Facility Name:US Steel (Clairton Coke)
Facility Identifier:
Facility Reporting Year:2020
Facility Location:
Address: 400 STATE ST
City: CLAIRTON
State: PA
Postal Code: 15025

Facility Site Details:
CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):738,141.5
CO2 equivalent emissions from supplier subparts LL-QQ (metric tons):
Biogenic CO2 emissions from facility subparts C-II, SS, and TT (metric tons):0
Cogeneration Unit Emissions Indicator:N
GHG Report Start Date:2020-01-01
GHG Report End Date:2020-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:N
Primary NAICS Code:324199
Second Primary NAICS Code:

Parent Company Details:
Parent Company Name:US STEEL CORP
Address:600 Grant Street, Pittsburgh,  PA 15219-2800
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas NameCarbon Dioxide
Gas Quantity713,399 (Metric Tons)
Own Result?

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity11.6 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity2.204 (Metric Tons)
Own Result?

Unit Details:
Unit Name : CP-CP-COG3
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 229
Cumulative Maximum Rated Heat Input Capacity: 458

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 13449.3 (metric tons)

Tier Fuel Details:
Fuel : Coke Oven Gas
Tier Name : Tier 3 (Equation C-5, gaseous fuel)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
13449.3 (Metric Tons) 0.16 (Metric Tons) 0.033 (Metric Tons) 3.9 (Metric Tons) 9.8 (Metric Tons)

Carbon Content Substitute Data Information :
Total number of valid carbon content determinations : 12
Total number of carbon content substitute data values : 0
Frequency of carbon content determinations : Monthly
Total number of operating hours in the reporting year for which missing data substitution was used for fuel usage : 0

Molecular Weight Information :
Total number of valid molecular weight determinations : 12
Total number of molecular weight substitute data values : 0
Frequency of molecular weight determinations : Monthly
Molar Volume Constant (MVC) used : 849.5 (scf/kg-mole)

Unit Name : CP-CP-COG2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 156
Cumulative Maximum Rated Heat Input Capacity: 312

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 14269 (metric tons)

Tier Fuel Details:
Fuel : Coke Oven Gas
Tier Name : Tier 3 (Equation C-5, gaseous fuel)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
14269.0 (Metric Tons) 0.17 (Metric Tons) 0.036 (Metric Tons) 4.3 (Metric Tons) 10.8 (Metric Tons)

Carbon Content Substitute Data Information :
Total number of valid carbon content determinations : 12
Total number of carbon content substitute data values : 0
Frequency of carbon content determinations : Monthly
Total number of operating hours in the reporting year for which missing data substitution was used for fuel usage : 0

Molecular Weight Information :
Total number of valid molecular weight determinations : 12
Total number of molecular weight substitute data values : 0
Frequency of molecular weight determinations : Monthly
Molar Volume Constant (MVC) used : 849.5 (scf/kg-mole)

Unit Name : CP-CP-NG1
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 760
Cumulative Maximum Rated Heat Input Capacity: 4328

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 35808.5 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 2 (Equation C-2a)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31
Frequency of HHV determinations : Semiannually

Tier 2 Monthly HHV Details :
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Y Y Y N Y Y Y N Y Y Y Y

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
35808.5 (Metric Tons) 0.67 (Metric Tons) 0.067 (Metric Tons) 16.9 (Metric Tons) 20.1 (Metric Tons)


Unit Name : CP-CP-NG2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 760
Cumulative Maximum Rated Heat Input Capacity: 4474

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 68228.3 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 2 (Equation C-2a)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31
Frequency of HHV determinations : Semiannually

Tier 2 Monthly HHV Details :
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Y Y Y N Y Y Y N Y Y Y Y

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
68228.3 (Metric Tons) 1.29 (Metric Tons) 0.129 (Metric Tons) 32.1 (Metric Tons) 38.3 (Metric Tons)


Unit Name : CW-B1
Unit Type : OB (Boiler, other)
Unit Description :
Individual Unit Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 760 (mmBtu/hr)

Emission Details:
Annual CO2 mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:
Fuel : Coke Oven Gas
Tier Name : Tier 3 (Equation C-5, gaseous fuel)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
149623.7 (Metric Tons) 1.86 (Metric Tons) 0.387 (Metric Tons) 46.4 (Metric Tons) 115.3 (Metric Tons)

Carbon Content Substitute Data Information :
Total number of valid carbon content determinations : 12
Total number of carbon content substitute data values : 0
Frequency of carbon content determinations : Monthly
Total number of operating hours in the reporting year for which missing data substitution was used for fuel usage : 0

Molecular Weight Information :
Total number of valid molecular weight determinations : 12
Total number of molecular weight substitute data values : 0
Frequency of molecular weight determinations : Monthly
Molar Volume Constant (MVC) used : 849.5 (scf/kg-mole)

Unit Name : CW-B2
Unit Type : OB (Boiler, other)
Unit Description :
Individual Unit Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 481 (mmBtu/hr)

Emission Details:
Annual CO2 mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:
Fuel : Coke Oven Gas
Tier Name : Tier 3 (Equation C-5, gaseous fuel)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
83760.1 (Metric Tons) 1.04 (Metric Tons) 0.217 (Metric Tons) 26 (Metric Tons) 64.6 (Metric Tons)

Carbon Content Substitute Data Information :
Total number of valid carbon content determinations : 12
Total number of carbon content substitute data values : 0
Frequency of carbon content determinations : Monthly
Total number of operating hours in the reporting year for which missing data substitution was used for fuel usage : 0

Molecular Weight Information :
Total number of valid molecular weight determinations : 12
Total number of molecular weight substitute data values : 0
Frequency of molecular weight determinations : Monthly
Molar Volume Constant (MVC) used : 849.5 (scf/kg-mole)

Unit Name : CP-CP-COG1
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 460
Cumulative Maximum Rated Heat Input Capacity: 2317

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 348260.1 (metric tons)

Tier Fuel Details:
Fuel : Coke Oven Gas
Tier Name : Tier 3 (Equation C-5, gaseous fuel)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
348260.1 (Metric Tons) 6.41 (Metric Tons) 1.335 (Metric Tons) 160.2 (Metric Tons) 397.8 (Metric Tons)

Carbon Content Substitute Data Information :
Total number of valid carbon content determinations : 12
Total number of carbon content substitute data values : 0
Frequency of carbon content determinations : Monthly
Total number of operating hours in the reporting year for which missing data substitution was used for fuel usage : 0

Molecular Weight Information :
Total number of valid molecular weight determinations : 12
Total number of molecular weight substitute data values : 0
Frequency of molecular weight determinations : Monthly
Molar Volume Constant (MVC) used : 849.5 (scf/kg-mole)


Subpart Q: Iron and Steel Production


CEMS Monitoring Location (CML) Details

Gas Information Details

Gas NameCarbon Dioxide
Gas Quantity23,795.7 (Metric Tons)
Own Result?

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity0 (Metric Tons)
Own Result?
The values below are total values for units where the CO2 emissions were calculated using the mass balance methodology
Annual mass of fuel consumed: ()
Average carbon content of fuels: ()
Annual mass of non-fuels consumed: ()
Average carbon content of non-fuels: ()
Annual mass of products and byproducts produced: ()
Average carbon content of byproducts: ()
No Cems Unit Details:
Unit Name: CW-COKEP
Unit Description:
Unit Type: Coke Pushing Operation
CO2Emissions: 23795.7 (Metric Tons)


Flares