DAQ-2024-010432

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 – 2nd 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,
Brandon Murphy
General Manager – Minerals
Date
14 August 2024
SUMMARY OF PM10 AND
METEOROLOGICAL DATA FROM
RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
SECOND QUARTER 2024

Rio Tinto Kennecott

Prepared By:

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

August 2024

Project 244501.0030

Rio Tinto Kennecott / Second Quarter 2024 Summary Report
Trinity Consultants
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 SECOND QUARTER 2024 A
APPENDIX B: HOURLY TEMPERATURE DATA FOR SECOND QUARTER 2024 B
APPENDIX C: EQUIPMENT CALIBRATIONS FOR SECOND QUARTER 2024 D
APPENDIX D: PM10 MONTHLY FLOW CHECKS FOR SECOND QUARTER 2024 E
APPENDIX E: PERFORMANCE AUDIT REPORT SECOND 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 April 2024 – Copperton C3 2-3
Figure 2.2 Wind Rose for May 2024 – Copperton C3 2-4
Figure 2.3 Wind Rose for June 2024 – Copperton C3 2-4
Figure 2.4 Wind Rose for Second Quarter (April - June) 2024 – Copperton C3 2-5
Figure 2.5 Wind Rose for April 2024 – Hi-Country 2-8
Figure 2.6 Wind Rose for May 2024 - Hi-Country 2-8
Figure 2.7 Wind Rose for June 2024 – Hi-Country 2-9
Figure 2.8 Wind Rose for Second Quarter (April - June) 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
Second 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 Second Quarter 2024 – Copperton C3 2-5
Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per Cubic Meter
Second 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 Second Quarter 2024 – Hi- Country 2-10
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Second Quarter 2024 2-10
Table 2-8 Data Recovery in Percent for PM10 for Second quarter 2024 2-10
Table 3-1 Second Quarter PM10 Monthly Flow Check Results 3-2
Table 3-2 Arithmetic and Geometric Means – Second Quarter 2024 3-3
Table 3-3 Second Quarter 2024 Bias Statistics for PM10 Samplers 3-4
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1.0 INTRODUCTION
This second 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 is operated 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 April 1 through June 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 second 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 second quarter 2024 for the Copperton monitoring site. Table 2-2 presents the high
and second-high 24-hour PM10 concentrations for the second quarter at Copperton C3.

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Table 2-1 PM10 Concentration Results for Copperton C3 Monitoring Station in Micrograms per
Cubic Meter Second Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
04/03/2024 4.3 1368.00
04/06/2024 1.0 1402.56
04/09/2024 4.5 1385.28
04/12/2024 27.4 1365.12
04/15/2024 6.0 1385.28
04/18/2024 23.1 1392.48
04/21/2024 22.2 1363.68
04/24/2024 26.6 1336.32
04/27/2024 Void – Negative weight from lab
04/30/2024 20.5 1378.08
05/03/2024 4.1 1379.52
05/06/2024 1.0 1388.16
05/09/2024 5.0 1375.20
05/12/2024 18.9 1372.32
05/15/2024 23.6 1353.60
05/18/2024 21.0 1347.84
05/21/2024 10.4 1380.96
05/24/2024 15.4 1365.12
05/27/2024 27.9 1375.20
05/30/2024 27.1 1366.56
06/02/2024 23.3 1332.00
06/05/2024 20.5 1346.40
06/08/2024 16.8 1324.80
06/11/2024 37.3 1355.04
06/14/2024 48.1 1323.36
06/17/2024 39.2 1343.52
06/20/2024 37.1 1340.64
06/23/2024 33.8 1311.84
06/26/2024 62.9 1347.84
06/29/2024 54.1 1324.80
Table 2-2 High and Second-High 24-Hour PM10 Concentrations – Copperton C3
Number 24-hour Concentration
(μg/m3)
Date of Occurrence
1 62.9 June 26
2 54.1 June 29

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

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

Wind speed records show there were 0.7 percent calm winds during the second quarter 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 99.2 percent for the second quarter. There were 0.1 percent of wind records showing
greater than 10.8 m/s during the second quarter. The sector with the highest average wind speed was the
southeast at 4.2 m/s. The maximum wind gust during the quarter was 24.6 m/s which occurred on April 5 at
13:00.

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

4%
8%
12%
16%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
April 2024
10-m Level

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Figure 2.2 Wind Rose for May 2024 – Copperton C3

Figure 2.3 Wind Rose for June 2024 – Copperton C3

4%
8%
12%
16%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
May 2024
10-m Level
4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott C3
June 2024
10-m Level

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Figure 2.4 Wind Rose for Second Quarter (April - June) 2024 – Copperton C3

2.1.3 Temperature
Ambient daily mean temperatures during the second quarter ranged from a low of 31.6F in April to a high of
82.5°F in June. The hourly minimum was 28.2F on April 6 at 07:00 and the hourly maximum was 92.1°F
which occurred on June 23 at 17:00. Second quarter data are summarized in Table 2-3. Hourly averages of
the temperature data by month for the second quarter are presented in Appendix B.
Table 2-3 Summary of Temperature in Degrees Fahrenheit (°F) for Second Quarter 2024 –
Copperton C3
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
April 48.6 62.9 31.6 71.1 28.2
May 53.5 69.7 38.0 77.6 29.9
June 73.0 82.5 51.2 92.1 39.1
Second Quarter 2024 58.4 82.5 31.6 92.1 28.2
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 second 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 2 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 second quarter 2024 for the Hi-Country monitoring site. Table 2-5 presents the high and
second-high 24-hour PM10 concentrations for the second quarter at Hi-Country.

Table 2-4 PM10 Concentration Results for Hi-Country Monitoring Station in Micrograms per
Cubic Meter Second Quarter 2024
Sampling
Date
STP
PM10 Conc.
(μg/m3)
Flow
(m3) Comment
04/03/2024 17.4 1360.80
04/06/2024 6.2 1396.80
04/09/2024 3.5 1386.72
04/12/2024 33.2 1353.60
04/15/2024 1.7 1365.12
04/18/2024 14.1 1375.20
04/21/2024 9.4 1357.92
04/24/2024 15.1 1347.84
04/27/2024 2.3 1355.04
04/30/2024 10.0 1375.20
05/03/2024 1.3 1373.76
05/06/2024 Void – Negative weight from the lab
05/09/2024 0.4 1370.88
05/12/2024 12.1 1352.16
05/15/2024 17.5 1356.48
05/18/2024 Void – Filter record sheet issue
05/21/2024 18.2 1386.72
05/24/2024 5.1 1359.36
05/27/2024 5.8 1352.16
05/30/2024 15.8 1352.16
06/02/2024 14.7 1320.48
06/05/2024 20.8 1342.08
06/08/2024 13.0 1336.32
06/11/2024 13.5 1317.60
06/14/2024 23.6 1324.80
06/17/2024 26.8 1337.76
06/20/2024 44.6 1330.56
06/23/2024 Void – Power outage
06/26/2024 31.8 1316.16
06/29/2024 17.1 1326.24

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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 44.6 June 20
2 33.2 April 12

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 second 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 second 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 98.6 percent. 1.4 percent of the winds were greater than 10.8 m/s (24.2 mph) during the second
quarter. The sector with the highest average wind speed was south at 6.8 m/s. The maximum wind gust
during the quarter was 29.6 m/s which occurred on May 5 at 06:00.

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 April through June 2024 at the Hi-Country monitoring site. Figure
2.8 presents the wind rose for the second quarter of 2024. Summary tables of hourly average wind direction
and wind speed by month for the second quarter are presented in Appendix A.

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Figure 2.5 Wind Rose for April 2024 – Hi-Country

Figure 2.6 Wind Rose for May 2024 - Hi-Country

4%
8%
12%
16%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
April 2024
10-m Level
4%
8%
12%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
May 2024
10-m Level

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Figure 2.7 Wind Rose for June 2024 – Hi-Country

Figure 2.8 Wind Rose for Second Quarter (April - June) 2024 – Hi-Country

4%
8%
12%
16%
20%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott Hi-Country
June 2024
10-m Level
4%
8%
12%
16%
N
E
S
W
N-E
S-ES-W
N-W
Rio Tinto Kennecott HiCountry
Quarter 2 2024
10-m Level

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2.2.3 Temperature
Ambient daily mean temperatures during the second quarter ranged from a low of 29.9F in April to a high of
82.0°F in June. The hourly minimum was 26.6F which occurred on April 6 at 13:00. The hourly maximum
was 89.4°F which occurred on June 23 at 15:00. The second quarter data are summarized in Table 2-6. Hourly
averages of the temperature data by month for the second quarter are presented in Appendix B.
Table 2-6 Summary of Temperature in Degrees Fahrenheit (°F) for Second Quarter 2024 – Hi-
Country
Month
Monthly
Mean
(˚F)
Maximum
Daily Mean
(˚F)
Minimum
Daily Mean
(˚F)
Maximum
Hour
(˚F)
Minimum
Hour
(˚F)
April 47.2 61.3 29.9 68.6 26.6
May 52.2 68.6 35.7 74.3 29.5
June 71.8 82.0 49.7 89.4 39.5
Second Quarter 2024 57.1 82.0 29.9 89.4 26.6
2.3 Data Recovery
Data recoveries in percent possible for the second quarter are provided in Tables 2-7 and 2-8.
Table 2-7 Data Recovery in Percent for Meteorological Parameters for Second Quarter 2024
Month

April
(%)

May
(%)

June
(%)
2nd Qtr.
2024
(%)

April
(%)

May
(%)

June
(%)
2nd Qtr.
2024
(%)
Parameter C3 Hi-Country
Wind Speed 88.3 100 99.9 96.1 100 98.1 99.7 99.3
Wind Direction 88.3 100 99.9 96.1 100 98.1 99.7 99.3
Temperature 99.7 100 99.9 99.9 100 100 99.7 99.9

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

April
(%)

May
(%)

June
(%)
Second
Quarter 2024
(%)
Copperton C3 90.0 100 100 96.7
Hi-Country 100 80.0 90.0 90.0

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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 April 11, 2024. The
meteorological sensors at Copperton C3 were calibrated on January 3, 2024 and the wind speed sensor at
Copperton C3 was replaced with a new unit on April 4, 2024. The meteorological sensors at Hi-Country were
calibrated on January 30, 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 April 11, May 10, and June 6. At
Hi-Country, the samplers were calibrated on April 11, May 10, and June 6, 2024. The measured flow rates of
the PM10 samplers should not exceed ±7 percent of the transfer standard flow rate or within ±10 percent of
the designed flow rates for the high-volume samplers. The results of the monthly flow checks are presented
in Table 3-1 and in Appendix D

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Table 3-1 Second Quarter PM10 Monthly Flow Check Results
Month Sampler ID Reference
Standard
(m3/min)
Sampler
Flow
(m3/min)
% Difference
(Transfer
Standard)

% Difference
(Design)
Copperton
April
A 1.092 1.092 0.0 -2.0
B 1.071 1.085 2.2 -3.9
C 1.082 1.095 1.1 -2.9
D 1.099 1.108 0.8 -1.3
E 1.066 1.096 2.8 -4.5
May
A 1.089 1.093 0.4 -2.2
B 1.093 1.096 0.3 -1.9
C 1.093 1.096 0.3 -1.9
D 1.102 1.109 0.7 -1.1
E 1.072 1.096 2.2 -3.9
June
A 1.104 1.121 1.5 -0.8
B 1.092 1.113 2.0 -2.0
C 1.086 1.112 2.4 -2.5
D 1.106 1.128 2.0 -0.8
E 1.086 1.112 2.5 -2.7
Hi-Country
April
A 1.094 1.135 3.7 -3.9
B 1.096 1.103 0.6 -1.9
C 1.096 1.105 0.8 -1.5
D 1.104 1.111 0.6 -1.0
E 1.082 1.117 3.2 -3.0
F 1.096 1.096 0.0 -1.6
G 1.100 1.112 1.1 -1.3
H 1.086 1.109 2.1 -2.6
May
A 1.098 1.113 1.4 -1.6
B 1.073 1.102 2.7 -3.7
C 1.095 1.106 1.0 -1.9
D 1.091 1.110 1.7 -2.2
E 1.089 1.115 2.4 -2.4
F 1.094 1.096 0.2 -1.9
G 1.097 1.111 1.3 -1.6
H 1.087 1.108 1.9 -2.6
June
A 1.112 1.130 1.6 -0.3
B 1.112 1.121 0.8 -0.4
C 1.108 1.124 1.4 -0.8
D 1.098 1.124 2.4 -1.2
E 1.082 1.143 5.7 -4.3
F 1.092 1.113 1.9 -2.1
G 1.098 1.129 2.8 -1.7
H 1.094 1.126 2.9 -2.1

Rio Tinto Kennecott / Second 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 – Second Quarter 2024
Station
Arithmetic
Mean
(STD)
Geometric
Mean
(STD)
Copperton 22.9 19.3
Hi-Country 20.5 10.8
3.5 Statistics for PM10 Checks
Calculations for the PM10 data quality assessment were made based 40 CFR 58 Appendix A. The percent
difference is calculated using the following formula:

d YX
X xi
ii
i
100

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

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

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

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

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

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

AS is the standard deviation of the absolute values if the di's and is calculated using the following equation:
𝐴𝑆 ൌ ඨ𝑛 ൈ ∑|𝑑ଵ |ଶ െ ൫∑|𝑑௜ |௡௜ୀଵ ൯ଶ௡௜ୀଵ
𝑛ሺ𝑛 െ 1ሻ

Rio Tinto Kennecott / Second 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 Second Quarter 2024 Bias Statistics for PM10 Samplers
Statistics Copperton Hi-Country
Mean Percent Difference -1.193 -1.496
AB 1.193 1.791
AS 0.817 1.143
Bias Estimate -1.60 -2.19
3.6 Quality Assurance Audits
To comply with the monitoring requirements, a performance audit of PM10 samplers is conducted with 30 days
of installation and quarterly. The PM10 samplers at Copperton and Hi-Country were audited on June 12, 2024;
the meteorological sensors at each station were audited on June 12, 2024. A copy of the June 12, 2024 audit
report is presented in Appendix E.

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

Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for April, 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 ---------------------------------------
2 ---------------------------------------
3 ---------------------------------------
4 ------------------------------------154/08.3
5 217/02.8 211/02.2 189/02.6 223/02.9 222/02.3 181/01.9 170/01.6 172/02.4 152/06.1 172/07.1 212/06.9 225/10.7 235/14.1
6 277/04.3 320/01.1 287/04.5 277/09.0 284/09.0 304/04.9 091/01.0 317/02.4 294/02.9 279/03.2 317/04.7 307/05.3 318/02.4
7 324/01.8 282/04.2 296/03.6 280/03.9 276/04.8 269/04.2 287/02.6 174/00.5 155/01.1 240/02.7 268/03.6 265/03.4 258/05.2
8 316/02.7 314/01.7 323/02.2 290/02.5 310/01.5 282/00.7 325/00.8 353/02.2 013/03.6 016/03.7 012/03.8 001/03.0 008/02.8
9 269/02.5 271/03.1 256/01.0 273/02.0 273/03.2 269/02.6 269/01.4 101/01.1 103/02.4 100/02.4 077/02.2 068/01.8 005/01.6
10 282/03.0 285/03.8 282/02.8 290/02.9 305/02.2 289/01.4 299/01.1 068/00.9 146/01.9 341/01.9 033/02.3 028/03.6 319/02.7
11 265/02.7 273/02.6 271/03.6 260/03.4 256/03.4 262/03.8 268/03.5 116/02.0 116/02.7 115/05.0 127/05.4 112/04.1 110/04.5
12 204/01.6 175/02.9 143/04.0 145/04.3 168/03.5 149/05.2 150/05.4 160/07.2 150/07.3 139/07.2 133/06.8 133/05.7 132/06.5
13 193/02.6 188/04.1 223/04.9 217/05.6 208/05.5 164/05.5 170/04.9 160/05.3 158/05.3 144/06.2 132/06.2 145/06.3 127/06.2
14 218/02.2 225/01.5 232/03.4 191/03.0 201/02.3 271/01.3 299/00.9 116/01.3 137/05.8 146/06.4 145/07.4 149/07.1 190/05.4
15 267/06.9 261/04.0 161/01.4 331/01.0 132/01.5 232/00.9 272/01.5 161/01.9 126/03.2 124/03.0 111/01.8 275/02.5 274/04.7
16 110/01.1 011/01.1 311/03.4 333/02.3 309/03.8 292/04.6 280/06.1 255/03.9 140/02.4 146/02.2 109/02.7 111/02.7 100/02.1
17 236/01.8 315/00.8 315/01.5 281/01.6 285/01.4 288/01.4 299/01.4 052/01.3 325/02.5 299/03.9 011/03.4 022/03.3 016/04.0
18 359/03.0 357/02.9 147/01.0 252/00.7 292/01.4 276/00.9 130/01.2 104/01.3 111/02.5 104/02.1 104/02.3 112/02.6 124/02.5
19 304/00.8 335/00.6 311/01.1 283/00.9 298/00.5 313/00.9 337/00.6 131/01.4 115/01.0 116/01.3 094/01.7 070/02.0 063/02.6
20 265/01.3 276/01.1 278/01.4 277/01.2 275/02.0 261/02.4 239/01.4 103/00.4 106/02.2 096/02.0 104/03.0 098/02.3 053/02.0
21 267/02.5 259/03.4 251/02.9 258/03.0 258/03.7 252/02.4 152/00.5 130/01.9 126/04.8 123/06.4 124/07.0 109/07.4 130/05.4
22 357/02.0 333/01.4 330/01.3 339/02.6 348/02.4 352/03.0 333/02.4 356/02.5 110/02.5 115/02.0 096/02.0 086/02.2 099/02.3
23 153/01.9 245/00.8 230/01.8 302/01.0 015/01.4 051/00.9 299/01.1 037/00.9 131/01.1 088/01.5 047/01.9 050/02.5 046/02.6
24 120/02.5 268/01.7 261/01.8 278/01.6 220/01.5 237/01.6 209/01.6 136/03.6 129/05.3 131/06.2 121/07.1 116/07.4 135/06.4
25 330/02.7 320/03.0 278/05.2 291/03.4 293/03.0 307/01.3 289/01.4 267/01.1 046/01.4 083/01.9 209/04.2 187/02.8 096/02.3
26 005/00.9 153/01.3 292/00.6 094/00.4 305/00.6 324/00.3 132/00.7 119/00.9 040/02.1 325/02.5 326/01.6 288/01.9 144/01.6
27 120/00.4 073/00.2 314/01.4 358/00.8 330/01.2 291/03.7 275/05.1 282/04.1 288/02.2 286/05.0 292/05.3 288/05.6 282/06.2
28 268/02.0 351/01.0 338/01.0 016/00.9 312/00.7 304/01.1 318/00.7 053/00.6 113/01.2 130/01.7 022/02.2 048/02.1 355/01.1
29 223/01.1 271/01.0 349/00.6 240/00.6 260/00.9 339/00.6 007/00.6 149/02.0 132/04.3 123/04.7 115/06.0 168/03.8 196/03.4
30 347/03.7 342/03.1 356/02.2 335/03.5 360/02.2 331/02.1 310/01.6 119/01.6 084/01.9 107/02.0 110/02.1 087/01.8 108/02.4
MEAN 270/02.3 288/02.1 280/02.4 283/02.5 281/02.5 283/02.3 277/02.0 118/02.1 118/03.1 119/03.6 096/04.0 096/04.0 100/04.1
MAX 267/06.9 282/04.2 278/05.2 277/09.0 284/09.0 164/05.5 280/06.1 160/07.2 150/07.3 139/07.2 145/07.4 225/10.7 235/14.1
MIN 120/00.4 073/00.2 292/00.6 094/00.4 298/00.5 324/00.3 152/00.5 103/00.4 115/01.0 116/01.3 326/01.6 068/01.8 355/01.1
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for April, 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 ------------------------------------------
2 ------------------------------------------
3 ------------------------------------------
4 157/07.0 187/05.9 173/05.7 190/05.8 178/06.3 212/08.0 219/08.2 221/08.6 209/06.6 184/07.0 183/06.3 ---221/08.6 173/05.7
5 237/14.8 198/06.3 201/05.2 258/05.3 273/04.5 283/06.1 014/02.5 341/00.7 288/01.5 286/02.0 278/04.6 226/04.9 237/14.8 341/00.7
6 297/02.9 325/04.1 289/04.5 302/04.2 322/04.1 312/04.2 309/03.8 312/02.4 309/02.5 037/01.6 160/01.9 306/03.8 284/09.0 091/01.0
7 240/04.0 281/02.8 098/02.4 096/02.5 094/02.1 136/02.1 220/01.8 331/01.9 345/02.7 350/01.9 312/01.6 274/02.8 258/05.2 174/00.5
8 018/02.7 037/02.9 008/03.2 315/03.0 295/03.3 303/03.5 281/05.1 298/03.0 298/01.8 282/01.5 276/02.6 326/02.7 281/05.1 282/00.7
9 012/02.8 335/03.4 017/03.7 041/03.2 048/02.4 358/01.2 284/01.5 273/02.0 279/01.9 267/02.3 262/01.8 319/02.2 017/03.7 256/01.0
10 052/03.2 339/02.4 277/04.2 260/04.1 297/03.4 349/02.9 309/01.5 271/02.0 274/02.7 269/02.2 267/03.4 306/02.6 277/04.2 068/00.9
11 103/03.9 107/03.2 061/02.7 156/02.8 126/04.6 160/03.1 220/03.2 245/02.8 248/01.5 247/02.3 236/03.4 190/03.3 127/05.4 248/01.5
12 165/05.5 165/05.7 194/05.2 213/05.0 217/04.8 209/03.0 204/02.5 219/04.4 178/02.6 190/03.6 221/03.6 173/04.7 150/07.3 204/01.6
13 121/07.5 148/05.5 141/05.7 151/05.1 128/05.6 188/03.4 231/02.7 231/03.1 216/02.2 229/05.7 200/02.4 175/04.9 121/07.5 216/02.2
14 161/05.9 209/04.8 184/03.7 178/03.6 234/04.4 230/05.3 249/03.6 310/04.6 322/05.3 256/05.1 268/05.3 211/04.2 145/07.4 299/00.9
15 275/06.7 272/05.9 271/04.3 144/02.2 127/01.9 131/02.1 139/00.8 257/01.0 193/01.0 089/01.3 051/02.6 195/02.7 267/06.9 139/00.8
16 096/02.4 115/02.3 083/01.6 047/02.0 031/01.6 157/01.0 207/01.2 251/02.1 246/02.5 253/02.1 261/02.0 153/02.5 280/06.1 157/01.0
17 019/04.2 018/04.4 022/04.0 026/04.3 020/03.8 353/03.2 321/02.9 328/03.6 314/04.9 333/05.4 332/05.1 337/03.1 333/05.4 315/00.8
18 067/01.9 086/02.2 058/02.1 073/01.6 061/02.2 019/01.4 301/00.9 286/00.6 291/00.9 278/00.9 282/01.1 055/01.7 359/03.0 286/00.6
19 028/03.1 022/03.0 018/02.9 011/02.7 013/02.4 354/02.1 337/02.2 299/01.6 273/02.1 267/01.8 271/01.7 347/01.7 028/03.1 298/00.5
20 025/03.3 032/03.1 295/02.9 008/03.6 006/02.9 342/02.7 300/01.7 282/01.4 265/02.8 268/03.9 267/03.1 310/02.2 268/03.9 103/00.4
21 204/03.4 137/03.7 204/02.8 255/03.1 228/02.5 198/01.5 226/02.1 270/02.8 264/02.5 293/02.6 007/04.0 213/03.4 109/07.4 152/00.5
22 084/02.3 073/02.2 051/02.0 021/02.4 354/01.8 016/01.2 273/01.3 263/01.1 316/01.5 293/01.0 318/01.8 007/02.0 352/03.0 293/01.0
23 036/03.1 026/03.2 024/03.6 027/03.5 009/02.3 350/02.2 294/01.1 293/01.4 287/01.6 271/02.3 279/01.5 359/01.9 024/03.6 245/00.8
24 145/05.5 142/04.4 178/04.2 171/04.4 213/04.0 220/04.0 214/03.1 253/02.1 194/03.3 257/06.5 290/03.3 192/03.9 116/07.4 220/01.5
25 119/01.4 106/01.0 139/02.5 276/05.7 272/08.9 251/02.4 045/01.9 340/02.0 192/01.6 212/01.5 268/00.9 273/02.6 272/08.9 268/00.9
26 191/01.1 125/02.4 117/04.2 113/03.8 139/01.4 332/01.3 153/00.1 113/00.9 166/01.6 204/01.0 207/01.5 138/01.4 117/04.2 153/00.1
27 272/07.1 288/04.9 297/03.7 289/03.6 319/03.1 031/02.6 022/01.6 071/00.6 203/00.3 318/00.5 304/00.7 307/02.9 272/07.1 073/00.2
28 015/02.0 271/03.6 281/04.2 266/03.2 252/02.0 018/01.4 206/01.4 211/02.4 251/01.8 265/02.0 256/02.8 311/01.8 281/04.2 053/00.6
29 246/04.7 240/05.6 225/04.0 236/04.4 212/04.1 234/06.1 304/05.1 306/05.0 286/05.5 307/04.5 008/03.0 249/03.4 234/06.1 240/00.6
30 125/03.7 115/02.4 096/02.3 078/02.3 077/01.7 079/01.3 298/01.7 258/01.7 292/00.9 290/01.6 289/01.4 037/02.1 347/03.7 292/00.9
MEAN 098/04.3 100/03.7 111/03.6 285/03.6 326/03.4 306/02.9 267/02.4 279/02.4 262/02.4 270/02.7 273/02.7 270/03.0
MAX 237/14.8 198/06.3 173/05.7 190/05.8 272/08.9 212/08.0 219/08.2 221/08.6 209/06.6 184/07.0 183/06.3 237/14.8
MIN 191/01.1 106/01.0 083/01.6 073/01.6 139/01.4 157/01.0 153/00.1 071/00.6 203/00.3 318/00.5 304/00.7 153/00.1
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =636 DATA RECOVERY RATE = 88.3%
MONTHLY MEAN = 270/03.0 MAXIMUM WIND SPEED =14.8 AT 237 DEGREES DATE OF OCCURRENCE = 4/5 AT 1400
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for May, 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
1 328/01.6 341/04.3 357/02.5 341/04.1 346/03.4 339/02.3 013/03.2 021/04.0 023/04.0 356/03.9 264/03.8 287/04.3 272/03.0
2 303/02.5 293/01.8 268/01.6 265/01.6 261/02.1 263/02.1 222/01.7 129/04.2 131/05.1 130/05.9 126/06.8 135/06.4 138/04.9
3 350/04.2 022/02.7 357/02.0 320/03.1 330/02.3 326/02.3 300/04.2 291/03.4 146/01.9 275/04.6 263/05.9 277/04.7 255/04.8
4 274/01.6 246/01.2 241/01.2 241/02.5 236/02.2 258/01.7 139/02.2 115/02.6 123/06.3 126/08.0 152/07.1 147/07.4 137/06.7
5 169/07.8 171/08.3 152/06.5 212/07.7 217/08.5 220/11.8 212/08.1 212/09.1 220/09.2 233/06.4 304/03.4 299/03.2 103/02.0
6 136/00.9 126/01.4 228/02.0 305/02.5 260/02.7 278/05.1 281/04.4 290/02.9 151/02.8 128/03.9 116/03.2 113/03.0 008/01.8
7 327/01.9 321/01.3 294/03.4 307/02.9 297/02.3 300/02.2 291/02.1 280/06.7 288/06.5 292/07.0 300/06.9 298/07.0 304/06.5
8 309/03.7 293/04.5 279/05.4 287/02.9 276/00.9 280/01.0 169/00.9 123/03.1 097/02.0 108/01.8 070/01.6 043/01.7 014/02.7
9 317/02.4 325/02.5 324/02.4 299/02.1 304/01.7 308/01.2 289/00.8 008/00.7 020/02.0 017/02.2 014/02.9 020/02.7 004/02.6
10 333/03.0 311/02.8 322/02.5 304/01.8 302/02.0 331/03.6 334/03.5 356/02.9 352/04.0 017/01.8 118/02.6 091/02.2 083/01.6
11 276/02.3 256/02.2 283/01.7 307/01.9 314/02.0 283/01.5 344/01.9 003/01.9 033/01.9 049/01.9 016/02.9 355/03.3 003/02.7
12 227/01.0 285/01.0 308/01.3 291/01.3 333/01.3 291/01.2 050/00.6 110/01.3 104/01.7 094/01.8 108/02.0 061/02.0 048/02.2
13 262/01.8 270/02.4 262/02.9 265/04.7 269/03.6 251/02.5 251/01.8 108/02.1 109/03.4 125/04.6 132/03.6 116/04.3 106/03.2
14 276/02.5 263/02.4 278/02.1 262/02.8 257/01.6 286/01.6 267/00.8 092/01.2 148/01.1 079/01.6 034/02.2 001/02.1 270/03.8
15 311/01.8 309/01.5 274/01.8 271/02.3 277/03.1 261/02.9 138/01.2 077/00.7 047/01.6 042/01.7 028/01.9 024/02.3 038/02.7
16 282/01.2 274/01.2 244/02.2 277/01.6 269/01.4 277/01.4 094/01.0 099/01.4 106/02.1 118/02.2 114/02.4 071/01.7 060/02.2
17 264/02.9 263/02.5 268/03.1 266/03.4 267/04.8 257/03.4 089/01.3 126/00.8 115/02.7 252/03.1 289/02.2 290/03.7 270/04.3
18 332/03.3 337/03.3 334/02.4 305/01.8 255/01.4 298/01.1 234/00.3 127/01.5 068/01.2 107/01.8 115/02.6 113/02.5 121/02.4
19 193/05.5 224/03.2 166/02.1 246/01.3 292/02.1 283/04.2 292/02.9 304/02.4 018/01.8 334/03.2 004/04.5 013/04.4 025/04.7
20 337/02.4 002/02.0 341/02.8 333/05.1 346/03.8 350/03.2 309/01.1 299/01.1 013/00.7 129/03.2 140/04.9 134/05.1 131/05.2
21 302/02.5 326/01.7 328/01.3 300/02.0 275/03.8 292/02.9 310/02.0 103/01.3 080/02.3 034/02.5 016/02.5 344/02.1 262/03.2
22 046/00.7 245/01.3 220/00.9 193/01.1 319/00.9 141/01.5 130/02.6 043/01.3 165/02.1 154/05.9 160/05.6 157/04.5 151/03.5
23 023/02.9 359/02.3 033/02.3 010/01.8 332/01.5 298/03.4 299/02.7 281/04.1 277/04.1 333/03.0 008/04.1 306/03.3 289/03.6
24 273/02.9 265/03.2 264/02.6 264/01.7 265/01.7 264/01.2 112/01.0 110/02.8 111/03.4 119/04.0 135/04.5 137/03.7 123/04.0
25 143/01.9 128/04.3 120/04.5 122/05.7 126/05.4 126/04.5 132/04.5 127/03.4 134/04.4 131/06.8 172/05.4 211/04.5 311/04.6
26 259/02.9 255/02.7 251/02.3 259/02.3 277/01.7 300/01.1 014/00.7 049/01.0 095/01.4 090/01.9 054/01.7 070/01.5 046/01.8
27 263/03.5 267/02.7 266/02.6 269/02.1 268/02.1 266/02.1 260/01.4 101/01.5 121/01.9 093/01.5 080/01.6 102/02.0 044/01.8
28 263/03.1 259/02.7 264/03.3 260/02.3 279/01.9 265/02.2 233/00.8 110/01.1 105/01.9 111/02.8 107/03.8 131/03.1 119/03.4
29 195/03.4 173/04.1 015/02.5 033/01.3 351/01.1 275/00.9 274/00.8 125/03.6 120/03.5 112/02.9 080/03.3 346/03.1 284/06.3
30 316/03.0 314/02.6 335/02.8 326/02.7 330/02.6 340/02.7 348/02.6 017/02.6 030/03.0 033/02.4 039/02.1 027/02.1 060/02.4
31 262/02.8 281/01.8 278/01.5 268/01.7 258/02.2 253/01.8 129/00.8 102/01.6 120/01.4 083/01.5 094/02.0 076/01.9 081/02.0
MEAN 288/02.7 285/02.7 287/02.5 285/02.6 287/02.5 283/02.6 277/02.1 082/02.5 096/02.9 088/03.4 081/03.5 056/03.4 048/03.5
MAX 169/07.8 171/08.3 152/06.5 212/07.7 217/08.5 220/11.8 212/08.1 212/09.1 220/09.2 126/08.0 152/07.1 147/07.4 137/06.7
MIN 046/00.7 285/01.0 220/00.9 193/01.1 319/00.9 275/00.9 234/00.3 077/00.7 013/00.7 093/01.5 080/01.6 070/01.5 083/01.6
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for May, 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
1 290/03.8 357/03.1 013/02.9 349/02.5 012/02.8 359/02.7 327/02.2 317/02.1 310/02.9 330/03.0 317/02.3 337/03.1 341/04.3 328/01.6
2 249/02.5 153/03.3 127/05.4 123/03.9 181/02.7 141/02.6 286/00.9 329/01.1 286/02.5 149/03.0 329/02.7 200/03.2 126/06.8 286/00.9
3 008/03.1 002/04.0 017/03.6 027/03.9 020/02.7 344/01.9 311/01.4 278/01.6 264/01.9 269/01.6 266/01.9 318/03.1 263/05.9 311/01.4
4 124/07.9 148/06.5 129/08.0 166/05.7 141/06.1 167/04.7 157/04.1 154/03.3 191/05.2 212/08.1 198/08.9 171/05.0 198/08.9 246/01.2
5 236/01.7 142/01.6 132/01.1 144/02.2 134/02.6 129/02.2 208/00.7 035/01.3 018/01.5 113/00.8 142/00.7 178/04.5 220/11.8 142/00.7
6 303/02.2 285/02.0 269/02.8 241/02.3 133/03.3 124/02.0 147/01.1 148/01.3 216/01.1 307/01.3 300/01.1 221/02.4 278/05.1 136/00.9
7 302/05.3 300/03.3 291/05.0 310/04.5 299/05.6 295/05.7 304/04.8 312/03.7 318/03.5 317/03.0 312/02.8 302/04.3 292/07.0 321/01.3
8 001/03.5 016/03.2 007/03.4 007/03.0 342/03.5 355/02.6 357/01.7 336/01.9 359/02.1 019/01.9 345/01.7 355/02.5 279/05.4 276/00.9
9 345/04.2 004/04.3 154/05.3 252/02.6 329/01.9 008/02.1 350/01.7 352/02.1 330/01.8 312/01.8 311/02.0 337/02.3 154/05.3 008/00.7
10 012/03.1 018/03.4 047/04.4 034/02.1 153/00.8 205/00.9 187/01.5 220/02.1 268/02.0 269/02.2 267/02.6 336/02.5 047/04.4 153/00.8
11 019/02.9 011/03.4 343/03.8 339/04.4 352/03.1 019/03.3 229/03.7 028/01.0 149/01.6 188/02.3 306/01.0 339/02.4 339/04.4 028/01.0
12 046/02.5 031/03.4 326/03.4 313/03.0 326/03.1 336/01.9 290/01.6 290/01.9 267/01.0 261/01.5 266/01.7 330/01.8 326/03.4 050/00.6
13 103/02.6 058/01.4 053/01.8 012/04.0 003/03.5 326/02.3 232/02.3 307/06.2 334/01.4 278/01.8 285/01.8 293/02.9 307/06.2 334/01.4
14 294/03.1 278/03.4 333/03.4 344/03.8 007/04.3 353/03.7 323/02.0 307/02.1 294/02.8 294/03.2 319/01.9 307/02.5 007/04.3 267/00.8
15 017/03.4 013/03.8 021/03.6 017/03.5 348/03.1 317/02.2 314/01.2 312/01.3 305/01.4 269/01.6 267/01.6 338/02.2 013/03.8 077/00.7
16 036/02.3 036/02.6 001/02.4 302/03.5 302/02.5 320/01.9 259/01.4 262/02.3 257/03.0 264/02.4 262/03.5 300/02.1 302/03.5 094/01.0
17 283/04.3 351/03.4 018/03.6 357/03.0 353/03.8 331/03.9 308/03.7 326/03.2 328/03.7 336/03.3 340/03.1 305/03.2 267/04.8 126/00.8
18 086/01.6 096/02.0 031/01.4 030/01.5 337/00.9 185/00.9 173/01.8 227/04.5 239/05.2 120/02.2 203/03.1 114/02.1 239/05.2 234/00.3
19 024/04.3 028/04.1 028/03.9 010/04.1 006/03.4 343/03.0 308/03.2 323/02.9 326/02.2 347/02.1 348/02.1 336/03.2 193/05.5 246/01.3
20 131/03.8 032/01.6 003/01.9 137/02.2 343/03.4 316/02.9 294/04.0 302/02.7 322/02.2 305/01.9 281/03.6 342/03.0 131/05.2 013/00.7
21 038/03.0 033/03.4 022/03.8 324/02.9 005/03.2 357/02.1 298/00.9 224/02.0 242/02.2 311/01.0 300/00.9 330/02.3 275/03.8 300/00.9
22 263/04.3 237/03.5 213/04.6 231/05.6 211/04.4 202/04.1 214/04.0 245/03.6 273/07.5 014/05.2 024/04.5 201/03.5 273/07.5 046/00.7
23 298/03.6 298/03.8 354/03.2 012/04.1 019/03.4 007/02.5 328/01.6 296/01.4 280/01.4 272/02.3 271/02.7 324/02.9 012/04.1 296/01.4
24 114/03.3 183/04.3 149/06.2 199/06.1 223/07.5 179/06.0 167/03.8 146/04.1 142/03.6 167/02.3 117/02.8 168/03.6 223/07.5 112/01.0
25 105/02.2 104/01.2 124/01.2 074/02.0 024/02.1 275/02.7 049/01.2 274/01.3 259/02.1 260/02.0 260/03.0 137/03.4 131/06.8 124/01.2
26 072/01.8 045/01.6 065/02.0 042/01.8 033/01.9 018/01.4 280/01.5 267/02.2 264/02.8 260/03.3 258/03.7 350/02.0 258/03.7 014/00.7
27 056/02.5 050/01.9 026/02.3 018/02.0 010/01.8 349/01.5 294/01.3 267/02.1 257/02.8 257/03.3 260/02.9 316/02.1 263/03.5 294/01.3
28 231/04.5 327/03.3 152/01.9 104/01.3 151/01.6 229/01.6 216/05.7 204/03.1 222/03.4 211/02.9 231/04.0 204/02.7 216/05.7 233/00.8
29 296/05.3 336/04.4 354/04.9 012/04.2 023/03.7 355/04.2 336/02.6 328/02.0 328/02.6 334/03.5 328/02.8 347/03.2 284/06.3 274/00.8
30 039/02.5 059/02.1 034/02.0 023/03.2 360/03.1 351/01.5 300/01.5 278/01.4 269/02.2 273/01.5 272/02.5 351/02.4 023/03.2 278/01.4
31 037/02.0 054/02.1 046/02.3 023/02.4 026/01.8 001/01.8 309/01.6 279/01.5 269/02.0 261/02.4 274/02.1 346/01.9 262/02.8 129/00.8
MEAN 009/03.3 022/03.1 031/03.4 009/03.3 003/03.2 337/02.7 283/02.3 289/02.4 281/02.6 280/02.5 286/02.6 318/02.8
MAX 124/07.9 148/06.5 129/08.0 199/06.1 223/07.5 179/06.0 216/05.7 307/06.2 273/07.5 212/08.1 198/08.9 220/11.8
MIN 086/01.6 104/01.2 132/01.1 104/01.3 153/00.8 185/00.9 208/00.7 028/01.0 267/01.0 113/00.8 142/00.7 234/00.3
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 318/02.8 MAXIMUM WIND SPEED =11.8 AT 220 DEGREES DATE OF OCCURRENCE = 5/5 AT 600
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3 Page 1
Wind Speed and Direction in mps for June, 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
1 263/02.3 272/02.0 269/02.1 263/02.2 262/02.0 274/01.7 168/01.0 114/00.6 067/01.6 118/02.3 121/03.8 068/02.3 052/03.7
2 253/03.1 269/01.9 264/01.4 304/01.9 200/01.8 278/01.4 260/02.1 103/01.5 027/01.7 038/01.3 019/03.5 022/02.9 042/01.7
3 274/02.5 284/03.7 291/04.6 290/04.4 285/03.6 285/03.9 310/02.6 087/00.7 130/01.8 122/02.8 115/02.4 118/03.4 262/03.3
4 330/02.0 306/01.9 323/02.1 336/02.5 339/03.0 349/02.5 006/03.2 006/02.9 311/04.1 302/03.9 284/03.7 297/03.8 301/02.7
5 258/03.0 256/02.8 261/04.0 257/03.6 266/03.5 266/01.9 094/01.0 099/01.2 102/02.2 099/02.6 083/02.2 089/02.4 045/02.8
6 276/03.1 268/03.5 279/02.4 267/02.1 271/02.1 277/01.5 206/00.4 111/01.1 105/01.7 104/01.9 087/01.9 107/02.1 067/01.9
7 327/02.0 334/03.5 317/03.6 295/02.7 322/01.8 310/02.1 291/01.2 123/01.0 034/01.6 096/02.1 044/02.0 009/02.0 003/03.6
8 254/02.0 259/02.7 266/04.2 283/01.8 258/01.7 276/01.8 106/00.5 109/01.3 093/01.3 101/01.6 118/01.9 114/03.4 103/02.7
9 260/03.5 270/02.2 303/01.8 260/00.9 349/02.0 295/01.3 264/01.5 176/01.5 129/03.6 115/03.4 107/04.0 104/04.9 077/02.9
10 271/02.2 263/02.3 271/01.6 318/01.1 279/01.8 171/02.2 129/00.8 096/00.5 108/01.7 083/01.5 077/01.8 051/02.3 037/02.7
11 269/03.4 277/01.6 259/02.6 259/02.0 263/02.0 265/02.0 182/00.6 087/01.0 107/02.0 102/02.4 090/02.2 100/02.4 098/02.4
12 252/03.2 257/03.9 254/04.3 258/04.5 253/04.3 255/03.5 107/01.5 154/00.3 114/02.9 130/04.3 127/04.9 115/05.1 ---
13 286/01.4 257/01.9 263/02.2 262/02.6 265/02.1 276/01.8 202/01.2 109/02.0 125/05.1 121/05.7 127/05.7 115/06.1 127/06.0
14 128/05.9 148/05.8 196/03.4 138/04.5 170/02.2 190/01.7 188/02.5 127/05.1 131/06.4 132/07.5 138/06.4 127/07.6 125/07.1
15 205/02.6 236/02.2 183/02.1 299/01.4 336/01.2 252/01.9 130/01.9 024/01.0 330/01.3 035/01.3 114/02.1 085/02.1 070/02.2
16 018/01.4 002/02.1 285/00.6 352/01.7 353/03.2 010/02.1 013/01.6 015/01.5 047/01.2 036/01.8 052/01.8 065/02.2 066/02.0
17 275/01.4 272/01.6 283/01.9 264/02.3 260/02.1 272/01.0 030/00.5 272/01.7 340/02.4 295/04.1 313/03.6 358/04.6 304/04.6
18 336/02.4 336/02.3 338/01.9 313/01.4 282/01.2 301/00.8 003/01.4 049/01.8 087/02.3 079/01.8 071/01.5 072/02.0 076/02.2
19 273/01.5 267/01.8 271/01.4 282/00.9 265/01.2 280/01.3 287/00.5 108/01.6 106/01.8 124/01.4 067/01.8 047/02.2 034/02.6
20 277/01.5 270/02.3 269/02.6 271/02.0 269/01.7 280/01.3 330/00.7 069/00.8 030/00.8 062/01.7 083/01.8 073/02.0 072/02.2
21 268/02.2 265/03.4 265/02.1 242/03.1 223/02.2 179/02.7 165/03.6 136/05.5 126/06.2 128/05.9 121/06.8 124/07.1 113/03.6
22 249/02.2 256/02.2 259/02.3 261/02.4 250/01.4 235/02.1 133/01.3 112/05.3 116/05.6 124/06.1 118/06.3 123/06.5 113/05.9
23 005/01.1 020/01.4 052/02.0 297/00.8 277/01.4 227/01.5 149/02.1 122/04.5 122/07.4 129/07.1 114/07.7 115/06.5 114/05.7
24 161/03.0 169/02.4 169/03.0 235/01.7 232/01.5 304/01.4 149/00.8 136/05.2 120/04.5 109/04.8 102/04.1 094/02.7 058/02.6
25 272/02.5 271/02.5 272/02.6 272/01.6 273/02.1 273/01.4 204/00.3 085/00.9 108/02.1 100/01.7 113/02.2 068/02.2 051/01.9
26 269/02.5 271/03.0 234/02.5 193/02.3 297/01.2 201/01.6 341/01.5 302/01.1 138/02.2 124/02.1 125/02.4 124/03.1 110/03.3
27 130/06.2 130/03.6 112/02.3 050/01.1 142/04.5 119/05.4 115/04.3 149/05.6 121/07.7 096/04.9 120/03.7 130/03.8 079/04.7
28 296/03.4 316/02.3 326/01.7 325/01.5 359/02.6 343/02.0 002/02.0 006/02.7 022/02.8 027/02.8 025/02.1 037/02.5 029/02.6
29 293/01.6 284/01.5 268/01.9 275/01.2 282/00.8 268/01.0 224/00.6 118/02.9 107/03.6 130/06.1 150/05.9 135/07.2 128/06.6
30 182/03.9 142/04.3 136/03.9 178/01.9 225/01.2 127/04.9 106/03.6 124/06.8 133/07.1 140/07.1 203/06.1 195/07.2 206/06.8
MEAN 271/02.6 272/02.6 269/02.5 277/02.1 272/02.1 268/02.1 158/01.6 101/02.3 095/03.2 101/03.5 100/03.5 090/03.8 073/03.6
MAX 130/06.2 148/05.8 291/04.6 138/04.5 142/04.5 119/05.4 115/04.3 124/06.8 121/07.7 132/07.5 114/07.7 127/07.6 125/07.1
MIN 005/01.1 020/01.4 285/00.6 297/00.8 282/00.8 301/00.8 204/00.3 154/00.3 030/00.8 035/01.3 071/01.5 072/02.0 042/01.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3 Page 2
Wind Speed and Direction in mps for June, 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
1 034/02.2 051/03.1 027/02.9 343/03.6 347/03.7 339/02.3 306/02.4 220/01.6 269/01.7 269/02.1 262/02.7 312/02.3 121/03.8 114/00.6
2 095/02.7 109/02.1 059/01.9 074/01.4 144/01.0 066/01.0 315/01.2 296/01.4 268/02.1 269/01.8 261/01.7 334/01.9 019/03.5 066/01.0
3 188/02.9 243/05.0 356/02.4 331/00.8 250/01.1 128/01.9 231/01.0 271/01.4 285/01.6 296/01.3 292/01.6 270/02.5 243/05.0 087/00.7
4 001/03.1 043/03.5 249/01.6 007/02.8 021/02.6 350/01.3 284/01.6 269/02.4 264/02.5 257/02.6 255/02.5 319/02.7 311/04.1 350/01.3
5 029/03.2 318/02.7 327/03.9 359/04.3 017/03.4 009/02.2 307/01.2 274/02.4 265/02.5 266/03.1 265/04.7 320/02.8 265/04.7 094/01.0
6 093/02.0 041/02.0 025/02.2 027/01.7 017/01.5 318/01.5 274/01.7 272/02.1 321/02.5 328/02.8 317/03.5 336/02.0 268/03.5 206/00.4
7 004/02.7 011/03.3 001/02.7 330/01.7 279/06.4 284/04.8 274/03.5 259/07.0 271/03.8 258/02.1 263/02.4 323/02.9 259/07.0 123/01.0
8 123/02.4 110/02.7 101/01.7 109/02.2 103/01.4 339/01.0 313/01.1 267/02.4 269/01.9 259/02.7 259/02.4 172/02.0 266/04.2 106/00.5
9 047/02.6 330/01.3 152/01.3 139/06.2 143/06.4 153/03.5 130/02.6 183/02.2 272/05.5 313/03.5 275/01.1 194/02.9 143/06.4 260/00.9
10 034/02.8 031/02.9 025/03.4 009/03.9 011/03.4 347/03.2 332/01.8 320/01.4 259/02.4 260/03.0 271/03.4 353/02.3 009/03.9 096/00.5
11 061/02.2 027/02.5 024/02.4 014/02.8 024/02.0 002/01.5 276/01.9 266/03.1 264/03.1 260/03.2 258/03.1 314/02.3 269/03.4 182/00.6
12 158/04.2 220/02.4 290/03.2 065/02.1 358/01.9 321/01.9 314/02.3 298/01.8 290/01.4 290/02.2 297/01.5 255/02.9 115/05.1 154/00.3
13 126/06.2 114/07.3 133/06.2 173/05.1 195/02.6 189/03.2 233/03.3 238/03.7 226/06.9 235/06.8 171/06.5 189/04.2 114/07.3 202/01.2
14 114/08.4 117/07.2 121/05.0 121/04.8 121/03.3 025/01.1 289/01.2 271/01.7 241/02.1 255/01.5 328/01.4 149/04.3 114/08.4 025/01.1
15 074/02.6 075/03.6 034/03.3 027/02.3 360/02.9 332/02.2 319/02.0 313/01.9 327/02.7 358/02.4 342/02.5 005/02.2 075/03.6 024/01.0
16 050/02.0 053/02.3 027/02.5 359/02.6 048/02.5 353/01.4 295/01.0 298/01.1 273/01.6 271/01.8 289/01.3 006/01.8 353/03.2 285/00.6
17 354/05.1 346/07.2 318/07.1 303/07.6 315/05.7 004/04.6 013/03.0 319/02.3 335/02.2 337/02.1 345/02.2 317/03.4 303/07.6 030/00.5
18 071/02.2 076/02.5 061/02.2 032/02.2 018/02.7 006/02.3 355/02.3 357/01.7 306/01.1 275/01.4 276/01.5 011/01.9 018/02.7 301/00.8
19 026/02.0 015/02.2 032/02.1 013/02.6 011/02.6 012/01.9 323/01.3 303/01.1 275/01.8 269/02.2 282/01.7 332/01.7 011/02.6 287/00.5
20 027/02.3 030/02.6 011/02.8 005/03.6 355/04.0 332/02.8 312/02.2 317/01.8 289/01.4 266/02.3 269/02.9 335/02.1 355/04.0 330/00.7
21 024/02.9 085/02.1 087/01.9 009/02.4 353/02.7 339/02.1 286/01.5 266/02.5 269/02.4 259/02.7 258/02.6 216/03.3 124/07.1 286/01.5
22 098/03.7 359/02.5 046/01.6 128/02.0 072/01.6 341/01.3 267/01.9 260/02.7 269/02.9 247/02.5 279/01.3 201/03.1 123/06.5 133/01.3
23 158/03.4 181/02.0 109/03.6 046/02.2 018/01.7 334/01.7 278/02.0 266/02.7 276/03.4 161/02.0 113/03.1 116/03.2 114/07.7 297/00.8
24 038/02.8 011/02.6 013/02.8 022/02.5 355/02.3 329/01.7 297/01.6 264/03.0 269/02.5 263/03.2 268/03.9 075/02.8 136/05.2 149/00.8
25 068/01.7 027/03.0 004/03.3 360/03.2 357/03.1 323/02.1 308/01.7 270/02.5 268/03.9 269/03.6 262/03.9 316/02.3 268/03.9 204/00.3
26 097/03.5 109/02.5 360/02.3 116/02.4 155/02.5 244/03.9 206/04.2 136/03.1 131/05.0 190/04.7 159/05.8 166/02.9 159/05.8 302/01.1
27 277/04.5 285/03.6 301/02.8 354/03.6 358/03.7 342/02.3 336/02.5 002/03.4 349/05.6 326/03.9 314/03.2 060/04.0 121/07.7 050/01.1
28 026/02.9 015/03.0 017/02.8 360/02.6 350/02.9 350/02.6 330/01.7 288/01.2 303/01.4 273/01.6 272/01.7 347/02.3 296/03.4 288/01.2
29 185/05.1 204/06.0 220/04.7 195/04.6 209/02.8 204/02.4 216/03.0 217/04.1 236/04.7 214/04.6 157/04.8 207/03.7 135/07.2 224/00.6
30 175/06.1 190/05.4 208/04.4 217/03.9 207/02.9 241/03.6 237/03.4 221/04.5 245/05.4 272/08.2 315/03.8 191/04.9 272/08.2 225/01.2
MEAN 068/03.4 046/03.4 027/03.0 026/03.1 013/02.9 339/02.3 293/02.1 275/02.5 276/02.9 269/02.9 275/02.8 314/02.8
MAX 114/08.4 114/07.3 318/07.1 303/07.6 143/06.4 284/04.8 206/04.2 259/07.0 226/06.9 272/08.2 171/06.5 114/08.4
MIN 068/01.7 330/01.3 152/01.3 331/00.8 144/01.0 066/01.0 295/01.0 298/01.1 306/01.1 296/01.3 275/01.1 154/00.3
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =719 DATA RECOVERY RATE = 99.9%
MONTHLY MEAN = 314/02.8 MAXIMUM WIND SPEED =08.4 AT 114 DEGREES DATE OF OCCURRENCE = 6/14 AT 1400
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott C3
Joint Frequency Distribution for April, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 1.3 3.0 0.8 0.0 0.0 0.0 5.0 2.2
NNE 11.25 - 33.75 0.8 2.2 2.7 0.0 0.0 0.0 5.7 2.9
NE 33.75 - 56.25 0.8 2.2 0.3 0.0 0.0 0.0 3.3 2.1
ENE 56.25 - 78.75 0.3 1.9 0.0 0.0 0.0 0.0 2.2 1.9
E 78.75 - 101.25 0.6 3.3 0.0 0.0 0.0 0.0 3.9 2.0
ESE 101.25 - 123.75 1.6 3.6 1.3 1.1 0.0 0.0 7.5 3.1
SE 123.75 - 146.25 1.1 1.7 1.6 3.0 0.0 0.0 7.4 4.0
SSE 146.25 - 168.75 0.9 1.1 0.5 2.4 0.2 0.0 5.0 4.0
S 168.75 - 191.25 0.3 1.3 1.3 1.3 0.0 0.0 4.1 3.9
SSW 191.25 - 213.75 1.1 1.7 1.3 1.1 0.0 0.0 5.2 3.3
SW 213.75 - 236.25 0.5 1.9 1.9 0.8 0.3 0.2 5.5 4.1
WSW 236.25 - 258.75 1.1 2.8 1.1 0.6 0.0 0.2 5.8 3.1
W 258.75 - 281.25 2.5 5.0 4.4 1.3 0.3 0.0 13.5 3.1
WNW 281.25 - 303.75 4.2 3.3 3.3 0.8 0.2 0.0 11.8 2.7
NW 303.75 - 326.25 2.5 3.0 1.9 0.3 0.0 0.0 7.7 2.5
NNW 326.25 - 348.75 1.6 2.2 0.9 0.2 0.0 0.0 4.9 2.3
1.4
21.2 40.3 23.1 12.7 0.9 0.3 100.0 3.0
TOTAL NUMBER OF OBSERVATIONS =636
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =88.3%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott C3
Joint Frequency Distribution for May, 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 3.6 3.5 0.0 0.0 0.0 7.7 2.9
NNE 11.25 - 33.75 1.1 4.6 3.9 0.1 0.0 0.0 9.7 2.8
NE 33.75 - 56.25 0.8 3.4 0.1 0.0 0.0 0.0 4.3 2.0
ENE 56.25 - 78.75 0.5 1.3 0.0 0.0 0.0 0.0 1.9 1.8
E 78.75 - 101.25 1.1 1.6 0.1 0.0 0.0 0.0 2.8 1.7
ESE 101.25 - 123.75 1.2 3.6 1.9 0.3 0.0 0.0 7.0 2.6
SE 123.75 - 146.25 1.2 1.3 3.0 1.6 0.0 0.0 7.1 3.8
SSE 146.25 - 168.75 0.5 1.2 0.9 1.2 0.0 0.0 3.9 3.7
S 168.75 - 191.25 0.4 0.4 0.3 0.5 0.1 0.0 1.7 3.9
SSW 191.25 - 213.75 0.4 0.1 0.9 0.7 0.3 0.0 2.4 4.8
SW 213.75 - 236.25 0.5 1.1 0.9 0.5 0.3 0.1 3.5 3.9
WSW 236.25 - 258.75 0.7 2.8 0.8 0.1 0.0 0.0 4.4 2.5
W 258.75 - 281.25 2.3 9.4 3.2 0.5 0.0 0.0 15.5 2.6
WNW 281.25 - 303.75 2.2 3.9 2.7 1.2 0.0 0.0 9.9 2.9
NW 303.75 - 326.25 1.6 5.5 1.6 0.3 0.0 0.0 9.0 2.5
NNW 326.25 - 348.75 0.8 4.7 3.5 0.0 0.0 0.0 9.0 2.8
0.1
15.9 48.7 27.4 7.1 0.7 0.1 100.0 2.9
TOTAL NUMBER OF OBSERVATIONS =744
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott C3
Joint Frequency Distribution for June, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 0.7 4.6 2.2 0.3 0.0 0.0 7.8 2.8
NNE 11.25 - 33.75 1.1 5.4 0.7 0.0 0.0 0.0 7.2 2.3
NE 33.75 - 56.25 0.6 3.1 0.4 0.0 0.0 0.0 4.0 2.2
ENE 56.25 - 78.75 0.6 3.5 0.3 0.0 0.0 0.0 4.3 2.1
E 78.75 - 101.25 1.1 2.8 0.4 0.0 0.0 0.0 4.3 2.0
ESE 101.25 - 123.75 1.0 3.8 3.1 2.5 0.1 0.0 10.4 3.8
SE 123.75 - 146.25 0.6 1.1 2.1 3.3 0.0 0.0 7.1 4.7
SSE 146.25 - 168.75 0.4 0.6 0.7 0.6 0.0 0.0 2.2 3.5
S 168.75 - 191.25 0.3 1.7 0.7 0.4 0.0 0.0 3.1 3.2
SSW 191.25 - 213.75 0.1 1.1 0.6 0.6 0.0 0.0 2.4 3.7
SW 213.75 - 236.25 0.6 1.3 0.8 0.3 0.0 0.0 2.9 3.0
WSW 236.25 - 258.75 0.3 2.8 1.9 0.1 0.0 0.0 5.1 2.9
W 258.75 - 281.25 3.1 12.5 3.1 0.4 0.1 0.0 19.2 2.4
WNW 281.25 - 303.75 3.6 2.2 1.8 0.1 0.0 0.0 7.8 2.1
NW 303.75 - 326.25 1.4 2.6 1.3 0.3 0.0 0.0 5.6 2.5
NNW 326.25 - 348.75 1.3 3.9 0.7 0.1 0.0 0.0 6.0 2.3
0.6
16.6 52.9 20.7 9.0 0.3 0.0 100.0 2.8
TOTAL NUMBER OF OBSERVATIONS =719
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =99.9%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott C3
Joint Frequency Distribution for April - June 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 0.8 3.8 2.2 0.1 0.0 0.0 6.9 2.7
NNE 11.25 - 33.75 1.0 4.1 2.4 0.0 0.0 0.0 7.6 2.7
NE 33.75 - 56.25 0.7 2.9 0.3 0.0 0.0 0.0 3.9 2.1
ENE 56.25 - 78.75 0.5 2.2 0.1 0.0 0.0 0.0 2.8 2.0
E 78.75 - 101.25 1.0 2.5 0.2 0.0 0.0 0.0 3.7 1.9
ESE 101.25 - 123.75 1.2 3.7 2.1 1.3 0.0 0.0 8.3 3.2
SE 123.75 - 146.25 1.0 1.4 2.2 2.6 0.0 0.0 7.2 4.2
SSE 146.25 - 168.75 0.6 1.0 0.7 1.3 0.0 0.0 3.7 3.8
S 168.75 - 191.25 0.3 1.1 0.7 0.7 0.0 0.0 2.9 3.7
SSW 191.25 - 213.75 0.5 1.0 0.9 0.8 0.1 0.0 3.2 3.8
SW 213.75 - 236.25 0.5 1.4 1.2 0.5 0.2 0.1 3.9 3.7
WSW 236.25 - 258.75 0.7 2.8 1.3 0.3 0.0 0.0 5.1 2.9
W 258.75 - 281.25 2.6 9.1 3.5 0.7 0.1 0.0 16.2 2.6
WNW 281.25 - 303.75 3.3 3.1 2.6 0.7 0.0 0.0 9.8 2.6
NW 303.75 - 326.25 1.8 3.8 1.6 0.3 0.0 0.0 7.4 2.5
NNW 326.25 - 348.75 1.2 3.7 1.8 0.1 0.0 0.0 6.7 2.5
0.7
17.7 47.5 23.8 9.5 0.6 0.1 100.0 2.9
TOTAL NUMBER OF OBSERVATIONS =2099
POSSIBLE NUMBER OF OBSERVATIONS =2184
DATA RECOVERY =96.1%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott C3
WIND GUST in mps for APRIL, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 ---------------------------------------------------------------------------------
2 ---------------------------------------------------------------------------------
3 ---------------------------------------------------------------------------------
4 ------------------------------------17.5 14.5 17.8 15.1 15.7 16.2 22.2 18.4 17.0 19.4 19.6 17.9 ---------
5 7.8 6.5 7.3 10.1 6.1 4.3 7.5 8.7 16.6 20.8 15.8 21.2 24.6 24.2 17.7 14.2 13.3 9.3 11.5 9.5 2.4 2.6 6.1 7.3 11.5 24.6 2.4
6 7.8 2.7 12.6 15.4 15.9 12.7 3.8 5.7 7.2 9.3 11.4 14.3 8.5 8.2 9.8 11.4 13.6 11.7 10.8 8.8 6.8 6.6 4.2 3.7 9.3 15.9 2.7
7 4.7 6.2 5.5 6.0 6.8 6.5 6.0 1.6 4.8 5.9 7.7 7.7 8.8 8.1 7.3 5.7 4.5 4.4 4.2 3.1 3.7 4.9 3.6 2.8 5.4 8.8 1.6
8 4.5 3.0 4.0 4.6 3.2 2.0 3.5 5.4 7.5 8.9 8.6 7.0 7.7 7.4 7.6 7.6 5.5 6.6 8.0 9.0 6.7 3.4 2.5 4.6 5.8 9.0 2.0
9 5.8 5.6 2.5 4.0 6.0 4.0 3.0 3.1 4.7 5.9 7.4 5.6 5.7 8.1 11.3 9.0 7.8 5.3 3.5 2.5 2.9 2.9 3.9 3.7 5.2 11.3 2.5
10 5.6 6.7 5.2 5.9 4.7 4.0 3.8 2.6 3.9 10.7 7.1 8.0 7.5 11.5 6.9 9.3 8.4 7.7 5.2 4.7 3.7 4.3 6.3 6.5 6.3 11.5 2.6
11 6.8 4.6 5.3 5.5 5.8 5.7 5.7 3.8 5.0 9.4 9.7 8.6 9.3 8.1 8.1 6.3 6.9 8.5 5.8 4.2 4.0 3.8 5.0 6.0 6.3 9.7 3.8
12 3.8 7.4 9.9 8.3 8.6 10.3 11.9 12.4 12.8 12.8 12.2 11.7 15.5 13.1 13.4 13.5 16.0 11.4 7.9 6.2 11.8 8.2 8.7 7.6 10.6 16.0 3.8
13 6.5 8.9 8.6 9.0 9.4 10.6 9.5 11.1 10.3 12.3 12.3 15.8 15.3 12.6 16.9 11.8 13.4 16.1 8.3 4.8 5.6 4.2 12.4 11.6 10.7 16.9 4.2
14 4.8 6.0 8.0 6.9 5.0 3.6 2.9 7.9 11.8 13.7 14.2 15.6 16.1 13.7 11.9 9.9 9.7 8.2 9.0 7.2 10.9 10.8 10.6 10.0 9.5 16.1 2.9
15 11.6 8.7 4.4 2.0 2.9 2.2 2.7 4.6 4.7 4.8 4.1 7.3 10.9 11.8 10.3 9.7 5.5 3.3 4.4 2.9 2.4 3.4 4.2 9.4 5.8 11.8 2.0
16 4.0 5.6 8.0 4.8 8.9 10.3 10.8 9.7 5.5 5.2 8.2 6.3 4.8 6.5 6.7 6.0 4.6 4.3 2.6 2.0 4.4 4.7 4.3 4.5 6.0 10.8 2.0
17 4.7 2.3 4.2 4.0 3.7 3.4 4.5 4.3 7.1 7.8 8.1 7.4 9.3 9.6 9.3 9.8 9.6 9.7 8.8 5.3 8.4 9.3 8.9 11.1 7.1 11.1 2.3
18 7.0 7.7 3.3 1.6 2.8 2.4 3.4 4.0 5.1 5.2 5.9 6.9 6.9 6.6 6.7 4.9 4.8 5.0 5.0 2.5 1.4 2.0 1.8 1.9 4.4 7.7 1.4
19 1.8 2.2 1.8 2.3 1.5 1.7 1.7 2.9 3.0 3.0 4.4 5.6 6.8 7.1 6.3 6.5 5.6 5.7 4.7 3.8 3.6 3.8 3.3 4.3 3.9 7.1 1.5
20 2.4 3.4 2.4 3.1 4.0 3.9 3.0 1.3 3.8 4.0 6.3 5.4 6.5 8.0 6.8 7.8 8.5 6.7 4.7 3.6 3.2 4.5 6.0 5.9 4.8 8.5 1.3
21 4.3 5.2 5.7 6.1 6.6 5.4 1.7 6.1 9.7 11.4 11.2 12.5 13.0 7.3 11.4 8.6 7.9 6.1 3.8 4.4 4.4 4.7 8.0 7.8 7.2 13.0 1.7
22 6.7 4.1 5.1 5.3 5.3 5.3 4.3 5.1 4.9 4.2 5.1 6.3 6.2 5.5 6.2 5.9 5.1 3.8 3.6 2.9 3.8 4.7 2.8 3.7 4.8 6.7 2.8
23 4.8 2.8 4.1 2.4 5.0 2.5 3.1 5.7 3.2 4.3 5.7 6.9 6.1 8.1 7.6 8.2 7.8 5.7 4.1 2.3 2.9 3.7 4.5 3.8 4.8 8.2 2.3
24 5.2 3.5 3.1 4.0 4.6 3.7 4.5 7.4 10.7 12.3 11.6 13.4 11.8 12.4 10.1 12.2 10.2 10.0 8.3 7.0 4.2 7.3 14.0 12.4 8.5 14.0 3.1
25 6.1 9.5 9.8 8.5 8.5 2.7 2.5 2.9 4.5 4.4 12.5 10.4 10.3 4.4 3.1 5.0 15.7 15.8 10.8 7.5 6.1 4.0 3.9 3.8 7.2 15.8 2.5
26 3.4 2.6 2.3 1.5 1.4 1.0 2.4 3.1 5.3 5.4 5.2 4.5 4.2 2.9 5.2 7.7 5.9 4.5 3.6 0.8 2.9 2.6 2.6 3.3 3.5 7.7 0.8
27 1.5 0.8 3.0 3.6 5.1 8.2 9.9 8.8 5.3 10.7 12.3 11.3 12.3 13.2 10.0 7.6 7.6 7.3 6.8 3.8 1.8 1.5 1.7 1.6 6.5 13.2 0.8
28 7.3 4.9 3.3 3.4 2.2 2.8 1.8 1.5 2.5 3.5 7.8 4.9 4.3 5.4 8.7 8.9 7.5 5.9 3.8 3.4 4.0 3.5 4.6 5.1 4.6 8.9 1.5
29 3.6 2.7 1.7 1.6 2.4 1.6 2.0 6.1 8.0 8.4 10.8 11.5 10.3 12.9 13.4 9.9 11.3 9.2 17.1 11.6 11.7 14.3 9.9 8.3 8.3 17.1 1.6
30 9.6 7.0 6.0 6.8 5.2 5.0 3.4 4.4 5.0 4.9 6.8 5.9 6.0 8.2 8.5 7.2 5.4 4.5 5.6 3.7 5.0 2.8 4.8 3.5 5.6 9.6 2.8
MEAN 5.5 5.0 5.3 5.3 5.4 4.8 4.6 5.4 6.6 8.0 8.9 9.3 9.9 9.6 9.6 8.9 8.8 7.9 7.2 5.4 5.4 5.5 6.2 6.4 6.9
MAX 11.6 9.5 12.6 15.4 15.9 12.7 11.9 12.4 16.6 20.8 15.8 21.2 24.6 24.2 17.8 15.1 16.0 16.2 22.2 18.4 17.0 19.4 19.6 17.9 24.6
MIN 1.5 0.8 1.7 1.5 1.4 1.0 1.7 1.3 2.5 3.0 4.1 4.5 4.2 2.9 3.1 4.9 4.5 3.3 2.6 0.8 1.4 1.5 1.7 1.6 0.8
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =636 DATA RECOVERY RATE =
MONTHLY MEAN =6.9 mps
MAXIMUM WIND GUST =24.6 mps DATE OF OCCURRENCE =4/5 AT 1300 MAXIMUM DAILY MEAN =11.5 mps DATE OF OCCURRENCE =4/5
MINIMUM WIND GUST =0.8 mps DATE OF OCCURRENCE =4/26 AT 2000 MINUMUM DAILY MEAN =3.5 mps DATE OF OCCURRENCE =4/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
88.3%
Rio Tinto Kennecott C3
WIND GUST in mps for MAY, 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 6.5 9.1 7.5 8.9 7.3 6.6 9.0 9.7 9.5 9.1 11.2 9.6 10.1 9.4 9.4 8.3 7.7 6.6 6.3 5.0 3.8 5.7 5.6 5.3 7.8 11.2 3.8
2 4.6 3.4 3.4 2.7 3.6 3.7 5.1 7.7 9.8 10.3 12.0 11.8 11.4 7.1 8.8 12.3 12.0 10.2 6.6 3.0 3.4 11.9 11.0 9.3 7.7 12.3 2.7
3 9.9 7.7 5.7 9.7 7.1 7.3 9.2 7.3 7.0 10.1 12.2 11.6 10.8 9.3 12.6 9.5 9.1 7.3 3.9 3.3 3.5 3.4 3.1 3.9 7.7 12.6 3.1
4 2.5 3.0 3.1 5.1 3.7 3.5 4.6 9.4 11.0 12.8 13.8 14.8 14.5 15.9 17.1 15.0 14.0 19.2 11.4 10.6 7.4 17.2 21.8 22.2 11.4 22.2 2.5
5 21.5 21.3 18.1 18.8 20.8 22.7 19.4 20.5 20.7 15.7 10.8 8.0 4.7 4.7 4.1 2.8 4.3 4.3 4.4 2.3 4.8 4.1 2.2 2.4 11.0 22.7 2.2
6 2.9 4.8 7.3 7.6 9.4 10.9 11.6 8.6 7.1 5.8 6.6 5.8 7.1 9.1 8.1 8.7 5.8 6.6 4.4 2.9 3.1 3.0 3.1 2.7 6.4 11.6 2.7
7 4.5 6.0 6.3 8.6 7.0 6.0 9.6 14.3 13.8 13.8 14.0 14.4 14.3 13.1 10.8 11.9 13.7 12.6 13.0 12.0 8.7 7.8 7.7 7.3 10.5 14.4 4.5
8 7.2 8.7 10.2 8.9 3.6 3.1 4.4 5.9 4.7 4.2 4.4 6.0 7.7 11.4 8.1 8.6 7.7 7.6 6.3 3.9 4.4 5.6 5.8 3.8 6.3 11.4 3.1
9 6.5 4.4 4.5 4.2 3.7 2.7 2.3 2.6 6.8 6.1 6.6 6.7 7.2 10.6 11.0 13.3 5.4 4.4 5.1 4.1 6.7 4.2 3.5 4.2 5.7 13.3 2.3
10 5.7 5.9 6.7 4.5 4.4 8.5 7.4 5.8 7.8 5.5 5.8 6.1 4.9 9.6 9.2 10.2 8.9 2.7 2.8 3.0 4.3 3.1 4.3 4.9 5.9 10.2 2.7
11 4.6 3.9 4.5 4.1 4.5 3.1 4.8 4.9 4.8 5.6 8.9 7.2 9.3 7.8 8.5 8.7 9.6 7.8 11.4 8.0 2.9 4.1 6.9 3.8 6.2 11.4 2.9
12 3.3 2.8 3.2 2.3 2.9 2.8 1.9 3.5 3.1 4.6 6.5 6.0 5.9 7.3 7.5 11.3 7.5 7.7 5.1 4.2 4.3 2.5 2.7 3.3 4.7 11.3 1.9
13 3.2 4.0 7.2 7.6 7.0 5.1 3.3 5.5 7.2 8.6 7.4 8.6 8.0 5.6 4.9 5.6 11.1 8.5 5.7 8.2 19.8 5.8 4.4 4.0 6.9 19.8 3.2
14 4.9 5.1 4.4 4.8 3.1 3.7 2.6 3.5 4.2 4.3 5.6 5.6 9.5 9.8 8.8 9.8 9.3 10.0 8.2 4.0 4.0 4.5 5.5 3.9 5.8 10.0 2.6
15 3.4 3.2 4.1 3.8 5.7 5.1 3.0 3.4 4.5 5.0 5.9 6.6 8.8 8.5 8.9 8.4 7.8 6.7 5.8 2.7 2.8 2.7 3.2 3.0 5.1 8.9 2.7
16 2.3 3.6 4.3 3.6 3.8 2.8 2.3 3.5 4.1 5.2 5.5 5.1 6.3 6.8 6.7 7.3 7.8 6.0 4.9 3.5 4.8 5.6 5.3 6.2 4.9 7.8 2.3
17 5.4 5.2 5.0 6.1 7.3 6.3 3.1 4.2 6.3 10.8 8.5 10.4 12.3 10.4 9.1 9.0 7.7 9.0 8.6 8.0 6.7 6.5 6.3 5.3 7.4 12.3 3.1
18 5.3 5.4 5.3 4.1 4.5 2.7 1.0 3.4 3.7 5.0 6.6 6.8 7.2 5.7 5.6 4.3 5.1 3.2 2.4 4.5 12.9 18.1 6.8 10.6 5.8 18.1 1.0
19 10.4 8.1 6.2 5.4 8.5 9.8 6.1 5.2 5.3 8.4 10.7 10.7 11.3 10.8 9.3 9.4 9.2 9.6 6.9 5.6 5.5 5.9 6.8 8.3 8.1 11.3 5.2
20 5.5 4.5 7.6 10.3 8.6 6.9 3.7 2.8 2.0 7.8 10.7 8.8 10.0 8.8 5.0 7.3 7.7 10.9 8.0 8.0 5.7 3.7 6.1 11.1 7.1 11.1 2.0
21 5.5 4.0 3.7 5.4 6.9 5.4 5.2 4.0 6.1 7.2 7.9 6.7 7.7 8.9 8.3 9.4 9.0 7.8 5.0 2.6 4.2 4.8 3.1 3.8 5.9 9.4 2.6
22 1.9 3.7 2.6 5.0 2.9 4.5 8.8 3.9 9.7 12.0 11.3 11.8 9.7 11.7 11.3 12.8 14.2 10.8 10.3 11.1 8.7 16.6 16.1 12.5 9.3 16.6 1.9
23 8.1 6.3 4.7 4.7 5.1 7.0 8.9 11.4 10.6 8.6 9.8 8.5 10.0 11.9 10.1 9.7 11.3 8.5 7.5 4.4 3.1 3.0 5.1 5.1 7.6 11.9 3.0
24 5.5 5.9 5.5 3.5 4.6 2.6 3.3 5.6 7.3 9.2 9.1 8.5 8.3 11.0 14.8 13.4 13.0 16.0 12.4 11.1 10.2 8.3 4.7 5.6 8.3 16.0 2.6
25 5.8 7.8 9.0 10.2 9.7 10.6 10.0 7.4 9.0 12.4 13.2 12.6 13.1 4.7 3.9 3.9 5.0 13.2 6.1 3.4 2.6 3.9 3.7 7.0 7.8 13.2 2.6
26 6.1 4.4 4.2 4.8 4.1 3.8 1.7 3.1 3.8 5.9 5.3 5.6 5.2 5.6 6.0 6.8 5.3 4.9 4.4 3.0 3.9 5.5 5.4 6.5 4.8 6.8 1.7
27 5.4 4.9 5.7 5.2 4.3 4.1 2.9 4.4 3.9 4.4 4.6 5.9 6.2 6.7 5.2 5.9 5.8 4.8 3.6 2.9 4.0 5.3 6.3 4.6 4.9 6.7 2.9
28 4.7 5.1 5.5 4.3 3.5 3.6 3.0 3.2 4.0 7.0 7.6 7.5 8.2 14.9 11.5 6.8 4.5 4.0 7.1 12.9 7.2 7.5 9.3 11.9 6.9 14.9 3.0
29 11.5 9.6 6.3 2.7 3.3 3.7 2.9 6.9 6.9 6.1 7.7 10.1 12.1 11.8 10.1 11.6 11.1 9.3 9.8 6.9 3.8 6.8 7.7 5.4 7.7 12.1 2.7
30 6.8 6.0 5.5 5.1 4.7 4.8 5.7 7.3 7.3 7.7 6.2 6.2 7.5 7.5 6.5 6.6 6.8 7.7 4.8 3.0 2.8 4.5 2.6 4.2 5.7 7.7 2.6
31 4.7 3.5 3.2 3.2 3.6 3.7 2.2 3.3 3.4 5.5 5.1 5.0 5.1 6.9 6.3 6.3 6.2 5.5 4.4 3.4 2.6 3.3 7.2 3.4 4.5 7.2 2.2
MEAN 6.0 5.9 5.8 6.0 5.8 5.7 5.4 6.2 6.9 7.9 8.4 8.4 8.9 9.1 8.6 8.9 8.5 8.2 6.7 5.5 5.6 6.3 6.2 6.3 7.0
MAX 21.5 21.3 18.1 18.8 20.8 22.7 19.4 20.5 20.7 15.7 14.0 14.8 14.5 15.9 17.1 15.0 14.2 19.2 13.0 12.9 19.8 18.1 21.8 22.2 22.7
MIN 1.9 2.8 2.6 2.3 2.9 2.6 1.0 2.6 2.0 4.2 4.4 5.0 4.7 4.7 3.9 2.8 4.3 2.7 2.4 2.3 2.6 2.5 2.2 2.4 1.0
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =7.0 mps
MAXIMUM WIND GUST =22.7 mps DATE OF OCCURRENCE =5/5 AT 0600 MAXIMUM DAILY MEAN =11.4 mps DATE OF OCCURRENCE =5/4
MINIMUM WIND GUST =1.0 mps DATE OF OCCURRENCE =5/18 AT 0700 MINUMUM DAILY MEAN =4.5 mps DATE OF OCCURRENCE =5/31
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Rio Tinto Kennecott C3
WIND GUST in mps for JUNE, 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 4.6 4.4 3.9 3.8 4.3 3.4 3.3 1.9 5.7 5.3 7.9 7.6 9.4 6.5 8.0 7.6 7.5 8.0 5.3 6.5 5.8 2.8 4.3 5.2 5.5 9.4 1.9
2 7.3 6.6 3.7 5.3 4.7 4.6 4.1 4.1 5.5 6.5 8.9 7.2 6.5 6.5 6.0 5.0 4.1 2.8 3.0 2.5 3.9 3.5 3.8 3.9 5.0 8.9 2.5
3 6.1 6.7 8.2 6.9 6.3 7.6 5.4 2.8 4.5 5.3 5.0 16.7 9.3 10.8 16.2 7.7 3.1 3.3 4.3 3.0 3.9 3.3 3.1 2.9 6.3 16.7 2.8
4 4.3 4.3 5.2 6.9 7.2 6.5 7.9 7.3 10.1 10.7 10.1 12.0 7.3 8.4 8.3 7.2 7.4 6.5 4.8 3.3 4.0 4.5 4.4 4.0 6.8 12.0 3.3
5 5.1 4.6 7.6 6.7 6.1 4.7 2.3 3.3 4.3 6.0 5.8 6.2 7.1 8.6 8.7 9.7 9.3 8.8 6.3 2.9 4.5 5.6 5.4 7.5 6.1 9.7 2.3
6 6.8 6.8 5.2 3.8 4.4 3.0 1.6 2.7 3.6 5.5 5.0 5.8 5.4 7.0 5.7 6.7 5.0 4.8 3.6 3.5 3.9 6.1 6.3 10.4 5.1 10.4 1.6
7 10.2 11.2 9.9 6.0 4.3 4.5 3.9 4.0 4.6 5.6 6.0 6.3 8.9 7.2 7.2 7.2 5.9 13.6 11.3 10.7 13.9 11.5 4.5 4.7 7.6 13.9 3.9
8 5.0 5.5 8.0 5.2 4.2 3.6 2.0 3.3 3.1 3.9 5.8 7.0 6.8 7.0 7.3 4.5 5.5 4.8 3.0 2.4 4.2 3.4 4.9 4.4 4.8 8.0 2.0
9 6.7 7.2 4.4 3.6 7.8 3.4 3.0 5.1 7.5 7.1 9.0 9.1 7.1 7.5 6.2 7.3 15.0 15.4 9.4 5.5 12.6 10.4 10.8 2.9 7.7 15.4 2.9
10 4.6 3.9 4.7 5.0 5.7 6.1 3.6 2.7 4.5 4.6 7.3 6.2 6.7 7.7 7.3 8.1 9.0 8.3 6.8 3.8 3.2 4.1 5.2 6.1 5.6 9.0 2.7
11 6.9 5.2 4.7 3.4 3.7 4.3 2.3 3.0 4.6 5.3 6.2 6.5 6.2 6.7 8.3 7.9 6.6 6.0 4.6 3.4 5.3 5.8 5.8 6.1 5.4 8.3 2.3
12 6.2 7.5 7.8 8.0 8.0 6.2 5.2 1.0 6.9 8.1 9.3 8.7 ---13.6 7.7 8.5 6.6 4.8 4.4 5.2 3.7 4.0 5.3 4.8 6.6 13.6 1.0
13 3.9 3.4 4.4 5.0 4.2 3.2 2.4 6.2 8.6 11.2 10.8 11.4 12.5 13.7 12.6 13.8 11.8 8.7 6.8 6.7 7.9 11.0 12.8 12.7 8.6 13.8 2.4
14 12.6 11.7 9.2 10.6 6.9 5.1 6.7 10.7 11.3 13.3 12.0 16.6 13.4 14.0 13.9 9.8 9.2 7.5 4.0 2.6 3.3 6.0 3.5 4.1 9.1 16.6 2.6
15 7.9 4.8 5.8 4.8 4.6 3.8 4.7 3.8 3.6 5.0 5.3 5.4 8.2 9.5 8.3 8.3 6.3 6.8 6.6 4.4 4.4 7.2 6.1 5.0 5.9 9.5 3.6
16 4.7 5.1 2.5 5.7 7.2 7.3 5.2 5.2 3.5 4.8 6.5 6.2 5.4 6.6 6.5 7.2 6.8 6.6 4.6 2.3 2.5 2.9 3.6 3.4 5.1 7.3 2.3
17 3.9 3.2 4.3 5.7 3.9 2.6 1.8 4.8 7.5 9.8 10.4 12.0 11.6 14.0 15.3 16.2 17.8 13.5 12.9 8.8 5.9 4.6 4.1 5.8 8.4 17.8 1.8
18 9.3 5.1 4.2 2.5 2.4 2.4 3.8 5.4 6.0 5.2 5.6 7.2 6.7 7.6 5.8 6.8 6.9 6.2 6.0 6.3 4.8 2.9 2.7 3.3 5.2 9.3 2.4
19 3.2 4.0 3.0 2.9 3.7 3.2 2.0 3.4 4.2 3.9 5.0 5.8 6.5 5.6 5.9 5.9 6.9 6.7 5.8 3.5 2.7 3.5 3.8 3.7 4.4 6.9 2.0
20 3.6 4.2 5.4 4.3 2.8 2.6 2.5 2.2 3.4 5.3 4.7 5.6 7.4 6.6 7.1 7.1 8.5 8.3 7.5 5.5 3.6 2.7 4.8 5.3 5.0 8.5 2.2
21 4.5 7.1 4.7 9.0 7.6 7.8 9.5 10.6 11.4 11.2 12.6 14.2 8.3 8.9 6.0 4.4 6.9 6.8 5.6 2.8 4.7 5.4 4.9 5.0 7.5 14.2 2.8
22 5.7 3.9 4.2 4.1 4.7 4.5 3.5 9.3 10.2 12.9 11.5 11.3 10.7 8.4 7.0 4.8 5.4 5.7 3.4 3.4 3.9 5.1 4.1 3.5 6.3 12.9 3.4
23 3.3 8.1 8.6 2.9 3.2 4.9 5.7 10.2 11.8 12.7 11.9 11.3 13.1 10.2 7.3 9.3 6.3 4.7 6.5 3.9 4.9 6.6 6.5 8.2 7.6 13.1 2.9
24 6.7 5.5 8.6 4.5 4.5 3.5 6.3 9.1 8.3 7.9 8.1 8.0 7.2 7.3 6.5 7.7 7.5 5.9 4.3 3.4 4.7 5.6 6.7 7.0 6.4 9.1 3.4
25 5.3 5.1 5.5 4.5 4.0 3.0 1.9 3.3 4.1 4.4 5.9 6.8 6.5 5.9 7.3 7.7 7.2 7.4 5.2 3.2 4.5 6.3 6.0 6.2 5.3 7.7 1.9
26 5.2 7.0 6.8 8.4 3.1 4.2 5.2 4.2 5.1 6.1 6.8 8.1 8.2 9.6 8.3 7.6 7.5 8.9 13.7 11.4 8.7 14.8 11.0 12.9 8.0 14.8 3.1
27 13.8 9.0 7.8 3.4 10.4 10.2 8.0 11.2 12.5 9.5 11.4 10.2 11.3 13.8 9.2 9.0 9.0 8.0 5.5 8.9 9.4 11.5 8.0 8.4 9.6 13.8 3.4
28 7.8 6.1 4.7 4.0 5.5 5.1 6.1 7.7 7.1 7.4 6.7 7.4 7.2 7.0 7.9 7.6 6.7 5.9 5.9 4.4 3.6 3.6 3.5 4.0 5.9 7.9 3.5
29 3.7 2.9 2.9 2.6 1.9 2.3 1.7 8.7 8.7 11.8 11.9 15.5 12.3 12.7 14.6 12.1 11.0 8.0 7.3 7.1 7.0 8.5 9.0 8.7 8.0 15.5 1.7
30 8.7 7.7 7.0 5.0 4.5 8.8 8.3 11.6 12.2 15.7 14.5 22.1 16.2 15.0 12.3 13.4 11.6 7.5 11.0 7.9 9.9 10.4 16.5 13.1 11.3 22.1 4.5
MEAN 6.3 5.9 5.8 5.1 5.1 4.7 4.3 5.6 6.8 7.7 8.3 9.5 8.7 9.1 8.6 8.2 7.9 7.3 6.3 5.0 5.5 6.1 6.0 6.1 6.7
MAX 13.8 11.7 9.9 10.6 10.4 10.2 9.5 11.6 12.5 15.7 14.5 22.1 16.2 15.0 16.2 16.2 17.8 15.4 13.7 11.4 13.9 14.8 16.5 13.1 22.1
MIN 3.2 2.9 2.5 2.5 1.9 2.3 1.6 1.0 3.1 3.9 4.7 5.4 5.4 5.6 5.7 4.4 3.1 2.8 3.0 2.3 2.5 2.7 2.7 2.9 1.0
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =719 DATA RECOVERY RATE =
MONTHLY MEAN =6.7 mps
MAXIMUM WIND GUST =22.1 mps DATE OF OCCURRENCE =6/30 AT 1200 MAXIMUM DAILY MEAN =11.3 mps DATE OF OCCURRENCE =6/30
MINIMUM WIND GUST =1.0 mps DATE OF OCCURRENCE =6/12 AT 0800 MINUMUM DAILY MEAN =4.4 mps DATE OF OCCURRENCE =6/19
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.9%
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for April, 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
1 194/01.6 329/00.9 341/00.6 022/02.0 045/01.3 345/01.1 348/01.8 009/01.6 019/01.7 020/01.9 037/03.6 001/06.5 318/03.9
2 340/04.6 324/03.6 317/03.5 325/02.0 320/02.2 355/01.5 290/01.8 358/01.6 042/01.9 047/02.0 051/02.2 043/02.5 028/02.8
3 237/03.5 228/03.0 231/03.8 232/03.8 233/03.6 220/04.0 196/05.0 187/05.1 171/04.9 163/05.3 146/05.3 148/05.7 147/05.9
4 192/10.7 192/12.4 194/12.1 189/13.2 176/11.4 180/08.7 177/06.5 173/06.6 181/08.7 181/09.8 174/12.7 175/11.6 178/10.6
5 165/08.8 170/07.3 169/06.7 173/07.2 174/05.9 181/06.6 169/05.6 169/05.7 166/09.2 180/12.6 200/08.5 207/10.7 216/11.6
6 289/04.5 294/02.5 293/06.2 302/09.7 291/09.7 305/07.0 352/05.0 333/05.8 320/05.3 318/03.9 309/05.3 308/03.9 250/02.4
7 324/06.3 318/05.9 312/05.0 297/02.6 268/02.4 243/02.9 227/03.4 219/02.4 024/02.1 300/03.3 302/03.0 319/03.5 306/04.8
8 309/02.2 304/03.1 317/01.8 293/02.5 297/02.6 043/01.5 274/01.5 002/04.0 017/05.6 021/06.3 018/06.7 005/05.7 011/05.2
9 272/02.4 263/02.1 255/02.1 271/01.6 267/01.5 297/01.7 295/02.4 039/01.9 062/02.4 354/02.8 017/02.6 009/02.9 012/03.5
10 308/02.8 307/03.4 335/03.5 347/04.2 347/05.4 335/05.6 324/04.8 196/01.7 099/01.7 322/03.5 308/04.5 340/04.9 359/04.0
11 233/01.7 234/02.2 226/03.2 227/03.5 226/03.9 226/03.7 218/03.9 047/01.4 078/02.9 174/06.4 159/06.8 147/05.3 135/04.7
12 025/01.7 191/05.4 179/05.9 178/06.0 182/07.7 183/08.1 184/08.8 178/07.5 176/07.3 172/07.1 164/07.0 155/07.7 157/08.1
13 181/06.2 184/05.7 194/04.7 194/06.2 183/07.3 179/07.5 176/07.9 173/07.8 159/06.5 146/06.7 149/07.2 159/08.1 147/06.9
14 196/06.9 195/08.0 191/06.1 186/05.0 190/05.5 191/05.2 155/03.0 158/06.2 158/08.0 172/08.1 172/08.8 174/09.2 186/07.6
15 241/05.2 187/06.1 214/04.5 334/01.6 167/00.5 213/01.1 001/00.9 189/02.1 350/03.5 083/02.5 079/02.5 353/03.6 312/05.4
16 009/05.1 356/04.9 330/05.3 322/04.2 308/05.8 301/07.6 298/07.5 319/04.9 041/02.6 088/02.5 318/05.4 329/04.5 351/02.9
17 202/05.1 226/03.5 301/01.6 281/01.9 243/03.1 199/02.0 208/01.9 028/01.7 065/02.8 069/04.2 356/05.7 008/05.5 010/05.8
18 246/02.4 119/02.1 061/01.9 134/01.4 174/01.3 176/01.8 156/01.7 119/02.2 099/02.5 042/02.7 043/03.0 067/02.7 027/02.6
19 174/01.5 027/01.2 348/01.1 228/01.9 194/01.6 194/01.8 164/01.1 148/01.5 065/01.8 044/01.6 036/02.4 055/03.3 048/03.9
20 307/01.8 006/01.0 276/01.9 229/03.6 234/02.5 219/03.4 211/02.7 013/01.7 058/01.9 053/02.6 087/03.1 050/03.1 004/03.9
21 228/03.4 227/03.7 228/03.8 225/04.1 229/04.9 223/03.0 189/02.0 179/04.8 172/06.6 173/07.9 169/08.2 174/08.1 159/07.1
22 162/03.1 164/02.1 145/01.1 021/02.1 016/01.4 014/02.1 320/03.0 051/03.0 049/01.9 048/02.2 040/02.7 060/03.0 073/03.2
23 158/02.0 198/01.8 015/01.8 226/01.8 023/02.6 248/02.6 237/01.2 019/01.6 025/01.8 026/02.2 025/03.5 030/03.6 042/03.5
24 182/02.1 212/02.9 220/03.9 218/04.3 166/02.9 173/05.2 189/06.3 173/05.1 175/07.0 175/06.9 156/07.0 160/08.8 157/08.2
25 261/02.4 196/02.1 252/03.5 266/02.0 245/01.3 341/01.3 303/01.8 216/02.2 020/02.6 049/02.7 223/04.9 232/04.4 295/03.8
26 350/00.7 219/01.8 225/03.2 220/03.0 252/01.9 302/01.1 337/01.0 018/01.4 081/02.6 018/04.0 036/02.4 049/01.6 232/01.7
27 220/01.8 313/01.1 271/01.3 176/00.8 199/01.2 165/01.2 221/02.7 251/01.8 052/01.8 354/03.4 317/05.9 293/07.9 296/08.9
28 290/04.0 360/03.1 328/01.4 024/01.9 201/01.7 295/03.0 004/01.4 038/01.0 129/01.2 300/01.7 309/04.2 001/03.5 015/03.9
29 191/06.8 198/06.8 205/04.7 184/04.9 186/06.1 204/05.3 209/04.2 176/02.5 161/06.6 169/07.5 166/05.9 173/05.8 182/04.9
30 015/06.3 004/06.7 355/07.0 356/04.7 037/02.1 350/03.6 288/02.0 108/01.6 045/02.4 074/02.9 029/02.5 085/03.1 079/03.2
MEAN 242/03.9 243/03.9 264/03.8 249/03.8 228/03.7 239/03.7 239/03.4 129/03.3 081/03.9 067/04.6 054/05.1 050/05.4 023/05.2
MAX 192/10.7 192/12.4 194/12.1 189/13.2 176/11.4 180/08.7 184/08.8 173/07.8 166/09.2 180/12.6 174/12.7 175/11.6 216/11.6
MIN 350/00.7 329/00.9 341/00.6 176/00.8 167/00.5 213/01.1 001/00.9 038/01.0 129/01.2 044/01.6 051/02.2 049/01.6 232/01.7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for April, 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
1 309/06.0 303/07.7 311/05.9 323/07.2 343/07.5 337/05.9 333/05.1 333/05.6 336/06.6 335/05.8 340/06.1 344/04.1 303/07.7 341/00.6
2 037/03.2 042/02.9 038/03.2 020/03.8 029/03.4 358/01.8 259/02.0 238/02.6 240/02.3 232/02.1 228/03.0 351/02.6 340/04.6 355/01.5
3 153/06.7 155/06.9 159/06.2 157/05.9 162/04.5 187/04.2 191/03.6 226/02.3 192/06.3 194/05.7 194/06.9 188/04.9 194/06.9 226/02.3
4 174/10.4 181/13.5 182/12.4 181/11.6 179/11.2 194/09.7 200/10.2 202/10.1 201/10.0 198/11.0 183/10.3 185/10.6 181/13.5 177/06.5
5 218/08.1 182/09.2 182/08.3 272/06.9 304/07.1 301/07.5 344/04.7 025/02.0 296/01.4 274/03.2 301/04.8 208/07.1 180/12.6 296/01.4
6 331/03.6 319/04.1 301/03.9 315/06.6 328/05.2 330/05.7 327/07.0 328/07.1 321/07.2 341/05.0 339/04.7 315/05.5 291/09.7 250/02.4
7 316/04.6 312/03.8 073/03.0 032/01.5 044/02.3 050/01.9 273/01.4 274/01.5 011/02.1 003/02.8 320/02.3 318/03.1 324/06.3 273/01.4
8 020/04.9 006/05.5 350/06.1 350/05.9 314/04.8 325/03.4 313/04.2 315/03.7 314/02.6 294/02.0 277/02.6 334/03.9 018/06.7 043/01.5
9 356/04.6 312/05.1 335/05.1 014/04.8 018/03.7 018/02.4 260/01.6 232/02.7 226/02.7 233/03.3 300/02.6 316/02.9 312/05.1 267/01.5
10 003/04.5 007/05.3 330/04.8 321/06.7 308/06.5 322/04.0 011/01.8 233/03.2 235/03.4 232/04.1 242/03.4 320/04.1 321/06.7 099/01.7
11 128/04.8 154/05.8 155/07.3 156/06.0 158/04.3 195/03.9 223/04.4 216/04.0 205/03.9 204/03.8 197/03.8 186/04.2 155/07.3 047/01.4
12 174/07.6 176/09.8 194/07.6 196/07.3 201/07.1 185/06.2 182/06.3 197/06.0 184/06.8 202/05.3 208/04.9 182/06.8 176/09.8 025/01.7
13 151/07.1 160/06.9 156/07.3 165/06.0 167/05.3 169/04.6 222/04.7 211/04.3 200/04.7 203/07.2 187/06.9 175/06.4 159/08.1 211/04.3
14 183/07.8 193/05.6 192/05.1 206/04.9 207/04.3 210/03.7 211/04.0 176/04.5 226/03.7 232/05.7 244/04.7 192/05.9 174/09.2 155/03.0
15 310/07.4 311/05.8 318/04.1 021/02.1 078/01.2 153/01.7 010/01.3 248/01.2 248/01.6 207/02.2 328/08.5 296/03.2 328/08.5 167/00.5
16 118/03.1 032/02.5 055/02.4 008/02.7 026/02.9 332/01.4 226/02.6 229/03.1 222/03.7 215/05.2 209/05.4 333/04.1 301/07.6 332/01.4
17 017/05.5 022/05.8 016/05.5 012/06.5 008/06.2 352/06.8 323/04.9 340/08.2 351/06.6 207/02.0 226/02.3 339/04.4 340/08.2 301/01.6
18 065/03.4 042/03.0 044/02.9 049/02.5 062/02.4 019/02.5 259/01.9 222/01.4 203/02.0 185/01.7 226/02.3 100/02.3 065/03.4 174/01.3
19 034/04.5 016/04.4 019/04.6 019/03.8 023/03.6 019/02.9 301/02.2 031/01.7 247/02.5 239/02.6 234/03.5 030/02.6 019/04.6 164/01.1
20 355/05.8 357/06.5 342/05.1 351/05.7 009/04.7 023/03.2 281/02.2 246/02.7 254/02.6 234/03.6 235/02.9 322/03.3 357/06.5 006/01.0
21 171/04.3 162/06.0 229/03.9 243/03.5 199/03.3 214/03.6 221/04.9 226/05.4 224/04.7 243/04.3 135/02.4 202/04.7 169/08.2 189/02.0
22 039/03.2 050/02.8 029/03.3 018/03.9 021/02.3 029/01.5 247/02.7 258/02.0 238/02.1 058/01.3 205/01.9 041/02.4 018/03.9 145/01.1
23 017/04.0 017/04.5 022/05.1 030/04.6 011/03.5 333/01.7 210/01.8 221/01.8 242/02.1 249/02.6 346/01.8 353/02.6 022/05.1 237/01.2
24 165/07.2 170/06.2 183/07.0 175/07.8 193/06.0 215/04.2 224/04.1 218/04.3 206/04.2 267/06.7 276/02.8 192/05.4 160/08.8 182/02.1
25 056/02.3 028/01.5 033/02.8 319/05.1 288/07.5 267/02.4 023/03.7 148/01.7 181/02.1 238/02.2 326/01.4 284/02.8 288/07.5 341/01.3
26 261/01.0 121/01.6 132/03.1 122/02.4 045/02.1 017/02.6 017/02.0 039/00.8 179/00.9 211/01.3 207/01.9 009/01.9 018/04.0 350/00.7
27 303/09.1 315/07.9 318/06.7 321/05.8 315/06.8 008/05.1 026/03.1 160/01.4 002/00.8 130/01.2 087/00.7 301/03.7 303/09.1 087/00.7
28 331/06.1 318/06.2 305/04.0 323/04.2 326/04.6 059/01.8 171/02.0 224/04.2 220/05.4 197/05.6 206/04.8 317/03.4 318/06.2 038/01.0
29 214/04.0 227/05.5 196/05.7 209/05.4 189/04.8 219/06.2 256/07.9 320/10.3 334/08.8 318/08.6 355/06.6 205/06.1 320/10.3 176/02.5
30 082/03.3 142/03.9 035/02.9 054/03.0 121/02.8 169/02.9 208/03.9 227/04.1 214/03.2 225/02.4 268/02.1 053/03.4 355/07.0 108/01.6
MEAN 029/05.3 019/05.5 010/05.2 354/05.1 006/04.7 328/03.8 263/03.7 240/03.8 239/03.9 232/04.0 248/03.9 255/04.3
MAX 174/10.4 181/13.5 182/12.4 181/11.6 179/11.2 194/09.7 200/10.2 320/10.3 201/10.0 198/11.0 183/10.3 181/13.5
MIN 261/01.0 028/01.5 055/02.4 032/01.5 078/01.2 332/01.4 010/01.3 039/00.8 002/00.8 130/01.2 087/00.7 167/00.5
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE = 100.0%
MONTHLY MEAN = 255/04.3 MAXIMUM WIND SPEED =13.5 AT 181 DEGREES DATE OF OCCURRENCE = 4/4 AT 1500
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for May, 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
1 068/01.7 039/02.8 344/03.7 339/05.5 333/04.6 336/05.2 346/05.4 001/07.5 002/07.3 330/05.6 322/06.1 340/06.0 331/06.7
2 346/05.4 310/02.8 268/01.9 236/02.8 227/03.2 230/03.4 188/02.7 161/04.8 162/06.4 161/06.9 167/08.6 154/08.4 168/06.4
3 342/06.3 342/05.5 310/05.8 312/05.3 350/04.4 333/03.6 329/08.4 325/06.0 336/06.6 322/06.7 310/06.5 314/05.6 329/06.1
4 212/04.7 206/04.6 183/02.7 202/02.2 215/03.5 204/04.6 185/03.9 173/05.3 166/06.2 175/10.6 169/09.8 164/08.1 159/08.6
5 183/16.2 179/15.4 181/13.0 187/13.5 188/14.1 194/15.6 194/15.1 194/13.2 205/12.1 182/09.6 089/04.2 139/03.0 120/02.3
6 ------------------232/02.7 155/02.4 131/02.7 115/02.7 109/01.4 005/01.8 084/02.0
7 274/02.9 327/02.4 302/05.3 309/07.6 312/04.8 327/03.4 318/05.1 291/07.5 290/07.5 310/08.4 303/07.2 314/09.7 312/07.4
8 321/05.8 301/06.5 296/05.0 236/02.2 228/02.2 265/01.5 051/01.5 083/02.0 051/02.5 067/02.9 038/03.1 012/03.0 335/04.0
9 341/04.2 320/02.6 335/02.9 323/03.9 332/04.2 335/04.0 332/02.7 002/02.8 005/04.1 006/05.4 359/05.2 356/05.1 356/05.8
10 333/04.5 332/03.6 314/02.6 203/02.1 204/01.7 216/01.8 314/02.5 031/02.4 008/04.6 029/03.3 063/02.7 053/03.1 047/03.2
11 239/03.4 289/01.9 267/02.5 274/02.1 309/01.9 330/01.8 345/02.1 006/04.9 008/04.5 025/04.1 020/04.4 003/05.8 357/05.3
12 197/06.5 207/03.0 255/01.6 238/00.9 248/00.8 245/02.1 160/01.2 054/01.3 089/02.3 084/02.5 060/03.0 029/02.7 057/03.2
13 234/03.0 238/03.1 235/03.5 233/03.6 230/03.1 225/03.4 181/01.6 154/02.2 164/05.4 166/06.1 163/05.3 165/05.1 159/04.2
14 236/02.1 239/02.7 240/02.4 249/02.1 219/01.6 230/03.6 269/01.5 022/02.6 033/02.9 057/03.0 025/02.9 343/06.7 327/06.9
15 310/02.7 314/02.6 267/02.1 234/03.5 255/02.5 313/01.8 164/01.2 079/01.6 031/03.2 022/04.4 011/04.1 053/03.7 033/04.2
16 292/02.1 278/02.1 266/02.1 243/02.4 242/01.8 031/00.8 141/00.9 094/01.7 062/02.3 065/02.9 055/03.0 062/02.7 026/03.2
17 219/04.7 221/05.3 223/04.8 223/04.8 222/05.2 221/05.5 220/03.9 195/04.1 190/05.2 172/04.0 235/03.7 321/07.2 314/06.2
18 350/08.6 350/06.1 002/02.5 187/02.6 180/02.8 207/02.8 149/01.9 356/01.1 038/02.2 086/02.2 096/03.0 078/03.2 079/02.9
19 190/07.5 192/06.6 194/03.3 228/03.3 242/04.5 236/02.3 275/02.6 316/04.3 323/04.1 330/06.3 326/08.7 035/06.7 052/07.4
20 310/02.2 021/02.6 360/02.8 323/06.3 173/02.4 114/02.1 081/01.5 268/01.4 194/01.6 160/04.0 177/06.4 184/07.8 175/06.4
21 265/03.8 332/04.1 316/02.6 330/03.2 317/03.6 283/03.2 330/03.0 019/02.8 074/02.3 208/01.9 094/01.8 018/03.6 338/05.0
22 202/07.1 210/07.0 196/07.1 190/07.0 190/05.8 203/04.1 194/08.9 187/10.4 178/10.3 178/09.4 165/09.0 155/07.7 188/05.7
23 349/08.2 357/07.4 001/06.0 356/06.0 336/07.0 328/05.7 307/05.3 257/03.4 316/06.9 347/06.3 014/06.8 329/08.1 342/05.8
24 239/03.5 237/03.4 224/04.1 213/04.3 228/03.4 251/01.7 176/01.6 162/03.8 165/05.1 160/05.3 164/06.6 144/05.7 145/06.0
25 195/03.7 181/05.7 181/09.6 191/08.5 197/08.8 196/08.5 200/08.4 192/05.9 177/06.5 177/08.5 179/07.9 191/07.2 325/06.2
26 216/05.9 209/05.9 210/05.4 206/05.7 203/05.3 220/04.7 222/03.2 059/02.0 020/02.8 075/02.6 071/03.0 021/02.9 008/02.6
27 255/01.9 237/03.3 233/03.2 284/02.0 266/01.7 216/01.4 183/01.4 075/01.7 045/02.2 033/02.3 039/02.4 031/03.1 033/03.3
28 221/02.9 229/03.7 228/03.7 222/03.1 222/02.6 229/02.3 204/01.4 075/01.5 071/01.9 131/04.0 146/04.6 159/04.5 065/04.4
29 190/08.3 184/08.7 187/08.9 206/05.1 195/04.5 185/07.4 203/03.9 190/06.6 172/06.8 152/04.5 105/03.7 009/05.8 314/07.7
30 348/08.4 342/08.0 339/06.1 343/05.4 339/05.5 335/02.5 004/05.8 012/04.7 017/04.6 031/04.2 044/03.8 046/03.8 039/03.9
31 252/02.7 273/02.2 295/01.9 313/01.1 219/02.3 229/02.6 052/01.0 059/01.5 055/02.1 039/02.5 036/03.0 051/03.2 072/03.2
MEAN 261/05.0 271/04.7 264/04.3 249/04.3 241/04.0 249/03.8 222/03.6 068/04.0 063/04.7 087/04.9 071/04.9 038/05.2 025/05.0
MAX 183/16.2 179/15.4 181/13.0 187/13.5 188/14.1 194/15.6 194/15.1 194/13.2 205/12.1 175/10.6 169/09.8 314/09.7 159/08.6
MIN 068/01.7 289/01.9 255/01.6 238/00.9 248/00.8 031/00.8 141/00.9 356/01.1 194/01.6 208/01.9 109/01.4 005/01.8 084/02.0
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for May, 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
1 340/07.4 334/07.5 330/05.2 351/05.1 357/06.4 358/06.6 360/06.0 345/05.4 339/06.4 355/08.0 355/05.3 349/05.7 355/08.0 068/01.7
2 182/05.9 152/05.6 234/04.1 142/05.1 178/05.2 178/03.0 185/03.5 206/03.4 204/02.3 188/03.0 338/03.3 194/04.5 167/08.6 268/01.9
3 347/05.0 025/07.5 026/06.6 015/06.4 015/05.2 001/03.1 240/03.0 227/02.6 228/03.7 223/02.8 215/03.5 324/05.3 329/08.4 227/02.6
4 159/07.6 164/08.9 160/08.6 172/09.1 165/09.3 176/09.2 180/08.4 172/08.3 183/08.3 189/13.6 183/15.8 180/07.6 183/15.8 202/02.2
5 ------068/01.4 104/01.6 134/01.3 ---------------------183/16.2 134/01.3
6 285/03.8 018/03.4 120/03.9 116/02.8 126/01.6 154/01.4 187/03.5 231/02.8 217/03.5 231/02.9 244/03.0 159/02.7 120/03.9 109/01.4
7 305/06.3 300/03.8 328/05.2 322/06.8 314/06.6 319/07.2 324/08.0 331/07.6 332/06.9 331/07.8 329/07.2 314/06.4 314/09.7 327/02.4
8 334/04.6 334/05.8 360/07.0 355/06.6 349/05.7 359/05.3 354/05.2 347/05.8 004/05.1 012/03.3 330/02.6 350/04.1 360/07.0 051/01.5
9 350/07.5 355/08.7 155/06.9 253/03.0 322/03.4 332/03.0 353/04.3 355/05.9 341/03.9 241/02.3 246/02.2 336/04.3 355/08.7 246/02.2
10 030/04.0 009/06.9 028/07.8 016/04.6 025/01.7 149/02.2 193/03.9 224/03.7 225/03.7 226/03.9 232/03.2 349/03.5 028/07.8 025/01.7
11 016/04.5 339/05.9 322/05.9 356/07.5 354/06.7 018/06.1 225/04.6 287/03.5 199/04.3 196/07.7 188/08.3 325/04.6 188/08.3 330/01.8
12 028/03.8 022/04.7 318/04.8 303/05.2 306/04.9 309/02.1 287/01.8 256/02.4 263/02.8 303/02.6 283/02.4 298/02.9 197/06.5 248/00.8
13 157/03.0 023/03.0 068/03.4 015/06.8 005/05.8 199/03.6 167/02.8 315/09.5 011/03.2 258/03.2 288/02.2 203/04.0 315/09.5 181/01.6
14 329/08.5 321/07.4 320/05.2 329/04.6 360/08.0 357/08.0 358/06.2 347/06.9 337/05.7 320/05.4 336/04.5 323/04.7 329/08.5 269/01.5
15 016/05.3 022/05.6 023/05.8 014/06.4 359/05.8 351/05.2 292/02.1 288/01.9 294/02.4 292/02.7 279/02.4 338/03.5 014/06.4 164/01.2
16 063/03.5 023/03.6 024/03.6 355/04.5 325/05.7 307/03.6 238/04.1 209/02.8 230/02.9 221/04.8 222/04.9 333/03.0 325/05.7 031/00.8
17 330/07.7 344/05.8 341/05.8 341/05.9 354/06.5 345/06.4 337/07.1 345/08.6 357/07.1 001/03.8 353/04.3 289/05.6 345/08.6 235/03.7
18 097/02.7 075/03.3 041/02.7 046/02.5 352/02.8 191/03.6 185/05.1 192/08.4 197/05.8 186/06.2 199/08.2 107/03.9 350/08.6 356/01.1
19 034/06.7 016/06.7 019/07.0 003/07.9 360/07.1 352/06.8 320/03.9 321/06.1 356/04.3 005/03.6 305/03.0 329/05.4 326/08.7 236/02.3
20 174/05.0 294/03.5 055/03.5 052/01.9 340/06.6 311/08.4 307/07.9 315/05.8 322/03.9 329/03.6 314/04.7 311/04.3 311/08.4 268/01.4
21 322/04.3 024/05.7 040/05.3 002/06.0 338/05.8 014/04.6 256/02.2 223/04.9 224/05.9 217/06.3 198/08.1 324/04.2 198/08.1 094/01.8
22 231/05.2 213/05.2 236/05.3 218/05.2 210/04.1 206/04.3 214/04.7 235/04.5 293/10.8 320/10.6 346/09.6 208/07.1 293/10.8 203/04.1
23 345/05.9 332/08.0 339/08.0 351/07.8 006/06.8 004/05.9 003/03.6 314/02.4 286/01.9 258/02.4 252/02.6 333/05.8 349/08.2 286/01.9
24 160/08.6 174/06.6 170/09.3 198/09.0 215/08.4 194/07.7 201/07.8 184/05.9 185/06.8 183/03.2 189/05.6 189/05.6 170/09.3 176/01.6
25 048/02.5 037/02.1 025/02.3 341/05.3 036/03.3 237/02.5 311/01.4 229/03.2 224/05.2 219/06.0 214/06.3 205/05.6 181/09.6 311/01.4
26 044/02.6 077/02.6 068/02.9 051/02.5 050/02.5 001/01.9 274/02.3 231/04.3 227/04.6 230/03.6 230/03.9 179/03.6 216/05.9 001/01.9
27 034/03.8 018/03.6 016/03.6 021/04.2 012/03.6 358/02.8 242/02.7 228/04.1 235/03.6 230/03.5 217/03.2 317/02.9 021/04.2 216/01.4
28 211/07.6 350/04.5 055/02.1 046/02.3 161/01.3 189/03.5 202/06.5 191/05.5 207/06.2 194/07.8 196/08.0 183/04.0 196/08.0 161/01.3
29 305/08.7 312/07.5 310/06.9 349/08.6 355/07.3 357/08.2 359/08.1 356/07.0 353/08.2 348/09.8 351/08.5 292/07.1 348/09.8 105/03.7
30 027/04.1 021/03.8 039/03.9 013/04.5 360/06.3 007/04.7 317/02.7 229/04.0 227/02.9 262/01.5 240/03.0 356/04.5 348/08.4 262/01.5
31 041/03.2 049/03.1 064/03.2 024/03.4 011/03.9 004/03.0 283/02.3 256/02.0 233/03.7 244/02.4 232/02.3 351/02.6 011/03.9 052/01.0
MEAN 007/05.3 006/05.3 022/05.1 008/05.3 358/05.2 334/04.8 271/04.5 263/05.0 262/04.9 256/04.9 259/05.1 300/04.7
MAX 305/08.7 164/08.9 170/09.3 172/09.1 165/09.3 176/09.2 180/08.4 315/09.5 293/10.8 189/13.6 183/15.8 183/16.2
MIN 048/02.5 037/02.1 068/01.4 104/01.6 161/01.3 154/01.4 311/01.4 288/01.9 286/01.9 262/01.5 288/02.2 031/00.8
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =730 DATA RECOVERY RATE = 98.1%
MONTHLY MEAN = 300/04.7 MAXIMUM WIND SPEED =16.2 AT 183 DEGREES DATE OF OCCURRENCE = 5/5 AT 100
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country Page 1
Wind Speed and Direction in mps for June, 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
1 232/02.4 222/03.4 226/04.0 228/03.3 229/02.7 235/01.7 149/01.3 105/01.1 051/02.5 109/02.0 101/03.9 161/06.1 159/07.0
2 240/03.3 287/02.8 286/01.3 282/02.0 263/02.8 224/03.0 230/03.6 225/02.3 005/04.7 017/03.8 024/05.7 027/05.1 023/03.8
3 298/03.5 304/05.9 303/07.9 295/06.3 291/04.6 289/05.8 278/02.7 246/01.4 096/01.5 115/02.3 085/02.4 191/04.0 280/06.1
4 342/02.2 346/04.6 332/04.0 341/05.3 340/04.8 356/05.9 006/04.9 342/06.5 319/09.1 329/07.2 334/06.1 334/05.9 342/06.7
5 214/04.8 213/05.2 210/05.0 223/03.4 228/04.7 206/03.4 198/01.6 074/01.6 022/02.4 054/02.3 042/03.9 060/03.2 029/03.6
6 256/02.7 253/02.6 279/02.3 247/01.4 275/02.1 238/01.2 085/00.8 081/01.3 091/01.9 091/02.5 092/02.9 078/03.1 067/03.5
7 333/03.1 343/05.3 350/06.4 237/02.4 318/02.9 308/03.2 345/02.2 152/01.7 032/03.3 079/03.5 050/03.4 047/03.7 027/05.4
8 228/04.0 231/03.4 228/04.9 196/02.0 226/03.3 251/02.3 280/01.1 013/01.5 039/01.9 083/02.5 068/03.1 078/03.7 081/03.2
9 245/02.7 223/02.9 267/01.4 007/01.9 259/01.7 221/02.3 193/03.0 164/03.0 152/03.9 148/03.8 154/05.1 131/05.4 158/06.0
10 225/04.4 230/04.0 231/02.7 236/02.7 162/02.2 185/02.8 172/01.9 129/02.1 086/02.8 077/02.7 051/02.9 046/03.3 044/03.6
11 267/02.6 236/02.1 215/02.9 226/04.4 228/04.1 219/03.2 177/00.8 075/01.8 088/02.4 071/03.1 062/03.3 072/03.6 110/03.4
12 224/05.4 225/05.4 222/05.3 216/05.0 225/05.6 225/05.2 188/03.0 340/01.7 164/04.3 ------172/06.3 159/06.0
13 231/02.0 228/03.7 235/03.5 225/03.4 224/04.1 230/03.7 134/02.2 148/04.3 162/05.6 164/06.6 161/05.7 162/06.3 149/07.0
14 175/09.8 165/05.6 186/10.4 184/08.4 183/06.1 196/05.4 188/06.0 176/07.0 177/08.9 169/08.8 174/08.5 161/07.1 145/07.5
15 215/05.4 198/03.9 206/05.7 256/03.5 346/03.6 219/01.5 140/01.7 044/02.7 003/03.7 033/03.1 041/02.8 066/03.5 048/03.5
16 082/01.7 156/02.4 167/02.6 333/01.5 123/02.0 164/02.1 142/01.8 095/01.7 018/01.9 044/02.5 046/03.2 050/03.3 046/03.6
17 198/01.3 218/02.2 218/03.3 226/02.9 215/01.9 242/01.8 088/01.1 127/02.3 012/03.4 038/04.4 064/05.0 028/05.7 332/06.5
18 353/06.9 349/06.5 354/05.2 354/04.5 261/01.6 301/01.5 012/03.0 048/03.6 045/03.6 036/03.0 051/03.1 033/03.4 045/03.6
19 265/02.1 232/01.2 226/01.1 225/01.4 177/01.2 198/01.8 035/01.4 055/01.8 039/02.0 027/02.1 037/02.7 033/03.5 024/03.6
20 216/01.9 236/01.8 283/02.1 229/01.9 223/01.5 228/02.2 024/00.8 022/01.1 028/01.5 044/02.8 035/03.2 058/03.4 056/04.2
21 236/03.7 218/03.6 209/03.9 184/06.0 200/04.4 179/04.5 169/05.6 160/07.3 168/07.6 164/08.1 168/07.4 151/06.9 160/05.0
22 214/05.1 219/05.5 210/03.8 199/03.4 202/04.0 187/02.4 185/03.5 172/05.7 170/07.9 172/08.0 163/07.3 147/06.4 146/04.7
23 180/07.6 175/09.1 175/09.8 177/10.1 182/08.4 190/04.8 082/03.1 172/06.1 165/07.6 162/06.3 156/05.8 145/05.6 144/05.1
24 189/04.1 183/08.7 189/10.8 190/06.3 183/07.8 198/05.8 182/06.4 174/06.7 162/05.1 141/04.7 111/04.2 063/04.4 058/03.3
25 233/04.0 225/01.7 227/03.1 239/02.2 227/02.0 185/01.4 118/01.3 042/01.3 092/02.1 055/02.6 054/03.3 063/04.1 071/03.3
26 258/02.7 244/01.9 203/02.0 199/03.4 332/01.6 166/01.2 254/02.7 193/02.2 139/01.5 105/02.4 104/03.1 102/04.0 149/03.7
27 174/11.8 183/08.4 213/06.4 229/04.0 180/07.1 191/07.3 192/06.0 181/08.9 171/08.6 162/07.3 169/06.9 157/06.2 170/07.6
28 269/02.7 308/02.8 214/01.5 078/01.5 163/01.5 176/01.8 022/02.2 010/03.9 026/03.3 025/03.3 052/03.5 024/03.9 031/04.3
29 236/01.6 213/03.2 222/03.8 227/02.3 119/00.9 165/01.9 154/03.6 146/04.6 167/07.4 169/08.8 158/07.1 152/07.6 159/06.9
30 173/07.8 178/07.1 174/07.4 178/08.0 178/08.3 185/08.2 175/07.7 174/06.9 159/05.8 173/07.0 182/10.5 179/10.2 182/09.5
MEAN 232/04.1 228/04.2 228/04.5 229/03.8 220/03.6 213/03.3 159/02.9 120/03.5 091/04.3 093/04.4 088/04.7 092/05.0 090/05.0
MAX 174/11.8 175/09.1 189/10.8 177/10.1 182/08.4 185/08.2 175/07.7 181/08.9 319/09.1 169/08.8 182/10.5 179/10.2 182/09.5
MIN 198/01.3 232/01.2 226/01.1 225/01.4 119/00.9 238/01.2 024/00.8 105/01.1 096/01.5 109/02.0 085/02.4 078/03.1 081/03.2
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country Page 2
Wind Speed and Direction in mps for June, 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
1 358/04.9 038/03.1 019/05.2 354/07.8 358/07.3 354/06.3 318/03.6 304/03.3 236/02.1 231/03.8 233/03.1 241/03.8 354/07.8 105/01.1
2 074/03.2 108/03.2 073/02.7 037/01.8 081/01.8 027/01.8 278/01.9 258/01.8 233/03.1 224/03.3 245/02.4 303/03.0 024/05.7 286/01.3
3 196/02.9 243/04.6 289/03.9 159/01.9 164/01.6 170/02.2 193/03.0 199/04.1 214/03.7 231/01.9 177/01.8 230/03.6 303/07.9 246/01.4
4 004/05.5 011/04.2 077/03.8 046/03.7 025/04.1 006/02.5 283/01.8 242/02.8 226/03.3 225/04.2 226/04.0 338/04.7 319/09.1 283/01.8
5 033/03.7 344/03.9 341/04.2 353/05.6 009/07.0 004/05.4 341/02.0 244/03.2 232/04.1 242/03.6 252/03.0 311/03.8 009/07.0 074/01.6
6 041/03.1 057/03.1 040/04.0 029/03.6 049/02.2 345/02.3 264/02.1 230/03.1 284/02.7 325/03.0 328/03.7 005/02.5 040/04.0 085/00.8
7 016/05.2 014/06.1 007/04.6 359/03.8 293/08.7 283/08.3 248/03.5 256/08.3 249/03.3 245/03.3 223/04.7 331/04.4 293/08.7 152/01.7
8 106/03.7 122/02.7 007/02.6 037/02.0 352/01.9 335/01.4 262/01.7 237/03.3 229/04.4 225/04.2 226/04.1 248/02.9 228/04.9 280/01.1
9 146/05.1 136/04.0 124/03.7 153/07.7 161/08.6 187/06.0 191/06.7 194/07.5 273/05.6 239/04.7 217/03.2 186/04.4 161/08.6 267/01.4
10 020/04.6 019/04.5 014/06.1 004/06.4 009/06.1 015/05.6 341/02.7 329/02.3 271/02.0 255/02.5 234/04.1 360/03.5 004/06.4 172/01.9
11 355/03.7 004/04.5 014/03.9 018/04.7 009/04.7 005/04.2 276/02.4 243/02.9 239/03.5 229/05.0 227/04.8 275/03.4 229/05.0 177/00.8
12 159/05.1 148/04.4 156/03.0 212/02.0 027/03.7 353/05.5 315/02.9 288/02.5 261/02.2 281/03.0 302/02.3 224/04.1 172/06.3 340/01.7
13 151/05.7 152/05.6 166/05.9 186/06.1 189/04.8 214/04.2 223/05.9 215/07.4 204/08.2 210/09.8 192/09.4 190/05.5 210/09.8 231/02.0
14 147/07.0 150/06.2 161/04.0 191/03.4 166/03.2 224/02.6 222/04.7 221/05.2 220/05.0 196/04.3 205/05.2 182/06.3 186/10.4 224/02.6
15 037/04.4 055/04.4 029/03.4 016/03.6 008/04.2 352/07.0 343/06.4 317/03.3 314/05.6 311/06.9 323/05.0 001/04.1 352/07.0 219/01.5
16 042/03.4 056/03.5 030/03.9 003/04.0 031/04.3 358/02.4 229/03.3 218/02.0 224/01.5 238/02.2 233/03.3 070/02.7 031/04.3 333/01.5
17 312/10.1 320/11.7 315/14.7 313/15.5 318/14.3 347/11.1 358/08.6 352/08.5 354/06.4 354/06.5 359/05.6 333/06.4 313/15.5 088/01.1
18 067/03.7 075/03.3 055/03.3 011/03.1 009/04.4 015/04.8 022/04.1 330/01.8 269/01.9 264/02.1 266/02.1 008/03.5 353/06.9 301/01.5
19 001/03.9 014/04.0 026/04.3 009/04.5 011/04.7 017/03.8 358/02.5 293/02.2 273/02.0 244/02.6 216/02.0 348/02.6 011/04.7 226/01.1
20 034/05.0 010/04.2 002/04.3 358/05.3 007/07.0 345/06.3 312/03.5 315/02.3 301/02.8 275/02.6 251/02.7 337/03.1 007/07.0 024/00.8
21 042/04.8 047/02.5 073/02.6 017/04.1 003/04.7 001/05.3 310/02.7 235/03.7 227/04.4 224/04.7 221/04.4 188/04.9 164/08.1 047/02.5
22 156/02.5 353/04.1 011/03.2 063/02.8 035/02.8 342/01.9 228/03.8 225/05.0 224/05.4 218/06.0 196/06.6 190/04.7 172/08.0 342/01.9
23 219/03.6 141/04.5 169/03.2 302/03.0 010/03.9 001/04.3 258/02.7 228/04.6 219/05.2 210/06.5 183/07.4 180/05.8 177/10.1 258/02.7
24 027/04.3 030/04.8 010/04.3 001/06.1 005/05.3 356/04.8 302/02.3 244/03.5 227/04.6 236/03.9 230/04.4 181/05.3 189/10.8 302/02.3
25 036/03.5 015/04.7 009/06.0 010/06.1 360/06.3 354/05.7 310/02.8 274/03.0 264/02.9 246/03.4 257/02.8 338/03.3 360/06.3 042/01.3
26 019/04.6 071/03.7 152/03.1 170/06.2 209/07.1 231/05.1 233/04.3 188/05.7 177/09.6 209/07.0 194/06.7 184/04.0 177/09.6 166/01.2
27 164/05.5 254/04.7 304/06.5 328/05.8 342/05.9 355/05.2 353/04.7 350/07.9 338/06.1 322/05.0 173/01.8 208/06.5 174/11.8 173/01.8
28 049/04.6 046/04.9 012/04.5 004/04.4 009/04.1 359/03.7 288/02.5 225/02.8 239/03.2 229/02.4 235/02.3 359/03.1 046/04.9 163/01.5
29 190/06.6 203/07.0 200/05.4 183/06.1 210/04.7 206/03.7 218/04.8 220/05.7 214/05.4 197/05.3 178/07.2 188/05.1 169/08.8 119/00.9
30 202/07.8 199/06.8 222/05.5 208/05.7 203/05.7 188/05.6 197/05.6 201/06.0 212/06.2 218/06.2 306/05.2 191/07.1 182/10.5 306/05.2
MEAN 058/04.7 052/04.6 031/04.5 010/04.9 010/05.2 345/04.6 281/03.6 252/04.2 245/04.2 241/04.3 232/04.2 221/04.3
MAX 312/10.1 320/11.7 315/14.7 313/15.5 318/14.3 347/11.1 358/08.6 352/08.5 177/09.6 210/09.8 192/09.4 313/15.5
MIN 156/02.5 047/02.5 007/02.6 037/01.8 164/01.6 335/01.4 262/01.7 330/01.8 224/01.5 231/01.9 177/01.8 024/00.8
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =718 DATA RECOVERY RATE = 99.7%
MONTHLY MEAN = 221/04.3 MAXIMUM WIND SPEED =15.5 AT 313 DEGREES DATE OF OCCURRENCE = 6/17 AT 1700
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for April, 2024
Percentage frequency of occurence of hourly wind velocities for all stability classes
OVER 1.54 -3.09 -5.14 -8.23 -OVER AVG
0.5 3.09 5.14 8.23 10.8 10.8 SPEED
N 348.75 - 11.25 1.0 1.1 2.4 2.6 0.0 0.0 7.1 4.2
NNE 11.25 - 33.75 0.7 4.9 3.3 1.1 0.0 0.0 10.0 3.1
NE 33.75 - 56.25 0.7 4.6 1.2 0.0 0.0 0.0 6.5 2.5
ENE 56.25 - 78.75 0.3 1.7 0.6 0.0 0.0 0.0 2.5 2.6
E 78.75 - 101.25 0.1 1.0 0.3 0.0 0.0 0.0 1.4 2.4
ESE 101.25 - 123.75 0.0 1.0 0.0 0.0 0.0 0.0 1.0 2.3
SE 123.75 - 146.25 0.6 0.1 0.6 0.3 0.0 0.0 1.5 3.2
SSE 146.25 - 168.75 0.7 1.2 0.4 4.9 0.4 0.0 7.6 5.4
S 168.75 - 191.25 0.6 1.1 1.7 6.8 1.7 1.2 13.1 6.7
SSW 191.25 - 213.75 0.4 2.4 3.2 2.8 1.0 0.4 10.1 5.0
SW 213.75 - 236.25 0.1 3.5 6.2 1.0 0.0 0.1 11.0 3.6
WSW 236.25 - 258.75 0.4 2.8 1.0 0.3 0.0 0.0 4.4 2.8
W 258.75 - 281.25 0.7 2.2 0.1 0.3 0.0 0.0 3.3 2.4
WNW 281.25 - 303.75 0.3 2.4 1.0 1.1 0.6 0.0 5.3 4.3
NW 303.75 - 326.25 0.1 1.2 4.2 3.2 0.3 0.0 9.0 4.8
NNW 326.25 - 348.75 1.2 0.6 1.8 2.2 0.3 0.0 6.1 4.4
0.0
7.9 31.7 27.9 26.5 4.2 1.8 100.0 4.3
TOTAL NUMBER OF OBSERVATIONS =720
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =100.0%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for May, 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 1.2 2.7 6.7 0.7 0.0 11.5 5.7
NNE 11.25 - 33.75 0.1 1.9 4.4 2.2 0.0 0.0 8.6 4.2
NE 33.75 - 56.25 0.4 2.7 1.8 0.4 0.0 0.0 5.3 3.0
ENE 56.25 - 78.75 0.4 2.2 1.1 0.0 0.0 0.0 3.7 2.7
E 78.75 - 101.25 0.1 1.5 0.1 0.0 0.0 0.0 1.8 2.3
ESE 101.25 - 123.75 0.1 0.7 0.3 0.0 0.0 0.0 1.1 2.6
SE 123.75 - 146.25 0.3 0.4 0.4 0.3 0.0 0.0 1.4 3.5
SSE 146.25 - 168.75 0.5 0.8 1.1 1.9 1.1 0.0 5.5 5.4
S 168.75 - 191.25 0.1 1.2 1.2 3.3 2.6 1.0 9.5 7.1
SSW 191.25 - 213.75 0.1 1.2 2.3 3.0 0.8 0.5 8.1 5.9
SW 213.75 - 236.25 0.1 2.9 6.6 1.6 0.1 0.0 11.4 3.8
WSW 236.25 - 258.75 0.3 3.6 1.1 0.0 0.0 0.0 4.9 2.6
W 258.75 - 281.25 0.5 1.8 0.1 0.0 0.0 0.0 2.5 2.2
WNW 281.25 - 303.75 0.0 1.9 0.8 0.8 0.1 0.0 3.7 3.8
NW 303.75 - 326.25 0.3 1.9 1.9 4.4 1.0 0.0 9.5 5.3
NNW 326.25 - 348.75 0.0 1.2 2.7 6.8 0.8 0.0 11.6 5.6
0.0
3.7 27.3 28.8 31.5 7.3 1.5 100.0 4.7
TOTAL NUMBER OF OBSERVATIONS =730
POSSIBLE NUMBER OF OBSERVATIONS =744
DATA RECOVERY =98.1%

Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott Hi-Country
Joint Frequency Distribution for June, 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 0.0 0.8 4.6 4.0 0.3 0.0 9.7 5.0
NNE 11.25 - 33.75 0.6 0.8 5.2 1.1 0.0 0.0 7.7 3.8
NE 33.75 - 56.25 0.3 2.8 4.0 0.0 0.0 0.0 7.1 3.2
ENE 56.25 - 78.75 0.1 1.0 2.9 0.0 0.0 0.0 4.0 3.2
E 78.75 - 101.25 0.6 1.7 0.4 0.0 0.0 0.0 2.6 2.3
ESE 101.25 - 123.75 0.4 0.7 1.0 0.0 0.0 0.0 2.1 2.7
SE 123.75 - 146.25 0.1 0.7 0.7 0.4 0.0 0.0 1.9 3.8
SSE 146.25 - 168.75 0.4 1.7 2.1 5.2 0.1 0.0 9.5 5.1
S 168.75 - 191.25 0.4 1.1 1.0 4.7 2.9 0.1 10.3 6.6
SSW 191.25 - 213.75 0.1 1.3 2.2 3.6 0.3 0.0 7.5 5.0
SW 213.75 - 236.25 1.0 4.5 8.8 2.5 0.0 0.0 16.7 3.6
WSW 236.25 - 258.75 0.4 3.1 2.1 0.0 0.1 0.0 5.7 2.9
W 258.75 - 281.25 0.3 3.1 0.0 0.3 0.0 0.0 3.6 2.5
WNW 281.25 - 303.75 0.3 1.7 0.4 0.4 0.3 0.0 3.1 3.7
NW 303.75 - 326.25 0.0 1.0 1.0 0.7 0.3 0.6 3.5 6.1
NNW 326.25 - 348.75 0.3 1.4 1.1 1.9 0.0 0.1 4.9 4.4
0.0
5.3 27.2 37.5 24.9 4.3 0.8 100.0 4.3
TOTAL NUMBER OF OBSERVATIONS =718
POSSIBLE NUMBER OF OBSERVATIONS =720
DATA RECOVERY =99.7%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott HiCountry
Joint Frequency Distribution for April - June 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 1.1 3.2 4.5 0.3 0.0 9.5 5.1
NNE 11.25 - 33.75 0.5 2.5 4.3 1.5 0.0 0.0 8.8 3.7
NE 33.75 - 56.25 0.5 3.4 2.4 0.1 0.0 0.0 6.3 2.9
ENE 56.25 - 78.75 0.3 1.6 1.5 0.0 0.0 0.0 3.4 2.9
E 78.75 - 101.25 0.3 1.4 0.3 0.0 0.0 0.0 1.9 2.3
ESE 101.25 - 123.75 0.2 0.8 0.4 0.0 0.0 0.0 1.4 2.5
SE 123.75 - 146.25 0.3 0.4 0.6 0.3 0.0 0.0 1.6 3.5
SSE 146.25 - 168.75 0.6 1.2 1.2 4.0 0.6 0.0 7.5 5.3
S 168.75 - 191.25 0.4 1.2 1.3 4.9 2.4 0.8 10.9 6.8
SSW 191.25 - 213.75 0.2 1.6 2.6 3.1 0.7 0.3 8.6 5.3
SW 213.75 - 236.25 0.4 3.6 7.2 1.7 0.0 0.0 13.0 3.7
WSW 236.25 - 258.75 0.4 3.1 1.4 0.1 0.0 0.0 5.0 2.8
W 258.75 - 281.25 0.5 2.4 0.1 0.2 0.0 0.0 3.1 2.4
WNW 281.25 - 303.75 0.2 2.0 0.7 0.8 0.3 0.0 4.0 4.0
NW 303.75 - 326.25 0.1 1.4 2.4 2.8 0.5 0.2 7.3 5.2
NNW 326.25 - 348.75 0.5 1.1 1.9 3.7 0.4 0.0 7.6 5.0
0.0
5.6 28.7 31.4 27.7 5.3 1.4 100.0 4.4
TOTAL NUMBER OF OBSERVATIONS =2168
POSSIBLE NUMBER OF OBSERVATIONS =2184
DATA RECOVERY =99.3%
Wind Speed (mps)
TOTALWind Direction
CALM
TOTAL
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for APRIL, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 2.7 1.7 1.3 3.8 3.3 2.4 4.9 4.6 3.4 3.9 6.9 13.1 9.3 11.2 13.7 13.5 12.8 12.2 11.2 9.2 10.4 10.9 8.3 10.1 7.7 13.7 1.3
2 7.6 6.6 5.4 4.1 4.3 3.4 4.0 3.9 3.7 4.3 4.7 5.5 6.0 7.9 6.9 7.1 7.2 5.5 4.4 4.1 4.3 4.3 3.9 5.2 5.2 7.9 3.4
3 5.2 4.5 5.5 5.3 5.1 5.9 9.3 9.0 7.8 7.7 8.5 9.1 9.2 11.2 12.7 10.2 10.5 7.7 7.1 6.6 5.9 9.5 9.2 15.5 8.3 15.5 4.5
4 15.6 19.4 18.5 18.9 17.4 13.7 10.4 11.0 18.1 21.1 21.1 20.1 17.7 18.5 25.6 21.9 22.2 22.5 19.2 17.7 19.4 20.3 24.7 21.2 19.0 25.6 10.4
5 15.9 12.7 11.2 12.1 10.9 13.7 9.0 11.5 20.8 22.9 15.9 24.2 24.1 19.5 19.8 18.3 15.7 13.9 12.5 12.2 4.9 2.3 7.1 9.2 14.2 24.2 2.3
6 8.4 7.3 15.5 15.1 16.0 14.3 11.4 13.1 12.0 9.2 12.7 14.6 8.4 10.9 16.5 12.3 17.3 14.8 14.9 15.4 13.5 14.7 12.1 10.2 12.9 17.3 7.3
7 11.8 11.7 11.2 6.5 4.7 5.2 5.0 4.4 6.6 8.0 7.5 8.8 9.1 8.7 7.7 7.6 3.7 5.7 3.2 3.3 3.5 5.3 6.3 5.4 6.7 11.8 3.2
8 5.3 6.4 3.8 6.3 5.1 3.2 3.8 7.1 9.7 10.3 11.4 9.5 9.5 11.2 11.3 10.8 10.5 8.9 6.7 8.2 6.2 6.1 4.5 4.9 7.5 11.4 3.2
9 4.1 4.1 3.8 3.5 3.0 3.3 4.1 3.3 5.3 7.7 6.8 6.3 8.7 10.6 9.8 11.3 8.4 7.1 4.6 3.1 4.5 5.3 5.3 5.3 5.8 11.3 3.0
10 7.2 6.6 8.1 8.9 9.4 8.7 8.1 6.0 3.9 8.1 8.2 10.1 8.5 9.7 11.8 9.4 10.7 10.6 9.7 3.7 5.2 5.1 6.3 5.2 7.9 11.8 3.7
11 4.6 4.4 5.4 5.3 5.5 5.9 6.5 3.2 9.0 9.7 9.9 9.7 8.0 10.2 10.7 12.2 10.6 8.1 5.8 5.8 7.2 7.0 7.2 6.1 7.4 12.2 3.2
12 5.8 8.7 8.9 10.0 12.0 12.6 13.3 11.7 12.2 11.5 11.2 12.1 16.2 15.3 15.9 14.6 15.1 14.4 11.0 12.5 11.9 12.9 9.6 7.8 12.0 16.2 5.8
13 8.7 8.9 7.6 10.3 10.4 10.3 12.0 10.9 10.9 10.5 12.5 15.6 13.8 13.5 13.8 15.4 12.5 10.1 9.1 6.4 6.3 7.7 10.9 12.8 10.9 15.6 6.3
14 10.9 12.2 8.8 8.5 8.6 8.1 7.2 10.8 13.7 14.1 15.2 16.5 14.7 14.4 12.7 11.4 11.1 8.9 7.8 6.7 11.0 9.9 11.1 10.0 11.0 16.5 6.7
15 12.0 12.1 9.0 4.3 1.3 3.6 1.6 4.0 8.2 5.1 4.3 8.7 10.2 12.5 10.5 8.6 5.3 2.7 3.9 2.3 2.8 3.9 8.6 18.3 6.8 18.3 1.3
16 18.9 14.7 13.4 12.3 12.1 11.7 11.8 10.6 5.1 6.4 9.7 10.5 7.9 8.2 5.7 5.3 6.2 6.0 3.3 3.9 4.7 5.7 7.4 8.6 8.8 18.9 3.3
17 7.8 6.0 6.4 4.2 5.2 4.6 4.6 4.7 5.3 9.8 9.4 10.2 10.4 9.5 9.8 9.0 10.4 9.8 10.8 8.1 14.3 12.7 6.9 7.3 8.2 14.3 4.2
18 7.3 5.9 3.3 2.6 2.8 3.0 2.6 3.9 4.9 5.8 6.7 6.8 6.5 11.1 6.4 6.4 6.2 5.1 4.7 3.6 3.1 4.0 2.9 4.7 5.0 11.1 2.6
19 3.6 2.7 3.3 3.1 3.5 3.4 3.0 2.4 3.9 3.5 5.7 6.3 8.1 8.9 8.6 8.9 6.4 5.7 5.9 4.0 3.5 4.3 4.8 4.6 4.9 8.9 2.4
20 4.0 2.1 4.7 4.9 4.0 5.3 4.9 2.9 4.2 5.7 6.5 7.3 9.9 12.1 13.6 13.1 10.0 8.2 5.4 3.9 4.9 5.7 5.3 4.6 6.4 13.6 2.1
21 4.9 5.3 5.5 6.1 6.7 4.8 4.2 7.9 10.5 11.4 12.3 13.0 13.0 11.5 10.5 11.8 7.9 7.7 5.5 7.0 7.2 6.3 10.3 5.8 8.2 13.0 4.2
22 5.0 3.8 2.6 5.0 4.1 7.5 7.6 5.6 3.6 4.4 5.8 7.5 7.3 6.4 6.4 5.9 7.1 5.7 2.7 4.8 5.9 6.8 4.2 4.1 5.4 7.6 2.6
23 4.4 4.0 3.1 4.8 5.1 4.7 3.8 6.0 3.7 5.5 6.9 8.3 7.5 7.7 8.3 8.6 8.0 7.0 4.5 3.1 3.6 4.3 4.8 5.5 5.5 8.6 3.1
24 3.7 4.9 5.8 5.8 6.6 10.1 10.1 9.5 11.8 11.5 12.9 15.8 14.4 13.1 11.7 12.9 13.9 11.5 10.0 6.6 6.9 8.6 14.7 11.5 10.2 15.8 3.7
25 4.9 6.6 9.6 8.9 3.5 2.8 3.4 5.3 6.3 5.2 9.6 9.2 13.9 5.1 4.1 6.2 12.7 14.6 7.7 9.7 5.6 3.6 4.6 2.9 6.9 14.6 2.8
26 1.7 3.9 5.1 4.7 3.6 3.6 2.0 3.5 5.0 7.8 5.4 4.2 3.2 2.7 3.9 6.7 5.7 4.5 4.2 3.9 2.0 1.5 3.1 3.5 4.0 7.8 1.5
27 2.9 2.2 3.2 2.1 3.2 3.4 5.4 5.1 3.5 9.9 13.4 13.4 14.7 15.1 14.0 12.3 10.6 11.5 8.8 6.0 2.7 1.9 2.8 2.5 7.1 15.1 1.9
28 11.1 12.6 2.6 4.8 3.4 5.0 5.5 2.4 2.0 6.1 7.0 7.4 7.9 9.9 11.7 10.5 8.9 8.0 4.1 4.9 6.1 6.9 8.8 7.9 6.9 12.6 2.0
29 10.3 9.8 7.6 6.9 9.5 10.2 7.5 6.3 10.4 12.1 11.1 11.1 9.9 10.7 13.5 13.2 14.3 7.9 17.2 16.7 20.0 18.8 16.5 11.9 11.8 20.0 6.3
30 10.9 12.2 11.9 9.1 5.9 6.9 4.9 3.7 4.8 5.9 6.8 7.2 7.5 8.2 9.0 5.9 6.6 4.9 4.4 5.9 6.1 6.9 4.9 4.6 6.9 12.2 3.7
MEAN 7.6 7.5 7.1 6.9 6.5 6.7 6.4 6.5 7.7 8.8 9.5 10.7 10.5 10.8 11.2 10.7 10.3 9.0 7.7 7.0 7.1 7.4 7.9 7.9 8.3
MAX 18.9 19.4 18.5 18.9 17.4 14.3 13.3 13.1 20.8 22.9 21.1 24.2 24.1 19.5 25.6 21.9 22.2 22.5 19.2 17.7 20.0 20.3 24.7 21.2 25.6
MIN 1.7 1.7 1.3 2.1 1.3 2.4 1.6 2.4 2.0 3.5 4.3 4.2 3.2 2.7 3.9 5.3 3.7 2.7 2.7 2.3 2.0 1.5 2.8 2.5 1.3
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =8.3 mps
MAXIMUM WIND GUST =25.6 mps DATE OF OCCURRENCE =4/4 AT 1500 MAXIMUM DAILY MEAN =19.0 mps DATE OF OCCURRENCE =4/4
MINIMUM WIND GUST =1.3 mps DATE OF OCCURRENCE =4/15 AT 0500 MINUMUM DAILY MEAN =4.0 mps DATE OF OCCURRENCE =4/26
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for MAY, 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 6.9 8.1 9.7 10.3 8.6 9.1 10.7 12.1 12.1 12.3 11.4 11.2 11.1 14.1 13.5 11.1 9.3 10.7 10.3 9.9 8.2 11.7 12.1 11.0 10.6 14.1 6.9
2 9.1 6.8 3.7 4.3 4.6 4.7 4.7 8.3 10.1 10.8 13.2 13.5 12.7 13.7 12.7 9.4 12.1 9.3 7.3 5.8 7.6 5.6 7.1 10.9 8.7 13.7 3.7
3 14.9 12.4 13.7 14.3 11.5 11.5 17.9 15.2 12.8 13.6 14.5 12.6 11.8 10.2 13.7 11.8 9.9 9.3 5.5 5.1 4.8 5.8 4.3 6.7 11.0 17.9 4.3
4 6.4 7.0 6.0 5.3 7.3 7.3 7.1 9.5 14.5 16.5 15.9 13.7 14.4 14.9 17.0 14.7 16.4 22.7 16.9 15.8 15.1 23.3 26.5 29.3 14.3 29.3 5.3
5 28.7 28.7 21.5 23.3 24.4 29.6 28.8 26.6 22.5 23.9 10.2 7.0 4.6 ------4.2 3.4 3.6 ---------------------------
6 ------------------7.6 6.0 6.0 5.2 4.1 4.1 7.5 12.7 8.7 7.7 6.1 3.0 2.2 7.0 8.4 7.6 5.6 9.9 6.6 12.7 2.2
7 6.0 6.2 12.5 14.9 10.5 8.6 12.0 18.5 19.7 18.5 17.0 17.9 16.5 16.6 11.8 13.5 20.0 16.7 20.2 15.3 18.7 15.3 16.7 15.2 14.9 20.2 6.0
8 11.9 11.0 10.6 5.1 5.1 4.2 3.5 4.2 5.7 6.4 7.9 6.5 9.5 9.0 10.5 11.3 10.9 10.2 9.2 8.6 9.7 11.4 5.3 5.8 8.1 11.9 3.5
9 7.5 6.2 5.7 6.9 7.2 7.1 4.5 4.9 8.7 10.0 9.3 10.2 11.1 15.3 15.5 17.9 8.9 8.4 8.3 6.9 11.3 6.7 4.9 4.3 8.6 17.9 4.3
10 9.7 8.4 6.7 4.7 4.8 4.5 6.3 5.6 9.1 8.6 6.9 6.2 8.2 10.7 13.8 14.6 10.5 3.9 4.9 5.8 5.8 4.9 5.6 5.1 7.3 14.6 3.9
11 5.2 5.5 5.3 5.9 4.5 4.1 6.7 8.3 7.9 7.7 9.1 12.3 11.3 8.8 10.7 11.3 12.6 11.5 15.0 10.9 6.2 12.3 12.6 13.3 9.1 15.0 4.1
12 12.9 6.8 5.3 3.2 2.4 3.2 2.6 4.1 4.3 5.5 5.9 5.7 7.0 7.1 8.9 9.9 11.6 10.4 6.6 5.9 4.9 4.9 4.5 4.7 6.2 12.9 2.4
13 4.9 4.7 5.4 5.9 4.8 5.1 4.0 5.2 8.4 9.3 8.6 8.8 7.5 8.6 7.6 7.0 18.2 10.8 8.2 5.5 24.0 10.1 8.0 4.7 8.1 24.0 4.0
14 5.2 5.1 5.0 3.8 4.6 5.3 3.7 4.7 4.9 6.2 7.1 11.6 14.2 14.4 13.7 11.1 10.7 14.1 13.7 9.7 9.9 9.0 8.6 9.0 8.6 14.4 3.7
15 4.7 5.7 4.6 5.7 4.3 3.9 2.7 4.3 5.9 8.4 8.0 7.4 10.4 9.9 11.1 9.7 10.4 9.1 8.6 5.7 4.2 4.9 4.9 4.9 6.7 11.1 2.7
16 4.9 3.7 4.3 4.5 3.8 1.7 2.4 3.4 4.5 5.8 5.9 6.7 6.8 8.2 8.2 8.0 8.2 9.0 7.4 6.2 5.4 5.2 7.0 7.4 5.8 9.0 1.7
17 7.0 7.6 7.3 7.5 7.6 8.5 6.8 7.9 10.5 8.5 13.4 16.2 15.0 14.3 13.2 11.7 11.7 12.4 12.1 13.7 14.3 12.4 7.5 10.8 10.7 16.2 6.8
18 12.1 11.7 5.6 4.7 4.2 4.7 3.3 4.1 4.6 4.5 6.2 6.6 6.5 6.4 6.9 6.3 6.2 7.1 7.1 11.1 14.6 9.8 11.3 15.1 7.5 15.1 3.3
19 13.8 13.4 8.5 10.7 11.0 5.7 7.9 8.6 7.8 10.8 14.5 13.0 12.1 11.9 11.2 12.4 12.1 11.4 11.6 8.3 10.7 8.6 7.0 7.1 10.4 14.5 5.7
20 5.9 6.1 6.9 12.2 7.1 5.3 3.0 3.0 2.9 11.5 11.3 13.3 12.2 9.8 9.7 6.6 4.4 15.1 15.3 14.4 10.1 8.4 6.6 12.5 8.9 15.3 2.9
21 6.8 8.3 5.3 8.5 6.9 6.4 6.5 6.5 5.7 4.9 4.8 7.9 9.4 10.4 11.9 9.9 10.6 10.2 10.3 4.5 6.7 8.0 9.7 11.8 8.0 11.9 4.5
22 9.9 10.7 11.3 11.1 10.6 12.8 16.1 16.3 15.4 15.0 13.9 13.3 13.5 13.2 16.1 13.7 14.3 10.5 11.9 15.1 12.7 21.7 20.4 15.8 14.0 21.7 9.9
23 13.5 11.7 10.3 13.5 13.9 12.2 15.1 10.1 13.9 12.1 12.8 16.6 12.6 12.0 13.2 13.7 14.3 12.4 9.9 6.1 5.8 3.9 4.5 4.5 11.2 16.6 3.9
24 5.6 5.3 5.7 6.3 7.4 3.4 4.5 7.5 8.6 11.1 10.7 11.1 12.8 14.8 13.2 15.2 19.4 17.4 14.3 13.3 11.5 11.5 5.5 9.7 10.2 19.4 3.4
25 8.1 10.8 14.5 14.4 13.6 13.9 15.0 11.1 11.0 13.0 12.4 19.9 16.6 5.9 4.8 7.9 11.8 9.8 5.2 4.5 5.8 7.3 8.1 8.8 10.6 19.9 4.5
26 8.2 8.9 8.2 8.6 7.7 6.3 5.0 4.6 5.4 5.6 6.3 6.5 6.3 6.0 5.7 6.6 6.3 5.7 3.9 5.1 5.6 6.3 5.5 5.8 6.3 8.9 3.9
27 4.7 5.4 5.1 4.7 3.5 3.2 2.9 4.3 3.9 5.1 5.1 7.9 7.0 8.0 8.5 7.5 8.7 7.0 5.1 5.0 5.8 5.5 5.5 4.7 5.6 8.7 2.9
28 5.1 6.1 5.3 5.3 5.0 3.6 3.1 3.6 4.7 7.8 8.1 8.7 10.1 23.5 11.0 5.7 4.5 3.2 13.9 11.1 10.3 10.1 13.4 11.5 8.1 23.5 3.1
29 18.4 12.5 14.6 9.6 9.3 11.2 7.8 10.6 11.8 8.4 7.1 11.4 14.4 15.5 13.8 11.9 13.8 13.4 14.6 16.2 11.2 12.9 13.9 14.1 12.4 18.4 7.1
30 12.3 12.6 10.4 11.2 12.1 9.2 10.5 7.6 8.6 8.2 8.1 8.4 8.2 9.0 8.8 8.2 9.4 10.6 9.4 6.5 5.9 5.1 3.5 5.2 8.7 12.6 3.5
31 5.7 4.5 3.8 3.3 3.8 4.1 2.9 3.6 5.2 5.3 5.8 7.7 7.3 7.2 7.0 7.7 6.9 7.5 5.5 5.1 4.7 5.8 4.5 5.3 5.4 7.7 2.9
MEAN 9.2 8.7 8.1 8.3 7.7 7.3 7.6 8.1 8.9 9.7 9.5 10.4 10.6 11.4 11.1 10.3 10.8 10.2 9.8 8.8 9.3 9.2 8.7 9.5 9.3
MAX 28.7 28.7 21.5 23.3 24.4 29.6 28.8 26.6 22.5 23.9 17.0 19.9 16.6 23.5 17.0 17.9 20.0 22.7 20.2 16.2 24.0 23.3 26.5 29.3 29.6
MIN 4.7 3.7 3.7 3.2 2.4 1.7 2.4 3.0 2.9 4.5 4.1 4.1 4.6 5.9 4.8 4.2 3.4 3.0 2.2 4.5 4.2 3.9 3.5 4.3 1.7
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =730 DATA RECOVERY RATE =
MONTHLY MEAN =9.3 mps
MAXIMUM WIND GUST =29.6 mps DATE OF OCCURRENCE =5/5 AT 0600 MAXIMUM DAILY MEAN =14.9 mps DATE OF OCCURRENCE =5/7
MINIMUM WIND GUST =1.7 mps DATE OF OCCURRENCE =5/16 AT 0600 MINUMUM DAILY MEAN =5.4 mps DATE OF OCCURRENCE =5/31
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
98.1%
Rio Tinto Kennecott Hi-Country
WIND GUST in mps for JUNE, 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 4.5 6.0 5.6 5.2 4.7 4.2 2.5 2.7 5.9 4.8 6.9 12.3 12.3 9.5 6.4 10.6 11.7 11.5 9.5 10.5 12.7 4.4 5.9 6.3 7.4 12.7 2.5
2 8.8 5.8 3.8 5.5 6.0 5.4 5.2 4.2 8.5 7.0 11.3 10.4 8.7 7.5 6.7 6.7 4.4 4.5 3.8 4.1 4.0 4.9 4.7 4.7 6.1 11.3 3.8
3 9.1 11.7 15.4 11.2 8.1 10.7 8.1 2.7 3.7 5.7 6.2 15.5 16.7 8.5 14.0 10.2 4.4 3.6 4.7 6.1 7.1 6.1 4.2 3.5 8.2 16.7 2.7
4 7.1 8.6 7.3 9.9 10.3 13.2 10.5 14.2 16.7 17.1 12.9 12.5 11.8 9.6 9.2 8.3 7.4 8.9 5.9 3.6 5.5 5.2 5.9 5.6 9.5 17.1 3.6
5 7.2 8.6 8.6 6.0 6.6 6.2 3.2 3.2 5.9 5.4 7.4 7.7 8.1 9.1 9.6 10.2 12.5 12.5 10.7 5.4 5.4 5.5 5.7 5.2 7.3 12.5 3.2
6 5.3 5.4 4.9 4.0 4.3 2.7 2.0 3.2 4.5 5.7 6.2 7.1 6.9 7.6 7.0 8.7 7.6 5.7 4.6 4.6 5.0 9.7 10.8 10.1 6.0 10.8 2.0
7 9.4 12.8 15.0 4.7 5.6 6.7 6.3 4.5 8.7 6.9 7.5 8.2 10.9 10.6 11.1 8.5 11.6 18.4 20.2 12.1 16.5 10.9 6.7 8.0 10.1 20.2 4.5
8 6.9 5.6 7.2 5.9 6.3 4.7 2.9 3.7 4.0 5.8 6.9 9.6 7.9 7.5 5.9 5.5 5.5 5.0 2.7 5.0 5.3 6.7 5.8 5.8 5.8 9.6 2.7
9 5.2 5.5 4.0 4.3 5.5 4.6 4.8 4.9 7.2 7.9 8.9 10.7 10.7 12.0 7.8 8.4 16.3 17.3 9.7 10.5 13.2 13.0 13.2 6.1 8.8 17.3 4.0
10 6.9 6.1 4.7 6.5 4.7 4.6 3.3 4.8 5.9 6.2 6.2 8.1 8.0 9.3 8.4 10.9 11.3 9.7 8.4 6.9 4.9 4.5 4.8 6.4 6.7 11.3 3.3
11 4.9 3.9 5.1 5.6 5.7 5.9 2.4 4.0 5.3 6.1 6.2 7.5 9.9 7.9 9.3 7.9 8.9 8.5 7.9 4.4 4.9 6.1 7.5 6.1 6.3 9.9 2.4
12 6.9 7.3 7.7 7.3 7.1 6.7 6.8 5.2 9.1 ------10.4 11.1 8.9 9.5 7.5 5.7 9.6 8.9 7.4 6.1 5.7 6.6 4.8 7.6 11.1 4.8
13 3.7 6.1 5.9 5.5 5.7 6.8 3.9 8.6 9.4 11.3 11.7 11.6 11.6 12.8 12.6 11.9 12.1 9.8 8.2 7.9 12.9 14.3 16.9 17.1 9.9 17.1 3.7
14 18.6 13.6 15.8 14.8 11.9 10.5 11.5 13.5 14.2 13.9 13.9 13.2 12.1 12.5 11.2 9.1 7.3 6.9 4.9 6.3 9.3 17.8 6.6 7.4 11.5 18.6 4.9
15 8.6 13.2 9.1 8.7 9.0 3.3 3.8 5.0 6.7 6.5 6.9 7.5 9.1 10.6 10.0 9.2 7.4 8.6 10.6 10.0 7.2 11.3 12.7 10.0 8.5 13.2 3.3
16 3.8 4.9 4.3 3.7 3.7 4.0 2.9 3.5 3.9 5.6 6.3 6.9 7.5 8.8 7.5 7.5 9.3 8.5 5.4 6.0 4.6 3.3 4.3 7.9 5.6 9.3 2.9
17 3.1 3.7 7.5 6.1 4.5 4.1 2.4 4.4 10.3 8.8 11.0 11.0 15.7 18.7 26.7 22.2 25.1 23.7 19.3 14.2 12.4 10.8 11.1 13.5 12.1 26.7 2.4
18 15.5 10.4 8.5 7.2 3.8 3.5 5.9 7.9 8.2 7.5 7.6 7.3 8.0 8.2 7.3 8.0 7.1 8.7 8.2 6.9 5.1 4.4 4.2 4.2 7.2 15.5 3.5
19 4.7 2.4 2.7 2.5 2.8 3.7 3.6 3.2 5.3 4.8 6.1 7.2 8.2 7.4 8.0 8.4 8.4 8.4 6.3 4.8 4.5 4.4 4.7 3.8 5.3 8.4 2.4
20 4.4 4.3 4.3 4.8 3.8 4.1 1.6 2.8 4.2 5.9 6.8 7.1 8.5 10.9 8.9 9.6 12.0 10.8 10.1 7.9 7.5 6.5 4.8 5.0 6.5 12.0 1.6
21 6.0 6.3 8.8 9.3 7.1 8.6 10.1 12.3 14.2 14.7 12.9 14.5 11.2 9.9 8.2 6.3 7.5 8.8 9.0 6.0 5.4 6.5 6.5 6.0 9.0 14.7 5.4
22 7.5 7.8 6.9 5.8 7.0 6.9 9.2 10.4 13.1 12.9 11.4 11.6 10.5 14.4 9.9 7.1 6.9 6.2 4.3 6.5 6.8 6.9 7.9 10.3 8.7 14.4 4.3
23 11.9 13.3 15.1 16.1 13.9 11.4 9.1 12.4 12.5 11.5 10.3 11.6 10.7 10.3 11.5 7.0 7.3 7.2 7.7 6.1 6.7 7.3 9.2 12.4 10.5 16.1 6.1
24 10.0 17.1 17.1 11.5 11.7 11.3 10.7 10.2 8.1 8.2 8.2 8.6 10.0 9.5 9.8 10.0 11.3 10.1 8.2 5.5 6.5 6.2 5.9 6.2 9.7 17.1 5.5
25 6.0 4.3 5.6 5.3 4.1 3.5 3.0 2.9 4.3 5.8 7.1 7.5 7.4 7.9 11.8 10.1 10.3 10.1 8.9 6.2 5.6 5.1 5.7 5.4 6.4 11.8 2.9
26 4.7 4.5 5.1 7.2 5.8 3.5 5.9 5.2 4.2 5.3 6.4 8.3 8.3 11.1 9.7 5.9 10.5 16.6 13.3 9.5 12.0 20.1 14.2 15.1 8.9 20.1 3.5
27 17.4 15.2 13.4 7.7 11.6 13.2 11.9 13.8 14.1 11.6 11.9 11.4 12.4 10.0 11.1 11.6 11.6 12.3 8.5 10.6 14.9 11.7 8.2 5.1 11.7 17.4 5.1
28 6.7 7.1 3.7 5.2 3.1 3.4 6.2 6.7 6.7 7.5 8.2 8.9 9.4 9.5 9.4 9.1 9.3 7.8 6.7 4.8 5.1 5.6 4.5 4.7 6.6 9.5 3.1
29 4.2 5.5 5.9 5.2 2.5 5.5 5.7 9.9 12.6 12.6 12.3 13.4 14.4 14.5 14.4 13.3 13.1 12.3 7.9 7.1 7.7 8.7 9.0 10.4 9.5 14.5 2.5
30 12.2 11.2 11.6 11.4 11.3 11.9 11.6 11.2 10.6 15.8 19.5 22.7 17.9 16.1 17.6 13.9 15.1 15.9 10.4 9.9 9.3 10.2 10.9 10.1 13.3 22.7 9.3
MEAN 7.7 7.9 8.0 7.1 6.6 6.5 5.9 6.7 8.3 8.6 9.1 10.3 10.5 10.4 10.4 9.5 10.0 10.3 8.5 7.2 7.8 8.1 7.6 7.6 8.4
MAX 18.6 17.1 17.1 16.1 13.9 13.2 11.9 14.2 16.7 17.1 19.5 22.7 17.9 18.7 26.7 22.2 25.1 23.7 20.2 14.2 16.5 20.1 16.9 17.1 26.7
MIN 3.1 2.4 2.7 2.5 2.5 2.7 1.6 2.7 3.7 4.8 6.1 6.9 6.9 7.4 5.9 5.5 4.4 3.6 2.7 3.6 4.0 3.3 4.2 3.5 1.6
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =718 DATA RECOVERY RATE =
MONTHLY MEAN =8.4 mps
MAXIMUM WIND GUST =26.7 mps DATE OF OCCURRENCE =6/17 AT 1500 MAXIMUM DAILY MEAN =13.3 mps DATE OF OCCURRENCE =6/30
MINIMUM WIND GUST =1.6 mps DATE OF OCCURRENCE =6/20 AT 0700 MINUMUM DAILY MEAN =5.3 mps DATE OF OCCURRENCE =6/19
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.7%

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

Rio Tinto Kennecott C3
TEMPERATURE in Deg F for APRIL, 2024
Hr Beg 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Hr End 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Day
1 31.9 32.2 32.4 32.3 32.2 32.2 31.9 33.6 34.6 34.9 39.2 38.4 41.3 43.0 44.5 42.4 42.0 40.9 40.1 39.7 39.8 39.2 38.8 38.0 37.3 44.5 31.9
2 37.9 37.8 37.8 37.1 36.6 35.5 35.7 40.2 42.1 43.4 45.4 47.8 49.6 50.9 51.2 51.5 51.0 51.0 48.1 45.0 44.2 44.0 44.2 44.5 43.9 51.5 35.5
3 44.3 44.0 43.3 43.7 44.6 44.6 44.8 46.7 49.7 51.7 53.1 55.0 56.4 57.9 59.0 60.2 60.6 60.3 57.2 56.3 56.7 56.2 55.9 55.4 52.4 60.6 43.3
4 51.9 56.0 54.3 52.8 50.7 48.2 47.3 47.6 49.9 53.3 ------58.4 60.9 63.8 64.1 64.2 64.0 62.7 61.6 60.9 59.4 57.9 54.8 56.6 64.2 47.3
5 51.0 50.4 48.7 49.3 48.1 46.5 45.5 48.4 51.4 52.4 51.1 48.0 43.2 38.2 42.7 44.0 41.6 38.0 34.9 33.1 31.1 30.7 31.3 33.0 43.0 52.4 30.7
6 32.8 31.8 31.7 29.6 29.2 29.0 28.2 30.1 30.7 31.5 30.9 29.0 30.4 31.2 33.9 34.2 33.7 31.6 34.2 34.6 34.4 33.7 32.1 30.3 31.6 34.6 28.2
7 30.6 31.0 30.4 30.2 29.9 29.4 30.1 30.1 32.3 33.4 34.9 35.9 36.9 38.1 40.2 38.7 39.1 39.2 37.7 36.1 34.9 33.6 32.8 31.7 34.0 40.2 29.4
8 32.1 32.0 30.9 31.8 31.2 29.5 31.0 34.3 35.9 37.2 37.0 38.0 39.7 41.5 42.1 42.2 42.2 42.2 39.5 37.9 37.5 37.1 35.8 34.9 36.4 42.2 29.5
9 35.0 35.3 34.1 33.7 33.6 33.4 34.8 39.5 40.0 41.7 43.4 44.9 46.0 46.7 48.6 48.3 48.2 47.9 45.9 42.6 42.0 42.7 42.8 43.7 41.4 48.6 33.4
10 46.2 46.9 46.1 46.5 45.7 44.7 44.0 45.9 47.5 49.5 50.3 50.9 53.3 53.7 54.5 54.6 54.7 54.2 51.1 47.5 46.6 46.6 46.0 46.5 48.9 54.7 44.0
11 45.2 44.0 45.3 45.0 45.3 45.5 47.4 48.4 50.7 54.4 56.2 57.7 59.2 60.7 61.8 63.8 63.7 63.0 60.7 59.1 57.2 58.1 58.5 59.8 54.6 63.8 44.0
12 57.4 55.5 56.9 55.1 55.6 57.4 58.1 59.6 61.3 62.7 63.9 65.6 68.0 69.9 71.1 70.5 70.2 69.4 67.2 64.8 64.8 61.9 61.0 61.4 62.9 71.1 55.1
13 59.3 59.3 61.5 61.3 59.6 55.8 56.2 58.2 59.2 60.3 61.9 63.6 64.3 65.4 66.8 67.5 68.0 67.7 64.8 63.7 63.2 61.4 62.5 59.9 62.1 68.0 55.8
14 57.3 57.2 57.3 56.0 53.4 49.0 49.2 53.2 55.4 57.8 58.1 58.4 59.6 60.5 61.4 61.1 59.7 58.1 56.6 55.5 52.6 48.0 45.1 43.6 55.2 61.4 43.6
15 43.7 41.3 38.6 38.4 37.6 37.1 36.9 37.5 37.5 38.1 38.5 39.3 40.7 40.7 41.4 41.1 40.5 39.5 39.6 39.6 40.2 40.9 40.8 41.9 39.7 43.7 36.9
16 40.0 41.1 45.5 44.5 44.4 44.3 44.2 45.8 46.9 48.0 49.0 50.4 52.6 53.6 54.8 56.3 56.2 54.7 53.5 52.2 51.0 50.6 51.0 51.8 49.3 56.3 40.0
17 52.6 50.9 51.8 50.8 48.3 47.3 47.8 49.8 49.8 49.4 47.7 47.9 48.5 49.0 48.8 49.1 48.9 48.4 46.7 44.3 42.6 40.0 38.0 36.8 47.3 52.6 36.8
18 35.4 33.5 31.2 30.6 29.9 29.8 31.7 34.5 36.2 38.6 40.4 42.0 43.8 46.1 47.5 47.8 48.9 48.6 45.1 42.6 42.2 41.0 41.1 41.2 39.6 48.9 29.8
19 41.4 41.5 39.6 38.5 37.4 37.2 38.0 40.0 42.9 45.1 48.0 51.3 52.3 52.7 53.6 53.2 53.2 53.0 50.6 48.5 46.7 46.9 47.8 48.8 46.2 53.6 37.2
20 48.1 46.4 46.2 46.3 45.3 45.3 48.0 49.8 50.4 52.8 54.8 58.2 60.2 59.5 60.7 61.5 59.9 59.1 56.0 53.2 52.4 51.9 51.9 51.6 52.9 61.5 45.3
21 50.9 52.2 51.3 51.9 52.1 50.9 52.0 56.1 59.2 60.8 62.5 63.5 65.9 68.1 68.8 69.9 70.6 70.3 68.7 65.4 63.2 62.6 62.6 56.7 60.7 70.6 50.9
22 55.6 52.2 51.6 51.3 49.5 48.5 50.8 54.6 54.9 55.6 57.9 60.0 61.3 62.8 63.2 63.9 62.4 61.3 60.9 58.8 60.6 59.5 57.9 57.3 57.2 63.9 48.5
23 56.5 54.7 54.5 53.7 53.2 50.5 51.5 55.5 59.0 62.2 63.8 64.5 64.4 65.3 65.6 65.6 65.4 64.7 62.5 59.2 58.7 58.8 59.2 59.6 59.5 65.6 50.5
24 59.0 55.8 56.1 56.7 56.8 54.7 54.4 57.2 60.3 62.0 63.9 66.6 67.4 68.3 69.0 71.0 70.3 69.7 68.6 66.6 63.7 66.3 62.5 57.7 62.7 71.0 54.4
25 56.0 55.0 53.8 52.9 51.5 50.8 50.4 53.5 55.3 57.1 53.0 50.7 51.3 51.4 53.6 55.7 54.7 52.4 52.8 49.4 45.8 45.9 46.8 47.9 52.0 57.1 45.8
26 48.4 46.5 45.9 45.7 45.0 45.2 45.1 45.3 44.6 41.1 42.5 41.9 42.8 44.0 44.4 42.7 42.4 42.3 42.2 42.2 42.2 41.6 41.6 41.3 43.6 48.4 41.1
27 41.5 41.0 40.1 39.9 40.5 40.7 40.6 41.0 42.2 43.0 42.8 44.1 45.0 45.2 44.5 45.6 45.2 47.5 46.8 44.8 44.0 43.3 42.7 43.0 43.1 47.5 39.9
28 44.9 43.2 42.0 40.8 39.6 40.7 43.4 45.1 45.1 45.9 47.0 47.7 50.2 52.5 52.6 52.6 53.9 53.8 51.7 48.8 48.5 46.8 46.9 47.3 47.1 53.9 39.6
29 46.3 45.5 45.3 45.6 45.1 45.8 46.3 48.9 50.6 53.0 54.5 56.9 59.5 61.1 61.8 61.8 61.6 61.9 59.9 56.8 50.3 48.2 46.2 42.1 52.3 61.9 42.1
30 40.5 39.0 38.1 36.9 35.5 34.0 36.6 40.0 41.9 43.4 44.9 46.8 48.4 50.0 52.1 53.7 54.4 54.5 53.5 50.0 49.9 47.3 47.1 46.4 45.2 54.5 34.0
MEAN 45.8 45.1 44.7 44.3 43.6 42.8 43.4 45.7 47.2 48.7 49.5 50.5 52.0 53.0 54.1 54.5 54.2 53.6 52.0 50.0 48.9 48.1 47.6 47.0 48.6
MAX 59.3 59.3 61.5 61.3 59.6 57.4 58.1 59.6 61.3 62.7 63.9 66.6 68.0 69.9 71.1 71.0 70.6 70.3 68.7 66.6 64.8 66.3 62.6 61.4 71.1
MIN 30.6 31.0 30.4 29.6 29.2 29.0 28.2 30.1 30.7 31.5 30.9 29.0 30.4 31.2 33.9 34.2 33.7 31.6 34.2 33.1 31.1 30.7 31.3 30.3 28.2
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =718 DATA RECOVERY RATE =
MONTHLY MEAN =48.6 Deg F
MAXIMUM TEMPERATURE =71.1 Deg F DATE OF OCCURRENCE =4/12 AT 1500 MAXIMUM DAILY MEAN =62.9 Deg F DATE OF OCCURRENCE =4/12
MINIMUM TEMPERATURE =28.2 Deg F DATE OF OCCURRENCE =4/6 AT 0700 MINUMUM DAILY MEAN =31.6 Deg F DATE OF OCCURRENCE =4/6
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.7%
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for MAY, 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 46.0 44.0 41.8 39.8 37.8 36.8 38.5 40.6 41.4 42.5 43.2 42.8 44.0 44.3 45.1 45.3 45.9 45.1 43.4 39.8 39.2 39.6 37.4 36.6 41.7 46.0 36.6
2 36.1 35.6 34.8 34.6 34.1 34.2 38.0 40.4 41.8 44.2 46.0 48.0 50.6 53.7 53.4 55.0 55.8 56.3 55.0 52.1 52.6 53.4 48.2 47.0 45.9 56.3 34.1
3 44.1 42.9 41.4 39.8 39.3 38.8 39.2 38.9 39.4 43.0 43.5 44.7 45.9 47.9 48.5 49.1 48.8 48.1 46.8 43.7 42.8 42.5 42.1 41.7 43.5 49.1 38.8
4 43.0 45.2 43.8 43.7 44.2 44.0 46.6 49.9 53.1 55.1 58.7 60.5 63.1 65.3 67.8 68.1 68.0 66.9 66.8 65.9 63.3 64.2 65.1 63.9 57.3 68.1 43.0
5 62.9 61.6 59.8 59.4 58.5 58.2 56.8 56.1 54.8 50.0 41.8 37.4 33.1 31.2 29.9 30.9 31.0 30.5 30.7 31.1 32.1 32.0 31.9 31.8 43.1 62.9 29.9
6 31.8 31.2 31.4 31.8 33.2 34.5 34.7 33.9 32.1 31.9 33.2 35.9 39.6 41.4 44.8 46.2 46.5 44.4 44.0 43.1 42.7 42.7 41.9 43.1 38.2 46.5 31.2
7 43.1 41.4 40.9 37.4 34.4 35.6 35.2 37.4 37.2 38.4 39.1 41.0 40.7 39.2 38.5 38.7 36.8 38.0 38.0 37.9 37.1 36.3 35.0 34.2 38.0 43.1 34.2
8 33.5 32.9 32.4 32.3 31.9 32.0 34.3 35.3 37.2 39.0 40.3 40.6 42.1 43.7 44.1 43.7 43.9 42.8 42.2 41.5 41.2 41.0 40.3 39.4 38.7 44.1 31.9
9 39.6 39.8 38.6 39.9 40.4 39.2 40.7 43.8 46.2 45.6 46.6 49.3 51.1 52.8 53.2 46.2 48.0 50.3 51.7 50.5 49.7 47.6 46.3 46.1 46.0 53.2 38.6
10 44.5 44.0 43.2 43.3 43.9 43.0 43.4 46.8 47.7 51.3 53.0 55.0 56.8 56.9 57.0 55.9 55.3 55.9 56.4 53.1 51.5 49.7 48.3 48.0 50.2 57.0 43.0
11 48.2 46.7 46.3 47.4 46.9 46.1 49.8 51.7 53.8 56.2 58.2 59.7 61.1 62.3 63.2 63.7 63.9 64.9 64.0 58.1 56.0 55.1 54.8 52.9 55.5 64.9 46.1
12 55.1 55.1 54.1 52.2 52.3 53.2 56.4 58.0 58.9 61.6 62.7 65.1 66.2 67.6 68.6 69.9 70.2 69.9 68.4 63.1 62.3 60.4 60.2 59.9 61.3 70.2 52.2
13 58.7 58.6 58.6 59.1 58.0 58.0 62.0 63.1 65.2 67.3 68.6 69.8 70.3 71.2 72.4 73.4 68.9 67.6 67.2 64.8 57.3 55.6 55.2 55.1 63.6 73.4 55.1
14 55.7 54.9 53.8 53.2 52.6 52.6 57.3 57.6 58.6 61.5 63.2 64.8 65.1 66.4 66.8 67.2 66.8 65.2 63.4 59.3 58.5 58.0 57.9 56.7 59.9 67.2 52.6
15 55.9 55.0 53.5 52.6 53.1 52.8 51.9 57.1 58.3 60.3 62.2 63.3 64.5 65.2 65.4 65.6 65.3 64.8 63.4 60.3 58.4 58.0 56.2 55.3 59.1 65.6 51.9
16 55.2 55.3 55.0 53.7 53.5 53.1 56.9 59.5 60.8 62.3 64.3 66.5 67.8 68.6 69.4 70.8 70.6 70.9 69.8 65.4 62.9 62.5 61.3 62.2 62.4 70.9 53.1
17 62.9 63.0 62.2 61.6 61.8 63.1 60.1 61.4 64.8 69.3 70.9 72.2 72.1 72.0 72.8 72.1 72.1 71.5 68.1 65.6 61.7 59.1 58.3 56.8 65.6 72.8 56.8
18 54.7 53.2 50.3 50.0 49.8 48.3 53.2 55.8 58.7 59.8 61.9 64.3 66.4 69.4 70.8 71.6 71.3 69.9 69.3 68.2 68.6 64.9 63.2 65.0 61.6 71.6 48.3
19 67.6 67.2 64.1 60.0 62.1 63.0 61.4 60.0 60.0 63.4 61.4 61.8 61.5 61.8 62.2 62.4 62.3 61.8 60.0 57.6 56.5 54.6 52.6 51.9 60.7 67.6 51.9
20 52.6 50.1 49.8 48.5 45.7 45.4 44.7 46.1 47.2 47.8 47.3 46.8 48.6 49.0 46.5 48.0 45.7 45.7 45.7 45.3 44.2 42.9 42.9 41.4 46.6 52.6 41.4
21 42.9 42.4 41.1 41.2 39.5 39.9 42.7 44.8 46.8 47.9 47.5 48.7 51.0 52.6 53.6 54.7 55.7 54.8 53.5 49.6 48.9 49.4 49.3 48.3 47.8 55.7 39.5
22 46.3 44.8 46.1 45.3 44.9 46.7 47.9 48.3 50.3 54.0 57.5 60.5 61.9 64.3 65.2 66.1 67.6 67.8 68.5 68.1 67.6 60.6 49.0 44.8 56.0 68.5 44.8
23 42.7 41.5 41.4 41.3 41.0 40.9 39.9 39.5 41.9 43.4 43.4 45.1 46.2 48.1 49.2 50.1 49.9 49.8 49.2 45.3 43.4 42.3 42.2 41.9 44.2 50.1 39.5
24 42.8 43.9 43.4 41.3 40.0 41.1 44.9 47.2 49.4 52.3 53.5 57.1 59.1 60.9 62.0 60.5 58.0 56.8 55.5 54.6 54.4 53.4 51.4 50.1 51.4 62.0 40.0
25 50.9 50.5 50.0 48.2 49.0 49.8 49.6 47.6 48.2 49.8 51.7 49.6 45.9 45.3 46.5 50.3 52.6 51.2 49.4 48.5 46.0 47.1 48.3 50.0 49.0 52.6 45.3
26 50.2 48.8 48.2 48.8 48.5 48.5 47.4 50.6 54.2 56.9 58.7 59.7 61.2 62.6 63.8 64.3 64.4 64.6 63.8 58.7 56.8 57.5 57.6 57.6 56.4 64.6 47.4
27 55.7 54.3 54.2 53.7 52.0 52.7 57.3 61.2 61.0 63.9 66.2 67.6 69.0 69.7 70.9 71.0 71.2 70.8 69.4 64.4 63.2 64.3 63.9 63.0 62.9 71.2 52.0
28 61.3 61.9 62.9 61.5 59.0 59.4 64.9 68.7 68.6 71.3 73.7 75.7 75.9 70.6 71.8 76.8 77.5 77.6 74.6 73.9 72.3 71.7 70.6 71.0 69.7 77.6 59.0
29 70.3 69.1 65.1 63.0 61.8 61.5 64.0 66.4 68.6 71.7 73.1 72.4 70.5 70.1 68.7 67.5 66.9 66.1 64.4 60.4 57.8 56.7 55.5 54.2 65.2 73.1 54.2
30 53.2 52.1 50.7 49.2 47.8 47.9 51.4 53.6 54.9 56.6 58.0 59.8 61.4 61.7 63.1 63.7 62.4 61.9 60.0 56.4 55.1 56.7 55.3 53.9 56.1 63.7 47.8
31 53.6 53.9 52.3 52.3 51.1 51.5 55.6 57.3 59.5 62.3 63.7 66.0 67.3 68.7 70.0 70.4 70.2 69.5 68.3 63.3 61.9 61.1 60.9 59.9 61.3 70.4 51.1
MEAN 50.4 49.7 48.7 47.9 47.4 47.5 49.3 50.9 52.3 54.2 55.3 56.5 57.4 58.2 58.9 59.3 59.1 58.8 57.8 55.2 53.7 52.9 51.7 51.1 53.5
MAX 70.3 69.1 65.1 63.0 62.1 63.1 64.9 68.7 68.6 71.7 73.7 75.7 75.9 72.0 72.8 76.8 77.5 77.6 74.6 73.9 72.3 71.7 70.6 71.0 77.6
MIN 31.8 31.2 31.4 31.8 31.9 32.0 34.3 33.9 32.1 31.9 33.2 35.9 33.1 31.2 29.9 30.9 31.0 30.5 30.7 31.1 32.1 32.0 31.9 31.8 29.9
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =53.5 Deg F
MAXIMUM TEMPERATURE =77.6 Deg F DATE OF OCCURRENCE =5/28 AT 1800 MAXIMUM DAILY MEAN =69.7 Deg F DATE OF OCCURRENCE =5/28
MINIMUM TEMPERATURE =29.9 Deg F DATE OF OCCURRENCE =5/5 AT 1500 MINUMUM DAILY MEAN =38.0 Deg F DATE OF OCCURRENCE =5/7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Rio Tinto Kennecott C3
TEMPERATURE in Deg F for JUNE, 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 59.1 59.5 59.8 60.0 59.2 58.5 61.8 64.0 65.8 66.9 70.1 74.1 75.5 74.9 76.7 76.4 73.9 72.7 70.8 69.7 69.2 68.4 67.1 67.9 67.6 76.7 58.5
2 68.2 66.2 65.7 65.5 65.3 63.8 64.9 65.2 66.5 68.6 70.1 70.8 72.7 74.3 73.6 74.3 74.8 75.4 74.4 69.6 68.9 67.8 67.5 67.2 69.2 75.4 63.8
3 66.5 68.0 68.2 66.9 66.1 66.6 65.7 64.5 64.6 65.9 67.3 69.2 67.5 67.2 68.1 61.1 56.5 59.1 59.8 60.0 59.9 59.0 59.6 59.9 64.0 69.2 56.5
4 60.7 61.3 59.2 58.0 58.0 56.9 58.6 58.2 60.3 61.2 62.2 63.0 64.8 66.5 68.1 70.7 70.0 69.6 69.4 64.1 62.4 62.5 62.3 62.3 62.9 70.7 56.9
5 62.6 62.5 62.9 63.2 62.9 63.4 65.8 68.8 71.6 73.9 75.1 75.7 77.3 78.9 80.3 80.4 79.9 79.2 78.1 72.8 70.6 70.1 71.3 69.5 71.5 80.4 62.5
6 69.1 67.5 67.9 66.2 65.9 66.5 71.3 72.8 75.7 77.8 79.2 81.7 83.7 85.0 85.8 86.0 86.1 85.8 83.5 79.6 78.3 77.6 76.7 75.9 76.9 86.1 65.9
7 74.8 72.7 70.5 71.9 69.4 70.3 71.9 76.4 78.1 79.9 81.3 82.6 81.8 80.8 82.3 81.9 82.2 79.3 77.0 76.9 68.1 66.6 65.5 65.9 75.3 82.6 65.5
8 65.1 64.3 66.6 64.0 63.3 63.6 67.7 68.9 70.6 73.4 75.0 76.7 79.1 80.4 81.3 83.2 83.0 82.3 80.5 76.7 75.0 74.4 74.8 74.1 73.5 83.2 63.3
9 73.4 73.5 73.8 72.4 72.1 69.4 70.8 74.6 77.6 80.0 81.3 81.4 83.0 83.6 83.5 85.0 84.1 78.2 78.4 77.1 75.6 75.1 71.5 69.8 76.9 85.0 69.4
10 70.0 69.8 67.8 67.6 66.0 63.4 64.9 69.4 70.4 72.6 74.8 75.5 75.6 76.6 78.0 78.2 77.9 77.3 75.8 72.7 70.9 68.6 68.1 68.0 71.7 78.2 63.4
11 67.1 66.0 65.6 64.3 64.5 65.0 69.5 72.7 73.2 74.9 77.1 79.1 80.6 82.1 82.5 82.9 82.6 82.5 81.3 75.8 73.8 72.9 74.8 74.9 74.4 82.9 64.3
12 75.0 73.9 75.0 75.0 73.7 74.4 75.3 76.4 79.0 79.6 78.8 82.0 ---88.6 89.2 89.7 90.2 88.0 85.5 81.9 80.0 78.1 78.8 76.6 80.2 90.2 73.7
13 73.5 73.0 73.0 71.4 71.1 69.4 73.0 75.8 78.4 80.5 83.0 85.2 87.2 88.6 89.2 90.2 90.0 90.1 88.2 84.7 82.3 84.8 83.6 81.1 81.1 90.2 69.4
14 77.3 75.7 76.0 74.4 70.7 69.0 70.0 73.2 75.4 77.2 79.3 80.6 82.2 83.0 83.6 84.7 85.4 85.3 85.6 79.7 78.5 80.2 78.4 77.6 78.5 85.6 69.0
15 79.5 78.5 73.4 72.8 71.1 68.6 70.7 70.8 70.2 72.6 74.6 76.8 78.4 79.4 80.2 79.8 80.1 79.3 77.6 72.9 71.3 70.0 65.8 63.1 74.1 80.2 63.1
16 60.4 58.5 56.0 54.9 54.1 55.1 56.9 57.9 60.9 63.1 65.9 67.6 68.7 70.3 71.9 71.6 71.8 71.6 70.3 67.1 65.6 64.5 64.0 64.5 63.9 71.9 54.1
17 63.9 63.5 62.3 62.4 61.6 62.0 66.2 69.8 69.4 68.0 67.6 66.7 66.5 65.0 59.4 55.2 52.5 51.7 49.2 46.3 43.7 42.2 42.2 43.6 58.4 69.8 42.2
18 43.2 42.5 41.9 40.1 39.1 40.6 45.5 47.1 47.9 49.7 52.1 54.7 56.5 58.2 59.1 60.0 60.6 60.0 59.0 56.8 54.4 53.6 52.6 52.7 51.2 60.6 39.1
19 53.3 53.7 54.1 53.2 52.4 51.6 55.5 58.7 58.8 61.2 64.0 65.8 67.1 67.3 67.5 70.7 70.3 70.1 69.4 67.4 65.8 64.3 62.8 63.6 62.0 70.7 51.6
20 62.9 61.8 61.7 61.9 61.3 61.0 63.6 66.2 70.2 73.3 75.3 77.6 79.8 79.6 80.6 81.0 81.1 79.8 78.5 75.4 72.7 70.7 69.1 69.3 71.4 81.1 61.0
21 69.2 70.7 69.6 71.6 70.6 70.4 71.5 72.9 73.7 75.6 77.5 78.8 78.5 77.7 80.0 80.9 81.6 81.7 80.7 75.7 73.5 72.7 73.5 72.7 75.1 81.7 69.2
22 72.1 70.1 71.0 68.7 69.0 68.2 71.4 74.0 76.3 78.8 80.4 82.4 84.1 85.5 85.8 87.9 87.7 88.6 87.4 81.3 80.0 79.7 80.8 78.3 78.7 88.6 68.2
23 74.9 72.6 75.5 71.8 71.2 73.3 76.3 78.5 80.5 83.0 84.4 86.8 88.0 89.7 91.1 91.7 92.1 91.7 89.4 83.7 82.0 82.8 81.3 79.1 82.1 92.1 71.2
24 78.8 77.5 78.5 74.8 73.3 72.4 77.0 80.1 81.8 83.1 85.0 86.5 87.1 87.9 87.9 88.7 88.5 88.0 86.8 81.8 78.9 78.7 80.1 77.8 81.7 88.7 72.4
25 77.1 75.5 75.2 75.0 73.3 73.0 74.9 79.2 80.7 84.0 86.1 88.2 88.8 90.4 89.9 89.4 89.4 89.1 87.5 83.1 80.0 78.9 79.9 78.5 82.0 90.4 73.0
26 78.0 77.5 79.6 78.0 76.0 75.4 74.7 75.2 75.6 77.1 79.2 81.4 82.2 85.3 87.0 86.9 84.2 81.3 81.2 78.8 75.3 74.1 75.5 74.7 78.9 87.0 74.1
27 69.9 67.7 66.8 67.2 67.5 64.6 66.6 72.5 71.7 74.6 77.3 78.3 79.4 82.9 83.1 83.1 82.7 80.8 80.3 76.6 72.6 70.4 69.9 68.8 74.0 83.1 64.6
28 68.5 66.1 64.6 63.3 61.0 61.2 63.5 65.3 66.8 68.2 70.2 72.4 73.7 74.6 75.5 76.0 76.6 76.2 74.9 71.0 69.3 68.8 68.2 67.5 69.3 76.6 61.0
29 67.3 67.3 67.1 68.0 67.4 66.7 68.3 73.1 74.8 79.1 82.1 83.8 85.7 88.5 89.0 89.3 90.1 90.6 90.5 88.9 87.9 86.1 86.7 82.7 80.1 90.6 66.7
30 81.4 79.3 77.3 73.5 70.9 73.3 75.5 78.3 80.7 82.6 85.7 86.7 87.6 88.7 89.7 90.3 90.9 90.9 91.6 89.2 87.0 82.7 74.2 72.0 82.5 91.6 70.9
MEAN 68.8 67.9 67.6 66.6 65.6 65.3 67.6 70.0 71.6 73.5 75.4 77.1 78.0 79.4 80.0 80.2 79.9 79.2 78.1 74.6 72.5 71.5 70.9 70.0 73.0
MAX 81.4 79.3 79.6 78.0 76.0 75.4 77.0 80.1 81.8 84.0 86.1 88.2 88.8 90.4 91.1 91.7 92.1 91.7 91.6 89.2 87.9 86.1 86.7 82.7 92.1
MIN 43.2 42.5 41.9 40.1 39.1 40.6 45.5 47.1 47.9 49.7 52.1 54.7 56.5 58.2 59.1 55.2 52.5 51.7 49.2 46.3 43.7 42.2 42.2 43.6 39.1
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =719 DATA RECOVERY RATE =
MONTHLY MEAN =73.0 Deg F
MAXIMUM TEMPERATURE =92.1 Deg F DATE OF OCCURRENCE =6/23 AT 1700 MAXIMUM DAILY MEAN =82.5 Deg F DATE OF OCCURRENCE =6/30
MINIMUM TEMPERATURE =39.1 Deg F DATE OF OCCURRENCE =6/18 AT 0500 MINUMUM DAILY MEAN =51.2 Deg F DATE OF OCCURRENCE =6/18
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.9%
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for APRIL, 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 30.9 30.7 30.6 31.1 30.8 30.9 30.7 31.3 32.2 32.5 35.5 36.0 38.4 40.1 40.7 40.8 40.1 39.3 38.7 38.5 38.4 38.3 37.9 37.5 35.5 40.8 30.6
2 36.6 36.1 36.6 37.7 37.9 36.8 36.0 38.0 39.3 41.2 43.3 45.3 47.0 48.2 49.1 49.6 49.1 48.3 46.0 44.8 44.7 45.1 45.2 44.9 42.8 49.6 36.0
3 45.5 45.9 45.2 45.0 45.2 44.5 44.2 46.2 48.6 50.1 51.9 53.4 54.7 56.1 57.2 58.2 58.6 57.5 55.7 54.7 54.8 55.2 54.8 55.1 51.6 58.6 44.2
4 55.2 53.9 52.8 51.3 48.9 47.0 45.4 48.3 50.5 51.1 51.6 54.4 56.6 58.9 60.9 61.5 61.6 61.6 60.1 58.7 57.7 56.3 55.4 54.0 54.7 61.6 45.4
5 50.0 48.9 47.7 48.1 47.3 47.2 45.3 46.3 48.8 49.7 48.4 44.4 39.8 35.3 40.2 41.9 40.7 35.8 33.6 32.0 29.6 29.5 30.5 31.4 41.4 50.0 29.5
6 31.0 30.8 30.6 28.2 28.1 27.8 28.1 28.4 28.3 29.0 28.4 27.0 26.6 29.7 30.0 31.8 32.3 30.7 32.4 32.8 32.7 32.2 31.3 30.6 29.9 32.8 26.6
7 30.4 29.9 29.3 28.6 28.1 27.2 26.7 27.9 30.7 31.8 32.4 33.6 33.9 35.4 37.4 37.2 36.8 37.1 35.7 34.5 34.1 33.0 31.8 31.1 32.3 37.4 26.7
8 30.9 30.7 31.0 30.6 30.2 29.8 29.9 32.1 33.3 34.8 35.8 35.6 37.7 39.1 39.4 39.5 40.0 39.5 37.5 36.2 35.8 35.8 35.6 35.3 34.8 40.0 29.8
9 35.2 35.3 35.5 34.8 34.9 34.9 35.0 37.1 39.0 39.3 40.7 42.1 43.6 45.2 45.8 46.9 46.7 46.1 43.7 42.9 42.7 43.0 43.6 45.9 40.8 46.9 34.8
10 45.8 45.8 45.5 45.1 45.3 45.3 44.4 43.3 44.4 46.5 47.7 49.3 50.5 51.4 51.8 52.3 52.0 50.9 49.1 47.4 46.9 47.2 47.0 47.8 47.6 52.3 43.3
11 47.6 45.5 46.0 46.2 46.3 46.3 46.0 49.4 50.7 52.3 53.3 55.6 57.7 59.6 60.7 60.9 60.9 60.3 57.6 55.8 56.9 57.7 57.6 57.7 53.7 60.9 45.5
12 56.9 56.0 54.5 54.8 55.0 55.5 55.9 57.2 59.0 60.3 62.0 63.8 66.5 67.8 68.6 67.7 67.7 66.5 64.6 62.7 62.2 60.5 58.9 58.1 60.9 68.6 54.5
13 57.1 54.4 56.6 55.9 53.3 51.9 52.9 54.6 56.3 57.8 60.0 61.3 62.7 63.8 64.9 65.5 65.7 65.0 63.0 60.4 59.9 58.8 59.6 58.6 59.2 65.7 51.9
14 56.7 56.4 55.2 53.3 52.2 50.9 49.5 52.3 53.1 55.9 56.0 56.4 57.6 58.7 59.5 58.6 57.0 55.4 53.3 52.1 50.9 47.4 40.7 40.2 53.3 59.5 40.2
15 40.5 37.0 35.8 36.3 35.9 35.8 35.6 34.9 37.3 36.7 37.7 37.7 38.9 39.2 40.3 40.0 39.3 38.5 38.7 38.8 38.8 39.2 40.5 44.3 38.2 44.3 34.9
16 41.9 42.9 44.0 43.6 43.2 43.0 42.8 44.2 45.7 47.0 47.7 49.6 51.4 52.2 52.6 53.7 54.0 52.5 51.3 50.6 50.6 50.0 50.2 50.8 48.1 54.0 41.9
17 51.2 51.4 52.6 50.8 49.0 47.6 47.2 48.0 47.4 48.1 47.4 46.8 47.7 47.9 47.7 47.6 47.3 46.5 44.4 43.5 41.7 39.7 37.1 35.2 46.4 52.6 35.2
18 34.0 32.0 30.7 29.5 29.0 29.6 31.1 33.3 34.5 36.4 38.8 40.3 42.6 44.0 45.7 46.5 46.9 46.9 43.5 42.0 42.5 41.4 41.1 42.7 38.5 46.9 29.0
19 43.8 41.9 39.3 39.5 39.1 38.1 38.7 38.9 42.0 42.6 45.6 48.1 50.0 51.5 51.7 51.8 51.0 50.4 48.3 47.2 47.2 46.7 47.3 47.7 45.4 51.8 38.1
20 48.1 46.0 45.7 46.0 46.4 46.1 47.8 48.4 50.2 51.3 53.9 57.1 58.0 58.2 58.6 58.8 58.0 56.9 54.5 53.3 52.5 52.6 52.3 52.9 52.2 58.8 45.7
21 52.9 52.8 52.6 52.6 52.1 52.3 53.0 54.5 57.2 58.4 60.4 62.2 63.8 66.3 66.5 67.7 68.5 67.4 65.1 62.6 62.3 62.7 62.2 57.2 59.7 68.5 52.1
22 51.5 50.0 49.5 49.4 49.0 48.1 49.0 52.2 51.4 53.5 55.3 57.6 58.9 60.4 61.6 61.7 61.4 59.7 58.2 57.5 59.4 59.4 57.8 56.9 55.4 61.7 48.1
23 55.6 54.2 53.9 53.2 54.2 51.8 53.7 55.0 55.2 58.6 60.7 61.9 61.6 61.7 62.4 62.5 62.8 62.5 60.2 58.8 58.8 58.9 58.9 59.4 58.2 62.8 51.8
24 57.6 56.1 55.6 56.6 57.6 56.2 55.8 56.8 59.3 60.4 63.6 65.3 66.3 66.5 67.2 67.6 67.4 67.2 65.3 62.5 61.7 62.8 60.6 55.4 61.3 67.6 55.4
25 55.1 53.0 51.8 51.1 50.3 50.1 49.6 52.4 53.6 53.8 49.3 47.7 48.7 49.2 51.5 53.0 53.0 50.9 50.6 47.4 43.8 43.7 47.1 46.0 50.1 55.1 43.7
26 46.7 44.7 44.2 44.6 44.1 43.9 43.3 43.9 43.8 41.8 40.7 40.6 40.9 41.9 42.3 41.6 41.7 41.3 40.7 40.2 40.4 40.2 39.8 39.7 42.2 46.7 39.7
27 39.7 39.6 38.1 37.9 38.2 38.9 39.1 39.5 40.2 41.2 41.9 42.4 42.9 43.0 43.0 42.3 42.4 44.6 44.6 43.0 41.7 42.6 43.0 43.3 41.4 44.6 37.9
28 42.9 41.5 41.0 39.3 37.9 41.3 42.2 42.8 43.1 44.5 45.0 46.9 47.1 49.2 49.8 50.4 51.3 51.3 49.3 47.7 45.9 45.5 46.5 46.7 45.4 51.3 37.9
29 46.6 46.5 47.0 46.9 46.4 47.1 48.0 48.2 50.9 51.0 53.1 54.7 56.4 59.5 59.6 59.6 59.4 58.9 55.7 54.2 49.4 46.3 45.1 40.7 51.3 59.6 40.7
30 38.1 37.7 37.2 35.4 34.0 32.8 34.5 37.9 40.4 41.6 43.3 44.7 46.5 48.3 50.5 52.6 52.5 52.7 51.5 49.7 48.9 48.5 48.5 47.5 44.0 52.7 32.8
MEAN 45.2 44.2 43.9 43.4 43.0 42.6 42.7 44.1 45.6 46.6 47.7 48.7 49.8 50.9 51.9 52.3 52.2 51.4 49.8 48.4 47.8 47.3 46.9 46.5 47.2
MAX 57.6 56.4 56.6 56.6 57.6 56.2 55.9 57.2 59.3 60.4 63.6 65.3 66.5 67.8 68.6 67.7 68.5 67.4 65.3 62.7 62.3 62.8 62.2 59.4 68.6
MIN 30.4 29.9 29.3 28.2 28.1 27.2 26.7 27.9 28.3 29.0 28.4 27.0 26.6 29.7 30.0 31.8 32.3 30.7 32.4 32.0 29.6 29.5 30.5 30.6 26.6
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =720 DATA RECOVERY RATE =
MONTHLY MEAN =47.2 Deg F
MAXIMUM TEMPERATURE =68.6 Deg F DATE OF OCCURRENCE =4/12 AT 1500 MAXIMUM DAILY MEAN =61.3 Deg F DATE OF OCCURRENCE =4/24
MINIMUM TEMPERATURE =26.6 Deg F DATE OF OCCURRENCE =4/6 AT 1300 MINUMUM DAILY MEAN =29.9 Deg F DATE OF OCCURRENCE =4/6
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for MAY, 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 46.5 43.4 41.5 40.6 38.1 37.5 37.5 38.3 39.0 39.6 40.0 41.1 41.8 42.7 42.6 43.6 43.7 42.9 40.5 38.8 38.6 38.8 37.0 35.7 40.4 46.5 35.7
2 35.0 35.0 34.9 34.5 34.2 34.4 36.2 38.8 40.2 42.8 44.6 46.7 49.2 51.9 53.0 54.6 54.0 53.6 53.2 51.5 51.9 51.9 46.3 45.3 44.7 54.6 34.2
3 43.7 41.9 39.8 38.1 37.7 36.8 37.5 37.6 38.2 40.3 41.4 42.9 43.8 46.2 46.1 46.5 46.8 46.2 44.2 42.1 42.8 42.5 42.7 43.4 42.1 46.8 36.8
4 44.4 44.9 44.6 44.3 45.0 44.6 46.9 49.9 52.7 53.9 55.8 58.5 61.3 64.4 66.1 65.9 65.6 64.6 64.7 64.4 63.1 62.6 62.7 61.7 56.4 66.1 44.3
5 61.0 59.5 57.8 57.1 56.3 55.9 54.3 53.7 52.3 50.1 39.3 34.6 31.3 30.1 29.5 29.9 30.1 30.8 30.7 31.4 32.3 31.7 30.9 30.6 41.7 61.0 29.5
6 30.4 30.5 30.5 30.1 30.2 32.3 32.4 31.7 31.8 32.2 32.9 34.3 36.7 39.1 41.3 42.3 42.8 42.3 42.4 41.1 40.9 41.3 43.0 44.3 36.5 44.3 30.1
7 42.9 40.6 38.7 35.3 33.0 32.9 33.4 34.5 35.3 36.2 37.4 38.0 38.0 36.4 34.1 34.5 33.3 34.0 35.5 35.9 35.4 34.6 33.6 33.0 35.7 42.9 32.9
8 32.1 31.3 31.1 30.6 30.9 31.7 32.4 33.9 35.0 36.7 37.4 37.6 39.2 40.6 41.2 40.9 41.2 40.6 40.1 39.3 39.5 39.1 37.4 37.2 36.6 41.2 30.6
9 38.1 38.8 39.2 39.3 39.7 39.7 40.0 41.3 43.3 43.6 44.2 45.9 48.2 49.6 50.0 42.6 44.8 47.0 47.8 48.3 48.0 46.5 45.3 44.7 44.0 50.0 38.1
10 44.3 43.3 42.7 42.4 43.2 42.8 41.6 44.2 46.8 49.0 51.0 52.6 54.0 55.2 55.1 54.2 53.5 53.7 53.4 50.6 49.7 49.5 48.8 48.8 48.8 55.2 41.6
11 48.6 48.3 47.7 48.3 48.2 46.7 48.1 49.2 50.9 52.8 55.7 57.0 58.2 60.0 59.6 60.7 61.1 61.7 60.7 55.3 56.3 54.5 53.7 53.7 54.0 61.7 46.7
12 53.5 54.3 54.8 55.9 55.4 55.2 56.4 57.9 59.1 60.0 61.1 62.2 63.7 65.1 66.3 66.9 67.0 66.6 65.6 63.4 61.6 61.8 62.5 62.0 60.8 67.0 53.5
13 61.2 61.4 61.0 60.7 60.3 59.9 61.8 63.8 63.7 64.8 65.4 67.1 68.5 68.4 69.5 70.2 67.3 64.8 65.0 62.1 55.3 54.1 53.1 55.6 62.7 70.2 53.1
14 56.3 56.2 56.1 55.5 54.9 55.1 57.3 55.7 56.1 58.0 60.4 61.9 62.8 63.5 63.5 63.8 64.4 62.7 60.5 58.1 57.6 57.3 56.3 56.2 58.8 64.4 54.9
15 56.0 55.3 54.5 53.5 54.1 54.3 51.3 54.7 56.1 56.9 58.6 60.9 61.9 62.7 61.9 62.5 62.5 61.9 60.3 59.3 59.2 58.7 58.2 57.6 58.0 62.7 51.3
16 57.3 57.3 57.1 56.3 55.7 54.7 55.3 57.6 59.5 60.6 62.4 63.6 65.2 66.2 66.4 67.0 68.4 68.5 66.9 63.6 62.4 62.5 62.5 61.7 61.6 68.5 54.7
17 60.7 61.8 62.6 61.8 61.9 60.9 63.5 65.8 65.8 64.7 68.3 69.0 68.8 68.9 70.2 70.4 70.4 69.2 66.5 64.2 61.9 58.7 57.1 55.9 64.5 70.4 55.9
18 55.5 54.2 51.1 49.9 49.4 48.2 50.6 53.9 55.9 57.9 61.2 63.0 65.0 67.1 68.5 69.5 70.2 67.8 68.0 66.8 65.7 64.8 63.6 64.5 60.5 70.2 48.2
19 63.9 64.2 63.2 63.6 63.0 61.5 60.4 59.3 58.9 60.5 59.8 60.5 59.8 60.0 60.0 60.3 59.8 59.3 57.6 56.6 56.0 53.5 51.1 49.3 59.3 64.2 49.3
20 51.1 49.7 48.1 48.7 46.9 43.6 43.2 44.1 44.9 46.0 45.1 45.5 46.7 47.5 46.2 44.2 43.6 44.6 43.6 43.3 43.1 42.8 41.8 40.2 45.2 51.1 40.2
21 39.9 41.3 40.3 40.0 38.6 38.1 40.6 42.6 43.8 42.1 44.3 46.6 48.7 49.9 50.9 51.7 52.9 52.9 50.7 48.9 46.6 46.6 47.0 48.6 45.6 52.9 38.1
22 48.1 47.9 48.1 47.9 47.3 47.8 48.9 48.9 49.1 50.3 55.5 58.6 60.1 62.4 63.6 64.6 65.6 66.3 66.0 65.4 65.1 58.6 48.7 43.7 55.4 66.3 43.7
23 41.4 40.3 39.7 39.4 39.9 39.1 38.2 38.0 39.0 40.3 40.5 41.8 43.9 46.1 47.7 48.3 48.1 47.4 46.2 43.9 43.3 42.9 42.6 42.7 42.5 48.3 38.0
24 42.4 42.7 42.4 41.5 41.8 42.2 43.9 46.2 48.7 50.2 51.4 55.7 58.2 60.1 59.7 57.5 53.1 50.0 51.4 51.7 51.9 50.9 49.3 49.8 49.7 60.1 41.5
25 49.9 49.8 48.1 46.7 46.7 47.1 46.6 45.5 46.2 47.2 47.2 46.9 44.6 43.7 44.8 46.8 50.9 48.8 46.6 47.8 45.4 46.5 46.7 46.6 47.0 50.9 43.7
26 47.5 47.9 48.3 48.1 47.8 50.0 51.9 53.5 52.4 55.1 56.2 57.3 57.8 58.4 59.8 61.1 60.6 61.7 60.9 58.1 56.5 55.9 57.4 57.5 55.1 61.7 47.5
27 58.2 57.1 56.9 56.9 54.8 54.6 56.4 59.8 59.4 61.2 63.2 65.1 66.5 67.6 68.5 68.7 68.9 68.2 66.7 64.0 62.7 63.9 63.9 63.8 62.4 68.9 54.6
28 63.4 63.4 64.5 63.1 61.8 62.2 64.5 66.5 68.3 71.2 72.2 73.3 72.7 68.7 72.0 73.3 73.8 74.3 73.1 70.5 69.1 67.2 68.2 68.4 68.6 74.3 61.8
29 68.6 66.7 65.3 64.5 65.2 63.5 64.0 64.1 66.6 69.6 71.6 70.0 68.1 67.3 66.5 65.5 64.5 63.5 61.8 58.8 57.4 56.7 55.1 54.0 64.1 71.6 54.0
30 52.8 51.8 51.0 49.1 47.8 46.8 49.0 51.0 52.7 54.4 55.6 57.2 58.9 59.8 60.7 61.4 60.7 59.2 57.9 55.8 54.4 55.4 56.0 55.4 54.8 61.4 46.8
31 55.1 55.5 55.4 54.1 52.8 52.8 54.7 55.9 58.1 59.8 61.6 63.5 64.6 67.4 67.8 68.1 68.3 67.4 65.9 62.9 62.0 61.3 62.0 61.5 60.8 68.3 52.8
MEAN 50.0 49.6 48.9 48.3 47.8 47.5 48.3 49.6 50.6 51.9 52.9 54.2 55.1 56.0 56.5 56.7 56.7 56.2 55.3 53.7 52.8 52.0 51.1 50.8 52.2
MAX 68.6 66.7 65.3 64.5 65.2 63.5 64.5 66.5 68.3 71.2 72.2 73.3 72.7 68.9 72.0 73.3 73.8 74.3 73.1 70.5 69.1 67.2 68.2 68.4 74.3
MIN 30.4 30.5 30.5 30.1 30.2 31.7 32.4 31.7 31.8 32.2 32.9 34.3 31.3 30.1 29.5 29.9 30.1 30.8 30.7 31.4 32.3 31.7 30.9 30.6 29.5
POSSIBLE NUMBER OF OBSERVATIONS =744 ACTUAL NUMBER OF OBSERVATIONS =744 DATA RECOVERY RATE =
MONTHLY MEAN =52.2 Deg F
MAXIMUM TEMPERATURE =74.3 Deg F DATE OF OCCURRENCE =5/28 AT 1800 MAXIMUM DAILY MEAN =68.6 Deg F DATE OF OCCURRENCE =5/28
MINIMUM TEMPERATURE =29.5 Deg F DATE OF OCCURRENCE =5/5 AT 1500 MINUMUM DAILY MEAN =35.7 Deg F DATE OF OCCURRENCE =5/7
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
100.0%
Rio Tinto Kennecott Hi-Country
TEMPERATURE in Deg F for JUNE, 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 60.8 60.4 60.7 61.2 61.5 60.9 60.3 62.0 63.7 66.5 69.8 73.3 74.2 72.4 71.0 72.6 71.5 70.4 68.9 68.2 67.9 67.5 66.3 67.3 66.6 74.2 60.3
2 67.9 66.1 65.2 65.4 63.8 63.9 64.0 65.1 64.3 65.3 67.7 68.4 69.5 70.8 71.7 71.5 71.5 72.8 72.0 69.7 68.6 67.8 67.3 67.4 67.8 72.8 63.8
3 67.3 67.3 67.1 66.3 65.7 65.7 64.4 63.5 63.3 65.2 65.8 67.8 64.5 64.8 65.8 62.5 56.8 58.4 58.9 59.0 59.4 60.6 62.0 61.5 63.5 67.8 56.8
4 61.4 60.9 59.6 58.6 57.7 56.3 56.4 57.0 57.6 58.3 60.3 61.7 62.8 65.4 65.7 67.2 67.5 67.6 66.8 63.6 62.5 62.4 62.9 63.5 61.8 67.6 56.3
5 63.2 63.7 64.0 63.9 64.0 64.3 67.4 70.2 71.8 74.0 73.0 73.6 74.9 76.6 78.0 78.5 77.8 76.4 75.2 72.0 70.9 70.1 70.5 71.2 71.0 78.5 63.2
6 70.8 70.4 70.2 69.2 68.6 68.5 69.3 71.4 74.4 76.1 78.0 80.2 81.4 81.8 83.5 83.2 84.0 83.6 81.8 79.0 78.1 76.8 73.9 73.9 76.2 84.0 68.5
7 73.2 71.2 69.2 69.3 69.3 69.4 70.4 73.6 75.7 77.0 78.9 80.0 79.5 80.1 80.2 79.2 79.1 75.9 73.5 72.5 63.7 62.8 64.3 64.2 73.0 80.2 62.8
8 64.5 64.7 66.0 66.6 65.7 64.3 65.7 67.2 69.3 71.8 73.5 75.4 77.0 77.8 79.5 79.7 79.9 79.6 78.4 76.3 74.8 73.9 74.0 74.5 72.5 79.9 64.3
9 74.8 73.8 73.7 72.0 70.6 69.9 71.1 73.0 76.4 78.4 79.6 81.0 82.9 83.0 82.4 82.9 79.9 75.0 75.7 75.4 75.8 73.1 69.0 68.8 75.8 83.0 68.8
10 68.6 69.2 69.4 66.8 65.2 62.2 63.6 66.7 67.9 70.0 71.8 73.4 74.0 74.4 75.1 76.2 75.9 74.9 73.7 71.2 71.4 70.4 70.1 68.7 70.4 76.2 62.2
11 69.1 68.5 66.9 65.9 66.2 66.7 68.4 71.0 72.1 73.7 75.3 77.7 78.9 79.1 80.0 80.5 80.2 79.5 78.5 75.1 74.3 74.2 73.8 74.7 73.8 80.5 65.9
12 74.8 74.8 74.8 74.4 74.9 74.4 77.3 74.1 76.8 ------80.9 84.6 85.2 86.6 87.3 87.9 86.9 83.5 79.7 78.9 79.1 77.5 78.1 79.6 87.9 74.1
13 75.1 73.6 73.9 73.9 72.5 71.9 72.2 74.6 76.4 78.9 82.0 84.1 85.2 87.0 87.7 88.4 87.6 87.0 83.8 79.8 78.5 81.1 79.9 78.1 79.7 88.4 71.9
14 76.6 73.5 73.5 72.7 71.8 70.7 71.2 72.2 72.2 75.2 77.1 79.1 80.3 81.8 82.1 83.0 83.3 82.7 81.3 77.9 77.4 78.5 77.5 77.1 77.0 83.3 70.7
15 76.0 75.8 71.8 74.7 71.5 68.7 69.4 69.0 68.6 69.8 72.7 73.9 75.7 76.3 77.3 78.1 77.4 77.2 74.6 72.2 69.4 69.1 66.1 64.2 72.5 78.1 64.2
16 60.6 55.5 53.3 53.7 52.0 51.2 52.7 54.9 57.1 59.9 63.0 64.7 66.7 68.3 69.7 70.0 69.5 69.2 68.2 64.8 65.3 65.1 65.0 65.3 61.9 70.0 51.2
17 64.4 63.9 63.6 63.7 63.0 62.6 65.0 67.5 68.1 67.4 65.6 65.6 65.3 62.9 58.7 53.3 49.4 48.7 47.1 44.1 42.9 42.3 42.4 42.4 57.5 68.1 42.3
18 42.6 41.3 41.1 39.9 39.5 40.4 42.5 44.9 46.0 47.3 49.6 51.9 54.2 56.4 57.8 58.8 58.8 58.7 57.0 54.4 52.8 52.3 52.1 52.6 49.7 58.8 39.5
19 53.8 53.8 54.4 53.4 52.4 51.7 54.4 55.6 56.6 58.8 62.4 64.3 65.3 65.6 67.0 69.1 68.0 68.4 67.3 65.5 64.5 64.2 63.7 64.4 61.0 69.1 51.7
20 64.3 64.5 64.0 63.9 63.3 62.5 62.9 64.6 68.7 71.3 73.3 75.2 76.9 78.1 78.3 78.9 79.1 77.8 75.7 74.0 72.6 72.3 71.7 71.5 71.1 79.1 62.5
21 71.2 71.1 70.5 69.1 67.8 67.5 69.3 70.3 71.9 74.3 76.8 75.9 76.1 77.6 75.1 78.2 80.1 79.1 77.9 75.0 73.1 72.6 72.4 71.9 73.5 80.1 67.5
22 71.0 70.2 70.8 71.0 68.8 68.9 71.2 72.6 75.1 76.7 79.0 81.4 83.4 83.3 83.5 85.1 85.3 85.4 84.8 80.2 79.1 79.3 78.6 80.1 77.7 85.4 68.8
23 79.4 77.8 77.5 77.3 77.3 75.7 74.4 78.3 78.7 80.9 83.4 85.7 88.1 87.9 89.4 88.9 87.8 88.0 86.9 82.9 81.1 81.1 80.5 78.7 82.0 89.4 74.4
24 77.6 78.2 77.7 77.6 75.9 74.2 75.6 77.2 79.8 81.6 83.9 84.3 84.5 85.2 86.0 85.8 85.5 85.1 84.0 81.1 79.2 78.4 78.9 78.8 80.7 86.0 74.2
25 78.7 78.2 77.2 77.8 75.9 75.3 75.0 77.1 80.4 82.7 83.4 85.0 86.7 87.6 87.6 87.3 87.0 86.2 84.6 81.5 81.0 80.2 80.2 81.0 81.6 87.6 75.0
26 80.6 79.6 77.6 76.6 76.1 74.9 73.7 73.8 73.7 76.1 77.5 80.0 80.6 83.0 83.1 83.7 79.3 74.4 75.4 75.4 73.6 73.3 72.9 72.2 77.0 83.7 72.2
27 67.8 65.9 66.1 68.5 65.3 63.1 66.1 69.2 70.8 72.2 74.2 76.1 77.6 78.4 82.0 81.6 81.0 79.2 77.4 75.5 71.6 70.3 70.1 67.0 72.4 82.0 63.1
28 66.3 65.2 64.3 63.4 60.2 58.9 60.0 62.7 65.1 66.8 68.5 69.4 71.2 72.8 73.7 73.9 74.4 74.5 72.9 69.2 68.3 69.3 69.0 69.1 67.9 74.5 58.9
29 69.0 67.7 68.3 69.3 67.9 67.0 67.0 70.9 74.8 76.8 78.9 81.7 84.5 86.8 87.3 87.9 87.9 87.9 87.0 83.1 80.9 80.5 82.0 78.6 78.1 87.9 67.0
30 78.4 77.3 76.4 76.3 75.5 75.8 75.7 75.9 78.5 81.5 83.3 84.6 85.7 86.9 88.2 88.7 88.7 88.4 87.8 85.2 83.2 80.1 73.1 70.9 81.1 88.7 70.9
MEAN 69.0 68.1 67.6 67.4 66.3 65.6 66.6 68.2 69.9 71.5 73.4 75.2 76.4 77.2 77.8 78.1 77.4 76.6 75.4 72.8 71.4 71.0 70.3 69.9 71.8
MAX 80.6 79.6 77.7 77.8 77.3 75.8 77.3 78.3 80.4 82.7 83.9 85.7 88.1 87.9 89.4 88.9 88.7 88.4 87.8 85.2 83.2 81.1 82.0 81.0 89.4
MIN 42.6 41.3 41.1 39.9 39.5 40.4 42.5 44.9 46.0 47.3 49.6 51.9 54.2 56.4 57.8 53.3 49.4 48.7 47.1 44.1 42.9 42.3 42.4 42.4 39.5
POSSIBLE NUMBER OF OBSERVATIONS =720 ACTUAL NUMBER OF OBSERVATIONS =718 DATA RECOVERY RATE =
MONTHLY MEAN =71.8 Deg F
MAXIMUM TEMPERATURE =89.4 Deg F DATE OF OCCURRENCE =6/23 AT 1500 MAXIMUM DAILY MEAN =82.0 Deg F DATE OF OCCURRENCE =6/23
MINIMUM TEMPERATURE =39.5 Deg F DATE OF OCCURRENCE =6/18 AT 0500 MINUMUM DAILY MEAN =49.7 Deg F DATE OF OCCURRENCE =6/18
MEANS REQUIRE 75% VALID DATA MISSING DATA DENOTED BY ---
MEAN MAX MIN
99.7%

Rio Tinto Kennecott / Second Quarter 2024 Summary Report
Trinity Consultants
APPENDIX C: EQUIPMENT CALIBRATIONS FOR SECOND QUARTER
2024
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)834.9
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.01956 Ta (°C)12.7
Correlation 0.99995 Ta (°K)285.9
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 2.76 24.720 46.168 580.058 0.926 1.092 0.0646
1 2.68 26.200 48.932 577.294 0.922 1.076 0.0636
2 2.69 28.380 53.004 573.223 0.915 1.078 0.0638
3 2.59 33.300 62.193 564.034 0.901 1.058 0.0626
4 2.46 39.250 73.305 552.921 0.883 1.032 0.0610
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)
Difference c Difference
1.092 1.092 0.0% -3.4%
1.076 1.086 1.0%-3.9%
1.078 1.078 0.0%-4.6%
1.058 1.060 0.2%<10.1% Design*
1.032 1.038 0.6%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.5 38.361 587.865 0.9387
Operational Flow Rate: 1.1074
%DIFF: -2.00%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
0.00455696
(G-Factor)
(ORIFICE NOT INSTALLED)
C3 "A"
4/11/24
P7953
Isaac Legare
(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)834.9
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)12.7
Correlation 0.99995 Ta (°K)285.9
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)
2.76 24.720 46.168 580.058 0.926 1.092 0.0646
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.092 1.092 0.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.540 38.361 587.865 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.107 -2.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1072
Comments:
C3 "A"
4/11/24
P7953
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.01956 Ta (°C)13.0
Correlation 0.99995 Ta (°K)286.2
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)
open 2.65 24.670 46.075 580.077 0.926 1.071 0.0633
1 2.70 26.620 49.717 576.435 0.921 1.081 0.0639
2 2.66 29.640 55.357 570.794 0.912 1.073 0.0634
3 2.58 33.640 62.828 563.324 0.900 1.057 0.0625
4 2.51 37.380 69.813 556.339 0.889 1.043 0.0616
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)
Difference c Difference
1.071 1.095 2.2% -3.1%
1.081 1.087 0.6%-3.8%
1.073 1.076 0.3%-4.8%
1.057 1.061 0.4%<10.1% Design*
1.043 1.047 0.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.4 38.137 588.014 0.9391
Operational Flow Rate: 1.1104
%DIFF: -1.74%<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"
4/11/24
P7958
Isaac Legare
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)13.0
Correlation 0.99995 Ta (°K)286.2
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)
2.65 24.670 46.075 580.077 0.926 1.071 0.0633
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.071 1.095 2.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.420 38.137 588.014 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.110 -3.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0856
Comments:
C3 "B"
4/11/24
P7958
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.01956 Ta (°C)12.9
Correlation 0.99995 Ta (°K)286.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
open 2.71 24.680 46.094 580.058 0.926 1.082 0.0640
1 2.73 26.420 49.343 576.808 0.921 1.086 0.0642
2 2.68 28.460 53.153 572.998 0.915 1.076 0.0636
3 2.56 31.980 59.727 566.424 0.905 1.053 0.0622
4 2.52 36.470 68.113 558.038 0.891 1.044 0.0618
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)
Difference c Difference
1.082 1.095 1.1% -3.1%
1.086 1.088 0.2%-3.7%
1.076 1.081 0.4%-4.4%
1.053 1.068 1.4%<10.1% Design*
1.044 1.051 0.6%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.5 38.249 587.902 0.9389
Operational Flow Rate: 1.1104
%DIFF: -1.73%<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"
4/11/24
P7959
Isaac Legare
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)12.9
Correlation 0.99995 Ta (°K)286.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.71 24.680 46.094 580.058 0.926 1.082 0.0640
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.082 1.095 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.480 38.249 587.902 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.110 -2.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0977
Comments:
C3 "C"
4/11/24
P7959
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.01956 Ta (°C)13.5
Correlation 0.99995 Ta (°K)286.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
open 2.79 25.360 47.364 578.788 0.924 1.099 0.0649
1 2.79 27.620 51.584 574.567 0.918 1.099 0.0649
2 2.65 29.400 54.909 571.243 0.912 1.072 0.0633
3 2.71 32.570 60.829 565.322 0.903 1.083 0.0640
4 2.65 36.520 68.206 557.945 0.891 1.072 0.0633
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)
Difference c Difference
1.099 1.108 0.8% -1.9%
1.099 1.100 0.1%-2.7%
1.072 1.093 2.0%-3.3%
1.083 1.081 -0.2%<10.1% Design*
1.072 1.066 -0.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.9 38.996 587.155 0.9377
Operational Flow Rate: 1.1251
%DIFF: -0.43%<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"
4/11/24
P7954
Isaac Legare
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)13.5
Correlation 0.99995 Ta (°K)286.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.79 25.360 47.364 578.788 0.924 1.099 0.0649
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.099 1.108 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.880 38.996 587.155 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.125 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1158
Comments:
C3 "D"
4/11/24
P7954
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)834.7
Slope (m)1.04605 Pa(mm Hg)626.1
Intercept (b)-0.01956 Ta (°C)13.7
Correlation 0.99995 Ta (°K)286.9
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 2.62 23.980 44.786 581.290 0.928 1.066 0.0629
1 2.54 25.500 47.625 578.452 0.924 1.050 0.0620
2 2.48 27.800 51.921 574.156 0.917 1.038 0.0613
3 2.43 31.340 58.532 567.544 0.907 1.027 0.0607
4 2.32 35.280 65.891 560.186 0.895 1.004 0.0593
Qa Qa (Sampler) % REF % Design
(Orifice) (G-Factor)
Difference c Difference
1.066 1.096 2.8% -3.0%
1.050 1.091 3.9%-3.5%
1.038 1.082 4.3%-4.2%
1.027 1.069 4.0%<10.1% Design*
1.004 1.054 5.0%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.0 37.428 588.649 0.9402
Operational Flow Rate: 1.1108
%DIFF: -1.70%<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"
4/11/24
P7955
Isaac Legare
(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)834.7
Slope (m)1.04605 Pa(mm Hg)626.1
Intercept (b)-0.0196 Ta (°C)13.7
Correlation 0.99995 Ta (°K)286.9
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)
2.62 23.980 44.786 581.290 0.928 1.066 0.0629
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.066 1.096 2.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.040 37.428 588.649 0.940
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.111 -4.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0795
Comments:
C3 "E"
4/11/24
P7955
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.72 24.920 46.542 567.609 0.924 1.094 0.0647
1 2.71 26.760 49.978 564.172 0.919 1.092 0.0646
2 2.65 29.550 55.189 558.962 0.910 1.080 0.0639
3 2.58 32.660 60.997 553.153 0.901 1.066 0.0631
4 2.47 37.440 69.925 544.226 0.886 1.044 0.0617
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.094 1.135 3.7% 0.4%
1.092 1.107 1.4%-2.0%
1.080 1.097 1.6%-2.9%
1.066 1.086 1.9%<10.1% Design*
1.044 1.069 2.4%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.8 38.847 575.303 0.9367
Operational Flow Rate: 1.1280
%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
4/11/24
A
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.73 24.830 46.374 567.777 0.924 1.096 0.0648
1 2.68 26.800 50.053 564.098 0.919 1.086 0.0643
2 2.62 29.880 55.805 558.345 0.909 1.074 0.0635
3 2.58 32.360 60.437 553.713 0.902 1.066 0.0631
4 2.48 36.100 67.422 546.728 0.890 1.046 0.0619
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.096 1.103 0.6% -2.4%
1.086 1.098 1.1%-2.8%
1.074 1.088 1.3%-3.7%
1.066 1.081 1.4%<10.1% Design*
1.046 1.069 2.2%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.7 38.698 575.453 0.9370
Operational Flow Rate: 1.1160
%DIFF: -1.24%<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
4/11/24
B
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.73 25.210 47.083 567.067 0.923 1.096 0.0648
1 2.75 27.270 50.931 563.220 0.917 1.100 0.0651
2 2.66 29.250 54.629 559.522 0.911 1.082 0.0640
3 2.58 32.630 60.941 553.209 0.901 1.066 0.0631
4 2.43 37.580 70.186 543.964 0.886 1.035 0.0612
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.096 1.105 0.8% -2.2%
1.100 1.098 -0.2%-2.8%
1.082 1.091 0.8%-3.5%
1.066 1.080 1.3%<10.1% Design*
1.035 1.062 2.6%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.8 38.754 575.397 0.9369
Operational Flow Rate: 1.1220
%DIFF: -0.71%<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
4/11/24
C
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.77 24.990 46.673 567.478 0.924 1.104 0.0653
1 2.67 26.360 49.231 564.919 0.920 1.084 0.0641
2 2.59 28.950 54.068 560.082 0.912 1.068 0.0632
3 2.58 32.840 61.334 552.817 0.900 1.066 0.0631
4 2.46 36.010 67.254 546.897 0.890 1.041 0.0616
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.104 1.111 0.6% -1.7%
1.084 1.106 2.0%-2.1%
1.068 1.097 2.7%-2.9%
1.066 1.083 1.6%<10.1% Design*
1.041 1.071 2.8%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.7 38.716 575.434 0.9370
Operational Flow Rate: 1.1260
%DIFF: -0.35%<10.1%
Comments:
*Only 3 points need to be within 10.1% of Design per method and guidance
VFC HIVOL PM10 SAMPLER
CALIBRATION SHEET
Tisch Environmental VFC
Lookup Table
(ORIFICE NOT INSTALLED)
Hi Country
4/11/24
D
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 24.770 46.262 567.889 0.925 1.082 0.0640
1 2.64 26.490 49.474 564.677 0.919 1.078 0.0638
2 2.53 28.720 53.639 560.512 0.913 1.056 0.0625
3 2.45 31.910 59.597 554.554 0.903 1.039 0.0615
4 2.43 36.910 68.935 545.216 0.888 1.035 0.0612
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.082 1.117 3.2% -1.2%
1.078 1.109 2.9%-1.9%
1.056 1.102 4.4%-2.5%
1.039 1.090 4.9%<10.1% Design*
1.035 1.073 3.7%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.5 38.343 575.808 0.9376
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
4/11/24
E
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.73 25.080 46.841 567.310 0.924 1.096 0.0648
1 2.68 27.420 51.211 562.940 0.917 1.086 0.0643
2 2.62 29.810 55.675 558.476 0.909 1.074 0.0635
3 2.57 32.830 61.315 552.836 0.900 1.064 0.0629
4 2.51 36.160 67.534 546.616 0.890 1.052 0.0622
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.096 1.096 0.0% -3.0%
1.086 1.087 0.1%-3.8%
1.074 1.077 0.3%-4.7%
1.064 1.066 0.2%<10.1% Design*
1.052 1.053 0.1%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.8 38.884 575.266 0.9367
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
4/11/24
F
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.75 25.230 47.121 567.030 0.923 1.100 0.0651
1 2.68 27.210 50.819 563.332 0.917 1.086 0.0643
2 2.68 29.240 54.610 559.541 0.911 1.086 0.0643
3 2.58 33.360 62.305 551.846 0.899 1.066 0.0631
4 2.46 37.860 70.709 543.441 0.885 1.041 0.0616
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.100 1.112 1.1% -1.6%
1.086 1.105 1.7%-2.2%
1.086 1.098 1.1%-2.8%
1.066 1.084 1.7%<10.1% Design*
1.041 1.068 2.5%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.9 38.996 575.154 0.9365
Operational Flow Rate: 1.1280
%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
4/11/24
G
Isaac Legare
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.01956 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 2.68 25.100 46.878 567.273 0.924 1.086 0.0643
1 2.67 27.010 50.445 563.705 0.918 1.084 0.0641
2 2.64 29.350 54.815 559.335 0.911 1.078 0.0638
3 2.56 32.790 61.240 552.910 0.900 1.062 0.0628
4 2.41 37.820 70.634 543.516 0.885 1.031 0.0610
Qa Qa (Sampler) % REF % Design
(Orifice) (Lookup)
Difference c Difference
1.086 1.109 2.1% -1.9%
1.084 1.101 1.5%-2.6%
1.078 1.093 1.4%-3.3%
1.062 1.079 1.6%<10.1% Design*
1.031 1.069 3.7%
<7.1% REF
ΔPstg P1 = Pa - ΔPstg P1/Pa
Sampler Calibration Relationship: (mm Hg) (mm Hg) (mm Hg)
Operational Flow Rate 20.8 38.884 575.266 0.9367
Operational Flow Rate: 1.1240
%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
4/11/24
H
Isaac Legare

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

(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)834.9
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)12.7
Correlation 0.99995 Ta (°K)285.9
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)
2.76 24.720 46.168 580.058 0.926 1.092 0.0646
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.092 1.092 0.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.540 38.361 587.865 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.107 -2.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1072
Comments:
C3 "A"
4/11/24
P7953
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)13.0
Correlation 0.99995 Ta (°K)286.2
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)
2.65 24.670 46.075 580.077 0.926 1.071 0.0633
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.071 1.095 2.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.420 38.137 588.014 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.110 -3.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0856
Comments:
C3 "B"
4/11/24
P7958
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)12.9
Correlation 0.99995 Ta (°K)286.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.71 24.680 46.094 580.058 0.926 1.082 0.0640
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.082 1.095 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.480 38.249 587.902 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.110 -2.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0977
Comments:
C3 "C"
4/11/24
P7959
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.8
Slope (m)1.04605 Pa(mm Hg)626.2
Intercept (b)-0.0196 Ta (°C)13.5
Correlation 0.99995 Ta (°K)286.7
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.79 25.360 47.364 578.788 0.924 1.099 0.0649
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.099 1.108 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.880 38.996 587.155 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.125 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1158
Comments:
C3 "D"
4/11/24
P7954
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.7
Slope (m)1.04605 Pa(mm Hg)626.1
Intercept (b)-0.0196 Ta (°C)13.7
Correlation 0.99995 Ta (°K)286.9
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)
2.62 23.980 44.786 581.290 0.928 1.066 0.0629
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.066 1.096 2.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.040 37.428 588.649 0.940
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.111 -4.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0795
Comments:
C3 "E"
4/11/24
P7955
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.1
Slope (m)1.04605 Pa(mm Hg)625.6
Intercept (b)-0.0196 Ta (°C)13.9
Correlation 0.99995 Ta (°K)287.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.73 25.000 46.691 578.935 0.925 1.089 0.0643
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.089 1.093 0.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.600 38.474 587.153 0.939
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.109 -2.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1049
Comments:
C3 "A"
5/10/24
P7953
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.0
Slope (m)1.04605 Pa(mm Hg)625.6
Intercept (b)-0.0196 Ta (°C)14.0
Correlation 0.99995 Ta (°K)287.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.75 24.800 46.318 579.234 0.926 1.093 0.0645
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.093 1.096 0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 586.891 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.111 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1080
Comments:
C3 "B"
5/10/24
P7958
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.0
Slope (m)1.04605 Pa(mm Hg)625.6
Intercept (b)-0.0196 Ta (°C)14.1
Correlation 0.99995 Ta (°K)287.3
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)
2.75 24.800 46.318 579.234 0.926 1.093 0.0645
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.093 1.096 0.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 586.891 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.112 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1082
Comments:
C3 "C"
5/10/24
P7959
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.0
Slope (m)1.04605 Pa(mm Hg)625.6
Intercept (b)-0.0196 Ta (°C)13.6
Correlation 0.99995 Ta (°K)286.8
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)
2.80 25.200 47.065 578.487 0.925 1.102 0.0651
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.102 1.109 0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.900 39.034 586.518 0.938
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.125 -1.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1178
Comments:
C3 "D"
5/10/24
P7954
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)834.0
Slope (m)1.04605 Pa(mm Hg)625.6
Intercept (b)-0.0196 Ta (°C)13.6
Correlation 0.99995 Ta (°K)286.8
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)
2.65 24.100 45.010 580.541 0.928 1.072 0.0633
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.072 1.096 2.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.200 37.726 587.825 0.940
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.110 -3.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0860
Comments:
C3 "E"
5/10/24
P7955
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)835.4
Slope (m)1.04605 Pa(mm Hg)626.6
Intercept (b)-0.0196 Ta (°C)26.0
Correlation 0.99995 Ta (°K)299.2
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)
2.70 23.000 42.956 583.646 0.931 1.104 0.0638
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.104 1.121 1.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
18.530 34.608 591.994 0.945
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.138 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1205
Comments:
C3 "A"
6/6/24
P7953
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)835.4
Slope (m)1.04605 Pa(mm Hg)626.6
Intercept (b)-0.0196 Ta (°C)27.0
Correlation 0.99995 Ta (°K)300.2
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)
2.63 25.960 48.484 578.117 0.923 1.092 0.0630
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.092 1.113 2.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.570 40.285 586.316 0.936
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.130 -2.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1076
Comments:
C3 "B"
6/6/24
P7958
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)835.3
Slope (m)1.04605 Pa(mm Hg)626.5
Intercept (b)-0.0196 Ta (°C)26.0
Correlation 0.99995 Ta (°K)299.2
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)
2.61 26.010 48.578 577.949 0.922 1.086 0.0628
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.086 1.112 2.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.660 40.453 586.073 0.935
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.128 -2.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1014
Comments:
C3 "C"
6/6/24
P7959
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)835.2
Slope (m)1.04605 Pa(mm Hg)626.5
Intercept (b)-0.0196 Ta (°C)26.8
Correlation 0.99995 Ta (°K)300.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.70 26.250 49.026 577.426 0.922 1.106 0.0638
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.106 1.128 2.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.040 41.163 585.289 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.144 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1211
Comments:
C3 "D"
6/6/24
P7954
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)835.2
Slope (m)1.04605 Pa(mm Hg)626.5
Intercept (b)-0.0196 Ta (°C)26.9
Correlation 0.99995 Ta (°K)300.1
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in)(m3/min)
2.60 25.550 47.718 578.733 0.924 1.086 0.0627
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.086 1.112 2.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.480 40.117 586.334 0.936
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.128 -2.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0999
Comments:
C3 "E"
6/6/24
P7955
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.72 24.920 46.542 567.609 0.924 1.094 0.0647
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.094 1.135 3.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.800 38.847 575.303 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.128 -3.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0859
Comments:
Hi Country
4/11/24
A
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.73 24.830 46.374 567.777 0.924 1.096 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.096 1.103 0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.720 38.698 575.453 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.116 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1090
Comments:
Hi Country
4/11/24
B
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.73 25.210 47.083 567.067 0.923 1.096 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.096 1.105 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.750 38.754 575.397 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.122 -1.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1129
Comments:
Hi Country
4/11/24
C
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.77 24.990 46.673 567.478 0.924 1.104 0.0653
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.104 1.111 0.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.730 38.716 575.434 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.126 -1.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1188
Comments:
Hi Country
4/11/24
D
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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 24.770 46.262 567.889 0.925 1.082 0.0640
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.082 1.117 3.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.530 38.343 575.808 0.938
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.132 -3.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0956
Comments:
Hi Country
4/11/24
E
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.73 25.080 46.841 567.310 0.924 1.096 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.096 1.096 0.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.820 38.884 575.266 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.112 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1121
Comments:
Hi Country
4/11/24
F
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.75 25.230 47.121 567.030 0.923 1.100 0.0651
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.100 1.112 1.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.880 38.996 575.154 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.128 -1.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1158
Comments:
Hi Country
4/11/24
G
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)818.8
Slope (m)1.04605 Pa(mm Hg)614.2
Intercept (b)-0.0196 Ta (°C)12.6
Correlation 0.99995 Ta (°K)285.8
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)
2.68 25.100 46.878 567.273 0.924 1.086 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.086 1.109 2.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.820 38.884 575.266 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.124 -2.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1004
Comments:
Hi Country
4/11/24
H
Isaac Legare
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.3
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.8
Correlation 0.99995 Ta (°K)286.0
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)
2.74 25.100 46.878 567.648 0.924 1.098 0.0649
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.098 1.113 1.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.900 39.034 575.492 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.127 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1117
Comments:
Hi Country
5/10/24
A
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.3
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.3
Correlation 0.99995 Ta (°K)285.5
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)
2.62 24.700 46.131 568.395 0.925 1.073 0.0635
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.073 1.102 2.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.500 38.287 576.239 0.938
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.118 -3.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0881
Comments:
Hi Country
5/10/24
B
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.3
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.3
Correlation 0.99995 Ta (°K)285.5
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)
2.73 24.900 46.504 568.021 0.924 1.095 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.095 1.106 1.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.800 38.847 575.678 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.120 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1090
Comments:
Hi Country
5/10/2024
C
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.2
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.2
Correlation 0.99995 Ta (°K)285.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.71 24.700 46.131 568.320 0.925 1.091 0.0646
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.091 1.110 1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 575.790 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.124 -2.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1046
Comments:
Hi Country
5/10/24
D
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.2
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.1
Correlation 0.99995 Ta (°K)285.3
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)
2.70 24.600 45.944 568.506 0.925 1.089 0.0645
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.089 1.115 2.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.300 37.913 576.537 0.938
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.130 -2.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1030
Comments:
Hi Country
5/10/24
E
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.2
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.4
Correlation 0.99995 Ta (°K)285.6
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 24.800 46.318 568.133 0.925 1.094 0.0647
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
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)
20.400 38.100 576.351 0.938
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.111 -1.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1085
Comments:
Hi Country
5/10/24
F
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.2
Slope (m)1.04605 Pa(mm Hg)614.5
Intercept (b)-0.0196 Ta (°C)12.2
Correlation 0.99995 Ta (°K)285.4
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.74 25.100 46.878 567.573 0.924 1.097 0.0649
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.097 1.111 1.3%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.800 38.847 575.603 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.126 -1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1117
Comments:
Hi Country
5/10/24
G
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)819.1
Slope (m)1.04605 Pa(mm Hg)614.4
Intercept (b)-0.0196 Ta (°C)12.3
Correlation 0.99995 Ta (°K)285.5
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)
2.69 24.800 46.318 568.058 0.925 1.087 0.0644
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.087 1.108 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
20.700 38.660 575.715 0.937
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.122 -2.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1008
Comments:
Hi Country
5/10/24
H
Mike Peterson
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)23.8
Correlation 0.99995 Ta (°K)297.0
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.71 25.720 48.036 567.540 0.922 1.112 0.0645
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.112 1.130 1.6%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.440 40.042 575.533 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.145 -0.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1262
Comments:
Hi Country
6/6/24
A
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.71 25.400 47.438 568.137 0.923 1.112 0.0645
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.112 1.121 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.420 40.005 575.571 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.134 -0.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1251
Comments:
Hi Country
6/6/24
B
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.69 25.870 48.316 567.260 0.922 1.108 0.0643
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.108 1.124 1.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.700 40.528 575.048 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.137 -0.8%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1208
Comments:
Hi Country
6/6/2024
C
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.64 25.710 48.017 567.558 0.922 1.098 0.0637
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.098 1.124 2.4%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.230 39.650 575.925 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.143 -1.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1160
Comments:
Hi Country
6/6/24
D
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.56 25.480 47.588 567.988 0.923 1.082 0.0627
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.082 1.143 5.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.270 39.725 575.851 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.147 -4.3%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.0819
Comments:
Hi Country
6/6/24
E
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.61 25.890 48.353 567.222 0.921 1.092 0.0633
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.092 1.113 1.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.580 40.304 575.272 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.128 -2.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1062
Comments:
C32:I50F14D36:I50
Hi Country
6/6/24
F
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.64 25.970 48.503 567.073 0.921 1.098 0.0637
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.098 1.129 2.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.720 40.565 575.010 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.143 -1.7%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1108
Comments:
Hi Country
6/6/24
G
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
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)820.7
Slope (m)1.04605 Pa(mm Hg)615.6
Intercept (b)-0.0196 Ta (°C)24.1
Correlation 0.99995 Ta (°K)297.3
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)
2.62 25.720 48.036 567.540 0.922 1.094 0.0635
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.094 1.126 2.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.580 40.304 575.272 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.140 -2.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1066
Comments:
Hi Country
6/6/24
H
Chris Pos
VFC HIVOL PM10 SAMPLER
FLOW CHECK SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:

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

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants
PERFORMANCE AUDIT OF
PARTICULATE AND METEOROLOGICAL
MONITORING EQUIPMENT AT
RIO TINTO KENNECOTT’S
COPPERTON AND HI-COUNTRY
MONITORING STATIONS
JUNE 2024

Prepared By:

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

June 2024

Project No. 244501.0030

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

List of Tables
Table 2-1 Trinity Performance Audit Equipment .................................................................................... 2-1 
Table 3-1 Instrumentation at Rio Tinto Kennecott’s Copperton C3 and Hi-Country PM10 Monitoring Stations 3-
2 
Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants ii
Table 3-2 Performance Audit Methods and Acceptable Tolerances ......................................................... 3-4 
Table 4-1 Copperton C3 PM10 Hi-Volume Sampler Flow Audit Results ..................................................... 4-1 
Table 4-2 Hi-Country PM10 Hi-Volume Sampler Flow Audit Results .......................................................... 4-3 
Table 5-1 Performance Audit Results of Rio Tinto Kennecott’s Copperton C3 and Hi-Country Monitoring
Stations ............................................................................................................................................. 5-1 

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

On June 12, 2024, Trinity Consultants (Trinity) conducted a quality assurance performance audit of the
Copperton C3 and Hi-Country PM10 and meteorological monitoring equipment to meet Utah Division of Air
Quality (UDAQ) and US EPA quality assurance requirements. This report summarizes the performance audit
activities conducted on the filter based PM10 samplers and meteorological sensors on this day.

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

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

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
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PERFORMANCE AUDIT EQUIPMENT
Presented in Table 2-1 are the Trinity audit reference standard instruments which were used to conduct quality
assurance performance audits.
Table 2-1 Trinity Performance Audit Equipment
Parameter Equipment Serial Number
PM10 Flow Tisch Environmental HiVol Orifice 0379
Wind Direction

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

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

Copies of audit equipment certifications are included in Appendix A.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 3-1
PERFORMANCE AUDIT PROCEDURES
The following sections describe the PM10 sampler and meteorological quality assurance performance
checks conducted by Trinity at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations
on June 12, 2024. The wind sensors were audited at Hi-Country on June 14, 2024.
3.1 Copperton C3 and Hi-Country Monitoring Sites
PM10 measurements are collected every three days for 24 hours, midnight to midnight, in accordance
with US EPA’s three-day sampling schedule at the Copperton C3 and Hi-Country monitoring stations.
The Hi-Country monitoring station is operated in the vicinity of one of the top five highest modeled
ground level PM10 concentrations; the Copperton C3 monitoring station is located near the town of
Copperton, Utah. 10-meter meteorological towers are also installed at the Hi-Country and Copperton
stations which collect continuous measurements of wind speed, wind direction, temperature, relative
humidity, barometric pressure, and precipitation.

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

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

The PM10 and meteorological instrumentation that is installed at the monitoring sites is presented in
Table 3-1.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 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
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
Wind Speed RM Young 05305-AQ 175179
Wind Direction RM Young 05305-AQ 175179
Temperature E+E Elektronic EE 181 164016000096C7
Relative Humidity E+E Elektronic EE 181 164016000096C7
Barometric Pressure Setra 278 7538091
Precipitation Texas Electronics TR525 92237-0822
Hi-Country
PM10 Tisch Environmental Model TE-6070V A
PM10 Tisch Environmental Model TE-6070V B
PM10 Tisch Environmental Model TE-6070V C
PM10 Tisch Environmental Model TE-6070V D
PM10 Tisch Environmental Model TE-6070V E
PM10 Tisch Environmental Model TE-6070V F
PM10 Tisch Environmental Model TE-6070V G
PM10 Tisch Environmental Model TE-6070V H
Wind Speed Met One 010C NA
Wind Direction Met One 020C NA
Temperature E+E Elektronic EE 181-L 192916000065B5
Relative humidity E+E Elektronic EE 181-L 192916000065B5
Barometric Pressure Vaisala PTB101B Z3120033
Precipitation Texas Electronics TR525 92238-0822
3.2 Performance Audit Methods

This section describes the audit methods used to verify the performance of the PM10 and meteorological
monitoring equipment installed at the Copperton C3 and Hi-Country monitoring stations.
3.2.1 PM10
The sampler is audited using an orifice transfer standard that is traceable to a primary standard. The orifice
transfer standard is referenced to 25°C and 760 mmHg. The audit device, whether it be one that uses multi-
hole adapter plates or an adjustable flow restrictor, is connected to a differential pressure gauge or tube
manometer. Flow rates are calculated using the certification equation for the transfer standard.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
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3.2.2 Wind Direction
The orientation of the wind direction sensor at the tower was checked using a professional magnetic compass.
The compass was set using a magnetic declination of 11.0 degrees east of north. In addition, the wind
direction sensor linearity was verified by checking the sensor output at 30-degree increments throughout the
entire 0 to 360-degree range in both clockwise and counterclockwise directions. The sensor starting threshold
was determined by measuring shaft rotational torque using a torque gauge.
3.2.3 Horizontal Wind Speed
The calibration of the wind speed sensor at the tower was verified by applying known revolutions per minute
using a variable speed motor drive. The shaft of the synchronous motor was attached to the bearing shaft of
the anemometer with the prop removed. Synchronous motor speeds were translated into calculated wind
speeds in meters per second using manufacturer's specifications. The sensor response was compared to the
calculated wind speeds. Wind speed sensor shaft rotational torque was measured with a torque gauge to
evaluate the starting threshold.
3.2.4 Temperature
The temperature sensor calibration was verified by direct comparison of sensor outputs to a collocated
calibrated reference standard thermometer at three different temperatures over the measurement range.
3.2.5 Relative Humidity
The relative humidity sensor was audited by comparison of station sensor outputs with a relative humidity
reference sensor collocated at ambient conditions.
3.2.6 Barometric Pressure
The barometric pressure sensor output was verified by comparing the output of a certified reference
barometer with sensor outputs recorded on the data acquisition system.
3.2.7 Precipitation
Precipitation sensor output was audited using a standard burette to add water to the gauge to simulate
rainfall. The volume of water required to produce 10 tips was recorded during three runs making sure that
both sides of the tip bucket were similar. The volume was divided by the area of the gauge opening to
determine the calculated amount of simulated rainfall. This amount was compared with the amount of
precipitation recorded by the station data logger.

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

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
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Table 3-2 Performance Audit Methods and Acceptable Tolerances
Parameter Audit Method Acceptable Tolerances
PM10 Sampler Flow Multi-hole Adapter Plates or
Adjustable Flow Restrictor
<±7.1% of transfer
standard
<±10.1% from design
Wind Direction Orientation plus Linearity
Starting Threshold
±5°
<0.5 m/s
Horizontal Wind Speed Synchronous Motor
Starting Threshold
±.20 m/s
<0.5 m/s
Temperature Collocated Reference
Thermometer Comparison
±0.5°C

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

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 4-1
PERFORMANCE AUDIT RESULTS
The following sections present the June 14, 2024 performance audit results for the PM10 samplers and the
meteorological sensors located at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations.
4.1 Copperton C3 Monitoring Station
The performance audit results for the Copperton monitoring station are summarized below. Copies of the PM10
and meteorological performance audit field data sheets are included in Appendix B.
4.1.1 PM10
On June 12, 2024, the Copperton C3 site volumetric flow controlled high-volume PM10 samplers were audited
using a certified high-volume calibration orifice with a filter mounted in the sampler. The audit flowrate percent
differences using the Qa or actual flowrate method are presented in Table 4-1.
Table 4-1 Copperton C3 PM10 Hi-Volume Sampler Flow Audit Results
Sampler ID Reference
Standard
(m3/min)
Sampler
Flow
(m3/min)
% Difference
(Transfer
Standard)
% Difference
(Design)
A 1.123 1.129 0.5 0.6
B 1.129 1.131 0.2 1.1
C 1.123 1.132 0.8 0.6
D 1.134 1.146 1.0 1.6
E 1.112 1.131 1.7 -0.5

As seen from Table 4-1, all samplers were within the allowable tolerance of <±7.1% of the transfer standard
and within <±10% of the design flow rate and were operating within the allowable average 1.13 m3/minute
flow range.
4.1.2 Wind Direction
The 10-meter wind direction sensor orientation checks indicated that the cross-arm alignment was 0.0 degrees
with reference to true north. The vane was positioned parallel to the crossarm in the 0- and 180-degree
positions and the data system reported 1.0 and 178.0 degrees, respectively. Sensor linearity was checked at
30-degree increments in both clockwise and counterclockwise directions and found to be within 2.2 degrees.
The wind direction sensor orientation plus linearity were 2.2 degrees which are within the acceptable tolerance
of ±5°.

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

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 4-2
4.1.3 Wind Speed
The 10-meter wind speed sensor responses were checked over the range of 0-41 m/s and were identical to
the audit inputs. The allowable tolerances for wind speed are ±0.20 m/s. Shaft rotational torque was <0.20
gm-cm counterclockwise translating to a starting threshold <0.5 m/s which is within the allowable tolerance
of <0.5 m/s.
4.1.4 Temperature
A reference standard digital thermometer was collocated with the tower sensors in water baths and/or at
ambient conditions for intercomparison. Temperature sensor outputs were within a maximum of ±0.1°C of
the reference standard which is within the acceptable tolerance of ±0.5°C.
4.1.5 Relative Humidity
The relative humidity portion of the temperature/relative humidity sensor was checked with a reference sensor
during ambient collocation and showed a maximum percent difference from the reference of 4.0 percent (%).
This is within the allowable tolerance of ±7% relative humidity.
4.1.6 Barometric Pressure
A certified reference barometer was collocated with the site barometric pressure sensor. Sensor output was
within a maximum of 0.1 millibars of the reference which is within the acceptable tolerance of ±3.0 millibars.
4.1.7 Precipitation
Three runs of 10 tips indicated that the rain gauge required an average of 2.5 percent less water to produce
30 tips on the data acquisition system than the calculated calibration. This is within the allowable ±10 percent
tolerance.
4.2 Hi-Country Monitoring Station
The performance audit results for the Hi-Country monitoring station are summarized below. Copies of the
PM10 and meteorological performance audit field data sheets are included in Appendix C.
4.2.1 PM10
On June 12, 2024, the Hi-Country site volumetric flow controlled high-volume PM10 samplers were audited
using a certified high-volume calibration orifice with a filter mounted in the sampler. The audit flowrate percent
differences using the Qa or actual flowrate method are presented in Table 4-2.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 4-3
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 1.119 1.129 0.9 0.1
B 1.119 1.120 0.1 0.1
C 1.117 1.122 0.5 -0.1
D 1.119 1.127 0.7 0.1
E 1.115 1.135 1.8 -0.2
F 1.118 1.116 -0.1 0.0
G 1.128 1.131 0.2 0.9
H 1.123 1.128 0.5 0.4

As seen from Table 4-2, all samplers were within the allowable tolerance of <±7.1% of the transfer standard
and within <±10% of the design flow rate and were operating within the allowable average 1.13 m3/min flow
range.
4.2.2 Wind Direction
The 10-meter wind direction sensor orientation checks indicated that the cross-arm alignment was 359.0
degrees with reference to true north. The vane was positioned parallel to the crossarm in the 0- and 180-
degree positions and the data system reported 1.0 and 180.5 degrees, respectively. Sensor linearity was
checked at 30-degree increments in both clockwise and counterclockwise directions and found to be within
±1.6 degrees. The wind direction sensor orientation plus linearity were ±2.6 degrees which are within the
acceptable tolerance of ±5°.

Sensor shaft rotational torque was <6.0 gm-cm clockwise and counterclockwise, which translates to a starting
threshold of <0.5 m/s. The starting threshold was within the allowable tolerance of <0.5 m/s.
4.2.3 Wind Speed
The 10-meter wind speed sensor responses were checked over the range of 0-49 m/s and were identical to
the audit inputs. The allowable tolerances for wind speed are ±0.20 m/s. Shaft rotational torque was <0.20
gm-cm counterclockwise translating to a starting threshold <0.5 m/s which is within the allowable tolerance
of <0.5 m/s.
4.2.4 Temperature
A reference standard digital thermometer was collocated with th e tower sensors in water baths and at ambient
conditions for intercomparison. Temperature sensor outputs were within ±0.4°C of the reference standard
which is within the acceptable tolerance of ±0.5°C.
4.2.5 Relative Humidity
The relative humidity portion of the temperature/relative humidity sensor was checked with a reference sensor
during ambient collocation and showed a maximum percent difference from the reference of 5.0%. This is
within the allowable tolerance of ±7% relative humidity.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 4-4
4.2.6 Barometric Pressure
A certified reference barometer was collocated with the site barometric pressure sensor. Sensor output was
within a maximum of -0.4 millibars of the reference which is within the acceptable tolerance of ±3.0 millibars.
4.2.7 Precipitation
Three runs of 10 tips indicated that the rain gauge required an average of 1.3 percent less water to produce
30 tips on the data acquisition system than the calculated calibration. This is within the allowable ±10 percent
tolerance.

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants 5-1
CONCLUSION
On June 12 and June 14, 2024, a performance audit was conducted by Trinity on the PM10 samplers and
meteorological sensors at Rio Tinto Kennecott’s Copperton C3 and Hi-Country monitoring stations. Table 5-1
presents the results of this audit.
Table 5-1 Performance Audit Results of Rio Tinto Kennecott’s Copperton C3 and Hi-Country
Monitoring Stations
Parameter Equipment
Manufacturer
Model
Number
Serial Number Audit
Results
Copperton
PM10 Tisch Environmental Model TE-6070V A 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
Wind Speed RM Young 05305-AQ 175179 Pass
Wind Direction RM Young 05305-AQ 175179 Pass
Temperature E+E Elektronic EE 181-L 164016000096C7 Pass
Relative Humidity E+E Elektronic EE 181-L 164016000096C7 Pass
Barometric Pressure Setra 278 7538091 Pass
Precipitation Texas Electronics TR-525 92237-0822 Pass
Hi-Country
PM10 Tisch Environmental Model TE-6070V A Pass
PM10 Tisch Environmental Model TE-6070V B Pass
PM10 Tisch Environmental Model TE-6070V C Pass
PM10 Tisch Environmental Model TE-6070V D Pass
PM10 Tisch Environmental Model TE-6070V E Pass
PM10 Tisch Environmental Model TE-6070V F Pass
PM10 Tisch Environmental Model TE-6070V G Pass
PM10 Tisch Environmental Model TE-6070V H Pass
Wind Speed Met One 010C NA Pass
Wind Direction Met One 020C NA Pass
Temperature E+E Elektronic EE 181-L 192916000065B5 Pass
Relative humidity E+E Elektronic EE 181-L 192916000065B5 Pass
Barometric Pressure Vaisala PTB101B Z3120033 Pass
Precipitation Texas Electronics TR-525 92238-0822 Pass

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

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

Brunton s/n
Model
Date
Location
Declination
Technician(s):
Time
Calculated
Azimuth
Measured
Azimuth
Difference
(Degrees)
15:03 216.4 216.0 0.4
15:16 219.1 219.6 -0.5
15:29 222.3 223.0 -0.7
AVG -0.3
PASS/FAIL PASS Criteria = +/- 1.0 degree
Calculated azimuth angle derived from https://www.suncalc.org
Comments:
Audit
MSI Upper Parking Lot
10.7
Ryan Evans
BRUNTON
CALIBRATION SHEET
2610505086
5006 Metal
1/19/2024

PRESSURE
Calibration Record
Calibration Date 8/7/2023
Sensor Type Vaisala PTB 110
Sensor ID V0920825
Next calibration due 8/7/2024
Procedure:
Reference Device Streamline Pro
Reference Device ID S040205
Location MSI lab
Comments
Technician Ryan Evans
Lab Diff
Date Time Temp C mb
8/7/23 12:20 21.9 1.70
8/7/23 13:55 21.9 1.70
8/7/23 15:45 21.9 1.30
1.57
Calibration Critieria = +/- 3 mb
Adjustment required ?N/A
850.60 852.30
850.20 851.50
Average
Reference Pressure Sensor
mb mb
850.90 852.60
Three readings taken side by side
with MSI reference in ambient
conditions. Then averaged.

RELATIVE HUMIDITY SENSOR
CALIBRATION RECORD
Sensor Manufacturer:VAISALA HMP45AC
Sensor ID:F145005
Sensor Range:0 - 100%
01/18/24
01/18/25
Time:12:00
Location:MSI lab
Reference Device:Vaisala HMK 15 Salt Chambers
Reference Device ID:(LiCL) (MgCL2) (NaCL)
Cole Parmer Thermometer S/N 122171278
Technician:Alex L
Comments Lab temperature = 24.3
Adjustment
Reference Reference
Salt Solution Relative Humidity Observed
From To NaCL / LiCL % Sensor Output Difference
16:00 16:30 LiCl 11.3% 11.5% 0.2%
10:00 10:30 MgCl 32.8% 30.6% -2.2%
11:00 11:30 NaCl 75.3% 74.3% -1.0%
Temperature Reference Sensor
Check Temperature Response Difference
separate sheet Water Bath 0.00
Water Bath 0.00
Water Bath 0.00
Procedure:
Remove sensor cap and insert probe into salt chamber.
After 30 min record value.
Record lab temperature and comparison with HMP sensor using reference thermometer.
Calibration Criteria +/- 3.5% RH
Temperature comparison in ambient and water bath medium with reference until stable.
Calibrated on
Next calibration due
Time

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

(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)833.2
Slope (m)0.91055 Pa(mm Hg)625.0
Intercept (b)-0.0314 Ta (°C)37.0
Correlation 0.99985 Ta (°K)310.2
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)
1.98 25.490 47.606 577.345 0.924 1.123 0.0638
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.123 1.129 0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.000 41.088 583.863 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.143 0.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1365
Comments:
C3 "A"
6/12/24
P7953
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00455696
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)833.2
Slope (m)0.91055 Pa(mm Hg)625.0
Intercept (b)-0.0314 Ta (°C)37.0
Correlation 0.99985 Ta (°K)310.2
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)
2.00 25.530 47.681 577.270 0.924 1.129 0.0641
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.129 1.131 0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.970 41.032 583.919 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.145 1.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1423
Comments:
C3 "B"
6/12/24
P7958
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00638986
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)833.2
Slope (m)0.91055 Pa(mm Hg)625.0
Intercept (b)-0.0314 Ta (°C)37.0
Correlation 0.99985 Ta (°K)310.2
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)
1.98 25.380 47.401 577.551 0.924 1.123 0.0638
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.123 1.132 0.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.880 40.864 584.087 0.935
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.146 0.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1365
Comments:
C3 "C"
6/12/24
P7959
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00676369
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)833.2
Slope (m)0.91055 Pa(mm Hg)625.0
Intercept (b)-0.0314 Ta (°C)37.0
Correlation 0.99985 Ta (°K)310.2
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)
2.02 25.900 48.372 576.579 0.923 1.134 0.0644
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.134 1.146 1.0%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
22.370 41.779 583.172 0.933
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.159 1.6%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1476
Comments:
C3 "D"
6/12/24
P7954
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.02030635
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
(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)833.2
Slope (m)0.91055 Pa(mm Hg)625.0
Intercept (b)-0.0314 Ta (°C)37.0
Correlation 0.99985 Ta (°K)310.2
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)
1.94 25.100 46.878 578.073 0.925 1.112 0.0631
Qa Qa (Sampler) % REF
(Orifice) (G-Factor)
Difference c
1.112 1.131 1.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.920 40.939 584.013 0.934
Qa Qa (Sampler) % Design
(Design) (G-factor)
Difference
1.130 1.143 -0.5%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1238
Comments:
C3 "E"
6/12/24
P7955
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
0.00447091
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:1.5 meters
Sensor s/n:
Sensor Range:mb
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
BAROMETRIC PRESSURE
Adam Lenkowski
600-1100
8/7/2023
05/19/2023Setra
Vaisala
0.1
833.3
833.3
832.8
Average
Audit Criteria: +/- 3mb
Audit INPUT DIFFERENCE
(mb)(mb) (mb)
0.1
0.1
0.1
833.2
833.2
832.7
Audited By:
C3
24-30
Trinity
278
7538091
PTB 110
V0920825
12:50
SENSOR RESPONSE
12:01
12:20
832.4
832.6
832.8
833.0
833.2
833.4 INPUT RESPONSE
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:%
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
Audit Criteria: +/- 7% RH
Colocated in aspirated chamber.
Adam LenkowskiAudited By:
0-100
1/18/2024Vaisala
Average 3.7
12:50 12.0 16.0 4.0
12:01 13.0 17.0 4.0
12:20 13.0 16.0 3.0
F1450005
Audit INPUT SENSOR RESPONSE DIFFERENCE
(%) (%) (%)
EE181
164016000096C7
HMP 45AC
05/19/2023E+E Elektronik
RELATIVE HUMIDITY
C3
24-30
Trinity
0.0
5.0
10.0
15.0
20.0 INPUT RESPONSE
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model:
Sensor Range:°C Sensor Height Serial Number
10 meters 164016000096C7
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
10 METER
RESPONSE DIFF
Time (°C)(°C)(°C)
Audit Criteria: +/- 0.5 deg C
COMMENTS
= cell containing equations
0.03
022322030
-0.1
0.1
36.836.9
20.3 20.4
0.0 0.1 0.1
EE181
-50 to 50 degrees
REOtemp 2/14/2024
TM99A
EE Elektronic 05/19/2023
TEMPERATURE
C3
24-30
Trinity
12:20
Audit INPUT
Adam LenkowskiAudited By:
AVERAGE
12:42
Water baths and/or ambient conditions
12:35
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n: Declination:
Sensor Range:°Alignment:
Vane to Crossarm: Difference:
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Compass:
Audit Device s/n:Torque Device:
INPUT
RESPONSE DIFF TOTAL DIFF RESPONSE DIFF TOTAL DIFF
(°)(°)(°)(°)(°)(°)(°)
North 0/360 1.9 1.9 1.9 0.6 0.6 0.6
30 29.9 -0.1 -0.1 30.8 0.8 0.8
60 60.5 0.5 0.5 60.1 0.1 0.1
East 90 89.8 -0.2 -0.2 89.5 -0.5 -0.5
120 119.5 -0.5 -0.5 119.0 -1.0 -1.0
150 150.6 0.6 0.6 149.4 -0.6 -0.6
South 180 180.8 0.8 0.8 179.9 -0.1 -0.1
210 210.3 0.3 0.3 209.8 -0.2 -0.2
240 239.1 -0.9 -0.9 238.8 -1.2 -1.2
West 270 267.8 -2.2 -2.2 267.8 -2.2 -2.2
300 299.0 -1.0 -1.0 299.4 -0.6 -0.6
330 331.5 1.5 1.5 331.0 1.0 1.0
COMMENTS
= cell containing equations
WIND DIRECTION 10M
Adam Lenkowski
18212
Vane Angle Fixture
05305-AQ
175179
0-360
1/19/2024
05/19/2023RM Young
CLOCKWISE COUNTER-CLOCKWISE
RM Young
< 10 gm-cm
Audited By:
C3
24-30
Trinity
11.5
0.0
Audit Criteria: Alignment with true North plus Linearity: +/- 5 degrees
Starting Threshold: <=0.5m/s
TOTAL DIFF is the total difference when including Orientation and Linearity
<0.5 m/s
0.0
1.0 / 178.0
Brunton 2610505086
RM Young 18331
TOTAL DIFF is the total difference when including
Orientation and Linearity
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:m/s
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model:Torque Device:
Audit Device s/n:
RPM
COMMENTS
= cell containing equations
12.800
0.000
9.216
900 4.608 4.608 0.000
8000 40.960 40.960 0.000
6000 30.720 30.720 0.000
(m/s)
0.000
Adam Lenkowski
20.48020.480
Audit Criteria: +/- 0.20 m/s
0.000
Audited By:
2500 12.800
1800
1.536
3.072
4000
(m/s)
CA03678
05305-AQ
175179
0-60
RM Young
0.2 gm-cm
<0.5 mps
1.536
3.072
9.216
0.000
Prop disc #18310
SENSOR RESPONSE DIFFERENCE
(m/s)
0.000
18802
0.000
WIND SPEED 10M
7/12/2023
05/19/2023RM Young
0.0000
300
C3
24-30
Trinity
Audit INPUT
600
0.000
Audit
SITE NAME Date 06/12/2024 Start Time 11:50
PROJECT Stop Time 12:59
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:36 inches
Sensor s/n: Recording Resolution
Sensor Range:inches
Funnel Diameter:20.3 cm
AUDIT EQUIPMENT Funnel Area (A):324.3 cm2
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
(ml.)
1 cc = 1 ml COMMENTS
Funnel (r)adius = funnel (D)iameter ÷ 2
(A)rea of funnel = π*r2
INPUT = Input (ml) ÷ A ÷ cm to inches
= cell containing equations
Texas Electronics N/A
PRECIPITATION
C3
24-30
Trinity
(inches) (inches) (%)
TR-525 Heated
92237-0822 1 tip = 0.01"
Unlimited
Polylab NA
100 mL burette
NA
Audit INPUT SENSOR RESPONSE DIFFERENCE
81.0 0.098 0.10 1.7%
80.0 0.097 0.10 3.0%
80.0 0.097 0.10 3.0%
Audit Criteria: +/- 10% of input
24hr start= 0.0 end= 0.30
Adam LenkowskiCalibrated By:
Average 0.0975 0.10 2.5%

Rio Tinto Kennecott Copperton and Hi-Country Stations / PM10 and Meteorological June 2024 Performance Audit
Trinity Consultants C
APPENDIX C. PERFORMANCE AUDIT FIELD DATA SHEETS – HI-
COUNTRY
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)22.0
Correlation 0.99985 Ta (°K)295.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.03 24.910 46.523 567.627 0.924 1.119 0.0651
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.119 1.129 0.9%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg) <---lookup
21.360 39.893 574.258 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.141 0.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1311
Comments:
Hi Country
6/12/24
A
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)22.0
Correlation 0.99985 Ta (°K)295.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.03 24.640 46.019 568.132 0.925 1.119 0.0651
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.119 1.120 0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.200 39.594 574.556 0.936 <----Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.132 0.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1312
Comments:
Hi Country
6/12/24
B
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Audible Leak Chk (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)22.0
Correlation 0.99985 Ta (°K)295.2
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)
2.02 25.200 47.065 567.086 0.923 1.117 0.0650
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.117 1.122 0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.410 39.986 574.164 0.935 <----Lookup
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.134 -0.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1285
Comments:
Hi Country
6/12/24
C
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)22.0
Correlation 0.99985 Ta (°K)295.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.03 24.77 46.262 567.889 0.925 1.119 0.0651
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.119 1.127 0.7%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.25 39.688 574.463 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.139 0.1%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1311
Comments:
Hi Country
6/12/24
D
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)24.0
Correlation 0.99985 Ta (°K)297.2
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 24.51 45.776 568.374 0.925 1.115 0.0647
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.115 1.135 1.8%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.12 39.445 574.706 0.936
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.148 -0.2%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1272
Comments:
Hi Country
6/12/24
E
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)24.0
Correlation 0.99985 Ta (°K)297.2
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)
2.01 24.95 46.598 567.553 0.924 1.118 0.0648
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.118 1.116 -0.1%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.52 40.192 573.959 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.128 0.0%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1296
Comments:
Hi Country
6/12/24
F
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)24.0
Correlation 0.99985 Ta (°K)297.2
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 25.20 47.065 567.086 0.923 1.128 0.0655
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.128 1.131 0.2%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.64 40.416 573.735 0.934
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.143 0.9%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1402
Comments:
Hi Country
6/12/24
G
Adam L.
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Lookup Table
Sampler Model
Sampler Location
Date
Serial Number
Technician
Audit Orifice S/N 0379 Leak Performed (Pass/Fail)Pass
Certification Date 1/18/2024 Pressure (mb)818.8
Slope (m)0.91055 Pa(mm Hg)614.2
Intercept (b)-0.0314 Ta (°C)24.0
Correlation 0.99985 Ta (°K)297.2
Orifice ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa Qa (Orifice) Qa (Orifice)
ΔH2O (in H20) (mm Hg) (mm Hg) (mm Hg)
flow rate b [Ta]1/2
(in) LOOKUP
(m3/min)
2.03 25.00 46.691 567.459 0.924 1.123 0.0651
Qa Qa (Sampler) % REF
(Orifice) (Lookup)
Difference c
1.123 1.128 0.5%
(<7.1% REF)
ΔPstg ΔPstg P1 = Pa - ΔPstg P1/Pa
(in H20) (mm Hg) (mm Hg) (mm Hg)
21.47 40.098 574.052 0.935
Qa Qa (Sampler) % Design
(Design) (Lookup)
Difference
1.130 1.140 0.4%
(<10.1% Design)
Qa (corrected sampler) = Qa(sampler)*((100-%REF Difference)/100)
Qa (corrected sampler) = 1.1348
Comments:
Hi Country
6/12/24
H
Adam L
VFC HIVOL PM10 SAMPLER
FLOW AUDIT SHEET
Tisch Environmental VFC
ORIFICE INSTALLED:
ORIFICE NOT INSTALLED:
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 9:01
PROJECT Stop Time 10:58
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:1.5 meters
Sensor s/n:
Sensor Range:mb
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
BAROMETRIC PRESSURE
Adam Lenkowski
600-1060
8/7/2023
5/19/2023Vaisala
Vaisala
-0.3
818.7
818.8
818.6
Average
Audit Criteria: +/- 3mb
Audit INPUT DIFFERENCE
(mb)(mb) (mb)
-0.4
-0.1
-0.3
819.1
818.9
818.9
Audited By:
Hi Country
24-30
Trinity
PTB101B
Z3120033
PTB 110
V0920825
10:25
SENSOR RESPONSE
09:15
09:40
818.2
818.4
818.6
818.8
819.0
819.2 INPUT RESPONSE
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 09:01
PROJECT Stop Time 10:58
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:%
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
Time
COMMENTS
= cell containing equations
Audit Criteria: +/- 7% RH
Adam LenkowskiAudited By:
0-100
1/18/2024Vaisala
Average 4.3
10:25 33.0 38.0 5.0
09:15 27.0 31.0 4.0
09:41 31.0 35.0 4.0
F1450005
Audit INPUT SENSOR RESPONSE DIFFERENCE
(%) (%) (%)
EE181
192916000065B5
HMP 45AC
5/19/2023E+E Elektronik
RELATIVE HUMIDITY
Hi Country
24-30
Trinity
0.0
10.0
20.0
30.0
40.0 INPUT RESPONSE
Audit SHEET
SITE NAME Date 06/12/2024 Start Time 09:01
PROJECT Stop Time 10:58
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model:
Sensor Range:°C Sensor Ht Serial Number
10 192916000065B5
AUDIT EQUIPMENT
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
10 METER
RESPONSE DIFF
Time (°C) (°C) (°C)
Audit Criteria: +/- 0.5 deg C
COMMENTS
= cell containing equations
022322030
-0.1
0.2
24.925.0
0.1 0.3
0.440.0
09:15
Audit INPUT
09:59
EE181
-50 to 50 degrees
REOtemp 2/14/2024
TM99A
EE Elektronic 5/19/2023
TEMPERATURE
Hi Country
24-30
Trinity
Audited By:
AVERAGE
10:06
0.2
40.4
Adam Lenkowski
Water baths and/or aspirated ambient conditions.
Audit SHEET
SITE NAME Date 06/14/2024 Start Time 08:55
PROJECT Stop Time 09:20
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n: Declination:
Sensor Range:°Alignment:
Vane to Crossarm: Difference:
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model: Compass:
Audit Device s/n:Torque Device:
INPUT
RESPONSE DIFF TOTAL DIFF RESPONSE DIFF TOTAL DIFF
(°) (°) (°) (°) (°) (°) (°)
North 0/360 0.2 0.2 -0.8 0.2 0.2 -0.8
30 28.4 -1.6 -2.6 28.4 -1.6 -2.6
60 58.8 -1.2 -2.2 58.5 -1.5 -2.5
East 90 88.9 -1.1 -2.1 89.0 -1.0 -2.0
120 118.9 -1.1 -2.1 118.9 -1.1 -2.1
150 148.9 -1.1 -2.1 148.9 -1.1 -2.1
South 180 178.6 -1.4 -2.4 179.6 -0.4 -1.4
210 209.0 -1.0 -2.0 209.1 -0.9 -1.9
240 239.1 -0.9 -1.9 239.2 -0.8 -1.8
West 270 270.0 0.0 -1.0 270.0 0.0 -1.0
300 300.8 0.8 -0.2 300.8 0.8 -0.2
330 330.6 0.6 -0.4 331.6 1.6 0.6
COMMENTS
= cell containing equations
WIND DIRECTION 10M
Adam Lenkowski
040
Direction Template
020C
n/a
0-360
1/19/2024
5/19/2023Met One
CLOCKWISE COUNTER-CLOCKWISE
Tail Replaced
Met One
<6 gm-cm
Audited By:
Hi Country
24-30
Trinity
11.0
-1.0
Audit Criteria: Alignment with true North plus Linearity: +/- 5 degrees
Starting Threshold: <=0.5m/s
TOTAL DIFF is the total difference when including Orientation and Linearity
<0.5 m/s
359.0
1.0 / 180.5
Brunton 2610505086
Torque Watch 366-1M 4689
TOTAL DIFF is the total difference when including
Orientation and Linearity
Audit SHEET
SITE NAME Date 06/14/2024 Start Time 08:55
PROJECT Stop Time 09:20
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:10 meters
Sensor s/n:
Sensor Range:m/s
Rotational Torque:
AUDIT EQUIPMENT Starting Threshold:
Audit Device: Certification Date:
Audit Device Model:Torque Device:
Audit Device s/n:
RPM
COMMENTS
= cell containing equations
32.25
0.00
24.26
600 16.26 16.26 0.00
1800 48.24 48.24 0.00
(m/s)
0.00
Adam Lenkowski
40.2540.25
Audit Criteria: +/- 0.20 m/s
0.00
Audited By:
1200 32.25
900
5.60
8.27
1500
(m/s)
CA3678
010C
n/a
0 - 50
RM Young
< 0.2 gm-cm
<0.5 mps
5.60
8.27
24.26
0.00
Torque Watch 366-3M 4690
SENSOR RESPONSE DIFFERENCE
(m/s)
0.00
18802
0.00
WIND SPEED 10M
7/11/2023
5/19/2023Met One
0.000
200
Hi Country
24-30
Trinity
Audit INPUT
300
0.00
Audit
SITE NAME Date 06/12/2024 Start Time 09:01
PROJECT Stop Time 10:58
SITE OPERATOR
Sensor Mfg: Last Audit Date:
Sensor Model: Sensor Height:36 inches
Sensor s/n: Recording Resolution
Sensor Range:inches
Funnel Diameter:20.3 cm
AUDIT EQUIPMENT Funnel Area (A):324.3 cm2
Audit Device: Certification Date:
Audit Device Model:
Audit Device s/n:
(ml.)
1 cc = 1 ml COMMENTS
Funnel (r)adius = funnel (D)iameter ÷ 2
(A)rea of funnel = π*r2
INPUT = Input (ml) ÷ A ÷ cm to inches
= cell containing equations
Audit Criteria: +/- 10% of input
24hr start= 0.0 end= 0.30
Screen Removed for Winter
Adam LenkowskiCalibrated By:
Average 0.0987 0.10 1.3%
81.0 0.098 0.10 1.7%
82.0 0.100 0.10 0.5%
81.0 0.098 0.10 1.7%
(inches) (inches) (%)
TR-525 Heated
92238-0822 1 tip = 0.01"
Unlimited
Polylab NA
100 mL burette
NA
Audit INPUT SENSOR RESPONSE DIFFERENCE
Texas Electronics N/A
PRECIPITATION
Hi Country
24-30
Trinity