2019.06.18_CCO.p8_Fluoromonomers Manufacturing Process VE South Stack Emissions Test Report

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
FLUOROMONOMERS
MANUFACTURING PROCESS
VE SOUTH STACK
EMISSIONS TEST REPORT
TEST DATES: 22-23 MAY 2019
THE CHEMOURS COMPANY
FAYETTEVILLE, NORTH CAROLINA
Prepared for:
THE CHEMOURS COMPANY
22828 NC Hwy 87 W
Fayetteville, North Carolina 28306
Prepared by:
WESTON SOLUTIONS, INC.
1400 Weston Way
P.O. Box 2653
West Chester, Pennsylvania 19380
June 2019
W.O. No. 15418.002.014
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TABLE OF CONTENTS
Section Page
1. INTRODUCTION..............................................................................................................1
1.1 FACILITY AND BACKGROUND INFORMATION ...........................................1 
1.2 TEST OBJECTIVES ...............................................................................................1 
1.3 TEST PROGRAM OVERVIEW .............................................................................1 
2. SUMMARY OF TEST RESULTS ...................................................................................4 
3.PROCESS DESCRIPTIONS ............................................................................................5 
3.1 FLUOROMONOMERS ..........................................................................................5 
3.2 PROCESS OPERATIONS AND PARAMETERS .................................................5 
4.DESCRIPTION OF TEST LOCATIONS .......................................................................6 
4.1 VE SOUTH STACK ................................................................................................6 
5. SAMPLING AND ANALYTICAL METHODS .............................................................8 
5.1 STACK GAS SAMPLING PROCEDURES ...........................................................8 
5.1.1 Pre-Test Determinations ...........................................................................8 
5.2 STACK PARAMETERS .........................................................................................8 
5.2.1 EPA Method 0010.....................................................................................8 
5.2.2 EPA Method 0010 Sample Recovery .....................................................10 
5.2.3 EPA Method 0010 Sample Analysis.......................................................13 
5.3 GAS COMPOSITION ...........................................................................................14 
6.DETAILED TEST RESULTS AND DISCUSSION .....................................................15 
APPENDIX A PROCESS OPERATIONS DATA
APPENDIX B RAW AND REDUCED TEST DATA
APPENDIX C LABORATORY ANALYTICAL REPORT
APPENDIX D SAMPLE CALCULATIONS
APPENDIX E EQUIPMENT CALIBRATION RECORDS
APPENDIX F LIST OF PROJECT PARTICIPANTS
IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019 ii
LIST OF FIGURES
Title Page
Figure 4-1 VE South Stack Test Port and Traverse Point Location .............................................. 7 
Figure 5-1 EPA Method 0010 Sampling Train ............................................................................... 9 
Figure 5-2 HFPO Dimer Acid Sample Recovery Procedures for Method 0010 ......................... 12 
IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019 iii
LIST OF TABLES
Title Page
Table 1-1 Sampling Plan for VE South Stack ................................................................................ 3 
Table 2-1 Summary of HFPO Dimer Acid Test Results ............................................................... 4 
Table 6-1 Summary of HFPO Dimer Acid Test Data and Test Results VE South Stack ............ 16 

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019 1
1. INTRODUCTION
1.1 FACILITY AND BACKGROUND INFORMATION
The Chemours Fayetteville Works (Chemours) is located in Bladen County, North Carolina,
approximately 10 miles south of the city of Fayetteville. The Chemours operating areas on the
site include the Fluoromonomers, IXM and Polymer Processing Aid (PPA) manufacturing areas,
Wastewater Treatment, and Powerhouse.
Chemours contracted Weston Solutions, Inc. (Weston) to perform HFPO Dimer Acid emission
testing on the Vinyl Ethers (VE) South Stack. Testing was performed on 22 and 23 May 2019
and generally followed the “Emissions Test Protocol” reviewed and approved by the North
Carolina Department of Environmental Quality (NCDEQ). This report provides the results from
the emission test program.
1.2 TEST OBJECTIVES
The specific objectives for this test program were as follows:
 Measure the emissions concentrations and mass emissions rates of HFPO Dimer Acid
from the VE South stack which is located in the Fluoromonomers process area.
 Monitor and record process data in conjunction with the test program.
 Provide representative emissions data.
1.3 TEST PROGRAM OVERVIEW
During the emissions test program, the concentrations and mass emissions rates of HFPO Dimer
Acid were measured on the VE South Stack.
Table 1-1 provides a summary of the test locations and the parameters that were measured along
with the sampling/analytical procedures that were followed. Section 2 provides a summary of
test results. A description of the process is provided in Section 3. Section 4 provides a
description of the test location. The sampling and analytical procedures are provided in Section
5. Detailed test results and discussion are provided in Section 6.

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019 2
Appendix C includes the summary reports for the laboratory analytical results. The full
laboratory data package is provided in electronic format and on CD with each hard copy.

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Table 1-1
Sampling Plan for VE South Stack
Sampling Point & Location VE South Stack
Number of Tests: 3 (VE South Stack)
Parameters To Be Tested: HFPO Dimer
Acid
(HFPO-DA)
Volumetric
Flow Rate and
Gas Velocity
Carbon
Dioxide
Oxygen Water Content
Sampling or Monitoring Method EPA M-0010 EPA M1, M2,
M3A, and M4
in conjunction
with M-0010
tests
EPA M3/3A EPA M4 in
conjunction
with M-0010
tests
Sample Extraction/ Analysis Method(s): LC/MS/MS NA6 NA NA
Sample Size > 1m3 NA NA NA NA
Total Number of Samples Collected1 3 3 3 3 3
Reagent Blanks (Solvents, Resins)1 1 set 0 0 0 0
Field Blank Trains1 1 per source 0 0 0 0
Proof Blanks1 1 per train 0 0 0 0
Trip Blanks1,2 1 set 0 0 0
Lab Blanks 1 per fraction3 0 0 0 0
Laboratory or Batch Control Spike Samples
(LCS) 1 per fraction3 0 0 0 0
Laboratory or Batch Control Spike Sample
Duplicate (LCSD) 1 per fraction3 0 0 0 0
Media Blanks 1 set4 0 0 0 0
Isotope Dilution Internal Standard Spikes Each sample 0 0 0 0
Total No. of Samples 75 3 3 3 3
Key:
1 Sample collected in field.
2 Trip blanks include one XAD-2 resin module and one methanol sample per sample shipment.
3 Lab blank and LCS/LCSD includes one set per analytical fraction (front half, back half and condensate).
4 One set of media blank archived at laboratory at media preparation.
5 Actual number of samples collected in field.
6 Not applicable.

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2.SUMMARY OF TEST RESULTS
Three tests were performed on the VE South stack. Table 2-1 provides a summary of the HFPO
Dimer Acid emission test results. Detailed test results summaries are provided in Section 6.
It is important to note that emphasis is being placed on the characterization of the emissions
based on the stack test results. Research conducted in developing the protocol for stack testing
HFPO Dimer Acid Fluoride, HFPO Dimer Acid Ammonium Salt and HFPO Dimer Acid
realized that the resulting testing, including collection of the air samples and extraction of the
various fraction of the sampling train, would result in all three compounds being expressed as
simply the HFPO Dimer Acid. However, it should be understood that the total HFPO Dimer
Acid results provided on Table 2-1 and in this report include a percentage of each of the three
compounds.
Table 2-1
Summary of HFPO Dimer Acid Test Results
Source Run No. Emission Rates
lb/hr g/sec
VE South Stack
1 3.79E-03 4.78E-04
2 1.19E-03 1.50E-04
3 1.56E-03 1.96E-04
Average 2.18E-03 2.75E-04

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3. PROCESS DESCRIPTIONS
The Fluoromonomers area is included in the scope of this test program.
3.1 FLUOROMONOMERS
These facilities produce a family of fluorocarbon compounds used to produce Chemours
products such as Teflon® Polymers and Viton®, as well as sales to outside customers.
The VE South Waste Gas Scrubber is vented to the process stack (NEP-Hdr2). In addition, the
following building air systems are vented to this stack:
 RV Catch Pots
 Tower HVAC
 Nitrogen Supply to Catch Tanks
 Catalyst Feed Tank Pot Charge Vent
3.2 PROCESS OPERATIONS AND PARAMETERS
Source Operation/Product Batch or Continuous
VE South PMVE/PEVE Semi-continuous – Condensation is continuous, Two Agitated Bed Reactors are batch for 30-40 mins at end of each run, Refining (ether column) is batch
During the test program, the following parameters were monitored by Chemours and are
included in Appendix A.
 Fluoromonomers Processes
o VE South Waste Gas Scrubber
 Caustic recirculation flow rate 

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019 6
4.DESCRIPTION OF TEST LOCATIONS
4.1 VE SOUTH STACK
Two 6-inch ID test ports are installed on the 42-inch ID steel stack. The ports are placed 150
inches (3.6 diameters) from the location where the waste gas scrubber vent enters the stack and
20 feet (5.7 diameters) from the stack exit.
Per EPA Method 1, a total of 24 traverse points (12 per axis) were used for M0010 isokinetic
sampling. It should be noted that near the port locations are a number of small ducts leading to
the stack. These are catch pots which, under normal operation, do not discharge to the stack.
They are used to vent process gas to the stack in the event of a process upset. For the purpose of
test port location, and given the fact that there is no flow from these catch pots, they are not
considered a flow contributor or a disturbance.
See Figure 4-1 for a schematic of the test port and traverse point locations.
Note: All measurements at the test location were confirmed prior to sampling.
42 "
TRAVERSE
POINT
NUMBER
DISTANCE FROM
INSIDE NEAR
WALL (INCHES)
1
2
3
4
5
6
7
8
9
10
11
12
FIGURE 4-1
VE SOUTH STACK TEST PORT AND
TRAVERSE POINT LOCATION
IASDATA\CHEMOURS\15418.002.014\FIGURE 4-1 VE SOUTH SCRUBBER STACK7
20 '
150 "
ID
FAN
ROOF
LINE
CATCH
POT
CATCH
POTS
WASTE
GAS
SCRUBBER
VENT
DRAWING NOT TO SCALE
1
2 7/8
5
7 3/8
10 1/2
15
27
31 1/2
34 5/8
37
39 1/8
41
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5. SAMPLING AND ANALYTICAL METHODS
5.1 STACK GAS SAMPLING PROCEDURES
The purpose of this section is to describe the stack gas emissions sampling train and to provide
details of the stack sampling and analytical procedures utilized during the emissions test
program.
5.1.1 Pre-Test Determinations
Preliminary test data were obtained at the test location. Stack geometry measurements were
measured and recorded, and traverse point distances verified. A preliminary velocity traverse
was performed utilizing a calibrated S-type pitot tube and an inclined manometer to determine
velocity profiles. Flue gas temperatures were observed with a calibrated direct readout panel
meter equipped with a chromel-alumel thermocouple. Preliminary water vapor content was
estimated by wet bulb/dry bulb temperature measurements.
A check for the presence or absence of cyclonic flow was previously conducted at the test
location. The cyclonic flow check was negative (< 20°) verifying that the source was acceptable
for testing.
Preliminary test data was used for nozzle sizing and sampling rate determinations for isokinetic
sampling procedures.
Calibration of probe nozzles, pitot tubes, metering systems, and temperature measurement
devices was performed as specified in Section 5 of EPA Method 5 test procedures.
5.2 STACK PARAMETERS
5.2.1 EPA Method 0010
The sampling train utilized to perform the HFPO Dimer Acid sampling was an EPA Method
0010 train (see Figure 5-1). The Method 0010 consisted of a borosilicate nozzle that attached
directly to a heated borosilicate probe. In order to minimize possible thermal degradation of the
HFPO Dimer Acid, the probe and particulate filter were heated above stack temperature to
minimize water vapor condensation before the filter. The probe was connected directly to a
heated borosilicate filter holder containing a solvent extracted glass fiber filter.
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A section of borosilicate glass or flexible polyethylene tubing connected the filter holder exit to a
Grahm (spiral) type ice water-cooled condenser, an ice water-jacketed sorbent module containing
approximately 40 grams of XAD-2 resin. The XAD-2 resin tube was equipped with an inlet
temperature sensor. The XAD-2 resin trap was followed by a condensate knockout impinger and
a series of two impingers that contained 100 mL of high-purity distilled water. The train also
included a second XAD-2 resin trap behind the impinger section to evaluate possible sampling
train breakthrough. Each XAD-2 resin trap was connected to a 1-liter condensate knockout trap.
The final impinger contained 300 grams of dry pre-weighed silica gel. All impingers and the
condensate traps were maintained in an ice bath. Ice water was continuously circulated in the
condenser and the XAD-2 module to maintain method-required temperature. A control console
with a leakless vacuum pump, a calibrated orifice, and dual inclined manometers was connected
to the final impinger via an umbilical cord to complete the sample train.
HFPO Dimer Acid Fluoride (CAS No. 2062-98-8) that is present in the stack gas is expected to
be captured in the sampling train along with HFPO Dimer Acid (CAS No. 13252-13-6). HFPO
Dimer Acid Fluoride underwent hydrolysis instantaneously in water in the sampling train and
during the sample recovery step, and was converted to HFPO Dimer Acid such that the amount
of HFPO Dimer Acid emissions represented a combination of both HFPO Dimer Acid Fluoride
and HFPO Dimer Acid.
During sampling, gas stream velocities were measured by attaching a calibrated S-type pitot tube
into the gas stream adjacent to the sampling nozzle. The velocity pressure differential was
observed immediately after positioning the nozzle at each traverse point, and the sampling rate
adjusted to maintain isokineticity at 100% ± 10. Flue gas temperature was monitored at each
point with a calibrated panel meter and thermocouple. Isokinetic test data was recorded at each
traverse point during all test periods, as appropriate. Leak checks were performed on the
sampling apparatus according to reference method instructions, prior to and following each run,
component change (if required) or during midpoint port changes.
5.2.2 EPA Method 0010 Sample Recovery
At the conclusion of each test, the sampling train was dismantled, the openings sealed, and the
components transported to the field laboratory trailer for recovery.
A consistent procedure was employed for sample recovery:

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1. The two XAD-2 covered (to minimize light degradation) sorbent modules (1 and 2) were
sealed and labeled.

2. The glass fiber filter(s) were removed from the holder with tweezers and placed in a
polyethylene container along with any loose particulate and filter fragments.

3. The particulate adhering to the internal surfaces of the nozzle, probe and front half of the
filter holder were rinsed with a solution of methanol and ammonium hydroxide into a
polyethylene container while brushing a minimum of three times until no visible
particulate remained. Particulate adhering to the brush was rinsed with methanol/
ammonium hydroxide into the same container. The container was sealed.

4. The volume of liquid collected in the first condensate trap was measured, the value
recorded, and the contents poured into a polyethylene container.

5. All train components between the filter exit and the first condensate trap were rinsed with
methanol/ammonium hydroxide. The solvent rinse was placed in a separate polyethylene
container and sealed.

6. The volume of liquid in impingers one and two, and the second condensate trap, were
measured, the values recorded, and the sample was placed in the same container as Step 4
above, then sealed.

7. The two impingers, condensate trap, and connectors were rinsed with methanol/
ammonium hydroxide. The solvent sample was placed in a separate polyethylene
container and sealed.

8. The silica gel in the final impinger was weighed and the weight gain value recorded.

9. Site (reagent) blank samples of the methanol/ammonium hydroxide, XAD resin, filter
and distilled water were retained for analysis.

Each container was labeled to clearly identify its contents. The height of the fluid level was
marked on the container of each liquid sample to provide a reference point for a leakage check
during transport. All samples were maintained cool.
During the VE South test campaign, a Method 0010 blank train was set up near the test location,
leak-checked and recovered along with the respective sample train. Following sample recovery,
all samples were transported to TestAmerica Laboratories, Inc. (TestAmerica) for sample
extraction and analysis.
See Figure 5-2 for a schematic of the Method 0010 sample recovery process.
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5.2.3 EPA Method 0010 – Sample Analysis
Method 0010 sampling trains resulted in four separate analytical fractions for HFPO Dimer Acid
analysis according to SW-846 Method 3542:
 Front-half Composite—comprised of the particulate filter, and the probe, nozzle, and
front-half of the filter holder solvent rinses;
 Back-half Composite—comprised of the first XAD-2 resin material and the back-half of
the filter holder with connecting glassware solvent rinses;
 Condensate Composite—comprised of the aqueous condensates and the contents of
impingers one and two with solvent rinses;
 Breakthrough XAD-2 Resin Tube—comprised of the resin tube behind the series of
impingers.
The second XAD-2 resin material was analyzed separately to evaluate any possible sampling
train HFPO-DA breakthrough.
The front-half and back-half composites and the second XAD-2 resin material were placed in
polypropylene wide-mouth bottles and tumbled with methanol containing 5% NH4OH for 18
hours. Portions of the extracts were processed analytically for the HFPO dimer acid by liquid
chromatography and duel mass spectroscopy (HPLC/MS/MS). The condensate composite was
concentrated onto a solid phase extraction (SPE) cartridge followed by desorption from the
cartridge using methanol. Portions of those extracts were also processed analytically by
HPLC/MS/MS.
Samples were spiked with isotope dilution internal standard (IDA) at the commencement of their
preparation to provide accurate assessments of the analytical recoveries. Final data was corrected
for IDA standard recoveries.
TestAmerica developed detailed procedures for the sample extraction and analysis for HFPO
Dimer Acid. These procedures were incorporated into the test protocol.

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5.3 GAS COMPOSITION
The Weston mobile laboratory equipped with instrumental analyzers was used to measure carbon
dioxide (CO2) and oxygen (O2) concentrations. An integrated gas sample was collected from the
exhaust of the Method 0010 sample console.
The oxygen and carbon dioxide content of the stack gas was measured according to EPA Method
3/3A procedures. A Servomex Model 4900 analyzer (or equivalent) was used to measure oxygen
content. A Servomex Model 4900 analyzer (or equivalent) was used to measure carbon dioxide
content of the stack gas. Both analyzers were calibrated with EPA Protocol gases prior to the
start of the test program and performance was verified by calibration checks before and after
each test run.

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6. DETAILED TEST RESULTS AND DISCUSSION
Preliminary testing and the associated analytical results required significant sample dilution to
bring the HFPO Dimer Acid concentration within instrument calibration; therefore, sample times
and sample volumes were reduced for the formal test program. This was approved by the North
Carolina Department of Environmental Quality (NCDEQ).
Each test was a minimum of 96 minutes in duration. A total of three test runs were performed on
the VE South stack. During Run 3, a power outage occurred for approximately one minute and
then the test run was resumed without further incident.
Table 6-1 provides detailed test data and test results for the VE South stack.
The Method 3A sampling during all tests indicated that the O2 and CO2 concentrations were at
ambient air levels (20.9% O2, 0% CO2), therefore, 20.9% O2 and 0% CO2 values were used in all
calculations.

TABLE 6-1
Test Data
Run number 1 2 3
Location VE South Stack VE South Stack VE South Stack
Date 05/22/19 05/23/19 05/23/19
Time period 1341-1529 1042-1230 1341-1536
SAMPLING DATA:
Sampling duration, min. 96.0 96.0 96.0
Nozzle diameter, in. 0.300 0.300 0.300
Cross sectional nozzle area, sq.ft. 0.000491 0.000491 0.000491
Barometric pressure, in. Hg 30.20 30.28 30.28
Avg. orifice press. diff., in H2O 1.47 1.27 1.53
Avg. dry gas meter temp., deg F 84.0 93.1 101.0
Avg. abs. dry gas meter temp., deg. R 544 553 561
Total liquid collected by train, ml 41.1 27.6 47.1
Std. vol. of H2O vapor coll., cu.ft.1.9 1.3 2.2
Dry gas meter calibration factor 1.0107 1.0107 1.0107
Sample vol. at meter cond., dcf 60.826 57.096 63.015
Sample vol. at std. cond., dscf (1)60.423 55.898 60.861
Percent of isokinetic sampling 103.5 97.6 103.1
GAS STREAM COMPOSITION DATA:
CO2, % by volume, dry basis 0.0 0.0 0.0
O2, % by volume, dry basis 20.9 20.9 20.9
N2, % by volume, dry basis 79.1 79.1 79.1
Molecular wt. of dry gas, lb/lb mole 28.84 28.84 28.84
H20 vapor in gas stream, prop. by vol.0.031 0.023 0.035
Mole fraction of dry gas 0.969 0.977 0.965
Molecular wt. of wet gas, lb/lb mole 28.50 28.59 28.45
GAS STREAM VELOCITY AND VOLUMETRIC FLOW DATA:
Static pressure, in. H2O 0.55 0.51 0.50
Absolute pressure, in. Hg 30.24 30.32 30.32
Avg. temperature, deg. F 87 90 94
Avg. absolute temperature, deg.R 547 550 554
Pitot tube coefficient 0.84 0.84 0.84
Total number of traverse points 24 24 24
Avg. gas stream velocity, ft./sec.21.9 21.3 22.4
Stack/duct cross sectional area, sq.ft.9.62 9.62 9.62
Avg. gas stream volumetric flow, wacf/min.12620 12307 12951
Avg. gas stream volumetric flow, dscf/min.11918 11697 12055
(1)Standard conditions = 68 deg. F. (20 deg. C.) and 29.92 in Hg (760 mm Hg)
CHEMOURS - FAYETTEVILLE, NC
SUMMARY OF HFPO DIMER ACID TEST DATA AND TEST RESULTS
VE SOUTH STACK
6/5/2019 2:18 PM
16
052219 VE South stack
TEST DATA
Run number 1 2 3
Location VE South Stack VE South Stack VE South Stack
Date 05/22/19 05/23/19 05/23/19
Time period 1341-1529 1042-1230 1341-1536
LABORATORY REPORT DATA, ug.
HFPO Dimer Acid 145.4000 42.9100 59.5300
EMISSION RESULTS, ug/dscm.
HFPO Dimer Acid 84.96 27.10 34.53
EMISSION RESULTS, lb/dscf.
HFPO Dimer Acid 5.31E-09 1.69E-09 2.16E-09
EMISSION RESULTS, lb/hr.
HFPO Dimer Acid 3.79E-03 1.19E-03 1.56E-03
EMISSION RESULTS, g/sec.
HFPO Dimer Acid 4.78E-04 1.50E-04 1.96E-04
TABLE 6-1 (cont.)
CHEMOURS - FAYETTEVILLE, NC
SUMMARY OF HFPO DIMER ACID TEST DATA AND TEST RESULTS
VE SOUTH STACK
6/5/2019 2:18 PM
17
052219 VE South stack

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APPENDIX A
PROCESS OPERATIONS DATA

18
Date: 5/22/2019TimeStack TestingVES ProductVES PrecursorVES Condensation (HFPO)VES ABR (East)VES ABR (West)VES RefiningVES WGS Recirculation FlowDimer ISO ventingDate: 5/23/2019TimeStack TestingVES ProductVES PrecursorVES Condensation (HFPO)VES ABR (East)VES ABR (West)VES RefiningVES WGS Recirculation FlowDimer ISO venting18,500 kg/hPM/PEBurnout1400 1500 1600 1700RUN 2 ‐ 1042‐1230 RUN 3 ‐ 1341‐15368009001000110012001300Burnout18,500 kg/h16001700RUN 1 ‐ 1341‐1529PM/PE10001100120013001400150019

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
APPENDIX B
RAW AND REDUCED TEST DATA

20
21
CHEMOURS - FAYETTEVILLE, NC
INPUTS FOR HFPO DIMER ACID CALCULATIONS
VE SOUTH STACK
Test Data
Run number 1 2 3
Location VE South Stack VE South Stack VE South Stack
Date 05/22/19 05/23/19 05/23/19
Time period 1341-1529 1042-1230 1341-1536
Operator JDO/KA JDO/KA JDO/KA
Inputs For Calcs.
Sq. rt. delta P 0.38206 0.37276 0.38979
Delta H 1.4679 1.2708 1.5333
Stack temp. (deg.F)87.3 89.9 94.3
Meter temp. (deg.F)84.0 93.1 101.0
Sample volume (act.)60.826 57.096 63.015
Barometric press. (in.Hg)30.20 30.28 30.28
Volume H2O imp. (ml)26.0 12.3 27.0
Weight change sil. gel (g)15.1 15.3 20.1
% CO2 0.0 0.0 0.0
% O2 20.9 20.9 20.9
% N2 79.1 79.1 79.1
Area of stack (sq.ft.)9.620 9.620 9.620
Sample time (min.)96.0 96.0 96.0
Static pressure (in.H2O)0.55 0.51 0.50
Nozzle dia. (in.)0.300 0.300 0.300
Meter box cal.1.0107 1.0107 1.0107
Cp of pitot tube 0.84 0.84 0.84
Traverse points 24 24 24
6/5/2019 2:20 PM 052219 VE South stack22
ISOHINETIC FIELD DATA SHEET EPA Method 0010 -
client chemours Stack Conditions Meter Box ID
W.O.#15418.0~2.Q14.6001 Assumed Actual Meter Box Y
Project ID Chemours %Moisture a ~ ~Meter Box Del H
Mode/Source ID VE South -Scrubber Impinger Vol (ml)Probe ID /Length
Samp. Loc. ID STK Silica gel (g)Probe Material
Run No.ID 1 CO2, % by Vol ~~Pitot / Thermocrouple ID
Test Method ID M0010 02, °/ by Vol ~ ` ~Pitot Ccefflcfent
Date ID 21MAY2019 Temperature (°F)Noale ID —~~
Source/Location VE SouHi S~C1c Meter Temp ("F)(NonJe Measurements _~~0
Sample Date ry 2 tatic Press (in HZO) ' , 5 ~Avg NoaJe Dfa (in)
Baro. Press (in Hg)Area of Stack (ftZ)x1~
Operator Ambient Temp (°F) Q Sample Tfine _~!~ {,
Total Traverse Pts
--'f~l i y ~~~
~~
J~ ~ ~ A ;' D~fta"P Av DejtakJ / ToTa~~90 m'e " qv~ ~ V
TJ~ ~i`
¨ ~ Q~ V 0
~ Avg Sgr~~@Ita P Avg Sgrt Del H Comme s:J~~ ~'~~ ~~~1 .Lsn'.~D~,°L~So
Dimer Acid ~ Page ~ or ~,
~~ KFactor /4~,p -~
Initial Mira-Point Final
Sample Train (k3)
Leak Check Qa (in Hg)
Pitot leak check good
Pltot Inspectlon good
Method 3 System good
,~~~~~~r~,,,~s~~r
~`='~`' ~[~.~■r~~r~mr~yc~v ~ w Temp Check re- es Ted
~/ Meter Box Temp
Reference Temp
Pass/Fail (+/- 2°~ /Fail Pass /Fall
Temp Change Response ~ r~o y~ / ~
S ~ «~~. ~ i v- i ~~ ~ i v i i 1r EPA Method 0010 from EPA SW-846~ a 3 a ~~ l ~~ ~ ~ ~ ~8 ~~s~~-~~~ ~a ~ ~,~o.~~ 3 ~~ ~v~~,23
ISOHINETIC FIELD DATA SHEET EPA Method 0010 -cuent cnsmours Stack Conditions Meter Box ID
W.O.# 15g18,Q02,01d.DQ01 Assumed Actual Meter Box Y
Protect ID Chemours %Moisture ^Meter Box Del H -~Mode/Source ID VE South -Scrubber Impinger Vol (ml)Probe ID /Length 'Sample Train (ft')Samp. Loc. ID STK Silica gel (g)Probe Material Leak Check @ (in Hg)Run No.ID 2 CO2, % by Vol Pitot /Thermocouple I~,,,,Pitot leak check goodTest Method ID M0010 02, % by Vol ~ Vy PkoYCoefficient Pitot Inspectlon goodDate ID ~2'fMAY2019 Temperature (°F); Noale ID Metlwd 3 System good
Initial Mid-Point Final~~`}/'D 7
yes no yes / na ~e `11 no
na yes / no / no
/ no yes / no e / noSource/Location V Soufti Sick Meter Temp (F)Noale Measurements ~ J Temp Check Pre-Test Set Post-Test SetSample Date Static Press (In H2O)~ Avg NoaJe Dla (in)r Q Meter Box Temp ~3 "''Baro. Press (In Hg)
Operator
y
'Ambient Temp (°F)
Area of Stack (ft2)
~j '~ Sample Time
Reference Temp
Pass/Fail (+/- p°~ /Fey Pass / FaU
Total Traverse Pts Temp Change Response ~ ye / no yea / no
_
_ .o
f a . ~,..
~~
b
i .+~ y - v ~~ b y
A~g~etta~ Avg Delta H T V rype ~ Avg Ts Avg Tm MInIMax Mln/Max Mau Max Vac MiNMau
1 -~
Avg Sgrt Delta P Avg Sgrt Del H Comments: ~ EPA Method 0010 from EPA SW-846~ v ~ ~, c~
~i ~ v ~ ~
Diener Acid Page ~ or
-.~— ~ K Factor q y ~ Q
f
24
ISOHINETIC FIELD DATA SHEET ~1~ EPA Method 0010 - HFPO Diener Acidclient chemou~s Stack Conditions Meter Box ID ~~'
w.o.# ~sa~e.ogzoia.000i Assumed Actual nnetereox v ,p '7
Project ID Chemours %Moisture Meter Box Del H p
Page G of
K Factor
Initial Mid-Point Final
i~~,1 ~~'S~~
~~~~~~~~~~~1~
2i~'1 'li::~i~l~~li~'~;:~m~r~.y.. ~n
Mode/Source ID VE South -Scrubber Impinger Vol (ml)Probe ID /Length C Sample Train (ft3)
Samp. Loc. ID STK Silica gel (g)Probe Material Leak Check @ (in Hg)
Run No.ID 3 CO2, % by Vol
~
Pitot /Thermocouple ID Pitot leak check good
Test Methal ID M0010 02, % by Vol Pitot Coefficient .84 Pitot Inspectlon good
Date ID 21MAY2019 Temperature (°F)Noale ID Method 3 System goodSource/LocaUon ' V Sot~ih St i 'Meter Temp ("F)a ~ ~ NoaJe Measurements ~?~pQ ~ ~ Temp Check i re- es e os -T~STS@~—Sample Date Static Press (in H2O)(~(~..,~f' ~ Avg Noale Dia (in) ~ Meter Box Temp
Baro. Press (in Hg) ~~~ Area of Stack (ftZ) Reference Temp i
Operetor J' Ambient Temp (°F) ! '~} r ~j~ Sample Tfine Pass/Fa(I (+/- 2°) /Fail Pass / FaH
`' Total Traverse Pts Temp Change Response 5 no / ro
in _
~ ~ __
r
U
~Q Avg Delta P Avg Delta H rfo~fal'Vdl~me Avg Ts Avg Tm M(n/Max Min/Max Max Max Vac Min/MaxE~ J
Avg Sgrt Defta P Avg Sgrt Del H ~pmments: EPA Method 0010 from EPA SW-846
25
SAMPLE RECOVERY FIELD DATA
EPA Method 0010 - HFPO Diener Acid
Client
Location/Plant
Chemours
Fayetteville, NC
W.O. #
Source &Location
15418.002.014.0001
VE South Stack
~.~~`~~ ~
Run No. 1 Sample Date ] /~►"/ ~~ Recovery Date `~- -~~— ~~
Sample I.D. Chemours - VE South -Scrubber- STK- 1 - M0010 - Analyst ~ `~ Filter Number
Im in er
1 2 3 4 5 6 7 Imp.Total 8 Total
Contents Empry HPLC H2O HPLC H2O I ~f (~j~ ~Silica GeI
Final ~4 ~1.7 `~~~J ,~ /.~<~'.~~'.~
Initial ~goo goo (,~f~~.lS 300
Gain ~~l~1~•~7 Q ~2G ~ ;, I'~~ ~
Impinger Color ~ (',~ ~-'zc.~ Labeled? r~
Silica Gel Condition ~ Sealed? J
Run No. 2 Sample Date ; /~ ~ ~~ Recovery Date ,~~/~~ ~'
Sample I.D. Chemours - VE South -Scrubber - STK - 2 - M0010 - Analyst ~ Filter Number ~~
Impin er
1 2 3 4 5 6 7 Imp.Total 8 TotalContentsEmptyHPLC H2O HPLC H2O Silica Gel
Final ~ Q ~~ ~~~ ~~~~s (~
Initial ~goo goo ~~/~~ ~~~300
Gain ~(.~"" 5 .'~(~i ~~~~ ~~~ ~ ~~ ~ ka
Impinger Color ~! ~~ Labeled?
Silica Gel Condition ~ Sealed?
Run No. 3 Sample Date ~ ~~ ~~ Recovery Date ~~
Sample I.D. Chemours - VE South -Scrubber - STK - 3 - M0010 - Analyst ~ Filter Number
Impinger
1 2 3 4 5 6 7 Imp.Total 8 TotalContentsEmptyHPLC H2O HPLC H2O Silica Gel
Final ~~`~lQ ~~ ;Z„,"~,L
Initial ~100 100 E.0r 300
Gain ~~ ~fl ~~a`~~
Impinger Color Labeled?
Silica Gel Condition Sealed?
Check COC for Sample IDs of Media Blanks~~~h ~~ ~~ l
~/~~~1 ~s~~~~~~~~~ ~~~~~
26
Source Gas Analysis Data Sheet -Modified Method 3/3A
Client t J Analyst
Location/Plant K~'~ ~~ Date
Source ~i ^ ~ Analyzer Make &Model ~~~~ S$'~$ ~~/U~J
W.O. Number `Y ~~• D0~'
Calibration 5
Calibration Gas Calibration Gas Analyzer AnalyzerAnalysis Value Value Response Response
Number Soan p, f°/ 1 COQ (%1 O, (%1 COQ (%1
1 Zero ~ ~~<v t.C.~
2 Mid ~2~a(~9.~~g ~ ~, ~'~~Q
3 Hi h ~~ . ~~~ /, (~~j f~_ t~~~~ ~.
Average
Analyzer Analyser
Run Response Response
Number Analysis Time p, (%) CO, (%)
1 Qg~&~~~l~l__~—~~ ~~
z nW~-, 55 ~ ~~,~z ~, b~
3 ~ ~ ~ ~~ ~~~~ ~---~ ' lJ~--
Average ___,_________
Analyzer Analyzer
Run Response Response
Number Analysis Time Oz (%) CO? (%)
1
2
Average
Cnan CvlintiPr ID
Mid S.. ~~ ~ ~.y
Hi h ~~ ~~'i~
`*Report all values to the nearest 0.1 percent
27
SAMPLE RECOVERY FIELD DATA
Client C,~''+ W.O. #
Location/Plant ~y~~ „` ~ ~urce 8~ Location ~. 17
Run No. ~ Sam le Date a'` '~P ~ ~ ~~ Recovery Date
Sample I.D. Analyst ~, Filter Number
Im in er
1 2 3 4 5 6 7 Im .Total 8 Total
Contents Silica Gel
Final ~~~i,~~ ~
_
~
.~
Initial ~~ ~t~(~Q ~~
Gain d C~C7 -~'Ll ~Q ~
Impinger Color ~ Labeled?
Silica Gel Condition Sealed?
Run No. Sample Date Recovery Date
Sample I.D. Analyst Filter Number
Im in er
1 2 3 4 5 6 7 Imp.Total 8 TotalContentsSilica Gel
Final
Initial
Gain
Impinger Color Labeled?
Silip Gel Condition Sealed?
Run No. Sample Date Recovery Date
Sample I.D. Analyst Filter Mumber
Im in er
1 2 3 4 5 6 7 Im .Total 8 Total
Corrtents Silica Gel
Final
Initial
Gain
Impinger Color Labeled?
Silica Gel Condition Sealed?
~~
Check COC for Sample IDs of Media Blanks
28

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
APPENDIX C
LABORATORY ANALYTICAL REPORT

Note: The complete analytical report is included on the attached CD.
29
ANALYTICAL REPORT
Job Number: 140-15381-1
Job Description: VE South Stack
Contract Number: LBIO-67048
For:
Chemours Company FC, LLC The
c/o AECOM
Sabre Building, Suite 300
4051 Ogletown Road
Newark, DE 19713
Attention: Michael Aucoin
_____________________________________________
Approved for release.
Courtney M Adkins
Project Manager I
6/4/2019 7:59 AM
Courtney M Adkins, Project Manager I
5815 Middlebrook Pike, Knoxville, TN, 37921
[phone]
[e-mail]
06/04/2019
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.
Eurofins TestAmerica, Knoxville
5815 Middlebrook Pike, Knoxville, TN 37921
Tel [phone] Fax [phone] www.testamericainc.com
06/04/2019Page 1 of 18430
Table of Contents
Cover Title Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Data Summaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Default Detection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Organic Sample Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LCMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
8321A_HFPO_Du . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
8321A_HFPO_Du QC Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
8321A_HFPO_Du Sample Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Standards Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
8321A_HFPO_Du ICAL Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
8321A_HFPO_Du CCAL Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Raw QC Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
8321A_HFPO_Du Blank Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
8321A_HFPO_Du LCS/LCSD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
8321A_HFPO_Du Run Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
8321A_HFPO_Du Prep Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
06/04/2019Page 2 of 18431
Table of Contents
Method DV-LC-0012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Method DV-LC-0012 QC Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Method DV-LC-0012 Sample Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Standards Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Method DV-LC-0012 CCAL Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Raw QC Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Method DV-LC-0012 Tune Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Method DV-LC-0012 Blank Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Method DV-LC-0012 LCS/LCSD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
Method DV-LC-0012 Run Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165
Method DV-LC-0012 Prep Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
Shipping and Receiving Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Client Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
06/04/2019Page 3 of 18432







 
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06/04/2019Page 11 of 18440

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
APPENDIX D
SAMPLE CALCULATIONS

41
SAMPLE CALCULATIONS FOR
HFPO DIMER ACID (METHOD 0010)
Client: Chemours Plant: Fayetteville, NC
Test Number: Run 3 Test Date: 05/23/19
Test Location: VE South Stack Test Period: 1341-1536
1. HFPO Dimer Acid concentration, lbs/dscf.
W x 2.2046 x 10-9
Conc1 = ------------------------------
Vm(std)
59.5 x 2.2046 x 10-9
Conc1 = ------------------------------
60.861
Conc1 = 2.16E-09
Where:
W = Weight of HFPO Dimer Acid collected in sample in ug.
Conc1 = Division Stack HFPO Dimer Acid concentration, lbs/dscf.
2.2046x10-9 = Conversion factor from ug to lbs.
2. HFPO Dimer Acid concentration, ug/dscm.
Conc2 = W / ( Vm(std) x 0.02832)
Conc2 = 59.5 / ( 60.861 x 0.02832 )
Conc2 = 34.53
Where:
Conc2 = Division Stack HFPO Dimer Acid concentration, ug/dscm.
0.02832 = Conversion factor from cubic feet to cubic meters.
3. HFPO Dimer Acid mass emission rate, lbs/hr.
MR1(Outlet)= Conc1 x Qs(std) x 60 min/hr
MR1(Outlet)= 2.16E-09 x 12055 x 60
MR1(Outlet)= 1.56E-03
Where:
MR1(Outlet)= Division Stack HFPO Dimer Acid mass emission rate, lbs/hr.
4. HFPO Dimer Acid mass emission rate, g/sec.
MR2(Outlet)= PMR1 x 453.59 / 3600
MR2(Outlet)= 1.56E-03 x 453.59 /3600
MR2(Outlet)= 1.96E-04
Where:
MR2(Outlet)= Division Stack HFPO Dimer Acid mass emission rate, g/sec.
453.6 = Conversion factor from pounds to grams.
3600 = Conversion factor from hours to seconds.
6/5/20192:51 PM 052219 VE South stack (version 1)42
EXAMPLE CALCULATIONS FOR
VOLUMETRIC FLOW AND MOISTURE AND ISOKINETICS
Client: Chemours
Test Number: Run 3
Test Location: VE South Stack
Facility: Fayetteville, NC
Test Date: 05/23/19
Period: 1341-1536
1. Volume of dry gas sampled at standard conditions (68 deg F, 29.92 in. Hg), dscf.
delta H
17.64 x Y x Vm x ( Pb + ------------ )
13.6
Vm(std)= --------------------------------------------
(Tm + 460)
1.533
17.64 x 1.0107 x 63.015 x ( 30.28 + --------------------- )
13.6
Vm(std)= ------------------------------------------------------------ = 60.861
101.04 + 460
Where:
Vm(std) = Volume of gas sample measured by the dry gas meter,
corrected to standard conditions, dscf.
Vm = Volume of gas sample measured by the dry gas meter
at meter conditions, dcf.
Pb = Barometric Pressure, in Hg.
delt H = Average pressure drop across the orifice meter, in H2O
Tm = Average dry gas meter temperature , deg F.
Y = Dry gas meter calibration factor.
17.64 = Factor that includes ratio of standard temperature (528 deg R)
to standard pressure (29.92 in. Hg), deg R/in. Hg.
13.6 = Specific gravity of mercury.
2. Volume of water vapor in the gas sample corrected to standard conditions, scf.
Vw(std) = (0.04707 x Vwc) + (0.04715 x Wwsg)
Vw(std) = ( 0.04707 x 27.0 ) + ( 0.04715 x 20.1 ) = 2.22
Where:
Vw(std) = Volume of water vapor in the gas sample corrected to
standard conditions, scf.
Vwc = Volume of liquid condensed in impingers, ml.
Wwsg = Weight of water vapor collected in silica gel, g.
0.04707 = Factor which includes the density of water
(0.002201 lb/ml), the molecular weight of water
(18.0 lb/lb-mole), the ideal gas constant
21.85 (in. Hg) (ft3)/lb-mole)(deg R); absolute
temperature at standard conditions (528 deg R), absolute
pressure at standard conditions (29.92 in. Hg), ft3/ml.
0.04715 = Factor which includes the molecular weight of water
(18.0 lb/lb-mole), the ideal gas constant
21.85 (in. Hg) (ft3)/lb-mole)(deg R); absolute
temperature at standard conditions (528 deg R), absolute
pressure at standard conditions (29.92 in. Hg), and
453.6 g/lb, ft3/g.
6/5/20192:51 PM 052219 VE South stack (version 1)43
3. Moisture content
Vw(std)
bws = -------------------------
Vw(std) + Vm(std)
2.22
bws = ------------------------- = 0.035
2.22 + 60.861
Where:
bws = Proportion of water vapor, by volume, in the gas
stream, dimensionless.
4. Mole fraction of dry gas.
Md = 1 - bws
Md = 1 - 0.035 = 0.965
Where:
Md = Mole fraction of dry gas, dimensionless.
5. Dry molecular weight of gas stream, lb/lb-mole.
MWd = ( 0.440 x % CO2 ) + ( 0.320 x % O2 ) + ( 0.280 x (% N2 + % CO) )
MWd = ( 0.440 x 0.0 ) + ( 0.320 x 20.9 ) + (0.280 x ( 79.1 + 0.00 ))
MWd = 28.84
Where:
MWd = Dry molecular weight , lb/lb-mole.
% CO2 = Percent carbon dioxide by volume, dry basis.
% O2 = Percent oxygen by volume, dry basis.
% N2 = Percent nitrogen by volume, dry basis.
% CO = Percent carbon monoxide by volume, dry basis.
0.440 = Molecular weight of carbon dioxide, divided by 100.
0.320 = Molecular weight of oxygen, divided by 100.
0.280 = Molecular weight of nitrogen or carbon monoxide,
divided by 100.
6. Actual molecular weight of gas stream (wet basis), lb/lb-mole.
MWs = ( MWd x Md ) + ( 18 x ( 1 - Md ))
MWs = ( 28.84 x 0.965 ) +( 18 ( 1 - 0.965 )) = 28.45
Where:
MWs = Molecular weight of wet gas, lb/lb-mole.
18 = Molecular weight of water, lb/lb-mole.
6/5/20192:51 PM 052219 VE South stack (version 1)44
7. Average velocity of gas stream at actual conditions, ft/sec.
Ts (avg)
Vs =85.49 x Cp x ((delt p)1/2)avg x ( ---------------- )1/2
Ps x MWs
554
Vs = 85.49 x 0.84 x 0.38979 x ( -------------------- )^1/2 = 22.4
30.32 x 28.45
Where:
Vs = Average gas stream velocity, ft/sec.
(lb/lb-mole)(in. Hg)1/2
85.49 = Pitot tube constant, ft/sec x ------------------------------------
(deg R)(in H2O)
Cp = Pitot tube coefficient, dimensionless.
Ts = Absolute gas stream temperature, deg R = Ts, deg F + 460.
P(static)
Ps = Absolute gas stack pressure, in. Hg. = Pb + --------------
13.6
delt p = Velocity head of stack, in. H2O.
8. Average gas stream volumetric flow rate at actual conditions, wacf/min.
Qs(act) = 60 x Vs x As
Qs(act) = 60 x 22.4 x 9.62 = 12951
Where:
Qs(act) = Volumetric flow rate of wet stack gas at actual
conditions, wacf/min.
As =Cross-sectional area of stack, ft2.
60 = Conversion factor from seconds to minutes.
9. Average gas stream dry volumetric flow rate at standard conditions, dscf/min.
Ps
Qs(std) = 17.64 x Md x ----- x Qs(act)
Ts
30.32
Qs(std) = 17.64 x 0.965 x -------------------- x 12951
554.3
Qs(std) =12055
Where:
Qs(std) = Volumetric flow rate of dry stack gas at standard
conditions, dscf/min.
6/5/20192:51 PM 052219 VE South stack (version 1)45
10. Isokinetic variation calculated from intermediate values, percent.
17.327 x Ts x Vm(std)
I = -----------------------------------
Vs x O x Ps x Md x (Dn)2
17.327 x 554 x 60.861
I = -------------------------------------------------- = 103.1
22.4 x 96 x 30.32 x 0.965 x (0.300)^2
Where:
I = Percent of isokinetic sampling.
O = Total sampling time, minutes.
Dn = Diameter of nozzle, inches.
17.327 = Factor which includes standard temperature (528 deg R),
standard pressure (29.92 in. Hg), the formula for
calculating area of circle D2/4, conversion of square
feet to square inches (144), conversion of seconds
to minutes (60), and conversion to percent (100),
(in. Hg)(in2)(min)
(deg R)(ft2)(sec)
6/5/20192:51 PM 052219 VE South stack (version 1)46

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
APPENDIX E
EQUIPMENT CALIBRATION RECORDS

47
Pitot Tube Identification Number:
Inspection Date 2/19/19 Individual Conducting Inspection
Distance to A Plane (PA) - inches 0.46 PASS
Distance to B Plane (PB) - inches 0.46 PASS
Pitot OD (Dt) - inches 0.375
1.05 Dt < P < 1.5 Dt PA must Equal PB
Q1 and Q2 must be < 10o
B1 or B2 must be < 5o
Z must be < 0.125 inches
W must be < 0.03125 inches
X must be > 0.75 inches
Thermocouple meets
the Distance Criteria
in the adjacent figure
Impact Pressure
Opening Plane is
above the Nozzle
Entry Plane
NO
NA
NO
NA
PASS
PASS
PASS
Distance between Sample
Nozzle and Pitot (X) - inches
Thermocouple meets
the Distance Criteria
in the adjacent figure
YES
YES
PASS
NO YES
NA
0
0
Angle of B1 from
vertical A Tube-
degrees (absolute)0
0
0.8
Horizontal offset between A and
B Tubes (Z) - inches
Vertical offset between A and B
Tubes (W) - inches
0.004
0.015
PASS/FAIL
Angle of B1 from
vertical B Tube-
degrees (absolute)
PASS
PASS
PASS
P-694
ks
Angle of Q1 from vertical A Tube-
degrees (absolute)
Angle of Q2 from vertical B Tube-
degrees (absolute)
Type S Pitot Tube Inspection Data Form
Are Open Faces Aligned
Perpendicular to the Tube Axis YES NO PASS
If all Criteria PASS
Cp is equal to 0.84
Sample Probe
Type S Pitot Tube
Temperature Sensor
Dt
2 inch
Sample Probe
Temperature Sensor
Dt Type S Pitot Tube
3 inch
3/4 inch
A B
Face Opening Planes
A
B A B
Q1 Q1 Q2
B B
B
A A
A
FlowFlow
B1(+)B1(-)
B2(+ or -)
B1(+ or -)
B-Side Plane
AB
PA
PB
A-Side PlaneDt
X
Sampling D
Impact Pressure Opening Plane
Nozzle Entry Plane
W
B
A
B
A
Z
48
CERTIFICATE OF ANALYSIS
Grade of Product: EPA Protocol
Part Number:E03NI79E15A00E4 Reference Number:160-401424145-1
Cylinder Number:CC157024 Cylinder Volume:150.5 CF
Laboratory:124 - Plumsteadville - PA Cylinder Pressure:2015 PSIG
PGVP Number:A12019 Valve Outlet:590
Gas Code:CO2,O2,BALN Certification Date:Feb 26, 2019
Expiration Date:Feb 26, 2027
Certification performed in accordance with “EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards (May 2012)” document EPA
600/R-12/531, using the assay procedures listed. Analytical Methodology does not require correction for analytical interference. This cylinder has a total analytical
uncertainty as stated below with a confidence level of 95%. There are no significant impurities which affect the use of this calibration mixture. All concentrations are on a
volume/volume basis unless otherwise noted.
Do Not Use This Cylinder below 100 psig, i.e. 0.7 megapascals.
ANALYTICAL RESULTS
Component Requested Actual Protocol Total Relative Assay
Concentration Concentration Method Uncertainty Dates
CARBON DIOXIDE 9.000 %9.018 %G1 +/- 0.6% NIST Traceable 02/26/2019
OXYGEN 12.00 %12.06 %G1 +/- 0.3% NIST Traceable 02/26/2019
NITROGEN Balance -
CALIBRATION STANDARDS
Type Lot ID Cylinder No Concentration Uncertainty Expiration Date
NTRM 061507 K014984 13.94 % CARBON DIOXIDE/NITROGEN 0.57%Jan 30, 2024
NTRM 16060507 CC401541 23.204 % OXYGEN/NITROGEN 0.2%Dec 24, 2021
ANALYTICAL EQUIPMENT
Instrument/Make/Model Analytical Principle Last Multipoint Calibration
HORIBA VA5011 T5V6VU9P NDIR CO2 NDIR Feb 12, 2019
SIEMENS OXYMAT 61 S01062 O2 PARAMAGNETIC Feb 18, 2019
Triad Data Available Upon Request
Airgas Specialty GasesAirgas USA, LLC
6141 Easton Road
Bldg 1
Plumsteadville, PA 18949
Airgas.com
Signature on file
Approved for Release Page 1 of 160-401424145-149
CERTIFICATE OF ANALYSIS
Grade of Product: EPA Protocol
Part Number:E03NI62E15A0224 Reference Number:82-401288925-1
Cylinder Number:ALM047628 Cylinder Volume:157.2 CF
Laboratory:124 - Riverton (SAP) - NJ Cylinder Pressure:2015 PSIG
PGVP Number:B52018 Valve Outlet:590
Gas Code:CO2,O2,BALN Certification Date:Sep 04, 2018
Expiration Date:Sep 04, 2026
Certification performed in accordance with “EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards (May 2012)” document EPA
600/R-12/531, using the assay procedures listed. Analytical Methodology does not require correction for analytical interference. This cylinder has a total analytical
uncertainty as stated below with a confidence level of 95%. There are no significant impurities which affect the use of this calibration mixture. All concentrations are on a
volume/volume basis unless otherwise noted.
Do Not Use This Cylinder below 100 psig, i.e. 0.7 megapascals.
ANALYTICAL RESULTS
Component Requested Actual Protocol Total Relative Assay
Concentration Concentration Method Uncertainty Dates
CARBON DIOXIDE 17.00 %17.05 %G1 +/- 0.7% NIST Traceable 09/04/2018
OXYGEN 21.00 %21.25 %G1 +/- 0.5% NIST Traceable 09/04/2018
NITROGEN Balance -
CALIBRATION STANDARDS
Type Lot ID Cylinder No Concentration Uncertainty Expiration Date
NTRM 13060804 CC415400 24.04 % CARBON DIOXIDE/NITROGEN +/- 0.6%May 16, 2019
NTRM 09061420 CC273671 22.53 % OXYGEN/NITROGEN +/- 0.4%Mar 08, 2019
ANALYTICAL EQUIPMENT
Instrument/Make/Model Analytical Principle Last Multipoint Calibration
Horiba VIA 510-CO2-19GYCXEG NDIR Aug 09, 2018
Horiba MPA 510-O2-7TWMJ041 Paramagnetic Aug 09, 2018
Triad Data Available Upon Request
Airgas Specialty GasesAirgas USA, LLC
600 Union Landing Road
Cinnaminson, NJ 08077-0000
Airgas.com
Signature on file
Approved for Release Page 1 of 82-401288925-150
Date: 12/4/14-12/5/14Analyzer Type: Servomex - O2Model No: 4900Serial No: 49000-652921Calibration Span: 21.09 %Pollutant: 21.09% O2 - CC418692
CO2 (30.17% CC199689)0.00 -0.01 0.00
.
NO (445 ppm CC346681)0.00 0.02 0.11
NO2 (23.78 ppm CC500749)NA NA NA
N2O (90.4 ppm CC352661)0.00 0.05 0.24
CO (461.5 ppm XC006064B)0.00 0.02 0.00
SO2 (451.2 ppm CC409079)0.00 0.05 0.23
CH4 (453.1 ppm SG901795)NA NA NA
H2 (552 ppm ALM048043)0.00 0.09 0.44
HCl (45.1 ppm CC17830)0.00 0.03 0.14
NH3 (9.69 ppm CC58181)0.00 0.01 0.03
1.20
< 2.5%
(a) The larger of the absolute values obtained for the interferent tested with and without the pollutant present was used in summing the interferences.

Chad Walker
INTERFERENCE CHECK
INTERFERENT GAS
ANALYZER RESPONSE % OF CALIBRATION
SPAN(a)
TOTAL INTERFERENCE RESPONSE
METHOD SPECIFICATION
INTERFERENT GAS RESPONSE, WITH
BACKGROUND POLLUTANT (%)INTERFERENT GAS RESPONSE (%)
51
Date: 12/4/14-12/5/14Analyzer Type: Servomex - CO2Model No: 4900Serial No: 49000-652921Calibration Span: 16.65%Pollutant: 16.65% CO2 - CC418692
CO2 (30.17% CC199689)NA NA NA
.
NO (445 ppm CC346681)0.00 0.02 0.10
NO2 (23.78 ppm CC500749)0.00 0.00 0.02
N2O (90.4 ppm CC352661)0.00 0.01 0.04
CO (461.5 ppm XC006064B)0.00 0.01 0.00
SO2 (451.2 ppm CC409079)0.00 0.11 0.64
CH4 (453.1 ppm SG901795)0.00 0.07 0.44
H2 (552 ppm ALM048043)0.00 0.04 0.22
HCl (45.1 ppm CC17830)0.10 0.06 0.60
NH3 (9.69 ppm CC58181)0.00 0.02 0.14
2.19
< 2.5%
(a) The larger of the absolute values obtained for the interferent tested with and without the pollutant present was used in summing the interferences.

Chad Walker
INTERFERENCE CHECK
INTERFERENT GAS
ANALYZER RESPONSE % OF CALIBRATION
SPAN(a)
TOTAL INTERFERENCE RESPONSE
METHOD SPECIFICATION
INTERFERENT GAS RESPONSE, WITH
BACKGROUND POLLUTANT (%)INTERFERENT GAS RESPONSE (%)
52
Calibrator PM Meter Box Number 26 Ambient Temp 71
Date 18-Jan-19 Wet Test Meter Number P-2952 Temp Reference Source
Dry Gas Meter Number 16300942
Setting
in H20
(∆H)
ft3
(Vw)
ft3
(Vd)
oF
(Tw)
Outlet, oF
(Tdo)
Inlet, oF
(Tdi)
Average, oF
(Td)
Time, min
(O)Y ∆H
4.524 72.00 72.00
9.510 73.00 73.00
4.986 72.50 72.50
9.510 72.00 72.00
16.455 73.00 73.00
6.945 72.50 72.50
16.455 73.00 73.00
26.361 74.00 74.00
9.906 73.50 73.50
26.361 74.00 74.0036.233 76.00 76.00
9.872 75.00 75.00
36.233 76.00 76.00
46.119 77.00 77.00
9.886 76.50 76.50
Average 1.0107 2.0868
Vw - Gas Volume passing through the wet test meter 0 - Time of calibration run
Vd - Gas Volume passing through the dry gas meter Pb - Barometric Pressure
Tw - Temp of gas in the wet test meter
Tdi - Temp of the inlet gas of the dry gas meter
Tdo - Temp of the outlet gas of the dry gas meter
Td - Average temp of the gas in the dry gas meter

1 2 3 4 5 6
31 31 31 31 31 31.0 0.2%
212 212 212 212 212 212.0 0.0%
931 931 931 931 931 931.0 0.1%
1830 1830 1830 1830 1830 1830.0 0.1%
1 - Channel Temps must agree with +/- 5oF or 3oC
2 - Acceptable Temperature Difference less than 1.5 %
2.0 10.0
2.053813.5 1.0044
Dry Gas Meter
71.0
0.5 71.0
1.0
Long Cal and Temperature Cal Datasheet for Standard Dry Gas Meter Console
Orifice
Manometer
Wet Test
Meter Dry gas Meter
Gas Volume
2.03417.0 71.0 72.5 13.3
Y - Ratio of accuracy of wet test
meter to dry gas meter
∆H - Pressure differential across
orifice
3.0 10.0 71.0
Temperatures
Wet Test
Meter
72.5
1.5 10.0
1.0083
5.0
71.0
11.3 1.0145
73.5
75.0
2.1596
2.044213.5 1.0156
16.0 1.0105
932
1832
Reference
Temperature
Select Temperature
oC oF
212
32
Average
Temperature
Reading
Thermocouple Simulator
(Accuracy +/- 1oF)
Temp
Difference 2
(%)
Temperature Reading from Individual Thermocouple Input 1
Channel Number
2.1423
Calibration Results
Baro Press, in
Hg ( Pb)29.79
76.5
( )( )
( )
( )
2
Vw
O460tw
460tdPb
H0317.0H
460tw6.13
HPbVd
)460td(PbVwY


∗+∗


+∗
∆∗=∆
+∗

∆+∗
+∗∗=
( )()( )()( )



+
+−+=460FTempferenceRe
460FTempTest460FTempferenceReDiffTempo
oo
53
Y Factor Calibration Check Calculation
MODIFIED METHOD 0010 TEST TRAIN
VE SOUTH STACK
METER BOX NO. 26
05/22/2019 & 05/23/2019
Run 1 Run 2 Run 3
MWd = Dry molecular weight source gas, lb/lb-mole.
0.32 = Molecular weight of oxygen, divided by 100.
0.44 = Molecular weight of carbon dioxide, divided by 100.
0.28 = Molecular weight of nitrogen or carbon monoxide, divided by 100.
% CO2 = Percent carbon dioxide by volume, dry basis.0.0 0.0 0.0
% O2 = Percent oxygen by volume, dry basis.20.9 20.9 20.9
MWd = ( 0.32 * O2 ) + ( 0.44 * CO2 ) + ( 0.28 * ( 100 - ( CO2 + O2 )))
MWd = ( 0.32 * 20.9 ) + ( 0.44 * 0 ) + ( 0.28 * ( 100 - ( 0 + 20.9 )))
MWd = ( 6.69 ) + ( 0.00 ) + ( 22.15 )
MWd = 28.84 28.84 28.84
Tma =Source Temperature, absolute(oR)
Tm = Average dry gas meter temperature , deg F.84.0 93.1 101.0
Tma = Ts + 460
Tma = 83.96 + 460
Tma = 543.96 553.13 561.04
Ps = Absolute meter pressure, inches Hg.
13.60 = Specific gravity of mercury.
delta H = Avg pressure drop across the orifice meter during sampling, in H2O 1.47 1.27 1.53
Pb = Barometric Pressure, in Hg.30.20 30.28 30.28
Pm = Pb + (delta H / 13.6)
Pm = 30.2 + ( 1.46791666666667 / 13.6)
Pm = 30.31 30.37 30.39
Yqa = dry gas meter calibration check value, dimensionless.
0.03 = (29.92/528)(0.75)2 (in. Hg/°/R) cfm2.
29.00 = dry molecular weight of air, lb/lb-mole.
Vm = Volume of gas sample measured by the dry gas meter at meter conditions, dcf.60.826 57.096 63.015
Y = Dry gas meter calibration factor (based on full calibration)1.0107 1.0107 1.0107
Delta H@ = Dry Gas meter orifice calibration coefficient, in. H2O.2.0868 2.0868 2.0868
avg SQRT Delta H =Avg SQRT press. drop across the orifice meter during sampling , in. H2O 1.2036 1.1219 1.2326
O = Total sampling time, minutes.96 96 96
Yqa = (O / Vm ) * SQRT ( 0.0319 * Tma * 29 ) / ( Delta H@ * Pm * MWd ) * avg SQRT Delta H
Yqa = ( 96.00 / 60.83 ) * SQRT ( 0.0319 * 543.96 * 29 ) / ( 2.09 * 30.31 * 28.84 ) * 1.20
Yqa = 1.578 * SQRT 503.216 / 1,823.903 * 1.20
Yqa = 0.9978 0.9981 1.0004
Diff = Absolute difference between Yqa and Y 1.28 1.25 1.02
Diff = (( Y - Yqa ) / Y ) * 100
Diff = (( 1.0107 - 0.998 ) / 1.0107 ) * 100
Average Diff = 1.18
Allowable = 5.0
6/5/20192:52 PM 052219 VE South stack (version 1)54

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
APPENDIX F
LIST OF PROJECT PARTICIPANTS

55

IASDATA\CHEMOURS\15418.002.009\VE SOUTH REPORT MAY 2019 - AMD 6/18/2019
The following Weston employees participated in this project.
Jeff O’Neill Senior Project Manager
Kris Ansley Team Member
Kyle Schweitzer Team Member
Nick Guarino Team Member

56