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HomeMy WebLinkAboutAQ_F_6600167_20221101_EI_Cmb-EI-File_2021 EI2021 Emissions Inventory Review / Data Tracking Form Facility Name: Enviva Pellets, LLC - Northampton Plant Facility Classification: Title V Assigned to: Dawn Reddix Data Entry: Northampton County Confidential Copy Submitted? YES NO Enter date received into ED. Date Received: _________________ Assigned to appropriate individual. Date Assigned: _________________ Date Due: __________________ Paper copy submitted: One copy received with supporting documentation, certification form signed by responsible official, and appears generally complete; OR Electronic copy submitted: All supporting documentation and certification form (with time/date stamp) signed by responsible official has been received. Comments: Facility ID: 6600167 Initial Review / Data Entry Inventory Review All forms and supporting documentation appear to be complete if paper submission (check ED OS data if electronic). Contact, address, phone number changes entered into I-Beam/Facilities if necessary. All known operating scenarios, control devices, and emission release points have been entered for each emission source (permitted, insignificant, and unpermitted) or note that the emission source was not operated or not required to report. Check if SCC codes for each OS are accurate and update if needed. Evaluate "U" sources for significance and address according to policy. Calculations / forms appear to add up correctly. All compliance issues are being addressed (e.g. Toxics limits, above TV thresholds, large emissions increase/decrease, installation without a permit). All volatile HAPs/TAPs were included in the VOC total. Calculations and control efficiencies appear correct. Emission factors are the best available and most current factors appropriate for the reporting facility (e.g. stack testing, AP-42, etc.). Review facility comments and address any issues. Update ED (Data Entry Main) if additional information is required (corrections due date and date received). Check all ED QA/QC reports. Comparison with previous emission inventory must be made and outliers (> 10%) must be investigated and explained. Put inventory review comments and summarize any changes in ED - Data Entry Main "DAQ internal comments". Date Review Complete: ___________________ Signature: _____________________________ Date Submitted to EI Coordinator: ___________________ Date Approved: ___________________ Initials: ___________________ Date Info Requested: ______________ Date Info Received: ______________ Total Days on Hold: ______ See notes. Significant changes to source configuration and controls, and new emission factors. 10/31/2022 Jeff Harris 11/01/2022 11/01/2022 COPY of RECORD Date Submitted: 6/29/2022 18:37:05 Inventory Certification Form(Title V) Facility Name: Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 NC Dept of Environmental Quality JUL O 12022 Raleigh Regional Office North Carolina Department of Environmental Quality Division of Air Quality Facility ID : 6600167 Permit : 10203 County : Northampton DAQ Region : RRO Air Pollutant Point Source Emissions Inventory -Calendar Year 2021 These forms must be completed and returned even if the facility did not operate or emissions were zero The legally defined "Responsible Official" of record for your facility is Gre~ Rhodes This person or one that meets the definition below must sign this certification form. The official submitting the information must certify that he/she complies with the requirements as specified in Title 15A NCAC 2Q .0520(b) which references and follows the federal definition . 40 CFR Part 70.2 defines a responsible as meaning one of the following : 1. For a corporation : a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the overall operation of one or more manufacturing, production, or operating facilities applying for a or subject to a permit and either i. the facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million(in second quarter 1980 dollars); or ii. the delegation of authority to such representatives is approved in advance by the permitting authority; 2 . For partnership or sole proprietorship; a general partner or the proprietor, respectively; 3. For a municipality, state, federal , or other public agency includes the chief executive officer having responsibility for the overall operations of a principal geographic unit of the agency ( e.g., a Regional Administrator of EPA). CERTIFICATION STATEMENT: amportant: Legally Responsible Official. read and sign after all submissions are final.) I certify that I am the responsible official for this facility , as described above, and hereby certify that the information contained in this air emissions report, including attached calculations and documentation, is true, accurate and complete. (Subject to legal penalties ofup to $25,000 per occurrence and possible imprisonment as outlined in G.S . § 143-215.3(a)(2)) Responsible Official's Signature Below (use blue ink): Date Signed: Printed Name: Greg Rhodes Signature: This form applies to tie V facilities. If this facility is not classified asTitle V, please telephone your regional office Emission Inventory Contact at once for proper forms . Email address of Responsible Official : greg.rhodes @envivabiomass.com Information on this Form cannot be held confidential COPY of RECORD Date Submitted : 6/29 /2022 18 :37 :05 1 Enviva Pellets, LLC - Northampton Plant 10203T09 6600167 Facility Name: Facility ID #: Permit #(s): Facility Total CY 2021 Emission Summary Recorded in ED Pollutant CAS CY 2021 from ED CY 2020 from Fees Green House Gases Pollutants (GHG)Actual Emissions Tons/Yr % ChangeDemini- mus Nitrous Oxide (N2O)10024972 1,610.66 6.00 26,744.3%1.0 Carbon Dioxide (CO2)124389 159,192.01 145,065.43 9.7%5,000.0 Methane (CH4)74-82-8 287.73 11.00 2,515.7%10.0 CO2 equivalent (sum of individual GHG pollutant emission times their 1995 IPCC Global Warming Potential (GWP), converted to metric tons) 602,869.73 metric tons Criteria Pollutants CY 2021 from ED CY 2020 from Fees (Tons/Year) Actual Emissions % ChangePollutantCASDemini- mus 58.4%53.3284.48CO 0.5CO -18.2%109.7589.77NOx 0.5NOx 15.0%74.7685.96TSP 0.5PM(TSP) -24.4%69.5352.53PM10 0.5PM10 -35.7%53.6234.50PM2.5 0.5PM2.5 -7.4%17.5416.24SO2 0.5SO2 -76.9%341.9978.97VOC 0.5VOC Hazardous Air Pollutants (HAPs) and/or Toxic Air Pollutants (TAPs) CY 2021 from ED CY 2020 from Fees (Pounds/Year) Actual Emissions % ChangePollutantCASDemini- mus Arsenic & Compounds (total mass of elemental AS, arsine and all inorganic compounds) 0.020000 Not Reported N/A0.01 N/ANot Reported 0.0200007440-38-2 0.01Arsenic Metal, elemental, unreacted (Component of ASC) Cadmium & compounds (total mass includes elemental metal)0.100000 Not Reported N/A0.1 N/ANot Reported 0.1000007440-43-9 0.1Cadmium Metal, elemental, unreacted (Component of CDC) Cobalt & compounds 0.010000 Not Reported N/A1.0 Page 1 of 310/31/2022 Enviva Pellets, LLC - Northampton Plant 10203T09 6600167 Facility Name: Facility ID #: Permit #(s): Facility Total CY 2021 Emission Summary Recorded in ED Hazardous Air Pollutants (HAPs) and/or Toxic Air Pollutants (TAPs) CY 2021 from ED CY 2020 from Fees (Pounds/Year) Actual Emissions % ChangePollutantCASDemini- mus N/ANot Reported 0.010000COC-Other 1.0Cobalt Unlisted Compounds - Specify Compound (Component of COC) Lead & compounds 0.040000 67.34 -99.9%1.0 -99.9%67.340.040000PBC-Other 10.0Lead Unlisted Compounds - Specify Compound (Component of PBC) Manganese & compounds 1.20 Not Reported N/A10.0 N/ANot Reported 1.20MNC-Other 10.0Manganese Unlisted Compounds - Specify Compound (Component of MNC) Mercury & Compounds - all total mass includes Hg Vapor 0.020000 Not Reported N/A0.001 N/ANot Reported 0.020000HGC-Other 0.001Mercury Unlisted Compounds - Specify Compound (Component of HGC) Nickel & Compounds, sum total mass includes elemental 0.214200 Not Reported N/A1.0 N/ANot Reported 0.1900007440-02-0 1.0Nickel metal (Component of NIC) N/ANot Reported 0.024200NIC-Other 1.0Nickel Unlisted Compounds (Component of NIC - Specify) Polycyclic Organic Matter (Specific Compounds from OAQPS for TV) 0.129710 Not Reported N/A1.0 N/ANot Reported 0.12971091-20-3 1.0Naphthalene (Component of 83329/POMTV) -64.8%7,064.512,486.0375-07-0 10.0Acetaldehyde 42.3%1,847.072,627.73107-02-8 10.0Acrolein N/ANot Reported 286.947664-41-7 100.0Ammonia (as NH3) 63,048.5%0.10300065.0471-43-2 1.0Benzene N/A0.0040000.004320106-99-0 1.0Butadiene, 1,3- N/ANot Reported 0.130000CHROM6CPDSChromium (VI) & compounds -82.8%14,887.082,564.8550-00-0 10.0Formaldehyde Page 2 of 310/31/2022 Enviva Pellets, LLC - Northampton Plant 10203T09 6600167 Facility Name: Facility ID #: Permit #(s): Facility Total CY 2021 Emission Summary Recorded in ED Hazardous Air Pollutants (HAPs) and/or Toxic Air Pollutants (TAPs) CY 2021 from ED CY 2020 from Fees (Pounds/Year) Actual Emissions % ChangePollutantCASDemini- mus N/ANot Reported 161.40110-54-3 100.0Hexane, n- -86.8%18,967.162,497.9167-56-1 1,000.0Methanol (methyl alcohol) N/ANot Reported 717.83108-95-2 100.0Phenol 19,743.7%0.0190003.77POM 1.0Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic) -47.2%1,219.49643.62123-38-6 10.0Propionaldehyde 689.3%0.0450000.355200108-88-3 100.0Toluene -1.6%0.0320000.0315001330-20-7 100.0Xylene (mixed isomers) Largest Individual HAP 2,627.73 lbs 11,770.31 lbsTotal HAP Emissions Acrolein Largest Individual CAP 89.77 tons Total CAP Emissions 321.99 tons Total TAP Emissions 8,911.73 lbs Total Aggregate Emissions 322.13 tons NOx DAQ's Comments Regarding Inventory Page 3 of 310/31/2022 Significant changes in criteria pollutants and some HAP/TAP emissions are tied to changes in source configuration and controls, and new emissions factors. 1) Added RTO to OS10 Dryer in 2021. New source tests were performed, resulting in new emission factors. 2) Dry hammermill emissions were routed through furnace and thus to OS10 Dryer. 3) RTO/RCO added to pellet coolers in 2021. New source tests were performed, resulting in new emission factors. [CJH Conv. w Joe Harrell 10/31/2022] Facility Emissions - Operating Scenarios Per Pollutant Enviva Pellets, LLC - Northampton Plant 2021 Inventory Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 Acetaldehyde OS-5 636.72 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.084800 Pounds 0.085000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-10 1,848.62 Pounds 6,849.62 Pounds ES-DRYER-1 ES-DRYER-1 OS-21 214.80 Pounds ES-DWH-1 OS-38 0.610000 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 2,486.03 Pounds TOTAL in Previous Inventory: 7,064.51 Pounds Acrolein OS-5 1,260.80 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.010200 Pounds 0.010000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 10/31/2022 Page 1 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 OS-10 1,363.99 Pounds ES-DRYER-1 ES-DRYER-1 OS-27 230.88 Pounds ES-HM-8 OS-30 1,616.18 Pounds ES-DCS.20A ES-DLC-1 ES-HM-1 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 ES-HM-7 OS-38 2.93 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 2,627.73 Pounds TOTAL in Previous Inventory: 1,847.07 Pounds Ammonia (as NH3) OS-5 286.94 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 286.94 Pounds Arsenic Metal, elemental, unreacted (Component of ASC) OS-5 0.020000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.02 Pounds 10/31/2022 Page 2 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 Benzene OS-5 64.94 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.103000 Pounds 0.103000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 TOTAL in Current Inventory: 65.04 Pounds TOTAL in Previous Inventory: 0.10 Pounds Butadiene, 1,3- OS-7 0.004320 Pounds 0.004000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 TOTAL in Current Inventory: 0.00 Pounds TOTAL in Previous Inventory: 0.00 Pounds Cadmium Metal, elemental, unreacted (Component of CDC) OS-5 0.100000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.10 Pounds Carbon Dioxide (CO2) OS-5 8,262.00 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 9.01 Tons 8.43 Tons 10/31/2022 Page 3 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-10 150,845.00 Tons 145,057.00 Tons ES-DRYER-1 ES-DRYER-1 OS-38 76.00 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 159,192.01 Tons TOTAL in Previous Inventory: 145,065.43 Tons Chromium (VI) & compounds OS-5 0.130000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.13 Pounds CO OS-5 4.31 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.050000 Tons 0.050000 Tons IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-10 79.90 Tons 53.27 Tons ES-DRYER-1 ES-DRYER-1 OS-38 0.220000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 84.48 Tons TOTAL in Previous Inventory: 53.32 Tons Cobalt Unlisted Compounds - Specify Compound (Component of COC) OS-5 0.010000 Pounds 10/31/2022 Page 4 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.01 Pounds Formaldehyde OS-5 293.85 Pounds 1,907.68 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.130000 Pounds 0.131000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-10 1,837.35 Pounds 12,785.95 Pounds ES-DRYER-1 ES-DRYER-1 OS-21 221.26 Pounds 193.32 Pounds ES-DWH-1 ES-DWH-1 OS-38 0.001610 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 OS-43 212.26 Pounds ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 2,564.85 Pounds TOTAL in Previous Inventory: 14,887.08 Pounds Hexane, n- OS-5 161.40 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 10/31/2022 Page 5 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 TOTAL in Current Inventory: 161.40 Pounds Lead Unlisted Compounds - Specify Compound (Component of PBC) OS-5 0.040000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 67.34 Pounds ES-DRYER-1 TOTAL in Current Inventory: 0.04 Pounds TOTAL in Previous Inventory: 67.34 Pounds Manganese Unlisted Compounds - Specify Compound (Component of MNC) OS-5 0.030000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-38 1.17 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 1.20 Pounds Mercury Unlisted Compounds - Specify Compound (Component of HGC) OS-5 0.020000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.02 Pounds Methane (CH4) OS-5 9.86 Tons ES-CLR-1 ES-CLR-1 10/31/2022 Page 6 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 277.72 Tons 11.00 Tons ES-DRYER-1 ES-DRYER-1 OS-38 0.150000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 287.73 Tons TOTAL in Previous Inventory: 11.00 Tons Methanol (methyl alcohol) OS-5 535.65 Pounds 6,153.81 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 460.25 Pounds 10,046.11 Pounds ES-DRYER-1 ES-DRYER-1 OS-11 397.38 Pounds 234.95 Pounds IES-EPWC IES-EPWC OS-21 492.71 Pounds 397.38 Pounds ES-DWH-1 ES-DWH-1 OS-27 202.02 Pounds ES-HM-8 OS-30 1,414.16 Pounds ES-DCS.20A ES-DLC-1 ES-HM-1 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 ES-HM-7 10/31/2022 Page 7 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 OS-31 119.21 Pounds 48.83 Pounds IES-BARK IES-BARK OS-33 234.95 Pounds ES-GHM-1 OS-34 234.95 Pounds ES-GHM-2 OS-43 492.71 Pounds ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 2,497.91 Pounds TOTAL in Previous Inventory: 18,967.16 Pounds Naphthalene (Component of 83329/POMTV) OS-5 0.050000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 0.008610 Pounds ES-DRYER-1 ES-DRYER-1 OS-38 0.071100 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 0.13 Pounds Nickel metal (Component of NIC) OS-5 0.190000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 TOTAL in Current Inventory: 0.19 Pounds Nickel Unlisted Compounds (Component of NIC - Specify) OS-38 0.024200 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 10/31/2022 Page 8 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 TOTAL in Current Inventory: 0.02 Pounds Nitrous Oxide (N2O) OS-5 23.50 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 1,586.29 Tons 6.00 Tons ES-DRYER-1 ES-DRYER-1 OS-38 0.870000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 1,610.66 Tons TOTAL in Previous Inventory: 6.00 Tons NOx OS-5 7.14 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.050000 Tons 0.050000 Tons IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-10 82.50 Tons 109.70 Tons ES-DRYER-1 ES-DRYER-1 OS-38 0.080000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 89.77 Tons TOTAL in Previous Inventory: 109.75 Tons Phenol OS-5 636.72 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 10/31/2022 Page 9 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 81.07 Pounds ES-DRYER-1 ES-DRYER-1 OS-38 0.040000 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 717.83 Pounds PM(TSP) OS-5 32.80 Tons 35.19 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 28.90 Tons 12.03 Tons ES-DRYER-1 ES-DRYER-1 OS-13 4.49 Tons 4.87 Tons ES-FPH ES-FPH OS-17 0.460000 Tons 0.490000 Tons ES-PCHP ES-PCHP OS-20 0.320000 Tons 0.340000 Tons ES-PMFS ES-PMFS OS-21 0.090000 Tons 0.070000 Tons ES-DWH-1 ES-DWH-1 OS-23 16.30 Tons 2.67 Tons ES-GWHS ES-GWHS IES-GWFB IES-GWFB OS-27 2.32 Tons ES-HM-8 OS-30 16.21 Tons ES-DCS.20A 10/31/2022 Page 10 of 17 Hammermills Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-DLC-1 ES-HM-1 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 ES-HM-7 OS-31 0.240000 Tons 0.100000 Tons IES-BARK IES-BARK OS-32 0.790000 Tons 0.470000 Tons IES-Debark IES-Debark OS-36 0.220000 Tons IES-ADD IES-ADD OS-37 0.010000 Tons IES-DLH IES-DLH OS-38 0.210000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 OS-39 0.430000 Tons IES-DRYSHAVE IES-DRYSHAVE OS-40 0.060000 Tons ES-DSS ES-DSS OS-41 0.320000 Tons ES-DSR ES-DSR OS-43 0.320000 Tons ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 85.96 Tons TOTAL in Previous Inventory: 74.76 Tons PM10 OS-5 8.80 Tons 32.02 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 10/31/2022 Page 11 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 OS-10 28.90 Tons 12.03 Tons ES-DRYER-1 ES-DRYER-1 OS-13 4.08 Tons 4.43 Tons ES-FPH ES-FPH OS-17 0.460000 Tons 0.490000 Tons ES-PCHP ES-PCHP OS-20 0.320000 Tons 0.340000 Tons ES-PMFS ES-PMFS OS-21 0.040000 Tons 0.040000 Tons ES-DWH-1 ES-DWH-1 OS-23 8.16 Tons 1.34 Tons ES-GWHS ES-GWHS IES-GWFB IES-GWFB OS-27 2.32 Tons ES-HM-8 OS-30 16.21 Tons ES-DCS.20A ES-DLC-1 ES-HM-1 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 ES-HM-7 OS-31 0.130000 Tons 0.050000 Tons IES-BARK IES-BARK OS-32 0.440000 Tons 0.260000 Tons IES-Debark IES-Debark OS-36 0.100000 Tons IES-ADD IES-ADD OS-38 0.190000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 10/31/2022 Page 12 of 17 Hammermills Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 OS-39 0.210000 Tons IES-DRYSHAVE IES-DRYSHAVE OS-40 0.060000 Tons ES-DSS ES-DSS OS-41 0.320000 Tons ES-DSR ES-DSR OS-43 0.320000 Tons ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 52.53 Tons TOTAL in Previous Inventory: 69.53 Tons PM2.5 OS-5 1.39 Tons 19.35 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 28.40 Tons 12.03 Tons ES-DRYER-1 ES-DRYER-1 OS-13 1.80 Tons 2.68 Tons ES-FPH ES-FPH OS-17 0.460000 Tons 0.490000 Tons ES-PCHP ES-PCHP OS-20 0.320000 Tons 0.340000 Tons ES-PMFS ES-PMFS OS-23 1.22 Tons 0.200000 Tons ES-GWHS ES-GWHS IES-GWFB IES-GWFB OS-27 2.32 Tons ES-HM-8 OS-30 16.21 Tons ES-DCS.20A ES-DLC-1 ES-HM-1 10/31/2022 Page 13 of 17 Hammermills Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 ES-HM-7 OS-36 0.020000 Tons IES-ADD IES-ADD OS-38 0.160000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 OS-39 0.030000 Tons IES-DRYSHAVE IES-DRYSHAVE OS-40 0.060000 Tons ES-DSS ES-DSS OS-41 0.320000 Tons ES-DSR ES-DSR OS-43 0.320000 Tons ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 34.50 Tons TOTAL in Previous Inventory: 53.62 Tons Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic) OS-5 3.66 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.018600 Pounds 0.019000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 OS-38 0.091700 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 3.77 Pounds TOTAL in Previous Inventory: 0.02 Pounds 10/31/2022 Page 14 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 Propionaldehyde OS-5 368.89 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 168.57 Pounds 1,187.27 Pounds ES-DRYER-1 ES-DRYER-1 OS-21 53.06 Pounds 32.22 Pounds ES-DWH-1 ES-DWH-1 OS-38 0.040000 Pounds ES-FURNACEBYP-1 ES-FURNACEBYP-1 OS-43 53.06 Pounds ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 643.62 Pounds TOTAL in Previous Inventory: 1,219.49 Pounds SO2 OS-5 0.030000 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 16.20 Tons 17.54 Tons ES-DRYER-1 ES-DRYER-1 OS-38 0.010000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 TOTAL in Current Inventory: 16.24 Tons TOTAL in Previous Inventory: 17.54 Tons Toluene OS-5 0.310000 Pounds ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 10/31/2022 Page 15 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-7 0.045200 Pounds 0.045000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 TOTAL in Current Inventory: 0.36 Pounds TOTAL in Previous Inventory: 0.05 Pounds VOC OS-5 18.30 Tons 122.71 Tons ES-CLR-1 ES-CLR-1 ES-CLR-2 ES-CLR-2 ES-CLR-3 ES-CLR-3 ES-CLR-4 ES-CLR-4 ES-CLR-5 ES-CLR-5 ES-CLR-6 ES-CLR-6 OS-10 19.50 Tons 183.44 Tons ES-DRYER-1 ES-DRYER-1 OS-11 0.990000 Tons 0.550000 Tons IES-EPWC IES-EPWC OS-21 15.69 Tons 9.93 Tons ES-DWH-1 ES-DWH-1 OS-23 8.30 Tons 2.93 Tons ES-GWHS ES-GWHS IES-GWFB IES-GWFB OS-27 2.65 Tons ES-HM-8 OS-30 18.57 Tons ES-DCS.20A ES-DLC-1 ES-HM-1 ES-HM-2 ES-HM-3 ES-HM-4 ES-HM-5 ES-HM-6 10/31/2022 Page 16 of 17 Enviva Pellets, LLC - Northampton Plant 6600167 10203T09 Facility Name: Facility ID:Permit Number(s): Emission Rate - 2021OS ID Emission Source ID Pollutant Emission Rate (Prev) - 2020 ES-HM-7 OS-31 0.300000 Tons 0.110000 Tons IES-BARK IES-BARK OS-33 0.550000 Tons ES-GHM-1 OS-34 0.550000 Tons ES-GHM-2 OS-38 0.010000 Tons ES-FURNACEBYP-1 ES-FURNACEBYP-1 OS-39 0.190000 Tons IES-DRYSHAVE IES-DRYSHAVE OS-43 15.69 Tons ES-DWH-2 ES-DWH-2 TOTAL in Current Inventory: 78.97 Tons TOTAL in Previous Inventory: 341.99 Tons Xylene (mixed isomers) OS-7 0.031500 Pounds 0.032000 Pounds IES-FWP IES-FWP IES-GN-1 IES-GN-1 TOTAL in Current Inventory: 0.03 Pounds TOTAL in Previous Inventory: 0.03 Pounds 10/31/2022 Page 17 of 17 6600167 Enviva, Northampton ID Group OS Name 2020 2021 Units Ratio Notes 14 22 Re-chippers - - 15 23 Green Wood Handling 469,909 920,702 Tons 1.96 2 35 Tanks 8,760 8,760 Hr 1.00 CF 3 5 Pellet Coolers 537,006 505,331 Tons 0.94 5 7 Internal Combustions 48 48 Hr 1.00 ES-DRYER-1 10 Direct heat, wood-fired dryer 469,909 397,375 Tons 0.85 ES-DSHM-1 Included in OS10 Dryer #1 ES-DSHM-2 Included in OS10 Dryer #1 ES-DSR 41 Dry shavings reception - 7,376 Hr ES-DSS 40 Dry shavings silo - 7,376 Hr ES-DWH-1 21 Dried wood handling 469,909 478,765 Tons 1.02 ES-DWH-2 43 Dried wood handling - 7,376 Hr ES-FPH 13 Finished product handling 8,003 7,376 0.92 ES-FURNACEBYP-1 38 Furnace 1 bypass, diesel startup - 60 Hr ES-HM-(1-8) Included in OS10 Dryer #1 ES-PCHP 17 Pellet cooler fines relay system 8,003 7,376 Hr 0.92 ES-PMFS 20 Pellet mill feed silo 8,003 7,376 Hr 0.92 IES-ADD 36 Additive handling and storage - 7,376 Hr IES-BARK 31 Bark Hog 48,833 119,213 Tons 2.44 IES-DLH 37 Dry line hopper - 73,760 Tons IES-DRYSHAVE 39 Dry shaving handling and storage - 73,760 Tons IES-Debark 32 Debarker 469,909 397,375 Tons 0.85 IES-EPWC 11 Electric powered green wood chipper 234,954 397,375.00 Tons 1.69 30 Hammermills Included in OS10 Dryer #1 ENVIVA PELLETS NORTHAMPTON , LLC 309 ENVIVA BLVD . GARYSBURG , NC 27831 NC Dept of Environmental Quality 252 541 -2631 www .envivabiomass.com JUL O 12022 ~ ,/llJ/-.,1-arr June 30, 2022 Raleigh Regional Office Via Overnight Delivery Air Emissions Inventory NCDEQ-DAQ Raleigh Regional Office Division of Air Quality 3800 Barrett Drive Raleigh, NC 27609 Re: Enviva Pellets, LLC -Northampton Plant Facility ID No. 6600167 Air Quality Permit No. 10203T09 Air Emissions Inventory -Calendar Year 2021 Dear Sir/Madam : Enviva Pellets , LLC -Northampton Plant has submitted the Air Emissions Inventory information for calendar year 2021 electron ically using the DAQ 's web-based Air Emissions Reporting On-l ine (AERO) tool. Included attached are an original copy of the emissions calculations in support of the electronic submittal and the Air Emissions Inventory Certification Form . If you have any questions or requ ire add itional information , please contact Joe Harrell at (252) 370-3181 . Sincerely, ~!fdev Plant Manager Enclosures COPY of RECORD Date Submitted: 6/29/2022 18:37:05 Inventory Certification Form(Title V) Facility Name: Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 NC Dept of Environmental Quality JUL O 12022 Raleigh Regional Office North Carolina Department of Environmental Quality Division of Air Quality Facility ID : 6600167 Permit : 10203 County : Northampton DAQ Region : RRO Air Pollutant Point Source Emissions Inventory -Calendar Year 2021 These forms must be completed and returned even if the facility did not operate or emissions were zero The legally defined "Responsible Official" of record for your facility is Gre~ Rhodes This person or one that meets the definition below must sign this certification form. The official submitting the information must certify that he/she complies with the requirements as specified in Title 15A NCAC 2Q .0520(b) which references and follows the federal definition . 40 CFR Part 70.2 defines a responsible as meaning one of the following : 1. For a corporation : a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the overall operation of one or more manufacturing, production, or operating facilities applying for a or subject to a permit and either i. the facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million(in second quarter 1980 dollars); or ii. the delegation of authority to such representatives is approved in advance by the permitting authority; 2 . For partnership or sole proprietorship; a general partner or the proprietor, respectively; 3. For a municipality, state, federal , or other public agency includes the chief executive officer having responsibility for the overall operations of a principal geographic unit of the agency ( e.g., a Regional Administrator of EPA). CERTIFICATION STATEMENT: amportant: Legally Responsible Official. read and sign after all submissions are final.) I certify that I am the responsible official for this facility , as described above, and hereby certify that the information contained in this air emissions report, including attached calculations and documentation, is true, accurate and complete. (Subject to legal penalties ofup to $25,000 per occurrence and possible imprisonment as outlined in G.S . § 143-215.3(a)(2)) Responsible Official's Signature Below (use blue ink): Date Signed: Printed Name: Greg Rhodes Signature: This form applies to tie V facilities. If this facility is not classified asTitle V, please telephone your regional office Emission Inventory Contact at once for proper forms . Email address of Responsible Official : greg.rhodes @envivabiomass.com Information on this Form cannot be held confidential COPY of RECORD Date Submitted : 6/29 /2022 18 :37 :05 1 Listing of Emission Sources and Control Devices on Permit. See instructions         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO *ES ID on Air Permit *ES Description *CS ID *CS Description * CD ID's ES-CLR-1 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 ES-CLR-2 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 ES-CLR-3 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 ES-CLR-4 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 ES-CLR-5 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 ES-CLR-6 Pellet cooler CS-1 simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter),simple cyclone (54 inches in diameter), CD-CLR-1, CD- CLR-2, CD-CLR-3, CD-CLR-4, CD- CLR-5, CD-CLR-6 2 ES-DLC-1 Dry line feed conveyor CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-DRYER- 1 Direct heat, wood-fired dryer (175.3 million Btu per hour heat input, 71.71 ODT/hr) with integral cyclone CS-3 wet electrostatic precipitator (29,904 square feet of total collection plate area),simple cyclone (149 inches in diameter), CD-WESP-1, CD- DC.14B ES-DRYER- 2 Direct heat, wood-fired dryer (180 million Btu per hour heat input, 82.1 ODT/hr) with integral cyclone ES- DRYERBYP -1.14B Dryer 1 bypass ES- DRYERBYP -2.14B Dryer 2 bypass ES-DSHM-1 Dry shavings hammermill 1 ES-DSHM-2 Dry shavings hammermill 2 ES-DSR Dry shavings reception ES-DSS Dry shavings silo ES-DWH-1 Dried wood handling ES-DWH-2 Dried wood handling ES-FPH Finished product handling CS-5 fabric filter (4,842 square feet of filter area), CD-FPH-BF ES- FURNACEB YP-1 Furnace 1 bypass, diesel startup ES- FURNACEB YP-2 Furnace 2 bypass, diesel startup ES-GHM-1 One green hammermill ES-GHM-2 One green hammermill ES-GHM-3 One green hammermill ES-GHM-4 One green hammermill ES-GHM-5 One green hammermill ES-GWHS Green wood handling and storage ES-HM-1 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 3 ES-HM-2 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-HM-3 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-HM-4 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-HM-5 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-HM-6 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 4 ES-HM-7 One dry hammermill with integral cyclone CS-7 simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area),fabric filter (6,250 square feet of filter area), CD-HM-CYC-1, CD-HM-CYC-2, CD-HM-CYC-3, CD-HM-CYC-4, CD-HM-CYC-5, CD-HM-CYC-6, CD-HM-CYC-7, CD-HM-BF-1, CD- HM-BF-2, CD-HM- BF-3 ES-HM-8 One dry hammermill with integral cyclone CS-8 simple cyclone (120 inches in diameter),fabric filter (6,250 square feet of filter area), CD-HM-CYC-8, CD-HM-BF-3 ES-PB-1 One pellet load-out bin ES-PB-10 One pellet load-out bin ES-PB-11 One pellet load-out bin ES-PB-12 One pellet load-out bin ES-PB-2 One pellet load-out bin ES-PB-3 One pellet load-out bin ES-PB-4 One pellet load-out bin ES-PB-5 One pellet load-out bin ES-PB-6 One pellet load-out bin ES-PB-7 One pellet load-out bin ES-PB-8 One pellet load-out bin ES-PB-9 One pellet load-out bin ES-PCHP Pellet cooler fines relay system CS-6 one bin vent filter (780 square feet of filter area), CD-PCHP-BV ES-PL-1 Pellet mill load-out 1 ES-PL-2 Pellet mill load-out 2 ES-PMFS Pellet mill feed silo CS-2 bin vent filter (377 square feet of filter area), CD-PMFS-BV ES-PS-1.14B Dry hammermills pre-screener 1 ES-PS-2.14B Dry hammermills pre-screener 2 IES-ADD Additive handling and storage IES-BARK Bark Hog IES-DDB-1 One natural gas/propane-fired low NOx double duct burner (rated at 2.5 million Btu per hour) IES-DDB-2 One natural gas/propane-fired low NOx double duct burner (rated at 2.5 million Btu per hour) IES-DDB-3 One natural gas/propane-fired low NOx double duct burner (rated at 2.5 million Btu per hour) IES-DDB-4 One natural gas/propane-fired low NOx double duct burner (rated at 2.5 million Btu per hour) IES-DLH Dry line hopper IES- DRYSHAVE Dry shaving handling and storage systems IES-Debark Debarker IES-EB01 One electric boiler IES-EB02 One electric boiler IES-EPWC Electric powered green wood chipper IES-FWP One fire water pump (300 brake horsepower) [NSPS IIII, GACT ZZZZ] 5 IES-GN-1 One emergency use generator (350 brake horsepower) [NSPS IIII, GACT ZZZZ] IES-GN-2 One emergency use generator (671 brake horsepower) [NSPS IIII, GACT ZZZZ] IES-GWFB Green wood fuel storage bin IES-PVAP Propane vaporizer IES-TK1 One diesel storage tank (2,500 gallons capacity) IES-TK2 One diesel storage tank (600 gallons capacity) IES-TK3 Mobile diesel storage tank (5,000 gallon) IES-TK4 Diesel storage tank (1,000 gallon) 6 Emission Source & Operating Scenario List - See Instructions         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO *ES Group ID *ES ID *OS ID *OS Description GR1 ES-DLC-1, ES-HM-1, ES- HM-2, ES-HM-3, ES-HM-4, ES-HM-5, ES-HM-6, ES- HM-7 30 Hammermill Controlled Emissions GR2 IES-TK1, IES-TK2, IES- TK3, IES-TK4 35 Storage tanks GR3 ES-CLR-1, ES-CLR-2, ES- CLR-3, ES-CLR-4, ES- CLR-5, ES-CLR-6 5 Pellet Cooler Emissions GR5 IES-FWP, IES-GN-1 7 Emergency Generator and Water Pump GR6 ES-PB-1, ES-PB-10, ES- PB-11, ES-PB-12, ES-PB-2, ES-PB-3, ES-PB-4, ES-PB- 5, ES-PB-6, ES-PB-7, ES- PB-8, ES-PB-9, ES-PL-1, ES-PL-2 28 Drop Point Handling Equipment GR15 ES-GWHS, IES-GWFB 23 Green Wood Handling ES-DRYER-1 10 Dryer Operations ES-DRYER-2 NONE NONE ES-DRYERBYP-1.14B NONE NONE ES-DRYERBYP-2.14B NONE NONE ES-DSHM-1 NONE NONE ES-DSHM-2 NONE NONE ES-DSR 41 Dry Shavings Reception ES-DSS 40 Dry Shavings Storage Silo ES-DWH-1 21 Dried wood handling ES-DWH-2 43 Dried Wood Handling 2 ES-FPH 13 Finished product handling, pellet load-out bins, and pellet mill load-out ES-FURNACEBYP-1 38 Furnace Bypass Idle and Cold startup mode ES-FURNACEBYP-2 NONE NONE ES-GHM-1 33 One green hammermill ES-GHM-2 34 One green hammermill ES-GHM-3 NONE NONE ES-GHM-4 NONE NONE ES-GHM-5 NONE NONE ES-HM-8 27 Hammermill 8 Controlled Emissions ES-PCHP 17 Pellet Mill Fines Bin ES-PMFS 20 Storage silo PM controlled emissions ES-PS-1.14B NONE NONE 7 ES-PS-2.14B NONE NONE IES-ADD 36 Additive Handling and Storage IES-BARK 31 OS-31/Bark Hog IES-DDB-1 NONE NONE IES-DDB-2 NONE NONE IES-DDB-3 NONE NONE IES-DDB-4 NONE NONE IES-DLH 37 Drop point for Dry Shavings to Dry Line Hopper IES-DRYSHAVE 39 Dry shaving handling and storage IES-Debark 32 Debarker IES-EB01 NONE NONE IES-EB02 NONE NONE IES-EPWC 11 Fugitive Chipper Emissions IES-GN-2 NONE NONE IES-PVAP NONE NONE 8 8. Control Device Information :         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR1 consisting of ES-DLC-1, ES-HM-1, ES-HM-2, ES-HM-3, ES-HM-4, ES-HM-5, ES-HM-6, ES-HM-7 2. Emission Source Description :Hammermills 3. Operating Scenario ID/     Description: OS - 30/Hammermill Controlled Emissions 4. SCC Number/Description:30700808/Sawmill Operations ; Other Cyclones: Exhaust 5. Throughput/units in 2021: (e.g. production or fuel use): 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-7 CD-HM-CYC-1 One simple cyclone (120 inches in diameter) 2 CS-7 CD-HM-CYC-2 One simple cyclone (120 inches in diameter) 3 CS-7 CD-HM-CYC-3 One simple cyclone (120 inches in diameter) 4 CS-7 CD-HM-CYC-4 One simple cyclone (120 inches in diameter) 5 CS-7 CD-HM-CYC-5 One simple cyclone (120 inches in diameter) 6 CS-7 CD-HM-CYC-6 One simple cyclone (120 inches in diameter) 7 CS-7 CD-HM-CYC-7 One simple cyclone (120 inches in diameter) 8 CS-7 CD-HM-BF-1 One bagfilter (6,250 square feet of filter area) 9 CS-7 CD-HM-BF-2 One bagfilter (6,250 square feet of filter area) 10 CS-7 CD-HM-BF-3 One bagfilter (6,250 square feet of filter area) 9 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines): Operating Scenario: OS - 30 Emission Source/Group ID: GR1 ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- HM- BF1 HORIZONTAL STACK 48.5 4.8 100 41.44 45000 Hammermill Fabric Filters CD- HM- BF3 HORIZONTAL STACK 48.5 4.8 100 41.44 45000 Hammermill Fabric Filters CD- HM- BF2 HORIZONTAL STACK 48.5 4.8 100 41.44 45000 Hammermill Fabric Filters 10 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 30 Emission Source/Group ID: GR1 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 11 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR2 consisting of IES-TK1, IES-TK2, IES-TK3, IES-TK4 2. Emission Source Description :Tanks 3. Operating Scenario ID/     Description: OS - 35/Storage tanks 4. SCC Number/Description:39090003/Fuel Storage - Fixed Roof Tanks ; Distillate Oil (No. 2): Breathing Loss 5. Throughput/units in 2021: (e.g. production or fuel use): 8760 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 12 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 35 Emission Source/Group ID: GR2 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 13 8. Control Device Information :         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR3 consisting of ES-CLR-1, ES-CLR-2, ES-CLR-3, ES-CLR-4, ES-CLR-5, ES-CLR-6 2. Emission Source Description :Pellet Coolers 3. Operating Scenario ID/     Description: OS - 5/Pellet Cooler Emissions 4. SCC Number/Description:30700899/Sawmill Operations ; Other Not Classified 5. Throughput/units in 2021: (e.g. production or fuel use): 505331 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-1 CD-CLR-1 One high efficiency cyclone (54 inches in diameter) 2 CS-1 CD-CLR-2 One high efficiency cyclone (54 inches in diameter) 3 CS-1 CD-CLR-3 One high efficiency cyclone (54 inches in diameter) 4 CS-1 CD-CLR-4 One high efficiency cyclone (54 inches in diameter) 5 CS-1 CD-CLR-5 One high efficiency cyclone (54 inches in diameter) 6 CS-1 CD-CLR-6 One high efficiency cyclone (54 inches in diameter) 14 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines): Operating Scenario: OS - 5 Emission Source/Group ID: GR3 ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- CLR-1 to 6 VERTICAL STACK 40 2.5 140 58.05 17100 Pellet Coolers Cyclones 15 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 5 Emission Source/Group ID: GR3 Jan-Feb + Dec 2021 22%March-May 2021 27%June-Aug. 2021 24%Sept.-Nov. 2021 27% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Carbon Dioxide (CO2)124389 8262 08 0 Methane (CH4)74-82-8 9.86 08 0 Nitrous Oxide (N2O)10024972 23.5 08 0 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 4.31 08 0 NOx NOx 7.14 08 0 TSP TSP 32.8 10 99 PM10 PM10 8.8 10 99 PM2.5 PM2.5 1.39 10 99 SO2 SO2 0.03 08 0 VOC VOC 18.3 04 99 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Acetaldehyde 75-07-0 636.72 08 0 Acrolein 107-02-8 1260.8 08 0 Ammonia (as NH3)7664-41-7 286.94 08 0 Arsenic Metal, elemental unreacted (Component of ASC) 7440-38-2 0.02 08 0 Benzene 71-43-2 64.94 08 0 Cadmium Metal (elemental unreacted, Component of CDC) 7440-43-9 0.1 08 0 Chromium (VI) & compounds CHROM6 CPDS 0.13 08 0 Cobalt Unlisted Compound (Specify & Component of COC) COC- Other 0.01 08 0 16 Formaldehyde 50-00-0 293.85 04 0 Hexane, n-110-54-3 161.4 08 0 Lead Unlisted Compounds (Specify and Component of PBC) PBC-Other 0.04 08 0 Manganese Unlisted Compounds (Specify & Component of MNC) MNC- Other 0.03 08 0 Mercury Unlisted Compounds (Specify & Component of HGC) HGC- Other 0.02 08 0 Methanol 67-56-1 535.65 04 0 Naphthalene (Component of POMTV)91-20-3 0.05 08 0 Nickel metal (Component of NIC)7440-02-0 0.19 08 0 Phenol 108-95-2 636.72 08 0 Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic amorphous glob) POM 3.66 08 0 Propionaldehyde 123-38-6 368.89 08 0 Toluene 108-88-3 0.31 08 0 17 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR5 consisting of IES-FWP, IES-GN-1 2. Emission Source Description :Internal Combustions 3. Operating Scenario ID/     Description: OS - 7/Emergency Generator and Water Pump 4. SCC Number/Description:20200102/Distillate Oil (Diesel) ; Reciprocating 5. Throughput/units in 2021: (e.g. production or fuel use): 48 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 19300 Btu/lb 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description FWPST ACK HORIZONTAL STACK 10 0.4 986 157.69 1189 Fire Water Pump Stack EMERG EN VERTICAL STACK 5.8 0.3 920 317.13 1345 Emergency Generator Stack 18 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  5  )     Days per Week   (  1  )     Weeks per Year   (  12  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 7 Emission Source/Group ID: GR5 Jan-Feb + Dec 2021 25%March-May 2021 23%June-Aug. 2021 25%Sept.-Nov. 2021 27% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Carbon Dioxide (CO2)124389 9.01 08 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 0.05 08 NOx NOx 0.05 08 TSP TSP 0 08 PM10 PM10 0 08 PM2.5 PM2.5 0 08 SO2 SO2 0 08 VOC VOC 0 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Acetaldehyde 75-07-0 0.0848 08 Acrolein 107-02-8 0.0102 08 Benzene 71-43-2 0.103 08 Butadiene, 1,3-106-99-0 0.00432 08 Formaldehyde 50-00-0 0.13 08 Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic amorphous glob) POM 0.0186 08 Toluene 108-88-3 0.0452 08 Xylene 1330-20-7 0.0315 08 19 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR6 consisting of ES-PB-1, ES-PB-10, ES-PB-11, ES-PB-12, ES-PB-2, ES-PB-3, ES-PB-4, ES-PB-5, ES-PB-6, ES-PB-7, ES-PB-8, ES-PB-9, ES-PL-1, ES-PL-2 2. Emission Source Description :Handlings 3. Operating Scenario ID/     Description: OS - 28/Drop Point Handling Equipment 4. SCC Number/Description:30704005/Wood Bulk Handling and Storage - Wood/Bark ; Conveyors 5. Throughput/units in 2021: (e.g. production or fuel use): 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 20 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 28 Emission Source/Group ID: GR6 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 21 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID Group GR15 consisting of ES-GWHS, IES-GWFB 2. Emission Source Description :Green Wood Handling 3. Operating Scenario ID/     Description: OS - 23/Green Wood Handling 4. SCC Number/Description:30704003/Wood Bulk Handling and Storage - Wood/Bark ; Unloading 5. Throughput/units in 2021: (e.g. production or fuel use): 920702 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 22 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 23 Emission Source/Group ID: GR15 Jan-Feb + Dec 2021 24%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 29% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 16.3 08 PM10 PM10 8.16 08 PM2.5 PM2.5 1.22 08 SO2 SO2 08 VOC VOC 8.3 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 23 8. Control Device Information : 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-DRYER-1 2. Emission Source Description :Direct heat, wood-fired dryer (175.3 million Btu per hour heat input, 71.71 ODT/hr) with integral cyclone 3. Operating Scenario ID/     Description: OS - 10/Dryer Operations 4. SCC Number/Description:30700610/Particleboard Manufacture ; Direct Wood-fired Rotary Dryer, Hardwoods 5. Throughput/units in 2021: (e.g. production or fuel use): 397375 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-3 CD-WESP-1 One wet electrostatic precipitator (29,904 square feet of total collection plate area) 2 CS-3 CD-DC.14B One simple cyclone (205 inches in diameter) ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description DRYER VERTICAL STACK 94 10 175 24.88 117249 Dryer Stack 24 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 10 Emission Source/Group ID: ES- DRYER-1 Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Carbon Dioxide (CO2)124389 150845 08 0 Methane (CH4)74-82-8 277.72 08 0 Nitrous Oxide (N2O)10024972 1586.29 08 0 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 79.9 04 0 NOx NOx 82.5 04 0 TSP TSP 28.9 08 85 PM10 PM10 28.9 08 85 PM2.5 PM2.5 28.4 08 85 SO2 SO2 16.2 08 0 VOC VOC 19.5 04 0 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Acetaldehyde 75-07-0 1848.62 08 0 Acrolein 107-02-8 1363.99 08 0 Formaldehyde 50-00-0 1837.35 08 0 Lead Unlisted Compounds (Specify and Component of PBC) PBC-Other 0 08 0 Methanol 67-56-1 460.25 08 0 Naphthalene (Component of POMTV)91-20-3 0.00861 08 0 Phenol 108-95-2 81.07 08 0 Propionaldehyde 123-38-6 168.57 08 0 25 26 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-DSR 2. Emission Source Description :Dry shavings reception 3. Operating Scenario ID/     Description: OS - 41/Dry Shavings Reception 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description ES-DSR VERTICAL STACK 18 1.3 70 31.4 2500.67 Dry Shavings Receiving Dust Collector 27 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 41 Emission Source/Group ID: ES-DSR Jan-Feb + Dec 2021 24%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 29% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.32 10 PM10 PM10 0.32 10 PM2.5 PM2.5 0.32 10 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 28 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-DSS 2. Emission Source Description :Dry shavings silo 3. Operating Scenario ID/     Description: OS - 40/Dry Shavings Storage Silo 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description ES-DSS VERTICAL STACK 85 1.3 70 30.7 2444.92 Dry Shaving Silo Bin Vent 29 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 40 Emission Source/Group ID: ES-DSS Jan-Feb + Dec 2021 24%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 29% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.06 10 PM10 PM10 0.06 10 PM2.5 PM2.5 0.06 10 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 30 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-DWH-1 2. Emission Source Description :Dried wood handling 3. Operating Scenario ID/     Description: OS - 21/Dried wood handling 4. SCC Number/Description:30704005/Wood Bulk Handling and Storage - Wood/Bark ; Conveyors 5. Throughput/units in 2021: (e.g. production or fuel use): 478765 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 31 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 21 Emission Source/Group ID: ES-DWH- 1 Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.09 08 PM10 PM10 0.04 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 15.69 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Formaldehyde 50-00-0 221.26 08 Methanol 67-56-1 492.71 08 Propionaldehyde 123-38-6 53.06 08 32 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-DWH-2 2. Emission Source Description :Dried wood handling 3. Operating Scenario ID/     Description: OS - 43/Dried Wood Handling 2 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description ES- DWH-2 VERTICAL STACK 28 1.3 70 31.4 2500.67 Dried Wood Handling 2 33 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 43 Emission Source/Group ID: ES-DWH- 2 Jan-Feb + Dec 2021 24%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 29% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.32 10 PM10 PM10 0.32 10 PM2.5 PM2.5 0.32 10 SO2 SO2 08 VOC VOC 15.69 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Formaldehyde 50-00-0 212.26 08 Methanol 67-56-1 492.71 08 Propionaldehyde 123-38-6 53.06 08 34 8. Control Device Information : 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-FPH 2. Emission Source Description :finished product handling 3. Operating Scenario ID/     Description: OS - 13/Finished product handling, pellet load-out bins, and pellet mill load-out 4. SCC Number/Description:30704005/Wood Bulk Handling and Storage - Wood/Bark ; Conveyors 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-5 CD-FPH-BF One bagfilter (4,842 square feet of filter area) ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- FPH-BF VERTICAL STACK 18.8 4.3 77 40.74 35500 Finished Product Handling Fabric Filter 35 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 13 Emission Source/Group ID: ES-FPH Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 0 NOx NOx 08 0 TSP TSP 4.49 08 99 PM10 PM10 4.08 08 99 PM2.5 PM2.5 1.8 08 99 SO2 SO2 08 0 VOC VOC 08 0 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 36 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-FURNACEBYP-1 2. Emission Source Description :Furnace 1 bypass, diesel startup 3. Operating Scenario ID/     Description: OS - 38/Furnace Bypass Idle and Cold startup mode 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 60 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description ES- FURNA CEBYP -1 VERTICAL STACK 70 4.3 227 33.4 29102.11 Furnace Bypass Stack 37 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  1  )     Days per Week   (  1  )     Weeks per Year   (  9  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 38 Emission Source/Group ID: ES- FURNACEBYP-1 Jan-Feb + Dec 2021 0%March-May 2021 0%June-Aug. 2021 86%Sept.-Nov. 2021 14% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Carbon Dioxide (CO2)124389 76 08 Methane (CH4)74-82-8 0.15 08 Nitrous Oxide (N2O)10024972 0.87 08 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 0.22 04 NOx NOx 0.08 04 TSP TSP 0.21 08 PM10 PM10 0.19 08 PM2.5 PM2.5 0.16 08 SO2 SO2 0.01 08 VOC VOC 0.01 04 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Acetaldehyde 75-07-0 0.61 08 Acrolein 107-02-8 2.93 08 Formaldehyde 50-00-0 0.00161 08 Lead Unlisted Compounds (Specify and Component of PBC) PBC-Other 0 08 Manganese Unlisted Compounds (Specify & Component of MNC) MNC- Other 1.17 08 Methanol 67-56-1 0 08 Naphthalene (Component of POMTV)91-20-3 0.0711 08 38 Nickel Unlisted Compounds (Specify & Component of NIC) NIC-Other 0.0242 08 Phenol 108-95-2 0.04 08 Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic amorphous glob) POM 0.0917 08 Propionaldehyde 123-38-6 0.04 08 39 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-GHM-1 2. Emission Source Description :One green hammermill 3. Operating Scenario ID/     Description: OS - 33/One green hammermill 4. SCC Number/Description:30700804/Sawmill Operations ; Sawing: Cyclone Exhaust 5. Throughput/units in 2021: (e.g. production or fuel use): 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description DRYER VERTICAL STACK 94 10 175 24.88 117249 Dryer Stack 40 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 33 Emission Source/Group ID: ES-GHM- 1 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 41 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-GHM-2 2. Emission Source Description :One green hammermill 3. Operating Scenario ID/     Description: OS - 34/One green hammermill 4. SCC Number/Description:30700804/Sawmill Operations ; Sawing: Cyclone Exhaust 5. Throughput/units in 2021: (e.g. production or fuel use): 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 42 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 34 Emission Source/Group ID: ES-GHM- 2 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 43 8. Control Device Information : 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-HM-8 2. Emission Source Description :One dry hammermill with integral cyclone 3. Operating Scenario ID/     Description: OS - 27/Hammermill 8 Controlled Emissions 4. SCC Number/Description:30704004/Wood Bulk Handling and Storage - Wood/Bark ; Loading 5. Throughput/units in 2021: (e.g. production or fuel use): 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-8 CD-HM-CYC-8 One simple cyclone (120 inches in diameter) 2 CS-8 CD-HM-BF-3 One bagfilter (6,250 square feet of filter area) ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- HM- BF3 HORIZONTAL STACK 48.5 4.8 100 41.44 45000 Hammermill Fabric Filters 44 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 27 Emission Source/Group ID: ES-HM-8 Jan-Feb + Dec 2021 25%March-May 2021 25%June-Aug. 2021 25%Sept.-Nov. 2021 25% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 45 8. Control Device Information : 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-PCHP 2. Emission Source Description :Pellet cooler fines relay system 3. Operating Scenario ID/     Description: OS - 17/Pellet Mill Fines Bin 4. SCC Number/Description:30704001/Wood Bulk Handling and Storage - Wood/Bark ; Storage Bins 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-6 CD-PCHP-BV One bagfilter (780 square feet of filter area) ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- PFB- BV-1 HORIZONTAL STACK 66.4 1.8 77 28.88 4410 Pellets Fines Bin Vent Filter 46 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 17 Emission Source/Group ID: ES-PCHP Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 0 NOx NOx 08 0 TSP TSP 0.46 10 99 PM10 PM10 0.46 10 99 PM2.5 PM2.5 0.46 10 99 SO2 SO2 08 0 VOC VOC 08 0 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 47 8. Control Device Information : 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID ES-PMFS 2. Emission Source Description :pellet mill feed silo 3. Operating Scenario ID/     Description: OS - 20/Storage silo PM controlled emissions 4. SCC Number/Description:30704001/Wood Bulk Handling and Storage - Wood/Bark ; Storage Bins 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 HR/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): 100 Order CS-ID CD ID (as listed in permit) Control Device Description 1 CS-2 CD-PMFS-BV One bin vent filter (377 square feet of filter area) ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description CD- PMFS- BV HORIZONTAL STACK 97.3 0.9 77 62.87 2400 Pellet Mill Feed Silo Bin Vent Filter 48 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 20 Emission Source/Group ID: ES-PMFS Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 0 NOx NOx 08 0 TSP TSP 0.32 10 99 PM10 PM10 0.32 10 99 PM2.5 PM2.5 0.32 10 99 SO2 SO2 08 0 VOC VOC 08 0 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 49 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-ADD 2. Emission Source Description :Additive handling and storage 3. Operating Scenario ID/     Description: OS - 36/Additive Handling and Storage 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 7376 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description IES- ADD FUGITIVE (NO STACK) 1 72 Area = 1 Additive Handling 50 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  22  )     Days per Week   (  7  )     Weeks per Year   (  46  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 36 Emission Source/Group ID: IES-ADD Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.22 08 PM10 PM10 0.1 08 PM2.5 PM2.5 0.02 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 51 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-BARK 2. Emission Source Description :Bark Hog 3. Operating Scenario ID/     Description: OS - 31/OS-31/Bark Hog 4. SCC Number/Description:30704002/Wood Bulk Handling and Storage - Wood/Bark ; Stockpiles 5. Throughput/units in 2021: (e.g. production or fuel use): 119213 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 52 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 31 Emission Source/Group ID: IES- BARK Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.24 08 PM10 PM10 0.13 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 0.3 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Methanol 67-56-1 119.21 08 53 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-DLH 2. Emission Source Description :Dry line hopper 3. Operating Scenario ID/     Description: OS - 37/Drop point for Dry Shavings to Dry Line Hopper 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 73760 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 54 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  22  )     Days per Week   (  7  )     Weeks per Year   (  46  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 37 Emission Source/Group ID: IES-DLH Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.01 08 PM10 PM10 0 08 PM2.5 PM2.5 0 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 55 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-DRYSHAVE 2. Emission Source Description :Dry shaving handling and storage systems 3. Operating Scenario ID/     Description: OS - 39/Dry shaving handling and storage 4. SCC Number/Description:Not required by facility, will be completed by DAQ 5. Throughput/units in 2021: (e.g. production or fuel use): 73760 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 56 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 39 Emission Source/Group ID: IES- DRYSHAVE Jan-Feb + Dec 2021 24%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 29% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.43 08 PM10 PM10 0.21 08 PM2.5 PM2.5 0.03 08 SO2 SO2 08 VOC VOC 0.19 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 57 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-Debark 2. Emission Source Description :Debarker 3. Operating Scenario ID/     Description: OS - 32/Debarker 4. SCC Number/Description:30700801/Sawmill Operations ; Log Debarking 5. Throughput/units in 2021: (e.g. production or fuel use): 397375 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 58 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 32 Emission Source/Group ID: IES- Debark Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 0.79 10 PM10 PM10 0.44 10 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 59 8. Control Device Information :None 9. Emission Release Point (ERP) Information: (Sources vented to more than one ERP use additional entry lines):         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 1. Emission Source ID (from permit)     or Emission Source Group ID IES-EPWC 2. Emission Source Description :electric powered green wood chipper 3. Operating Scenario ID/     Description: OS - 11/Fugitive Chipper Emissions 4. SCC Number/Description:30700820/Sawmill Operations ; Chipping and Screening 5. Throughput/units in 2021: (e.g. production or fuel use): 397375 TON/yr 6. Fuel Information (If fuel is used) %Sulfur %Ash Heat Content (Btu/units) 7. Capture Efficiency (% of Emissions from this Process Vented to Control Device or Stack): Order CS-ID CD ID (as listed in permit) Control Device Description ERP ID ERP Type Height (in feet) Diameter Circle (enter #): Rectangle (L x W) (in 0.1 feet) Temperature (F) Velocity (Feet/sec) Volume Flow Rate (Acfm) ERP Description 001 FUGITIVE (NO STACK) 1 72 Area = 1 FUGITIVE 60 10. Operating Schedule:(Source/OperatingScenario that best characterizes Calendar Year 2021)     Hours per Day   (  24  )     Days per Week   (  7  )     Weeks per Year   (  52  ) 11. Typical Start & End Times For Operating Scenario:       Start:    0             End:    2359    12. Seasonal Periods Percent Annual Throughput: 13.  Actual Emissions per Pollutant Listed : Attach calculations and documentation of emission factors or other estimation methods used. Operating Scenario: OS - 11 Emission Source/Group ID: IES- EPWC Jan-Feb + Dec 2021 23%March-May 2021 24%June-Aug. 2021 23%Sept.-Nov. 2021 30% GHG Pollutants CAS Emissions- GHG Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 Criteria (NAAQS) Pollutants Pollutant Code Emissions- Criteria Pollutants (Tons/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor Ef Control 2021 CO CO 08 NOx NOx 08 TSP TSP 08 PM10 PM10 08 PM2.5 PM2.5 08 SO2 SO2 08 VOC VOC 0.99 08 HAP/TAP Pollutants (In Alphabetical Order) CAS (see instructions) Emissions HAP/TAPS (Pounds/Year) Emission Estimation Method Code (See Instructions) Control Efficiency (Net after all controls) Emission Factor EF Control 2021 Methanol 67-56-1 397.38 08 61 Record Facility-Wide Totals From all Permitted and Non-Permitted AirPollutant Emission Sources Facility Total CY 2021 Emissions Summary         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO North Carolina Department of Environmental Quality Division of Air Quality Air Pollutant Point Source Emissions Inventory - Calendar Year 2021 Green House Gases Pollutants(GHG) Actual Emissions (Tons/Year) Pollutant CAS 2021 2020 % Change Carbon Dioxide (CO2)124389 159192.02 145065.43 9.738072% Methane (CH4)74-82-8 287.73 11 2515.7275% Nitrous Oxide (N2O)10024972 1610.66 6 26744.334% Criteria Pollutants Actual Emissions (Tons/Year) Pollutant CAS 2021 2020 % Change CO CO 84.48 53.32 58.43962% NOx NOx 89.77 109.75 -18.205015% PM(TSP)TSP 85.96 74.76 14.98127% PM10 PM10 52.53 69.53 -24.449879% PM2.5 PM2.5 34.5 53.62 -35.658337% SO2 SO2 16.24 17.54 -7.4116373% VOC VOC 78.97 341.99 -76.908676% Hazardous Air Pollutants(HAPS) and/or Toxic Air Pollutants(TAPs) Actual Emissions (Pounds/Year) Pollutant CAS 2021 2020 % Change Pollutant Group:Arsenic & Compounds (total mass of elemental AS, arsine and all inorganic compounds) Group Sum:.02 Arsenic Metal, elemental unreacted (Component of ASC)7440-38-2 0.02 Not reported N/A Pollutant Group:Cadmium & compounds (total mass inc elemental metal) Group Sum:.1 Cadmium Metal (elemental unreacted, Component of CDC)7440-43-9 0.1 Not reported N/A Pollutant Group:Cobalt compounds Group Sum:.01 Cobalt Unlisted Compound (Specify & Component of COC)COC-Other 0.01 Not reported N/A Pollutant Group:Lead and Lead compounds Group Sum:.04 Lead Unlisted Compounds (Specify and Component of PBC)PBC-Other 0.04 67.34 -99.9406% Pollutant Group:Manganese & compounds Group Sum:1.2 62 Manganese Unlisted Compounds (Specify & Component of MNC)MNC-Other 1.2 Not reported N/A Pollutant Group:Mercury & Compounds - all total mass, inc Hg Vapor Group Sum:.02 Mercury Unlisted Compounds (Specify & Component of HGC)HGC-Other 0.02 Not reported N/A Pollutant Group:Nickel & Compounds, sum total mass, inc elemental Group Sum:.2142 Nickel Unlisted Compounds (Specify & Component of NIC)NIC-Other 0.0242 Not reported N/A Nickel metal (Component of NIC)7440-02-0 0.19 Not reported N/A Pollutant Group:Polycyclic Organic Matter (Specific Compounds from OAQPS for TV) Group Sum:.12971 Naphthalene (Component of POMTV)91-20-3 0.12971 Not reported N/A Acetaldehyde 75-07-0 2486.035 7064.505 -64.809494% Acrolein 107-02-8 2627.7302 1847.07 42.264793% Ammonia (as NH3)7664-41-7 286.94 Not reported N/A Benzene 71-43-2 65.043 .103 63048.543% Butadiene, 1,3-106-99-0 0.00432 .004 7.9999905% Chromium (VI) & compounds CHROM6CPDS 0.13 Not reported N/A Formaldehyde 50-00-0 2564.8516 14887.081 -82.77129% Hexane, n-110-54-3 161.4 Not reported N/A Methanol 67-56-1 2497.91 18967.16 -86.830345% Phenol 108-95-2 717.83 Not reported N/A Polycyclic Organic Matter (Inc PAH, dioxins, etc. NC & AP 42 historic amorphous glob) POM 3.7703 .019 19743.684% Propionaldehyde 123-38-6 643.62 1219.49 -47.2222% Toluene 108-88-3 0.3552 .045 689.33325% Xylene 1330-20-7 0.0315 .032 -1.5625031% 63         COPY of RECORD Date Submitted:  6/29/2022 18:37:05 As entered in AERO Facility Name:  Enviva Pellets Northampton, LLC 309 Enviva Boulevard Garysburg, NC 27831 Facility ID : 6600167 Permit :  10203 County : Northampton DAQ Region : RRO Comments From Facility: 6/27/2022 - Emission Source Comments ES ES-DSHM-1 : Emissions from Dry Shavings Hammermill 1 (ES-DSHM-1) are included with Dryer #1.ES ES- DSHM-2 : Emissions from Dry Shavings Hammermill 2 (ES-DSHM-2) are included with Dryer #1. 6/27/2022 - Operating Scenario Comments OS OS27 : Emissions from the Dry Hammermill (ES-HM-8) are included with Dryer #1. 6/27/2022 - Operating Scenario Comments OS OS30 : Emissions from the Dry Hammermills (ES-HM-1 through 8) are included with the emissions for the Dryer #1. 6/27/2022 - Operating Scenario Comments OS OS34 : Emissions from the Green Hammermill (ES-GHM-2) are included with Dryer #1. 6/27/2022 - Operating Scenario Comments OS OS33 : Emissions from the Green Hammermill (ES-GHM-1) are included with Dryer #1. 64 CO NOx TSP PM-10 PM-2.5 SO2 Total VOC CO2e (tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy) ES-GHM-1 through ES-GHM-5 Green Hammermills 1 through 5 ES-DRYER-1 Dryer #1 ES-HM-1 through ES-HM-8 Dry Hammermills 1 through 8 ES-DSHM-1 and ES-DSHM-2 Dry Shavings Hammermills 1 and 2 ES-DRYER-21 Dryer #2 CD-WESP-2; CD-RTO-2 WESP; RTO ---------------- ES-FURNACEBYP-1 Furnace #1 Bypass ----0.22 0.08 0.21 0.19 0.16 0.009 0.006 77 IES-DDB-1 and -21 Dryer #1 Double Duct Burners -------------------- ES-FURNACEBYP-21 Furnace #2 Bypass -------------------- IES-DDB-3 and -41 Dryer #2 Double Duct Burners -------------------- IES-PVAP1 Propane Vaporizer -------------------- ES-CLR-1 through ES-CLR-6 Pellet Coolers 1 through 6 CD-CLR-1 through CD-CLR-6; CD-RCO-2 Simple Cyclones; RCO/RTO 4.31 7.14 32.8 8.8 1.39 0.027 18.3 8,295 ES-DWH-13 Dried Wood Handling 1 CD-DWH-BV Passive Bin Vent ES-DWH-23 Dried Wood Handling 2 CD-DWH-BF-2 Baghouse ES-PS-1 and -2 Dry Hammermill Prescreeners 1 and 2 --------0.16 0.07 0.011 ------ ES-PCHP Pellet Cooler HP Fines Relay System CD-PCHP-BV Baghouse ----0.46 0.46 0.46 ------ ES-PMFS Pellet Mill Feed Silo CD-PMFS-BV Baghouse ----0.32 0.32 0.32 ------ ES-FPH; ES-PB-1 through ES-PB-12; ES-PL-1 and ES-PL-2 Finished Product Handling; Twelve Pellet Loadout Bins; Pellet Mill Loadout 1 and 2 CD-FPH-BF Baghouse ----4.49 4.08 1.80 ------ IES-ADD Additive Handling and Storage --------0.22 0.10 0.016 ------ IES-DLH Dry Line Hopper --------0.01 0.003 4.22E-04 ------ ES-DLC-1 Dry Line Feed Conveyor --------0.01 0.003 4.22E-04 ------ IES-DRYSHAVE Dry Shaving Material Handling and Storage --------0.43 0.21 0.032 --0.19 -- ES-DSS Dry Shavings Silo CD-DSS-BF Baghouse ----0.06 0.06 0.06 ------ ES-DSR Dry Shavings Reception CD-DSR-BF Baghouse ----0.32 0.32 0.32 ------ ES-GWHS Green Wood Handling and Storage --------16.3 8.16 1.22 --8.30 -- IES-EPWC Electric Powered Green Wood Chipper ----------------0.99 -- IES-BARK Bark Hog --------0.24 0.13 ----0.30 -- IES-DEBARK Debarker --------0.79 0.44 -------- IES-GWFB2 Green Wood Fuel Bin -------------------- IES-GN-1 Emergency Generator 1 ----0.03 0.03 1.64E-03 1.64E-03 1.64E-03 5.43E-05 2.50E-07 6 IES-FWP Fire Water Pump ----0.02 0.02 9.57E-04 9.57E-04 9.57E-04 3.17E-05 5.11E-05 3.3 IES-TK-1 Diesel Storage Tank for Emergency Generator #1 ----------------5.75E-04 -- IES-TK-2 Diesel Storage Tank for Fire Water Pump ----------------1.60E-04 -- IES-TK-3 Mobile Fuel Diesel Storage Tank ----------------0.0033 -- IES-TK-41 Diesel Storage Tank for Emergency Generator #2 -------------------- Total Emissions:84.4 89.7 86.1 52.6 34.5 16.2 79.1 161,091 Notes: 1. 2.Bark is transferred from the raw 3.As total VOC emissions are based on throughput, the calculated VOC emissions represent the total emissions from Dried Wood Handling 1 and 2 (ES-DWH-1 and ES-DWH-2). Table 1 Facility-wide Criteria and CO2e Emissions Summary Enviva Pellets, LLC - Northampton Plant Emission Unit ID Source Description Control Device ID Control Device Description -- The Dryer #2, Furnace #2, Dryer Duct Burners (IES-DDB-1 through 4), Propane Vaporizers, and IES-TK-4 have not yet been installed. 82.5 28.9 28.9 31.4 -- 28.4 16.2 19.5 152,709CD-HM-CYC-1 through 8; CD-HM-BF-1 through 3; CD-WESP-1; CD-RTO-1 Cyclones; Baghouses; WESP; RTO CD-WESP-1; CD-RTO-1 WESP; RTO 79.9 ----0.41 0.36 0.32 Page 1 of 30 Description CD-RTO-1 and CD-RTO-2 1 ES- FURNACE BYP-1 IES-DDB-1 and -21 ES- FURNACE BYP-21 IES-DDB-3 and -41 IES-PVAP1 CD-RCO-2 ES-DWH-1 and -2 IES-GN-1 IES-FWP IES-EPWC IES-BARK Total (tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy)(tpy) Acetaldehyde Y 9.24E-01 3.04E-04 ----3.18E-01 -2.68E-05 1.56E-05 --1.24 Acrolein Y 6.82E-01 1.47E-03 ----6.30E-01 -3.23E-06 1.88E-06 --1.31 Formaldehyde Y 9.19E-01 1.61E-03 -----1.47E-01 2.12E-01 4.12E-05 2.40E-05 --1.28 Methanol Y 2.30E-01 -----2.68E-01 4.93E-01 --1.99E-01 5.96E-02 1.25 Phenol Y 4.05E-02 1.87E-05 ----3.18E-01 -----0.36 Propionaldehyde Y 8.43E-02 2.24E-05 ----1.84E-01 5.31E-02 ----0.32 Acetophenone Y 0.00E+00 1.17E-09 ----------1.17E-09 Ammonia N 0.00E+00 -----1.43E-01 -----0.14 Antimony and compounds Y 0.00E+00 2.90E-06 ----------2.90E-06 Arsenic Y 0.00E+00 8.07E-06 ----8.97E-06 -----1.70E-05 Benzene Y 0.00E+00 ------3.25E-02 -3.26E-05 1.90E-05 --3.25E-02 Benzo(a)pyrene Y 0.00E+00 9.53E-07 ----5.38E-08 -1.37E-06 3.83E-09 --2.38E-06 Beryllium Y 0.00E+00 4.03E-07 ----5.38E-07 -----9.41E-07 1,3-Butadiene Y --------1.37E-06 7.96E-07 --2.16E-06 Cadmium Y 0.00E+00 1.50E-06 ----4.93E-05 -----5.08E-05 Carbon tetrachloride Y 0.00E+00 1.65E-05 ----------1.65E-05 Chlorine Y 0.00E+00 2.90E-04 ----------2.90E-04 Chlorobenzene Y 0.00E+00 1.21E-05 ----------1.21E-05 Chloroform Y 0.00E+00 -----------0.00 Chromium VI Y 0.00E+00 -----6.28E-05 -----6.28E-05 Chromium–Other compounds Y 0.00E+00 7.70E-06 ----------7.70E-06 Cobalt compounds Y 0.00E+00 2.38E-06 ----3.77E-06 -----6.15E-06 Dichlorobenzene Y 0.00E+00 -----5.38E-05 -----5.38E-05 Dichloroethane, 1,2-Y 0.00E+00 1.06E-05 ----------1.06E-05 Dichloropropane, 1,2-Y 0.00E+00 1.21E-05 ----------1.21E-05 Dinitrophenol, 2,4-Y 0.00E+00 6.60E-08 ----------6.60E-08 Di(2-ethylhexyl)phthalate Y 0.00E+00 5.30E-09 ----------5.30E-09 Ethyl benzene Y 0.00E+00 1.14E-05 ----------1.14E-05 Hexachlorodibenzo-p-dioxin, 1,2,3,6,7,8-N 0.00E+00 -----------0.00 Hexane Y 0.00E+00 -----8.07E-02 -----8.07E-02 Indeno(1,2,3-cd)pyrene Y 0.00E+00 -----8.07E-08 -----8.07E-08 Hydrochloric acid Y 0.00E+00 6.97E-03 ----------6.97E-03 Lead Y 0.00E+00 -----2.24E-05 -----2.24E-05 Manganese Y 0.00E+00 5.87E-04 ----1.70E-05 -----6.04E-04 Mercury Y 0.00E+00 1.28E-06 ----1.17E-05 -----1.29E-05 Methyl bromide Y 0.00E+00 5.50E-06 ----------5.50E-06 Methyl chloride Y 0.00E+00 8.43E-06 ----------8.43E-06 Methyl ethyl ketone N 0.00E+00 -----------0.00 3-Methylchloranthrene Y 0.00E+00 -----8.07E-08 -----8.07E-08 Methylene chloride Y 0.00E+00 -----------0.00 Naphthalene Y 4.30E-06 3.56E-05 ----2.73E-05 -----6.72E-05 Nickel Y 0.00E+00 1.21E-05 ----9.42E-05 -----1.06E-04 Nitrophenol, 4-Y 0.00E+00 4.03E-08 ----------4.03E-08 Pentachlorophenol Y 0.00E+00 1.87E-08 ----------1.87E-08 Perchloroethylene Y 0.00E+00 1.39E-05 ----------1.39E-05 Phosphorus metal, yellow or white Y 0.00E+00 9.90E-06 ----------9.90E-06 Polychlorinated biphenyls Y 0.00E+00 2.99E-09 ----------2.99E-09 Polycyclic Organic Matter Y 0.00E+00 4.58E-05 -------1.83E-03 -5.87E-06 3.42E-06 --1.88E-03 Selenium compounds Y 0.00E+00 1.03E-06 ----1.08E-06 -----2.10E-06 Styrene Y 0.00E+00 -----------0.00 Tetrachlorodibenzo-p-dioxin, 2,3,7,8-Y 0.00E+00 3.15E-12 ----------3.15E-12 Toluene Y 0.00E+00 -----1.52E-04 -1.43E-05 8.33E-06 --1.75E-04 Trichloroethane, 1,1,1-Y 0.00E+00 1.14E-05 ----------1.14E-05 Trichloroethylene Y 0.00E+00 3.38E-06 ----------3.38E-06 Trichlorofluoromethane N 0.00E+00 -----------0.00 Trichlorophenol, 2,4,6-Y 0.00E+00 8.07E-09 ---------8.07E-09 Vinyl chloride Y 0.00E+00 6.60E-06 ----------6.60E-06 Xylene Y 0.00E+00 -------9.95E-06 5.81E-06 --1.58E-05 TOTAL HAP 2.9 0.011 0.000 0.000 0.000 0.000 1.98 0.76 0.0001 0.0001 0.20 0.06 5.9 Notes: 1.ES-DRYER-2 and CD-RTO-2, IES-DDB-1 through -4, ES-FURNACEBYP-2, and IES-PVAP have not been installed at this time. HAP Table 2 Facility-Wide HAP Emissions Summary Enviva Pellets, LLC - Northampton Plant Page 2 of 30 Calculation Basis Annual Dried Wood Throughput1 397,375 ODT/year Max. Hourly Dried Wood Throughput of Dryer 71.71 ODT/hr Burner Heat Input 175.3 MMBtu/hr Percent Hardwood 79.8% Percent Softwood 20.2% Annual Operation 7,376 hr/yr Annual Heat Input 1,293,013 MMBtu/yr Number of RTO Burners 4 RTO Burner Rating 6.2 MMBtu/hr RTO Control Efficiency 97.50% Criteria Emissions 2021 Actual Emissions(tpy) CO 0.4 lb/ODT Note 2 79.5 NOX 22.23 lb/hr Note 2 82.0 PM/PM10/PM2.5 (Filterable + Condensable)7.6 lb/hr Note 4 28.0 SO2 0.025 lb/MMBtu AP-42, Section 1.63 16.2 Total VOC (as propane)2.64 lb/ODT Note 5 13.1 1 Annual dried wood throughput is based on total facility production. 2 Emissions based on process knowledge and/or information from NCASI database and includes appropriate contingency based on engineering judgement 3 No emission factor is provided in AP-42, Section 10.6.2 for SO2 for rotary dryers. Enviva has conservatively calculated SO2 emissions based upon the heat input of the dryer burners using an emission factor for wood combustion from AP-42, Section 1.6. 4 Particulate emission factor is based on process knowledge and an appropriate contingency based on engineering judgement. 5 VOC emission factor based on process knowledge and an appropriate contingency based on engineering judgement. Factor represents uncontrolled emi Notes: Table 3a Dryer #1 (ES-DRYER-1, CD-WESP-1, CD-RTO-1) Enviva Pellets, LLC - Northampton Plant 2021 Actual Criteria Emissons Pollutant Biomass Emission Factor Units Emission Factor Source Page 3 of 30 Table 3a Dryer #1 (ES-DRYER-1, CD-WESP-1, CD-RTO-1) Enviva Pellets, LLC - Northampton Plant 2021 Actual Criteria Emissons hr - hour lb - pound RTO - regenerative thermal oxidizer MMBtu - Million British thermal units SO2 - sulfur dioxide MMscf - Million standard cubic feet tpy - tons per year NOX - nitrogen oxides VOC - volatile organic compound ODT - oven dried tons WESP - wet electrostatic precipitator PM - particulate matter yr - year PM10 - particulate matter with an aerodynamic diameter less than 10 microns References: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. U.S. EPA. AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03. PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less Abbreviations: Page 4 of 30 Calculation Basis Hourly Throughput1 150.0 ODT/hr Annual Throughput 397,375 ODT/yr Hours of Operation 7,376 hr/yr RTO Control Efficiency 97.50% VOC Emissions Emission Factor2 2021 Actual Emissions3 (lb/ODT)(tpy) Acetaldehyde 75-07-0 Y Y Y 8.4E-03 0.042 Acrolein 107-02-8 Y Y Y 1.6E-02 0.08 Formaldehyde 50-00-0 Y Y Y 4.8E-03 0.024 Methanol 67-56-1 Y N Y 3.7E-02 0.19 Phenol 108-95-2 Y Y Y 4.6E-03 0.023 Propionaldehyde 123-38-6 Y N Y 1.2E-03 0.006 0.166 0.36 Total VOC (as propane)--N/A N/A Y 0.32 1.60 1.The max hourly throughput is based on the maximum capacity for the 2 existing green hammermills ratioed up to reflect 3 additional hammermills (i.e. 119.4 tph * 5/2 * (1 - 50% moisture content) = 150 ODT/hr). 2. 3. Thermally Generated Criteria Pollutant Emissions Maximum high heating value of VOC constituents 0.018 MMBtu/lb Uncontrolled VOC emissions 64 tons/yr Uncontrolled VOC emissions 48 lb/hr Heat input of uncontrolled VOC emissions 2,373 MMBtu/yr Heat input of uncontrolled VOC emissions 0.9 MMBtu/hr 2021 Actual Emissions (tpy) CO 8.2E-02 0.10 NOX 9.8E-02 0.12 1. CAS - chemical abstract service RTO - Regenerative Thermal Oxidizer HAP - hazardous air pollutant TAP - toxic air pollutant hr - hour tph - tons per hour lb - pound tpy - tons per year MMBtu - Million British thermal units VOC - volatile organic compound MMscf - Million standard cubic feet WESP - wet electrostatic precipitator NC - North Carolina yr - year ODT - oven dried tons Reference: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Abbreviations: Pollutant Emission Factor (lb/MMBtu)1 HAP Notes: CO and NOx emission factors are from AP-42, Fifth Edition, Volume 1, Chapter 1.4 - Natural Gas Combustion, 07/98 for small boilers. Emission factors based on process knowledge and an appropriate contingency based on engineering judgement. The emission factors represent uncontrolled emissions. Notes: Pollutant CAS No.NC TAP VOC Total HAP Emissions Total TAP Emissions Green Hammermills (ES-GHM-1 through ES-GHM-5, CD-WESP-1, CD-RTO-1) Table 3bi 2021 Actual VOC Emissons Enviva Pellets, LLC - Northampton Plant The emissions from the green hammermills are primarily controlled by the RTO on the existing dryer line (CD-RTO-1). Page 5 of 30 Calculation Basis Total Plant Throughput 397,375 ODT/yr % of Total Throughput to the Hammermills 100% Hours of Operation 7,376 hr/yr Hammermills Annual Throughput 397,375 ODT/yr Hammermills Hourly Throughput 144 ODT/hr Number of RTO Burners 4 RTO Burner Rating 6.2 MMBtu/hr Control Efficiency1 97.5% VOC and HAP Emissions Emission Factor2 2021 Actual Emissions3 (lb/ODT)(tpy) Acetaldehyde 75-07-0 Y Y Y 0.0073 0.036 Acrolein 107-02-8 Y Y Y 0.0092 0.046 Formaldehyde 50-00-0 Y Y Y 0.0071 0.035 Methanol 67-56-1 Y N Y 0.0071 0.035 Phenol 108-95-2 Y Y Y 0.0028 0.014 Propionaldehyde 123-38-6 Y N Y 0.012 0.06 Total HAP Emissions 0.23 Total TAP Emissions 0.13 Total VOC (as propane)----Y 0.77 3.80 1. 2. 3. Thermally Generated Criteria Pollutant Emissions Maximum high heating value of VOC constituents 0.018 MMBtu/lb Uncontrolled VOC emissions 152 tons/yr Uncontrolled VOC emissions 110 lb/hr Heat input of uncontrolled VOC emissions 5,623 MMBtu/yr Heat input of uncontrolled VOC emissions 2 MMBtu/hr 2021 Actual Emissions (tpy) CO 0.082 0.23 NOX 0.098 0.28 1. CAS - chemical abstract service NOX - nitrogen oxides CO - carbon monoxide ODT - oven dried tons HAP - hazardous air pollutant RTO - Regenerative Thermal Oxidizer hr - hour TAP - toxic air pollutant lb - pound tpy - tons per year MMBtu - Million British thermal units VOC - volatile organic compound MMscf - Million standard cubic feet yr - year NC - North Carolina References: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Abbreviations: VOC The emissions from the dry hammermills are routed to the Dryer 1 Furnace, Dryer 1 WESP, or a combination of the two then controlled by the RTO on the existing dryer line (CD- RTO-1). Table 3bii 2021 Actual Emissions at Outlet of RTO-1 Stack (CD-RTO-1) Dry Hammermills (ES-HM-1 through ES-HM-8) Enviva Pellets, LLC - Northampton Plant HAPPollutantCAS No.NC TAP Notes: Notes: A 97.5% control efficiency is applied to the potential emissions for the RTO. Emission factors based on process knowledge and an appropriate contingency based on engineering judgement. The emission factors represent uncontrolled emissions. Pollutant Emission Factor (lb/MMBtu)1 Emission factor for CO and NOx from AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Emission factors converted from lb/MMscf to lb/MMBtu based on assumed heating value of 1,020 Btu/scf for natural gas per AP-42 Section 1.4. Page 6 of 30 Calculation Basis Hammermills Hourly Throughput 28 ODT/hr Hammermills Annual Throughput 107,956 ODT/yr RTO Control Efficiency1 97.5% PM, VOC, and HAP Emissions Emission Factor2 2021 Actual Emissions3 (lb/ODT)(tpy) Acetaldehyde 75-07-0 Y Y Y 0.0073 0.010 Acrolein 107-02-8 Y Y Y 0.0092 0.012 Formaldehyde 50-00-0 Y Y Y 0.0071 0.010 Methanol 67-56-1 Y N Y 0.0071 0.010 Phenol 108-95-2 Y Y Y 0.0028 0.004 Propionaldehyde 123-38-6 Y N Y 0.0124 0.017 Total HAP Emissions 0.06 Total TAP Emissions 0.036 Total VOC (as propane)----Y 0.765 1.03 1. 2. 3. Thermally Generated Criteria Pollutant Emissions Maximum high heating value of VOC constituents 0.018 MMBtu/lb Uncontrolled VOC emissions 41 tons/yr Uncontrolled VOC emissions 21 lb/hr Heat input of uncontrolled VOC emissions 1,527 MMBtu/yr Heat input of uncontrolled VOC emissions 0.40 MMBtu/hr 2021 Actual Emissions (tpy) CO 0.082 0.06 NOX 0.098 0.07 1. CAS - chemical abstract service NOX - nitrogen oxides CO - carbon monoxide ODT - oven dried tons HAP - hazardous air pollutant RTO - Regenerative Thermal Oxidizer hr - hour TAP - toxic air pollutant lb - pound tpy - tons per year MMBtu - Million British thermal units VOC - volatile organic compound MMscf - Million standard cubic feet yr - year NC - North Carolina References: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Table 3biii 2021 Actual Emissions at Outlet of RTO-1 Stack (CD-RTO-1) Dry Shavings Hammermills (ES-DSHM-1 and -2) Enviva Pellets, LLC - Northampton Plant Abbreviations: Pollutant Emission Factor (lb/MMBtu)1 Emission factor for CO and NOx from AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Emission factors converted from lb/MMscf to lb/MMBtu based on assumed heating value of 1,020 Btu/scf for natural gas per AP-42 Section 1.4. Notes: A 97.5% control efficiency is applied to the potential emissions for the RTO. Emission factors based on process knowledge and an appropriate contingency based on engineering judgement. The emission factors represent uncontrolled emissions. The emissions from the two dry shavings hammermills are routed to the Dryer 1 Furnace, Dryer 1 WESP, or a combination of the two then controlled by the RTO on the existing dryer line (CD-RTO-1). Pollutant CAS No.HAP NC TAP VOC Notes: Page 7 of 30 Calculation Basis Annual Dried Wood Throughput10 397,375 ODT/year Max. Hourly Dried Wood Throughput of Dryer 71.71 ODT/hr Burner Heat Input 175.3 MMBtu/hr Percent Hardwood 79.8% Percent Softwood 20.2% Annual Operation 7,376 hr/yr Annual Heat Input 1,293,013 MMBtu/yr Number of RTO Burners 4 RTO Burner Rating 6.2 MMBtu/hr RTO Control Efficiency 97.50% HAP and TAP Emissions 2021 Actual Emissions (tpy) Dryer Burner - Biomass Source Acetaldehyde Y Y Y 1.7E-01 lb/ODT 1 0.84 Acrolein Y Y Y 1.1E-01 lb/ODT 1 0.55 Formaldehyde Y Y Y 1.4E-01 lb/ODT 1 0.71 Methanol Y N Y 1.0E-01 lb/ODT 1 0.52 Phenol Y Y Y 5.8E-02 lb/ODT 1 0.29 Propionaldehyde Y N Y 3.9E-02 lb/ODT 1 0.19 Acetophenone Y N Y 3.2E-09 lb/MMBtu 2,3 5.2E-08 Antimony and compounds Y N N 7.9E-06 lb/MMBtu 2,4 3.7E-04 Arsenic Y Y N 2.2E-05 lb/MMBtu 2,4 1.0E-03 Benzene Y Y Y 4.2E-03 lb/MMBtu 2,3 6.8E-02 Benzo(a)pyrene Y Y Y 2.6E-06 lb/MMBtu 2,3 4.2E-05 Beryllium Y Y N 1.1E-06 lb/MMBtu 2,4 5.2E-05 Cadmium Y Y N 4.1E-06 lb/MMBtu 2,4 1.9E-04 Carbon tetrachloride Y Y Y 4.5E-05 lb/MMBtu 2,3 7.3E-04 Chlorine Y Y N 7.9E-04 lb/MMBtu 2,9 5.1E-01 Chlorobenzene Y Y Y 3.3E-05 lb/MMBtu 2,3 5.3E-04 Chloroform Y Y Y 2.8E-05 lb/MMBtu 2,3 4.5E-04 Chromium VI -5 Y N 3.5E-06 lb/MMBtu 2,4,5 1.6E-04 Chromium–Other compounds Y N N 1.8E-05 lb/MMBtu 2,4 8.2E-04 Cobalt compounds Y N N 6.5E-06 lb/MMBtu 2,4 3.0E-04 Dichloroethane, 1,2-Y Y Y 2.9E-05 lb/MMBtu 2,3 4.7E-04 Dichloropropane, 1,2-Y N Y 3.3E-05 lb/MMBtu 2,3 5.3E-04 Dinitrophenol, 2,4-Y N Y 1.8E-07 lb/MMBtu 2,3 2.9E-06 Di(2-ethylhexyl)phthalate Y Y Y 4.7E-08 lb/MMBtu 2,3 7.6E-07 Ethyl benzene Y N Y 3.1E-05 lb/MMBtu 2,3 5.0E-04 Hexachlorodibenzo-p-dioxin, 1,2,3,6,7,8-N Y Y 1.8E-11 lb/MMBtu 2,3 2.9E-10 Hydrochloric acid Y Y N 1.9E-02 lb/MMBtu 2,6 1.2 Lead Y N N 4.8E-05 lb/MMBtu 2,4 2.2E-03 Manganese Y Y N 1.6E-03 lb/MMBtu 2,4 7.5E-02 Mercury Y Y N 3.5E-06 lb/MMBtu 2,4 1.6E-04 Methyl bromide Y N Y 1.5E-05 lb/MMBtu 2,3 2.4E-04 Methyl chloride Y N Y 2.3E-05 lb/MMBtu 2,3 3.7E-04 Methyl ethyl ketone N Y Y 5.4E-06 lb/MMBtu 2,3 8.7E-05 Methylene chloride Y Y Y 2.9E-04 lb/MMBtu 2,3 4.7E-03 Naphthalene Y N Y 9.7E-05 lb/MMBtu 2,3 1.6E-03 Nickel Y Y N 3.3E-05 lb/MMBtu 2,4 1.5E-03 Nitrophenol, 4-Y N Y 1.1E-07 lb/MMBtu 2,3 1.8E-06 Pentachlorophenol Y Y N 5.1E-08 lb/MMBtu 2 8.2E-07 Perchloroethylene Y Y N 3.8E-05 lb/MMBtu 2 6.1E-04 Phosphorus metal, yellow or white Y N N 2.7E-05 lb/MMBtu 2,4 1.3E-03 Polychlorinated biphenyls Y Y Y 8.2E-09 lb/MMBtu 2,3 1.3E-07 Polycyclic Organic Matter Y N N 1.3E-04 lb/MMBtu 2 2.0E-03 Selenium compounds Y N N 2.8E-06 lb/MMBtu 2,4 1.3E-04 Styrene Y Y Y 1.9E-03 lb/MMBtu 2,3 3.1E-02 Tetrachlorodibenzo-p-dioxin, 2,3,7,8-Y Y Y 8.6E-12 lb/MMBtu 2,3 1.4E-10 Toluene Y Y Y 3.0E-05 lb/MMBtu 2,3 4.8E-04 Trichloroethane, 1,1,1-Y Y N 3.1E-05 lb/MMBtu 2 5.0E-04 Trichloroethylene Y Y Y 3.0E-05 lb/MMBtu 2,3 4.8E-04 Trichlorofluoromethane N Y Y 4.1E-05 lb/MMBtu 2,3 6.6E-04 Trichlorophenol, 2,4,6-Y N Y 2.2E-08 lb/MMBtu 2,3 3.6E-07 Vinyl chloride Y Y Y 1.8E-05 lb/MMBtu 2,3 2.9E-04 Xylene Y Y Y 2.5E-05 lb/MMBtu 2,3 4.0E-04 Total HAP Emissions (related to biomass)5.03 Total TAP Emissions (related to biomass)4.31 Table 3c Enviva Pellets, LLC - Northampton Plant Dryer #1 (ES-DRYER-1, CD-WESP-1, CD-RTO-1) Pollutant HAP NC TAP VOC Emission Factor Units Footnote 2021 Actual HAP and TAP Emissions Page 8 of 30 Table 3c Enviva Pellets, LLC - Northampton Plant Dryer #1 (ES-DRYER-1, CD-WESP-1, CD-RTO-1) 2021 Actual HAP and TAP Emissions 2021 Actual Emissions (tpy) RTO - Natural Gas/Propane Source 2-Methylnaphthalene Y N Y 2.4E-05 lb/MMscf 7 2.2E-06 3-Methylchloranthrene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 7,12-Dimethylbenz(a)anthracene Y N Y 1.6E-05 lb/MMscf 7 1.4E-06 Acenaphthene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Acenaphthylene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Acetaldehyde Y Y Y 1.5E-05 lb/MMscf 7 1.4E-06 Acrolein Y Y Y 1.8E-05 lb/MMscf 7 1.6E-06 Ammonia N Y N 3.2 lb/MMscf 7 2.9E-01 Anthracene Y N Y 2.4E-06 lb/MMscf 7 2.2E-07 Arsenic Y Y N 2.0E-04 lb/MMscf 7 1.8E-05 Benz(a)anthracene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Benzene Y N Y 7.1E-04 lb/MMBtu 8 6.5E-02 Benzo(a)pyrene Y Y Y 1.2E-06 lb/MMscf 7 1.1E-07 Benzo(b)fluoranthene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Benzo(g,h,i)perylene Y N Y 1.2E-06 lb/MMscf 7 1.1E-07 Benzo(k)fluoranthene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Beryllium Y Y N 1.2E-05 lb/MMscf 7 1.1E-06 Cadmium Y Y N 1.1E-03 lb/MMscf 7 9.9E-05 Chromium VI Y N N 1.4E-03 lb/MMscf 7 1.3E-04 Chrysene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Cobalt Y N N 8.4E-05 lb/MMscf 7 7.5E-06 Dibenzo(a,h)anthracene Y N Y 1.2E-06 lb/MMscf 7 1.1E-07 Dichlorobenzene Y Y Y 1.2E-03 lb/MMscf 7 1.1E-04 Fluoranthene Y N Y 3.0E-06 lb/MMscf 7 2.7E-07 Fluorene Y N Y 2.8E-06 lb/MMscf 7 2.5E-07 Formaldehyde Y Y Y 1.5E-03 lb/MMBtu 8 1.4E-01 Hexane Y Y Y 1.8 lb/MMscf 7 1.6E-01 Indeno(1,2,3-cd)pyrene Y N Y 1.8E-06 lb/MMscf 7 1.6E-07 Lead Y N N 5.0E-04 lb/MMscf 7 4.5E-05 Manganese Y Y N 3.8E-04 lb/MMscf 7 3.4E-05 Mercury Y Y N 2.6E-04 lb/MMscf 7 2.3E-05 Naphthalene Y N Y 6.1E-04 lb/MMscf 7 5.5E-05 Nickel Y Y N 2.1E-03 lb/MMscf 7 1.9E-04 Polycyclic Organic Matter Y N N 4.0E-05 lb/MMBtu 8 3.7E-03 Phenanthrene Y N Y 1.7E-05 lb/MMscf 7 1.5E-06 Pyrene Y N Y 5.0E-06 lb/MMscf 7 4.5E-07 Selenium compounds Y N N 2.4E-05 lb/MMscf 7 2.2E-06 Toluene Y Y Y 3.4E-03 lb/MMscf 7 3.0E-04 Total HAP Emissions (related to natural gas/propane)0.37 Total TAP Emissions (related to natural gas/propane)0.59 1. 2. 3. 4. WESP Control Efficiency for metal HAP 92.8% 5. 6. WESP HCl Control Efficiency 90.00% 7. 8. 9.It was assumed that chlorine is not oxidized in the RTO. 10.Annual dried wood throughput is based on total facility production. Emission factors based on process knowledge and an appropriate contingency based on engineering judgement. The emission factors represent uncontrolled emissions. Pollutant HAP Notes: Emission factors (criteria and HAP/TAP) for wood combustion in a stoker boiler from NCDAQ Wood Waste Combustion Spreadsheet/AP-42, Fifth Edition, Volume 1, Chapter 1.6 - Wood Residue Combustion in Boilers, 09/03. The control efficiency of 97.5% for the RTO is applied to all VOC hazardous and toxic pollutants. The control efficiency of the wet electrostatic precipitator (WESP) for filterable particulate matter is applied to all metal hazardous and toxic pollutants from the dryer and duct burners. Actual design filterable efficiency is estimated to 96.4%, but 92.75% is assumed for toxics permitting. Chromium VI is a subset of chromium compounds, which is accounted for separately as a HAP. As such, Chromium VI is only calculated as a TAP. The WESP employs a caustic solution in its operation in which hydrochloric acid will have high water solubility. This caustic solution will neutralize the acid and effectively control it by 90%, per conversation on October 18, 2011 with Steven A. Jaasund, P.E. of Lundberg Associates, a manufacturer of WESPs. Emission factors for natural gas combustion are from NCDAQ Natural Gas Combustion Spreadsheet and AP-42, Fifth Edition, Volume 1, Chapter 1.4 - Natural Gas Combustion, 07/98. The emission factors for acetaldehyde, acrolein, and ammonia are cited in the NCDAQ spreadsheet as being sourced from the USEPA's WebFIRE database. The RTO burners can fire either natural gas or propane; Propane is worst-case for these HAP emissions. Emission factors for propane combustion from the South Coast Air Quality Management District's Air Emissions Reporting Tool for external combustion equipment fired with LPG. NC TAP VOC Emission Factor Units Footnote Page 9 of 30 Table 3c Enviva Pellets, LLC - Northampton Plant Dryer #1 (ES-DRYER-1, CD-WESP-1, CD-RTO-1) 2021 Actual HAP and TAP Emissions HAP - hazardous air pollutant RTO - regenerative thermal oxidizer hr - hour TAP - toxic air pollutant lb - pound tpy - tons per year MMBtu - Million British thermal units VOC - volatile organic compound MMscf - Million standard cubic feet WESP - wet electrostatic precipitator NC - North Carolina yr - year ODT - oven dried tons References: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. U.S. EPA. AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03. U.S. EPA WebFIRE database available at: https://cfpub.epa.gov/webfire/ South Coast Air Quality Management District. AER Reporting tool. Emission factors available in the Help and Support Manual at: http://www.aqmd.gov/home/rules-compliance/compliance/annual-emission-reporting Abbreviations: Page 10 of 30 PM PM10 PM2.5 (cfm)(gr/cf)(hours)PM10 (% of PM) PM2.5 (% of PM)(tpy)(tpy)(tpy) ES-HM-1 through 3 Dry Hammermills 1 through 3 CD-HM-BF-1 One (1) existing baghouse3 45,000 0.004 7,376 100%40%0.28 0.28 0.11 ES-HM-4 through 6 Dry Hammermills 4 through 6 CD-HM-BF-2 One (1) existing baghouse3 45,000 0.004 7,376 100%40%0.28 0.28 0.11 ES-HM-7 and 8 ES-DSHM-1 and -2 Dry Hammermills 7 through 8 Dry Shavings Hammermills 1 and 2 CD-HM-BF-3 One (1) existing baghouse3 45,000 0.004 7,376 100%40%0.28 0.28 0.11 Notes: 1. ES-HM-1 through 8, ES-DSHM-1 and 2, and the associated baghouses are not release points to the atmosphere. These calculations estimate the contribution of PM emissions from these units that will be emitted at CD-RTO-1. 2.Filter, Vent, and Cyclone inlet flow rate (cfm) provided by design engineering firm (Mid-South Engineering Co.). The exit flowrate was conservatively assumed to be the same as the inlet flowrate. 3.Pollutant loading provided by Aircon. 4.No speciation data is available for PM10. Therefore, it is conservatively assumed to be equal to total PM. PM2.5 speciation based on NCASI data for similar wood products sources. 5.Potential emissions assume a 95% control efficiency for Dryer Line #1 wet electrostatic precipitator (CD-WESP-1). Abbreviations: cf - cubic feet lb - pound cfm - cubic feet per minute PM - particulate matter ES - Emission Sources PM10 - particulate matter with an aerodynamic diameter less than 10 microns IES - Insignificant Emission Source PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less gr - grain tpy - tons per year hr - hour Reference: U.S. EPA. AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03 Exit Grain Loading2 Annual Operation Particulate Speciation 2021 Actual Emissions5 Table 3d 2021 Actual PM Emissions from Baghouses/Cyclones Enviva Pellets Northampton, LLC Emission Unit ID 1 Source Description Control Device ID Control Device Description Exhaust Flow Rate1 Page 11 of 30 Calculation Basis Hourly Heat Input Capacity 26.3 MMBtu/hr Annual Heat Input Capacity 226 MMBtu/yr Hours of Operation1 9 hr/yr Criteria Pollutant Emissions - Furnace Bypass (Cold Start-up) 2021 Actual Emissions (tpy) CO 0.60 0.07 NOX 0.22 0.02 SO2 0.025 0.003 VOC 0.017 0.002 Total PM 0.58 0.07 Total PM10 0.52 0.06 Total PM2.5 0.45 0.05 1. 2. Notes: Furnace "cold start-up" hours of operation in 2021. CO, NOX, SO2, PM, and VOC emission rates based on AP-42, Chapter 1.6 - Wood Residue Combustion in Boilers, 09/03 for bark/bark and wet wood/wet wood-fired boilers. VOC emission factor excludes formaldehyde. Pollutant Emission Factor (lb/MMBtu)2 Table 3e 2021 Actual Emissions Dryer #1 Furnace Bypass (ES-FURNACEBYP-1) (Cold Start-up)1 Enviva Pellets, LLC - Northampton Plant Page 12 of 30 Table 3e 2021 Actual Emissions Dryer #1 Furnace Bypass (ES-FURNACEBYP-1) (Cold Start-up)1 Enviva Pellets, LLC - Northampton Plant HAP Emissions - Furnace Bypass (Cold Start-up) 2021 Actual Emissions (tpy) Acetaldehyde 8.30E-04 9.36E-05 Acrolein 4.00E-03 4.51E-04 Formaldehyde 4.40E-03 4.96E-04 Phenol 5.10E-05 5.75E-06 Propionaldehyde 6.10E-05 6.88E-06 Acetophenone 3.2E-09 3.61E-10 Antimony and compounds 7.9E-06 8.91E-07 Arsenic 2.2E-05 2.48E-06 Benzo(a)pyrene 2.6E-06 2.93E-07 Beryllium 1.1E-06 1.24E-07 Cadmium 4.1E-06 4.63E-07 Carbon tetrachloride 4.5E-05 5.08E-06 Chlorine 7.9E-04 8.91E-05 Chlorobenzene 3.3E-05 3.72E-06 Chromium–Other compounds 2.1E-05 2.37E-06 Cobalt compounds 6.5E-06 7.33E-07 Dinitrophenol, 2,4-1.8E-07 2.03E-08 Di(2-ethylhexyl)phthalate 4.7E-08 5.30E-09 Ethyl benzene 3.1E-05 3.50E-06 Dichloroethane, 1,2-2.9E-05 3.27E-06 Hydrochloric acid 1.9E-02 2.14E-03 Lead 4.8E-05 5.41E-06 Manganese 1.6E-03 1.80E-04 Mercury 3.5E-06 3.95E-07 Methyl bromide 1.5E-05 1.69E-06 Methyl chloride 2.3E-05 2.59E-06 Trichloroethane, 1,1,1-3.1E-05 3.50E-06 Naphthalene 9.7E-05 1.09E-05 Nickel 3.3E-05 3.72E-06 Nitrophenol, 4-1.1E-07 1.24E-08 Pentachlorophenol 5.1E-08 5.75E-09 Perchloroethylene 3.8E-05 4.29E-06 Phosphorus metal, yellow or white 2.7E-05 3.05E-06 Polychlorinated biphenyls 8.2E-09 9.19E-10 Polycyclic Organic Matter 1.3E-04 1.41E-05 Dichloropropane, 1,2-3.3E-05 3.72E-06 Selenium compounds 2.8E-06 3.16E-07 Tetrachlorodibenzo-p-dioxin, 2,3,7,8-8.6E-12 9.70E-13 Trichloroethylene 3.0E-05 3.38E-06 Trichlorophenol, 2,4,6-2.2E-08 2.48E-09 Vinyl chloride 1.8E-05 2.03E-06 Total HAP Emissions (Biomass Combustion)3.55E-03 1. CO - carbon monoxide PM - particulate matter HAP - hazardous air pollutant PM10 - particulate matter with an aerodynamic diameter less than 10 micron hr - hour PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or le lb - pound SO2 - sulfur dioxide MMBtu - Million British thermal units tpy - tons per year NOX - nitrogen oxides VOC - volatile organic compound ODT - oven dried tons yr - year Reference: AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03 Pollutant Emission Factor (lb/MMBtu)1 Notes: Emission factors for wood combustion in a stoker boiler from AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03. Abbreviations: Page 13 of 30 Calculation Basis Hourly Heat Input Capacity 10 MMBtu/hr Annual Heat Input Capacity 508 MMBtu/yr Hours of Operation1 51 hr/yr Criteria Pollutant and Greenhouse Gas Emissions per Dryer Line 2021 Actual Emissions (tpy) CO 0.60 0.15 NOX 0.22 0.06 SO2 0.025 0.006 VOC 0.017 0.004 Total PM 0.58 0.15 Total PM10 0.52 0.13 Total PM2.5 0.45 0.11 1. 2. Table 3f 2021 Actual Emissions Dryer #1 Furnace Bypass (ES-FURNACEBYP-1) (Idle Mode)1 Enviva Pellets, LLC - Northampton Plant Notes: Furnace "idle mode" hours of oepration in 2021. Idle mode is defined as operation at up to a maximum heat input rate of 5 MMBtu.hr. Pollutant Emission Factor (lb/MMBtu)2 CO, NOX, SO2, PM, PM10, PM2.5, and VOC emission rates based on AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03 for bark/bark and wet wood/wet wood-fired boilers. PM10 and PM2.5 factors equal to the sum of the filterable and condensible factors from Table 1.6-1. VOC emission factor excludes formaldehyde. Page 14 of 30 Table 3f 2021 Actual Emissions Dryer #1 Furnace Bypass (ES-FURNACEBYP-1) (Idle Mode)1 Enviva Pellets, LLC - Northampton Plant HAP Emissions per Dryer Line 2021 Actual Emissions (tpy) Acetaldehyde 8.30E-04 2.11E-04 Acrolein 4.00E-03 1.02E-03 Formaldehyde 4.40E-03 1.12E-03 Phenol 5.10E-05 1.29E-05 Propionaldehyde 6.10E-05 1.55E-05 Acetophenone 3.20E-09 8.12E-10 Antimony and compounds 7.90E-06 2.01E-06 Arsenic 2.20E-05 5.58E-06 Benzo(a)pyrene 2.60E-06 6.60E-07 Beryllium 1.10E-06 2.79E-07 Cadmium 4.10E-06 1.04E-06 Carbon tetrachloride 4.50E-05 1.14E-05 Chlorine 7.90E-04 2.01E-04 Chlorobenzene 3.30E-05 8.38E-06 Chromium–Other compounds 2.10E-05 5.33E-06 Cobalt compounds 6.50E-06 1.65E-06 Dinitrophenol, 2,4-1.80E-07 4.57E-08 Bis(2-ethylhexyl)phthalate 4.70E-08 1.19E-08 Ethyl benzene 3.10E-05 7.87E-06 Dichloroethane, 1,2-2.90E-05 7.36E-06 Hydrochloric acid 1.90E-02 4.82E-03 Lead 4.80E-05 1.22E-05 Manganese 1.60E-03 4.06E-04 Mercury 3.50E-06 8.88E-07 Methyl bromide 1.50E-05 3.81E-06 Methyl chloride 2.30E-05 5.84E-06 Trichloroethane, 1,1,1-3.10E-05 7.87E-06 Naphthalene 9.70E-05 2.46E-05 Nickel 3.30E-05 8.38E-06 Nitrophenol, 4-1.10E-07 2.79E-08 Pentachlorophenol 5.10E-08 1.29E-08 Perchloroethylene 3.80E-05 9.65E-06 Phosphorus metal, yellow or white 2.70E-05 6.85E-06 Polychlorinated biphenyls 8.15E-09 2.07E-09 Polycyclic Organic Matter 1.25E-04 3.17E-05 Dichloropropane, 1,2-3.30E-05 8.38E-06 Selenium compounds 2.80E-06 7.11E-07 Tetrachlorodibenzo-p-dioxin, 2,3,7,8-8.60E-12 2.18E-12 Trichloroethene 3.00E-05 7.62E-06 Trichlorophenol, 2,4,6-2.20E-08 5.58E-09 Vinyl chloride 1.80E-05 4.57E-06 Total HAP Emissions (Biomass Combustion)7.99E-03 1. CO - carbon monoxide PM - particulate matter HAP - hazardous air pollutant PM10 - particulate matter with an aerodynamic diameter less than 10 microns hr - hour PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less lb - pound SO2 - sulfur dioxide MMBtu - Million British thermal units tpy - tons per year NOX - nitrogen oxides VOC - volatile organic compound ODT - oven dried tons yr - year Reference: AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03 Abbreviations: Pollutant Emission Factor (lb/MMBtu)1 Notes: Emission factors for wood combustion in a stoker boiler from AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03. Page 15 of 30 Calculation Basis Annual Throughput 505,331 ODT/yr Hourly Throughput 144 ODT/hr Hours of Operation 7,376 hr/yr Number of Burners 2 burners RCO/RTO Burner Rating 6.2 MMBtu/hr RCO/RTO Control Efficiency 95.0% Pellet Cooler and Pellet Mill Process VOC and HAP Emissions Emission Factor1 2021 Actual Emissions at RCO/RTO Outlet2 (lb/ODT)(tpy) Acetaldehyde 75-07-0 Y Y 0.025 0.32 Acrolein 107-02-8 Y Y 0.050 0.63 Formaldehyde 50-00-0 Y Y 0.006 0.08 Methanol 67-56-1 N Y 0.021 0.27 Phenol 108-95-2 Y Y 0.025 0.32 Propionaldehyde 123-38-6 N Y 0.015 0.18 Total HAP Emissions 1.80 Total TAP Emissions 1.35 Total VOC (as propane)----Y 1.4 17.85 1. 2. Thermally Generated Criteria Pollutant Emissions Maximum high heating value of VOC constituents 1.8E-02 MMBtu/lb Uncontrolled VOC emissions 357 tons/yr Uncontrolled VOC emissions 203 lb/hr Heat input of uncontrolled VOC emissions 13,206 MMBtu/yr Heat input of uncontrolled VOC emissions 4 MMBtu/hr 2021 Actual Emissions (tpy) CO 8.2E-02 0.54 NOX 9.8E-02 0.65 Natural Gas Combustion Criteria Pollutant Emissions 2021 Actual Emissions (tpy) CO 8.2E-02 3.77 NOX 4.9E-02 2.24 SO2 5.9E-04 0.03 VOC 5.4E-03 0.25 Total PM 7.5E-03 0.34 Total PM10 7.5E-03 0.34 Total PM2.5 7.5E-03 0.34 Criteria Pollutant Emissions - Propane Combustion 2021 Actual Emissions (tpy) CO 7.50 3.75 NOX 13.0 6.50 SO2 0.054 0.03 VOC 1.00 0.50 PM/PM10/PM2.5 Condensable 0.50 0.25 PM/PM10/PM2.5 Filterable 0.20 0.10 Total PM/PM10/PM2.5 0.35 Pollutant Emission Factor (lb/MMBtu)1 Pollutant Emission Factor (lb/Mgal)2 Notes: Emission factors based on process knowledge and an appropriate contingency based on engineering judgement. The emission factors represent uncontrolled emissions. A 95.0% control efficiency is applied to the potential emissions for the RTO. Pollutant Emission Factor (lb/MMBtu)1 Emissions from the pellet mills and pellet coolers will be controlled by an RCO/RTO that can operate in either catalytic mode (RCO) or thermal mode (RTO). The RTO and RCO modes have the same control efficiency so there will be no impact on emissions when switching between operating modes. Table 6 2021 Actual Emissions at Outlet of RCO-2 Stack (CD-RCO-2) Pellet Coolers (ES-CLR-1 through ES-CLR-6) Enviva Pellets, LLC - Northampton Plant Pollutant CAS No.NC TAP VOC Page 16 of 30 Table 6 2021 Actual Emissions at Outlet of RCO-2 Stack (CD-RCO-2) Pellet Coolers (ES-CLR-1 through ES-CLR-6) Enviva Pellets, LLC - Northampton Plant Natural Gas Combustion HAP and TAP Emissions 2021 Actual Emissions (tpy) Natural Gas Source 2-Methylnaphthalene Y N Y 2.4E-05 lb/MMscf 3 1.1E-06 3-Methylchloranthrene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 7,12-Dimethylbenz(a)anthracene Y N Y 1.6E-05 lb/MMscf 3 7.2E-07 Acenaphthene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Acenaphthylene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Acetaldehyde Y Y Y 1.5E-05 lb/MMscf 3 6.8E-07 Acrolein Y Y Y 1.8E-05 lb/MMscf 3 8.07E-07 Ammonia N Y N 3.2 lb/MMscf 3 1.43E-01 Anthracene Y N Y 2.4E-06 lb/MMscf 3 1.1E-07 Arsenic Y Y N 2.0E-04 lb/MMscf 3 9.0E-06 Benz(a)anthracene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Benzene Y N Y 7.1E-04 lb/MMBtu 4 3.2E-02 Benzo(a)pyrene Y Y Y 1.2E-06 lb/MMscf 3 5.4E-08 Benzo(b)fluoranthene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Benzo(g,h,i)perylene Y N Y 1.2E-06 lb/MMscf 3 5.4E-08 Benzo(k)fluoranthene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Beryllium Y Y N 1.2E-05 lb/MMscf 3 5.4E-07 Cadmium Y Y N 1.1E-03 lb/MMscf 3 4.9E-05 Chromium VI Y N N 1.4E-03 lb/MMscf 3 6.3E-05 Chrysene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Cobalt Compounds Y N N 8.4E-05 lb/MMscf 3 3.8E-06 Dibenzo(a,h)anthracene Y N Y 1.2E-06 lb/MMscf 3 5.4E-08 Dichlorobenzene Y Y Y 1.2E-03 lb/MMscf 3 5.4E-05 Fluoranthene Y N Y 3.0E-06 lb/MMscf 3 1.3E-07 Fluorene Y N Y 2.8E-06 lb/MMscf 3 1.3E-07 Formaldehyde Y Y Y 1.5E-03 lb/MMBtu 4 6.9E-02 Hexane Y Y Y 1.8 lb/MMscf 3 8.1E-02 Indeno(1,2,3-cd)pyrene Y N Y 1.8E-06 lb/MMscf 3 8.1E-08 Lead Y N N 5.0E-04 lb/MMscf 3 2.2E-05 Manganese Y Y N 3.8E-04 lb/MMscf 3 1.7E-05 Mercury Y Y N 2.6E-04 lb/MMscf 3 1.2E-05 Naphthalene Y N Y 6.1E-04 lb/MMscf 3 2.7E-05 Nickel Y Y N 2.1E-03 lb/MMscf 3 9.4E-05 Polycyclic Organic Matter Y N N 4.0E-05 lb/MMBtu 4 1.8E-03 Phenanthrene Y N Y 1.7E-05 lb/MMscf 3 7.6E-07 Pyrene Y N Y 5.0E-06 lb/MMscf 3 2.2E-07 Selenium compounds Y N N 2.4E-05 lb/MMscf 3 1.1E-06 Toluene Y Y Y 3.4E-03 lb/MMscf 3 1.5E-04 Total HAP Emissions (natural gas combustion)0.18 Total TAP Emissions (natural gas combustion)0.29 1. 2. 3. 4. CAS - chemical abstract service PM - particulate matter CO - carbon monoxide PM10 - particulate matter with an aerodynamic diameter less than 10 microns HAP - hazardous air pollutant PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less hr - hour RCO - regenerative catalytic oxidizer lb - pound RTO - regenerative thermal oxidizer LPG - liquified petroleum gas TAP - toxic air pollutant Mgal - thousand gallons tpy - tons per year MMBtu - Million British thermal units SO2 - sulfur dioxide MMscf - Million standard cubic feet VOC - volatile organic compound NC - North Carolina yr - year ODT - oven dried tons References: U.S. EPA. AP-42, Section 1.4 - Natural Gas Combustion, 07/98. U.S. EPA. AP-42, Section 1.5 - Liquefied Petroleum Gas Production, 07/08. U.S. EPA WebFIRE database available at: https://cfpub.epa.gov/webfire/ Units Footnote Notes: Emission factors from AP-42, Section 1.4 - Natural Gas Combustion, 07/98. Emission factors converted from lb/MMscf to lb/MMBtu based on assumed heating value of 1,020 Btu/scf for natural gas per AP-42 Section 1.4. Pollutant HAP NC TAP VOC Emission Factor South Coast Air Quality Management District. AER Reporting tool. Emission factors available in the Help and Support Manual at: http://www.aqmd.gov/home/rules-compliance/compliance/annual-emission-reporting A National Methodology and Emission Inventory for Residential Fuel Combustion (2001). Retrieved from https://www3.epa.gov/ttnchie1/conference/ei12/area/haneke.pdf. Emission factors for propane combustion obtained from AP-42 Section 1.5 - Liquefied Petroleum Gas Combustion, 07/08. The RCO/RTO burner can fire either natural gas or propane; Propane is worst-case for these HAP emissions. Emission factors for propane combustion from the South Coast Air Quality Management District's Air Emissions Reporting Tool for external combustion equipment fired with LPG. Abbreviations: Emission factors for natural gas combustion are from NCDAQ Natural Gas Combustion Spreadsheet and AP-42, Fifth Edition, Volume 1, Chapter 1.4 - Natural Gas Combustion, 07/98 for small boilers. The emission factors for acetaldehyde, acrolein, and ammonia are cited in the NCDAQ spreadsheet as being sourced from the USEPA's WebFIRE database. Page 17 of 30 Calculation Basis Hourly Throughput1 154 ODT/hr Annual Throughput1 505,331 ODT/yr Criteria Pollutant Emissions 2021 Actual Emissions4 (tpy) Formaldehyde2 8.4E-04 0.21 Methanol2 2.0E-03 0.49 Propionaldehyde5 2.1E-04 0.05 0.76 VOC as carbon2 0.10 25.6 VOC as propane3 0.12 31.4 1. 2. 3. 4. 5. hr - hour lb - pound ODT - oven dried tons tpy - tons per year VOC - volatile organic compound yr - year Total HAP Emissions Notes: Hourly and annual throughputs assumed to be the same as the combined dryer throughputs. Emission factors derived from NCASI's Wood Products Database (February 2013) for dry wood handling operations at an OSB mill, mean emission factors. The emission factors were converted from lb/MSF (3/8") to lb/ODT using the typical density and moisture content of an OSB panel. Abbreviations: VOC as propane = (1.22 x VOC as carbon) + formaldehyde. As emissions are based on throughput, the calculated emissions represent the total emissions from Dried Wood Handling 1 and 2 (ES-DWH-1 and ES-DWH-2). Emission factor based on process knowledge and an appropriate contingency based on engineering judgement. Table 7 2021 Actual VOC and HAP Emissions Dried Wood Handling 1 and 2 (ES-DWH-1 and ES-DWH-2) Enviva Pellets, LLC - Northampton Plant Pollutant Emission Factor (lb/ODT) Page 18 of 30 PM PM10 PM2.5 (cfm)(gr/cf)(hours)PM10 (% of PM) PM2.5 (% of PM)(tpy)(tpy)(tpy) ES-PCHP Pellet Cooler HP Fines Relay System CD-PCHP-BV One (1) baghouse4 3,600 0.004 7,376 100%100%0.46 0.46 0.46 ES-PMFS Pellet Mill Feed Silo CD-PMFS-BV One (1) baghouse4 2,500 0.004 7,376 100%100%0.32 0.32 0.32 ES-CLR-1 Pellet Cooler CD-CLR-1 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-CLR-2 Pellet Cooler CD-CLR-2 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-CLR-3 Pellet Cooler CD-CLR-3 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-CLR-4 Pellet Cooler CD-CLR-4 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-CLR-5 Pellet Cooler CD-CLR-5 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-CLR-6 Pellet Cooler CD-CLR-6 One (1) existing Cyclone5 17,100 0.01 7,376 26.1%3.2%5.41 1.41 0.17 ES-DWH-2 Dried Wood Handling-2 CD-DWH-BF-2 One (1) baghouse 2,500 0.004 7,376 100%100%0.32 0.32 0.32 ES-DSR Dry Shavings Reception CD-DSR-BF One (1) baghouse 2,500 0.004 7,376 100%100%0.32 0.32 0.32 ES-FPH; ES-PB-1 through 12; ES-PL-1 and -2 Finished Product Handling; Twelve pellet loadout bins; Pellet mill loadout 1 and 2 CD-FPH-BF One (1) baghouse3,6 35,500 0.004 7,376 91%40%4.49 4.08 1.80 ES-DSS Dry Shavings Silo CD-DSS-BF One (1) baghouse4 500 0.004 7,376 100%100%0.06 0.06 0.06 Notes: 1.Filter, Vent, and Cyclone inlet flow rate (cfm) provided by design engineering firm (Mid-South Engineering Co.). The exit flowrate was conservatively assumed to be the same as the inlet flowrate. 2.Pollutant loading provided by Aircon. 3.Finished product handling PM2.5 speciation based on review of NCASI data for similar baghouses in the wood products industry. 4.No speciation data is available for PM10/PM2.5. Therefore, it is conservatively assumed to be equal to total PM. 5.Pellet cooler PM10/PM2.5 speciation based on process knowledge and engineering judgement. 6.Finished product handling PM10 speciation based on AP-42 factors for wet wood combustion (Section 1.6) controlled by a mechanical separator. Since the particle size of particulate matter from a pellet cooler is anticipated to be larger than flyash, this factor is believed to be a conservative indicator of speciation. Abbreviations: cf - cubic feet lb - pound cfm - cubic feet per minute PM - particulate matter ES - Emission Sources PM10 - particulate matter with an aerodynamic diameter less than 10 microns IES - Insignificant Emission Source PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less gr - grain tpy - tons per year hr - hour Reference: U.S. EPA. AP-42, Section 1.6 - Wood Residue Combustion in Boilers, 09/03 Table 8 2021 Actual PM Emissions from Baghouses/Cyclones Enviva Pellets, LLC - Northampton Plant 2021 Actual Emissions Emission Unit ID Source Description Control Device ID Control Device Description Exhaust Flow Rate1 Exit Grain Loading2 Particulate SpeciationAnnual Operation Page 19 of 30 Material Moisture Content PM Emission Factor1 PM10 Emission Factor1 PM2.5 Emission Factor1 2021 Actual PM Emissions 2021 Actual PM10 Emissions 2021 Actual PM2.5 Emissions (%)(lb/ton)(lb/ton)(lb/ton)(tph)(tpy)(tpy)(tpy)(tpy) Material feed conveyance system to dryer burner fuel storage bin 5 48%3.7E-05 1.8E-05 2.7E-06 44 327,587 3.1E-02 1.4E-02 2.2E-03 Material feed conveyance system to raw wood chip storage pile 1 48%3.7E-05 1.8E-05 2.7E-06 400 971,791 1.8E-02 8.6E-03 1.3E-03 Material feed conveyance system to dryer burner 0 45%4.1E-05 1.9E-05 2.9E-06 44 327,587 0.0E+00 0.0E+00 0.0E+00 Material feed conveyance system to rotary drum wood dryer 0 48%3.7E-05 1.8E-05 2.7E-06 300 971,791 0.0E+00 0.0E+00 0.0E+00 Material feed conveyance system to fuel storage piles 3 45%4.1E-05 1.9E-05 2.9E-06 44 327,587 2.0E-02 9.5E-03 1.4E-03 IES-DLH Drop point for dry shavings to dry line hopper 1 17%1.6E-04 7.6E-05 1.1E-05 10.0 73,760 5.9E-03 2.8E-03 4.2E-04 ES-DLC-1 Drop point for dry line hopper to dry line feed conveyor 1 17%1.6E-04 7.6E-05 1.1E-05 10.0 73,760 5.9E-03 2.8E-03 4.2E-04 Existing dry shaving walking floor truck dump 1 8.0%4.6E-04 2.2E-04 3.3E-05 48.0 73,760 1.7E-02 8.0E-03 1.2E-03 Existing dry shaving loader 2 8.0%4.6E-04 2.2E-04 3.3E-05 10.0 73,760 3.4E-02 1.6E-02 2.4E-03 IES-ADD Additive Handling and Storage 1 0.25%5.9E-02 2.8E-02 4.2E-03 1.0 7,376 2.2E-01 1.0E-01 1.6E-02 ES-PS-1 and 2 Drop points from the dry line feed conveyor to the Dry Hammermill Pre-screeners 2 17.0%1.6E-04 7.6E-05 1.1E-05 300.0 971,791 1.55E-01 7.35E-02 1.11E-02 ES-DWH-1 Dried Wood Handling 13 2 17.0%1.6E-04 7.6E-05 1.1E-05 185.3 608,833 0.10 0.05 0.01 Total Emissions:0.60 0.28 0.043 1.Emission factor calculation based on formula from AP-42, Section 13.2.4 - Aggregate Handling and Storage Piles, Equation 1, (11/06). where:E = emission factor (lb/ton) k = particle size multiplier (dimensionless) for PM 0.74 k = particle size multiplier (dimensionless) for PM10 0.35 k = particle size multiplier (dimensionless) for PM2.5 0.053 U = mean wind speed (mph)6.3 2. 3.Emissions from dried wood handling associated with the existing dryer line are controlled by an existing passive bin vent. hr - hour lb - pound PM - particulate matter PM10 - particulate matter with an aerodynamic diameter less than 10 microns PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less tpy - tons per year yr - year References: U.S. EPA. AP-42, Section 13.2.4 - Aggregate Handling and Storage Piles, 11/06. Table 9a 2021 Actual Emissions from Material Handling Enviva Pellets, LLC - Northampton Plant ES-GWHS Abbreviations: Notes: Annual throughputs based on records of material received in 2021. Source Transfer Activity1 Number of Drop Points 2021 Actual Throughput2 IES-DRYSHAVE Page 20 of 30 Pile Width/ Diameter Pile Length Pile Height Outer Surface Area of Pile3 (lb/day/acre)(lb/hr/ft2)(lb/day/acre)(lb/hr/ft2)(ft)(ft)(ft)(ft2)(lb/hr)(tpy)(lb/hr)(tpy)(lb/hr)(tpy)(lb/hr)(tpy) IES-DRYSHAVE Dry Shaving Storage Pile 8.6 8.2E-06 3.6 3.4E-06 100 --25 10,537 0.09 0.38 0.04 0.19 0.007 0.03 0.04 0.19 Green Wood Storage Pile No. 1 8.6 8.2E-06 3.6 3.4E-06 155 --72 30,907 0.25 1.11 0.13 0.56 0.019 0.08 0.13 0.57 Green Wood Storage Pile No. 2 8.6 8.2E-06 3.6 3.4E-06 350 400 25 213,000 1.75 7.67 0.88 3.84 0.131 0.58 0.89 3.92 Green Wood Storage Pile No. 3 8.6 8.2E-06 3.6 3.4E-06 150 150 25 45,000 0.37 1.62 0.19 0.81 0.028 0.12 0.19 0.83 Green Wood Storage Pile No. 4 8.6 8.2E-06 3.6 3.4E-06 200 200 25 72,000 0.59 2.59 0.30 1.30 0.044 0.19 0.30 1.32 Bark Fuel Storage Pile No. 1 8.6 8.2E-06 3.6 3.4E-06 150 150 25 45,000 0.37 1.62 0.185 0.81 2.8E-02 0.122 0.19 0.83 Bark Fuel Storage Pile No. 2 8.6 8.2E-06 3.6 3.4E-06 100 200 25 42,000 0.345 1.513 0.173 0.757 2.6E-02 1.1E-01 0.18 0.77 Bark Fuel Storage Pile No. 3 8.6 8.2E-06 3.6 3.4E-06 50 --25 3,332 0.027 0.120 0.014 0.060 2.1E-03 9.0E-03 0.014 0.061 Total Emissions:3.80 16.64 1.90 8.32 0.28 1.25 1.94 8.50 1. where:s, silt content of wood chips (%):8.4 s - silt content (%) for lumber sawmills (mean) from AP-42, Section 13.2.2 - Unpaved Roads, 11/06, Table 13.2.2-1 p, number of days with rainfall greater than 0.01 inch:110 Based on AP-42, Section 13.2.2 - Unpaved Roads, 11/06, Figure 13.2.1-2. f (time that wind exceeds 5.36 m/s - 12 mph) (%):12.5 Based on meteorological data averaged for 2012-2016 for Maxton, NC National Weather Service (NWS) Station PM10/TSP ratio:50% PM2.5/TSP ratio:7.5% 2. 3.The surface area for rectangular piles is calculated as [2*H*L+2*W*H+L*W] + 20% to consider the sloping pile edges. Pile dimensions were provided by Enviva. The surface area for circular piles is calculated as [∏*R*(R2+H2)0.5] + 20% to consider the sloping pile edges. Diameter and height were provided by Enviva. 4.Emissions are calculated in tons of carbon per year by the following formula: tons C/year = 5 acres * 365 days * 1.6 lb C/acre-day / 2000 lb/ton Emission factor converted from as carbon to as propane by multiplying by 1.22. EPA - Environmental Protection Agency PM - particulate matter ft - feet PM10 - particulate matter with an aerodynamic diameter less than 10 microns ft2 - square feet PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less lb - pound tpy - tons per year mph - miles per hour TSP - total suspended particulate NC - North Carolina yr - year NCASI - National Council for Air and Stream Improvement, Inc.VOC - volatile organic compound NWS - National Weather Service Reference: U.S. EPA. AP-42, Section 13.2.2 - Unpaved Roads, 11/06. U.S. EPA. Control of Open Fugitive Dust Sources, Research Triangle Park, North Carolina, EPA-450/3-88-008. September 1988. U.S. EPA. Background Document for Revisions to Fine Fraction Ratios Used for AP-42 Fugitive Dust Emission Factors. November 2006. NCASI. Technical Bulletin No. 700. Preliminary Investigation of Releases of Volatile Organic Compounds from Wood Residual Storage Piles. October 1995. Abbreviations: 2021 Actual PM2.5 Emissions 2021 Actual VOC Emissions as propane4 Notes: TSP emission factor based on U.S. EPA Control of Open Fugitive Dust Sources. Research Triangle Park, North Carolina, EPA-450/3-88-008. September 1988, Page 4-17. PM10 is assumed to equal 50% of TSP based on U.S. EPA Control of Open Fugitive Dust Sources, Research Triangle Park, North Carolina, EPA-450/3-88-008. September 1988. PM2.5 is assumed to equal 7.5 % of TSP U.S. EPA Background Document for Revisions to Fine Fraction Ratios Used for AP-42 Fugitive Dust Emission Factors. November 2006. Source Description PM Emission Factor1 VOC Emission Factor2 2021 Actual PM Emissions 2021 Actual PM10 Emissions Table 9b 2021 Actual Emissions from Wood Storage Pile Wind Erosion Enviva Pellets, LLC - Northampton Plant IES-GWHS Emission factors obtained from NCASI document provided by the South Carolina Department of Health and Environmental Control (DHEC) for the calculation of fugitive VOC emissions from Douglas Fir wood storage piles. Emission factors ranged from 1.6 to 3.6 lb C/acre-day. As Enviva has engineering data that shows VOC emissions from greenwood storage piles are less than the low end of the range of the factors listed, Enviva chose to employ the maximum emission factor from the NCASI document for purposes of conservatism. ()()day /acre) / lb15 f 235 p365 1.5 s 1.7 E     −  = Page 21 of 30 Calculation Basis Annual Throughput of Chipper 397,375 ODT/year1 Short Term Throughput 178.50 ODT/hr1 Approximate Moisture Content 50%of total weight 2021 Actual Emissions (tpy) THC as Carbon2 0.0041 0.81 VOC as propane3 0.0050 0.99 Methanol2 0.0010 0.20 Notes: 1 The annual throughput for the chipper is conservatively assumed to be the same as the total dryer throughput. The hourly throughput for the chipper is assumed to be 85% of the debarker hourly throughput. 2 Emission factor obtained from available emissions factors for chippers in AP-42 Section 10.6.3, Medium Density Fiberboard 08/02, Table 7 and Section 10.6.4, Hardboard and Fiberboard, 10/02, Tables 7 and 9. Emission factors for THC and Meth are the same across all three tables. 3 Emission factor for VOC as propane is from AP-42, Section 10.6.3., Medium Density Fiberboard, 08/02, Table 7. hr - hour lb - pound ODT - oven dried tons THC - total hydrocarbon tpy - tons per year VOC - volatile organic compound yr - year References: U.S. EPA. AP-42, Section 10.6.3 - Medium Density Fiberboard, 08/02. U.S. EPA. AP-42, Section 10.6.4 - Hardboard and Fiberboard, 10/02. Abbreviations: Pollutant Emission Factor (lb/ODT) Table 10 2021 Actual Emissions Electric Powered Green Wood Chipper (IES-EPWC) Enviva Pellets, LLC - Northampton Plant Page 22 of 30 Calculation Basis Annual Throughput of Bark Hog 119,213 ODT/year1 Short-term Throughput of Bark Hog 31.50 ODT/hr1 Approximate Moisture Content 50%of total weight 2021 Actual Emissions (tpy) THC as Carbon2 0.0041 lb/ODT 0.24 VOC as propane3 0.0050 lb/ODT 0.30 PM4 0.02 lb/ton 0.24 PM104 0.011 lb/ton 0.13 Methanol2 0.0010 lb/ODT 0.06 Notes: 1 The annual throughput used for the bark hog is 30% of the annual throughput of the facility. The short-term throughput is 15% of maximum hourly capacity of the debarker. 2 Emission factor obtained from available emissions factors for chippers in AP-42 Section 10.6.3, Medium Density Fiberboard, 08/02, Table 7 and Section 10.6.4, Hardboard and Fiberboard, 10/02, Tables 7 and 9. Emission factors for THC and Methanol are the same across all three tables. 3 Emission factor for VOC as propane is from AP-42, Section 10.6.3., Medium Density Fiberboard, 08/02, Table 7. 4 hr - hour PM10 - particulate matter with an aerodynamic diameter less than 10 microns lb - pound tpy - tons per year ODT - oven dried tons VOC - volatile organic compound THC - total hydrocarbon yr - year PM - particulate matter References: U.S. EPA. AP-42, Section 10.6.3 - Medium Density Fiberboard, 08/02. U.S. EPA. AP-42, Section 10.6.4 - Hardboard and Fiberboard, 10/02. Abbreviations: U.S. EPA. 1990. AIRS Facility Subsystem Source Classification Codes and Emission Factor Listing for Criteria Air Pollutants . Source Classification Code 3-07-008-01 (Log Debarking). Table 11 2021 Actual Emissions Enviva Pellets, LLC - Northampton Plant Emission Factor Particulate matter emission factors from the USEPA document titled AIRS Facility Subsystem Source Classification Codes and Emission Factor Listing for Criteria Air Pollutants. Source Classification Code 3-07-008-01 (Log Debarking). All PM is assumed to be larger than 2.5 microns. PM emissions are assumed to be controlled due to the bark hog being partially enclosed (assumed 90% control). Bark Hog (IES-BARK) Pollutant Page 23 of 30 Calculation Basis Hourly Throughput1 210 ODT/hr Annual Throughput1 397,375 ODT/yr Approximate Moisture Content 50%of total weight Potential Criteria Pollutant Emissions 2021 Actual Emissions(tpy) TSP2 2.0E-02 0.79 PM102 1.1E-02 0.44 1. 2. hr - hour lb - pound ODT - oven dried tons PM10 - particulate matter with an aerodynamic diameter less than 10 microns tpy - tons per year TSP - total suspended particulate yr - year Reference: Table 12 2021 Actual Emissions Debarker (IES-DEBARK) Enviva Pellets, LLC - Northampton Plant Source Pollutant Emission Factor (lb/ton) IES-DEBARK Notes: The annual throughput used for the debarker is equal to the annual throughput of the dryer. The short-term throughput is based upon the maximum capacity of the debarker. Particulate matter emission factors from the USEPA document titled AIRS Facility Subsystem Source Classification Codes and Emission Factor Listing for Criteria Air Pollutants. Source Classification Code 3-07-008-01 (Log Debarking). All PM is assumed to be larger than 2.5 microns in diameter. PM emissions are assumed to be controlled due to the use of water spray and the bark hog being partially enclosed (assumed 90% control). Abbreviations: U.S. EPA. 1990. AIRS Facility Subsystem Source Classification Codes and Emission Factor Listing for Criteria Air Pollutants . Source Classification Code 3-07-008-01 (Log Debarking). Page 24 of 30 Emergency Generator 1 - Emissions (IES-GN-1) Equipment and Fuel Characteristics Engine Output 0.26 MW Engine Power 350 hp (brake) Hours of Operation 29 hr/yr1 Heating Value of Diesel 19,300 Btu/lb Power Conversion 7,000 Btu/hr/hp gal/yr Criteria Pollutant Emissions 2021 Actual Emissions(tpy) TSP PSD 4.41E-04 lb/kW-hr2 1.64E-03 PM10 PSD 4.41E-04 lb/kW-hr2 1.64E-03 PM2.5 PSD 4.41E-04 lb/kW-hr2 1.64E-03 NOx PSD 8.82E-03 lb/kW-hr5 3.28E-02 SO2 PSD 15 ppmw3 5.43E-05 CO PSD 7.72E-03 lb/kW-hr2 2.87E-02 VOC (NMHC)PSD 2.51E-03 lb/MMBtu4 2.50E-07 Hazardous Air Pollutant Emissions 2021 Actual Emissions(tpy) Acetaldehyde HAP 5.37E-06 2.68E-05 Acrolein HAP 6.48E-07 3.23E-06 Benzene HAP 6.53E-06 3.26E-05 Benzo(a)pyrene6 HAP 1.32E-09 6.56E-09 1,3-Butadiene HAP 2.74E-07 1.37E-06 Formaldehyde HAP 8.26E-06 4.12E-05 Total PAH (POM)HAP 1.18E-06 5.87E-06 Toluene HAP 2.86E-06 1.43E-05 Xylenes HAP 2.00E-06 9.95E-06 4.12E-05 1.35E-04 Notes: 1 2 Emissions factors from NSPS Subpart IIII (or 40 CFR 89.112 where applicable) in compliance with post-2009 construction. 3 Sulfur content in accordance with Year 2010 standards of 40 CFR 80.510(a) as required by NSPS Subpart IIII. 4 Emission factor obtained from AP-42 Section 3.3, Tables 3.3-1 Table 3.3-2. 5 Emission factor for NOx is listed as NOx and NMHC (Non-Methane Hydrocarbons or VOC) in Table 4 of NSPS Subpart IIII. conservatively assumed entire limit attributable to NOx. 6 Benzo(a)pyrene is included as a HAP in Total PAH. Pollutant Category Emission Factor (lb/hp-hr)4 Pollutant 2021 Actual Emissions Enviva Pellets, LLC - Northampton Plant Emergency Generator (IES-GN-1) and Fire Water Pump (IES-FWP) UnitsEmission FactorCategory Table 13 Highest HAP (Formaldehyde) Total HAPs NSPS allows for only 100 hrs/yr of non-emergency operation of these engines (not the 500 hours shown). The PTE for the emergency generator is based on 5 hr/yr, though, because the regs allow non-emergency operation and EPA guidance is 500 hr/yr for emergency generators. Page 25 of 30 2021 Actual Emissions Enviva Pellets, LLC - Northampton Plant Emergency Generator (IES-GN-1) and Fire Water Pump (IES-FWP) Table 13 Firewater Pump Emissions (IES-FWP) Equipment and Fuel Characteristics Engine Output 0.22 MW Engine Power 300 hp Hours of Operation 19 hr/yr1 Heating Value of Diesel 19,300 Btu/lb Power Conversion 7,000 Btu/hr/hp gal/yr Criteria Pollutant Emissions 2021 Actual Emissions (tpy) TSP PSD 4.41E-04 lb/kW-hr (2)9.57E-04 PM10 PSD 4.41E-04 lb/kW-hr (2)9.57E-04 PM2.5 PSD 4.41E-04 lb/kW-hr (2)9.57E-04 NOx PSD 8.82E-03 lb/kW-hr (5)1.91E-02 SO2 PSD 15 ppmw (3)3.17E-05 CO PSD 7.72E-03 lb/kW-hr (2)1.67E-02 VOC (NMHC)PSD 2.51E-03 lb/MMBtu (4)5.11E-05 Hazardous Air Pollutant Emissions 2021 Actual Emissions (tpy) Acetaldehyde HAP 5.37E-06 1.56E-05 Acrolein HAP 6.48E-07 1.88E-06 Benzene HAP 6.53E-06 1.90E-05 Benzo(a)pyrene6 HAP 1.32E-09 3.83E-09 1,3-Butadiene HAP 2.74E-07 7.96E-07 Formaldehyde HAP 8.26E-06 2.40E-05 Total PAH (POM)HAP 1.18E-06 3.42E-06 Toluene HAP 2.86E-06 8.33E-06 Xylenes HAP 2.00E-06 5.81E-06 2.40E-05 7.89E-05 Notes: 1 2 Emissions factors from NSPS Subpart IIII (or 40 CFR 89.112 where applicable) in compliance with post-2009 construction. 3 Sulfur content in accordance with Year 2010 standards of 40 CFR 80.510(a) as required by NSPS Subpart IIII. 4 Emission factor obtained from AP-42 Section 3.3, Tables 3.3-1 Table 3.3-2. 5 6 Benzo(a)pyrene is included as a HAP in Total PAH. NSPS allows for only 100 hrs/yr of non-emergency operation of these engines (not the 500 hours shown). The PTE for the emergency generator is based on 5 hr/yr, though, because the regs allow non-emergency operation and EPA guidance is 500 hr/yr for emergency generators. Units Highest HAP (Formaldehyde) Total HAPs Emission factor for NOx is listed as NOx and NMHC (Non-Methane Hydrocarbons or VOC) in Table 4 of NSPS Subpart IIII. Conservatively assumed entire limi attributable to NOx. Pollutant Category Emission Factor (lb/hp-hr)4 Pollutant Category Emission Factor Page 26 of 30 2021 Actual Emissions Enviva Pellets, LLC - Northampton Plant Emergency Generator (IES-GN-1) and Fire Water Pump (IES-FWP) Table 13 Btu - British thermal unit NMHC - Non-methane hydrocarbon CARB - California Air Resources Board NOX - nitrogen oxides CAS - chemical abstract service N2O - nitrous oxide CFR - Code of Federal Regulations NSPS - New Source Performance Standards CH4 - methane ODT - oven dried tons CO - carbon monoxide PAH - polycyclic aromatic hydrocarbon CO2 - carbon dioxide PM - particulate matter CO2e - carbon dioxide equivalent PM10 - particulate matter with an aerodynamic diameter less than 10 microns g - gram PM2.5 - particulate matter with an aerodynamic diameter of 2.5 microns or less gal - gallon POM - polycyclic organic matter HAP - hazardous air pollutant ppmw - parts per million by weight hp - horsepower PSD - prevention of significant deterioration hr - hour PTE - potential to emit kg - kilogram SO2 - sulfur dioxide kW - kilowatt tpy - tons per year lb - pound VOC - volatile organic compound MW - megawatt yr - year MMBtu - Million British thermal units References: U.S. EPA. AP-42, Section 3.3 - Stationary Internal Combustion Engines, 10/96. U.S. EPA. AP-42, Section 3.4 - Large Stationary Diesel and All Stationary Dual-fuel Engines, 10/96. Abbreviations: Page 27 of 30 Diameter Height/ Length (gal)(gal)(ft)(ft)(gal/yr)(lb/hr)(tpy) IES-TK-1 Emergency Generator #1 Fuel Storage Tank2 2,500 1,250 6.0 12 Horizontal 8,803 7.0 1.3E-04 5.8E-04 IES-TK-2 Fire Pump Fuel Storage Tank2 500 250 3.0 10.0 Horizontal 7,554 30.2 3.7E-05 1.6E-04 IES-TK-3 Mobile Fuel Diesel Storage Tank 5,000 2,500 6.0 23.7 Horizontal 200,000 80.0 7.6E-04 3.3E-03 IES-TK-4 Emergency Generator #2 Fuel Storage Tank2 1,000 500 5.3 6.0 Horizontal 0 0.0 1.3E-04 0.0E+00 Total Emissions:1.1E-03 4.1E-03 Notes: 1.Conservative design specifications. 2.Working volume conservatively assumed to be 50% of tank design volume because tanks will not be full at all times. 3. 4. 5.IES-TK-3 length was estimated based on the capacity of the tank and the diameter. Abbreviations: EPA - Environmental Protection Agency yr - year ft - feet VOC - volatile organic compound gal - gallon lb - pound Table 14 2021 Actual Emissions Diesel Storage Tanks (IES-TK-1 through IES-TK-4) Enviva Pellets, LLC - Northampton Plant Orientation Throughput3 Turnovers VOC Emissions4 Throughput for IES-TK-1, IES-TK-2, and IES-TK-4 based on fuel consumption provided by Enviva and 500 hours of operation per year. Throughput for IES-TK-3 provided by Enviva. Emissions calculated using EPA TANKS 4.0 software. A minimum tank length for the TANKS program of 5 feet was used to estimate the emissions for IES-TK-2. Source ID Description Design Volume1 Working Volume2 Tank Dimensions5 Page 28 of 30 Operating Data: Dryer-1 Heat Input 175.3 MMBtu/hr Annual Heat Input 1,302,536 MMBtu/yr Duct Burner 1 and 2 Heat Input 3 MMBtu/hr Number of Burners 2 Operating Schedule 0 hrs/yr Dryer-2 Heat Input 180.0 MMBtu/hr Annual Heat Input 0 MMBtu/yr Duct Burner 3 and 4 Heat Input 3 MMBtu/hr Number of Burners 2 Operating Schedule 0 hrs/yr RTO-1 Heat Input 31.6 MMBtu/hr Operating Schedule 7,376 hrs/yr Furnace 1 Bypass Heat Input 26 MMBtu/hr Operating Schedule 9 hrs/yr Furnace 1 Idle Heat Input 10 MMBtu/hr Operating Schedule 51 hrs/yr RTO-2 Heat Input 28.8 MMBtu/hr Operating Schedule 0 hrs/yr Furnace 2 Bypass Heat Input 27 MMBtu/hr Operating Schedule 0 hrs/yr Furnace 2 Idle Heat Input 10 MMBtu/hr Operating Schedule 0 hrs/yr RCO-2 Heat Input 16.2 MMBtu/hr Operating Schedule 7,376 hrs/yr Propane Vaporizer Heat Input 1 MMBtu/hr Operating Schedule 0 hrs/yr Emergency Generator 1 Output 350 bhp Operating Schedule 29 hrs/yr Power Conversion 7,000 Btu/hr/hp Energy Input 2.450 MMBtu/hr Emergency Generator 2 Output 671 bhp Operating Schedule 0 hrs/yr Power Conversion 7,000 Btu/hr/hp Energy Input 4.69 MMBtu/hr Fire Water Pump Output 300 bhp Operating Schedule 19 hrs/yr Power Conversion 7,000 Btu/hr/hp Energy Input 2.100 MMBtu/hr Table 15 2021 Actual GHG Emissions Enviva Pellets, LLC - Northampton Plant Facility-wide Page 29 of 30 Table 15 2021 Actual GHG Emissions Enviva Pellets, LLC - Northampton Plant Facility-wide CO2 CH4 N2O CO2 CH4 N2O Total CO2e ES-DRYER-1 Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 134,677 258 1,540 136,475 IES-DDB-1 and -2 Propane 62.87 7.50E-02 1.79E-01 0 0.00 0.00 ES-DRYER-2 Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 0 0.00 0.00 IES-DDB-3 and -4 Propane 62.87 7.50E-02 1.79E-01 0 0.00 0.00 CD-RTO-12 Propane 62.87 7.50E-02 1.79E-01 16,169 19.29 45.98 16,234 ES-FURNACEBYP-1 Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 23 0.04 0.27 24 ES-FURNACEBYP-1 (Idle Mode)Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 52 0.10 0.60 53 CD-RTO-23 Propane 62.87 7.50E-02 1.79E-01 0 0.00 0.00 ES-FURNACEBYP-2 Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 0 0.00 0.00 ES-FURNACEBYP-2 (Idle Mode)Wood and Wood Residuals 93.80 1.80E-01 1.07E+00 0 0.00 0.00 CD-RCO-24 Propane 62.87 7.50E-02 1.79E-01 8,262 9.86 23.50 8,295 IES-PVAP Propane 62.87 7.50E-02 1.79E-01 0.00 0.00 0.00 IES-GN-1 No. 2 Fuel Oil (Distillate)73.96 7.50E-02 1.79E-01 6 0.01 0.01 6 IES-GN-2 No. 2 Fuel Oil (Distillate)73.96 7.50E-02 1.79E-01 0.00 0.00 IES-FWP No. 2 Fuel Oil (Distillate)73.96 7.50E-02 1.79E-01 3 0.00 0.01 3 1 Emission factors from Table C-1 and C-2 of GHG Reporting Rule. Emission factors for methane and N2O already multiplied by their respective GWPs of 25 and 298. 2 3 CD-RTO-2 heat input includes heat input contributed by VOC in the furnace/dryer exhaust stream in addition to the RTO burners. 4 CD-RCO-2 heat input includes the heat input contributed by VOC in the pellet cooler exhaust stream in addition to the RCO/RTO burners. CD-RTO-1 heat input includes heat input contributed by VOC in the furnace/dryer, green hammermill, dry hammermill, and dry shavings hammermills' exhaust streams in addition to the RTO burners. Notes: Emission Unit ID Fuel Type Emission Factors from Table C-1 (kg/MMBtu)1 Tier 1 Emissions (short tons) Page 30 of 30