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HomeMy WebLinkAbout2021.04.21_Chemours VEN Report Intended for The Chemours Company – Fayetteville, North Carolina Document type Report Date April 2021 SOURCE EMISSIONS TESTING OF THE VINYL ETHERS NORTH CARBON BED Ramboll 7600 Morgan Road Liverpool, NY 13090 USA T 315-637-2234 F 315-637-2819 https://ramboll.com I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx SOURCE EMISSIONS TESTING OF THE VINYL ETHERS NORTH CARBON BED Project name PFAS Emissions Testing Project no. 1940100745 Recipient Christel Compton Document type Report Version 1 Date April 21, 2021 Prepared by Patrick Grady, Project Associate Checked by David Ostaszewski, PE, Senior Managing Engineer Ramboll 7600 Morgan Road Liverpool, NY 13090 USA T 315-637-2234 F 315-637-2819 https://ramboll.com I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx ________________________________ Patrick Grady Project Associate Ramboll ________________________________ David Ostaszewski, PE Senior Managing Engineer Ramboll This report has been reviewed and to the best of our knowledge the report is complete, and the results presented herein are accurate, error free, legible, and representative of the actual emissions measured during testing. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 1/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx CONTENTS 1. Introduction and Background 3 Testing Objective 3 Emissions Testing Program Participants 3 2. Process Description 5 Process Description 5 Operating Conditions During Testing 5 3. Summary of Test Program 6 Test Program Summary 6 4. Sampling and Analytical Procedures 7 Test Methods 7 Sampling Locations 7 Gas Velocity and Volumetric Flow Rate 7 Oxygen and Carbon Dioxide Concentrations 8 Moisture Content 8 HFPO-DA Emissions 8 4.6.1 HFPO-DA Sample Train and Equipment Preparation 9 4.6.2 HFPO-DA Sample Train Recovery 9 5. Emissions Test Results 10 Emission Test Results 10 Discussion and Conclusion 10 6. Quality Assurance/Quality Control 11 Equipment Calibration 11 Equipment Leak Checks 11 Reagent Blanks and Field Blanks 12 Test Data and Report Review 12 Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 2/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx LIST OF TABLES 1. Summary of Emission Test Results LIST OF APPENDICES A. Process Operating Data B. Schematic of the Test Locations C. Field Data and Calculations D. Laboratory Data E. Equipment Calibration Data Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 3/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 1. INTRODUCTION AND BACKGROUND Ramboll Americas Engineering Solutions, Inc. (Ramboll) was retained by The Chemours Company (Chemours) to conduct source emissions testing at its facility located in Fayetteville, North Carolina. Ramboll has prepared the following test report summarizing the results of the testing on behalf of Chemours. Testing Objective As provided in their Title V Air Permit, Chemours is required to evaluate hexafluoro-propylene oxide-dimer acid (HFPO-DA) emissions from a carbon bed adsorber at the Fayetteville Works facility. The objective of this test program was to collect field sample data from the inlet and outlet to the carbon bed serving the Vinyl Ethers North (VEN) process area to determine carbon bed replacement frequency. The source emissions test program was performed on March 9, 2021. Messrs. Patrick Grady, Jeff Sheldon, Antonio Anderson and Brian Goodhile and Ms. Samantha Waters of Ramboll conducted the emissions testing. Ms. Christel Compton and Mr. Edward Vega coordinated process operations with the emissions testing. There were no representatives from any of the regulatory agencies present to observe the field test program. This report presents a description of the sources tested, a summary of the scope of work conducted, sampling methods used, QA/QC procedures, and emission test results. The following section lists the testing program’s participants and their contact information. Emissions Testing Program Participants Facility Name: The Chemours Company Site Address: 22828 Hwy 87 W Fayetteville, NC 28306 Contact: Christel E. Compton e-mail: christel.e.compton@chemours.com Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 4/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx Source Testing Firm Name: Ramboll Address: 7600 Morgan Road Liverpool, NY 13090 Contact: Patrick Grady e-mail: Patrick.grady@ramboll.com Sample Analysis Laboratory Name: Eurofins TestAmerica, Knoxville Address: 5815 Middlebrook Pike Knoxville, Tennessee 37921 Contact: Courtney Adkins e-mail: courtney.adkins@testamericainc.com Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 5/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 2. PROCESS DESCRIPTION This section provides a description of the VEN process. Process Description VEN is part of the fluoromonomer area at the Fayetteville facility. This area produces fluorocarbon compounds used to produce Chemours products, such as Nafion® Krytox® and Viton®. Indoor air fugitive emissions from VEN are vented to a carbon bed which is then vented to atmosphere through the Division Stack. Process emissions from VEN are directed to a thermal oxidizer. Operating Conditions During Testing Source emissions testing was performed during normal operations of the VEN process. Facility personnel monitored and recorded process operations during the testing. Copies of the operating data were provided to Ramboll and are included in Appendix A of this report. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 6/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 3. SUMMARY OF TEST PROGRAM This section provides a summary of the testing scope of work conducted. Test methods used during the sampling program can be found in Section 4 of this report. Test Program Summary Emissions testing was conducted simultaneously at the inlet and outlet of the VEN carbon bed and the Division Stack serving VEN in order to evaluate potential emissions and removal efficiencies of HFPO-DA. The testing at each location was conducted in triplicate and each test run was 96 minutes in duration. Results of the source emission testing are reported in units of milligrams per dry standard cubic meter (mg/dscm) and pounds per hour (lb/hr). Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 7/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 4. SAMPLING AND ANALYTICAL PROCEDURES This section provides a description of the test methods that were utilized during the test program. Test Methods The test procedures were conducted in accordance with the most recent updates to the United States Environmental Protection Agency (USEPA) Reference Methods (RM) described in 40 CFR 60; Appendix A. RM 1: Sample and velocity traverses for stationary sources RM 2: Determination of stack gas velocity and volumetric flow rate (Type S pitot tube) RM 3: Determination of oxygen and carbon dioxide concentrations in emissions from stationary sources RM 4: Determination of moisture content in stationary sources Modified 0010: Determination of PFAS emissions from stationary sources (modified) Sampling Locations The sampling ports at the 36-inch inside diameter (ID) carbon bed inlet duct are located approximately 67 inches (1.9 diameters) downstream of a bend and approximately 61 inches (1.7 diameters) upstream of another bend. Test ports in the 36-inch ID carbon bed outlet duct are located approximately 58 inches (1.6 diameters) downstream of a bend and approximately 57 inches (1.6 diameters) upstream from another bend. A total of 12 traverse points were sampled on each diameter during each test run for a total of 24 traverse points at each test location. Traverse points were located in accordance with USEPA RM 1. Test ports in the 34-inch ID Division Stack are located approximately 30 feet downstream (11 diameters) of a disturbance and approximately 9 feet (3.2 diameters) from the stack exit. In accordance with USEPA RM 1, 6 traverse points were sampled on each diameter. Note that due to limited access to one of the test ports sampling was only conducted on one diameter for each test run at the Division Stack. Also, note that this test location is not part of the required quarterly testing. Schematics of the sample locations along with traverse point locations are provided in Appendix A. Gas Velocity and Volumetric Flow Rate Velocity was evaluated from differential pressure measurements using a stainless-steel Type-S pitot tube and oil manometer in accordance with USEPA RMs 1 and 2. These methods were conducted in conjunction with each test run. Exhaust gas volumetric flow rate in units of dry Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 8/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx standard cubic feet per minute (dscfm) were derived from velocity, temperature, molecular weight, and moisture measurements. Compound mass emission rates (lb/hr) were calculated using these volumetric flow rate data and compound concentrations. Oxygen and Carbon Dioxide Concentrations Concentrations of oxygen (O2) and carbon dioxide (CO2) were evaluated at both locations in accordance with modified USEPA RM 3 procedures using a Fyrite® combustion analyzer. A grab sample was collected and introduced into the Fyrite® for O2 and CO2 analysis. Moisture Content The moisture content of the sample trains was quantified utilizing procedures identified in USEPA RM 4. A sample of gas was continuously collected from each traverse point using a dry gas meter stack sampling system along with a series of impingers. The moisture content of the gas was measured as a change in the volume of the water collected in each impinger solution and the increased weight of the desiccant during the sampling period. HFPO-DA Emissions HFPO-DA emissions were evaluated in accordance with a modified USEPA Method 0010. The sample train consisted of a stainless-steel nozzle attached directly to a heated borosilicate glass- lined probe. The probe was connected directly to a heated borosilicate glass filter holder containing a solvent-extracted glass fiber filter. In order to minimize possible thermal degradation of the HFPO-DA, the probe and particulate filter were heated to just above stack temperature to minimize water vapor condensation before the filter. The filter holder exit was connected to a water-cooled coil condenser followed by a water-cooled sorbent module containing approximately 40 grams of XAD-2 resin. The XAD-2 inlet temperature was monitored to ensure that the module is maintained at a temperature below 20oC. The XAD-2 resin trap was followed by a condensate knockout impinger and a series of two impingers each containing 100-ml of high purity deionized water. The water impingers were followed by another condensate knockout impinger equipped with a second XAD-2 resin trap to account for any sample breakthrough. The final impinger contained approximately 250 grams of dry pre-weighed silica gel. The water impingers and condensate impingers were submerged in an ice bath through the duration of the testing. The water in the ice bath was also used to circulate around the coil condenser and the XAD-2 resin traps. Exhaust gases were extracted from the sample locations isokinetically using a metering console equipped with a vacuum pump, a calibrated orifice, oil manometer and probe/filter heat controllers. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 9/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 4.6.1 HFPO-DA Sample Train and Equipment Preparation Prior to conducting the field work the following procedures were conducted to prepare the field sampling glassware and sample recovery tools. 1. Wash all glassware, brushes, and ancillary tools with low residue soap and hot water. 2. Rinse all glassware, brushes, and ancillary tools three (3) times with D.I. H20. 3. Bake glassware (with the exception of probe liners) at 450˚C for approximately 2 hours, (XAD-2 resin tube glassware will be cleaned by Eurofins/TestAmerica by this same procedure). 4. Solvent rinse three (3) times all glassware, brushes, and ancillary tools with the following sequence of solvents: acetone, methylene chloride, hexane, and methanol. 5. Clean glassware and tools will be sealed in plastic bags or aluminum foil for transport to the sampling site. 6. Squirt bottles will be new dedicated bottles of known history and dedicated to the D.I. Water and methanol/ammonium hydroxide (MeOH/ 5% NH4OH) solvent contents. Squirt bottles will be labelled with the solvent content it contains. 4.6.2 HFPO-DA Sample Train Recovery Following completion of each test run, the sample probe, nozzle and front-half of the filter holder were brushed and rinsed three times each with the MeOH/ 5% NH4OH solution (Container #1). The glass fiber filter was removed from its housing and transferred to a polyethylene bottle (Container #2). Any particulate matter and filter fibers which adhered to the filter holder and gasket were also placed in Container #2. The XAD-2 resin trap was sealed, labelled and placed in an iced sample cooler. The back-half of the filter holder, coil condenser condensate trap and connecting glassware were rinsed with the same MeOH/ 5% NH4OH solution and placed in Container #3. The volume of water collected in the second and third impingers was measured for moisture determinations and then placed in Container #4. Impingers #2 and #3 were then rinsed with the MeOH/ 5% NH4OH solution and placed in Container #5. The second (breakthrough) XAD-2 resin trap was sealed, labelled and placed in an iced sample cooler. The second condensate trap was rinsed with the MeOH/ 5% NH4OH solution and placed in Container #5. The contents of the fifth impinger were placed in its original container and weighed for moisture determinations. Containers were sealed and labeled with the appropriate sample information. Samples remained chilled until analysis. HFPO-DA analysis was conducted using liquid chromatography/dual mass spectrometry (LC/MS/MS). Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 10/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 5. EMISSIONS TEST RESULTS A detailed summary of the test results is presented in Table 1 in the appendix. Supporting field data and calculations can be found in Appendix C. The laboratory report is presented in Appendix D. A brief discussion of the test results is presented below. Emission Test Results Table 1 presents a detailed summary of the HFPO-DA test results. HFPO-DA concentrations at the carbon bed inlet ranged from 3.95E-01 mg/dscm to 3.72E+00 mg/dscm and averaged 1.54E+00 mg/dscm. Corresponding mass emissions of HFPO-DA ranged from 2.06E-02 lb/hr to 1.83E-01 lb/hr and averaged 7.63E-02 lb/hr. Concentrations of HFPO-DA at the carbon bed outlet ranged from 2.19E-01 mg/dscm to 5.16E-01 mg/dscm and averaged 3.21E-01 mg/dscm. Mass emission rates of HFPO-DA from the carbon bed outlet ranged from 1.20E-02 lb/hr to 2.97E-02 lb/hr and averaged 1.80E-02 lb/hr. The resulting HFPO-DA removal efficiency of the VEN carbon bed averaged 76 percent. A review of Table 1 indicates that HFPO-DA emissions at the carbon bed inlet dropped off significantly during Runs 2 and 3. There were no sampling issues or leak check problems of the sampling trains during any of the test runs. The decreased removal efficiency from the carbon bed during Runs 2 and 3 can be attributed to the lower fugitive emissions during these test runs. Discussion and Conclusion There were no sampling or process operating problems encountered during the field testing that impacted the test results. Therefore, all test data are believed to be representative of actual emissions in evidence during the test program. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 11/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx 6. QUALITY ASSURANCE/QUALITY CONTROL QA/QC was based on the recommended QA/QC procedures of the various sampling and analytical methods that were used for the test program. This section summarizes the pertinent QA/QC procedures that were employed during the emissions testing program. Equipment Calibration An important aspect of pre-sampling preparations is the inspection and calibration of all equipment planned to be used for the field effort. Equipment is inspected for proper operation and durability prior to calibration. Calibration of equipment is conducted in accordance with the procedures outlined in the USEPA document entitled "Quality Assurance Handbook for Air Pollution Measurement Systems; Volume III—Stationary Source Specific Methods" (EPA-600/4- 77-027b). Equipment calibration is performed in accordance with USEPA guidelines and/or manufacturer’s recommendations. Examples of the typical calibration requirements of the field equipment being used are as follows: • Pitot tubes (QA Handbook Section 3.1.2, pp. 1-13) - measured for appropriate spacing and dimensions or calibrate in a wind tunnel. Rejection criteria given on the calibration sheet. Post-test check - inspect for damage. • Probe nozzles (QA Handbook Section 3.4.2, pg. 19) - make three measurements of the nozzle ID (to the nearest 0.001 in.) using different diameters with a micrometer. Difference between the high and low values should not exceed 0.004 in. Post-test check - inspect for damage. • Thermocouples (QA Handbook Section 3.4.2, pp. 15-18) - verify against a mercury-in-glass thermometer at two or more points including the anticipated measurement range. Acceptance limits - impinger ±2°F; DGM ±5.4°F; stack ±1.5 percent of stack temperature. • Dry gas meters (QA Handbook Section 3.4.2, pp. 1-12) - Dry gas meters are calibrated using critical orifices. The procedure entails four runs using four separate critical orifices running at an actual vacuum 1-2 in. greater than the theoretical critical vacuum. The minimum sample volume required per orifice is 5 ft3. Meter boxes are calibrated annually and then verified by use of the alternative USEPA RM 5 post-test calibration procedure. This procedure is referenced as Approved Alternate Method ALT-009 (June 21, 1994) by USEPA’s Emission Measurement Center. The average Y-value obtained by this method must be within 5% of the initial Y-value. Equipment Leak Checks Pitot tube leak checks were conducted in accordance with USEPA RM 2. Leak checks were conducted on the HFPO-DA sample trains prior to and following each test run in accordance with the procedures outlined in USEPA RM 5, Sections 8.4.1 and 8.4.2. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed 12/12 I\\Ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN Final Report.Docx Reagent Blanks and Field Blanks A field blank for the Modified USEPA RM 0010 sample train was collected as part of the test program. The blank train was assembled and set-up near one of the carbon bed outlet test locations and as close to the outlet sample train as possible. The blank train remained in place for the duration of the sampling run. The blank train was heated to the same temperature as used for the outlet sampling train, and the impinger portion of the train was iced down and chilled water circulated through the coil condenser as described in SW-846 Method 0010. The blank train was recovered in the same location, and by the same procedures as the actual sampling trains. Additionally, a proof blank train rinse sample was collected one time during the sampling campaign. The glassware components of the train received a thorough solvent rinse after samples were recovered and put away for a sampling run. This secondary rinse was used to prove that the sampling breakdown collection processes capture all HFPO-DA material, and generally leave none of the target analytes uncaptured on the sample glassware. All sampling train glassware parts, including brushes and other tools used, were thoroughly rinsed with MeOH / 5% NH4OH solution to evaluate the general rinsing efficiency of the sampling train recovery process. Reagent blanks of the diH2O used in the sample trains and MeOH/5% NH4OH solution used for sample recovery were also submitted to the laboratory for analysis along with the field samples. Note that the field blank train and proof blank were collected during sampling of the Vinyl Ethers South carbon bed. Results of the field blank, proof blank and reagent blanks and are included with the laboratory reports in Appendix D. Test Data and Report Review Test data input and emission calculations were double-checked for accuracy. The test results were reviewed by senior personnel for reasonableness and accuracy. The final report was peer reviewed by senior personnel and certified by the project manager. Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed TABLES Table 1 The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Fayetteville, North Carolina Run Identification Run 1 Run 2 Run 3 Average Run 1 Run 2 Run 3 Average Source ID:Carbon Bed Inlet Carbon Bed Outlet Run Date 09Mar21 09Mar21 09Mar21 09Mar21 09Mar21 09Mar21Start/Stop Time 0852-1051 1135-1331 1436-1629 0852-1051 1135-1331 1436-1629 Exhaust Gas Conditions Temperature (deg. F)82 91 95 89 87 97 101 95 Moisture (volume %)1.3 1.0 0.8 1.0 1.1 1.1 0.7 1.0 Oxygen (dry volume %)20.9 20.9 20.9 20.9 20.9 20.9 20.9 20.9 Carbon Dioxide (dry volume %)0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Volumetric Flow Rateacfm 13,491 13,935 14,597 14,008 15,680 14,565 15,725 15,324 dscfm 13,107 13,375 13,927 13,470 15,348 13,996 15,043 14,796 HFPO - Dimer Acid mg/dscm 3.72E+00 5.12E-01 3.95E-01 1.54E+00 5.16E-01 2.28E-01 2.19E-01 3.21E-01 lb/hr 1.83E-01 2.56E-02 2.06E-02 7.63E-02 2.97E-02 1.20E-02 1.23E-02 1.80E-02 Carbon Bed Removal Efficiency percent 84 53 40 76 \\ramashfile01\RAM_Projects\Chemours.1088211\1940100745.Chemours-Fayettevill\Docs\Reports\VEN\VEN_Inlet_030921.xlsx\Summary Table Page 1 of 1 Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed APPENDIX A PROCESS OPERATING DATA Date 3/9/2021 Time Stack Testing VEN Product VEN Precursor VEN Condensation (HFPO) VEN ABR VEN Refining Stripper Column Vent PPVE Burnout 1400 1500 1600 RUN 1: 0852-1051 RUN 2: 1135-1331 RUN 3: 1436-1629 800 900 1000 1100 1200 1300 Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed APPENDIX B SCHEMATICS OF THE TEST LOCATIONS Crossectional Area Showing Velocity Traverse Point Locations Air Flow 67” 61” to Carbon Bed 36” Figure 1 Carbon Bed Inlet Sampling Location Vinyl Ethers North The Chemours Company Fayetteville, North Carolina Sample Traverse Point Locations for Circular Stacks Facility:The Chemours Company Source Identification:VEN Carbon Bed Inlet Stack Diameter:36 inches Sampling Locations: 1.9 diameters downstream 1.7 diameters upstream Minimum Number of Traverse points as specified by EPA Method 1: 24 Number of traverse points sampled: 24 Traverse Point Percent of Stack Diameter Distance in Inches Number From Inside Wall From Inside Wall* 1 2.1 1.0 2 6.7 2.4 3 11.8 4.2 4 17.7 6.4 5 25.0 9.0 6 35.6 12.8 7 64.4 23.2 8 75.0 27.0 9 82.3 29.6 10 88.2 31.8 11 93.3 33.6 12 97.9 35.0 *Traverse points located within 1.00" to the stack wall for stacks having an inside diameter greater than 24" will be relocated as well as traverse points located within 0.50 inches to the stack wall on stacks with a 24" ID or less to meet criteria. C:\Stack\Field Spreadsheets\Method 1\Traverse_new.xlsx Crossectional Area Showing Velocity Traverse Point Locations Air Flow From Carbon Bed 58” 57” 36” Figure 2 Carbon Bed Outlet Sampling Location Vinyl Ethers North The Chemours Company Fayetteville, North Carolina Sample Traverse Point Locations for Circular Stacks Facility:The Chemours Company Source Identification:VEN Carbon Bed Outlet Stack Diameter:36 inches Sampling Locations: 1.6 diameters downstream 1.6 diameters upstream Minimum Number of Traverse points as specified by EPA Method 1: 24 Number of traverse points sampled: 24 Traverse Point Percent of Stack Diameter Distance in Inches Number From Inside Wall From Inside Wall* 1 2.1 1.0 2 6.7 2.4 3 11.8 4.2 4 17.7 6.4 5 25.0 9.0 6 35.6 12.8 7 64.4 23.2 8 75.0 27.0 9 82.3 29.6 10 88.2 31.8 11 93.3 33.6 12 97.9 35.0 *Traverse points located within 1.00" to the stack wall for stacks having an inside diameter greater than 24" will be relocated as well as traverse points located within 0.50 inches to the stack wall on stacks with a 24" ID or less to meet criteria. C:\Stack\Field Spreadsheets\Method 1\Traverse_new.xlsx Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed APPENDIX C FIELD DATA AND CALCULATIONS VEN Carbon Bed Inlet Field Test Data Field Data SummaryThe Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed InletFayetteville, North Carolina Run 1 Run 2 Run 3 Traverse Stack Delta Delta Tm(F)SQRT Stack Delta Delta Tm(F)SQRT Stack Delta Delta Tm(F)SQRT Point Temp(F) P H in out Delta P Temp(F) P H in out Delta P Temp(F) P H in out Delta P A1 74 0.21 0.67 47 45 0.4583 88 0.25 0.80 73 74 0.5000 93 0.25 0.80 80 76 0.50002750.20 0.64 50 46 0.4472 89 0.25 0.80 74 74 0.5000 93 0.25 0.80 80 76 0.50003770.28 0.90 53 47 0.5292 89 0.28 0.90 75 74 0.5292 93 0.25 0.80 81 76 0.50004800.30 0.96 55 48 0.5477 89 0.29 0.93 76 74 0.5385 93 0.30 0.96 81 78 0.54775810.31 0.99 57 49 0.5568 89 0.29 0.93 76 74 0.5385 94 0.30 0.96 81 78 0.54776810.32 1.02 59 50 0.5657 89 0.29 0.93 76 73 0.5385 95 0.34 1.09 81 78 0.58317810.36 1.15 60 51 0.6000 89 0.31 0.99 76 74 0.5568 95 0.38 1.22 81 78 0.61648820.40 1.28 63 56 0.6325 89 0.31 0.99 77 73 0.5568 95 0.35 1.12 81 77 0.59169820.41 1.31 63 56 0.6403 90 0.35 1.12 77 73 0.5916 95 0.38 1.22 80 77 0.616410820.41 1.31 66 56 0.6403 90 0.35 1.12 77 74 0.5916 95 0.40 1.28 80 77 0.6325 11 82 0.42 1.34 68 58 0.6481 90 0.39 1.25 78 74 0.6245 95 0.40 1.28 80 76 0.632512820.42 1.34 70 59 0.6481 90 0.39 1.25 78 74 0.6245 95 0.40 1.28 80 76 0.6325B1840.32 1.02 73 69 0.5657 91 0.34 1.09 76 76 0.5831 96 0.44 1.41 76 75 0.66332840.32 1.02 74 70 0.5657 91 0.34 1.09 77 76 0.5831 95 0.42 1.34 78 75 0.64813840.34 1.09 77 71 0.5831 91 0.37 1.18 79 76 0.6083 96 0.42 1.34 79 75 0.64814850.34 1.09 78 72 0.5831 92 0.40 1.28 79 76 0.6325 95 0.42 1.34 80 75 0.64815850.34 1.09 80 73 0.5831 92 0.42 1.34 80 77 0.6481 96 0.43 1.38 80 75 0.65576850.32 1.02 81 75 0.5657 92 0.42 1.34 81 77 0.6481 96 0.43 1.38 80 75 0.65577850.28 0.90 82 76 0.5292 92 0.33 1.06 81 77 0.5745 96 0.43 1.38 80 75 0.65578850.28 0.90 82 78 0.5292 92 0.30 0.96 82 78 0.5477 96 0.35 1.12 81 75 0.5916 9 85 0.25 0.80 83 78 0.5000 92 0.32 1.02 82 78 0.5657 95 0.35 1.12 81 75 0.591610860.25 0.80 82 78 0.5000 92 0.34 1.09 82 78 0.5831 95 0.35 1.12 81 75 0.591611860.26 0.83 82 78 0.5099 92 0.32 1.02 82 78 0.5657 95 0.33 1.05 81 75 0.574512860.27 0.86 81 79 0.5196 92 0.32 1.02 83 79 0.5657 96 0.33 1.05 81 75 0.57450.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.0000Average820.32 1.01 69 63 0.5603 91 0.33 1.06 78 75 0.5748 95 0.36 1.16 80 76 0.6000 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Inlet_030921.xlsx\TestData.xls Test Data Summary and Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed InletFayetteville, North Carolina Parameter Run 1 Run 2 Run 3 Run Date 3/9/21 3/9/21 3/9/21Start/Stop Time 0852-1051 1135-1331 1436-1629 Duration of Run, Minutes 96 96 96 Ave. Nozzle Diameter, inches 0.243 0.243 0.243Pitot Calibration Factor, CF 0.84 0.84 0.84Meter Gamma 1.002 1.002 1.002 Meter Delta H, inches of H2O 1.6 1.6 1.6Stack Diameter, inches 36 36 36Rectangular Width, inches 0 0 0 Rectangular Length, inches 0 0 0 Stack Area, sq.ft.7.07 7.07 7.07Barometric Pressure, inches of Hg 30.5 30.5 30.5Static Pressure, inches of H2O -3.5 -3.5 -3.5 Dry Gas Meter Sample Volume, (VM)ft3Initial 927.572 985.086 44.759Final984.948 1042.671 105.524 Total Volume 57.188 57.444 60.55 Ave. Stack Temperature, Ts(F)82.5 90.5 94.9Ave. Meter Temperature, Tm(F)66.3 76.8 78.1Ave. Run Delta H, inches of H2O 1.01 1.06 1.16 Ave. Square Root of Delta P 0.5603 0.5748 0.6000 Moisture Data Volume of water collected, mls 4.8 1.2 0.4 Silica Gel, grams 11 11.2 10 Total Collected, mls 15.8 12.4 10.4 ORSAT Data %O2 20.90 20.90 20.90%CO2 0.0 0.0 0.0 %CO Calculations Vw(std), scf =0.744 0.584 0.490Vm(std), dscf =58.741 57.857 60.860Bws=0.013 0.010 0.008 Md=28.84 28.84 28.84Ms=28.70 28.73 28.75Vs, ft/sec =31.8 32.9 34.4 Qs, acfm =13,491 13,935 14,597 Qs(std), dscfm =13,107 13,375 13,927Isokinetic Sampling Rate, %102.5 98.9 99.9 Where: An = area of the nozzleAs = area of the stackVw(std) = volume of water vapor in gas, standard conditions = 0.04707*Vlc Vm(std) = vol. of gas sampled, standard conditions = 17.647 x Vm x gamma x [Pb + (dH/13.6)]/Tm(R)Bws = water vapor in gas stream, proportion by volume = Vw(std)/(Vm(std) + Vw(std))Md = molecular weight of stack gas, dry basis = (0.44 x%CO2) + (0.32 x%O2) + [0.28 x (%N2 + %CO)] Ms = molecular weight of stack gas, wet basis = [Md x (1-Bws)] + (18.0 x Bws) Vs = stack gas velocity = 85.49 x Cp x (avg. Sq.Rt. dP) x [Sq.Rt. (Ts(R))/(Ms x Ps)]Qs = stack gas flow rate = Vs x As x 60Qs(std) = stack gas flow rate, standard conditions = Qs x (1-Bws) x (528/(Ts(R)) x (Ps/29.92) Isokinetic sampling rate = {(Ts(R)) x [(0.00267 x Vlc) + (Vm(std)/17.647)] x 100}/(Time x vs x Ps x An x60) C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Inlet_030921.xlsx\Summary Data.xls Results SummaryThe Chemours Company - Fayetteville WorksVinyl Ethers North Carbon Bed InletFayetteville, North Carolina Parameter:Run 1 Run 2 Run 3 Average Mol. Wt. mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr HFPO - Dimer Acid 330 6.19125 3.72E+00 2.71E-01 1.83E-01 0.83829 5.12E-01 3.73E-02 2.56E-02 0.68042 3.95E-01 2.88E-02 2.06E-02 2.57 1.54E+00 1.12E-01 7.63E-02 Where:Pollutant Emission Concentration:mg= total sample collected, milligramsmg/dscm = milligrams of pollutant per dry standard cubic meter sampled = (mg/dscf ) x (35.314 cubic feet/cubic meter) ppm = parts per million =((mg/dscm x 24.04 liters/mol)/mol.wt)) Pollutant Emission Rate:lb/hr = pounds of pollutant emitted per hour = mg/1000/[(453.59 g/lb)/(dscf)] x dscfm x 60 min/hr C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Inlet_030921.xlsx\Other Lab Results.xls Example Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Inlet Fayetteville, North Carolina Note: Values are shown for example purposes only. Vm,a =Dry gas volume at actual conditions (acf) Initial gas meter volume: Final gas meter volume: Difference: Vm,std =Volume of dry gas at standard conditions (dscf) =17.647x Vm, a x Gamma*[Pbar+(DeltaH/13.6)]/Tm(R)=17.647 x 0.000 x 1.002 x (30.50 + [ (1.600 /13.6)]/526 =58.741 Vl,c =Volume of water collected in impingers and silica gel (ml) impinger catch (mls):5 silica gel (g)11.0 total:15.8 Vw,std =Volume of water vapor in gas at standard conditions (cu.ft.) =(0.04707) x (Vl,c) =0.04707 x 15.8 =0.744 Bwo =Proportion by volume of water vapor in gas stream =Vw,std/(Vw,std+Vm,std) =0.74 / (0.74 +58.741 ) =0.013 Ps =Stack gas static pressure (in. Hg) =St/13.6 =-3.50 / 13.6=-0.257 Pa =Absolute stack gas pressure (in. Hg) =Ps+Pbar =-0.257 +30.50 =30.24 MFD =Dry mole fraction of stack gas =1-Bwo =1 - =0.987 Md =Dry molecular weight of stack gas (lb/lb-mol) =(0.32 x %O2) + (0.44 x %CO2) + (0.28 x %N2) =(0.32 x 20.90 )+(0.44 x 0.00 ) +(0.28 x 79.10 ) =28.84 Mw =Wet molecular weight of stack gas (lb/lb-mol) =(Md) x (MFD) + (0.18) x (Bwo*100) =28.84 x 0.987 + 0.18 x 1.25024 =28.70 0.013 927.572984.948 57.376 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Inlet_030921.xlsx\Example Page 5 of 6 Example Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Inlet Fayetteville, North Carolina Note: Values are shown for example purposes only. Vs,avg =Average stack gas velocity (fps) =Kp x (Cp) x (sqrt,deltaP) x sqrt((Ts + 460°R)/Mw*Pa)) =85.48 x 0.84 x 0.56 x sqrt (0.62 ) =31.8 A Cross sectional areas of stack (sq. ft) =pi/4*d^2=3.00 ^2 =7.07 Qa Volumetric flow rate at actual conditions (acfm) =(60)sec/min(A)(Vs, avg) =60 x 7.0686 x 31.81 =13,490 Qstd Volumetric flow rate at standard conditions (scfm) =Qa x (528/Ts,avg + 460) x Pa/29.92 =13,490 x (528 /542 ) x 1.011 =13,272 Qstd,dry Volumetric flow rate at dry standard conditions per minute(dscfm) =Qstd x (1-Bwo) =13,272 x 0.9875 =13,106 mg/dscm HFPO-DA concentration =(mg/dscf) x 35.314 cu. ft./cu. meter = (6.19 /58.74 ) x35.314 =3.72E+00 lb/hr HFPO-DA Mass Emission Rate =mg/1000/[(453.59 g/lb)/(dscf)] x dscfm x 60 min/hr =6.19 /1,000 /[(453.59 ) / (58.74 )] x 13,107 x 60 =1.83E-01 3.14159/4 x C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Inlet_030921.xlsx\Example Page 6 of 6 DOCUMENT TITLE Sample Train Recovery Data Sheet Client The Chemours Co.Location Fayetteville, NC Source VEN Inlet Method Modified 0010 Date 3/9/2021 Run #1 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 852 Impinger #8 Run End Time 1051 Total Gain ml/gm Recovery Technician PG Run #2 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 1135 Impinger #8 Run End Time 1331 Total Gain ml/gm Recovery Technician PG Run #3 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 1436 Impinger #8 Run End Time 1629 Total Gain ml/gm Recovery Technician PG 755.2 1.2 0.0 Final ml or gm Initial ml or gm Net Gain 446.8 446.0 0.8 769.4 769.4 0.0 740.6 739.2 1.4 500.4 499.0 1.4 856.4 845.4 11.0 756.4 0.0 15.8 Final ml or gm Initial ml or gm Net Gain 492.0 491.8 0.2 788.8 790.0 -1.2 785.8 786.0 -0.2 682.6 681.8 0.8 516.6 515.0 1.6 854.2 843.0 11.2 0.0 0.0 12.4 Final ml or gm Initial ml or gm Net Gain 449.0 448.2 0.8 772.0 774.2 -2.2 749.4 750.2 -0.8 760.0 759.6 0.4 502.8 500.6 2.2 866.2 856.2 10.0 10.4 0.0 0.0 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\App C\VEN_Inlet_Moisture.xls\VEN_Inlet_Moisture.xls VEN Carbon Bed Outlet Field Test Data Table 1 The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Fayetteville, North Carolina Run Identification Run 1 Run 2 Run 3 Average Source ID:Carbon Bed Inlet Run Date 09Mar21 09Mar21 09Mar21 Start/Stop Time 0852-1051 1135-1331 1436-1629 Exhaust Gas Conditions Temperature (deg. F)87 97 101 95 Moisture (volume %)1.1 1.1 0.7 1.0 Oxygen (dry volume %)20.9 20.9 20.9 20.9 Carbon Dioxide (dry volume %)0.0 0.0 0.0 0.0 Volumetric Flow Rate acfm 15,680 14,565 15,725 15,324 dscfm 15,348 13,996 15,043 14,796 HFPO - Dimer Acid mg/dscm 5.16E-01 2.28E-01 2.19E-01 3.21E-01 lb/hr 2.97E-02 1.20E-02 1.23E-02 1.80E-02 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\Summary Table Field Data SummaryThe Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed OutletFayetteville, North Carolina Run 1 Run 2 Run 3 Traverse Stack Delta Delta Tm(F)SQRT Stack Delta Delta Tm(F)SQRT Stack Delta Delta Tm(F)SQRT Point Temp(F) P H in out Delta P Temp(F) P H in out Delta P Temp(F) P H in out Delta P A1 83 0.42 1.60 49 47 0.6481 95 0.21 0.78 67 68 0.4583 100 0.16 0.61 82 83 0.40002840.42 1.60 50 48 0.6481 95 0.21 0.78 68 67 0.4583 101 0.21 0.80 82 83 0.45833830.22 0.84 53 49 0.4690 95 0.22 0.83 69 67 0.4690 101 0.23 0.87 83 83 0.47964840.24 0.91 56 50 0.4899 96 0.25 0.95 71 67 0.5000 101 0.24 0.91 84 82 0.48995840.29 1.10 57 51 0.5385 96 0.25 0.95 72 67 0.5000 101 0.28 1.06 84 82 0.52926850.32 1.22 59 53 0.5657 96 0.30 1.14 72 67 0.5477 101 0.32 1.22 84 82 0.56577850.41 1.56 57 54 0.6403 93 0.33 1.25 73 67 0.5745 101 0.34 1.29 84 81 0.58318850.40 1.52 63 55 0.6325 96 0.35 1.33 73 67 0.5916 101 0.41 1.56 84 80 0.64039850.42 1.60 64 56 0.6481 96 0.37 1.41 74 67 0.6083 101 0.41 1.56 83 80 0.640310860.42 1.60 63 58 0.6481 96 0.37 1.41 74 67 0.6083 101 0.41 1.56 83 79 0.6403 11 86 0.42 1.60 67 59 0.6481 97 0.37 1.41 74 68 0.6083 101 0.41 1.56 83 79 0.640312860.42 1.60 68 60 0.6481 97 0.37 1.41 75 68 0.6083 101 0.41 1.56 83 79 0.6403B1880.60 2.28 70 66 0.7746 97 0.31 1.18 73 70 0.5568 102 0.38 1.33 78 77 0.61642880.60 2.28 70 66 0.7746 98 0.31 1.18 73 70 0.5568 102 0.38 1.33 80 77 0.61643880.55 2.09 73 67 0.7416 98 0.31 1.18 75 71 0.5568 101 0.40 1.52 81 77 0.63254890.68 2.58 75 68 0.8246 98 0.31 1.18 76 71 0.5568 101 0.41 1.56 80 77 0.64035890.65 2.47 76 68 0.8062 98 0.36 1.37 77 72 0.6000 101 0.58 2.20 83 78 0.76166890.65 2.47 77 70 0.8062 98 0.55 2.09 77 71 0.7416 101 0.65 2.47 81 77 0.80627890.59 2.24 77 70 0.7681 98 0.60 2.28 80 73 0.7746 101 0.67 2.55 82 78 0.81858900.42 1.60 78 71 0.6481 98 0.62 2.36 79 72 0.7874 102 0.67 2.55 85 78 0.8185 9 90 0.39 1.42 78 71 0.6245 98 0.62 2.36 83 75 0.7874 102 0.60 2.28 84 78 0.774610900.33 1.25 78 72 0.5745 98 0.49 1.87 84 75 0.7000 102 0.62 2.36 84 78 0.787411900.31 1.18 77 72 0.5568 98 0.41 1.56 85 76 0.6403 101 0.60 2.36 85 78 0.774612900.31 1.18 77 72 0.5568 98 0.41 1.56 86 77 0.6403 102 0.60 2.36 84 78 0.77460.0000 85 77 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.00000.0000 0.0000 0.0000Average870.44 1.66 67 61 0.6534 97 0.37 1.41 76 70 0.6013 101 0.43 1.64 83 79 0.6470 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\TestData.xls Test Data Summary and Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed OutletFayetteville, North Carolina Parameter Run 1 Run 2 Run 3 Run Date 3/9/21 3/9/21 3/9/21Start/Stop Time 0852-1051 1135-1331 1436-1629 Duration of Run, Minutes 96 96 96 Ave. Nozzle Diameter, inches 0.243 0.243 0.243Pitot Calibration Factor, CF 0.84 0.84 0.84Meter Gamma 0.991 0.991 0.991 Meter Delta H, inches of H2O 1.88 1.88 1.88Stack Diameter, inches 36 36 36Rectangular Width, inches 0 0 0 Rectangular Length, inches 0 0 0 Stack Area, sq.ft.7.07 7.07 7.07Barometric Pressure, inches of Hg 30.5 30.5 30.5Static Pressure, inches of H2O 2.3 2 2 Dry Gas Meter Sample Volume, (VM)ft3Initial 967.426 33.042 95.279Final1032.812 94.939 161.098 Total Volume 65.386 61.599 65.68 Ave. Stack Temperature, Ts(F)86.9 96.8 101.2Ave. Meter Temperature, Tm(F)64.3 73.0 81.0Ave. Run Delta H, inches of H2O 1.66 1.41 1.64 Ave. Square Root of Delta P 0.6534 0.6013 0.6470 Moisture Data Volume of water collected, mls 3.6 1.8 -1.6 Silica Gel, grams 12 12.4 11.8 Total Collected, mls 15.6 14.2 10.2 ORSAT Data %O2 20.90 20.90 20.90%CO2 0.0 0.0 0.0 %CO Calculations Vw(std), scf =0.734 0.668 0.480Vm(std), dscf =66.789 61.849 65.007Bws=0.011 0.011 0.007 Md=28.84 28.84 28.84Ms=28.72 28.72 28.76Vs, ft/sec =37.0 34.3 37.1 Qs, acfm =15,680 14,565 15,725 Qs(std), dscfm =15,348 13,996 15,043Isokinetic Sampling Rate, %99.5 101.0 98.8 Where: An = area of the nozzleAs = area of the stackVw(std) = volume of water vapor in gas, standard conditions = 0.04707*Vlc Vm(std) = vol. of gas sampled, standard conditions = 17.647 x Vm x gamma x [Pb + (dH/13.6)]/Tm(R)Bws = water vapor in gas stream, proportion by volume = Vw(std)/(Vm(std) + Vw(std))Md = molecular weight of stack gas, dry basis = (0.44 x%CO2) + (0.32 x%O2) + [0.28 x (%N2 + %CO)] Ms = molecular weight of stack gas, wet basis = [Md x (1-Bws)] + (18.0 x Bws) Vs = stack gas velocity = 85.49 x Cp x (avg. Sq.Rt. dP) x [Sq.Rt. (Ts(R))/(Ms x Ps)]Qs = stack gas flow rate = Vs x As x 60Qs(std) = stack gas flow rate, standard conditions = Qs x (1-Bws) x (528/(Ts(R)) x (Ps/29.92) Isokinetic sampling rate = {(Ts(R)) x [(0.00267 x Vlc) + (Vm(std)/17.647)] x 100}/(Time x vs x Ps x An x60) C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\Summary Data.xls Results SummaryThe Chemours Company - Fayetteville WorksVinyl Ethers North Carbon Bed OutletFayetteville, North Carolina Parameter:Run 1 Run 2 Run 3 Average Mol. Wt. mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr mg mg/dscm ppm lb/hr HFPO - Dimer Acid 330 0.97633 5.16E-01 3.76E-02 2.97E-02 0.39931 2.28E-01 1.66E-02 1.20E-02 0.40345 2.19E-01 1.60E-02 1.23E-02 0.59 3.21E-01 2.34E-02 1.80E-02 Where:Pollutant Emission Concentration:mg= total sample collected, milligramsmg/dscm = milligrams of pollutant per dry standard cubic meter sampled = (mg/dscf ) x (35.314 cubic feet/cubic meter) ppm = parts per million =((mg/dscm x 24.04 liters/mol)/mol.wt)) Pollutant Emission Rate:lb/hr = pounds of pollutant emitted per hour = mg/1000/[(453.59 g/lb)/(dscf)] x dscfm x 60 min/hr C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\Other Lab Results.xls Example Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Outlet Fayetteville, North Carolina Note: Values are shown for example purposes only. Vm,a =Dry gas volume at actual conditions (acf) Initial gas meter volume: Final gas meter volume: Difference: Vm,std =Volume of dry gas at standard conditions (dscf) =17.647x Vm, a x Gamma*[Pbar+(DeltaH/13.6)]/Tm(R)=17.647 x 0.000 x 0.991 x (30.50 + [ (1.880 /13.6)]/524 =66.789 Vl,c =Volume of water collected in impingers and silica gel (ml) impinger catch (mls):4 silica gel (g)12.0 total:15.6 Vw,std =Volume of water vapor in gas at standard conditions (cu.ft.) =(0.04707) x (Vl,c) =0.04707 x 15.6 =0.734 Bwo =Proportion by volume of water vapor in gas stream =Vw,std/(Vw,std+Vm,std) =0.73 / (0.73 +66.789 ) =0.011 Ps =Stack gas static pressure (in. Hg) =St/13.6 =2.30 / 13.6=0.169 Pa =Absolute stack gas pressure (in. Hg) =Ps+Pbar =0.169 +30.50 =30.67 MFD =Dry mole fraction of stack gas =1-Bwo =1 - =0.989 Md =Dry molecular weight of stack gas (lb/lb-mol) =(0.32 x %O2) + (0.44 x %CO2) + (0.28 x %N2) =(0.32 x 20.90 )+(0.44 x 0.00 ) +(0.28 x 79.10 ) =28.84 Mw =Wet molecular weight of stack gas (lb/lb-mol) =(Md) x (MFD) + (0.18) x (Bwo*100) =28.84 x 0.989 + 0.18 x 1.08747 =28.72 0.011 967.4261032.812 65.386 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\Example Page 5 of 6 Example Calculations The Chemours Company - Fayetteville Works Vinyl Ethers North Carbon Bed Outlet Fayetteville, North Carolina Note: Values are shown for example purposes only. Vs,avg =Average stack gas velocity (fps) =Kp x (Cp) x (sqrt,deltaP) x sqrt((Ts + 460°R)/Mw*Pa)) =85.48 x 0.84 x 0.65 x sqrt (0.62 ) =37.0 A Cross sectional areas of stack (sq. ft) =pi/4*d^2=3.00 ^2 =7.07 Qa Volumetric flow rate at actual conditions (acfm) =(60)sec/min(A)(Vs, avg) =60 x 7.0686 x 36.97 =15,679 Qstd Volumetric flow rate at standard conditions (scfm) =Qa x (528/Ts,avg + 460) x Pa/29.92 =15,679 x (528 /547 ) x 1.025 =15,516 Qstd,dry Volumetric flow rate at dry standard conditions per minute(dscfm) =Qstd x (1-Bwo) =15,516 x 0.9891 =15,347 mg/dscm HFPO-DA concentration =(mg/dscf) x 35.314 cu. ft./cu. meter = (0.98 /66.79 ) x35.314 =5.16E-01 lb/hr HFPO-DA Mass Emission Rate =mg/1000/[(453.59 g/lb)/(dscf)] x dscfm x 60 min/hr =0.98 /1,000 /[(453.59 ) / (66.79 )] x 15,348 x 60 =2.97E-02 3.14159/4 x C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\VEN_Outlet_030921.xlsx\Example Page 6 of 6 DOCUMENT TITLE Sample Train Recovery Data Sheet Client The Chemours Co.Location Fayetteville, NC Source VEN Outlet Method Modified 0010 Date 3/9/2021 Run #1 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 852 Impinger #8 Run End Time 1051 Total Gain ml/gm Recovery Technician PG Run #2 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 1135 Impinger #8 Run End Time 1331 Total Gain ml/gm Recovery Technician PG Run #3 Filter #1 Impinger #1 Impinger #2 Filter #2 Impinger #3 Impinger #4 Filter #3 Impinger #5 Impinger #6 Impinger #7 Run Start Time 1436 Impinger #8 Run End Time 1629 Total Gain ml/gm Recovery Technician PG 778.2 0.6 0.0 Final ml or gm Initial ml or gm Net Gain 467.4 466.6 0.8 740.4 740.2 0.2 785.2 784.8 0.4 530.4 528.8 1.6 857.4 845.4 12.0 778.8 0.0 15.6 Final ml or gm Initial ml or gm Net Gain 490.8 490.0 0.8 807.6 809.2 -1.6 811.2 811.4 -0.2 775.8 774.8 1.0 509.8 508.0 1.8 863.8 851.4 12.4 0.0 0.0 14.2 Final ml or gm Initial ml or gm Net Gain 466.8 467.2 -0.4 727.4 730.4 -3.0 780.6 781.4 -0.8 782.4 781.6 0.8 532.0 530.2 1.8 869.4 857.6 11.8 10.2 0.0 0.0 C:\Stack\Projects\Chemours\Fayetteville\March 2021\VEN Report\App C\VEN_Outlet_Moisture.xls\VEN_Outlet_Moisture.xls Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed APPENDIX D LABORATORY DATA VEN Carbon Bed Inlet Laboratory Data ANALYTICAL REPORT Eurofins TestAmerica, Knoxville 5815 Middlebrook Pike Knoxville, TN 37921 Tel: (865)291-3000 Laboratory Job ID: 140-22280-1 Client Project/Site: VEN Carbon Bed Inlet For: The Chemours Company FC, LLC c/o AECOM Sabre Building, Suite 300 4051 Ogletown Road Newark, Delaware 19713 Attn: Michael Aucoin Authorized for release by: 3/31/2021 9:52:59 AM Courtney Adkins, Project Manager II (865)291-3019 courtney.adkins@eurofinset.com The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Laboratory Job ID: 140-22280-1 Page 2 of 25 Eurofins TestAmerica, Knoxville3/31/2021 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Default Detection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Qualifiers LCMS Qualifier Description *+LCS and/or LCSD is outside acceptance limits, high biased. Qualifier *1 LCS/LCSD RPD exceeds control limits. B Compound was found in the blank and sample. Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins TestAmerica, Knoxville Page 3 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Job ID: 140-22280-1 Laboratory: Eurofins TestAmerica, Knoxville Narrative Job Narrative 140-22280-1 Sample Receipt The samples were received on March 13, 2021 at 10:40 AM. The temperature of the cooler at receipt was 0.6º C. LCMS LC/MS/MS Sampling Train Preparation and Analysis: The sampling train components are extracted and analyzed for Per- and Polyfluorinated Alkyl Substances (PFAS) using Eurofins TestAmerica Knoxville standard operating procedures KNOX-OP-0026 and KNOX-LC-0007. The sampling trains are prepared as four analytical fractions: The particulate filter and front half of the filter holder, nozzle and probe solvent rinses are combined for one analytical fraction. The XAD-2 resin trap and back half of the filter holder, coil condenser and connecting glassware solvent rinses are also combined as a separate analytical fraction. The condensate, impinger contents and their related glassware DI water rinses make up the third analytical fraction. The breakthrough XAD module makes up the fourth analytical fraction. The filters and XAD components are spiked with isotope dilution internal standards and the components are extracted with methanol/ammonium hydroxide by shaking for at least 18 hours. The extracts are concentrated to 10 mL and analyzed by HPLC/MS/MS. The condensates are spiked with the isotope dilution internal standards and extracted using either Solid-Phase Extraction (SPE) or diluting the water sample for analysis. Each extract at its final volume is 80:20 methanol:water Sample results were calculated using the following equation: Result, ηg/sample = (on-column concentration, ηg/mL) × (nominal final volume of extract (10 mL) / 1 sample) × DF × SF Where: DF = Instrument dilution factor SF = Extraction Split Factor = (final volume of extract in the initial extraction batch / initial volume of extract in the “Split” batch) For condensate, if less than the entire sample is extracted, the fraction of sample used replaces “1 sample” Method 537 (modified): The method blank for preparation batch 140-47849 and 140-47874 contained HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. Method 537 (modified): The Isotope Dilution Analyte (IDA) recovery associated with the following samples is below the method recommended limit: (LCS 140-47734/2-B), (LCSD 140-47734/3-B) and (MB 140-47734/1-B). Generally, data quality is not considered affected if the IDA signal-to-noise ratio is greater than 10:1. Method 537 (modified): The method blank for preparation batch 140-47757 and 140-47785 contained HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. Method 537 (modified): The laboratory control sample (LCS) and / or laboratory control sample duplicate (LCSD) for preparation batch 140-47734 and 140-47812 and analytical batch 140-48219 recovered outside control limits for the following analyte: HFPO-DA. This analyte was biased high in the LCS/LCSD. The samples were consumed during the extraction process and therefore, the data have been reported. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins TestAmerica, KnoxvillePage 4 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Lab Sample ID: 140-22280-1Client Sample ID: D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 391 B 4.96 2.87 ug/Sample 03/15/21 14:51 03/27/21 20:10 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 92 25-150 03/15/21 14:51 03/27/21 20:10 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-2Client Sample ID: D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 5800 *+ *1 80.0 70.0 ug/Sample 03/15/21 06:58 03/28/21 10:54 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 106 25-150 03/15/21 06:58 03/28/21 10:54 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-3Client Sample ID: D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.244 B 0.0862 0.0142 ug/Sample 03/17/21 15:12 03/27/21 11:01 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 107 25-150 03/17/21 15:12 03/27/21 11:01 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-4Client Sample ID: D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.0108 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 23:16 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 86 25-150 03/15/21 06:58 03/27/21 23:16 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 5 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Lab Sample ID: 140-22280-5Client Sample ID: D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 205 B 1.99 1.15 ug/Sample 03/15/21 14:51 03/27/21 20:18 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 100 25-150 03/15/21 14:51 03/27/21 20:18 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-6Client Sample ID: D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 633 *+ *1 16.0 14.0 ug/Sample 03/15/21 06:58 03/27/21 23:25 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 112 25-150 03/15/21 06:58 03/27/21 23:25 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-7Client Sample ID: D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.273 B 0.0965 0.0159 ug/Sample 03/17/21 15:12 03/27/21 11:09 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 106 25-150 03/17/21 15:12 03/27/21 11:09 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-8Client Sample ID: D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.0138 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 23:33 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 89 25-150 03/15/21 06:58 03/27/21 23:33 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 6 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Lab Sample ID: 140-22280-9Client Sample ID: D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 107 B 1.00 0.580 ug/Sample 03/15/21 14:51 03/27/21 20:27 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 111 25-150 03/15/21 14:51 03/27/21 20:27 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-10Client Sample ID: D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 573 *+ *1 16.0 14.0 ug/Sample 03/15/21 06:58 03/27/21 23:51 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 105 25-150 03/15/21 06:58 03/27/21 23:51 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-11Client Sample ID: D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.409 B 0.0911 0.0150 ug/Sample 03/17/21 15:12 03/27/21 11:36 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 104 25-150 03/17/21 15:12 03/27/21 11:36 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22280-12Client Sample ID: D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.0120 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/28/21 00:00 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 58 25-150 03/15/21 06:58 03/28/21 00:00 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 7 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Method: 537 (modified) - Fluorinated Alkyl Substances Prep: None 0.00100HFPO-DA ug/Sample Analyte UnitsMDLRL 0.000580 0.00160HFPO-DA ug/Sample0.00140 0.00200HFPO-DA ug/Sample0.000330 Eurofins TestAmerica, Knoxville Page 8 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Isotope Dilution Summary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Method: 537 (modified) - Fluorinated Alkyl Substances Prep Type: Total/NAMatrix: Air Lab Sample ID Client Sample ID (25-150) HFPODA 92140-22280-1 Percent Isotope Dilution Recovery (Acceptance Limits) D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FH 106140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BH 107140-22280-3 D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 COND 86140-22280-4 D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 100140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FH 112140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BH 106140-22280-7 D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 COND 89140-22280-8 D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 111140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FH 105140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BH 104140-22280-11 D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 COND 58140-22280-12 D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 43LCS 140-47734/2-B Lab Control Sample 88LCS 140-47757/2-B Lab Control Sample 109LCS 140-47849/2-B Lab Control Sample 33LCSD 140-47734/3-B Lab Control Sample Dup 95LCSD 140-47757/3-B Lab Control Sample Dup 108LCSD 140-47849/3-B Lab Control Sample Dup 64MB 140-47734/14-B Method Blank 45MB 140-47734/1-B Method Blank 92MB 140-47757/1-B Method Blank 101MB 140-47849/1-B Method Blank Surrogate Legend HFPODA = 13C3 HFPO-DA Eurofins TestAmerica, Knoxville Page 9 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Method: 537 (modified) - Fluorinated Alkyl Substances Client Sample ID: Method BlankLab Sample ID: MB 140-47734/14-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 23:42 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 64 25-150 03/27/21 23:42 1 MB MB Isotope Dilution 03/15/21 06:58 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47734/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 21:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 45 25-150 03/27/21 21:20 1 MB MB Isotope Dilution 03/15/21 06:58 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47734/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 PFOA 0.0200 0.02027 ug/Sample 101 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits HFPO-DA 0.0200 0.02128 ug/Sample 106 60-140 13C3 HFPO-DA 25 -150 Isotope Dilution 43 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47734/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 PFOA 0.0200 0.02152 ug/Sample 108 60-140 6 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD HFPO-DA 0.0200 0.03810 *+ *1 ug/Sample 190 60-140 57 30 13C3 HFPO-DA 25 -150 Isotope Dilution 33 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47757/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 RL MDL HFPO-DA 0.003180 0.00100 0.000580 ug/Sample 03/15/21 14:51 03/27/21 19:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 92 25-150 03/27/21 19:08 1 MB MB Isotope Dilution 03/15/21 14:51 Dil FacPrepared AnalyzedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 10 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Method: 537 (modified) - Fluorinated Alkyl Substances (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47757/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 PFOA 0.0200 0.01985 ug/Sample 99 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits HFPO-DA 0.0200 0.02453 ug/Sample 123 60-140 13C3 HFPO-DA 25 -150 Isotope Dilution 88 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47757/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 PFOA 0.0200 0.01976 ug/Sample 99 60-140 0 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD HFPO-DA 0.0200 0.02526 ug/Sample 126 60-140 3 30 13C3 HFPO-DA 25 -150 Isotope Dilution 95 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47849/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 RL MDL HFPO-DA 0.001638 0.000500 0.0000825 ug/Sample 03/17/21 15:12 03/27/21 10:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 101 25-150 03/27/21 10:08 1 MB MB Isotope Dilution 03/17/21 15:12 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47849/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 HFPO-DA 0.0100 0.01169 ug/Sample 117 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 109 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47849/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 HFPO-DA 0.0100 0.01195 ug/Sample 119 60-140 2 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 108 LCSD LCSD Qualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 11 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet LCMS Prep Batch: 47734 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BHTotal/NA Air None140-22280-4 D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air None140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BHTotal/NA Air None140-22280-8 D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air None140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BHTotal/NA Air None140-22280-12 D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air NoneMB 140-47734/14-B Method Blank Total/NA Air NoneMB 140-47734/1-B Method Blank Total/NA Air NoneLCS 140-47734/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47734/3-B Lab Control Sample Dup Total/NA Prep Batch: 47757 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22280-1 D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FHTotal/NA Air None140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FHTotal/NA Air None140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FHTotal/NA Air NoneMB 140-47757/1-B Method Blank Total/NA Air NoneLCS 140-47757/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47757/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 47785 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47757140-22280-1 D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FHTotal/NA Air Split 47757140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FHTotal/NA Air Split 47757140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FHTotal/NA Air Split 47757MB 140-47757/1-B Method Blank Total/NA Air Split 47757LCS 140-47757/2-B Lab Control Sample Total/NA Air Split 47757LCSD 140-47757/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 47812 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47734140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BHTotal/NA Air Split 47734140-22280-4 D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BHTotal/NA Air Split 47734140-22280-8 D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BHTotal/NA Air Split 47734140-22280-12 D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734MB 140-47734/14-B Method Blank Total/NA Air Split 47734MB 140-47734/1-B Method Blank Total/NA Air Split 47734LCS 140-47734/2-B Lab Control Sample Total/NA Air Split 47734LCSD 140-47734/3-B Lab Control Sample Dup Total/NA Prep Batch: 47849 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22280-3 D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air None140-22280-7 D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air None140-22280-11 D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air NoneMB 140-47849/1-B Method Blank Total/NA Air NoneLCS 140-47849/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47849/3-B Lab Control Sample Dup Total/NA Eurofins TestAmerica, Knoxville Page 12 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet LCMS Cleanup Batch: 47874 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47849140-22280-3 D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849140-22280-7 D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849140-22280-11 D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849MB 140-47849/1-B Method Blank Total/NA Air Split 47849LCS 140-47849/2-B Lab Control Sample Total/NA Air Split 47849LCSD 140-47849/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48210 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)47874140-22280-3 D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874140-22280-7 D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874140-22280-11 D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874MB 140-47849/1-B Method Blank Total/NA Air 537 (modified)47874LCS 140-47849/2-B Lab Control Sample Total/NA Air 537 (modified)47874LCSD 140-47849/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 48218 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Dilution 47785140-22280-1 D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FHTotal/NA Air Dilution 47812140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BHTotal/NA Air Dilution 47785140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FHTotal/NA Air Dilution 47812140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BHTotal/NA Air Dilution 47785140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FHTotal/NA Air Dilution 47812140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BHTotal/NA Analysis Batch: 48219 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48218140-22280-1 D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FHTotal/NA Air 537 (modified)47812140-22280-4 D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)48218140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FHTotal/NA Air 537 (modified)48218140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BHTotal/NA Air 537 (modified)47812140-22280-8 D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)48218140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FHTotal/NA Air 537 (modified)48218140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BHTotal/NA Air 537 (modified)47812140-22280-12 D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)47812MB 140-47734/14-B Method Blank Total/NA Air 537 (modified)47812MB 140-47734/1-B Method Blank Total/NA Air 537 (modified)47785MB 140-47757/1-B Method Blank Total/NA Air 537 (modified)47812LCS 140-47734/2-B Lab Control Sample Total/NA Air 537 (modified)47785LCS 140-47757/2-B Lab Control Sample Total/NA Air 537 (modified)47812LCSD 140-47734/3-B Lab Control Sample Dup Total/NA Air 537 (modified)47785LCSD 140-47757/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48223 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48218140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BHTotal/NA Eurofins TestAmerica, Knoxville Page 13 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Client Sample ID: D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FH Lab Sample ID: 140-22280-1 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 111 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 56 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 2 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 20:10 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BH Lab Sample ID: 140-22280-2 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 0.2 uL 10000 uL Analysis 537 (modified)1 48223 03/28/21 10:54 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22280-3 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.0058 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 11:01 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22280-4 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 23:16 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 14 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Client Sample ID: D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FH Lab Sample ID: 140-22280-5 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 135 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 68 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 5 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 20:18 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BH Lab Sample ID: 140-22280-6 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 1 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 23:25 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22280-7 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.00518 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 11:09 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22280-8 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 23:33 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 15 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Client Sample ID: D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FH Lab Sample ID: 140-22280-9 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 128 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 64 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 10 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 20:27 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BH Lab Sample ID: 140-22280-10 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 1 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 23:51 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22280-11 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.00549 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 11:36 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22280-12 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/28/21 00:00 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 16 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Client Sample ID: Method Blank Lab Sample ID: MB 140-47734/14-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 23:42 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-47734/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:20 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-47757/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:08 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-47849/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:08 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47734/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:29 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 17 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47757/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:17 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47849/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:17 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47734/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:37 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47757/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:26 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47849/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:25 JRC TAL KNXTotal/NA LCAInstrument ID: Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 18 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Accreditation/Certification Summary Client: The Chemours Company FC, LLC Job ID: 140-22280-1 Project/Site: VEN Carbon Bed Inlet Laboratory: Eurofins TestAmerica, Knoxville All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date N/AAFCEE ANAB Dept. of Defense ELAP L2311 02-13-22 ANAB Dept. of Energy L2311.01 02-13-22 ANAB ISO/IEC 17025 L2311 02-13-22 ANAB ISO/IEC 17025 L2311 02-14-22 Arkansas DEQ State 88-0688 06-17-21 California State 2423 06-30-22 Colorado State TN00009 02-28-21 * Connecticut State PH-0223 09-30-21 Florida NELAP E87177 07-01-21 Georgia (DW)State 906 12-11-22 Hawaii State NA 12-11-21 Kansas NELAP E-10349 10-31-21 Kentucky (DW)State 90101 12-31-21 Louisiana NELAP 83979 06-30-21 Louisiana (DW)State LA019 12-31-21 Maryland State 277 03-31-22 Michigan State 9933 12-11-22 Nevada State TN00009 07-31-21 New Hampshire NELAP 299919 01-17-22 New Jersey NELAP TN001 07-01-21 New York NELAP 10781 04-01-21 North Carolina (DW)State 21705 07-31-21 North Carolina (WW/SW)State 64 12-31-21 Ohio VAP State CL0059 06-02-23 Oklahoma State 9415 08-31-21 Oregon NELAP TNI0189 01-01-22 Pennsylvania NELAP 68-00576 12-31-21 Tennessee State 02014 12-11-22 Texas NELAP T104704380-18-12 08-31-21 US Fish & Wildlife US Federal Programs 058448 07-31-21 USDA US Federal Programs P330-19-00236 08-20-22 Utah NELAP TN00009 07-31-21 Virginia NELAP 460176 09-14-21 Washington State C593 01-19-22 West Virginia (DW)State 9955C 01-02-22 West Virginia DEP State 345 05-01-21 Wisconsin State 998044300 08-31-21 Eurofins TestAmerica, Knoxville * Accreditation/Certification renewal pending - accreditation/certification considered valid. Page 19 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Method Method Description LaboratoryProtocol EPA537 (modified) Fluorinated Alkyl Substances TAL KNX NoneDilutionDilution and Re-fortification of Standards TAL KNX TAL SOPNoneLeaching Procedure TAL KNX TAL SOPNoneLeaching Procedure for Condensate TAL KNX TAL SOPNoneLeaching Procedure for Filter TAL KNX NoneSplitSource Air Split TAL KNX Protocol References: EPA = US Environmental Protection Agency None = None TAL SOP = TestAmerica Laboratories, Standard Operating Procedure Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 20 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary Job ID: 140-22280-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Inlet Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID 140-22280-1 D-1976,1977 VEN CARBON BED INLET R1 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22280-2 D-1978,1979,1981 VEN CARBON BED INLET R1 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22280-3 D-1980 VEN CARBON BED INLET R1 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22280-4 D-1982 VEN CARBON BED INLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 140-22280-5 D-1983,1984 VEN CARBON BED INLET R2 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22280-6 D-1985,1986,1988 VEN CARBON BED INLET R2 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22280-7 D-1987 VEN CARBON BED INLET R2 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22280-8 D-1989 VEN CARBON BED INLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 140-22280-9 D-1990,1991 VEN CARBON BED INLET R3 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22280-10 D-1992,1993,1995 VEN CARBON BED INLET R3 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22280-11 D-1994 VEN CARBON BED INLET R3 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22280-12 D-1996 VEN CARBON BED INLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 Eurofins TestAmerica, Knoxville Page 21 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 22 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 23 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 24 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 25 of 25 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VEN Carbon Bed Outlet Laboratory Data ANALYTICAL REPORT Eurofins TestAmerica, Knoxville 5815 Middlebrook Pike Knoxville, TN 37921 Tel: (865)291-3000 Laboratory Job ID: 140-22278-1 Client Project/Site: VEN Carbon Bed Outlet For: The Chemours Company FC, LLC c/o AECOM Sabre Building, Suite 300 4051 Ogletown Road Newark, Delaware 19713 Attn: Michael Aucoin Authorized for release by: 3/31/2021 9:39:12 AM Courtney Adkins, Project Manager II (865)291-3019 courtney.adkins@eurofinset.com The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Laboratory Job ID: 140-22278-1 Page 2 of 27 Eurofins TestAmerica, Knoxville3/31/2021 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Default Detection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Qualifiers LCMS Qualifier Description *+LCS and/or LCSD is outside acceptance limits, high biased. Qualifier *1 LCS/LCSD RPD exceeds control limits. B Compound was found in the blank and sample. Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins TestAmerica, Knoxville Page 3 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Job ID: 140-22278-1 Laboratory: Eurofins TestAmerica, Knoxville Narrative Job Narrative 140-22278-1 Sample Receipt The samples were received on March 13, 2021 at 10:40 AM. The temperature of the cooler at receipt was 1.4º C. LCMS LC/MS/MS Sampling Train Preparation and Analysis: The sampling train components are extracted and analyzed for Per- and Polyfluorinated Alkyl Substances (PFAS) using Eurofins TestAmerica Knoxville standard operating procedures KNOX-OP-0026 and KNOX-LC-0007. The sampling trains are prepared as four analytical fractions: The particulate filter and front half of the filter holder, nozzle and probe solvent rinses are combined for one analytical fraction. The XAD-2 resin trap and back half of the filter holder, coil condenser and connecting glassware solvent rinses are also combined as a separate analytical fraction. The condensate, impinger contents and their related glassware DI water rinses make up the third analytical fraction. The breakthrough XAD module makes up the fourth analytical fraction. The filters and XAD components are spiked with isotope dilution internal standards and the components are extracted with methanol/ammonium hydroxide by shaking for at least 18 hours. The extracts are concentrated to 10 mL and analyzed by HPLC/MS/MS. The condensates are spiked with the isotope dilution internal standards and extracted using either Solid-Phase Extraction (SPE) or diluting the water sample for analysis. Each extract at its final volume is 80:20 methanol:water Sample results were calculated using the following equation: Result, ηg/sample = (on-column concentration, ηg/mL) × (nominal final volume of extract (10 mL) / 1 sample) × DF × SF Where: DF = Instrument dilution factor SF = Extraction Split Factor = (final volume of extract in the initial extraction batch / initial volume of extract in the “Split” batch) For condensate, if less than the entire sample is extracted, the fraction of sample used replaces “1 sample” Method 537 (modified): The method blank for preparation batch 140-47849 and 140-47874 contained HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. All the samples have the same level of contamination. Investigating the root cause. Checking the standards used in the preparation of the extracts. Method 537 (modified): The Isotope Dilution Analyte (IDA) recovery associated with the following samples is below the method recommended limit: (LCS 140-47734/2-B), (LCSD 140-47734/3-B) and (MB 140-47734/1-B). Generally, data quality is not considered affected if the IDA signal-to-noise ratio is greater than 10:1. Method 537 (modified): The method blank for preparation batch 140-47757 and 140-47785 contained HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. Method 537 (modified): The laboratory control sample (LCS) and / or laboratory control sample duplicate (LCSD) for preparation batch 140-47734 and 140-47812 and analytical batch 140-48219 recovered outside control limits for HFPO-DA. The analyte was biased high in the LCS/LCSD. The samples were consumed during the extraction process and therefore, the data have been reported. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins TestAmerica, KnoxvillePage 4 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Lab Sample ID: 140-22278-1Client Sample ID: Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 134 B 1.20 0.695 ug/Sample 03/15/21 14:51 03/28/21 10:46 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 103 25-150 03/15/21 14:51 03/28/21 10:46 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-2Client Sample ID: Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 842 *+ *1 16.0 14.0 ug/Sample 03/15/21 06:58 03/27/21 21:55 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 95 25-150 03/15/21 06:58 03/27/21 21:55 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-3Client Sample ID: Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.278 B 0.0899 0.0148 ug/Sample 03/17/21 15:12 03/27/21 10:34 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 110 25-150 03/17/21 15:12 03/27/21 10:34 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-4Client Sample ID: Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.0491 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 22:04 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 89 25-150 03/15/21 06:58 03/27/21 22:04 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 5 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Lab Sample ID: 140-22278-5Client Sample ID: Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 142 B 2.00 1.16 ug/Sample 03/15/21 14:51 03/27/21 19:52 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 100 25-150 03/15/21 14:51 03/27/21 19:52 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-6Client Sample ID: Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 257 *+ *1 3.20 2.80 ug/Sample 03/15/21 06:58 03/27/21 22:13 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 96 25-150 03/15/21 06:58 03/27/21 22:13 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-7Client Sample ID: Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.286 B 0.0992 0.0164 ug/Sample 03/17/21 15:12 03/27/21 10:43 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 106 25-150 03/17/21 15:12 03/27/21 10:43 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-8Client Sample ID: Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.0194 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 22:39 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 88 25-150 03/15/21 06:58 03/27/21 22:39 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 6 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Lab Sample ID: 140-22278-9Client Sample ID: Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 159 B 1.98 1.15 ug/Sample 03/15/21 14:51 03/27/21 20:01 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 104 25-150 03/15/21 14:51 03/27/21 20:01 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-10Client Sample ID: Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BH Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 244 *+ *1 3.20 2.80 ug/Sample 03/15/21 06:58 03/27/21 22:49 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 105 25-150 03/15/21 06:58 03/27/21 22:49 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-11Client Sample ID: Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 COND Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.296 B 0.0865 0.0143 ug/Sample 03/17/21 15:12 03/27/21 10:52 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 105 25-150 03/17/21 15:12 03/27/21 10:52 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22278-12Client Sample ID: Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.155 *+ *1 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 22:58 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 98 25-150 03/15/21 06:58 03/27/21 22:58 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 7 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Method: 537 (modified) - Fluorinated Alkyl Substances Prep: None 0.00100HFPO-DA ug/Sample Analyte UnitsMDLRL 0.000580 0.00160HFPO-DA ug/Sample0.00140 0.00200HFPO-DA ug/Sample0.000330 Eurofins TestAmerica, Knoxville Page 8 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Isotope Dilution Summary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Method: 537 (modified) - Fluorinated Alkyl Substances Prep Type: Total/NAMatrix: Air Lab Sample ID Client Sample ID (25-150) HFPODA 103140-22278-1 Percent Isotope Dilution Recovery (Acceptance Limits) Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH 95140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BH 110140-22278-3 Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 COND 89140-22278-4 Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 100140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH 96140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BH 106140-22278-7 Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 COND 88140-22278-8 Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 104140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH 105140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BH 105140-22278-11 Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 COND 98140-22278-12 Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE 43LCS 140-47734/2-B Lab Control Sample 88LCS 140-47757/2-B Lab Control Sample 109LCS 140-47849/2-B Lab Control Sample 33LCSD 140-47734/3-B Lab Control Sample Dup 95LCSD 140-47757/3-B Lab Control Sample Dup 108LCSD 140-47849/3-B Lab Control Sample Dup 45MB 140-47734/1-B Method Blank 92MB 140-47757/1-B Method Blank 101MB 140-47849/1-B Method Blank Surrogate Legend HFPODA = 13C3 HFPO-DA Eurofins TestAmerica, Knoxville Page 9 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Method: 537 (modified) - Fluorinated Alkyl Substances Client Sample ID: Method BlankLab Sample ID: MB 140-47734/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/15/21 06:58 03/27/21 21:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 45 25-150 03/27/21 21:20 1 MB MB Isotope Dilution 03/15/21 06:58 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47734/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 HFPO-DA 0.0200 0.02128 ug/Sample 106 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 43 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47734/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47734 HFPO-DA 0.0200 0.03810 *+ *1 ug/Sample 190 60-140 57 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 33 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47757/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 RL MDL HFPO-DA 0.003180 0.00100 0.000580 ug/Sample 03/15/21 14:51 03/27/21 19:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 92 25-150 03/27/21 19:08 1 MB MB Isotope Dilution 03/15/21 14:51 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47757/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 HFPO-DA 0.0200 0.02453 ug/Sample 123 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 88 LCS LCS Qualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 10 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Method: 537 (modified) - Fluorinated Alkyl Substances (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47757/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47757 HFPO-DA 0.0200 0.02526 ug/Sample 126 60-140 3 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 95 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47849/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 RL MDL HFPO-DA 0.001638 0.000500 0.0000825 ug/Sample 03/17/21 15:12 03/27/21 10:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 101 25-150 03/27/21 10:08 1 MB MB Isotope Dilution 03/17/21 15:12 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47849/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 HFPO-DA 0.0100 0.01169 ug/Sample 117 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 109 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47849/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 47849 HFPO-DA 0.0100 0.01195 ug/Sample 119 60-140 2 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 108 LCSD LCSD Qualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 11 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet LCMS Prep Batch: 47734 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BHTotal/NA Air None140-22278-4 Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air None140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BHTotal/NA Air None140-22278-8 Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air None140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BHTotal/NA Air None140-22278-12 Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air NoneMB 140-47734/1-B Method Blank Total/NA Air NoneLCS 140-47734/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47734/3-B Lab Control Sample Dup Total/NA Prep Batch: 47757 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22278-1 Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Total/NA Air None140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Total/NA Air None140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Total/NA Air NoneMB 140-47757/1-B Method Blank Total/NA Air NoneLCS 140-47757/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47757/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 47785 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47757140-22278-1 Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Total/NA Air Split 47757140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Total/NA Air Split 47757140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Total/NA Air Split 47757MB 140-47757/1-B Method Blank Total/NA Air Split 47757LCS 140-47757/2-B Lab Control Sample Total/NA Air Split 47757LCSD 140-47757/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 47812 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47734140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BHTotal/NA Air Split 47734140-22278-4 Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BHTotal/NA Air Split 47734140-22278-8 Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BHTotal/NA Air Split 47734140-22278-12 Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air Split 47734MB 140-47734/1-B Method Blank Total/NA Air Split 47734LCS 140-47734/2-B Lab Control Sample Total/NA Air Split 47734LCSD 140-47734/3-B Lab Control Sample Dup Total/NA Prep Batch: 47849 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22278-3 Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air None140-22278-7 Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air None140-22278-11 Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air NoneMB 140-47849/1-B Method Blank Total/NA Air NoneLCS 140-47849/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47849/3-B Lab Control Sample Dup Total/NA Eurofins TestAmerica, Knoxville Page 12 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet LCMS Cleanup Batch: 47874 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47849140-22278-3 Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849140-22278-7 Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849140-22278-11 Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air Split 47849MB 140-47849/1-B Method Blank Total/NA Air Split 47849LCS 140-47849/2-B Lab Control Sample Total/NA Air Split 47849LCSD 140-47849/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48210 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)47874140-22278-3 Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874140-22278-7 Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874140-22278-11 Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 CONDTotal/NA Air 537 (modified)47874MB 140-47849/1-B Method Blank Total/NA Air 537 (modified)47874LCS 140-47849/2-B Lab Control Sample Total/NA Air 537 (modified)47874LCSD 140-47849/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 48218 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Dilution 47785140-22278-1 Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Total/NA Air Dilution 47812140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BHTotal/NA Air Dilution 47785140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Total/NA Air Dilution 47812140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BHTotal/NA Air Dilution 47785140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Total/NA Air Dilution 47812140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BHTotal/NA Analysis Batch: 48219 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48218140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BHTotal/NA Air 537 (modified)47812140-22278-4 Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)48218140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Total/NA Air 537 (modified)48218140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BHTotal/NA Air 537 (modified)47812140-22278-8 Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)48218140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Total/NA Air 537 (modified)48218140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BHTotal/NA Air 537 (modified)47812140-22278-12 Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBETotal/NA Air 537 (modified)47812MB 140-47734/1-B Method Blank Total/NA Air 537 (modified)47785MB 140-47757/1-B Method Blank Total/NA Air 537 (modified)47812LCS 140-47734/2-B Lab Control Sample Total/NA Air 537 (modified)47785LCS 140-47757/2-B Lab Control Sample Total/NA Air 537 (modified)47812LCSD 140-47734/3-B Lab Control Sample Dup Total/NA Air 537 (modified)47785LCSD 140-47757/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48223 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48218140-22278-1 Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Total/NA Eurofins TestAmerica, Knoxville Page 13 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Client Sample ID: Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Lab Sample ID: 140-22278-1 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 115 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 48 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 10 uL 10000 uL Analysis 537 (modified)1 48223 03/28/21 10:46 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BH Lab Sample ID: 140-22278-2 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 1 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 21:55 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22278-3 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.00556 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:34 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22278-4 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 22:04 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 14 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Client Sample ID: Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Lab Sample ID: 140-22278-5 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 126 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 63 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 5 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 19:52 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BH Lab Sample ID: 140-22278-6 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 5 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 22:13 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22278-7 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.00504 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:43 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22278-8 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 22:39 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 15 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Client Sample ID: Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Lab Sample ID: 140-22278-9 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 115 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 58 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 5 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 20:01 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BH Lab Sample ID: 140-22278-10 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Cleanup Dilution 48218 03/27/21 05:30 JRC TAL KNXTotal/NA 5 uL 10000 uL Analysis 537 (modified)1 48219 03/27/21 22:49 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 COND Lab Sample ID: 140-22278-11 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 0.00578 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:52 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Lab Sample ID: 140-22278-12 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 22:58 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 16 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Client Sample ID: Method Blank Lab Sample ID: MB 140-47734/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:20 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-47757/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:08 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-47849/1-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:08 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47734/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:29 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47757/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:17 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 17 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-47849/2-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:17 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47734/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 06:58 TAL KNX47734 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 47812 03/17/21 08:03 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 21:37 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47757/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/15/21 14:51 TAL KNX47757 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 47785 03/16/21 11:03 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48219 03/27/21 19:26 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 140-47849/3-B Matrix: AirDate Collected: N/A Date Received: N/A Prep None DWS03/17/21 15:12 TAL KNX47849 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 47874 03/18/21 09:23 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 10:25 JRC TAL KNXTotal/NA LCAInstrument ID: Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 18 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Accreditation/Certification Summary Client: The Chemours Company FC, LLC Job ID: 140-22278-1 Project/Site: VEN Carbon Bed Outlet Laboratory: Eurofins TestAmerica, Knoxville All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date N/AAFCEE ANAB Dept. of Defense ELAP L2311 02-13-22 ANAB Dept. of Energy L2311.01 02-13-22 ANAB ISO/IEC 17025 L2311 02-13-22 ANAB ISO/IEC 17025 L2311 02-14-22 Arkansas DEQ State 88-0688 06-17-21 California State 2423 06-30-22 Colorado State TN00009 02-28-21 * Connecticut State PH-0223 09-30-21 Florida NELAP E87177 07-01-21 Georgia (DW)State 906 12-11-22 Hawaii State NA 12-11-21 Kansas NELAP E-10349 10-31-21 Kentucky (DW)State 90101 12-31-21 Louisiana NELAP 83979 06-30-21 Louisiana (DW)State LA019 12-31-21 Maryland State 277 03-31-22 Michigan State 9933 12-11-22 Nevada State TN00009 07-31-21 New Hampshire NELAP 299919 01-17-22 New Jersey NELAP TN001 07-01-21 New York NELAP 10781 04-01-21 North Carolina (DW)State 21705 07-31-21 North Carolina (WW/SW)State 64 12-31-21 Ohio VAP State CL0059 06-02-23 Oklahoma State 9415 08-31-21 Oregon NELAP TNI0189 01-01-22 Pennsylvania NELAP 68-00576 12-31-21 Tennessee State 02014 12-11-22 Texas NELAP T104704380-18-12 08-31-21 US Fish & Wildlife US Federal Programs 058448 07-31-21 USDA US Federal Programs P330-19-00236 08-20-22 Utah NELAP TN00009 07-31-21 Virginia NELAP 460176 09-14-21 Washington State C593 01-19-22 West Virginia (DW)State 9955C 01-02-22 West Virginia DEP State 345 05-01-21 Wisconsin State 998044300 08-31-21 Eurofins TestAmerica, Knoxville * Accreditation/Certification renewal pending - accreditation/certification considered valid. Page 19 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Method Method Description LaboratoryProtocol EPA537 (modified) Fluorinated Alkyl Substances TAL KNX NoneDilutionDilution and Re-fortification of Standards TAL KNX TAL SOPNoneLeaching Procedure TAL KNX TAL SOPNoneLeaching Procedure for Condensate TAL KNX TAL SOPNoneLeaching Procedure for Filter TAL KNX NoneSplitSource Air Split TAL KNX Protocol References: EPA = US Environmental Protection Agency None = None TAL SOP = TestAmerica Laboratories, Standard Operating Procedure Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 20 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary Job ID: 140-22278-1Client: The Chemours Company FC, LLC Project/Site: VEN Carbon Bed Outlet Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID 140-22278-1 Z-2560,2561 VEN CB OUTLET R1 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22278-2 Z-2562,2563,2565 VEN CB OUTLET R1 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22278-3 Z-2564 VEN CB OUTLET R1 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22278-4 Z-2566 VEN CB OUTLET R1 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 140-22278-5 Z-2567,2568 VEN CB OUTLET R2 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22278-6 Z-2569,2570,2572 VEN CB OUTLET R2 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22278-7 Z-2571 VEN CB OUTLET R2 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22278-8 Z-2573 VEN CB OUTLET R2 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 140-22278-9 Z-2574,2575 VEN CB OUTLET R3 OTM-45 FH Air 03/09/21 00:00 03/13/21 10:40 140-22278-10 Z-2576,2577,2579 VEN CB OUTLET R3 OTM-45 BH Air 03/09/21 00:00 03/13/21 10:40 140-22278-11 Z-2578 VEN CB OUTLET R3 OTM-45 IMPINGERS 1,2&3 COND Air 03/09/21 00:00 03/13/21 10:40 140-22278-12 Z-2580 VEN CB OUTLET R3 OTM-45 BREAKTHROUGH XAD-2 RESIN TUBE Air 03/09/21 00:00 03/13/21 10:40 Eurofins TestAmerica, Knoxville Page 21 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 22 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 23 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 24 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 25 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 26 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 27 of 27 3/31/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QA/QC Laboratory Data ANALYTICAL REPORT Eurofins TestAmerica, Knoxville 5815 Middlebrook Pike Knoxville, TN 37921 Tel: (865)291-3000 Laboratory Job ID: 140-22287-1 Client Project/Site: PPA Carbon Bed Field QC For: The Chemours Company FC, LLC c/o AECOM Sabre Building, Suite 300 4051 Ogletown Road Newark, Delaware 19713 Attn: Michael Aucoin Authorized for release by: 4/6/2021 1:21:45 PM Courtney Adkins, Project Manager II (865)291-3019 courtney.adkins@eurofinset.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Laboratory Job ID: 140-22287-1 Page 2 of 23 Eurofins TestAmerica, Knoxville4/6/2021 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Qualifiers LCMS Qualifier Description B Compound was found in the blank and sample. Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins TestAmerica, Knoxville Page 3 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: The Chemours Company FC, LLC Job ID: 140-22287-1 Project/Site: PPA Carbon Bed Field QC Job ID: 140-22287-1 Laboratory: Eurofins TestAmerica, Knoxville Narrative Job Narrative 140-22287-1 Receipt The samples were received on 3/13/2021 10:40 AM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 1.6º C. LCMS LC/MS/MS Sampling Train Preparation and Analysis: The sampling train components are extracted and analyzed for Per- and Polyfluorinated Alkyl Substances (PFAS) using Eurofins TestAmerica Knoxville standard operating procedures KNOX-OP-0026 and KNOX-LC-0007. The sampling trains are prepared as four analytical fractions: The particulate filter and front half of the filter holder, nozzle and probe solvent rinses are combined for one analytical fraction. The XAD-2 resin trap and back half of the filter holder, coil condenser and connecting glassware solvent rinses are also combined as a separate analytical fraction. The condensate, impinger contents and their related glassware DI water rinses make up the third analytical fraction. The breakthrough XAD module makes up the fourth analytical fraction. The filters and XAD components are spiked with isotope dilution internal standards and the components are extracted with methanol/ammonium hydroxide by shaking for at least 18 hours. The extracts are concentrated to 10 mL and analyzed by HPLC/MS/MS. The condensates are spiked with the isotope dilution internal standards and extracted using either Solid-Phase Extraction (SPE) or diluting the water sample for analysis. Each extract at its final volume is 80:20 methanol:water Sample results were calculated using the following equation: Result, ηg/sample = (on-column concentration, ηg/mL) × (nominal final volume of extract (10 mL) / 1 sample) × DF × SF Where: DF = Instrument dilution factor SF = Extraction Split Factor = (final volume of extract in the initial extraction batch / initial volume of extract in the “Split” batch) For condensate, if less than the entire sample is extracted, the fraction of sample used replaces “1 sample” Method 537 (modified): The method blank for preparation batch 140-48003 and 140-48146 contained HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. Method 537 (modified): The Isotope Dilution Analyte (IDA) recovery associated with the following sample is below the method recommended limit: (LCS 140-47984/2-B). Generally, data quality is not considered affected if the IDA signal-to-noise ratio is greater than 10:1. Method 537 (modified): The method blank for preparation batch 140-47984 and 140-48079 HFPO-DA above the reporting limit (RL). The entire sample was consumed during analysis or extraction, therefore, the data have been reported. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins TestAmerica, KnoxvillePage 4 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Detection Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Client Sample ID: T-1108,1109 QC OTM-45 PPA CB FH BT Lab Sample ID: 140-22287-1 HFPO-DA RL 0.00100 ug/Sample MDL 0.000580 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1B0.00386 537 (modified) Client Sample ID: T-1110,1111,1113 QC OTM-45 PPA CB BH BT Lab Sample ID: 140-22287-2 No Detections. Client Sample ID: T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BT Lab Sample ID: 140-22287-3 HFPO-DA RL 0.000500 ug/Sample MDL 0.0000825 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1B0.00133 537 (modified) Client Sample ID: T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BT Lab Sample ID: 140-22287-4 No Detections. Client Sample ID: T-1115 QC OTM-45 PPA CB DI WATER RB Lab Sample ID: 140-22287-5 HFPO-DA RL 0.000500 ug/Sample MDL 0.0000825 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1B0.00121 537 (modified) Client Sample ID: T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RB Lab Sample ID: 140-22287-6 No Detections. Client Sample ID: T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PB Lab Sample ID: 140-22287-7 No Detections. Client Sample ID: A-7359 MEDIA CHECK XAD Lab Sample ID: 140-22287-8 No Detections. Client Sample ID: A-7360 MEDIA CHECK FILTER Lab Sample ID: 140-22287-9 HFPO-DA RL 0.00100 ug/Sample MDL 0.000580 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1B0.00267 537 (modified) Eurofins TestAmerica, Knoxville This Detection Summary does not include radiochemical test results. Page 5 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Lab Sample ID: 140-22287-1Client Sample ID: T-1108,1109 QC OTM-45 PPA CB FH BT Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.00386 B 0.00100 0.000580 ug/Sample 03/22/21 14:10 03/28/21 11:13 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 96 25-150 03/22/21 14:10 03/28/21 11:13 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-2Client Sample ID: T-1110,1111,1113 QC OTM-45 PPA CB BH BT Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 21:44 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 80 25-150 03/23/21 14:37 04/01/21 21:44 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-3Client Sample ID: T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BT Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.00133 B 0.000500 0.0000825 ug/Sample 03/23/21 05:53 03/27/21 14:23 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 108 25-150 03/23/21 05:53 03/27/21 14:23 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-4Client Sample ID: T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BT Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 21:53 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 76 25-150 03/23/21 14:37 04/01/21 21:53 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-5Client Sample ID: T-1115 QC OTM-45 PPA CB DI WATER RB Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.00121 B 0.000500 0.0000825 ug/Sample 03/23/21 05:53 03/27/21 14:32 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 111 25-150 03/23/21 05:53 03/27/21 14:32 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 6 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Lab Sample ID: 140-22287-6Client Sample ID: T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RB Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 22:02 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 91 25-150 03/23/21 14:37 04/01/21 22:02 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-7Client Sample ID: T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PB Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 22:11 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 87 25-150 03/23/21 14:37 04/01/21 22:11 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-8Client Sample ID: A-7359 MEDIA CHECK XAD Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 22:37 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 74 25-150 03/23/21 14:37 04/01/21 22:37 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 140-22287-9Client Sample ID: A-7360 MEDIA CHECK FILTER Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Sample Container: Air Train Method: 537 (modified) - Fluorinated Alkyl Substances RL MDL HFPO-DA 0.00267 B 0.00100 0.000580 ug/Sample 03/22/21 14:10 03/28/21 11:22 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 13C3 HFPO-DA 83 25-150 03/22/21 14:10 03/28/21 11:22 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 7 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Isotope Dilution Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Method: 537 (modified) - Fluorinated Alkyl Substances Prep Type: Total/NAMatrix: Air Lab Sample ID Client Sample ID (25-150) HFPODA 96140-22287-1 Percent Isotope Dilution Recovery (Acceptance Limits) T-1108,1109 QC OTM-45 PPA CB FH BT 80140-22287-2 T-1110,1111,1113 QC OTM-45 PPA CB BH BT 108140-22287-3 T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BT 76140-22287-4 T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BT 111140-22287-5 T-1115 QC OTM-45 PPA CB DI WATER RB 91140-22287-6 T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RB 87140-22287-7 T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PB 74140-22287-8 A-7359 MEDIA CHECK XAD 83140-22287-9 A-7360 MEDIA CHECK FILTER 32LCS 140-47984/2-B Lab Control Sample 112LCS 140-48003/2-B Lab Control Sample 76LCS 140-48051/2-B Lab Control Sample 96LCSD 140-47984/3-B Lab Control Sample Dup 107LCSD 140-48003/3-B Lab Control Sample Dup 78LCSD 140-48051/3-B Lab Control Sample Dup 76MB 140-47984/14-B Method Blank 92MB 140-47984/1-B Method Blank 102MB 140-48003/14-B Method Blank 112MB 140-48003/1-B Method Blank 93MB 140-48051/1-B Method Blank Surrogate Legend HFPODA = 13C3 HFPO-DA Eurofins TestAmerica, Knoxville Page 8 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Method: 537 (modified) - Fluorinated Alkyl Substances Client Sample ID: Method BlankLab Sample ID: MB 140-47984/14-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47984 RL MDL HFPO-DA 0.002612 0.00100 0.000580 ug/Sample 03/22/21 14:10 03/28/21 03:40 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 76 25-150 03/28/21 03:40 1 MB MB Isotope Dilution 03/22/21 14:10 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-47984/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47984 RL MDL HFPO-DA 0.002562 0.00100 0.000580 ug/Sample 03/22/21 14:10 03/28/21 01:28 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 92 25-150 03/28/21 01:28 1 MB MB Isotope Dilution 03/22/21 14:10 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-47984/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47984 HFPO-DA 0.0200 0.02413 ug/Sample 121 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 32 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-47984/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48219 Prep Batch: 47984 HFPO-DA 0.0200 0.02295 ug/Sample 115 60-140 5 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 96 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-48003/14-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 48003 RL MDL HFPO-DA 0.001372 0.000500 0.0000825 ug/Sample 03/23/21 05:53 03/27/21 13:57 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 102 25-150 03/27/21 13:57 1 MB MB Isotope Dilution 03/23/21 05:53 Dil FacPrepared AnalyzedQualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 9 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Method: 537 (modified) - Fluorinated Alkyl Substances (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-48003/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 48003 RL MDL HFPO-DA 0.001514 0.000500 0.0000825 ug/Sample 03/23/21 05:53 03/27/21 11:45 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 112 25-150 03/27/21 11:45 1 MB MB Isotope Dilution 03/23/21 05:53 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-48003/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 48003 HFPO-DA 0.0100 0.01114 ug/Sample 111 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 112 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-48003/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48210 Prep Batch: 48003 HFPO-DA 0.0100 0.01177 ug/Sample 118 60-140 6 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 107 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 140-48051/1-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48419 Prep Batch: 48051 RL MDL HFPO-DA ND 0.00160 0.00140 ug/Sample 03/23/21 14:37 04/01/21 21:18 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 13C3 HFPO-DA 93 25-150 04/01/21 21:18 1 MB MB Isotope Dilution 03/23/21 14:37 Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-48051/2-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48419 Prep Batch: 48051 HFPO-DA 0.0200 0.02171 ug/Sample 109 60-140 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 13C3 HFPO-DA 25 -150 Isotope Dilution 76 LCS LCS Qualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 10 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Method: 537 (modified) - Fluorinated Alkyl Substances (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 140-48051/3-B Matrix: Air Prep Type: Total/NA Analysis Batch: 48419 Prep Batch: 48051 HFPO-DA 0.0200 0.02091 ug/Sample 105 60-140 4 30 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 13C3 HFPO-DA 25 -150 Isotope Dilution 78 LCSD LCSD Qualifier Limits%Recovery Eurofins TestAmerica, Knoxville Page 11 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC LCMS Prep Batch: 47984 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22287-1 T-1108,1109 QC OTM-45 PPA CB FH BT Total/NA Air None140-22287-9 A-7360 MEDIA CHECK FILTER Total/NA Air NoneMB 140-47984/14-B Method Blank Total/NA Air NoneMB 140-47984/1-B Method Blank Total/NA Air NoneLCS 140-47984/2-B Lab Control Sample Total/NA Air NoneLCSD 140-47984/3-B Lab Control Sample Dup Total/NA Prep Batch: 48003 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22287-3 T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BTTotal/NA Air None140-22287-5 T-1115 QC OTM-45 PPA CB DI WATER RB Total/NA Air NoneMB 140-48003/14-B Method Blank Total/NA Air NoneMB 140-48003/1-B Method Blank Total/NA Air NoneLCS 140-48003/2-B Lab Control Sample Total/NA Air NoneLCSD 140-48003/3-B Lab Control Sample Dup Total/NA Prep Batch: 48051 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air None140-22287-2 T-1110,1111,1113 QC OTM-45 PPA CB BH BT Total/NA Air None140-22287-4 T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BTTotal/NA Air None140-22287-6 T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RBTotal/NA Air None140-22287-7 T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PBTotal/NA Air None140-22287-8 A-7359 MEDIA CHECK XAD Total/NA Air NoneMB 140-48051/1-B Method Blank Total/NA Air NoneLCS 140-48051/2-B Lab Control Sample Total/NA Air NoneLCSD 140-48051/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 48079 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 47984140-22287-1 T-1108,1109 QC OTM-45 PPA CB FH BT Total/NA Air Split 47984140-22287-9 A-7360 MEDIA CHECK FILTER Total/NA Air Split 47984MB 140-47984/14-B Method Blank Total/NA Air Split 47984MB 140-47984/1-B Method Blank Total/NA Air Split 47984LCS 140-47984/2-B Lab Control Sample Total/NA Air Split 47984LCSD 140-47984/3-B Lab Control Sample Dup Total/NA Cleanup Batch: 48146 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 48003140-22287-3 T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BTTotal/NA Air Split 48003140-22287-5 T-1115 QC OTM-45 PPA CB DI WATER RB Total/NA Air Split 48003MB 140-48003/14-B Method Blank Total/NA Air Split 48003MB 140-48003/1-B Method Blank Total/NA Air Split 48003LCS 140-48003/2-B Lab Control Sample Total/NA Air Split 48003LCSD 140-48003/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48210 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48146140-22287-3 T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BTTotal/NA Air 537 (modified)48146140-22287-5 T-1115 QC OTM-45 PPA CB DI WATER RB Total/NA Air 537 (modified)48146MB 140-48003/14-B Method Blank Total/NA Air 537 (modified)48146MB 140-48003/1-B Method Blank Total/NA Eurofins TestAmerica, Knoxville Page 12 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC LCMS (Continued) Analysis Batch: 48210 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48146LCS 140-48003/2-B Lab Control Sample Total/NA Air 537 (modified)48146LCSD 140-48003/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48219 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48079MB 140-47984/14-B Method Blank Total/NA Air 537 (modified)48079MB 140-47984/1-B Method Blank Total/NA Air 537 (modified)48079LCS 140-47984/2-B Lab Control Sample Total/NA Air 537 (modified)48079LCSD 140-47984/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48223 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48079140-22287-1 T-1108,1109 QC OTM-45 PPA CB FH BT Total/NA Air 537 (modified)48079140-22287-9 A-7360 MEDIA CHECK FILTER Total/NA Cleanup Batch: 48224 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Split 48051140-22287-2 T-1110,1111,1113 QC OTM-45 PPA CB BH BT Total/NA Air Split 48051140-22287-4 T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BTTotal/NA Air Split 48051140-22287-6 T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RBTotal/NA Air Split 48051140-22287-7 T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PBTotal/NA Air Split 48051140-22287-8 A-7359 MEDIA CHECK XAD Total/NA Air Split 48051MB 140-48051/1-B Method Blank Total/NA Air Split 48051LCS 140-48051/2-B Lab Control Sample Total/NA Air Split 48051LCSD 140-48051/3-B Lab Control Sample Dup Total/NA Analysis Batch: 48419 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air 537 (modified)48224140-22287-2 T-1110,1111,1113 QC OTM-45 PPA CB BH BT Total/NA Air 537 (modified)48224140-22287-4 T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BTTotal/NA Air 537 (modified)48224140-22287-6 T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RBTotal/NA Air 537 (modified)48224140-22287-7 T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PBTotal/NA Air 537 (modified)48224140-22287-8 A-7359 MEDIA CHECK XAD Total/NA Air 537 (modified)48224MB 140-48051/1-B Method Blank Total/NA Air 537 (modified)48224LCS 140-48051/2-B Lab Control Sample Total/NA Air 537 (modified)48224LCSD 140-48051/3-B Lab Control Sample Dup Total/NA Eurofins TestAmerica, Knoxville Page 13 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22287-1 Project/Site: PPA Carbon Bed Field QC Client Sample ID: T-1108,1109 QC OTM-45 PPA CB FH BT Lab Sample ID: 140-22287-1 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/22/21 14:10 TAL KNX47984 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 48079 03/24/21 09:23 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48223 03/28/21 11:13 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: T-1110,1111,1113 QC OTM-45 PPA CB BH BT Lab Sample ID: 140-22287-2 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 14:37 TAL KNX48051 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 48224 03/28/21 10:17 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48419 04/01/21 21:44 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BT Lab Sample ID: 140-22287-3 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 05:53 TAL KNX48003 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 48146 03/25/21 13:57 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 14:23 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BT Lab Sample ID: 140-22287-4 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 14:37 TAL KNX48051 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 48224 03/28/21 10:17 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48419 04/01/21 21:53 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: T-1115 QC OTM-45 PPA CB DI WATER RB Lab Sample ID: 140-22287-5 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 05:53 TAL KNX48003 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 10 mL Cleanup Split 48146 03/25/21 13:57 DWS TAL KNXTotal/NA 10 mL 10 mL Analysis 537 (modified)1 48210 03/27/21 14:32 JRC TAL KNXTotal/NA LCAInstrument ID: Eurofins TestAmerica, Knoxville Page 14 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: The Chemours Company FC, LLC Job ID: 140-22287-1 Project/Site: PPA Carbon Bed Field QC Client Sample ID: T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RB Lab Sample ID: 140-22287-6 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 14:37 TAL KNX48051 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 48224 03/28/21 10:17 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48419 04/01/21 22:02 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PB Lab Sample ID: 140-22287-7 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 14:37 TAL KNX48051 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 48224 03/28/21 10:17 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48419 04/01/21 22:11 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: A-7359 MEDIA CHECK XAD Lab Sample ID: 140-22287-8 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/23/21 14:37 TAL KNX48051 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 360 mL Cleanup Split 48224 03/28/21 10:17 DWS TAL KNXTotal/NA 180 mL 10 mL Analysis 537 (modified)1 48419 04/01/21 22:37 JRC TAL KNXTotal/NA LCAInstrument ID: Client Sample ID: A-7360 MEDIA CHECK FILTER Lab Sample ID: 140-22287-9 Matrix: AirDate Collected: 03/09/21 00:00 Date Received: 03/13/21 10:40 Prep None DWS03/22/21 14:10 TAL KNX47984 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 1 Sample 50 mL Cleanup Split 48079 03/24/21 09:23 DWS TAL KNXTotal/NA 25 mL 10 mL Analysis 537 (modified)1 48223 03/28/21 11:22 JRC TAL KNXTotal/NA LCAInstrument ID: Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 15 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Accreditation/Certification Summary Client: The Chemours Company FC, LLC Job ID: 140-22287-1 Project/Site: PPA Carbon Bed Field QC Laboratory: Eurofins TestAmerica, Knoxville All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date N/AAFCEE ANAB Dept. of Defense ELAP L2311 02-13-22 ANAB Dept. of Energy L2311.01 02-13-22 ANAB ISO/IEC 17025 L2311 02-13-22 ANAB ISO/IEC 17025 L2311 02-14-22 Arkansas DEQ State 88-0688 06-17-21 California State 2423 06-30-22 Colorado State TN00009 02-28-21 * Connecticut State PH-0223 09-30-21 Florida NELAP E87177 07-01-21 Georgia (DW)State 906 12-11-22 Hawaii State NA 12-11-21 Kansas NELAP E-10349 10-31-21 Kentucky (DW)State 90101 12-31-21 Louisiana NELAP 83979 06-30-21 Louisiana (DW)State LA019 12-31-21 Maryland State 277 03-31-22 Michigan State 9933 12-11-22 Nevada State TN00009 07-31-21 New Hampshire NELAP 299919 01-17-22 New Jersey NELAP TN001 07-01-21 New York NELAP 10781 03-31-22 North Carolina (DW)State 21705 07-31-21 North Carolina (WW/SW)State 64 12-31-21 Ohio VAP State CL0059 06-02-23 Oklahoma State 9415 08-31-21 Oregon NELAP TNI0189 01-01-22 Pennsylvania NELAP 68-00576 12-31-21 Tennessee State 02014 12-11-22 Texas NELAP T104704380-18-12 08-31-21 US Fish & Wildlife US Federal Programs 058448 07-31-21 USDA US Federal Programs P330-19-00236 08-20-22 Utah NELAP TN00009 07-31-21 Virginia NELAP 460176 09-14-21 Washington State C593 01-19-22 West Virginia (DW)State 9955C 01-02-22 West Virginia DEP State 345 05-01-21 Wisconsin State 998044300 08-31-21 Eurofins TestAmerica, Knoxville * Accreditation/Certification renewal pending - accreditation/certification considered valid. Page 16 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Method Method Description LaboratoryProtocol EPA537 (modified) Fluorinated Alkyl Substances TAL KNX TAL SOPNoneLeaching Procedure TAL KNX TAL SOPNoneLeaching Procedure for Condensate TAL KNX TAL SOPNoneLeaching Procedure for Filter TAL KNX NoneSplitSource Air Split TAL KNX Protocol References: EPA = US Environmental Protection Agency None = None TAL SOP = TestAmerica Laboratories, Standard Operating Procedure Laboratory References: TAL KNX = Eurofins TestAmerica, Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins TestAmerica, Knoxville Page 17 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary Job ID: 140-22287-1Client: The Chemours Company FC, LLC Project/Site: PPA Carbon Bed Field QC Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID 140-22287-1 T-1108,1109 QC OTM-45 PPA CB FH BT Air 03/09/21 00:00 03/13/21 10:40 140-22287-2 T-1110,1111,1113 QC OTM-45 PPA CB BH BT Air 03/09/21 00:00 03/13/21 10:40 140-22287-3 T-1112 QC OTM-45 PPA CB IMPINGER 1,2&3 COND BT Air 03/09/21 00:00 03/13/21 10:40 140-22287-4 T-1114 QC OTM-45 PPA CB BREAKTHROUGH XAD-2 RESIN TUBE BT Air 03/09/21 00:00 03/13/21 10:40 140-22287-5 T-1115 QC OTM-45 PPA CB DI WATER RB Air 03/09/21 00:00 03/13/21 10:40 140-22287-6 T-1116 QC OTM-45 PPA CB MEOH WITH 5% NH4OH RB Air 03/09/21 00:00 03/13/21 10:40 140-22287-7 T-1117 QC OTM-45 PPA CB COMBINED GLASSWARE RINSES (MEOH/5% NH4OH) PB Air 03/09/21 00:00 03/13/21 10:40 140-22287-8 A-7359 MEDIA CHECK XAD Air 03/09/21 00:00 03/13/21 10:40 140-22287-9 A-7360 MEDIA CHECK FILTER Air 03/09/21 00:00 03/13/21 10:40 Eurofins TestAmerica, Knoxville Page 18 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 19 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 20 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 21 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 22 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 23 of 23 4/6/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Ramboll - Source Emissions Testing Of The Vinyl Ethers North Carbon Bed APPENDIX E EQUIPMENT CALIBRATION DATA Pretest Equipment Calibration Data METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES 1) Select three critical orifices to calibrate the dry gas meter which bracket the expected operating range. 2) Record barometric pressure before and after calibration procedure. 3) Run at tested vacuum (from Orifice Calibration Report), for a period of time necessary to achieve a minimum total volume of 5 cubic feet. 4) Record data and information in the GREEN cells, YELLOW cells are calculated. INITIAL FINAL AVG (Pbar) DATE:2/10/2021 METER SERIAL #:MB3 BAROMETRIC PRESSURE (in Hg):30.38 30.38 30.38 METER PART #:CRITICAL ORIFICE SET SERIAL #:1393 K'TESTED TEMPERATURES °F ELAPSED Y % Diff Y % Diff FACTOR VACUUM DGM READINGS (FT3)AMBIENT DGM INLET DGM OUTLET DGM TIME (MIN)DGM DH (1)(2)(3)to with other ORIFICE #RUN #(AVG)(in Hg)INITIAL FINAL NET (Vm)INITIALFINALINITIALFINAL AVG q (in H2O)Vm (STD)Vcr (STD)Y Average Y orifices DH@ 1 0.306 24 889.290 895.162 5.872 57 60 61 60 60 60.25 15.00 0.44 6.0587 6.1346 1.013 1.53 2 0.306 3 0.306 AVG = 1.013 1.06 1.35 1 0.4268 22.5 895.162 900.693 5.531 58 61 62 60 61 61 10.00 0.86 5.7045 5.6987 0.999 1.54 2 0.4268 3 0.4268 AVG = 0.999 -0.29 -0.20 1 0.4961 21.5 900.693 907.113 6.420 58 62 63 61 61 61.75 10.00 1.2 6.6172 6.6240 1.001 1.59 2 0.4961 3 0.4961 AVG = 1.001 -0.09 0.47 1 0.7131 19 907.113 916.371 9.258 58 63 65 61 62 62.75 10.00 2.6 9.5563 9.5215 0.996 1.67 2 0.7131 3 0.7131 AVG = 0.996 -0.56 -0.43 1 0.8358 17.5 916.371 927.180 10.809 58 65 67 62 63 64.25 10.00 3.6 11.1521 11.1598 1.001 1.68 2 0.8358 3 0.8358 AVG = 1.001 -0.12 0.44 AVERAGE DRY GAS METER CALIBRATION FACTOR, Y = 1.002 AVERAGE DH@ = 1.60 (1)=Net volume of gas sample passed through DGM, corrected to standard conditions K1 =17.64 oR/in. Hg (English), 0.3858 oK/mm Hg (Metric) Tm =Absolute DGM avg. temperature (oR - English, oK - Metric) DH@ = 0.75 q DH Vm(std) Vcr(std) Vm (2)=Volume of gas sample passed through the critical orifice, corrected to standard conditions Tamb =Absolute ambient temperature (oR - English, oK - Metric) K' = Average K' factor from Critical Orifice Calibration (3)=DGM calibration factor 11 26 31 16 18 ENVIRONMENTAL SUPPLY COMPANY USING THE CRITICAL ORIFICES AS CALIBRATION STANDARDS:The following equations are used to calculate the standard volumes of air passed through the DGM, Vm (std), and the critical orifice, Vcr (std), and the DGM calibration factor, Y. These equations are automatically calculated in the spreadsheet above. ()2 () V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Initial Calibrations\Dry Gas Meters\2021\MB 3\MB 3 Initial Cal 02102021.xls METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES 1) Select three critical orifices to calibrate the dry gas meter which bracket the expected operating range. 2) Record barometric pressure before and after calibration procedure. 3) Run at tested vacuum (from Orifice Calibration Report), for a period of time necessary to achieve a minimum total volume of 5 cubic feet. 4) Record data and information in the GREEN cells, YELLOW cells are calculated. INITIAL FINAL AVG (Pbar) DATE:1/11/2021 METER SERIAL #:MB 5 BAROMETRIC PRESSURE (in Hg):29.92 29.92 29.92 METER PART #:CRITICAL ORIFICE SET SERIAL #:1393 K'TESTED TEMPERATURES °F ELAPSED Y % Diff Y % Diff FACTOR VACUUM DGM READINGS (FT3)AMBIENT DGM INLET DGM OUTLET DGM TIME (MIN)DGM DH (1)(2)(3)to with other ORIFICE #RUN #(AVG)(in Hg)INITIAL FINAL NET (Vm)INITIALFINALINITIALFINAL AVG q (in H2O)Vm (STD)Vcr (STD)Y Average Y orifices DH@ 1 0.306 23.5 606.287 614.284 7.997 64 65 66 67 66 66 20.00 0.51 8.0390 8.0016 0.995 1.80 2 0.306 3 0.306 AVG = 0.995 0.43 0.82 1 0.4268 22 614.297 619.908 5.611 65 66 67 66 66 66.25 10.00 1.05 5.6453 5.5749 0.988 1.91 2 0.4268 3 0.4268 AVG = 0.988 -0.36 0.02 1 0.4961 21 619.923 626.441 6.518 66 67 68 66 66 66.75 10.00 1.4 6.5572 6.4739 0.987 1.89 2 0.4961 3 0.4961 AVG = 0.987 -0.38 -0.02 1 0.7131 19 626.447 635.794 9.347 66 68 72 67 67 68.5 10.00 2.9 9.4065 9.3057 0.989 1.90 2 0.7131 3 0.7131 AVG = 0.989 -0.18 0.20 1 0.8358 17.5 635.813 646.695 10.882 67 71 74 68 69 70.5 10.00 4 10.9392 10.8965 0.996 1.90 2 0.8358 3 0.8358 AVG = 0.996 0.50 0.89 AVERAGE DRY GAS METER CALIBRATION FACTOR, Y = 0.991 AVERAGE DH@ = 1.88 (1)=Net volume of gas sample passed through DGM, corrected to standard conditions K1 =17.64 oR/in. Hg (English), 0.3858 oK/mm Hg (Metric) Tm =Absolute DGM avg. temperature (oR - English, oK - Metric) DH@ = 0.75 q DH Vm(std) Vcr(std) Vm (2)=Volume of gas sample passed through the critical orifice, corrected to standard conditions Tamb =Absolute ambient temperature (oR - English, oK - Metric) K' = Average K' factor from Critical Orifice Calibration (3)=DGM calibration factor 11 26 31 16 18 ENVIRONMENTAL SUPPLY COMPANY USING THE CRITICAL ORIFICES AS CALIBRATION STANDARDS:The following equations are used to calculate the standard volumes of air passed through the DGM, Vm (std), and the critical orifice, Vcr (std), and the DGM calibration factor, Y. These equations are automatically calculated in the spreadsheet above. ()2 () V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Initial Calibrations\Dry Gas Meters\2021\MB 5\MB 5 Initial Cal 01112021.xls Initial Oven Box Thermocouple Calibration Reference Thermocouple Reference Thermocouple Reference ThermocoupleTemperature (oR)Temperature (oR)Temperature (oR)Temperature (oR)Temperature (oR)Temperature (oR) OB-1 491.67 492.67 0.2%524.67 523.67 -0.2%671.67 673.67 0.3%SMilo 02/22/21 OB-2 491.67 492 0.1%530.67 531 0.1%671.67 672 0.0%SRW 03/02/21 OB-3 491.67 493 0.3%530.67 530 -0.1%671.67 671 -0.1%SRW 03/02/21 OB-4 491.67 493.67 0.4%524.67 524.67 0.0%671.67 670.67 -0.1%SMilo 02/22/21 OB-A 491.67 493 0.3%530.67 529 -0.3%671.67 673 0.2%SRW 03/02/21 OB-B 491.67 492 0.1%530.67 530 -0.1%671.67 672 0.0%SRW 03/02/21 OB-5 491.67 492 0.1%530.67 530 -0.1%671.67 670 -0.2%SRW 03/02/21 OB-C 491.67 492 0.1%530.67 529 -0.3%671.67 674 0.3%SRW 03/03/21 OB-6 491.67 493.67 0.4%524.67 525 0.1%671.67 669.67 -0.3%SMilo 02/22/21 OB-7 491.67 494.67 0.6%524.67 525 0.1%671.67 669.67 -0.3%SMilo 02/22/21 OB-E 491.67 492 0.1%530.67 529 -0.3%671.67 671.67 0.0%SRW 03/03/21 OB-10 491.67 492 0.1%530.67 531 0.1%671.67 670 -0.2%SRW 03/03/21 OB-11 491.67 495 0.7%530.67 532 0.3%671.67 672 0.0%SRW 03/03/21 OB-12 491.67 493 0.3%530.67 531 0.1%671.67 671 -0.1%SRW 03/03/21 Reference Thermocouple: Fluke S/N: 83450033 or S/N 90460057 traceable to the Untied States National Institute of Standards and Technology *Acceptable Deviation: 1.5% ID Number Ice Bath Ambient Hot Water Bath Deviation*Deviation*Deviation*Technician Date Performed C:\Stack\Projects\Chemours\Fayetteville\March 2021\PPA Report\App E\Copy of Init OB Cal 03032021.xls\2020   DOCUMENT TITLEInitial Impinger Outlet Thermocouple CalibrationReference ThermocoupleReference ThermocoupleReference ThermocoupleTemperature (oRk)Temperature (oRk)Temperature (oRk)Temperature (oRk)Temperature (oRk)Temperature (oRk)IO-1 494.17 493.87 -0.1% 524.37 523.17 -0.2% 672.17 672.67 0.1% SM 03/16/21IO-2 493.67 493.87 0.0% 524.57 523.17 -0.3% 671.77 672.67 0.1% SM 03/16/21IO-3 493.57 493.87 0.1% 521.37 523.17 0.3% 671.77 672.67 0.1% SM 03/16/21IO-4 493.97 493.87 0.0% 524.37 523.17 -0.2% 671.17 672.67 0.2% SM 03/16/21IO-5 493.77 493.87 0.0% 524.07 523.17 -0.2% 672.37 672.67 0.0% SM 03/16/21IO-6 493.97 493.87 0.0% 522.97 523.17 0.0% 670.77 672.67 0.3% SM 03/16/21IO-7 493.17 493.87 0.1% 524.37 523.17 -0.2% 671.37 672.67 0.2% SM 03/16/21IO-8 494.37 493.87 -0.1% 523.67 523.17 -0.1% 670.37 672.67 0.3% SM 03/16/21IO-9IO-10 493.77 493.87 0.0% 524.27 523.17 -0.2% 671.27 672.67 0.2% SM 03/16/21IO-11 494.37 493.87 -0.1% 524.37 523.17 -0.2% 672.27 672.67 0.1% SM 03/16/21IO-12 493.77 493.87 0.0% 522.17 523.17 0.2% 671.47 672.67 0.2% SM 03/16/21IO-13SM 03/16/21IO-14 493.87 493.87 0.0% 524.37 523.17 -0.2% 670.87 672.67 0.3% SM 03/16/21IO-15 494.17 493.87 -0.1% 524.37 523.17 -0.2% 671.47 672.67 0.2% SM 03/16/21IO-16 494.37 493.87 -0.1% 524.37 523.17 -0.2% 671.07 672.67 0.2% SM 03/16/21IO-17 493.37 493.87 0.1% 522.17 670.97IO-18 494.17 493.87 -0.1% 524.37 523.17 -0.2% 671.27 672.67 0.2% SM 03/16/21IO-19 493.97 493.87 0.0% 524.77 523.17 -0.3% 672.97 672.67 0.0% SM 03/16/21Reference Thermocouple: Fluke S/N: 83450033 or S/N 90460057 traceable to the Untied States National Institute of Standards and Technology*Acceptable Deviation: 1.5%TechnicianDate PerformedID NumberIce Bath Ambient Hot Water BathDeviation* Deviation* Deviation*V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Initial Calibrations\Impinger Outlets\2021\2021 Init I.O. Cal.xlsx\2019 DOCUMENT TITLE Initial Sample Probe Calibration Form Probe ID Date Technician Is the Pitot Level and Perpindicular?Yes Is There any Obstruction?No Is the Pitot Damaged No α1 (-10o = α1 = + 10o)1 α2 (-10o = α2 = + 10o)0 ß1 (-5o = ß1 = + 5o)1 ß2 (-5o = ß2 = + 5o)1 γ 1 Θ 0 z = A Tan γ (< 0.125")0.011 W = A Tan Θ (< 0.03125")0.0000 Dt (3/16 = Dt = 3/8")0.252 A 0.655 A/2Dt (1.05 = PA/Dt = 1.5)1.300 Source: Quality Assurance Handbook for Air Pollution Measurement Systems: Volume III, Stationary Source-Specific Methods. EPA/600/R-94/038c, September 30, 1994 Verification of "S" Type Pitot, Thermocouple and Nozzle Placement Does X Exceed 0.75 inches?Yes Does Y Exceed 3 inches?NA Thermocouple Calibration 1 2 3 1 2 3 1 2 3Reference Temp 492 492 492 526 526 526 672 672 672 Thermocouple Temp 492 492 492 525 525 525 672 672 672 Difference (%)0.0 0.0 0.0 -0.2 -0.2 -0.2 0.0 0.0 0.0 Temperature values must be within 1.5% of reference temperature I certify that the probe ID meets or exceeds all specifications, criteria and/or applicable design features and is herby assigned a pitot tube calibration factor CP of 0.84. Certified By:Date:S. Waters 01/28/21 Ambient OR Boiling Water OR S. Waters P4-1/TC-7C "S" Type Pitot Calibration P4-1/TC-7C 01/28/21 Ice Bath OR C:\Stack\Projects\Chemours\Fayetteville\March 2021\PPA Report\App E\2021 Initial Probe Cal P4-1.xlsx\Initial DOCUMENT TITLE Initial Sample Probe Calibration Form Probe ID Date Technician Is the Pitot Level and Perpindicular?Yes Is There any Obstruction?No Is the Pitot Damaged No a1 (-10o = a1 = + 10o)2 a2 (-10o = a2 = + 10o)1 ß1 (-5o = ß1 = + 5o)1 ß2 (-5o = ß2 = + 5o)1 g 1 Q 0 z = A Tan g (< 0.125")0.011 W = A Tan Q (< 0.03125")0.0000 Dt (3/16 = Dt = 3/8")0.251 A 0.650 A/2Dt (1.05 = PA/Dt = 1.5)1.295 Source: Quality Assurance Handbook for Air Pollution Measurement Systems: Volume III, Stationary Source-Specific Methods. EPA/600/R-94/038c, September 30, 1994 Verification of "S" Type Pitot, Thermocouple and Nozzle Placement Does X Exceed 0.75 inches?Yes Does Y Exceed 3 inches?NA Thermocouple Calibration 1 2 3 1 2 3 1 2 3Reference Temp 492.3 492.3 492.3 533.4 533.4 533.4 671.5 671.5 671.5 Thermocouple Temp 492.9 492.8 492.8 532.7 532.6 532.7 673.1 673 673 Difference (%)0.1 0.1 0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 Temperature values must be within 1.5% of reference temperature I certify that the probe ID meets or exceeds all specifications, criteria and/or applicable design features and is herby assigned a pitot tube calibration factor CP of 0.84. Certified By:Date:P. Grady 06/16/20 Ambient OR Boiling Water OR P. Grady P4-2/TC-5D "S" Type Pitot Calibration P4-2/TC-5D 06/16/20 Ice Bath OR V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Initial Calibrations\Probes and Pitots\2020 Initial Cals\4'\2020 Initial Probe Cal P4-2.xlsx\Initial Post Test Equipment Calibration Data DOCUMENT TITLE POST TEST DRY GAS METER CALIBRATION INITIAL FINAL AVG (Pbar) DATE:03/17/21 METER BOX #:3 BAROMETRIC PRESSURE (in Hg):29.99 29.99 29.99 TECHNICIAN:S.Milo CRITICAL ORIFICE SET SERIAL #:1393 K'TESTED TEMPERATURES °F ELAPSED Y % Diff FACTOR VACUUM DGM READINGS (FT3)AMBIENT DGM INLET DGM OUTLET DGM TIME (MIN)DGM DH (1)(2)(3)to ORIFICE #RUN #(AVG)(in Hg)INITIAL FINAL NET (Vm)INITIALFINALINITIALFINAL AVG q (in H2O)Vm (STD)Vcr (STD)Y Average Y DH@ 1 2 3 AVG = 1 0.4961 21 273.710 280.129 6.419 68 67 68 66 66 66.75 10.00 1.2 6.4695 6.4767 1.001 0.18 1.62 18 2 0.4961 21 280.129 287.222 7.093 68 68 69 67 67 67.75 11.00 1.2 7.1352 7.1244 0.998 -0.09 1.62 3 0.4961 21 287.222 293.667 6.445 70 69 70 67 68 68.5 10.00 1.2 6.4742 6.4645 0.999 -0.09 1.62 AVG = 0.999 1 2 3 AVG = AVERAGE DRY GAS METER CALIBRATION FACTOR, Y = PRE-DETERMINED DRY GAS METER CALIBRATION FACTOR, Y = PERCENT DIFFERENCE = 0.999 1.002 -0.3 V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Post Test Calibrations\Meter Boxes\2021\MB 3\MB 3 Post Cal 03172021.xlsx\Sheet1 DOCUMENT TITLE POST TEST DRY GAS METER CALIBRATION INITIAL FINAL AVG (Pbar) DATE:03/17/21 METER BOX #:5 BAROMETRIC PRESSURE (in Hg):29.99 29.99 29.99 TECHNICIAN:S. Milo CRITICAL ORIFICE SET SERIAL #:1393 K'TESTED TEMPERATURES °F ELAPSED Y % Diff FACTOR VACUUM DGM READINGS (FT3)AMBIENT DGM INLET DGM OUTLET DGM TIME (MIN)DGM DH (1)(2)(3)to ORIFICE #RUN #(AVG)(in Hg)INITIAL FINAL NET (Vm)INITIALFINALINITIALFINAL AVG q (in H2O)Vm (STD)Vcr (STD)Y Average Y DH@ 1 2 3 AVG = 1 0.4961 21 333.449 339.942 6.493 71 66 67 63 64 65 10.00 1.4 6.5691 6.4584 0.983 0.06 1.91 18 2 0.4961 21 339.942 346.462 6.520 71 67 70 64 65 66.5 10.00 1.4 6.5776 6.4584 0.982 -0.07 1.90 3 0.4961 21 346.462 352.996 6.534 72 70 71 66 67 68.5 10.00 1.4 6.5668 6.4523 0.983 0.00 1.90 AVG = 0.983 1 2 3 AVG = AVERAGE DRY GAS METER CALIBRATION FACTOR, Y = PRE-DETERMINED DRY GAS METER CALIBRATION FACTOR, Y = PERCENT DIFFERENCE = 0.983 0.991 -0.9 V:\Office-Ops\ENV\Div01\Source Testing\Equipment Calibration Data\Post Test Calibrations\Meter Boxes\2021\MB 5\MB 5 Post Cal 03172021.xlsx\Sheet1