ML25224A161

Response to Requests for Additional Information Regarding the Clinch River Nuclear Site Construction Permit Application

ML25224A161
Person / Time
Site:	05000615
Issue date:	08/12/2025
From:	Hunnewell S Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
NNP-25-006
Download: ML25224A161 (1)

Text

{{#Wiki_filter:1101 Market Street, Chattanooga, Tennessee 37402 NNP-25-006 August 12, 2025 10 CFR 50.34 10 CFR 51.45 10 CFR 51.50 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Clinch River Project NRC Docket No. 50-0615

Subject:

Response to Requests for Additional Information Regarding the Clinch River Nuclear Site Construction Permit Application References

1. Tennessee Valley Authority, Submittal of the Environmental Report in Support of the Clinch River Nuclear Site Construction Permit Application, dated April 28, 2025 (ML25118A209)

2. U.S. Nuclear Regulatory Commission, Acceptance for Docketing of Part One of the Application for a Construction Permit at the Clinch River Nuclear Site, dated June 12, 2025 (ML25156A058)

3. U.S. Nuclear Regulatory Commission, Clinch River Nuclear Site Environmental Report Audit Plan, dated July 10, 2025 (ML25189A385)

4. U.S. Nuclear Regulatory Commission, Requests for Additional Information Regarding the Clinch River Nuclear Site Construction Permit Application (Docket Number 50-0615), dated July 25, 2025 (ML25204A049)

By letter dated April 28, 2025 (ML25118A209) the Tennessee Valley Authority (TVA) submitted the first part of an application for a construction permit to the U.S. Nuclear Regulatory Commission (NRC), including the Clinch River Nuclear (CRN) Site Environmental Report (Reference 1). In a letter dated June 12, 2025, the NRC stated it had accepted Part 1 of TVAs construction permit application for review (Reference 2). NRC staff are currently conducting an audit of the CRN Site Environmental Report (Reference 3). During the environmental audit, the NRC staff requested additional information described in of Reference 4. This letter transmits TVAs response to the NRC Requests for Additional Information (RAI).

U.S. Nuclear Regulatory Commission NNP-25-007 Page 2 August 12, 2025 During the environmental audit conducted pursuant to Reference 3, the NRC staff issued requests for confirmatory information (RCIs) in References 4 and 5. This letter transmits TVAs response to the NRC RCIs. This letter makes no regulatory commitments and no revisions to any existing regulatory commitments. Please address any questions regarding this application to Mr. Ray Schiele, Senior Manager Licensing, New Nuclear Program, at rjschiele@tva.gov. I declare under penalty of perjury that the foregoing is true and correct. Executed on this 12th day of August 2025. Respectfully, Scott W. Hunnewell, Vice President, New Nuclear Program

Enclosure:

TVA Response to NRC Requests for Confirmatory Information cc (with Enclosure): Gregory T. Bowman, Acting Director, Office of Nuclear Reactor Regulation (NRR) Jeremy T. Bowen, Acting Deputy Office Director for New Reactors, NRR Michele M. Sampson, Director, Division of New and Renewed Licenses Chris M. Regan, Director, Division of Rulemaking, Environmental, and Financial Support Samuel S. Lee, Deputy Director, Division of New and Renewed Licenses John M. Moses, Deputy Director, Division of Rulemaking, Environmental, and Financial Support Mahmoud MJ Jardaneh, Branch Chief, New Reactor Licensing Branch Daniel Barnhurst, Branch Chief, Environmental Review New Reactors Branch Allen H. Fetter, NRC Project Manager, Clinch River Nuclear Site Madelyn Nagel, Project Manager, Environmental Review of New Reactors Branch Hunnewell, Scott William Digitally signed by Hunnewell, Scott William Date: 2025.08.12 12:52:42 -04'00'

U.S. Nuclear Regulatory Commission NNP-25-006 Page 3 August 12, 2025 IZ:RJS bcc (w/o Enclosure): E. Andrews G. A. Boerschig R. M. Deacy R. E. Detwiler J. E. Dufner M. J. Durr D. C. Erb J. H. Holcomb J. Hopson K. D. Hulvey M. Hunter D. Moul B. J. McDermott E. C. Meade M. M. Rasmussen T. Rausch R. J. Schiele M. Sivaraman W. P. Trombley ECM

TVA Response to NRC Requests for Additional Information

TVA Response to NRC Requests for Additional Information Question Number: RAI-MET-1 Receipt Date: 7/25/2025 Question:

1. Provide estimated maximum direct and indirect annual air emissions for criteria air pollutants and its precursors associated with preconstruction and NRC-authorized construction activities of CRN-1 including, but not limited to, emissions from on-road construction vehicles, worker vehicles, delivery vehicles, nonroad construction equipment, and fugitive dust associated with land clearing, grading, excavation, blasting, haul roads, quarry operations, and material processing, handling, and removal. The response should provide fugitive dust and criteria air pollutants emissions and its precursors from quarry operations. As part of the response, provide all assumptions and calculations.

2. Provide estimated annual greenhouse gas emissions associated with quarry operations. As part of the response, provide all assumptions and calculations.

3. Provide estimated annual air emissions for criteria air pollutants and its precursors associated with vehicular traffic (e.g., worker vehicles, delivery vehicles) during operations of CRN-1. As part of the response, provide all assumptions and calculations.

Response

Section 176(c) of the Clean Air Act requires that Federal actions comply with State implementation Plans designed to attain and maintain the National Ambient Air Quality Standards (NAAQS). Federal agencies are required to prepare a conformity determination if an applicability analysis shows that a proposed action occurs in a NAAQS nonattainment area or maintenance area, and the total of the actions direct and indirect emissions of criteria pollutants and their precursors would exceed threshold (i.e., de minimis) emissions levels (40 CFR 93.153(b)). Each county in the Clinch River Nuclear (CRN) Site Region of Influence is in maintenance for one or more criteria pollutants. In the Environmental Report (ER), TVA provided qualitative assessments of emissions from construction activities, quarry operations, and motor vehicles. Based on the assessments, the ER concluded that the impact on air quality due to these activities is SMALL, and the same as in the U.S. Nuclear Regulatory Commission (NRC) Early Site Permit Final Environmental Impact Statement. During the ER Audit discussions with the NRC, it was requested that TVA provide a quantitative estimate of air emissions to assess whether criteria pollutants would exceed the de minimis emissions levels in 40 CFR 93.153(b). Based on the estimate, provided as Attachment 1 to this response, TVA has determined that there are no emissions that would exceed the de minimis emissions levels provided in 40 CFR 93.153(b). Therefore, the estimated emissions levels do not represent new and significant information. ER Update on Docket: None.

TVA Response to NRC Request for Additional Information Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 1 NOTE All calculations are presented in the calculation tables included with this document. Additionally, tables showing formulas used to determine emissions are also included. The following information is provided to describe the calculations and the assumptions used to develop the emission estimates. RAI-MET-1 Item 1 Due to the amount of information requested in Item 1 above, and a) in order to model air emissions from construction operation, vehicle traffic, and quarry operation, and b) provide clarity in the response, the request in Item 1 above is addressed in separate calculations.

1. Emissions Related to Construction Activities at the CRN-1 Site The first set of calculations addresses annual air emissions for criteria air pollutants and its precursors associated with preconstruction and NRC-authorized construction activities of CRN-1 including, but not limited to, emissions from on-road construction vehicles, worker vehicles, delivery vehicles, nonroad construction equipment.

In order to model air emissions from construction, construction activities are divided into two time periods:

1. First two years of construction - during this time the construction is ramping up, the number of workers is smaller than it would be at peak construction time, and the quarry is being operated.

2. Construction after year two - during this time construction activities are at their peak, the number of workers is at the maximum, and the quarry is no longer in operation.

First Two Years of Construction Equipment and Construction Vehicle Use Construction emissions associated with activities on the CRN-1 site are related to the operation of construction equipment and construction vehicles. The following information and assumptions are used to determine the emissions of criteria air pollutants related to construction equipment and construction vehicles:

a. The list of equipment/vehicles and associated equipment/vehicles emission factors was developed and presented in the CRN Early Site Permit Application (CRN ESPA) Table 4.4-2. The same list of equipment/vehicles and emission factors was used in this calculation.

b. Values for break horsepower (bhp) were also developed for the CRN ESPA, and were presented as a Statement of Fact, Preconstruction and Construction Equipment Emission Factors.

c. During the first two years of construction, it is estimated that the equipment/vehicles will operate on average 12 hours per day for 365 days per year. Total hours are used in lieu of number of equipment/vehicles, as the total number of equipment/vehicles is unknown at this time.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 2

d. Load factors for the equipment are from Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling, EPA-420-R-10-016, NR-005d, July 2010.

Example Calculation for First Two Years of Construction Equipment and Construction Vehicle Use The example calculation shows the VOC emissions associated with the use of a concrete pump:

a. Emission factor for VOC: 0.41 gr/bhp-hr

b. Break horsepower for concrete pump: 80 bhp

c. Number of hours equipment/vehicles used per year: 12 hr/dayx365 days/yr = 4,380 hours/yr

d. Load factor for concrete pump: 0.43

e. There are 454 grams per pound (conversion factor)

f.

There are 2,000 pounds per ton (conversion factor) VOC emissions, concrete pump (tpy) = 0.41 gr/bhp-hrx80 bhpx4,380 hr/yrx0.43÷454÷2000 = 0.07 Emissions of criteria air pollutants for all equipment/vehicles are calculated similarly to the example above. Total emissions of criteria air pollutants associated with construction equipment and construction vehicles for the first two years of construction are shown below: Total Emissions by Pollutant - First Two Years of Construction Equipment Use Pollutant Emissions (tpy) VOC 1.54 CO 7.36 PM10 0.89 PM2.5 0.84 SO2 0.03 NOx 20.08 Worker and Delivery Vehicles Traffic for First Two Years of Construction Emissions associated with vehicle traffic are directly proportional to the number of workers commuting to CRN-1. The following information and assumptions are used to determine emissions of criteria air pollutants related to vehicle traffic:

a. Pollutant emission factors are found in MOVES3 Vehicle Operation Emission Factors, Argonne National Laboratory, October 2021. It was conservatively assumed that all vehicles are from model year 2020 (i.e. at least seven years old at the projected time of construction start). The above reference does not contain an emission factor for SO2, therefore the SO2 emission factor from the CRN ESPA Table 4.4-3 is used.

b. The number of vehicles is estimated based on the number of workers commuting to the site. For the first two years of construction the maximum number of workers is 700, which occurs approximately 24 months after construction activities commence.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 3 However, this number of workers will conservatively be used as the number of workers for the entire two-year period. Since it is impossible to ascertain the number of deliveries, this conservative number of workers will account for any deliveries to the site.

c. It is conservatively assumed that each of the 700 workers will drive their own vehicle (i.e. no carpooling). The type of vehicle is split evenly between cars and passenger trucks (350 cars, 350 passenger trucks).

d. The number of miles per year is based on a round trip of 40 miles per vehicle, which is the same number of miles used in COL/ESP-ISG-026, Table A-2 for the estimation of greenhouse gases from vehicles.

Example Calculation for Vehicle Traffic for First Two Years of Construction The example calculation shows VOC emissions associated with cars:

a. VOC emission factor for cars: 0.154 gr/vehicle-mi

b. Number of cars: 350

c. Number of miles round trip per year, per car: 40 milesx365 days = 14,600 miles per car, per year

d. There are 454 grams per pound (conversion factor)

e. There are 2,000 pounds per ton (conversion factor)

VOC emissions for cars (tpy) = 0.154 gr/veh-mix350 carsx14,600 mi/veh/yr÷454÷2,000 = 0.87 Emissions of criteria air pollutants associated with vehicle traffic are calculated similarly to the example above. Total emissions of criteria air pollutants associated with vehicle traffic for the first two years of construction are shown below: Total Emissions by Pollutant - Vehicle Traffic for First Two Years of Construction Pollutant Emissions (tpy) VOC 1.75 CO 21.68 PM10 0.39 PM2.5 0.08 SO2 0.03 NOx 0.39 Construction Equipment and Construction Vehicle Use After Year Two After the first two years of construction, it is assumed that construction activities are at their peak and remain at their peak for the duration of construction. The information and assumptions used to determine the emissions for the first two years of construction remain the same except the number of hours of operation. It is conservatively assumed that equipment/vehicles will operate 24 hours per day, 7 days per week, 365 days per year (8,760 hours per year). Total hours are used in lieu of number of equipment/vehicles, as the total number of equipment/vehicles is unknown at this time.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 4 Example Calculation for Construction Equipment and Construction Vehicles After Year Two An example calculation is not provided for brevity, as it is the same example calculation used previously with one difference: the number of hours is 8,760 instead of 4,380. Total emissions of air pollutants associated with construction equipment and construction vehicles for construction activities after year two are shown below: Total Emissions by Pollutant - Construction Equipment Use After Year Two Pollutant Emissions (tpy) VOC 3.08 CO 14.73 PM10 1.78 PM2.5 1.68 SO2 0.05 NOx 40.16 Worker and Delivery Vehicles Traffic After Year Two As discussed above, the emissions associated with vehicle traffic are directly proportional to the number of workers commuting to CRN-1. The information and assumptions used to determine emissions of criteria air pollutants related to vehicle traffic are the same as the ones presented above for the first two years of construction, except for the number of vehicles. It is conservatively assumed that there will be 1,000 workers after year two of construction. This is the maximum number of workers which would be on site, and it occurs for only a short period of time before it starts to ramp down. However, this number of workers will conservatively be used as the number of workers for the remainder of construction after year two. Since it is impossible to ascertain the number of deliveries, this conservative number of workers will account for any deliveries to the site. Example Calculation for Vehicle Traffic After Year Two An example calculation is not provided for brevity, as it is the same example calculation used previously with one difference: the number of workers is 1,000 instead of 700. Total emissions of criteria air pollutants associated with vehicle traffic after year two are shown below: Total Emissions by Pollutant - Vehicle Traffic After Year Two Pollutant Emissions (tpy) VOC 2.50 CO 30.97 PM10 0.56 PM2.5 0.12 SO2 0.04 NOx 0.55

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 5

2. Fugitive Dust Associated with Construction Activities and Quarry Operations The second calculation addresses fugitive dust associated with land clearing, grading, excavation, blasting, haul roads, quarry operations, and material processing, handling, and removal. The following information and assumptions are used to determine fugitive dust emissions:

a. The emission factor for fugitive dust emissions for the above referenced activities is found in AP-42, Section 13.2.3, Heavy Construction Operations. The emission factor for dust, described as total suspended solids (TSP) in the document, is 1.2 tons/acre/month.

b. The construction acreage is conservatively assumed to be no more than 100 acres at any one time. This conservative estimate is based on 70 acres of site work, 20 acres for quarry, and an additional 10 acres for added conservatism. The total acreage of the site is approximately 370 acres. Quarry operations would cease after year two of construction.

c. Construction activity would take place for 12 months every year for the duration of construction.

d. Wet suppression would be employed as a dust control measure. The control efficiency of wet suppression is 95%.

Using the information and assumptions described above, the total fugitive emission can be calculated: Fugitive dust emissions, TSP (tpy) = 1.2 tons/acre/monthx100 acresx12 monthsx(1-0.95) = 72 The maximum amount of TSP (dust) generated would occur during the first two years of construction when the quarry is in operation. After year two, the 20 acres associated with the quarry would no longer be generating dust, and 57.6 tpy of dust would be generated from construction activities.

3. Emissions Related to Quarry Operations The third set of calculations addresses criteria air pollutant emissions associated with quarry operations and material delivery (i.e. emissions related to haul trucks used to deliver fill material from the quarry to the CRN-1 site). Similar to calculations for construction equipment/construction vehicles use and vehicles traffic discussed above, two sets of calculations are developed.

Equipment and Heavy Machinery Use for Quarry Operations Quarry operations emissions are related to the operation of equipment and heavy machinery at the quarry. The following information and assumptions are used to determine the emissions of criteria air pollutants related to quarry operations:

a. A list of anticipated equipment and heavy machinery (typical or equivalent) was developed for the quarry operations. The list included anticipated number of each piece of equipment and heavy machinery.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 6

b. Values for break horsepower (bhp) were developed for the CRN ESPA, and were presented as a Statement of Fact, Preconstruction and Construction Equipment Emission Factors.

c. Hours of operation were assumed to be 10 hours per day. The quarry would operate 5 days per week, 52 weeks per year.

d. Load factors for the equipment are from Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling, EPA-420-R-10-016, NR-005d, July 2010.

Example Calculation for Quarry Operations The example calculation shows VOC emissions associated with the use of excavators:

a. Emission factor for VOC: 0.19 gr/bhp-hr

b. Break horsepower for excavator: 350 bhp

c. Number of hours used per year: 10 hrsx5 days/weekx52 weeks/yr = 2,600 hrs/yr

d. Load factor for excavator: 0.59

e. There are 454 grams per pound (conversion factor)

f.

There are 2,000 pounds per ton (conversion factor)

g. Number of excavators: 2 VOC emissions, excavators (tpy) = (0.19 gr/bhp-hrx350 bhpx2,600 hrs/yrx0.59÷454÷2000)x2 =

0.22 Emissions of criteria air pollutants for all quarry equipment/heavy machinery are calculated similarly to the example above. Total emissions of criteria pollutants associated with quarry equipment/heavy machinery are shown below: Total Emissions by Pollutant - Quarry Equipment/Heavy Machinery Pollutant Emissions (tpy) VOC 1.30 CO 6.35 PM10 0.73 PM2.5 0.69 SO2 0.02 NOx 15.87 Material Delivery from Quarry Operations Fill material from the quarry will have to be delivered to the CRN-1 site. The following estimate assumes an offsite quarry which would require hauling of fill material to the site. This assumption is bounding for emissions related to material delivery, as an onsite quarry would mean that the delivery trucks would not have to travel long distances. The following information and assumptions are used to determine the emissions of criteria air pollutants related to fill material delivery:

a. Emission factors for short-haul trucks are from MOVES3 Vehicle Operation Emission Factors, Argonne National Laboratory, October 2021. Conservatively, emission factors

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 7 for truck model year 2020 are used, which means that the trucks would be at least seven years old by the time fill material delivery commences. The above reference does not contain an emission factor for SO2, therefore the SO2 emission factor from the CRN ESPA Table 4.4-3 is used.

b. Number of truck deliveries is assumed to be 80 per day based on quarry loading rates, entry to site, unloading, and exiting the site.

c. Number of miles per year is based on a per vehicle round trip of 100 miles and 260 days per year operation (5 days per week).

Example Calculation for Material Delivery from Quarry Operations The following example calculation shows VOC emissions associated with material delivery from quarry operations:

a. VOC emission factor for short-haul trucks: 0.131 gr/vehicle-mi

b. Number of trucks: 80

c. Number of miles round trip per year, per truck: 100 milesx260 days = 26,000 miles per truck, per year

d. There are 454 grams per pound (conversion factor)

e. There are 2,000 pounds per ton (conversion factor)

VOC emissions for short-haul trucks (tpy) = 0.131 gr/veh-mix80 trucksx26,000 mi/veh/yr÷454÷2,000 = 0.3 Emissions of criteria air pollutants associated with material delivery are calculated similarly to the example above. Total emissions of criteria air pollutants associated with material delivery from the quarry are shown below: Total Emissions by Pollutant - Material Delivery from Quarry Operations Pollutant Emissions (tpy) VOC 0.3 CO 7.38 PM10 0.27 PM2.5 0.04 SO2 0.007 NOx 4.8

4. Total Emissions During Construction and Comparison to 40 CFR 93.153 Presented below are total emissions by criteria air pollutant for the first two years of construction, and construction after year two. Additionally, values from 40 CFR 93.153 Criteria for Maintenance Areas are presented to allow for comparison between construction emissions and regulatory criteria.

1. Emissions for the first two years of construction include emissions from construction equipment/heavy machinery, vehicles, quarry operation, and quarry material deliveries.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 8

2. Emissions for construction after year two include emissions from construction equipment/heavy machinery and vehicles; the quarry is not in operation after year two.

Comparison of Emissions During Construction to Regulatory Criteria Pollutant Construction First Two Years (tpy) Construction after Year Two (tpy) 40 CFR 93.153 Criteria for Maintenance Area (tpy) VOC 4.90 5.58 50/100 CO 42.77 45.70 100 PM10 2.28 2.34 100 PM2.5 1.66 1.80 100 SO2 0.08 0.09 100 NOx 41.14 40.71 100 RAI-MET-1 Item 2 The calculation described below addresses the estimated annual greenhouse gas emissions associated with quarry operations. Greenhouse gas (GHG) emissions associated with quarry operations are generated from a) quarry activities, including emissions from quarry workforce, and b) from deliveries of quarry material to the CRN-1 site. GHG Emissions from Quarry Activities and Workforce The following information and assumptions are used to determine GHG emissions generated through quarry activities and operational workforce:

a. Quarry operations GHG emissions are assumed to be 12,000 MT CO2 equivalent for a 7-year period. This is an assumed value based on the largest GHG emission estimate presented in COL/ESP-ISG-026, Appendix A, Table A-1. On a per year basis GHG emissions are 1,714 MT CO2 equivalent.

b. Quarry workforce GHG emissions are scaled to CRN-1 GHG emissions during plant operation, based on the number of quarry workers compared to CRN-1 operational workforce. CRN-1 GHG emissions from the operational workforce are 41,000 MT CO2 equivalent based on a 40-year plant life, which means that 1,025 MT CO2 are emitted per year. The CRN-1 operations workforce is 205 workers. The quarry is projected to have 30 workers. Therefore, the GHG emissions associated with the quarry workforce are: 1,025 MT CO2 equivalent x 30 ÷ 205 = 150 MT CO2 equivalent

c. Total GHG emissions from quarry operations and workforce are 1,714 + 150 = 1,864 MT CO2 per year GHG Emissions from Deliveries of Quarry Material to CRN-1 The following information and assumptions are used to determine GHG emissions generated from deliveries of quarry material to CRN-1:

a. The GHG emission factor for heavy bulk trucks is from The Green Freight Handbook, Environmental Defense Fund. The emission factor is 2,000 gr CO2/mile.

RAI-MET-1, Attachment 1 - Estimate of Emissions from Construction Activities, Quarry Operations, and Motor Vehicles 9

b. Number of deliveries (80), round trip miles (100), and number of days of operation (260) are discussed above in Material Delivery from Quarry Operations.

c. There are 1,000,000 grams in a metric ton (conversion factor).

d. GHG emissions per year from quarry material deliveries are:

2,000x80x100x260÷1,000,000 = 4,160 MT CO2 per year Total GHG Emissions Associated with Quarry 1,864 + 4,160 = 6,024 MT CO2 per year RAI-MET-1 Item 3 The calculation described below addresses the estimated annual air emissions for criteria air pollutants and its precursors associated with vehicular traffic (e.g., worker vehicles, delivery vehicles) during operations of CRN-1. The information and assumptions used to determine emissions of criteria air pollutants related to vehicle traffic during operations of CRN-1 are the same as the ones described in Worker and Delivery Vehicles Traffic for First Two Years of Construction, with one exception: the number of workers needed for operation of CRN-1 is 200 instead of the 700 workers need for construction. An example calculation was provided previously, no additional examples are provided for brevity. Total emissions of criteria air pollutants associated with vehicle traffic during CRN-1 operation are shown below: Total Emissions by Pollutant - Vehicle Traffic During CRN-1 Operation Pollutant Emissions (tpy) VOC 0.5 CO 6.19 PM10 0.11 PM2.5 0.02 SO2 0.01 NOx 0.11

RAI-MET-1, Attachment 1 - Tables Construction Equipment Years 1-2 Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Concrete Pump 0.41 80 4380 0.43 0.07 Concrete Pump 0.32 80 4380 0.43 0.05 Portable Generator 0.19 154 4380 0.43 0.06 Portable Generator 0.23 154 4380 0.43 0.07 Lifts 0.85 150 4380 0.21 0.13 Lifts 0.42 150 4380 0.21 0.06 Off-Highway Trucks 0.19 300 4380 0.59 0.16 Off-Highway Trucks 0.14 300 4380 0.59 0.12 Tractor 0.77 256 4380 0.21 0.20 Tractor 0.27 256 4380 0.21 0.07 Dozer 0.35 210 4380 0.59 0.21 Dozer 0.14 210 4380 0.59 0.08 Front End Loader 0.77 180 4380 0.21 0.14 Front End Loader 0.27 180 4380 0.21 0.05 Excavator 0.19 350 4380 0.59 0.19 Excavator 0.14 350 4380 0.59 0.14 Crane 0.19 350 4380 0.43 0.14 Crane 0.1 350 4380 0.43 0.07 Welding Machine 0.41 49 4380 0.68 0.07 Welding Machine 0.27 49 4380 0.68 0.04 Motor Grader 0.35 180 4380 0.59 0.18 Motor Grader 0.14 180 4380 0.59 0.07 Total VOC tpy 1.54 Total PM2.5 tpy 0.84 Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Concrete Pump 3.99 80 4380 0.43 0.66 Concrete Pump 0.005 80 4380 0.43 0.001 Portable Generator 1.00 154 4380 0.43 0.32 Portable Generator 0.005 154 4380 0.43 0.002 Lifts 2.46 150 4380 0.21 0.37 Lifts 0.006 150 4380 0.21 0.001 Off-Highway Trucks 1.42 300 4380 0.59 1.21 Off-Highway Trucks 0.005 300 4380 0.59 0.004 Tractor 2.11 256 4380 0.21 0.55 Tractor 0.006 256 4380 0.21 0.002 Dozer 1.26 210 4380 0.59 0.75 Dozer 0.005 210 4380 0.59 0.003 Front End Loader 2.11 180 4380 0.21 0.38 Front End Loader 0.006 180 4380 0.21 0.001 Excavator 1.42 350 4380 0.59 1.41 Excavator 0.005 350 4380 0.59 0.005 Crane 0.92 350 4380 0.43 0.67 Crane 0.005 350 4380 0.43 0.004 Welding Machine 2.39 49 4380 0.68 0.38 Welding Machine 0.006 49 4380 0.68 0.001 Motor Grader 1.26 180 4380 0.59 0.65 Motor Grader 0.005 180 4380 0.59 0.003 Total CO tpy 7.36 Total SO2 tpy 0.03 Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Concrete Pump 0.33 80 4380 0.43 0.05 Concrete Pump 4.49 80 4380 0.43 0.75 Portable Generator 0.24 154 4380 0.43 0.08 Portable Generator 2.52 154 4380 0.43 0.80 Lifts 0.43 150 4380 0.21 0.07 Lifts 4.56 150 4380 0.21 0.69 Off-Highway Trucks 0.15 300 4380 0.59 0.13 Off-Highway Trucks 4.15 300 4380 0.59 3.54 Tractor 0.28 256 4380 0.21 0.07 Tractor 4.45 256 4380 0.21 1.15 Dozer 0.15 210 4380 0.59 0.09 Dozer 3.82 210 4380 0.59 2.28 Front End Loader 0.28 180 4380 0.21 0.05 Front End Loader 4.45 180 4380 0.21 0.81 Excavator 0.15 350 4380 0.59 0.15 Excavator 4.15 350 4380 0.59 4.13 Crane 0.11 350 4380 0.43 0.08 Crane 4.38 350 4380 0.43 3.18 Welding Machine 0.28 49 4380 0.68 0.05 Welding Machine 4.82 49 4380 0.68 0.77 Motor Grader 0.15 180 4380 0.59 0.08 Motor Grader 3.82 180 4380 0.59 1.96 Total PM10 tpy 0.89 Total NOx tpy 20.08 Notes (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application (3) During the first two years it is estimated that the equipment will operate on average 12 hours per day, 365 days per year. Total hours are used in lieu of number of pieces of equipment (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420-R-10-016, NR-005d, July 2010 8/8/2025 1 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Construction Equipment Years 1-2 Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Concrete Pump 0.41 80 4380 0.43 =B2*C2*D2*E2/454/2000 Concrete Pump 0.32 80 4380 0.43 =I2*J2*K2*L2/454/2000 Portable Generator 0.19 154 4380 0.43 =B3*C3*D3*E3/454/2000 Portable Generator 0.23 154 4380 0.43 =I3*J3*K3*L3/454/2000 Lifts 0.85 150 4380 0.21 =B4*C4*D4*E4/454/2000 Lifts 0.42 150 4380 0.21 =I4*J4*K4*L4/454/2000 Off-Highway Trucks 0.19 300 4380 0.59 =B5*C5*D5*E5/454/2000 Off-Highway Trucks 0.14 300 4380 0.59 =I5*J5*K5*L5/454/2000 Tractor 0.77 256 4380 0.21 =B6*C6*D6*E6/454/2000 Tractor 0.27 256 4380 0.21 =I6*J6*K6*L6/454/2000 Dozer 0.35 210 4380 0.59 =B7*C7*D7*E7/454/2000 Dozer 0.14 210 4380 0.59 =I7*J7*K7*L7/454/2000 Front End Loader 0.77 180 4380 0.21 =B8*C8*D8*E8/454/2000 Front End Loader 0.27 180 4380 0.21 =I8*J8*K8*L8/454/2000 Excavator 0.19 350 4380 0.59 =B9*C9*D9*E9/454/2000 Excavator 0.14 350 4380 0.59 =I9*J9*K9*L9/454/2000 Crane 0.19 350 4380 0.43 =B10*C10*D10*E10/454/2000 Crane 0.1 350 4380 0.43 =I10*J10*K10*L10/454/2000 Welding Machine 0.41 49 4380 0.68 =B11*C11*D11*E11/454/2000 Welding Machine 0.27 49 4380 0.68 =I11*J11*K11*L11/454/2000 Motor Grader 0.35 180 4380 0.59 =B12*C12*D12*E12/454/2000 Motor Grader 0.14 180 4380 0.59 =I12*J12*K12*L12/454/2000 Total VOC tpy =SUM(F2:F12) Total PM2.5 tpy =SUM(M2:M12) Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Concrete Pump 3.99 80 4380 0.43 =B16*C16*D16*E16/454/2000 Concrete Pump 0.005 80 4380 0.43 =I16*J16*K16*L16/454/2000 Portable Generator 1 154 4380 0.43 =B17*C17*D17*E17/454/2000 Portable Generator 0.005 154 4380 0.43 =I17*J17*K17*L17/454/2000 Lifts 2.46 150 4380 0.21 =B18*C18*D18*E18/454/2000 Lifts 0.006 150 4380 0.21 =I18*J18*K18*L18/454/2000 Off-Highway Trucks 1.42 300 4380 0.59 =B19*C19*D19*E19/454/2000 Off-Highway Trucks 0.005 300 4380 0.59 =I19*J19*K19*L19/454/2000 Tractor 2.11 256 4380 0.21 =B20*C20*D20*E20/454/2000 Tractor 0.006 256 4380 0.21 =I20*J20*K20*L20/454/2000 Dozer 1.26 210 4380 0.59 =B21*C21*D21*E21/454/2000 Dozer 0.005 210 4380 0.59 =I21*J21*K21*L21/454/2000 Front End Loader 2.11 180 4380 0.21 =B22*C22*D22*E22/454/2000 Front End Loader 0.006 180 4380 0.21 =I22*J22*K22*L22/454/2000 Excavator 1.42 350 4380 0.59 =B23*C23*D23*E23/454/2000 Excavator 0.005 350 4380 0.59 =I23*J23*K23*L23/454/2000 Crane 0.92 350 4380 0.43 =B24*C24*D24*E24/454/2000 Crane 0.005 350 4380 0.43 =I24*J24*K24*L24/454/2000 Welding Machine 2.39 49 4380 0.68 =B25*C25*D25*E25/454/2000 Welding Machine 0.006 49 4380 0.68 =I25*J25*K25*L25/454/2000 Motor Grader 1.26 180 4380 0.59 =B26*C26*D26*E26/454/2000 Motor Grader 0.005 180 4380 0.59 =I26*J26*K26*L26/454/2000 Total CO tpy =SUM(F16:F26) Total SO2 tpy =SUM(M16:M26) Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Concrete Pump 0.33 80 4380 0.43 =B30*C30*D30*E30/454/2000 Concrete Pump 4.49 80 4380 0.43 =I30*J30*K30*L30/454/2000 Portable Generator 0.24 154 4380 0.43 =B31*C31*D31*E31/454/2000 Portable Generator 2.52 154 4380 0.43 =I31*J31*K31*L31/454/2000 Lifts 0.43 150 4380 0.21 =B32*C32*D32*E32/454/2000 Lifts 4.56 150 4380 0.21 =I32*J32*K32*L32/454/2000 Off-Highway Trucks 0.15 300 4380 0.59 =B33*C33*D33*E33/454/2000 Off-Highway Trucks 4.15 300 4380 0.59 =I33*J33*K33*L33/454/2000 Tractor 0.28 256 4380 0.21 =B34*C34*D34*E34/454/2000 Tractor 4.45 256 4380 0.21 =I34*J34*K34*L34/454/2000 Dozer 0.15 210 4380 0.59 =B35*C35*D35*E35/454/2000 Dozer 3.82 210 4380 0.59 =I35*J35*K35*L35/454/2000 Front End Loader 0.28 180 4380 0.21 =B36*C36*D36*E36/454/2000 Front End Loader 4.45 180 4380 0.21 =I36*J36*K36*L36/454/2000 Excavator 0.15 350 4380 0.59 =B37*C37*D37*E37/454/2000 Excavator 4.15 350 4380 0.59 =I37*J37*K37*L37/454/2000 Crane 0.11 350 4380 0.43 =B38*C38*D38*E38/454/2000 Crane 4.38 350 4380 0.43 =I38*J38*K38*L38/454/2000 Welding Machine 0.28 49 4380 0.68 =B39*C39*D39*E39/454/2000 Welding Machine 4.82 49 4380 0.68 =I39*J39*K39*L39/454/2000 Motor Grader 0.15 180 4380 0.59 =B40*C40*D40*E40/454/2000 Motor Grader 3.82 180 4380 0.59 =I40*J40*K40*L40/454/2000 Total PM10 tpy =SUM(F30:F40) Total NOx tpy =SUM(M30:M40) Notes (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420-R-10-016, NR-005d, July 2010 (3) During the first two years it is estimated that the equipment will operate on average 12 hours per day, 365 days per year. Total hours are used in lieu of number of pieces of equipment (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application 8/8/2025 2 of 20

RAI-MET-1, Attachment 1 - Tables Construction Equipment Year 3 Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Concrete Pump 0.41 80 8760 0.43 0.14 Concrete Pump 0.32 80 8760 0.43 0.11 Portable Generator 0.19 154 8760 0.43 0.12 Portable Generator 0.23 154 8760 0.43 0.15 Lifts 0.85 150 8760 0.21 0.26 Lifts 0.42 150 8760 0.21 0.13 Off-Highway Trucks 0.19 300 8760 0.59 0.32 Off-Highway Trucks 0.14 300 8760 0.59 0.24 Tractor 0.77 256 8760 0.21 0.40 Tractor 0.27 256 8760 0.21 0.14 Dozer 0.35 210 8760 0.59 0.42 Dozer 0.14 210 8760 0.59 0.17 Front End Loader 0.77 180 8760 0.21 0.28 Front End Loader 0.27 180 8760 0.21 0.10 Excavator 0.19 350 8760 0.59 0.38 Excavator 0.14 350 8760 0.59 0.28 Crane 0.19 350 8760 0.43 0.28 Crane 0.1 350 8760 0.43 0.15 Welding Machine 0.41 49 8760 0.68 0.13 Welding Machine 0.27 49 8760 0.68 0.09 Motor Grader 0.35 180 8760 0.59 0.36 Motor Grader 0.14 180 8760 0.59 0.14 Total VOC tpy 3.08 Total PM2.5 tpy 1.68 Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Concrete Pump 3.99 80 8760 0.43 1.32 Concrete Pump 0.005 80 8760 0.43 0.002 Portable Generator 1.00 154 8760 0.43 0.64 Portable Generator 0.005 154 8760 0.43 0.003 Lifts 2.46 150 8760 0.21 0.75 Lifts 0.006 150 8760 0.21 0.002 Off-Highway Trucks 1.42 300 8760 0.59 2.42 Off-Highway Trucks 0.005 300 8760 0.59 0.009 Tractor 2.11 256 8760 0.21 1.09 Tractor 0.006 256 8760 0.21 0.003 Dozer 1.26 210 8760 0.59 1.51 Dozer 0.005 210 8760 0.59 0.006 Front End Loader 2.11 180 8760 0.21 0.77 Front End Loader 0.006 180 8760 0.21 0.002 Excavator 1.42 350 8760 0.59 2.83 Excavator 0.005 350 8760 0.59 0.010 Crane 0.92 350 8760 0.43 1.34 Crane 0.005 350 8760 0.43 0.007 Welding Machine 2.39 49 8760 0.68 0.77 Welding Machine 0.006 49 8760 0.68 0.002 Motor Grader 1.26 180 8760 0.59 1.29 Motor Grader 0.005 180 8760 0.59 0.005 Total CO tpy 14.73 Total SO2 tpy 0.05 Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Concrete Pump 0.33 80 8760 0.43 0.11 Concrete Pump 4.49 80 8760 0.43 1.49 Portable Generator 0.24 154 8760 0.43 0.15 Portable Generator 2.52 154 8760 0.43 1.61 Lifts 0.43 150 8760 0.21 0.13 Lifts 4.56 150 8760 0.21 1.39 Off-Highway Trucks 0.15 300 8760 0.59 0.26 Off-Highway Trucks 4.15 300 8760 0.59 7.09 Tractor 0.28 256 8760 0.21 0.15 Tractor 4.45 256 8760 0.21 2.31 Dozer 0.15 210 8760 0.59 0.18 Dozer 3.82 210 8760 0.59 4.57 Front End Loader 0.28 180 8760 0.21 0.10 Front End Loader 4.45 180 8760 0.21 1.62 Excavator 0.15 350 8760 0.59 0.30 Excavator 4.15 350 8760 0.59 8.27 Crane 0.11 350 8760 0.43 0.16 Crane 4.38 350 8760 0.43 6.36 Welding Machine 0.28 49 8760 0.68 0.09 Welding Machine 4.82 49 8760 0.68 1.55 Motor Grader 0.15 180 8760 0.59 0.15 Motor Grader 3.82 180 8760 0.59 3.91 Total PM10 tpy 1.78 Total NOx tpy 40.16 Notes (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application (3) During years 3 through 7 it is estimated that the equipment will operate 24/7/365. Total hours are used in lieu of number of pieces of equipment (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420-R-10-016, NR-005d, July 2010 8/8/2025 3 of 20

RAI-MET-1, Atachment 1 - Tables Formulas, Construction Equipment Year 3 Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Concrete Pump 0.41 80 8760 0.43 =B2*C2*D2*E2/454/2000 Concrete Pump 0.32 80 8760 0.43 =I2*J2*K2*L2/454/2000 Portable Generator 0.19 154 8760 0.43 =B3*C3*D3*E3/454/2000 Portable Generator 0.23 154 8760 0.43 =I3*J3*K3*L3/454/2000 Lifts 0.85 150 8760 0.21 =B4*C4*D4*E4/454/2000 Lifts 0.42 150 8760 0.21 =I4*J4*K4*L4/454/2000 Off-Highway Trucks 0.19 300 8760 0.59 =B5*C5*D5*E5/454/2000 Off-Highway Trucks 0.14 300 8760 0.59 =I5*J5*K5*L5/454/2000 Tractor 0.77 256 8760 0.21 =B6*C6*D6*E6/454/2000 Tractor 0.27 256 8760 0.21 =I6*J6*K6*L6/454/2000 Dozer 0.35 210 8760 0.59 =B7*C7*D7*E7/454/2000 Dozer 0.14 210 8760 0.59 =I7*J7*K7*L7/454/2000 Front End Loader 0.77 180 8760 0.21 =B8*C8*D8*E8/454/2000 Front End Loader 0.27 180 8760 0.21 =I8*J8*K8*L8/454/2000 Excavator 0.19 350 8760 0.59 =B9*C9*D9*E9/454/2000 Excavator 0.14 350 8760 0.59 =I9*J9*K9*L9/454/2000 Crane 0.19 350 8760 0.43 =B10*C10*D10*E10/454/2000 Crane 0.1 350 8760 0.43 =I10*J10*K10*L10/454/2000 Welding Machine 0.41 49 8760 0.68 =B11*C11*D11*E11/454/2000 Welding Machine 0.27 49 8760 0.68 =I11*J11*K11*L11/454/2000 Motor Grader 0.35 180 8760 0.59 =B12*C12*D12*E12/454/2000 Motor Grader 0.14 180 8760 0.59 =I12*J12*K12*L12/454/2000 Total VOC tpy =SUM(F2:F12) Total PM2.5 tpy =SUM(M2:M12) Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Concrete Pump 3.99 80 8760 0.43 =B16*C16*D16*E16/454/2000 Concrete Pump 0.005 80 8760 0.43 =I16*J16*K16*L16/454/2000 Portable Generator 1 154 8760 0.43 =B17*C17*D17*E17/454/2000 Portable Generator 0.005 154 8760 0.43 =I17*J17*K17*L17/454/2000 Lifts 2.46 150 8760 0.21 =B18*C18*D18*E18/454/2000 Lifts 0.006 150 8760 0.21 =I18*J18*K18*L18/454/2000 Off-Highway Trucks 1.42 300 8760 0.59 =B19*C19*D19*E19/454/2000 Off-Highway Trucks 0.005 300 8760 0.59 =I19*J19*K19*L19/454/2000 Tractor 2.11 256 8760 0.21 =B20*C20*D20*E20/454/2000 Tractor 0.006 256 8760 0.21 =I20*J20*K20*L20/454/2000 Dozer 1.26 210 8760 0.59 =B21*C21*D21*E21/454/2000 Dozer 0.005 210 8760 0.59 =I21*J21*K21*L21/454/2000 Front End Loader 2.11 180 8760 0.21 =B22*C22*D22*E22/454/2000 Front End Loader 0.006 180 8760 0.21 =I22*J22*K22*L22/454/2000 Excavator 1.42 350 8760 0.59 =B23*C23*D23*E23/454/2000 Excavator 0.005 350 8760 0.59 =I23*J23*K23*L23/454/2000 Crane 0.92 350 8760 0.43 =B24*C24*D24*E24/454/2000 Crane 0.005 350 8760 0.43 =I24*J24*K24*L24/454/2000 Welding Machine 2.39 49 8760 0.68 =B25*C25*D25*E25/454/2000 Welding Machine 0.006 49 8760 0.68 =I25*J25*K25*L25/454/2000 Motor Grader 1.26 180 8760 0.59 =B26*C26*D26*E26/454/2000 Motor Grader 0.005 180 8760 0.59 =I26*J26*K26*L26/454/2000 Total CO tpy =SUM(F16:F26) Total SO2 tpy =SUM(M16:M26) Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Concrete Pump 0.33 80 8760 0.43 =B30*C30*D30*E30/454/2000 Concrete Pump 4.49 80 8760 0.43 =I30*J30*K30*L30/454/2000 Portable Generator 0.24 154 8760 0.43 =B31*C31*D31*E31/454/2000 Portable Generator 2.52 154 8760 0.43 =I31*J31*K31*L31/454/2000 Lifts 0.43 150 8760 0.21 =B32*C32*D32*E32/454/2000 Lifts 4.56 150 8760 0.21 =I32*J32*K32*L32/454/2000 Off-Highway Trucks 0.15 300 8760 0.59 =B33*C33*D33*E33/454/2000 Off-Highway Trucks 4.15 300 8760 0.59 =I33*J33*K33*L33/454/2000 Tractor 0.28 256 8760 0.21 =B34*C34*D34*E34/454/2000 Tractor 4.45 256 8760 0.21 =I34*J34*K34*L34/454/2000 Dozer 0.15 210 8760 0.59 =B35*C35*D35*E35/454/2000 Dozer 3.82 210 8760 0.59 =I35*J35*K35*L35/454/2000 Front End Loader 0.28 180 8760 0.21 =B36*C36*D36*E36/454/2000 Front End Loader 4.45 180 8760 0.21 =I36*J36*K36*L36/454/2000 Excavator 0.15 350 8760 0.59 =B37*C37*D37*E37/454/2000 Excavator 4.15 350 8760 0.59 =I37*J37*K37*L37/454/2000 Crane 0.11 350 8760 0.43 =B38*C38*D38*E38/454/2000 Crane 4.38 350 8760 0.43 =I38*J38*K38*L38/454/2000 Welding Machine 0.28 49 8760 0.68 =B39*C39*D39*E39/454/2000 Welding Machine 4.82 49 8760 0.68 =I39*J39*K39*L39/454/2000 Motor Grader 0.15 180 8760 0.59 =B40*C40*D40*E40/454/2000 Motor Grader 3.82 180 8760 0.59 =I40*J40*K40*L40/454/2000 Total PM10 tpy =SUM(F30:F40) Total NOx tpy =SUM(M30:M40) Notes (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application (3) During years 3 through 7 it is estimated that the equipment will operate 24/7/365. Total hours are used in lieu of number of pieces of equipment (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420-R-10-016, NR-005d, July 2010 8/8/2025 4 of 20

RAI-MET-1, Attachment 1 - Tables Vehicle Emissions Years 1-2 Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 350 14600 0.87 Passenger Truck 0.157 350 14600 0.88 Total VOC tpy 1.75 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 350 14600 8.25 Passenger Truck 2.386 350 14600 13.43 Total CO tpy 21.68 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 350 14600 0.20 Passenger Truck 0.035 350 14600 0.20 Total PM10 tpy 0.39 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 350 14600 0.045 Passenger Truck 0.007 350 14600 0.039 Total PM2.5 tpy 0.08 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 350 14600 0.01 Passenger Truck 0.003 350 14600 0.02 Total SO2 tpy 0.03 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 350 14600 0.22 Passenger Truck 0.03 350 14600 0.17 Total NOx tpy 0.39 Notes (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used (2) Number of vehicles based on estimated work force of 700 people during first two years of construction. Vehicle type split evenly between cars and trucks. 8/8/2025 5 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Vehicle Emissions Years 1-2 Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 350 =40*365 =B2*C2*D2/454/2000 Passenger Truck 0.157 350 =40*365 =B3*C3*D3/454/2000 Total VOC tpy =E2+E3 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 350 =40*365 =B7*C7*D7/454/2000 Passenger Truck 2.386 350 =40*365 =B8*C8*D8/454/2000 Total CO tpy =E7+E8 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 350 =40*365 =B12*C12*D12/454/2000 Passenger Truck 0.035 350 =40*365 =B13*C13*D13/454/2000 Total PM10 tpy =E12+E13 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 350 =40*365 =B17*C17*D17/454/2000 Passenger Truck 0.007 350 =40*365 =B18*C18*D18/454/2000 Total PM2.5 tpy =E17+E18 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 350 =40*365 =B22*C22*D22/454/2000 Passenger Truck 0.003 350 =40*365 =B23*C23*D23/454/2000 Total SO2 tpy =E22+E23 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 350 =40*365 =B27*C27*D27/454/2000 Passenger Truck 0.03 350 =40*365 =B28*C28*D28/454/2000 Total NOx tpy =E27+E28 Notes (2) Number of vehicles based on estimated work force of 700 people during first two years of construction. Vehicle type split evenly between cars and trucks. (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 6 of 20

RAI-MET-1, Attachment 1 -Tables Vehicle Emissions Year 3 Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 500 14600 1.24 Passenger Truck 0.157 500 14600 1.26 Total VOC tpy 2.50 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 500 14600 11.79 Passenger Truck 2.386 500 14600 19.18 Total CO tpy 30.97 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 500 14600 0.28 Passenger Truck 0.035 500 14600 0.28 Total PM10 tpy 0.56 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 500 14600 0.064 Passenger Truck 0.007 500 14600 0.056 Total PM2.5 tpy 0.12 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 500 14600 0.016 Passenger Truck 0.003 500 14600 0.024 Total SO2 tpy 0.04 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 500 14600 0.31 Passenger Truck 0.03 500 14600 0.24 Total NOx tpy 0.55 Notes (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used (2) Number of vehicles based on estimated work force of 1000 people during years 2 through 7 of construction. Vehicle type split evenly between cars and trucks. 8/8/2025 7 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Vehicle Emissions Year 3 Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 500 =40*365 =B2*C2*D2/454/2000 Passenger Truck 0.157 500 =40*365 =B3*C3*D3/454/2000 Total VOC tpy =E2+E3 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 500 =40*365 =B7*C7*D7/454/2000 Passenger Truck 2.386 500 =40*365 =B8*C8*D8/454/2000 Total CO tpy =E7+E8 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 500 =40*365 =B12*C12*D12/454/2000 Passenger Truck 0.035 500 =40*365 =B13*C13*D13/454/2000 Total PM10 tpy =E12+E13 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 500 =40*365 =B17*C17*D17/454/2000 Passenger Truck 0.007 500 =40*365 =B18*C18*D18/454/2000 Total PM2.5 tpy =E17+E18 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 500 =40*365 =B22*C22*D22/454/2000 Passenger Truck 0.003 500 =40*365 =B23*C23*D23/454/2000 Total SO2 tpy =E22+E23 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 500 =40*365 =B27*C27*D27/454/2000 Passenger Truck 0.03 500 =40*365 =B28*C28*D28/454/2000 Total NOx tpy =E27+E28 Notes (2) Number of vehicles based on estimated work force of 1000 people during years 2 through 7 of construction. Vehicle type split evenly between cars and trucks. (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 8 of 20

RAI-MET-1, Attachment 1 - Tables Fugitive Dust Heavy Construction Operations, AP-42 Section 13.2.3 Inputs Total Suspended Solids (TSP) Emissions: E = 1.2 tons/acre/month of activity Construction acreage1 = 100 Months of activity = 12 Dust control measure = wet suppression Control efficiency = 95% Uncontrolled emissions of TSP (tpy) 1440 Controlled emissions of TSP (tpy) 72 (1) Conservative estimate for construction acreage based on 70 acres of site work, 20 acres for the quarry, and 10 acres as additional conservatism. Total site acreage is approximately 370 acres. It is assumed that only 70 acres or less would be worked on at any one time. 8/8/2025 9 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Fugutive Dust Heavy Construction Operations, AP-42 Section 13.2.3 Inputs Total Suspended Solids (TSP) Emissions: E = Construction acreage1 = 100 Months of activity = 12 Dust control measure = wet suppression Control efficiency = 0.95 Uncontrolled emissions of TSP (tpy) =1.2*B5*B6 Controlled emissions of TSP (tpy) =B10*(1-B8) 1.2 tons/acre/month of activity (1) Conservative estimate for construction acreage based on 70 acres of site work, 20 acres for the quarry, and 10 acres as additional conservatism. Total site acreage is approximately 370 acres. It is assumed that only 70 acres or less would be worked on at any one time. 8/8/2025 10 of 20

RAI-MET-1, Attachment 1 - Tables Construction Equipment Quarry Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Pump (2ea) 0.41 80 2600 0.43 0.08 Pump (2ea) 0.32 80 2600 0.43 0.06 Lifts (1ea) 0.85 150 2600 0.21 0.15 Lifts (1ea) 0.42 150 2600 0.21 0.08 Off-Highway Trucks (7ea) 0.19 300 2600 0.59 0.19 Off-Highway Trucks (7ea) 0.14 300 2600 0.59 0.14 Tractor (2ea) 0.77 256 2600 0.21 0.24 Tractor (2ea) 0.27 256 2600 0.21 0.08 Dozer (1ea) 0.35 210 2600 0.59 0.25 Dozer (1ea) 0.14 210 2600 0.59 0.10 Front End Loader (4ea) 0.77 180 2600 0.21 0.17 Front End Loader (4ea) 0.27 180 2600 0.21 0.06 Excavator (2ea) 0.19 350 2600 0.59 0.22 Excavator (2ea) 0.14 350 2600 0.59 0.17 Total VOC tpy 1.30 Total PM2.5 tpy 0.69 Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Pump (2ea) 3.99 80 2600 0.43 0.79 Pump (2ea) 0.005 80 2600 0.43 0.001 Lifts (1ea) 2.46 150 2600 0.21 0.44 Lifts (1ea) 0.006 150 2600 0.21 0.001 Off-Highway Trucks (7ea) 1.42 300 2600 0.59 1.44 Off-Highway Trucks (7ea) 0.005 300 2600 0.59 0.005 Tractor (2ea) 2.11 256 2600 0.21 0.65 Tractor (2ea) 0.006 256 2600 0.21 0.002 Dozer (1ea) 1.26 210 2600 0.59 0.89 Dozer (1ea) 0.005 210 2600 0.59 0.004 Front End Loader (4ea) 2.11 180 2600 0.21 0.46 Front End Loader (4ea) 0.006 180 2600 0.21 0.001 Excavator (2ea) 1.42 350 2600 0.59 1.68 Excavator (2ea) 0.005 350 2600 0.59 0.006 Total CO tpy 6.35 Total SO2 tpy 0.02 Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Pump (2ea) 0.33 80 2600 0.43 0.07 Pump (2ea) 4.49 80 2600 0.43 0.88 Lifts (1ea) 0.43 150 2600 0.21 0.08 Lifts (1ea) 4.56 150 2600 0.21 0.82 Off-Highway Trucks (7ea) 0.15 300 2600 0.59 0.15 Off-Highway Trucks (7ea) 4.15 300 2600 0.59 4.21 Tractor (2ea) 0.28 256 2600 0.21 0.09 Tractor (2ea) 4.45 256 2600 0.21 1.37 Dozer (1ea) 0.15 210 2600 0.59 0.11 Dozer (1ea) 3.82 210 2600 0.59 2.71 Front End Loader (4ea) 0.28 180 2600 0.21 0.06 Front End Loader (4ea) 4.45 180 2600 0.21 0.96 Excavator (2ea) 0.15 350 2600 0.59 0.18 Excavator (2ea) 4.15 350 2600 0.59 4.91 Total PM10 tpy 0.73 Total NOx tpy 15.87 Notes (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application (3) Hours of equipment use are estimated based on 10 hours per day, 260 days per year (5 days per week schedule). (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420--R-10-016, NR-005d, July 2010 8/8/2025 11 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Construction Equipment Quarry Equipment1 Emission factor: VOC (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total VOC Emissions by Equipment (tpy) Equipment1 Emission factor: PM2.5 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM2.5 Emissions by Equipment (tpy) Pump (2ea) 0.41 80 =10*260 0.43 =(B2*C2*D2*E2/454/2000)*2 Pump (2ea) 0.32 80 =10*260 0.43 =(I2*J2*K2*L2/454/2000)*2 Lifts (1ea) 0.85 150 =10*260 0.21 =(B3*C3*D3*E3/454/2000)*2 Lifts (1ea) 0.42 150 =10*260 0.21 =(I3*J3*K3*L3/454/2000)*2 Off-Highway Trucks (7ea) 0.19 300 =10*260 0.59 =(B4*C4*D4*E4/454/2000)*2 Off-Highway Trucks (7ea) 0.14 300 =10*260 0.59 =(I4*J4*K4*L4/454/2000)*2 Tractor (2ea) 0.77 256 =10*260 0.21 =(B5*C5*D5*E5/454/2000)*2 Tractor (2ea) 0.27 256 =10*260 0.21 =(I5*J5*K5*L5/454/2000)*2 Dozer (1ea) 0.35 210 =10*260 0.59 =(B6*C6*D6*E6/454/2000)*2 Dozer (1ea) 0.14 210 =10*260 0.59 =(I6*J6*K6*L6/454/2000)*2 Front End Loader (4ea) 0.77 180 =10*260 0.21 =(B7*C7*D7*E7/454/2000)*2 Front End Loader (4ea) 0.27 180 =10*260 0.21 =(I7*J7*K7*L7/454/2000)*2 Excavator (2ea) 0.19 350 =10*260 0.59 =(B8*C8*D8*E8/454/2000)*2 Excavator (2ea) 0.14 350 =10*260 0.59 =(I8*J8*K8*L8/454/2000)*2 Total VOC tpy =SUM(F2:F8) Total PM2.5 tpy =SUM(M2:M8) Equipment1 Emission factor: CO (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total CO Emissions by Equipment (tpy) Equipment1 Emission factor: SO2 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total SO2 Emissions by Equipment (tpy) Pump (2ea) 3.99 80 =10*260 0.43 =(B12*C12*D12*E12/454/2000)*2 Pump (2ea) 0.005 80 =10*260 0.43 =(I12*J12*K12*L12/454/2000)*2 Lifts (1ea) 2.46 150 =10*260 0.21 =(B13*C13*D13*E13/454/2000)*2 Lifts (1ea) 0.006 150 =10*260 0.21 =(I13*J13*K13*L13/454/2000)*2 Off-Highway Trucks (7ea) 1.42 300 =10*260 0.59 =(B14*C14*D14*E14/454/2000)*2 Off-Highway Trucks (7ea) 0.005 300 =10*260 0.59 =(I14*J14*K14*L14/454/2000)*2 Tractor (2ea) 2.11 256 =10*260 0.21 =(B15*C15*D15*E15/454/2000)*2 Tractor (2ea) 0.006 256 =10*260 0.21 =(I15*J15*K15*L15/454/2000)*2 Dozer (1ea) 1.26 210 =10*260 0.59 =(B16*C16*D16*E16/454/2000)*2 Dozer (1ea) 0.005 210 =10*260 0.59 =(I16*J16*K16*L16/454/2000)*2 Front End Loader (4ea) 2.11 180 =10*260 0.21 =(B17*C17*D17*E17/454/2000)*2 Front End Loader (4ea) 0.006 180 =10*260 0.21 =(I17*J17*K17*L17/454/2000)*2 Excavator (2ea) 1.42 350 =10*260 0.59 =(B18*C18*D18*E18/454/2000)*2 Excavator (2ea) 0.005 350 =10*260 0.59 =(I18*J18*K18*L18/454/2000)*2 Total CO tpy =SUM(F12:F18) Total SO2 tpy =SUM(M12:M18) Equipment1 Emission factor: PM10 (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total PM10 Emissions by Equipment (tpy) Equipment1 Emission factor: NOx (gr/bhp-hr)1 Break Horsepower (bhp)2 Hours Equipment Used per year (hr/yr)3 Load Factor 4 Total NOx Emissions by Equipment (tpy) Pump (2ea) 0.33 80 =10*260 0.43 =(B22*C22*D22*E22/454/2000)*2 Pump (2ea) 4.49 80 =10*260 0.43 =(I22*J22*K22*L22/454/2000)*2 Lifts (1ea) 0.43 150 =10*260 0.21 =(B23*C23*D23*E23/454/2000)*2 Lifts (1ea) 4.56 150 =10*260 0.21 =(I23*J23*K23*L23/454/2000)*2 Off-Highway Trucks (7ea) 0.15 300 =10*260 0.59 =(B24*C24*D24*E24/454/2000)*2 Off-Highway Trucks (7ea) 4.15 300 =10*260 0.59 =(I24*J24*K24*L24/454/2000)*2 Tractor (2ea) 0.28 256 =10*260 0.21 =(B25*C25*D25*E25/454/2000)*2 Tractor (2ea) 4.45 256 =10*260 0.21 =(I25*J25*K25*L25/454/2000)*2 Dozer (1ea) 0.15 210 =10*260 0.59 =(B26*C26*D26*E26/454/2000)*2 Dozer (1ea) 3.82 210 =10*260 0.59 =(I26*J26*K26*L26/454/2000)*2 Front End Loader (4ea) 0.28 180 =10*260 0.21 =(B27*C27*D27*E27/454/2000)*2 Front End Loader (4ea) 4.45 180 =10*260 0.21 =(I27*J27*K27*L27/454/2000)*2 Excavator (2ea) 0.15 350 =10*260 0.59 =(B28*C28*D28*E28/454/2000)*2 Excavator (2ea) 4.15 350 =10*260 0.59 =(I28*J28*K28*L28/454/2000)*2 Total PM10 tpy =SUM(F22:F28) Total NOx tpy =SUM(M22:M28) Notes (1) Equipment and emission factors are from Table 4.4-2, CRN Early Site Permit Application (2) Values for bhp are from Statement of Fact Form, "Preconstruction and Construction Equiment Emission Factors", prepared for the CRN Early Site Permit Application (3) Hours of equipment use are estimated based on 10 hours per day, 260 days per year (5 days per week schedule). (4) Load Factors are from "Median Life, Annual Activity, and Load Factor Values for Nonroad Engine Emissions Modeling" EPA-420--R-10-016, NR-005d, July 2010 8/8/2025 12 of 20

RAI-MET-1, Attachment 1 - Tables GHGs for Quarry GHG Emissions = Quarry operation + quarry workforce Quarry operation emissions (MT CO2 equivalent) = 12,000 This is an assumed value based on the largest emission estimate for equipment used in preconstruction/construction (for a 7-year period) Quarry workforce = 30 From the "Bounding CRN Engineering Inputs to the Environmental Report" CRN-1 operations workforce = 205 From the CRN-1 Environmental Report CRN-1 GHG emissions from workforce (MT CO2 equivalent) = 41,000 This value is from Black & Veatch calculation 413227.58.0110.000 (40-year plant life cycle) Quarry GHG emissions from workforce (MT CO2 equivalent) = 150 This value represents GHG emissions related to workforce per year of quarry operation GHG Emissions for quarry operations only (MT CO2 equivalent) = 1,864 per year Estimate for GHG emissions from quarry deliveries Emission factor for heavy bulk trucks (gr/mile) = 2000 From EDF "The Green Freight Handbook", North American Freight Emissions Factors Number of truck deliveries per day = 80 From the "Bounding CRN Engineering Inputs to the Environmental Report" Delivery mileage = 100 Estimate Total daily miles = 8000 Calculated Number of days per year of operation = 260 Based on 5 days per week Total GHG emissions per year (MT CO2/yr) = 4,160 per year Total GHG (MT CO2/yr) = 6,024 per year Estimate for GHG emissions from quarry operations is conservatively based on COL/ESP-ISG-026 8/8/2025 13 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, GHGs for Quarry GHG Emissions = Quarry operation + quarry workforce Quarry operation emissions (MT CO2 equivalent) = 12000 This is an assumed value based on the largest emission estimate for equipment used in preconstruction/construction (for a 7-year period) Quarry workforce = 30 From the "Bounding CRN Engineering Inputs to the Environmental Report" CRN-1 operations workforce = 205 From the CRN-1 Environmental Report CRN-1 GHG emissions from workforce (MT CO2 equivalent) = 41000 This value is from Black & Veatch calculation 413227.58.0110.000 (40-year plant life cycle) Quarry GHG emissions from workforce (MT CO2 equivalent) = =B5/B6*B7/40 This value represents GHG emissions related to workforce per year of quarry operation GHG Emissions for quarry operations only (MT CO2 equivalent) = =B4/7+B8 per year Estimate for GHG emissions from quarry deliveries Emission factor for heavy bulk trucks (gr/mile) = 2000 From EDF "The Green Freight Handbook", North American Freight Emissions Factors Number of truck deliveries per day = 80 From the Bounding CRN Engineering Inputs to the Environmental Report Delivery mileage = 100 Estimate Total daily miles = =B15*B16 Calculated Number of days per year = 260 Based on 5 days per week Total GHG emissions per year (MT CO2/yr) = =B14*B17*B18/1000000 per year Total GHG (MT CO2/yr) = =B10+B19 per year Estimate for GHG emissions from quarry operations is conservatively based on COL/ESP-ISG-026 8/8/2025 14 of 20

RAI-MET-1, Attachment 1 - Tables Quarry Truck Emissions Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions (tpy) Short-Haul Truck 0.131 80 26000 0.30 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions (tpy) Short-Haul Truck 3.222 80 26000 7.38 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Short-Haul Truck 0.12 80 26000 0.27 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Short-Haul Truck 0.019 80 26000 0.04 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Short-Haul Truck 0.003 80 26000 0.007 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Short-Haul Truck 2.097 80 26000 4.80 (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (2) Number of delivieries assumed to be 80 per day based on entry to the quarry, loading rates, unloading rates, and exiting the CRN-1 site (3) Number of miles per year based on per vehicle round trip of 100 miles and 260 days per year (5 days per week) (4) Emission factor for SO2 is not provided in "MOVES3 Vehicle Operation Emission Factors", so the factor from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 15 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Quarry Truck Emissions Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions (tpy) Short-Haul Truck 0.131 80 =100*260 =B2*C2*D2/454/2000 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions (tpy) Short-Haul Truck 3.222 80 =100*260 =B6*C6*D6/454/2000 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Short-Haul Truck 0.12 80 =100*260 =B10*C10*D10/454/2000 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Short-Haul Truck 0.019 80 =100*260 =B14*C14*D14/454/2000 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Short-Haul Truck 0.003 80 =100*260 =B18*C18*D18/454/2000 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Short-Haul Truck 2.097 80 =100*260 =B22*C22*D22/454/2000 (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (2) Number of delivieries assumed to be 80 per day based on entry to the quarry, loading rates, unloading rates, and exiting the CRN-1 site (3) Number of miles per year based on per vehicle round trip of 100 miles and 260 days per year (5 days per week) (4) Emission factor for SO2 is not provided in "MOVES3 Vehicle Operation Emission Factors", so the factor from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 16 of 20

RAI-MET-1, Attachment 1 - Tables Vehicle Emissions - Operations Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 100 14600 0.25 Passenger Truck 0.157 100 14600 0.25 Total VOC tpy 0.50 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 100 14600 2.36 Passenger Truck 2.386 100 14600 3.84 Total CO tpy 6.19 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 100 14600 0.056 Passenger Truck 0.035 100 14600 0.056 Total PM10 tpy 0.11 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 100 14600 0.013 Passenger Truck 0.007 100 14600 0.011 Total PM2.5 tpy 0.02 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 100 14600 0.0032 Passenger Truck 0.003 100 14600 0.0048 Total SO2 tpy 0.01 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 100 14600 0.063 Passenger Truck 0.03 100 14600 0.048 Total NOx tpy 0.11 (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (2) Number of vehicles assumed to be 200 based on 205 workers needed for plant operation as described in CRN-1 ER. Vehicle type split evenly between cars and trucks. (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 17 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Vehicle Emissions - Operations Vehicle Type Emission factor: VOC (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total VOC emissions by vehicle type (tpy) Car 0.154 100 =40*365 =B2*C2*D2/454/2000 Passenger Truck 0.157 100 =40*365 =B3*C3*D3/454/2000 Total VOC tpy =E2+E3 Vehicle Type Emission factor: CO (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total CO emissions by vehicle type (tpy) Car 1.466 100 =40*365 =B7*C7*D7/454/2000 Passenger Truck 2.386 100 =40*365 =B8*C8*D8/454/2000 Total CO tpy =E7+E8 Vehicle Type Emission factor: PM10 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM10 emissions by vehicle type (tpy) Car 0.035 100 =40*365 =B12*C12*D12/454/2000 Passenger Truck 0.035 100 =40*365 =B13*C13*D13/454/2000 Total PM10 tpy =E12+E13 Vehicle Type Emission factor: PM2.5 (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total PM2.5 emissions by vehicle type (tpy) Car 0.008 100 =40*365 =B17*C17*D17/454/2000 Passenger Truck 0.007 100 =40*365 =B18*C18*D18/454/2000 Total PM2.5 tpy =E17+E18 Vehicle Type Emission factor: SO2 (gr/veh-mi)4 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total SO2 emissions by vehicle type (tpy) Car 0.002 100 =40*365 =B22*C22*D22/454/2000 Passenger Truck 0.003 100 =40*365 =B23*C23*D23/454/2000 Total SO2 tpy =E22+E23 Vehicle Type Emission factor: NOx (gr/veh-mi)1 Number of vehicles2 Number of miles round trip (miles/vehicle/yr)3 Total NOx emissions by vehicle type (tpy) Car 0.039 100 =40*365 =B27*C27*D27/454/2000 Passenger Truck 0.03 100 =40*365 =B28*C28*D28/454/2000 Total NOx tpy =E27+E28 (1) Emission factors from "MOVES3 Vehicle Operation Emission Factors", Argonne National Laboratory, October 2021. Emission factors for Model Year 2020 are used (2) Number of vehicles assumed to be 200 based on 205 workers needed for plant operation as described in CRN-1 ER. Vehicle type split evenly between cars and trucks. (3) Number of miles per year based on per vehicle round trip of 40 miles (source: COL/ESP-ISG-026 Table A-2) and 365 days per year (4) "MOVES3 Vehicle Operation Emission Factors" does not contain a factor for SO2, so the emission factor from from Table 4.4-3 CRN Early Site Permit Application is used 8/8/2025 18 of 20

RAI-MET-1, Attachment 1 - Tables Total Construction Emissions Estimates VOC (tpy) 4.90 CO (tpy) 42.77 PM10 (tpy) 2.28 PM2.5 (tpy) 1.66 SO2 (tpy) 0.08 NOx (tpy) 41.14 VOC (tpy) 5.58 CO (tpy) 45.70 PM10 (tpy) 2.34 PM2.5 (tpy) 1.80 SO2 (tpy) 0.09 NOx (tpy) 40.71 VOC (tpy) 50/100 CO (tpy) 100 PM10 (tpy) 100 PM2.5 (tpy) 100 SO2 (tpy) 100 NOx (tpy) 100 Emissions for First Two Years of Construction Emissions After First Two Years of Construction 40 CFR 93.153 Criteria for Maintenance Area 8/8/2025 19 of 20

RAI-MET-1, Attachment 1 - Tables Formulas, Total Construction Emissions Estimates VOC (tpy) ='Const Equip Yr 1-2'!F13+'Vehicle Emission Yr 1-2'!E4+'Construct Equip Quarry'!F9+'Quarry Truck Emissions'!E2 CO (tpy) ='Const Equip Yr 1-2'!F27+'Vehicle Emission Yr 1-2'!E9+'Construct Equip Quarry'!F19+'Quarry Truck Emissions'!E6 PM10 (tpy) ='Const Equip Yr 1-2'!F41+'Vehicle Emission Yr 1-2'!E14+'Construct Equip Quarry'!F29+'Quarry Truck Emissions'!E10 PM2.5 (tpy) ='Const Equip Yr 1-2'!M13+'Vehicle Emission Yr 1-2'!E19+'Construct Equip Quarry'!M9+'Quarry Truck Emissions'!E14 SO2 (tpy) ='Const Equip Yr 1-2'!M27+'Vehicle Emission Yr 1-2'!E24+'Construct Equip Quarry'!M19+'Quarry Truck Emissions'!E18 NOx (tpy) ='Const Equip Yr 1-2'!M41+'Vehicle Emission Yr 1-2'!E29+'Construct Equip Quarry'!M29+'Quarry Truck Emissions'!E22 VOC (tpy) ='Const Equip Yr 3'!F13+'Vehicle Emission Yr 3'!E4 CO (tpy) ='Const Equip Yr 3'!F27+'Vehicle Emission Yr 3'!E9 PM10 (tpy) ='Const Equip Yr 3'!F41+'Vehicle Emission Yr 3'!E14 PM2.5 (tpy) ='Const Equip Yr 3'!M13+'Vehicle Emission Yr 3'!E19 SO2 (tpy) ='Const Equip Yr 3'!M27+'Vehicle Emission Yr 3'!E24 NOx (tpy) ='Const Equip Yr 3'!M41+'Vehicle Emission Yr 3'!E29 VOC (tpy) 50/100 CO (tpy) 100 PM10 (tpy) 100 PM2.5 (tpy) 100 SO2 (tpy) 100 NOx (tpy) 100 Emissions for First Two Years of Construction Emissions After First Two Years of Construction 40 CFR 93.153 Criteria for Maintenance Area 8/8/2025 20 of 20}}