2020.04.30_CCO.p11.b_PFASCharacterizationQuarterlyReport4

CHARACTERIZATION OF PFAS IN
PROCESS AND NON-PROCESS
WASTEWATER AND STORMWATER
Quarterly Report #4

Prepared for
The Chemours Company FC, LLC
22828 NC-87
Fayetteville, NC 28306

Prepared by
Geosyntec Consultants of NC, P.C.
2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
Geosyntec Project Number TR0795

April 30, 2020
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TABLE OF CONTENTS
1. INTRODUCTION ................................................................................................ 1
1.1 Background .................................................................................................. 1
1.2 Activities Completed for this Quarterly Report .......................................... 2
1.3 Report Organization .................................................................................... 3
2.METHODS ........................................................................................................... 4
2.1 Sample Locations ........................................................................................ 4
2.2 Field Methods .............................................................................................. 4
2.2.1 General Field Methods .................................................................... 4
2.2.2 Decontamination Methods .............................................................. 5
2.2.3 Grab Sampling Methods ................................................................. 5
2.2.4 Temporal Composite Sampling Methods ....................................... 5
2.2.5 Sample Shipping, Chain of Custody, and Holding Times .............. 6
2.2.6 Field QA/QC Samples .................................................................... 6
2.2.7 Documentation ................................................................................ 7
2.3 Laboratory Methods .................................................................................... 7
2.3.1 Analytical Methods ......................................................................... 7
2.3.2 Laboratory and Field QA/QC.......................................................... 7
3.RESULTS AND OBSERVATIONS .................................................................... 8
3.1 Data Quality ................................................................................................. 8
3.1.1 Data Management and Reporting.................................................... 9
3.1.2 QA/QC Samples .............................................................................. 9
3.2 Investigative Sample Results ....................................................................... 9
3.3 Observations .............................................................................................. 10
4. SAMPLING PROGRAM STATUS ................................................................... 15
4.1 Activities Planned for Next Quarter .......................................................... 15
5.SUMMARY AND RECOMMENDATIONS .................................................... 16
6.REFERENCES ................................................................................................... 17
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LIST OF TABLES
Table 1: Paragraph 11(b) Proposed Sample Location Summary
Table 2: Summary of Samples Collected
Table 3: PFAS and Associated Analytical Methods
Table 4: Analytical Results – 2020 Quarter 1
Table 5: Analytical Results – All Events
Table 6: Total Daily Precipitation – 2020 Quarter 1
LIST OF FIGURES
Figure 1: Site Location Map
Figure 2: Paragraph 11(b) Sample Locations
Figure 3A: HFPO-DA, PFMOAA, and PMPA Concentrations – Locations that Reach
Outfall 002
Figure 3B: Total Table 3+ Concentrations – Locations that Reach Outfall 002
Figure 4A: Intake and Outfall 002 HFPO-DA Concentrations
Figure 4B: Intake and Outfall 002 PFMOAA Concentrations
Figure 4C: Intake and Outfall 002 PMPA Concentrations
LIST OF APPENDICES
Appendix A: Field Parameters
Appendix B: Laboratory Reports and Data Review Narrative Whitebooks
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ACRONYMS AND ABBREVIATIONS
COC – Chain of Custody
DEQ – The North Carolina Department of Environmental Quality
DO – Dissolved oxygen
DQO – data quality objectives
DVM – Data Verification Module
EIM – Environmental Information Management
EPA – Environmental Protection Agency
HDPE – High Density Polyethylene
HFPO-DA – Hexafluoropropylene oxide dimer acid
HRT – Hydraulic residence time
mg/L – Milligrams per liter
mL – Milliliter
MS – Matrix spike
MSD – Matrix spike duplicates
mV – Millivolts
ng/L – Nanograms per liter
NTU – Nephelometric turbidity units
ORP – Oxidation/Reduction Potential
PFAS – Per- and polyfluoroalkyl substances
PFMOAA – 2,2-difluoro-2-(trifluoromethoxy) acetic acid
PMPA – Perfluoromethoxypropyl carboxylic acid
QA/QC – Quality assurance/ quality control
RPD – Relative percent difference
SC – Specific conductance
SOP –Standard Operating Procedure
TestAmerica – TestAmerica Sacramento
WWTP – Wastewater treatment plant
oC – Degrees Celsius
µmho - micromhos
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“I certify that I am personally familiar with the information contained in this submittal,
including any and all supporting documents accompanying this report, and that the
material and information contained herein is, to the best of my knowledge and belief,
true, accurate and complete.”
Adrienne Nemura, North Carolina Licensed Professional Engineer 038141
Geosyntec Consultants of NC, PC is licensed to practice engineering in North Carolina.
The certification number (Firm’s License Number) is C-3500.
04/30/2020
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1.INTRODUCTION
This report was prepared by Geosyntec Consultants of NC, P.C. (Geosyntec) for The
Chemours Company FC, LLC (Chemours) to provide a quarterly update on the
identification and concentrations of per- and polyfluoroalkyl substances (“PFAS”) in
process wastewater, non-process wastewater, and stormwater at the Chemours
Fayetteville Works, North Carolina site (the Facility, Figure 1). This report is prepared
pursuant to Paragraph 11(c) in the executed Consent Order entered February 25, 2019
amongst Chemours, the North Carolina Department of Environmental Quality (DEQ),
and Cape Fear River Watch.
This is the fourth quarterly report addressing Paragraph 11(c) of the Consent Order. The
objective of this report, as stated in the PFAS Characterization Sampling Plan
(Geosyntec, 2019a), is to characterize the concentrations of PFAS in the raw water intake
at the facility, process wastewater, non-process wastewater, and stormwater, including
water that is discharged through Outfall 002.
1.1 Background
Chemours submitted an updated PFAS Characterization Sampling Plan to DEQ on May
6, 2019 (Geosyntec, 2019a) based on comments received on the draft plan submitted on
December 30, 2018. On June 19, 2019, DEQ provided written approval of the PFAS
Characterization Sampling Plan to Chemours.
The first quarterly report for this program was submitted on July 31, 2019 (Geosyntec,
2019b) and contained data for the 2019 Quarter 2 period (April, May and June). The first
bimonthly PFAS characterization sampling event took place on April 24, 2019 (the April
2019 event). Samples were also collected on June 27 and June 28, 2019 (the June 2019
event), but data were pending at the time of submission of the first report.
The second quarterly report for this program was submitted on October 31, 2019
(Geosyntec, 2019c) and contained data for the 2019 Quarter 3 period (July, August,
September), including samples collected on August 21 and 22, 2019 (the August 2019
event), as well as the June 2019 event PFAS characterization data that was pending at the
time of submission of the first report.
The third quarterly report for this program was submitted on January 31, 2020
(Geosyntec, 2020) and contained data for the 2019 Quarter 4 period (2019 Quarter 4
(October, November, and December 2019). Samples were collected on October 9 and
October 10, 2019 (the October 2019 event) and on December 20 and 23, 2019 (the

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December 2019 event). The recommendations from the second quarterly report
(Geosyntec, 2019c) were implemented during the December 2019 event.
Recommendations made in the third quarterly report included (i) further evaluation into
the source of PFAS observed at Location 8 (effluent from the Wastewater Treatment Plant
[WWTP]) (Geosyntec, 2019c), and (ii) continued evaluation of the PFAS related to the
WWTP after the Terracotta Pipe feeding into the WWTP has been decommissioned.
1.2 Activities Completed for this Quarterly Report
The activity period for this quarterly report includes 2020 Quarter 1 (January, February
and March 2020). Table 1 provides a summary of the proposed sample locations to be
collected at the Facility (Geosyntec, 2019a). In this quarter, process wastewater and non-
process wastewater samples were collected for the sixth bimonthly PFAS characterization
sampling event on January 29 and January 31, 2020 (the January 2020 event). These
samples were collected as outlined in the PFAS Characterization Sampling Plan
(Geosyntec, 2019a) to address requirements specified in Paragraph 11(b) in the executed
Consent Order, with adjustments made based on recommendations in prior reports
(Geosyntec 2019a, 2019b, 2019c, and 2020).
Previous bimonthly sampling events were conducted during dry periods; the January
2020 event was also conducted during a dry period to enable comparison to the prior
events. Future sampling events are planned to be conducted during a wet (rainfall/storm)
event to complement the findings from prior dry weather sampling events. To
characterize PFAS concentrations during rain events, grab samples have also been
collected as part of a dedicated stormwater sampling program outlined in the Cape Fear
River PFAS Mass Loading Reduction Plan (Geosyntec, 2019d).
During 2020 Quarter 1, additional investigations to more fully contextualize WWTP
operations as part of this program were conducted. These activities are still on-going as
of April 2020 and recommendations for additional sampling and analysis will be
submitted in a future quarterly report.
Supplemental targeted stormwater sampling was also conducted in 2020 Quarter 1 to
characterize potential stormwater-related PFAS sources in the Monomers/IXM area as
outlined in the Cape Fear River PFAS Mass Loading Reduction Plan (Geosyntec, 2019d).
These data will be reported in a future quarterly report.
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1.3 Report Organization
The remainder of this document is organized as follows:
Section 2 – Methods: this section describes the methods employed for sample
collection and analysis;
Section 3 – Results and Observations: this section describes the PFAS
concentrations in investigative samples and quality control samples;
Section 4 – Sampling Program Status: this section describes planned sampling
activities and supplemental sampling activities that support PFAS
characterization at the Facility;
Section 5 – Summary and Recommendations: this section summarizes
activities conducted, observations of results, recommended supplemental
sampling activities, and any recommended changes to the sampling plan; and
Section 6 – References: this section lists the documents referenced in the report.

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2. METHODS
This section describes the methods implemented for data reported in this 2020 Quarter 1
report.
2.1 Sample Locations
Proposed sample locations outlined in the PFAS Characterization Sampling Plan
(Geosyntec, 2019a) are described in Table 1 and shown in Figure 2.
In the January 2020 event, investigative samples were collected from twenty (20)
locations listed in Table 2. Locations 2, 3, 4, 5, 11, 12, 13 and 14 were not sampled for
the January 2020 event as there was insufficient water at these locations during the
sampling event because it occurred during a dry period. Some of these locations have
been sampled as a part of the stormwater grab sampling program described in Geosyntec
(2019d). During each sampling event, either Location 21A or 21B (the south and north
sediment ponds) is sampled depending on which sediment pond is active. The south
sediment pond (Location 21A) was active during the January 2020 event and a sample
was collected from this pond.
2.2 Field Methods
2.2.1 General Field Methods
All equipment was inspected by the field program supervisor and calibrated daily prior
to use in the field, according to the manufacturer’s recommendations. Field parameters
were measured with a water quality meter prior to sample collection and then recorded.
Field parameters include the following:
 pH;
 Temperature (degrees Celsius; °C);
 Specific conductance [SC] (micromhos, μmho);
 Dissolved oxygen [DO] (milligrams per liter; mg/L);
 Oxidation/Reduction Potential [ORP] (millivolts; mV);
 Turbidity (nephelometric turbidity units, NTU);
 Color; and
 Odor.

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Samples were collected in 250 milliliter (mL) high density polyethylene (HDPE) bottles
with a wide-mouth screw-cap. Sample bottles were filled and caps were securely fastened
after sample collection. Each sample was labelled with a unique sample identification
number, date, time and location of sampling, and the initials of the individual collecting
the sample. A field notebook was used to record information regarding additional items
such as quality assurance/ quality control (QA/QC), sample identifications, color, odor,
turbidity, and other field parameters.
2.2.2 Decontamination Methods
Sample containers were new and used only once for each sample. Disposable equipment
(e.g., gloves, tubing, etc.) was not reused, therefore; these items did not require
decontamination.
All non-dedicated or non-disposable sampling equipment (i.e., the autosampler reservoir
and dip rod) was decontaminated immediately before sample collection in the following
manner:
 De-ionized water rinse;
 Scrub with de-ionized water containing non-phosphate detergent (i.e.,
Alconox®); and
 De-ionized water rinse.
If there was a delay between decontamination and sample collection, decontaminated
sampling equipment was covered with PFAS-free plastic until it was ready for use.
2.2.3 Grab Sampling Methods
Grab samples were collected during the January 2020 event from locations where
temporal variability over the course of one day was not expected. These locations include
non-process wastewater and process wastewater samples and are identified in Table 2 and
shown on Figure 2. All grab samples were collected by directly filling the HDPE bottle
with the sample. Prior to grab sample collection, field parameters were measured using a
flow through cell for all grab sample locations.
2.2.4 Temporal Composite Sampling Methods
Temporal composite samples were collected during the January 2020 event from
locations where variability was expected to potentially be significant within a short time
frame (e.g., one day). These locations, identified in Table 2 and shown on Figure 2,
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include those within the Facility conveyance network and the intake and outfall locations,
since these locations can have highly variable dissolved and suspended constituent loads
over short time periods. Temporal composite samples were collected using a dedicated
Teledyne 6712C autosampler equipped with a rain gauge, HDPE tubing, silicon tubing,
and an HDPE sample reservoir. Field parameters were measured twice for temporal
composite samples: once during composite sampling (collected directly from the water
stream), and once after composite sampling (collected from the autosampler reservoir).
At each location, autosamplers integrated water over a four-hour sample collection
period.
In accordance with recommendations from Geosyntec (2019c), Location 8 (effluent from
the WWTP) was collected approximately 40 hours after Location 22 (influent to the
WWTP), which was initially estimated as the hydraulic residence time (HRT) of the
WWTP. Additional investigation into WWTP operations during 2020 Quarter 1 indicate
the HRT is approximately 12 days based on current operations. Due to the variability in
the HRT, Location 8 is recommended to be collected concurrently with other sample
locations during future sampling events. Location 22 is also recommended to be collected
as a temporal composite sample for future sampling events.
2.2.5 Sample Shipping, Chain of Custody, and Holding Times
Upon sample collection, each labelled, containerized sample was placed into a plastic bag
inside an insulated sample cooler with ice. Prior to shipment of the samples to the
laboratory, a chain of custody (COC) form was completed by the field sample custodian.
Sample locations, sample identification numbers, description of samples, number of
samples collected, and specific laboratory analyses to be performed on the samples were
recorded on the COC form. The COC was signed by the field personnel relinquishing
the samples to the courier and was signed by the laboratory upon receipt of the cooler.
2.2.6 Field QA/QC Samples
The following field QA/QC samples were collected and analyzed along with the January
2020 investigative samples:
Two blind field duplicates;
Two equipment blanks for the dip rod and autosampler;
One field blank; and
One trip blank.
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2.2.7 Documentation
The project field team kept a daily record of field activities during the execution of field
work including sampling notes and observations, instrument calibration records,
measured field parameters, sample COC, and shipping records.
2.3 Laboratory Methods
2.3.1 Analytical Methods
Samples were analyzed for PFAS by the following methods:
Table 3+ Laboratory Standard Operating Procedure (SOP); and
EPA Method 537 Mod (Laboratory SOP).
PFAS reported under each of these methods are listed in Table 3.
2.3.2 Laboratory and Field QA/QC
Field sampling and laboratory analyses were performed in accordance with the PFAS
Characterization Sampling Plan (Geosyntec, 2019a). Samples were collected by the field
team and shipped to TestAmerica Sacramento (TestAmerica) under COC. Laboratory
analyses were performed within the guidelines specified by the laboratory SOPs. The
collection frequency of field duplicates, matrix spike / matrix spike duplicates
(MS/MSD), trip blanks, and equipment blanks was largely in accordance with the PFAS
Characterization Sampling Plan (Geosyntec, 2019a), and deviations, listed below, were
acceptable since previous QA/QC samples have met criteria.
An equipment blank was not collected for the peristaltic pump in the January 2020 event.
Equipment blanks collected for the peristaltic pump in previous events were non-detect
for all PFAS except 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol in the April 2019
event. This is discussed further in the first quarterly report (Geosyntec, 2019b).

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3. RESULTS AND OBSERVATIONS
3.1 Data Quality
All data were reviewed using the Data Verification Module (DVM) within the LocusTM
Environmental Information Management (EIM) system, which is a commercial software
program used to manage data. Following the DVM process, a manual review of the data
was conducted. The DVM and the manual review results were combined in a data review
narrative report for each set of sample results which were consistent with Stage 2b of the
EPA Guidance for Labelling Externally Validated Laboratory Analytical Data for
Superfund Use (EPA-540-R-08-005 2009). The narrative report summarizes which
samples were qualified (if any), the specific reasons for the qualification, and any
potential bias in reported results. The data usability, in view of the project’s data quality
objectives (DQOs), was assessed and the data were entered into the EIM system.
The data were evaluated by the DVM against the following data usability checks:
 Hold time criteria;
 Field and laboratory blank contamination;
 Completeness of QA/QC samples;
 MS/MSD recoveries and the relative percent differences (RPDs) between these
spikes;
 Laboratory control sample/control sample duplicate recoveries and the RPD
between these spikes;
 Surrogate spike recoveries for organic analyses; and
 RPD between field duplicate sample pairs.
The manual review includes instrument-related QC results for calibration standards,
blanks, and recoveries. The data review process (DVM plus manual review) applied the
following data evaluation qualifiers to analysis results, as warranted:
 J – Analyte present. Reported value may not be accurate or precise;
 UJ – Analyte not detected. Reporting limit may not be accurate or precise; and
 B – Not detected substantially above the level reported in the laboratory or field
blanks.
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The data review process described above was performed for all laboratory chemical
analysis data generated for the sampling events. The DQOs were met for the analytical
results for accuracy and precision. The data collected are believed to be complete,
representative, and comparable.
3.1.1 Data Management and Reporting
Chemours’s Analytical Data Quality Management team currently uses the EIM system
for management of analytical data, xyz Site coordinate data, and field parameter data.
Validation and qualification of data are performed by AECOM who maintains the EIM
system for the Chemours Fayetteville Site. Whitebooks consisting of the data review
narratives and the laboratory analytical reports produced by AECOM summarize the
findings of the DVM and manual review process.
3.1.2 QA/QC Samples
PFAS concentrations for all field QA/QC samples in the January 2020 event are reported
in Table 4. The following observations were noted for the QA/QC samples:
January 2020
The RPD for field duplicate pairs in the January 2020 event were generally less
than 30% for all PFAS. Where RPDs were greater than 30%, the reported results
may be imprecise and were J qualified, indicating the results are estimated.
No PFAS were detected above the associated reporting limits in the January 2020
Equipment Blanks (2), Trip Blank, or Field Blank.
3.2 Investigative Sample Results
PFAS concentrations for all sample locations in the January 2020 event are provided in
Table 4. Figure 3A presents hexafluoropropylene oxide dimer acid (HFPO-DA), 2,2-
difluoro-2-(trifluoromethoxy) acetic acid (PFMOAA), and perfluoromethoxypropyl
carboxylic acid (PMPA) concentrations for locations in the January 2020 event that reach
Outfall 002; October 2019 and December 2019 results are provided for comparison.
Figure 3B presents the Total Table 3+ concentrations for locations in the January 2020
event that reach Outfall 002; October 2019 and December 2019 results are provided for
comparison. Table 5 presents a summary of the PFAS concentrations in the samples
collected to date. Table 6 provides the total daily precipitation in the area of the Facility
and the flow measured at Outfall 002 at the times of sampling events discussed in this

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report. The analytical reporting limits associated with the January 2020 data were
determined by the laboratories.
Field parameter data are provided in Appendix A. TestAmerica analytical reports and the
data review narrative whitebooks are provided in Appendix B.
3.3 Observations
The following observations are made based on sample group type for the January 2020
event.
Intake River Water at Facility [Location 1]
River intake samples continued to have modest concentrations of PFAS in the January
2020 sample event (total Table 3+ concentration: 62 ng/L). Fourteen (14) PFAS were
detected in the sample collected at Location 1 in January 2020 using the Table 3+ SOP
and EPA Method 537 Mod SOP methods (Table 4). These PFAS were generally observed
in other Site locations that derive water from the river intake. This is consistent with
trends observed over the length of the bimonthly sampling program. While there have
been some analytes detected at Location 1 that are not detected at other sampling locations
(e.g., PFMOAA has not been detected at Location 18 during any sampling event, but has
been detected at Location 1 in April 2019, August 2019, December 2019, and January
2020), PFAS concentrations observed at Location 1 tend to be reported at other sampling
locations.
Process Wastewater [Locations 18, 19A, 19B, and 23B]
Location 18 (Kuraray Process Wastewater) had measured concentrations of HFPO-DA,
PFMOAA, and PMPA similar to or lower than previous events (Figure 3A, Table 5).
Location 18 also had lower HFPO-DA, PFMOAA, and PMPA than the Intake River
Water at the Facility (Location 1) in the January 2020 sample event. Concentrations of
these compounds have generally been lower than Location 1 throughout the sampling
program, with the exception of: (1) the August 2019 event where HFPO-DA and PMPA
were higher than Location 1, and (2) the October 2019 event where HFPO-DA was higher
than Location 1. Total Table 3+ PFAS concentrations at Location 18 were lower than
previous events except for the June 2019 event (Figure 3B, Table 5).
Locations 19A (DuPont Plant 1 Process Wastewater) and 23B (Kuraray Laboratory
Process Wastewater) both had lower PFAS concentrations compared to December 2019
(Figure 3A, Figure 3B). Except for December 2019, the total Table 3+ concentration at
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Location 19A has been lower or similar to the total Table 3+ concentration measured at
Location 1 (Table 5). Location 23B has generally had total Table 3+ concentrations
higher than the total Table 3+ concentrations observed at Location 1 (Table 5).
Process water location 19B (DuPont Plant 2 Process Wastewater) had higher measured
concentrations of HFPO-DA, PFMOAA, and PMPA than previous sampling events
(Figure 3A, Table 5). The total Table 3+ PFAS concentration (510 ng/L) was also
substantially higher than previous events (range: 27 ng/L – 86 ng/L, Table 5). The total
Table 3+ concentration measured at Location 19B was lower than the total Table 3+
concentration at Location 1 (Intake River Water at Facility) during the June 2019, August
2019, October 2019, and December 2019 events and was within 15% during the April
2019 event. Future sampling results will be used to evaluate if the deviation from past
events observed in January 2020 is an ongoing occurrence.
Non-Process Wastewater [Locations 6A, 6B, 24A, 24B, and 24C]
Similar to previous sampling events, the Kuraray non-process wastewater samples
collected from the non-process wastewater only Locations (6A, 6B) contained low levels
of HFPO-DA (ranging from 9 [B qualified] to 66 ng/L); PFMOAA (ranging from <5 ng/L
[UJ qualified] to 13 ng/L); and PMPA (ranging from 19 ng/L [B qualified] to 62 ng/L).
These levels are similar to the concentrations detected at Location 1 (Intake River Water
at Facility) with the exception of two samples for HFPO-DA (66 ng/L in June 2019 for
Location 6A and 41 ng/L in April 2019 for Location 6B).
There are three sampling locations in Monomers IXM for non-process wastewater (Figure
2). During the January 2020 event, total Table 3+ PFAS concentrations at Locations 24A
and 24B were slightly lower or similar to prior sampling events (Table 5). An increase in
PFAS concentrations was observed at Location 24C in December 2019, which may have
been associated with non-routine site activities (e.g., construction of the Thermal
Oxidizer/Scrubber System or restarting of operations after the Plant Turn Around in late
October 2019). Total Table 3+ concentrations at Location 24C were significantly lower
in January 2020 than the December 2019 event, and were more similar to what was
observed in previous events (Table 5). This suggests the temporary increase in PFAS
concentrations have returned to normal levels.
Stormwater [Location 10]
Location 10 receives stormwater discharge from the Chemours Monomers/IXM area.
HFPO-DA, PFMOAA, and PMPA concentrations observed at Location 10 during the
January 2020 event were 8,300 ng/L, 22,000 ng/L, and 810 ng/L, respectively (Figure
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3A, Table 4). Several other PFAS were detected, contributing to a total Table 3+
concentration of 59,000 ng/L during January 2020 (Figure 3B, Table 4). In the five days
prior to the January 2020 sampling event, approximately 0.4 inches of rain fell at the site.
On the day of sampling there was water in the channel and the autosampler was deployed.
The Location 10 temporal composite sample was likely collected from standing water
and therefore unlikely to be hydraulically connected to Outfall 002 (i.e., water from
Location 10 was unlikely to be flowing downstream and contributing to concentrations
at Outfall 002). The concentrations observed at Location 10 were unlikely to have
contributed to Outfall 002 during the January 2020 dry weather sampling event.
Except for the October 2019 event, which was dry for the previous 35 days, rainfall
patterns at the site were similar in prior sampling events. Rainfall ranged from 0.5 to 2.7
inches in the five days prior to the sampling event for the April 2019, August 2019, and
December 2019. Previous samples at Location 10 may also have been collected from
standing water.
Prior supplemental sediment sampling and cooling water channel sampling activities
suggest sediments may be contributing to elevated PFAS concentrations (Geosyntec,
2019c). In accordance with a recommendation in Geosyntec (2019c), sediment was
removed from the cooling water channel in mid- to late-October 2019 during the Plant
Turn Around. In December 2019, concentrations at Location 10 decreased compared to
prior events (HFPO-DA: 230 ng/L; total Table 3+: 650 ng/L, Table 5). The increase
observed at Location 10 in January 2020 compared to December 2019 may be due to
ongoing PFAS contributions from stormwater inflows that were not fully flushed from
the channel.
According to the PFAS Characterization Sampling Plan (Geosyntec, 2019a), locations
that only receive stormwater should be sampled when water is flowing. Field forms have
been modified to avoid sampling stormwater locations with standing water and to obtain
the appropriate information to confirm whether samples collected at stormwater only
locations were in accordance with the PFAS Characterization Sampling Plan (Geosyntec,
2019a).
In March 2020, a targeted stormwater characterization and sampling program was
conducted, as part of Paragraph 12 efforts, to characterize potential sources observed in
the Monomers/IXM area. These data will be reported in a future quarterly report.

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Non-Process Wastewater and Stormwater [Locations 7A, 9, 15 and 21A]
In January 2020, samples that contained both non-process wastewater and stormwater
generally had PFAS detected at similar or slightly higher concentrations than the non-
process wastewater only locations. Location 15 (Combined Stormwater and Non-Contact
Cooling Water Discharge from Eastern Portion of the Facility) had the highest
concentrations of HFPO-DA, PFMOAA, and PMPA among non-process wastewater and
stormwater locations, with concentrations measured at 85 ng/L, 120 ng/L, and 23 ng/L
for HPFO-DA, PFMOAA, and PMPA, respectively. Location 15 also had the highest
Total Table 3+ concentration among non-process wastewater and stormwater locations at
1,000 ng/L. Location 15 represents the combined flow from Location 10 (total Table 3+
concentration: 59,000 ng/L) and Location 9 (total Table 3+ concentration: 540 ng/L). As
described previously, it is unlikely that Location 10 was hydraulically connected to
Location 15 for the January 2020 sampling event.
The remaining non-process wastewater and stormwater samples (Locations 7A, 9 and
21A) had HFPO-DA ranging from 7.8 to 59 ng/L, PFMOAA ranging from 12 ng/L to 15
ng/L (J qualified), and PMPA ranging from 15 to 34 ng/L in the January 2020 event.
Locations 7A and 9 are in the Open Channel to Outfall 002 and the Cooling Water
Channel, respectively, where sediment removal occurred during the Plant Turn Around
in late October 2019. These locations generally had lower PFAS concentrations in the
December 2019 and January 2020 events compared to the October 2019 event, which
was conducted prior to sediment removal. This indicates sediment removal may have
resulted in lower PFAS concentrations at these locations.
Process and Non-Process Wastewater [Locations 8, 22 and 23A]
For the process and non-process wastewater locations, samples collected from the
manhole at the Terracotta Pipe, Location 23A (Figure 3A), generally had lower HFPO-
DA, PFMOAA and PMPA concentrations than previous sampling events (Table 5).
While concentrations were lower than previous events, the Total Table 3+ concentration
measured at Location 23A was still among the highest concentrations observed during
the January 2020 event (Figure 3B, Table 4). The concentrations of HFPO-DA,
PFMOAA, and PMPA in the January 2020 event were 190 ng/L, 500 ng/L (J qualified),
and 33 ng/L respectively. The source of these concentrations is being explored via
ongoing investigation into WWTP operations. The remaining in use portions of the
Terracotta Pipe may be a continuing source of PFAS to the WWTP. Kuraray and
Chemours are planning to decommission the remaining portion of the Terracotta Pipe and
replace it with an above ground pipe. After this action is completed, future
TR0795 14 30-April-20
characterization will help assess the results of this action and whether additional sampling
or characterization is needed.
Similar to observations in previous events, during the January 2020 event, several PFAS,
including HFPO-DA, PFMOAA, and PMPA were detected at lower concentrations at
Location 22, the influent to the WWTP, compared to Location 8, the effluent of the
WWTP (Figure 3A). A recommendation from the second quarterly report was to collect
the sample from Location 8 one HRT time after the collection of the sample from
Location 22 (Geosyntec 2019c). The HRT was initially estimated at 40 hours; this delay
in sampling was implemented for the December 2019 and January 2020 events.
Additional investigation into WWTP operations during 2020 Quarter 1 indicate the HRT
is approximately 12 days. Due to the variability in the HRT, Location 8 should be
collected concurrently with other sample locations. Location 22 is recommended to be
collected as a temporal composite sample for future sampling events.
Further investigation into WWTP operations to better understand PFAS dynamics at the
WWTP is ongoing.
Process and Non-Process Wastewater and Stormwater [Locations 7B and 20]
The sample collected at Location 20 (Outfall 002) had detectable concentrations of
HFPO-DA (89 ng/L, J qualified), PFMOAA (35 ng/L, J qualified), and PMPA (27 ng/L)
in January 2020 (Figure 3A). There are two main water streams that combine to form the
total flow at Location 20: Location 7B, Open Channel after the WWTP, and Location 15,
Cooling Water Channel water from the Monomers/IXM area before it joins the Open
Channel to Outfall 002. The Location 20 total Table 3+ concentration (320 ng/L) was
higher than the total Table 3+ concentration at Location 7B (120 ng/L) but lower than the
total Table 3+ concentration at Location 15 (1,000 ng/L).
Sediment removal from the Open Channel to Outfall 002 was recommended in Geosyntec
(2019c). This occurred during the Plant Turn Around in mid- to late-October, after
collection of the October 2019 samples. Consistent with the December 2019 event, total
PFAS concentrations at Locations 7B and 20 during January 2020 were generally lower
than what was observed prior to sediment removal during the Plant Turn Around. Future
bimonthly sampling events will help continue to assess the effect of this sediment removal
from the Open Channel to Outfall 002.
Chemours is sampling routinely for PFAS concentrations at Outfall 002 (Location 20) as
required by the National Pollutant Discharge Elimination System permit for the facility.
Figures 4A, 4B, and 4C provide time trends for HFPO-DA, PFMOAA, and PMPA

TR0795 15 30-April-20
observed at Outfall 002 from January 2019 to March 2020. The results at Location 20
indicate increases in concentrations during the annual Plant Turn Around in mid- to late-
October. The increased concentrations are probably due to (1) an increase in PFAS-
containing sediment in the water column due to disturbance of the sediment during
sediment removal, and (2) the flow at Outfall 002 primarily consisting of stormwater
during the Plant Turn Around, which in some locations (e.g., Monomers/IXM area) has
shown higher PFAS concentrations compared to non-process wastewater (Geosyntec,
2019d). The flow at Outfall 002 during the Plant Turn Around was much less than under
operating conditions (Geosyntec, 2020).
PFAS concentrations measured at Outfall 002 generally decreased once the plant was
operational again in early November and continued to be under peak levels through
March 2020.
4. SAMPLING PROGRAM STATUS
A description of activities planned for the next quarter and recommendations for updates
to the sampling plan are provided below.
4.1 Activities Planned for Next Quarter
As described in the PFAS Characterization Sampling Plan (Geosyntec, 2019a), PFAS
characterization samples are to be collected from the Facility on a bimonthly basis. The
most recent sampling event occurred on April 28, 2020 and samples were collected from
locations that contained water reaching Outfall 002. The sampling event in April was
planned to be conducted as a wet (rainfall/storm) event to complement the findings from
prior dry weather sampling events; however, several attempts to collect during a rainfall
event in April were unsuccessful because: (1) remote deployment of autosamplers over
the Easter holiday weekend did not capture the rainfall event appropriately and (2) storm
events did not meet the criteria from the PFAS Characterization Sampling Plan
(Geosyntec, 2019a). Future sampling events are planned to be collected during a wet
event. The next quarterly report will be submitted in July 2020 and will provide results
for any Paragraph 11(c) samples described in Table 1 available at the time of reporting.
Activities conducted as a part of the ongoing investigation into the WWTP, as well as any
recommendations for additional sampling and analysis, will be submitted in a future
quarterly report.
TR0795 16 30-April-20
5.SUMMARY AND RECOMMENDATIONS
Pursuant to Consent Order Paragraph 11(c), Chemours conducted a sample
characterization event in 2020 Quarter 1 and these results are presented in this report.
The results from the January 2020 event continue to show the intake water contains PFAS
and this water is then distributed throughout the Facility. HFPO-DA concentrations in
the intake samples in the January 2020 event were similar to the concentrations in the
October 2019 and December 2019 events.
Several samples collected from discharges that reach Outfall 002 (Locations 8, 10, 15,
and 23A) were observed to have higher PFAS concentrations compared to other sample
locations during the January 2020 event. Supplemental targeted stormwater sampling was
conducted in 2020 Quarter 1 to continue to characterize potential stormwater-related
PFAS sources in the Monomers/IXM area; data are pending and will be reported in a
future quarterly report. Sediment removal actions in the conveyance network during the
Plant Turn Around in mid- to late-October 2019 had a beneficial effect on PFAS
concentrations in the December 2019 event, which appeared to remain continuing into
the January 2020 sampling event.
Further evaluation into the source of PFAS observed at Location 8 (effluent from the
WWTP) in the January 2020 event and during prior events is ongoing. A summary of the
supplemental WWTP sampling plan and operations investigation will be provided in a
future quarterly report.
The Terracotta Pipe feeds into the WWTP and samples collected from this pipe continue
to contain elevated concentrations of PFAS. Portions of the Terracotta Pipe have been
decommissioned and the remaining portions of the Terracotta Pipe will be
decommissioned in 2021. After this action is completed, continued characterization
consistent with the existing sampling protocol is recommended to assess the results of
this action and evaluate whether additional sampling or characterization is needed.
Other recommendations to be implemented in future bimonthly sampling events include:
(1) Location 8 should be collected concurrently with other sample locations, (2) Location
22 should be collected as a temporal composite sample, (3) samples collected from
stormwater only locations will be collected only if water is hydraulically connected to
Outfall 002, and (4) additional location-specific field forms providing information on
water conditions (e.g., standing water, water clarity) at the time of sampling will be
completed during the sampling event.

TR0795 17 30-April-20
6. REFERENCES
Environmental Protection Agency (EPA), 2009. Guidance for Labelling Externally
Validated Laboratory Analytical Data for Superfund Use. Office of Solid Waste
and Emergency Response. OSWER No. 9200.1-85, EPA-540-R-08-005
Geosyntec, 2019a. PFAS Characterization Sampling Plan. May 6, 2019.
Geosyntec, 2019b. Characterization of PFAS in Process and Non-Process Wastewater
and Stormwater: Quarterly Report #1. July 31, 2019.
Geosyntec, 2019c. Characterization of PFAS in Process and Non-Process Wastewater
and Stormwater: Quarterly Report #2. October 31, 2019.
Geosyntec, 2019d. Cape Fear River PFAS Loading Reduction Plan. August 26, 2019.
Geosyntec, 2020. Characterization of PFAS in Process and Non-Process Wastewater and
Stormwater: Quarterly Report #3. January 31, 2020.

TABLES
TABLE 1PARAGRAPH 11(b) PROPOSED SAMPLE LOCATION SUMMARYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Intake at Facility/OutfallProcess waterNon-process wastewater Stormwater1Discharge point of excess river water (i.e., water drawn from the Cape Fear River, but not used as process water or NCCW) to characterize background levels of PFASTemporal CompositeIntake River Water at Facility2 Kuraray northern leased area stormwater discharge Temporal Composite3 Chemours PPA area stormwater dischargeTemporal Composite4 Combined stormwater discharge from Kuraray northern leased area and Chemours PPA areaTemporal Composite5 Kuraray southern leased area stormwater Temporal Composite6A Kuraray southern leased area NCCW discharge - Vacuum CondenserGrab6B Kuraray southern leased area NCCW discharge - Resins AreaGrab7A Combined stormwater and NCCW discharge from western portion of the FacilityTemporal Composite7BCombined stormwater and NCCW discharge from western portion of the Facility and treated discharge from WWTPTemporal Composite8 Outfall 001 treated non-Chemours process wastewater discharge to open channel to Outfall 002 Temporal Composite9Chemours Monomers IXM NCCW and stormwater discharge including stormwater from Vinyl Ethers South and Vinyl Ethers NorthTemporal Composite10 Chemours Monomers IXM area stormwater dischargeTemporal Composite11 Stormwater discharge from portion of grassy field to north of decommissioned Chemours Teflon area Temporal Composite12 DuPont area southern drainage ditch stormwater discharge and NCCWTemporal Composite13 DuPont area northern drainage ditch stormwater discharge and NCCWTemporal Composite14 DuPont area southeast stormwater and NCCW discharge Temporal Composite15 Combined stormwater and NCCW discharge from eastern portion of the FacilityTemporal Composite16 Chemours Monomers IXM Area combined process wastewater Grab17A Chemours PPA Area waste acid trailerGrab17B Chemours PPA Area waste rinse water trailerGrab18 Kuraray process wastewater Temporal Composite*19A DuPont process wastewater, Plant 1Grab19B DuPont process wastewater, Plant 2Grab20 Outfall 002 pipe to Cape Fear River upstream of sumpTemporal Composite Outfall21A Sediment Basin SouthGrab21B Sediment Basin NorthGrab22 WWTP combined influentGrab23A Kuraray northern leased area combined process wastewater and NCCW; manhole on Terra Cotta Pipe Temporal Composite*23B Kuraray laboratory process wastewaterGrab24A Chemours Monomers IXM Vinyl Ethers South NCCWGrab24B Chemours Monomers IXM Line 3 and Line 4 Extruder NCCWGrab24C Chemours Monomers IXM Water Return Header NCCWGrabNotesSample numbers refer to locations identified in Figure 2.Temporal composite samples to be integrated over 4 hours.IXM - ion exchange membraneNCCW - non-contact cooling waterPFAS - per- and polyfluoroalkyl substances PPA - polymer processing aid WWTP - Wastewater treatment plant*Locations 18 and 23A collected as grab samples prior to December 2019Sample NumberSample Location Description Sampling MethodSample CategoryTR0795April 2020
TABLE 2SUMMARY OF SAMPLES COLLECTEDChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Intake at Facility/OutfallProcess waterNon-process wastewater StormwaterApril(Q2)June (Q2) August (Q3)October (Q4)December(Q4)January (Q1)April (Q2) June (Q2) August (Q3)1Discharge point of excess river water (i.e., water drawn from the Cape Fear River, but not used as process water or NCCW) to characterize background levels of PFASTemporal CompositeIntake River Water at Facility  2 Kuraray northern leased area stormwater dischargeTemporal CompositeNS NS NS NS NS NS3 Chemours PPA area stormwater dischargeTemporal CompositeNS NS NS NS NS NS4 Combined stormwater discharge from Kuraray northern leased area and Chemours PPA areaTemporal CompositeNS NS NS NS NS NS5 Kuraray southern leased area stormwater Temporal CompositeNS NS NS NS NS NS6A Kuraray southern leased area NCCW discharge - Vacuum CondenserGrab  6B Kuraray southern leased area NCCW discharge - Resins AreaGrab  7A Combined stormwater and NCCW discharge from western portion of the FacilityTemporal Composite    7BCombined stormwater and NCCW discharge from western portion of the Facility and treated discharge from WWTPGrab/Temporal Composite1     8 Outfall 001 treated non-Chemours process wastewater discharge to open channel to Outfall 002 Temporal Composite    9Chemours Monomers IXM NCCW and stormwater discharge including stormwater from Vinyl Ethers South and Vinyl Ethers NorthTemporal Composite    10 Chemours Monomers IXM area stormwater discharge Temporal CompositeNS11 Stormwater discharge from portion of grassy field to north of decommissioned Chemours Teflon area Temporal CompositeNS NS NS NS NS NS12 DuPont area southern drainage ditch stormwater discharge and NCCW Temporal CompositeNS NSNSNS13 DuPont area northern drainage ditch stormwater discharge and NCCWTemporal CompositeNS NS NS NS NS NS14 DuPont area southeast stormwater and NCCW discharge Temporal Composite   NS15 Combined stormwater and NCCW discharge from eastern portion of the FacilityTemporal Composite    16 Chemours Monomers IXM Area combined process wastewater GrabNS2NS2NS2NS217A Chemours PPA Area waste acid trailerGrabNS2NS2NS2NS217B Chemours PPA Area waste rinse water trailerGrabNS2NS2NS2NS218 Kuraray process wastewater Grab/Temporal Composite3319A DuPont process wastewater, Plant 1Grab   19B DuPont process wastewater, Plant 2Grab   20 Outfall 002 pipe to Cape Fear River upstream of sump Temporal Composite Outfall  21A Sediment Basin SouthGrab    21B Sediment Basin NorthGrab4NS4NS4NS4NS4NS4NS422 WWTP combined influentGrab    23A Kuraray northern leased area combined process wastewater and NCCW; manhole on Terra Cotta PipeGrab/Temoral Composite3323B Kuraray laboratory process wastewaterGrab5NS5NS24A Chemours Monomers IXM Vinyl Ethers South NCCW Grab NS624B Chemours Monomers IXM Line 3 and Line 4 Extruder NCCWGrab  24C Chemours Monomers IXM Water Return Header NCCWGrabNS6NotesSample numbers refer to locations identified in Figure 2.All temporal composite samples were integrated over 4 hours1 - Location 7B was collected as a grab sample for the April and June 2019 events due to limited autosampler availability. This location was collected as a temporal composite sample for the August 2019 event and will continue to be collected in this manner for future sampling events.2 - Locations 16, 17A, and 17B were not sampled in 2019 Quarter 3 (2019 Q3), 2019 Quarter 4 (2019 Q4), or 2020 Quarter 1 (2020 Q1) because they were removed from the work plan.3 - Locations 18 and 23A were collected as four grab samples over four hours during the August 2019 event to assess temporal variability at these locations. Due to temporal variability, future samples were collected as temporal composites.4 - Location 21B was not sampled in 2019 Quarter 2 (2019 Q2), 2019 Q3, 2019 Q4, or 2020 Q1 because this sediment pond was not in use at the time of sampling.5 - Location 23B was added to the Sampling Plan after the April 2019 event. It was sampled during the June 2019 event was but was not sampled during the August 2019 event because it had insufficient water to collect a sample.6 - Locations 24A and 24C were not sampled in October 2019 because these locations did not have flow due to Plant Turn Around. IXM - ion exchange membraneNCCW - non-contact cooling waterNS - Not sampled because there was insufficient water to collect a samplePFAS - per- and polyfluoroalkyl substances PPA - polymer processing aid WWTP - Wastewater treatment plantSamples collected on 24 April 2019 (April 2019 event), 27 June 2019 & 28 June 2019 (June 2019 event), 21 August 2019 & 22 August 2019 (August 2019 event), 9 October 2019 & 10 October 2019 (October 2019 event), 20 December 2019 & 23 December 2019 (December 2019 event), and 29 January 2019 & 31 January 2020 (January 2020 event).Sample NumberSample Location Description Sampling Method2019Sample CategorySample Collected2020TR0795April 2020
TABLE 3
PFAS AND ASSOCIATED ANALYTICAL METHODS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
HFPO-DA* Hexafluoropropylene oxide dimer acid 13252-13-6 C6HF11O3
PFMOAA Perfluoro-2-methoxyaceticacid 674-13-5 C3HF5O3
PFO2HxA Perfluoro(3,5-dioxahexanoic) acid 39492-88-1 C4HF7O4
PFO3OA Perfluoro(3,5,7-trioxaoctanoic) acid 39492-89-2 C5HF9O5
PFO4DA Perfluoro(3,5,7,9-tetraoxadecanoic) acid 39492-90-5 C6HF11O6
PFO5DA Perfluoro-3,5,7,9,11-pentaoxadodecanoic acid 39492-91-6 C7HF13O7
PMPA Perfluoromethoxypropyl carboxylic acid 13140-29-9 C4HF7O3
PEPA Perfluoroethoxypropyl carboxylic acid 267239-61-2 C5HF9O3
PFESA-BP1 Byproduct 1 29311-67-9 C7HF13O5S
PFESA-BP2 Byproduct 2 749836-20-2 C7H2F14O5S
Byproduct 4 Byproduct 4 N/A C7H2F12O6S
Byproduct 5 Byproduct 5 N/A C7H3F11O7S
Byproduct 6 Byproduct 6 N/A C6H2F12O4S
NVHOS Perfluoroethoxysulfonic acid 1132933-86-8 C4H2F8O4S
EVE Acid Perfluoroethoxypropionic acid 69087-46-3 C8HF13O4
Hydro-EVE Acid Perfluoroethoxsypropanoic acid 773804-62-9 C8H2F14O4
R-EVE R-EVE N/A C8H2F12O5
PES Perfluoroethoxyethanesulfonic acid 113507-82-7 C4HF9O4S
PFECA B Perfluoro-3,6-dioxaheptanoic acid 151772-58-6 C5HF9O4
PFECA-G Perfluoro-4-isopropoxybutanoic acid 801212-59-9 C12H9F9O3S
10:2 FTS 10:2-fluorotelomersulfonate acid 120226-60-0 C12H5F21O3
F-53B Minor F-53B Minor 83329-89-9 C10HClF20O4S
8:2 FTS 8:2 fluorotelomersulfonic acid 39108-34-4 C10H5F17O3S
4:2 FTS 4:2 fluorotelomersulfonic acid 757124-72-4 C6H5F9O3S
NEtPFOSAE 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 1691-99-2 C8F17SO2N(C2H5)CH2CH2OH
NMePFOSAE 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 24448-09-7 C8F17SO2N(CH3)CH2CH2OH
6:2 FTS 6:2 fluorotelomer sulfonate 27619-97-2 C8H5F13SO3
F-53B Major F-53B Major 73606-19-6 C8HClF16O4S
ADONA Ammonium 4,8-dioxa-3H-perfluorononanoate 958445-44-8 CF3O(CF2)3OCHFCF2COONH4
NaDONA Sodium 4,8-dioxa-3H-perfluorononanoate EVS1361 CF3O(CF2)3OCHFCF2COONa
NEtFOSAA N-ethyl perfluorooctane sulfonamidoacetic acid 2991-50-6 C8F17SO2N(C2H5)CH2COOH
NEtPFOSA N-ethylperfluoro-1-octanesulfonamide 4151-50-2 C8F17SO2NHCH2CH3
NMePFOSA N-methyl perfluoro-1-octanesulfonamide 31506-32-8 C8F17SO2NHCH3
NMeFOSAA N-methyl perfluorooctane sulfonamidoacetic acid 2355-31-9 C8F17SO2N(CH3)CH2COOH
PFBS Perfluorobutane sulfonic acid 375-73-5 C4HF9SO
PFBA Perfluorobutanoic acid 375-22-4 C4HF7O2
PFDS Perfluorodecane sulfonic acid 335-77-3 C10HF21O3S
PFDA Perfluorodecanoic acid 335-76-2 C10HF19O2
PFDOS Perfluorododecane sulfonic acid 79780-39-5 C12HF25O3S
PFDoA Perfluorododecanoic acid 307-55-1 C12HF23O2
PFHpS Perfluoroheptane sulfonic acid 375-92-8 C7HF15O3S
PFHpA Perfluoroheptanoic acid 375-85-9 C7HF13O2
PFHxDA Perfluorohexadecanoic acid 67905-19-5 C16HF31O2
PFHxS Perfluorohexane sulfonic acid 355-46-4 C6HF13SO3
PFHxA Perfluorohexanoic acid 307-24-4 C6HF11O2
PFNS Perfluorononanesulfonic acid 68259-12-1 C9HF19O3S
PFNA Perfluorononanoic acid 375-95-1 C9HF17O2
PFODA Perfluorooctadecanoic acid 16517-11-6 C18HF35O2
PFOSA Perfluorooctane sulfonamide 754-91-6 C8H2F17NO2S
PFPeS Perfluoropentane sulfonic acid 2706-91-4 C5HF11O3S
PFPeA Perfluoropentanoic acid 2706-90-3 C5HF9O2
PFTeA Perfluorotetradecanoic acid 376-06-7 C14HF27O2
PFTriA Perfluorotridecanoic acid 72629-94-8 C13HF25O2
PFUnA Perfluoroundecanoic acid 2058-94-8 C11HF21O2
PFOA Perfluorooctanoic acid 335-67-1 C8HF15O
PFOS Perfluorooctane sulfonic acid 1763-23-1 C8HF17SO3
Notes:
*Depending on the laboratory, HFPO-DA may also appear on the EPA Method 537 Mod analyte list
EPA - Environmental Protection Agency
PFAS - per- and polyfluoroalkyl substances
SOP - Standard Operating Procedure
EPA Method 537
Mod
CASN
Table 3+ Lab SOP
Analytical Method Common Name Chemical Name Chemical Formula
TR0795 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID LOC1 LOC6A LOC6B
Sampling Event January 2020 January 2020 January 2020
Field Sample ID STW-LOC1-012920 STW-LOC6A-012920 STW-LOC6B-012920
Date Sampled 1/29/2020 1/29/2020 1/29/2020
Analytical Laboratory TestAmerica TestAmerica TestAmerica
QA/QC FS FS FS
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)13 36 25
PFMOAA 12 13 J 8.9 J
PFO2HxA 6.1 16 6.1
PFO3OA <2 <2 <2
PFO4DA <2 <2 <2
PFO5DA <2 <2 <2
PMPA 17 62 26
PEPA <20 24 <20
PFESA-BP1 <2 <2 <2
PFESA-BP2 <2 <2 <2
Byproduct 4 5.5 J 21 J 3.4 J
Byproduct 5 6.1 J 7.3 J 5.1 J
Byproduct 6 <2 <2 <2
NVHOS <2 <2 <2
EVE Acid <2 <2 <2
Hydro-EVE Acid <2 <2 <2
R-EVE 2.3 J 7.8 J <2
PES <2 <2 <2
PFECA B <2 <2 <2
PFECA-G <2 <2 <2
Total Table 3+ Compounds* 62 190 75
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate <2 <2 <2
F-53B Minor (11Cl-PF3OUdS) <2 <2 <2
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) <20 <20 <20
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) <20 <20 <20
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <2 <2 <2
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <4 <4 <4
6:2 Fluorotelomer sulfonate <20 <20 <20
F-53B Major (9Cl-PF3ONS) <2 <2 <2
ADONA <2.1 <2.1 <2.1
NaDONA <2.1 <2.1 <2.1
N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20
N-ethylperfluoro-1-octanesulfonamide <2 <2 <2
N-methyl perfluoro-1-octanesulfonamide <2 <2 <2
N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20
Perfluorobutane Sulfonic Acid 2.2 2.5 2.4
Perfluorobutanoic Acid <2 4 3.4
Perfluorodecane Sulfonic Acid <2 <2 <2
Perfluorodecanoic Acid <2 <2 <2
Perfluorododecane sulfonic acid (PFDoS) <2 <2 <2
Perfluorododecanoic Acid <2 <2 <2
Perfluoroheptane sulfonic acid (PFHpS) <2 <2 <2
Perfluoroheptanoic Acid 4.8 5.3 4.7
Perfluorohexadecanoic acid (PFHxDA) <2 <2 <2
Perfluorohexane Sulfonic Acid 2.4 2.9 2.6
Perfluorohexanoic Acid 6.3 7 6.3
Perfluorononanesulfonic acid <2 <2 <2
Perfluorononanoic Acid <2 <2 <2
Perfluorooctadecanoic acid <2 <2 <2
Perfluorooctane Sulfonamide <2 <2 <2
Perfluoropentane sulfonic acid (PFPeS) <2 <2 <2
Perfluoropentanoic Acid 5.4 5.6 5.5
Perfluorotetradecanoic Acid <2 <2 <2
Perfluorotridecanoic Acid <2 <2 <2
Perfluoroundecanoic Acid <2 <2 <2
PFOA 3.8 5.3 4.2
PFOS 5.4 8.6 5.9
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
TR0795 Page 1 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC7A LOC7B LOC8
January 2020 January 2020 January 2020
STW-LOC7A-012920 STW-LOC7B-012920 STW-LOC8-013120
1/29/2020 1/29/2020 1/31/2020
TestAmerica TestAmerica TestAmerica
FS FS FS
7.8 19 210
12 17 280
6 9.4 100
<2 2 <58
<2 <2 <79
<2 <2 76
15 24 1,000
<20 <20 <47
<2 <2 29
<2 <2 200 J
4.7 J 8.9 J <160
6 J 39 J 280 J
<2 <2 <15
<2 <2 <54
<2 <2 <24
<2 <2 <28
<2 3.6 J <70
<2 <2 <46
<2 <2 <60
<2 <2 <41
52 120 2,200
<2 <2 <2
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2 <2 <2
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
2 2.2 2.7
2.1 2 3.5
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
3.9 3.9 6.7
<2 <2 <2
2.5 2.8 <2
5 6.3 11
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
5 5.1 13
<2 <2 <2
<2 <2 <2
<2 <2 <2
3.9 4.6 16
6.8 6 <2
TR0795 Page 2 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC9 LOC10 LOC15
January 2020 January 2020 January 2020
STW-LOC9-012920 STW-LOC10-012920 STW-LOC15-012920
1/29/2020 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica
FS FS FS
59 8,300 85
14 22,000 120
14 23,000 140
4.1 870 8.2
3.6 750 6.5
4.1 340 5.3
18 810 23
<20 420 <20
160 J 650 100
8.7 300 8.5
80 J 280 120 J
150 J 380 J 360 J
<2 11 <2
3.1 180 5.4
10 110 7.9
2.6 140 2.7
10 J 170 22 J
<2 <9.2 <2
<2 <12 <2
<2 <8.2 <2
540 59,000 1,000
<2 <2 <2
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2 <2 <2
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
2.1 <2 2.2
3.2 56 2.4
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
4.8 17 4.7
<2 <2 <2
2.8 <2 2.6
6 19 5.5
<2 <2 <2
<2 3.9 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
9.8 85 10
<2 <2 <2
2.2 <2 <2
<2 <2 <2
4.3 17 4
6.2 3.9 6.2
TR0795 Page 3 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC18 LOC19A LOC19B LOC20
January 2020 January 2020 January 2020 January 2020
STW-LOC18-012920 STW-LOC19A-012920 STW-LOC19B-012920 STW-LOC20-012920
1/29/2020 1/29/2020 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
FS FS FS FS
6 J 19 J 75 89 J
<5 8.7 J 14 J 35 J
3.7 J 9.3 230 37
<2 2.9 19 3.1
<2 <2 <2 2.1
<2 UJ <2 <2 <2
<10 UJ 27 120 27
<20 UJ <20 46 <20
<2 2.3 2.9 18
<2 <2 <2 2.9
<2 <2 <2 21 J
<2 4.8 J 5.3 J 85 J
<2 <2 <2 <2
<2 UJ <2 <2 2.6
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
9.7 74 510 320
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<20 <20 UJ <20 <20
<20 <20 UJ <20 <20
<2 <2 UJ <2 <2
<4 <4 UJ <4 <4
<20 <20 UJ <20 <20
<2 <2 UJ <2 <2
<2.1 UJ <2.1 UJ <2.1 <2.1
<2.1 UJ <2.1 UJ <2.1 <2.1
<20 <20 UJ <20 <20
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<20 <20 UJ <20 <20
<2 <2 UJ <2 2.2
110 J 8.6 J 5.9 3.8
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 2.9 J 3.5 4.1
<89 UJ <2 UJ <2 <2
<2 <2 UJ <2 2.5
<2 UJ 4.3 J 5.8 5.5
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<49 UJ 3.2 J 7.9 5.9
<2 UJ <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ <2 <2
<2 4.4 J 3.2 4.3
<2 7 J <2 6.6
TR0795 Page 4 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC20 LOC21A LOC22 LOC23A
January 2020 January 2020 January 2020 January 2020
STW-LOC20-012920-D STW-LOC21A-012920 STW-LOC22-012920 STW-LOC23A-012920
1/29/2020 1/29/2020 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
DUP FS FS FS
66 J 31 <150 190
31 15 J <5 UJ 500 J
36 15 10 J 130
3 2.1 3.5 46
2.1 <2 329
<2 <2 <2 UJ 13
31 34 <10 UJ 33
<20 <20 <20 <20
18 <2 58 4,400
2.8 <2 18 200
22 J <2 40 J 140
82 J 8.7 J 260 J 2,000 J
<2 <2 <2 <2
2.3 <2 <2 UJ 19
<2 <2 <2 52
<2 <2 <2 25
7.5 J <2 <2 20
<2 <2 <2 <2.3
<2 <2 <2 <3
<2 <2 <2 <2
300 110 390 7,800
<2 <2 <19 <2
<2 <2 <32 <2
<20 <20 <200 <20
<20 <20 <520 <20
<2 <2 <85 <2
<4 <4 <140 <4
<20 <20 <200 <20
<2 <2 <24 <2
<2.1 <2.1 <19 <2.1
<2.1 <2.1 <19 <2.1
<20 <20 <190 <20
<2 <2 <87 <2
<2 <2 <43 <2
<20 <20 <310 <20
2.2 2.6 <20 3
3.2 5.2 79 45
<2 <2 <32 <2
<2 <2 <31 <2
<2 <2 <45 <2
<2 <2 <55 <2
<2 <2 <19 <2
4 5.2 <25 9.1
<2 <2 <89 3.3
2.5 3.3 28 4
5.6 8.2 <58 12
<2 <2 <16 <2
<2 <2 <27 <2
<2 <2 <46 <2
<2 <2 <35 <2
<2 <2 <30 <2
5.7 7.9 <49 13
<2 <2 <29 3.6
<2 <2 <130 2.4
<2 <2 <110 <2
4.2 4.7 <85 43
6.5 6.9 <54 9.7
TR0795 Page 5 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC23B LOC24A LOC24A LOC24B
January 2020 January 2020 January 2020 January 2020
STW-LOC23B-012920 STW-LOC24A-012920 STW-LOC24A-012920-D STW-LOC24B-012920
1/29/2020 1/29/2020 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
FS FS DUP FS
31 11 8.7 12
11 J 9.9 J 9.3 8.2 J
7 6.5 6.2 6.2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
26 46 47 24
<20 23 25 <20
37 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
34 J 5.4 J 5.2 J 3.7 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
150 100 100 54
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
2 2.1 2 <2
3.3 4.5 4.2 3.9
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 UJ <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
2.9 3.8 3.5 2.8
<2 <2 <2 <2
<2 2.5 2.4 2.1
3.8 5.4 5.1 4.1
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 UJ <2 <2
4 4.8 4.5 4.3
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
12 3.9 3.5 3
5.3 6.3 6.2 5.3
TR0795 Page 6 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
LOC24C EB EB FBLK
January 2020 January 2020 January 2020 January 2020
STW-LOC24C-012920 STW-LOCEB1-012920 STW-LOCEB2-012920 STW-LOCFB-012920
1/29/2020 1/29/2020 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
FS EB EB FB
11 <4 <4 <4
10 J <5 UJ <5 UJ <5 UJ
7.2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
26 <10 <10 <10
<20 <20 <20 <20
4.4 <2 <2 <2
<2 <2 <2 <2
8 J <2 <2 <2
44 J <2 <2 <2
<2 <2 <2 <2
4.7 <2 <2 <2
5.6 <2 <2 <2
2.2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
120 0 0 0
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
<2 <2 <2 <2
3.3 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
2.8 <2 <2 <2
<2 <2 <2 <2
2 <2 <2 <2
3.9 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
4 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
2.8 <2 <2 <2
5.5 <2 <2 <2
TR0795 Page 7 of 8 April 2020
TABLE 4
ANALYTICAL RESULTS - 2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limi
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or
precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory
or field blanks.
TB
January 2020
STW-LOCTB-012920
1/29/2020
TestAmerica
TB
<4
<5
<2
<2
<2
<2
<10
<20
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
0
<2
<2
<20
<20
<2
<4
<20
<2
<2.1
<2.1
<20
<2
<2
<20
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
<2
TR0795 Page 8 of 8 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
Field Sample ID DSTW-LOC1-
042419
STW-LOC1-
062819
STW-LOC1-
082219
STW-LOC1-
101019
STW-LOC-1-
122019
STW-LOC-1-
122019
Date Sampled 4/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019 1/29/2020
Analytical Laboratory TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
QA/QC------------
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)14 18 30 12 9.8 B 13
PFMOAA 7 J <5 25 <5 UJ 14 12
PFO2HxA 12 J 14 21 7.5 6.9 6.1
PFO3OA <2 UJ 2.5 3.3 <2 <2 <2
PFO4DA <2 UJ <2 <2 <2 <2 <2
PFO5DA <2 UJ <2 <2 <2 <2 <2
PMPA 21 J 23 37 27 23 B 17
PEPA <20 UJ <20 <20 <20 <20 <20
PFESA-BP1 <2 UJ <2 <2 <2 <2 <2
PFESA-BP2 <2 UJ <2 <2 <2 <2 <2
Byproduct 4 11 J 2.8 J 15 J 8.5 J 5 J 5.5 J
Byproduct 5 3.2 J <2 11 J 2.3 J 7.1 J 6.1 J
Byproduct 6 <2 UJ <2 <2 <2 <2 <2
NVHOS <2 UJ <2 5.1 5.8 <2 <2
EVE Acid <2 UJ <2 <2 <2 <2 <2
Hydro-EVE Acid <2 UJ <2 <2 <2 <2 <2
R-EVE 6.4 J <2 4 J <2 <2 2.3 J
PES <2 UJ <2 <2 <2 <2 <2
PFECA B <2 UJ <2 <2 <2 <2 <2
PFECA-G <2 UJ <2 <2 <2 <2 <2
Total Table 3+ Compounds* 75 60 150 63 66 62
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate <2.0 <2 <2 <2 <2 <2
F-53B Minor (11Cl-PF3OUdS) -- -- <2 <2 <2 <2
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) <20 <20 <20 <20 <20 <20
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) <20 <20 <20 <20 <20 <20
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <60 <2 <2 <2 <2 <2
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <110 <2 <4 <4 <4 <4
6:2 Fluorotelomer sulfonate <20 <20 <20 <20 <20 <20
F-53B Major (9Cl-PF3ONS)-- --<2 <2 <2 <2
ADONA <2.1 <2.1 <2.1 <2.1 <2.1 <2.1
NaDONA <2.1 <2.1 <2.1 <2.1 <2.1 <2.1
N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 <20 <20
N-ethylperfluoro-1-octanesulfonamide <37 2.7 <2 <2 <2 <2
N-methyl perfluoro-1-octanesulfonamide <35 <2 <2 <2 <2 <2
N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 <20 <20
Perfluorobutane Sulfonic Acid 2.3 3.7 4 6.5 3.1 2.2
Perfluorobutanoic Acid 7.1 8.3 8.5 19 3.6 <2
Perfluorodecane Sulfonic Acid <2.0 <2 <2 <2 <2 <2
Perfluorodecanoic Acid <2.0 <2 <2 <2 <2 <2
Perfluorododecane sulfonic acid (PFDoS) <2.0 <2 <2 <2 <2 <2
Perfluorododecanoic Acid <2.0 <2 <2 <2 <2 <2
Perfluoroheptane sulfonic acid (PFHpS) <2.0 <2 <2 <2 <2 <2
Perfluoroheptanoic Acid 7142032 8.8 4.8
Perfluorohexadecanoic acid (PFHxDA) <2.0 <2 <2 <2 <2 <2
Perfluorohexane Sulfonic Acid 3.3 5 5.6 8.7 3 2.4
Perfluorohexanoic Acid 9.2 21 26 51 15 6.3
Perfluorononanesulfonic acid <2.0 <2 <2 <2 <2 <2
Perfluorononanoic Acid <2.0 <2 <2 <2 <2 <2
Perfluorooctadecanoic acid <2.0 <2 <2 <2 <2 <2
Perfluorooctane Sulfonamide <2.0 <2 <2 <2 <2 <2
Perfluoropentane sulfonic acid (PFPeS) <2.0 <2 <2 <2 <2 <2
Perfluoropentanoic Acid 7172648 9.7 5.4
Perfluorotetradecanoic Acid <2.0 <2 <2 <2 <2 <2
Perfluorotridecanoic Acid <2.0 <2 <2 <2 <2 <2
Perfluoroundecanoic Acid <2.0 <2 <2 <2 <2 <2
PFOA 8.1 8.5 8.7 10 5.4 3.8
PFOS 12 11 12 14 6.8 5.4
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
1
B - Not detected substantially above the level reported in the laboratory or
field blanks.
TR0795 Page 1 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC6A-
042419
STW-LOC-6A-
062719
STW-LOC6A-
082119
STW-LOC6A-
100919
STW-LOC-6A-
122019
STW-LOC6A-
012920
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
13 66 19 17 30 B 36
<5 UJ <5 UJ <5 <5 UJ 13 13 J
11 J 11 J 12 12 7.7 16
<2 UJ <2 UJ <2 2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
24 J 23 J 27 37 53 B 62
<20 UJ <20 UJ <20 <20 22 24
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
8.1 J 7.9 J <2 15 J 6.5 J 21 J
4.3 J <2 UJ 5.1 J 2.9 J 6.4 J 7.3 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ 5.3 6.6 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
2.6 J 4 J 3.9 6 J 4.2 J 7.8 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
63 110 72 99 140 190
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20 <20 <20 <20 <20 <20
<20 <20 <20 <20 <20 <20
<60 <60 <2 <2 <2 <2
<110 <110 <4 <4 <4 <4
<20 <20 <20 <20 <20 <20
-- --<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20 <20
<37 UJ<37<2<2<2<2
<35 UJ<35<2<2<2<2
<20 <20 <20 <20 <20 <20
2.43.64.35.93.12.5
7.6118.718<2 4
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.4132136115.3
<2.0 <2 <2 <2 <2 <2
3.75.36.58.93.62.9
9.222274816 7
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.4182745115.6
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.6 8.3 11 12 6.1 5.3
14 14 18 18 9.4 8.6
6A
TR0795 Page 2 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC6B-
042419
STW-LOC-6B-
062719 STW-LOC6B-082119 STW-LOC6B-100919
STW-LOC-6B-
122019 STW-LOC6B-012920
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
41 24 17 17 9 B 25
<5 UJ <5 UJ <5 <5 UJ 13 8.9 J
11 J 13 J 11 11 6.4 6.1
<2 UJ <2 UJ <2 2.1 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
23 J 23 J 37 30 19 B 26
<20 UJ <20 UJ <20 <20 <20 <20
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
11 J 13 J 12 J 11 J <2 3.4 J
3.6 J <2 UJ 2.5 J 2.8 J 6.4 J 5.1 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ 4.4 6.5 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
6.6 J 5.8 J 3.2 J 4.7 J <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
96 79 87 85 54 75
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60 <60 <2 <2 <2 <2
<110 <110 <4 <4 <4 <4
<20<20<20<20<20<20
-- --<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37 UJ<37<2<2<2<2
<35 UJ<35<2<2<2<2
<20<20<20<20<20<20
2.3 3.6 4.3 6.9 3.3 2.4
7.1 9.2 8.4 18 <2 3.4
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.41320358.24.7
<2.0 <2 <2 <2 <2 UJ <2
3.6 5.6 5.8 8.5 3.4 2.6
9.3202748166.3
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.2172646105.5
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
9.3 9.6 8.8 11 4.9 4.2
14 16 15 16 7.2 5.9
6B
TR0795 Page 3 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC7A-
042419
STW-LOC7A-
062819
STW-LOC7A-
082219
STW-LOC7A-
101019
STW-LOC-7A-
122019
STW-LOC7A-
012920
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
14 22 13 16 9.3 B 7.8
8 J <5 6.7 <5 UJ 13 12
12 J 14 9.4 10 6.7 6
<2 UJ 2.2 <2 <2 <2 <2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
24 J 22 23 28 21 B 15
<20 UJ <20 <20 <20 <20 <20
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
5.3 J 3.4 J 11 J 11 J <2 4.7 J
4.2 J <2 3.1 J 3.2 J 8.2 J 6 J
<2 UJ<2<2<2<2<2
<2 UJ <2 4.5 6.6 <2 <2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
3.9 J <2 <2 4.8 J <2 <2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
71 64 71 80 58 52
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60<2<2<2<2<2
<110 <2 <4 <4 <4 <4
<20<20<20<20<20<20
-- --<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37<2<2<2<2<2
<35<2<2<2<2<2
<20<20<20<20<20<20
2.3 3.6 4.1 4.9 3 2
78.88.81842.1
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.41420338.63.9
<2.0 <2 <2 <2 <2 <2
3.45.26.18.83.32.5
8.320264916 5
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
2 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
6.519264611 5
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.8 9.4 8.9 11 5.5 3.9
14 15 15 15 8.1 6.8
7A
TR0795 Page 4 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 August 2019
DSTW-LOC7B-042419 STW-LOC7B-062719 STW-LOC7B-062719-D STW-LOC7B-082219
04/24/2019 06/27/2019 06/27/2019 8/22/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- -- Field Duplicate --
21 18 18 42
51 J 69 65 1,100
26 J 25 25 300
6 J 10 10 100
2.5 J 9.7 10 64
<2 UJ 24 26 35
23 J 21 19 45
<20 UJ <20 <20 <20
<2 UJ <2 26.9
7 J 120 130 180
19 J 73 J 71 J 110 J
53 J 490 J 470 J 1,100 J
<2 UJ 2.2 2.3 4.1
2.1 J 9.2 9.8 48
<2 UJ<2<2<2
<2 UJ <2 <2 8.7
4 J 3.7 J <2 11 J
<2 UJ<2<2<2
<2 UJ<2<2<2
<2 UJ<2<2<2
210 870 860 3,200
<2.0 <2 <2 <2
-- -- <2
<20 <20 <20 <20
<20 <20 <20 <20
900 J <2 <2 <2
<110 <2 <2 <4
<20 <20 <20 <20
-- --<2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<37 UJ <2 <2 <2
<35<2<2<2
<20 <20 <20 <20
2.3 3.4 3.7 4
5.2 8.9 8.7 10
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
7 141520
<2.0 <2 <2 <2
3.55.45.55.7
8.2212126
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
7.2181727
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
7.98.99.39.6
14 15 16 14
June 2019
7B
TR0795 Page 5 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
October 2019 December 2019 January 2020
STW-LOC7B-101019 STW-LOC-7B-122019 STW-LOC7B-012920
10/10/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica
-- -- --
23 29 B 19
24 J 25 17
17 9.2 9.4
5.7 2.1 2
4.3 <2 <2
9.8 <2 <2
35 29 B 24
<20 <20 <20
<2 <2 <2
71 3.1 <2
22 J 6.8 J 8.9 J
140 J 71 J 39 J
<2 <2 <2
13 2.1 <2
<2 <2 <2
<2 <2 <2
5.5 J <2 3.6 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
370 180 120
<2 <2 <2
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2 <2 <2
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
6.6 3 2.2
19 4.2 2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
33 8.6 3.9
<2 <2 <2
8.7 3.3 2.8
49 16 6.3
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
46 11 5.1
<2 <2 <2
<2 <2 <2
<2 <2 <2
11 7.1 4.6
14 7.6 6
7B
TR0795 Page 6 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC8-
042419 STW-LOC8-062819 STW-LOC8-082219 STW-LOC8-101019 STW-LOC-8-122319 STW-LOC8-013120
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/23/2019 1/31/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
120 100 460 120 500 210
1,200 J <21 20,000 240 J 220 280
480 360 4,900 95 J 73 100
150 200 1,700 48 16 <58
<79 210 1,000 48 13 J <79
51 520 480 85 J 14 76
<570 <57 160 38 130 1,000
<47 34 72 28 91 <47
<27 37 58 9.9 12 29
240 2,600 1,700 550 61 200 J
<160 760 340 37 J 26 J <160
690 3,500 4,600 600 J 620 J 280 J
<15 49 43 12 <2 <15
<54 190 530 54 16 <54
<24 <2.4 <4.9 <2 <2 <24
<28 18 140 9.2 2.8 <28
<70 29 J 39 J 7 J 7.8 <70
<46 <4.6 <9.2 <2 <2 <46
<60 <6 <12 <2 <2 <60
<41 <4.1 <8.2 <2 <2 <41
2,900 8,600 36,000 2,000 1,800 2,200
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60<6<2<2<2<2
<110<11<4<4<4<4
<20<20<20<20<20<20
-- --<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37<3.7<2<2<2<2
<35<3.5<2<2<2<2
<20<20<20<20<20<20
2.44.34.55.23.12.7
5.7182426123.5
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
3.7162226116.7
<2.0 <2 <2 <2 <2 UJ <2
3.14.74.64.5<2 <2
4.92531401711
<2.0 <2 <2 <2 <2 <2
<2.0 4.8 3.2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
4.22239432113
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.212169.12816
<2.0 2.9 2.7 2.2 <2 <2
8
TR0795 Page 7 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC9-
042419 STW-LOC9-062819 STW-LOC9-082219 STW-LOC9-101019 STW-LOC-9-122019 STW-LOC9-012920
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
29 77 55 2,400 28 B 59
8.8 J <21 25 J 38 J 14 14
17 J 20 28 500 14 14
4.5 J 5.9 5.9 160 5 4.1
3.6 J <7.9 2.3 45 3.8 J 3.6
<2 UJ <3.4 <2 26 3.2 4.1
25 J <57 48 110 27 B 18
<20 UJ <20 <20 27 <20 <20
28 J 2,300 86 170 6.6 160 J
3.4 J 120 8 50 <2 8.7
50 J 110 81 J 300 J 8.3 J 80 J
83 J 190 160 J 1,500 49 J 150 J
<2 UJ <2 <2 7.6 <2 <2
2.8 J611163<2 3.1
11 J 57 19 110 3.7 10
<2 UJ 6.7 2.1 34 <2 2.6
7.5 J 53 17 J 91 J 3.5 J 10 J
<2 UJ<4.6<2<2<2<2
2.8 J <6 <2 <2 <2 <2
<2 UJ<4.1<2<2<2<2
280 3,000 550 5,600 170 540
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20 <20 <20 <20 <20 <20
<20 <20 <20 <20 <20 <20
<60<6<2<2<2<2
<110<11<4<4<4<4
<20 <20 41 <20 <20 <20
-- --<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20 <20
<37<3.7<2<2<2<2
<35<3.5<2<2<2<2
<20 <20 <20 <20 <20 <20
2.2 3.7 4.1 6.3 3.1 2.1
6.9 9.2 9.1 54 4.5 3.2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.51319389.74.8
<2.0 <2 <2 <2 <2 <2
3.3 5.5 6.1 9.2 3.3 2.8
9 21265516 6
<2.0 <2 <2 <2 <2 <2
<2.0 2 <2 3 <2 UJ <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.6192794129.8
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ 2.2
<2.0 <2 <2 <2 <2 UJ <2
8.9 9.3 8.9 12 6.7 4.3
14 15 15 16 7.8 6.2
9
TR0795 Page 8 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC10-042419 -- STW-LOC10-082219 STW-LOC10-101019 STW-LOC-10-122019 STW-LOC10-012920
4/24/2019 -- 8/22/2019 10/10/2019 12/20/2019 1/29/2020
TestAmerica -- TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
320 -- 1,700 15,000 230 8,300
58 J -- 490 J 1,700 34 22,000
88 J -- 250 7,400 32 23,000
24 J -- 88 3,300 12 870
20 J -- 87 2,100 11 J 750
9.1 J -- 42 1,900 9.2 340
260 J -- 180 1,300 58 810
97 J -- 63 590 23 420
78 J -- 380 23,000 40 650
19 J -- 510 3,000 8.8 300
190 J -- 870 1,200 35 J 280
280 J -- 730 J 3,400 100 J 380 J
<2 UJ -- 23 78 <2 11
14 J -- 460 270 7 180
8.5 J -- 62 680 8.5 110
8.5 J -- 72 930 4 140
150 J -- 280 J 570 38 J 170
<2 UJ --<2 <9.2 <2 <9.2
<2 UJ --<2 <12 <2 <12
<2 UJ-- <2<8.2<2<8.2
1,600 -- 6,300 66,000 650 59,000
<2.0 -- <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20 -- <20 <20 <20 <20
<20 -- <20 <20 <20 <20
<60--<2<2<2<2
<110 -- <4 <4 <4 <4
<20 -- <20 <20 <20 <20
---- <2 2.1 <2 <2
<2.1 -- <2.1 <2.1 <2.1 <2.1
<2.1 -- <2.1 <2.1 <2.1 <2.1
<20 -- <20 <20 <20 <20
<37--<2<2<2<2
<35--<2<2<2<2
<20 -- <20 <20 <20 <20
2.1 --4.4 <2 3.1 <2
10 --23 170 5.4 56
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 14 <2 <2
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 2.4 <2 <2
<2.0 -- <2 <2 <2 <2
8.4 --23 33 8.8 17
<2.0 -- <2 <2 <2 <2
3.5 --6 <2 3.3 <2
9.3 --29 41 15 19
<2.0 -- <2 <2 <2 <2
<2.0 --2.5 22 <2 3.9
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 <2 <2 <2
17 --47 200 12 85
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 <2 <2 <2
<2.0 -- <2 14 <2 <2
10 --48 26 6.6 17
12 --15 9 8.3 3.9
10
TR0795 Page 9 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
-- -- STW-LOC12-082219 -- STW-LOC-12-122019 --
-- -- 8/22/2019 -- 12/20/2019 --
-- -- TestAmerica -- TestAmerica --
-- -- -- -- -- --
-- -- 17 -- 15 B --
-- --<5 -- 20 --
-- -- 14 -- 14 --
-- -- 2.6 -- 2.4 --
-- --<2 --<2 --
-- --<2 -- 3 --
-- -- 26 -- 50 B --
-- --<20 --<20 --
-- --<2 --<2 --
-- --<2 --<2 --
-- -- 9.2 J --<2 --
-- -- 3 J -- 15 J --
-- --<2 --<2 --
-- -- 4.9 -- 2.4 --
-- --<2 --<2 --
-- --<2 --<2 --
-- -- 3.5 J --<2 --
-- --<2 --<2 --
-- --<2 --<2 --
-- -- <2 -- <2 --
-- -- 80 -- 120 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- -- <20 -- <20 --
-- -- <20 -- <20 --
-- -- <2 -- <2 --
-- -- <4 -- <4 --
-- -- <20 -- <20 --
-- -- <2 -- <2 --
-- -- <2.1 -- <2.1 --
-- -- <2.1 -- <2.1 --
-- -- <20 -- <20 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- -- <20 -- <20 --
-- --6.5 --4.5 --
-- --15 --6.8 --
-- -- <2 -- <2 --
-- --2 -- <2 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- --33 --11 --
-- -- <2 -- <2 --
-- --8.5 --5.5 --
-- --37 --19 --
-- -- <2 -- <2 --
-- --2.9 -- <2 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- --37 --14 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- -- <2 -- <2 --
-- --16 --6.9 --
-- --22 --15 --
12
TR0795 Page 10 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC14-042419 STW-LOC14-062819 STW-LOC14-082219 STW-LOC14-101019 STW-LOC-14-122019 --
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019 --
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica --
-- -- -- -- -- --
12 22 14 15 21 B --
67 J <5 <5 <5 UJ 19 --
10 J 15 14 6.7 13 --
2.1 J 2.5 <2 <2 <2 --
<2 UJ<2<2<2<2 --
<2 UJ <2 <2 <2 UJ <2 --
15 J 22 33 23 68 --
<20 UJ <20 <20 <20 25 --
<2 UJ<2<2<2<2 --
<2 UJ<2<2<2<2 --
5.7 J <2 5 J 2.4 <2 --
2.3 J 2.1 J <2 <2 9.3 J --
<2 UJ<2<2<2<2 --
<2 UJ <2 3.8 6 <2 --
<2 UJ<2<2<2<2 --
<2 UJ<2<2<2<2 --
3.2 J <2 <2 <2 <2 --
<2 UJ<2<2<2<2 --
<2 UJ<2<2<2<2 --
<2 UJ<2<2<2<2 --
58 64 70 53 160 --
<2.0 <2 <2 <2 <2 --
-- -- <2 <2 <2 --
<20<20<20<20<20 --
<20<20<20<20<20 --
<60<2<2<2<2 --
<110 <2 <4 <4 <4 --
<20<20<20<2039 J --
-- -- <2 <2 <2 --
<2.1 <2.1 <2.1 <2.1 <2.1 --
<2.1 <2.1 <2.1 <2.1 <2.1 --
<20<20<20<20<20 --
<37<2<2<2<2 --
<35<2<2<2<2 --
<20<20<20<20<20 --
<2.0 5.7 4.2 9.6 4.5 --
4.71310276.8--
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
3.124215011--
<2.0 <2 <2 <2 <2 --
3 7.96.1135.1--
4.436277220--
<2.0 <2 <2 <2 <2 --
<2.0 2.3 <2 2.2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 2.1 <2 --
3.828276714--
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
<2.0 <2 <2 <2 <2 --
5.81410157.5--
11 22 15 20 11 --
14
TR0795 Page 11 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC15-
042419 STW-LOC15-062819 STW-LOC15-082219 STW-LOC15-101019 STW-LOC-15-122019 STW-LOC15-012920
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
34 45 43 140 35 85
8.4 J 12 12 <5 UJ 15 120
17 J 16 22 32 13 140
4 J 3.2 5.3 16 5 8.2
3.2 J <2 2.2 16 3.9 6.5
<2 UJ <2 <2 15 3.1 5.3
35 J 25 38 45 31 B 23
<20 UJ <20 <20 <20 <20 <20
22 J 880 92 150 24 100
4.3 J 41 8.2 28 2.2 8.5
42 J 80 J 63 J 250 J 11 J 120 J
71 J 250 J 140 J 1,700 58 J 360 J
<2 UJ <2 <2 3.6 <2 <2
3 J231235 25.4
9.5 J 22 22 62 4.3 7.9
<2 UJ 3.6 2.1 21 <2 2.7
10 J 33 J 15 J 71 J 4.7 J 22 J
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
260 1,400 480 2,600 210 1,000
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60<2<2<2<2<2
<110 <2 <4 <4 <4 <4
<20<20<20<20<20<20
-- -- <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37 3.1 <2 <2 <2 <2
<35<2<2<2<2<2
<20<20<20<20<20<20
2.3 3.7 4.1 6.5 3 2.2
6.5 9.4 9.2 22 <2 2.4
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
7.51420378.74.7
<2.0 <2 <2 <2 <2 <2
3.5 5.7 5.9 8.9 3.4 2.6
7.9222651145.5
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 2.4 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.21828681010
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
8.5 9.5 9.4 11 4.8 4
14 15 16 16 8.2 6.2
15
TR0795 Page 12 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019
-- STW-LOC-18-062719 STW-LOC18-082119-1 STW-LOC18-082119-2
-- 06/27/2019 8/21/2019 8/21/2019
-- TestAmerica TestAmerica TestAmerica
-- -- -- --
-- 4.1 7.1 11
--<5 UJ <5 <5
-- 2.4 J 2.2 4.4
--<2 UJ <2 <2
--<2 UJ <2 <2
--<2 UJ <2 <2
--<10 UJ <10 UJ 18
--<20 UJ <20 <20
--<2 UJ <2 2
--<2 UJ <2 <2
--<2 UJ 3.5 J 4.1 J
--<2 UJ <2 <2
--<2 UJ <2 <2
--<2 UJ <2 UJ <2
--<2 UJ <2 <2
--<2 UJ <2 <2
--<2 UJ <2 2.1 J
--<2 UJ <2 <2
--<2 UJ <2 <2
--<2 UJ <2 <2
-- 6.5 13 42
-- <2 <2 <2
-- -- <2 <2
-- <20 <20 <20
-- <20 <20 <20
-- <60 <2 <2
-- <110 <4 UJ <4
-- <20 <20 <20
-- -- <2 <2
-- <2.1 <2.1 <2.1
-- <2.1 <2.1 <2.1
-- <20 <20 <20
-- <37 <2 <2
-- <35 <2 <2
-- <20 <20 <20
-- <2 <2 <2
-- <3.3 14 J 7.1 J
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
--2.4 5.1 9.2
-- <2 UJ <2 UJ <2 UJ
-- <2 <2 2.6
--3.5 5.2 11
-- <2 <2 <2
-- <2 <2 <2
-- <2 UJ <2 UJ <2 UJ
-- <2 <2 <2
-- <2 <2 <2
--3.6 3.7 J 11
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 2.8 5.4
-- <2 <2 6.4
18
August 2019
TR0795 Page 13 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
October 2019 December 2019 January 2020
STW-LOC18-082119-3 STW-LOC18-082119-4 STW-LOC18-100919 STW-LOC-18-122019 STW-LOC18-012920
8/21/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
7.6 120 16 12 B 6 J
<5 <5 <5 UJ <5 <5
3.8 20 5.5 J 3.9 J 3.7 J
<2 5.1 <2 <2 <2
<2 3.2 <2 <2 <2
<2 <2 <2 UJ <2 <2 UJ
21 64 J <10 UJ 19 B <10 UJ
<20 26 <20 <20 <20 UJ
<2 5 <2 <2 <2
<2 6.4 <2 <2 <2
2.3 J 53 J 13 J 7.7 J <2
<2 22 J <2 6.2 J <2
<2 <2 <2 <2 <2
4.4 6.4 <2 UJ <2 UJ <2 UJ
<2 <2 <2 <2 <2
<2 2.3 <2 <2 <2
3.2 J 26 J 2.4 J 5.2 J <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
42 360 37 54 9.7
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <49 <20
<2 <2 <2 <2 <2
<4 <4 UJ <4 <4 <4
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 UJ
<2.1 <2.1 <2.1 <2.1 <2.1 UJ
<20 <20 <20 <20 <20
<2 <2 <2 UJ <2 <2
<2 <2 <2 <2 <2
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
7.9 12 J 17 J <3.3 110 J
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
2 <2 <2 <2 <2
<2 <2 <2 <2 <2
8.9 6.3 22 2.8 <2
<2 UJ <2 <2 UJ <8.3 <89 UJ
2.5 <2 5.4 <2 <2
12 7.6 29 3.2 <2 UJ
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 UJ <2 <2 UJ <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
11 7.3 27 J 3.4 <49 UJ
<2 <2 <2 UJ <2 <2 UJ
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
5.14.26.73.3<2
7.6 4.1 10 2.8 <2
18
August 2019
TR0795 Page 14 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC19A-
042419
STW-LOC-19A-
062719
STW-LOC19A-
082119
STW-LOC19A-
100919
STW-LOC-19A-
122019
STW-LOC19A-
012920
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
30 J 4.5 J 18 7.3 380 19 J
< 5 UJ <5 UJ <5 <5 16 8.7 J
4.8 J 2.6 J 5.1 7.1 35 9.3
<2 UJ <2 UJ <2 <2 UJ 9.7 2.9
<2 UJ <2 UJ <2 <2 UJ 4 J <2
<2 UJ <2 UJ <2 <2 UJ <2 <2
27 J <10 UJ 21 19 340 27
<20 UJ <20 UJ <20 <20 180 <20
<2 UJ <2 UJ 4.5 <2 <2 2.3
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 <2 UJ 11 J 4.8 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 2.1 2.2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 2.4 <2
<2 UJ <2 UJ <2 <2 UJ 4.1 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2
62 7.1 49 36 980 74
<2.0 <2 <2 <2 <2 <2 UJ
-- -- <2 <2 <2 <2 UJ
<20 <20 <20 <20 <20 <20 UJ
<20 <20 <20 <20 <20 <20 UJ
<60 <60 <2 <2 <2 <2 UJ
<110 <110 <4 <4 <4 <4 UJ
<20 UJ <20 UJ <20 <20 <20 <20 UJ
-- -- <2 <2 <2 <2 UJ
<2.1 UJ <2.1 UJ <2.1 <2.1 <2.1 <2.1 UJ
<2.1 UJ <2.1 UJ <2.1 <2.1 <2.1 <2.1 UJ
<20 <20 <20 <20 <20 <20 UJ
<37 UJ<37<2<2<2<2 UJ
<35 UJ<35<2<2<2<2 UJ
<20 <20 <20 <20 <20 <20 UJ
<2.0 UJ<2<2<2<2<2 UJ
4.3 J 2.4 J 2.9 6 3.2 8.6 J
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ 3.3 J 5.1 9.5 3.5 2.9 J
<2.0 UJ <2 UJ <2 UJ <2 UJ <2 <2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ 6.1 J 6.8 15 7.8 4.3 J
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ <2 <2 <2 3.1 B <2 UJ
<2.0 UJ <2 UJ <2 UJ <2 UJ <2 <2 UJ
<2.0 UJ<2<2<2<2<2 UJ
<2.0 UJ<2<2<2<2<2 UJ
2.6 J 5.3 7.1 15 6.3 3.2 J
<2.0 UJ <2 UJ <2 <2 UJ <2 <2 UJ
<2.0 UJ <2 <2 <2 46 B <2 UJ
<2.0 UJ <2 <2 <2 15 B <2 UJ
2.6 J 3.1 J 3.7 3.3 14 4.4 J
<2.0 UJ <2 2.4 2.5 <2 7 J
19A
TR0795 Page 15 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC19B-
042419
STW-LOC-19B-
062719
STW-LOC19B-
082119
STW-LOC19B-
100919
STW-LOC-19B-
122019
STW-LOC19B-
012920
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
22 9.6 26 5.9 22 B 75
<5 UJ <5 UJ <5 <5 5.6 14 J
9.8 J 3.1 J 5.3 3.9 4.3 230
<2 UJ <2 UJ <2 <2 <2 19
<2 UJ <2 UJ <2 <2 UJ <2 <2
<2 UJ <2 UJ <2 <2 UJ <2 <2
39 J <10 UJ 26 12 35 B 120
<20 UJ <20 UJ <20 <20 <20 46
<2 UJ <2 UJ 5 <2 <2 2.9
<2 UJ 21 J 2.6 2.2 <2 <2
6.5 J <2 UJ <2 <2 UJ <2 <2
3.5 J <2 UJ <2 <2 2.2 5.3 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ 33.2<2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
5.3 J <2 UJ<2<2<2<2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2
86 34 68 27 69 510
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60 <60 <2 <2 <2 <2
<110 <110 <4 <4 <4 <4
<20<20<20<20<20<20
-- -- <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37 UJ<37<2<2<2<2
<35 UJ<35<2<2<2<2
<20<20<20<20<20<20
<2 <2 <2 2.3 <2 <2
4.4 3 4.6 7.2 2.2 5.9
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
2.2 4 7.9 12 2.7 3.5
<2 <2 UJ <2 UJ 6.2 J <2 UJ <2
<2 <2 <2 2.3 <2 <2
3.4 6.8 11 18 5.2 5.8
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 UJ <2 UJ <2 UJ <2 UJ <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
3.6 6 11 18 3.9 7.9
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
4.9 3.1 30 4.4 <2 3.2
3.2 2.2 2.1 3.4 2.4 <2
19B
TR0795 Page 16 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
June 2019
DSTW-LOC20-042419 DSTW-LOC20-042419-D STW-LOC20-062819
04/24/2019 04/24/2019 06/28/2019
TestAmerica TestAmerica TestAmerica
-- Field Duplicate --
61 63 50
53 J 56 J 48
30 J 31 J 28
6.9 J 6.7 J 9.3
3.7 J 3.5 J 8.7
<2 UJ <2 UJ 20
37 J 35 J 30
<20 UJ <20 UJ <20
5.3 J 5.5 J 260
7.8 J 7.9 J 110
28 J 27 J 69 J
68 J 68 J 390 J
<2 UJ <2 UJ 2
2.9 J 2.4 J 14
2 J <2 UJ 7.3
<2 UJ <2 UJ <2
6.6 J 7.8 J 12 J
<2 UJ <2 UJ <2
<2 UJ <2 UJ <2
<2 UJ <2 UJ <2
310 310 1,100
<2.0 <2.0 <2
-- -- --
<20 <20 <20
<20 <20 <20
<60 <60 <2
<110 <110 <2
<20 <20 <20
-- -- --
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<37 <37 <2
<35 <35 <2
<20 <20 <20
2.2 2.2 3.8
6.5 5.9 8.8
<2.0 <2.0 <2
<2.0 <2.0 <2
<2.0 <2.0 <2
<2.0 <2.0 <2
<2.0 <2.0 <2
7.1 7 15
<2.0 <2.0 <2
3.5 3.5 5.8
7.8 7.7 23
<2.0 <2.0 <2
<2.0 <2.0 <2
<2.0 UJ <2.0 <2
<2.0 <2.0 <2
<2.0 <2.0 <2
6.7 7.6 17
<2.0 <2.0 <2
<2.0 <2.0 <2
<2.0 <2.0 <2
8.7 8.5 9.3
13 13 15
April 2019
20
TR0795 Page 17 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
STW-LOC20-082219 STW-LOC20-082219-D STW-LOC20-101019 STW-LOC20-100919-D
8/22/2019 8/22/2019 10/10/2019 10/10/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- Field Duplicate
49 J 71 J 30 J 34
650 J 630 24 J 21 J
210 J 210 18 19
71 71 5.7 5.7
44 46 4.3 4.6
19 22 7.6 J 7.3 J
39 46 34 27
<20<20<20<20
39 40 17 16
70 67 46 41
63 J 74 J 31 J 18 J
540 J 640 J 190 J 160 J
<2 <2 <2 <2
28 28 13 J 8.7 J
8.68.33.83.3
6.4 6.3 <2 <2
11 J 12 J 6.9 J 5.4 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
1,800 2,000 430 370
<2 <2 <2 <2
<2 <2 <2 <2
<20<20<20<20
<20<20<20<20
<2 <2 <2 <2
<4 <4 <4 <4
<20<20<20<20
<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20<20<20<20
<2 <2 <2 <2
<2 <2 <2 <2
<20<20<20<20
4.24.26.36.2
10 10 19 24
<2 <2 <2 <2
<2 <2 <2 UJ 19 J
<2 <2 <2 <2
<2 <2 <2 3
<2 <2 <2 <2
20 20 34 J 100 J
<2 <2 <2 <2
5.96.38.68.7
26 27 48 J 92 J
<2 <2 <2 <2
<2 <2 <2 UJ 40 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
27 26 47 65
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 8.3
10 9.5 11 J 50 J
14 14 15 14
20
October 2019August 2019
TR0795 Page 18 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
STW-LOC-20-122019 STW-LOC-20-122019-D STW-LOC20-012920 STW-LOC20-012920-D
12/20/2019 12/20/2019 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- Field Duplicate
42 47 89 J 66 J
22 20 35 J 31
11 11 37 36
2.7 2.8 3.1 3
<2 <2 2.1 2.1
2.2 <2 <2 <2
33 B 32 B 27 31
<20 <20 <20 <20
5.3 5.5 18 18
2.2 2.1 2.9 2.8
7.7 J 6.3 J 21 J 22 J
49 J 44 J 85 J 82 J
<2 <2 <2 <2
2.4 2.2 2.6 2.3
<2 <2 <2 <2
<2 <2 <2 <2
4 J 3.3 J <2 7.5 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
180 180 320 300
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<2 <2 <2 <2
<2 <2 <2 <2
<20 <20 <20 <20
332.22.2
5.4 4.5 3.8 3.2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
8.8 8.8 4.1 4
<2 <2 <2 <2
3.2 3.4 2.5 2.5
15 15 5.5 5.6
<2 <2 <2 <2
<2 <2 <2 <2
<2 UJ<2<2<2
<2 <2 <2 <2
<2 <2 <2 <2
11 11 5.9 5.7
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
5.7 5.9 4.3 4.2
7.9 8 6.6 6.5
January 2020
20
December 2019
TR0795 Page 19 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC21A-
042419
STW-LOC-21A-
062719
STW-LOC21A-
082119
STW-LOC21A-
100919
STW-LOC-21A-
122019
STW-LOC21A-
012920
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
33 40 57 97 43 31
11 J 12 J 9.5 J 11 J 21 15 J
16 J 15 J 13 28 16 15
2.9 J 2.9 J 2.4 12 2.6 2.1
2 J <2 UJ <2 9.6 <2 <2
<2 UJ <2 UJ 2.2 6.6 2.5 <2
43 J 33 J 53 71 54 B 34
<20 UJ <20 UJ <20 25 23 <20
2.1 J 9.7 J 12 7.7 2.7 <2
<2 UJ 2.2 J 4.9 4.3 <2 <2
4.2 J 19 J 31 J 32 J 7.3 J <2
4.1 J 11 J 25 J 17 J 12 J 8.7 J
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ 2.5 J 33 8.4 2.1 <2
<2 UJ <2 UJ <2 7.4 <2 <2
<2 UJ <2 UJ 3.8 3.9 <2 <2
3.4 J 4.1 J 34 J 19 J 5 J <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
<2 UJ <2 UJ <2 <2 <2 <2
120 150 280 360 190 110
<2.0 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60 <60 <2 <2 <2 <2
<110 <110 <4 <4 <4 <4
<20<20<20<20<20<20
-- -- <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37 UJ<37<2<2<2<2
<35 UJ<35<2<2<2<2
<20<20<20<20<20<20
2 4 4.5 6.8 2.4 2.6
59.8121755.2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
3 1423316.25.2
<2.0 <2 <2 <2 <2 <2
3 6.2 6 9.8 3.3 3.3
4.4232941108.2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
4.82130408.87.9
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 <2
5.6 9.8 10 12 4 4.7
9.11416239.46.9
21A
TR0795 Page 20 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019
DSTW-LOC22-042419 STW-LOC-22-062719 STW-LOC22-082119
04/24/2019 06/27/2019 8/21/2019
TestAmerica TestAmerica TestAmerica
-- -- --
170 130 J 140
<5 UJ 220 J 36 J
<2 UJ 540 J 45 J
3 J 27 J 5.5
5.3 J 32 J 6.5
<2 UJ <6.7 UJ 3.8 J
67 J 1,500 J 20 J
<20 UJ 210 J <20
2 J 180 J 47
18 J 150 J 54
160 J 500 J 59 J
170 J 13,000 J 770 J
<2 UJ 23 J <2
11 J 65 J 13 J
<2 UJ <4.9 UJ <2
2.1 J <5.6 UJ 3.9
5.2 J 54 J 7.5 J
<2 UJ <9.2 UJ <2
<2 UJ <12 UJ <2
<2 UJ <8.2 UJ <2 UJ
610 17,000 1,200
<2.0 <2 <2
-- -- <2
<52 <20 <20
<20 <20 <20
<60 <60 <2
<110 <110 <4
<20 <20 <20
-- -- <2
<2.1 <2.1 UJ <2.1
<2.1 <2.1 UJ <2.1
<20 <20 <20
<37 UJ <37 <2
<35 UJ <35 <2
<31 <20 <20
<2.0 3.4 <2
<3.5 UJ 37 J 5.4 J
<3.2 <2 <2
<3.1 2.4 <2
<4.5 <2 <2
<5.5 <2 <2
<2.0 <2 <2
7.1126.7
<8.9 <2 <2
4.5 5.6 <2
<5.8 21 J 6.9
<2.0 <2 <2
<2.7 2.3 <2
<4.6 <2 <2
<3.5 <2 <2
<3.0 <2 <2
20 22 J 8
2.9 <2 <2
<13 <2 <2
<11 <2 <2
<8.5 9.8 7.5
<5.4 18 3.6
22
TR0795 Page 21 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
December 2019 January 2020
STW-LOC22-100919 STW-LOC22-100919-D STW-LOC-22-122019 STW-LOC22-012920
10/9/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- --
27 27 <14 <150
37 J 56 J 25 J <5 UJ
21 23 12 J 10 J
7.2 8.1 5 3.5
6.7 8.5 4.1 J 3
7.1 J 14 J 2.3 J <2 UJ
40 37 <10 UJ <10 UJ
<20 <20 <20 UJ <20
70 73 25 J 58
63 J 130 J 25 J 18
18 J 26 J 28 J 40 J
210 J 300 J 490 J 260 J
<2 2.3 <2 <2
12 15 2.3 J <2 UJ
2.1 2.6 <2 <2
2.5 2.8 <2 <2
5 J 4.5 J 3 J <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 UJ <2
530 730 620 390
<2 <2 <2 <19
<2 <2 <2 <32
<20 <20 <20 <200
<20 <20 <20 <520
<2 <2 <2 <85
<4 <4 <4 <140
<20 <20 <20 <200
<2 <2 <2 <24
<2.1 <2.1 <2.1 <19
<2.1 <2.1 <2.1 <19
<20 <20 <20 <190
<2 <2 <2 <87
<2 <2 <2 <43
<20 <20 <20 <310
3.7 3.6 <2 <20
16 J 18 J 130 J 79
<2 <2 <2 <32
<2 <2 <2 <31
<2 <2 <2 <45
<2 <2 <2 <55
<2 <2 <2 <19
24 24 4.1 J <25
<2 <2 <2 UJ <89
6.1 6.2 <2 28
34 33 <2 UJ <58
<2 <2 <2 <16
<2 2 <2 <27
<2 <2 <2 UJ <46
<2 <2 <2 <35
<2 <2 <2 <30
32 32 <2 UJ <49
<2 <2 <2 <29
<2 <2 <2 <130
<2 <2 <2 <110
8.4 8.4 4.5 <85
12 11 3.4 J <54
22
October 2019
TR0795 Page 22 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019
DSTW-LOC23A-042419 STW-LOC-23A-062719 STW-LOC23A-082119-1 STW-LOC23A-082119-2
04/24/2019 06/27/2019 8/21/2019 8/21/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- --
270 170 11,000 25,000
1,300 320 1,200 1,300
480 240 280 350
140 87 73 110
<79 <79 26 48
<34 <34 UJ 11 22
700 1,300 82 120
<47 560 33 54
2,700 17,000 4,500 12,000
140 740 210 570
180 220 190 400
2,200 2,900 3,800 7,400
<15 19 2 3.3
<54 <54 49 100
65 110 52 150
32 28 23 61
<70 <70 16 25
<46 <46 <2.3 <9.2
<60 <60 <3 <12
<41 <41 <2 <8.2
8,200 24,000 22,000 48,000
<2.0 <2 <2 <2
-- -- <3.1 <3.1
<20 <20 <20 <20
<20 <20 <51 <50
<60 <60 <3 <12
<110 <110 <14 <13
<20 <20 <20 <20
-- -- <2.4 <2.3
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<37 <37 <2 <7.5
<35 <35 <2 <6.9
<20 <20 <30 <30
<2.0 3.8 3.5 3.7
160705554
<2.0 <2 <3.1 <3.1
<2.0 2.8 <3 <3
<2.0 <2 <4.4 <4.3
<2.0 6.9 <5.4 <5.3
<2.0 <2 <2 <2
3.6142425
<2.0 42 <8.7 <8.6
25.86.26
6.6242626
<2.0 <2 <2 <2
<2.0 2.9 3.5 5.2
<2.0 21 <4.5 <4.4
<2.0 <2 <3.4 <3.4
<2.0 <2 <2.9 <2.9
13 29 31 34
<2.0 30 <2.8 <2.8
<2.0 16 <13 <13
<2.0 4.3 <11 <11
20 30 290 460
2.9192333
23A
August 2019
TR0795 Page 23 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
October 2019 December 2019 January 2020
STW-LOC23A-082119-3 STW-LOC23A-082119-4 STW-LOC23A-100919 STW-LOC-23A-122019 STW-LOC23A-012920
8/21/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
15,000 12,000 110 2,200 190
1,600 1,200 890 1,100 500 J
390 310 200 240 130
11092708046
46 42 44 37 29
19 21 J 31 20 13
<110 <110 <57 <57 33
45 42 20 33 <20
12,000 12,000 11,000 6,900 4,400
520 530 570 330 200
350 350 340 260 140
7,000 7,000 5,900 J 3,500 2,000 J
3.5 3.1 2.9 <2 <2
94 89 61 39 19
130 130 88 83 52
52 52 71 63 25
27 23 34 26 J 20
<9.2 <9.2 <4.6 <4.6 <2.3
<12 <12 <6 <6 <3
<8.2 <8.2 <4.1 <4.1 <2
37,000 34,000 19,000 15,000 7,800
<2 <2 <2 <2 <2
<3.2 <3.1 <2 <2 <2
<20 <20 <20 <20 <20
<52 <50 <20 <20 <20
<12 <12 3.3 2.8 <2
<14 <13 <4 <4 <4
<20 <20 <20 <20 <20
<2.4 <2.3 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20
<7.5 <7.5 <2 <2 <2
<6.9 <6.9 <2 <2 <2
<31 <30 <20 <20 <20
3.53.96.72.3 3
51 49 18 180 45
<3.2 <3.1 <2 <2 <2
<3.1 5.1 4 2.4 <2
<4.5 <4.3 <2 <2 <2
<5.5 <5.3 4 <2 <2
<2 <2 <2 <2 <2
26 23 31 15 9.1
<8.8 <8.5 10 8.1 3.3
6.1 6.5 12 3.8 4
24 27 37 17 12
<2 <2 <2 <2 <2
5 4.8 3.4 2.1 B <2
<4.6 <4.4 6.8 4.9 <2
<3.5 <3.3 2.1 <2 <2
<3 <2.9 <2 <2 <2
34 32 43 18 13
<2.9 <2.8 86.43.6
<13 <12 6.9 5.2 B 2.4
<11 <11 3.2 <2 <2
380 310 52 680 43
33 32 27 11 9.7
23A
August 2019
TR0795 Page 24 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
--STW-LOC-23B-
062719 --STW-LOC23B-
100919
STW-LOC-23B-
122019
STW-LOC23B-
012920
-- 06/27/2019 -- 10/9/2019 12/20/2019 1/29/2020
-- TestAmerica -- TestAmerica TestAmerica TestAmerica
-- -- -- -- -- --
-- 3,200 -- 17 240 31
-- 160 J -- 200 13 11 J
-- 150 J --56 7.3 7
-- 67 J -- 19 <2 <2
-- 61 J -- 10 <2 <2
-- 77 J -- 8.5 J <2 <2
-- 19,000 J --<28 24 B 26
-- 8,500 J --<20 <20 <20
-- 49 J -- 2,700 25 37
-- 110 J -- 120 <2 <2
-- 580 J -- 100 J <2 <2
-- 450 J -- 1,700 J 26 J 34 J
-- 4.5 J --<2 <2 <2
-- 33 J -- 20 <2 <2
-- 5.1 J -- 20 <2 <2
-- 21 J -- 14 <2 <2
-- 210 J -- 10 J <2 <2
--<9.2 UJ --<2.3 <2 <2
--<12 UJ --<3 <2 <2
-- <8.2 UJ -- <2 <2 <2
-- 33,000 -- 5,000 340 150
-- <3.5 -- <2 <2 <2
-- -- -- <2 <2 <2
-- <37 -- <20 <20 <20
-- <20 -- <20 <20 <20
--<60--<2<2<2
-- <110 -- <4 <4 <4
--20 J -- <20 <20 <20
-- -- -- <2 <2 <2
-- <2.1 -- <2.1 <2.1 <2.1
-- <2.1 -- <2.1 <2.1 <2.1
-- <20 -- <20 <20 <20
--<37--<2<2<2
--<35--<2<2<2
-- <20 -- <20 <20 <20
--2.5 --5.4 2.7 2
--580 --18 4 3.3
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
--10 --30 6.6 2.9
--<2 UJ--<2<2<2
-- <2 --6.8 3.2 <2
--12 --43 12 3.8
-- <2 -- <2 <2 <2
--2.5 -- <2 <2 <2
--<2 UJ--<2<2<2
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
--68 --40 8.2 4
--<2 UJ--<2<2<2
-- <2 -- <2 <2 <2
-- <2 -- <2 <2 <2
--29 --13 26 12
--5 --14 7.9 5.3
23B
TR0795 Page 25 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
DSTW-LOC24A-042419 DSTW-LOC24A-042419-D STW-LOC-24A-062719 STW-LOC-24A-062719-D
4/24/2019 4/24/2019 06/27/2019 06/27/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- Field Duplicate
16 J 14 26 26
7.5 J <5 UJ <5 UJ <5 UJ
9.9 J 12 J 14 J 14 J
<2 UJ <2 UJ 2.3 J 2.3 J
<2 UJ <2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ <2 UJ
25 J 26 J 30 J 30 J
<20 UJ <20 UJ <20 UJ <20 UJ
<2 UJ <2 UJ 2.2 J 2.2 J
<2 UJ <2 UJ <2.2 J <2.2 J
3.6 J 5.4 J 4.4 J 4.4 J
2.7 J 3.1 J <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ 2 J 2 J
<2 UJ <2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ 4.4 J 4.4 J
4 J 4.2 J 2.3 J 2.3 J
<2 UJ <2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ <2 UJ
< UJ <2 UJ <2 UJ <2 UJ
69 65 88 88
<2.0 <2.0 <2 <2
-- -- -- --
<20<20<20<20
<20<20<20<20
<60<60<60<60
<110 <110 <110 <110
<20<20<20<20
-- -- -- --
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20<20<20<20
<37 UJ <37 UJ <37 <37
<35 UJ <35 UJ <35 <35
<20<20<20<20
2.32.33.43.4
6.35.89.49.4
<2.0 <2.0 <2 <2
<2.0 <2.0 2.2 2.2
<2.0 <2.0 <2 <2
<16 <2.0 <2 <2
<2.0 <2.0 <2 <2
7 7.3 13 13
<2.0 <2.0 <2 <2
3.9 3.8 6 6
8.5 8.8 21 21
<2.0 <2.0 <2 <2
2 <2.0 2.7 2.7
<2.0 <2.0 <2 <2
<2.0 <2.0 <2 <2
<2.0 <2.0 <2 <2
7 6.7 17 17
<5.9 <2.0 <2 <2
<14 <2.0 <2 <2
<2 <2.0 <2 <2
9.5 9.7 11 J 11 J
25 21 30 J 30 J
24A
June 2019April 2019
TR0795 Page 26 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
October 2019 December 2019
STW-LOC24A-
082119
STW-LOC24A-
082119-D --STW-LOC-24A-
122019
STW-LOC24A-
012920
STW-LOC24A-
012920-D
8/21/2019 8/21/2019 -- 12/20/2019 1/29/2020 1/29/2020
TestAmerica TestAmerica -- TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- -- -- Field Duplicate
16 17 -- 18 B 11 8.7
11 12 -- 12 9.9 J 9.3
12 13 -- 6.1 6.5 6.2
<2 2.1 --<2 <2 <2
<2 <2 --<2 <2 <2
<2 <2 --<2 <2 <2
26 28 -- 41 B 46 47
<20 <20 -- 22 23 25
<2 <2 --<2 <2 <2
<2 <2 --<2 <2 <2
9.7 J 11 J --<2 <2 <2
4 J 4.2 J -- 12 J 5.4 J 5.2 J
<2 <2 --<2 <2 <2
4.7 5.3 --<2 <2 <2
<2 <2 --<2 <2 <2
<2 <2 --<2 <2 <2
4.5 J 3.9 J --<2 <2 <2
<2 <2 --<2 <2 <2
<2 <2 --<2 <2 <2
<2 <2 -- <2 <2 <2
88 97 -- 110 100 100
<2 <2 -- <2 <2 <2
<2 <2 -- <2 <2 <2
<20<20 -- <20<20<20
<20<20 -- <20<20<20
<2 <2 -- <2 <2 <2
<4 <4 -- <4 <4 <4
<20<20 -- <20<20<20
<2 <2 -- <2 <2 <2
<2.1 <2.1 -- <2.1 <2.1 <2.1
<2.1 <2.1 -- <2.1 <2.1 <2.1
<20<20 -- <20<20<20
<2 <2 -- <2 <2 <2
<2 <2 -- <2 <2 <2
<20<20 -- <20<20<20
4.1 3.7 --3.1 2.1 2
9.3 9 -- <2 4.5 4.2
<2 <2 -- <2 <2 <2
2.5 2 -- <2 <2 <2
<2 <2 -- <2 <2 UJ <2
<2 <2 -- <2 <2 <2
<2 <2 -- <2 <2 <2
19 18 --8.6 3.8 3.5
<2 <2 -- <2 <2 <2
65.8--4.4 2.5 2.4
26 26 --15 5.4 5.1
<2 <2 -- <2 <2 <2
2.7 2.1 --2.8 B <2 <2
<2 <2 -- <2 <2 <2
<2 <2 -- <2 <2 <2
<2 <2 -- <2 <2 UJ <2
25 27 --10 4.8 4.5
<2 <2 -- <2 <2 <2
<2 <2 --16 B <2 <2
<2 <2 --3.1 B <2 <2
11 10 --7.6 3.9 3.5
27 J 22 J --17 6.3 6.2
24A
August 2019 January 2020
TR0795 Page 27 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019
DSTW-LOC24B-042419 STW-LOC24B-062719 STW-LOC24B-082119 STW-LOC24B-100919
04/24/2019 06/27/2019 8/21/2019 10/9/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- --
14 10 8.9 8.5
11 J <5 <5 <5 UJ
11 J 8.1 6.7 7.1
<2 UJ <2 <2 2
<2 UJ<2<2<2
<2 UJ<2<2<2
19 J 17 16 18
<20 UJ <20 <20 <20
<2 UJ 77 <2 <2
<2 UJ 3.3 <2 <2
5.1 J <2 5.3 J 6.9 J
4.3 J 11 J 2.4 J 4.4 J
<2 UJ<2<2<2
<2 UJ <2 4.3 7
<2 UJ <2 <2 9.6
<2 UJ<2<2<2
3.8 J <2 2.2 J <2
<2 UJ<2<2<2
<2 UJ<2<2<2
<2 UJ<2<2<2
68 130 46 64
<2.0 <2 <2 <2
-- -- <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<60<2<2<2
<110 <2 <4 <4
<20 <20 <20 <20
-- -- <2 <2
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<37 2.9 <2 <2
<35<2<2<2
<20 <20 <20 <20
2.2 3.5 4.3 6.2
5.5 9.6 9.5 18
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
6 132134
<2.0 <2 <2 <2
3.3 5 5.8 8.5
8 192549
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
6.2172546
<2.0 <2 <2 <2
<2.0 <2 <2 <2
<2.0 <2 <2 <2
7.7 8.3 9.5 11
12 14 16 15
24B
TR0795 Page 28 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
January 2020
STW-LOC-24B-122019 STW-LOC-24B-122019-D STW-LOC24B-012920
12/20/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica
-- Field Duplicate --
11 B 8.7 B 12
12 13 8.2 J
6.5 5.1 6.2
<2 <2 <2
<2 <2 <2
<2 <2 <2
27 B 29 B 24
<20 <20 <20
<2 <2 <2
<2 <2 <2
<2 3.7 J <2
5.2 J 6.2 J 3.7 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 2.6 J <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
62 68 54
<2 <2 <2
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2 <2 <2
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
2.8 2.7 <2
3.9 J 3.9 3.9
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
6.8 J 6.8 2.8
<2 <2 <2
3.1 3.2 2.1
13 J 12 4.1
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
8.3 J 9.9 4.3
<2 <2 <2
<2 <2 <2
<2 <2 <2
4.6 J 4.6 3
7.5 7.9 5.3
24B
December 2019
TR0795 Page 29 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-LOC24C-
042419
STW-LOC24C-
062719
STW-LOC24C-
082119 --STW-LOC-24C-
122019
STW-LOC24C-
012920
04/24/2019 06/27/2019 8/21/2019 -- 12/20/2019 1/29/2020
-- TestAmerica TestAmerica -- TestAmerica TestAmerica
-- -- -- -- -- --
19 16 13 -- 270 11
11 J <5 <5 --<21 10 J
12 J 8.6 7.6 -- 46 7.2
<2 UJ <2 <2 -- 20 <2
<2 UJ <2 <2 -- 13 <2
<2 UJ <2 <2 -- 12 <2
28 J 14 23 -- 61 B 26
<20 UJ <20 <20 -- 31 <20
14 J 3.5 21 -- 490 4.4
2.1 J <2 3.3 -- 130 <2
39 J 13 J 18 J -- 470 8 J
51 J 5.3 J 53 J -- 1,300 44 J
<2 UJ <2 <2 -- 11 <2
4 J 2 6.7 -- 260 4.7
6.8 J <2 2.1 -- 930 5.6
3.7 J <2 <2 -- 290 2.2
36 J 3.9 J 5.4 J -- 170 <2
<2 UJ <2 <2 --<4.6 <2
<2 UJ <2 <2 --<6 <2
<2 UJ <2 <2 -- <4.1 <2
230 66 150 -- 4,500 120
<2.0 <2 <2 -- <2 <2
-- -- <2 -- <2 <2
<20 <20 <20 -- <20 <20
<20 <20 <20 -- <20 <20
<60<2<2 --<2<2
<110 <2 <4 -- <4 <4
<20 <20 <20 -- <20 <20
-- -- <2 -- <2 <2
<2.1 <2.1 <2.1 -- <2.1 <2.1
<2.1 <2.1 <2.1 -- <2.1 <2.1
<20 <20 <20 -- <20 <20
<37 2.3 <2 -- <2 <2
<35<2<2 --<2<2
<20 <20 <20 -- <20 <20
23.84.5--2.9 <2
4.7 8 8.4 --5.3 3.3
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
5.9 13 22 --7.1 2.8
<2 <2 <2 -- <2 <2
3.4 5.1 6.1 --3.2 2
72127--13 3.9
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
<2 <2 <2 -- <2 <2
6.4 17 26 --11 4
<2.0 <2 <2 -- <2 <2
<2.0 <2 <2 -- <2 <2
<2.0 <2 <2 -- <2 <2
7.3 7.9 9.8 --5.3 2.8
15 15 13 --8.1 5.5
24C
TR0795 Page 30 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 January 2020
DSTW-TB-042519 STW-TBLK-1 STW-TBLK-082219 STW-TBLK-100919 STW-TB-122619 STW-LOCTB-
012920
04/25/2019 06/28/2019 8/22/2019 10/9/2019 12/26/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Trip Blank Trip Blank Trip Blank Trip Blank Trip Blank Trip Blank
<4.0 <4 <2 <4 6.7 <4
<5 UJ<5<5<5<5<5
<2 UJ <2 <2 <2 <2 <2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<10 UJ <10 <10 <10 11 <10
<20 UJ <20 <20 <20 <20 <20
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
ND ND ND ND 18 0
<2 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20 <20 <20 <20 <20 <20
<20 <20 <20 <20 <20 <20
<60<2<2<2<2<2
<110 <2 <4 <4 <4 <4
<20 <20 <20 <20 <20 <20
-- -- <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20 <20
<37<2<2<2<2<2
<35<2<2<2<2<2
<20 <20 <20 <20 <20 <20
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 2.9 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 27 <2
<2 <2 <2 <2 5 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
TBLK
TR0795 Page 31 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
DSTW-EB-01-042419 DSTW-EB-02-042419 DSTW-EB-03-042419 STW-EQBLK-1 STW-EQBLK-2
04/24/2019 04/24/2019 04/24/2019 06/28/2019 06/27/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<4.0 <4.0 <4.0 <4 <4
<5 UJ <5 UJ <5 UJ <5 <5
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<10 UJ <10 UJ <10 UJ <10 <10
<20 UJ <20 UJ <20 UJ <20 <20
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
<2 UJ <2 UJ <2 UJ <2 <2
ND ND ND ND ND
<2.0 <2.0 <2.0 <2 <2
-- -- -- -- --
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
820 J 850 J 780 J <2 <2
<110 <110 <110 <2 <2
<20 <20 <20 <20 <20
-- -- -- -- --
<2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20
<37 UJ <37 UJ <37 <2 <2
<35 <35 <35 <2 <2
<20 <20 <20 <20 <20
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
<2.0 <2.0 <2.0 <2 <2
April 2019 June 2019
EQBLK
TR0795 Page 32 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
STW-EB-01-082119 STW-EB-02-082119 STW-EB-03-082119 STW-EB-01-100919 STW-EB-02-100919
8/21/2019 8/21/2019 8/21/2019 10/9/2019 10/9/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<2 <2 <2 <4 <4
<5 <5 <5 <5 <5
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<10 <10 <10 <10 <10
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
ND ND ND ND ND
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<4 <4 <4 <4 <4
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
October 2019August 2019
EQBLK
TR0795 Page 33 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
October 2019
STW-EB-03-100919 STW-EQBLK-DR-
122019
STW-EQBLK-IO-
122019 STW-LOCEB1-012920 STW-LOCEB2-012920
10/9/2019 12/20/2019 12/20/2019 1/29/2020 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<4 <4 <4 <4 <4
<5 <5 <5 <5 UJ <5 UJ
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<10 10 10 <10 <10
<20<20<20<20<20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
ND 10 10 ND ND
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<20<20<20<20<20
<20<20<20<20<20
<2 <2 <2 <2 <2
<4 <4 <4 <4 <4
<20<20<20<20<20
<2 <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<20<20<20<20<20
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
January 2020December 2019
EQBLK
TR0795 Page 34 of 35 April 2020
TABLE 5
ANALYTICAL RESULTS - ALL SAMPLING EVENTS
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event
Field Sample ID
Date Sampled
Analytical Laboratory
QA/QC
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)
PFMOAA
PFO2HxA
PFO3OA
PFO4DA
PFO5DA
PMPA
PEPA
PFESA-BP1
PFESA-BP2
Byproduct 4
Byproduct 5
Byproduct 6
NVHOS
EVE Acid
Hydro-EVE Acid
R-EVE
PES
PFECA B
PFECA-G
Total Table 3+ Compounds*
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate
F-53B Minor (11Cl-PF3OUdS)
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol
6:2 Fluorotelomer sulfonate
F-53B Major (9Cl-PF3ONS)
ADONA
NaDONA
N-ethyl perfluorooctane sulfonamidoacetic acid
N-ethylperfluoro-1-octanesulfonamide
N-methyl perfluoro-1-octanesulfonamide
N-methyl perfluorooctane sulfonamidoacetic acid
Perfluorobutane Sulfonic Acid
Perfluorobutanoic Acid
Perfluorodecane Sulfonic Acid
Perfluorodecanoic Acid
Perfluorododecane sulfonic acid (PFDoS)
Perfluorododecanoic Acid
Perfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic Acid
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexane Sulfonic Acid
Perfluorohexanoic Acid
Perfluorononanesulfonic acid
Perfluorononanoic Acid
Perfluorooctadecanoic acid
Perfluorooctane Sulfonamide
Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic Acid
Perfluorotetradecanoic Acid
Perfluorotridecanoic Acid
Perfluoroundecanoic Acid
PFOA
PFOS
Notes:
* - Total Table 3+ was calculated including J qualified data but not non-
detect data. The total Table 3+ sum is rounded to two significant figures.
Bold - Analyte detected above associated reporting limit
EPA - Environmental Protection Agency
J - Analyte detected. Reported value may not be accurate or precise
ND - No Table 3+ compounds were detected above their associated
reporting limits.
ng/L - nanograms per liter
QA/QC - Quality assurance/ quality control
SOP - standard operating procedure
UJ – Analyte not detected. Reporting limit may not be accurate or precise.
-- - No data reported
< - Analyte not detected above associated reporting limit.
B - Not detected substantially above the level reported in the laboratory or
field blanks.
April 2019 June 2019 August 2019 October 2019 December 2019 Jannuary 2020
DSTW-TB-042519 STW-LOC-FBLK-1 STW-FB-082119 STW-FB-100919 STW-FBLK-122019 STW-LOCFB-
012920
04/25/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019 1/29/2020
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Field Blank Field Blank Field Blank Field Blank Field Blank Field Blank
<4.0 <4 <2 <4 <4 UJ <4
<5 UJ<5<5<5<5<5 UJ
<2 UJ <2 <2 <2 <2 <2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<10 UJ <10 <10 <10 10 <10
<20 UJ <20 <20 <20 <20 <20
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
<2 UJ<2<2<2<2<2
ND ND ND ND 10 ND
<2 <2 <2 <2 <2 <2
-- -- <2 <2 <2 <2
<20<20<20<20<20<20
<20<20<20<20<20<20
<60<2<2<2<2<2
<110 <2 <4 <4 <4 <4
<20<20<20<20<20<20
-- -- <2 <2 <2 <2
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1 <2.1
<20<20<20<20<20<20
<37<2<2<2<2<2
<35<2<2<2<2<2
<20<20<20<20<20<20
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 UJ <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 UJ <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 UJ <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 UJ <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 <2
<2 <2 <2 <2 <2 UJ <2
<2 <2 <2 <2 <2 <2
FBLK
TR0795 Page 35 of 35 April 2020
TABLE 6
TOTAL DAILY PRECIPITATION -
2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC, P.C.
Date Total Precipitation
(inches)
Measured Outfall Flow
(MGD)
1/1/2020 -- 21
1/2/2020 0.04 22
1/3/2020 0.70 24
1/4/2020 0.73 24
1/5/2020 -- 23
1/6/2020 -- 21
1/7/2020 -- 22
1/8/2020 -- 22
1/9/2020 -- 22
1/10/2020 -- 23
1/11/2020 0.08 23
1/12/2020 0.70 23
1/13/2020 0.60 24
1/14/2020 -- 23
1/15/2020 -- 23
1/16/2020 -- 23
1/17/2020 -- 24
1/18/2020 -- 24
1/19/2020 0.03 22
1/20/2020 -- 22
1/21/2020 -- 23
1/22/2020 -- 22
1/23/2020 -- 22
1/24/2020 0.03 23
1/25/2020 0.25 23
1/26/2020 -- 22
1/27/2020 0.09 23
1/28/2020 0.01 24
1/29/2020 -- 23
1/30/2020 -- 23
1/31/2020 0.86 25
2/1/2020 -- 22
2/2/2020 -- 23
2/3/2020 -- 24
2/4/2020 -- 22
2/5/2020 0.02 23
2/6/2020 2.63 32
2/7/2020 0.48 25
2/8/2020 -- 23
2/9/2020 -- 23
2/10/2020 -- 25
2/11/2020 -- 21
2/12/2020 -- 23
2/13/2020 0.15 23
2/14/2020 -- 23
2/15/2020 -- 23
2/16/2020 0.22 22
2/17/2020 0.04 24
2/18/2020 0.15 22
2/19/2020 0.11 22
2/20/2020 -- 25
2/21/2020 -- 23
TR0795 Page 1 of 2 April 2020
TABLE 6
TOTAL DAILY PRECIPITATION -
2020 QUARTER 1
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC, P.C.
Date Total Precipitation
(inches)
Measured Outfall Flow
(MGD)
2/22/2020 -- 23
2/23/2020 -- 22
2/24/2020 0.23 23
2/25/2020 0.05 22
2/26/2020 -- 22
2/27/2020 -- 22
2/28/2020 -- 23
2/29/2020 -- 22
3/1/2020 -- N/A
3/2/2020 -- N/A
3/3/2020 0.21 N/A
3/4/2020 0.01 N/A
3/5/2020 0.64 N/A
3/6/2020 0.02 N/A
3/7/2020 -- N/A
3/8/2020 -- N/A
3/9/2020 -- N/A
3/10/2020 -- N/A
3/11/2020 -- N/A
3/12/2020 -- N/A
3/13/2020 -- N/A
3/14/2020 -- N/A
3/15/2020 0.15 N/A
3/16/2020 -- N/A
3/17/2020 0.2 N/A
3/18/2020 -- N/A
3/19/2020 -- N/A
3/20/2020 -- N/A
3/21/2020 0.02 N/A
3/22/2020 0.06 N/A
3/23/2020 0.08 N/A
3/24/2020 0.13 N/A
3/25/2020 0.89 N/A
3/26/2020 -- N/A
3/27/2020 -- N/A
3/28/2020 -- N/A
3/29/2020 -- N/A
3/30/2020 -- N/A
3/31/2020 0.29 N/A
Notes:
N/A - Flow data at Outfall 002 not yet available
-- - below USGS measurement threshold
Location 8 (effluent to the wastewater treatment plant) sample collection date
Precipitation data obtained from USGS rain gauge at W.O. Huske Dam.
72 hour period prior to sample collection date
Sample collection date
USGS - United States Geological Survey
MGD - million gallons per day
TR0795 Page 2 of 2 April 2020
FIGURES
")
")
")
Willis Creek
Old Outfall 002Cape Fear RiverOutfall 002
W.O. Huske Dam
Site River Water Intake
NC Highway 87Seep A
Seep B
Seep C
Seep D
G BCTributary1GeorgiaBranchCreek
Site Location Map
Figure
1Raleigh
2,000 0 2,0001,000 Feet
³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Wastewater and Stormwater Quarterly Report\TR0795_SiteLocation.mxd; 01/14/2020April 2020
Legend
")Site Features
Site Boundary
Nearby Tributary
Observed Seep (Natural Drainage)
Site Conveyance Network
Notes:1. The outline of the Cape Fear River shown on this figure is approximate (River outline based on compilation of open data sources fromArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).2. Basemap sources: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community
Chemours Fayetteville Works, North Carolina
Areas at Site
Chemours Monomers IXM
Former DuPont PMDF Area
Wastewater Treatment Plant
Kuraray SentryGlas®
Leased Area
Kuraray Trosifol®Leased Area
DuPont Polyvinyl FluorideLeased Area
Chemours PolymerProcessing Aid Area Power - Filtered andDemineralized WaterProduction
Kuraray Laboratory
")")
")
")
")
")")
")@@@@Du Po nt A r e aWoodLinedTrench
Op en C ha nn el t o O utfal l 00 2
C oo l i n g Wat er C ha nn el Cape Fear
R
ive
r
21A
2219A
19B
23B
6A 6B
24B
24A24C
1
2 3
4
5
7A
8
9
10
11
12
13
14
15
18
20
23A
7B
Paragraph 11(b) Sample Locations
Chemours Fayetteville Works, North Carolina
Figure
2Raleigh
500 0 500250 Feet
³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Wastewater and Stormwater Quarterly Report\TR0795_Paragraph11b_Sample_Locations.mxd Last Revised: 1/14/2020 Author: jkasunicApril 2020
Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US
Note:
Prior to December 2019, Locations 18 and 23A were collectedas grab samples.
Legend
!(Temporal Composite Sample
")Grab Sample
Sample Location Category
Stormwater
Discharge Areas
Wood Lined Trench
Cooling Water Channel
Open Channel to Outfall 002
Non-process wastewater
DuPont Area
Process wastewater
Outfall 002
Wastewater Treatment Plant Discharge
Other Connections
Pipe Connection to Facility
Terracotta Pipe and Piping Connected to Terracotta Pipe
Grouted Pipe Section
Intake River Water at Facility
Wastewater Treatment Plant Discharge
""
"@@""
"
"
"@@"P:\PRJ\Projects\TR0795\Database and GIS\Illustrator\Wastewater and Stormwater Quarterly Report\TR0795_Paragraph11b_Sample_Locations.ai"
")")
")
")
")
")")
")@@@@Du Pon t A r eaWoodLinedTrench
Ope n Cha nn e l t o Ou tfal l 0 02
Co oli n g Wat er Ch a nn el
Wastewater
TreatmentPlant Discharge Cape Fea
r
R
iver
21A
22
23A
18
19A19B
23B
6A 6B
24B
24A
24C
1
7A
8
9
14
15
20
7B
12
10
HFPO-DA, PFMOAA, and PMPA Concentrations -Locations that Reach Outfall 002
Chemours Fayetteville Works, North Carolina
Figure
3ARaleigh
500 0 500250 Feet
³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Wastewater and Stormwater Quarterly Report\TR0795_Fig3A_Stormwater_PFAS.mxd Last Revised: 4/21/2020 Author: jkasunicApril 2020
Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US
Notes:
ng/L - nanograms per liteB - not detected substantially above the level reported in laboratory or field blanksJ - estimated value
UJ - estimated reporting limitDry - Insufficient water to collect sample
NS - not sampledHFPO-DA - Hexafluoropropylene oxide dimer acidPFMOAA - Perfluoro-2-methoxyacetic acidPMPA - Perfluoromethoxypropyl carboxylic acid1. See text for sample collection dates.2.All concentrations are in ng/L.3.Temporal composite samples collected over 4 hour interval.4. Locations 18 and 23A were collected as grab samples prior to December 2019.5. Locations 24A and 24C were not sampled in October 2019 because theselocations did not have flow due to Plant Turn Around.
Legend
!(Temporal Composite Sample
")Grab Sample
Sample Location Category
Stormwater
Ditch Types
Wood Lined Trench
Cooling Water Channel
Open Channel to Outfall 002
Process wastewater
Other Connections
Pipe Connection to Facility
Wastewater Treatment Plant Discharge
DuPont Area
Grouted Pipe Section
Outfall 002
Intake River Water at Facility
Non-process wastewater
Terracotta Pipe and Piping Connected to Terracotta Pipe
""
"@@""
"
"
"@@Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Wastewater and Stormwater Quarterly Report/Fig3AChemoursSampleLocations_WW_SW_databoxes.aiOctober 2019 December 2019
HFPO-DA 8.5 11 B
PFMOAA <5 UJ 12
PMPA 18 27 B
January 2020
12
8.2 J
24
October 2019 December 2019
HFPO-DA NS 18 B
PFMOAA NS 12
PMPA NS 41 B
January 2020
11
9.9 J
46
October 2019 December 2019
HFPO-DA 17 240
PFMOAA 200 13
PMPA <28 24 B
January 2020
31
11 J
26
October 2019 December 2019
HFPO-DA 110 2,200
PFMOAA 890 1,100
PMPA <57 <57
January 2020
190
500 J
33
October 2019 December 2019
HFPO-DA 27 <14
PFMOAA 37 J 25 J
PMPA 40 <10 UJ
January 2020
<150
<5 UJ
<10 UJ
October 2019 December 2019
HFPO-DA 97 43
PFMOAA 11 J 21
PMPA 71 54 B
January 2020
31
15 J
34
October 2019 December 2019
HFPO-DA 30 J 42
PFMOAA 24 J 22
PMPA 34 33 B
January 2020
89 J
35 J
27
October 2019 December 2019
HFPO-DA 7.3 380
PFMOAA <5 16
PMPA 19 340
January 2020
19 J
8.7 J
27
October 2019 December 2019
HFPO-DA 16 12 B
PFMOAA <5 UJ <5
PMPA <10 UJ 19 B
January 2020
6 J
<5
<10 UJ
October 2019 December 2019
HFPO-DA 15 21 B
PFMOAA <5 UJ 19
PMPA 23 68
January 2020
Dry
Dry
Dry
October 2019 December 2019
HFPO-DA 15,000 230
PFMOAA 1,700 34
PMPA 1,300 58
January 2020
8,300
22,000
810
October 2019 December 2019
HFPO-DA 12 9.8 B
PFMOAA <5 UJ 14
PMPA 27 23 B
January 2020
13
12
17
October 2019 December 2019
HFPO-DA 2,400 28 B
PFMOAA 38 J 14
PMPA 110 27 B
January 2020
59
14
18
October 2019 December 2019
HFPO-DA 120 500
PFMOAA 240 J 220
PMPA 38 130
January 2020
210
280
1,000
October 2019 December 2019
HFPO-DA 23 29 B
PFMOAA 24 J 25
PMPA 35 29 B
January 2020
19
17
24
October 2019 December 2019
HFPO-DA 17 9 B
PFMOAA <5 UJ 13
PMPA 30 19 B
January 2020
25
8.9 J
26
October 2019 December 2019
HFPO-DA 17 30 B
PFMOAA <5 UJ 13
PMPA 37 53 B
January 2020
36
13 J
62
October 2019 December 2019
HFPO-DA 16 9.3 B
PFMOAA <5 UJ 13
PMPA 28 21 B
January 2020
7.8
12
15
October 2019 December 2019
HFPO-DA NS 270
PFMOAA NS <21
PMPA NS 61 B
January 2020
11
10 J
26
October 2019 December 2019
HFPO-DA Dry 15 B
PFMOAA Dry 20
PMPA Dry 50 B
January 2020
Dry
Dry
Dry
October 2019 December 2019
HFPO-DA 140 35
PFMOAA <5 UJ 15
PMPA 45 31 B
January 2020
85
120
23
October 2019 December 2019
HFPO-DA 5.9 22 B
PFMOAA <5 5.6
PMPA 12 35 B
January 2020
75
14 J
120
")")
")
")
")
")")
")@@@@Du Po nt A r e aWoodLinedTrench
Op en C ha nn el t o O utfal l 00 2
C oo l i n g Wat er C ha nn el
Wastewater
TreatmentPlant Discharge Cape Fea
r
R
iver
21A
22
23A
18
19A19B
23B
6A 6B
24B
24A
24C
1
7A
8
9
14
15
20
7B
12
10
Total Table 3+ Concentrations -Locations that Reach Outfall 002
Chemours Fayetteville Works, North Carolina
Figure
3BRaleigh
500 0 500250 Feet
³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Wastewater and Stormwater Quarterly Report\TR0795_Fig3B_Stormwater_PFAS_TotalTable3.mxd Last Revised: 1/23/2020 Author: jkasunicApril 2020
Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US
Notes:
ng/L - nanograms per literDry - Insufficient water to collect sampleNS - not sampled
1. See text for sample collection dates.2. All concentrations are in ng/L.3. Temporal composite samples collected over 4 hour interval.4. Locations 18 and 23A were collected as grab samples prior to December 2019
.5. Locations 24A and 24C were not sampled in October 2019 because theselocations did not have flow due to Plant Turn Around.
Legend
!(Temporal Composite Sample
")Grab Sample
Sample Location Category
Stormwater
Ditch Types
Process wastewater
Other Connections
Pipe Connection to Facility
Wood Lined Trench
Wastewater Treatment Plant Discharge
Cooling Water Channel
Open Channel to Outfall 002
DuPont Area
Grouted Pipe Section
Outfall 002
Intake River Water at Facility
Non-process wastewater
Terra Cotta Pipe and Piping Connected to Terra Cotta Pipe
""
"@@""
"
"
"@@/Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Wastewater and Stormwater Quarterly Report/Fig3BChemoursSampleLocations_WW_SW_TotalTable3_databoxes.aiTotal Table 3+Month
January 2020
October 2019 5,600
December 2019 170
540
Total Table 3+Month
January 2020
October 2019 2,000
December 2019 1,800
2,200
Total Table 3+Month
January 2020
October 2019 370
December 2019 180
120
Total Table 3+Month
January 2020
October 2019 80
December 2019 58
52
Total Table 3+Month
January 2020
October 2019 85
December 2019 54
75
Total Table 3+Month
January 2020
October 2019 99
December 2019 140
190
Total Table 3+Month
January 2020
October 2019 NS
December 2019 4,500
120
Total Table 3+Month
January 2020
October 2019 64
December 2019 62
54
Total Table 3+Month
January 2020
October 2019 NS
December 2019 110
100
Total Table 3+Month
January 2020
October 2019 5,000
December 2019 340
150
Total Table 3+Month
January 2020
October 2019 19,000
December 2019 15,000
7,800
Total Table 3+Month
January 2020
October 2019 360
December 2019 190
110
Total Table 3+Month
January 2020
October 2019 530
December 2019 620
390
Total Table 3+Month
January 2020
October 2019 430
December 2019 180
320
Total Table 3+Month
January 2020
October 2019 27
December 2019 69
510
Total Table 3+Month
January 2020
October 2019 36
December 2019 980
74
Total Table 3+Month
January 2020
October 2019 37
December 2019 54
9.7
Total Table 3+Month
January 2020
October 2019 2,600
December 2019 210
1,000
Total Table 3+Month
January 2020
October 2019 53
December 2019 160
Dry
Total Table 3+Month
January 2020
October 2019 Dry
December 2019 120
Dry
Total Table 3+Month
January 2020
October 2019 66,000
December 2019 650
59,000
Total Table 3+Month
January 2020
October 2019 63
December 2019 66
62
Notes: C:\Users\frisacher\Desktop\[DRAFT - Outfall 002 & Intake Plots - Separate Graph Tabs.xlsx]3 PMPA_P11Intake and Outfall 002 Concentrations - HFPO-DAChemours Fayetteville Works, North CarolinaFigure4ARaleighApril 2020- Prior to March 9, 2020 Outfall 002 samples are 3.5 day time-weighted composite samplesexcept for samples on October 18, 21 and 22 2019, which were grab samples (shown as squaresymbols). Samples after March 9, 2020 are 24-hr flow-weighted samples.-Intake samples are grab samples.- The plant was shutdown and not discharging cooling water from Outfall 002 during the PlantTurn Around between October 12, 2019 and October 24, 2019. The data series arediscontinuous to represent the Plant Turn Around.Acronyms:ng / L: nanograms per liter1101001,00010,000100,000Concentration (ng/L)Outfall 002 External Lab AverageOutfall 002 External Lab Detects (Composite Samples)Outfall 002 External Lab Non‐DetectsRiver Intake AverageRiver Intake DetectsRiver Intake Non‐DetectsIntake River Water at Facility AverageIntake River Water at Facility DetectsIntake River Water at Facility Non‐detectsOutfall 002 External Lab Detects (Grab Samples)
Notes: C:\Users\frisacher\Desktop\[DRAFT - Outfall 002 & Intake Plots - Separate Graph Tabs.xlsx]3 PMPA_P11Intake and Outfall 002 Concentrations - PFMOAAChemours Fayetteville Works, North CarolinaFigure4BRaleighApril 2020- Prior to March 9, 2020 Outfall 002 samples are 3.5 day time-weighted composite samplesexcept for samples on October 18, 21 and 22 2019, which were grab samples (shown as squaresymbols). Samples after March 9, 2020 are 24-hr flow-weighted samples.-Intake samples are grab samples.-The plant was shutdown and not discharging cooling water from Outfall 002 during the PlantTurn Around between October 12, 2019 and October 24, 2019. The data series arediscontinuous to represent the Plant Turn Around.Acronyms:ng / L: nanograms per liter1101001,00010,000100,000Concentration (ng/L)Outfall 002 External Lab AverageOutfall 002 External Lab Detects (Composite Samples)Outfall 002 External Lab Non‐DetectsRiver Intake AverageRiver Intake DetectsRiver Intake Non‐DetectsIntake River Water at Facility AverageIntake River Water at Facility DetectsIntake River Water at Facility Non‐detectsOutfall 002 External Lab Detects (Grab Samples)
Notes: C:\Users\frisacher\Desktop\[DRAFT - Outfall 002 & Intake Plots - Separate Graph Tabs.xlsx]3 PMPA_P11Intake and Outfall 002 Concentrations - PMPAChemours Fayetteville Works, North CarolinaFigure4CRaleighApril 2020- Prior to March 9, 2020 Outfall 002 samples are 3.5 day time-weighted composite samplesexcept for samples on October 18, 21 and 22 2019, which were grab samples (shown as squaresymbols). Samples after March 9, 2020 are 24-hr flow-weighted samples.-Intake samples are grab samples.-The plant was shutdown and not discharging cooling water from Outfall 002 during the PlantTurn Around between October 12, 2019 and October 24, 2019. The data series arediscontinuous to represent the Plant Turn Around.Acronyms:ng / L: nanograms per liter1101001,00010,000100,000Concentration (ng/L)Outfall 002 External Lab AverageOutfall 002 External Lab Detects (Composite Samples)Outfall 002 External Lab Non‐DetectsRiver Intake AverageRiver Intake DetectsRiver Intake Non‐DetectsIntake River Water at Facility AverageIntake River Water at Facility DetectsIntake River Water at Facility Non‐detectsOutfall 002 External Lab Detects (Grab Samples)
APPENDIX A
Field Parameters
TABLE A.1GRAB SAMPLE FIELD PARAMETERS - 2020 QUARTER 1 - JANUARY 2019 EVENTChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.LocationpH Temperature (°C)Specific Conductivity (mS/cm)Dissolved Oxygen (mg/L)ORP (mV)Turbidity (NTU) 6A 7.1 14.4 0.10 9.8 180.4 240 6B 6.8 13.9 0.13 9.9 150.2 90 19A7.8019.2 0.13 10.1 145.7 100 19B8.2414.0 0.15 6.3 117.1 1 21A 7.35 6.9 0.15 10.9 197.2 <122 7.11 10.8 0.14 10.3 144.8 <123B 7.51 25.3 0.19 7.0 139.5 3 24A 7.57 14.8 0.97 9.8 169.8 85 24B 9.71 11.3 0.16 10.3 106.3 3 24C 9.38 15.5 0.17 9.5 90.6 <1Notes:-- - sample not collected°C - degrees Celsiusmg/L - milligrams per litermS/cm - milliSiemens per centimetermV - millivoltN/A - no data reportedNTU - nephelometric turbidity unitsORP - oxidation reduction potentialTR0795Page 1 of 1April 2020
TABLE A.2TEMPORAL COMPOSITE SAMPLE FIELD PARAMETERS - 2020 QUARTER 1 - JANUARY 2019 EVENTChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading17.057.2112.413.90.250.0910.099.69136.2151.988847A6.157.2511.915.22.440.0910.119.60187.6194.876727B7.047.2812.114.41.450.149.729.72155.0222.88310187.18N/A11.6N/A0.27N/A9.12N/A105.5N/A2N/A97.107.2516.017.10.360.099.039.03131.9182.688118107.177.6212.415.50.580.089.479.79132.3185.65564156.987.4712.516.10.800.099.469.18131.7197.38285187.3910.4418.518.90.610.998.238.27115.5134.75923207.207.9813.415.20.400.129.469.62103.9209.2886423A4.724.8817.616.80.180.157.847.92169.5235.732Notes:Initial reading collected at the start of sampling directly from the water stream.Final reading collected after sampling was complete, from autosampler reservoir.-- - sample not collected°C - degrees Celsiusmg/L - milligrams per litermS/cm - milliSiemens per centimetermV - millivoltN/A - no data reportedNTU - nephelometric turbidity unitsORP - oxidation reduction potentialLocationpHTemperature (°C)Specific Conductivity (mS/cm) Dissolved Oxygen (mg/L)Turbidity(NTU)ORP(mV)TR0795Page 1 of 1April 2020
APPENDIX B
Laboratory Reports and DVM Workbooks
ADQM Data Review Narrative - FAY P11 Samp 1Q20.doc 1 of 2
ADQM DATA REVIEW
NARRATIVE
Site Chemours FAY – Fayetteville
Project P11 Sampling 1Q20
Project Reviewer Michael Aucoin, AECOM as a Chemours contractor
Sampling Dates January 29 and 31, 2020
Analytical Protocol
Laboratory Analytical Method Parameter(s)
TestAmerica - Sacramento 537 Modified PFAS1
TestAmerica - Sacramento Cl. Spec. Table 3
Compound SOP
Table 3+ compounds
1 Perfluoroalkylsubstances, a list of 37 compounds including HFPO-DA.
Sample Receipt
The following items are noted for this data set:
•All samples were received in satisfactory condition and within EPA temperature guidelines on
January 30 and February 1, 2020
Data Review
The electronic data submitted for this project was reviewed via the Data Verification Module (DVM)
process.
Overall the data is acceptable for use without qualification, except as noted below:
•Several analytical results have been qualified J as estimated, and non-detect results qualified UJ
indicating an estimated reporting limit, due to poor or very poor recovery of a surrogate,
laboratory blank spike, or matrix spike; analysis preparation which exceeded the laboratory hold
time and; poor field duplicate or lab replicate precision. See the Data Verification Module (DVM)
Narrative Report for which samples were qualified, the specific reasons for qualification, and
potential bias in reported results.
Attachments
The DVM Narrative report is attached. The lab reports due to a large page count are stored on an
AECOM network shared drive and are available to be posted on external shared drives, or on a flash
drive.
ADQM Data Review Narrative - FAY P11 Samp 1Q20.doc 2 of 2
Data Verification Module (DVM)
The DVM is an internal review process used by the ADQM group to assist with the determination of data
usability. The electronic data deliverables received from the laboratory are loaded into the Locus EIM™
database and processed through a series of data quality checks, which are a combination of software
(Locus EIM™ database Data Verification Module (DVM)) and manual reviewer evaluations. The data is
evaluated against the following data usability checks:
•Field and laboratory blank contamination
•US EPA hold time criteria
•Missing Quality Control (QC) samples
•Matrix spike(MS)/matrix spike duplicate (MSD) recoveries and the relative percent differences
(RPDs) between these spikes
•Laboratory control sample(LCS)/control sample duplicate (LCSD) recoveries and the RPD
between these spikes
•Surrogate spike recoveries for organic analyses
•RPD between field duplicate sample pairs
•RPD between laboratory replicates for inorganic analyses
•Difference / percent difference between total and dissolved sample pairs.
There are two qualifier fields in EIM:
Lab Qualifier is the qualifier assigned by the lab and may not reflect the usability of the data. This
qualifier may have many different meanings and can vary between labs and over time within the same
lab. Please refer to the laboratory report for a description of the lab qualifiers. As they are lab
descriptors they are not to be used when evaluating the data.
Validation Qualifier is the 3rd party formal validation qualifier if this was performed. Otherwise this
field contains the qualifier resulting from the ADQM DVM review process. This qualifier assesses
the usability of the data and may not equal the lab qualifier. The DVM applies the following data
evaluation qualifiers to analysis results, as warranted:
Qualifier Definition
B Not detected substantially above the level reported in the laboratory
or field blanks.
R Unusable result. Analyte may or may not be present in the sample.
J Analyte present. Reported value may not be accurate or precise.
UJ Not detected. Reporting limit may not be accurate or precise.
The Validation Status Code field is set to “DVM” if the ADQM DVM process has been performed. If the DVM
has not been run, the field will be blank.
If the DVM has been run (Validation Status Code equals “DVM”), use the Validation Qualifier.
DVM Narrative ReportOnly one surrogate has relative percent recovery (RPR) values outside control limits and the parameter is a PFC (Nondetects).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC18-012920 01/29/2020 320-58184-7PerfluorohexanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7ADONA0.0021 UG/L537 ModifiedUJ3535_PFC0.0021PQLSTW-LOC18-012920 01/29/2020 320-58184-7NaDONA0.0021 ug/L537 ModifiedUJ3535_PFC0.0021PQLSTW-LOC19A-012920 01/29/2020 320-58181-310:2 Fluorotelomersulfonate0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PerfluorotetradecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluorooctadecanoicacid0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluoroundecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3N-methylperfluorooctanesulfonamidoacetic acid0.020 UG/L537 ModifiedUJ3535_PFC0.020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluoropentanesulfonic acid (PFPeS)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-36:2 Fluorotelomersulfonate0.020 ug/L537 ModifiedUJ3535_PFC0.020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3N-ethylperfluorooctanesulfonamidoacetic acid0.020 UG/L537 ModifiedUJ3535_PFC0.020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluorohexadecanoicacid (PFHxDA)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluorononanesulfonic acid0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorotridecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorooctaneSulfonamide0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-39Cl-PF3ONS0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-31H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)0.020 ug/L537 ModifiedUJ3535_PFC0.020PQLSTW-LOC19A-012920 01/29/2020 320-58181-311Cl-PF3OUdS0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluorododecanesulfonic acid (PFDoS)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3ADONA0.0021 UG/L537 ModifiedUJ3535_PFC0.0021PQLPage 1 of 17
Only one surrogate has relative percent recovery (RPR) values outside control limits and the parameter is a PFC (Nondetects).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC19A-012920 01/29/2020 320-58181-3NaDONA0.0021 ug/L537 ModifiedUJ3535_PFC0.0021PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorodecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorodecaneSulfonic Acid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorohexaneSulfonic Acid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorododecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3N-methyl perfluoro-1-octanesulfonamide0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorobutaneSulfonic Acid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluoroheptanesulfonic acid (PFHpS)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorononanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorotetradecanoicAcid0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-31H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)0.020 ug/L537 ModifiedUJ3535_PFC0.020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3N-ethylperfluoro-1-octanesulfonamide0.0020 UG/L537 ModifiedUJ3535_PFC0.0020PQLPage 2 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values less than the lower control limit. The actual detection limits may behigher than reported.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC18-012920 01/29/2020 320-58184-7NVHOS0.0020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7NVHOS0.0020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PMPA0.010 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC18-012920 01/29/2020 320-58184-7PMPA0.010 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC18-012920 01/29/2020 320-58184-7PEPA0.020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PEPA0.020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PFO5DA0.0020 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PFO5DA0.0020 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6NVHOS0.0020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6NVHOS0.0020 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6PMPA0.010 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC22-012920 01/29/2020 320-58181-6PMPA0.010 UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC22-012920 01/29/2020 320-58181-6PFO5DA0.0020 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6PFO5DA0.0020 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC22-012920 01/29/2020 320-58181-6PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC24A-012920 01/29/2020 320-58185-3Perfluorododecanesulfonic acid (PFDoS)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLPage 3 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values less than the lower control limit. The actual detection limits may behigher than reported.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOCEB1-012920 01/29/2020 320-58180-1PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOCEB1-012920 01/29/2020 320-58180-1PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOCEB2-012920 01/29/2020 320-58180-2PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOCEB2-012920 01/29/2020 320-58180-2PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOCFB-012920 01/29/2020 320-58180-3PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOCFB-012920 01/29/2020 320-58180-3PFMOAA0.0050 ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC24A-012920 01/29/2020 320-58185-3Perfluoropentanesulfonic acid (PFPeS)0.0020 ug/L537 ModifiedUJ3535_PFC0.0020PQLPage 4 of 17
The preparation hold time for this sample was exceeded. The reporting limit may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC18-01292001/29/2020320-58184-7PerfluoropentanoicAcid0.049UG/L537 ModifiedUJ3535_PFC0.049PQLSTW-LOC18-01292001/29/2020320-58184-7Perfluorohexadecanoicacid (PFHxDA)0.089ug/L537 ModifiedUJ3535_PFC0.089PQLPage 5 of 17
One or more surrogates had relative percent recovery (RPR) values less than the data rejection level. The reported non-detect result is an estimated value.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC19A-01292001/29/2020320-58181-32-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-01292001/29/2020320-58181-32-(N-methyl perfluoro-1-octanesulfonamido)-ethanol0.0040ug/L537 ModifiedUJ3535_PFC0.0040PQLPage 6 of 17
Associated LCS and/or LCSD analysis had relative percent recovery (RPR) values higher than the upper control limit. The reported result may bebiased high.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC7A-012920 01/29/2020 320-58184-2Byproduct 50.0060 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-012920 01/29/2020 320-58184-2Byproduct 50.0060 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-012920 01/29/2020 320-58184-3Byproduct 50.039 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-012920 01/29/2020 320-58184-3Byproduct 50.040 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4Byproduct 50.15 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4Byproduct 50.15 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23A-012920 01/29/2020 320-58184-8Byproduct 52.0 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0029PQLSTW-LOC23A-012920 01/29/2020 320-58184-8Byproduct 52.1 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0029PQLSTW-LOC1-012920 01/29/2020 320-58184-1Byproduct 50.0061 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-012920 01/29/2020 320-58184-1Byproduct 50.0061 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC10-012920 01/29/2020 320-58184-5Byproduct 50.38 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.012PQLSTW-LOC10-012920 01/29/2020 320-58184-5Byproduct 50.40 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.012PQLSTW-LOC15-012920 01/29/2020 320-58184-6Byproduct 50.36 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-012920 01/29/2020 320-58184-6Byproduct 50.36 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 7 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values higher than the upper control limit. The reported result may be biasedhigh.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC24A-012920 01/29/2020 320-58185-3Byproduct 50.0054 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24A-012920 01/29/2020 320-58185-3Byproduct 50.0059 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24A-012920-D 01/29/2020 320-58185-4Byproduct 50.0052 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24A-012920-D 01/29/2020 320-58185-4Byproduct 50.0051 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-012920 01/29/2020 320-58181-8Byproduct 50.0037 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-012920 01/29/2020 320-58181-8Byproduct 50.0042 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24C-012920 01/29/2020 320-58181-9Byproduct 40.0080 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24C-012920 01/29/2020 320-58181-9Byproduct 50.044 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24C-012920 01/29/2020 320-58181-9Byproduct 50.042 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1R-EVE0.0078 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1R-EVE0.0081 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1Byproduct 40.021 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1Byproduct 40.021 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1Byproduct 50.0073 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-012920 01/29/2020 320-58181-1Byproduct 50.0076 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-012920 01/29/2020 320-58181-2Byproduct 40.0034 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 8 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values higher than the upper control limit. The reported result may be biasedhigh.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC6B-012920 01/29/2020 320-58181-2Byproduct 40.0030 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-012920 01/29/2020 320-58181-2Byproduct 50.0051 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-012920 01/29/2020 320-58181-2Byproduct 50.0054 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-012920 01/29/2020 320-58184-2Byproduct 40.0047 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-012920 01/29/2020 320-58184-2Byproduct 40.0044 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-012920 01/29/2020 320-58184-3R-EVE0.0036 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-012920 01/29/2020 320-58184-3R-EVE0.0040 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-012920 01/29/2020 320-58184-3Byproduct 40.0089 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-013120 01/31/2020 320-58261-1Byproduct 50.28 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.058PQLSTW-LOC8-013120 01/31/2020 320-58261-1Byproduct 50.25 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.058PQLSTW-LOC9-012920 01/29/2020 320-58184-4PFESA-BP10.16 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4PFESA-BP10.16 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4R-EVE0.010 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4R-EVE0.011 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4Byproduct 40.080 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-012920 01/29/2020 320-58184-4Byproduct 40.082 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6Byproduct 40.040 UG/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0020PQLPage 9 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values higher than the upper control limit. The reported result may be biasedhigh.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSOPSTW-LOC22-012920 01/29/2020 320-58181-6Byproduct 40.037 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6Byproduct 50.26 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-012920 01/29/2020 320-58181-6Byproduct 50.24 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23B-012920 01/29/2020 320-58181-7Byproduct 50.034 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23B-012920 01/29/2020 320-58181-7Byproduct 50.033 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Byproduct 50.0048 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Byproduct 50.0041 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC19B-012920 01/29/2020 320-58181-4Byproduct 50.0053 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC19B-012920 01/29/2020 320-58181-4Byproduct 50.0057 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920 01/29/2020 320-58185-1Byproduct 40.021 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920 01/29/2020 320-58185-1Byproduct 50.085 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920 01/29/2020 320-58185-1Byproduct 50.088 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2Byproduct 40.022 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2Byproduct 40.023 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2Byproduct 50.082 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2Byproduct 50.080 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 10 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values higher than the upper control limit. The reported result may be biasedhigh.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC21A-012920 01/29/2020 320-58181-5Byproduct 50.0087 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-012920 01/29/2020 320-58181-5Byproduct 50.0089 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-012920 01/29/2020 320-58184-1R-EVE0.0023 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-012920 01/29/2020 320-58184-1R-EVE0.0025 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-012920 01/29/2020 320-58184-1Byproduct 40.0055 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-012920 01/29/2020 320-58184-1Byproduct 40.0059 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-012920 01/29/2020 320-58184-6R-EVE0.022 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-012920 01/29/2020 320-58184-6R-EVE0.021 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-012920 01/29/2020 320-58184-6Byproduct 40.12 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-012920 01/29/2020 320-58184-6Byproduct 40.12 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 11 of 17
High relative percent difference (RPD) observed between field duplicate and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC20-012920 01/29/2020 320-58185-1Hfpo Dimer Acid0.089 UG/L537 ModifiedJ3535_PFC0.0040PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2Hfpo Dimer Acid0.066 UG/L537 ModifiedJ3535_PFC0.0040PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2R-EVE0.0075 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-012920-D 01/29/2020 320-58185-2R-EVE0.0067 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 12 of 17
Only one surrogate has relative percent recovery (RPR) values outside control limits and the parameter is a PFC (Detects).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluoroheptanoicAcid0.0029 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PFOA0.0044 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Perfluorobutanoic Acid0.0086 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluorohexanoicAcid0.0043 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PerfluoropentanoicAcid0.0032 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PFOS0.0070 UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19A-012920 01/29/2020 320-58181-3Hfpo Dimer Acid0.019 UG/L537 ModifiedJ3535_PFC0.0040PQLSTW-LOC18-012920 01/29/2020 320-58184-7Hfpo Dimer Acid0.0060 UG/L537 ModifiedJ3535_PFC0.0040PQLPage 13 of 17
Quality review criteria exceeded between the REP (laboratory replicate) and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC7B-012920 01/29/2020 320-58184-3Byproduct 40.010 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-013120 01/31/2020 320-58261-1PFESA-BP20.20 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.030PQLSTW-LOC8-013120 01/31/2020 320-58261-1PFESA-BP20.16 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.030PQLSTW-LOC20-012920 01/29/2020 320-58185-1Byproduct 40.021 UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 14 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values less than the lower control limit but above the rejection limit. Thereported result may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC24A-01292001/29/2020320-58185-3PFMOAA0.0099ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC24A-01292001/29/2020320-58185-3PFMOAA0.010ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC24B-01292001/29/2020320-58181-8PFMOAA0.0082ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC24B-01292001/29/2020320-58181-8PFMOAA0.0081ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC24C-01292001/29/2020320-58181-9PFMOAA0.010ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC24C-01292001/29/2020320-58181-9PFMOAA0.0096ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC6A-01292001/29/2020320-58181-1PFMOAA0.013ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC6A-01292001/29/2020320-58181-1PFMOAA0.013ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC6B-01292001/29/2020320-58181-2PFMOAA0.0089ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC6B-01292001/29/2020320-58181-2PFMOAA0.0086ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC23A-01292001/29/2020320-58184-8PFMOAA0.50ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.011PQLSTW-LOC23A-01292001/29/2020320-58184-8PFMOAA0.51ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.011PQLSTW-LOC23B-01292001/29/2020320-58181-7PFMOAA0.011ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC23B-01292001/29/2020320-58181-7PFMOAA0.011ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC22-01292001/29/2020320-58181-6PFO2HxA0.010ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-01292001/29/2020320-58181-6PFO2HxA0.0095ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 15 of 17
Associated MS and/or MSD analysis had relative percent recovery (RPR) values less than the lower control limit but above the rejection limit. Thereported result may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC19A-012920 01/29/2020 320-58181-3PFMOAA0.0087 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC19A-012920 01/29/2020 320-58181-3PFMOAA0.0083 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC19B-012920 01/29/2020 320-58181-4PFMOAA0.014 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC19B-012920 01/29/2020 320-58181-4PFMOAA0.014 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-012920 01/29/2020 320-58185-1PFMOAA0.035 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-012920 01/29/2020 320-58185-1PFMOAA0.038 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC21A-012920 01/29/2020 320-58181-5PFMOAA0.015 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC21A-012920 01/29/2020 320-58181-5PFMOAA0.015 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC18-012920 01/29/2020 320-58184-7PFO2HxA0.0037 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-012920 01/29/2020 320-58184-7PFO2HxA0.0038 ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 16 of 17
The preparation hold time for this sample was exceeded. The reported result may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:P11 Sampling 1Q20AnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResult TypeField Sample IDPrepUnitsSTW-LOC18-012920 01/29/2020 320-58184-7Perfluorobutanoic Acid0.11 UG/L537 ModifiedJ3535_PFC0.035PQLPage 17 of 17