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HomeMy WebLinkAboutAQ_F_0900009_20221028_CMPL_CompRpt_Toxics TRq V/- The Chemours Company it Chemours Fayetteville Works 22828 NC Highway 87 W Fayetteville,NC 28306 CERTIFIED MAIL ARTICLE NUMBER 7017 1450 0002 3902 4386 And sent via email October 28, 2022 Ms. Heather Carter NCDEQ - Division of Air Quality 225 Green Street- Suite 714 Fayetteville,NC 28301 SUBJECT: 3Q22 Toxic Air Pollutant Emissions Report Chemours Company—Fayetteville Works Air Permit No. 03735T48 Facility ID: 0900009 Bladen County,North Carolina Dear Ms. Carter: Enclosed is the required quarterly TAP report and one photocopy of the report. Table 1 gives the facility-wide emissions of toxic air pollutants. All facility-wide toxic air pollutant emissions were below the respective permit limits listed in Section 2(A) of the referenced permit. If you have any questions,please feel free to call me at (910) 678-1213. Sincerely, Cs,-4' � Christel E. Compton Program Manager Attachment RECEIVED NOV 0 2 2022 .,/0Ofli DEQ-FAYETTEVILLE RE0110NAL OFFICE Chemours Company- Fayetteville Works 1 3Q22 Air Permit No. 03735T48 Page 1 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY Facility Maximum Permitted Emissions Emission Rate Toxic Air Pollutant - - - Emission During During Past Limit 3Q22 Quarter Acetaldehyde 0 lb. 0.01 lb/hr 395 lb/hr Acetic Acid 405 lb. 0.83 lb/hr 54.1 lb/hr Acrolein 0 lb. 0.00 lb/hr 1.17 lb/hr Acrylonitrile 0 lb. 0.00I lb/yr 240 lb/yr Ammonia 659 lb. 1.13 lb/hr 39.5 lb/hr Ammonium Chromate 0 lb. 0.00 lb/day 0.54 lb/day Ammonium Dichromate 0 lb. 0.00 lb/day 0.54 lb/day Aniline 0lb. 0.00lb/hr 14.621b/hr Arsenic & Inorganic Arsenic 0 lb. 0.11 lb/yr 0.37 lb/yr Aziridine 0lb. 0.00lb/day 5.261b/day Benzene 2 lb. 9.28 lb/yr 192 lb/yr Benzidene and salts 0 lb. 0.00 lb/yr 0.02 lb/yr Benzo(a)pyrene 0 lb. 0.00 lb/yr 52.8 lb/yr Benzyl Chloride 0 lb. 0.00 lb/hr 7.31 lb/hr Beryllium 0 lb. 0.01'lb/yr 6.56 lb/yr Beryllium Chloride 01 lb. 0.00;lb/yr 6.56 lb/yr Beryllium Fluoride 0 lb. 0.00 lb/yr 6.56 lb/yr Beryllium Nitrate 0'lb. 0.00 lb/yr 6.56 lb/yr Bis-chloromethyl Ether 0'�lb. 0.00 lb/yr 0.59 lb/yr Bromine 71 lb. 0.00 lb/hr 2.921b/hr 1,3-Butadiene 0 lb. 0.01'lb/yr 272 lb/yr Cadmium 0 lb. 0.59I lb/yr 8.8 lb/yr Cadmium Acetate 0�lb. 0.00 lb/yr 8.8 lb/yr Cadmium Bromide 0 lb. 0.00 lb/yr 8.8 lb/yr Calcium Chromate 0 lb. 0.00 lb/yr 0.13 lb/yr Carbon Disulfide 0 lb. 0.00 lb/day 163 lb/day Carbon Tetrachloride 0 lb. 0.00'�lb/yr 10,723 lb/yr Chlorine 410 lb. 0.19 lb/hr 13.1 lb/hr Chlorine 410 lb. 4.46 lb/day 32.9 lb/day Chlorobenzene 0 lb. 0.00'lb/day 1,929 lb/day Chloroform 0lb. 1.001b/yr 6,8821b/yr Chloroprene 0 lb. 0.00 lb/hr 51.1 lb/hr Chemours Company- Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 2 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant - Emission 3Q22 During Past Limit Quarter Chloroprene 0lb. 0.00lb/day 386lb/day Chromic Acid 0 lb. 0.02 lb/day 0.54 lb/day Chromium (VI) 0 lb. 0.00 lb/yr 0.13 lb/yr Cresol 0lb. 0.00 lb/hr 32.151b/hr para-(1,4) dichlorobenzene 0 lb. 0.00 lb/hr 965 lb/hr Dichlorodifluoromethane 0lb. 0.00lb/day 217,477lb/day Dichlorofluoromethane 0lb. 0.00lb/day 4381b/day Di(2-ethylhexyl)phthalate 0 lb. 0.00 lb/day 26.3 lb/day Dimethyl Sulfate 0 lb. 0.00 lb/day 2.63 lb/day 1,4-dioxane 0lb. 0.00lb/day 4911b/day E ichloroh drin 0 lb. 0.00 lb/ r 132,832lb/yr Ethyl Acetate 4 lb. 0.00 lb/hr 2,046 lb/hr Ethylenediamine 0 lb. 0.00 lb/hr 36.5 lb/hr Ethylenediamine 0lb. 0.00lb/day 263lb/day Ethylene Dibromide 0 lb. 0.00 lb/yr 6401b/yr Ethylene Dichloride 6 lb. 21.90 lb/yr 6,081 lb/yr Ethylene Glycol Monoethyl Ether 0 lb. 0.00 lb/hr 27.8 lb/hr Ethylene Glycol Monoethyl Ether 0 lb. 0.00 lb/day 105 lb/day Ethylene Oxide 0 lb. 0.00 lb/yr 43.2 lb/yr Ethyl Mercaptan 0 lb. 0.00 lb/hr 1.46 lb/hr Fluorides 0 lb. 0.06 lb/hr 3.65 lb/hr Fluorides 0lb. 1.461b/day 14.03lb/day Formaldehyde 10lb. 0.09lb/hr 2.191b/hr Hexach Iorocyclopentadiene 0 lb. 0.00 lb/hr 0.15 lb/hr Hexachlorocyclopentadiene 0lb. 0.00lb/day 0.531b/day Hexachlorodibenzo-p-dioxin 0 lb. 0.00 lb/yr 0.12 lb/yr n-Hexane 239lb. 10.081b/day 965lb/day Hexane isomers 0 lb. 0.00 lb/hr 5,262 lb/hr Hydrazine 0 lb. 0.00 lb/hr 0.53 lb/hr Hydrogen Chloride 167 lb. 0.26 lb/hr 10.2 lb/hr Hydrogen Cyanide 0 lb. 0.00 lb/hr 16.1 lb/hr Hydrogen Cyanide 0 lb. 1 0.00 lb/day 123 lb/day Chemours Company-Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 3 of 4 -F TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant -- Emission 3Q22 During Past - Limit Quarter Hydrogen Fluoride (High Stacks) 559 lb. 0.56 lb/hr 7.28 lb/hr Hydrogen Fluoride (High Stacks) 559 lb. 13.37 lb/day 52.45 lb/da Y Hydrogen Fluoride (Other sources) 0 lb. 0.56 lb/hr 2.7 lb/hr Hydrogen Fluoride (Other sources) 0 lb. 13.37 lb/day 19.4 lb/day Hydrogen Sulfide 35 lb. 0.02 lb/hr 30.7 lb/hr Maleic Anhydride 0 lb. 0.00 lb/hr 1.461b/hr Maleic Anhydride 0 lb. 0.00 lb/day 10.5 lb/day Manganese &Compounds 0 lb. 0.03 lb/day 27.2 lb/day Manganese Cyclopentadienyl Tricarbonyl 0 lb. 0.00 lb/day 0.53 lb/day Manganese Tetroxide 0 lb. 0.00 lb/day 5.44 lb/day Mercury, alkyl 0 lb. 0.00 lb/day 0.05 lb/day Y Y Y Mercury, aryl &a 1 inorganic lb. 0.00 lb/hr 0.53 lb/hr ga 0 Mercury,vapor 0 lb. 0.00 lb/hr 0.53 lb/hr Methyl Chloroform 0 lb. 0.00 lb/hr 3,581 lb/hr Methyl Chloroform 0 lb. 0.01 lb/day 10,523 lb/day Methylene Chloride 1,337 lb. 0.61 lb/hr 24.85 lb/hr Methylene Chloride 1,337 lb. 1,411 lb/yr 38,409 lb/yr Methyl Ethyl Ketone 258 lb. 0.55 lb/hr 1,293 lb/hr Methyl Ethyl Ketone 258 lb. 4.11 lb/day 3,245 lb/day Methyl Isobutyl Ketone 0 lb. 0.00 lb/hr 438 lb/hr Methyl Isobutyl Ketone 0 lb. 0.00 lb/day 2,245 lb/day Methyl Mercaptan 1 lb. 0.00 lb/hr 0.73 lb/hr Nickel Carbonyl 0 lb. 0.00 lb/day 0.53 lb/day Nickel Metal 0 lb. 0.02 lb/day 5.26 lb/day Nickel, soluble compounds 0 lb. 0.00 lb/day 5.261b/day Nickel Subsulfide 0 lb. 0.00 lb/yr 3.36 lb/yr Nitric Acid 31 1b. 0.01 lb/hr 14.6 lb/hr Nitrobenzene 0 lb. 0.00 lb/hr 7.31 lb/hr Nitrobenzene 0lb. 0.00lb/day 52.61b/day N-nitrosodimethylamine 0 lb. 0.00 lb/yr 80.0 lb/yr Pentachlorophenol 0 lb. 1 0.00 lb/hr 1 0.37 lb/hr Pentachlorophenol Olb. 1 0.00lb/day 2.63lb/day Chemours Company-Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 4 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant Emission 3Q22 During Past Limit Quarter Perchloroethylene 0lb. 0.00lb/yr 304,073lb/yr Phenol 0 lb. 0.00 lb/hr 13.9 lb/hr Phosgene 0lb. 0.00lb/day 2.19lb/day Phosphine 0 lb. 0.00 lb/hr 1.9 lb/hr Polychlorinated Biphenyls 0 lb. 0.00 lb/yr 133 lb/yr Potassium Chromate 0 lb. 0.00 lb/day 0.54 lb/day Potassium Dichromate 0 lb. 0.00 lb/day 0.54 lb/day Sodium Chromate 0 lb. 0.00 lb/day 0.54 lb/day Sodium Dichromate 0 lb. 0.00 lb/day 0.541b/day Strontium Chromate 0 lb. 0.00 lb/yr 0.13 lb/yr Styrene 0 lb. 0.00 lb/hr 155 lb/hr Sulfuric Acid 95 lb. 0.36 lb/hr 1.46 lb/hr Sulfuric Acid 95 lb. 5.29 lb/day 10.5 lb/day Tetrachlorodibenzo-p-dioxin 0lb. 0.00lb/yr 0.0048lb/yr 1,1,1,2-Tetrachloro-2,2,Difluoroethane 0 lb. 0.00 lb/day 45,600 lb/day 1,1,2,2-Tetrachloro-1,2,Difluoroethane 0lb. 0.00lb/day 45,600lb/day 151,1,2-tetrachloroethane 0lb. 0.00lb/yr 10,082lb/yr Toluene 8,414 lb. 6.06 lb/hr 818 lb/hr Toluene 8,414 lb. 98.61 lb/day 4,122 lb/day Toluene-2,4-diisocyanate 0 lb. 0.00 lb/hr 0.22 lb/hr Toluene-2,4-diisocyanate 0lb. 0.00lb/day 0.44lb/day Trichloroethylene 01b. 0.00lb/yr 94,423lb/yr Trichlorofluoromethane 0 lb. 0.00 lb/day 8,185 lb/hr 1,1,2-Trichloro-1,2,2-Trifluoroethane 848lb. 4.60lb/hr 13,885lb/hr Vinyl Chloride 0 lb. 0.00 lb/yr 608 lb/yr Vinylidine Chloride 0 lb. 0.00 lb/day 105 lb/day Xylene 2,358 lb. 5.17 lb/hr 950 lb/hr Xylene 25358lb. 37.68lb/day 2,368lb/day Zinc Chromate 0 lb. 0.00 lb/yr 0.13 lb/yr Chemours Company - Fayetteville Works 3Q22 Air Permit No. 03735T48 Page 1 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant Emission During During Past Limit 3Q22 Quarter Acetaldehyde 0 lb. 0.01 lb/hr 395 lb/hr Acetic Acid 405�lb. 0.83 lb/hr 54.1 lb/hr Acrolein 0 lb. 0.00 lb/hr 1.17 lb/hr Acrylonitrile 0 lb. 0.00 lb/yr 240 lb/yr Ammonia 659 lb. 1.13 lb/hr 39.5 lb/hr Ammonium Chromate 0'lb. 0.00 lb/day 0.54 lb/day Ammonium Dichromate 0 lb. 0.00 lb/day 0.541b/day Aniline 0lb. 0.001b/hr 14.621b/hr Arsenic & Inorganic Arsenic 0,lb. 0.11 'lb/yr 0.37 lb/yr Aziridine 0'i lb. 0.00'I lb/day 5.26 lb/day Benzene 2 lb. 9.28 lb/yr 192 lb/yr Benzidene and salts 0'lb. 0.00 lb/yr 0.02 lb/yr Benzo(a)pyrene 0 lb. 0.00 lb/yr 52.8 lb/yr Benzyl Chloride 0 lb. 0.00 lb/hr 7.31 lb/hr Beryllium 0 lb. 0.01 lb/yr 6.56 lb/yr Beryllium Chloride 0 lb. 0.00 lb/yr 6.56 1b/yr Beryllium Fluoride 0 lb. 0.00 lb/yr 6.56 lb/yr Beryllium Nitrate 0 lb. 0.00'lb/yr 6.56 lb/yr Bis-chloromethyl Ether 0 lb. 0.00 lb/yr 0.59 lb/yr Bromine 7'lb. 0.00 lb/hr 2.92 lb/hr 1,3-Butadiene 0 lb. 0.01 lb/yr 272 lb/yr Cadmium 0 lb. 0.59 lb/yr 8.8 lb/yr Cadmium Acetate 0 lb. 0.00 lb/yr 8.8 lb/yr Cadmium Bromide 0'lb. 0.00'lb/yr 8.8 lb/yr Calcium Chromate 0I lb. 0.00,lb/yr 0.13 lb/yr Carbon Disulfide 0 lb. 0.00 lb/day 163 lb/day Carbon Tetrachloride 0 lb. 0.00 j lb/yr 10,723 lb/yr Chlorine 410 lb. 0.19!lb/hr 13.1 lb/hr Chlorine 410 lb. 4.46!lb/day 32.9 lb/day Chlorobenzene 0 lb. 0.00 lb/day 1,929 lb/day Chloroform 0 it 1.00',lb/yr 6,882 lb/yr Chloroprene 0 lb. 0.001 lb/hr 51.1 1b/hr i Chemours Company-Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 2 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant Emission 3Q22 During Past Limit Quarter Chloroprene 0lb. 0.00lb/day 386lb/day Chromic Acid 0 lb. 0.02 lb/day 0.54 lb/day Chromium (VI) 0 lb. 0.00 lb/yr 0.13 lb/yr Cresol Olb. 0.00 lb/hr 32.15lb/hr para-(1,4) dichlorobenzene 0 lb. 0.00 lb/hr 965 lb/hr Dichlorodifluoromethane 0lb. 0.00lb/day 217,477lb/day Dichlorofluoromethane 0lb. 0.00lb/day 438lb/day Di(2-ethylhexyl)phthalate 0 lb. 0.00 lb/day 26.3 lb/day Dimethyl Sulfate 0 lb. 0.00 lb/day 2.63 lb/day 1,4-dioxane 0lb. 0.00lb/day 4911b/day Epichlorohydrin 0lb. 0.00lb/yr 132,8321b/yr Ethyl Acetate 4 lb. 0.00 lb/hr 2,046 lb/hr Ethylenediamine 0 lb. 0.00 lb/hr 36.5 lb/hr Ethylenediamine 0lb. 0.00lb/day 263lb/day Ethylene Dibromide 0 lb. 0.00 lb/yr 640 lb/yr Ethylene Dichloride 6 lb. 21.90 lb/yr 6,081 lb/yr Ethylene Glycol Monoethyl Ether 0 lb. 0.00 lb/hr 27.8 lb/hr Ethylene Glycol Monoethyl Ether 0 lb. 0.00 lb/day 105 lb/day Ethylene Oxide 0 lb. 0.00 lb/yr 43.2 lb/yr Ethyl Mercaptan 0 lb. 0.00 lb/hr 1.46 lb/hr Fluorides 0 lb. 0.06 lb/hr 3.65 lb/hr Fluorides 0lb. 1.46lb/day 14.03lb/day Formaldehyde 10lb. 0.091b/hr 2.19lb/hr Hexachlorocyclopentadiene 0 lb. 0.00 lb/hr 0.15 lb/hr Hexachlorocyclopentadiene 0lb. 0.00lb/day 0.53lb/day Hexachlorodibenzo-p-dioxin 0 lb. 0.00 lb/yr 0.12 lb/yr n-Hexane 239lb. 10.08lb/day 965lb/day Hexane isomers 0 lb. 0.00 lb/hr 5,262 lb/hr Hydrazine 0 lb. 0.00 lb/hr 0.53 lb/hr Hydrogen Chloride 167 lb. 0.26 lb/hr 10.2 lb/hr Hydrogen Cyanide 0 lb. 0.00 lb/hr 16.1 lb/hr Hydrogen Cyanide 0 lb. 0.00 lb/day 123 lb/day r Chemours Company - Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 3 of 4 TABLE I TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant Emission 3Q22 During Past -- Limit Quarter Hydrogen Fluoride (High Stacks) 559 lb. 0.56 j lb/hr 7.28 lb/hr Hydrogen Fluoride (High Stacks) 559 lb. 13.37'lb/day 52.45 lb/day Hydrogen Fluoride (Other sources) 0 lb. 0.56 lb/hr 2.7 lb/hr Hydrogen Fluoride (Other sources) 0 lb. 13.37 lb/day 19.4 lb/day Hydrogen Sulfide 35 lb. 0.02 lb/hr 30.7 lb/hr Maleic Anhydride 0'lb. 0.00 lb/hr 1.46 lb/hr Maleic Anhydride 01 lb. 0.00 lb/day 10.5 lb/day Manganese & Compounds 0 lb. 0.03 lb/day 27.2 lb/day Manganese Cyclopentadienyl Tricarbonyl 0 lb. 0.00 lb/day 0.53 lb/day Manganese Tetroxide 0 lb. 0.00 lb/day 5.44 lb/day Mercury, alkyl 0 lb. 0.00 lb/day 0.05 lb/day Mercury, aryl & inorganic 0'lb. 0.00'i lb/hr 0.53 lb/hr Mercury, vapor 0 lb. 0.00 lb/hr 0.53 lb/hr Methyl Chloroform 0 lb. 0.00I lb/hr 3,581 lb/hr Methyl Chloroform 0,lb. 0.01 lb/day 10,523 lb/day Methylene Chloride 1,337 lb. 0.61 lb/hr 24.85 lb/hr Methylene Chloride 11337I lb. 11411 lb/yr 38,409 lb/yr Methyl Ethyl Ketone 2581 lb. 0.55 lb/hr 1,293 lb/hr Methyl Ethyl Ketone 25 81 lb. 4.11 lb/day 3,245 lb/day Methyl Isobutyl Ketone 0'lb. 0.00 lb/hr 438 lb/hr Methyl Isobutyl Ketone 0 lb. 0.00 lb/day 2,245 lb/day Methyl Mercaptan 1 lb. 0.00 lb/hr 0.73 lb/hr Nickel Carbonyl 0 lb. 0.00 lb/day 0.53 lb/day Nickel Metal 0 lb. 0.02 lb/day 5.26 lb/day Nickel, soluble compounds 0 lb. 0.00'lb/day 5.26 lb/day Nickel Subsulfide 0 lb. 0.00 lb/yr 3.36 lb/yr Nitric Acid 31 lb. 0.01 lb/hr 14.6 lb/hr Nitrobenzene 0 lb. 0.00 lb/hr 7.31 lb/hr Nitrobenzene 0 lb. 0.00 lb/day 52.6 lb/day N-nitrosodimethylamine 0 lb. 0.00 lb/yr 80.0 lb/yr Pentachlorophenol 0 lb. 0.00 lb/hr 0.37 lb/hr Pentachlorophenol Olb. 0.00lb/day 2.631b/day Chemours Company-Fayetteville Works During 3Q22 Air Permit No. 03735T48 Page 4 of 4 TABLE 1 TOXIC AIR POLLUTANT EMISSIONS SUMMARY (continued) Facility Maximum Emissions Emission Rate Permitted Toxic Air Pollutant Emission 3Q22 During Past Limit Quarter Perchloroethylene 0lb. 0.00lb/yr 304,0731b/yr Phenol 0 lb. 0.00 lb/hr 13.9 lb/hr Phosgene 0lb. 0.00lb/day 2.19lb/day Phos hine 0 lb. 0.00 lb/hr 1.9lb/hr Polychlorinated Biphenyls 0 lb. 0.00 lb/yr 133 lb/yr Potassium Chromate 0 lb. 0.00 lb/day 0.54 lb/day Potassium Dichromate 0 lb. 0.00 lb/day 0.54 lb/day Sodium Chromate 0 lb. 0.00 lb/day 0.54 lb/day Sodium Dichromate 0 lb. 0.00 lb/day 0.54 lb/day Strontium Chromate 0 lb. 0.00 lb/yr 0.13 lb/yr Styrene 0 lb. 0.00 lb/hr 155 lb/hr Sulfuric Acid 95 lb. 0.36 lb/hr 1.46 lb/hr Sulfuric Acid 95 lb. 5.29 lb/day 10.5 lb/day Tetrachlorodibenzo-p-dioxin 0lb. 0.00lb/yr 0.00481b/yr 1,1,1,2-Tetrachloro-2,2,Difluoroethane 0lb. 0.00lb/day 45,600lb/day 1,1,2,2-Tetrachloro-1,2,Difluoroethane 0lb. 0.00lb/day 45,600lb/day 1,1,1,2-tetrachloroethane 0lb. 0.00lb/yr 10,0821b/yr Toluene 8,414 lb. 6.06 lb/hr 818 lb/hr Toluene 8,414 lb. 98.61 lb/day 4,122 lb/day Toluene-2,4-diisoc anate 0 lb. 0.00 lb/hr 0.221b/hr Toluene-2,4-diisocyanate 0lb. 0.00lb/day 0.441b/day Trichloroethylene 0lb. 0.00lb/yr 94,4231b/yr Trichlorofluoromethane 0 lb. 0.00 lb/day 8,185 lb/hr 1,1,2-Trichloro-1,2,2-Trifluoroethane 848lb. 4.601b/hr 13,885lb/hr Vinyl Chloride 0 lb. 0.00 lb/yr 608 lb/yr Vinylidine Chloride 0 lb. 0.00 lb/day 105 lb/day Xylene 2,358 lb. 5.17 lb/hr 950 lb/hr Xylene 2,358lb. 37.68lb/day 2,3681b/day Zinc Chromate 0 lb. 0.00 lb/yr 0.13 lb/yr �M N �il��k I��' �✓ The Chemours Company Chemours Fayetteville Works 22828 NC Highway 87 W Fayetteville,NC 28306 Certified Mail: 7017 1450 0002 3902 4379S%IOPAU And sent via email l� Z 2Z-- October 28, 2022 Heather Carter Fayetteville Regional Supervisor Division of Air Quality 225 Green Street, Suite 714 Fayetteville,NC 28301 Re: Continuous Compliance Report Title V Permit No: 03735T48 Facility ID: 0900009 Chemours Company—Fayetteville Works Dear Ms.Carter, This submittal is intended to satisfy Section 2.2 D.1 j of the facility's Title V Air Permit,which requires Chemours to submit quarterly continuous compliance reports. Please find in Table 1 on the following page a summary of the GenX Compounds emissions for the 12- month period ending September 30,2022. The spreadsheet file with the calculations underlying the GenX Compounds emissions presented in Table 1 was prepared by our consultant,ERM NC,Inc. ("ERM"). The spreadsheet file also provides the emissions test data,control device data,and production data underlying the calculations, as well as notes on the calculation methodologies. Because the spreadsheet file contains confidential business information of Chemours,we will send that spreadsheet file under separate cover directly to you,and the spreadsheet file will not be further distributed or posted on Chemours' website. The control device operating parameters for the thermal oxidizer/scrubber system are provided under separate cover in the quarterly Thermal Oxidizer report and control device operating parameters for the carbon beds are provided under separate cover in the quarterly Carbon Bed report. The monitoring data is maintained onsite and available for review upon request. If you have any questions,please contact me at christel.e.comptongchemours.com. Sincerely, L."G CA,-V Christel Compton Environmental Manager Chemours—Fayetteville Works RECEIVED NOV 0 2 2022 , - /�f2m OEWAYE7TEVILLE REMO NAL OFFICE Table 1 Chemours-Fayetteville Works GenX Emissions Summary 12-Month Rolling Emissions (Per Pe rmit Condition 2.2.D.1) Equipment/ Accidental '1'h 12-Month Rolling lie Oxidize OtherProcess Monthly Facility- Fugitive Release Sum of Facility-Wide Month Notes Emissions Emissions Wide Emissions Emissions Emissions (lbs) Ohs) (lbs) Emissions Ohs) (lbs) (lbs) October 2021 Actual 0.250 0.006 0.002 0.053 0.311 32.837 November 2021 Actual 0.945 0.090 0.007 0.105 1.147 32.220 December 2021 Actual 0.297 0.000 0.002 0.069 0.368 31.199 January 2022 Actual 0.949 0.070 0.006 0.030 1.055 29.618 Februuy 2022 Actual 1.555 0.103 0.018 0.084 1.760 29.722 March 2022 Actual 0.250 0.000 0.002 0.120 0.372 17.456 A r112022 Actual 0.636 0.560 0.006 0.100 1.302 16.356 May 2022 Actual 3.624 0.003 0.022 0.240 3.889 17.197 June 2022 Actual 1.718 0.238 0.021 0.116 2.094 16.679 July 2022 Actual 0.423 1.110 0.009 0.091 1.633 17.384 August 2022 Actual 1.342 0.000 0.002 0.250 1.594 16.891 September 2022 Actual 0.336 0.057 0.002 0.124 0.519 16.044 Annual Emdssions Limitation 23.027 2 US 165838124vl The Chemours Company Chemours Fayetteville Works 22828 NC Highway 87 W Fayetteville,NC 28306 Certified Mail: 7017 1450 0002 3902 4379 And sent via email October 28, 2022 Heather Carter Fayetteville Regional Supervisor Division of Air Quality 225 Green Street, Suite 714 Fayetteville,NC 28301 Re: Continuous Compliance Report Title V Permit No: 03 73 5T48 Facility ID: 0900009 Chemours Company—Fayetteville Works Dear Ms.Carter, This submittal is intended to satisfy Section 2.2 D.1.j of the facility's Title V Air Permit,which requires Chemours to submit quarterly continuous compliance reports. Please find in Table 1 on the following page a summary of the GenX Compounds emissions for the 12- month period ending September 30, 2022. The spreadsheet file with the calculations underlying the GenX Compounds emissions presented in Table 1 was prepared by our consultant,ERM NC, Inc. ("ERM"). The spreadsheet file also provides the emissions test data, control device data, and production data underlying the calculations, as well as notes on the calculation methodologies. Because the spreadsheet file contains confidential business information of Chemours,we will send that spreadsheet file under separate cover directly to you, and the spreadsheet file will not be further distributed or posted on Chemours' website. The control device operating parameters for the thermal oxidizer/scrubber system are provided under separate cover in the quarterly Thermal Oxidizer report and control device operating parameters for the carbon beds are provided under separate cover in the quarterly Carbon Bed report. The monitoring data is maintained onsite and available for review upon request. If you have any questions, please contact me at christel.e.compton a,cliemours.com. Sincerely, L"+,( Christel Compton Environmental Manager Chemours—Fayetteville Works Table 1 Chemours-Fayetteville Works GenX Emissions Summary 12-Month Rolling Emissions (Per Permit Condition 2.2.D.1) Equipment/ Accidental 12-Month Rolling ThermalOxidize Other Process Monthly Facility-Fugitive Release Sum of Facility-Wide Month Notes Emissions Emissions Wide Emissions Emissions Emissions Emissions (lbs) Obs) (]bs) Ohs) (lbs) (Ibs) October 2021 Actual 0.250 0.006 0.002 0.053 0.311 32.837 November 2021 Actual 0.945 0.090 0.007 0.105 1.147 32.220 December 2021 Actual 0.297 0.000 0.002 0.069 0.368 31.199 January 2022 Actual 0.949 0.070 0.006 0.030 1.055 29.618 February 2022 Actual 1.555 0.103 0.018 0.084 1.760 29.722 March 2022 Actual 0.250 0.000 0.002 0.120 0.372 17.456 Apr112022 Actual 0.636 0.560 0.006 0.100 1.302 16.356 May 2022 Actual 3.624 0.003 0.022 0.240 3.889 17.197 June 2022 Actual 1.718 0.238 0.021 0.116 2.094 16.679 July 2022 Actual 0.423 1.110 0.009 0.091 1.633 17.384 August 2022 Actual 1.342 0.000 0.002 0.250 1 1.594 16.891 September 2022 Actual 0.336 r 0.057 0.002 0.124 0.519 16.044 Annual Emissions Limitation 23.027 2 US 1658381240 IIMO 111 pa�v�r 77 The Chemours Company Chemours" Fayetteville Works 22828 NC Highway 87 W Fayetteville,NC 28306 RECEIVED OCT 31 2022 CZI�70-K) =-FAYETTEVILLE RMONAL OFFICE CERTIFIED MAIL ARTICLE NUMBER 7017 1450 0002 3902 4164 RETURN RECEIPT REQUESTED October 28, 2022 Heather Carter NCDEQ—Division of Air Quality 225 Green Street— Suite 714 Fayetteville,NC 28301 SUBJECT: Chemours Company—Fayetteville Works Title V Air Permit No. 03735T48 Facility ID No. 0900009 Quarterly Summary Report—Carbon Adsorbers—3rd Quarter 2022 Ms. Carter, Attached is the quarterly summary report for the period from July 1, 2022 to September 30, 2022 for the Chemours Fayetteville Works submitted pursuant to Air Quality Permit No. 03735T48. Enclosed you will find the required photocopies of this report. If you have any questions, please feel free to contact me at (910) 678-1213. Sincerely, Christel Compton Program Manager Attachment Chemours Company—Fayetteville Works Quarterly Report(per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 1 of 6 Carbon Adsorbers and Enhanced LDAR Program Quarterly Report (per Air Quality Permit No. 03735T48, Condition Section 2.2 D.1) Air Quality Permit No. 03735T48, Condition 2.2 D.1: "15A NCAC 02Q .0519(a)(7) and Consent Order" Pursuant to Section 2.2 D.l.m of the subject Title V permit,the permittee shall submit a quarterly summary report that includes monitoring and recordkeeping activities specified in Section 2.2 D.1. The summary report shall include the information recorded as required in Section 2.2 D.1.k and 1. For clarity, this report has been broken down into subsections for each monitoring and recordkeeping requirement contained in Sections 2.2 D.1.k. and 2.2 D.1.1. Section 2.2 D.l.m.i The summary report shall include the information recorded as required in Section 2.2 D.Lk and 1. Section 2.2 D.I.M. Records of all production data and hours of operation collected during performance tests Chemours submitted production data with the emissions reports for each performance test conducted. Additional production data and hours of operation are maintained onsite and are available upon request. Section 2.2 D.I.k.ii: Records of the calculations, and all supporting documentation, of annual GenX Compound emissions to demonstrate compliance with the emissions limitations specified in Section 2.2 D.1.a. Quarterly emissions reports are submitted using the 12-month rolling calculation in January,April, July, and October. Section 2.2 D.I.k.iii: If the emission source is not operating, a record of this fact, along with the corresponding date and time. Records indicating periods when the emission sources were not operating are being maintained and available upon request. A summary list of dates the emission sources were not operating is as follows: Chemours Company—Fayetteville Works Quarterly Report (per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 2 of 6 Area No. of days Specific dates Comments not operating VE North 15 days (7/12, 7/15, 7/18-7/23) (8/24-8/30) Campaign turnaround PPA 22 days (7/2, 7/9, 7/22, 7/23, 7/28-7/31) Scheduled downtime; no (8/1-8/9, 8/27) (9/3, 9/10, 9/17, issues 9/24) VE South 0 days n/a No issues Semiworks 72 days (7/1-7/26, 7/29-7/31) (8/5-8/7, Small batch process; Limited 8/9-8/14, 8/24-8/31) (9/1, 9/5- production 9/30) Section 2.2 D.Lk.iv: Records of all inspections and maintenance conducted for the Carbon Adsorbers (ID Nos.ACD A2 and NCD-Q3) as specified in Section 2.2 D.1.d. The Carbon Adsorber manufacturer does not provide any recommendations on a routine maintenance schedule, however, Chemours has developed a preventive maintenance plan for the Carbon Adsorbers. In addition, annual inspections of the structural integrity of the carbon adsorber systems and the duct work and piping leading to the carbon adsorbers are required. In accordance with a letter issued by DAQ to Chemours on November 2, 2021, carbon bed replacement schedules for PPA and VE South were approved and are as follows: • Replace the carbon in the PPA Carbon Adsorber when operating times reach 2,950—3,050 operating hours. • Replace the carbon in the VE-South Indoor Fugitives Carbon Adsorber annually (once every 12 months). Note:Carbon changeouts reset the operating hours count to zero. Carbon changeout Operating Operating hours at time Previous carbon date hours at end of of carbon change changeout date quarter PPA None this 1428 hours n/a 06/27/22 quarter VE South 10/20/2021 The following is a summary of Carbon Adsorber inspections and maintenance conducted this quarter. Note: any carbon changeouts will automatically include internal and external inspections as part of the changeout. Chemours Company—Fayetteville Works Quarterly Report (per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 3 of 6 VE North Carbon Unit Date Completed Inspections None this quarter n/a Maintenance None this quarter n/a Repairs None this quarter n/a PPA Carbon Unit Date Completed Inspections None this quarter n/a Maintenance None this quarter n/a Repairs None this quarter n/a VE South Carbon Unit Date Completed Inspections None this quarter n/a Maintenance None this quarter n/a Repairs None this quarter n/a Semiworks Carbon Unit Date Completed Inspections None this quarter n/a Maintenance None this quarter n/a Repairs None this quarter n/a Section 2.2 D.l.k.v: Records of all instances of process shutdowns, including those triggered by the pressure differential alarms associated with the carbon adsorber systems. Records of all instances of process shutdowns that occurred during this quarter are shown below: Area No. of days Specific dates Comments not operating VE North 15 days (7/12, 7/15, 7/18-7/23) (8/24-8/30) Campaign turnaround; Carbon change PPA 22 days (7/2, 7/9, 7/22, 7/23, 7/28-7/31) Scheduled downtime; no (8/1-8/9, 8/27) (9/3, 9/10, 9/17, issues 9/24) VE South 0 days n/a No issues Semiworks 72 days (7/1-7/26, 7/29-7/31) (8/5-8/7, Small batch process; Limited 8/9-8/14, 8/24-8/31) (9/1, 9/5- production 9/30) Chemours Company—Fayetteville Works Quarterly Report (per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 4 of 6 During this quarter, there were no instances where a process shutdown was triggered by the pressure differential alarms associated with any of the carbon adsorber systems. Detailed process operating times are maintained onsite and available upon request. Section 2.2 D.I.k.vi: Records of all inspections and calibration of monitoring equipment as required in Section 2.2 D.I.f and D.1.h. (2.2 D.l.f.)—Inspection and calibration records for all equipment associated with the DCS system are maintained onsite and available upon request. The procedures and schedule for maintenance and servicing of the DCS system is outlined in the site-specific monitoring plan. It provides details on calibration, preventive maintenance, spare parts, data recording and calculations, accuracy, corrective action for malfunctioning CMS, ongoing operation and maintenance, and data quality assurance procedures. A copy of the site-specific monitoring plan is maintained onsite and available upon request. (2.2 D.Lh.) - TEAM Industrial Services (Wilmington, NC office) is contracted to satisfy the monitoring requirements for fugitive emissions from process equipment. All monitoring records and calibration records for the monitoring equipment (TVA) are maintained onsite and available for review upon request. Section 2.2 D.1.l.i: A copy of each test report and compliance report submitted to NC DAQ to comply with Section 2.2 D.I. including all documentation supporting any compliance report. Chemours continues to submit to the NC DAQ a copy of each emissions test report and compliance reports, including supporting documentation as specified in the Title V permit. The test reports and compliance reports are maintained onsite and available upon request. Section 2.2 D.I.l.H. The most recent copy of the approved Carbon Adsorber shutdown and malfunction plan required in Section 2.2 D.I.g. Records of instances where the differential pressure monitors required in Section 2.2 D.I.f have resulted in process shutdowns. Carbon Adsorber operational procedures are maintained onsite and available upon request. During this reporting quarter, there were no instances that occurred where a process shutdown was triggered by the pressure differential alarms associated with the Carbon Adsorber systems. Detailed process operating times are maintained onsite and available upon request. Section 2.2 D.I.l.iii: The most recent copy of the approved Enhanced Leak Detection and Repair Program required in Section 2.2 D.I.h. The most recent copy of the Enhanced Leak Detection and Repair(LDAR)program was submitted on August 14, 2019 to the NC DAQ Fayetteville Regional Office. Chemours Company—Fayetteville Works Quarterly Report(per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 5 of 6 Section 2.2 D.I.l.iii.A: Pressure testing records, including, but not limited to, the date of inspection, results of the inspection/pressure testing, repairs made to any equipment found to be leaking during pressure testing, and follow-up pressure testing to verify successful repair. Pressure testing was completed as required and records are maintained onsite and are available upon request. During this reporting quarter, there were no instances of equipment found to be leaking during pressure testing,therefore,no repairs were required for any equipment. . ... inspection including . . . Section 2.2 D.1.l.iii.B: AVO inspection records, including the completed checklist specified in Section 2.2 D.I.h.ii.0 and inspection results including any leaks found and repair actions taken. AVO inspections were completed as required and the records are maintained onsite and are available upon request. During this reporting quarter, the AVO inspections did not find evidence of any leaks. Section 2.2 D.I.I.iii.C. Method 21 and enhanced area monitoring results. Method 21 monitoring is conducted by TEAM Industrial Services for the Enhanced LDAR program. All monitoring reports and records of leaks found, repairs made, and re-monitoring results are maintained onsite and are available upon request.During this reporting quarter,Method 21 and enhanced area monitoring results identified no components with monitored results exceeding the lower leak definition. Section 2.2 D.I.I.ii.D: Replacement program for valves and connectors logs of leakers and repair attempts. The replacement program for components identified as `leakers' is detailed in the Enhanced LDAR Procedure. A 12-month rolling log is used to record and track all readings above the lower leak definition to assist with the component replacement program. The following is a summary of the components recorded as exceeding the lower leak definition as defined by the permit: July 2022—no components exceeding the lower leak definition. August 2022—no components exceeding the lower leak definition. September 2022—no components exceeding the lower leak definition. There have been outdoor valves replaced with Bellows or other secondary packing to reduce the chance of fugitive leaks. Assessments for valve replacements will continue and is a part of continual improvement. Chemours Company—Fayetteville Works Quarterly Report (per 2.2 D.1)—3rd Quarter 2022 Air Permit No. 03735T48 Page 6 of 6 Section 2.2 D.l.m.ii The Permittee shall include in the summary report any excess emissions that have occurred during the reporting period. Excess emissions are defined as any calculated annual rolling average GenX Compound emissions rate, calculated as required in Section 2.2 D.La, above, that exceeds the emission limit in Section 2.2 D.1.a. There were no excess emissions during this reporting period. The 12-month rolling calculation for HFPO-DA remained below the 23.027 pounds per year limit. TM At �►I o� I�� ✓ The Chemours Company Chemours- Fayetteville Works 22828 NC Highway 87 W Fayetteville,NC 28306 RECEIVED OCT 3 12022 ,i✓7jaiY? DEQ-FAYETTEVILLE REOIONAL OFFICE CERTIFIED MAIL ARTICLE NUMBER 7017 14.50 0002 3902 4171 RETURN RECEIPT REQUESTED October 28, 2022 Heather Carter NCDEQ—Division of Air Quality 225 Green Street—Suite 714 Fayetteville,NC 28301 SUBJECT: Chemours Company—Fayetteville Works Title V Permit Quarterly Summary Report for Thermal Oxidizer—3Q 2022 Air Permit No. 03735T48 Facility ID No. 0900009 Ms. Carter, Attached is the quarterly summary report for the period from July 1, 2022 to September 30, 2022 for the Chemours Fayetteville Works Thermal Oxidizer per Section 2.1 B.11.n pursuant to Air Quality Permit No. 03735T48. Enclosed you will find the required photocopies of this report. If you have any questions, please feel free to contact me at (910) 678-1213. Sincerely, J , --- �. Christel Compton Program Manager Attachment Chemours Company—Fayetteville Works Quarterly Report (per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 1 of 8 Thermal Oxidizer and 4-Sta2e Scrubber System Quarterly Report (per Air Quality Permit No. 03735T48, Condition 2.1 Air Quality Permit No. 03735T48, Condition 2.1 B.11: "15A NCAC 02Q .0519(a)(7) and Consent Order" Pursuant to Section 2.1 B.11.n. of the subject Title V permit, the permittee shall submit a quarterly summary report that includes monitoring and recordkeeping activities specified in Section 2.1 B.II.f. through B.11.n. The summary report shall include the information recorded as required in Section 2.1 B.11 f. through B.11.n. For clarity, this report has been broken down into subsections for each monitoring and recordkeeping requirement contained in Sections 2.1 B.II.f. through 2.1 B.11.n. Section 2.1 BALL Emissions of all PFAS, including GenX compounds,from the following emissions sources (ID Nos. NSA,NS-B,NS-C,NS-D-1,NS-E,NS-F,NS-G-1,NS-K,NS-M,NS-N,NS-O, and NS-P) shall be controlled by a Thermal Oxidizer and 4-Stage Scrubber System (ID Nos. NCD-QI and NCD-Q2). The Permittee shall perform inspections and maintenance as recommended by the manufacturer. In addition to the manufacturer's recommendations, the inspection and maintenance requirement shall include: Section 2.1 B.11 f.is Hourly visual or positive detection by flame scanner checks of the Thermal Oxidizer flame and burner while in operation and annual inspections of the burner assemblies, blowers,fans, dampers, refractory lining, oxidizer shell,fuel lines, and ductwork. The DCS/CMS provides continuous monitoring of the flame and burner by using two separate infrared flame scanners. The data historian application(IP21) collects real-time process data from the DCS to provide control and supervision of the process. The flame can also be detected visually by a view port. The following table includes a summary of periods when the flame was not detected within the Thermal Oxidizer combustion chamber: Table 1: Summary of Periods When a Flame Was Not Detected Date Duration Reason 8/18/22 13 minutes System interlocked due to short circuit in signal cord. 9/14/22 196 minutes System interlocked due to DCS circuit board failure. 9/21/22 51 minutes Circuit breaker tripped when the emergency generator was taken offline to perform service. Total unscheduled flameout duration for the quarter= 4.33 hours Chemours Company—Fayetteville Works Quarterly Report (per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 2 of 8 Table 2: Scheduled Thermal Oxidizer Shutdowns During This Quarter Date Duration Reason 0 hours There were no scheduled shutdowns during this quarter. At no time were the processes allowed to vent to the atmosphere without being controlled by the Thermal Oxidizer and 4-Stage Scrubber System which includes the times during the above conditions. All flows were held in the accumulator tanks until the flame could be reestablished and target temperature achieved. Annual inspections of the burner assemblies, blowers, fans, dampers, refractory lining, oxidizer shell, fuel lines, and ductwork were completed in October 2021 during the annual TAR shutdown. Inspection and maintenance records are maintained onsite and are available upon request. Section 2.1 B.H.J.ii: Annual inspection of scrubber spray nozzles to detect clogging or corrosion damage of nozzles and perform maintenance and repair when necessary to ensure proper operation of the scrubber. Annual inspection of the scrubber spray nozzles was completed in October 2021 during the annual TAR shutdown. During this quarter, there were no issues noted with the scrubber spray nozzles. Inspection and maintenance records are maintained onsite and are available upon request. Section 2.1 B.11 f.iii: Annual inspection of scrubber packing material to ensure proper packing depth and to check for clogging. The annual inspection of the scrubber packing material was completed during the annual shutdown in October 2021. Inspection and maintenance records are maintained onsite and are available upon request. Section 2.1 B.11 f iv: Annual inspection, cleaning, and calibration of all associated instrumentation. Annual inspections, cleaning, and calibration of associated instrumentation was completed in October 2021 during the annual TAR shutdown. Inspection and maintenance records are maintained onsite and are available upon request. Chemours Company—Fayetteville Works Quarterly Report (per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03 73 5T48 Page 3 of 8 Section 2.1 B.11 f v: In addition to annual inspections, the Permittee shall also conduct the inspections required in paragraphs i. thru iv., above, whenever the Thermal Oxidizer and 4- Stage Scrubber System are nonoperational for a minimum of 72 hours. Table 3: Thermal Oxidizer&Scrubber System Nonoperational Hours Summary System Total Nonoperational Reason/Cause Hours during this Quarter Thermal Oxidizer 4.33 Refer to Tables 1 & 2 for periods when a flame was not detected and any scheduled shutdowns. Section 2.1 8.11.f.i 4-Stage Scrubber 0 N/A The Thermal Oxidizer and 4-Stage Scrubber System were not nonoperational for more than 72 consecutive hours during this quarter. Section 2.1 B.11. The Permittee shall develop, and submit to NC DAQ for approval, a site specific monitoring plan that addresses design, data collection, and quality assurance/quality control elements for operating each CMS installed according to Section 2.1 B.11.h. and B.11.i. The monitoring plan shall address the following: Section 2.1 B.11.g.is Initial and any subsequent calibration of the CMS. Section 2.1 B.11.g.ii: Determination and adjustment of the calibration drift of the CMS. Section 2.1 B.11 g.raa. Preventive maintenance of the CMS, including spare parts inventory. Section 2.1 B.11.g.iv: Data recording, calculations, and reporting. Section 2.1 B.11.g.v: Accuracy audit procedures, including sampling and analysis methods. Section 2.1 B.11.g.vi: Program of corrective action for a malfunctioning CMS. Section 2.1 B.H.g.vii: Ongoing operation and maintenance procedures. Section 2.1 B.11.g.viii: Ongoing data quality assurance procedures. A detailed site-specific monitoring plan for the Thermal Oxidizer and 4-Stage Scrubber System was submitted to NC DAQ on November 27, 2019. It provides details on calibration, preventive maintenance, spare parts, data recording and calculations, accuracy, corrective action for malfunctioning CMS, ongoing operation and maintenance, and data quality assurance procedures. A copy of the site-specific monitoring plan is maintained onsite and available upon request. Chemours Company—Fayetteville Works Quarterly Report(per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 4 of 8 Section 2.1 B.11.h The Permittee shall install, calibrate, maintain, and operate a CMS for the Thermal Oxidizer. The CMS shall include a continuous recorder capable of taking measurement at least once every 15 minutes. The Permittee shall operate the CMS according to the approved site-specific monitoring plan specified in Section 2.1 B.11.g., above, to ensure the following operational parameters are maintained. The Site has a DCS, capable of taking readings at least every 15 minutes. The DCS system is maintained and operated according to the approved site-specific monitoring plan. Section 2.1 B.Il.h.i: A minimum combustion chamber temperature of 1800 degrees Fahrenheit (3-hour rolling average). For this quarter, the lowest 3-hour rolling average combustion chamber temperature (while the Thermal Oxidizer was in operation) was 2,008 degrees Fahrenheit ff). During this quarter, while the emissions sources were in operation, there were no instances where the 3-hour rolling average combustion chamber temperature dropped below the minimum 1,800'F. Section 2.1 B.11.h.ii: A maximum Thermal Oxidizer inlet gas feed rate of 2,200 pounds per hour(3-hours rolling average). For this quarter,the maximum 3-hour rolling average inlet gas feed rate (combined total)was 935 lbs/hour. During this quarter, while the emissions sources were in operation, there were no instances where the 3-hour rolling average thermal oxidizer inlet gas feed rate exceeded 2,200 lbs/hour. Section 2.1 B.11.h.iii: Failure to operate the temperature monitor or inletfeed gas monitoring device identified, above, for at least 97 percent of the total operational time per quarterly reporting period shall constitute noncompliance with the emission limits in Section 2.1 B.II a. The DCS was operational 100% of the time during the quarter when the Thermal Oxidizer was operational. The DCS communicated and recorded the combustion chamber temperature and inlet feed gas flow rate data for 100% of the operational time. Section 2.1 B.11.i The Permittee shall install, calibrate, maintain, and operate the CMS for the 4-Stage Scrubber System. The CMS shall include a continuous recorder capable of taking a measurement at least Chemours Company—Fayetteville Works Quarterly Report(per 2.1 B.11)—3 rd Quarter 2022 Air Permit No. 03735T48 Page 5 of 8 once every 15 minutes. The Permittee shall operate the CMS according to the approved site- specific monitoring plan specified in Section 2.1 B.H.g., to ensure the following operational parameters are maintained. The Site has a DCS, capable of taking readings at least every 15 minutes. The CMS was operated according to the approved site-specific monitoring plan during the quarter. A copy of the site- specific monitoring plan is maintained onsite and available upon request. Section 2.1 B.H.i.is The scrubber liquor flow shall be a minimum of 40 gallons per minute for the fourth caustic scrubber stage. The lowest flow rate recorded during this quarter was 87 GPM. Records of scrubber liquor flow. rate are maintained onsite and available upon request. Section 2.1 B.H.i.ii: A minimum scrubber liquor pH, no less than 7.1 (3-hour rolling average) for the fourth scrubber stage. For this quarter, during the time the scrubber was in operation, the lowest 3-hour rolling average scrubber liquor pH was 8.2. Therefore, during this quarter, there were no instances where 3-hour rolling average scrubber liquor pH was below 7.1, while the emissions sources were in operation. Records of the scrubber liquor pH are maintained onsite and available upon request. Section 2.1 B.H.i.iii: Failure to operate the scrubber liquorflow meter orpHmeter, identified in i. and ii.,for at least 97 percent of the total operational time per quarterly reporting period shall constitute noncompliance with the emission limits in Section 2.1 B.H.a. The DCS was operational 100% of the time during the quarter when the system was operational, as were the scrubber liquor flow and pH meters. The DCS communicated and recorded the scrubber liquor flow rate and the pH reading for 100%of the operational time,while the emission sources were in operation. Section 2.1 B.H.J. Except as specified in Section 2.1 B.H.k., the Permittee shall operate the Thermal Oxidizer and 4-Stage Scrubber System at all times when the emission sources (ID Nos. NSA, NS-B, NS-C, NS-D-1,NS-E,NS-F,NS-G-1,NS-K,NS-M,NS-N,NS-O, and NS-P) are operating. During this quarter, the Thermal Oxidizer and 4-Stage Scrubber System was in operation at all times when the emissions sources were in operation. Records are maintained onsite and available upon request. Chemours Company—Fayetteville Works Quarterly Report(per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 6 of 8 Section 2.1 B.11.k. Prior to operation of the Thermal Oxidizer and 4-Stage Scrubber System, the Permittee shall develop, and submit to NC DAQ for approval, a detailed shutdown and malfunction plan for the Thermal Oxidizer and 4-stage Scrubber System that contains specific procedures for initiating the shutdown of process emission sources during periods of control device shutdown and malfunction, and a program of corrective action for malfunctioning processes, and control systems used to comply with the limits in Section 2.1 B.11.a. The Permittee shall keep a copy of the approved plan onsite. A Shutdown and Malfunction Plan for the Thermal Oxidizer and Y 4-Stage Scrubber System was submitted to NC DAQ on December 18,2019,which included a Proactive Maintenance Plan. The maintenance plan includes predictive maintenance, preventive maintenance, functional checks, corrective maintenance, and annual inspections to ensure the reliability of the Thermal Oxidizer and 4-Stage Scrubber System. A copy of the Shutdown and Malfunction Plan is maintained onsite and available upon request. Section 2.1 B.H.k.i: To ensure that the control devices are well maintained to minimize malfunctions, the plan shall include a maintenance schedule for the Thermal Oxidizer and 4- Stage Scrubber System that is consistent with, but not limited to the manufacturer's instructions and recommendations for routine and long-term maintenance, as specified in Section 2.1 B.11.h. and B.11,i. A Shutdown and Malfunction Plan was submitted to NC DAQ on December 18,2019 that includes a Proactive Maintenance Plan,which is the maintenance schedule for the Thermal Oxidizer and 4- Stage Scrubber System. The Proactive Maintenance Plan includes predictive maintenance, preventive maintenance, functional checks, corrective maintenance, and annual inspections to ensure the reliability of the Thermal Oxidizer and 4-Stage Scrubber system. A copy of the Shutdown and Malfunction Plan is maintained onsite and available upon request. Section 2.1 B.H.k.ii: An inspection schedule for each CMS installed on the Thermal Oxidizer and 4-Stage Scrubber System to ensure, at least once in each 24-hour period, that each CMS is properly functioning. The CMS is comprised of a DCS and IP21 and have various systems backup and other redundancies built into it to ensure, at least once in each 24-hour period,proper functioning of the system. The IP21 application has a series of queries that monitor aspects of the application and data provided by the DCS and will send email alerts to the various support teams to investigate and correct any potential malfunctions. The inspection schedule for the DCS is specified in the Shutdown and Malfunction Plan and is maintained onsite and available upon request. Chemours Company—Fayetteville Works Quarterly Report(per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 7 of 8 Section 2.1 B.Il.k.iii: At no time shall the emissions from the emissions sources (ID Nos. NS- A, NS-B, AS-C, ASD-1, NS-E, NS-F, AS-G-1, AS-K, NSM, NS-N, NS-O, and ASP) be allowed to vent to the atmosphere without being controlled in the Thermal Oxidizer and 4-Stage Scrubber System. During the reporting quarter, the emissions from the emission sources did not vent to the atmosphere without being controlled by the Thermal Oxidizer and 4-Stage Scrubber System. Section 2.1 B.11.1. The Permittee shall record the following information monthly in a logbook (written or electronic) that shall be maintained onsite and made available to NC DAQ upon request. Section 2.1 B.11.1.i.: Records of the continuous and 3-hour rolling average operating parameters specified in Section 2.1 B.11.h. and B.I Li.,for the Thermal Oxidizer and 4-Stage Scrubber System. The IP21 data historian application has the capability to store 5 years of process data that includes 3-hour rolling averages. Process data records are maintained onsite and available upon request. Section 2.1 B.11.l.ii.: If the emission sources are not operating, a record of this fact along with the corresponding date and time. Process operating times for the emissions sources are submitted to NC DAQ every 2 weeks. Detailed records are maintained onsite and available upon request. Section 2.1 B.11.l.iii.: Records o all inspections and maintenance conducted or the Thermal .f p f Oxidizer and 4-Stage Scrubber System, as specified in Section 2.1 B.11.f. Annual inspections and maintenance were completed in October 2021 during the annual TAR shutdown. Records of inspections and maintenance conducted are maintained onsite and available upon request. Section 2.1 B.11.l.iv.: Records associated with the site-specific monitoring plan specified in Section 2.1 B.11.g. Records associated with the site-specific monitoring plan are maintained onsite and available upon request. Section 2.1 B.H.m. The Permittee shall retain all results of performance testing conducted in accordance with Section 2.1 B.11.b. and B.Il.c., including development of the operating parameters, as specified in Section 2.1 B.H.h. and B.11.i., and the calculation of the Thermal Oxidizer and 4-Stage Chemours Company—Fayetteville Works Quarterly Report(per 2.1 B.11)—3rd Quarter 2022 Air Permit No. 03735T48 Page 8 of 8 Scrubber System control efficiency with respect to the control of all PFAS, including GenX compounds, and emissions from the emission sources (ID Nos. NSA, NS-B, NS-C, NS-D-1, NS-E,NS-F,NS-G-1,NS-K,NS-M,NS-N,NS-O, and NS-P). Records of results from performance testing conducted on the Thermal Oxidizer and 4-Stage Scrubber System have been submitted to the State and copies are maintained onsite and available upon request. Chemours has submitted stack testing reports for each performance test, along with supporting documentation that includes operational parameters for the Thermal Oxidizer and 4-Stage Scrubber System and for the emissions sources during the testing periods. The most recent stack testing results report was submitted to NC DAQ on March 25, 2022 that demonstrated a control efficiency that exceeded 99.99%. Section 2.1 B.11.n. The Permittee shall submit a quarterly summary report of monitoring and recordkeeping activities specified in Section 2.1 B.I Lf through B.11.n. All instances of deviations from the requirements of this permit must be clearly identified. During this quarter, there were no instances of deviations from the requirements of Section 2.1 B.11.f through 2.1 B.11.n of the air permit.