DAQ-2024-011555

Rio Tinto Kennecott Utah Copper,LLC
4700 Daybreak Parkway
South Jordan, Utah 84009
Tel: [phone]
Mr. Bryce Bird - Director
Department of Environmental Quality
Division of Air Quality
P.O Box 144820
Salt Lake City, Utah 84114-4820
Attn: Mr. Conner Kijowski
RE: Kennecott Utah Copper, Bingham Canyon Mine
DAQE-AN105710047-21
Quarterly Ambient Data Report – 3rd 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 second 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
Date
12 November 2024
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SUMMARY OF PM10 AND
METEOROLOGICAL DATA FROM
RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
THIRD QUARTER 2024

Rio Tinto Kennecott

Prepared By:

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

November 2024

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 THIRD QUARTER 2024 A
APPENDIX B: HOURLY TEMPERATURE DATA FOR THIRD QUARTER 2024 B
APPENDIX C: EQUIPMENT CALIBRATIONS FOR THIRD QUARTER 2024 D
APPENDIX D: PM10 MONTHLY FLOW CHECKS FOR THIRD QUARTER 2024 E
APPENDIX E: PERFORMANCE AUDIT REPORT THIRD 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 July 2024 – Copperton C3 2-3
Figure 2.2 Wind Rose for August 2024 – Copperton C3 2-4
Figure 2.3 Wind Rose for September 2024 – Copperton C3 2-4
Figure 2.4 Wind Rose for Third Quarter (July - September) 2024 – Copperton C3 2-5
Figure 2.5 Wind Rose for July 2024 – Hi-Country 2-8
Figure 2.6 Wind Rose for August 2024 - Hi-Country 2-8
Figure 2.7 Wind Rose for September 2024 – Hi-Country 2-9
Figure 2.8 Wind Rose for Third Quarter (July - September) 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
Third 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 Third Quarter 2024 – Copperton C3 2-5
Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per Cubic Meter Third
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 Third Quarter 2024 – Hi- Country 2-10
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Third Quarter 2024 2-10
Table 2-8 Data Recovery in Percent for PM10 for Third Quarter 2024 2-10
Table 3-1 Third Quarter PM10 Monthly Flow Check Results 3-2
Table 3-2 Arithmetic and Geometric Means – Third Quarter 2024 3-3
Table 3-3 Third Quarter 2024 Bias Statistics for PM10 Samplers 3-4
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1.0 INTRODUCTION
This third 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 July 1 through September
30, 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 third 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 third quarter of 2024 for the Copperton monitoring site. Table 2-2 presents the
high and second-high 24-hour PM10 concentrations for the third quarter at Copperton C3.
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Table 2-1 PM10 Concentration Results for Copperton C3 Monitoring Station in Micrograms per
Cubic Meter Third Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
07/02/2024 30.4 1343.52
07/05/2024 28.8 1349.28
07/08/2024 20.7 1327.68
07/11/2024 52.8 1337.76
07/14/2024 48.3 1332.00
07/17/2024 78.3 1326.24
07/20/2024 21.5 1333.44
07/23/2024 38.1 1313.28
07/26/2024 21.4 1353.60
07/29/2024 66.0 1327.68
08/01/2024 42.8 1329.12
08/04/2024 18.9 1333.44
08/07/2024 32.1 1313.28
08/10/2024 29.5 1350.72
08/13/2024 11.1 1359.36
08/16/2024 21.0 1326.24
08/19/2024 7.9 1344.96
08/22/2024 17.5 1324.80
08/25/2024 48.1 1370.88
08/28/2024 34.2 1333.44
08/31/2024 37.1 1340.64
09/03/2024 18.0 1347.84
09/06/2024 29.4 1334.88
09/09/2024 36.9 1355.04
09/12/2024 38.9 1352.16
09/15/2024 25.9 1327.68
09/18/2024 17.1 1366.56
09/21/2024 22.6 1339.20
09/24/2024 34.3 1370.88
09/27/2024 41.0 1342.08
09/30/2024 43.5 1357.92
Table 2-2 High and Second-High 24-Hour PM10 Concentrations – Copperton C3
Number 24-hour Concentration
(μg/m3)
Date of Occurrence
1 78.3 July 17
2 66.0 July 29

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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 third quarter at Copperton C3 were from the west
followed by the east-southeast sector. Reported wind directions represent the directions from which the wind
is blowing.

Wind speed records show there were 0.2 percent calm winds during the third 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 99.8 percent for the third quarter. There were 0.0 percent wind records showing greater
than 10.8 m/s during the third quarter. The sector with the highest average wind speed was the southeast at
5.3 m/s. The maximum wind gust during the quarter was 24.5 m/s, which occurred on September 3 at 16:00.

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 July through September 2024. Figure 2.4 presents the
wind rose for the third quarter 2024. Summary tables of hourly average wind direction and wind speed by
month for the third quarter are presented in Appendix A.
Figure 2.1 Wind Rose for July 2024 – Copperton C3

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

Figure 2.3 Wind Rose for September 2024 – Copperton C3

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

2.1.3 Temperature
Ambient daily mean temperatures during the third quarter ranged from a low of 51.7F in September to a
high of 88.3°F in July. The hourly minimum was 48.4F on September 17 at 09:00 and the hourly maximum
was 97.3°F which occurred on July 11 at 15:00. Third quarter data are summarized in Table 2-3. Hourly
averages of the temperature data by month for the third quarter are presented in Appendix B.
Table 2-3 Summary of Temperature in Degrees Fahrenheit (°F) for Third Quarter 2024 –
Copperton C3
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
July 79.1 88.3 67.4 97.3 59.1
August 75.4 85.3 62.1 93.9 53.2
September 69.1 80.1 51.7 87.6 48.4
Third Quarter 2024 74.5 88.3 51.7 97.3 48.4
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 third 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 3 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 third quarter of 2024 for the Hi-Country monitoring site. Table 2-5 presents the high and
second-high 24-hour PM10 concentrations for the third quarter at Hi-Country.

Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per
Cubic Meter Third Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
07/02/2024 19.6 1353.60
07/05/2024 25.5 1350.72
07/08/2024 46.1 1316.16
07/11/2024 30.3 1313.28
07/14/2024 42.0 1320.48
07/17/2024 36.2 1324.80
07/20/2024 35.3 1313.28
07/23/2024 32.5 1314.72
07/26/2024 9.5 1340.64
07/29/2024 13.0 1326.24
08/01/2024 40.9 1311.84
08/04/2024 13.2 1327.68
08/07/2024 28.5 1317.60
08/10/2024 19.0 1326.24
08/13/2024 9.9 1329.12
08/16/2024 10.9 1316.16
08/19/2024 5.6 1342.08
08/22/2024 11.1 1337.76
08/25/2024 29.9 1336.32
08/28/2024 20.1 1336.32
08/31/2024 21.1 1334.88
09/03/2024 11.9 1337.76
09/06/2024 16.3 1329.12
09/09/2024 18.8 1323.36
09/12/2024 40.2 1356.48
09/15/2024 16.8 1333.44
09/18/2024 6.5 1344.96
09/21/2024 24.3 1347.84
09/24/2024 23.6 1347.84
09/27/2024 28.4 1336.32
09/30/2024 42.8 1344.96
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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 46.1 July 8
2 42.8 September 30

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 third quarter at the Hi-Country monitoring site were
from the southwest. The second most frequent winds were from the south 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 third 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 98.5 percent. 1.5 percent of the winds were greater than 10.8 m/s (24.2 mph) during the third quarter.
The sector with the highest average wind speed was south at 7.0 m/s. The maximum wind gust during the
quarter was 30.8 m/s which occurred on August 24 at :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 July through September 2024 at the Hi-Country monitoring site.
Figure 2.8 presents the wind rose for the third quarter of 2024. Summary tables of hourly average wind
direction and wind speed by month for the third quarter are presented in Appendix A.
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Figure 2.5 Wind Rose for July 2024 – Hi-Country

Figure 2.6 Wind Rose for August 2024 - Hi-Country

4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
July 2024
10-m Level
10%
20%
30%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
August 2024
10-m Level
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Figure 2.7 Wind Rose for September 2024 – Hi-Country

Figure 2.8 Wind Rose for Third Quarter (July - September) 2024 – Hi-Country

5%
10%
15%
20%
25%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
September 2024
10-m Level
4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott HiCountry
Quarter 3 2024
10-m Level
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2.2.3 Temperature
Ambient daily mean temperatures during the third quarter ranged from a low of 50.1F in September to a
high of 87.9°F in July. The hourly minimum was 46.2F which occurred on September 17 at 09:00. The hourly
maximum was 94.6°F which occurred on July 11 at 15:00. The third quarter data are summarized in Table 2-
6. Hourly averages of the temperature data by month for the third quarter are presented in Appendix B.
Table 2-6 Summary of Temperature in Degrees Fahrenheit (°F) for Third Quarter 2024 – Hi-
Country
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
July 77.9 87.9 65.9 94.6 58.8
August 73.9 84.6 60.7 91.2 53.5
September 68.1 77.8 50.1 85.2 46.2
Third Quarter 2024 73.3 87.9 50.1 94.6 46.2
2.3 Data Recovery
Data recoveries in percent possible for the third quarter are provided in Tables 2-7 and 2-8.
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Third Quarter 2024
Month

July
(%)

Aug.
(%)

Sept.
(%)
3rd Qtr.
2024
(%)

July
(%)

Aug.
(%)

Sept.
(%)
3rd Qtr.
2024
(%)
Parameter C3 Hi-Country
Wind Speed 100 99.9 100 99.9 100 99.6 100 99.9
Wind Direction 100 99.9 100 99.9 100 99.6 100 99.9
Temperature 100 99.9 100 99.9 100 99.6 100 99.9

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

July
(%)

August
(%)

September
(%)
Third Quarter
2024
(%)
Copperton C3 100 100 100 100
Hi-Country 100 100 100 100
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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 July 3, 2024. The
meteorological sensors at Copperton C3 and Hi-Country were calibrated on August 2, 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 July 3, August 2, and September
13. At Hi-Country, the samplers were calibrated on July 3, August 2, and September 13, 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: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

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

% Difference
(Design)
Copperton
July
A 1.089 1.106 1.6 -2.2
B 1.089 1.109 1.9 -2.4
C 1.095 1.111 1.4 -1.7
D 1.100 1.123 2.2 -1.3
E 1.075 1.110 3.2 -3.7
August
A 1.101 1.122 1.9 -1.2
B 1.097 1.124 2.5 -1.6
C 1.105 1.125 1.8 -0.9
D 1.120 1.138 1.7 0.4
E 1.061 1.129 6.4 -5.3
September
A 1.094 1.096 0.2 -1.8
B 1.094 1.098 0.4 -1.8
C 1.098 1.098 0.0 -1.5
D 1.113 1.112 -0.1 0.0
E 1.084 1.097 1.3 -2.8
Hi-Country
July
A 1.111 1.124 1.2 -0.4
B 1.106 1.115 0.8 -0.9
C 1.103 1.117 1.3 -1.1
D 1.092 1.122 2.8 -2.2
E 1.079 1.123 4.0 -3.1
F 1.095 1.096 0.1 -1.7
G 1.095 1.125 2.8 -2.0
H 1.098 1.123 2.3 -1.9
August
A 1.099 1.141 3.9 -1.8
B 1.103 1.132 2.7 -1.4
C 1.109 1.134 2.3 -0.7
D 1.099 1.139 3.7 -1.8
E 1.084 1.145 5.6 -3.3
F 1.097 1.125 2.6 -1.9
G 1.101 1.140 3.6 -1.5
H 1.099 1.137 3.5 -1.8
September
A 1.112 1.112 0.0 -0.3
B 1.096 1.104 0.7 -1.8
C 1.104 1.107 0.3 -1.0
D 1.110 1.111 1.0 -1.3
E 1.072 1.118 4.3 -4.1
F 1.100 1.098 -0.2 -1.2
G 1.098 1.114 1.4 -1.6
H 1.090 1.110 1.8 -2.3
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott / Third 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 – Third Quarter 2024
Station
Arithmetic
Mean
(STD)
Geometric
Mean
(STD)
Copperton 32.4 28.9
Hi-Country 22.9 19.9
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: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott / Third 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 Third Quarter 2024 Bias Statistics for PM10 Samplers
Statistics Copperton Hi-Country
Mean Percent Difference 1.919 2.133
AB 1.919 2.148
AS 1.524 1.504
Bias Estimate 2.67 2.67
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 August
29, 2024; the meteorological sensors at each station were audited on June 12, 2024. A copy of the August
29, 2024 audit report is presented in Appendix E.
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

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

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for July, 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
1 285/04.3 296/03.5 311/03.2 291/04.9 307/04.1 316/03.1 335/03.1 333/02.3 015/01.4 203/01.7 314/03.1 022/03.7 036/03.7
2 276/02.7 300/01.4 303/02.1 322/01.6 324/01.2 275/00.9 287/00.8 040/01.4 046/02.0 348/02.1 267/02.9 312/02.9 090/04.2
3 262/03.6 257/03.9 256/04.5 263/04.7 255/04.1 286/03.3 092/01.1 057/01.5 049/01.9 058/01.5 057/02.7 048/03.1 340/03.7
4 326/02.4 323/03.1 327/02.9 329/03.1 303/01.4 279/02.2 007/01.5 091/01.8 105/02.3 082/01.6 066/02.0 075/02.2 035/02.2
5 261/01.8 257/03.7 256/03.5 271/02.4 269/02.3 264/03.0 268/01.2 104/01.3 096/01.8 100/02.4 103/02.5 101/02.7 068/02.1
6 271/01.7 263/02.5 262/04.6 266/04.3 297/03.4 294/01.9 071/01.2 104/01.2 102/02.5 103/03.2 112/02.7 092/02.5 267/04.2
7 286/01.8 279/03.8 283/05.2 282/06.0 322/02.6 265/01.9 291/02.3 287/03.5 109/02.3 113/02.3 262/04.4 255/05.8 291/04.9
8 257/01.6 297/01.8 305/02.2 270/02.8 271/02.3 282/01.3 320/01.3 070/00.6 105/01.0 110/01.5 098/01.9 086/02.1 068/02.1
9 270/02.4 268/01.6 266/02.7 257/03.0 259/03.1 292/02.0 354/00.9 338/01.2 103/01.8 106/01.8 099/02.3 097/02.7 056/02.2
10 265/03.7 262/03.4 271/03.1 267/04.0 256/01.7 268/01.8 258/00.7 101/00.9 102/02.0 096/02.3 096/02.6 099/02.7 084/02.0
11 257/03.7 278/03.8 285/03.4 300/01.6 263/03.2 261/03.3 309/01.1 098/01.4 103/02.9 091/02.2 102/03.8 098/03.4 095/02.9
12 275/03.7 271/02.9 273/04.0 269/04.8 267/03.8 280/02.7 267/02.6 180/01.1 066/01.5 108/01.9 110/02.3 092/02.7 053/02.3
13 261/04.5 270/02.7 267/02.9 282/02.1 261/01.9 264/02.3 190/02.1 120/02.4 102/02.6 105/02.8 125/04.5 105/04.3 049/02.1
14 292/01.5 296/01.2 274/01.8 292/01.5 285/02.1 268/01.3 154/01.8 139/02.4 130/02.8 122/04.6 094/03.6 146/06.9 124/07.3
15 292/03.7 295/01.5 317/01.6 273/01.5 279/01.7 272/01.9 226/01.1 101/01.1 105/02.0 097/02.2 105/02.1 070/02.5 062/02.4
16 193/01.4 251/01.4 268/02.1 265/02.2 290/01.5 306/01.2 322/01.4 058/01.1 098/01.5 098/02.0 100/02.4 100/02.6 054/01.8
17 242/02.8 264/02.0 262/02.4 254/02.3 265/02.5 234/01.6 020/00.9 103/01.1 097/02.2 095/01.9 109/03.0 114/03.7 115/03.8
18 249/01.7 258/02.4 272/02.5 249/01.4 267/01.9 261/01.3 131/01.4 159/01.4 110/02.8 110/02.3 102/03.0 105/03.8 106/03.2
19 200/01.4 247/02.5 232/02.3 258/01.1 269/01.5 292/01.2 270/01.0 090/01.1 109/02.3 107/02.6 104/02.3 107/02.8 064/02.6
20 285/01.8 263/02.0 262/02.0 272/01.3 281/01.6 275/01.4 324/00.7 107/00.9 106/01.5 089/02.0 035/01.7 073/02.1 039/02.6
21 267/01.8 265/01.9 270/01.3 277/01.7 276/01.6 316/01.1 291/01.1 081/00.7 102/02.4 102/02.1 110/02.1 118/02.1 062/02.2
22 271/04.3 265/02.1 251/02.0 203/01.4 235/02.3 248/02.2 245/01.4 114/03.1 103/03.2 127/03.9 122/03.7 095/03.2 096/02.8
23 265/04.0 259/02.3 254/02.3 259/02.7 256/03.1 275/02.5 303/01.1 123/01.1 120/02.3 074/01.4 084/01.7 091/02.4 108/02.1
24 266/02.6 273/02.1 250/03.0 257/02.8 281/02.5 276/01.8 233/01.5 136/03.2 116/03.4 108/03.5 102/03.3 097/02.9 087/02.6
25 304/01.2 277/02.7 280/07.5 289/05.5 350/02.6 342/01.6 079/01.2 164/02.9 168/01.1 110/02.4 104/03.5 099/01.9 085/02.4
26 169/04.5 134/03.1 155/04.5 147/02.7 216/02.1 212/01.9 174/02.0 134/06.0 128/06.1 118/04.8 116/03.6 123/03.1 137/03.8
27 188/02.8 214/04.4 279/06.9 268/02.2 274/02.0 307/02.4 280/01.4 004/01.9 005/02.3 028/01.6 076/01.7 097/02.1 109/03.0
28 324/01.1 297/01.4 265/01.7 266/01.6 262/02.1 255/01.6 307/01.0 090/00.9 119/04.5 110/03.6 098/03.8 066/01.9 048/03.0
29 213/02.1 355/01.7 349/02.2 298/01.1 289/00.9 280/00.9 148/01.3 127/05.7 124/07.8 126/07.9 118/07.2 120/07.0 144/07.6
30 197/03.4 014/01.8 206/01.4 253/01.7 253/01.2 346/01.6 310/00.8 133/02.3 120/03.9 114/04.1 112/05.0 106/03.8 091/02.5
31 310/03.6 321/01.0 323/01.3 292/01.6 307/01.3 291/01.2 316/01.0 011/00.9 078/01.6 107/01.8 096/01.4 083/02.7 065/02.5
MEAN 263/02.7 277/02.4 274/03.0 271/02.6 277/02.2 280/01.9 292/01.4 099/01.9 100/02.6 101/02.6 099/03.0 094/03.2 075/03.1
MAX 169/04.5 214/04.4 280/07.5 282/06.0 307/04.1 286/03.3 335/03.1 134/06.0 124/07.8 126/07.9 118/07.2 120/07.0 144/07.6
MIN 324/01.1 321/01.0 270/01.3 258/01.1 289/00.9 280/00.9 258/00.7 070/00.6 105/01.0 074/01.4 096/01.4 066/01.9 054/01.8
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for July, 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
1 020/03.6 023/02.3 020/02.2 339/02.1 336/01.2 323/01.4 320/01.2 331/03.2 349/05.0 332/04.7 311/02.9 333/03.0 349/05.0 336/01.2
2 092/03.1 058/02.7 054/02.5 021/02.7 031/02.5 010/01.6 317/01.2 264/02.2 269/02.7 265/04.0 266/03.5 329/02.3 090/04.2 287/00.8
3 305/03.7 301/04.6 305/05.1 360/03.5 358/02.7 357/03.0 343/02.6 314/03.3 310/03.3 315/02.7 323/02.6 329/03.2 305/05.1 092/01.1
4 026/02.7 040/02.8 286/03.5 331/03.3 003/02.9 008/01.9 285/01.5 269/02.1 260/01.6 279/01.9 281/01.2 343/02.3 286/03.5 281/01.2
5 066/02.4 346/02.5 288/05.0 292/04.4 327/03.2 009/02.0 320/02.0 301/02.1 288/02.5 293/00.7 284/00.9 304/02.4 288/05.0 293/00.7
6 264/03.4 269/03.1 295/03.0 304/03.3 309/03.0 326/02.4 315/01.4 298/01.6 266/03.0 266/02.7 262/03.8 286/02.8 262/04.6 104/01.2
7 317/04.7 356/03.9 014/04.3 357/04.3 354/04.0 342/02.9 300/02.1 312/01.9 311/01.6 301/01.8 298/01.8 306/03.3 282/06.0 311/01.6
8 073/02.2 023/02.7 025/03.3 333/03.7 271/05.4 293/03.2 331/02.2 296/01.5 258/02.3 259/03.9 270/04.5 318/02.4 271/05.4 070/00.6
9 027/02.6 026/02.5 001/02.4 018/02.7 018/02.8 343/02.8 327/02.4 314/01.7 286/01.5 270/02.3 266/03.7 333/02.3 266/03.7 354/00.9
10 095/02.3 042/02.1 027/02.6 023/02.5 021/02.4 343/01.8 279/02.1 272/03.5 271/03.0 269/03.1 269/03.9 312/02.5 267/04.0 258/00.7
11 040/02.8 357/03.4 017/03.9 004/03.5 348/02.8 321/01.8 277/02.1 265/04.3 273/04.3 275/04.2 274/04.3 317/03.1 273/04.3 309/01.1
12 335/03.6 014/03.0 018/02.6 003/02.8 345/03.0 321/02.4 293/01.1 288/01.3 266/03.4 265/03.0 259/03.7 305/02.8 269/04.8 293/01.1
13 352/02.9 017/03.5 017/02.8 347/02.7 319/02.2 109/03.9 247/00.8 221/05.0 156/07.4 310/05.2 182/02.6 257/03.2 156/07.4 247/00.8
14 110/04.3 287/02.0 013/02.4 011/01.9 060/01.8 353/01.4 285/01.3 265/02.2 274/01.5 282/09.4 284/07.3 286/03.1 282/09.4 296/01.2
15 035/02.5 043/02.8 052/02.4 311/03.5 345/02.6 326/02.7 292/02.1 329/01.2 256/01.8 278/02.4 329/03.3 333/02.2 292/03.7 226/01.1
16 033/02.6 017/02.8 333/03.4 286/03.7 293/03.7 319/01.6 300/01.2 267/01.9 277/02.1 270/03.1 264/03.6 308/02.2 286/03.7 058/01.1
17 104/02.8 019/01.5 240/01.8 296/01.2 348/02.0 318/01.7 287/04.4 251/03.5 159/02.2 248/02.6 250/02.1 249/02.3 287/04.4 020/00.9
18 117/03.3 145/02.9 199/02.3 218/03.6 270/05.2 281/09.7 236/03.9 211/02.8 025/01.1 277/01.7 278/01.6 211/02.8 281/09.7 025/01.1
19 101/01.5 055/02.0 069/01.8 015/03.0 356/03.8 342/02.9 313/02.2 302/01.9 286/01.8 270/02.0 260/03.3 319/02.1 356/03.8 270/01.0
20 039/02.3 028/02.8 009/02.7 009/02.9 006/02.9 351/02.7 326/02.1 319/01.7 325/02.2 276/02.0 253/01.6 340/02.0 009/02.9 324/00.7
21 057/02.4 038/02.0 011/03.0 004/03.4 352/03.3 329/02.5 328/02.1 324/02.0 286/02.4 274/02.7 272/02.9 333/02.1 004/03.4 081/00.7
22 063/02.6 050/02.7 015/02.7 010/02.9 009/02.8 346/02.4 310/01.7 309/01.5 313/01.8 311/01.7 276/02.2 321/02.5 271/04.3 203/01.4
23 019/02.3 187/01.7 003/01.8 048/02.1 037/02.9 340/02.5 319/01.8 287/01.3 257/03.3 271/03.3 265/02.8 302/02.3 265/04.0 123/01.1
24 055/02.2 062/02.2 041/02.1 360/01.7 353/01.7 320/01.0 283/01.1 280/07.5 277/07.0 206/02.5 309/01.1 300/02.7 280/07.5 320/01.0
25 084/02.7 058/02.2 037/01.9 061/02.1 093/01.4 118/01.4 212/01.0 279/10.6 281/10.7 014/02.7 302/05.6 046/03.3 281/10.7 212/01.0
26 108/04.0 108/04.1 100/03.7 108/02.7 112/02.4 118/02.9 177/02.1 272/01.6 255/02.1 271/02.1 190/02.5 149/03.3 128/06.1 272/01.6
27 113/04.5 162/05.0 199/03.7 222/03.5 253/05.7 308/04.4 333/02.1 283/02.3 272/03.8 122/02.1 311/01.1 274/03.0 279/06.9 311/01.1
28 031/03.1 039/02.5 022/02.5 005/02.6 018/02.3 355/02.7 327/01.7 278/01.9 265/02.8 267/03.0 243/02.0 335/02.3 119/04.5 090/00.9
29 172/04.8 196/05.4 195/03.6 165/03.4 260/02.9 300/02.3 313/02.0 273/01.7 265/02.6 272/01.6 209/02.8 217/03.6 126/07.9 289/00.9
30 051/02.7 359/03.2 007/03.5 359/03.6 360/03.5 001/01.9 315/01.6 305/01.5 325/03.1 328/03.7 320/03.9 357/02.7 112/05.0 310/00.8
31 063/02.4 024/02.1 014/02.7 005/02.7 007/02.3 359/01.5 296/01.3 264/02.5 260/03.2 260/02.4 275/01.8 343/02.0 310/03.6 011/00.9
MEAN 055/03.0 030/02.9 009/02.9 354/03.0 351/02.9 340/02.6 301/01.9 286/02.7 279/03.1 279/02.9 274/02.9 316/02.6
MAX 172/04.8 196/05.4 305/05.1 292/04.4 253/05.7 281/09.7 287/04.4 279/10.6 281/10.7 282/09.4 284/07.3 281/10.7
MIN 101/01.5 019/01.5 069/01.8 296/01.2 336/01.2 320/01.0 247/00.8 329/01.2 025/01.1 293/00.7 284/00.9 070/00.6
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 316/02.6 MAXIMUM WIND SPEED =10.7 AT 281 DEGREES DATE OF OCCURRENCE = 7/25 AT 2200
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for August, 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
1 270/02.2 271/02.2 264/03.0 269/02.7 276/01.9 279/01.6 262/01.7 201/01.1 088/01.0 103/01.9 096/02.1 098/02.3 074/02.1
2 278/02.8 269/03.5 273/03.7 268/04.3 259/03.7 263/02.9 316/01.3 058/01.0 111/01.4 091/01.3 061/01.5 050/01.9 047/02.5
3 271/03.9 264/03.2 267/01.8 048/00.8 289/00.5 263/01.3 222/01.0 127/04.3 128/05.2 122/05.8 123/06.2 133/06.3 135/06.1
4 170/02.5 151/01.9 194/01.7 229/01.2 270/00.8 192/01.3 124/03.4 128/02.2 130/01.9 104/03.2 119/03.2 102/03.8 100/02.9
5 264/03.9 262/02.8 271/01.5 287/01.4 270/02.7 260/02.6 285/01.4 097/01.3 113/02.9 118/04.4 111/05.9 133/04.7 125/02.8
6 253/01.7 254/01.9 320/01.2 287/01.3 273/01.8 250/01.9 184/01.2 130/04.3 122/05.2 123/06.2 126/05.3 129/05.3 121/05.3
7 258/01.0 332/02.5 273/01.7 266/03.3 270/01.9 271/02.1 252/00.8 064/00.7 104/02.4 115/03.4 104/03.0 075/02.6 056/02.5
8 268/02.3 256/01.6 287/01.2 079/00.9 019/01.1 308/01.1 265/00.7 140/01.7 083/01.4 125/03.1 106/02.6 099/02.6 107/03.9
9 149/02.2 130/03.0 150/01.1 225/01.0 218/01.2 290/00.7 187/01.5 137/05.4 125/05.9 128/05.4 120/05.9 111/07.0 110/07.2
10 178/01.6 121/02.0 107/02.0 166/02.6 167/01.3 166/02.2 120/03.8 126/06.3 131/06.2 136/07.5 131/06.9 128/06.0 124/05.5
11 281/05.4 339/02.4 326/01.2 279/00.9 286/01.4 243/01.5 257/01.2 096/01.9 115/03.6 124/05.7 119/05.8 138/05.3 124/05.3
12 127/07.5 223/06.8 149/05.7 146/04.8 124/06.2 136/04.4 115/03.3 152/06.0 126/07.3 136/07.0 126/08.3 125/08.5 124/06.9
13 133/08.1 134/05.4 154/04.1 135/03.3 117/03.9 105/01.7 212/01.2 174/03.1 136/06.0 138/07.5 137/08.8 135/08.4 124/08.3
14 272/02.4 246/01.6 246/01.4 254/02.4 242/02.3 247/02.2 224/01.3 103/02.6 122/05.2 126/06.3 129/05.1 124/04.6 060/03.0
15 270/02.1 282/01.2 259/02.0 207/01.8 162/03.0 136/02.7 116/02.9 124/04.6 115/05.3 132/06.4 130/06.7 154/06.5 135/06.8
16 281/05.1 300/02.7 262/04.2 263/02.4 257/01.7 259/02.6 244/02.1 087/01.0 103/02.7 115/03.8 116/05.8 132/07.1 127/07.9
17 155/05.2 154/04.7 150/04.6 146/03.4 177/02.7 161/03.2 134/04.3 134/05.9 137/06.0 126/07.6 179/07.3 271/08.4 288/02.2
18 266/02.0 251/01.9 206/01.7 118/01.0 067/01.3 132/02.8 144/04.4 136/05.6 136/07.7 138/07.6 142/06.9 145/06.3 145/05.5
19 227/00.9 171/00.9 186/01.8 203/01.2 135/02.3 193/02.5 193/01.2 135/02.9 119/05.4 129/06.5 140/07.0 143/06.9 133/06.9
20 243/00.9 170/00.9 342/01.2 044/02.1 145/03.3 147/04.2 159/04.7 149/04.8 137/06.7 140/06.5 138/06.4 134/07.1 131/06.7
21 232/06.4 189/04.7 166/04.7 166/05.6 160/05.0 162/05.1 162/05.9 153/05.0 138/06.8 131/07.2 175/05.5 207/04.9 213/04.7
22 276/02.3 020/01.1 136/04.3 136/04.9 148/04.7 134/05.1 132/06.7 134/07.0 154/06.4 141/06.4 142/02.9 140/05.8 149/07.6
23 209/04.5 168/04.3 210/03.9 230/03.8 161/03.2 147/03.5 139/05.1 137/05.8 130/06.1 137/07.8 132/09.9 132/09.4 148/05.3
24 223/05.6 222/06.6 209/03.6 205/02.7 177/02.6 185/01.6 209/03.2 198/06.4 148/08.2 154/09.0 143/09.2 152/08.3 174/07.2
25 285/01.1 170/01.7 025/01.5 187/01.5 293/01.4 280/01.0 262/00.9 212/01.6 138/04.2 134/06.4 138/06.7 172/06.4 208/04.8
26 281/00.8 277/00.9 288/01.1 315/01.0 285/01.1 289/01.1 289/00.8 102/01.0 120/01.8 105/01.6 077/01.7 091/02.5 080/01.8
27 259/02.5 262/02.3 253/02.3 263/02.4 258/02.5 270/03.0 275/02.0 102/01.3 117/03.0 106/03.9 109/03.7 126/04.1 114/03.7
28 286/01.7 162/02.3 160/04.3 155/04.2 013/01.4 283/01.2 317/00.9 167/01.5 081/01.8 045/02.0 081/02.0 106/03.1 054/03.0
29 324/02.5 343/01.7 057/01.0 040/00.8 286/01.0 268/00.9 035/01.4 087/00.5 117/01.2 109/01.9 092/02.0 086/02.1 067/02.3
30 271/03.8 276/02.4 265/02.4 265/02.7 273/02.6 265/02.7 266/02.6 225/01.6 103/01.9 105/01.9 094/01.9 103/02.5 095/01.9
31 272/03.7 271/01.9 267/02.6 255/02.7 262/03.2 259/03.8 272/02.4 011/01.1 100/01.6 107/01.9 102/01.8 098/02.2 097/01.8
MEAN 251/03.2 236/02.7 234/02.5 220/02.4 234/02.4 228/02.4 213/02.4 130/03.2 120/04.3 121/05.1 121/05.1 124/05.3 116/04.7
MAX 133/08.1 223/06.8 149/05.7 166/05.6 124/06.2 134/05.1 132/06.7 134/07.0 148/08.2 154/09.0 132/09.9 132/09.4 124/08.3
MIN 281/00.8 170/00.9 057/01.0 048/00.8 289/00.5 290/00.7 265/00.7 087/00.5 088/01.0 091/01.3 061/01.5 050/01.9 080/01.8
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for August, 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
1 053/02.0 046/02.4 032/02.7 358/03.3 359/03.2 328/02.5 328/01.8 275/02.9 270/03.3 264/04.9 267/05.5 311/02.5 267/05.5 088/01.0
2 ---027/03.9 010/02.7 360/02.6 002/02.8 324/02.3 306/01.6 275/01.6 266/03.6 267/04.3 277/03.3 322/02.6 268/04.3 058/01.0
3 189/03.1 103/04.0 034/03.4 260/03.3 210/02.7 179/03.1 245/03.0 251/02.4 286/01.4 254/01.8 236/01.5 213/03.2 133/06.3 289/00.5
4 070/02.0 084/01.8 078/01.3 060/01.9 032/02.9 346/02.0 291/01.4 273/01.9 269/02.5 266/03.1 260/03.6 138/02.3 102/03.8 270/00.8
5 068/02.4 148/03.6 256/01.8 121/01.6 221/01.4 147/03.1 199/01.2 176/01.4 195/04.0 177/03.0 207/02.1 187/02.7 111/05.9 199/01.2
6 116/03.2 017/01.8 034/02.3 042/02.3 012/02.3 336/01.4 274/01.9 269/02.3 265/04.0 248/02.6 230/03.1 247/02.9 123/06.2 320/01.2
7 049/02.7 360/04.4 318/03.8 015/03.5 015/02.7 351/01.7 290/01.4 261/03.2 265/03.6 268/04.7 283/02.7 320/02.6 268/04.7 064/00.7
8 094/02.4 091/02.1 040/02.4 024/02.7 012/02.8 354/01.8 295/01.8 270/03.2 271/04.0 228/02.2 300/02.0 009/02.1 271/04.0 265/00.7
9 156/05.7 229/04.2 156/03.6 228/03.2 002/03.4 324/02.1 283/03.7 293/01.9 231/01.5 226/01.6 160/02.2 179/03.4 110/07.2 290/00.7
10 137/03.7 119/04.6 139/02.2 161/04.9 139/04.9 128/04.8 127/03.0 073/01.2 261/01.4 345/01.3 329/02.2 135/03.7 136/07.5 073/01.2
11 117/05.4 120/05.7 104/02.9 085/02.6 123/03.3 133/02.7 147/03.6 129/05.7 142/05.3 139/06.2 147/07.4 133/03.8 147/07.4 279/00.9
12 150/06.0 211/04.5 293/02.6 219/03.6 230/02.0 153/02.5 197/02.3 134/02.7 126/06.7 145/06.9 137/07.9 152/05.4 125/08.5 230/02.0
13 133/08.2 134/08.8 138/07.2 191/05.4 147/02.4 284/02.1 275/02.7 251/03.3 257/01.7 232/02.1 264/02.6 162/04.9 137/08.8 212/01.2
14 076/02.7 114/03.7 108/01.6 117/02.5 117/01.7 156/01.7 275/01.6 265/02.5 262/02.9 261/03.1 266/03.1 189/02.8 126/06.3 224/01.3
15 115/08.2 139/07.1 149/06.7 148/06.0 184/03.7 190/01.9 220/02.9 230/03.6 226/03.0 159/02.9 236/06.4 170/04.3 115/08.2 282/01.2
16 123/07.1 162/05.5 160/05.4 128/06.6 140/05.5 138/03.4 271/01.3 209/01.7 224/02.0 173/02.9 210/05.3 182/04.0 127/07.9 087/01.0
17 136/02.1 135/02.3 165/03.6 166/03.2 204/03.6 229/04.4 232/04.4 218/02.6 162/03.1 272/05.2 005/02.3 172/04.3 271/08.4 136/02.1
18 150/04.7 141/04.9 164/04.8 158/06.9 148/06.0 164/03.8 162/06.2 156/05.0 235/04.6 230/03.2 326/01.3 159/04.4 136/07.7 118/01.0
19 143/05.1 135/05.7 147/04.8 119/05.2 172/03.7 211/03.1 154/02.7 184/02.2 199/01.6 194/01.5 016/01.1 162/03.5 140/07.0 227/00.9
20 175/03.8 209/05.8 189/04.7 171/04.1 163/04.0 183/02.1 225/03.7 241/02.8 231/03.8 218/04.9 208/04.8 175/04.2 134/07.1 170/00.9
21 309/03.4 031/03.9 015/04.0 007/03.6 004/03.6 330/02.3 305/01.6 272/02.3 270/03.7 264/03.8 256/03.2 212/04.5 131/07.2 305/01.6
22 122/09.3 121/09.4 124/08.7 127/07.6 128/07.1 151/03.9 193/01.6 151/02.9 154/03.4 186/03.7 223/04.6 145/05.3 121/09.4 020/01.1
23 152/06.7 170/08.5 186/07.3 187/05.8 174/05.7 165/04.6 176/02.9 204/04.0 220/06.0 216/05.3 219/07.0 172/05.7 132/09.9 176/02.9
24 178/06.5 178/07.4 213/08.5 225/08.6 242/04.4 342/04.2 344/04.5 337/02.7 321/01.9 311/02.0 291/01.5 210/05.3 143/09.2 291/01.5
25 231/05.5 194/05.6 018/04.4 009/04.0 350/03.4 332/01.5 349/01.5 348/01.7 347/02.1 342/02.5 323/01.6 288/03.0 138/06.7 262/00.9
26 055/02.1 051/02.2 081/01.8 052/01.6 005/02.2 328/02.3 275/01.7 263/01.7 270/02.1 261/02.0 261/02.1 332/01.6 091/02.5 281/00.8
27 112/04.7 109/03.1 113/06.3 112/04.7 067/02.7 323/01.5 270/01.7 261/02.2 259/02.8 273/02.8 300/01.2 214/02.9 113/06.3 300/01.2
28 022/03.0 024/02.8 042/02.5 011/02.1 001/02.0 322/01.6 301/01.5 328/02.5 338/03.7 349/03.8 351/03.1 014/02.4 160/04.3 317/00.9
29 048/02.9 037/02.7 029/02.6 011/02.9 004/02.8 329/03.3 273/02.0 334/01.8 268/03.0 278/02.2 267/02.7 012/02.0 329/03.3 087/00.5
30 102/02.2 089/02.0 062/02.0 062/01.6 028/01.4 311/01.0 261/01.8 268/01.8 263/02.8 267/03.3 264/02.7 271/02.2 271/03.8 311/01.0
31 072/02.1 105/02.3 060/02.0 071/01.7 033/01.5 293/01.1 260/02.1 259/02.7 257/02.7 257/03.5 262/03.5 281/02.3 259/03.8 011/01.1
MEAN 114/04.3 113/04.4 096/03.9 098/03.9 075/03.3 286/02.6 258/02.4 251/02.6 249/03.2 245/03.3 263/03.3 174/03.4
MAX 122/09.3 121/09.4 124/08.7 225/08.6 128/07.1 128/04.8 162/06.2 129/05.7 126/06.7 145/06.9 137/07.9 132/09.9
MIN 070/02.0 084/01.8 078/01.3 052/01.6 221/01.4 311/01.0 199/01.2 073/01.2 286/01.4 345/01.3 016/01.1 087/00.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =743 DATA RECOVERY RATE = 99.9%
MONTHLY MEAN = 174/03.4 MAXIMUM WIND SPEED =09.9 AT 132 DEGREES DATE OF OCCURRENCE = 8/23 AT 1100
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for September, 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
1 252/03.0 261/03.2 248/01.7 278/01.9 266/03.3 263/03.3 271/02.2 144/01.6 105/01.6 104/02.8 101/02.5 102/03.4 102/03.5
2 272/02.7 221/02.2 217/01.3 259/01.7 236/01.7 192/02.0 166/02.5 125/02.6 135/05.6 157/06.5 159/06.6 152/06.4 139/06.7
3 333/02.3 288/01.6 182/02.7 188/05.1 178/03.2 179/02.0 201/01.3 189/00.7 131/03.7 129/04.3 133/06.9 124/07.0 122/05.7
4 240/02.1 309/05.2 257/01.6 258/02.2 252/01.8 252/03.0 287/02.2 225/01.7 126/02.6 117/02.0 090/02.4 058/02.7 041/04.0
5 319/02.4 312/02.5 330/01.7 299/01.7 307/01.8 313/02.6 350/02.0 350/00.6 111/01.6 047/01.1 078/01.6 099/01.7 102/01.9
6 260/02.7 264/03.4 272/03.1 283/02.4 255/01.0 251/01.8 248/01.6 103/01.6 112/02.9 127/03.5 126/05.0 112/04.2 109/03.0
7 255/03.1 259/02.7 255/03.1 259/03.8 264/03.7 271/02.2 265/02.8 176/01.3 108/02.1 116/05.5 121/05.7 124/05.1 127/04.0
8 258/03.1 261/03.1 261/03.4 273/03.0 263/03.2 270/01.6 282/01.0 226/00.8 168/00.9 125/04.4 118/05.4 119/05.7 145/04.6
9 291/01.3 281/01.0 287/01.0 210/01.4 266/00.8 220/01.1 270/01.1 136/01.2 115/04.8 116/05.3 116/04.8 118/04.8 115/04.6
10 272/01.3 241/01.6 208/01.6 249/01.3 258/01.7 236/01.2 274/00.6 140/03.1 133/07.2 120/07.2 125/07.5 135/06.8 136/06.0
11 141/02.8 133/03.7 173/03.5 171/02.9 184/01.9 173/02.0 152/04.4 137/05.3 141/06.5 134/06.8 140/07.2 155/07.4 163/07.3
12 327/02.5 290/02.4 317/02.4 333/02.5 340/03.3 333/02.2 305/02.0 275/05.0 260/02.8 318/01.6 300/03.0 276/04.2 323/02.9
13 349/02.5 312/01.7 287/01.3 263/01.4 264/01.8 259/02.1 259/01.6 137/00.8 101/02.2 097/02.1 084/02.5 069/02.0 094/02.6
14 274/02.2 267/02.6 268/02.4 270/02.4 265/02.0 269/01.3 262/01.1 101/01.4 131/02.9 124/03.8 122/03.8 103/04.7 096/04.1
15 207/03.4 189/02.0 144/03.5 145/02.9 132/02.8 147/02.3 169/02.8 175/04.5 153/06.3 151/07.0 141/07.2 123/07.7 124/07.2
16 189/01.7 135/01.8 336/00.9 293/01.0 174/02.5 211/02.6 223/01.3 178/02.7 146/05.2 155/06.2 149/08.4 148/08.3 158/06.8
17 355/03.1 051/01.4 014/01.8 020/01.3 135/01.4 040/00.7 220/00.9 194/03.0 140/05.3 139/05.5 143/03.5 271/04.1 266/01.9
18 266/02.2 267/02.2 260/02.5 259/02.2 266/02.4 284/02.2 288/01.6 027/00.9 121/01.4 114/02.8 104/02.7 097/02.8 097/01.9
19 279/02.3 274/01.9 277/01.6 270/02.0 269/02.2 270/01.8 252/02.0 119/00.6 111/01.5 128/01.5 103/01.4 078/01.7 071/01.8
20 264/02.6 277/03.1 274/02.9 281/01.3 285/01.4 279/01.4 266/02.5 267/00.8 103/01.3 079/01.8 072/01.6 058/01.8 047/02.3
21 271/01.0 330/01.3 310/02.7 345/01.8 300/01.6 289/02.0 265/01.6 044/01.4 115/01.7 104/01.6 092/01.7 058/02.5 030/03.5
22 245/01.2 283/01.1 273/01.7 288/01.4 273/01.6 269/02.5 273/01.5 130/00.3 094/01.0 140/01.3 106/01.7 070/01.9 079/02.1
23 272/04.3 268/03.2 253/02.0 250/01.8 272/01.6 269/02.6 262/03.2 044/00.8 090/01.3 100/01.6 107/02.2 103/02.4 088/02.0
24 268/01.2 255/01.2 276/01.5 261/01.4 252/00.7 257/01.0 261/01.5 287/00.7 098/01.3 110/02.1 106/02.3 113/02.1 092/02.0
25 276/03.0 309/01.2 278/01.7 286/01.1 270/01.6 271/01.5 277/01.9 049/00.8 117/03.7 126/07.3 127/06.9 134/06.3 144/06.2
26 221/03.5 254/01.2 355/00.9 248/01.9 209/02.1 171/03.0 228/02.8 240/03.2 237/03.5 053/02.2 101/02.5 242/03.4 299/03.4
27 267/03.2 272/03.1 273/02.5 268/02.9 264/03.6 262/03.6 254/02.7 249/01.8 113/01.7 115/01.8 117/01.9 102/02.0 099/02.1
28 258/02.3 258/03.7 266/04.2 266/02.8 279/02.0 267/02.5 262/02.6 168/01.3 115/01.6 118/02.8 099/02.8 116/04.8 113/04.5
29 199/01.7 230/05.2 221/04.0 182/03.1 194/03.6 194/02.4 262/02.9 166/03.1 220/04.5 164/04.9 155/06.2 147/06.3 133/07.1
30 171/02.6 306/01.1 324/01.7 347/02.2 356/02.4 354/02.2 318/01.1 100/01.0 111/02.2 061/01.8 036/02.6 028/02.8 023/02.9
MEAN 264/02.4 271/02.4 271/02.2 267/02.2 256/02.2 254/02.1 258/02.0 155/01.8 126/03.0 116/03.6 113/04.0 109/04.2 103/03.9
MAX 272/04.3 230/05.2 266/04.2 188/05.1 264/03.7 262/03.6 152/04.4 137/05.3 133/07.2 126/07.3 149/08.4 148/08.3 163/07.3
MIN 271/01.0 281/01.0 336/00.9 293/01.0 252/00.7 040/00.7 274/00.6 130/00.3 168/00.9 047/01.1 103/01.4 099/01.7 071/01.8
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for September, 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
1 097/03.1 103/03.1 106/02.1 046/01.4 351/01.6 314/01.5 278/01.8 262/02.0 263/02.9 265/02.2 260/02.7 248/02.4 102/03.5 046/01.4
2 147/04.2 127/05.9 103/04.0 337/02.0 276/01.4 192/02.5 224/02.5 194/03.9 191/01.7 219/01.6 330/01.8 189/03.3 139/06.7 217/01.3
3 113/02.9 192/01.8 172/06.8 238/01.8 174/01.8 257/06.1 249/03.5 184/03.9 137/04.8 149/04.2 197/01.2 177/03.5 124/07.0 189/00.7
4 045/03.4 061/03.4 292/04.1 283/04.5 308/03.4 312/03.3 300/02.9 304/02.6 299/02.6 313/02.2 322/02.3 300/02.8 309/05.2 257/01.6
5 114/02.5 163/02.2 064/01.7 025/01.7 012/02.1 322/01.3 296/01.4 278/01.6 279/02.0 279/02.8 273/02.5 343/01.9 279/02.8 350/00.6
6 112/03.6 096/02.5 125/02.0 098/01.8 010/01.8 318/01.2 287/01.4 277/01.6 267/02.0 265/02.7 262/03.8 228/02.5 126/05.0 255/01.0
7 119/03.8 101/03.6 060/01.6 351/01.1 096/02.2 325/01.3 277/01.9 272/01.6 266/02.5 262/04.2 254/02.9 233/03.0 121/05.7 351/01.1
8 120/03.9 258/03.0 334/02.4 008/02.8 351/02.3 286/05.5 286/04.6 179/02.0 282/01.0 265/01.5 273/01.8 256/02.9 119/05.7 226/00.8
9 069/03.8 275/03.1 126/02.9 147/02.6 161/02.0 224/02.0 190/04.5 139/05.5 150/04.2 133/04.9 115/02.1 165/02.9 139/05.5 266/00.8
10 127/05.5 117/06.0 156/05.7 163/03.6 157/02.6 236/02.0 264/06.1 282/03.8 191/03.2 195/02.0 129/01.8 186/03.7 125/07.5 274/00.6
11 200/06.0 156/07.0 162/06.0 206/05.7 216/05.0 212/04.5 215/08.1 216/09.1 224/07.8 280/09.0 284/08.9 178/05.8 216/09.1 184/01.9
12 045/03.4 068/02.6 045/03.0 311/04.7 001/03.6 337/02.7 336/02.2 292/01.5 267/02.2 308/01.4 290/00.7 319/02.7 275/05.0 290/00.7
13 084/02.2 080/01.9 035/02.2 022/02.3 329/01.3 302/01.0 262/01.9 260/02.0 267/02.0 267/02.1 268/02.2 315/01.9 094/02.6 137/00.8
14 121/04.0 099/03.1 109/06.3 088/04.1 015/02.0 315/01.7 274/01.6 267/02.2 256/02.3 244/02.4 225/02.5 222/02.8 109/06.3 262/01.1
15 122/08.3 152/06.1 162/05.2 129/04.0 315/00.7 302/01.0 162/02.2 255/01.2 231/03.2 246/03.2 225/02.8 168/04.1 122/08.3 315/00.7
16 192/06.3 146/07.0 113/05.0 027/01.2 315/01.6 259/01.2 175/02.3 161/01.5 271/01.2 143/01.8 085/02.4 172/03.4 149/08.4 336/00.9
17 053/02.1 297/03.1 033/02.0 257/00.4 016/00.7 073/00.8 270/01.0 256/01.0 260/02.0 274/02.1 279/01.5 311/02.1 139/05.5 257/00.4
18 123/02.3 112/01.8 018/02.3 017/02.3 356/03.4 347/03.3 335/02.1 271/01.1 273/01.6 269/01.9 274/02.2 311/02.2 356/03.4 027/00.9
19 052/01.6 038/02.5 037/02.6 020/02.4 360/02.2 350/02.1 329/01.8 300/01.3 273/02.5 260/03.6 266/03.2 325/02.0 260/03.6 119/00.6
20 029/03.6 023/03.9 025/03.4 013/02.8 339/02.7 331/02.3 297/01.7 266/01.8 269/03.9 264/03.1 288/01.7 317/02.3 269/03.9 267/00.8
21 029/03.9 020/03.9 010/03.1 341/03.6 322/02.2 302/01.8 285/02.0 281/02.7 345/01.2 282/02.1 321/00.6 337/02.1 029/03.9 321/00.6
22 073/02.0 066/02.2 028/02.3 015/02.7 360/02.6 338/01.5 320/01.4 285/01.8 266/02.3 270/02.8 271/02.8 319/01.8 271/02.8 130/00.3
23 064/02.5 058/02.3 071/02.0 128/01.8 189/02.3 334/00.9 305/01.3 286/01.8 292/01.5 307/01.4 274/01.3 302/02.0 272/04.3 044/00.8
24 067/02.0 061/02.0 033/01.8 054/01.8 009/01.4 288/01.3 262/02.8 261/02.3 268/02.6 274/02.7 277/02.9 285/01.8 277/02.9 252/00.7
25 136/06.9 120/07.0 113/07.5 125/06.4 175/02.5 222/02.3 233/03.2 199/02.9 175/02.6 225/03.1 235/04.2 193/03.8 113/07.5 049/00.8
26 027/03.2 022/03.3 012/03.1 354/03.7 319/02.6 305/01.7 277/01.6 272/02.9 269/04.4 268/03.7 268/04.1 278/02.8 269/04.4 355/00.9
27 061/01.4 053/02.2 026/02.4 020/02.1 344/01.9 299/01.4 278/02.1 266/02.4 273/03.9 272/03.5 259/03.7 285/02.5 273/03.9 061/01.4
28 128/05.7 108/06.1 097/04.3 123/04.9 185/02.1 253/01.7 265/01.6 243/03.1 236/03.6 230/02.7 172/02.2 198/03.2 108/06.1 168/01.3
29 133/06.3 154/04.4 247/03.9 219/03.3 306/01.4 212/04.5 230/04.3 216/04.4 255/04.7 281/05.9 275/04.8 207/04.3 133/07.1 306/01.4
30 029/02.8 032/02.7 031/02.6 019/02.4 343/01.1 338/00.5 297/01.6 286/01.1 307/01.4 283/01.4 284/01.7 354/01.9 023/02.9 338/00.5
MEAN 093/03.8 092/03.7 068/03.5 031/02.9 338/02.1 297/02.2 272/02.6 255/02.5 258/02.8 260/02.9 265/02.6 243/02.8
MAX 122/08.3 156/07.0 113/07.5 125/06.4 216/05.0 257/06.1 215/08.1 216/09.1 224/07.8 280/09.0 284/08.9 216/09.1
MIN 061/01.4 192/01.8 060/01.6 257/00.4 016/00.7 338/00.5 270/01.0 256/01.0 282/01.0 308/01.4 321/00.6 130/00.3
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 243/02.8 MAXIMUM WIND SPEED =09.1 AT 216 DEGREES DATE OF OCCURRENCE = 9/11 AT 2100
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
Joint Frequency Distribution for July, 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 3.9 1.9 0.0 0.0 0.0 6.3 2.7
NNE 11.25 - 33.75 0.7 4.2 0.9 0.0 0.0 0.0 5.8 2.5
NE 33.75 - 56.25 0.1 3.9 0.1 0.0 0.0 0.0 4.2 2.4
ENE 56.25 - 78.75 0.9 3.4 0.0 0.0 0.0 0.0 4.3 2.0
E 78.75 - 101.25 1.3 5.1 0.8 0.0 0.0 0.0 7.3 2.3
ESE 101.25 - 123.75 1.3 5.4 3.9 0.3 0.0 0.0 10.9 2.9
SE 123.75 - 146.25 0.1 0.7 0.5 1.1 0.0 0.0 2.4 4.8
SSE 146.25 - 168.75 0.4 0.5 0.5 0.1 0.0 0.0 1.6 3.2
S 168.75 - 191.25 0.1 0.9 0.1 0.0 0.0 0.0 1.2 2.4
SSW 191.25 - 213.75 0.7 0.9 0.4 0.1 0.0 0.0 2.2 2.4
SW 213.75 - 236.25 0.3 0.5 0.7 0.0 0.0 0.0 1.5 2.8
WSW 236.25 - 258.75 0.9 3.1 1.5 0.3 0.0 0.0 5.8 2.6
W 258.75 - 281.25 1.7 12.4 5.6 0.8 0.4 0.0 21.0 2.9
WNW 281.25 - 303.75 3.8 3.5 2.3 0.7 0.1 0.0 10.3 2.5
NW 303.75 - 326.25 3.2 4.7 1.7 0.1 0.0 0.0 9.8 2.2
NNW 326.25 - 348.75 0.4 3.5 1.6 0.0 0.0 0.0 5.5 2.6
0.0
16.7 56.6 22.7 3.5 0.5 0.0 100.0 2.6
TOTAL NUMBER OF OBSERVATIONS =744
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
Joint Frequency Distribution for August, 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 0.3 1.6 1.2 0.0 0.0 0.0 3.1 2.8
NNE 11.25 - 33.75 0.9 1.3 0.7 0.0 0.0 0.0 3.0 2.5
NE 33.75 - 56.25 0.4 2.4 0.1 0.0 0.0 0.0 3.0 2.2
ENE 56.25 - 78.75 1.1 2.0 0.0 0.0 0.0 0.0 3.1 1.8
E 78.75 - 101.25 0.7 3.0 0.0 0.0 0.0 0.0 3.6 1.9
ESE 101.25 - 123.75 0.7 3.9 3.0 3.1 0.3 0.0 10.9 3.8
SE 123.75 - 146.25 0.0 2.2 3.2 9.8 1.3 0.0 16.6 5.8
SSE 146.25 - 168.75 0.4 1.9 4.6 2.8 0.3 0.0 10.0 4.4
S 168.75 - 191.25 0.8 2.0 1.1 1.3 0.1 0.0 5.4 3.7
SSW 191.25 - 213.75 0.9 1.6 1.7 0.5 0.1 0.0 5.0 3.2
SW 213.75 - 236.25 1.1 1.3 1.7 1.2 0.1 0.0 5.5 3.6
WSW 236.25 - 258.75 0.9 3.2 0.5 0.0 0.0 0.0 4.7 2.2
W 258.75 - 281.25 1.5 9.3 4.6 0.4 0.1 0.0 15.9 2.7
WNW 281.25 - 303.75 3.1 1.2 0.1 0.0 0.0 0.0 4.4 1.5
NW 303.75 - 326.25 1.1 1.2 0.3 0.0 0.0 0.0 2.6 1.8
NNW 326.25 - 348.75 0.7 2.0 0.5 0.0 0.0 0.0 3.2 2.3
0.1
14.5 40.2 23.4 19.2 2.4 0.0 100.0 3.4
TOTAL NUMBER OF OBSERVATIONS =743
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =99.9%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
Joint Frequency Distribution for September, 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 0.6 1.5 0.7 0.0 0.0 0.0 2.8 2.3
NNE 11.25 - 33.75 0.6 2.9 1.2 0.0 0.0 0.0 4.7 2.5
NE 33.75 - 56.25 1.0 1.5 0.4 0.0 0.0 0.0 2.9 2.1
ENE 56.25 - 78.75 0.3 2.9 0.3 0.0 0.0 0.0 3.5 2.1
E 78.75 - 101.25 0.7 3.1 0.8 0.0 0.0 0.0 4.6 2.3
ESE 101.25 - 123.75 0.7 4.6 2.9 1.9 0.1 0.0 10.3 3.6
SE 123.75 - 146.25 0.7 1.8 2.1 3.9 0.0 0.0 8.5 4.5
SSE 146.25 - 168.75 0.4 1.1 1.0 2.4 0.3 0.0 5.1 4.9
S 168.75 - 191.25 0.3 3.1 1.0 0.1 0.0 0.0 4.4 2.8
SSW 191.25 - 213.75 0.4 1.5 0.7 0.4 0.0 0.0 3.1 3.0
SW 213.75 - 236.25 0.8 1.7 1.7 0.4 0.1 0.0 4.7 3.2
WSW 236.25 - 258.75 1.4 4.2 1.2 0.1 0.0 0.0 6.9 2.3
W 258.75 - 281.25 3.5 13.2 4.6 0.1 0.1 0.0 21.5 2.5
WNW 281.25 - 303.75 2.9 3.5 0.7 0.3 0.1 0.0 7.5 2.1
NW 303.75 - 326.25 2.1 2.6 0.4 0.1 0.0 0.0 5.3 2.0
NNW 326.25 - 348.75 0.8 2.5 0.4 0.0 0.0 0.0 3.8 2.1
0.4
17.1 51.7 20.1 9.9 0.8 0.0 100.0 2.8
TOTAL NUMBER OF OBSERVATIONS =720
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
Joint Frequency Distribution for July - September 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 2.4 1.3 0.0 0.0 0.0 4.1 2.6
NNE 11.25 - 33.75 0.7 2.8 1.0 0.0 0.0 0.0 4.5 2.5
NE 33.75 - 56.25 0.5 2.6 0.2 0.0 0.0 0.0 3.4 2.2
ENE 56.25 - 78.75 0.8 2.8 0.1 0.0 0.0 0.0 3.6 2.0
E 78.75 - 101.25 0.9 3.7 0.5 0.0 0.0 0.0 5.2 2.2
ESE 101.25 - 123.75 0.9 4.6 3.3 1.8 0.1 0.0 10.7 3.4
SE 123.75 - 146.25 0.3 1.5 1.9 4.9 0.5 0.0 9.2 5.3
SSE 146.25 - 168.75 0.4 1.2 2.0 1.8 0.2 0.0 5.6 4.4
S 168.75 - 191.25 0.4 2.0 0.7 0.5 0.0 0.0 3.7 3.2
SSW 191.25 - 213.75 0.7 1.4 1.0 0.4 0.0 0.0 3.4 3.0
SW 213.75 - 236.25 0.7 1.2 1.4 0.5 0.1 0.0 3.9 3.4
WSW 236.25 - 258.75 1.1 3.5 1.1 0.1 0.0 0.0 5.8 2.4
W 258.75 - 281.25 2.2 11.6 4.9 0.5 0.2 0.0 19.4 2.7
WNW 281.25 - 303.75 3.3 2.7 1.0 0.3 0.1 0.0 7.4 2.2
NW 303.75 - 326.25 2.1 2.9 0.8 0.1 0.0 0.0 5.9 2.1
NNW 326.25 - 348.75 0.6 2.7 0.9 0.0 0.0 0.0 4.2 2.4
0.2
16.1 49.5 22.1 10.9 1.3 0.0 100.0 3.0
TOTAL NUMBER OF OBSERVATIONS =2207
POSSIBLE NUMBER OF OBSERVATIONS =2208
DATA RECOVERY =100.0%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
WIND GUST in mps for JULY, 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 9.2 7.0 6.8 9.3 10.0 7.7 6.7 7.1 4.7 6.2 7.9 9.9 9.8 8.3 6.8 6.3 5.6 3.0 3.4 2.6 9.3 11.4 10.9 7.6 7.4 11.4 2.6
2 5.5 4.3 5.0 2.8 2.9 2.9 2.9 4.3 5.4 7.3 7.3 8.9 11.4 7.1 7.7 7.3 7.1 7.3 4.7 2.8 4.4 5.2 6.2 6.1 5.7 11.4 2.8
3 6.7 6.9 7.7 7.6 7.0 8.3 2.3 4.3 4.8 5.6 7.8 8.7 10.8 9.4 12.3 11.0 9.2 8.4 6.6 4.2 6.5 6.6 5.8 5.5 7.2 12.3 2.3
4 4.6 5.4 5.1 5.7 4.2 6.3 3.9 4.1 5.1 4.7 5.7 6.2 7.7 8.8 10.4 8.0 8.2 7.2 5.8 3.0 3.9 3.1 3.4 3.1 5.6 10.4 3.0
5 4.1 5.4 5.1 5.1 4.2 4.8 3.5 4.3 4.4 5.7 7.2 8.3 5.9 7.9 8.1 11.7 10.6 7.0 4.6 4.1 4.4 4.9 2.6 2.6 5.7 11.7 2.6
6 3.5 5.3 7.7 8.7 11.1 4.7 3.2 3.7 5.0 6.1 6.0 8.0 8.7 8.6 8.6 8.7 8.3 6.7 6.9 3.7 3.3 5.5 5.1 7.4 6.4 11.1 3.2
7 4.8 8.6 9.4 10.2 8.6 4.7 6.9 7.9 5.4 7.0 9.5 10.9 10.7 11.6 10.2 12.6 9.5 8.2 7.4 3.5 3.4 3.1 3.3 4.0 7.6 12.6 3.1
8 3.2 4.8 5.4 5.1 4.9 3.2 3.0 1.9 3.0 4.7 7.2 5.9 6.0 7.2 8.5 8.8 10.8 11.3 8.9 5.9 3.0 5.1 6.2 7.3 5.9 11.3 1.9
9 5.5 3.5 5.6 5.9 5.9 6.9 2.3 2.8 3.9 4.0 5.7 6.9 7.8 7.9 6.8 8.9 7.6 7.6 6.7 4.4 3.4 3.8 5.0 6.8 5.6 8.9 2.3
10 7.0 5.7 5.8 8.4 4.4 4.5 2.2 3.2 3.9 4.5 5.3 6.6 4.8 5.5 6.3 7.4 8.4 6.2 5.3 4.5 5.5 5.0 6.3 6.9 5.6 8.4 2.2
11 6.2 6.7 6.3 6.0 6.7 6.2 3.0 4.8 5.4 5.6 7.6 8.8 8.5 11.7 11.1 9.0 8.2 6.2 5.5 4.0 6.9 7.6 6.9 7.1 6.9 11.7 3.0
12 6.3 5.7 7.2 7.2 6.7 5.3 5.5 2.8 3.7 4.2 5.3 6.1 6.7 13.7 7.5 7.4 7.3 6.7 5.7 2.8 2.4 6.3 6.1 7.1 6.1 13.7 2.4
13 7.9 5.9 7.2 5.2 5.2 4.2 4.2 5.3 5.7 7.7 9.0 9.4 7.9 9.2 8.1 7.6 6.5 5.2 10.4 3.0 15.6 21.2 17.0 8.7 8.2 21.2 3.0
14 3.1 3.1 3.7 3.5 9.1 3.5 5.0 5.1 6.6 9.8 10.3 14.8 15.5 10.8 7.0 6.7 7.1 5.3 3.9 3.0 4.2 4.5 18.0 15.0 7.4 18.0 3.0
15 9.7 4.3 5.0 3.1 3.8 3.4 2.5 3.6 5.4 5.7 7.1 8.1 7.3 7.3 8.0 7.1 15.3 6.5 7.0 4.7 4.2 4.2 7.3 8.2 6.2 15.3 2.5
16 3.9 3.6 3.7 4.3 3.8 2.9 3.3 3.5 3.6 5.5 6.1 6.8 5.8 7.3 8.1 7.8 7.9 7.8 4.3 2.6 3.7 5.0 5.6 7.0 5.2 8.1 2.6
17 6.3 4.5 4.5 4.4 5.6 4.3 2.6 3.4 4.0 5.1 6.5 7.5 8.4 8.2 5.0 5.7 3.4 4.7 3.6 12.0 11.2 7.3 6.8 4.9 5.8 12.0 2.6
18 4.0 4.9 4.1 3.4 4.4 3.7 3.9 5.3 5.1 5.4 7.4 8.0 7.0 8.0 6.6 10.9 11.5 22.4 18.2 10.0 9.5 3.4 3.3 3.6 7.2 22.4 3.3
19 3.5 7.1 5.3 3.7 3.1 2.6 1.9 3.9 5.2 6.6 6.3 7.5 7.1 4.6 5.9 6.1 7.6 8.1 6.5 4.5 3.2 3.3 5.3 6.2 5.2 8.1 1.9
20 4.0 5.4 4.1 2.8 2.8 3.1 1.9 2.5 3.8 4.4 4.8 5.4 7.7 7.0 7.5 8.1 7.7 6.8 7.5 4.1 4.6 5.0 4.2 3.3 4.9 8.1 1.9
21 4.0 5.3 4.0 3.0 3.7 2.6 3.0 3.7 4.6 5.1 5.4 5.0 5.8 8.1 6.5 7.1 8.4 6.6 5.6 4.7 3.8 4.3 4.8 4.9 5.0 8.4 2.6
22 7.7 5.3 5.0 4.1 4.1 4.1 4.7 5.4 6.0 9.0 7.9 8.1 7.4 8.0 7.5 6.9 7.6 6.3 5.4 3.6 2.8 3.7 3.1 7.1 5.9 9.0 2.8
23 7.4 4.7 3.5 4.7 7.5 6.5 3.3 3.4 4.8 4.2 4.6 5.3 6.5 9.9 6.1 5.8 6.7 7.0 5.3 3.3 2.5 6.0 6.6 5.7 5.5 9.9 2.5
24 5.4 4.4 5.9 5.8 6.1 3.0 3.6 6.7 6.5 6.8 6.9 7.3 6.2 6.0 5.7 7.1 4.7 4.8 3.2 8.0 14.9 12.9 10.3 3.1 6.5 14.9 3.0
25 3.0 13.7 14.3 14.6 6.9 3.5 3.7 7.8 3.9 6.5 7.7 5.6 7.5 6.7 6.6 5.9 5.8 4.1 3.4 2.4 23.0 20.2 12.0 11.3 8.3 23.0 2.4
26 13.2 8.6 11.4 8.6 5.9 5.4 4.4 12.1 10.9 8.8 7.8 8.3 11.6 9.0 8.6 8.4 5.6 5.4 5.1 4.4 3.5 5.2 4.1 8.7 7.7 13.2 3.5
27 6.5 15.7 13.7 8.7 4.4 5.6 3.8 6.3 5.4 5.8 6.1 6.3 8.2 9.7 12.8 11.5 8.7 15.0 13.9 5.5 5.5 12.0 7.3 2.8 8.4 15.7 2.8
28 3.6 3.1 4.2 3.2 4.2 3.4 2.7 5.9 7.6 8.1 7.9 5.9 8.3 9.3 7.9 6.1 6.1 6.3 6.6 4.1 3.3 5.5 5.4 5.0 5.6 9.3 2.7
29 6.7 4.8 4.0 2.4 2.6 2.4 5.9 10.0 12.7 13.3 12.7 14.6 17.0 11.4 15.5 11.2 10.1 9.8 6.8 5.3 3.0 4.2 4.0 6.1 8.2 17.0 2.4
30 7.5 5.6 5.5 6.5 5.3 3.1 2.2 6.7 7.2 8.9 9.3 8.4 7.3 7.8 8.3 8.7 9.4 8.5 5.5 3.4 2.8 7.6 8.6 7.5 6.7 9.4 2.2
31 8.3 3.6 4.1 4.4 3.3 2.6 2.4 2.6 4.2 4.2 4.6 6.9 6.3 7.0 6.9 6.9 7.5 6.7 4.4 2.5 4.5 5.9 5.2 4.3 5.0 8.3 2.4
MEAN 5.9 5.9 6.1 5.8 5.4 4.4 3.5 5.0 5.4 6.3 7.1 7.9 8.3 8.5 8.1 8.1 8.0 7.5 6.4 4.4 5.9 6.7 6.7 6.3 6.4
MAX 13.2 15.7 14.3 14.6 11.1 8.3 6.9 12.1 12.7 13.3 12.7 14.8 17.0 13.7 15.5 12.6 15.3 22.4 18.2 12.0 23.0 21.2 18.0 15.0 23.0
MIN 3.0 3.1 3.5 2.4 2.6 2.4 1.9 1.9 3.0 4.0 4.6 5.0 4.8 4.6 5.0 5.7 3.4 3.0 3.2 2.4 2.4 3.1 2.6 2.6 1.9
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =6.4 mps
MAXIMUM WIND GUST =23.0 mps DATE OF OCCURRENCE =7/25 AT 2100 MAXIMUM DAILY MEAN =8.4 mps DATE OF OCCURRENCE =7/27
MINIMUM WIND GUST =1.9 mps DATE OF OCCURRENCE =7/8 AT 0800 MINUMUM DAILY MEAN =4.9 mps DATE OF OCCURRENCE =7/20
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
WIND GUST in mps for AUGUST, 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 5.4 4.4 4.7 5.1 3.7 3.2 3.2 4.5 3.8 5.0 5.3 5.8 6.2 5.5 7.3 7.3 7.4 7.0 6.5 2.8 5.4 5.7 6.9 8.7 5.4 8.7 2.8
2 5.5 5.5 6.2 8.5 7.6 5.9 3.5 3.0 3.4 3.4 5.4 5.9 6.7 ---9.1 6.7 7.2 6.6 4.7 3.2 4.2 5.1 6.2 5.6 5.6 9.1 3.0
3 6.6 6.9 4.0 3.6 2.0 3.2 3.5 7.5 8.6 10.0 10.9 11.2 10.1 8.4 10.6 8.7 8.3 8.7 8.5 9.9 8.4 4.1 6.7 3.6 7.2 11.2 2.0
4 6.0 4.6 6.6 4.4 3.6 4.8 5.8 4.2 6.1 6.0 8.6 9.6 7.6 6.0 5.2 3.4 5.6 7.3 5.2 3.1 3.4 4.2 5.9 6.1 5.6 9.6 3.1
5 7.0 6.0 3.8 3.0 6.2 5.3 3.3 3.0 6.1 9.2 9.7 9.2 8.0 6.2 13.4 4.5 4.8 4.4 7.1 3.7 4.4 12.3 8.9 5.1 6.4 13.4 3.0
6 4.0 3.7 3.1 3.1 2.9 3.6 3.2 9.4 9.1 11.0 9.5 10.1 11.0 6.6 6.3 6.2 6.1 5.7 4.5 3.6 5.3 7.8 5.3 7.5 6.2 11.0 2.9
7 2.8 6.0 3.5 5.7 4.0 4.5 3.5 2.4 4.8 6.5 8.1 7.3 7.0 8.1 11.7 9.1 9.3 7.1 5.0 3.2 4.8 5.8 7.4 6.7 6.0 11.7 2.4
8 4.5 4.7 3.5 4.7 4.0 3.4 1.7 3.9 5.5 6.3 5.7 5.8 7.6 5.9 7.9 7.0 7.8 6.3 5.2 4.1 5.5 6.2 6.9 6.1 5.4 7.9 1.7
9 6.0 6.9 3.7 3.0 3.2 2.6 8.3 10.2 9.9 9.3 11.2 12.1 12.3 13.2 8.6 8.2 8.6 9.8 5.1 7.2 4.8 3.4 3.6 6.1 7.4 13.2 2.6
10 5.5 4.8 6.5 6.1 3.8 5.3 9.3 9.9 10.7 12.7 11.2 12.1 13.0 10.7 8.9 5.4 12.5 8.7 10.4 7.6 4.2 3.9 4.3 7.3 8.1 13.0 3.8
11 10.8 7.5 3.0 3.2 2.3 3.9 2.9 4.5 7.1 10.0 11.1 10.9 9.0 10.1 11.4 8.3 7.3 6.6 6.0 11.3 14.4 10.9 12.1 16.1 8.3 16.1 2.3
12 16.3 16.8 15.0 10.9 10.6 9.0 9.1 10.9 11.7 12.5 13.4 14.6 12.7 13.7 17.5 10.9 9.0 3.6 8.6 7.3 8.7 14.2 15.2 15.5 12.0 17.5 3.6
13 17.0 10.9 9.5 7.6 10.0 5.6 4.5 9.8 11.6 13.9 14.2 14.8 14.8 14.9 15.0 13.1 13.0 9.2 4.3 6.9 8.3 5.5 4.6 5.6 10.2 17.0 4.3
14 5.2 4.4 4.0 4.5 4.2 4.7 3.7 7.0 10.1 10.0 9.6 9.5 8.7 6.6 7.5 3.7 5.0 3.5 4.4 3.7 5.8 5.3 6.1 5.6 6.0 10.1 3.5
15 5.0 3.1 4.5 4.8 6.5 5.2 7.7 10.4 10.1 11.7 12.5 12.6 13.5 16.5 14.6 14.3 12.8 9.3 6.0 5.9 6.1 6.7 7.9 13.5 9.2 16.5 3.1
16 11.7 7.2 7.0 6.1 3.8 4.5 4.9 4.6 5.7 8.5 11.4 14.3 13.7 14.6 12.2 12.4 13.3 12.0 7.2 2.8 5.5 4.5 7.9 10.3 8.6 14.6 2.8
17 11.1 9.4 8.7 9.0 7.6 6.3 7.4 9.9 10.1 12.1 22.0 17.7 8.5 4.9 7.1 10.1 6.6 6.9 8.3 7.5 7.0 7.9 18.0 7.9 9.7 22.0 4.9
18 4.2 4.4 3.9 3.2 6.5 9.0 9.3 12.6 13.1 12.4 12.5 12.0 10.9 9.6 8.6 12.4 18.0 11.8 10.6 14.9 15.0 12.3 8.4 4.8 10.0 18.0 3.2
19 3.3 3.3 4.0 5.1 5.0 4.9 4.5 7.2 9.1 10.6 11.9 13.1 12.4 11.3 11.2 9.3 9.4 7.9 6.6 7.2 7.3 4.3 5.3 3.1 7.4 13.1 3.1
20 2.9 3.7 2.9 7.6 10.1 9.2 8.4 10.3 10.7 11.0 12.2 12.5 12.6 11.1 13.0 13.9 9.3 11.2 5.9 6.9 7.2 8.0 8.3 10.4 9.1 13.9 2.9
21 10.7 9.5 9.6 10.1 9.9 8.5 10.8 9.4 10.7 14.2 16.0 16.6 11.2 9.5 9.7 10.4 9.3 8.7 5.7 2.9 4.4 6.1 6.7 6.3 9.5 16.6 2.9
22 4.4 3.1 9.7 9.5 10.4 8.7 11.2 11.5 12.0 11.8 6.9 15.6 14.6 16.0 15.8 16.4 12.2 12.5 9.2 5.0 6.1 7.4 11.0 9.7 10.4 16.4 3.1
23 11.1 10.7 9.8 9.8 7.6 7.4 9.8 10.1 10.7 15.2 18.4 17.1 17.5 15.7 19.4 16.3 14.8 18.9 12.9 11.5 11.3 14.0 11.0 15.2 13.2 19.4 7.4
24 13.3 14.2 9.5 8.9 10.2 5.6 9.5 16.3 21.2 18.6 19.7 20.8 17.8 16.2 16.7 19.8 15.9 15.7 11.8 12.1 6.0 4.3 4.6 3.5 13.0 21.2 3.5
25 3.5 4.7 3.6 5.9 3.6 2.4 2.5 4.7 8.6 11.5 14.5 13.9 11.4 11.4 14.9 11.4 11.5 11.2 4.1 4.9 4.9 5.6 4.6 3.0 7.4 14.9 2.4
26 1.9 3.0 2.2 2.5 2.0 2.0 1.9 2.8 4.4 4.9 5.3 6.6 5.2 7.1 5.6 5.6 4.6 5.0 4.5 4.0 4.1 3.2 4.0 3.7 4.0 7.1 1.9
27 4.0 4.1 5.3 4.2 4.0 4.9 5.2 4.1 6.3 6.5 9.0 7.9 7.9 10.3 10.6 12.3 11.3 8.1 3.6 3.3 4.4 5.6 6.0 4.5 6.4 12.3 3.3
28 4.8 6.9 8.5 8.8 4.6 3.4 2.5 4.1 4.6 5.6 5.8 7.3 8.3 7.7 6.8 6.7 6.2 5.0 3.8 6.1 5.6 8.9 7.9 7.1 6.1 8.9 2.5
29 4.9 5.1 2.7 2.8 2.6 2.5 3.9 1.6 4.5 4.8 5.4 5.4 7.2 6.2 6.2 6.3 7.5 6.1 5.8 4.5 5.0 4.9 4.6 4.2 4.8 7.5 1.6
30 6.7 4.8 3.9 4.5 4.3 4.3 4.6 3.8 3.9 5.1 5.2 5.4 5.9 5.9 5.9 6.2 4.4 3.9 3.0 4.0 3.2 5.0 5.5 4.8 4.8 6.7 3.0
31 6.6 4.9 5.0 5.9 6.2 6.2 5.4 2.9 3.9 4.5 4.1 5.3 4.8 5.5 5.9 6.0 4.2 4.7 2.7 3.6 4.0 4.6 6.2 7.8 5.0 7.8 2.7
MEAN 6.9 6.3 5.7 5.9 5.6 5.2 5.6 7.0 8.3 9.5 10.5 11.1 10.3 9.8 10.5 9.4 9.1 8.2 6.4 5.9 6.3 6.7 7.4 7.3 7.7
MAX 17.0 16.8 15.0 10.9 10.6 9.2 11.2 16.3 21.2 18.6 22.0 20.8 17.8 16.5 19.4 19.8 18.0 18.9 12.9 14.9 15.0 14.2 18.0 16.1 22.0
MIN 1.9 3.0 2.2 2.5 2.0 2.0 1.7 1.6 3.4 3.4 4.1 5.3 4.8 4.9 5.2 3.4 4.2 3.5 2.7 2.8 3.2 3.2 3.6 3.0 1.6
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =743 DATA RECOVERY RATE =
MONTHLY MEAN =7.7 mps
MAXIMUM WIND GUST =22.0 mps DATE OF OCCURRENCE =8/17 AT 1100 MAXIMUM DAILY MEAN =13.2 mps DATE OF OCCURRENCE =8/23
MINIMUM WIND GUST =1.6 mps DATE OF OCCURRENCE =8/29 AT 0800 MINUMUM DAILY MEAN =4.0 mps DATE OF OCCURRENCE =8/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.9%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
WIND GUST in mps for SEPTEMBER, 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 4.8 5.1 3.8 4.1 5.4 5.2 4.3 3.6 3.7 4.9 5.6 6.9 6.5 6.8 6.8 6.3 5.2 4.3 3.4 3.3 3.7 4.5 4.0 4.7 4.9 6.9 3.3
2 4.9 5.7 4.4 3.9 4.5 6.0 6.3 7.2 10.8 12.6 11.4 11.6 13.1 11.2 11.4 11.2 8.0 3.5 6.7 7.1 10.1 5.1 7.4 5.9 7.9 13.1 3.5
3 6.9 4.7 6.9 12.4 11.8 10.1 5.1 3.3 9.3 12.9 11.8 12.6 10.3 7.6 8.7 24.5 4.4 3.8 15.3 10.7 11.0 11.7 12.0 4.5 9.7 24.5 3.3
4 10.1 13.9 4.8 7.0 4.6 8.2 6.7 5.8 4.5 4.1 5.2 9.5 9.3 8.5 9.6 8.8 8.4 7.2 7.6 5.8 4.8 4.5 3.6 4.0 6.9 13.9 3.6
5 4.4 5.4 6.1 4.0 4.4 5.3 4.8 3.2 5.2 3.0 4.5 4.8 4.6 5.4 5.8 4.7 5.1 5.4 3.1 2.9 3.2 3.7 5.0 4.4 4.5 6.1 2.9
6 6.3 5.8 4.8 4.2 3.2 3.5 4.0 4.1 5.4 8.5 9.1 7.7 6.9 8.1 6.6 6.1 4.7 4.6 3.8 2.8 2.6 3.7 4.8 6.8 5.3 9.1 2.6
7 5.5 4.4 4.6 6.1 6.2 5.2 4.7 3.8 5.6 9.4 10.4 8.5 8.8 9.2 7.8 5.3 4.1 6.1 3.1 4.5 3.5 4.7 7.1 5.3 6.0 10.4 3.1
8 5.0 5.1 5.5 5.3 6.1 4.9 1.9 2.3 2.9 8.2 9.5 12.1 8.5 7.7 8.5 6.8 6.1 4.9 12.5 10.9 12.6 2.8 3.1 3.8 6.5 12.6 1.9
9 3.9 2.4 2.5 3.5 2.4 2.9 2.9 3.6 8.9 9.2 9.2 9.1 7.6 8.5 7.5 7.9 6.2 3.8 12.2 14.2 13.4 9.5 8.9 6.1 6.9 14.2 2.4
10 3.3 4.9 4.8 3.6 3.4 2.5 1.7 8.2 11.5 11.8 12.5 11.9 11.7 9.9 10.3 12.0 11.5 5.4 4.0 21.7 11.9 12.8 5.1 5.8 8.4 21.7 1.7
11 6.3 9.3 8.9 7.7 7.2 7.0 8.0 9.5 11.3 11.3 13.8 16.1 16.9 16.6 16.4 14.2 12.3 12.7 12.8 17.5 18.3 16.9 16.0 17.2 12.7 18.3 6.3
12 9.3 6.5 5.5 7.2 7.4 4.5 6.7 8.6 7.2 5.4 8.5 8.8 10.8 9.5 8.9 8.9 9.8 8.8 7.0 3.5 3.0 4.3 3.7 2.0 6.9 10.8 2.0
13 5.1 3.3 3.2 3.2 3.1 4.3 3.4 2.6 4.5 4.8 5.8 5.9 5.9 6.0 5.1 5.9 5.8 3.6 2.6 3.1 3.9 3.8 3.5 3.4 4.2 6.0 2.6
14 3.6 4.2 4.0 4.0 4.4 3.1 3.0 4.0 6.6 7.7 8.1 9.2 8.5 9.4 10.4 10.2 8.2 4.8 3.8 3.0 4.5 4.3 7.8 5.8 5.9 10.4 3.0
15 7.7 5.7 7.8 7.4 6.1 5.3 7.3 10.0 12.8 12.7 14.1 15.1 13.7 14.4 13.3 12.3 15.8 3.3 2.3 7.9 4.1 6.9 6.3 6.5 9.1 15.8 2.3
16 4.9 3.8 2.3 2.6 5.7 6.8 4.8 8.3 10.0 14.8 17.4 16.1 18.9 17.6 15.0 11.7 5.4 4.3 3.4 10.2 5.1 3.2 4.3 9.7 8.6 18.9 2.3
17 10.4 6.2 5.6 5.7 3.7 1.7 2.6 11.0 9.6 10.6 7.7 15.6 5.1 9.3 16.0 5.3 1.5 2.2 2.2 2.8 3.2 3.1 3.9 3.2 6.2 16.0 1.5
18 3.6 4.6 4.7 4.4 4.5 4.9 4.0 2.2 3.9 5.2 6.1 6.6 5.5 5.6 6.2 5.4 5.6 6.9 6.3 4.0 3.1 3.2 3.8 4.4 4.8 6.9 2.2
19 4.1 4.3 3.4 3.9 3.7 3.2 3.7 2.0 2.9 3.5 3.7 4.3 4.4 6.1 6.3 5.6 5.4 5.6 4.2 3.6 2.3 4.7 5.4 4.7 4.2 6.3 2.0
20 5.1 5.8 6.2 3.6 3.0 2.5 5.0 2.9 3.7 5.4 4.0 5.1 7.5 8.5 9.2 8.3 7.0 6.8 4.1 3.7 4.6 6.5 5.5 4.5 5.4 9.2 2.5
21 2.5 4.9 5.8 4.2 3.3 4.9 4.2 3.7 4.2 4.5 4.7 8.5 8.2 8.4 9.6 7.3 8.7 6.8 3.3 3.8 5.8 4.1 5.2 1.9 5.4 9.6 1.9
22 3.2 2.3 3.2 2.3 3.2 4.1 2.7 2.0 3.3 3.0 3.8 5.1 5.4 5.4 5.2 6.2 6.5 5.7 3.6 2.7 3.2 4.1 5.2 5.3 4.0 6.5 2.0
23 7.9 7.5 4.5 3.7 4.3 4.8 5.4 3.9 3.6 4.5 5.5 5.3 5.8 6.2 5.3 6.2 4.6 4.6 2.4 2.6 3.3 2.9 2.6 2.4 4.6 7.9 2.4
24 2.2 2.7 2.9 3.4 1.8 2.0 2.9 2.4 3.4 4.0 4.8 4.9 5.4 6.3 4.5 5.4 4.8 3.5 3.2 4.8 4.1 4.2 4.5 5.5 3.9 6.3 1.8
25 5.7 3.2 3.4 2.8 3.2 4.3 4.5 2.3 10.8 13.1 11.4 12.5 11.4 15.9 12.0 12.5 10.7 7.7 6.3 6.3 5.2 6.1 5.7 6.0 7.6 15.9 2.3
26 6.8 5.2 2.8 7.3 5.4 5.7 5.8 5.7 6.8 7.1 9.1 12.2 9.1 8.3 9.0 7.6 8.1 7.4 4.0 3.5 5.2 7.0 7.4 7.0 6.8 12.2 2.8
27 6.0 5.3 5.0 5.0 5.5 6.0 5.3 4.1 3.1 3.3 3.6 4.3 4.8 3.8 5.2 6.7 5.5 4.8 2.6 3.8 4.1 7.0 6.1 7.5 4.9 7.5 2.6
28 5.6 7.5 6.9 5.4 3.7 4.0 4.4 3.5 4.0 5.1 6.8 9.2 10.8 10.0 9.3 8.8 8.5 5.6 4.2 3.6 4.8 5.9 6.7 6.7 6.3 10.8 3.5
29 4.5 9.3 9.5 7.9 9.4 8.7 7.6 8.1 8.4 9.4 10.9 11.3 12.7 11.3 10.9 23.1 12.9 11.9 15.3 8.9 14.2 13.9 10.6 9.5 10.8 23.1 4.5
30 6.1 4.2 4.4 4.9 5.3 5.0 4.0 2.4 4.4 5.4 6.7 6.8 8.4 6.8 7.1 7.0 5.5 5.0 1.4 3.9 3.2 3.7 2.4 3.0 4.9 8.4 1.4
MEAN 5.5 5.4 4.9 5.0 4.9 4.9 4.6 4.8 6.4 7.5 8.2 9.2 8.9 8.9 8.9 9.1 7.2 5.7 5.5 6.2 6.1 6.0 5.9 5.6 6.5
MAX 10.4 13.9 9.5 12.4 11.8 10.1 8.0 11.0 12.8 14.8 17.4 16.1 18.9 17.6 16.4 24.5 15.8 12.7 15.3 21.7 18.3 16.9 16.0 17.2 24.5
MIN 2.2 2.3 2.3 2.3 1.8 1.7 1.7 2.0 2.9 3.0 3.6 4.3 4.4 3.8 4.5 4.7 1.5 2.2 1.4 2.6 2.3 2.8 2.4 1.9 1.4
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =6.5 mps
MAXIMUM WIND GUST =24.5 mps DATE OF OCCURRENCE =9/3 AT 1600 MAXIMUM DAILY MEAN =12.7 mps DATE OF OCCURRENCE =9/11
MINIMUM WIND GUST =1.4 mps DATE OF OCCURRENCE =9/30 AT 1900 MINUMUM DAILY MEAN =3.9 mps DATE OF OCCURRENCE =9/24
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for July, 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
1 315/07.0 310/05.0 270/01.6 297/05.6 325/07.1 343/08.4 351/07.4 005/05.3 018/03.7 028/03.5 353/02.7 359/06.4 029/06.1
2 269/03.2 267/03.7 294/03.5 305/02.8 271/01.7 264/02.1 045/01.2 044/02.2 028/02.4 311/04.7 322/04.3 057/04.7 041/05.1
3 227/04.2 229/04.5 226/04.9 224/05.4 223/05.6 232/04.1 014/01.9 013/02.3 029/02.7 051/03.0 037/03.9 043/04.3 067/04.9
4 355/05.2 347/08.2 333/04.7 314/03.1 285/02.3 308/01.4 072/01.4 074/02.1 091/02.5 048/03.4 050/03.0 042/03.0 075/04.1
5 283/02.5 271/02.5 284/02.6 246/01.8 212/01.9 218/02.9 274/01.4 036/02.0 038/02.3 075/02.8 089/03.5 085/03.9 071/03.9
6 253/03.4 244/03.7 229/04.6 241/04.2 234/03.7 215/01.7 050/01.3 035/02.2 095/03.0 091/03.4 073/03.4 096/04.1 017/04.4
7 264/03.7 275/04.2 266/04.1 277/05.5 296/05.1 345/02.1 062/01.5 099/02.5 033/03.6 001/03.6 314/05.6 316/07.2 317/08.1
8 277/02.3 276/03.0 335/03.2 288/02.5 280/02.4 351/01.3 338/01.6 012/01.7 037/01.9 042/02.8 075/03.2 050/03.3 035/03.5
9 246/03.2 237/02.7 228/03.6 230/03.8 231/04.1 272/03.1 200/01.4 035/01.5 053/01.9 080/02.9 034/03.1 059/04.2 093/03.8
10 226/04.9 224/04.4 224/05.2 228/04.9 221/02.1 238/02.0 258/01.1 070/01.2 126/03.2 067/03.1 049/03.3 064/03.6 079/03.9
11 226/04.8 224/04.7 222/05.6 221/05.4 210/04.6 221/04.6 219/03.5 140/02.7 165/04.7 170/06.5 160/05.6 133/04.2 076/03.7
12 246/03.1 248/01.9 228/03.3 231/03.3 236/02.8 282/02.0 214/01.4 018/01.4 034/03.0 030/03.0 057/02.9 054/03.2 065/04.1
13 229/04.1 205/03.8 234/03.1 226/03.9 222/03.7 213/04.4 207/04.5 190/03.6 172/04.1 173/05.0 167/05.3 174/06.1 209/04.6
14 245/01.8 296/02.1 227/03.4 233/03.9 243/03.5 207/03.1 141/02.2 175/01.9 170/04.6 169/04.8 157/07.6 163/06.8 159/06.3
15 319/04.5 029/01.5 271/02.8 302/01.6 320/01.7 229/01.9 196/02.5 095/01.2 087/02.5 090/03.4 046/04.3 052/03.3 025/04.6
16 200/04.0 199/02.2 217/04.2 216/04.1 235/03.3 345/01.3 342/01.6 035/02.4 040/02.3 055/03.0 085/03.1 087/03.5 061/02.7
17 237/04.0 224/03.3 210/02.8 213/03.2 220/05.0 224/04.8 142/01.9 128/02.7 043/02.5 048/02.9 110/04.0 064/04.3 078/04.8
18 224/03.5 220/04.0 220/05.0 194/03.6 213/03.1 215/03.4 199/03.2 339/01.4 079/02.7 119/02.9 142/03.6 090/04.3 101/04.5
19 215/04.7 216/05.3 205/05.5 199/03.9 226/02.7 352/01.4 225/02.7 086/01.3 026/02.2 074/03.1 067/03.2 089/03.9 114/03.2
20 291/02.1 195/02.6 221/04.1 254/01.9 276/02.4 297/02.0 014/01.1 007/01.9 037/02.2 050/03.0 048/02.9 045/03.6 049/03.6
21 222/04.8 219/04.4 209/04.8 350/01.3 214/03.0 283/02.4 212/01.5 134/01.6 075/02.7 070/02.6 081/03.0 063/03.2 045/03.7
22 222/04.9 217/04.9 207/05.4 199/04.6 213/04.4 220/04.6 209/04.1 161/03.7 151/05.3 148/04.4 135/04.2 087/03.7 085/04.4
23 237/02.9 266/01.8 219/03.5 221/03.8 222/04.4 220/03.8 148/01.5 160/01.7 158/02.8 162/04.5 100/04.0 093/04.2 077/03.1
24 227/04.5 237/03.5 221/03.7 220/05.2 218/03.0 200/01.6 188/03.2 178/04.9 160/03.4 137/02.9 122/03.3 082/03.8 068/04.3
25 207/02.0 301/02.9 299/08.7 301/08.1 325/03.5 294/04.4 187/02.9 198/04.0 253/01.3 092/02.1 103/03.1 105/03.4 101/03.9
26 199/05.0 206/06.5 196/06.7 197/06.9 216/06.0 214/03.0 187/04.3 181/09.3 172/06.4 165/05.8 151/05.6 143/04.3 137/03.4
27 203/05.3 220/08.8 232/07.2 187/02.8 239/03.0 223/04.1 184/01.6 030/01.8 056/03.1 038/02.5 067/02.2 087/02.9 123/03.9
28 187/02.8 194/02.4 226/03.0 217/03.9 192/03.1 219/04.1 179/01.7 159/03.8 143/05.7 136/05.5 133/06.3 181/04.7 142/05.2
29 183/06.8 184/07.6 183/09.1 187/06.8 191/05.4 195/05.7 181/08.2 173/08.7 173/09.0 175/07.8 158/07.9 153/09.4 168/08.2
30 205/06.1 189/05.8 180/08.4 173/08.9 183/07.3 217/05.1 202/02.8 179/05.2 164/05.7 150/05.0 123/04.6 079/04.7 023/06.0
31 021/01.8 350/02.0 272/02.0 258/02.1 288/01.7 186/01.6 166/01.6 030/01.2 038/02.1 051/02.3 046/03.0 055/03.6 059/03.8
MEAN 239/04.0 240/04.0 235/04.5 237/04.2 239/03.7 246/03.2 191/02.5 089/02.9 086/03.4 088/03.8 087/04.1 081/04.4 076/04.5
MAX 315/07.0 220/08.8 183/09.1 173/08.9 183/07.3 343/08.4 181/08.2 181/09.3 173/09.0 175/07.8 158/07.9 153/09.4 168/08.2
MIN 021/01.8 029/01.5 270/01.6 350/01.3 320/01.7 351/01.3 258/01.1 030/01.2 253/01.3 092/02.1 067/02.2 087/02.9 061/02.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for July, 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
1 019/06.5 016/05.5 016/04.2 003/04.4 350/02.5 346/02.3 336/01.3 329/06.3 348/11.3 349/10.5 341/07.4 348/05.5 348/11.3 336/01.3
2 021/04.0 025/04.4 028/04.1 040/04.9 024/04.9 017/03.5 304/02.1 250/02.5 230/03.8 229/04.2 232/03.5 331/03.5 041/05.1 045/01.2
3 091/05.8 094/07.0 134/05.3 326/06.0 005/05.8 027/05.0 346/03.1 320/03.1 294/04.3 330/05.4 341/03.6 357/04.4 094/07.0 014/01.9
4 027/03.9 040/04.5 014/06.4 316/05.0 327/05.5 023/04.3 320/02.0 257/02.4 230/03.0 245/01.8 277/02.7 355/03.6 347/08.2 072/01.4
5 061/03.6 046/04.7 057/04.3 313/06.2 320/06.8 350/05.0 306/02.6 260/02.6 258/03.3 255/02.8 269/03.5 316/03.3 320/06.8 274/01.4
6 317/04.9 314/04.1 333/04.4 303/04.8 315/03.5 236/02.1 230/03.1 301/02.0 253/02.8 234/03.6 248/03.5 276/03.4 317/04.9 050/01.3
7 319/10.4 316/07.6 323/06.6 346/07.9 350/08.0 354/07.1 348/04.9 324/03.6 305/02.7 306/03.0 303/03.0 324/05.1 319/10.4 062/01.5
8 049/03.4 035/04.0 028/04.9 351/05.5 307/05.3 318/05.3 327/03.1 319/02.8 275/02.7 264/03.1 272/02.9 340/03.2 351/05.5 351/01.3
9 079/03.2 037/04.1 333/03.5 349/05.7 355/05.2 349/06.0 330/03.4 298/01.7 319/01.8 269/02.7 236/04.0 325/03.4 349/06.0 200/01.4
10 068/04.3 066/03.7 025/04.9 038/04.8 029/05.1 015/04.0 249/03.3 230/04.2 233/03.9 238/03.9 231/03.5 202/03.7 224/05.2 258/01.1
11 050/03.8 315/05.3 349/07.2 001/08.1 355/07.1 348/05.9 281/02.7 232/04.2 236/03.7 249/03.3 252/02.8 228/04.8 001/08.1 140/02.7
12 019/05.9 010/05.5 034/04.9 011/05.4 356/05.4 348/05.1 305/02.3 283/02.2 252/03.1 232/03.9 227/04.8 319/03.5 019/05.9 018/01.4
13 349/07.1 010/06.8 024/05.4 017/03.8 039/04.0 154/03.7 214/03.9 191/09.3 327/03.7 251/03.7 220/04.6 210/04.7 191/09.3 234/03.1
14 149/04.4 221/03.1 288/04.1 359/02.7 070/02.9 039/03.2 281/02.1 230/02.2 212/03.2 287/12.5 306/08.4 215/04.2 287/12.5 245/01.8
15 060/03.6 066/04.2 055/03.4 059/03.5 328/04.2 311/03.6 258/02.8 211/02.9 226/04.9 225/03.8 146/02.7 016/03.2 226/04.9 095/01.2
16 029/03.7 030/03.9 068/03.9 105/05.4 318/04.9 317/02.9 286/02.2 233/03.3 239/02.5 229/02.9 231/04.3 332/03.2 105/05.4 345/01.3
17 074/03.3 029/03.0 100/03.7 174/02.5 249/02.2 268/02.5 235/07.2 208/06.9 191/05.1 219/04.4 218/04.7 183/03.8 235/07.2 142/01.9
18 072/03.2 197/04.2 219/05.0 232/04.0 248/07.4 292/10.3 239/04.6 205/05.9 214/03.0 217/03.2 198/03.3 202/04.1 292/10.3 339/01.4
19 039/03.5 009/02.9 062/03.3 008/05.3 003/05.9 348/07.4 346/04.9 291/02.4 294/02.4 270/02.1 255/02.7 351/03.6 348/07.4 086/01.3
20 360/04.3 039/04.8 012/05.4 011/05.0 360/05.6 356/06.0 345/04.2 285/02.7 309/02.0 221/03.8 221/04.7 343/03.4 356/06.0 014/01.1
21 043/04.5 017/04.1 022/04.5 001/05.3 345/06.4 343/05.8 342/04.5 323/03.4 275/02.5 243/03.3 230/03.3 341/03.6 345/06.4 350/01.3
22 074/04.2 038/04.7 036/05.2 013/05.9 006/05.6 358/05.5 319/03.0 285/02.5 304/02.4 286/02.1 258/03.0 212/04.3 013/05.9 286/02.1
23 059/02.3 048/03.7 017/03.9 131/03.5 104/03.4 065/03.8 225/02.7 229/03.9 234/03.9 229/03.8 225/04.9 174/03.4 225/04.9 148/01.5
24 036/04.3 040/04.4 017/03.1 082/02.9 018/02.5 261/02.2 242/02.6 291/08.8 284/05.8 034/03.2 186/01.4 188/03.7 291/08.8 186/01.4
25 080/03.3 022/03.4 023/03.9 051/03.3 081/02.6 090/01.8 225/02.8 299/10.7 299/11.5 281/04.5 310/07.8 329/04.4 299/11.5 253/01.3
26 142/05.4 158/04.9 153/03.7 027/02.9 018/02.6 164/02.3 219/02.9 228/03.5 224/05.2 213/04.6 184/07.1 182/04.9 181/09.3 164/02.3
27 147/06.4 167/06.4 209/05.3 199/04.4 239/07.3 315/06.0 359/03.0 258/03.3 245/03.3 155/05.2 181/02.1 193/04.2 220/08.8 184/01.6
28 294/04.3 357/05.5 008/04.2 351/05.4 017/03.9 005/04.7 335/02.5 264/02.5 228/03.8 225/05.1 210/05.8 206/04.2 133/06.3 179/01.7
29 205/05.7 197/06.8 183/05.8 178/04.7 188/05.3 192/03.6 229/03.4 231/03.4 226/04.9 208/06.3 208/06.6 189/06.5 153/09.4 231/03.4
30 019/04.5 025/04.8 357/06.4 001/07.2 012/06.0 004/04.6 314/02.4 285/02.5 299/02.5 298/01.8 231/01.9 224/05.0 173/08.9 298/01.8
31 023/03.9 020/03.7 030/04.7 014/05.5 019/04.9 009/04.4 290/02.7 230/03.4 229/03.3 228/04.2 250/02.1 356/03.0 014/05.5 030/01.2
MEAN 046/04.6 029/04.7 025/04.7 010/04.9 356/04.9 348/04.5 291/03.2 264/03.9 260/03.9 249/04.2 240/04.1 277/04.0
MAX 319/10.4 316/07.6 349/07.2 001/08.1 350/08.0 292/10.3 235/07.2 299/10.7 299/11.5 287/12.5 306/08.4 287/12.5
MIN 059/02.3 009/02.9 017/03.1 174/02.5 249/02.2 090/01.8 336/01.3 298/01.7 319/01.8 245/01.8 186/01.4 258/01.1
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 277/04.0 MAXIMUM WIND SPEED =12.5 AT 287 DEGREES DATE OF OCCURRENCE = 7/14 AT 2300
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for August, 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
1 225/02.2 247/02.4 255/02.9 262/02.1 296/01.6 257/02.4 201/01.2 113/01.2 017/01.7 037/02.4 044/02.9 070/03.4 019/03.6
2 270/02.4 242/03.4 246/03.2 237/03.9 226/03.1 224/03.1 357/01.3 018/01.6 ---------003/04.4 037/04.0
3 231/03.5 219/04.3 212/04.6 203/04.7 205/05.8 190/07.2 188/07.3 183/06.1 177/05.6 158/06.7 161/06.6 173/06.9 175/06.8
4 192/03.5 203/03.2 162/07.2 186/03.3 193/05.7 169/07.0 190/05.2 175/06.1 176/04.1 176/04.7 155/04.7 147/04.4 089/03.0
5 224/03.1 225/03.1 227/03.8 240/02.8 227/04.3 225/04.1 220/02.4 039/01.5 098/02.8 157/05.7 159/06.9 140/05.8 155/05.5
6 227/02.2 210/03.1 032/01.4 223/03.2 212/03.1 206/02.9 199/03.5 170/04.7 163/05.6 173/07.3 168/06.9 155/06.0 144/05.6
7 196/03.9 169/03.4 230/03.0 248/02.2 280/01.4 216/01.6 241/01.2 097/01.5 058/02.1 114/02.2 095/03.6 048/04.4 032/03.6
8 198/02.3 194/03.0 207/01.7 203/01.5 039/01.5 210/01.1 226/02.3 218/01.8 024/02.9 165/02.2 111/03.0 084/03.3 061/04.1
9 179/06.8 187/07.9 189/08.2 182/04.9 201/06.0 196/04.0 183/07.2 182/06.7 182/07.2 176/07.4 170/07.6 149/07.5 140/07.4
10 190/04.8 208/05.3 192/06.3 189/07.2 185/07.7 191/07.7 197/06.0 176/04.4 166/06.8 161/08.8 161/07.3 161/06.3 169/07.0
11 223/03.4 306/02.9 216/02.5 223/02.9 220/03.7 210/04.2 203/04.9 187/04.3 171/05.3 166/06.4 157/06.0 149/07.4 153/05.7
12 186/13.9 189/13.0 172/07.9 181/08.6 175/09.5 180/07.1 155/08.6 178/07.5 170/09.2 172/10.1 164/08.8 159/08.3 190/08.1
13 179/14.6 183/09.1 164/03.3 189/07.5 185/08.1 165/05.3 154/03.0 161/03.9 169/05.3 149/04.6 167/05.8 161/08.1 160/08.4
14 217/04.0 203/03.8 213/02.6 218/05.0 214/04.4 197/05.9 179/04.0 166/05.7 170/07.7 166/07.0 168/06.3 158/05.9 127/04.8
15 208/04.0 214/04.0 208/02.8 205/03.4 186/03.3 183/05.2 180/06.6 176/08.4 174/09.8 174/07.5 169/09.5 161/08.3 142/06.7
16 233/03.0 230/03.2 253/02.9 267/03.1 207/01.4 232/03.1 217/02.7 118/01.3 118/02.7 156/05.4 163/06.0 160/07.8 148/07.6
17 172/09.6 177/08.7 179/08.8 189/07.7 191/05.7 201/05.4 191/05.6 177/05.5 164/06.2 162/05.2 193/06.2 230/07.4 288/03.6
18 244/03.8 219/05.0 204/04.6 186/04.7 182/05.0 173/05.4 174/05.2 173/08.5 172/09.4 164/09.0 153/07.0 148/05.2 158/05.0
19 187/03.8 219/04.8 211/04.2 195/06.8 191/07.6 196/07.4 184/04.1 172/05.1 174/07.5 171/08.7 173/07.8 158/06.8 156/07.5
20 188/09.5 186/08.9 186/09.1 183/08.0 183/08.1 183/07.7 175/06.7 171/07.7 168/07.6 168/07.5 158/05.7 155/07.0 150/05.6
21 213/05.6 181/07.2 180/08.1 180/07.1 178/07.2 174/06.7 173/07.2 163/07.6 147/06.0 154/06.4 190/08.2 199/08.0 194/08.0
22 202/05.8 182/08.3 177/08.5 173/08.4 167/08.7 170/07.4 176/07.7 178/07.7 161/09.2 154/06.1 171/03.7 172/09.0 165/10.2
23 187/10.8 192/08.9 197/07.6 203/07.0 204/06.4 212/05.3 199/03.5 169/05.9 158/08.1 164/10.1 161/12.3 167/13.3 184/11.6
24 185/13.5 183/09.8 177/09.7 176/09.7 176/07.3 178/07.5 181/09.5 180/11.0 165/11.2 163/13.6 160/12.8 175/12.1 175/12.8
25 227/01.7 191/02.3 212/01.8 253/02.3 234/02.9 267/02.1 220/02.4 187/03.5 151/04.7 155/06.9 159/07.4 182/09.9 194/06.9
26 306/01.5 071/01.0 191/01.0 192/01.7 194/01.0 163/01.3 200/02.0 076/01.4 059/02.3 043/02.8 075/02.8 077/03.1 036/03.0
27 246/01.8 228/04.1 222/02.9 224/03.3 224/04.5 224/04.6 225/03.7 135/02.0 170/04.9 148/04.9 149/05.2 145/04.8 145/05.5
28 187/08.5 179/07.4 175/06.5 177/06.5 175/08.2 179/07.8 190/06.8 170/08.4 162/06.4 096/04.8 050/03.2 064/03.7 037/04.2
29 129/01.5 150/01.7 149/01.8 169/02.2 174/02.6 165/01.8 197/03.4 153/02.8 139/02.2 066/02.6 060/02.7 045/03.5 066/03.1
30 230/03.1 227/04.4 217/03.3 221/02.6 223/02.4 225/02.3 225/02.6 019/01.0 060/02.0 052/02.5 054/02.6 044/03.4 068/03.2
31 235/03.7 230/04.0 228/03.6 226/04.2 223/03.7 227/03.8 224/02.7 109/01.3 074/01.7 053/02.6 048/02.8 062/03.2 058/03.0
MEAN 209/05.2 203/05.2 201/04.7 206/04.8 202/04.9 199/04.8 196/04.5 158/04.7 148/05.6 147/06.1 145/06.1 140/06.4 133/06.0
MAX 179/14.6 189/13.0 177/09.7 176/09.7 175/09.5 179/07.8 181/09.5 180/11.0 165/11.2 163/13.6 160/12.8 167/13.3 175/12.8
MIN 306/01.5 071/01.0 191/01.0 203/01.5 194/01.0 210/01.1 241/01.2 019/01.0 017/01.7 165/02.2 054/02.6 077/03.1 036/03.0
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for August, 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
1 056/03.7 052/03.9 016/04.9 008/06.2 354/06.9 355/06.0 324/02.9 250/02.9 236/03.5 236/03.6 241/03.1 320/03.2 354/06.9 201/01.2
2 015/05.8 339/06.6 308/05.9 330/04.5 351/05.3 346/04.5 281/02.1 263/02.8 254/02.7 245/03.2 246/02.8 296/03.7 339/06.6 357/01.3
3 152/05.2 146/05.4 217/02.8 230/06.4 210/06.3 210/06.6 231/03.5 260/02.7 228/02.7 217/04.0 211/04.2 200/05.2 188/07.3 260/02.7
4 081/03.3 109/03.0 034/03.1 038/03.4 025/04.7 011/04.0 291/02.5 246/02.8 248/03.2 225/04.8 225/04.5 174/04.2 162/07.2 291/02.5
5 143/03.5 112/08.6 321/03.1 045/02.4 227/01.8 141/02.6 213/04.3 209/06.0 188/09.5 180/07.2 215/04.1 188/04.4 188/09.5 039/01.5
6 128/03.9 357/03.0 019/04.3 019/04.9 015/04.6 003/03.1 235/03.2 234/03.7 234/04.3 206/05.7 222/04.5 197/04.2 173/07.3 032/01.4
7 028/04.6 036/05.3 024/06.5 330/05.7 006/05.7 011/03.9 283/02.6 236/03.7 238/03.5 252/03.1 232/02.6 293/03.4 024/06.5 241/01.2
8 035/03.8 053/03.3 049/03.6 044/03.8 004/05.1 005/04.1 284/02.1 236/04.0 230/04.3 198/05.3 213/04.6 172/03.1 198/05.3 210/01.1
9 156/06.0 208/05.5 209/04.8 243/03.6 027/04.1 348/04.0 225/05.3 223/03.0 208/03.0 211/04.7 196/05.4 191/05.8 189/08.2 223/03.0
10 150/03.7 109/03.2 073/01.8 200/04.0 173/05.6 186/06.0 204/06.1 196/06.8 192/07.8 197/06.8 223/02.8 180/05.8 161/08.8 073/01.8
11 150/05.2 144/05.0 100/03.8 096/03.3 110/02.7 138/02.7 183/08.8 176/09.3 182/11.3 173/10.0 177/10.2 173/05.5 182/11.3 216/02.5
12 200/08.2 250/05.0 298/03.0 101/02.6 239/02.5 186/05.4 185/05.5 190/07.0 196/07.6 180/13.3 183/15.2 184/08.2 183/15.2 239/02.5
13 160/09.2 161/09.4 159/07.2 188/06.4 214/04.4 251/03.4 227/04.5 216/05.2 209/04.1 228/02.8 223/05.2 183/06.2 179/14.6 228/02.8
14 045/04.2 084/02.9 058/02.2 105/02.4 087/01.2 236/01.6 228/03.9 231/04.1 226/04.4 225/04.3 225/04.2 184/04.3 170/07.7 087/01.2
15 147/06.9 161/08.2 161/07.5 174/06.6 179/05.6 196/04.4 223/05.8 220/06.0 198/06.6 179/06.8 204/07.0 184/06.3 174/09.8 208/02.8
16 149/05.5 175/07.1 172/06.9 162/06.6 178/06.2 198/04.6 218/04.2 203/04.8 195/05.8 182/06.1 185/08.3 188/04.9 185/08.3 118/01.3
17 019/01.8 153/03.3 195/02.7 181/03.9 194/04.0 205/04.8 202/04.8 184/04.9 181/04.8 267/05.8 073/03.2 189/05.4 172/09.6 019/01.8
18 183/04.2 181/05.4 183/06.7 181/12.2 188/07.9 221/03.8 182/12.3 181/07.9 205/06.1 215/05.8 189/02.8 185/06.4 182/12.3 189/02.8
19 155/06.9 146/05.9 140/04.3 159/04.7 203/05.0 200/04.5 190/06.1 182/05.1 188/06.3 191/08.9 188/09.4 180/06.2 188/09.4 187/03.8
20 174/06.3 184/06.7 197/05.9 192/05.1 186/04.2 221/04.1 221/05.2 220/05.5 213/05.9 211/05.4 201/05.8 186/06.6 188/09.5 221/04.1
21 198/06.9 031/05.4 023/07.0 026/06.2 019/06.6 356/05.2 321/02.8 280/02.3 236/03.9 227/04.3 225/05.0 194/06.2 190/08.2 280/02.3
22 153/09.0 147/09.2 153/08.7 153/07.7 153/07.5 161/06.4 178/06.4 178/06.6 178/06.9 181/07.1 187/10.0 170/07.8 165/10.2 171/03.7
23 172/12.1 178/15.7 180/12.4 181/11.0 177/09.1 173/07.6 176/08.7 185/09.3 191/08.9 188/11.0 189/13.1 183/09.6 178/15.7 199/03.5
24 175/15.7 179/15.3 188/14.4 185/10.3 187/07.7 191/05.7 001/08.1 356/06.8 336/03.0 295/02.1 246/02.5 186/09.7 175/15.7 295/02.1
25 200/05.9 189/05.9 021/06.2 007/06.5 327/05.7 007/03.6 053/02.5 345/03.3 029/02.3 346/02.6 194/01.5 215/04.2 182/09.9 194/01.5
26 071/03.4 043/03.8 060/03.5 047/03.1 037/02.7 343/02.7 217/03.2 223/02.8 219/02.7 224/03.5 221/02.4 101/02.4 043/03.8 191/01.0
27 150/06.5 151/07.3 152/05.9 150/04.9 167/04.8 208/03.5 225/04.8 223/05.2 222/06.1 224/04.4 185/05.4 190/04.6 151/07.3 246/01.8
28 033/04.6 037/04.6 046/03.9 025/03.7 013/03.7 269/02.1 219/01.6 182/02.4 212/01.7 182/01.8 034/01.8 142/04.8 187/08.5 219/01.6
29 035/04.2 040/04.7 038/04.1 029/04.6 017/04.5 304/03.0 227/03.0 259/02.8 247/01.9 235/02.8 236/03.0 131/02.9 040/04.7 129/01.5
30 066/03.3 061/02.9 034/03.0 027/03.0 032/02.6 286/02.9 222/04.5 225/03.7 224/02.9 237/02.1 237/02.0 246/02.8 222/04.5 019/01.0
31 085/02.8 085/03.1 074/03.3 056/02.8 035/02.7 246/02.8 223/03.9 224/03.4 226/04.1 227/04.5 227/04.3 181/03.2 227/04.5 109/01.3
MEAN 125/05.7 121/05.9 092/05.3 102/05.2 114/04.9 243/04.2 227/04.7 222/04.7 216/04.9 216/05.3 210/05.2 186/05.2
MAX 175/15.7 178/15.7 188/14.4 181/12.2 177/09.1 173/07.6 182/12.3 176/09.3 182/11.3 180/13.3 183/15.2 175/15.7
MIN 019/01.8 084/02.9 073/01.8 105/02.4 087/01.2 236/01.6 219/01.6 280/02.3 212/01.7 182/01.8 194/01.5 191/01.0
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =741 DATA RECOVERY RATE = 99.6%
MONTHLY MEAN = 186/05.2 MAXIMUM WIND SPEED =15.7 AT 178 DEGREES DATE OF OCCURRENCE = 8/23 AT 1500
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for September, 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
1 227/03.3 235/02.2 215/03.6 203/02.8 233/02.2 215/02.5 198/01.2 016/01.2 037/01.5 027/02.9 154/05.1 136/03.9 138/03.3
2 215/04.9 194/06.3 182/06.1 188/06.6 185/06.6 053/02.6 175/04.2 173/06.6 171/08.4 173/07.9 165/07.9 151/07.3 161/06.3
3 063/02.1 234/04.2 193/08.9 191/09.7 204/05.0 201/05.1 192/07.5 191/07.5 187/06.7 170/08.0 165/08.5 167/07.6 168/08.7
4 217/03.6 312/08.6 332/03.0 220/03.7 221/03.7 216/03.1 287/03.1 077/01.3 069/02.0 075/02.4 066/03.1 060/03.6 026/04.9
5 314/02.9 325/04.4 338/04.0 332/02.8 331/02.9 283/03.7 169/01.7 145/01.1 089/02.1 055/01.9 064/02.3 059/02.6 057/02.9
6 223/04.0 220/04.0 224/05.0 222/05.1 219/04.8 218/04.6 203/02.9 150/02.5 150/03.7 150/04.4 153/04.9 148/04.4 109/04.0
7 224/03.7 229/02.8 233/03.1 230/03.6 231/03.4 229/04.2 237/02.3 134/01.5 176/05.9 171/06.7 166/06.0 157/05.8 155/04.6
8 224/03.5 223/03.9 227/04.1 224/05.3 216/05.3 247/02.8 195/03.6 208/03.7 191/04.7 179/06.3 173/06.2 176/06.7 169/06.7
9 205/03.1 203/03.3 222/04.3 221/03.4 201/03.6 192/04.5 192/03.7 183/05.3 168/07.0 171/07.8 158/06.3 138/06.0 107/04.9
10 188/06.2 194/06.5 178/07.1 202/04.2 189/06.1 191/08.1 188/09.6 181/09.2 172/09.4 172/09.1 172/09.4 168/08.7 171/07.0
11 188/06.1 174/08.1 180/07.9 185/08.6 184/07.3 181/06.5 189/05.7 169/07.3 157/06.8 160/06.4 171/10.6 174/11.0 175/11.0
12 310/08.5 328/06.7 332/06.5 337/05.9 323/08.0 324/07.4 324/04.7 304/06.3 298/04.3 322/03.0 336/05.0 322/05.8 350/03.1
13 169/02.0 222/02.5 216/02.1 240/02.7 226/04.0 225/02.8 220/03.9 147/01.8 085/02.7 063/02.7 068/03.6 069/03.3 060/03.0
14 223/01.7 212/02.8 213/03.1 189/04.1 190/06.0 179/06.4 170/03.6 349/01.6 141/03.0 156/05.5 169/06.2 173/05.0 149/04.6
15 200/05.8 181/06.1 180/06.2 194/06.0 189/06.7 180/06.3 183/08.0 174/09.7 163/09.5 160/09.2 151/07.9 146/07.2 151/08.4
16 188/05.6 179/05.4 175/05.1 175/05.2 173/03.6 186/05.2 186/05.6 185/06.5 173/06.9 164/08.3 163/10.9 169/09.4 168/09.1
17 135/02.4 125/03.6 102/02.2 130/01.6 175/03.5 145/01.3 264/01.1 208/05.7 165/05.1 165/05.4 164/04.8 211/04.0 240/04.3
18 236/02.2 232/03.9 224/03.7 222/04.4 225/04.0 224/04.1 210/04.6 219/03.0 204/01.0 109/01.8 073/02.8 146/04.7 140/04.3
19 234/01.4 247/01.9 005/01.4 259/02.0 289/01.2 283/01.7 216/01.5 085/00.8 061/01.6 062/02.0 022/02.1 038/02.9 031/02.7
20 236/01.6 239/03.2 235/02.6 342/01.6 196/01.3 264/02.0 228/03.0 317/00.8 012/01.5 038/02.7 035/02.9 037/03.0 053/03.9
21 350/01.8 337/02.7 345/01.8 343/02.9 330/02.4 323/02.3 311/02.5 015/02.2 058/01.8 043/02.8 036/03.2 047/03.9 049/05.0
22 217/02.8 126/01.1 200/02.5 157/00.7 212/01.6 222/01.8 170/01.0 110/01.6 061/01.4 089/02.0 050/02.5 041/02.7 045/02.7
23 230/03.8 236/03.2 358/01.5 261/01.5 204/02.0 196/01.8 220/03.2 044/00.8 076/02.1 059/02.3 051/02.8 058/03.4 066/03.0
24 279/02.0 294/01.6 054/01.6 252/01.5 287/01.9 290/01.7 300/01.4 039/01.2 042/01.4 053/02.3 050/02.6 056/02.6 053/02.9
25 225/04.9 221/04.7 214/03.5 212/03.1 216/01.5 201/03.4 187/06.1 180/07.3 172/08.4 178/07.8 178/07.1 164/08.3 162/08.6
26 200/05.5 195/05.3 197/05.3 184/07.6 182/07.6 179/06.4 193/05.3 202/04.4 183/04.3 160/04.7 158/05.5 161/05.7 154/06.8
27 231/03.5 226/03.1 252/02.5 209/02.0 222/03.0 228/01.9 230/02.9 187/01.9 042/01.5 061/02.0 044/02.1 049/02.7 049/02.7
28 229/03.8 225/03.4 225/04.4 242/02.9 234/01.3 223/02.1 220/02.4 167/01.2 144/02.9 143/03.5 167/06.9 170/08.4 160/07.7
29 210/06.3 208/06.1 183/06.9 185/07.7 190/06.7 196/06.3 215/04.9 189/06.7 191/06.6 174/06.9 167/08.0 155/07.4 156/07.7
30 152/02.3 169/01.6 069/01.3 054/01.9 056/01.2 313/01.6 227/01.1 007/01.3 045/02.5 047/02.6 047/03.0 034/03.8 028/04.2
MEAN 218/03.7 221/04.1 216/04.0 217/04.0 216/03.9 221/03.8 212/03.7 162/03.7 131/04.2 121/04.7 121/05.3 123/05.4 115/05.3
MAX 310/08.5 312/08.6 193/08.9 191/09.7 323/08.0 191/08.1 188/09.6 174/09.7 163/09.5 160/09.2 163/10.9 174/11.0 175/11.0
MIN 234/01.4 126/01.1 069/01.3 157/00.7 289/01.2 145/01.3 170/01.0 085/00.8 204/01.0 109/01.8 044/02.1 056/02.6 045/02.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for September, 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
1 093/04.1 062/04.6 041/03.6 080/02.1 064/02.0 304/02.3 224/04.0 222/03.8 222/03.8 223/03.7 224/04.3 188/03.1 154/05.1 016/01.2
2 150/05.2 150/05.5 144/05.7 142/04.4 066/03.9 206/04.6 205/06.6 190/09.3 188/08.8 187/08.2 001/03.4 170/06.1 190/09.3 053/02.6
3 173/07.2 197/04.0 228/08.8 295/01.7 272/02.5 272/08.6 226/04.8 189/08.3 190/07.5 192/05.0 185/03.8 199/06.3 191/09.7 295/01.7
4 026/05.0 032/05.6 039/05.5 335/05.4 306/05.5 329/06.3 337/06.1 335/06.4 333/05.6 336/05.4 324/03.4 350/04.4 312/08.6 077/01.3
5 070/02.9 089/02.6 037/02.3 061/03.0 018/03.9 344/02.6 307/02.3 281/01.8 273/02.1 236/02.6 234/02.9 004/02.7 325/04.4 145/01.1
6 079/04.0 060/03.5 076/02.7 054/02.8 004/02.6 216/01.5 249/02.2 224/02.6 223/03.1 234/03.2 226/03.7 188/03.6 222/05.1 216/01.5
7 144/03.5 085/03.7 050/03.3 094/03.0 171/03.2 271/01.4 241/02.4 220/03.1 231/03.0 228/03.6 226/04.2 198/03.7 171/06.7 271/01.4
8 161/04.8 216/04.2 194/02.5 041/04.0 355/04.2 311/07.0 264/03.4 070/02.2 252/02.5 226/03.6 225/04.1 212/04.4 311/07.0 070/02.2
9 174/05.3 338/04.8 106/02.9 156/02.7 197/04.3 207/05.3 192/06.3 168/06.8 186/07.8 179/07.3 188/05.4 181/05.1 186/07.8 156/02.7
10 158/06.9 163/07.5 172/07.7 176/05.8 198/03.1 226/03.8 241/04.7 222/04.9 205/03.9 200/04.8 195/05.2 188/06.6 188/09.6 198/03.1
11 176/11.1 168/10.4 174/09.9 182/09.2 183/09.0 183/09.9 194/10.4 197/09.8 207/09.3 284/10.5 307/08.6 184/08.8 176/11.1 189/05.7
12 017/04.3 069/04.3 040/04.5 049/04.7 005/06.7 351/05.3 007/01.6 292/01.6 232/02.3 252/02.0 285/02.2 332/04.8 310/08.5 007/01.6
13 097/03.1 076/03.0 097/03.0 016/03.5 357/02.6 230/02.8 224/04.0 225/03.8 211/02.9 217/02.4 212/02.2 176/02.9 224/04.0 147/01.8
14 165/05.0 153/06.0 148/05.5 151/06.1 171/04.6 013/01.6 229/02.7 198/02.4 213/03.7 202/06.0 223/06.1 183/04.3 179/06.4 013/01.6
15 148/08.3 179/08.6 170/07.8 188/05.6 094/02.9 213/03.3 175/05.0 205/03.0 204/04.2 202/05.0 177/04.7 176/06.5 174/09.7 094/02.9
16 187/08.9 160/08.1 116/04.3 027/03.0 335/02.6 253/01.8 220/02.7 196/02.4 142/02.5 195/03.2 177/02.9 178/05.4 163/10.9 253/01.8
17 054/03.6 336/03.6 024/04.0 023/02.0 043/01.2 116/01.2 221/02.7 227/03.9 218/04.8 220/03.7 230/03.0 172/03.3 208/05.7 264/01.1
18 011/03.6 008/03.2 016/03.6 004/04.6 360/04.9 235/02.2 207/01.3 231/01.8 252/02.3 240/02.7 223/02.2 224/03.2 360/04.9 204/01.0
19 042/03.0 031/03.3 025/03.7 022/03.5 020/03.4 356/02.1 327/02.3 300/01.9 256/02.9 267/02.5 269/02.0 343/02.2 025/03.7 085/00.8
20 021/05.7 016/06.7 003/06.2 353/05.6 310/05.3 308/02.3 284/02.2 293/02.3 252/02.9 263/02.7 286/03.1 313/03.1 016/06.7 317/00.8
21 037/06.1 023/07.1 017/06.1 341/05.2 319/04.3 331/03.8 280/02.6 276/02.8 285/02.4 235/02.2 354/01.7 349/03.3 023/07.1 354/01.7
22 028/03.1 035/03.4 031/03.8 028/03.9 018/04.0 205/01.6 179/01.6 221/01.8 243/02.8 233/03.7 232/03.5 140/02.4 018/04.0 157/00.7
23 047/03.5 026/03.6 024/03.4 042/02.1 101/01.7 185/02.1 332/01.1 311/01.9 319/01.6 302/01.8 286/02.6 006/02.4 230/03.8 044/00.8
24 026/02.9 025/03.0 023/03.3 023/02.7 001/01.9 254/02.0 232/03.1 226/03.5 224/04.4 224/04.0 226/04.3 335/02.5 224/04.4 039/01.2
25 155/07.2 143/07.3 149/06.1 168/05.5 188/04.0 212/05.0 215/05.5 195/04.8 198/04.7 212/05.3 219/05.6 190/05.7 162/08.6 216/01.5
26 142/04.8 015/05.9 007/06.2 002/06.0 341/05.4 324/01.9 236/02.8 237/02.8 239/03.2 236/02.8 232/03.8 200/05.0 182/07.6 324/01.9
27 056/02.9 037/03.7 038/03.9 019/04.2 014/02.9 312/01.5 274/02.6 249/02.8 242/03.5 235/03.4 229/04.1 276/02.8 019/04.2 312/01.5
28 156/06.6 156/06.3 158/06.1 161/04.8 191/04.2 222/05.1 221/05.4 222/05.6 210/05.3 192/05.7 202/06.3 194/04.7 170/08.4 167/01.2
29 159/04.0 197/03.8 221/05.3 208/03.6 198/04.2 192/08.2 203/06.9 193/06.8 247/05.7 290/06.8 320/05.0 198/06.2 192/08.2 208/03.6
30 020/04.0 038/03.8 035/04.0 030/03.7 023/02.9 318/01.3 312/02.3 299/01.8 312/01.8 294/01.7 357/01.9 015/02.4 028/04.2 227/01.1
MEAN 100/05.0 074/05.0 070/04.9 049/04.2 008/03.8 262/03.6 242/03.7 232/03.9 232/04.0 232/04.2 240/03.9 199/04.3
MAX 176/11.1 168/10.4 174/09.9 182/09.2 183/09.0 183/09.9 194/10.4 197/09.8 207/09.3 284/10.5 307/08.6 176/11.1
MIN 056/02.9 089/02.6 037/02.3 295/01.7 043/01.2 116/01.2 332/01.1 292/01.6 319/01.6 294/01.7 354/01.7 157/00.7
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 199/04.3 MAXIMUM WIND SPEED =11.1 AT 176 DEGREES DATE OF OCCURRENCE = 9/11 AT 1400
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for July, 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 0.9 1.2 3.9 0.0 0.0 6.5 5.0
NNE 11.25 - 33.75 0.4 2.0 4.6 1.6 0.0 0.0 8.6 3.9
NE 33.75 - 56.25 0.4 3.4 4.6 0.1 0.0 0.0 8.5 3.3
ENE 56.25 - 78.75 0.4 1.3 4.4 0.0 0.0 0.0 6.2 3.4
E 78.75 - 101.25 0.3 1.6 2.6 0.3 0.0 0.0 4.7 3.4
ESE 101.25 - 123.75 0.0 0.3 1.1 0.1 0.0 0.0 1.5 3.8
SE 123.75 - 146.25 0.0 0.9 0.9 0.8 0.0 0.0 2.7 3.8
SSE 146.25 - 168.75 0.0 0.7 1.6 1.9 0.1 0.0 4.3 5.0
S 168.75 - 191.25 0.1 1.2 1.3 1.9 1.1 0.0 5.6 5.4
SSW 191.25 - 213.75 0.1 1.9 3.1 2.2 0.0 0.0 7.3 4.2
SW 213.75 - 236.25 0.1 2.6 12.2 1.5 0.1 0.0 16.5 4.0
WSW 236.25 - 258.75 0.3 3.4 2.3 0.3 0.0 0.0 6.2 3.0
W 258.75 - 281.25 0.1 3.2 1.1 0.1 0.0 0.0 4.6 2.8
WNW 281.25 - 303.75 0.0 3.5 0.9 0.4 0.5 0.3 5.6 4.1
NW 303.75 - 326.25 0.1 2.2 1.9 2.0 0.3 0.0 6.5 4.5
NNW 326.25 - 348.75 0.4 0.8 1.9 1.3 0.3 0.1 4.8 4.8
0.0
3.2 29.8 45.7 18.4 2.4 0.4 100.0 4.0
TOTAL NUMBER OF OBSERVATIONS =744
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for August, 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 0.1 0.1 0.9 1.2 0.0 0.0 2.4 4.9
NNE 11.25 - 33.75 0.3 0.9 1.9 0.9 0.0 0.0 4.0 4.1
NE 33.75 - 56.25 0.3 2.3 2.7 0.1 0.0 0.0 5.4 3.3
ENE 56.25 - 78.75 0.3 1.5 1.6 0.0 0.0 0.0 3.4 2.8
E 78.75 - 101.25 0.3 0.7 0.8 0.0 0.0 0.0 1.8 3.0
ESE 101.25 - 123.75 0.4 0.9 0.1 0.0 0.1 0.0 1.6 2.9
SE 123.75 - 146.25 0.1 0.5 0.8 0.8 0.0 0.0 2.3 4.4
SSE 146.25 - 168.75 0.1 0.8 1.8 8.8 2.3 0.7 14.4 6.7
S 168.75 - 191.25 0.1 0.7 3.4 13.2 5.7 3.0 26.0 7.6
SSW 191.25 - 213.75 0.7 2.0 4.7 5.8 0.1 0.0 13.4 4.7
SW 213.75 - 236.25 0.0 5.3 8.9 1.6 0.0 0.0 15.8 3.7
WSW 236.25 - 258.75 0.1 2.7 1.6 0.0 0.0 0.0 4.5 2.9
W 258.75 - 281.25 0.1 1.2 0.1 0.1 0.0 0.0 1.6 2.6
WNW 281.25 - 303.75 0.0 1.1 0.1 0.0 0.0 0.0 1.2 2.6
NW 303.75 - 326.25 0.1 0.4 0.1 0.1 0.0 0.0 0.8 3.2
NNW 326.25 - 348.75 0.0 0.4 0.5 0.4 0.0 0.0 1.3 4.3
0.0
3.1 21.6 30.2 33.2 8.2 3.6 100.0 5.2
TOTAL NUMBER OF OBSERVATIONS =741
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =99.6%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for September, 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 1.2 0.8 0.8 0.0 0.0 3.3 3.5
NNE 11.25 - 33.75 0.3 1.8 2.9 0.8 0.0 0.0 5.8 3.7
NE 33.75 - 56.25 1.0 3.9 2.4 0.3 0.0 0.0 7.5 2.9
ENE 56.25 - 78.75 0.4 3.1 1.2 0.0 0.0 0.0 4.7 2.7
E 78.75 - 101.25 0.1 1.4 0.4 0.0 0.0 0.0 1.9 2.7
ESE 101.25 - 123.75 0.1 0.6 0.4 0.0 0.0 0.0 1.1 2.9
SE 123.75 - 146.25 0.6 0.7 1.2 0.6 0.0 0.0 3.1 3.6
SSE 146.25 - 168.75 0.3 0.7 1.9 5.1 1.7 0.1 9.9 6.2
S 168.75 - 191.25 0.1 0.8 2.2 9.0 2.9 0.4 15.6 6.6
SSW 191.25 - 213.75 0.6 2.2 4.6 3.6 0.7 0.0 11.7 4.6
SW 213.75 - 236.25 0.8 5.3 10.4 1.1 0.1 0.0 17.8 3.5
WSW 236.25 - 258.75 0.1 2.8 0.7 0.1 0.0 0.0 3.8 2.8
W 258.75 - 281.25 0.4 1.7 0.1 0.0 0.1 0.0 2.4 2.6
WNW 281.25 - 303.75 0.3 2.2 0.4 0.3 0.1 0.0 3.3 2.9
NW 303.75 - 326.25 0.4 1.8 0.7 0.8 0.4 0.0 4.2 4.0
NNW 326.25 - 348.75 0.1 1.7 0.7 1.5 0.0 0.0 4.0 4.0
0.0
6.1 31.8 31.2 24.2 6.1 0.6 100.0 4.3
TOTAL NUMBER OF OBSERVATIONS =720
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott HiCountry
Joint Frequency Distribution for July - September 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 0.3 0.8 1.0 2.0 0.0 0.0 4.1 4.6
NNE 11.25 - 33.75 0.3 1.6 3.1 1.1 0.0 0.0 6.2 3.9
NE 33.75 - 56.25 0.5 3.2 3.2 0.2 0.0 0.0 7.1 3.2
ENE 56.25 - 78.75 0.4 2.0 2.4 0.0 0.0 0.0 4.8 3.0
E 78.75 - 101.25 0.2 1.2 1.3 0.1 0.0 0.0 2.8 3.1
ESE 101.25 - 123.75 0.2 0.6 0.5 0.0 0.0 0.0 1.4 3.2
SE 123.75 - 146.25 0.2 0.7 1.0 0.7 0.0 0.0 2.7 3.9
SSE 146.25 - 168.75 0.1 0.7 1.8 5.3 1.4 0.3 9.5 6.2
S 168.75 - 191.25 0.1 0.9 2.3 8.0 3.2 1.1 15.7 7.0
SSW 191.25 - 213.75 0.5 2.0 4.1 3.9 0.3 0.0 10.7 4.6
SW 213.75 - 236.25 0.3 4.4 10.5 1.4 0.1 0.0 16.7 3.7
WSW 236.25 - 258.75 0.2 2.9 1.5 0.1 0.0 0.0 4.8 2.9
W 258.75 - 281.25 0.2 2.0 0.5 0.1 0.0 0.0 2.9 2.7
WNW 281.25 - 303.75 0.1 2.3 0.5 0.2 0.2 0.1 3.4 3.5
NW 303.75 - 326.25 0.2 1.5 0.9 1.0 0.2 0.0 3.8 4.2
NNW 326.25 - 348.75 0.2 1.0 1.0 1.1 0.1 0.0 3.4 4.4
0.0
4.1 27.7 35.8 25.3 5.6 1.5 100.0 4.5
TOTAL NUMBER OF OBSERVATIONS =2205
POSSIBLE NUMBER OF OBSERVATIONS =2208
DATA RECOVERY =99.9%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for JULY, 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 14.7 9.4 4.9 11.4 15.2 14.2 14.9 9.1 6.8 7.3 8.7 12.5 10.7 11.4 10.1 8.4 8.3 5.3 4.9 4.4 17.9 17.8 17.0 14.1 10.8 17.9 4.4
2 5.2 6.3 6.1 5.6 4.3 3.9 3.0 5.3 5.3 8.5 8.7 9.7 10.3 9.1 8.6 8.2 10.1 9.1 9.0 4.3 5.3 5.7 6.4 5.2 6.8 10.3 3.0
3 6.1 6.2 6.6 7.0 7.2 6.2 3.7 4.7 5.3 6.3 8.4 9.0 10.0 11.7 13.6 11.0 13.3 11.3 9.8 7.9 7.3 7.5 8.9 7.6 8.2 13.6 3.7
4 10.3 12.8 10.7 7.2 5.6 5.0 3.1 4.3 6.1 6.2 7.2 7.5 8.2 10.4 10.4 14.7 11.1 11.0 8.2 5.3 4.9 5.3 5.1 4.9 7.7 14.7 3.1
5 4.6 4.9 4.9 3.7 3.3 5.1 4.2 4.8 4.6 6.2 8.1 8.4 9.5 8.9 11.1 11.1 13.3 13.4 11.1 5.5 5.7 5.1 4.8 6.0 7.0 13.4 3.3
6 5.6 6.4 6.7 7.3 9.3 4.8 2.6 4.7 5.2 7.0 6.5 9.1 10.2 10.7 10.3 11.9 12.8 11.1 7.7 6.5 5.2 5.9 5.4 5.5 7.4 12.8 2.6
7 6.9 8.3 8.4 11.5 11.7 4.9 3.5 5.0 10.7 10.3 10.8 13.5 17.1 17.4 16.8 13.0 14.6 12.6 11.8 6.8 6.1 5.0 5.7 6.8 10.0 17.4 3.5
8 4.2 5.9 8.1 5.1 4.8 3.9 5.2 3.6 5.1 5.5 6.5 7.0 9.2 7.9 10.5 10.5 11.5 10.3 9.1 6.2 5.7 4.7 5.5 4.7 6.7 11.5 3.6
9 5.7 5.4 5.7 5.9 6.3 6.1 4.1 3.3 4.3 5.2 6.7 8.0 7.7 8.2 8.9 11.5 11.7 10.5 9.5 7.2 5.3 3.9 5.5 7.6 6.8 11.7 3.3
10 7.0 6.5 6.7 7.0 5.4 4.7 3.6 3.4 5.9 6.5 5.7 7.4 8.4 8.6 8.4 10.4 10.1 10.7 8.5 5.9 5.9 5.9 6.1 5.7 6.9 10.7 3.4
11 6.7 6.5 7.5 7.3 7.3 6.0 5.4 5.1 8.8 10.4 9.9 9.1 8.9 8.6 13.1 12.8 13.5 11.8 9.9 5.3 6.7 5.6 6.1 5.2 8.2 13.5 5.1
12 6.3 4.5 6.6 5.6 4.4 5.2 3.2 3.7 5.9 5.9 6.3 6.2 9.1 13.1 12.4 11.1 11.1 9.4 8.5 5.8 4.1 6.7 6.2 6.8 7.0 13.1 3.2
13 5.7 6.1 5.9 6.7 6.1 8.2 8.4 8.9 8.7 8.3 9.6 10.6 9.3 13.2 13.2 10.5 7.7 12.1 8.7 7.5 29.3 11.6 8.7 9.6 9.8 29.3 5.7
14 4.6 4.9 6.4 6.1 17.5 6.0 6.5 8.4 8.7 8.9 13.9 13.3 11.3 11.6 7.7 10.5 6.1 6.5 6.5 4.5 4.5 5.9 25.1 18.1 9.3 25.1 4.5
15 8.7 3.6 6.1 3.1 3.3 4.4 5.1 3.8 5.1 8.6 8.6 7.1 8.7 8.0 7.7 6.9 8.8 10.9 9.3 5.7 5.4 6.9 6.3 6.1 6.6 10.9 3.1
16 6.1 4.1 6.3 6.1 5.7 3.2 4.2 5.3 4.8 5.7 6.5 7.1 6.0 9.5 9.9 8.9 12.1 11.3 9.8 5.9 5.8 5.0 5.1 6.8 6.7 12.1 3.2
17 6.6 5.3 4.7 5.5 7.4 6.5 5.0 4.9 5.1 6.3 7.5 8.4 9.0 6.6 7.7 7.9 6.9 5.5 5.7 21.6 14.5 8.4 7.7 7.8 7.6 21.6 4.7
18 5.1 5.8 6.3 6.0 6.1 7.9 9.3 3.6 5.9 5.7 7.8 8.2 9.9 7.7 7.7 8.1 16.1 20.6 18.1 14.3 11.7 7.2 5.5 6.3 8.8 20.6 3.6
19 6.9 7.8 8.1 7.0 5.5 2.9 5.3 3.0 5.5 7.2 6.3 7.8 7.2 9.1 8.7 9.7 12.2 11.2 12.8 8.9 6.1 6.1 4.0 4.7 7.3 12.8 2.9
20 4.4 4.2 6.1 5.0 5.0 3.7 2.5 3.8 4.9 5.9 6.7 7.6 7.8 9.4 10.6 10.8 10.7 10.0 10.1 7.1 6.0 5.7 5.7 6.0 6.7 10.8 2.5
21 6.4 6.1 7.5 3.8 5.9 5.1 3.0 2.9 4.5 5.3 5.7 6.5 9.6 9.7 9.7 9.9 11.7 10.2 9.6 7.7 7.2 5.1 5.6 5.2 6.8 11.7 2.9
22 6.6 7.1 7.9 6.9 6.6 6.0 6.4 6.6 9.2 8.4 7.9 7.3 10.1 8.3 10.2 10.3 11.3 10.1 8.9 6.3 5.5 5.4 4.5 5.8 7.6 11.3 4.5
23 4.9 3.8 5.5 5.7 6.0 5.7 5.7 3.9 6.0 7.7 7.3 7.7 6.0 6.2 7.9 16.1 8.2 6.8 6.4 5.1 6.7 5.8 5.8 6.3 6.6 16.1 3.8
24 6.1 5.9 6.3 7.1 5.7 4.3 6.9 8.5 6.2 6.4 6.8 8.5 8.9 9.3 9.1 9.4 5.8 5.3 5.1 5.5 15.9 12.3 9.7 3.6 7.4 15.9 3.6
25 3.9 16.3 16.5 15.8 9.2 10.2 6.1 7.3 3.9 4.7 7.2 6.9 7.5 8.4 9.9 8.8 8.1 6.1 5.1 5.4 19.3 20.9 13.8 15.7 9.9 20.9 3.9
26 9.1 12.8 11.3 11.0 8.8 6.6 12.4 15.0 10.7 9.9 8.6 8.1 7.2 10.2 9.9 9.1 8.1 6.5 4.9 4.0 5.5 6.8 6.7 12.5 9.0 15.0 4.0
27 8.4 18.1 16.5 9.0 5.5 6.7 3.9 4.1 6.6 5.5 5.9 6.7 10.7 12.9 11.9 11.3 10.8 22.0 15.1 6.8 6.9 6.1 23.6 4.7 10.0 23.6 3.9
28 5.6 4.9 4.8 5.6 5.3 5.9 3.7 6.5 8.7 9.7 10.1 10.5 10.6 11.4 13.5 8.4 9.5 7.1 8.0 5.7 4.9 6.5 6.7 9.8 7.6 13.5 3.7
29 10.3 11.8 12.7 10.4 9.9 10.2 12.3 13.9 13.6 11.9 14.3 15.9 15.7 14.9 15.9 13.1 12.4 11.7 6.7 5.7 5.3 6.7 10.3 10.5 11.5 15.9 5.3
30 10.3 10.8 13.5 13.1 10.9 9.3 7.9 8.8 8.7 8.6 8.3 9.9 11.8 9.9 12.1 11.8 11.3 9.8 8.5 5.5 5.7 6.1 4.9 4.0 9.2 13.5 4.0
31 4.4 5.2 4.7 4.1 3.4 3.2 3.1 2.7 4.9 5.3 7.5 7.3 9.3 9.8 9.8 9.6 9.9 8.9 7.5 5.3 5.6 5.1 5.6 5.5 6.2 9.9 2.7
MEAN 6.7 7.3 7.8 7.2 7.1 6.0 5.6 5.8 6.7 7.3 8.1 8.8 9.5 10.1 10.6 10.5 10.6 10.3 8.9 6.8 8.1 7.2 8.0 7.4 8.0
MAX 14.7 18.1 16.5 15.8 17.5 14.2 14.9 15.0 13.6 11.9 14.3 15.9 17.1 17.4 16.8 16.1 16.1 22.0 18.1 21.6 29.3 20.9 25.1 18.1 29.3
MIN 3.9 3.6 4.7 3.1 3.3 2.9 2.5 2.7 3.9 4.7 5.7 6.2 6.0 6.2 7.7 6.9 5.8 5.3 4.9 4.0 4.1 3.9 4.0 3.6 2.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =8.0 mps
MAXIMUM WIND GUST =29.3 mps DATE OF OCCURRENCE =7/13 AT 2100 MAXIMUM DAILY MEAN =11.5 mps DATE OF OCCURRENCE =7/29
MINIMUM WIND GUST =2.5 mps DATE OF OCCURRENCE =7/20 AT 0700 MINUMUM DAILY MEAN =6.2 mps DATE OF OCCURRENCE =7/31
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for AUGUST, 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 3.9 5.1 5.8 4.4 4.9 5.1 3.2 3.0 4.5 5.2 5.6 6.3 7.2 7.5 9.4 9.6 10.5 11.3 10.1 6.4 6.8 5.7 5.2 5.4 6.3 11.3 3.0
2 5.3 5.9 6.1 6.3 6.0 5.3 2.6 2.9 ---------9.1 10.5 13.5 12.8 12.1 8.9 9.9 8.2 4.3 5.2 5.8 5.3 4.8 7.2 13.5 2.6
3 5.6 6.2 6.6 9.5 9.3 11.3 11.3 10.5 10.3 11.3 11.3 12.1 11.5 11.5 10.6 9.5 15.1 13.2 15.9 7.9 7.5 5.3 5.5 7.3 9.8 15.9 5.3
4 5.9 6.1 12.0 6.0 8.8 11.7 9.3 9.6 7.5 8.0 8.8 8.3 7.4 7.6 8.0 7.3 6.7 9.1 7.0 5.9 4.6 6.3 6.4 6.3 7.7 12.0 4.6
5 4.6 4.9 5.8 5.1 6.0 5.4 4.3 3.4 6.5 10.1 11.8 10.8 11.0 10.3 22.8 10.9 6.9 3.8 5.9 7.0 10.3 15.4 13.9 7.9 8.5 22.8 3.4
6 6.4 5.8 3.9 5.1 5.5 4.8 6.0 9.1 12.1 12.5 10.8 10.8 11.1 10.5 9.0 10.0 8.9 8.5 5.8 5.2 5.3 6.5 9.5 9.9 8.0 12.5 3.9
7 7.8 8.9 5.9 4.9 3.1 3.8 3.5 3.3 4.6 5.4 7.3 8.0 9.0 8.9 10.2 12.2 11.6 10.3 7.7 5.4 5.7 5.9 5.8 6.3 6.9 12.2 3.1
8 3.6 4.9 3.3 3.3 3.0 3.0 4.6 3.9 4.8 6.3 6.3 6.7 7.5 7.5 6.5 8.9 8.1 8.4 7.9 4.7 7.2 6.9 8.6 7.4 6.0 8.9 3.0
9 12.4 11.2 11.6 10.7 10.5 9.3 11.7 11.9 12.0 11.8 12.0 12.2 13.0 16.3 13.0 9.2 8.7 10.4 10.1 8.2 6.0 5.7 8.2 7.9 10.6 16.3 5.7
10 8.1 9.5 12.5 10.9 12.5 13.2 10.6 10.8 12.0 13.5 12.7 11.7 11.9 8.0 8.2 4.7 7.4 8.9 9.6 10.4 12.0 13.0 10.9 6.6 10.4 13.5 4.7
11 6.3 6.9 5.6 4.7 5.4 8.8 7.0 7.7 9.1 10.5 11.1 12.8 10.9 10.4 10.1 8.0 6.5 6.4 5.3 15.3 16.7 17.4 18.3 20.6 10.1 20.6 4.7
12 21.7 21.2 14.2 16.2 16.9 12.7 14.6 13.7 13.5 14.6 13.9 13.3 15.9 19.3 15.1 12.0 6.4 5.1 10.5 10.4 14.0 18.9 21.9 25.4 15.1 25.4 5.1
13 24.9 17.1 10.5 14.1 12.9 12.9 7.1 7.8 11.4 11.8 12.6 13.0 14.5 15.7 14.8 13.3 18.7 10.7 7.2 9.7 7.7 10.5 6.7 7.6 12.2 24.9 6.7
14 6.9 7.8 5.4 8.1 9.7 10.7 8.9 9.5 11.1 11.1 10.2 10.1 11.6 9.9 7.0 4.4 5.2 3.5 4.5 5.9 6.1 6.2 5.9 5.4 7.7 11.6 3.5
15 6.3 5.3 5.8 6.5 6.7 9.2 11.6 14.9 15.8 12.0 14.4 14.5 11.7 13.4 14.4 13.1 13.9 9.9 7.6 7.0 7.4 9.2 10.9 14.6 10.7 15.8 5.3
16 11.6 6.9 5.9 6.6 3.7 5.4 5.3 3.9 5.9 8.9 10.3 13.6 12.8 14.2 15.0 13.4 12.3 12.0 8.8 7.1 7.5 9.1 12.3 13.3 9.4 15.0 3.7
17 14.2 12.5 13.6 11.7 8.7 8.3 9.5 8.6 9.4 9.9 20.7 15.7 8.9 4.1 9.0 7.6 6.6 7.2 9.1 7.4 8.0 11.8 17.8 7.6 10.3 20.7 4.1
18 8.4 6.8 7.3 8.0 7.1 8.3 9.9 13.3 14.5 13.9 11.1 9.1 9.3 8.8 8.3 11.7 20.9 14.7 7.9 24.5 16.6 11.8 8.6 6.5 11.1 24.5 6.5
19 6.0 7.0 6.0 11.1 12.3 12.9 11.1 10.4 13.1 12.5 11.9 11.9 12.3 13.7 10.7 9.5 8.4 11.4 7.5 9.8 10.6 11.3 13.2 13.3 10.7 13.7 6.0
20 13.5 13.1 14.9 12.1 12.7 11.6 9.4 10.5 10.9 10.7 9.4 11.9 11.3 16.3 12.8 10.8 10.7 9.2 6.2 6.9 6.9 8.3 7.9 9.8 10.7 16.3 6.2
21 12.7 11.1 11.0 11.1 10.1 9.6 11.1 11.3 9.8 11.2 16.3 16.4 17.4 19.5 10.3 12.1 9.9 10.0 8.5 6.3 5.5 6.1 6.1 6.6 10.8 19.5 5.5
22 9.3 12.2 12.5 12.9 12.3 11.5 13.1 11.9 13.7 12.1 11.5 14.7 16.9 15.7 17.6 14.1 14.8 13.5 15.5 11.3 11.1 13.1 13.4 17.5 13.4 17.6 9.3
23 19.4 13.2 11.7 11.4 9.7 8.4 7.9 11.3 15.6 19.1 20.7 22.4 22.9 22.9 26.8 27.4 21.1 16.9 19.0 16.9 19.0 18.1 20.2 22.8 17.7 27.4 7.9
24 24.2 18.9 17.6 16.6 15.5 14.8 19.1 21.2 24.4 25.1 22.6 22.5 25.2 27.5 30.8 23.4 18.9 16.8 12.9 14.6 12.0 6.1 5.4 4.7 18.4 30.8 4.7
25 4.5 5.4 7.8 5.9 7.4 4.7 4.5 6.3 8.2 12.5 14.3 18.9 14.3 12.9 14.5 11.3 12.9 12.3 6.6 5.0 7.2 4.8 7.5 3.7 8.9 18.9 3.7
26 3.5 2.7 2.4 3.9 2.5 3.1 3.6 3.6 4.6 6.0 7.3 6.9 7.2 7.9 9.5 8.3 6.4 6.4 5.1 5.2 4.2 4.5 5.0 4.9 5.2 9.5 2.4
27 4.6 5.2 4.9 5.2 6.0 5.8 5.5 5.8 7.9 8.6 10.3 9.3 10.0 11.7 12.9 10.3 8.8 8.2 6.1 6.5 7.4 8.2 6.8 10.2 7.8 12.9 4.6
28 11.9 11.0 10.6 10.5 12.5 11.3 11.0 13.1 10.9 11.4 6.9 7.8 9.6 9.3 9.1 7.5 6.5 6.1 4.2 3.6 4.1 4.0 3.8 5.0 8.4 13.1 3.6
29 5.3 3.4 3.0 3.6 3.4 2.8 5.6 4.9 3.9 5.2 6.5 6.6 7.3 8.7 8.7 8.1 8.5 6.9 5.4 5.3 4.9 3.8 4.9 5.2 5.5 8.7 2.8
30 5.3 5.8 5.1 4.3 4.6 4.1 4.9 2.3 4.1 5.3 5.4 6.4 6.9 6.7 6.1 6.3 6.1 5.1 5.8 6.0 5.6 4.4 4.5 4.4 5.2 6.9 2.3
31 6.1 5.9 5.3 5.6 5.8 5.4 5.0 2.5 3.5 5.3 5.5 6.1 5.7 5.9 6.2 6.1 5.4 5.3 5.8 5.8 5.1 5.8 5.6 5.9 5.5 6.2 2.5
MEAN 9.4 8.6 8.2 8.3 8.2 8.2 8.2 8.5 9.8 10.7 11.3 11.6 11.7 12.1 12.3 10.7 10.4 9.4 8.3 8.3 8.3 8.7 9.2 9.2 9.6
MAX 24.9 21.2 17.6 16.6 16.9 14.8 19.1 21.2 24.4 25.1 22.6 22.5 25.2 27.5 30.8 27.4 21.1 16.9 19.0 24.5 19.0 18.9 21.9 25.4 30.8
MIN 3.5 2.7 2.4 3.3 2.5 2.8 2.6 2.3 3.5 5.2 5.4 6.1 5.7 4.1 6.1 4.4 5.2 3.5 4.2 3.6 4.1 3.8 3.8 3.7 2.3
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =741 DATA RECOVERY RATE =
MONTHLY MEAN =9.6 mps
MAXIMUM WIND GUST =30.8 mps DATE OF OCCURRENCE =8/24 AT 1500 MAXIMUM DAILY MEAN =18.4 mps DATE OF OCCURRENCE =8/24
MINIMUM WIND GUST =2.3 mps DATE OF OCCURRENCE =8/30 AT 0800 MINUMUM DAILY MEAN =5.2 mps DATE OF OCCURRENCE =8/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.6%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for SEPTEMBER, 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 5.3 4.3 5.1 5.2 4.0 5.1 3.3 2.5 4.1 7.1 9.7 8.2 6.9 8.3 8.3 6.8 5.1 3.9 5.4 5.9 5.5 5.7 5.2 5.5 5.7 9.7 2.5
2 7.6 9.9 8.9 9.7 10.7 9.1 11.0 12.0 13.3 12.5 12.2 11.7 11.6 11.0 10.3 11.3 12.9 10.7 11.7 12.1 15.6 13.3 12.8 9.9 11.3 15.6 7.6
3 5.2 8.7 14.4 17.2 12.8 9.5 11.2 12.3 14.0 14.2 14.9 12.8 13.8 12.9 10.8 28.9 4.4 6.2 23.5 9.7 18.5 14.2 10.9 7.1 12.8 28.9 4.4
4 13.9 19.5 6.2 7.8 6.5 6.1 5.7 6.2 4.3 5.0 6.5 9.9 9.9 9.3 9.5 9.3 11.5 11.1 10.9 10.9 9.8 9.1 8.6 8.3 9.0 19.5 4.3
5 6.7 10.2 9.6 6.6 6.5 8.4 4.5 2.5 4.4 3.9 4.6 5.4 6.0 6.0 5.5 5.7 6.4 6.7 4.9 4.7 4.5 4.6 4.6 4.5 5.7 10.2 2.5
6 5.8 5.2 6.3 6.4 6.2 6.0 5.5 4.9 7.3 8.1 9.2 9.9 7.6 8.6 7.1 7.0 6.2 5.1 5.6 4.2 5.1 5.1 5.5 5.2 6.4 9.9 4.2
7 5.7 4.6 5.2 5.3 6.2 6.0 5.4 3.9 11.2 10.1 9.7 9.5 8.6 6.5 7.4 6.1 6.7 9.4 3.8 4.5 5.0 5.2 5.5 5.9 6.6 11.2 3.8
8 5.1 5.4 6.0 7.2 7.1 5.9 7.5 7.8 8.4 10.6 10.2 10.8 9.9 8.6 10.2 7.3 8.3 7.1 13.1 10.6 4.4 5.5 6.2 6.6 7.9 13.1 4.4
9 7.6 5.9 5.7 5.9 5.7 7.4 6.3 10.0 9.9 11.3 9.7 10.3 9.9 15.8 13.0 6.1 4.9 8.9 13.4 11.4 13.4 14.1 12.5 9.7 9.5 15.8 4.9
10 10.9 10.0 12.3 8.2 11.7 12.6 13.5 13.7 14.6 14.5 13.8 14.3 13.3 12.7 12.3 14.5 23.2 5.7 5.2 12.1 15.5 7.5 7.4 7.7 12.0 23.2 5.2
11 9.1 13.4 12.1 12.5 11.9 10.7 9.8 10.4 9.9 12.2 20.4 19.6 20.4 20.1 18.9 17.5 19.1 15.8 16.7 19.0 17.1 18.9 17.9 18.5 15.5 20.4 9.1
12 20.7 13.2 11.9 11.0 14.4 14.4 11.7 11.1 8.8 6.8 9.9 9.9 8.7 8.4 10.3 8.3 10.5 10.6 10.3 3.3 4.8 4.4 3.9 4.2 9.6 20.7 3.3
13 4.5 4.3 4.0 5.4 5.3 4.8 5.6 3.1 5.1 5.7 7.5 6.7 7.6 6.6 7.4 7.1 8.5 6.9 5.3 5.4 6.0 5.3 4.1 5.2 5.7 8.5 3.1
14 4.9 4.5 6.1 7.8 9.4 10.9 10.1 4.1 7.8 9.9 9.9 10.1 9.4 11.4 13.7 12.6 11.7 10.3 3.7 4.8 4.6 6.8 8.2 8.1 8.4 13.7 3.7
15 8.5 8.6 8.9 8.7 10.5 9.1 13.6 14.9 13.6 13.9 13.5 13.2 17.0 15.9 14.4 17.2 12.7 7.0 6.8 9.8 6.4 6.4 7.7 7.2 11.1 17.2 6.4
16 9.2 8.5 8.3 8.2 6.2 7.1 8.1 10.9 12.1 16.2 18.7 17.8 17.7 19.4 18.1 8.5 5.2 5.8 5.5 10.4 8.8 7.1 8.1 7.7 10.6 19.4 5.2
17 8.2 8.5 6.3 3.5 7.6 3.7 3.4 14.0 10.3 9.8 9.7 9.1 12.2 9.0 13.1 10.1 5.4 2.8 3.2 4.5 6.4 6.8 5.8 4.9 7.4 14.0 2.8
18 4.1 5.6 5.5 5.8 5.3 5.7 6.9 7.3 2.4 4.9 7.3 8.9 9.6 7.4 6.3 8.1 7.6 7.9 5.3 3.7 3.8 4.3 6.1 4.8 6.0 9.6 2.4
19 3.3 4.5 2.7 4.1 3.2 3.9 3.9 2.3 3.3 3.7 4.5 6.1 5.9 6.6 8.1 7.3 5.9 5.7 4.4 5.0 4.5 5.3 5.1 4.1 4.7 8.1 2.3
20 3.4 4.9 5.0 3.9 2.8 4.3 5.3 2.5 3.7 5.8 5.9 6.1 7.7 11.4 11.2 10.5 8.7 9.1 6.4 3.9 4.9 4.8 4.7 7.1 6.0 11.4 2.5
21 5.1 6.1 4.2 6.0 5.9 5.3 5.9 5.2 3.5 4.9 6.7 7.4 9.1 10.3 11.4 10.0 10.7 7.8 6.9 6.3 4.9 5.0 4.7 4.4 6.6 11.4 3.5
22 6.0 2.2 4.8 2.2 2.8 3.7 2.4 2.6 3.5 4.1 5.4 5.8 6.3 6.6 7.1 7.0 6.7 6.1 4.1 3.0 4.9 5.0 5.5 5.1 4.7 7.1 2.2
23 5.7 5.4 3.6 3.4 3.9 3.8 5.4 2.1 4.1 5.0 7.2 6.6 6.7 6.8 7.1 7.3 5.2 5.0 3.7 3.3 4.3 3.7 3.5 5.4 4.9 7.3 2.1
24 4.6 3.7 3.6 3.7 3.2 3.7 3.6 2.1 3.0 4.6 5.1 5.5 6.5 6.0 7.2 6.4 5.6 4.5 4.1 4.9 5.8 6.2 5.7 6.1 4.8 7.2 2.1
25 7.0 6.1 5.0 5.7 3.1 7.6 9.9 11.9 12.5 12.7 11.1 12.9 13.1 13.1 13.1 10.6 10.1 6.9 7.3 8.0 7.0 6.7 7.2 7.4 9.0 13.1 3.1
26 7.4 7.5 10.4 10.3 10.9 9.6 8.6 6.1 7.4 8.2 11.5 10.9 12.1 10.4 10.9 10.1 10.2 11.0 4.2 5.2 5.2 5.2 4.5 5.7 8.5 12.1 4.2
27 5.3 5.5 4.8 4.2 4.6 3.9 4.9 3.9 3.2 3.9 4.2 5.5 5.3 7.4 6.7 6.9 7.5 5.9 4.2 4.9 5.3 5.3 6.2 5.4 5.2 7.5 3.2
28 5.6 5.1 6.4 4.8 3.2 4.5 5.0 3.2 5.0 7.3 13.4 12.3 11.8 11.2 9.8 10.1 8.0 6.4 7.2 6.9 7.2 8.0 9.8 8.6 7.5 13.4 3.2
29 8.4 8.9 10.7 12.5 20.5 10.6 14.5 11.3 11.3 12.7 11.9 12.9 12.6 8.8 14.5 13.5 16.2 12.9 18.7 9.7 11.8 12.9 13.1 10.8 12.6 20.5 8.4
30 4.5 3.8 4.4 4.1 3.7 3.7 2.8 2.7 4.9 5.4 6.7 7.5 7.4 8.4 7.3 8.1 6.1 4.8 3.4 5.3 3.6 3.5 4.7 4.6 5.1 8.4 2.7
MEAN 7.0 7.1 7.0 6.9 7.2 6.9 7.2 6.9 7.6 8.5 9.7 9.9 10.2 10.2 10.4 10.0 9.0 7.6 7.6 7.1 7.5 7.2 7.2 6.9 8.0
MAX 20.7 19.5 14.4 17.2 20.5 14.4 14.5 14.9 14.6 16.2 20.4 19.6 20.4 20.1 18.9 28.9 23.2 15.8 23.5 19.0 18.5 18.9 17.9 18.5 28.9
MIN 3.3 2.2 2.7 2.2 2.8 3.7 2.4 2.1 2.4 3.7 4.2 5.4 5.3 6.0 5.5 5.7 4.4 2.8 3.2 3.0 3.6 3.5 3.5 4.1 2.1
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =8.0 mps
MAXIMUM WIND GUST =28.9 mps DATE OF OCCURRENCE =9/3 AT 1600 MAXIMUM DAILY MEAN =15.5 mps DATE OF OCCURRENCE =9/11
MINIMUM WIND GUST =2.1 mps DATE OF OCCURRENCE =9/23 AT 0800 MINUMUM DAILY MEAN =4.7 mps DATE OF OCCURRENCE =9/22
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

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

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for JULY, 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 69.4 68.9 68.8 68.2 68.2 66.8 68.0 68.6 71.5 73.2 73.0 71.5 70.9 71.7 72.7 72.6 71.8 71.9 70.7 69.7 69.0 66.8 63.9 63.3 69.6 73.2 63.3
2 62.3 61.0 62.3 62.0 59.1 59.4 62.2 66.0 67.1 68.1 68.8 70.6 71.6 72.3 73.7 74.4 74.5 74.2 73.7 69.1 66.5 65.2 66.4 65.9 67.4 74.5 59.1
3 66.1 66.7 67.2 67.6 67.0 66.4 67.8 68.8 70.2 73.3 73.8 74.4 75.8 77.4 78.9 79.2 78.6 79.1 77.0 72.6 71.8 72.0 69.6 67.6 72.0 79.2 66.1
4 66.1 65.2 63.8 62.7 61.3 59.7 65.1 66.6 67.7 69.3 70.9 72.5 74.0 75.5 77.4 78.6 78.2 77.5 76.7 71.1 69.1 68.2 68.0 67.4 69.7 78.6 59.7
5 66.5 66.0 65.2 64.9 63.6 64.2 68.8 72.8 72.3 75.0 77.0 78.2 80.2 81.2 82.8 82.1 82.0 81.9 81.1 75.1 74.0 73.8 72.0 71.2 73.8 82.8 63.6
6 70.1 70.4 70.4 69.5 69.3 68.5 71.2 73.7 72.8 73.8 75.8 78.5 81.2 82.2 83.9 84.4 84.7 85.7 85.1 79.5 75.6 74.5 74.6 74.0 76.2 85.7 68.5
7 75.3 75.5 75.6 74.0 72.2 71.2 73.2 74.4 75.1 77.4 78.7 79.2 80.1 81.2 82.1 82.1 82.4 81.9 81.0 76.9 75.1 73.5 73.6 72.7 76.8 82.4 71.2
8 69.4 70.1 67.9 67.9 66.8 67.4 69.4 73.2 75.7 77.5 79.3 81.0 82.8 83.8 84.5 84.7 85.0 83.9 82.8 78.0 75.2 73.9 73.5 75.1 76.2 85.0 66.8
9 74.1 72.7 73.7 74.7 74.2 73.7 73.6 77.8 79.2 81.3 84.9 86.2 87.7 88.8 90.0 90.6 90.7 90.4 88.0 83.2 81.4 78.9 77.8 78.7 81.4 90.7 72.7
10 81.0 79.5 77.6 79.6 76.4 76.0 78.9 82.6 84.0 86.1 87.8 90.2 92.2 93.7 94.5 95.3 95.3 94.6 92.5 86.8 84.1 83.3 82.2 82.0 85.7 95.3 76.0
11 83.0 83.2 82.4 81.7 80.9 82.0 82.5 86.5 87.3 90.0 92.2 94.5 96.0 97.1 97.3 96.2 95.6 95.3 94.0 87.8 85.0 84.2 83.1 82.0 88.3 97.3 80.9
12 82.2 80.7 80.8 80.9 79.7 80.2 82.3 86.9 87.0 87.9 91.1 93.3 94.7 93.3 95.0 95.9 95.3 94.9 93.1 88.6 85.7 84.1 84.3 85.4 87.6 95.9 79.7
13 85.9 82.9 82.1 80.8 81.1 81.4 81.8 84.2 86.4 88.8 91.0 91.7 92.2 92.9 93.2 93.6 93.2 93.2 91.0 88.1 88.4 86.6 85.2 83.8 87.5 93.6 80.8
14 81.1 81.0 80.3 78.3 77.8 76.9 79.2 81.7 83.1 82.9 85.8 88.8 88.5 89.1 90.8 91.2 92.9 92.6 90.8 85.9 83.6 82.6 78.6 75.8 84.1 92.9 75.8
15 76.7 75.3 75.1 73.0 72.2 71.5 74.4 77.8 79.1 80.6 82.1 82.7 82.8 84.4 84.4 85.7 86.9 86.3 84.9 82.3 78.3 76.9 77.2 75.7 79.4 86.9 71.5
16 74.7 73.5 72.4 72.4 71.6 70.9 73.0 76.9 78.0 79.6 81.5 83.0 83.9 84.3 86.3 87.1 87.0 86.2 84.9 81.7 78.5 76.8 75.4 76.4 79.0 87.1 70.9
17 76.1 73.7 73.5 73.2 73.9 73.6 73.3 78.2 78.2 80.2 83.5 86.6 88.0 88.5 88.7 90.5 91.7 89.8 87.6 82.1 83.9 80.7 81.5 79.4 81.5 91.7 73.2
18 77.5 75.7 78.0 76.7 75.2 74.6 75.8 79.8 82.2 84.5 87.0 88.3 89.4 89.9 88.6 88.0 88.7 86.1 80.5 83.3 80.9 78.4 77.3 75.7 81.8 89.9 74.6
19 77.7 76.5 73.3 70.6 71.2 72.5 74.3 78.7 80.2 82.1 83.2 84.8 85.3 87.2 88.1 88.3 89.2 88.5 87.1 83.1 81.8 80.5 78.4 77.8 80.9 89.2 70.6
20 77.9 76.4 75.3 73.6 72.6 72.9 75.8 79.7 81.1 82.8 85.6 87.7 88.9 90.3 91.4 91.4 91.0 90.4 89.0 84.6 82.5 80.6 79.4 78.8 82.5 91.4 72.6
21 78.3 77.6 75.8 72.5 73.0 71.1 73.2 78.3 78.5 80.3 82.6 84.9 87.5 89.2 90.5 90.1 89.7 89.2 87.9 83.7 82.1 80.9 78.6 77.3 81.4 90.5 71.1
22 79.1 78.2 76.4 77.2 75.3 75.9 77.9 79.1 79.8 82.9 84.7 86.9 88.0 89.1 90.3 90.3 90.2 89.7 87.6 84.6 82.6 81.7 81.1 79.8 82.8 90.3 75.3
23 78.7 78.0 77.7 77.3 79.0 79.5 77.4 81.1 82.1 83.2 85.1 87.0 88.4 88.9 89.4 90.8 92.1 91.4 89.6 85.6 83.5 81.1 80.1 81.6 83.7 92.1 77.3
24 79.6 79.9 78.8 79.7 77.6 75.1 77.8 81.9 83.9 86.1 88.1 90.0 92.0 93.4 94.4 94.7 94.0 93.0 90.5 88.1 85.7 84.5 83.0 80.1 85.5 94.7 75.1
25 80.0 80.0 77.9 77.0 74.1 73.2 73.4 71.2 72.7 76.2 78.4 79.9 81.6 83.3 84.9 85.9 86.3 86.5 85.8 83.4 78.2 77.2 71.7 69.8 78.7 86.5 69.8
26 68.6 66.5 66.2 65.6 66.6 66.0 66.5 69.6 69.2 72.5 75.7 78.4 80.3 80.9 81.9 83.0 83.3 83.7 83.8 81.7 78.8 77.9 78.6 78.8 75.2 83.8 65.6
27 79.0 75.8 70.6 71.1 68.6 68.3 68.9 71.9 72.1 74.2 74.2 76.7 79.5 81.9 83.6 86.1 86.3 84.2 75.8 69.2 71.4 73.2 74.4 70.4 75.3 86.3 68.3
28 70.1 68.8 67.8 68.5 67.4 66.7 67.7 70.7 74.5 76.7 79.0 81.8 83.7 84.5 84.7 83.1 82.6 83.4 81.3 77.0 75.1 75.3 75.9 77.1 76.0 84.7 66.7
29 77.5 73.0 69.7 69.1 69.2 67.7 70.0 74.4 76.4 78.0 80.7 83.8 85.6 87.1 87.6 88.2 88.4 88.8 87.6 82.3 78.9 77.8 78.9 80.4 79.2 88.8 67.7
30 81.1 71.0 71.0 70.2 71.2 68.6 70.7 75.1 77.4 79.3 80.9 82.4 83.7 84.8 83.6 83.9 83.7 82.8 81.3 77.3 75.8 74.6 74.3 73.9 77.4 84.8 68.6
31 73.9 71.3 68.4 68.9 68.1 66.2 68.4 72.3 75.2 75.9 78.9 80.5 81.5 82.4 83.7 83.8 83.7 83.4 82.3 78.0 76.1 76.9 76.1 74.1 76.2 83.8 66.2
MEAN 75.5 74.0 73.1 72.6 71.8 71.2 73.0 76.1 77.4 79.4 81.3 83.1 84.5 85.5 86.4 86.8 86.9 86.5 84.7 80.7 78.7 77.5 76.6 75.9 79.1
MAX 85.9 83.2 82.4 81.7 81.1 82.0 82.5 86.9 87.3 90.0 92.2 94.5 96.0 97.1 97.3 96.2 95.6 95.3 94.0 88.6 88.4 86.6 85.2 85.4 97.3
MIN 62.3 61.0 62.3 62.0 59.1 59.4 62.2 66.0 67.1 68.1 68.8 70.6 70.9 71.7 72.7 72.6 71.8 71.9 70.7 69.1 66.5 65.2 63.9 63.3 59.1
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =79.1 Deg F
MAXIMUM TEMPERATURE =97.3 Deg F DATE OF OCCURRENCE =7/11 AT 1500 MAXIMUM DAILY MEAN =88.3 Deg F DATE OF OCCURRENCE =7/11
MINIMUM TEMPERATURE =59.1 Deg F DATE OF OCCURRENCE =7/2 AT 0500 MINUMUM DAILY MEAN =67.4 Deg F DATE OF OCCURRENCE =7/2
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for AUGUST, 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 73.0 72.5 71.8 71.4 71.0 71.1 73.0 78.5 82.2 83.6 85.5 87.0 88.0 90.1 90.3 90.2 90.1 89.6 87.6 83.4 81.6 81.3 79.2 79.7 81.3 90.3 71.0
2 78.5 77.0 77.5 79.1 79.0 77.4 79.2 82.7 83.9 87.4 89.8 91.5 92.7 ---93.3 93.3 92.4 91.8 90.1 86.7 84.0 83.2 83.6 83.4 85.1 93.3 77.0
3 81.8 82.9 80.3 78.0 75.3 75.3 77.9 81.4 82.8 85.3 85.9 86.8 87.4 90.2 91.2 88.6 83.6 82.1 79.3 75.1 73.4 72.3 72.5 75.7 81.1 91.2 72.3
4 76.0 72.9 71.5 71.3 71.7 73.1 74.4 75.7 79.7 79.2 82.4 85.3 86.6 87.5 87.6 87.7 88.6 88.6 86.7 82.6 81.1 79.6 81.0 80.9 80.5 88.6 71.3
5 79.4 78.3 76.9 75.4 76.8 76.8 78.2 81.5 83.3 85.3 87.7 89.1 90.2 91.0 80.4 82.7 86.9 88.2 86.9 83.5 82.0 81.8 82.2 80.2 82.7 91.0 75.4
6 79.3 80.7 77.9 75.4 75.3 76.7 79.8 80.4 82.8 84.7 87.4 89.7 91.0 91.7 92.3 93.2 93.9 93.5 91.9 86.7 84.7 84.5 86.6 87.0 85.3 93.9 75.3
7 82.4 79.5 79.8 79.5 76.2 76.0 77.4 81.1 81.9 83.6 86.8 88.7 89.1 89.5 90.9 91.3 90.6 89.6 87.5 82.5 80.7 79.4 79.2 78.3 83.4 91.3 76.0
8 77.1 76.4 75.5 76.6 74.5 73.0 75.0 76.6 76.7 79.1 82.2 83.9 84.1 86.0 87.5 87.7 87.5 87.2 85.2 80.7 79.4 80.6 78.9 77.4 80.4 87.7 73.0
9 75.6 75.8 73.5 71.9 73.0 72.8 72.6 75.9 75.7 77.0 80.3 83.2 84.7 81.3 80.8 83.7 85.4 83.1 77.5 77.3 77.7 76.1 77.1 76.4 77.8 85.4 71.9
10 74.1 72.5 71.3 70.8 69.5 69.6 71.7 74.7 76.7 78.7 81.2 83.1 84.2 84.4 84.0 84.1 83.0 83.4 81.3 78.6 78.1 78.5 76.0 78.1 77.8 84.4 69.5
11 79.5 77.0 75.0 74.2 71.9 71.2 71.4 71.5 74.0 76.9 78.4 80.9 82.0 82.8 83.8 85.6 86.9 85.5 84.7 80.7 73.7 71.9 70.3 67.9 77.4 86.9 67.9
12 68.9 70.5 66.4 65.0 67.1 65.5 66.4 69.9 71.7 74.4 75.8 77.3 73.7 70.9 65.7 63.8 61.5 62.5 64.9 65.3 65.3 65.2 64.5 65.7 67.8 77.3 61.5
13 64.1 62.3 60.8 63.0 62.6 61.6 62.2 64.2 67.9 69.3 70.6 73.5 75.3 77.7 79.0 78.8 73.5 67.3 63.8 66.0 68.2 67.3 66.7 66.4 68.0 79.0 60.8
14 66.6 65.6 65.4 65.3 65.7 64.2 66.4 69.8 71.5 73.0 74.3 76.1 77.2 77.7 77.7 78.4 79.4 79.5 78.4 74.5 72.8 73.4 73.2 73.4 72.5 79.5 64.2
15 72.9 70.6 69.1 70.6 70.5 68.8 68.2 71.9 73.6 75.8 78.9 81.1 82.0 83.5 84.5 85.1 85.4 85.7 84.2 82.7 82.3 81.5 78.6 81.1 77.9 85.7 68.2
16 76.4 74.0 72.0 70.1 68.5 66.7 68.5 73.5 73.9 76.8 79.1 81.1 82.6 83.7 86.5 87.3 86.8 87.5 85.1 81.1 81.3 82.8 82.0 83.8 78.8 87.5 66.7
17 79.5 78.5 77.7 73.9 72.6 73.2 74.3 77.2 77.8 79.7 74.8 66.3 66.8 62.3 61.9 66.6 69.1 71.2 72.5 72.6 72.0 70.9 69.5 66.3 72.0 79.7 61.9
18 63.2 65.0 67.8 67.4 66.8 65.9 69.0 71.9 73.3 74.8 75.8 78.0 79.5 79.0 78.7 77.0 72.2 66.6 66.0 66.1 67.3 67.9 69.2 68.7 70.7 79.5 63.2
19 65.6 66.1 66.3 69.8 68.0 65.4 66.9 70.9 73.1 75.0 77.4 78.9 79.8 80.6 82.0 82.9 83.8 84.7 84.0 79.5 76.2 73.0 72.8 72.1 74.8 84.7 65.4
20 72.1 71.3 69.5 71.2 75.8 75.7 76.6 77.5 78.3 80.3 81.7 83.1 84.2 86.7 88.5 88.9 89.0 89.2 87.9 87.4 84.6 85.0 87.0 85.9 81.6 89.2 69.5
21 86.3 81.4 77.2 76.9 76.2 76.6 76.1 76.9 78.5 81.4 85.0 85.8 86.8 86.6 85.4 84.2 83.7 81.9 78.5 74.8 72.8 72.6 73.7 73.5 79.7 86.8 72.6
22 73.3 68.9 71.4 71.2 70.3 69.2 69.6 72.5 74.3 73.8 71.0 76.7 79.8 79.6 79.7 80.0 80.9 80.8 78.8 76.9 75.8 74.0 72.9 72.2 74.7 80.9 68.9
23 72.0 71.3 70.6 70.0 68.9 68.1 68.0 69.1 70.6 72.7 75.0 76.4 74.4 78.9 81.6 82.6 83.0 82.8 81.1 78.8 78.7 78.7 77.8 76.9 75.3 83.0 68.0
24 75.8 75.1 73.3 71.9 70.1 68.3 69.7 72.6 73.0 74.2 75.6 77.8 79.2 80.6 80.8 79.9 79.2 75.3 67.9 64.7 63.4 62.6 63.6 64.3 72.5 80.8 62.6
25 63.7 61.3 63.2 59.3 61.1 61.6 61.5 65.5 67.4 70.5 71.7 73.7 74.5 74.7 74.2 69.4 68.6 66.7 64.9 62.5 59.3 57.4 56.6 56.6 65.2 74.7 56.6
26 56.8 55.3 53.8 53.8 53.8 53.2 54.7 59.1 60.2 62.2 64.3 66.2 67.6 69.5 69.8 70.6 70.6 69.6 67.0 64.6 62.9 61.6 62.0 61.8 62.1 70.6 53.2
27 60.7 60.6 60.2 59.6 59.8 60.8 63.2 66.3 66.8 69.2 72.2 75.2 77.5 79.1 81.1 80.5 81.3 80.8 76.7 73.1 72.4 71.4 74.0 72.6 70.6 81.3 59.6
28 71.7 75.6 73.4 71.9 68.3 65.0 66.8 71.2 75.2 76.3 77.5 78.4 78.0 77.9 78.4 78.7 78.8 78.0 74.6 72.1 70.3 69.9 68.4 67.0 73.5 78.8 65.0
29 66.1 64.9 62.0 59.8 57.2 56.0 56.8 60.4 64.0 66.3 67.9 69.5 71.5 71.6 71.9 72.6 72.5 71.8 68.3 67.0 65.0 61.8 62.1 60.9 65.3 72.6 56.0
30 60.7 61.5 59.6 58.8 58.6 58.1 59.3 66.1 67.6 68.8 71.8 73.1 75.4 77.0 78.4 78.8 78.4 77.7 73.6 70.5 69.5 68.0 66.5 65.8 68.5 78.8 58.1
31 65.8 65.2 65.0 64.6 64.1 64.0 64.6 70.0 72.6 73.9 75.8 77.8 79.8 82.0 83.4 84.1 83.7 82.3 78.9 75.5 73.3 73.7 75.1 75.3 73.8 84.1 64.0
MEAN 72.2 71.3 70.2 69.6 69.0 68.4 69.7 72.8 74.5 76.4 78.2 79.8 80.8 81.1 81.7 81.9 81.6 80.8 78.6 75.9 74.5 73.8 73.6 73.4 75.4
MAX 86.3 82.9 80.3 79.5 79.0 77.4 79.8 82.7 83.9 87.4 89.8 91.5 92.7 91.7 93.3 93.3 93.9 93.5 91.9 87.4 84.7 85.0 87.0 87.0 93.9
MIN 56.8 55.3 53.8 53.8 53.8 53.2 54.7 59.1 60.2 62.2 64.3 66.2 66.8 62.3 61.9 63.8 61.5 62.5 63.8 62.5 59.3 57.4 56.6 56.6 53.2
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =743 DATA RECOVERY RATE =
MONTHLY MEAN =75.4 Deg F
MAXIMUM TEMPERATURE =93.9 Deg F DATE OF OCCURRENCE =8/6 AT 1700 MAXIMUM DAILY MEAN =85.3 Deg F DATE OF OCCURRENCE =8/6
MINIMUM TEMPERATURE =53.2 Deg F DATE OF OCCURRENCE =8/26 AT 0600 MINUMUM DAILY MEAN =62.1 Deg F DATE OF OCCURRENCE =8/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.9%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for SEPTEMBER, 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 73.4 71.3 71.1 70.0 70.3 69.6 70.1 74.1 76.4 77.2 80.4 83.0 84.6 86.6 87.4 87.6 86.1 85.9 80.9 78.4 76.9 75.7 76.1 75.3 77.8 87.6 69.6
2 75.4 76.0 74.6 70.8 70.4 71.1 71.0 74.2 79.3 80.9 82.3 84.1 84.9 85.2 85.1 84.8 79.3 79.3 77.6 77.7 76.7 71.7 71.4 72.7 77.3 85.2 70.4
3 69.7 70.1 72.3 73.5 73.2 68.2 69.6 69.8 75.3 77.6 76.9 75.7 78.5 81.2 82.3 73.5 69.5 70.1 71.6 70.1 69.0 68.2 65.4 64.1 72.3 82.3 64.1
4 64.8 66.9 61.2 61.8 62.8 63.2 64.2 65.8 65.8 68.0 70.1 71.8 72.3 72.8 73.3 73.9 72.8 71.6 68.7 67.9 67.0 66.5 65.9 64.4 67.6 73.9 61.2
5 65.2 64.5 64.0 61.9 60.5 60.7 61.9 63.5 65.6 68.7 71.1 73.3 75.3 76.8 77.5 79.4 79.3 77.3 72.9 70.1 69.4 68.5 69.3 67.4 69.3 79.4 60.5
6 68.0 68.8 68.6 69.3 69.2 69.1 70.5 72.8 73.6 75.8 76.6 78.7 80.5 80.7 81.9 82.1 82.8 81.4 76.7 73.9 72.5 71.8 71.9 72.1 74.6 82.8 68.0
7 71.3 69.5 69.0 70.0 69.4 67.0 68.0 72.1 74.4 77.2 79.3 80.9 82.6 84.3 85.5 85.3 86.5 84.5 79.0 76.3 75.0 74.8 74.7 74.6 76.3 86.5 67.0
8 75.3 75.3 74.7 74.7 73.7 72.0 70.4 72.2 75.2 77.3 78.2 81.3 82.6 83.5 84.9 85.5 83.9 82.0 78.7 78.7 78.5 76.2 75.3 75.2 77.7 85.5 70.4
9 75.4 74.2 73.9 74.1 72.3 71.5 70.6 73.4 76.0 77.7 79.7 81.1 81.8 76.0 72.5 79.3 79.8 78.8 76.9 77.4 71.8 70.7 70.4 68.5 75.1 81.8 68.5
10 66.1 67.4 68.2 65.6 65.8 66.6 65.5 70.2 73.7 74.2 76.9 78.6 78.7 79.6 80.6 80.7 81.6 80.9 78.7 76.5 75.5 75.1 74.0 71.0 73.8 81.6 65.5
11 71.2 70.9 71.8 71.6 71.4 70.8 69.8 70.9 72.3 74.0 76.8 78.4 79.3 80.0 80.7 81.1 81.5 81.1 79.8 79.3 78.7 77.6 68.2 62.8 75.0 81.5 62.8
12 59.9 59.6 57.7 56.1 53.6 51.8 50.7 51.9 54.3 55.9 56.4 58.1 59.5 58.0 59.0 61.4 61.0 59.3 56.3 54.6 54.0 53.3 53.1 52.6 56.2 61.4 50.7
13 51.9 51.2 51.3 50.1 50.3 49.8 50.3 55.6 57.0 58.7 60.9 62.1 63.7 65.8 66.8 67.2 66.4 66.3 62.7 61.2 60.7 60.4 58.6 58.2 58.6 67.2 49.8
14 57.1 56.9 57.4 57.9 59.7 58.8 58.6 61.6 64.9 67.1 69.9 72.2 74.7 77.1 78.5 78.4 78.1 75.9 71.0 69.4 68.3 67.8 71.5 74.0 67.8 78.5 56.9
15 73.6 71.2 70.1 68.9 65.1 64.1 67.5 71.0 72.0 72.3 73.6 74.9 76.1 76.9 78.9 78.9 71.3 71.9 68.4 69.9 67.5 70.5 69.9 71.0 71.5 78.9 64.1
16 69.9 67.3 63.4 61.5 64.0 65.3 65.3 66.4 67.8 69.3 70.7 72.2 73.0 72.7 72.0 69.7 68.4 68.1 68.6 69.7 68.5 67.7 67.0 65.0 68.1 73.0 61.5
17 61.0 58.1 53.7 53.0 51.2 50.4 49.8 49.6 48.4 49.0 51.7 50.2 52.3 53.3 50.2 51.7 52.8 52.8 51.9 50.1 49.2 49.9 51.1 49.9 51.7 61.0 48.4
18 48.9 48.5 48.7 49.3 49.7 49.9 50.1 49.8 52.8 54.9 56.8 59.0 60.0 61.7 63.4 63.5 62.6 60.5 57.1 55.4 55.2 53.8 53.4 53.2 54.9 63.5 48.5
19 53.3 52.7 51.9 51.7 51.6 51.7 52.4 56.5 58.2 60.5 63.4 66.2 67.7 68.7 68.6 68.3 67.8 66.8 64.1 62.9 61.8 60.5 60.0 60.3 60.3 68.7 51.6
20 60.0 59.5 59.9 58.7 57.5 57.7 58.1 62.5 65.1 66.4 67.7 69.6 71.8 71.7 71.5 71.7 71.8 69.9 65.7 65.4 63.3 62.8 62.9 63.2 64.8 71.8 57.5
21 61.7 60.1 62.9 61.3 59.3 57.7 57.7 60.5 60.2 63.6 65.8 69.4 70.1 70.4 70.1 70.4 70.4 68.7 66.7 64.9 64.8 63.2 63.5 62.0 64.4 70.4 57.7
22 59.7 58.4 57.4 56.6 55.8 55.3 55.0 59.4 61.5 63.3 66.3 68.1 69.8 70.7 70.8 70.9 69.8 67.9 64.6 63.1 61.8 60.9 61.1 61.3 62.9 70.9 55.0
23 60.6 60.3 59.1 58.4 57.5 56.8 58.3 63.5 63.1 65.0 66.7 67.6 70.1 70.1 69.7 69.4 69.7 68.2 65.0 62.5 61.2 60.7 60.8 61.2 63.6 70.1 56.8
24 60.5 60.0 59.3 59.2 58.8 58.7 58.6 63.4 66.0 66.5 67.4 69.5 72.3 73.6 74.0 74.2 73.5 71.1 66.7 66.6 66.5 68.3 68.8 69.0 66.4 74.2 58.6
25 69.4 69.0 69.7 65.7 65.4 63.6 64.9 70.4 73.2 74.9 75.6 78.2 80.4 81.7 82.2 82.5 82.6 81.5 78.9 77.9 76.4 77.0 77.0 77.8 74.8 82.6 63.6
26 77.3 73.9 71.4 73.4 75.1 72.9 74.4 75.8 78.6 77.1 79.5 80.7 81.6 81.3 80.4 79.8 79.1 76.5 73.4 71.2 69.6 68.7 69.5 68.5 75.4 81.6 68.5
27 68.4 67.2 66.4 65.6 65.4 65.2 65.5 69.7 72.3 73.6 75.5 77.9 79.4 81.3 81.6 81.5 80.6 76.9 73.5 71.5 70.4 71.2 71.1 72.0 72.6 81.6 65.2
28 69.8 70.4 72.2 70.8 67.6 68.5 67.9 71.5 75.4 76.5 79.5 81.8 84.3 85.5 86.1 86.7 85.9 83.3 80.7 78.8 79.3 80.3 80.2 78.2 77.5 86.7 67.6
29 78.1 80.2 78.9 77.7 78.7 76.6 76.6 77.6 81.1 81.9 82.0 83.5 83.3 83.1 83.7 85.3 81.9 80.0 79.1 80.4 81.9 80.1 76.6 74.7 80.1 85.3 74.7
30 66.8 63.6 63.5 62.0 61.5 60.5 59.6 62.4 63.4 66.7 68.2 68.6 68.1 68.6 69.2 69.0 67.9 64.7 60.9 59.6 59.5 59.0 58.2 57.6 63.7 69.2 57.6
MEAN 66.1 65.4 64.8 64.0 63.6 62.8 63.1 65.9 68.1 69.7 71.5 73.2 74.6 75.3 75.6 75.8 74.8 73.4 70.6 69.4 68.4 67.8 67.2 66.6 69.1
MAX 78.1 80.2 78.9 77.7 78.7 76.6 76.6 77.6 81.1 81.9 82.3 84.1 84.9 86.6 87.4 87.6 86.5 85.9 80.9 80.4 81.9 80.3 80.2 78.2 87.6
MIN 48.9 48.5 48.7 49.3 49.7 49.8 49.8 49.6 48.4 49.0 51.7 50.2 52.3 53.3 50.2 51.7 52.8 52.8 51.9 50.1 49.2 49.9 51.1 49.9 48.4
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =69.1 Deg F
MAXIMUM TEMPERATURE =87.6 Deg F DATE OF OCCURRENCE =9/1 AT 1600 MAXIMUM DAILY MEAN =80.1 Deg F DATE OF OCCURRENCE =9/29
MINIMUM TEMPERATURE =48.4 Deg F DATE OF OCCURRENCE =9/17 AT 0900 MINUMUM DAILY MEAN =51.7 Deg F DATE OF OCCURRENCE =9/17
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for JULY, 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 68.4 67.5 66.3 66.5 66.8 66.4 66.3 66.8 69.0 71.6 71.4 70.8 70.9 70.8 71.0 71.0 70.1 67.0 67.7 67.3 67.3 65.1 62.5 62.5 68.0 71.6 62.5
2 61.3 60.4 60.7 60.9 59.5 58.8 60.9 63.5 65.0 65.4 66.8 68.6 68.9 70.4 71.9 71.8 72.2 71.7 70.8 67.7 66.2 65.4 65.4 66.5 65.9 72.2 58.8
3 66.4 66.4 65.9 65.9 66.1 67.4 66.8 67.2 67.7 69.3 71.7 72.4 73.1 75.4 76.2 77.3 77.2 76.2 74.6 71.3 69.4 69.2 68.6 66.8 70.4 77.3 65.9
4 65.6 64.7 62.4 62.8 62.3 62.5 63.6 64.8 65.9 67.3 68.6 70.8 72.1 74.1 74.6 75.4 75.4 75.5 74.2 70.8 69.2 69.1 70.0 69.7 68.8 75.5 62.3
5 70.0 69.0 69.0 67.7 66.6 66.4 68.6 70.8 71.5 73.5 75.0 76.4 78.0 78.8 78.9 79.8 79.4 79.1 78.7 74.1 73.6 72.3 72.0 72.6 73.4 79.8 66.4
6 71.3 70.0 68.1 66.9 66.3 68.4 69.7 70.8 71.4 72.6 74.6 76.9 78.3 79.9 81.1 82.0 82.1 83.2 82.9 79.1 77.3 76.0 75.5 75.4 75.0 83.2 66.3
7 75.8 76.3 75.5 73.5 71.9 70.9 72.1 71.5 73.3 74.2 75.7 76.2 77.3 77.6 79.3 80.1 80.1 79.4 78.2 75.7 74.8 75.0 74.0 72.6 75.5 80.1 70.9
8 72.4 72.1 69.5 69.4 69.2 68.7 68.1 70.5 73.4 75.3 77.6 78.4 80.0 81.1 81.9 82.4 82.3 81.7 80.3 77.8 76.2 75.9 75.1 76.0 75.6 82.4 68.1
9 75.6 75.6 74.2 74.7 74.7 73.9 73.3 76.8 78.9 80.6 83.0 84.3 85.4 86.2 87.7 88.4 88.0 87.9 85.5 81.6 81.8 81.2 79.7 79.8 80.8 88.4 73.3
10 80.2 80.2 79.0 78.9 78.9 77.4 77.9 81.3 84.2 85.3 86.7 88.5 90.1 91.5 92.0 92.0 92.3 91.3 90.5 85.8 84.5 84.8 84.1 84.2 85.1 92.3 77.4
11 83.0 83.1 82.8 83.4 82.5 83.5 84.2 84.8 87.9 89.1 91.2 93.9 94.3 94.2 94.6 93.8 93.0 92.2 90.9 87.7 85.5 85.3 84.9 84.5 87.9 94.6 82.5
12 84.1 84.0 82.5 82.0 82.4 82.6 83.2 86.2 86.2 86.2 88.1 90.5 92.4 92.6 93.2 93.8 93.5 92.5 90.7 87.4 86.8 85.6 85.0 84.0 87.3 93.8 82.0
13 84.9 83.4 83.7 82.0 82.5 80.9 81.8 84.6 88.1 87.7 88.3 90.1 91.0 90.8 91.5 91.0 91.1 90.7 88.9 85.4 84.6 80.6 79.2 80.1 85.9 91.5 79.2
14 79.9 80.0 79.4 78.3 77.0 75.4 76.3 79.4 80.3 81.0 84.6 87.3 87.5 88.7 89.2 89.9 88.9 88.8 88.3 85.2 83.9 82.1 76.3 74.7 82.6 89.9 74.7
15 75.3 74.7 74.0 74.4 73.3 72.2 73.0 76.1 77.4 78.7 80.1 80.0 78.7 80.4 81.2 81.5 82.4 83.1 82.5 79.3 76.2 74.6 73.9 73.3 77.3 83.1 72.2
16 72.3 73.0 72.1 72.6 72.5 70.7 71.2 73.9 76.0 77.6 79.4 80.2 81.5 82.4 83.4 83.6 84.7 83.4 82.0 80.0 77.0 77.7 77.2 75.7 77.5 84.7 70.7
17 75.3 75.2 75.0 73.9 73.0 72.9 75.2 78.2 78.0 80.1 83.3 84.8 85.4 86.7 88.0 88.4 88.5 88.5 85.5 82.4 78.0 78.5 76.4 77.1 80.3 88.5 72.9
18 76.5 76.7 77.0 78.6 76.5 75.8 75.2 77.6 81.5 83.4 85.0 87.1 88.1 86.8 83.0 79.4 83.5 81.9 80.1 78.6 76.8 77.1 76.1 75.3 79.9 88.1 75.2
19 73.5 73.2 73.3 72.1 73.2 73.3 73.8 77.4 79.9 81.3 82.0 83.3 83.2 83.8 86.7 86.7 86.6 86.5 84.3 81.8 80.2 80.7 80.2 79.2 79.9 86.7 72.1
20 79.8 77.3 75.0 75.7 74.6 74.9 75.7 76.6 79.0 80.5 82.9 85.0 86.5 87.5 88.7 89.0 88.4 87.8 86.1 83.5 81.7 80.0 78.1 77.1 81.3 89.0 74.6
21 77.8 77.3 76.5 74.9 74.5 73.7 72.6 75.6 77.3 79.1 81.0 82.9 85.3 86.8 86.9 86.5 86.6 86.1 84.8 82.3 80.3 80.2 79.3 78.7 80.3 86.9 72.6
22 77.7 76.9 76.5 75.7 73.8 73.1 74.3 77.9 79.1 81.2 83.7 85.0 86.3 87.0 87.6 88.2 88.0 87.3 85.5 82.9 82.4 81.8 80.7 79.8 81.4 88.2 73.1
23 79.4 79.4 78.4 78.0 77.8 79.5 79.3 78.4 82.4 83.5 86.2 86.5 85.9 86.4 88.4 90.0 89.1 88.1 87.0 84.1 82.2 81.4 81.3 80.2 83.0 90.0 77.8
24 80.9 81.2 78.8 78.8 78.8 77.7 77.0 79.3 82.4 84.8 86.8 88.5 89.9 90.8 91.5 92.0 91.5 90.8 87.9 86.4 83.6 82.8 81.5 79.4 84.3 92.0 77.0
25 79.2 78.7 76.2 74.9 72.8 72.1 70.6 67.4 70.2 73.2 77.1 78.4 79.7 81.0 82.1 83.7 83.7 83.3 82.2 79.5 76.5 74.9 70.5 69.3 76.5 83.7 67.4
26 65.4 64.0 62.7 63.5 63.5 66.1 66.0 66.6 67.9 70.8 73.6 76.2 77.5 79.9 80.9 81.7 81.0 80.9 80.5 78.1 77.2 75.5 77.2 77.2 73.1 81.7 62.7
27 76.6 70.3 67.4 68.7 68.3 68.4 68.1 69.8 70.0 71.5 72.2 74.6 78.1 80.7 82.2 84.0 83.9 81.6 73.9 67.2 68.6 71.7 74.2 68.3 73.3 84.0 67.2
28 70.6 67.6 68.0 68.4 68.1 67.2 68.9 70.8 72.6 75.5 78.4 81.8 82.9 83.4 82.4 82.1 80.4 80.3 79.0 76.0 74.7 74.2 74.0 74.8 75.1 83.4 67.2
29 74.3 74.0 72.9 72.4 73.0 71.9 72.2 73.4 75.3 77.9 80.5 82.1 83.8 85.3 84.7 85.3 85.7 85.7 83.9 80.3 79.2 78.3 78.0 76.3 78.6 85.7 71.9
30 76.7 74.7 72.0 70.9 71.0 71.0 70.9 73.0 75.1 77.4 80.0 81.1 82.3 82.3 82.4 82.0 81.3 80.7 78.7 76.3 75.8 75.1 74.8 73.3 76.6 82.4 70.9
31 72.4 70.9 69.3 69.4 70.0 68.8 67.6 70.2 72.6 74.4 76.5 78.2 79.8 80.4 81.3 81.3 81.5 80.8 79.6 76.9 75.1 75.6 75.5 75.6 75.2 81.5 67.6
MEAN 74.9 74.1 73.0 72.8 72.3 72.0 72.4 74.2 76.1 77.7 79.7 81.3 82.4 83.3 84.0 84.3 84.3 83.7 82.1 79.1 77.6 77.0 76.2 75.5 77.9
MAX 84.9 84.0 83.7 83.4 82.5 83.5 84.2 86.2 88.1 89.1 91.2 93.9 94.3 94.2 94.6 93.8 93.5 92.5 90.9 87.7 86.8 85.6 85.0 84.5 94.6
MIN 61.3 60.4 60.7 60.9 59.5 58.8 60.9 63.5 65.0 65.4 66.8 68.6 68.9 70.4 71.0 71.0 70.1 67.0 67.7 67.2 66.2 65.1 62.5 62.5 58.8
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =77.9 Deg F
MAXIMUM TEMPERATURE =94.6 Deg F DATE OF OCCURRENCE =7/11 AT 1500 MAXIMUM DAILY MEAN =87.9 Deg F DATE OF OCCURRENCE =7/11
MINIMUM TEMPERATURE =58.8 Deg F DATE OF OCCURRENCE =7/2 AT 0600 MINUMUM DAILY MEAN =65.9 Deg F DATE OF OCCURRENCE =7/2
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for AUGUST, 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 74.6 74.3 73.6 74.4 73.8 73.3 73.9 76.0 79.6 81.7 83.3 84.9 85.5 86.8 88.1 88.6 88.0 86.8 85.0 82.1 81.3 81.5 81.3 81.7 80.8 88.6 73.3
2 81.3 79.8 79.7 78.9 79.5 79.6 79.8 80.0 ---------88.9 90.4 91.0 90.9 90.9 91.0 89.1 87.0 84.7 84.0 83.5 83.2 83.3 84.6 91.0 78.9
3 82.7 81.6 80.6 78.0 77.0 77.0 78.0 78.9 81.1 83.3 84.1 84.1 84.6 88.4 89.0 88.7 74.8 76.2 73.2 73.0 71.0 71.5 70.8 73.4 79.2 89.0 70.8
4 73.1 73.9 72.7 71.4 73.1 73.0 72.1 73.9 77.4 77.1 80.9 83.1 84.3 84.6 85.1 86.0 85.3 86.2 84.2 81.4 80.4 80.1 79.2 79.1 79.1 86.2 71.4
5 80.2 79.6 78.7 77.0 77.3 77.3 78.7 80.2 82.1 84.3 84.8 87.5 90.0 88.7 74.8 79.1 83.0 84.2 84.1 80.7 79.7 80.9 80.1 77.9 81.3 90.0 74.8
6 78.6 81.1 78.4 76.5 77.2 77.1 76.5 79.7 81.3 82.0 85.3 88.0 89.3 89.7 90.1 90.5 91.2 90.6 88.7 85.5 84.6 83.9 85.0 84.7 84.0 91.2 76.5
7 83.2 81.1 78.8 80.2 77.6 75.9 75.9 78.8 79.9 82.7 85.3 86.2 86.2 87.0 87.4 88.0 87.8 87.0 84.7 82.3 80.4 80.2 80.4 80.3 82.4 88.0 75.9
8 77.9 75.8 76.6 76.9 75.3 73.4 74.8 75.7 74.3 77.5 80.5 82.4 82.9 84.1 84.5 84.5 84.2 84.5 82.5 80.1 78.4 78.8 77.8 77.1 79.2 84.5 73.4
9 74.5 74.3 74.1 73.2 73.7 73.9 71.7 73.1 72.9 74.0 78.9 81.2 83.8 78.5 71.4 77.9 80.7 81.0 74.3 72.7 75.7 75.5 74.6 75.1 75.7 83.8 71.4
10 73.1 73.2 72.9 71.9 71.0 71.1 71.6 73.4 75.1 76.6 79.8 82.7 82.4 80.8 82.2 81.7 77.4 80.2 78.5 76.9 77.7 78.6 77.6 77.8 76.8 82.7 71.0
11 76.2 75.0 73.5 73.4 71.8 69.8 70.2 71.5 72.9 74.7 76.6 79.2 80.0 80.8 82.3 83.5 83.2 83.0 81.5 76.1 71.2 69.6 67.6 64.8 75.3 83.5 64.8
12 65.3 63.5 62.9 64.1 66.2 65.3 64.9 66.2 69.0 71.7 73.8 74.9 68.6 63.8 61.7 61.0 59.3 59.7 62.9 63.5 64.6 63.1 61.8 63.4 65.0 74.9 59.3
13 61.4 61.0 59.8 62.6 61.5 60.6 60.5 62.6 66.6 68.2 69.7 71.3 73.0 75.1 76.4 76.6 68.4 62.5 62.9 63.1 66.5 66.9 65.2 65.1 66.1 76.6 59.8
14 67.6 66.2 65.3 65.9 65.8 65.9 67.1 68.4 69.9 70.7 72.3 73.7 75.0 73.3 74.1 75.1 76.2 76.5 74.9 72.2 71.7 71.8 72.0 72.5 71.0 76.5 65.3
15 72.6 71.5 70.9 70.0 69.5 68.6 68.8 70.5 72.4 75.1 76.8 78.0 79.8 81.7 82.4 82.8 82.8 82.3 80.2 77.3 76.8 77.5 76.4 79.0 76.0 82.8 68.6
16 74.9 73.0 70.9 71.1 69.3 67.9 68.7 72.0 73.7 75.2 77.5 78.6 80.2 82.3 84.3 85.0 85.4 85.0 82.9 80.8 79.8 79.6 79.5 79.1 77.4 85.4 67.9
17 76.1 75.3 74.7 74.2 72.4 72.3 73.5 74.4 76.4 79.1 71.0 63.6 65.7 60.6 60.7 64.2 66.6 68.1 68.8 68.9 69.8 69.4 66.7 64.4 69.9 79.1 60.6
18 60.4 62.6 66.2 65.0 64.7 64.8 65.5 69.4 71.4 72.3 73.0 75.5 76.3 75.1 75.3 72.6 67.5 62.8 62.7 62.0 64.2 64.1 64.5 66.5 67.7 76.3 60.4
19 67.6 66.0 68.8 68.8 68.2 68.4 68.8 70.0 71.9 72.9 74.5 76.0 77.5 79.0 79.5 81.4 81.5 80.7 79.0 76.5 75.8 76.6 76.9 76.0 74.3 81.5 66.0
20 76.4 75.7 74.9 73.7 73.0 72.4 73.0 73.9 75.3 76.9 78.8 80.8 81.7 84.2 86.0 86.4 86.5 85.6 82.8 81.5 80.8 80.4 80.3 80.6 79.2 86.5 72.4
21 81.0 74.7 73.2 72.4 71.8 71.7 71.7 73.5 75.7 79.6 82.2 83.1 84.1 85.4 83.9 81.7 80.5 79.3 76.3 73.5 74.0 72.7 72.8 73.1 77.0 85.4 71.7
22 72.7 73.1 72.0 70.7 69.4 67.3 68.5 70.8 71.3 71.3 71.1 76.6 77.7 77.7 76.9 77.1 78.4 78.1 75.9 74.7 73.7 71.9 70.7 69.9 73.2 78.4 67.3
23 69.4 68.8 67.8 67.0 66.1 64.8 65.3 66.9 68.2 70.6 72.4 74.2 72.1 75.3 78.5 79.4 79.8 79.6 78.2 77.3 76.7 76.0 75.4 74.4 72.7 79.8 64.8
24 73.7 72.4 71.3 70.5 68.9 68.0 68.4 69.6 70.6 71.6 72.8 75.1 76.4 76.8 77.1 76.4 76.2 74.5 66.8 63.0 61.7 60.8 61.2 62.0 70.2 77.1 60.8
25 62.6 61.0 62.7 57.2 60.8 60.7 60.8 62.7 65.6 67.9 69.4 71.1 72.1 72.9 72.9 68.9 67.0 64.6 62.5 59.5 57.3 56.9 56.2 56.4 63.7 72.9 56.2
26 56.6 55.0 54.4 54.6 54.2 53.7 53.5 56.4 58.2 59.6 61.8 63.4 65.2 66.2 67.2 67.6 67.7 67.4 64.8 62.4 61.9 61.8 61.7 61.8 60.7 67.7 53.5
27 61.9 61.4 61.6 60.9 60.0 60.4 62.1 65.2 67.2 69.6 71.1 73.5 75.8 78.1 78.4 78.6 79.2 79.2 76.6 74.0 72.8 72.5 73.5 72.9 70.3 79.2 60.0
28 74.9 73.7 71.6 70.2 69.6 70.0 72.2 71.7 73.0 74.5 75.2 76.6 76.8 77.0 76.3 76.6 76.4 75.4 72.7 72.1 70.1 68.3 65.8 65.4 72.8 77.0 65.4
29 64.4 62.0 61.5 59.6 58.2 56.7 57.2 57.4 61.1 63.8 65.2 66.9 68.3 70.1 69.7 70.1 70.3 70.0 66.5 65.5 64.9 63.6 63.6 62.6 64.1 70.3 56.7
30 62.8 62.5 61.8 61.4 61.4 61.6 61.5 64.7 66.0 67.4 68.7 70.7 72.8 74.8 76.3 76.8 76.1 75.2 71.7 69.3 70.1 69.5 69.0 68.1 68.3 76.8 61.4
31 67.6 67.5 67.5 67.1 66.7 66.9 66.9 69.6 71.1 71.8 74.1 76.0 77.3 79.3 81.0 81.4 81.0 79.7 76.2 74.6 74.2 73.7 75.1 75.4 73.4 81.4 66.7
MEAN 71.8 70.9 70.3 69.6 69.2 68.7 69.1 70.9 72.4 74.1 75.7 77.7 78.6 79.0 78.9 79.3 78.5 77.9 75.8 73.8 73.3 72.9 72.5 72.4 73.9
MAX 83.2 81.6 80.6 80.2 79.5 79.6 79.8 80.2 82.1 84.3 85.3 88.9 90.4 91.0 90.9 90.9 91.2 90.6 88.7 85.5 84.6 83.9 85.0 84.7 91.2
MIN 56.6 55.0 54.4 54.6 54.2 53.7 53.5 56.4 58.2 59.6 61.8 63.4 65.2 60.6 60.7 61.0 59.3 59.7 62.5 59.5 57.3 56.9 56.2 56.4 53.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =741 DATA RECOVERY RATE =
MONTHLY MEAN =73.9 Deg F
MAXIMUM TEMPERATURE =91.2 Deg F DATE OF OCCURRENCE =8/6 AT 1700 MAXIMUM DAILY MEAN =84.6 Deg F DATE OF OCCURRENCE =8/2
MINIMUM TEMPERATURE =53.5 Deg F DATE OF OCCURRENCE =8/26 AT 0700 MINUMUM DAILY MEAN =60.7 Deg F DATE OF OCCURRENCE =8/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.6%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for SEPTEMBER, 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 75.4 73.7 73.3 71.8 71.4 72.2 71.4 73.6 75.8 77.2 80.7 83.0 84.1 85.2 83.7 83.9 83.4 83.2 79.9 77.7 76.9 76.6 76.3 75.7 77.8 85.2 71.4
2 75.2 73.9 75.1 74.5 73.9 71.8 72.6 74.9 76.2 77.4 79.1 81.3 82.2 83.0 82.8 82.9 82.4 79.3 73.6 74.4 75.3 75.4 75.7 73.0 76.9 83.0 71.8
3 69.2 67.1 69.1 70.8 70.9 70.4 70.8 71.3 72.9 74.6 75.4 75.6 78.0 79.3 78.5 68.4 68.8 68.2 68.2 65.4 68.1 65.1 65.1 65.7 70.7 79.3 65.1
4 64.2 64.7 60.3 59.8 62.8 63.8 64.1 63.1 64.6 65.6 67.3 68.6 70.2 70.3 70.2 69.5 69.4 68.6 67.3 66.6 65.9 65.8 65.5 63.5 65.9 70.3 59.8
5 64.2 63.9 63.4 61.7 60.6 60.3 61.0 62.2 64.7 66.1 68.6 71.1 72.4 74.3 75.4 76.6 76.4 75.1 71.6 70.3 70.0 69.8 69.7 68.8 68.3 76.6 60.3
6 67.8 68.1 68.6 68.6 68.6 68.5 68.9 70.8 72.4 73.7 75.3 76.6 78.3 79.4 79.0 79.8 79.8 78.9 75.3 74.0 73.1 72.3 72.0 72.0 73.4 79.8 67.8
7 72.4 72.2 71.1 70.9 70.4 69.9 69.5 72.5 74.6 75.4 77.4 79.1 80.6 82.7 83.0 82.5 82.1 81.2 79.1 77.1 76.0 75.5 75.3 75.7 76.1 83.0 69.5
8 75.9 75.4 75.0 74.2 74.5 73.3 73.0 72.8 73.9 74.9 76.8 79.0 79.1 81.2 82.6 82.8 81.2 79.4 77.0 76.3 75.3 74.1 73.8 73.8 76.5 82.8 72.8
9 73.1 73.5 72.9 72.8 72.1 72.1 71.1 72.2 74.0 75.4 76.9 79.5 80.0 77.2 75.0 77.3 78.2 76.5 75.6 74.6 69.7 69.5 69.2 69.0 74.1 80.0 69.0
10 69.0 68.9 69.1 68.4 68.2 68.2 68.7 70.3 71.0 72.0 74.2 75.0 77.2 79.3 79.0 78.2 78.4 77.4 75.4 74.2 72.7 68.7 69.9 68.9 72.6 79.3 68.2
11 69.4 69.9 69.1 70.3 70.2 69.5 69.3 69.7 69.4 72.2 75.0 75.8 76.8 77.3 78.0 78.5 78.8 78.4 77.3 76.2 75.4 74.2 68.5 63.6 73.0 78.8 63.6
12 58.1 57.9 57.0 55.8 53.3 51.1 49.7 50.0 51.6 54.0 54.1 55.1 56.1 56.6 58.1 58.2 57.8 56.8 54.9 53.9 53.2 52.7 53.0 53.7 54.7 58.2 49.7
13 51.8 51.0 51.2 50.8 49.9 50.6 50.1 53.7 56.1 57.5 58.7 60.2 61.7 63.8 65.0 65.3 64.9 63.4 60.9 59.8 60.4 60.9 59.6 59.1 57.8 65.3 49.9
14 58.5 58.1 58.9 60.0 62.7 62.4 61.2 59.7 63.8 66.6 69.0 72.0 74.9 76.5 77.0 76.9 77.2 75.5 71.3 70.2 69.8 68.6 70.9 69.9 68.0 77.2 58.1
15 70.2 69.2 68.1 68.1 67.7 66.3 66.1 68.3 69.3 69.5 71.2 73.7 75.0 75.8 76.8 76.3 71.9 71.6 68.9 68.6 66.9 67.7 68.1 67.6 70.1 76.8 66.1
16 68.2 67.7 66.0 64.1 62.4 62.7 62.7 63.3 65.0 67.2 68.4 70.0 70.4 70.3 70.1 68.1 66.3 66.1 66.0 66.8 66.9 66.7 66.0 63.5 66.4 70.4 62.4
17 59.2 55.9 51.8 50.7 49.3 49.1 47.9 47.2 46.2 47.6 50.1 49.0 49.5 50.7 50.1 52.2 50.7 50.4 49.3 48.4 48.0 48.7 49.8 50.6 50.1 59.2 46.2
18 50.3 49.8 49.4 49.0 49.7 49.6 49.9 50.1 50.3 53.7 55.7 58.5 58.9 59.2 60.9 61.3 60.5 58.2 55.7 55.1 54.5 54.0 54.1 54.5 54.3 61.3 49.0
19 54.9 54.3 53.5 53.0 53.2 53.7 53.5 55.7 56.3 58.6 60.7 63.2 64.7 65.5 66.5 66.2 65.6 64.4 62.4 62.3 62.4 61.5 62.6 62.7 59.9 66.5 53.0
20 61.8 61.2 61.8 60.6 58.7 58.8 58.7 61.1 62.4 63.2 63.5 66.5 68.3 69.5 69.6 69.3 69.1 67.5 65.6 64.4 64.6 63.5 64.0 63.9 64.1 69.6 58.7
21 62.4 62.4 61.1 61.1 60.7 60.1 60.2 60.0 59.0 61.3 62.8 64.7 67.2 67.9 68.1 68.1 67.6 65.8 64.8 64.0 63.1 61.8 62.5 62.1 63.3 68.1 59.0
22 60.1 59.4 57.8 57.3 56.7 56.4 56.2 57.0 59.3 61.8 63.4 65.1 67.1 67.7 68.1 68.1 67.5 65.5 63.1 63.3 62.4 62.0 61.5 61.8 62.0 68.1 56.2
23 62.1 61.8 60.0 58.7 59.0 59.3 58.7 62.2 62.9 63.8 64.7 66.0 67.5 68.4 67.6 67.0 66.4 65.1 62.8 62.1 62.1 62.3 62.6 63.3 63.2 68.4 58.7
24 62.9 62.8 61.1 60.6 61.6 61.4 61.2 62.4 63.8 64.9 66.0 68.0 69.1 70.9 71.5 71.6 71.1 69.1 66.6 66.3 66.7 67.4 68.6 69.5 66.1 71.6 60.6
25 69.6 69.9 70.2 69.1 67.2 67.3 67.8 69.3 71.3 73.4 74.5 76.1 78.3 79.8 80.8 81.4 80.9 79.0 75.5 73.8 75.7 74.1 73.6 73.6 73.8 81.4 67.2
26 73.5 72.9 71.7 69.6 68.9 69.1 69.4 71.2 73.4 75.1 77.5 78.9 79.5 81.0 78.9 77.6 76.7 74.1 73.0 72.0 71.4 70.8 71.1 70.8 73.7 81.0 68.9
27 70.4 70.0 69.7 68.6 68.3 68.2 68.1 70.5 71.3 72.5 74.3 75.1 76.0 77.9 78.5 78.5 77.8 75.1 73.3 73.0 72.3 72.1 72.4 72.3 72.8 78.5 68.1
28 72.4 72.5 73.1 73.2 71.4 70.6 71.0 72.2 75.3 78.4 79.4 80.0 81.7 83.4 84.2 84.1 83.5 80.8 77.9 77.3 77.1 77.2 76.6 75.7 77.0 84.2 70.6
29 75.3 76.0 76.0 74.9 74.9 73.7 75.8 75.5 77.9 78.2 78.9 81.1 80.3 80.9 81.5 82.7 80.6 79.5 76.2 76.5 78.6 77.7 75.2 71.8 77.5 82.7 71.8
30 65.1 62.9 61.9 60.7 60.3 60.4 60.0 60.9 61.6 61.2 64.0 66.1 66.6 66.1 66.8 66.7 65.5 62.6 60.0 60.1 60.6 60.8 59.8 59.8 62.5 66.8 59.8
MEAN 66.1 65.6 64.9 64.3 64.0 63.7 63.6 64.8 66.2 67.8 69.5 71.1 72.4 73.4 73.6 73.3 72.7 71.2 69.0 68.2 67.8 67.2 67.1 66.5 68.1
MAX 75.9 76.0 76.0 74.9 74.9 73.7 75.8 75.5 77.9 78.4 80.7 83.0 84.1 85.2 84.2 84.1 83.5 83.2 79.9 77.7 78.6 77.7 76.6 75.7 85.2
MIN 50.3 49.8 49.4 49.0 49.3 49.1 47.9 47.2 46.2 47.6 50.1 49.0 49.5 50.7 50.1 52.2 50.7 50.4 49.3 48.4 48.0 48.7 49.8 50.6 46.2
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =68.1 Deg F
MAXIMUM TEMPERATURE =85.2 Deg F DATE OF OCCURRENCE =9/1 AT 1400 MAXIMUM DAILY MEAN =77.8 Deg F DATE OF OCCURRENCE =9/1
MINIMUM TEMPERATURE =46.2 Deg F DATE OF OCCURRENCE =9/17 AT 0900 MINUMUM DAILY MEAN =50.1 Deg F DATE OF OCCURRENCE =9/17
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott / Third Quarter 2024 Summary Report
Trinity Consultants
APPENDIX C: EQUIPMENT CALIBRATIONS FOR THIRD QUARTER 2024
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.01956 Ta (°C)23.3
Correlation 0.99995 Ta (°K)296.5
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 25.700 47.999 578.903 0.923 1.089 0.0632
1 2.63 26.800 50.053 576.849 0.920 1.085 0.0630
2 2.60 27.900 52.107 574.794 0.917 1.079 0.0627
3 2.58 29.100 54.349 572.553 0.913 1.075 0.0624
4 2.54 32.100 59.951 566.950 0.904 1.066 0.0619
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.089 1.106 1.6% -2.1%
1.085 1.102 1.6%-2.5%
1.079 1.098 1.8%-2.8%
1.075 1.093 1.7%<10.1% Design*
1.066 1.082 1.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.1 39.407 587.494 0.9371
Operational Flow Rate: 1.1234
%DIFF: -0.58%<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"
7/3/24
P7953
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.01956 Ta (°C)23.3
Correlation 0.99995 Ta (°K)296.5
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 25.400 47.438 579.463 0.924 1.089 0.0632
1 2.60 26.800 50.053 576.849 0.920 1.079 0.0627
2 2.57 28.500 53.228 573.674 0.915 1.073 0.0623
3 2.55 30.000 56.029 570.872 0.911 1.068 0.0621
4 2.50 32.700 61.072 565.830 0.903 1.058 0.0615
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.089 1.109 1.9% -1.8%
1.079 1.104 2.3%-2.3%
1.073 1.098 2.3%-2.9%
1.068 1.092 2.2%<10.1% Design*
1.058 1.082 2.2%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.4 39.968 586.934 0.9362
Operational Flow Rate: 1.1244
%DIFF: -0.50%<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"
7/3/24
P7958
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.7
Slope (m)1.04605 Pa(mm Hg)626.8
Intercept (b)-0.01956 Ta (°C)24.6
Correlation 0.99995 Ta (°K)297.8
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 2.67 25.600 47.812 579.015 0.924 1.095 0.0635
1 2.65 26.900 50.240 576.587 0.920 1.091 0.0632
2 2.64 28.100 52.481 574.346 0.916 1.089 0.0631
3 2.61 30.100 56.216 570.610 0.910 1.083 0.0628
4 2.57 31.300 58.457 568.369 0.907 1.075 0.0623
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.095 1.111 1.4% -1.7%
1.091 1.106 1.4%-2.1%
1.089 1.102 1.1%-2.5%
1.083 1.094 1.0%<10.1% Design*
1.075 1.090 1.4%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.3 39.781 587.046 0.9365
Operational Flow Rate: 1.1274
%DIFF: -0.23%<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"
7/3/24
P7959
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.01956 Ta (°C)23.7
Correlation 0.99995 Ta (°K)296.9
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 2.70 26.000 48.559 578.343 0.923 1.100 0.0638
1 2.68 28.000 52.294 574.607 0.917 1.096 0.0636
2 2.66 29.600 55.282 571.619 0.912 1.092 0.0634
3 2.65 30.800 57.524 569.378 0.908 1.090 0.0632
4 2.63 32.400 60.512 566.390 0.903 1.086 0.0630
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.100 1.123 2.2% -0.6%
1.096 1.116 1.8%-1.3%
1.092 1.110 1.6%-1.8%
1.090 1.105 1.4%<10.1% Design*
1.086 1.099 1.2%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.8 40.715 586.187 0.9351
Operational Flow Rate: 1.1394
%DIFF: 0.83%<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"
7/3/24
P7954
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.7
Slope (m)1.04605 Pa(mm Hg)626.8
Intercept (b)-0.01956 Ta (°C)23.7
Correlation 0.99995 Ta (°K)296.9
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 2.58 24.800 46.318 580.509 0.926 1.075 0.0624
1 2.56 26.500 49.493 577.334 0.921 1.071 0.0622
2 2.47 28.700 53.601 573.225 0.914 1.053 0.0611
3 2.42 30.900 57.710 569.116 0.908 1.042 0.0605
4 2.35 32.500 60.699 566.128 0.903 1.027 0.0596
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)Difference c Difference
1.075 1.110 3.2% -1.8%
1.071 1.104 3.0%-2.3%
1.053 1.095 4.1%-3.1%
1.042 1.087 4.3%<10.1% Design*
1.027 1.081 5.2%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.9 39.034 587.793 0.9377
Operational Flow Rate: 1.1248
%DIFF: -0.46%<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"
7/3/24
P7955
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.3
Slope (m)1.04605 Pa(mm Hg)615.3
Intercept (b)-0.01956 Ta (°C)20.0
Correlation 0.99995 Ta (°K)293.2
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 2.74 25.400 47.438 567.837 0.923 1.111 0.0649
1 2.71 27.600 51.547 563.729 0.916 1.105 0.0645
2 2.68 29.200 54.535 560.740 0.911 1.099 0.0642
3 2.65 32.000 59.765 555.511 0.903 1.093 0.0638
4 2.55 36.000 67.235 548.040 0.891 1.072 0.0626
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.111 1.124 1.2% -0.5%
1.105 1.117 1.1%-1.2%
1.099 1.112 1.2%-1.6%
1.093 1.104 1.0%<10.1% Design*
1.072 1.092 1.8%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.2 39.594 575.681 0.9356
Operational Flow Rate: 1.1390
%DIFF: 0.80%<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
7/3/24
A
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.2
Slope (m)1.04605 Pa(mm Hg)615.2
Intercept (b)-0.01956 Ta (°C)19.7
Correlation 0.99995 Ta (°K)292.9
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) LOOKUP (m3/min)
open 2.72 25.000 46.691 568.509 0.924 1.106 0.0647
1 2.70 27.100 50.613 564.587 0.918 1.102 0.0644
2 2.64 29.300 54.722 560.479 0.911 1.090 0.0637
3 2.60 31.700 59.204 555.996 0.904 1.082 0.0632
4 2.55 34.000 63.500 551.701 0.897 1.072 0.0626
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.106 1.115 0.8% -1.3%
1.102 1.109 0.6%-1.9%
1.090 1.102 1.1%-2.5%
1.082 1.095 1.2%<10.1% Design*
1.072 1.088 1.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.0 39.221 575.980 0.9362
Operational Flow Rate: 1.1290
%DIFF: -0.09%<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
7/3/24
B
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.4
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.01956 Ta (°C)19.8
Correlation 0.99995 Ta (°K)293.0
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 2.70 25.600 47.812 567.539 0.922 1.103 0.0644
1 2.68 26.600 49.679 565.671 0.919 1.099 0.0642
2 2.62 28.200 52.668 562.683 0.914 1.086 0.0635
3 2.60 30.200 56.403 558.948 0.908 1.082 0.0632
4 2.55 31.800 59.391 555.959 0.903 1.072 0.0626
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.103 1.117 1.3% -1.2%
1.099 1.114 1.4%-1.4%
1.086 1.109 2.1%-1.9%
1.082 1.103 1.9%<10.1% Design*
1.072 1.098 2.4%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.3 39.781 575.570 0.9354
Operational Flow Rate: 1.1320
%DIFF: 0.18%<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
7/3/24
C
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.01956 Ta (°C)20.6
Correlation 0.99995 Ta (°K)293.8
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) LOOKUP (m3/min)
open 2.64 25.300 47.251 568.174 0.923 1.092 0.0637
1 2.60 28.200 52.668 562.758 0.914 1.084 0.0632
2 2.55 30.500 56.963 558.462 0.907 1.073 0.0626
3 2.50 31.500 58.831 556.595 0.904 1.063 0.0620
4 2.47 33.800 63.126 552.299 0.897 1.057 0.0617
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.092 1.122 2.8% -0.7%
1.084 1.113 2.7%-1.5%
1.073 1.106 3.0%-2.1%
1.063 1.103 3.8%<10.1% Design*
1.057 1.096 3.7%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.1 39.407 576.018 0.9360
Operational Flow Rate: 1.1360
%DIFF: 0.53%<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
7/3/24
D
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.01956 Ta (°C)20.3
Correlation 0.99995 Ta (°K)293.5
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)
open 2.58 25.100 46.878 568.548 0.924 1.079 0.0630
1 2.55 27.100 50.613 564.812 0.918 1.073 0.0626
2 2.48 29.300 54.722 560.704 0.911 1.058 0.0618
3 2.45 31.000 57.897 557.529 0.906 1.052 0.0614
4 2.40 32.400 60.512 554.914 0.902 1.041 0.0608
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.079 1.123 4.0% -0.6%
1.073 1.121 4.5%-0.8%
1.058 1.114 5.3%-1.4%
1.052 1.109 5.4%<10.1% Design*
1.041 1.105 6.1%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.0 39.221 576.205 0.9363
Operational Flow Rate: 1.1410
%DIFF: 0.97%<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
7/3/24
E
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.01956 Ta (°C)21.1
Correlation 0.99995 Ta (°K)294.3
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 25.500 47.625 567.801 0.923 1.095 0.0638
1 2.62 27.100 50.613 564.812 0.918 1.089 0.0635
2 2.58 28.700 53.601 561.824 0.913 1.080 0.0630
3 2.53 30.400 56.776 558.649 0.908 1.070 0.0624
4 2.50 31.900 59.578 555.848 0.903 1.064 0.0620
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.095 1.096 0.1% -3.0%
1.089 1.087 -0.2%-3.8%
1.080 1.077 -0.3%-4.7%
1.070 1.066 -0.4%<10.1% Design*
1.064 1.053 -1.0%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.3 39.781 575.645 0.9354
Operational Flow Rate: 1.1120
%DIFF: -1.59%<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
7/3/24
F
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.01956 Ta (°C)21.1
Correlation 0.99995 Ta (°K)294.3
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 25.600 47.812 567.764 0.922 1.095 0.0638
1 2.63 26.900 50.240 565.336 0.918 1.091 0.0636
2 2.59 28.100 52.481 563.095 0.915 1.082 0.0631
3 2.58 30.000 56.029 559.546 0.909 1.080 0.0630
4 2.55 32.500 60.699 554.877 0.901 1.074 0.0626
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.095 1.125 2.8% -0.4%
1.091 1.121 2.8%-0.8%
1.082 1.118 3.3%-1.1%
1.080 1.112 2.9%<10.1% Design*
1.074 1.104 2.8%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.4 39.968 575.608 0.9351
Operational Flow Rate: 1.1390
%DIFF: 0.80%<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
7/3/24
G
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.6
Slope (m)1.04605 Pa(mm Hg)615.5
Intercept (b)-0.01956 Ta (°C)21.6
Correlation 0.99995 Ta (°K)294.8
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) LOOKUP (m3/min)
open 2.66 25.400 47.438 568.062 0.923 1.098 0.0639
1 2.65 27.010 50.445 565.055 0.918 1.096 0.0638
2 2.60 28.900 53.975 561.526 0.912 1.085 0.0632
3 2.56 30.600 57.150 558.351 0.907 1.077 0.0627
4 2.54 32.300 60.325 555.176 0.902 1.073 0.0625
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)Difference c Difference
1.098 1.123 2.3% -0.6%
1.096 1.117 2.0%-1.2%
1.085 1.111 2.4%-1.7%
1.077 1.106 2.7%<10.1% Design*
1.073 1.101 2.6%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 21.1 39.407 576.093 0.9360
Operational Flow Rate: 1.1350
%DIFF: 0.44%<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
7/3/24
H
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

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

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.0196 Ta (°C)23.3
Correlation 0.99995 Ta (°K)296.5
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 25.700 47.999 578.903 0.923 1.089 0.0632
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.089 1.106 1.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.100 39.407 587.494 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.123 -2.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1056
Comments:
Mike Peterson
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "A"
7/3/24
P7953
0.00455696
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.0196 Ta (°C)23.3
Correlation 0.99995 Ta (°K)296.5
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 25.400 47.438 579.463 0.924 1.089 0.0632
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.089 1.109 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.400 39.968 586.934 0.936
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.124 -2.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1033
Comments:
Mike Peterson
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "B"
7/3/24
P7958
0.00638986
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.7
Slope (m)1.04605 Pa(mm Hg)626.8
Intercept (b)-0.0196 Ta (°C)24.6
Correlation 0.99995 Ta (°K)297.8
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)
2.67 25.600 47.812 579.015 0.924 1.095 0.0635
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.095 1.111 1.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.300 39.781 587.046 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.127 -1.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1111
Comments:
Mike Peterson
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "C"
7/3/24
P7959
0.00676369
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.8
Slope (m)1.04605 Pa(mm Hg)626.9
Intercept (b)-0.0196 Ta (°C)23.7
Correlation 0.99995 Ta (°K)296.9
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)
2.70 26.000 48.559 578.343 0.923 1.100 0.0638
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.100 1.123 2.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.800 40.715 586.187 0.935
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.139 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1148
Comments:
Mike Peterson
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "D"
7/3/24
P7954
0.02030635
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(G-Factor)
Sampler Model
Sampler Location
Date
Serial Number
G-Factor
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)835.7
Slope (m)1.04605 Pa(mm Hg)626.8
Intercept (b)-0.0196 Ta (°C)23.7
Correlation 0.99995 Ta (°K)296.9
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)
2.58 24.800 46.318 580.509 0.926 1.075 0.0624
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.075 1.110 3.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
20.900 39.034 587.793 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.125 -3.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0885
Comments:
Mike Peterson
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
C3 "E"
7/3/24
P7955
0.00447091
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)840.3
Slope (m)1.04605 Pa(mm Hg)630.3
Intercept (b)-0.0196 Ta (°C)34.1
Correlation 0.99995 Ta (°K)307.3
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)
2.63 26.360 49.231 581.046 0.922 1.101 0.0628
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.101 1.122 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.230 41.518 588.759 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.138 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1162
Comments:
C3 "A"
8/2/24
P7953
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)840.3
Slope (m)1.04605 Pa(mm Hg)630.3
Intercept (b)-0.0196 Ta (°C)34.1
Correlation 0.99995 Ta (°K)307.3
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)
2.61 26.360 49.231 581.046 0.922 1.097 0.0626
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.097 1.124 2.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.280 41.611 588.666 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.140 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1115
Comments:
C3 "B"
8/2/24
P7958
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)840.3
Slope (m)1.04605 Pa(mm Hg)630.3
Intercept (b)-0.0196 Ta (°C)34.1
Correlation 0.99995 Ta (°K)307.3
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 26.300 49.119 581.158 0.922 1.105 0.0631
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.105 1.125 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.350 41.742 588.535 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.140 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1197
Comments:
C3 "C"
8/2/24
P7959
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)840.3
Slope (m)1.04605 Pa(mm Hg)630.3
Intercept (b)-0.0196 Ta (°C)34.1
Correlation 0.99995 Ta (°K)307.3
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)
2.72 26.790 50.034 580.243 0.921 1.120 0.0639
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.120 1.138 1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.750 42.489 587.788 0.933
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.154 0.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1345
Comments:
C3 "D"
8/2/24
P7954
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)840.3
Slope (m)1.04605 Pa(mm Hg)630.3
Intercept (b)-0.0196 Ta (°C)34.1
Correlation 0.99995 Ta (°K)307.3
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)
2.44 24.500 45.757 584.519 0.927 1.061 0.0605
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.061 1.129 6.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.880 38.996 591.280 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.143 -5.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0699
Comments:
C3 "E"
8/2/24
P7955
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)833.3
Slope (m)1.04605 Pa(mm Hg)625.0
Intercept (b)-0.0196 Ta (°C)16.3
Correlation 0.99995 Ta (°K)289.5
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)
2.73 25.130 46.934 578.092 0.925 1.094 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.094 1.096 0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.810 38.866 586.161 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.112 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1097
Comments:
C3 "A"
9/13/24
P7953
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)833.3
Slope (m)1.04605 Pa(mm Hg)625.0
Intercept (b)-0.0196 Ta (°C)16.3
Correlation 0.99995 Ta (°K)289.5
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)
2.73 25.250 47.158 577.868 0.925 1.094 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.094 1.098 0.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.050 39.314 585.712 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.114 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1092
Comments:
C3 "B"
9/13/24
P7958
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)833.3
Slope (m)1.04605 Pa(mm Hg)625.0
Intercept (b)-0.0196 Ta (°C)16.3
Correlation 0.99995 Ta (°K)289.5
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)
2.75 25.250 47.158 577.868 0.925 1.098 0.0645
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.098 1.098 0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.950 39.127 585.899 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.114 -1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1136
Comments:
C3 "C"
9/13/24
P7959
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)833.3
Slope (m)1.04605 Pa(mm Hg)625.0
Intercept (b)-0.0196 Ta (°C)16.3
Correlation 0.99995 Ta (°K)289.5
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)
2.83 25.710 48.017 577.009 0.923 1.113 0.0654
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.113 1.112 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.260 39.706 585.320 0.936
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.128 0.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1300
Comments:
C3 "D"
9/13/24
P7954
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)833.3
Slope (m)1.04605 Pa(mm Hg)625.0
Intercept (b)-0.0196 Ta (°C)16.3
Correlation 0.99995 Ta (°K)289.5
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)
2.68 24.810 46.336 578.690 0.926 1.084 0.0637
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.084 1.097 1.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.640 38.548 586.478 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.113 -2.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0989
Comments:
C3 "E"
9/13/24
P7955
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.3
Slope (m)1.04605 Pa(mm Hg)615.3
Intercept (b)-0.0196 Ta (°C)20.0
Correlation 0.99995 Ta (°K)293.2
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)
2.74 25.400 47.438 567.837 0.923 1.111 0.0649
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.111 1.124 1.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.200 39.594 575.681 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.139 -0.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1256
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
A
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.2
Slope (m)1.04605 Pa(mm Hg)615.2
Intercept (b)-0.0196 Ta (°C)19.7
Correlation 0.99995 Ta (°K)292.9
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) LOOKUP (m3/min)
2.72 25.000 46.691 568.509 0.924 1.106 0.0647
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.106 1.115 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.000 39.221 575.980 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.129 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1203
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
B
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.4
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.0196 Ta (°C)19.8
Correlation 0.99995 Ta (°K)293.0
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)
2.70 25.600 47.812 567.539 0.922 1.103 0.0644
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.103 1.117 1.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.300 39.781 575.570 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.132 -1.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1172
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
C
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.0196 Ta (°C)20.6
Correlation 0.99995 Ta (°K)293.8
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) LOOKUP (m3/min)
2.64 25.300 47.251 568.174 0.923 1.092 0.0637
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.092 1.122 2.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.100 39.407 576.018 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.136 -2.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1046
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
D
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.0196 Ta (°C)20.3
Correlation 0.99995 Ta (°K)293.5
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)
2.58 25.100 46.878 568.548 0.924 1.079 0.0630
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.079 1.123 4.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.000 39.221 576.205 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.141 -3.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0948
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
E
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.5
Slope (m)1.04605 Pa(mm Hg)615.4
Intercept (b)-0.0196 Ta (°C)21.1
Correlation 0.99995 Ta (°K)294.3
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 25.500 47.625 567.801 0.923 1.095 0.0638
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.095 1.096 0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.300 39.781 575.645 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.112 -1.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1108
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
F
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)21.1
Correlation 0.99995 Ta (°K)294.3
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 25.600 47.812 567.764 0.922 1.095 0.0638
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.095 1.125 2.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.400 39.968 575.608 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.139 -2.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1074
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
G
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Calibration Orifice S/N 2323 Leak Performed (Pass/Fail)PASS
Calibration Date 1/18/24 Pressure (mb)820.6
Slope (m)1.04605 Pa(mm Hg)615.5
Intercept (b)-0.0196 Ta (°C)21.6
Correlation 0.99995 Ta (°K)294.8
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) LOOKUP (m3/min)
2.66 25.400 47.438 568.062 0.923 1.098 0.0639
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.098 1.123 2.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20)(mm Hg) (mm Hg) (mm Hg)
21.100 39.407 576.093 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.135 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1088
Comments:
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
Hi Country
7/3/24
H
Mike Peterson
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.0
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)
2.60 26.320 49.156 570.319 0.921 1.099 0.0630
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.141 3.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.100 41.275 578.201 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.154 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1094
Comments:
Hi Country
8/2/24
A
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.62 26.020 48.596 570.880 0.922 1.103 0.0632
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.103 1.132 2.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.950 40.995 578.481 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.145 -1.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1147
Comments:
Hi Country
8/2/24
B
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.65 26.370 49.250 570.226 0.920 1.109 0.0636
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.109 1.134 2.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.090 41.256 578.220 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.148 -0.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1221
Comments:
Hi Country
8/2/24
C
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.60 26.060 48.671 570.805 0.921 1.099 0.0630
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.139 3.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.090 41.256 578.220 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.152 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1097
Comments:
Hi Country
8/2/24
D
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.53 25.960 48.484 570.992 0.922 1.084 0.0622
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.084 1.145 5.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.860 40.827 578.649 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.158 -3.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0928
Comments:
Hi Country
8/2/24
E
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.59 26.340 49.194 570.282 0.921 1.097 0.0629
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.097 1.125 2.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.220 41.499 577.977 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.138 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1085
Comments:
Hi Country
8/2/24
F
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.61 26.410 49.325 570.151 0.920 1.101 0.0631
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.101 1.140 3.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.270 41.593 577.883 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.154 -1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1128
Comments:
Hi Country
8/2/24
G
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)825.9
Slope (m)1.04605 Pa(mm Hg)619.5
Intercept (b)-0.0196 Ta (°C)30.9
Correlation 0.99995 Ta (°K)304.1
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)
2.60 26.150 48.839 570.637 0.921 1.099 0.0630
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.099 1.137 3.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.110 41.294 578.182 0.933
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.150 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1098
Comments:
Hi Country
8/2/24
H
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)13.3
Correlation 0.99995 Ta (°K)286.5
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)
2.80 25.140 46.953 566.523 0.923 1.112 0.0657
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.112 1.112 0.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.910 39.053 574.423 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.127 -0.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1268
Comments:
Hi Country
9/13/24
A
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)13.3
Correlation 0.99995 Ta (°K)286.5
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)
2.72 24.780 46.280 567.195 0.925 1.096 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.096 1.104 0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.560 38.399 575.077 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.118 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1099
Comments:
Hi Country
9/13/24
B
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)13.3
Correlation 0.99995 Ta (°K)286.5
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 25.200 47.065 566.411 0.923 1.104 0.0652
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.104 1.107 0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.850 38.940 574.535 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.122 -1.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1189
Comments:
Hi Country
9/13/24
C
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)13.3
Correlation 0.99995 Ta (°K)286.5
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)
2.74 25.050 46.785 566.691 0.924 1.100 0.0650
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.100 1.111 1.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.750 38.754 574.722 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.126 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1147
Comments:
Hi Country
9/13/24
D
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)14.4
Correlation 0.99995 Ta (°K)287.6
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)
2.59 24.730 46.187 567.289 0.925 1.072 0.0632
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.072 1.118 4.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 574.815 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.132 -4.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0834
Comments:
Hi Country
9/13/24
E
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)14.4
Correlation 0.99995 Ta (°K)287.6
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)
2.73 25.210 47.083 566.392 0.923 1.100 0.0649
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.100 1.098 -0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.840 38.922 574.554 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.114 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1161
Comments:
Hi Country
9/13/24
F
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)14.4
Correlation 0.99995 Ta (°K)287.6
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)
2.72 25.320 47.289 566.187 0.923 1.098 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.098 1.114 1.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.950 39.127 574.348 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.128 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1117
Comments:
Hi Country
9/13/24
G
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)817.9
Slope (m)1.04605 Pa(mm Hg)613.5
Intercept (b)-0.0196 Ta (°C)14.4
Correlation 0.99995 Ta (°K)287.6
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)
2.68 25.060 46.803 566.672 0.924 1.090 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.090 1.110 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.820 38.884 574.591 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.125 -2.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1045
Comments:
Hi Country
9/13/24
H
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

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

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants
PERFORMANCE AUDIT OF
PARTICULATE MONITORING EQUIPMENT
AT RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
AUGUST 2024

Prepared By:

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

September 2024

Project No. 244501.0030

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 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
PERFORMANCE AUDIT RESULTS 4-1
4.1 Copperton C3 Monitoring Station ............................................................................. 4-1
4.2 Hi-Country Monitoring Station ................................................................................. 4-1
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
Table 3-2 Performance Audit Methods and Acceptable Tolerances ......................................................... 3-2
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 .......................................................... 4-1
Table 5-1 Performance Audit Results of Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring
Stations ............................................................................................................................................. 5-1

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 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.

On August 29, 2024, Trinity Consultants (Trinity) conducted a quality assurance performance audit of the
Copperton C3 and Hi-Country PM10 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 on this day.

PM10 sampler 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, and,
► 40 CFR Part 50, Appendix J .

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
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
NA = Not Available.

Copies of audit equipment certifications are included in Appendix A.
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants 3-1
PERFORMANCE AUDIT PROCEDURES
The following sections describe the PM10 sampler quality assurance performance checks conducted by Trinity
at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations on August 29, 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.

The latitude/longitude coordinates and elevations of the Copperton and Hi-Country air quality 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 instrumentation that is installed at the monitoring sites is presented in Table 3-1.
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants 3-2
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
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
3.2 Performance Audit Methods

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.

A summary of the audit methods and the acceptable tolerance for each method is presented in Table 3-2.
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

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants 4-1
PERFORMANCE AUDIT RESULTS
The following sections present the August 29, 2024 performance audit results for the PM10 samplers located
at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations.
4.1 Copperton C3 Monitoring Station

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 1.111 1.105 -0.5 -0.6
B 1.114 1.107 -0.6 -0.3
C 1.108 1.107 -0.1 -0.8
D 1.127 1.121 -0.5 0.9
E 1.103 1.105 0.2 -1.2

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.
4.2 Hi-Country Monitoring Station
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.
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 1.124 1.120 -0.3 0.5
B 1.108 1.111 0.3 -0.9
C 1.116 1.114 -0.2 -0.2
D 1.113 1.118 0.4 -0.3
E 1.097 1.122 2.2 -1.8
F 1.108 1.103 -0.5 -0.8
G 1.108 1.120 1.1 -0.9
H 1.111 1.116 0.5 -0.6

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants 4-2
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.

Copies of the performance Copperton C3 and Hi-Country audit field data sheets are included in Appendices B
and C, respectively.

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants 5-1
CONCLUSION
A performance audit was conducted by Trinity on the PM10 samplers at Rio Tinto Kennecott’s Copperton C3
and Hi-Country monitoring station on August 29, 2024. 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
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

As can be seen from Table 5-1, all particulate monitoring equipment passed the audit and appeared to be
operating within USEPA and UDAQ requirements for PM10 measurements for Special Purpose Monitoring (SPM)
stations.
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants A
APPENDIX A. AUDIT EQUIPMENT CERTIFICATIONS

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants B
APPENDIX B. PERFORMANCE AUDIT FIELD DATA SHEETS –
COPPERTON C3

Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)838.0
Slope (m)0.91055 Pa(mm Hg)628.6
Intercept (b)-0.0314 Ta (°C)20.0
Correlation 0.99985 Ta (°K)293.2
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 24.530 45.813 582.738 0.927 1.111 0.0649
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.111 1.105 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.130 39.463 589.088 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.118 -0.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1237
Comments:
C3 "A"
8/29/24
P7953
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)838.0
Slope (m)0.91055 Pa(mm Hg)628.6
Intercept (b)-0.0314 Ta (°C)20.0
Correlation 0.99985 Ta (°K)293.2
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)
2.07 24.680 46.094 582.458 0.927 1.114 0.0650
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.114 1.107 -0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.180 39.557 588.995 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.120 -0.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1267
Comments:
C3 "B"
8/29/24
P7958
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)838.0
Slope (m)0.91055 Pa(mm Hg)628.6
Intercept (b)-0.0314 Ta (°C)20.0
Correlation 0.99985 Ta (°K)293.2
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 24.730 46.187 582.365 0.927 1.108 0.0647
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.108 1.107 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.290 39.762 588.789 0.937
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.120 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1212
Comments:
C3 "C"
8/29/24
P7959
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)838.0
Slope (m)0.91055 Pa(mm Hg)628.6
Intercept (b)-0.0314 Ta (°C)20.0
Correlation 0.99985 Ta (°K)293.2
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)
2.12 25.130 46.934 581.618 0.925 1.127 0.0658
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.127 1.121 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.530 40.210 588.341 0.936
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.134 0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1402
Comments:
C3 "D"
8/29/24
P7954
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
(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)838.0
Slope (m)0.91055 Pa(mm Hg)628.6
Intercept (b)-0.0314 Ta (°C)20.0
Correlation 0.99985 Ta (°K)293.2
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)
2.03 24.500 45.757 582.794 0.927 1.103 0.0644
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)Difference c
1.103 1.105 0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.980 39.183 589.368 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)Difference
1.130 1.118 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1162
Comments:
C3 "E"
8/29/24
P7955
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 August 2024 Performance Audit
Trinity Consultants C
APPENDIX C. PERFORMANCE AUDIT FIELD DATA SHEETS – HI-
COUNTRY
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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 24.600 45.944 571.357 0.926 1.124 0.0661
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.124 1.120 -0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg) <---lookup
21.000 39.221 578.080 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.132 0.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1358
Comments:
Hi Country
8/29/24
A
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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)
2.04 24.280 45.346 571.954 0.927 1.108 0.0652
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.111 0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.850 38.940 578.360 0.937 <----Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.123 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1200
Comments:
Hi Country
8/29/24
B
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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 24.700 46.131 571.170 0.925 1.116 0.0656
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.116 1.114 -0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.120 39.445 577.856 0.936 <----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) = 1.1279
Comments:
Hi Country
8/29/24
C
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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 24.44 45.645 571.655 0.926 1.113 0.0655
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.113 1.118 0.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.78 38.810 578.491 0.937 lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.131 -0.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1262
Comments:
Hi Country
8/29/24
D
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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)
2.00 24.36 45.496 571.805 0.926 1.097 0.0645
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.097 1.122 2.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.66 38.586 578.715 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.135 -1.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1096
Comments:
Hi Country
8/29/24
E
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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)
2.04 24.76 46.243 571.058 0.925 1.108 0.0652
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.103 -0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.11 39.426 577.875 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.116 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1211
Comments:
Hi Country
8/29/24
F
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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)
2.04 24.59 45.925 571.375 0.926 1.108 0.0652
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.108 1.120 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.07 39.351 577.949 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.132 -0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1198
Comments:
Hi Country
8/29/24
G
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C
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)823.0
Slope (m)0.91055 Pa(mm Hg)617.3
Intercept (b)-0.0314 Ta (°C)16.0
Correlation 0.99985 Ta (°K)289.2
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 24.50 45.757 571.543 0.926 1.111 0.0653
Qa Qa (Sampler) % REF
(Orifice) (Lookup)Difference c
1.111 1.116 0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.92 39.071 578.230 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)Difference
1.130 1.129 -0.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1236
Comments:
Hi Country
8/29/24
H
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Docusign Envelope ID: C6A7CC6A-8EF8-4FD1-B498-9BC20005133C