6 225/00.4
29 122/01.7 148/01.1 226/01.2 273/01.1 272/01.4 275/01.4 271/01.7 278/01.1 285/01.5 290/01.1 258/00.7 272/01.2 112/01.9 296/00.5
30 129/02.1 136/01.7 152/01.9 224/01.0 302/00.9 292/01.4 276/01.3 294/01.1 290/00.8 285/01.2 283/00.9 278/01.2 129/02.1 151/00.6
MEAN 106/03.7 100/03.7 114/03.2 218/02.1 272/01.9 269/02.0 253/02.0 258/01.9 272/02.0 268/02.0 260/02.0 244/02.6
MAX 138/08.6 220/08.1 263/09.3 254/06.4 230/06.6 228/05.3 136/05.1 138/03.5 147/04.3 317/03.7 357/04.5 263/09.3
MIN 101/01.2 148/01.1 226/01.2 194/00.9 149/00.7 204/00.4 146/00.6 138/00.6 295/00.7 240/00.6 258/00.7 204/00.4
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =714 DATA RECOVERY RATE = 99.2%
MONTHLY MEAN = 244/02.6 MAXIMUM WIND SPEED =09.3 AT 263 DEGREES DATE OF OCCURRENCE = 11/15 AT 1600
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for December, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 282/00.8 296/00.9 276/00.7 299/01.0 280/01.5 279/01.3 268/01.0 280/01.3 144/00.8 212/00.5 127/02.4 135/01.6 126/02.0
2 289/01.1 280/01.0 280/01.4 282/01.4 356/00.7 287/00.8 297/01.0 276/01.0 235/00.7 140/00.7 129/01.5 130/01.7 128/02.2
3 309/01.0 298/00.6 288/00.8 303/00.6 280/00.9 290/00.6 212/00.9 281/00.3 155/00.4 128/01.2 128/01.5 128/01.8 135/01.8
4 296/00.5 287/01.1 287/01.5 277/01.1 290/01.1 264/00.6 273/01.1 299/01.0 259/00.8 132/00.9 127/01.9 131/02.0 129/01.8
5 270/01.3 276/01.2 285/01.1 270/01.4 267/01.5 273/01.3 276/01.3 277/01.3 292/00.8 227/00.6 149/01.2 126/01.9 128/01.9
6 276/01.8 268/01.8 285/01.5 290/01.3 321/00.8 290/01.5 264/01.3 276/01.8 346/01.0 083/01.1 090/01.8 105/01.9 134/01.5
7 289/01.3 280/01.3 288/01.5 288/01.6 273/01.4 278/01.3 306/00.6 273/01.2 313/00.8 145/00.7 127/01.4 117/02.2 126/01.9
8 236/01.4 304/00.9 048/01.1 294/00.9 225/01.0 311/01.7 308/01.5 278/01.0 267/01.2 142/01.2 119/01.7 106/02.0 061/01.8
9 332/03.0 309/02.3 299/03.0 331/02.6 309/03.2 323/02.5 004/01.7 001/02.1 347/01.8 016/01.3 043/01.8 326/03.8 281/05.7
10 328/00.6 281/01.1 278/01.7 322/01.8 291/01.3 300/01.3 288/01.3 275/01.1 274/00.8 128/01.3 111/02.3 114/02.2 122/02.6
11 290/00.9 265/01.8 250/01.0 344/00.8 278/01.2 357/00.5 040/00.5 316/00.6 324/00.5 262/00.5 203/01.7 133/05.3 123/04.7
12 229/02.3 242/02.3 231/02.0 201/02.4 214/02.0 232/02.3 126/01.0 124/02.4 212/02.0 146/04.6 133/07.1 117/08.3 151/06.8
13 160/02.3 165/02.0 308/01.3 166/01.4 168/02.0 145/01.6 255/00.6 200/00.1 269/00.2 112/00.6 110/01.3 114/01.9 128/01.9
14 076/01.4 063/02.0 083/01.0 125/01.5 130/01.4 142/03.8 111/01.7 120/04.3 123/04.4 131/07.6 145/07.1 144/06.6 153/05.6
15 246/07.0 257/06.4 244/02.9 267/04.4 254/04.9 268/04.6 289/05.8 292/06.3 345/02.3 032/01.4 030/01.6 238/01.0 286/03.0
16 253/02.3 258/02.5 244/01.6 214/01.2 218/00.8 193/01.1 196/00.5 227/01.0 205/02.4 129/07.0 115/07.8 117/06.5 124/05.7
17 037/01.4 079/02.1 048/02.4 351/01.5 297/01.2 313/01.5 313/01.3 259/01.0 310/01.2 192/01.1 064/00.6 322/02.3 345/03.4
18 257/01.3 281/01.0 253/01.8 215/01.3 304/00.7 330/00.7 282/00.9 245/00.7 033/01.1 099/00.4 132/02.0 129/02.4 147/05.1
19 250/01.3 267/01.7 260/02.4 260/03.5 266/03.3 258/03.5 265/04.0 266/03.5 248/02.2 185/01.7 121/01.3 113/01.8 122/01.5
20 269/01.3 270/00.9 331/01.3 330/01.1 266/00.7 274/02.0 309/00.9 337/00.9 019/00.6 114/00.7 120/01.3 112/01.6 114/02.2
21 302/00.7 240/00.7 256/01.6 261/01.4 276/01.7 010/00.6 262/01.3 259/01.3 203/02.2 136/02.9 116/04.7 077/02.4 142/01.7
22 214/01.2 274/01.0 264/02.0 278/01.6 279/01.4 283/00.9 292/00.9 301/01.1 286/00.7 077/00.8 260/00.4 139/01.4 125/01.1
23 290/01.4 278/01.7 273/01.9 282/01.0 279/00.8 241/01.4 276/01.5 259/01.6 256/02.2 154/00.9 044/01.2 102/01.7 156/02.1
24 261/03.2 255/02.4 277/02.5 250/02.1 260/01.5 190/01.4 272/00.8 337/01.0 186/01.5 199/01.1 196/02.1 191/02.6 117/04.0
25 146/05.9 178/03.5 037/01.9 170/02.4 153/02.4 336/00.4 321/00.3 109/01.5 127/01.1 351/03.6 009/03.6 353/03.0 358/02.4
26 191/00.9 206/01.2 204/00.8 145/02.2 144/03.8 122/03.7 098/01.2 141/02.4 127/03.4 138/06.8 146/06.8 126/07.2 125/06.6
27 254/01.8 257/02.1 120/01.0 176/01.7 112/03.7 148/02.9 118/03.0 119/03.1 119/03.8 125/04.2 141/05.2 117/05.9 110/03.6
28 234/01.3 336/01.1 270/01.3 174/00.9 137/02.5 128/05.6 127/05.3 124/04.0 134/04.0 129/03.6 135/03.5 138/05.4 132/02.3
29 232/00.8 112/01.3 150/04.9 148/05.1 133/03.2 006/01.1 144/01.7 139/01.3 139/03.7 134/04.3 151/06.8 159/07.4 147/07.1
30 277/04.4 288/04.1 284/04.9 288/04.8 299/02.7 297/03.9 291/04.9 284/05.6 295/04.2 255/01.7 286/03.3 302/04.3 290/04.2
31 273/01.4 272/01.8 259/01.5 256/01.5 265/00.8 276/00.9 273/01.1 272/00.7 178/00.4 130/00.9 125/01.6 110/01.8 061/01.9
MEAN 266/01.9 270/01.8 274/01.8 262/01.9 261/01.8 280/01.8 278/01.6 268/01.8 244/01.7 138/02.1 122/02.9 122/03.3 126/03.2
MAX 246/07.0 257/06.4 150/04.9 148/05.1 254/04.9 128/05.6 289/05.8 292/06.3 123/04.4 131/07.6 115/07.8 117/08.3 147/07.1
MIN 296/00.5 298/00.6 276/00.7 303/00.6 304/00.7 336/00.4 321/00.3 200/00.1 269/00.2 099/00.4 260/00.4 238/01.0 125/01.1
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for December, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 128/01.6 139/01.5 135/01.6 214/00.6 285/00.6 285/00.4 295/00.7 276/01.2 298/01.1 328/00.8 006/01.1 261/01.1 127/02.4 285/00.4
2 136/02.1 136/01.6 120/01.4 138/00.5 282/01.1 279/01.0 272/00.6 282/00.8 293/00.4 304/00.4 272/00.8 259/01.1 128/02.2 293/00.4
3 118/01.5 113/01.5 126/01.5 249/00.6 281/01.1 305/00.7 278/01.0 319/00.7 291/00.8 276/00.9 318/00.7 266/01.0 135/01.8 281/00.3
4 133/01.9 127/02.2 129/01.5 248/00.5 280/01.6 286/00.8 271/01.2 279/00.8 280/01.4 284/01.5 277/01.8 260/01.3 127/02.2 296/00.5
5 122/01.8 135/01.7 148/01.1 273/00.4 282/01.9 272/01.6 275/00.7 290/01.3 284/00.9 275/00.9 272/01.1 258/01.3 126/01.9 273/00.4
6 120/01.8 111/01.9 113/01.7 255/00.6 274/01.5 299/01.0 272/00.5 281/01.8 288/01.5 279/01.7 271/01.3 281/01.4 105/01.9 272/00.5
7 101/01.5 099/01.7 121/01.9 199/01.3 281/00.7 300/00.8 316/00.5 324/00.9 328/01.6 277/01.3 239/01.3 277/01.3 117/02.2 316/00.5
8 034/02.6 030/02.7 010/02.3 008/01.5 321/01.1 327/02.7 353/02.9 335/02.9 329/02.4 321/01.8 330/02.5 335/01.8 353/02.9 304/00.9
9 275/06.7 302/04.1 344/03.2 331/02.7 302/02.6 304/02.0 323/01.8 336/02.0 299/02.3 292/02.3 285/01.4 322/02.7 275/06.7 016/01.3
10 144/01.6 151/01.1 200/00.8 281/01.1 288/01.1 279/01.8 266/02.3 267/01.6 268/01.6 275/01.4 267/01.7 266/01.5 122/02.6 328/00.6
11 123/03.9 145/02.7 189/01.6 220/01.5 199/01.3 227/01.2 265/01.4 203/01.0 275/01.6 010/00.7 227/01.4 247/01.6 133/05.3 324/00.5
12 162/06.4 155/05.2 149/04.6 152/03.7 154/02.8 148/02.3 145/02.2 174/04.5 193/04.5 175/05.1 200/02.9 172/03.7 117/08.3 126/01.0
13 111/01.2 129/00.9 190/01.5 233/00.8 237/00.7 251/01.3 271/01.4 230/01.2 168/01.6 069/01.2 081/01.3 173/01.3 160/02.3 200/00.1
14 133/06.8 134/07.2 125/05.7 111/04.6 105/03.7 212/10.0 218/07.5 239/08.2 235/06.1 239/07.7 240/06.8 141/05.1 212/10.0 083/01.0
15 264/04.6 285/04.6 332/04.1 262/02.9 182/01.5 279/01.4 264/02.0 258/02.6 271/02.4 259/03.0 257/02.9 273/03.5 246/07.0 238/01.0
16 126/05.3 128/04.9 121/02.3 129/00.9 152/03.2 156/02.0 214/01.5 271/01.1 214/01.9 161/01.0 296/01.2 183/02.7 115/07.8 196/00.5
17 016/03.2 023/03.2 023/02.2 332/02.3 335/02.8 329/02.6 267/02.7 265/02.8 267/03.1 259/02.7 272/01.4 326/02.1 345/03.4 064/00.6
18 136/03.9 134/02.2 137/01.1 256/01.1 264/01.5 264/02.4 284/01.5 242/01.4 270/01.4 291/01.3 272/01.3 246/01.6 147/05.1 099/00.4
19 117/02.4 132/01.6 153/01.3 276/00.6 259/00.9 279/00.7 277/01.6 266/02.8 248/00.8 268/01.8 257/02.0 242/02.0 265/04.0 276/00.6
20 123/02.6 125/02.0 136/01.3 257/00.2 273/01.1 300/00.5 317/00.9 090/00.6 270/01.4 111/00.9 283/00.8 295/01.2 123/02.6 257/00.2
21 127/02.1 137/02.8 140/01.6 246/01.8 255/02.5 259/02.2 253/02.2 264/01.8 013/01.0 305/01.9 209/02.2 236/01.9 116/04.7 010/00.6
22 104/02.1 117/01.7 121/01.2 111/01.1 350/00.4 178/00.6 324/00.7 151/01.0 292/00.9 291/01.1 277/01.3 259/01.1 104/02.1 260/00.4
23 204/00.8 092/01.0 136/01.2 291/01.1 272/02.0 283/01.4 272/02.4 279/01.9 276/02.0 262/02.4 257/02.3 260/01.6 272/02.4 279/00.8
24 131/04.7 149/03.5 134/04.8 132/05.6 120/04.4 140/03.7 149/05.3 149/04.5 148/04.3 178/02.3 207/01.8 184/03.0 132/05.6 272/00.8
25 029/02.1 034/01.9 060/00.9 094/01.1 003/00.5 355/00.3 273/00.8 265/01.0 263/00.9 271/01.1 266/01.0 003/01.8 146/05.9 355/00.3
26 132/06.0 071/03.1 198/02.4 322/02.6 047/01.5 154/02.3 295/04.2 286/03.1 237/01.2 281/01.9 272/02.1 160/03.2 126/07.2 204/00.8
27 124/03.1 085/01.9 058/02.1 296/07.7 295/11.7 300/07.7 297/09.9 322/05.3 022/01.8 180/02.2 189/02.0 136/04.0 295/11.7 120/01.0
28 130/02.5 059/01.5 090/01.7 212/01.6 315/01.2 338/00.8 259/01.3 184/01.4 167/01.4 135/00.8 152/01.4 148/02.3 128/05.6 135/00.8
29 156/06.8 146/05.5 142/03.5 235/05.5 188/03.4 317/02.5 100/02.5 290/02.0 304/03.9 278/06.9 280/05.5 163/04.0 159/07.4 232/00.8
30 296/03.8 338/02.3 039/01.8 355/01.7 359/01.3 282/01.1 247/01.4 323/01.3 277/01.0 267/02.0 279/01.9 296/03.0 284/05.6 277/01.0
31 357/02.2 340/01.7 265/01.5 322/02.1 267/01.5 264/01.6 254/02.0 258/01.0 258/01.3 241/01.3 227/01.5 263/01.4 357/02.2 178/00.4
MEAN 124/03.2 112/02.6 126/02.1 252/01.9 278/02.0 277/02.0 273/02.2 269/02.1 272/01.9 269/02.0 261/01.9 246/02.1
MAX 156/06.8 134/07.2 125/05.7 296/07.7 295/11.7 212/10.0 297/09.9 239/08.2 235/06.1 239/07.7 240/06.8 295/11.7
MIN 204/00.8 129/00.9 200/00.8 257/00.2 350/00.4 355/00.3 272/00.5 090/00.6 293/00.4 304/00.4 318/00.7 200/00.1
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 246/02.1 MAXIMUM WIND SPEED =11.7 AT 295 DEGREES DATE OF OCCURRENCE = 12/27 AT 1800
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
Joint Frequency Distribution for October, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 1.3 1.9 1.6 0.4 0.0 0.0 5.2 2.7
NNE 11.25 - 33.75 0.5 2.4 0.3 0.0 0.0 0.0 3.2 2.2
NE 33.75 - 56.25 0.8 1.6 0.0 0.0 0.0 0.0 2.4 1.8
ENE 56.25 - 78.75 1.2 1.3 0.1 0.0 0.0 0.0 2.7 1.7
E 78.75 - 101.25 1.2 1.9 0.1 0.0 0.0 0.0 3.2 1.7
ESE 101.25 - 123.75 0.8 6.0 3.2 0.5 0.3 0.0 10.9 3.0
SE 123.75 - 146.25 0.4 1.3 2.6 5.8 0.1 0.0 10.2 5.2
SSE 146.25 - 168.75 0.9 2.0 2.3 1.1 0.0 0.0 6.3 3.4
S 168.75 - 191.25 0.3 1.5 0.5 0.1 0.0 0.0 2.4 2.7
SSW 191.25 - 213.75 0.9 1.2 0.5 0.4 0.1 0.0 3.2 2.8
SW 213.75 - 236.25 1.1 0.5 1.1 0.0 0.0 0.0 2.7 2.4
WSW 236.25 - 258.75 2.0 4.2 1.5 0.1 0.0 0.0 7.8 2.3
W 258.75 - 281.25 5.5 12.4 3.4 0.4 0.1 0.0 21.8 2.3
WNW 281.25 - 303.75 3.8 1.3 1.9 0.3 0.1 0.1 7.5 2.4
NW 303.75 - 326.25 1.7 1.9 0.5 0.0 0.0 0.0 4.2 1.9
NNW 326.25 - 348.75 1.7 1.9 1.6 0.5 0.0 0.0 5.8 2.8
0.4
24.3 43.4 21.2 9.7 0.8 0.1 100.0 2.8
TOTAL NUMBER OF OBSERVATIONS =744
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
Joint Frequency Distribution for November, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.7 3.2 1.3 0.0 0.0 0.0 5.2 2.6
NNE 11.25 - 33.75 0.7 1.7 0.0 0.0 0.0 0.0 2.4 1.8
NE 33.75 - 56.25 0.3 0.4 0.0 0.0 0.0 0.0 0.7 1.6
ENE 56.25 - 78.75 0.6 0.6 0.0 0.0 0.0 0.0 1.1 1.7
E 78.75 - 101.25 0.4 0.8 0.0 0.0 0.0 0.0 1.3 1.8
ESE 101.25 - 123.75 1.8 5.0 2.0 1.3 0.3 0.0 10.4 3.0
SE 123.75 - 146.25 1.8 3.5 2.7 2.9 0.4 0.0 11.3 3.8
SSE 146.25 - 168.75 2.5 2.7 2.1 1.7 0.0 0.0 9.0 3.2
S 168.75 - 191.25 1.1 1.8 0.8 0.1 0.0 0.0 3.9 2.4
SSW 191.25 - 213.75 2.0 1.1 0.0 0.3 0.0 0.0 3.4 1.9
SW 213.75 - 236.25 1.4 2.0 0.6 0.8 0.0 0.0 4.8 2.8
WSW 236.25 - 258.75 1.8 4.6 0.1 0.3 0.0 0.0 6.9 2.1
W 258.75 - 281.25 4.9 8.1 0.4 0.4 0.1 0.0 14.0 2.0
WNW 281.25 - 303.75 6.6 1.8 1.5 0.3 0.3 0.0 10.5 2.1
NW 303.75 - 326.25 2.1 3.6 2.5 0.1 0.0 0.0 8.4 2.5
NNW 326.25 - 348.75 0.8 3.2 2.2 0.0 0.0 0.0 6.3 2.7
0.6
29.6 44.3 16.2 8.3 1.1 0.0 100.0 2.6
TOTAL NUMBER OF OBSERVATIONS =714
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =99.2%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
Joint Frequency Distribution for December, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 1.3 1.1 0.3 0.0 0.0 0.0 2.7 1.8
NNE 11.25 - 33.75 0.7 0.8 0.3 0.0 0.0 0.0 1.7 1.9
NE 33.75 - 56.25 0.7 0.7 0.0 0.0 0.0 0.0 1.3 1.6
ENE 56.25 - 78.75 0.8 0.7 0.1 0.0 0.0 0.0 1.6 1.6
E 78.75 - 101.25 1.1 0.8 0.0 0.0 0.0 0.0 1.9 1.5
ESE 101.25 - 123.75 2.2 3.5 2.0 0.4 0.1 0.0 8.2 2.7
SE 123.75 - 146.25 3.9 5.8 2.3 3.0 0.0 0.0 14.9 2.9
SSE 146.25 - 168.75 1.3 1.5 1.1 1.5 0.0 0.0 5.4 3.5
S 168.75 - 191.25 1.1 1.1 0.5 0.0 0.0 0.0 2.7 2.1
SSW 191.25 - 213.75 1.9 1.6 0.1 0.0 0.1 0.0 3.8 1.9
SW 213.75 - 236.25 2.3 0.5 0.0 0.4 0.0 0.0 3.2 1.9
WSW 236.25 - 258.75 3.2 3.2 0.3 0.7 0.0 0.0 7.4 2.2
W 258.75 - 281.25 12.5 6.6 1.2 0.5 0.0 0.0 20.8 1.7
WNW 281.25 - 303.75 8.1 1.5 2.0 0.7 0.1 0.1 12.5 2.2
NW 303.75 - 326.25 3.1 1.6 0.3 0.1 0.0 0.0 5.1 1.6
NNW 326.25 - 348.75 1.5 2.2 0.4 0.0 0.0 0.0 4.0 2.0
2.7
45.6 33.1 10.9 7.3 0.4 0.1 100.0 2.2
TOTAL NUMBER OF OBSERVATIONS =744
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
Joint Frequency Distribution for October - December 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 1.1 2.0 1.0 0.1 0.0 0.0 4.4 2.4
NNE 11.25 - 33.75 0.6 1.6 0.2 0.0 0.0 0.0 2.5 2.0
NE 33.75 - 56.25 0.6 0.9 0.0 0.0 0.0 0.0 1.5 1.7
ENE 56.25 - 78.75 0.9 0.9 0.1 0.0 0.0 0.0 1.8 1.7
E 78.75 - 101.25 0.9 1.2 0.0 0.0 0.0 0.0 2.1 1.7
ESE 101.25 - 123.75 1.6 4.9 2.4 0.7 0.2 0.0 9.8 2.9
SE 123.75 - 146.25 2.0 3.5 2.5 3.9 0.2 0.0 12.2 3.8
SSE 146.25 - 168.75 1.6 2.0 1.8 1.4 0.0 0.0 6.9 3.3
S 168.75 - 191.25 0.8 1.5 0.6 0.1 0.0 0.0 3.0 2.4
SSW 191.25 - 213.75 1.6 1.3 0.2 0.2 0.1 0.0 3.5 2.2
SW 213.75 - 236.25 1.6 1.0 0.5 0.4 0.0 0.0 3.5 2.5
WSW 236.25 - 258.75 2.4 4.0 0.6 0.4 0.0 0.0 7.4 2.2
W 258.75 - 281.25 7.7 9.0 1.7 0.5 0.1 0.0 18.9 2.0
WNW 281.25 - 303.75 6.1 1.5 1.8 0.4 0.2 0.1 10.2 2.2
NW 303.75 - 326.25 2.3 2.4 1.1 0.1 0.0 0.0 5.9 2.1
NNW 326.25 - 348.75 1.4 2.4 1.4 0.2 0.0 0.0 5.4 2.5
1.2
33.2 40.2 16.1 8.4 0.8 0.1 100.0 2.5
TOTAL NUMBER OF OBSERVATIONS =2202
POSSIBLE NUMBER OF OBSERVATIONS =2208
DATA RECOVERY =99.7%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
WIND GUST in mps for OCTOBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 3.6 4.9 3.2 3.5 3.5 3.6 3.8 2.2 3.2 4.7 4.4 4.9 5.0 4.3 4.8 3.8 3.3 1.8 1.9 2.5 3.5 4.6 7.1 6.9 4.0 7.1 1.8
2 5.3 3.2 3.5 3.2 3.0 3.7 4.5 3.1 4.0 4.2 4.5 5.1 5.4 5.4 6.5 4.4 5.3 4.1 3.9 4.2 4.6 4.7 5.4 4.0 4.4 6.5 3.0
3 3.9 5.4 5.4 2.8 3.0 4.3 5.1 2.4 3.1 5.0 4.6 4.3 4.6 4.4 5.0 4.0 4.7 3.0 3.5 3.0 5.4 5.0 4.7 5.6 4.3 5.6 2.4
4 6.6 6.7 5.3 4.7 3.7 3.8 4.8 5.2 9.9 13.1 13.0 11.7 13.1 15.5 14.2 11.3 7.4 7.2 4.1 6.9 6.0 7.3 6.2 6.8 8.1 15.5 3.7
5 6.2 7.6 6.0 3.9 5.0 5.4 3.8 4.9 4.1 5.4 4.4 7.1 9.3 9.6 9.6 8.2 7.3 3.7 3.4 4.6 5.7 6.7 6.6 6.3 6.0 9.6 3.4
6 4.6 4.7 4.6 5.7 5.0 4.7 4.8 3.3 3.5 4.3 5.2 5.0 5.5 5.8 5.8 5.9 4.9 3.7 4.2 5.3 5.6 5.6 5.3 5.6 5.0 5.9 3.3
7 6.6 4.5 4.8 6.3 7.6 7.4 4.3 2.5 3.1 3.9 4.1 4.5 4.5 4.8 5.8 5.9 5.2 4.5 5.5 5.1 5.0 6.1 7.3 4.4 5.2 7.6 2.5
8 4.6 5.4 5.1 6.1 6.7 5.2 4.9 3.8 2.9 4.0 5.1 4.9 4.4 4.8 6.2 5.5 3.7 2.3 3.9 4.0 4.1 4.3 4.6 6.1 4.7 6.7 2.3
9 5.9 4.7 3.4 3.5 3.5 3.7 4.6 3.5 5.5 7.6 7.0 7.1 8.8 8.0 7.0 4.1 3.7 3.9 3.2 4.1 5.9 4.7 3.8 3.7 5.0 8.8 3.2
10 6.2 9.1 6.8 2.0 2.2 2.6 3.6 4.1 11.8 13.7 14.1 12.9 11.7 11.2 11.1 12.1 9.8 5.6 5.0 4.6 4.7 2.8 7.6 8.0 7.6 14.1 2.0
11 8.8 8.4 6.3 1.9 2.5 2.2 2.8 2.2 10.1 9.9 11.3 12.8 13.8 11.9 10.8 10.6 9.5 5.6 4.2 3.8 4.8 6.3 5.3 7.2 7.2 13.8 1.9
12 7.9 3.1 1.9 3.1 2.7 2.8 2.2 2.5 7.6 10.3 11.8 12.8 13.3 11.8 16.6 12.3 8.4 4.9 4.0 3.2 3.7 3.8 4.7 4.5 6.7 16.6 1.9
13 4.5 4.7 3.7 3.6 4.8 5.4 5.2 2.2 6.7 6.9 8.2 11.0 11.0 13.0 7.7 6.0 5.9 5.8 5.0 4.7 3.9 10.0 11.6 6.7 6.6 13.0 2.2
14 6.9 6.5 4.5 4.0 4.6 5.4 5.9 4.7 6.0 6.6 7.2 8.3 8.9 9.6 8.8 7.4 5.4 3.8 3.7 3.5 3.5 4.2 5.6 5.5 5.9 9.6 3.5
15 4.8 4.7 6.3 5.5 3.2 3.5 3.4 2.6 3.0 5.4 4.5 7.5 8.2 9.3 8.3 5.6 5.4 2.4 2.5 3.7 5.6 4.6 4.8 4.5 5.0 9.3 2.4
16 3.6 7.5 5.0 7.0 8.3 5.6 3.3 8.8 10.9 12.6 12.9 11.9 13.1 13.2 13.1 13.3 14.6 10.7 8.6 7.9 17.0 8.6 7.2 7.5 9.7 17.0 3.3
17 14.2 9.0 4.2 3.3 3.4 2.5 3.7 3.9 2.5 3.8 5.2 6.0 5.5 3.4 1.8 3.7 2.9 11.2 11.4 9.2 8.4 6.8 5.3 7.1 5.8 14.2 1.8
18 9.4 10.2 8.4 8.5 9.9 7.2 8.8 12.3 12.4 13.5 14.2 13.9 11.3 11.1 9.8 9.0 7.3 5.3 4.4 3.7 5.4 6.6 5.3 4.0 8.8 14.2 3.7
19 3.8 5.1 4.8 5.9 3.0 3.5 3.3 5.0 4.0 4.3 3.9 4.3 5.4 5.5 6.1 6.2 5.4 2.6 2.5 3.5 3.1 2.6 2.9 4.6 4.2 6.2 2.5
20 2.3 2.0 1.5 1.4 2.6 1.9 2.7 3.6 3.6 4.1 3.7 4.5 7.9 12.4 12.3 10.8 9.7 7.5 4.8 1.8 1.9 2.9 1.8 2.9 4.6 12.4 1.4
21 2.6 2.3 2.7 2.4 3.2 4.3 4.5 6.5 9.9 12.4 10.9 11.9 11.0 11.7 9.7 9.6 8.1 5.9 6.5 3.7 3.3 3.3 4.6 3.3 6.4 12.4 2.3
22 3.3 3.2 4.6 3.8 2.7 2.5 1.7 2.8 9.3 10.7 9.5 9.3 8.7 6.8 7.4 7.1 7.5 1.9 2.3 2.4 3.7 5.0 4.4 3.6 5.2 10.7 1.7
23 5.7 4.8 3.0 3.6 2.3 2.3 2.5 2.7 9.2 9.4 10.7 10.1 10.3 11.1 11.4 10.3 8.2 6.2 7.2 8.4 9.0 14.1 17.1 18.2 8.2 18.2 2.3
24 19.3 18.8 19.2 13.4 8.9 8.2 4.4 4.7 4.9 4.3 6.7 7.4 5.3 5.4 5.1 4.6 4.5 3.7 3.0 2.3 3.2 2.5 2.3 2.2 6.8 19.3 2.2
25 2.7 2.0 1.6 1.8 1.7 4.2 5.3 1.6 3.0 3.8 3.5 4.2 4.2 4.8 4.2 3.5 2.5 1.8 2.6 3.3 2.0 1.5 2.3 4.4 3.0 5.3 1.5
26 3.0 3.1 3.6 3.9 2.4 3.7 3.4 3.4 2.9 3.5 4.3 3.9 4.7 5.2 4.0 3.5 2.3 2.2 2.0 2.6 3.4 4.1 6.8 5.7 3.6 6.8 2.0
27 5.3 4.3 3.9 4.8 2.4 3.4 3.4 4.7 4.5 7.2 7.8 12.2 8.5 8.6 8.6 10.3 10.2 7.5 5.6 7.9 8.3 7.5 9.1 10.4 6.9 12.2 2.4
28 10.0 8.1 8.7 9.5 7.0 7.2 6.8 8.5 11.8 11.7 11.2 9.2 8.2 7.1 4.8 4.5 9.7 10.8 10.0 8.9 7.8 8.4 8.9 7.4 8.6 11.8 4.5
29 6.1 5.0 9.2 9.7 8.6 9.1 10.2 8.3 9.6 10.7 9.0 7.3 12.3 12.4 12.6 13.7 7.8 5.7 6.9 8.9 10.8 9.4 9.1 3.6 9.0 13.7 3.6
30 3.6 6.0 7.1 4.4 3.7 2.4 2.0 2.4 2.4 2.8 2.8 3.4 5.9 3.9 6.5 3.7 3.3 3.1 5.8 6.0 2.5 4.5 5.3 7.2 4.2 7.2 2.0
31 7.0 6.5 6.2 8.3 8.0 6.9 6.7 7.7 10.7 12.5 11.2 9.0 8.9 8.1 7.0 8.2 11.1 5.1 2.7 3.3 8.1 9.9 3.8 2.9 7.5 12.5 2.7
MEAN 6.1 5.9 5.3 4.9 4.5 4.5 4.4 4.4 6.3 7.5 7.6 8.0 8.4 8.4 8.1 7.4 6.6 4.9 4.6 4.7 5.5 5.8 6.0 5.8 6.1
MAX 19.3 18.8 19.2 13.4 9.9 9.1 10.2 12.3 12.4 13.7 14.2 13.9 13.8 15.5 16.6 13.7 14.6 11.2 11.4 9.2 17.0 14.1 17.1 18.2 19.3
MIN 2.3 2.0 1.5 1.4 1.7 1.9 1.7 1.6 2.4 2.8 2.8 3.4 4.2 3.4 1.8 3.5 2.3 1.8 1.9 1.8 1.9 1.5 1.8 2.2 1.4
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =6.1 mps
MAXIMUM WIND GUST =19.3 mps DATE OF OCCURRENCE =10/24 AT 0100 MAXIMUM DAILY MEAN =9.7 mps DATE OF OCCURRENCE =10/16
MINIMUM WIND GUST =1.4 mps DATE OF OCCURRENCE =10/20 AT 0400 MINUMUM DAILY MEAN =3.0 mps DATE OF OCCURRENCE =10/25
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
WIND GUST in mps for NOVEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 2.3 3.3 2.7 3.3 4.0 4.9 3.1 3.3 2.7 3.2 7.5 10.8 10.3 9.0 9.8 8.6 4.9 4.0 3.2 3.5 2.8 2.9 4.0 4.9 4.9 10.8 2.3
2 6.1 2.9 3.2 2.0 6.5 10.9 8.4 6.2 6.5 8.5 7.3 4.7 3.9 5.4 7.3 4.9 4.4 3.0 2.7 4.2 5.9 6.2 4.8 3.8 5.4 10.9 2.0
3 6.1 7.9 6.3 6.2 5.6 6.6 6.5 5.4 7.6 8.8 8.0 8.6 6.3 7.9 8.3 8.4 9.6 6.5 6.3 5.6 5.7 9.3 7.9 8.1 7.2 9.6 5.4
4 6.6 9.1 5.7 5.7 4.8 3.8 6.0 6.3 6.7 7.4 7.5 7.3 7.4 5.1 5.2 6.6 5.0 1.7 2.9 3.5 3.5 4.6 5.1 7.0 5.6 9.1 1.7
5 5.0 5.0 2.4 4.4 2.2 4.4 2.0 4.0 8.3 10.9 9.5 9.8 11.9 9.1 9.1 8.4 9.1 7.8 6.6 7.3 8.0 7.3 6.2 6.2 6.9 11.9 2.0
6 7.5 7.4 7.6 7.6 6.2 6.7 6.2 7.3 10.2 7.1 6.3 8.8 8.4 9.8 8.8 8.0 8.2 7.5 5.0 4.2 3.7 4.9 4.9 3.7 6.9 10.2 3.7
7 4.3 2.9 3.3 3.1 2.7 3.6 2.2 2.9 3.6 3.0 4.8 5.1 5.4 4.9 6.2 5.8 4.0 3.0 2.9 3.2 2.5 2.5 2.3 2.0 3.6 6.2 2.0
8 2.3 2.0 2.3 2.2 2.5 2.6 2.8 2.4 2.9 3.2 4.1 4.2 4.3 4.6 4.0 3.6 3.2 2.5 3.3 4.8 5.3 2.7 2.4 2.5 3.2 5.3 2.0
9 2.7 2.0 2.6 3.7 3.1 2.7 2.6 2.0 1.9 3.2 4.1 4.9 4.7 5.0 4.8 3.5 2.4 4.1 4.5 4.4 4.5 2.8 4.4 4.2 3.5 5.0 1.9
10 3.8 2.9 3.8 4.1 3.1 3.6 3.4 3.9 7.1 8.0 10.0 8.4 10.2 9.6 9.1 7.6 3.5 4.3 4.9 3.7 4.3 4.6 3.6 2.4 5.4 10.2 2.4
11 4.6 5.3 3.5 6.2 5.2 4.6 3.9 5.1 9.7 9.7 10.2 13.3 14.9 14.5 13.1 13.4 12.1 13.6 11.8 8.1 6.1 8.0 9.0 10.3 9.0 14.9 3.5
12 10.1 16.7 11.3 13.2 11.2 9.2 9.1 9.6 7.3 9.2 11.8 13.6 14.3 12.6 10.3 6.9 3.6 2.3 2.6 2.2 2.7 3.4 3.9 3.1 8.3 16.7 2.2
13 5.5 4.5 5.0 2.9 2.7 3.0 2.8 3.7 4.3 5.5 5.3 7.5 9.8 11.8 12.6 10.3 7.9 3.7 3.4 3.5 3.6 7.8 7.6 4.3 5.8 12.6 2.7
14 5.4 2.5 2.4 2.7 2.8 3.0 2.8 3.4 4.6 6.0 4.2 4.8 4.9 3.8 5.1 2.9 2.5 1.9 1.8 4.0 3.4 2.8 2.3 2.2 3.4 6.0 1.8
15 6.7 8.1 7.7 4.1 7.0 8.0 7.1 9.7 10.1 8.8 15.8 11.4 17.2 16.2 12.4 17.0 15.5 6.6 4.8 4.7 7.9 6.6 5.3 2.8 9.2 17.2 2.8
16 3.6 2.9 2.9 2.8 3.2 2.5 7.9 3.0 3.1 4.6 3.5 3.2 2.9 3.4 4.7 7.8 7.2 5.0 2.3 2.2 1.7 3.6 5.0 2.9 3.8 7.9 1.7
17 2.9 3.5 2.9 3.7 3.1 3.4 3.7 3.3 2.6 3.6 6.8 6.2 5.6 5.3 5.4 5.3 2.8 1.8 1.9 2.0 2.8 1.7 3.1 2.6 3.6 6.8 1.7
18 6.3 5.5 10.7 12.4 9.6 7.8 5.4 13.9 13.9 14.9 15.6 14.3 15.1 9.8 6.8 9.2 6.3 4.3 7.6 6.9 3.7 3.7 7.5 6.0 9.1 15.6 3.7
19 4.8 4.5 3.8 5.7 7.7 10.6 9.5 7.2 4.4 4.8 5.9 5.1 4.1 4.2 6.0 5.1 3.5 2.5 3.9 4.0 3.5 4.4 4.1 4.9 5.2 10.6 2.5
20 5.7 5.7 5.9 5.7 4.6 3.1 7.5 4.9 7.0 9.8 12.3 12.6 11.4 11.9 12.8 11.8 6.0 7.0 3.8 3.2 3.3 3.5 2.8 4.8 7.0 12.8 2.8
21 4.7 5.1 4.3 3.3 4.4 5.2 6.3 7.2 4.1 3.6 5.6 7.9 8.4 9.2 7.9 7.7 4.1 4.3 3.9 5.0 5.3 4.0 5.3 5.2 5.5 9.2 3.3
22 4.2 3.9 4.7 3.9 4.1 4.7 3.9 4.3 3.4 5.5 9.0 10.8 11.3 ---8.3 6.8 3.8 3.3 4.0 3.0 4.6 5.7 8.2 6.9 5.6 11.3 3.0
23 9.7 13.7 13.7 12.8 13.1 11.8 10.4 12.5 15.9 16.3 13.8 13.5 15.2 14.9 14.8 8.8 8.5 10.2 11.5 9.1 4.8 6.6 6.9 9.4 11.6 16.3 4.8
24 7.2 5.7 2.7 ------3.1 2.8 ------6.1 4.7 4.7 3.4 4.6 4.0 3.8 1.9 2.2 4.5 4.1 3.8 4.3 5.3 4.9 4.2 7.2 1.9
25 4.7 5.5 5.3 5.7 3.5 3.9 5.2 1.8 3.9 4.4 7.3 9.6 9.1 10.6 10.1 10.0 9.5 6.8 6.5 9.2 10.1 8.5 7.2 7.8 6.9 10.6 1.8
26 8.5 9.7 9.9 11.5 8.0 9.5 10.8 10.9 10.4 11.5 13.8 11.7 10.4 8.0 7.5 8.3 8.4 8.2 4.2 1.8 ---4.1 2.9 1.8 8.3 13.8 1.8
27 3.2 6.7 5.4 8.4 8.5 6.8 5.0 5.3 5.6 5.3 5.6 4.3 4.1 5.2 5.1 5.0 3.3 2.5 3.5 2.9 3.1 3.9 3.6 3.6 4.8 8.5 2.5
28 3.4 4.1 4.1 4.2 3.6 3.8 3.8 3.8 1.4 3.3 3.5 4.5 4.1 3.4 4.3 2.8 2.2 2.6 3.5 3.7 3.8 3.5 3.6 3.8 3.5 4.5 1.4
29 2.3 2.7 2.3 2.3 2.2 2.0 2.5 1.7 2.0 2.0 3.5 3.4 3.6 3.7 2.5 2.0 1.8 2.8 2.6 3.1 2.5 2.6 2.0 1.9 2.5 3.7 1.7
30 2.4 2.5 2.5 1.6 1.7 2.8 2.5 2.6 2.4 2.2 3.7 4.2 3.3 3.8 3.4 2.8 2.2 3.5 2.5 2.8 1.9 1.9 2.2 1.9 2.6 4.2 1.6
MEAN 5.1 5.5 5.0 5.4 5.1 5.3 5.2 5.4 6.0 6.7 7.7 8.0 8.2 7.8 7.7 7.1 5.6 4.6 4.4 4.3 4.3 4.6 4.8 4.5 5.8
MAX 10.1 16.7 13.7 13.2 13.1 11.8 10.8 13.9 15.9 16.3 15.8 14.3 17.2 16.2 14.8 17.0 15.5 13.6 11.8 9.2 10.1 9.3 9.0 10.3 17.2
MIN 2.3 2.0 2.3 1.6 1.7 2.0 2.0 1.7 1.4 2.0 3.5 3.2 2.9 3.4 2.5 2.0 1.8 1.7 1.8 1.8 1.7 1.7 2.0 1.8 1.4
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =714 DATA RECOVERY RATE =
MONTHLY MEAN =5.8 mps
MAXIMUM WIND GUST =17.2 mps DATE OF OCCURRENCE =11/15 AT 1300 MAXIMUM DAILY MEAN =11.6 mps DATE OF OCCURRENCE =11/23
MINIMUM WIND GUST =1.4 mps DATE OF OCCURRENCE =11/28 AT 0900 MINUMUM DAILY MEAN =2.5 mps DATE OF OCCURRENCE =11/29
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.2%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
WIND GUST in mps for DECEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 1.9 2.2 1.8 2.6 2.5 2.3 3.2 3.6 1.8 1.8 4.8 3.2 3.5 3.9 2.9 3.1 1.7 1.3 1.2 1.8 2.8 2.8 2.0 2.5 2.5 4.8 1.2
2 2.4 2.3 2.3 2.4 1.9 1.9 1.9 1.8 1.9 2.0 3.2 3.2 3.7 3.7 3.1 3.0 1.6 1.7 2.0 1.3 1.7 1.3 1.7 1.5 2.2 3.7 1.3
3 2.0 1.8 2.2 2.4 2.2 1.5 2.5 0.8 2.2 2.3 2.7 3.0 3.2 3.3 3.2 2.3 1.6 1.9 1.7 1.6 1.6 1.4 1.9 1.9 2.1 3.3 0.8
4 1.6 1.6 2.4 2.0 2.0 1.5 2.3 2.2 1.9 2.0 3.5 3.3 3.5 3.5 4.1 3.7 1.5 2.4 1.8 1.8 1.5 2.2 2.3 2.8 2.4 4.1 1.5
5 2.2 1.8 1.7 2.0 3.0 2.0 1.8 1.8 1.9 2.4 3.0 3.4 4.1 3.4 3.4 2.7 1.8 3.2 3.0 1.6 2.2 1.6 1.8 2.0 2.4 4.1 1.6
6 2.7 3.0 2.9 3.1 2.9 2.6 2.9 2.7 2.3 3.3 4.4 4.2 3.0 3.9 3.9 3.5 2.0 2.8 1.9 2.3 3.6 2.6 2.6 2.8 3.0 4.4 1.9
7 2.7 2.9 2.9 2.8 2.6 2.8 1.7 2.3 2.3 2.3 3.6 4.1 3.3 3.4 3.4 3.4 2.5 2.0 2.2 1.6 2.0 4.0 2.5 2.7 2.7 4.1 1.6
8 3.3 3.4 3.9 2.4 3.8 3.0 3.0 2.5 2.3 2.6 4.3 3.6 4.5 6.7 7.7 6.6 4.3 2.4 5.9 6.7 6.2 5.0 7.1 5.9 4.4 7.7 2.3
9 6.7 7.3 5.0 5.5 5.8 7.0 5.2 5.2 5.2 3.1 6.3 9.1 10.4 12.2 9.6 6.8 5.8 4.7 4.3 4.9 3.0 4.8 4.1 3.8 6.1 12.2 3.0
10 2.0 2.8 4.0 4.3 3.2 2.5 3.1 2.5 2.2 3.4 5.0 5.3 5.4 4.6 3.8 1.8 1.9 2.2 2.9 3.6 2.9 3.6 3.3 3.3 3.3 5.4 1.8
11 2.5 3.6 3.2 1.7 2.7 1.5 1.5 1.5 1.5 1.3 5.6 8.9 7.5 6.9 5.2 4.3 3.8 3.0 2.5 2.8 2.6 2.9 1.8 3.9 3.4 8.9 1.3
12 4.6 4.8 3.6 6.0 4.6 4.6 4.1 6.6 5.5 12.2 12.0 13.1 12.1 11.9 9.3 8.4 7.2 5.7 5.1 6.9 14.1 10.7 12.2 9.6 8.1 14.1 3.6
13 5.5 4.3 4.9 4.1 5.6 3.3 1.9 1.0 0.9 1.9 2.8 3.2 3.8 2.6 2.0 3.2 1.8 2.2 2.7 3.2 3.9 4.5 2.6 3.7 3.1 5.6 0.9
14 3.4 5.8 6.0 5.7 6.2 9.4 7.7 11.9 11.1 13.7 15.0 16.3 14.6 13.4 15.3 12.0 11.3 16.5 20.1 16.5 16.9 13.4 18.4 13.5 12.3 20.1 3.4
15 15.3 14.5 7.4 9.8 11.5 11.6 12.3 12.2 6.2 3.6 4.1 2.8 7.3 10.4 10.1 8.3 6.2 3.7 3.2 4.2 4.3 4.3 5.1 4.5 7.6 15.3 2.8
16 4.4 4.4 3.9 3.4 2.9 2.9 2.4 2.9 9.0 12.7 11.9 10.7 10.7 9.1 9.6 6.1 2.7 7.9 5.0 4.3 3.1 5.4 3.2 3.4 5.9 12.7 2.4
17 4.3 4.7 6.6 4.9 3.9 4.2 3.2 2.0 3.0 3.3 2.4 6.1 7.9 8.7 7.9 5.4 4.2 3.9 4.3 4.5 5.2 5.0 5.6 2.9 4.8 8.7 2.0
18 3.7 3.0 3.9 4.0 1.7 2.0 2.8 1.6 2.6 2.3 5.5 5.3 9.6 9.1 4.8 3.4 2.6 3.6 4.0 3.1 3.4 2.8 2.7 3.2 3.8 9.6 1.6
19 3.8 4.1 4.3 6.2 5.5 5.4 6.6 6.1 4.4 4.3 3.1 3.3 3.3 4.4 3.2 2.5 1.8 1.9 2.2 2.7 4.7 1.9 3.3 5.2 3.9 6.6 1.8
20 2.8 2.5 3.3 2.5 2.2 4.2 3.6 2.2 1.9 2.7 2.5 4.1 4.2 4.3 3.3 2.4 1.0 2.0 2.0 1.8 1.9 2.9 2.3 1.9 2.7 4.3 1.0
21 2.3 3.0 3.8 4.1 4.9 1.9 3.0 3.8 7.4 8.1 10.1 6.3 4.2 5.8 6.0 4.3 3.8 4.2 3.3 4.8 3.8 3.1 5.5 6.7 4.8 10.1 1.9
22 3.7 4.9 3.7 3.7 3.2 2.0 2.5 2.0 2.4 2.2 1.6 4.2 2.8 5.0 3.2 2.7 2.3 1.8 3.0 1.9 2.4 1.5 2.7 3.5 2.9 5.0 1.5
23 2.8 3.0 3.0 2.3 2.0 2.9 3.4 3.0 3.5 2.7 3.7 4.1 3.7 2.4 2.9 2.9 3.1 3.3 3.0 3.6 3.3 3.5 3.9 4.1 3.1 4.1 2.0
24 5.9 5.5 4.9 4.5 4.0 4.2 2.4 2.4 4.9 3.3 5.9 8.0 8.2 12.2 9.7 9.6 9.4 8.8 8.4 11.2 9.6 8.3 5.6 3.9 6.7 12.2 2.4
25 14.6 9.1 5.4 7.0 4.5 1.5 1.6 2.6 3.1 9.5 8.2 6.0 5.0 5.5 4.7 3.7 3.1 1.5 1.3 1.6 2.2 2.2 2.0 2.2 4.5 14.6 1.3
26 4.0 3.4 2.4 7.1 9.3 6.6 3.6 4.9 12.9 14.4 13.0 12.8 12.3 12.0 11.1 8.9 8.8 7.5 4.3 8.9 7.2 3.1 3.6 3.5 7.7 14.4 2.4
27 4.1 4.2 3.0 4.7 8.0 7.5 6.5 8.3 8.8 8.5 9.9 11.7 10.0 9.3 6.0 8.9 19.8 22.2 15.9 17.7 13.8 5.2 4.6 5.2 9.3 22.2 3.0
28 3.3 4.4 3.5 2.6 10.7 10.2 9.9 8.3 9.5 9.2 8.6 11.7 6.9 6.2 4.8 5.1 4.7 2.9 3.2 2.8 4.6 3.4 3.0 2.8 5.9 11.7 2.6
29 2.7 9.6 11.7 12.4 8.9 3.5 4.9 5.5 8.8 9.8 12.3 13.8 14.1 12.8 12.1 8.8 13.0 8.1 6.6 5.8 6.0 10.0 15.0 9.2 9.4 15.0 2.7
30 8.5 10.0 10.7 9.0 5.7 8.6 9.4 9.8 8.9 4.8 8.2 10.0 10.2 8.6 6.9 4.3 4.8 3.3 3.6 3.6 3.5 2.2 4.3 4.4 6.8 10.7 2.2
31 3.2 3.1 3.4 4.3 2.5 3.2 2.0 1.6 1.1 2.3 2.9 4.3 5.1 5.2 3.6 2.8 4.5 2.6 2.9 4.0 2.9 2.5 3.0 3.4 3.2 5.2 1.1
MEAN 4.3 4.5 4.2 4.5 4.5 4.1 4.0 4.0 4.6 5.1 6.1 6.7 6.7 6.9 6.0 5.0 4.7 4.6 4.3 4.6 4.7 4.1 4.5 4.2 4.9
MAX 15.3 14.5 11.7 12.4 11.5 11.6 12.3 12.2 12.9 14.4 15.0 16.3 14.6 13.4 15.3 12.0 19.8 22.2 20.1 17.7 16.9 13.4 18.4 13.5 22.2
MIN 1.6 1.6 1.7 1.7 1.7 1.5 1.5 0.8 0.9 1.3 1.6 2.8 2.8 2.4 2.0 1.8 1.0 1.3 1.2 1.3 1.5 1.3 1.7 1.5 0.8
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =4.9 mps
MAXIMUM WIND GUST =22.2 mps DATE OF OCCURRENCE =12/27 AT 1800 MAXIMUM DAILY MEAN =12.3 mps DATE OF OCCURRENCE =12/14
MINIMUM WIND GUST =0.8 mps DATE OF OCCURRENCE =12/3 AT 0800 MINUMUM DAILY MEAN =2.1 mps DATE OF OCCURRENCE =12/3
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for October, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 054/01.9 176/02.1 138/01.1 226/03.3 225/03.9 226/03.2 217/02.6 075/01.0 114/01.5 087/02.2 051/02.4 052/02.7 048/02.6
2 225/02.4 227/01.5 252/01.3 265/02.0 250/01.9 218/02.3 230/03.6 283/01.7 029/01.2 048/01.8 058/02.2 067/03.0 064/03.1
3 265/01.5 258/01.4 225/02.2 195/01.9 216/03.0 226/03.3 226/02.8 093/01.3 037/01.6 035/02.2 047/02.6 051/02.5 049/02.4
4 221/04.5 219/06.2 219/06.4 208/04.7 197/06.8 190/05.4 193/04.3 185/07.4 175/08.3 174/10.2 171/10.0 166/09.4 159/08.4
5 298/06.7 305/06.6 318/05.3 301/02.3 251/02.5 289/02.2 242/03.8 326/02.7 054/02.5 051/02.7 007/03.8 025/04.1 009/04.9
6 230/03.2 230/02.0 209/02.1 220/02.9 228/02.1 228/02.7 231/02.5 085/01.1 109/02.1 075/02.2 120/02.7 035/03.2 034/03.0
7 234/02.9 251/02.2 227/03.4 231/03.4 226/04.5 224/04.2 218/03.1 334/01.2 007/01.1 054/02.0 033/02.2 048/02.5 049/02.8
8 229/02.0 228/03.4 228/03.7 227/03.7 227/04.3 219/03.4 219/01.7 232/01.9 097/01.6 135/03.3 092/03.3 063/03.4 013/03.5
9 212/04.0 200/04.2 194/05.6 214/03.3 216/04.3 224/04.4 216/04.3 196/02.4 181/05.7 166/06.7 151/04.9 153/05.3 154/04.7
10 189/06.7 198/06.2 193/06.6 ------------------------------
11 ---------------------------------------
12 ---------------------------------------
13 ---------------------------------------
14 ---------------------------------------
15 ---------------------------------------
16 ------------------------------161/09.5 156/08.5 158/07.6
17 292/08.1 232/04.1 070/02.5 106/01.6 171/01.7 058/01.9 141/01.7 138/01.4 128/00.8 031/01.9 048/02.6 033/03.3 034/03.3
18 311/04.3 292/05.6 318/05.7 009/04.9 011/05.9 360/07.2 001/06.7 345/05.8 353/08.5 356/09.0 358/09.2 324/07.1 316/06.8
19 351/01.8 351/02.6 350/02.9 341/02.9 344/02.6 357/02.9 348/02.9 345/04.1 033/02.7 034/02.6 035/02.6 027/02.9 032/03.9
20 313/01.3 171/01.4 203/00.9 360/01.0 188/01.2 124/01.1 201/02.2 013/01.7 030/01.8 058/01.8 068/01.7 093/02.0 133/03.7
21 191/05.5 187/06.2 188/05.8 191/05.0 189/06.4 185/07.8 186/07.5 184/06.4 169/07.7 169/08.8 166/08.3 169/08.1 171/07.8
22 183/08.7 197/07.6 208/02.7 201/04.6 206/05.6 210/03.4 208/03.8 191/05.9 174/06.6 161/07.2 158/06.1 153/05.7 150/05.6
23 184/05.7 184/06.8 182/06.4 182/07.8 184/08.5 181/06.8 185/05.6 187/04.7 168/04.3 168/07.0 168/09.1 161/08.3 169/09.1
24 261/09.0 304/16.1 302/14.4 315/10.6 340/06.9 340/07.6 345/07.0 002/05.4 008/03.9 339/02.9 017/04.6 037/03.9 041/02.6
25 215/02.6 178/01.6 178/01.7 117/01.3 216/02.6 207/04.3 191/02.3 205/02.1 093/01.0 040/01.6 013/02.3 030/01.9 051/02.0
26 192/05.4 070/01.6 220/03.1 184/03.2 087/01.5 216/03.8 268/02.4 195/03.8 112/01.7 084/02.6 044/01.6 055/02.4 051/02.2
27 211/05.0 190/07.6 189/07.4 180/05.1 163/03.3 127/01.8 183/01.7 197/01.8 198/02.8 183/06.5 185/07.1 171/08.0 176/07.0
28 167/10.2 170/08.9 177/06.9 172/06.7 163/06.2 170/07.0 172/07.1 174/07.6 176/10.2 179/09.2 169/08.5 185/06.1 032/04.5
29 013/05.7 023/02.9 357/03.4 358/05.4 010/06.3 355/05.0 333/06.6 335/06.1 329/08.2 321/08.7 314/13.0 320/10.5 310/09.8
30 345/04.7 307/03.6 289/04.2 347/02.4 346/02.6 003/01.8 047/01.2 139/01.1 044/00.9 117/00.9 147/01.5 146/01.7 156/01.7
31 188/07.0 190/07.2 188/06.4 184/05.7 193/06.5 184/08.6 190/08.3 189/09.8 173/07.7 177/06.5 172/05.9 166/05.8 163/05.1
MEAN 235/04.8 221/04.8 218/04.5 220/04.0 214/04.2 214/04.3 216/04.0 191/03.7 098/03.9 091/04.6 091/05.1 087/04.9 079/04.7
MAX 167/10.2 304/16.1 302/14.4 315/10.6 184/08.5 184/08.6 190/08.3 189/09.8 176/10.2 174/10.2 314/13.0 320/10.5 310/09.8
MIN 313/01.3 171/01.4 203/00.9 360/01.0 188/01.2 124/01.1 047/01.2 075/01.0 128/00.8 117/00.9 147/01.5 146/01.7 156/01.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for October, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 041/02.7 061/02.7 043/02.5 056/01.9 359/01.5 209/01.8 221/02.5 223/03.7 223/04.5 220/05.0 223/04.8 136/02.7 220/05.0 075/01.0
2 058/02.7 054/02.8 053/02.6 012/02.9 341/02.6 220/04.4 214/03.8 219/04.0 223/04.8 266/02.9 309/02.2 278/02.6 223/04.8 029/01.2
3 052/03.0 064/02.7 044/02.5 038/02.5 003/01.7 223/02.1 230/02.4 226/04.5 224/04.8 222/05.7 223/05.2 232/02.7 222/05.7 093/01.3
4 161/08.8 180/09.9 186/09.2 186/06.0 190/04.8 196/04.5 231/03.8 253/04.7 278/07.8 302/07.2 300/07.4 202/06.9 174/10.2 231/03.8
5 346/06.3 344/06.0 025/05.6 027/04.3 010/03.1 298/01.9 252/02.4 242/02.7 232/03.0 236/03.4 242/02.9 317/03.8 298/06.7 298/01.9
6 034/03.0 043/02.9 013/02.9 015/03.4 353/02.2 208/02.7 220/03.4 222/03.9 245/02.7 249/02.7 237/03.2 224/02.7 222/03.9 085/01.1
7 064/02.7 064/03.2 015/03.9 022/03.1 156/01.8 224/03.1 230/02.8 240/02.0 234/02.7 219/02.5 231/02.3 248/02.7 226/04.5 007/01.1
8 031/03.1 045/03.0 069/02.8 107/01.8 180/00.9 222/03.2 222/03.2 221/03.6 227/03.0 226/03.8 224/04.1 199/03.0 227/04.3 180/00.9
9 145/04.3 077/04.2 061/03.1 048/02.2 327/02.2 224/03.4 223/03.8 224/04.3 229/04.0 223/04.5 198/06.4 193/04.3 166/06.7 048/02.2
10 ------------------------------------189/06.7 198/06.2
11 ------------------------------------------
12 ------------------------------------------
13 ------------------------------------------
14 ------------------------------------------
15 ------------------------------------------
16 157/08.7 161/08.1 164/07.7 163/07.6 179/05.6 178/04.3 189/03.8 190/06.0 185/04.6 184/06.3 187/04.8 ---161/09.5 189/03.8
17 021/02.7 008/01.6 077/01.2 234/02.2 210/02.2 294/05.4 309/08.4 310/08.1 310/09.7 326/06.6 002/03.9 021/03.6 310/09.7 128/00.8
18 319/07.0 332/06.2 353/07.3 348/08.3 340/07.7 340/06.9 341/06.0 335/04.2 338/04.1 342/04.5 322/02.2 339/06.3 358/09.2 322/02.2
19 042/03.3 021/03.5 028/04.6 028/03.4 323/02.0 233/01.8 270/02.1 225/01.9 319/01.7 232/01.9 344/01.6 354/02.7 028/04.6 344/01.6
20 170/08.5 174/08.2 177/07.6 176/06.6 178/06.3 205/05.1 209/04.3 195/05.5 191/06.6 186/06.4 191/03.8 168/03.8 170/08.5 203/00.9
21 168/07.6 169/07.4 163/06.7 178/04.7 196/04.5 193/05.5 173/04.4 176/06.0 184/05.5 184/05.7 180/07.1 180/06.5 169/08.8 173/04.4
22 163/05.2 165/04.8 159/04.8 163/03.4 203/03.6 214/04.5 177/02.7 195/01.8 222/03.7 213/04.0 194/03.1 186/04.8 183/08.7 195/01.8
23 167/08.0 160/07.1 164/06.2 167/05.3 182/05.1 182/06.8 169/06.7 178/07.9 188/09.3 196/12.6 194/10.3 177/07.3 196/12.6 168/04.3
24 040/02.9 020/02.5 036/02.5 028/02.5 328/01.5 247/01.2 227/02.9 216/02.9 217/02.8 066/00.8 212/02.5 341/05.0 304/16.1 066/00.8
25 039/01.8 043/02.3 061/02.1 072/01.1 111/01.4 137/01.7 199/02.8 193/04.1 181/03.1 191/05.1 184/07.7 142/02.5 184/07.7 093/01.0
26 044/02.4 045/02.1 048/02.1 070/00.8 209/02.7 208/02.1 222/03.5 202/03.2 216/03.6 215/04.0 207/04.2 155/02.7 192/05.4 070/00.8
27 171/06.6 175/05.4 170/08.1 174/07.2 182/07.9 172/08.6 169/11.6 165/11.3 165/10.8 167/09.2 167/09.9 176/06.7 169/11.6 183/01.7
28 061/03.7 073/02.2 045/01.7 331/04.7 312/08.4 307/09.5 315/09.5 353/06.3 003/06.0 007/06.6 017/05.9 141/06.8 167/10.2 045/01.7
29 311/11.8 315/12.5 312/09.5 316/07.4 347/03.6 358/04.5 316/06.1 286/04.7 302/05.5 294/04.6 328/03.1 331/06.9 314/13.0 023/02.9
30 048/02.4 158/01.5 226/01.7 213/01.1 209/02.4 196/03.5 207/03.6 201/05.0 195/06.2 195/05.5 195/05.6 184/02.8 195/06.2 044/00.9
31 153/05.0 035/02.5 216/03.6 225/04.1 228/03.4 223/02.3 209/01.6 252/03.0 100/02.0 168/01.4 354/01.8 188/05.1 189/09.8 168/01.4
MEAN 073/05.0 069/04.6 071/04.5 073/03.9 244/03.6 221/04.0 224/04.3 223/04.6 226/04.9 223/04.9 231/04.6 199/04.4
MAX 311/11.8 315/12.5 312/09.5 348/08.3 312/08.4 307/09.5 169/11.6 165/11.3 165/10.8 196/12.6 194/10.3 304/16.1
MIN 039/01.8 158/01.5 077/01.2 070/00.8 180/00.9 247/01.2 209/01.6 195/01.8 319/01.7 066/00.8 344/01.6 070/00.8
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =593 DATA RECOVERY RATE = 79.7%
MONTHLY MEAN = 199/04.4 MAXIMUM WIND SPEED =16.1 AT 304 DEGREES DATE OF OCCURRENCE = 10/24 AT 200
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for November, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 340/01.8 338/01.5 258/01.6 234/02.2 226/03.6 226/03.9 218/03.5 211/03.6 224/01.4 069/01.6 143/04.6 171/07.2 170/06.8
2 186/05.5 194/06.8 195/07.3 189/07.3 191/06.6 195/06.1 186/06.5 177/04.1 175/04.5 157/06.0 157/06.3 149/04.8 039/03.2
3 211/01.6 028/03.3 018/02.5 343/06.4 353/06.6 352/07.6 348/07.8 346/07.8 349/08.4 349/07.9 346/09.7 349/09.2 357/06.6
4 334/07.8 325/06.7 327/06.8 337/05.5 333/06.7 319/07.0 326/06.1 323/06.4 329/05.7 012/04.5 016/05.1 324/04.9 298/05.0
5 174/07.2 165/04.8 153/03.2 184/07.2 228/02.5 021/02.5 245/01.3 352/01.9 339/05.9 329/06.9 318/09.4 314/07.1 316/10.0
6 343/06.3 340/05.7 336/06.2 327/07.0 332/04.9 091/02.0 058/02.2 006/02.8 347/05.4 355/06.5 005/05.1 348/07.4 342/06.4
7 344/03.0 331/02.8 339/02.7 336/02.9 321/02.8 333/02.8 009/02.2 010/01.2 031/01.2 012/01.6 022/03.2 018/04.2 032/03.2
8 202/00.8 198/01.6 206/01.1 304/01.3 340/01.5 302/00.8 272/01.1 247/01.4 025/00.8 058/01.5 021/01.8 042/02.0 030/02.2
9 226/00.7 323/01.2 248/01.6 144/00.8 244/02.2 203/01.5 291/01.0 238/02.1 082/00.9 059/01.3 066/01.8 042/02.1 061/02.2
10 202/03.9 221/02.8 231/02.1 211/04.6 199/06.1 187/06.7 196/03.9 190/03.8 160/03.2 062/01.9 181/04.2 179/05.2 173/06.2
11 177/06.4 175/09.9 180/08.0 182/07.5 174/07.5 183/09.1 181/06.3 141/02.7 303/02.5 182/06.2 172/08.9 173/12.1 174/09.6
12 176/06.3 194/08.7 193/08.1 245/03.5 290/04.3 267/02.6 300/04.4 295/07.1 311/09.0 311/08.2 310/09.5 305/09.0 298/10.7
13 223/04.2 222/05.2 217/04.8 202/04.7 203/05.1 195/05.6 196/05.4 182/04.8 168/05.0 155/04.9 146/04.2 157/05.3 168/08.9
14 179/05.3 169/09.2 187/07.3 189/08.8 188/08.8 187/07.7 187/05.4 186/03.8 180/02.4 148/04.2 043/03.0 047/02.2 031/01.9
15 180/06.6 182/07.3 186/07.4 192/07.0 188/07.2 188/07.0 193/05.8 183/06.2 179/06.2 165/07.0 179/07.3 195/07.9 207/07.7
16 157/01.5 043/01.1 143/01.3 084/01.1 330/00.9 027/01.4 169/01.2 085/01.8 139/01.1 112/01.8 092/01.8 057/02.3 066/01.6
17 235/01.5 231/01.4 227/02.9 222/03.5 223/03.6 212/03.3 240/02.1 233/01.1 166/01.9 161/03.8 154/03.9 155/04.7 125/03.4
18 198/04.8 193/02.6 185/03.9 182/09.2 186/08.6 179/08.0 181/11.7 187/11.0 279/09.1 298/09.6 306/11.5 297/10.4 308/05.5
19 320/05.3 321/04.5 335/02.8 309/03.2 277/03.3 305/04.9 286/04.9 261/03.9 024/01.7 070/02.1 321/02.7 010/02.4 042/02.5
20 176/04.0 189/04.3 175/07.5 175/07.4 184/05.0 177/07.6 187/07.1 180/09.1 176/08.8 184/09.6 167/09.3 162/09.1 160/07.1
21 192/08.7 190/10.5 192/05.1 191/05.3 183/05.2 171/03.7 180/04.4 178/04.3 184/06.9 190/06.7 180/06.5 177/06.4 166/06.9
22 177/04.8 174/04.8 179/03.2 189/04.9 185/05.5 217/03.6 192/06.1 197/05.8 205/04.2 190/05.0 ------174/07.8
23 165/08.8 165/10.6 165/11.8 166/11.3 165/10.6 164/10.2 163/09.3 166/10.0 179/09.5 192/07.4 158/04.9 174/06.1 199/05.5
24 012/05.5 018/04.2 016/03.0 011/02.2 346/02.5 318/04.9 340/02.2 332/01.0 121/00.9 031/01.5 015/02.1 051/01.9 038/02.2
25 224/04.5 220/04.7 205/04.1 205/06.0 212/05.6 205/04.1 208/05.2 199/06.6 185/03.9 173/04.7 176/04.9 176/06.5 175/08.1
26 179/05.8 182/09.3 179/11.5 178/10.5 174/10.4 172/11.4 172/12.5 175/12.3 177/10.8 175/10.5 176/09.5 175/08.7 175/06.3
27 338/05.6 002/05.2 350/05.9 321/07.6 359/04.3 013/03.9 010/04.1 008/02.8 012/04.1 007/03.7 359/04.1 001/02.7 078/02.9
28 224/03.0 224/02.8 229/01.8 224/03.0 223/03.4 225/02.3 219/01.5 254/01.4 221/01.3 075/01.4 097/02.5 142/03.9 140/03.5
29 228/02.4 231/02.3 228/01.6 215/02.8 261/02.0 242/02.4 241/02.5 264/02.4 302/02.2 096/01.4 121/02.7 036/01.8 018/03.3
30 216/01.7 222/03.3 214/02.6 208/02.1 213/02.1 217/02.5 203/01.7 241/01.8 194/01.3 354/01.1 103/02.1 003/02.7 040/01.6
MEAN 210/04.5 217/05.0 212/04.7 215/05.2 232/05.0 218/04.9 220/04.6 222/04.5 197/04.3 096/04.7 104/05.3 087/05.5 091/05.3
MAX 165/08.8 165/10.6 165/11.8 166/11.3 165/10.6 172/11.4 172/12.5 175/12.3 177/10.8 175/10.5 306/11.5 173/12.1 298/10.7
MIN 226/00.7 043/01.1 206/01.1 144/00.8 330/00.9 302/00.8 291/01.0 332/01.0 025/00.8 354/01.1 021/01.8 036/01.8 066/01.6
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for November, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 155/05.8 170/04.2 175/03.9 186/04.8 197/03.6 201/02.9 214/02.4 211/02.6 196/01.7 177/05.4 185/05.8 199/03.6 171/07.2 224/01.4
2 016/03.5 007/02.5 104/02.8 220/01.9 221/01.9 233/01.4 177/03.0 172/04.5 183/05.9 196/06.6 270/03.5 184/04.7 189/07.3 233/01.4
3 356/06.5 344/06.7 315/06.1 316/09.7 329/06.3 337/09.4 345/09.4 343/09.5 327/08.5 335/07.5 333/07.9 343/07.2 316/09.7 211/01.6
4 319/02.9 019/03.8 025/03.7 057/02.3 286/01.4 221/03.5 216/03.8 197/06.4 194/04.6 188/06.8 179/08.2 319/05.2 179/08.2 286/01.4
5 314/10.4 328/09.8 359/04.5 338/07.7 358/06.3 335/05.3 325/06.2 345/08.2 347/08.5 344/09.3 348/08.4 327/06.4 314/10.4 245/01.3
6 351/07.9 344/07.3 338/07.6 336/07.9 333/07.0 346/08.2 342/05.4 338/05.8 324/04.8 320/03.3 339/04.2 347/05.7 346/08.2 091/02.0
7 022/03.0 030/04.2 041/03.5 033/03.1 323/01.3 327/00.9 321/01.3 330/01.8 275/00.9 291/00.9 348/00.7 352/02.3 018/04.2 348/00.7
8 036/02.0 033/01.9 038/01.3 020/00.6 253/00.9 174/01.4 229/02.7 261/01.9 220/02.4 343/01.3 221/01.3 309/01.5 229/02.7 020/00.6
9 075/02.2 064/02.0 064/01.4 229/01.4 213/02.5 221/03.1 216/03.6 239/02.1 234/01.8 226/03.1 216/03.8 213/01.9 216/03.8 226/00.7
10 166/07.6 161/06.8 167/05.9 175/04.9 183/03.4 201/02.9 238/02.7 234/03.3 219/04.4 188/07.8 176/07.1 191/04.6 188/07.8 062/01.9
11 169/10.7 162/09.6 180/12.2 180/12.6 187/11.3 187/07.4 154/03.6 155/05.1 166/08.4 179/11.2 170/08.9 175/08.2 180/12.6 303/02.5
12 305/07.0 303/04.8 335/04.0 029/01.7 332/03.6 233/02.2 216/03.7 225/03.3 218/04.1 216/03.9 223/04.0 271/05.6 298/10.7 029/01.7
13 178/08.2 181/06.1 176/05.0 215/02.3 192/03.6 194/03.7 181/04.1 186/06.3 188/06.1 174/06.1 176/06.6 186/05.3 168/08.9 215/02.3
14 019/02.7 054/02.5 066/01.6 154/00.9 229/02.8 215/01.3 182/04.6 176/03.8 167/03.7 186/02.5 174/07.2 166/04.3 169/09.2 154/00.9
15 208/09.1 197/08.1 237/06.3 224/03.9 258/02.3 260/02.1 277/02.5 270/01.5 335/01.4 182/01.5 179/00.8 205/05.4 208/09.1 179/00.8
16 064/01.8 065/02.2 061/01.3 327/03.0 007/02.4 128/01.2 077/00.8 231/01.9 232/02.5 227/01.9 229/01.4 090/01.6 327/03.0 077/00.8
17 135/03.8 142/02.9 137/02.6 171/03.3 193/01.9 188/03.3 212/03.9 222/02.4 222/01.5 182/04.2 180/04.2 191/03.0 155/04.7 233/01.1
18 312/05.3 321/07.1 322/05.5 353/04.6 344/04.2 326/06.2 353/03.9 333/04.7 335/03.8 319/04.5 316/05.7 289/06.7 181/11.7 193/02.6
19 043/02.7 075/02.7 100/02.1 290/01.6 200/02.8 221/03.9 221/03.9 199/03.6 170/03.5 181/04.7 187/03.9 296/03.3 320/05.3 290/01.6
20 147/05.3 163/08.6 165/06.6 186/05.2 185/03.6 162/03.1 166/03.0 172/05.1 174/07.4 177/06.8 193/06.3 174/06.5 184/09.6 166/03.0
21 157/05.7 156/04.8 148/04.3 167/03.4 195/03.3 184/03.2 193/02.3 199/03.6 190/03.6 173/02.7 170/05.4 179/05.1 190/10.5 193/02.3
22 174/06.6 172/07.1 152/06.1 157/05.4 161/03.9 190/04.3 226/02.2 172/05.5 179/08.1 171/09.9 170/09.5 182/05.6 171/09.9 226/02.2
23 203/09.3 203/08.0 188/04.7 196/05.1 188/05.8 200/04.9 143/04.5 176/02.1 047/01.2 025/04.7 005/06.9 173/07.2 165/11.8 047/01.2
24 036/02.7 028/02.1 006/02.1 352/01.8 235/02.8 231/02.7 223/02.8 225/03.8 223/04.2 225/03.9 226/04.1 349/02.8 012/05.5 121/00.9
25 167/07.9 159/05.3 168/05.0 170/03.4 046/02.1 178/06.2 187/10.2 163/05.6 181/03.7 185/03.8 183/06.4 185/05.3 187/10.2 046/02.1
26 174/05.8 173/06.0 179/06.7 104/04.2 268/03.6 ------------------176/08.6 172/12.5 268/03.6
27 077/02.6 035/03.1 016/01.8 033/01.2 221/02.2 196/01.7 243/01.1 267/01.6 311/01.3 238/02.4 227/03.3 350/03.3 321/07.6 243/01.1
28 076/01.7 068/00.9 093/01.2 352/00.8 253/01.2 229/02.9 223/03.6 208/02.6 226/01.5 257/01.2 245/01.4 211/02.1 142/03.9 352/00.8
29 025/02.5 048/01.3 055/01.4 336/00.8 193/01.6 245/02.5 233/02.5 222/01.5 231/01.6 220/01.6 209/01.5 241/02.0 018/03.3 336/00.8
30 058/01.6 053/01.7 051/01.0 202/01.4 202/02.2 132/02.3 158/01.7 120/01.8 157/01.4 221/01.6 223/01.7 184/01.9 222/03.3 051/01.0
MEAN 079/05.2 080/04.8 091/04.1 224/03.7 234/03.4 214/03.6 216/03.6 217/03.9 217/03.9 214/04.5 212/04.8 207/04.5
MAX 169/10.7 328/09.8 180/12.2 180/12.6 187/11.3 337/09.4 187/10.2 343/09.5 347/08.5 179/11.2 170/09.5 180/12.6
MIN 058/01.6 068/00.9 051/01.0 020/00.6 253/00.9 327/00.9 077/00.8 270/01.5 275/00.9 291/00.9 348/00.7 020/00.6
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =712 DATA RECOVERY RATE = 98.9%
MONTHLY MEAN = 207/04.5 MAXIMUM WIND SPEED =12.6 AT 180 DEGREES DATE OF OCCURRENCE = 11/11 AT 1700
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for December, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13
Day
1 154/01.0 252/01.3 243/01.3 211/01.4 229/02.1 212/01.8 219/02.1 188/02.2 161/01.1 123/01.5 023/01.4 059/01.5 049/01.8
2 021/01.2 273/00.8 215/01.1 167/00.9 153/01.1 190/00.8 231/00.9 193/00.8 140/00.8 065/00.9 064/01.6 048/01.3 045/01.7
3 194/01.4 182/01.3 155/00.9 273/00.9 265/01.6 183/01.0 042/01.0 203/00.9 158/00.6 054/00.9 034/01.0 061/01.6 035/01.4
4 057/00.9 175/01.2 003/01.4 222/01.8 342/01.5 305/01.3 096/01.2 042/01.1 173/01.4 038/01.2 065/01.5 062/01.6 056/01.6
5 248/01.5 205/01.5 051/00.8 282/01.2 169/01.5 170/00.6 258/01.0 260/00.9 321/00.6 109/01.2 042/01.1 066/01.8 040/01.7
6 199/02.5 200/02.4 262/01.3 246/01.6 029/01.3 344/02.2 244/01.4 205/01.6 157/01.6 032/01.5 018/02.0 012/02.1 053/01.6
7 297/01.2 205/01.3 195/01.5 299/01.6 224/03.1 259/02.0 328/01.9 228/02.6 033/01.3 248/01.0 121/01.8 064/01.6 117/02.1
8 184/06.1 197/04.4 330/02.1 319/01.6 087/01.2 353/01.0 349/01.9 066/01.1 161/01.5 067/01.7 087/02.1 001/03.3 029/03.0
9 319/06.7 348/05.5 316/04.2 315/04.9 331/05.9 310/05.2 326/05.9 329/04.7 339/04.3 340/03.7 321/05.3 316/06.2 306/08.2
10 146/01.2 198/01.6 186/01.9 165/00.9 215/01.3 337/01.1 340/01.2 183/00.8 242/01.4 094/01.4 108/02.5 097/02.4 099/02.2
11 195/04.5 213/03.9 202/04.1 194/03.6 218/03.7 195/03.5 213/03.9 211/03.3 219/02.5 223/02.0 180/06.0 166/05.2 158/04.2
12 164/05.3 171/03.7 190/03.4 184/05.0 180/05.7 176/05.7 186/06.8 192/06.8 172/08.2 153/08.4 168/06.7 177/09.8 179/09.4
13 184/06.6 174/03.2 221/02.1 154/02.5 124/01.9 202/02.2 222/01.4 216/01.2 004/00.7 151/01.5 153/01.3 338/02.3 072/01.6
14 196/06.5 197/06.5 190/06.6 190/06.6 189/06.8 183/07.8 184/08.5 184/06.1 185/06.1 180/09.4 181/08.1 172/11.1 171/11.9
15 226/06.5 250/04.5 244/03.7 248/03.9 214/03.1 265/04.2 272/06.8 303/05.9 326/03.8 337/03.4 348/02.6 339/04.0 321/05.5
16 209/03.5 201/04.4 189/06.2 195/05.2 187/07.5 186/04.3 181/04.5 186/06.6 193/08.9 190/11.0 184/11.4 181/10.6 176/10.3
17 257/03.8 247/05.4 259/05.1 182/03.9 274/01.5 086/01.6 065/01.6 235/02.2 350/02.0 148/01.9 322/03.7 324/04.9 317/05.4
18 197/04.9 189/05.2 202/04.8 196/05.5 200/04.8 238/03.1 203/02.5 200/04.5 201/02.5 116/01.4 357/01.5 168/05.5 169/07.1
19 208/01.6 220/02.3 229/03.5 224/04.2 224/03.4 221/03.3 224/03.7 221/02.6 203/01.7 075/00.6 091/01.3 079/01.5 035/01.4
20 195/01.5 234/02.7 168/02.3 233/01.6 201/03.1 184/02.8 290/02.7 225/03.1 189/03.2 162/02.8 098/02.0 019/02.0 019/02.2
21 159/01.6 188/03.3 215/02.7 172/03.5 164/02.9 163/02.3 196/02.3 151/02.1 192/05.8 184/09.5 181/08.3 164/07.3 136/02.4
22 193/07.8 192/08.5 293/03.3 344/02.0 327/02.3 219/02.2 208/03.0 176/01.2 095/00.8 195/02.3 055/00.9 153/01.4 104/01.4
23 222/02.5 225/02.1 214/01.6 229/02.7 208/01.5 224/03.1 222/03.3 209/03.9 211/04.1 194/02.7 009/01.6 031/03.1 195/01.6
24 226/03.7 222/04.0 222/04.4 214/04.4 201/04.2 208/05.1 195/06.3 172/04.2 182/04.0 149/03.2 105/01.9 163/04.3 182/07.9
25 182/07.6 205/04.4 163/02.6 142/02.8 ------------------349/04.1 001/02.5 040/02.1
26 193/04.0 191/06.1 189/05.9 186/06.7 188/04.9 180/05.1 177/06.3 179/04.8 177/08.6 179/11.1 183/13.0 179/11.9 175/11.1
27 221/03.8 215/03.9 190/06.0 187/06.8 188/08.0 178/05.9 187/06.2 176/04.0 178/07.0 179/06.6 186/09.5 197/07.8 222/07.2
28 238/02.7 145/01.5 199/02.7 200/03.6 176/05.5 174/07.7 177/07.9 168/09.7 168/10.2 176/08.8 170/11.0 173/11.4 184/07.2
29 200/03.9 194/06.4 180/07.8 186/05.4 170/04.8 182/06.1 188/06.1 182/05.7 192/05.1 184/08.3 176/10.2 178/10.2 182/10.7
30 313/05.0 313/07.8 312/06.5 309/06.4 326/04.3 314/05.6 310/08.0 308/07.3 311/07.7 320/07.8 323/07.8 320/05.6 319/04.9
31 246/02.4 242/02.3 252/02.5 220/01.5 219/01.9 208/00.9 232/01.3 287/01.4 213/01.2 084/00.9 050/01.8 027/02.1 042/02.8
MEAN 208/03.7 210/03.7 218/03.4 215/03.4 205/03.4 211/03.3 223/03.7 205/03.4 190/03.6 141/03.9 085/04.3 081/04.8 095/04.6
MAX 193/07.8 192/08.5 180/07.8 187/06.8 188/08.0 183/07.8 184/08.5 168/09.7 168/10.2 179/11.1 183/13.0 179/11.9 171/11.9
MIN 057/00.9 273/00.8 051/00.8 273/00.9 153/01.1 170/00.6 231/00.9 193/00.8 321/00.6 075/00.6 055/00.9 048/01.3 104/01.4
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for December, 2024
Hr Beg 13 14 15 16 17 18 19 20 21 22 23
Hr End 14 15 16 17 18 19 20 21 22 23 24
Day MEAN MAX SPD MIN SPD
1 050/01.4 037/01.1 040/01.2 111/00.9 241/01.6 280/01.0 106/01.4 285/01.6 210/01.2 271/01.3 229/01.5 201/01.4 188/02.2 111/00.9
2 032/01.5 029/01.3 063/01.1 124/01.2 196/00.7 218/01.7 160/01.4 171/01.3 149/00.9 215/03.0 323/01.4 146/01.2 215/03.0 196/00.7
3 024/01.4 037/01.5 055/01.3 156/00.9 209/01.3 012/00.9 135/00.7 179/00.5 150/01.3 305/01.4 302/01.5 127/01.1 061/01.6 179/00.5
4 034/01.5 034/01.5 060/01.4 103/00.7 165/01.1 225/00.6 086/00.8 216/01.7 162/01.2 186/00.7 282/01.3 081/01.3 222/01.8 225/00.6
5 037/01.8 031/01.3 046/01.3 060/00.9 211/00.8 190/01.2 210/01.2 030/00.7 310/01.1 145/00.9 226/01.6 120/01.2 066/01.8 321/00.6
6 051/01.7 048/01.6 059/01.7 026/01.3 214/01.4 163/01.1 163/01.6 189/01.6 035/01.0 247/02.2 221/02.4 164/01.7 199/02.5 035/01.0
7 036/02.4 034/02.4 060/01.4 179/01.8 221/02.5 213/02.0 211/02.8 211/03.1 323/01.6 202/02.4 197/02.4 223/02.0 224/03.1 248/01.0
8 019/03.7 014/03.8 008/04.9 012/04.7 046/02.5 012/01.1 353/05.5 354/07.0 353/05.9 338/05.2 343/05.7 015/03.4 354/07.0 353/01.0
9 303/09.0 305/07.7 320/05.7 345/05.1 313/05.3 314/04.3 310/04.1 321/04.4 319/04.6 319/03.1 006/01.8 323/05.2 303/09.0 006/01.8
10 078/02.2 045/02.1 052/01.2 074/00.6 228/02.0 217/02.8 222/02.8 210/03.1 205/04.3 208/04.0 194/05.5 168/02.1 194/05.5 074/00.6
11 150/03.0 161/03.1 185/02.1 273/01.8 265/02.3 193/02.7 158/03.6 181/05.3 169/07.2 181/03.1 193/04.8 194/03.7 169/07.2 273/01.8
12 180/07.4 176/06.4 175/06.1 173/06.3 170/05.2 173/04.6 175/06.0 177/07.6 185/06.9 185/08.9 181/09.3 177/06.6 177/09.8 190/03.4
13 040/01.1 087/01.2 081/00.7 237/01.4 199/02.9 192/04.1 200/05.7 189/06.6 199/04.0 189/04.0 193/05.1 177/02.7 189/06.6 004/00.7
14 163/13.5 167/13.0 172/10.3 173/12.0 188/10.1 191/12.3 193/10.2 210/08.8 209/08.7 211/08.3 214/05.6 187/08.9 163/13.5 214/05.6
15 309/06.3 292/06.2 302/05.6 089/02.5 177/01.5 232/03.4 224/03.6 220/03.1 221/04.0 217/03.4 207/03.9 263/04.2 272/06.8 177/01.5
16 180/07.4 178/07.0 151/02.6 040/02.2 134/02.8 155/02.7 214/02.4 204/02.0 183/01.5 178/03.8 303/02.6 184/05.5 184/11.4 183/01.5
17 318/04.6 002/06.2 009/04.3 002/02.6 338/02.0 290/01.9 234/03.4 240/01.8 232/02.9 224/03.8 191/05.0 283/03.4 002/06.2 274/01.5
18 163/04.4 162/02.2 137/01.5 238/01.2 196/02.7 223/02.7 279/01.8 112/01.3 215/02.4 260/02.3 171/01.6 194/03.2 169/07.1 238/01.2
19 028/01.9 014/01.8 047/00.9 190/01.7 237/01.9 069/01.2 223/03.2 220/04.0 197/02.3 196/03.8 199/02.6 199/02.4 224/04.2 075/00.6
20 039/02.0 075/01.6 276/01.1 218/02.8 214/02.3 207/02.8 206/01.7 219/02.3 228/02.1 213/02.0 187/02.0 206/02.3 189/03.2 276/01.1
21 170/03.1 167/06.7 180/03.6 192/03.1 243/01.8 181/03.9 174/03.6 155/03.5 172/01.8 200/03.0 193/06.5 178/03.9 184/09.5 159/01.6
22 049/02.0 046/01.8 044/01.1 025/01.2 047/01.1 153/01.1 248/00.8 147/01.1 232/01.8 199/01.1 240/01.1 165/02.1 192/08.5 095/00.8
23 222/01.6 339/04.0 065/01.4 349/01.9 266/01.7 202/02.0 231/01.3 225/02.8 230/03.0 227/02.8 227/03.4 228/02.5 211/04.1 231/01.3
24 184/08.0 188/06.5 185/06.4 182/09.1 175/08.9 177/06.6 166/07.6 170/06.5 174/03.5 325/01.7 201/03.7 187/05.3 182/09.1 325/01.7
25 031/03.0 080/02.0 129/01.2 025/01.8 025/01.8 239/00.9 189/01.6 220/03.2 220/03.6 215/03.4 195/04.4 165/03.0 182/07.6 239/00.9
26 177/11.6 181/08.9 211/04.4 282/02.2 013/02.6 ---309/06.5 305/04.3 309/03.3 191/01.8 212/02.8 199/06.4 183/13.0 191/01.8
27 211/05.3 280/06.3 290/05.5 296/04.7 306/12.4 313/10.6 309/09.2 338/07.0 350/03.9 130/01.8 178/01.6 219/06.3 306/12.4 178/01.6
28 207/05.3 195/05.7 181/06.2 186/07.9 195/06.3 188/06.2 207/03.1 192/02.7 086/01.5 260/01.2 193/02.1 186/05.8 173/11.4 260/01.2
29 188/10.3 180/09.9 178/07.8 147/04.3 179/02.1 293/04.6 340/03.1 323/03.5 321/10.7 307/07.7 305/06.2 199/06.7 182/10.7 179/02.1
30 325/04.1 326/04.0 311/04.3 342/03.0 301/03.0 196/01.6 208/02.8 208/02.3 228/03.0 242/02.4 227/02.6 298/04.9 310/08.0 196/01.6
31 025/02.8 009/03.2 354/02.0 014/01.6 237/02.5 221/02.9 224/04.1 222/03.8 209/03.6 209/03.4 208/04.4 242/02.4 208/04.4 208/00.9
MEAN 062/04.4 054/04.3 075/03.2 108/03.0 220/03.1 212/03.2 209/03.5 211/03.5 216/03.4 221/03.2 219/03.4 202/03.6
MAX 163/13.5 167/13.0 172/10.3 173/12.0 306/12.4 191/12.3 193/10.2 210/08.8 321/10.7 185/08.9 181/09.3 163/13.5
MIN 040/01.1 037/01.1 081/00.7 074/00.6 196/00.7 225/00.6 135/00.7 179/00.5 149/00.9 186/00.7 240/01.1 179/00.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =737 DATA RECOVERY RATE = 99.1%
MONTHLY MEAN = 202/03.6 MAXIMUM WIND SPEED =13.5 AT 163 DEGREES DATE OF OCCURRENCE = 12/14 AT 1400
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for October, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.5 1.5 1.5 1.7 0.5 0.0 5.7 4.4
NNE 11.25 - 33.75 0.2 2.4 2.4 0.5 0.0 0.0 5.4 3.3
NE 33.75 - 56.25 0.3 7.9 0.7 0.0 0.0 0.0 8.9 2.4
ENE 56.25 - 78.75 0.8 2.9 0.7 0.0 0.0 0.0 4.4 2.3
E 78.75 - 101.25 0.7 0.8 0.2 0.0 0.0 0.0 1.7 1.9
ESE 101.25 - 123.75 0.8 0.8 0.0 0.0 0.0 0.0 1.7 1.6
SE 123.75 - 146.25 0.7 0.7 0.5 0.0 0.0 0.0 1.9 2.0
SSE 146.25 - 168.75 0.5 0.3 1.5 3.9 2.2 0.2 8.6 6.5
S 168.75 - 191.25 0.5 1.3 2.2 10.6 3.2 0.2 18.0 6.4
SSW 191.25 - 213.75 0.3 3.2 3.7 2.4 0.2 0.2 9.9 4.2
SW 213.75 - 236.25 0.2 6.2 9.3 0.7 0.0 0.0 16.4 3.4
WSW 236.25 - 258.75 0.5 1.7 0.5 0.0 0.0 0.0 2.7 2.6
W 258.75 - 281.25 0.0 0.8 0.0 0.2 0.2 0.0 1.2 4.0
WNW 281.25 - 303.75 0.0 0.7 0.5 1.2 0.0 0.2 2.5 5.5
NW 303.75 - 326.25 0.2 0.8 0.3 1.7 1.7 0.7 5.4 7.3
NNW 326.25 - 348.75 0.3 1.7 1.2 2.2 0.2 0.0 5.6 4.7
0.0
6.6 33.9 25.1 25.0 8.1 1.3 100.0 4.4
TOTAL NUMBER OF OBSERVATIONS =593
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =79.7%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for November, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.4 1.7 1.1 1.5 0.3 0.0 5.1 4.4
NNE 11.25 - 33.75 0.8 2.4 2.1 0.1 0.0 0.0 5.5 2.8
NE 33.75 - 56.25 0.8 2.2 0.3 0.0 0.0 0.0 3.4 2.1
ENE 56.25 - 78.75 0.8 2.8 0.0 0.0 0.0 0.0 3.7 1.8
E 78.75 - 101.25 0.6 0.7 0.0 0.0 0.0 0.0 1.3 1.7
ESE 101.25 - 123.75 0.1 0.7 0.1 0.0 0.0 0.0 1.0 2.3
SE 123.75 - 146.25 0.6 0.6 1.0 0.0 0.0 0.0 2.1 2.8
SSE 146.25 - 168.75 0.4 0.6 2.7 2.5 2.0 0.3 8.4 6.1
S 168.75 - 191.25 0.6 0.7 6.6 10.7 3.5 1.5 23.6 6.5
SSW 191.25 - 213.75 0.7 2.7 3.1 3.4 0.6 0.0 10.4 4.5
SW 213.75 - 236.25 1.8 6.0 4.8 0.1 0.0 0.0 12.8 2.7
WSW 236.25 - 258.75 1.1 1.8 0.1 0.1 0.0 0.0 3.2 2.1
W 258.75 - 281.25 0.4 1.0 0.6 0.0 0.1 0.0 2.1 2.8
WNW 281.25 - 303.75 0.6 0.4 0.7 0.1 0.4 0.0 2.2 4.5
NW 303.75 - 326.25 0.7 0.4 1.1 2.4 1.0 0.1 5.8 5.8
NNW 326.25 - 348.75 1.1 1.7 1.0 4.5 1.3 0.0 9.6 5.4
0.0
11.7 26.4 25.3 25.6 9.1 2.0 100.0 4.5
TOTAL NUMBER OF OBSERVATIONS =712
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =98.9%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for December, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.5 1.1 0.8 0.5 0.0 0.0 3.0 3.1
NNE 11.25 - 33.75 1.9 2.0 0.4 0.0 0.0 0.0 4.3 2.0
NE 33.75 - 56.25 3.3 2.6 0.0 0.0 0.0 0.0 5.8 1.5
ENE 56.25 - 78.75 1.8 1.6 0.0 0.0 0.0 0.0 3.4 1.4
E 78.75 - 101.25 1.5 0.9 0.0 0.0 0.0 0.0 2.4 1.5
ESE 101.25 - 123.75 1.1 0.5 0.0 0.0 0.0 0.0 1.6 1.5
SE 123.75 - 146.25 0.9 0.7 0.0 0.0 0.0 0.0 1.6 1.6
SSE 146.25 - 168.75 2.8 2.0 1.1 1.1 0.4 0.3 7.7 3.4
S 168.75 - 191.25 2.0 1.9 3.4 8.4 3.3 1.6 20.6 6.1
SSW 191.25 - 213.75 2.2 6.0 5.4 2.3 0.8 0.1 16.8 3.7
SW 213.75 - 236.25 1.2 6.1 4.2 0.4 0.0 0.0 11.9 2.8
WSW 236.25 - 258.75 1.6 1.6 0.8 0.1 0.0 0.0 4.2 2.2
W 258.75 - 281.25 1.2 0.9 0.1 0.3 0.0 0.0 2.6 2.1
WNW 281.25 - 303.75 0.7 0.9 0.4 0.5 0.1 0.0 2.7 3.3
NW 303.75 - 326.25 0.7 0.5 2.6 3.4 0.4 0.1 7.7 5.3
NNW 326.25 - 348.75 0.4 1.2 1.1 0.7 0.0 0.0 3.4 3.4
0.0
23.9 30.8 20.4 17.8 5.0 2.2 100.0 3.6
TOTAL NUMBER OF OBSERVATIONS =737
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =99.1%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott HiCountry
Joint Frequency Distribution for October - December 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.5 1.4 1.1 1.2 0.2 0.0 4.5 4.1
NNE 11.25 - 33.75 1.0 2.3 1.6 0.2 0.0 0.0 5.0 2.7
NE 33.75 - 56.25 1.6 4.0 0.3 0.0 0.0 0.0 5.9 2.0
ENE 56.25 - 78.75 1.2 2.4 0.2 0.0 0.0 0.0 3.8 1.9
E 78.75 - 101.25 0.9 0.8 0.0 0.0 0.0 0.0 1.8 1.6
ESE 101.25 - 123.75 0.7 0.7 0.0 0.0 0.0 0.0 1.4 1.7
SE 123.75 - 146.25 0.7 0.6 0.5 0.0 0.0 0.0 1.9 2.2
SSE 146.25 - 168.75 1.3 1.0 1.8 2.4 1.5 0.2 8.2 5.3
S 168.75 - 191.25 1.1 1.3 4.2 9.8 3.3 1.2 20.9 6.3
SSW 191.25 - 213.75 1.1 4.0 4.1 2.7 0.5 0.1 12.6 4.0
SW 213.75 - 236.25 1.1 6.1 5.9 0.4 0.0 0.0 13.5 3.0
WSW 236.25 - 258.75 1.1 1.7 0.5 0.1 0.0 0.0 3.4 2.3
W 258.75 - 281.25 0.6 0.9 0.2 0.1 0.1 0.0 2.0 2.7
WNW 281.25 - 303.75 0.4 0.7 0.5 0.6 0.2 0.0 2.5 4.3
NW 303.75 - 326.25 0.5 0.6 1.4 2.5 1.0 0.3 6.4 5.9
NNW 326.25 - 348.75 0.6 1.5 1.1 2.4 0.5 0.0 6.2 4.8
0.0
14.6 30.2 23.5 22.6 7.3 1.9 100.0 4.2
TOTAL NUMBER OF OBSERVATIONS =2042
POSSIBLE NUMBER OF OBSERVATIONS =2208
DATA RECOVERY =92.5%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for OCTOBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 3.8 4.0 2.2 5.1 5.4 4.6 4.6 2.2 3.1 4.3 5.1 4.8 5.7 5.1 5.1 4.9 4.3 3.1 3.6 4.2 5.4 5.8 6.5 6.3 4.6 6.5 2.2
2 5.5 3.7 3.7 3.8 3.9 5.5 6.3 3.7 2.6 3.9 4.9 5.3 6.0 6.2 5.8 6.4 5.7 5.7 6.4 6.1 6.5 6.8 5.1 5.1 5.2 6.8 2.6
3 3.1 3.6 4.9 4.2 5.3 5.1 4.7 3.6 3.2 5.1 4.9 4.7 4.8 5.9 5.5 5.2 4.5 3.1 4.4 4.6 6.0 6.1 7.1 6.7 4.9 7.1 3.1
4 6.3 7.7 8.5 6.7 9.6 9.3 10.0 12.0 13.7 15.2 15.1 12.9 13.3 14.0 19.5 17.3 15.3 11.5 7.4 8.7 10.6 15.7 14.7 17.6 12.2 19.5 6.3
5 14.1 15.2 14.0 5.8 5.6 7.1 7.1 6.8 5.0 5.4 10.0 8.4 9.8 14.3 10.9 10.4 7.3 5.7 3.9 4.4 5.1 5.6 5.1 4.5 8.0 15.2 3.9
6 5.0 4.5 4.1 4.7 3.9 4.4 4.6 2.8 4.9 5.5 4.9 6.5 6.0 6.6 6.1 7.2 6.9 4.8 4.5 5.5 5.9 4.6 4.6 5.1 5.2 7.2 2.8
7 4.8 4.7 5.1 5.5 5.8 5.4 5.5 2.9 2.9 4.1 4.9 4.9 5.1 4.8 6.1 6.9 5.3 3.5 6.0 5.3 4.5 4.7 5.4 4.7 5.0 6.9 2.9
8 4.3 5.1 5.9 5.6 6.0 5.7 3.2 3.4 3.9 5.6 6.5 6.6 6.3 5.9 5.8 5.0 4.8 3.2 5.2 4.7 5.8 5.0 5.1 5.4 5.2 6.6 3.2
9 6.7 6.4 8.4 7.1 7.9 7.0 6.0 4.6 10.9 10.6 8.6 9.4 8.7 7.5 8.2 5.7 4.1 4.1 5.2 4.9 5.5 5.5 8.3 9.2 7.1 10.9 4.1
10 9.6 9.8 11.0 ------------------------------------------------------------------------
11 ---------------------------------------------------------------------------------
12 ---------------------------------------------------------------------------------
13 ---------------------------------------------------------------------------------
14 ---------------------------------------------------------------------------------
15 ---------------------------------------------------------------------------------
16 ------------------------------14.1 13.9 14.9 16.9 14.7 12.9 16.7 11.5 7.0 9.7 11.2 10.7 14.1 8.9 ---------
17 17.9 9.1 6.8 3.3 2.7 5.0 3.8 2.6 1.7 4.7 5.0 5.6 5.8 5.2 3.6 2.5 3.5 5.3 15.0 15.6 13.8 14.9 13.8 8.4 7.3 17.9 1.7
18 10.7 10.7 10.5 8.2 9.1 12.8 12.8 10.0 14.0 13.9 16.4 12.8 12.4 12.8 10.9 11.4 12.6 11.8 11.4 12.5 10.3 8.6 10.6 6.3 11.4 16.4 6.3
19 5.0 6.1 5.2 6.7 5.5 6.0 7.3 9.2 4.9 5.3 5.6 6.4 6.9 7.1 6.9 7.1 7.0 4.1 3.9 4.2 4.1 3.8 4.0 4.4 5.7 9.2 3.8
20 3.4 3.2 2.3 2.3 2.9 3.5 4.7 3.7 3.7 3.5 3.7 3.7 8.0 14.2 13.0 12.6 11.6 10.5 8.7 7.3 8.4 10.9 9.8 7.5 6.8 14.2 2.3
21 9.6 9.5 10.5 9.3 9.9 12.1 11.5 10.0 13.1 13.4 13.6 13.0 12.7 12.2 12.4 11.4 8.7 6.9 8.7 8.1 10.1 8.9 9.7 12.9 10.8 13.6 6.9
22 13.1 12.7 6.5 8.7 9.4 5.6 6.8 9.9 10.8 10.1 9.4 9.9 9.7 8.0 8.9 8.7 5.9 5.4 6.1 5.9 3.7 5.4 5.7 5.4 8.0 13.1 3.7
23 8.3 10.2 9.3 10.7 11.5 10.7 9.1 8.6 10.1 13.1 12.9 12.8 13.0 12.5 11.5 11.5 8.9 8.9 10.9 10.1 13.7 15.2 20.1 19.5 11.8 20.1 8.3
24 26.6 26.6 23.4 22.2 16.6 18.7 14.8 8.7 7.7 7.1 8.8 7.5 6.7 7.4 5.5 4.5 4.3 3.0 2.8 4.1 4.6 4.8 2.0 4.0 10.1 26.6 2.0
25 4.4 3.4 2.9 2.8 4.4 6.2 4.3 4.0 2.2 3.2 4.5 4.2 4.5 3.8 4.7 3.7 2.3 4.2 3.8 5.2 5.6 5.7 8.0 11.4 4.6 11.4 2.2
26 9.1 4.7 6.1 8.1 3.1 7.0 4.7 6.5 3.4 4.8 3.6 4.1 4.3 4.9 4.3 4.0 2.9 4.7 4.8 4.8 4.6 4.9 6.6 6.5 5.1 9.1 2.9
27 8.1 11.7 10.2 8.6 5.3 3.6 5.2 7.1 10.6 12.6 13.0 13.8 12.9 11.6 12.2 15.3 12.0 13.5 14.7 16.9 17.9 16.0 16.6 16.3 11.9 17.9 3.6
28 15.2 12.8 11.0 11.5 10.5 10.6 10.1 14.9 15.7 16.7 15.4 11.5 10.1 6.5 4.9 3.9 13.9 13.4 15.8 15.8 11.1 10.2 11.4 9.1 11.8 16.7 3.9
29 8.6 6.1 7.7 10.3 10.0 8.7 10.9 11.5 15.9 18.1 24.4 21.5 20.7 21.1 19.9 17.1 11.8 7.3 10.9 13.2 12.7 11.1 10.3 7.7 13.2 24.4 6.1
30 7.7 7.3 7.9 4.8 4.8 3.7 2.5 2.0 1.7 1.9 3.0 3.4 5.3 5.3 3.8 2.6 2.2 3.6 5.9 6.0 8.9 9.7 10.2 10.3 5.2 10.3 1.7
31 11.7 11.4 10.6 10.1 12.9 14.2 13.7 14.3 12.5 12.3 11.9 11.1 10.1 10.3 9.9 10.5 10.3 9.3 4.9 3.1 9.2 8.1 3.3 3.9 10.0 14.3 3.1
MEAN 8.9 8.4 8.0 7.3 7.2 7.6 7.3 6.9 7.4 8.3 9.2 8.7 8.9 9.2 8.8 8.3 7.7 6.7 7.3 7.6 8.2 8.4 8.7 8.3 8.1
MAX 26.6 26.6 23.4 22.2 16.6 18.7 14.8 14.9 15.9 18.1 24.4 21.5 20.7 21.1 19.9 17.3 16.7 13.5 15.8 16.9 17.9 16.0 20.1 19.5 26.6
MIN 3.1 3.2 2.2 2.3 2.7 3.5 2.5 2.0 1.7 1.9 3.0 3.4 4.3 3.8 3.6 2.5 2.2 3.0 2.8 3.1 3.7 3.8 2.0 3.9 1.7
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =593 DATA RECOVERY RATE =
MONTHLY MEAN =8.1 mps
MAXIMUM WIND GUST =26.6 mps DATE OF OCCURRENCE =10/24 AT 0100 MAXIMUM DAILY MEAN =13.2 mps DATE OF OCCURRENCE =10/29
MINIMUM WIND GUST =1.7 mps DATE OF OCCURRENCE =10/17 AT 0900 MINUMUM DAILY MEAN =4.6 mps DATE OF OCCURRENCE =10/1
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
79.7%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for NOVEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 5.1 3.4 3.8 4.1 4.7 5.1 5.6 5.7 3.1 3.3 9.0 11.3 11.3 10.6 7.3 7.7 7.2 5.7 4.3 3.8 3.9 3.5 12.0 11.1 6.4 12.0 3.1
2 10.1 10.6 11.0 11.6 10.2 8.9 9.1 8.9 8.0 9.5 9.9 9.1 5.4 5.4 4.8 6.8 3.7 3.0 2.8 6.2 8.3 10.5 10.7 9.3 8.1 11.6 2.8
3 4.5 6.6 5.8 12.9 11.3 11.6 11.8 12.3 12.3 13.0 14.7 14.3 12.9 12.8 11.5 11.3 15.3 9.9 15.3 13.7 16.6 12.7 12.3 13.3 12.0 16.6 4.5
4 13.2 10.9 11.3 8.8 11.9 10.0 9.7 9.9 9.4 7.8 8.9 10.1 9.4 7.2 7.1 6.1 4.8 3.8 5.3 6.3 11.1 8.7 10.8 12.1 8.9 13.2 3.8
5 10.3 9.6 10.2 10.4 8.4 5.9 4.1 4.7 14.9 13.9 16.5 14.0 19.3 17.9 21.5 11.1 13.3 11.5 11.9 13.3 13.7 14.0 14.3 13.1 12.4 21.5 4.1
6 11.7 10.3 9.7 9.8 7.7 6.7 6.2 5.6 11.0 10.7 9.0 11.5 12.0 12.3 12.9 13.5 14.1 13.3 13.5 9.2 9.9 9.3 6.5 9.6 10.3 14.1 5.6
7 8.0 7.1 7.4 5.9 6.0 6.2 4.0 2.5 3.5 4.4 7.9 8.4 6.1 6.4 7.1 6.3 5.2 3.8 2.2 3.4 4.4 2.6 2.6 1.6 5.1 8.4 1.6
8 2.6 3.6 2.3 3.0 3.7 2.5 2.5 2.5 2.0 3.8 3.7 4.3 5.4 5.1 5.1 2.8 2.0 3.4 3.1 6.2 3.9 4.3 2.5 2.7 3.5 6.2 2.0
9 2.1 2.6 3.1 2.4 4.0 3.4 2.5 3.3 2.3 3.0 3.6 4.7 4.0 4.5 4.2 3.0 3.0 3.6 4.2 6.1 4.3 3.7 6.1 6.1 3.7 6.1 2.1
10 6.0 5.6 6.2 8.6 10.7 11.6 8.4 6.3 6.2 6.1 12.0 9.8 10.5 11.5 11.4 8.4 6.7 5.9 5.6 4.7 5.8 9.9 12.7 11.7 8.4 12.7 4.7
11 11.2 15.7 12.1 12.7 11.7 12.5 9.6 7.1 10.0 15.5 18.3 18.8 18.8 18.5 16.5 19.9 19.7 17.9 11.4 6.9 10.9 19.7 23.5 14.7 14.7 23.5 6.9
12 12.5 18.1 15.7 8.5 9.9 7.8 9.2 13.2 15.8 15.2 17.6 18.6 18.6 14.1 13.0 10.8 4.5 10.0 4.4 5.9 5.2 6.1 6.8 6.9 11.2 18.6 4.4
13 6.5 7.6 6.7 6.7 9.5 9.4 8.9 8.7 8.5 8.6 6.5 11.4 13.8 14.1 11.4 10.8 7.4 7.5 6.4 7.5 10.6 9.9 11.1 11.8 9.2 14.1 6.4
14 10.6 13.5 11.4 12.7 12.5 12.1 9.3 8.1 7.0 7.3 7.4 4.0 3.8 5.3 6.3 3.3 2.3 4.5 3.1 7.5 8.1 6.6 7.3 10.0 7.7 13.5 2.3
15 9.6 10.3 10.6 9.7 10.5 10.6 9.0 8.7 9.9 11.5 20.1 17.6 19.2 18.6 20.3 14.3 10.7 5.3 5.9 6.4 4.6 3.5 3.1 1.8 10.5 20.3 1.8
16 2.7 2.3 2.7 2.3 3.0 4.6 3.5 3.9 2.1 3.7 3.2 3.9 2.7 3.1 4.7 2.9 7.0 6.6 2.4 1.7 4.7 4.8 3.7 3.1 3.6 7.0 1.7
17 3.0 3.1 4.5 4.9 4.8 4.8 4.6 2.9 3.4 6.2 7.2 7.1 6.9 6.4 5.3 4.5 5.5 3.5 5.5 6.5 4.6 3.2 8.5 8.6 5.2 8.6 2.9
18 10.7 5.1 10.9 15.8 14.2 15.7 18.3 19.7 19.5 19.1 20.3 21.0 17.1 13.0 12.6 10.8 8.6 9.1 10.8 9.7 9.0 8.1 8.9 11.3 13.3 21.0 5.1
19 10.0 8.6 6.1 8.6 8.2 11.7 8.9 7.4 7.0 4.1 6.9 6.6 4.1 5.9 5.0 4.4 3.2 4.5 5.2 4.9 5.7 6.7 8.1 6.5 6.6 11.7 3.2
20 7.0 9.7 11.3 12.2 12.3 12.5 12.9 14.5 14.5 15.0 16.1 14.8 12.4 9.8 14.6 12.0 9.1 7.7 6.5 5.7 12.0 13.0 11.9 13.5 11.7 16.1 5.7
21 15.2 17.0 11.9 12.4 11.9 12.0 9.8 9.2 13.4 14.6 13.7 11.4 11.3 10.6 9.1 7.3 6.3 4.8 6.0 4.4 7.0 7.1 8.6 10.3 10.2 17.0 4.4
22 9.9 9.9 8.6 11.3 9.6 9.1 12.6 11.7 10.5 12.4 ------13.5 11.6 11.6 10.0 8.9 9.3 8.2 4.0 12.0 12.9 15.9 14.8 10.8 15.9 4.0
23 13.8 16.1 16.4 15.6 15.4 14.7 12.8 14.9 20.0 18.2 10.9 12.5 12.1 16.7 14.8 7.7 9.5 10.0 9.7 10.9 6.5 4.9 10.0 11.2 12.7 20.0 4.9
24 11.1 7.4 5.1 4.7 5.1 11.1 8.6 2.5 1.9 3.1 4.6 4.8 4.3 5.3 4.5 4.0 4.1 4.6 4.4 4.2 5.2 5.8 5.3 6.4 5.3 11.1 1.9
25 6.1 6.1 7.6 9.7 8.7 7.0 7.6 11.6 10.5 9.3 10.7 12.9 12.3 12.0 9.7 8.7 8.1 6.0 11.5 15.0 11.3 8.0 9.4 13.3 9.7 15.0 6.0
26 13.7 17.1 17.1 14.9 14.5 15.9 16.7 17.3 16.6 15.7 14.3 13.8 10.2 9.3 10.2 11.9 9.7 10.3 ------------------13.8 17.3 9.3
27 10.1 10.7 11.8 13.8 7.9 7.7 7.2 5.7 6.7 5.7 8.6 5.3 5.3 4.0 5.4 3.5 2.9 3.8 3.1 2.9 4.2 3.2 4.0 5.2 6.2 13.8 2.9
28 4.7 4.1 3.7 4.3 4.5 3.9 2.9 3.4 3.0 2.8 4.8 5.7 5.8 4.0 2.4 2.8 1.9 3.1 5.3 4.8 4.7 2.7 2.8 2.9 3.8 5.8 1.9
29 4.0 4.1 4.3 5.0 4.7 5.0 5.5 5.9 3.7 3.3 4.9 6.0 6.5 5.7 2.6 2.1 2.1 3.0 5.5 4.7 4.1 3.9 4.1 3.6 4.4 6.5 2.1
30 3.7 5.4 4.7 3.9 4.3 4.5 3.7 3.4 2.7 2.3 5.1 4.5 3.7 3.2 3.4 2.4 3.7 6.4 4.5 4.8 4.9 3.9 3.0 3.7 4.0 6.4 2.3
MEAN 8.3 8.7 8.5 8.9 8.7 8.8 8.2 8.1 8.6 9.0 10.2 10.3 10.0 9.5 9.2 7.7 7.0 6.7 6.5 6.6 7.5 7.4 8.5 8.6 8.4
MAX 15.2 18.1 17.1 15.8 15.4 15.9 18.3 19.7 20.0 19.1 20.3 21.0 19.3 18.6 21.5 19.9 19.7 17.9 15.3 15.0 16.6 19.7 23.5 14.8 23.5
MIN 2.1 2.3 2.3 2.3 3.0 2.5 2.5 2.5 1.9 2.3 3.2 3.9 2.7 3.1 2.4 2.1 1.9 3.0 2.2 1.7 3.9 2.6 2.5 1.6 1.6
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =712 DATA RECOVERY RATE =
MONTHLY MEAN =8.4 mps
MAXIMUM WIND GUST =23.5 mps DATE OF OCCURRENCE =11/11 AT 2300 MAXIMUM DAILY MEAN =14.7 mps DATE OF OCCURRENCE =11/11
MINIMUM WIND GUST =1.6 mps DATE OF OCCURRENCE =11/7 AT 2400 MINUMUM DAILY MEAN =3.5 mps DATE OF OCCURRENCE =11/8
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
98.9%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for DECEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 2.3 2.8 2.3 3.3 3.4 4.3 3.5 4.5 3.1 3.0 3.2 2.9 3.8 3.1 2.3 1.9 2.5 4.6 2.0 2.4 4.2 2.7 3.4 3.8 3.2 4.6 1.9
2 2.1 1.6 2.8 2.1 2.4 2.5 2.0 1.9 1.8 1.9 3.1 2.7 3.2 3.0 2.5 2.1 2.0 1.5 3.9 2.9 2.7 1.5 5.3 2.2 2.5 5.3 1.5
3 3.1 3.2 2.0 2.2 3.0 2.7 2.3 2.9 1.8 1.6 1.9 3.3 3.1 2.6 3.0 2.1 1.7 2.3 1.9 2.0 1.4 1.9 2.9 4.3 2.5 4.3 1.4
4 1.5 2.5 2.7 3.9 2.6 2.6 2.3 2.7 2.9 2.7 2.5 2.7 3.3 3.0 3.1 2.3 1.7 1.8 1.8 1.6 3.7 1.9 2.0 2.6 2.5 3.9 1.5
5 2.7 2.9 1.6 3.2 3.8 2.3 3.2 2.1 1.5 2.2 2.4 2.9 3.2 3.3 2.8 2.3 1.7 2.3 1.8 2.3 1.6 2.4 2.8 2.9 2.5 3.8 1.5
6 4.3 3.7 3.4 3.4 2.3 5.2 3.1 3.2 2.7 3.3 4.5 4.5 3.2 3.7 3.5 3.3 2.5 3.9 3.0 3.8 3.7 2.1 3.6 4.1 3.5 5.2 2.1
7 2.7 3.3 3.8 3.7 4.4 3.8 4.2 5.1 4.4 2.5 3.1 3.2 4.5 4.7 4.1 3.1 3.4 4.0 3.5 4.5 8.2 3.8 4.9 5.1 4.1 8.2 2.5
8 10.3 8.7 4.9 3.5 3.5 3.2 4.1 2.2 2.4 3.9 4.5 8.9 5.9 6.5 9.6 8.4 7.9 5.3 3.2 11.9 11.5 9.9 9.1 10.6 6.7 11.9 2.2
9 12.8 10.3 7.1 8.4 10.6 9.3 11.1 10.4 9.1 9.0 11.7 11.1 13.1 14.2 13.3 10.9 10.4 10.8 8.2 7.5 8.0 7.1 5.5 4.9 9.8 14.2 4.9
10 3.1 4.7 4.5 2.2 2.4 3.3 4.0 2.1 2.0 3.9 4.7 4.2 4.5 5.9 4.3 3.4 1.9 4.1 4.3 3.9 5.7 8.3 7.4 8.4 4.3 8.4 1.9
11 7.9 6.8 8.4 7.5 5.1 6.1 6.8 6.9 5.6 6.8 10.1 9.3 7.9 5.6 5.5 4.9 3.4 4.7 7.0 7.0 11.3 11.3 6.9 8.4 7.1 11.3 3.4
12 8.7 6.5 7.7 10.1 11.3 12.6 11.1 12.5 14.3 13.5 15.0 15.7 15.6 11.7 10.7 9.5 9.4 9.3 7.5 11.2 16.0 18.1 16.0 15.3 12.1 18.1 6.5
13 12.3 7.7 4.5 5.1 5.5 4.0 2.6 2.7 1.9 3.5 3.4 5.1 3.7 2.5 2.4 2.6 4.1 4.8 5.9 10.0 9.5 8.6 7.2 8.9 5.4 12.3 1.9
14 11.8 12.7 13.1 11.3 12.0 15.0 12.8 13.1 14.7 15.1 14.8 19.3 20.9 23.2 20.7 19.3 20.1 16.7 21.9 20.4 21.3 16.8 14.8 14.1 16.5 23.2 11.3
15 16.1 11.1 12.3 10.4 10.4 9.8 14.8 12.9 9.2 6.0 4.7 8.4 9.7 9.9 10.6 10.8 6.4 3.7 6.3 5.8 4.9 6.0 4.4 5.7 8.8 16.1 3.7
16 5.5 8.6 9.5 8.5 12.2 7.5 7.3 13.6 13.6 16.7 17.2 16.2 15.8 15.1 13.5 7.4 4.7 6.3 4.4 4.9 4.1 4.0 7.6 6.1 9.6 17.2 4.0
17 10.3 14.1 11.4 11.7 4.5 4.3 4.1 5.5 4.2 4.2 9.1 9.9 10.9 10.4 12.4 7.2 5.9 5.8 4.0 5.9 4.4 5.1 5.5 9.1 7.5 14.1 4.0
18 7.9 9.0 7.5 9.6 8.7 4.8 4.7 8.7 4.8 3.8 3.1 11.7 13.1 8.7 4.9 3.6 2.6 5.5 5.3 4.1 2.8 4.6 4.5 4.3 6.2 13.1 2.6
19 4.1 4.3 5.0 5.7 5.2 4.6 5.2 5.2 3.6 1.5 2.9 2.6 2.7 3.2 2.9 2.1 4.8 4.1 3.1 5.5 5.6 4.5 5.8 5.9 4.2 5.9 1.5
20 4.9 7.0 7.5 4.1 5.3 5.4 4.8 5.3 7.0 5.5 5.4 4.5 4.5 4.1 2.9 2.9 4.3 5.6 4.5 3.9 4.5 4.8 4.1 3.9 4.9 7.5 2.9
21 3.7 6.0 5.3 8.6 6.1 5.2 4.6 4.3 12.2 14.5 13.6 12.7 5.5 9.3 10.8 8.9 7.1 5.4 7.1 5.4 5.9 4.3 7.5 11.9 7.7 14.5 3.7
22 13.1 13.1 9.1 5.4 3.8 5.0 4.9 3.3 2.6 3.9 2.1 3.4 3.6 4.9 3.4 3.3 2.4 2.9 2.7 2.3 2.7 3.1 2.3 2.7 4.4 13.1 2.1
23 4.2 4.8 3.4 4.1 3.3 4.3 5.0 5.3 6.1 4.7 4.1 6.0 2.9 6.7 7.7 5.5 6.8 3.3 3.9 3.7 4.4 5.3 4.1 5.2 4.8 7.7 2.9
24 5.0 5.5 5.5 6.0 6.8 7.5 9.6 10.1 8.3 5.8 4.9 11.7 13.4 15.6 12.6 14.5 16.7 15.5 10.7 12.8 11.9 8.4 5.0 9.8 9.7 16.7 4.9
25 17.6 11.0 4.3 5.3 ------------------8.0 5.6 4.0 4.8 3.7 2.9 3.3 2.8 1.8 2.4 5.2 4.9 5.6 6.2 5.5 17.6 1.8
26 8.3 9.9 9.6 11.1 10.2 12.8 10.8 9.2 16.4 17.6 18.3 18.4 16.7 18.4 17.6 13.7 6.9 7.3 ---13.6 9.5 10.3 3.6 5.0 12.0 18.4 3.6
27 5.1 7.0 8.9 10.5 11.7 11.3 10.3 9.7 15.5 11.9 17.3 14.9 16.7 12.9 17.4 14.5 12.1 27.7 22.1 23.9 23.0 7.7 6.6 2.9 13.4 27.7 2.9
28 6.8 5.3 5.6 5.8 11.9 12.6 12.3 14.2 14.0 13.7 17.2 17.1 13.2 11.5 10.7 11.3 12.4 11.2 10.2 5.4 5.4 3.2 3.0 4.7 10.0 17.2 3.0
29 5.8 11.6 12.4 9.6 11.1 11.9 10.9 10.7 10.6 17.6 15.4 16.9 16.9 16.7 14.9 14.7 10.0 4.9 15.4 10.7 11.1 19.4 13.9 10.9 12.7 19.4 4.9
30 12.1 16.3 11.7 11.2 8.8 15.2 15.5 14.4 13.6 15.1 16.2 13.7 12.2 10.3 9.5 9.6 8.4 7.0 3.7 5.6 5.7 5.5 4.3 4.9 10.5 16.3 3.7
31 5.0 4.3 4.3 3.3 3.5 2.9 3.0 2.7 2.3 2.3 3.7 4.6 5.1 6.6 5.9 4.1 2.1 4.3 4.5 5.3 4.7 4.8 4.8 8.3 4.3 8.3 2.1
MEAN 7.1 7.3 6.5 6.5 6.5 6.7 6.7 6.9 7.1 7.3 8.0 8.9 8.5 8.5 8.1 6.9 6.1 6.4 6.2 6.9 7.3 6.5 6.0 6.6 7.1
MAX 17.6 16.3 13.1 11.7 12.2 15.2 15.5 14.4 16.4 17.6 18.3 19.3 20.9 23.2 20.7 19.3 20.1 27.7 22.1 23.9 23.0 19.4 16.0 15.3 27.7
MIN 1.5 1.6 1.6 2.1 2.3 2.3 2.0 1.9 1.5 1.5 1.9 2.6 2.7 2.5 2.3 1.9 1.7 1.5 1.8 1.6 1.4 1.5 2.0 2.2 1.4
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =737 DATA RECOVERY RATE =
MONTHLY MEAN =7.1 mps
MAXIMUM WIND GUST =27.7 mps DATE OF OCCURRENCE =12/27 AT 1800 MAXIMUM DAILY MEAN =16.5 mps DATE OF OCCURRENCE =12/14
MINIMUM WIND GUST =1.4 mps DATE OF OCCURRENCE =12/3 AT 2100 MINUMUM DAILY MEAN =2.5 mps DATE OF OCCURRENCE =12/3
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.1%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants
APPENDIX B: HOURLY TEMPERATURE DATA FOR FOURTH QUARTER
2024

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for OCTOBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 56.7 53.6 53.7 53.7 54.6 54.5 54.8 57.9 60.7 62.7 65.2 67.3 69.6 71.9 73.1 72.8 72.1 69.1 65.4 64.1 64.6 66.3 67.6 69.0 63.4 73.1 53.6
2 65.7 63.5 62.1 61.5 61.1 62.0 62.7 66.9 67.0 69.9 71.9 73.6 75.5 76.1 76.8 77.1 75.8 71.7 68.2 66.8 67.2 67.0 66.7 65.6 68.4 77.1 61.1
3 62.5 62.2 61.8 60.5 60.3 59.6 59.4 63.4 65.8 66.3 66.8 69.9 72.2 74.0 74.0 74.1 73.0 69.9 66.2 65.5 66.6 68.2 67.8 67.4 66.6 74.1 59.4
4 67.3 68.1 68.4 66.2 64.4 64.6 64.9 67.2 70.6 76.1 77.9 79.5 80.0 82.2 84.6 84.4 83.7 81.5 79.3 76.9 77.1 77.0 74.5 72.6 74.5 84.6 64.4
5 71.7 71.4 67.5 64.7 64.0 63.3 62.3 66.4 69.2 69.4 71.7 71.5 72.4 73.5 72.6 72.1 71.5 67.9 64.7 63.5 62.7 63.8 63.8 63.3 67.7 73.5 62.3
6 62.1 60.7 60.1 60.3 61.5 61.5 61.0 64.1 65.8 68.9 69.7 72.1 74.1 75.1 76.6 76.2 75.5 71.9 69.3 67.6 67.7 67.0 65.7 66.0 67.5 76.6 60.1
7 65.5 63.8 64.1 65.4 65.9 65.2 63.1 66.0 68.8 70.2 70.7 72.9 74.8 76.1 76.2 75.6 74.8 71.4 69.3 67.8 66.0 65.2 66.2 65.8 68.8 76.2 63.1
8 65.0 64.3 63.2 64.2 64.9 63.7 62.3 65.6 68.7 71.2 72.4 74.4 74.1 76.1 76.1 74.3 74.0 70.5 67.8 67.4 66.7 66.0 66.2 66.9 68.6 76.1 62.3
9 66.2 66.0 64.5 63.3 62.7 62.0 62.3 64.9 68.7 69.6 71.8 73.9 75.4 76.2 77.1 78.3 77.8 72.8 70.1 69.6 70.2 69.6 69.1 68.8 69.6 78.3 62.0
10 71.2 73.9 70.4 63.8 62.4 62.1 60.9 63.8 68.9 71.0 72.7 76.0 78.0 77.9 78.1 78.9 78.0 75.5 73.3 71.0 70.4 68.6 71.6 72.3 71.3 78.9 60.9
11 71.2 70.8 69.3 65.9 64.3 63.3 63.4 64.5 71.1 73.8 74.1 75.4 76.6 78.4 78.5 78.7 78.4 73.5 69.0 67.5 67.0 68.9 68.0 68.8 70.8 78.7 63.3
12 68.3 62.3 60.4 61.1 61.3 62.0 61.4 63.1 67.3 69.1 71.6 72.6 73.8 75.3 76.1 76.0 75.8 72.3 68.7 68.6 66.8 65.1 65.2 68.7 68.0 76.1 60.4
13 67.2 64.4 61.4 60.6 60.5 60.7 62.9 65.6 68.3 69.7 71.1 72.9 74.4 75.5 76.3 73.6 73.4 68.6 67.1 68.5 67.2 66.1 67.6 64.7 67.8 76.3 60.5
14 64.6 66.1 64.7 61.8 62.1 63.0 65.2 66.0 68.5 69.3 70.9 72.4 74.0 75.1 76.3 74.6 72.5 68.4 67.1 65.1 64.1 63.6 64.1 62.4 67.6 76.3 61.8
15 62.4 61.9 64.0 62.6 60.9 59.2 59.3 61.7 65.3 68.6 68.4 71.0 73.3 73.8 74.9 73.1 71.5 67.2 65.0 63.8 63.5 62.8 63.3 64.6 65.9 74.9 59.2
16 64.9 63.4 63.4 63.5 60.6 59.1 58.8 60.6 63.5 65.8 66.7 68.3 69.4 70.7 71.9 71.8 66.9 64.7 63.1 62.5 63.8 62.3 63.0 62.4 64.6 71.9 58.8
17 58.4 56.2 54.4 52.3 50.7 49.0 47.0 46.5 46.5 46.9 46.9 45.7 45.6 45.5 46.3 47.1 47.2 48.5 46.4 42.5 40.8 39.3 37.0 35.5 46.8 58.4 35.5
18 35.3 36.4 35.7 34.5 34.4 34.0 34.2 35.6 36.2 37.0 38.2 40.6 41.1 41.4 42.5 42.6 43.1 43.1 43.0 43.1 42.6 44.1 43.7 43.4 39.4 44.1 34.0
19 42.5 41.0 39.8 40.4 40.6 40.3 41.0 41.6 45.2 46.5 47.6 50.1 50.7 51.5 52.6 52.8 52.4 49.7 47.8 46.8 46.7 46.6 46.6 47.8 46.2 52.8 39.8
20 47.3 46.5 46.8 46.4 45.5 45.3 45.8 49.9 50.6 50.1 52.0 51.9 53.5 55.7 55.7 56.1 54.2 52.0 50.4 48.4 47.8 46.6 45.9 45.2 49.6 56.1 45.2
21 45.2 45.3 45.0 44.7 45.4 44.9 44.9 47.0 50.6 52.2 54.2 55.7 57.7 59.7 61.1 61.6 61.5 59.2 57.5 55.5 54.5 54.5 55.0 53.5 52.8 61.6 44.7
22 53.9 53.4 53.2 51.9 50.9 51.2 51.4 52.7 56.1 58.7 59.8 60.8 62.3 63.8 64.3 65.2 63.6 61.0 58.7 58.5 56.5 56.0 56.2 55.1 57.3 65.2 50.9
23 55.8 55.2 54.2 54.0 52.8 52.3 51.6 55.0 60.5 61.6 62.1 64.2 66.8 68.6 69.5 69.1 67.7 65.8 65.6 65.9 64.0 66.6 69.7 69.5 62.0 69.7 51.6
24 65.5 52.9 49.6 47.2 44.9 40.7 37.4 37.9 39.9 42.7 44.3 45.2 46.9 47.3 48.5 48.3 46.6 43.1 41.9 41.9 41.9 41.7 40.7 39.8 44.9 65.5 37.4
25 40.6 40.6 39.3 39.7 39.5 41.7 43.6 41.9 46.3 47.4 50.1 51.2 54.3 56.3 58.6 57.7 55.7 51.8 49.5 49.8 51.5 52.0 52.2 57.2 48.7 58.6 39.3
26 54.5 51.7 50.6 51.7 51.8 52.6 51.2 50.7 54.1 56.8 57.4 60.6 62.7 63.6 64.4 63.3 60.4 56.6 55.1 56.0 57.8 59.5 57.2 56.8 56.5 64.4 50.6
27 56.2 57.1 59.1 60.1 56.7 57.5 56.0 55.1 57.1 59.9 61.1 61.4 60.8 64.5 65.9 66.3 65.5 62.7 62.2 63.6 64.5 64.2 64.3 63.3 61.0 66.3 55.1
28 63.1 62.7 62.3 61.7 60.6 60.1 59.3 58.3 59.4 60.0 61.4 60.3 55.9 53.3 53.2 53.1 52.8 50.7 46.2 42.7 39.6 38.1 35.8 34.9 53.6 63.1 34.9
29 35.0 35.1 35.1 34.0 33.8 34.3 34.2 34.4 33.9 34.6 34.7 35.2 36.3 35.8 37.2 38.2 36.0 32.7 31.8 31.3 32.0 31.3 32.1 32.6 34.2 38.2 31.3
30 32.7 31.4 32.2 32.6 30.8 30.7 30.4 31.1 32.2 34.7 36.4 38.1 38.2 38.1 36.8 36.2 36.7 35.7 35.3 35.6 33.3 32.8 33.1 34.1 34.1 38.2 30.4
31 34.5 35.0 35.3 35.5 35.7 35.5 35.8 36.5 37.9 41.1 43.0 45.0 46.2 46.3 46.3 46.2 45.5 42.9 41.7 42.1 40.3 39.6 36.3 35.3 40.0 46.3 34.5
MEAN 57.2 56.0 55.2 54.4 53.7 53.4 53.2 54.9 57.6 59.4 60.7 62.2 63.4 64.5 65.2 65.0 64.0 61.0 58.9 58.1 57.6 57.4 57.3 57.2 58.7
MAX 71.7 73.9 70.4 66.2 65.9 65.2 65.2 67.2 71.1 76.1 77.9 79.5 80.0 82.2 84.6 84.4 83.7 81.5 79.3 76.9 77.1 77.0 74.5 72.6 84.6
MIN 32.7 31.4 32.2 32.6 30.8 30.7 30.4 31.1 32.2 34.6 34.7 35.2 36.3 35.8 36.8 36.2 36.0 32.7 31.8 31.3 32.0 31.3 32.1 32.6 30.4
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =58.7 Deg F
MAXIMUM TEMPERATURE =84.6 Deg F DATE OF OCCURRENCE =10/4 AT 1500 MAXIMUM DAILY MEAN =74.5 Deg F DATE OF OCCURRENCE =10/4
MINIMUM TEMPERATURE =30.4 Deg F DATE OF OCCURRENCE =10/30 AT 0700 MINUMUM DAILY MEAN =34.1 Deg F DATE OF OCCURRENCE =10/30
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for NOVEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 34.7 34.4 34.2 34.3 34.7 36.2 35.8 36.1 37.6 39.5 42.0 45.2 46.4 47.7 48.2 48.3 48.3 45.9 44.2 42.6 41.8 44.0 44.8 45.2 41.3 48.3 34.2
2 45.2 43.4 44.9 44.6 46.7 47.3 46.7 45.3 46.1 49.6 48.2 46.9 46.5 44.9 43.7 42.9 40.5 39.7 38.8 37.8 37.2 37.2 37.2 37.4 43.3 49.6 37.2
3 35.0 31.3 30.8 32.4 32.7 32.0 32.0 31.9 32.4 33.5 33.2 32.6 32.3 34.0 35.0 34.8 34.7 34.1 33.6 33.0 32.6 33.6 33.7 33.1 33.1 35.0 30.8
4 32.6 32.5 31.3 30.7 30.3 30.5 30.0 30.7 34.5 35.4 36.7 37.7 37.6 38.9 37.9 38.6 37.4 33.9 33.1 34.0 33.7 34.9 35.6 35.8 34.3 38.9 30.0
5 35.6 34.8 34.2 34.1 34.1 33.8 32.6 32.8 33.9 34.3 31.9 32.2 32.5 33.1 31.1 31.2 30.5 28.5 29.5 30.4 30.8 30.7 29.8 29.2 32.1 35.6 28.5
6 29.1 29.4 29.2 29.5 29.1 28.3 27.5 27.5 30.2 31.4 32.0 33.3 34.9 35.4 35.9 35.9 34.4 33.3 31.9 30.7 31.1 30.7 31.0 31.7 31.4 35.9 27.5
7 30.3 29.8 29.7 29.1 29.1 29.0 26.6 26.8 29.9 32.5 34.9 36.1 37.4 38.4 38.9 39.1 36.6 33.2 32.2 31.7 31.7 30.6 31.2 30.2 32.3 39.1 26.6
8 30.5 30.0 29.6 29.5 29.3 28.9 28.5 29.4 33.6 34.8 35.9 37.8 39.9 39.9 40.7 41.0 39.2 36.2 36.0 36.7 36.8 35.0 35.4 34.5 34.5 41.0 28.5
9 34.5 34.6 33.5 34.1 32.9 33.6 33.4 33.7 37.1 38.7 41.0 42.1 43.9 44.7 45.5 46.2 43.8 40.7 41.0 41.3 40.8 39.8 40.7 40.8 39.1 46.2 32.9
10 40.5 40.4 39.9 40.9 40.2 40.4 39.5 41.1 46.7 49.7 50.5 51.5 53.3 54.6 54.8 54.8 53.4 49.9 49.2 48.5 49.0 49.4 48.5 49.2 47.3 54.8 39.5
11 48.1 48.4 46.5 46.2 45.5 45.7 44.6 46.3 49.2 50.7 53.0 55.0 57.7 59.7 60.6 62.2 60.2 59.2 57.4 55.0 52.2 50.5 50.5 51.9 52.3 62.2 44.6
12 50.6 51.8 48.9 44.6 42.5 42.1 39.0 35.8 33.6 33.2 34.4 35.0 34.5 34.9 35.6 34.7 32.8 33.0 33.6 33.7 33.3 32.6 32.0 31.9 37.3 51.8 31.9
13 32.1 31.9 32.8 31.9 28.7 29.6 29.1 29.5 31.6 34.5 37.2 38.1 42.2 43.4 46.1 47.6 46.1 42.8 41.4 41.2 41.6 42.0 41.0 40.3 37.6 47.6 28.7
14 42.9 40.9 40.2 39.8 39.3 39.3 39.2 40.9 45.0 47.2 47.5 47.0 48.6 51.0 51.3 49.6 47.0 44.6 42.9 46.0 46.4 44.3 41.1 39.2 44.2 51.3 39.2
15 42.1 47.3 42.0 42.9 46.8 46.8 45.6 45.1 45.6 46.0 46.5 46.2 46.6 47.0 46.4 41.2 37.3 39.1 36.9 35.4 34.8 33.5 33.1 31.6 41.9 47.3 31.6
16 30.4 29.9 29.7 29.6 29.3 29.5 29.1 29.2 29.9 30.2 30.2 29.5 30.1 31.9 32.9 32.8 32.6 32.6 32.1 31.1 29.6 29.0 29.4 28.5 30.4 32.9 28.5
17 27.8 27.9 27.5 27.4 27.3 27.2 26.9 27.3 30.0 31.2 33.0 33.7 35.5 36.5 37.4 37.6 37.1 36.3 35.9 35.8 34.7 34.3 34.6 34.9 32.4 37.6 26.9
18 35.0 35.1 35.2 33.8 33.6 34.4 32.9 39.9 43.8 36.2 32.1 33.3 33.9 34.7 34.6 33.0 31.4 29.9 29.3 28.6 28.3 26.8 28.0 27.7 33.0 43.8 26.8
19 26.7 26.7 26.4 25.9 25.3 25.6 26.0 25.5 24.5 27.6 29.6 30.5 30.1 31.4 32.1 31.9 30.4 27.8 28.4 29.4 27.3 27.0 28.6 27.8 28.0 32.1 24.5
20 29.6 27.3 27.1 25.9 26.5 26.7 29.0 29.1 32.6 37.3 40.3 40.6 42.5 45.7 48.1 48.2 47.0 44.6 42.1 41.7 43.5 43.4 42.9 42.2 37.7 48.2 25.9
21 41.7 41.5 41.3 41.2 41.5 42.1 42.2 41.7 43.4 45.2 47.4 50.0 51.3 53.6 53.9 54.6 51.6 51.4 49.3 50.4 51.1 48.7 47.7 48.1 47.1 54.6 41.2
22 47.6 46.6 44.4 42.7 43.0 42.7 42.8 43.0 46.9 49.8 51.3 53.8 56.4 ---58.0 57.2 55.6 52.6 51.8 50.2 52.5 51.2 53.7 53.4 49.9 58.0 42.7
23 51.3 51.0 50.5 49.8 49.2 48.9 48.7 49.3 51.8 55.0 52.9 54.0 55.2 57.5 57.2 56.4 56.2 55.8 49.3 44.9 41.0 41.8 40.0 36.3 50.2 57.5 36.3
24 34.5 32.2 31.7 31.4 31.6 31.1 30.2 29.9 30.3 30.5 31.3 33.1 34.4 35.4 35.9 35.8 33.7 31.1 30.1 29.7 29.5 29.3 29.3 30.0 31.7 35.9 29.3
25 29.0 29.2 28.8 26.9 25.6 25.3 26.0 26.5 29.1 31.1 33.1 34.8 36.2 37.6 37.1 36.9 37.1 35.9 34.9 36.5 36.5 34.8 34.3 36.6 32.5 37.6 25.3
26 37.0 37.0 36.8 36.4 35.5 36.4 35.7 35.3 36.3 37.3 37.9 38.0 37.5 37.1 36.8 36.8 34.5 33.7 31.7 30.9 30.9 30.9 31.1 31.3 35.1 38.0 30.9
27 31.7 32.9 29.7 30.7 29.3 29.0 27.7 27.5 28.1 30.0 31.6 33.9 34.1 34.1 32.3 32.1 31.3 29.5 28.4 27.6 26.8 26.0 25.4 25.3 29.8 34.1 25.3
28 25.1 24.9 24.2 23.7 23.9 23.5 23.3 23.0 26.5 29.5 28.8 29.3 30.1 31.5 32.1 31.2 28.9 27.3 26.6 26.7 26.8 26.3 25.6 25.2 26.8 32.1 23.0
29 24.7 25.4 25.2 24.7 24.7 23.3 23.0 24.1 26.3 28.8 30.3 31.3 33.6 33.6 34.5 34.6 31.2 30.1 29.9 29.2 28.5 28.2 27.8 27.3 28.3 34.6 23.0
30 27.8 29.0 29.5 29.0 27.8 29.1 27.6 28.2 29.3 33.9 34.9 36.4 37.6 37.2 38.1 37.1 34.7 31.7 31.1 31.0 30.3 30.0 29.9 31.5 31.8 38.1 27.6
MEAN 35.5 35.2 34.5 34.1 33.9 33.9 33.4 33.7 35.9 37.5 38.3 39.3 40.4 40.9 41.8 41.5 39.8 38.2 37.1 36.7 36.4 35.9 35.8 35.6 36.9
MAX 51.3 51.8 50.5 49.8 49.2 48.9 48.7 49.3 51.8 55.0 53.0 55.0 57.7 59.7 60.6 62.2 60.2 59.2 57.4 55.0 52.5 51.2 53.7 53.4 62.2
MIN 24.7 24.9 24.2 23.7 23.9 23.3 23.0 23.0 24.5 27.6 28.8 29.3 30.1 31.4 31.1 31.2 28.9 27.3 26.6 26.7 26.8 26.0 25.4 25.2 23.0
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =719 DATA RECOVERY RATE =
MONTHLY MEAN =36.9 Deg F
MAXIMUM TEMPERATURE =62.2 Deg F DATE OF OCCURRENCE =11/11 AT 1600 MAXIMUM DAILY MEAN =52.3 Deg F DATE OF OCCURRENCE =11/11
MINIMUM TEMPERATURE =23.0 Deg F DATE OF OCCURRENCE =11/29 AT 0700 MINUMUM DAILY MEAN =26.8 Deg F DATE OF OCCURRENCE =11/28
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.9%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for DECEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 31.1 31.9 32.0 31.0 32.3 33.0 32.4 33.7 32.7 35.4 34.9 36.0 37.1 38.5 39.6 39.1 36.1 35.2 34.9 34.0 33.1 31.8 32.9 33.2 34.3 39.6 31.0
2 32.7 32.4 32.6 32.9 32.5 32.8 32.8 31.3 32.4 35.4 38.2 39.1 40.1 40.7 41.1 40.0 36.7 35.4 35.3 35.2 34.5 33.8 36.5 36.1 35.4 41.1 31.3
3 35.0 33.7 34.3 35.4 35.6 34.8 33.7 31.9 34.7 35.3 36.6 38.6 40.1 42.4 42.2 40.8 38.0 37.0 36.7 35.3 34.9 34.6 35.6 35.9 36.4 42.4 31.9
4 33.8 33.5 33.3 33.1 34.3 32.6 32.2 32.2 34.5 37.0 37.5 39.1 40.6 41.1 41.2 40.0 37.3 35.0 34.3 33.5 33.4 33.0 34.1 34.6 35.5 41.2 32.2
5 33.8 33.5 33.8 33.5 33.6 33.3 32.9 32.9 33.1 35.5 35.2 38.2 39.6 40.6 40.6 40.2 37.1 34.7 34.4 33.7 33.1 33.3 32.2 31.8 35.0 40.6 31.8
6 32.6 33.6 33.4 34.0 33.0 30.6 30.1 30.8 32.5 35.9 36.2 36.9 37.8 39.2 38.8 37.0 34.4 32.5 32.6 32.0 32.1 33.1 31.9 32.3 33.9 39.2 30.1
7 32.8 31.7 31.4 31.3 31.7 33.5 31.8 31.3 34.9 35.2 37.8 37.4 39.0 41.4 41.0 38.8 35.9 35.1 35.6 35.9 35.3 35.7 35.7 36.5 35.3 41.4 31.3
8 37.1 36.8 35.8 33.3 30.4 31.6 33.8 32.6 33.8 37.5 38.4 40.7 41.5 41.7 42.2 40.4 37.8 35.1 35.5 34.6 33.7 33.4 33.6 33.1 36.0 42.2 30.4
9 32.1 29.6 28.7 27.7 26.8 26.6 26.3 24.8 24.7 25.4 30.1 30.9 29.3 29.7 30.3 29.2 27.7 28.0 27.1 28.0 27.7 27.2 27.1 26.1 28.0 32.1 24.7
10 24.3 23.8 23.3 23.8 23.3 22.1 21.8 22.1 24.2 27.5 27.9 28.9 28.8 30.4 31.0 30.8 28.3 26.3 25.3 25.5 25.5 25.4 25.5 26.4 25.9 31.0 21.8
11 25.6 26.7 26.9 25.1 26.7 26.7 26.0 24.4 25.3 27.7 32.7 35.8 35.9 37.2 38.8 39.0 37.3 34.4 32.1 31.6 31.1 34.8 33.4 36.0 31.3 39.0 24.4
12 36.8 36.1 34.8 36.8 36.8 37.1 35.5 38.0 36.3 40.8 43.2 42.4 48.5 48.3 46.6 45.3 44.2 42.2 39.6 42.3 43.3 42.7 40.7 39.3 40.7 48.5 34.8
13 37.6 35.1 34.8 32.9 30.0 27.7 27.6 28.2 28.7 29.8 30.6 32.1 31.9 32.9 33.9 33.4 33.6 32.4 31.0 30.9 30.8 32.2 31.2 31.8 31.7 37.6 27.6
14 31.3 32.5 32.4 33.1 33.1 34.4 34.9 37.6 38.0 38.1 38.2 37.7 38.1 39.3 40.4 40.1 40.3 41.1 48.5 47.1 45.2 45.4 45.5 44.7 39.0 48.5 31.3
15 43.4 42.2 41.4 41.2 39.7 39.0 36.5 33.8 32.6 33.0 34.0 35.3 36.1 35.9 35.7 34.2 32.5 29.8 28.7 28.9 29.1 29.4 29.6 29.8 34.7 43.4 28.7
16 28.7 29.5 30.0 30.4 31.2 32.3 31.7 31.2 33.0 36.8 38.8 39.9 41.2 43.5 44.5 41.4 38.4 34.9 31.3 31.1 35.4 37.6 37.7 37.3 35.3 44.5 28.7
17 38.3 40.7 41.3 39.2 38.9 38.1 35.4 36.3 36.6 37.2 39.4 41.4 42.6 42.4 40.5 40.8 38.5 36.9 36.1 36.1 36.1 35.2 36.7 35.0 38.3 42.6 35.0
18 35.0 35.3 36.6 36.2 34.3 35.5 36.0 36.7 36.4 38.8 42.1 44.2 47.7 46.0 46.9 47.1 44.0 43.1 43.4 42.7 39.1 37.8 38.9 39.9 40.1 47.7 34.3
19 42.2 40.9 40.5 41.6 41.5 40.9 41.9 41.0 40.9 43.5 45.9 46.9 48.4 48.7 47.4 47.3 43.6 42.5 41.2 40.1 44.9 43.6 44.0 43.8 43.5 48.7 40.1
20 42.9 42.2 41.2 38.4 37.7 41.1 40.7 38.3 42.2 46.5 47.0 46.2 46.6 45.2 43.8 43.5 41.6 39.8 40.8 42.8 41.6 42.5 40.1 38.8 42.1 47.0 37.7
21 42.5 42.8 43.3 43.9 42.3 36.2 38.4 41.0 44.4 49.4 50.8 49.0 44.3 46.0 49.9 51.6 48.4 46.6 47.2 46.9 45.2 42.3 39.2 50.0 45.1 51.6 36.2
22 47.4 46.4 45.9 43.0 37.0 37.8 39.2 41.7 42.0 42.2 43.6 45.9 47.6 46.4 44.7 42.7 41.8 39.9 38.6 38.8 38.3 38.8 39.4 39.3 42.0 47.6 37.0
23 39.3 39.1 39.6 39.8 40.0 40.9 41.1 41.9 42.1 42.0 41.1 39.4 38.6 40.1 42.9 42.2 40.0 39.0 39.2 38.6 37.9 37.9 38.0 38.5 40.0 42.9 37.9
24 39.1 39.4 40.1 39.3 38.9 38.3 36.3 36.2 36.3 40.1 42.9 43.9 45.6 47.0 46.4 44.0 45.0 45.6 45.5 45.0 44.1 44.0 43.2 44.0 42.1 47.0 36.2
25 42.3 39.4 36.7 34.1 31.5 32.0 31.7 31.0 30.7 31.5 32.1 31.7 32.5 32.8 32.7 32.7 32.4 31.9 31.2 29.7 29.5 30.1 30.2 29.8 32.5 42.3 29.5
26 29.6 28.3 28.6 29.2 30.4 30.6 30.6 29.4 28.7 29.7 30.4 31.9 32.2 32.4 34.2 34.0 32.6 31.6 30.8 34.1 35.4 31.7 30.8 31.7 31.2 35.4 28.3
27 32.5 32.9 31.7 30.8 31.8 31.2 30.5 30.3 30.6 31.8 33.2 33.1 33.7 33.0 32.4 35.3 41.9 41.8 40.8 40.1 39.7 39.3 36.9 36.4 34.7 41.9 30.3
28 36.7 36.3 34.5 34.3 33.5 32.5 31.6 31.7 32.0 32.7 34.3 35.7 38.5 38.8 38.4 38.5 37.7 37.6 37.1 37.6 39.2 36.6 35.0 33.9 35.6 39.2 31.6
29 33.8 37.7 42.5 43.8 41.6 39.6 40.4 40.9 43.4 44.2 46.7 47.6 50.8 53.9 52.4 49.7 44.8 34.9 37.7 34.7 36.4 37.0 37.0 37.1 42.0 53.9 33.8
30 36.6 35.3 35.1 34.4 33.7 33.3 31.2 30.5 30.5 29.8 31.0 31.2 30.8 30.3 29.8 29.4 28.6 26.9 26.1 25.2 24.8 24.2 23.6 23.2 29.8 36.6 23.2
31 22.9 22.0 21.8 21.8 21.7 21.7 21.0 20.6 23.4 26.5 26.8 28.1 28.9 27.5 27.5 27.1 26.0 25.1 24.7 24.0 24.2 23.5 24.0 23.1 24.3 28.9 20.6
MEAN 35.2 34.9 34.8 34.4 33.7 33.5 33.1 33.0 33.9 35.9 37.3 38.2 39.2 39.8 39.9 39.2 37.5 35.9 35.6 35.3 35.3 35.1 34.8 35.1 35.9
MAX 47.4 46.4 45.9 43.9 42.3 41.1 41.9 41.9 44.4 49.4 50.8 49.0 50.8 53.9 52.4 51.6 48.4 46.6 48.5 47.1 45.2 45.4 45.5 50.0 53.9
MIN 22.9 22.0 21.8 21.8 21.7 21.7 21.0 20.6 23.4 25.4 26.8 28.1 28.8 27.5 27.5 27.1 26.0 25.1 24.7 24.0 24.2 23.5 23.6 23.1 20.6
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =35.9 Deg F
MAXIMUM TEMPERATURE =53.9 Deg F DATE OF OCCURRENCE =12/29 AT 1400 MAXIMUM DAILY MEAN =45.1 Deg F DATE OF OCCURRENCE =12/21
MINIMUM TEMPERATURE =20.6 Deg F DATE OF OCCURRENCE =12/31 AT 0800 MINUMUM DAILY MEAN =24.3 Deg F DATE OF OCCURRENCE =12/31
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for OCTOBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 58.1 55.8 56.8 56.6 56.8 57.0 57.0 57.4 60.6 62.9 63.7 65.7 67.4 68.7 69.8 70.2 69.3 67.6 65.6 64.3 65.8 67.2 68.1 68.4 63.4 70.2 55.8
2 68.1 66.1 64.9 65.1 63.1 64.3 66.3 67.8 66.2 68.9 70.7 72.0 72.5 73.3 74.2 74.1 73.6 70.3 67.4 68.0 68.2 69.7 69.8 64.9 68.7 74.2 63.1
3 63.6 63.5 62.8 62.5 62.3 61.9 62.0 63.3 63.6 65.4 65.6 66.6 69.0 70.7 71.3 71.6 70.7 68.0 66.1 66.1 66.9 68.1 67.6 68.2 66.1 71.6 61.9
4 68.6 67.9 67.5 69.4 68.8 69.6 68.3 70.6 72.8 73.3 74.2 75.7 77.5 80.3 81.9 81.7 80.6 78.9 77.9 76.4 75.3 76.3 74.4 72.7 74.2 81.9 67.5
5 71.5 70.5 69.2 67.5 66.1 65.3 62.8 64.7 66.1 66.8 68.6 69.5 69.6 70.4 70.5 69.6 68.6 66.2 64.3 63.8 63.5 63.7 64.4 64.6 67.0 71.5 62.8
6 63.9 62.7 61.8 61.3 63.0 62.7 62.7 64.4 66.3 68.0 71.6 70.5 72.0 72.9 73.3 73.4 73.0 70.3 68.9 67.6 66.9 68.4 68.0 67.3 67.5 73.4 61.3
7 67.2 66.5 65.9 66.0 65.6 66.2 64.8 64.7 66.6 68.2 69.8 70.6 71.7 72.5 73.7 72.4 71.7 69.1 67.9 67.8 67.4 66.8 66.9 67.2 68.2 73.7 64.7
8 66.7 66.3 65.4 64.7 65.3 65.0 65.1 65.8 69.0 71.4 72.2 72.8 72.4 72.5 71.4 70.7 70.1 68.9 67.3 67.5 67.3 67.7 67.1 67.0 68.3 72.8 64.7
9 68.9 68.4 67.3 66.3 64.8 64.5 63.7 65.7 68.1 69.4 71.1 71.6 73.1 75.6 75.5 75.0 74.5 72.2 70.0 69.4 69.0 70.0 70.4 71.5 69.8 75.6 63.7
10 70.8 69.9 68.5 67.4 65.8 66.1 66.2 67.1 68.5 69.4 71.1 73.0 74.3 75.3 77.0 76.5 75.1 72.6 71.0 72.1 72.0 69.9 70.4 68.8 70.8 77.0 65.8
11 68.1 67.6 66.9 65.6 66.3 67.3 66.3 66.5 69.0 70.4 71.9 73.6 74.9 76.6 76.1 76.5 75.7 73.1 69.5 68.3 67.6 68.1 68.4 67.2 70.1 76.6 65.6
12 67.2 65.9 64.9 64.1 64.8 65.2 63.9 65.1 67.7 68.5 70.0 70.4 72.5 73.3 73.8 73.9 73.2 70.4 67.0 67.3 68.2 66.8 65.9 66.9 68.2 73.9 63.9
13 67.7 66.4 65.4 63.9 63.6 63.7 63.4 64.9 66.8 68.6 70.2 71.7 72.5 73.9 74.3 72.8 71.4 67.4 66.1 66.8 67.0 65.6 65.9 64.6 67.7 74.3 63.4
14 64.1 65.4 65.2 62.9 63.2 62.6 62.4 63.9 66.2 67.7 69.5 71.5 72.4 73.5 73.8 73.1 70.0 67.5 65.8 65.6 64.9 64.4 64.2 63.4 66.8 73.8 62.4
15 63.9 64.3 64.1 64.3 62.7 61.1 61.4 62.5 64.7 67.5 70.0 70.5 71.3 71.8 72.4 72.1 69.0 66.4 64.6 64.3 63.7 63.5 63.0 63.3 65.9 72.4 61.1
16 63.8 62.0 62.2 61.4 61.1 60.4 60.1 61.1 63.4 63.7 64.5 66.2 68.0 69.4 69.6 68.9 64.5 62.0 60.9 60.9 60.6 60.6 61.3 60.4 63.2 69.6 60.1
17 57.1 53.3 52.4 49.9 48.6 47.5 45.6 45.2 44.9 45.4 45.2 44.4 43.9 43.9 44.2 44.5 44.8 46.0 45.5 40.1 39.4 37.8 36.1 34.4 45.0 57.1 34.4
18 35.2 36.4 35.4 33.1 32.6 32.5 32.9 34.9 35.0 36.4 37.3 41.6 41.6 41.6 41.9 41.2 41.6 42.1 42.0 42.0 42.3 42.6 43.2 43.3 38.7 43.3 32.5
19 42.8 40.8 40.4 39.7 40.1 40.0 39.7 39.7 41.9 43.4 44.8 46.9 48.3 48.8 49.3 49.9 49.3 47.4 47.2 47.2 46.8 46.4 46.2 48.7 44.8 49.9 39.7
20 48.3 47.6 47.6 47.1 46.5 46.2 46.4 49.2 48.3 48.5 50.3 51.2 53.8 53.8 52.4 52.7 51.7 50.6 49.8 49.1 48.3 48.5 47.8 46.8 49.3 53.8 46.2
21 46.5 47.1 47.0 46.7 46.9 46.7 46.5 47.3 49.3 51.0 53.2 54.7 57.0 58.2 59.3 59.8 58.8 56.6 56.2 55.4 55.4 57.2 57.7 57.3 53.0 59.8 46.5
22 58.0 58.2 55.3 53.7 52.1 53.5 53.1 53.3 54.8 56.8 58.5 59.4 61.6 62.7 63.3 63.3 62.2 59.9 58.5 58.8 58.0 58.1 59.4 58.9 58.0 63.3 52.1
23 58.0 58.3 57.5 56.6 56.9 57.3 57.2 57.9 59.0 60.6 61.4 63.5 65.0 66.4 67.0 67.0 65.6 64.8 64.7 63.8 64.5 65.8 65.4 65.6 62.1 67.0 56.6
24 63.6 50.9 48.1 45.3 43.5 40.4 37.3 35.4 36.9 39.7 41.7 43.1 44.1 45.1 45.6 46.0 44.6 42.2 41.7 41.6 41.7 42.8 41.5 41.2 43.5 63.6 35.4
25 42.9 42.3 43.2 42.8 42.5 44.1 45.1 45.1 46.6 47.3 47.4 49.7 52.8 54.7 56.5 56.1 54.5 51.9 51.4 52.9 57.2 57.2 58.0 59.4 50.1 59.4 42.3
26 58.9 52.4 52.4 56.2 54.1 55.7 53.5 55.4 54.6 57.9 56.5 59.6 60.8 61.4 62.0 60.7 58.6 56.7 56.0 59.5 61.0 61.2 59.2 58.9 57.6 62.0 52.4
27 58.7 60.7 60.3 59.2 58.2 59.0 60.0 60.5 61.0 60.9 60.5 60.9 62.4 63.0 63.8 64.1 64.0 63.2 62.6 63.1 62.8 62.5 62.1 61.3 61.5 64.1 58.2
28 60.7 60.3 59.2 58.8 57.8 57.1 56.6 56.4 56.4 57.5 57.9 60.0 57.1 50.6 49.8 49.9 49.9 48.8 45.3 40.7 38.4 36.6 34.6 33.5 51.4 60.7 33.5
29 33.3 33.5 34.1 33.2 32.3 32.2 33.1 33.4 33.0 34.1 34.3 33.7 34.0 34.2 35.4 36.1 34.2 31.4 30.6 29.8 30.2 30.3 30.2 30.6 32.8 36.1 29.8
30 30.8 30.2 29.7 30.2 29.8 30.3 29.8 29.9 31.6 32.7 33.6 35.7 36.3 35.4 32.9 33.2 34.4 34.0 33.2 33.2 32.5 33.0 33.5 33.7 32.5 36.3 29.7
31 33.4 33.9 34.1 34.4 35.0 35.2 35.4 36.1 38.4 39.9 42.1 42.7 45.0 44.8 45.0 43.7 42.4 41.0 41.0 41.5 39.6 37.1 33.6 34.0 38.7 45.0 33.4
MEAN 57.8 56.6 56.0 55.4 54.8 54.9 54.5 55.3 56.7 58.1 59.3 60.6 61.8 62.4 62.8 62.6 61.5 59.6 58.3 57.9 57.8 57.9 57.6 57.2 58.2
MAX 71.5 70.5 69.2 69.4 68.8 69.6 68.3 70.6 72.8 73.3 74.2 75.7 77.5 80.3 81.9 81.7 80.6 78.9 77.9 76.4 75.3 76.3 74.4 72.7 81.9
MIN 30.8 30.2 29.7 30.2 29.8 30.3 29.8 29.9 31.6 32.7 33.6 33.7 34.0 34.2 32.9 33.2 34.2 31.4 30.6 29.8 30.2 30.3 30.2 30.6 29.7
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =58.2 Deg F
MAXIMUM TEMPERATURE =81.9 Deg F DATE OF OCCURRENCE =10/4 AT 1500 MAXIMUM DAILY MEAN =74.2 Deg F DATE OF OCCURRENCE =10/4
MINIMUM TEMPERATURE =29.7 Deg F DATE OF OCCURRENCE =10/30 AT 0300 MINUMUM DAILY MEAN =32.5 Deg F DATE OF OCCURRENCE =10/30
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for NOVEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 35.2 35.5 34.8 35.0 34.8 35.2 35.3 35.9 37.5 39.6 42.6 43.1 44.6 46.6 47.0 46.8 46.3 45.2 44.1 43.6 43.9 43.6 45.8 46.4 41.2 47.0 34.8
2 45.9 45.9 46.2 46.3 45.8 44.6 44.8 44.4 43.8 47.2 46.5 46.1 45.1 43.8 42.9 41.1 38.5 37.3 36.8 36.5 36.1 36.5 36.9 36.1 42.3 47.2 36.1
3 33.2 31.0 29.7 30.5 31.7 31.3 31.3 31.1 31.1 31.3 31.1 30.8 30.1 31.5 33.0 33.3 33.0 32.3 32.5 32.6 32.3 32.6 32.8 32.6 31.8 33.3 29.7
4 32.6 32.7 32.6 31.5 32.2 31.5 31.5 31.6 32.5 33.3 34.4 34.9 35.1 35.9 36.2 35.5 34.3 33.0 31.7 32.1 33.1 34.3 34.6 34.6 33.4 36.2 31.5
5 34.4 33.7 35.2 32.9 35.1 32.8 32.3 31.9 31.8 32.2 29.9 29.4 30.2 30.6 29.4 27.9 28.1 26.4 27.6 28.3 29.5 29.1 29.0 28.5 30.7 35.2 26.4
6 28.6 28.9 29.0 29.4 28.9 27.2 25.0 24.8 27.3 29.0 29.5 30.7 32.0 32.7 33.2 33.3 32.6 31.9 31.6 30.4 30.3 30.3 30.0 30.8 29.9 33.3 24.8
7 30.2 29.4 29.4 28.5 29.0 28.4 27.0 26.9 28.4 29.6 32.0 33.4 34.3 35.3 36.0 35.6 33.3 31.9 32.3 32.0 31.5 31.3 31.1 31.4 31.2 36.0 26.9
8 30.9 31.0 30.7 30.8 30.4 30.0 29.9 30.0 31.8 32.8 33.2 35.1 36.1 37.2 38.0 38.4 37.9 36.3 36.3 36.5 36.5 37.9 36.7 36.8 34.2 38.4 29.9
9 37.2 36.5 35.7 35.4 35.3 36.3 35.8 35.6 37.2 38.0 39.5 40.4 42.0 43.1 43.8 43.8 43.0 41.9 41.7 42.2 42.8 43.1 43.0 43.3 39.8 43.8 35.3
10 43.3 42.7 43.2 43.1 43.7 44.4 42.7 43.1 47.5 50.5 51.7 52.3 52.5 53.0 53.0 53.5 51.6 50.7 49.9 51.0 51.6 51.0 52.4 53.6 48.8 53.6 42.7
11 49.2 49.3 48.9 49.2 47.0 47.9 49.0 49.3 49.1 54.0 54.6 54.8 56.6 57.7 59.2 59.9 58.4 57.2 55.3 52.9 50.7 51.5 54.3 50.1 52.8 59.9 47.0
12 48.8 50.4 47.4 43.7 41.0 40.6 37.3 33.5 31.5 30.3 31.7 32.3 32.0 32.3 33.6 34.4 32.1 34.6 34.3 33.3 32.9 31.8 31.7 31.3 36.0 50.4 30.3
13 30.7 31.0 31.0 31.2 31.4 31.6 31.8 31.1 32.9 35.1 37.1 38.4 40.0 42.6 43.9 44.7 44.6 44.6 44.7 44.2 44.7 44.1 43.5 44.1 38.3 44.7 30.7
14 45.2 44.3 43.5 43.5 42.7 43.0 42.9 42.8 44.4 46.3 46.0 45.8 47.0 48.9 49.9 47.1 45.7 45.6 46.2 47.4 47.3 46.6 43.4 45.8 45.5 49.9 42.7
15 45.5 45.6 45.7 45.4 45.9 45.4 43.5 42.4 42.7 43.6 44.1 44.0 45.8 45.7 44.5 41.4 36.4 36.8 34.9 32.6 33.1 32.7 32.0 30.5 40.8 45.9 30.5
16 29.8 29.2 28.9 28.7 28.4 28.1 27.8 28.1 28.4 28.7 28.8 28.6 28.8 29.3 29.6 29.6 30.2 30.5 29.6 29.3 28.9 28.7 29.5 29.2 29.0 30.5 27.8
17 28.6 28.4 27.8 27.3 27.3 27.1 27.4 27.8 29.9 30.4 32.2 33.2 34.8 35.8 36.9 37.1 35.0 34.7 34.7 35.3 35.5 34.8 35.2 35.4 32.2 37.1 27.1
18 34.0 33.4 34.0 32.2 32.0 33.9 35.2 35.9 40.7 33.7 30.7 31.8 31.6 30.4 30.6 30.6 29.4 28.6 29.0 27.6 28.2 27.3 26.8 26.3 31.4 40.7 26.3
19 25.9 25.3 24.9 24.7 24.6 24.5 24.4 23.9 24.5 25.8 27.4 28.4 28.2 29.4 29.8 29.8 28.8 27.4 26.4 26.4 27.7 27.8 28.2 27.3 26.7 29.8 23.9
20 28.3 28.4 28.9 28.8 28.9 29.9 31.3 32.5 34.2 36.0 38.4 39.1 41.6 44.6 47.1 46.0 45.2 44.4 43.0 42.2 44.3 45.4 45.5 45.1 38.3 47.1 28.3
21 44.4 43.1 43.1 43.4 42.7 42.7 43.0 44.3 46.3 47.7 48.9 50.3 51.5 52.8 53.8 53.8 51.2 50.3 50.3 49.6 49.9 50.4 50.3 50.8 48.1 53.8 42.7
22 49.9 48.3 47.1 47.6 48.4 46.3 47.8 47.7 49.0 51.2 ------55.1 56.4 56.8 56.0 55.1 54.1 54.3 54.5 54.6 54.7 53.3 51.8 51.8 56.8 46.3
23 48.8 48.5 47.7 47.6 46.9 46.6 46.2 47.1 53.0 54.9 52.7 53.1 55.6 55.1 54.7 54.7 54.8 54.6 48.3 41.8 38.4 38.2 37.5 34.8 48.4 55.6 34.8
24 33.1 31.2 30.8 30.2 30.4 29.5 29.6 29.5 29.7 30.0 30.6 30.9 31.2 31.7 33.0 33.8 31.9 30.7 30.1 29.7 29.1 28.7 29.2 29.0 30.6 33.8 28.7
25 28.5 28.5 28.2 27.3 26.5 27.3 26.8 28.6 30.4 32.2 33.5 34.2 34.9 35.2 35.5 35.1 35.3 36.3 37.2 35.1 34.8 33.0 33.7 35.7 32.2 37.2 26.5
26 35.6 35.0 34.1 33.9 33.9 33.7 33.4 33.7 34.7 34.6 35.1 35.2 35.2 34.9 34.9 35.0 34.4 32.3 30.8 30.4 30.1 30.4 30.3 30.4 33.4 35.6 30.1
27 32.4 31.5 30.9 30.5 28.2 27.6 26.5 26.3 26.3 26.7 27.3 28.4 29.7 29.8 29.8 29.1 29.1 28.5 28.1 27.8 27.3 27.1 26.1 25.5 28.4 32.4 25.5
28 25.3 25.6 25.8 24.8 24.5 25.1 24.9 24.5 25.9 27.2 28.1 29.1 29.2 28.5 29.1 29.8 28.6 27.6 26.9 27.0 27.4 27.6 27.3 26.7 26.9 29.8 24.5
29 26.9 27.6 27.8 28.1 26.7 26.6 26.4 26.4 24.8 26.3 30.8 31.5 32.6 31.1 32.4 32.6 31.7 30.7 31.4 30.7 31.5 31.5 30.1 30.3 29.4 32.6 24.8
30 31.1 32.6 33.6 32.4 32.0 32.5 31.8 31.6 32.3 32.3 36.2 35.2 36.2 36.7 36.6 35.8 36.8 33.9 35.8 32.4 34.7 32.5 35.1 35.1 34.0 36.8 31.1
MEAN 35.8 35.5 35.2 34.8 34.5 34.4 34.1 34.1 35.3 36.3 36.7 37.3 38.7 39.3 39.8 39.5 38.5 37.7 37.2 36.5 36.6 36.5 36.5 36.3 36.5
MAX 49.9 50.4 48.9 49.2 48.4 47.9 49.0 49.3 53.0 54.9 54.6 54.8 56.6 57.7 59.2 59.9 58.4 57.2 55.3 54.5 54.6 54.7 54.3 53.6 59.9
MIN 25.3 25.3 24.9 24.7 24.5 24.5 24.4 23.9 24.5 25.8 27.3 28.4 28.2 28.5 29.1 27.9 28.1 26.4 26.4 26.4 27.3 27.1 26.1 25.5 23.9
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =718 DATA RECOVERY RATE =
MONTHLY MEAN =36.5 Deg F
MAXIMUM TEMPERATURE =59.9 Deg F DATE OF OCCURRENCE =11/11 AT 1600 MAXIMUM DAILY MEAN =52.8 Deg F DATE OF OCCURRENCE =11/11
MINIMUM TEMPERATURE =23.9 Deg F DATE OF OCCURRENCE =11/19 AT 0800 MINUMUM DAILY MEAN =26.7 Deg F DATE OF OCCURRENCE =11/19
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.7%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for DECEMBER, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 35.3 36.8 37.0 35.5 35.5 36.0 36.2 37.1 36.5 37.7 35.0 36.3 36.0 37.3 38.2 37.7 36.5 38.3 38.9 36.5 36.6 37.8 39.3 40.2 37.0 40.2 35.0
2 36.0 35.0 36.3 37.4 38.0 37.3 34.6 35.6 37.1 38.5 38.4 38.6 39.7 39.3 39.8 38.8 37.2 36.0 38.9 39.1 40.1 40.7 41.6 39.0 38.0 41.6 34.6
3 39.7 38.0 39.8 39.0 40.5 40.3 38.5 37.5 38.2 38.5 37.8 39.2 39.7 40.6 40.6 39.9 38.4 39.6 39.5 38.6 39.4 40.7 38.9 38.5 39.2 40.7 37.5
4 37.6 37.4 36.3 36.3 37.3 35.4 35.3 35.2 35.5 36.3 37.3 37.9 39.1 39.5 39.7 38.9 37.4 36.2 36.5 35.8 35.8 37.0 37.0 37.0 37.0 39.7 35.2
5 36.4 37.8 37.0 36.0 36.0 35.1 35.7 35.8 35.4 36.8 36.4 37.9 37.9 38.5 38.7 38.7 37.1 35.7 36.2 36.9 35.8 35.1 34.3 35.1 36.5 38.7 34.3
6 35.9 36.8 37.2 37.6 33.4 31.4 31.4 33.7 36.4 35.6 34.6 33.8 35.9 36.7 37.0 35.5 33.3 32.8 36.1 33.8 35.7 34.1 34.4 35.2 34.9 37.6 31.4
7 35.8 34.2 34.6 34.1 34.5 36.1 33.5 34.7 36.0 34.8 38.8 38.0 40.4 40.3 38.2 37.0 35.2 39.7 39.7 39.5 38.3 37.1 38.6 38.0 37.0 40.4 33.5
8 39.3 38.5 37.9 35.2 34.2 35.0 35.0 34.4 34.8 37.0 38.4 39.4 38.8 38.1 39.3 38.7 35.6 34.6 33.9 33.9 32.4 32.0 32.7 31.6 35.9 39.4 31.6
9 29.9 28.2 26.9 26.7 26.4 25.5 25.1 23.8 24.5 24.4 27.0 27.8 27.1 27.0 26.8 26.7 26.4 26.6 26.2 26.6 27.0 26.3 25.9 25.2 26.4 29.9 23.8
10 24.0 23.6 23.6 24.0 23.6 22.7 22.2 22.2 22.7 24.8 26.5 26.8 27.2 28.2 28.6 28.9 27.6 26.5 25.5 25.8 25.8 26.3 26.7 26.6 25.4 28.9 22.2
11 26.9 27.8 27.3 27.2 29.5 28.3 29.5 28.8 29.3 30.2 32.9 35.8 36.7 37.2 37.8 37.9 36.8 35.8 37.2 37.4 37.8 38.8 36.8 36.8 33.3 38.8 26.9
12 37.8 37.8 37.2 37.5 39.8 40.2 40.1 39.6 40.9 40.7 44.4 45.1 45.3 45.1 43.9 43.1 42.1 41.1 40.9 41.2 41.6 40.3 38.9 37.8 40.9 45.3 37.2
13 37.3 35.9 34.6 32.0 28.3 26.8 27.2 27.8 28.4 29.1 30.0 31.5 31.8 31.9 32.1 32.0 32.1 31.7 31.7 31.8 32.5 32.1 32.5 33.3 31.4 37.3 26.8
14 33.7 34.0 33.9 34.3 35.6 35.5 36.8 38.2 38.8 39.5 36.9 36.0 37.0 38.1 38.5 38.6 40.7 45.1 46.0 44.8 42.9 42.6 42.2 41.3 38.8 46.0 33.7
15 40.4 40.1 39.2 39.1 37.0 37.4 35.7 32.5 31.1 30.9 32.6 33.1 33.0 33.2 33.2 32.5 30.3 28.4 27.6 28.3 29.0 28.9 29.8 29.8 33.1 40.4 27.6
16 29.3 29.9 30.8 31.4 32.0 34.0 33.3 34.2 35.5 36.5 37.5 39.3 41.3 42.7 43.5 42.8 38.5 32.7 29.6 33.8 37.1 37.1 38.1 38.6 35.8 43.5 29.3
17 45.4 46.7 46.6 42.5 39.6 40.3 34.3 35.2 36.3 35.5 38.6 39.2 38.9 39.3 39.0 38.1 36.8 36.5 35.9 35.4 35.8 36.3 36.6 35.6 38.5 46.7 34.3
18 35.5 36.8 36.5 37.2 37.2 38.5 38.2 37.8 39.0 39.7 40.4 45.5 45.5 45.8 46.1 45.2 44.1 43.6 43.6 44.8 39.7 39.8 46.8 44.0 41.3 46.8 35.5
19 45.1 44.6 43.9 43.3 43.5 42.7 42.7 43.1 42.2 45.3 46.7 47.2 47.3 47.1 45.8 46.2 44.8 44.9 43.4 43.3 46.7 46.5 47.6 47.2 45.1 47.6 42.2
20 46.2 45.6 46.3 43.2 43.5 44.6 43.7 44.1 48.1 50.6 50.9 46.5 46.7 45.3 44.1 44.5 49.1 45.7 49.7 50.1 49.1 48.7 48.0 48.2 46.8 50.9 43.2
21 48.7 45.9 47.0 48.3 45.2 43.6 43.1 42.9 46.3 49.3 50.7 50.5 46.8 48.1 50.4 51.4 50.1 49.7 48.6 48.6 49.6 47.9 46.8 49.5 47.9 51.4 42.9
22 50.2 50.0 48.7 44.4 37.6 41.5 44.4 45.7 43.5 46.0 44.1 46.6 48.1 44.6 43.2 40.7 40.2 38.5 38.3 38.1 38.3 38.8 39.9 40.0 43.0 50.2 37.6
23 41.0 41.6 42.1 41.4 41.6 41.2 41.4 41.5 42.4 43.6 41.0 38.0 37.0 40.9 43.6 39.6 40.6 39.5 40.2 39.6 39.4 40.2 40.2 39.2 40.7 43.6 37.0
24 39.7 39.6 40.1 39.6 39.3 40.1 40.8 39.6 39.8 40.2 41.1 43.8 45.1 45.0 45.1 44.6 46.2 46.2 45.5 43.6 42.6 43.8 42.6 44.3 42.4 46.2 39.3
25 39.8 37.1 36.0 32.8 31.7 31.8 31.4 30.7 30.0 30.0 30.6 30.4 30.3 30.2 29.9 30.1 29.9 29.7 29.5 29.4 29.1 30.5 30.2 29.1 31.3 39.8 29.1
26 29.1 28.9 29.2 29.1 29.1 29.7 29.5 28.1 27.6 28.1 28.3 30.2 30.9 30.8 32.5 33.5 32.4 31.5 30.8 31.8 33.6 34.2 32.3 32.3 30.6 34.2 27.6
27 31.8 32.1 31.1 31.5 31.3 30.8 30.1 29.9 31.3 31.0 31.9 34.8 37.2 35.3 38.7 39.7 39.6 39.8 39.2 38.4 38.0 37.8 36.7 35.6 34.7 39.8 29.9
28 36.3 36.3 34.2 32.8 32.3 31.5 31.0 31.5 31.1 31.8 32.8 34.2 36.2 39.5 40.9 39.4 38.1 37.7 37.2 37.7 38.4 36.3 35.8 36.8 35.4 40.9 31.0
29 39.5 41.4 41.6 41.7 42.4 42.9 43.2 43.1 43.3 44.8 44.9 45.2 48.1 51.1 50.6 48.9 40.4 34.1 38.6 37.3 36.8 35.9 35.2 35.5 41.9 51.1 34.1
30 35.2 34.1 33.7 32.9 31.9 31.0 29.7 28.0 28.3 28.5 28.5 28.2 28.0 27.8 27.7 27.6 26.6 26.2 24.7 23.3 23.5 23.0 23.2 23.6 28.1 35.2 23.0
31 23.4 22.5 22.1 22.2 21.9 21.7 21.2 21.4 22.3 24.9 24.9 25.6 25.7 25.5 25.5 25.1 24.7 23.5 23.0 22.3 22.9 22.5 22.0 22.1 23.3 25.7 21.2
MEAN 36.8 36.6 36.4 35.7 35.2 35.1 34.7 34.6 35.2 36.1 36.8 37.5 38.0 38.4 38.7 38.1 37.1 36.4 36.5 36.4 36.5 36.4 36.5 36.4 36.5
MAX 50.2 50.0 48.7 48.3 45.2 44.6 44.4 45.7 48.1 50.6 50.9 50.5 48.1 51.1 50.6 51.4 50.1 49.7 49.7 50.1 49.6 48.7 48.0 49.5 51.4
MIN 23.4 22.5 22.1 22.2 21.9 21.7 21.2 21.4 22.3 24.4 24.9 25.6 25.7 25.5 25.5 25.1 24.7 23.5 23.0 22.3 22.9 22.5 22.0 22.1 21.2
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =36.5 Deg F
MAXIMUM TEMPERATURE =51.4 Deg F DATE OF OCCURRENCE =12/21 AT 1600 MAXIMUM DAILY MEAN =47.9 Deg F DATE OF OCCURRENCE =12/21
MINIMUM TEMPERATURE =21.2 Deg F DATE OF OCCURRENCE =12/31 AT 0700 MINUMUM DAILY MEAN =23.3 Deg F DATE OF OCCURRENCE =12/31
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants
APPENDIX C: EQUIPMENT CALIBRATIONS FOR FOURTH QUARTER
2024
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.01956 Ta (°C)21.3
Correlation 0.99995 Ta (°K)294.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
open 2.65 22.770 42.526 584.900 0.932 1.085 0.0632
1 2.58 24.150 45.104 582.323 0.928 1.071 0.0624
2 2.55 26.510 49.511 577.915 0.921 1.064 0.0620
3 2.61 28.690 53.583 573.844 0.915 1.077 0.0627
4 2.58 30.300 56.590 570.837 0.910 1.071 0.0624
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.085 1.114 2.7% -1.4%
1.071 1.109 3.6%-1.9%
1.064 1.100 3.3%-2.7%
1.077 1.092 1.4%<10.1% Design*
1.071 1.086 1.4%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 18.5 34.458 592.969 0.9451
Operational Flow Rate: 1.1301
%DIFF: 0.00%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.00455696
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "A"
10/10/24
P7953
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)21.3
Correlation 0.99995 Ta (°K)294.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.65 22.770 42.526 584.900 0.932 1.085 0.0632
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.085 1.114 2.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.450 34.458 592.969 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.130 -2.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0998
Comments:
C3 "A"
10/10/24
P7953
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.01956 Ta (°C)21.7
Correlation 0.99995 Ta (°K)294.9
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
open 2.69 22.700 42.396 585.031 0.932 1.094 0.0637
1 2.66 24.500 45.757 581.669 0.927 1.088 0.0633
2 2.63 26.830 50.109 577.318 0.920 1.081 0.0630
3 2.58 28.870 53.919 573.508 0.914 1.071 0.0624
4 2.52 31.490 58.812 568.614 0.906 1.059 0.0617
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.094 1.117 2.1% -1.2%
1.088 1.110 2.1%-1.8%
1.081 1.101 1.8%-2.5%
1.071 1.094 2.1%<10.1% Design*
1.059 1.084 2.3%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 18.4 34.402 593.025 0.9452
Operational Flow Rate: 1.1330
%DIFF: 0.26%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.00638986
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "B"
10/10/24
P7958
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)21.7
Correlation 0.99995 Ta (°K)294.9
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.69 22.700 42.396 585.031 0.932 1.094 0.0637
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.094 1.117 2.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.420 34.402 593.025 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.133 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1088
Comments:
C3 "B"
10/10/24
P7958
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.01956 Ta (°C)22.6
Correlation 0.99995 Ta (°K)295.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
open 2.74 22.840 42.657 584.770 0.932 1.105 0.0643
1 2.72 24.080 44.973 582.454 0.928 1.101 0.0640
2 2.66 26.370 49.250 578.177 0.922 1.089 0.0633
3 2.58 29.160 54.461 572.966 0.913 1.073 0.0624
4 2.59 31.800 59.391 568.035 0.905 1.075 0.0625
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.105 1.118 1.2% -1.0%
1.101 1.114 1.1%-1.5%
1.089 1.105 1.5%-2.2%
1.073 1.095 2.0%<10.1% Design*
1.075 1.085 0.9%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 18.5 34.608 592.819 0.9448
Operational Flow Rate: 1.1345
%DIFF: 0.40%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.00676369
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "C"
10/10/24
P7959
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.6
Correlation 0.99995 Ta (°K)295.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.74 22.840 42.657 584.770 0.932 1.105 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.105 1.118 1.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.530 34.608 592.819 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.135 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1210
Comments:
C3 "C"
10/10/24
P7959
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.01956 Ta (°C)22.5
Correlation 0.99995 Ta (°K)295.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
open 2.78 23.290 43.498 583.929 0.931 1.113 0.0647
1 2.65 25.030 46.747 580.679 0.925 1.087 0.0632
2 2.63 27.740 51.809 575.618 0.917 1.083 0.0630
3 2.62 29.520 55.133 572.294 0.912 1.081 0.0629
4 2.55 31.980 59.727 567.699 0.905 1.067 0.0620
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.113 1.132 1.7% 0.2%
1.087 1.125 3.5%-0.4%
1.083 1.115 2.9%-1.3%
1.081 1.108 2.5%<10.1% Design*
1.067 1.099 3.0%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 18.8 35.018 592.408 0.9442
Operational Flow Rate: 1.1490
%DIFF: 1.69%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.02030635
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "D"
10/10/24
P7954
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.5
Correlation 0.99995 Ta (°K)295.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.78 23.290 43.498 583.929 0.931 1.113 0.0647
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.113 1.132 1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.750 35.018 592.408 0.944
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.149 0.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1295
Comments:
C3 "D"
10/10/24
P7954
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.01956 Ta (°C)22.9
Correlation 0.99995 Ta (°K)296.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
open 2.49 21.940 40.976 586.450 0.935 1.055 0.0613
1 2.50 23.250 43.423 584.004 0.931 1.057 0.0614
2 2.48 25.290 47.233 580.194 0.925 1.053 0.0612
3 2.45 27.240 50.875 576.552 0.919 1.047 0.0608
4 2.39 29.680 55.432 571.995 0.912 1.034 0.0601
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.055 1.120 6.1% -0.9%
1.057 1.115 5.5%-1.4%
1.053 1.107 5.1%-2.0%
1.047 1.100 5.1%<10.1% Design*
1.034 1.091 5.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 18.0 33.618 593.809 0.9464
Operational Flow Rate: 1.1344
%DIFF: 0.39%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.00447091
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "E"
10/10/24
P7955
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.9
Correlation 0.99995 Ta (°K)296.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.49 21.940 40.976 586.450 0.935 1.055 0.0613
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.055 1.120 6.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.000 33.618 593.809 0.946
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.134 -5.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0649
Comments:
C3 "E"
10/10/24
P7955
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.01956 Ta (°C)23.0
Correlation 0.99995 Ta (°K)296.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.83 25.830 48.241 567.934 0.922 1.134 0.0659
1 2.58 27.400 51.174 565.002 0.917 1.083 0.0629
2 2.44 29.680 55.432 560.744 0.910 1.054 0.0612
3 2.53 30.230 56.459 559.717 0.908 1.073 0.0623
4 2.51 32.280 60.288 555.888 0.902 1.069 0.0621
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.134 1.129 -0.5% -0.1%
1.083 1.123 3.7%-0.6%
1.054 1.116 5.8%-1.3%
1.073 1.113 3.8%<10.1% Design*
1.069 1.107 3.6%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.7 40.435 575.741 0.9344
Operational Flow Rate: 1.1415
%DIFF: 1.02%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
A
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.0
Correlation 0.99995 Ta (°K)296.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.83 25.830 48.241 567.934 0.922 1.134 0.0659
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.134 1.129 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.650 40.435 575.741 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.142 1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1467
Comments:
Hi Country
10/10/24
A
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.01956 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.66 25.580 47.774 568.401 0.922 1.101 0.0639
1 2.60 27.080 50.576 565.600 0.918 1.088 0.0632
2 2.57 29.530 55.152 561.024 0.910 1.082 0.0628
3 2.55 31.170 58.215 557.961 0.906 1.078 0.0626
4 2.43 34.190 63.855 552.321 0.896 1.053 0.0611
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.101 1.118 1.6% -1.1%
1.088 1.113 2.3%-1.5%
1.082 1.103 1.9%-2.4%
1.078 1.098 1.9%<10.1% Design*
1.053 1.085 3.1%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.4 39.968 576.208 0.9351
Operational Flow Rate: 1.1340
%DIFF: 0.35%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
B
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.66 25.580 47.774 568.401 0.922 1.101 0.0639
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.101 1.118 1.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.400 39.968 576.208 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.134 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1159
Comments:
Hi Country
10/10/24
B
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.01956 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.70 25.780 48.148 568.028 0.922 1.108 0.0644
1 2.64 27.330 51.043 565.133 0.917 1.096 0.0637
2 2.62 29.390 54.890 561.286 0.911 1.092 0.0634
3 2.53 31.200 58.271 557.905 0.905 1.074 0.0623
4 2.50 33.730 62.996 553.180 0.898 1.067 0.0620
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.108 1.123 1.3% -0.7%
1.096 1.117 1.9%-1.1%
1.092 1.111 1.7%-1.7%
1.074 1.104 2.9%<10.1% Design*
1.067 1.097 2.8%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.5 40.154 576.021 0.9348
Operational Flow Rate: 1.1361
%DIFF: 0.54%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
C
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.70 25.780 48.148 568.028 0.922 1.108 0.0644
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.123 1.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.500 40.154 576.021 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.136 -0.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1217
Comments:
Hi Country
10/10/24
C
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.4
Slope (m)1.04605 Pa(mm Hg)616.1
Intercept (b)-0.01956 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.69 25.610 47.830 568.270 0.922 1.106 0.0643
1 2.61 27.370 51.118 564.983 0.917 1.090 0.0633
2 2.55 29.330 54.778 561.323 0.911 1.077 0.0626
3 2.49 32.190 60.120 555.981 0.902 1.065 0.0619
4 2.41 33.980 63.463 552.638 0.897 1.048 0.0609
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.106 1.126 1.8% -0.4%
1.090 1.121 2.9%-0.8%
1.077 1.115 3.5%-1.3%
1.065 1.106 3.9%<10.1% Design*
1.048 1.101 5.1%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.4 39.893 576.208 0.9352
Operational Flow Rate: 1.1405
%DIFF: 0.93%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
D
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.4
Slope (m)1.04605 Pa(mm Hg)616.1
Intercept (b)-0.0196 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.69 25.610 47.830 568.270 0.922 1.106 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.126 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.360 39.893 576.208 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.141 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1200
Comments:
Hi Country
10/10/24
D
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.01956 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.61 25.330 47.308 568.718 0.923 1.090 0.0633
1 2.57 27.330 51.043 564.983 0.917 1.082 0.0628
2 2.55 29.340 54.797 561.229 0.911 1.078 0.0626
3 2.47 31.450 58.738 557.288 0.905 1.061 0.0616
4 2.41 33.410 62.398 553.628 0.899 1.049 0.0609
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.090 1.133 3.9% 0.3%
1.082 1.127 4.1%-0.3%
1.078 1.121 4.0%-0.8%
1.061 1.115 5.1%<10.1% Design*
1.049 1.109 5.8%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.3 39.744 576.282 0.9355
Operational Flow Rate: 1.1460
%DIFF: 1.42%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
E
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.61 25.330 47.308 568.718 0.923 1.090 0.0633
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.090 1.133 3.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.280 39.744 576.282 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.146 -2.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1013
Comments:
Hi Country
10/10/24
E
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.01956 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.67 25.650 47.905 568.121 0.922 1.102 0.0640
1 2.59 27.180 50.763 565.263 0.918 1.086 0.0631
2 2.62 29.080 54.311 561.714 0.912 1.092 0.0634
3 2.52 31.180 58.233 557.792 0.905 1.071 0.0622
4 2.48 33.360 62.305 553.721 0.899 1.063 0.0617
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.102 1.111 0.8% -1.6%
1.086 1.107 1.9%-2.1%
1.092 1.100 0.7%-2.7%
1.071 1.092 1.9%<10.1% Design*
1.063 1.085 2.1%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.5 40.210 575.815 0.9347
Operational Flow Rate: 1.1265
%DIFF: -0.31%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
F
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.67 25.650 47.905 568.121 0.922 1.102 0.0640
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.102 1.111 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.530 40.210 575.815 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.127 -1.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1170
Comments:
Hi Country
10/10/24
F
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.01956 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.69 25.810 48.204 567.822 0.922 1.107 0.0643
1 2.65 27.280 50.949 565.076 0.917 1.098 0.0638
2 2.62 29.150 54.442 561.584 0.912 1.092 0.0634
3 2.59 31.650 59.111 556.915 0.904 1.086 0.0631
4 2.55 33.070 61.763 554.263 0.900 1.078 0.0626
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.107 1.128 1.9% -0.2%
1.098 1.122 2.1%-0.7%
1.092 1.116 2.2%-1.2%
1.086 1.107 1.9%<10.1% Design*
1.078 1.103 2.3%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.6 40.323 575.703 0.9345
Operational Flow Rate: 1.1425
%DIFF: 1.11%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
G
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.69 25.810 48.204 567.822 0.922 1.107 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.107 1.128 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.590 40.323 575.703 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.143 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1209
Comments:
Hi Country
10/10/24
G
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.2
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.01956 Ta (°C)23.8
Correlation 0.99995 Ta (°K)297.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
open 2.65 25.640 47.886 568.064 0.922 1.099 0.0638
1 2.61 27.150 50.707 565.244 0.918 1.091 0.0633
2 2.59 29.270 54.666 561.285 0.911 1.087 0.0631
3 2.51 31.530 58.887 557.064 0.904 1.070 0.0621
4 2.46 33.540 62.641 553.310 0.898 1.060 0.0615
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.099 1.126 2.4% -0.4%
1.091 1.122 2.8%-0.7%
1.087 1.115 2.6%-1.3%
1.070 1.108 3.5%<10.1% Design*
1.060 1.102 4.0%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.5 40.192 575.759 0.9347
Operational Flow Rate: 1.1400
%DIFF: 0.88%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
10/10/24
H
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.2
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.8
Correlation 0.99995 Ta (°K)297.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.65 25.640 47.886 568.064 0.922 1.099 0.0638
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.126 2.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.520 40.192 575.759 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.140 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1122
Comments:
Hi Country
10/10/24
H
Tomy St-Laurent
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants
APPENDIX D: PM10 MONTHLY FLOW CHECKS FOR FOURTH QUARTER
2024

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)21.3
Correlation 0.99995 Ta (°K)294.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.65 22.770 42.526 584.900 0.932 1.085 0.0632
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.085 1.114 2.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.450 34.458 592.969 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.130 -2.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0998
Comments:
Tomy St-Laurent
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "A"
10/10/24
P7953
0.00455696
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)21.7
Correlation 0.99995 Ta (°K)294.9
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.69 22.700 42.396 585.031 0.932 1.094 0.0637
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.094 1.117 2.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.420 34.402 593.025 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.133 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1088
Comments:
Tomy St-Laurent
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "B"
10/10/24
P7958
0.00638986
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.6
Correlation 0.99995 Ta (°K)295.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.74 22.840 42.657 584.770 0.932 1.105 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.105 1.118 1.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.530 34.608 592.819 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.135 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1210
Comments:
Tomy St-Laurent
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "C"
10/10/24
P7959
0.00676369
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.5
Correlation 0.99995 Ta (°K)295.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.78 23.290 43.498 583.929 0.931 1.113 0.0647
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.113 1.132 1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.750 35.018 592.408 0.944
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.149 0.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1295
Comments:
Tomy St-Laurent
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "D"
10/10/24
P7954
0.02030635
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)836.5
Slope (m)1.04605 Pa(mm Hg)627.4
Intercept (b)-0.0196 Ta (°C)22.9
Correlation 0.99995 Ta (°K)296.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.49 21.940 40.976 586.450 0.935 1.055 0.0613
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.055 1.120 6.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.000 33.618 593.809 0.946
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.134 -5.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0649
Comments:
Tomy St-Laurent
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "E"
10/10/24
P7955
0.00447091
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)839.7
Slope (m)1.04605 Pa(mm Hg)629.8
Intercept (b)-0.0196 Ta (°C)-0.4
Correlation 0.99995 Ta (°K)272.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.91 23.910 44.655 585.171 0.929 1.092 0.0661
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.092 1.073 -1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.800 36.979 592.847 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.088 -2.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1066
Comments:
C3 "A"
11/7/24
P7953
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)839.7
Slope (m)1.04605 Pa(mm Hg)629.8
Intercept (b)-0.0196 Ta (°C)-0.4
Correlation 0.99995 Ta (°K)272.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.94 23.920 44.674 585.153 0.929 1.097 0.0664
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.097 1.075 -2.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.870 37.110 592.717 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.089 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1119
Comments:
C3 "B"
11/7/24
P7958
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)839.7
Slope (m)1.04605 Pa(mm Hg)629.8
Intercept (b)-0.0196 Ta (°C)-0.4
Correlation 0.99995 Ta (°K)272.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.88 23.940 44.711 585.115 0.929 1.086 0.0658
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.086 1.075 -1.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.800 36.979 592.847 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.090 -2.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1013
Comments:
C3 "C"
11/7/24
P7959
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)839.7
Slope (m)1.04605 Pa(mm Hg)629.8
Intercept (b)-0.0196 Ta (°C)-0.4
Correlation 0.99995 Ta (°K)272.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.96 24.370 45.515 584.312 0.928 1.101 0.0667
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.101 1.088 -1.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.050 37.446 592.380 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.104 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1169
Comments:
C3 "D"
11/7/24
P7954
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)839.7
Slope (m)1.04605 Pa(mm Hg)629.8
Intercept (b)-0.0196 Ta (°C)-0.4
Correlation 0.99995 Ta (°K)272.8
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.75 23.550 43.983 585.844 0.930 1.062 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.062 1.074 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.650 36.699 593.128 0.942
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.088 -4.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0757
Comments:
C3 "E"
11/7/24
P7955
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)841.2
Slope (m)1.04605 Pa(mm Hg)631.0
Intercept (b)-0.0196 Ta (°C)2.8
Correlation 0.99995 Ta (°K)276.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.83 24.340 45.459 585.493 0.928 1.082 0.0651
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.082 1.077 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.180 37.689 593.263 0.940
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.092 -2.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0974
Comments:
C3 "A"
12/6/24
P7953
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)841.2
Slope (m)1.04605 Pa(mm Hg)631.0
Intercept (b)-0.0196 Ta (°C)2.8
Correlation 0.99995 Ta (°K)276.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.83 24.310 45.403 585.549 0.928 1.082 0.0651
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.082 1.079 -0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.080 37.502 593.450 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.094 -2.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0976
Comments:
C3 "B"
12/6/24
P7958
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)841.2
Slope (m)1.04605 Pa(mm Hg)631.0
Intercept (b)-0.0196 Ta (°C)2.8
Correlation 0.99995 Ta (°K)276.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.82 24.230 45.253 585.699 0.928 1.080 0.0650
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.080 1.080 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.940 37.241 593.711 0.941
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.095 -3.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0959
Comments:
C3 "C"
12/6/24
P7959
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)841.2
Slope (m)1.04605 Pa(mm Hg)631.0
Intercept (b)-0.0196 Ta (°C)2.8
Correlation 0.99995 Ta (°K)276.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.92 24.640 46.019 584.933 0.927 1.099 0.0662
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.099 1.093 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.320 37.951 593.001 0.940
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.109 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1150
Comments:
C3 "D"
12/6/24
P7954
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)841.2
Slope (m)1.04605 Pa(mm Hg)631.0
Intercept (b)-0.0196 Ta (°C)2.8
Correlation 0.99995 Ta (°K)276.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.81 23.880 44.599 586.352 0.929 1.078 0.0649
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.078 1.079 0.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.730 36.849 594.103 0.942
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.094 -3.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0935
Comments:
C3 "E"
12/6/24
P7955
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.0
Correlation 0.99995 Ta (°K)296.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.83 25.830 48.241 567.934 0.922 1.134 0.0659
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.134 1.129 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.650 40.435 575.741 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.142 1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1467
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
A
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.66 25.580 47.774 568.401 0.922 1.101 0.0639
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.101 1.120 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.400 39.968 576.208 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.134 -1.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1139
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
B
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.5
Slope (m)1.04605 Pa(mm Hg)616.2
Intercept (b)-0.0196 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.70 25.780 48.148 568.028 0.922 1.108 0.0644
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.123 1.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.500 40.154 576.021 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.137 -0.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1221
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
C
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.4
Slope (m)1.04605 Pa(mm Hg)616.1
Intercept (b)-0.0196 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.69 25.610 47.830 568.270 0.922 1.106 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.126 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.360 39.893 576.208 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.141 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1200
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
D
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.5
Correlation 0.99995 Ta (°K)296.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.61 25.330 47.308 568.718 0.923 1.090 0.0633
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.090 1.133 3.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.280 39.744 576.282 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.147 -2.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1022
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
E
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.2
Correlation 0.99995 Ta (°K)296.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.67 25.650 47.905 568.121 0.922 1.102 0.0640
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.102 1.112 0.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.530 40.210 575.815 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.127 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1164
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
F
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.3
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.4
Correlation 0.99995 Ta (°K)296.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.69 25.810 48.204 567.822 0.922 1.107 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.107 1.128 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.590 40.323 575.703 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.143 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1209
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
G
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)821.2
Slope (m)1.04605 Pa(mm Hg)616.0
Intercept (b)-0.0196 Ta (°C)23.8
Correlation 0.99995 Ta (°K)297.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.65 25.640 47.886 568.064 0.922 1.099 0.0638
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.126 2.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.520 40.192 575.759 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.140 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1122
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
10/10/24
H
Tomy St-Laurent
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.86 24.360 45.496 571.955 0.926 1.095 0.0662
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.095 1.092 -0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.090 37.521 579.930 0.939
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.107 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1096
Comments:
Hi Country
11/7/24
A
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.76 24.010 44.842 572.609 0.927 1.076 0.0650
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.076 1.084 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.800 36.979 580.471 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.099 -3.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0904
Comments:
Hi Country
11/7/24
B
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.88 24.290 45.365 572.086 0.927 1.098 0.0664
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.098 1.088 -0.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.110 37.558 579.892 0.939
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.102 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1124
Comments:
Hi Country
11/7/24
C
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.87 24.040 44.898 572.553 0.927 1.096 0.0663
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.096 1.091 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.830 37.035 580.415 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.106 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1115
Comments:
Hi Country
11/7/24
D
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.90 23.750 44.357 573.094 0.928 1.102 0.0666
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.102 1.096 -0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.630 36.662 580.789 0.941
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.112 -1.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1181
Comments:
Hi Country
11/7/24
E
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.92 24.180 45.160 572.291 0.927 1.106 0.0669
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.078 -2.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.920 37.204 580.247 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.093 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1205
Comments:
Hi Country
11/7/24
F
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)823.2
Slope (m)1.04605 Pa(mm Hg)617.5
Intercept (b)-0.0196 Ta (°C)0.3
Correlation 0.99995 Ta (°K)273.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.88 24.350 45.477 571.974 0.926 1.098 0.0664
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.098 1.092 -0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.000 37.353 580.098 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.108 -1.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1144
Comments:
Hi Country
11/7/24
G
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)822.8
Slope (m)1.04605 Pa(mm Hg)617.2
Intercept (b)-0.0196 Ta (°C)0.8
Correlation 0.99995 Ta (°K)274.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.84 24.150 45.104 572.047 0.927 1.092 0.0660
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.092 1.091 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.870 37.110 580.041 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.106 -2.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1071
Comments:
Hi Country
11/7/24
H
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)824.8
Slope (m)1.04605 Pa(mm Hg)618.7
Intercept (b)-0.0196 Ta (°C)1.9
Correlation 0.99995 Ta (°K)275.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.92 24.370 45.515 573.136 0.926 1.108 0.0668
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.096 -1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.950 37.260 581.391 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.112 -0.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1240
Comments:
Hi Country
12/6/24
A
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)824.8
Slope (m)1.04605 Pa(mm Hg)618.7
Intercept (b)-0.0196 Ta (°C)1.9
Correlation 0.99995 Ta (°K)275.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.85 24.000 44.824 573.827 0.928 1.095 0.0660
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.095 1.088 -0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.720 36.830 581.821 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.102 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1088
Comments:
Hi Country
12/6/24
B
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)824.8
Slope (m)1.04605 Pa(mm Hg)618.7
Intercept (b)-0.0196 Ta (°C)1.9
Correlation 0.99995 Ta (°K)275.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.87 24.210 45.216 573.435 0.927 1.099 0.0662
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.091 -0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.110 37.558 581.093 0.939
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.105 -1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1126
Comments:
Hi Country
12/6/24
C
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)824.8
Slope (m)1.04605 Pa(mm Hg)618.7
Intercept (b)-0.0196 Ta (°C)1.9
Correlation 0.99995 Ta (°K)275.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.91 24.090 44.992 573.659 0.927 1.106 0.0667
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.094 -1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.880 37.129 581.522 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.110 -0.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1221
Comments:
Hi Country
12/6/24
D
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)825.0
Slope (m)1.04605 Pa(mm Hg)618.8
Intercept (b)-0.0196 Ta (°C)1.2
Correlation 0.99995 Ta (°K)274.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.81 23.880 44.599 574.201 0.928 1.086 0.0655
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.086 1.098 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.720 36.830 581.971 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.113 -2.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1004
Comments:
Hi Country
12/6/24
E
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)825.0
Slope (m)1.04605 Pa(mm Hg)618.8
Intercept (b)-0.0196 Ta (°C)1.2
Correlation 0.99995 Ta (°K)274.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.94 24.250 45.290 573.510 0.927 1.110 0.0670
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.110 1.080 -2.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.010 37.372 581.429 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.095 -0.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1247
Comments:
Hi Country
12/6/24
F
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)825.0
Slope (m)1.04605 Pa(mm Hg)618.8
Intercept (b)-0.0196 Ta (°C)1.4
Correlation 0.99995 Ta (°K)274.6
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.90 24.370 45.515 573.286 0.926 1.103 0.0666
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.103 1.094 -0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.020 37.390 581.411 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.110 -1.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1191
Comments:
Hi Country
12/6/24
G
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2023 Leak Performed (Pass/Fail)Pass
Calibration Date 1/18/24 Pressure (mb)825.0
Slope (m)1.04605 Pa(mm Hg)618.8
Intercept (b)-0.0196 Ta (°C)1.3
Correlation 0.99995 Ta (°K)274.5
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.86 24.300 45.384 573.417 0.927 1.095 0.0661
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.095 1.091 -0.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
19.950 37.260 581.541 0.940
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.106 -1.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1104
Comments:
Hi Country
12/6/24
H
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott / Fourth Quarter 2024 Summary Report
Trinity Consultants
APPENDIX E: PERFORMANCE AUDIT REPORT FOURTH QUARTER 2024

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants
PERFORMANCE AUDIT OF
PARTICULATE AND METEOROLOGICAL
MONITORING EQUIPMENT AT
RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
NOVEMBER 2024

Prepared By:

TRINITY CONSULTANTS
4525 Wasatch Blvd.
Suite 200
Salt Lake City, Utah
801-272-3000

December 2024

Project No. 244501.0030

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants i
TABLE OF CONTENTS
INTRODUCTION 1-1
PERFORMANCE AUDIT EQUIPMENT 2-1
PERFORMANCE AUDIT PROCEDURES 3-1
3.1 Copperton C3 and Hi-Country Monitoring Sites ........................................................ 3-1
3.2 Performance Audit Methods ..................................................................................... 3-2
3.2.1 PM10 ........................................................................................................................... 3-2
3.2.2 Wind Direction............................................................................................................. 3-3
3.2.3 Horizontal Wind Speed ................................................................................................. 3-3
3.2.4 Temperature ............................................................................................................... 3-3
3.2.5 Relative Humidity ........................................................................................................ 3-3
3.2.6 Barometric Pressure ..................................................................................................... 3-3
3.2.7 Precipitation ................................................................................................................ 3-3
PERFORMANCE AUDIT RESULTS 4-1
4.1 Copperton C3 Monitoring Station ............................................................................. 4-1
4.1.1 PM10 ........................................................................................................................... 4-1
4.1.2 Wind Direction............................................................................................................. 4-1
4.1.3 Wind Speed ................................................................................................................ 4-2
4.1.4 Temperature ............................................................................................................... 4-2
4.1.5 Relative Humidity ........................................................................................................ 4-2
4.1.6 Barometric Pressure ..................................................................................................... 4-2
4.1.7 Precipitation ................................................................................................................ 4-2
4.2 Hi-Country Monitoring Station ................................................................................. 4-2
4.2.1 PM10 ........................................................................................................................... 4-2
4.2.2 Wind Direction............................................................................................................. 4-3
4.2.3 Wind Speed ................................................................................................................ 4-3
4.2.4 Temperature ............................................................................................................... 4-3
4.2.5 Relative Humidity ........................................................................................................ 4-3
4.2.6 Barometric Pressure ..................................................................................................... 4-4
4.2.7 Precipitation ................................................................................................................ 4-4
CONCLUSION 5-1
APPENDIX A. AUDIT EQUIPMENT CERTIFICATIONS A
APPENDIX B. PERFORMANCE AUDIT FIELD DATA SHEETS – COPPERTON C3 B
APPENDIX C. PERFORMANCE AUDIT FIELD DATA SHEETS – HI-COUNTRY C

List of Tables
Table 2-1 Trinity Performance Audit Equipment .................................................................................... 2-1
Table 3-1 Instrumentation at Rio Tinto Kennecott’s Copperton C3 and Hi-Country PM10 Monitoring Stations 3-
2
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants ii
Table 3-2 Performance Audit Methods and Acceptable Tolerances ......................................................... 3-4
Table 4-1 Copperton C3 PM10 Hi-Volume Sampler Flow Audit Results ..................................................... 4-1
Table 4-2 Hi-Country PM10 Hi-Volume Sampler Flow Audit Results .......................................................... 4-3
Table 5-1 Performance Audit Results of Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring
Stations ............................................................................................................................................. 5-1

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants 1-1
INTRODUCTION
Condition II.B.4.a of Rio Tinto Kennecott’s Bingham Canyon Mine (BCM) Approval Order (AO) requires that
two ambient monitoring stations, referred to as Copperton C3 and Hi-Country, be operated to measure
particulate matter with an aerodynamic diameter of less than 10 microns (PM10) until a minimum of
234,000,000 tons per year (TPY) of material moved from the mine has been achieved. The purpose of the
monitoring is to measure PM10 concentrations in the vicinity of the mine and to maintain compliance with the
National Ambient Air Quality Standards (NAAQS) for 24-hour PM10. At each of these stations, meteorological
measurements consisting of wind speed, wind direction, temperature, relative humidity, barometric pressure,
and precipitation are collected on 10-meter towers.

On November 22, 2024, Trinity Consultants (Trinity) conducted a quality assurance performance audit of the
Copperton C3 and Hi-Country PM10 and meteorological monitoring equipment to meet Utah Division of Air
Quality (UDAQ) and US EPA quality assurance requirements. This report summarizes the performance audit
activities conducted on the filter based PM10 samplers and meteorological sensors on this day.

PM10 sampler and meteorological sensor performance audits at the Rio Tinto Kennecott monitoring sites were
conducted in accordance with the following guidelines:

► Quality Assurance Handbook for Air Pollution Measurement Systems, Vol. II: Ambient Air Quality
Monitoring Program, January 2017,
► 40 CFR Part 50, Appendix J,
► EPA’s Ambient Monitoring Guidelines for Prevention of Significant Deterioration (PSD), 1987,
► Quality Assurance Handbook for Air Pollution Measurement Systems, Vol. IV: Meteorological
Measurements, Final, March 2008, and,
► EPA’s Meteorological Monitoring Guidance for Regulatory Modeling Applications, February 2000.

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Trinity Consultants 2-1
PERFORMANCE AUDIT EQUIPMENT
Presented in Table 2-1 are the Trinity audit reference standard instruments which were used to conduct quality
assurance performance audits.
Table 2-1 Trinity Performance Audit Equipment
Parameter Equipment Serial Number
PM10 Flow Tisch Environmental HiVol Orifice 0379
Wind Direction

Brunton Model 5008 Pocket Transit
RM Young Model 18212 Vane Angle Fixture
RM Young Torque Gauge Model 18331
2610505086
NA
NA
Met One Model 040 Direction Template
Waters Torque Gauge Model 366-1M
NA
4689
Wind Speed

RM Young Model 18802 Anemometer Drive
RM Young Torque Disc Model 18310
Waters Torque Gauge Model 366-3M
CA3678
NA
4690
Temperature ReoTemp TM99A 022322030
Barometric Pressure Vaisala Model PTB110 V0920825
Relative Humidity Vaisala HMP45AC F1450005
Precipitation Polylab 100 ml Burette NA
NA = Not Available.

Copies of audit equipment certifications are included in Appendix A.
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Trinity Consultants 3-1
PERFORMANCE AUDIT PROCEDURES
The following sections describe the PM10 sampler and meteorological quality assurance performance
checks conducted by Trinity at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations
on November 22, 2024.
3.1 Copperton C3 and Hi-Country Monitoring Sites
PM10 measurements are collected every three days for 24 hours, midnight to midnight, in accordance
with US EPA’s three-day sampling schedule at the Copperton C3 and Hi-Country monitoring stations.
The Hi-Country monitoring station is operated in the vicinity of one of the top five highest modeled
ground level PM10 concentrations; the Copperton C3 monitoring station is located near the town of
Copperton, Utah. 10-meter meteorological towers are also installed at the Hi-Country and Copperton
stations which collect continuous measurements of wind speed, wind direction, temperature, relative
humidity, barometric pressure, and precipitation.

The latitude/longitude coordinates and elevations of the Copperton and Hi-Country air quality and
meteorological monitoring sites are as follows:

Site Latitude
(decimal degrees)
Longitude
(decimal degrees)
Elevation
(feet)
Copperton C3 40.56265° North -112.10257° West 5,480
Hi-Country 40.50335° North -112.10294° West 6,003

The PM10 and meteorological instrumentation that is installed at the monitoring sites is presented in
Table 3-1.
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Table 3-1 Instrumentation at Rio Tinto Kennecott’s Copperton C3 and Hi-Country PM10
Monitoring Stations
Parameter Equipment
Manufacturer
Model
Number
Serial Number
Copperton
PM10 Tisch Environmental Model TE-6070V A - P7953
PM10 Tisch Environmental Model TE-6070V B – P7958
PM10 Tisch Environmental Model TE-6070V C – P7959
PM10 Tisch Environmental Model TE-6070V D – P7954
PM10 Tisch Environmental Model TE-6070V E – P7955
Wind Speed RM Young 05305-AQ 175179
Wind Direction RM Young 05305-AQ 175179
Temperature E+E Elektronic EE 181 164016000096C7
Relative Humidity E+E Elektronic EE 181 164016000096C7
Barometric Pressure Setra 278 7538091
Precipitation Texas Electronics TR525 92237-0822
Hi-Country
PM10 Tisch Environmental Model TE-6070V A
PM10 Tisch Environmental Model TE-6070V B
PM10 Tisch Environmental Model TE-6070V C
PM10 Tisch Environmental Model TE-6070V D
PM10 Tisch Environmental Model TE-6070V E
PM10 Tisch Environmental Model TE-6070V F
PM10 Tisch Environmental Model TE-6070V G
PM10 Tisch Environmental Model TE-6070V H
Wind Speed Met One 010C NA
Wind Direction Met One 020C NA
Temperature E+E Elektronic EE 181-L 192916000065B5
Relative humidity E+E Elektronic EE 181-L 192916000065B5
Barometric Pressure Vaisala PTB101B Z3120033
Precipitation Texas Electronics TR525 92238-0822
3.2 Performance Audit Methods

This section describes the audit methods used to verify the performance of the PM10 and meteorological
monitoring equipment installed at the Copperton C3 and Hi-Country monitoring stations.
3.2.1 PM10
The sampler is audited using an orifice transfer standard that is traceable to a primary standard. The orifice
transfer standard is referenced to 25°C and 760 mmHg. The audit device, whether it be one that uses multi-
hole adapter plates or an adjustable flow restrictor, is connected to a differential pressure gauge or tube
manometer. Flow rates are calculated using the certification equation for the transfer standard.
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3.2.2 Wind Direction
The orientation of the wind direction sensor at the tower was checked using a professional magnetic compass.
The compass was set using a magnetic declination of 11.0 degrees east of north. In addition, the wind
direction sensor linearity was verified by checking the sensor output at 30-degree increments throughout the
entire 0 to 360-degree range in both clockwise and counterclockwise directions. The sensor starting threshold
was determined by measuring shaft rotational torque using a torque gauge.
3.2.3 Horizontal Wind Speed
The calibration of the wind speed sensor at the tower was verified by applying known revolutions per minute
using a variable speed motor drive. The shaft of the synchronous motor was attached to the bearing shaft of
the anemometer with the prop removed. Synchronous motor speeds were translated into calculated wind
speeds in meters per second using manufacturer's specifications. The sensor response was compared to the
calculated wind speeds. Wind speed sensor shaft rotational torque was measured with a torque gauge to
evaluate the starting threshold.
3.2.4 Temperature
The temperature sensor calibration was verified by direct comparison of sensor outputs to a collocated
calibrated reference standard thermometer at three different temperatures over the measurement range.
3.2.5 Relative Humidity
The relative humidity sensor was audited by comparison of station sensor outputs with a relative humidity
reference sensor collocated at ambient conditions.
3.2.6 Barometric Pressure
The barometric pressure sensor output was verified by comparing the output of a certified reference
barometer with sensor outputs recorded on the data acquisition system.
3.2.7 Precipitation
Precipitation sensor output was audited using a standard burette to add water to the gauge to simulate
rainfall. The volume of water required to produce 10 tips was recorded during three runs making sure that
both sides of the tip bucket were similar. The volume was divided by the area of the gauge opening to
determine the calculated amount of simulated rainfall. This amount was compared with the amount of
precipitation recorded by the station data logger.

A summary of the audit methods and the acceptable tolerance for each method is presented in Table 3-2.
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Table 3-2 Performance Audit Methods and Acceptable Tolerances
Parameter Audit Method Acceptable Tolerances
PM10 Sampler Flow Multi-hole Adapter Plates or
Adjustable Flow Restrictor
<±7.1% of transfer
standard
<±10.1% from design
Wind Direction Orientation plus Linearity
Starting Threshold
±5°
<0.5 m/s
Horizontal Wind Speed Synchronous Motor
Starting Threshold
±.20 m/s
<0.5 m/s
Temperature Collocated Reference
Thermometer Comparison
±0.5°C

Barometric Pressure Collocated Reference Comparison ±3mb
Relative Humidity Collocated Reference Comparison ±7%RH
Precipitation Calibrated Volumetric Addition ±10%

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Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants 4-1
PERFORMANCE AUDIT RESULTS
The following sections present the November 22, 2024 performance audit results for the PM10 samplers and
the meteorological sensors located at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations.
4.1 Copperton C3 Monitoring Station
The performance audit results for the Copperton monitoring station are summarized below. Copies of the PM10
and meteorological performance audit field data sheets are included in Appendix B.
4.1.1 PM10
On November 22, 2024, the Copperton C3 site volumetric flow controlled high-volume PM10 samplers were
audited using a certified high-volume calibration orifice with a filter mounted in the sampler. The audit flowrate
percent differences using the Qa or actual flowrate method are presented in Table 4-1.
Table 4-1 Copperton C3 PM10 Hi-Volume Sampler Flow Audit Results
Sampler ID Reference
Standard
(m3/min)
Sampler
Flow
(m3/min)
% Difference
(Transfer
Standard)
% Difference
(Design)
A 1.104 1.096 -0.7 -1.1
B 1.109 1.098 -1.0 -0.7
C 1.101 1.097 -0.3 -1.3
D 1.114 1.111 -0.3 -0.1
E 1.101 1.100 -0.1 -1.7

As seen from Table 4-1, all samplers were within the allowable tolerance of <±7.1% of the transfer standard
and within <±10% of the design flow rate and were operating within the allowable average 1.13 m3/minute
flow range.
4.1.2 Wind Direction
Trinity verified the 10-meter cross-arm alignment at 0 degrees using a certified compass and magnetic
declination. The vane was positioned parallel to the crossarm at 0- and 180-degrees and the system observed
0.1 and 178.5 degrees, respectively.

Sensor linearity was checked at 30-degree increments in both clockwise and counterclockwise directions and
found to be within ±3.0° tolerance. The maximum linearity was 2.4 degrees. Orientation in all directions plus
linearity were within the allowable tolerance of ±5°.

Sensor shaft rotational torque was 10.0 gram-centimeters (gm-cm) clockwise and counterclockwise, which
translates to a starting threshold of <0.50 meters per second (m/s). The starting threshold was within the
allowable tolerance of <0.5 m/s.

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4.1.3 Wind Speed
The 10-meter wind speed sensor responses were checked over the range of 0-41 m/s and were identical to
the audit inputs. The allowable tolerances for wind speed are ±0.20 m/s. Shaft rotational torque was <0.20
gm-cm counterclockwise translating to a starting threshold <0.5 m/s which is within the allowable tolerance
of <0.5 m/s.
4.1.4 Temperature
A reference standard digital thermometer was collocated with the tower sensors in water baths and/or at
ambient conditions for intercomparison. Temperature sensor outputs were within a maximum of ±0.2°C of
the reference standard which is within the acceptable tolerance of ±0.5°C.
4.1.5 Relative Humidity
The relative humidity portion of the temperature/relative humidity sensor was checked with a reference sensor
during ambient collocation and showed a maximum percent difference from the reference of 2.0 percent (%).
This is within the allowable tolerance of ±7% relative humidity.
4.1.6 Barometric Pressure
A certified reference barometer was collocated with the site barometric pressure sensor. Sensor output was
within a maximum of -0.2 millibars of the reference which is within the acceptable tolerance of ±3.0 millibars.
4.1.7 Precipitation
Three runs of 10 tips indicated that the rain gauge required an average of 1.2 percent more water to produce
30 tips on the data acquisition system than the calculated calibration. This is within the allowable ±10 percent
tolerance.
4.2 Hi-Country Monitoring Station
The performance audit results for the Hi-Country monitoring station are summarized below. Copies of the
PM10 and meteorological performance audit field data sheets are included in Appendix C.
4.2.1 PM10
On November 22, 2024, the Hi-Country site volumetric flow controlled high-volume PM10 samplers were
audited using a certified high-volume calibration orifice with a filter mounted in the sampler. The audit flowrate
percent differences using the Qa or actual flowrate method are presented in Table 4-2.
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Table 4-2 Hi-Country PM10 Hi-Volume Sampler Flow Audit Results
Sampler
ID
Reference
Standard
(m3/min)
Sampler
Flow
(m3/min)
% Difference
(Transfer
Standard)
% Difference
(Design)
A 1.132 1.112 -1.8 1.4
B 1.112 1.104 -0.7 -0.6
C 1.109 1.108 -0.1 -0.8
D 1.109 1.112 0.3 -0.8
E 1.101 1.117 1.4 -1.4
F 1.114 1.097 -1.6 -0.2
G 1.119 1.113 -0.6 0.2
H 1.106 1.109 0.2 -0.9

As seen from Table 4-2, all samplers were within the allowable tolerance of <±7.1% of the transfer standard
and within <±10% of the design flow rate and were operating within the allowable average 1.13 m3/min flow
range.
4.2.2 Wind Direction
Trinity verified the 10-meter cross-arm alignment at 0 degrees using a certified compass and magnetic
declination. The vane was positioned parallel to the crossarm at 0- and 180-degrees and the system observed
0.0 and 181.0 degrees, respectively.

Sensor linearity was checked at 30-degree increments in both clockwise and counterclockwise directions and
found to be within ±3.0° tolerance. The maximum linearity was 2.8 degrees. Orientation in all directions plus
linearity were within the allowable tolerance of ±5°.

Sensor shaft rotational torque was 6.0 gm-cm clockwise and counterclockwise, which translates to a starting
threshold of <0.50 m/s. The starting threshold was within the allowable tolerance of <0.5 m/s.
4.2.3 Wind Speed
The 10-meter wind speed sensor responses were checked over the range of 0-49 m/s and were identical to
the audit inputs. The allowable tolerances for wind speed are ±0.20 m/s. Shaft rotational torque was <0.20
gm-cm counterclockwise translating to a starting threshold <0.5 m/s which is within the allowable tolerance
of <0.5 m/s.
4.2.4 Temperature
A reference standard digital thermometer was collocated with the tower sensors in water baths and at ambient
conditions for intercomparison. Temperature sensor outputs were within 0.2°C of the reference standard
which is within the acceptable tolerance of ±0.5°C.
4.2.5 Relative Humidity
The relative humidity portion of the temperature/relative humidity sensor was checked with a reference sensor
during ambient collocation and showed a maximum percent difference from the reference of 3.0%. This is
within the allowable tolerance of ±7% relative humidity.
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4.2.6 Barometric Pressure
A certified reference barometer was collocated with the site barometric pressure sensor. Sensor output was
within a maximum of -0.4 millibars of the reference which is within the acceptable tolerance of ±3.0 millibars.
4.2.7 Precipitation
Three runs of 10 tips indicated that the rain gauge required an average of 1.2 percent more water to produce
30 tips on the data acquisition system than the calculated calibration. This is within the allowable ±10 percent
tolerance.

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CONCLUSION
On November 22, 2024, a performance audit was conducted by Trinity on the PM10 samplers and
meteorological sensors at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations. Table 5-1
presents the results of this audit.
Table 5-1 Performance Audit Results of Rio Tinto Kennecott’s Copperton C3 and Hi-Country
Monitoring Stations
Parameter Equipment
Manufacturer
Model
Number
Serial Number Audit
Results
Copperton
PM10 Tisch Environmental Model TE-6070V A - P7953 Pass
PM10 Tisch Environmental Model TE-6070V B – P7958 Pass
PM10 Tisch Environmental Model TE-6070V C – P7959 Pass
PM10 Tisch Environmental Model TE-6070V D – P7954 Pass
PM10 Tisch Environmental Model TE-6070V E – P7955 Pass
Wind Speed RM Young 05305-AQ 175179 Pass
Wind Direction RM Young 05305-AQ 175179 Pass
Temperature E+E Elektronic EE 181-L 164016000096C7 Pass
Relative Humidity E+E Elektronic EE 181-L 164016000096C7 Pass
Barometric Pressure Setra 278 7538091 Pass
Precipitation Texas Electronics TR-525 92237-0822 Pass
Hi-Country
PM10 Tisch Environmental Model TE-6070V A Pass
PM10 Tisch Environmental Model TE-6070V B Pass
PM10 Tisch Environmental Model TE-6070V C Pass
PM10 Tisch Environmental Model TE-6070V D Pass
PM10 Tisch Environmental Model TE-6070V E Pass
PM10 Tisch Environmental Model TE-6070V F Pass
PM10 Tisch Environmental Model TE-6070V G Pass
PM10 Tisch Environmental Model TE-6070V H Pass
Wind Speed Met One 010C NA Pass
Wind Direction Met One 020C NA Pass
Temperature E+E Elektronic EE 181-L 192916000065B5 Pass
Relative humidity E+E Elektronic EE 181-L 192916000065B5 Pass
Barometric Pressure Vaisala PTB101B Z3120033 Pass
Precipitation Texas Electronics TR-525 92238-0822 Pass

As can be seen from Table 5-1, all PM10 samplers and meteorological sensors passed the audit and appeared
to be operating within USEPA and UDAQ requirements for PM10 and meteorological measurements at PSD
monitoring stations.
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APPENDIX A. AUDIT EQUIPMENT CERTIFICATIONS

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Brunton s/n
Model
Date
Location
Declination
Technician(s):
Time
Calculated
Azimuth
Measured
Azimuth
Difference
(Degrees)
15:03 216.4 216.0 0.4
15:16 219.1 219.6 -0.5
15:29 222.3 223.0 -0.7
AVG -0.3
PASS/FAIL PASS Criteria = +/- 1.0 degree
Calculated azimuth angle derived from https://www.suncalc.org
Comments:
Audit
MSI Upper Parking Lot
10.7
Ryan Evans
BRUNTON
CALIBRATION SHEET
2610505086
5006 Metal
1/19/2024
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RELATIVE HUMIDITY SENSOR
CALIBRATION RECORD
Sensor Manufacturer:VAISALA HMP45AC
Sensor ID:F145005
Sensor Range:0 - 100%
01/18/24
01/18/25
Time:12:00
Location:MSI lab
Reference Device:Vaisala HMK 15 Salt Chambers
Reference Device ID:(LiCL) (MgCL2) (NaCL)
Cole Parmer Thermometer S/N 122171278
Technician:Alex L
Comments Lab temperature = 24.3
Adjustment
Reference Reference
Salt Solution Relative Humidity Observed
From To NaCL / LiCL % Sensor Output Difference
16:00 16:30 LiCl 11.3% 11.5% 0.2%
10:00 10:30 MgCl 32.8% 30.6% -2.2%
11:00 11:30 NaCl 75.3% 74.3% -1.0%
Temperature Reference Sensor
Check Temperature Response Difference
separate sheet Water Bath 0.00
Water Bath 0.00
Water Bath 0.00
Procedure:
Remove sensor cap and insert probe into salt chamber.
After 30 min record value.
Record lab temperature and comparison with HMP sensor using reference thermometer.
Calibration Criteria +/- 3.5% RH
Temperature comparison in ambient and water bath medium with reference until stable.
Calibrated on
Next calibration due
Time
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APPENDIX B. PERFORMANCE AUDIT FIELD DATA SHEETS –
COPPERTON C3

Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)832.0
Slope (m)0.91055 Pa(mm Hg)624.1
Intercept (b)-0.0314 Ta (°C)14.0
Correlation 0.99985 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.06 24.200 45.197 578.854 0.928 1.104 0.0651
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.104 1.096 -0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.600 38.474 585.578 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.109 -1.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1172
Comments:
C3 "A"
11/22/24
P7953
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)832.0
Slope (m)0.91055 Pa(mm Hg)624.1
Intercept (b)-0.0314 Ta (°C)14.0
Correlation 0.99985 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.08 24.100 45.010 579.041 0.928 1.109 0.0654
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.109 1.098 -1.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.600 38.474 585.578 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.111 -0.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1220
Comments:
C3 "B"
11/22/24
P7958
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)832.0
Slope (m)0.91055 Pa(mm Hg)624.1
Intercept (b)-0.0314 Ta (°C)14.0
Correlation 0.99985 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.05 24.400 45.571 578.481 0.927 1.101 0.0650
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.101 1.097 -0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.600 38.474 585.578 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.112 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1154
Comments:
C3 "C"
11/22/24
P7959
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)832.0
Slope (m)0.91055 Pa(mm Hg)624.1
Intercept (b)-0.0314 Ta (°C)14.0
Correlation 0.99985 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.10 24.900 46.504 577.547 0.925 1.114 0.0657
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.114 1.111 -0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.000 39.221 584.831 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.125 -0.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1289
Comments:
C3 "D"
11/22/24
P7954
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)832.0
Slope (m)0.91055 Pa(mm Hg)624.1
Intercept (b)-0.0314 Ta (°C)14.0
Correlation 0.99985 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in)(m3/min)
2.05 22.900 42.769 581.282 0.931 1.101 0.0650
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.101 1.100 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.400 38.100 585.951 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.110 -1.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1105
Comments:
C3 "E"
11/22/24
P7955
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:1.5 meters
Sensor s/n:
Sensor Range:mb
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equationsAudited By:
C3
24-30
Trinity
278
7538091
PTB 110
V0920825
13:56
SENSOR RESPONSE
13:20
13:35
Average
Audit Criteria: +/- 3mb
Audit INPUT DIFFERENCE
(mb)(mb) (mb)
-0.2
-0.1
0.0
832.4
832.0
831.8
BAROMETRIC PRESSURE
Adam Lenkowski
600-1100
7/29/2024
6/12/2024Setra
Vaisala
-0.1
832.2
831.9
831.8
831.4
831.6
831.8
832.0
832.2
832.4
832.6 INPUT RESPONSE
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:%
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
RELATIVE HUMIDITY
C3
24-30
Trinity
EE181
164016000096C7
HMP 45AC
6/12/2024E+E Elektronik
F1450005
Audit INPUT SENSOR RESPONSE DIFFERENCE
(%) (%) (%)
13:20 11.0 13.0 2.0
13:35 11.0 13.0 2.0
11.0 12.0 1.0
Audit Criteria: +/- 7% RH
Colocated in aspirated chamber.
Adam LenkowskiAudited By:
0-100
1/18/2024Vaisala
Average 1.7
13:56
10.0
11.0
12.0
13.0
14.0 INPUT RESPONSE
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model:
Sensor Range:°C Sensor Height Serial Number
10 meters 164016000096C7
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
10 METER
RESPONSE DIFFTime (°C) (°C) (°C)
Audit Criteria: +/- 0.5 deg C
COMMENTS
= cell containing equations
13:28
Audit INPUT
Adam LenkowskiAudited By:
AVERAGE
13:50
Water baths and/or ambient conditions
13:42
EE Elektronic 6/12/2024
TEMPERATURE
C3
24-30
Trinity
EE181
-50 to 50 degrees
REOtemp 2/14/2024
TM99A
0.03
022322030
-0.2
0.2
16.216.4
39.7 39.9
0.0 0.1 0.1
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n: Declination:Sensor Range:°Alignment:Vane to Crossarm: Difference:
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Compass:
Audit Device s/n: Torque Device:
INPUT
RESPONSE DIFF TOTAL DIFF RESPONSE DIFF TOTAL DIFF(°) (°) (°) (°) (°) (°) (°)
North 0/360 1.8 1.8 1.8 1.2 1.2 1.2
30 30.4 0.4 0.4 30.8 0.8 0.8
60 59.9 -0.1 -0.1 59.7 -0.3 -0.3
East 90 88.9 -1.1 -1.1 89.0 -1.0 -1.0
120 119.6 -0.4 -0.4 119.3 -0.7 -0.7
150 150.3 0.3 0.3 150.5 0.5 0.5
South 180 181.2 1.2 1.2 181.2 1.2 1.2
210 211.4 1.4 1.4 211.1 1.1 1.1
240 240.8 0.8 0.8 240.1 0.1 0.1
West 270 269.0 -1.0 -1.0 268.8 -1.2 -1.2
300 301.1 1.1 1.1 300.6 0.6 0.6
330 332.4 2.4 2.4 331.5 1.5 1.5
COMMENTS
= cell containing equationsAudited By:
C3
24-30
Trinity
11.5
0.0
Audit Criteria: Alignment with true North plus Linearity: +/- 5 degrees
Starting Threshold: <=0.5m/s
TOTAL DIFF is the total difference when including Orientation and Linearity
<0.5 m/s
0.00.1 / 178.5
Brunton 2610505086
RM Young 18331
TOTAL DIFF is the total difference when including
Orientation and Linearity
WIND DIRECTION 10M
Adam Lenkowski
18212
Vane Angle Fixture
05305-AQ
1751790-360
1/19/2024
6/12/2024RM Young
CLOCKWISE COUNTER-CLOCKWISE
RM Young
< 10 gm-cm
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:m/s
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Torque Device:
Audit Device s/n:
RPM
COMMENTS
= cell containing equations
18802
0.000
WIND SPEED 10M
8/20/2024
6/12/2024RM Young
0.0000
300
C3
24-30
Trinity
600
0.000
0.2 gm-cm
<0.5 mps
1.536
3.072
9.216
0.000
Prop disc #18310
SENSOR RESPONSE DIFFERENCE
(m/s)
0.000
(m/s)
CA03678
05305-AQ
175179
0-60
RM Young
Adam Lenkowski
20.48020.480
Audit Criteria: +/- 0.20 m/s
Audited By:
4000
8000 40.960 40.960 0.000
6000 30.720 30.720 0.000
Audit INPUT
12.800
0.000
9.216
900 4.608 4.608 0.000
(m/s)
0.000
0.0002500 12.800
1800
1.536
3.072
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit
SITE NAME Date 11/22/2024 Start Time 13:15
PROJECT Stop Time 14:05
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:36 inches
Sensor s/n: Recording Resolution
Sensor Range:inches
Funnel Diameter:20.3 cmAUDIT EQUIPMENT Funnel Area (A):324.3 cm2
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
(ml.)
1 cc = 1 ml COMMENTSFunnel (r)adius = funnel (D)iameter ÷ 2
(A)rea of funnel = π*r2
INPUT = Input (ml) ÷ A ÷ cm to inches
= cell containing equations
Audit Criteria: +/- 10% of input
24hr start= 0.0 end= 0.30
Adam LenkowskiCalibrated By:
Average 0.1012 0.10 -1.2%
83.0 0.101 0.10 -0.8%
84.0 0.102 0.10 -1.9%
83.0 0.101 0.10 -0.8%
(inches) (inches) (%)
TR-525 Heated
92237-0822 1 tip = 0.01"
Unlimited
Polylab NA
100 mL burette
NA
Audit INPUT SENSOR RESPONSE DIFFERENCE
Texas Electronics N/A
PRECIPITATION
C3
24-30
Trinity
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological November 2024 Performance Audit
Trinity Consultants C
APPENDIX C. PERFORMANCE AUDIT FIELD DATA SHEETS – HI-
COUNTRY
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.15 24.500 45.757 567.793 0.925 1.132 0.0671
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.132 1.112 -1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg) <---lookup
20.800 38.847 574.703 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.126 1.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1462
Comments:
Hi Country
11/22/24
A
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.07 24.000 44.824 568.727 0.927 1.112 0.0658
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.112 1.104 -0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.600 38.474 575.077 0.937 <----Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.116 -0.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1237
Comments:
Hi Country
11/22/24
B
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Audible Leak Chk (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.06 24.400 45.571 567.980 0.926 1.109 0.0657
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.109 1.108 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 574.890 0.937 <----Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.120 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1211
Comments:
Hi Country
11/22/24
C
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.06 24.10 45.010 568.540 0.927 1.109 0.0657
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.109 1.112 0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.60 38.474 575.077 0.937 <--- Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.124 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1210
Comments:
Hi Country
11/22/24
D
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.03 24.00 44.824 568.727 0.927 1.101 0.0652
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.101 1.117 1.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.40 38.100 575.450 0.938 <--- Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.130 -1.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1138
Comments:
Hi Country
11/22/24
E
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.08 24.20 45.197 568.353 0.926 1.114 0.0660
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.114 1.097 -1.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.60 38.474 575.077 0.937 <---Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.110 -0.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1272
Comments:
Hi Country
11/22/24
F
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.10 24.40 45.571 567.980 0.926 1.119 0.0663
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.119 1.113 -0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.70 38.660 574.890 0.937 <---lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.126 0.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1325
Comments:
Hi Country
11/22/24
G
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.0
Slope (m)0.91055 Pa(mm Hg)613.6
Intercept (b)-0.0314 Ta (°C)12.0
Correlation 0.99985 Ta (°K)285.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)flow rate b [Ta]1/2
(in) LOOKUP (m3/min)
2.05 24.30 45.384 568.167 0.926 1.106 0.0655
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.109 0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.60 38.474 575.077 0.937 <---lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.122 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1194
Comments:
Hi Country
11/22/24
H
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:1.5 meters
Sensor s/n:
Sensor Range:mb
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
BAROMETRIC PRESSURE
Adam Lenkowski
600-1060
7/29/2024
6/12/2024Vaisala
Vaisala
-0.3
818.7
818.8
818.6
Average
Audit Criteria: +/- 3mb
Audit INPUT DIFFERENCE
(mb)(mb) (mb)
-0.3
-0.3
-0.4
819.0
819.1
819.0
Audited By:
Hi Country
24-30
Trinity
PTB101B
Z3120033
PTB 110
V0920825
11:20
SENSOR RESPONSE
10:20
10:50
818.2
818.4
818.6
818.8
819.0
819.2 INPUT RESPONSE
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:%
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
Audit Criteria: +/- 7% RH
Adam LenkowskiAudited By:
0-100
1/18/2024Vaisala
Average 2.3
11:25 11.0 14.0 3.0
10:25 10.0 12.0 2.0
10:50 12.0 14.0 2.0
F1450005
Audit INPUT SENSOR RESPONSE DIFFERENCE
(%) (%) (%)
EE181
192916000065B5
HMP 45AC
6/12/2024E+E Elektronik
RELATIVE HUMIDITY
Hi Country
24-30
Trinity
0.0
5.0
10.0
15.0 INPUT RESPONSE
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model:
Sensor Range:°C Sensor Ht Serial Number
10 192916000065B5
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
10 METER
RESPONSE DIFFTime (°C) (°C) (°C)
Audit Criteria: +/- 0.5 deg C
COMMENTS
= cell containing equations
022322030
0.0
0.2
11.711.7
21.2 21.4
0.240.0
0.0
10:50
Audit INPUT
11:04
EE181
-50 to 50 degrees
REOtemp 2/14/2024
TM99A
EE Elektronic 6/12/2024
TEMPERATURE
Hi Country
24-30
Trinity
Audited By:
AVERAGE
11:15
11:20
0.1
0.10.1
40.2
Adam Lenkowski
Water baths and/or aspirated ambient conditions.
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n: Declination:Sensor Range:°Alignment:Vane to Crossarm: Difference:
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Compass:
Audit Device s/n: Torque Device:
INPUT
RESPONSE DIFF TOTAL DIFF RESPONSE DIFF TOTAL DIFF(°) (°) (°) (°) (°) (°) (°)
North 0/360 0.6 0.6 -0.4 0.4 0.4 -0.6
30 30.5 0.5 -0.5 30.2 0.2 -0.8
60 60.1 0.1 -0.9 60.2 0.2 -0.8
East 90 90.4 0.4 -0.6 90.6 0.6 -0.4
120 120.5 0.5 -0.5 120.5 0.5 -0.5
150 150.3 0.3 -0.7 150.3 0.3 -0.7
South 180 180.5 0.5 -0.5 180.5 0.5 -0.5
210 210.8 0.8 -0.2 210.6 0.6 -0.4
240 241.2 1.2 0.2 241.1 1.1 0.1
West 270 271.7 1.7 0.7 271.6 1.6 0.6
300 301.2 1.2 0.2 302.0 2.0 1.0
330 332.5 2.5 1.5 332.8 2.8 1.8
COMMENTS
= cell containing equations
WIND DIRECTION 10M
Adam Lenkowski
040
Direction Template
020C
n/a0-360
1/19/2024
6/12/2024Met One
CLOCKWISE COUNTER-CLOCKWISE
Met One
<6 gm-cm
Audited By:
Hi Country
24-30
Trinity
11.0
-1.0
Audit Criteria: Alignment with true North plus Linearity: +/- 5 degrees
Starting Threshold: <=0.5m/s
TOTAL DIFF is the total difference when including Orientation and Linearity
<0.5 m/s
359.00.0 / 181.0
Brunton 2610505086
Torque Watch 366-1M 4689
TOTAL DIFF is the total difference when including
Orientation and Linearity
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit SHEET
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:m/s
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Torque Device:
Audit Device s/n:
RPM
COMMENTS
= cell containing equations
32.25
0.00
24.26
600 16.26 16.26 0.00
1800 48.24 48.24 0.00
(m/s)
0.00
Adam Lenkowski
40.2540.25
Audit Criteria: +/- 0.20 m/s
0.00
Audited By:
1200 32.25
900
5.60
8.27
1500
(m/s)
CA3678
010C
n/a
0 - 50
RM Young
< 0.2 gm-cm
<0.5 mps
5.60
8.27
24.26
0.00
Torque Watch 366-3M 4690
SENSOR RESPONSE DIFFERENCE
(m/s)
0.00
18802
0.00
WIND SPEED 10M
8/20/2024
6/12/2024Met One
0.000
200
Hi Country
24-30
Trinity
Audit INPUT
300
0.00
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68
Audit
SITE NAME Date 11/22/2024 Start Time 10:20
PROJECT Stop Time 11:45
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:36 inches
Sensor s/n: Recording Resolution
Sensor Range:inches
Funnel Diameter:20.3 cmAUDIT EQUIPMENT Funnel Area (A):324.3 cm2
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
(ml.)
1 cc = 1 ml COMMENTSFunnel (r)adius = funnel (D)iameter ÷ 2
(A)rea of funnel = π*r2
INPUT = Input (ml) ÷ A ÷ cm to inches
= cell containing equations
Audit Criteria: +/- 10% of input
24hr start= 0.0 end= 0.30
Adam LenkowskiCalibrated By:
Average 0.1012 0.10 -1.2%
83.0 0.101 0.10 -0.8%
84.0 0.102 0.10 -1.9%
83.0 0.101 0.10 -0.8%
(inches) (inches) (%)
TR-525 Heated
92238-0822 1 tip = 0.01"
Unlimited
Polylab NA
100 mL burette
NA
Audit INPUT SENSOR RESPONSE DIFFERENCE
Texas Electronics N/A
PRECIPITATION
Hi Country
24-30
Trinity
Docusign Envelope ID: 3A7C1A86-9450-4B77-8C01-53C958FC7F68