2020.01.31_CCO.p11.b_PFASCharacterizationQuarterlyReport3

CHARACTERIZATION OF PFAS IN
PROCESS AND NON-PROCESS
WASTEWATER AND STORMWATER
Quarterly Report #3

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

January 31, 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 .............................................................................................. 5
2.2.1 General Field Methods .................................................................... 5
2.2.2 Decontamination Methods .............................................................. 5
2.2.3 Grab Sampling Methods ................................................................. 6
2.2.4 Temporal Composite Sampling Methods ....................................... 6
2.2.5 Sample Shipping, Chain of Custody, and Holding Times .............. 7
2.2.6 Field QA/QC Samples .................................................................... 7
2.2.7 Documentation ................................................................................ 7
2.3 Laboratory Methods .................................................................................... 7
2.3.1 Analytical Methods ......................................................................... 7
2.3.2 Laboratory and Field QA/QC.......................................................... 8
3. RESULTS AND OBSERVATIONS .................................................................... 9
3.1 Data Quality ................................................................................................. 9
3.1.1 Data Management and Reporting.................................................. 10
3.1.2 QA/QC Samples ............................................................................ 10
3.2 Investigative Sample Results ..................................................................... 11
3.3 Observations .............................................................................................. 11
4. SAMPLING PROGRAM STATUS ................................................................... 17
4.1 Activities Planned for Next Quarter .......................................................... 17
5. SUMMARY AND RECOMMENDATIONS .................................................... 18
6. REFERENCES ................................................................................................... 19

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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 – 2019 Quarter 4
Table 5: Analytical Results – All Events
Table 6: Total Daily Precipitation – 2019 Quarter 4
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
mg/L – Milligrams per liter
mL – Milliliter
MS – Matrix spike
MSD – Matrix spike duplicates
mV – Millivolts
ng/L – Nanograms per liter
NCCW – Non-contact cooling water
NTU – Nephelometric turbidity units
ORP – Oxidation/Reduction Potential
PEPA – Perfluoroethoxypropyl carboxylic acid
PFAS – Per- and polyfluoroalkyl substances
PFESA-BP1 – Byproduct 1
PFESA-BP2 – Byproduct 2
PFMOAA – 2,2-difluoro-2-(trifluoromethoxy) acetic acid
PFNA – Perfluorononanoic acid
PFO3DA – Perfluoro(3,5,7-trioxaoctanoic) acid
PFO4DA – Perfluoro(3,5,7,9-tetraoxadecanoic) acid
PFO5DA – Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
PMPA – Perfluoromethoxypropyl carboxylic acid
QA/QC – Quality assurance/ quality control
RPD – Relative percent difference
SC – Specific conductance
SOP –Standard Operating Procedure

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ACRONYMS AND ABBREVIATIONS (CONTINUED)
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.
Geosyntec Consultants of NC, PC is licensed to practice geology in North Carolina. The
certification number (Firm’s License Number) is C-295.
January 31, 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 third 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 (the 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 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) as well as the June 2019 event PFAS characterization data that was pending
at the time of submission of the first report.
The second quarterly report also included data from three supplementary sampling
activities conducted in 2019 Quarter 2 and 2019 Quarter 3, including: (i) a wastewater
treatment plant (WWTP) sampling event (conducted in July 2019); (ii) a conveyance
network sampling event (conducted in July 2019); and (iii) an open channel to Outfall
002 sampling event (conducted in May 2019). These supplemental activities were

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recommended based on observations from the first quarterly report (Geosyntec 2019a).
An investigation of the temporal variation of PFAS at Locations 18 and 23A was also
conducted by collecting four (4) grab samples over four (4) hours.
Recommendations made in the second quarterly report included the following: (i) collect
Locations 18 and 23A as temporal composite samples in future sampling events, (ii)
collect Location 8 (the effluent to the WWTP) approximately one hydraulic residence
time after the sample collection at Location 22 (the influent to the WWTP) and other
upstream locations, (iii) remove Locations 16, 17A, and 17B from the Paragraph 11(c)
sampling program, which was consistent with the recommendation made from the first
quarterly report, and (iv) continue evaluation into the PFAS related to the WWTP.
Recommendations (i) and (iii) were implemented with the December 2019 event;
recommendation (ii) was implemented with the August 2019 event. Recommendation
(iv) is ongoing.
1.2 Activities Completed for this Quarterly Report
The activity period for this quarterly report includes 2019 Quarter 4 (October, November,
and December 2019). 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 fourth bimonthly PFAS
characterization sampling event on October 9 and October 10, 2019 (the October 2019
event) and for the fifth bimonthly PFAS characterization sampling event on December
20 and 23, 2019 (the December 2019 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 the 2019 Quarter 2 report.
Previous bimonthly sampling events were conducted during dry periods; the October and
December 2019 events were also conducted during dry periods to enable comparison to
the prior events. To characterize PFAS concentrations during rain events, stormwater
grab samples are being collected as part of a dedicated stormwater sampling program
proposed by Chemours in the Cape Fear River PFAS Mass Loading Reduction Plan
(Geosyntec, 2019d). The results from the first stormwater grab sampling event in June
2019 were reported in Geosyntec (2019d); results from additional stormwater grab
sampling events are planned to be reported as an appendix to the next quarterly report on
April 30, 2020. Future bimonthly sampling events will continue to be conducted during
dry periods to complement the findings from the stormwater sampling program.

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The Plant Turn Around was an approximately one-month period where production was
reduced or shut down for plant maintenance activities. Plant Turn Around began in late
September 2019 prior to the October 2019 sampling event and was completed in early
November 2019 before the December 2019 sampling event.
During the Plant Turn Around, sediment from both the Cooling Water Channel and the
Open Channel to Outfall 002 was removed, between the dates of October 15 and October
21, 2019, in accordance with Proposed Action 3 from the Cape Fear River PFAS Mass
Loading Reduction Plan (Geosyntec, 2019d). This removal was after the October 2019
event and before the December 2019 event.
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 2019 Quarter 4
report.
2.1 Sample Locations
Proposed sample locations outlined in the PFAS Characterization Sampling Plan
(Geosyntec, 2019a) to meet the requirements of Paragraph 11(b) of the executed Consent
Order are described in Table 1 and shown in Figure 2.
In the October 2019 event, investigative samples were collected from nineteen (19)
locations as listed in Table 2. Locations 2, 3, 4, 5, 11, 12, and 13 were not sampled for
the October 2019 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); results from stormwater grab sampling program will be reported as an appendix
to the next quarterly report as described in Section 1.2. Locations 24A and 24C were
unable to be sampled due to Plant Turn Around. 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 October 2019 event and a sample was collected from this pond.
In the December 2019 event, investigative samples were collected from twenty-two (22)
locations as listed in Table 2. Locations 2, 3, 4, 5, 11, and 13 were not sampled for the
December 2019 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); results from the stormwater grab sampling program will be reported as an
appendix to the next quarterly report as described in Section 1.2. The south sediment pond
(Location 21A) was active during the December event and a sample was collected from
this pond. In accordance with recommendations from previous quarterly reports, during
the December 2019 event, Locations 18 and 23A were equipped with autosamplers and
collected as temporal composites and Location 8 was collected approximately 40 hours
after Location 22. These locations will continue to be collected in this manner in the
future.

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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.
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;

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• 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 October 2019 and December 2019 events 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 sample. Prior to grab sample collection, field parameters
were measured using a flow through cell for all grab sample locations.
In accordance with recommendations from Geosyntec (2019c), Location 8 (effluent to
the WWTP) was collected approximately one hydraulic residence time after Location 22
(influent to the WWTP). The WWTP hydraulic residence time was estimated at
approximately 40 hours under current operations. The delay of sampling at Location 8 to
approximately 40 hours after the collection of Location 22 was implemented beginning
with the December 2019 event (Geosyntec, 2019c).
2.2.4 Temporal Composite Sampling Methods
Temporal composite samples were collected during the October 2019 and December
2019 events 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, 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.

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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 October
2019 investigative samples:
• Two blind field duplicates;
• Three equipment blanks for the dip rod, peristaltic pump, and autosampler;
• One field blank; and
• One trip blank.
The following field QA/QC samples were collected and analyzed along with the
December 2019 investigative samples:
• Two blind field duplicates;
• Two equipment blanks for the dip rod and autosampler;
• One field blank; and
• One trip blank.
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:

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• 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 December 2019
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 October 2019 and December
2019 events are reported in Table 4. The following observations were noted for the
QA/QC samples:
October 2019
• The RPD for field duplicate pairs in the October 2019 event was 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 October
2019 Equipment Blanks (3), Trip Blank or Field Blank.
December 2019
• The RPD for the field duplicate pairs in the December 2019 event was less than
30% for all PFAS.
• No PFAS were detected above the associated reporting limits in the two
equipment blanks for the December 2019 event with the exception of
Perfluoromethoxypropyl carboxylic acid (PMPA), which was detected in both
equipment blanks at 10 nanograms per liter (ng/L). Associated samples as
identified by the December Data Review Narrative Whitebook (Appendix B)
were B qualified. B qualifiers are added to sample results that are up to five
times the blank concentration, and indicate that the sample results may be biased

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high, or may be false positives, because the associated blank contained a
comparable concentration.
• No PFAS were detected above the associated reporting limits in the December
2019 Trip Blank with the exception of Hexafluoropropylene oxide dimer acid
(HFPO-DA, detected at 6.7 ng/L), PMPA (detected at 11 ng/L),
Perfluorononanoic acid (detected at 2.9 ng/L), Perfluorotridecanoic acid
(detected at 27 ng/L), and Perfluoroundecanoic acid (detected at 5 ng/L).
Associated samples as identified by the December Data Review Narrative
Whitebook (Appendix B) were B qualified.
• No PFAS were detected above the associated reporting limits in the December
2019 Field Blank with the exception of PMPA, which was detected in both
equipment blanks at 10 ng/L. Associated samples as identified by the December
Data Review Narrative Whitebook (Appendix B) were B qualified.
3.2 Investigative Sample Results
PFAS concentrations for all sample locations in the October 2019 and December 2019
events are provided in Table 4. Figure 3A presents HFPO-DA, 2,2-difluoro-2-
(trifluoromethoxy) acetic acid (PFMOAA), and PMPA concentrations for locations in the
October 2019 and December 2019 events that reach Outfall 002; August 2019 results are
provided for comparison. Figure 3B presents the Total Table 3+ concentrations for
locations in the October 2019 and December 2019 events that reach Outfall 002; August
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 report. The analytical reporting limits associated with
the October 2019 and December 2019 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 October 2019
and December 2019 events. As noted above, sampling in October 2019 occurred during
Plant Turn Around.

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Intake River Water at Facility [Location 1]
River intake samples continued to exhibit modest concentrations of PFAS during 2019.
Fourteen (14) PFAS were detected in the samples collected at Location 1 in both October
and December 2019 (Table 4). These PFAS are generally observed in all other Site
locations that derive water from the river intake.
Process Wastewater [Locations 18, 19A, 19B, and 23B]
Process wastewater Location 18 (Kuraray process wastewater) was collected as a
temporal composite for the December 2019 event; the measured concentrations of HFPO-
DA, PFMOAA, and PMPA were similar to but lower than previous events (Figure 3A).
Total Table 3+ PFAS concentrations were slightly higher than previous events. For the
remaining process wastewater sample locations (Locations 19A, 19B, and 23B) there are
no apparent trends. The process wastewater locations do not appear to be contributing
large quantities of PFAS to Outfall 002.
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 to 30 ng/L) and PFMOAA (ranging from below the 5 ng/L
reporting limit to 13 ng/L). PMPA was detected at each location ranging from 18 ng/L to
53 ng/L. These are similar to the concentrations detected at Location 1 (Intake River
Water at Facility).
Total Table 3+ PFAS concentrations for non-process wastewater are provided in Table 4
and Figure 3B. There are three sampling locations in Monomers IXM for non-process
wastewater (Figure 2). Samples were not collected in October 2019 at Locations 24A and
24C to lack of flow during the Plant Turn Around (see above Section 2.1 for details). In
December 2019, concentrations of Table 3+ PFAS at 24A and 24C were generally higher
than prior sampling events; concentrations at Location 24B were generally consistent
with previous events (Table 5). The increases at Locations 24A and 24C may be related
to increased levels of site activities (i.e., general construction traffic which may generate
dust that settles in the open channels) related to construction of the Thermal
Oxidizer/Scrubber System in this area. These locations will continue to be sampled in
future events.

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Stormwater [Location 10]
Location 10 receives stormwater discharge from the Chemours Monomers/IXM area. The
highest HFPO-DA concentration (15,000 ng/L) during the October 2019 event was at
Location 10 (Figure 3A, Table 4). Several other PFAS were detected in elevated
concentrations, including PFESA-BP1 at 23,000 ng/L, contributing to the highest Total
Table 3+ concentration (66,000 ng/L) during October 2019 (Table 4). Sediment and algae
were noted in the channel and composite bottle during sampling. Prior supplemental
sediment sampling and cooling water channel sampling activities suggest sediments may
be contributing to elevated PFAS concentrations (Geosyntec, 2019c) and a
recommendation to remove sediment from the cooling water channel was made. This
activity was completed in mid- to late-October during the Plant Turn Around.
Concentrations measured in December 2019 at Location 10 indicate HFPO-DA had
decreased to 230 ng/L and total Table 3+ PFAS had decreased to 650 ng/L. Supplemental
targeted stormwater characterization and sampling is planned, as part of Paragraph 12
efforts, to characterize potential sources for these elevated concentrations in the
Monomers/IXM area.
Non-Process Wastewater and Stormwater [Locations 7A, 9, 12, 14, 15 and 21A]
In October 2019, samples that contained both non-process wastewater and stormwater
generally had PFAS detected at higher concentrations than the non-process wastewater
only locations. Location 9 had the highest concentrations of HFPO-DA, PFMOAA, and
PMPA among non-process wastewater and stormwater locations, with concentrations
measured at 2,400 ng/L, 38 ng/L, and 110 ng/L for HPFO-DA, PFMOAA, and PMPA,
respectively. Location 9 is located in the southwest corner of the Cooling Water Channel
in the Monomers/IXM area and receives stormwater from Vinyl Ethers South and Vinyl
Ethers North. Targeted sediment removal was conducted in the Cooling Water Channel
during the Plant Turn Around. In December 2019, the sample collected from this location
had lower concentrations than previous events, suggesting that sediment removal may
have helped to decrease PFAS loading (Table 5).
The remaining non-process wastewater and stormwater samples (Locations 7A, 12, 14,
15, and 21A) had HFPO-DA ranging from 9.3 to 140 ng/L, PFMOAA ranging from
below the reporting limit of 5 ng/L to 21 ng/L, and PMPA ranging from 21 to 71 ng/L in
the October 2019 and December 2019 events. These locations are either in or receive
water from the Cooling Water Channel and Open Channel to Outfall 002 where sediment
removal occurred during the Plant Turn Around and generally had lower concentrations

TR0795 14 31-January-20
in December 2019 compared to October 2019. This indicates sediment removal may have
contributed to lower concentrations at these locations.
The highest concentrations among the non-process wastewater and stormwater locations
in December 2019 were primarily detected at Location 21A, which is associated with the
sediment pond. The sedimentation pond receives intake water, stormwater and non-
process wastewater and is designed to settle solids prior to water being released. There
was no sediment removal from the sedimentation pond during the Plant Turn Around.
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), had lower HFPO-DA and
PMPA concentrations than previous summer sampling events but still had elevated
concentrations. The source of these elevated concentrations is being explored via ongoing
investigation into WWTP operations; findings from this investigation will be included in
the next quarterly report. The range for HFPO-DA in October 2019 and December 2019
was 110 ng/L to 2,200 ng/L, PMPA was not detected above a reporting limit of 57 ng/L,
and PFMOAA was detected at similar concentrations to previous events at 890 ng/L to
1,100 ng/L. The reporting limit for PMPA was high for both events and will be re-
analyzed to achieve lower reporting limits. PFAS concentrations for Location 23A
exhibited temporal variation during the collection of four (4) grab samples over time
conducted in the August 2019 event (Geosyntec, 2019c), and it was recommended to
collect Location 23A as a temporal composite in future events. This recommendation was
made after the October 2019 event was collected and was implemented for the December
2019 event.
Consistent with observations from the supplemental WWTP sampling program
conducted in July 2019, the remaining portions of the Terracotta Pipe that are in use may
continue to be a minor source 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 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 October 2019 and December 2019
events, 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 previous quarterly
report was to collect the sample from Location 8 at least one hydraulic residence time
(approximately 40 hours) after the collection of the sample from Location 22; this change

TR0795 15 31-January-20
was implemented in December 2019 event and is described further in Section 3.5.
Ongoing investigation into WWTP operations and a repeat of the supplemental WWTP
sampling program described in Geosyntec (2019c) is planned for 2020 Quarter 1; findings
will be included in the next quarterly report.
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 (30 ng/L, J qualified), PFMOAA (24 ng/L, J qualified), and PMPA (34 ng/L)
in October 2019 (Figure 3A). The Location 20 HFPO-DA concentration (30 ng/L) was
lower or similar to the samples collected at the two streams of water that combined to
form the total flow at Location 20: Location 7B, Open Channel after the WWTP (23 ng/L,
J qualified) and Location 15, Cooling Water Channel water before it joins the Open
Channel to Outfall 002 (140 ng/L). PMPA and PFMOAA concentrations at Location 20
were also lower or similar to the PMPA and PFMOAA concentrations at Locations 7B
and 15, as well. This is not consistent with what was observed in previous sampling
events, where HFPO-DA, PFMOAA and PMFPA at Location 20 were often observed at
higher concentrations than Locations 7B and 15 (Table 5). Based on previous
observations, sediment removal from the Open Channel to Outfall 002 was
recommended. This occurred during the Plant Turn Around, after collection of the
October 2019 samples.
• In December 2019, the sample collected at Location 20 (Outfall 002) had
detectable concentrations of HFPO-DA (42 ng/L), PFMOAA (22 ng/L, J
qualified), and PMPA (33 ng/L, B qualified) (Figure 3A). These concentrations
were similar to, though occasionally higher than, the concentrations of the three
streams that formed the total flow at Location 20 (Locations 7B, 12, and 15), as
were Total Table 3+ concentrations (Figure 3B). Overall, PFAS concentrations
at Locations 7B, 12, 15, and 20 during December 2019 were lower than what
has been observed during previous events. Future characterization will help
continue to assess the effect of this sediment removal from the Open Channel
to Outfall 002.
• Chemours is tracking PFAS concentrations at Outfall 002 (Location 20) to
monitor trends. Figures 4A, 4B, and 4C provide time trends for HFPO-DA,
PFMOAA, and PMPA observed at Outfall 002 to-date in 2019. These figures
indicate increases in concentrations during the annual Plant Turn Around in
mid- to late-October, which are probably due to (1) an increase in PFAS-laden
sediment in the water column due to disturbance of the sediment during
sediment removal and (2) the flow at Outfall 002 primarily consisting of

TR0795 16 31-January-20
stormwater during the Plant Turn Around, which in some locations (e.g.,
IXM/Monomers area) has shown higher PFAS concentrations compared to non-
process wastewater (Geosyntec, 2019d). Concentrations measured at Outfall
002 generally subsided once the plant was operational again in early November.

TR0795 17 31-January-20
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 will be collected from the Facility on a bimonthly basis. The
most recent bimonthly sampling event occurred during the last week of January 2020 and
samples were collected from locations that contained water reaching Outfall 002. The
next quarterly report will be submitted in April 2020 and will provide results for any
Paragraph 11(c) samples described in Table 1 available at the time of reporting.
Ongoing investigation into the WWTP, including a repeat of the supplemental WWTP
sampling described in Geosyntec (2019c) and continued review of WWTP procedures is
also planned for 2020 Quarter 1.
Supplemental targeted stormwater sampling is planned during 2020 Quarter 1 to
characterize potential stormwater-related PFAS sources in the Monomers/IXM area.

TR0795 18 31-January-20
5. SUMMARY AND RECOMMENDATIONS
Pursuant to Consent Order Paragraph 11(c), Chemours conducted two sample
characterization events in 2019 Quarter 4 and these results are presented in this report.
The results from the October 2019 and December 2019 events indicate the intake water
contains PFAS and this water is then distributed throughout the Facility. HFPO-DA
concentrations in the intake samples decreased in October and December 2019 relative
to previous samples.
Samples collected from discharges that reach Outfall 002 (Locations 8, 15, and 23A) were
also observed to have elevated PFAS. Sediment removal actions in the Cooling Water
Channel appeared to result in reduced PFAS concentrations in the conveyance network
compared to previous bimonthly sampling events; sediment removal from the Open
Channel to Outfall 002 was less conclusive. Supplemental targeted stormwater sampling
is also planned during 2020 Quarter 1 to continue to characterize potential stormwater-
related PFAS sources in the Monomers/IXM area. The effects of sediment removal from
the conveyance network will continue to be assessed in future sampling events.
Further evaluation into the source of PFAS observed at Location 8 (effluent to the
WWTP) in the October and December 2019 events is recommended; this will be
evaluated by repeating the supplemental WWTP sampling program conducted in 2019
Quarter 2 (Geosyntec, 2019c). The supplemental sampling is planned for 2020 Quarter 1.
Ongoing investigation into WWTP operations is also being conducted. A summary of the
supplemental WWTP plan and operations investigation will be included as a part of the
next 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.

TR0795 19 31-January-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, 2019.
Geosyntec, 2019b. Characterization of PFAS in Process and Non-Process Wastewater
and Stormwater: Quarterly Report #1. July, 2019.
Geosyntec, 2019c. Characterization of PFAS in Process and Non-Process Wastewater
and Stormwater: Quarterly Report #2. October, 2019.
Geosyntec, 2019d. Cape Fear River PFAS Loading Reduction Plan. August, 2019.

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 dischargeTemporal 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23AKuraray northern leased area combined process wastewater and NCCW; manhole on Terracotta PipeTemporal 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 DescriptionSampling MethodSample CategoryTR0795January 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)February (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 NS3 Chemours PPA area stormwater dischargeTemporal CompositeNS NS NS NS NS4 Combined stormwater discharge from Kuraray northern leased area and Chemours PPA areaTemporal CompositeNS NS NS NS NS5 Kuraray southern leased area stormwater Temporal Composite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 002Temporal 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NS11 Stormwater discharge from portion of grassy field to north of decommissioned Chemours Teflon area Temporal CompositeNS NS NS NS NS12 DuPont area southern drainage ditch stormwater discharge and NCCWTemporal CompositeNS NSNS13 DuPont area northern drainage ditch stormwater discharge and NCCWTemporal CompositeNS NS NS NS NS14 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NS2NS2NS217A Chemours PPA Area waste acid trailerGrabNS2NS2NS217B Chemours PPA Area waste rinse water trailerGrabNS2NS2NS218 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 sumpTemporal CompositeOutfall21A Sediment Basin SouthGrab  21B Sediment Basin NorthGrab4NS4NS4NS4NS4NS422 WWTP combined influentGrab 23AKuraray northern leased area combined process wastewater and NCCW; manhole on Terracotta PipeGrab/Temoral Composite3323B Kuraray laboratory process wastewaterGrab5NS5NS24A Chemours Monomers IXM Vinyl Ethers South NCCWGrabNS624B Chemours Monomers IXM Line 3 and Line 4 Extruder NCCWGrab24C Chemours Monomers IXM Water Return Header NCCWGrabNS6NotesSamples 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), and 20 December 2019 & 23 December 2019 (December 2019 event).Sample 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 Quarter 3 (Q3) or Quarter 4 (Q4) 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 Quarter 2 (Q2), Q3, or Q4 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 plantSample NumberSample Location Description Sampling MethodSample Collected2019 2020Sample CategoryTR0795January 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
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
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
F-53B Major F-53B Major 73606-19-6 C8HClF16O4S
F-53B Minor F-53B Minor 83329-89-9 C10HClF20O4S
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 Chemical Formula
Table 3+ Lab SOP
Analytical Method Common Name Chemical Name
TR0795 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC P.C.
Location ID
Sampling Event October 2019 December 2019 October 2019 December 2019
Field Sample ID STW-LOC1-101019 STW-LOC-1-122019 STW-LOC6A-100919 STW-LOC-6A-122019
Date Sampled 10/10/2019 12/20/2019 10/9/2019 12/20/2019
Analytical Laboratory TestAmerica TestAmerica TestAmerica TestAmerica
QA/QC -- -- ----
Table 3+ Lab SOP (ng/L)
HFPO-DA (EPA Method 537 Mod)12 9.8 B 17 30 B
PFMOAA <5 UJ 14 <5 UJ 13
PFO2HxA 7.5 6.9 12 7.7
PFO3OA <2 <2 2 <2
PFO4DA <2 <2 <2 <2
PFO5DA <2 <2 <2 <2
PMPA 27 23 B 37 53 B
PEPA <20 <20 <20 22
PFESA-BP1 <2 <2 <2 <2
PFESA-BP2 <2 <2 <2 <2
Byproduct 4 8.5 J 5 J 15 J 6.5 J
Byproduct 5 2.3 J 7.1 J 2.9 J 6.4 J
Byproduct 6 <2 <2 <2 <2
NVHOS 5.8 <2 6.6 <2
EVE Acid <2 <2 <2 <2
Hydro-EVE Acid <2 <2 <2 <2
R-EVE <2 <2 6 J 4.2 J
PES <2 <2 <2 <2
PFECA B <2 <2 <2 <2
PFECA-G <2 <2 <2 <2
Total Table 3+ Compounds*63 66 99 140
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate <2 <2 <2 <2
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<20 <20 <20 <20
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<20 <20 <20 <20
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <2 <2 <2 <2
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <4 <4 <4 <4
6:2 Fluorotelomer sulfonate <20 <20 <20 <20
ADONA <2.1 <2.1 <2.1 <2.1
NaDONA <2.1 <2.1 <2.1 <2.1
N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20
N-ethylperfluoro-1-octanesulfonamide <2 <2 <2 <2
N-methyl perfluoro-1-octanesulfonamide <2 <2 <2 <2
N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20
Perfluorobutane Sulfonic Acid 6.5 3.1 5.9 3.1
Perfluorobutanoic Acid 19 3.6 18 <2
Perfluorodecane Sulfonic Acid <2 <2 <2 <2
Perfluorodecanoic Acid <2 <2 <2 <2
Perfluorododecane sulfonic acid (PFDoS)<2 <2 <2 <2
Perfluorododecanoic Acid <2 <2 <2 <2
Perfluoroheptane sulfonic acid (PFHpS)<2 <2 <2 <2
Perfluoroheptanoic Acid 32 8.8 36 11
Perfluorohexadecanoic acid (PFHxDA)<2 <2 <2 <2
Perfluorohexane Sulfonic Acid 8.7 3 8.9 3.6
Perfluorohexanoic Acid 51 15 48 16
Perfluorononanesulfonic acid <2 <2 <2 <2
Perfluorononanoic Acid <2 <2 <2 <2
Perfluorooctadecanoic acid <2 <2 <2 <2
Perfluorooctane Sulfonamide <2 <2 <2 <2
Perfluoropentane sulfonic acid (PFPeS)<2 <2 <2 <2
Perfluoropentanoic Acid 48 9.7 45 11
Perfluorotetradecanoic Acid <2 <2 <2 <2
Perfluorotridecanoic Acid <2 <2 <2 <2
Perfluoroundecanoic Acid <2 <2 <2 <2
PFOA 10 5.4 12 6.1
PFOS 14 6.8 18 9.4
F-53B Major (9Cl-PF3ONS)<2 <2 <2 <2
F-53B Minor (11Cl-PF3OUdS)<2 <2 <2 <2
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.
16A
TR0795 Page 1 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC6B-100919 STW-LOC-6B-122019 STW-LOC7A-101019 STW-LOC-7A-122019
10/9/2019 12/20/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
17 9 B 16 9.3 B
<5 UJ 13 <5 UJ 13
11 6.4 10 6.7
2.1 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
30 19 B 28 21 B
<20 <20 <20 <20
<2 <2 <2 <2
<2 <2 <2 <2
11 J <2 11 J <2
2.8 J 6.4 J 3.2 J 8.2 J
<2 <2 <2 <2
6.5 <2 6.6 <2
<2 <2 <2 <2
<2 <2 <2 <2
4.7 J <2 4.8 J <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
85 54 80 58
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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
6.9 3.3 4.9 3
18 <2 18 4
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
35 8.2 33 8.6
<2 <2 UJ <2 <2
8.5 3.4 8.8 3.3
48 16 49 16
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 UJ <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
46 10 46 11
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
11 4.9 11 5.5
16 7.2 15 8.1
<2 <2 <2 <2
<2 <2 <2 <2
6B 7A
TR0795 Page 2 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC7B-101019 STW-LOC-7B-122019 STW-LOC8-101019 STW-LOC-8-122319
10/10/2019 12/20/2019 10/10/2019 12/23/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
23 29 B 120 500
24 J 25 240 J 220
17 9.2 95 J 73
5.7 2.1 48 16
4.3 <2 48 13 J
9.8 <2 85 J 14
35 29 B 38 130
<20 <20 28 91
<2 <2 9.9 12
71 3.1 550 61
22 J 6.8 J 37 J 26 J
140 J 71 J 600 J 620 J
<2 <2 12 <2
13 2.1 54 16
<2 <2 <2 <2
<2 <2 9.2 2.8
5.5 J <2 7 J 7.8
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
370 180 2,000 1,800
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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
6.6 3 5.2 3.1
19 4.2 26 12
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
33 8.6 26 11
<2 <2 <2 <2 UJ
8.7 3.3 4.5 <2
49 16 40 17
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2 UJ
<2 <2 <2 <2
<2 <2 <2 <2
46 11 43 21
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
11 7.1 9.1 28
14 7.6 2.2 <2
<2 <2 <2 <2
<2 <2 <2 <2
87B
TR0795 Page 3 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC9-101019 STW-LOC-9-122019 STW-LOC10-101019 STW-LOC-10-122019
10/10/2019 12/20/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
2,400 28 B 15,000 230
38 J 14 1,700 34
500 14 7,400 32
160 5 3,300 12
45 3.8 J 2,100 11 J
26 3.2 1,900 9.2
110 27 B 1,300 58
27 <20 590 23
170 6.6 23,000 40
50 <2 3,000 8.8
300 J 8.3 J 1,200 35 J
1,500 49 J 3,400 100 J
7.6 <2 78 <2
63 <2 270 7
110 3.7 680 8.5
34 <2 930 4
91 J 3.5 J 570 38 J
<2 <2 <9.2 <2
<2 <2 <12 <2
<2 <2 <8.2 <2
5,600 170 66,000 650
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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
6.3 3.1 <2 3.1
54 4.5 170 5.4
<2 <2 <2 <2
<2 <2 14 <2
<2 <2 <2 <2
<2 <2 2.4 <2
<2 <2 <2 <2
38 9.7 33 8.8
<2 <2 <2 <2
9.2 3.3 <2 3.3
55 16 41 15
<2 <2 <2 <2
3 <2 UJ 22 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
94 12 200 12
<2 <2 <2 <2
<2 <2 UJ <2 <2
<2 <2 UJ 14 <2
12 6.7 26 6.6
16 7.8 9 8.3
<2 <2 2.1 <2
<2 <2 <2 <2
910
TR0795 Page 4 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
-- STW-LOC-12-122019 STW-LOC14-101019 STW-LOC-14-122019
-- 12/20/2019 10/10/2019 12/20/2019
-- TestAmerica TestAmerica TestAmerica
------
-- 15 B 15 21 B
-- 20 <5 UJ 19
-- 14 6.7 13
-- 2.4 <2 <2
--<2 <2 <2
-- 3 <2 UJ <2
-- 50 B 23 68
--<20 <20 25
--<2 <2 <2
--<2 <2 <2
--<2 2.4 <2
-- 15 J <2 9.3 J
--<2 <2 <2
-- 2.4 6 <2
--<2 <2 <2
--<2 <2 <2
--<2 <2 <2
--<2 <2 <2
--<2 <2 <2
-- <2 <2 <2
-- 120 53 160
-- <2 <2 <2
-- <20 <20 <20
-- <20 <20 <20
-- <2 <2 <2
-- <4 <4 <4
-- <20 <20 39 J
-- <2.1 <2.1 <2.1
-- <2.1 <2.1 <2.1
-- <20 <20 <20
-- <2 <2 <2
-- <2 <2 <2
-- <20 <20 <20
--4.5 9.6 4.5
--6.8 27 6.8
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
--11 50 11
-- <2 <2 <2
--5.5 13 5.1
--19 72 20
-- <2 <2 <2
-- <2 2.2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 2.1 <2
--14 67 14
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
--6.9 15 7.5
--15 20 11
-- <2 <2 <2
-- <2 <2 <2
12 14
TR0795 Page 5 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC15-101019 STW-LOC-15-122019 STW-LOC18-100919 STW-LOC-18-122019
10/10/2019 12/20/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
140 35 16 12 B
<5 UJ 15 <5 UJ <5
32 13 5.5 J 3.9 J
16 5 <2 <2
16 3.9 <2 <2
15 3.1 <2 UJ <2
45 31 B <10 UJ 19 B
<20 <20 <20 <20
150 24 <2 <2
28 2.2 <2 <2
250 J 11 J 13 J 7.7 J
1,700 58 J <2 6.2 J
3.6 <2 <2 <2
35 2 <2 UJ <2 UJ
62 4.3 <2 <2
21 <2 <2 <2
71 J 4.7 J 2.4 J 5.2 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
2,600 210 37 54
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <49
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<2 <2 <2 UJ <2
<2 <2 <2 <2
<20 <20 <20 <20
6.5 3 <2 <2
22 <2 17 J <3.3
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
37 8.7 22 2.8
<2 <2 <2 UJ <8.3
8.9 3.4 5.4 <2
51 14 29 3.2
<2 <2 <2 <2
2.4 <2 <2 <2
<2 <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
68 10 27 J 3.4
<2 <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
11 4.8 6.7 3.3
16 8.2 10 2.8
<2 <2 <2 <2
<2 <2 <2 <2
15 18
TR0795 Page 6 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC19A-100919 STW-LOC-19A-122019 STW-LOC19B-100919 STW-LOC-19B-122019
10/9/2019 12/20/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
7.3 380 5.9 22 B
<5 16 <5 5.6
7.1 35 3.9 4.3
<2 UJ 9.7 <2 <2
<2 UJ 4 J <2 UJ <2
<2 UJ <2 <2 UJ <2
19 340 12 35 B
<20 180 <20 <20
<2 <2 <2 <2
<2 <2 2.2 <2
<2 UJ <2 <2 UJ <2
<2 UJ 11 J <2 2.2
<2 <2 <2 <2
2.1 2.2 3.2 <2
<2 <2 <2 <2
<2 2.4 <2 <2
<2 UJ 4.1 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ
36 980 27 69
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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 2.3 <2
6 3.2 7.2 2.2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
9.5 3.5 12 2.7
<2 UJ <2 6.2 J <2 UJ
<2 <2 2.3 <2
15 7.8 18 5.2
<2 <2 <2 <2
<2 3.1 B <2 <2
<2 UJ <2 <2 UJ <2 UJ
<2 <2 <2 <2
<2 <2 <2 <2
15 6.3 18 3.9
<2 UJ <2 <2 <2
<2 46 B <2 <2
<2 15 B <2 <2
3.3 14 4.4 <2
2.5 <2 3.4 2.4
<2 <2 <2 <2
<2 <2 <2 <2
19A 19B
TR0795 Page 7 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC20-101019 STW-LOC20-100919-D STW-LOC-20-122019 STW-LOC-20-122019-D
10/10/2019 10/10/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- Field Duplicate
30 J 34 42 47
24 J 21 J 22 20
18 19 11 11
5.7 5.7 2.7 2.8
4.3 4.6 <2 <2
7.6 J 7.3 J 2.2 <2
34 27 33 B 32 B
<20 <20 <20 <20
17 16 5.3 5.5
46 41 2.2 2.1
31 J 18 J 7.7 J 6.3 J
190 J 160 J 49 J 44 J
<2 <2 <2 <2
13 J 8.7 J 2.4 2.2
3.8 3.3 <2 <2
<2 <2 <2 <2
6.9 J 5.4 J 4 J 3.3 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
430 370 180 180
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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
6.3 6.2 3 3
19 24 5.4 4.5
<2 <2 <2 <2
<2 UJ 19 J <2 <2
<2 <2 <2 <2
<2 3 <2 <2
<2 <2 <2 <2
34 J 100 J 8.8 8.8
<2 <2 <2 <2
8.6 8.7 3.2 3.4
48 J 92 J 15 15
<2 <2 <2 <2
<2 UJ 40 J <2 <2
<2 <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
47 65 11 11
<2 <2 <2 <2
<2 <2 <2 <2
<2 8.3 <2 <2
11 J 50 J 5.7 5.9
15 14 7.9 8
<2 <2 <2 <2
<2 <2 <2 <2
20
October 2019 December 2019
TR0795 Page 8 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC21A-100919 STW-LOC-21A-122019
10/9/2019 12/20/2019
TestAmerica TestAmerica
----
97 43
11 J 21
28 16
12 2.6
9.6 <2
6.6 2.5
71 54 B
25 23
7.7 2.7
4.3 <2
32 J 7.3 J
17 J 12 J
<2 <2
8.4 2.1
7.4 <2
3.9 <2
19 J 5 J
<2 <2
<2 <2
<2 <2
360 190
<2 <2
<20 <20
<20 <20
<2 <2
<4 <4
<20 <20
<2.1 <2.1
<2.1 <2.1
<20 <20
<2 <2
<2 <2
<20 <20
6.8 2.4
17 5
<2 <2
<2 <2
<2 <2
<2 <2
<2 <2
31 6.2
<2 <2
9.8 3.3
41 10
<2 <2
2 <2
<2 <2
<2 <2
<2 <2
40 8.8
<2 <2
<2 <2
<2 <2
12 4
23 9.4
<2 <2
<2 <2
21A
TR0795 Page 9 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
STW-LOC22-100919 STW-LOC22-100919-D STW-LOC-22-122019
10/9/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica
-- Field Duplicate --
27 27 <14
37 J 56 J 25 J
21 23 12 J
7.2 8.1 5
6.7 8.5 4.1 J
7.1 J 14 J 2.3 J
40 37 <10 UJ
<20 <20 <20 UJ
70 73 25 J
63 J 130 J 25 J
18 J 26 J 28 J
210 J 300 J 490 J
<2 2.3 <2
12 15 2.3 J
2.1 2.6 <2
2.5 2.8 <2
5 J 4.5 J 3 J
<2 <2 <2
<2 <2 <2
<2 <2 <2 UJ
530 730 620
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
3.7 3.6 <2
16 J 18 J 130 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
24 24 4.1 J
<2 <2 <2 UJ
6.1 6.2 <2
34 33 <2 UJ
<2 <2 <2
<2 2 <2
<2 <2 <2 UJ
<2 <2 <2
<2 <2 <2
32 32 <2 UJ
<2 <2 <2
<2 <2 <2
<2 <2 <2
8.4 8.4 4.5
12 11 3.4 J
<2 <2 <2
<2 <2 <2
22
October 2019
TR0795 Page 10 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
STW-LOC23A-100919 STW-LOC-23A-122019 STW-LOC23B-100919 STW-LOC-23B-122019
10/9/2019 12/20/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
--------
110 2,200 17 240
890 1,100 200 13
200 240 56 7.3
70 80 19 <2
44 37 10 <2
31 20 8.5 J <2
<57 <57 <28 24 B
20 33 <20 <20
11,000 6,900 2,700 25
570 330 120 <2
340 260 100 J <2
5,900 J 3,500 1,700 J 26 J
2.9 <2 <2 <2
61 39 20 <2
88 83 20 <2
71 63 14 <2
34 26 J 10 J <2
<4.6 <4.6 <2.3 <2
<6 <6 <3 <2
<4.1 <4.1 <2 <2
19,000 15,000 5,000 340
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
3.3 2.8 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<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
6.7 2.3 5.4 2.7
18 180 18 4
<2 <2 <2 <2
4 2.4 <2 <2
<2 <2 <2 <2
4 <2 <2 <2
<2 <2 <2 <2
31 15 30 6.6
10 8.1 <2 <2
12 3.8 6.8 3.2
37 17 43 12
<2 <2 <2 <2
3.4 2.1 B <2 <2
6.8 4.9 <2 <2
2.1 <2 <2 <2
<2 <2 <2 <2
43 18 40 8.2
8 6.4 <2 <2
6.9 5.2 B <2 <2
3.2 <2 <2 <2
52 680 13 26
27 11 14 7.9
<2 <2 <2 <2
<2 <2 <2 <2
23A 23B
TR0795 Page 11 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC-24A-122019
-- 12/20/2019
-- TestAmerica
--
-- 18 B
-- 12
-- 6.1
--<2
--<2
--<2
-- 41 B
-- 22
--<2
--<2
--<2
-- 12 J
--<2
--<2
--<2
--<2
--<2
--<2
--<2
-- <2
-- 110
-- <2
-- <20
-- <20
-- <2
-- <4
-- <20
-- <2.1
-- <2.1
-- <20
-- <2
-- <2
-- <20
--3.1
-- <2
-- <2
-- <2
-- <2
-- <2
-- <2
--8.6
-- <2
--4.4
--15
-- <2
--2.8 B
-- <2
-- <2
-- <2
--10
-- <2
--16 B
--3.1 B
--7.6
--17
-- <2
-- <2
24A
TR0795 Page 12 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC24B-100919 STW-LOC-24B-122019 STW-LOC-24B-122019-D
10/9/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica
---- Field Duplicate
8.5 11 B 8.7 B
<5 UJ 12 13
7.1 6.5 5.1
2 <2 <2
<2 <2 <2
<2 <2 <2
18 27 B 29 B
<20 <20 <20
<2 <2 <2
<2 <2 <2
6.9 J <2 3.7 J
4.4 J 5.2 J 6.2 J
<2 <2 <2
7 <2 <2
9.6 <2 <2
<2 <2 <2
<2 <2 2.6 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
64 62 68
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
6.2 2.8 2.7
18 3.9 J 3.9
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
34 6.8 J 6.8
<2 <2 <2
8.5 3.1 3.2
49 13 J 12
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
46 8.3 J 9.9
<2 <2 <2
<2 <2 <2
<2 <2 <2
11 4.6 J 4.6
15 7.5 7.9
<2 <2 <2
<2 <2 <2
24B
December 2019
TR0795 Page 13 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 December 2019
-- STW-LOC-24C-122019 STW-TBLK-100919 STW-TB-122619
-- 12/20/2019 10/9/2019 12/26/2019
-- TestAmerica TestAmerica TestAmerica
--Trip Blank Trip Blank
-- 270 <4 6.7
--<21 <5 <5
-- 46 <2 <2
-- 20 <2 <2
-- 13 <2 <2
-- 12 <2 <2
-- 61 B <10 11
-- 31 <20 <20
-- 490 <2 <2
-- 130 <2 <2
-- 470 <2 <2
-- 1,300 <2 <2
-- 11 <2 <2
-- 260 <2 <2
-- 930 <2 <2
-- 290 <2 <2
-- 170 <2 <2
--<4.6 <2 <2
--<6 <2 <2
-- <4.1 <2 <2
-- 4,500 ND 18
-- <2 <2 <2
-- <20 <20 <20
-- <20 <20 <20
-- <2 <2 <2
-- <4 <4 <4
-- <20 <20 <20
-- <2.1 <2.1 <2.1
-- <2.1 <2.1 <2.1
-- <20 <20 <20
-- <2 <2 <2
-- <2 <2 <2
-- <20 <20 <20
--2.9 <2 <2
--5.3 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
--7.1 <2 <2
-- <2 <2 <2
--3.2 <2 <2
--13 <2 <2
-- <2 <2 <2
-- <2 <2 2.9
-- <2 <2 <2
-- <2 <2 <2
-- <2 <2 <2
--11 <2 <2
-- <2 <2 <2
-- <2 <2 27
-- <2 <2 5
--5.3 <2 <2
--8.1 <2 <2
-- <2 <2 <2
-- <2 <2 <2
24C TBLK
TR0795 Page 14 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-01-100919 STW-EB-02-100919 STW-EB-03-100919 STW-EQBLK-DR-122019 STW-EQBLK-IO-122019
10/9/2019 10/9/2019 10/9/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<4 <4 <4 <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 10 10
<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
<2.1 <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
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
EQBLK
October 2019 December 2019
TR0795 Page 15 of 16 January 2020
TABLE 4
ANALYTICAL RESULTS - 2019 QUARTER 4
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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-FB-100919 STW-FBLK-122019
10/9/2019 12/20/2019
TestAmerica TestAmerica
Field Blank Field Blank
<4 <4 UJ
<5 <5
<2 <2
<2 <2
<2 <2
<2 <2
<10 10
<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
ND 10
<2 <2
<20 <20
<20 <20
<2 <2
<4 <4
<20 <20
<2.1 <2.1
<2.1 <2.1
<20 <20
<2 <2
<2 <2
<20 <20
<2 <2
<2 <2 UJ
<2 <2
<2 <2
<2 <2
<2 <2
<2 <2
<2 <2 UJ
<2 <2
<2 <2
<2 <2 UJ
<2 <2
<2 <2
<2 <2
<2 <2
<2 <2
<2 <2 UJ
<2 <2
<2 <2
<2 <2
<2 <2 UJ
<2 <2
<2 <2
<2 <2
FBLK
TR0795 Page 16 of 16 January 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
Field Sample ID DSTW-LOC1-042419 STW-LOC1-062819 STW-LOC1-082219 STW-LOC1-101019 STW-LOC-1-122019
Date Sampled 4/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019
Analytical Laboratory 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
PFMOAA 7 J <5 25 <5 UJ 14
PFO2HxA 12 J 14 21 7.5 6.9
PFO3OA <2 UJ 2.5 3.3 <2 <2
PFO4DA <2 UJ <2 <2 <2 <2
PFO5DA <2 UJ <2 <2 <2 <2
PMPA 21 J 23 37 27 23 B
PEPA <20 UJ <20 <20 <20 <20
PFESA-BP1 <2 UJ <2 <2 <2 <2
PFESA-BP2 <2 UJ <2 <2 <2 <2
Byproduct 4 11 J 2.8 J 15 J 8.5 J 5 J
Byproduct 5 3.2 J <2 11 J 2.3 J 7.1 J
Byproduct 6 <2 UJ <2 <2 <2 <2
NVHOS <2 UJ <2 5.1 5.8 <2
EVE Acid <2 UJ <2 <2 <2 <2
Hydro-EVE Acid <2 UJ <2 <2 <2 <2
R-EVE 6.4 J <2 4 J <2 <2
PES <2 UJ <2 <2 <2 <2
PFECA B <2 UJ <2 <2 <2 <2
PFECA-G <2 UJ <2 <2 <2 <2
Total Table 3+ Compounds* 75 60 150 63 66
Other PFAS (ng/L)
10:2 Fluorotelomer sulfonate <2.0 <2 <2 <2 <2
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) <20 <20 <20 <20 <20
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) <20 <20 <20 <20 <20
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <60 <2 <2 <2 <2
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <110 <2 <4 <4 <4
6:2 Fluorotelomer sulfonate <20 <20 <20 <20 <20
ADONA <2.1 <2.1 <2.1 <2.1 <2.1
NaDONA <2.1 <2.1 <2.1 <2.1 <2.1
N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 <20
N-ethylperfluoro-1-octanesulfonamide <37 2.7 <2 <2 <2
N-methyl perfluoro-1-octanesulfonamide <35 <2 <2 <2 <2
N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 <20
Perfluorobutane Sulfonic Acid 2.3 3.7 4 6.5 3.1
Perfluorobutanoic Acid 7.1 8.3 8.5 19 3.6
Perfluorodecane Sulfonic Acid <2.0 <2 <2 <2 <2
Perfluorodecanoic Acid <2.0 <2 <2 <2 <2
Perfluorododecane sulfonic acid (PFDoS) <2.0 <2 <2 <2 <2
Perfluorododecanoic Acid <2.0 <2 <2 <2 <2
Perfluoroheptane sulfonic acid (PFHpS) <2.0 <2 <2 <2 <2
Perfluoroheptanoic Acid 7142032 8.8
Perfluorohexadecanoic acid (PFHxDA) <2.0 <2 <2 <2 <2
Perfluorohexane Sulfonic Acid 3.3 5 5.6 8.7 3
Perfluorohexanoic Acid 9.2 21 26 51 15
Perfluorononanesulfonic acid <2.0 <2 <2 <2 <2
Perfluorononanoic Acid <2.0 <2 <2 <2 <2
Perfluorooctadecanoic acid <2.0 <2 <2 <2 <2
Perfluorooctane Sulfonamide <2.0 <2 <2 <2 <2
Perfluoropentane sulfonic acid (PFPeS) <2.0 <2 <2 <2 <2
Perfluoropentanoic Acid 7172648 9.7
Perfluorotetradecanoic Acid <2.0 <2 <2 <2 <2
Perfluorotridecanoic Acid <2.0 <2 <2 <2 <2
Perfluoroundecanoic Acid <2.0 <2 <2 <2 <2
PFOA 8.1 8.5 8.7 10 5.4
PFOS 12 11 12 14 6.8
F-53B Major (9Cl-PF3ONS)-- --<2 <2 <2
F-53B Minor (11Cl-PF3OUdS) -- -- <2 <2 <2
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.
1
TR0795 Page 1 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC6A-042419 STW-LOC-6A-062719 STW-LOC6A-082119 STW-LOC6A-100919 STW-LOC-6A-122019
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
13 66 19 17 30 B
<5 UJ <5 UJ <5 <5 UJ 13
11 J 11 J 12
12 7.7
<2 UJ <2 UJ <2 2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
24 J 23 J 27 37 53 B
<20 UJ <20 UJ <20 <20 22
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
8.1 J 7.9 J <2 15 J 6.5 J
4.3 J <2 UJ 5.1 J 2.9 J 6.4 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ 5.3 6.6 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
2.6 J 4 J 3.9 6 J 4.2 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
63 110 72 99 140
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <4 <4 <4
<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 <2 <2 <2
<35 UJ <35 <2 <2 <2
<20 <20 <20 <20 <20
2.4 3.6 4.3 5.9 3.1
7.6 11 8.7 18 <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
<2.0 <2 <2 <2 <2
7.4 13 21 36 11
<2.0 <2 <2 <2 <2
3.7 5.3 6.5 8.9 3.6
9.2 22 27 48 16
<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
7.4 18 27 45 11
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.6 8.3 11 12 6.1
14 14 18 18 9.4
-- --<2 <2 <2
-- -- <2 <2 <2
6A
TR0795 Page 2 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC6B-042419 STW-LOC-6B-062719 STW-LOC6B-082119 STW-LOC6B-100919 STW-LOC-6B-122019
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
41 24 17 17 9 B
<5 UJ <5 UJ <5 <5 UJ 13
11 J 13 J 11
11 6.4
<2 UJ <2 UJ <2 2.1 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
23 J 23 J 37 30 19 B
<20 UJ <20 UJ <20 <20 <20
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
11 J 13 J 12 J 11 J <2
3.6 J <2 UJ 2.5 J 2.8 J 6.4 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ 4.4 6.5 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
6.6 J 5.8 J 3.2 J 4.7 J <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
96 79 87 85 54
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <4 <4 <4
<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 <2 <2 <2
<35 UJ <35 <2 <2 <2
<20 <20 <20 <20 <20
2.3 3.6 4.3 6.9 3.3
7.1 9.2 8.4 18 <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
<2.0 <2 <2 <2 <2
7.4 13 20 35 8.2
<2.0 <2 <2 <2 <2 UJ
3.6 5.6 5.8 8.5 3.4
9.3 20 27 48 16
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
7.2 17 26 46 10
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
9.3 9.6 8.8 11 4.9
14 16 15 16 7.2
-- --<2 <2 <2
-- -- <2 <2 <2
6B
TR0795 Page 3 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC7A-042419 STW-LOC7A-062819 STW-LOC7A-082219 STW-LOC7A-101019 STW-LOC-7A-122019
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
14 22 13 16 9.3 B
8 J <5 6.7 <5 UJ 13
12 J 14 9.4
10 6.7
<2 UJ 2.2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
24 J 22 23 28 21 B
<20 UJ <20 <20 <20 <20
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
5.3 J 3.4 J 11 J 11 J <2
4.2 J <2 3.1 J 3.2 J 8.2 J
<2 UJ <2 <2 <2 <2
<2 UJ <2 4.5 6.6 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
3.9 J <2 <2 4.8 J <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
71 64 71 80 58
<2.0 <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
<2.1 <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
2.3 3.6 4.1 4.9 3
7 8.8 8.8 18 4
<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
7.4 14 20 33 8.6
<2.0 <2 <2 <2 <2
3.4 5.2 6.1 8.8 3.3
8.3 20 26 49 16
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
2 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
6.5 19 26 46 11
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.8 9.4 8.9 11 5.5
14 15 15 15 8.1
-- --<2 <2 <2
-- -- <2 <2 <2
7A
TR0795 Page 4 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC7B-042419 STW-LOC7B-062719 STW-LOC7B-062719-D
04/24/2019 06/27/2019 06/27/2019
TestAmerica TestAmerica TestAmerica
-- -- Field Duplicate
21 18 18
51 J 69 65
26 J 25 25
6 J 10 10
2.5 J 9.7 10
<2 UJ 24 26
23 J 21 19
<20 UJ <20 <20
<2 UJ <2 2
7 J 120 130
19 J 73 J 71 J
53 J 490 J 470 J
<2 UJ 2.2 2.3
2.1 J 9.2 9.8
<2 UJ <2 <2
<2 UJ <2 <2
4 J 3.7 J <2
<2 UJ <2 <2
<2 UJ <2 <2
<2 UJ <2 <2
210 870 860
<2.0 <2 <2
<20 <20 <20
<20 <20 <20
900 J <2 <2
<110 <2 <2
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<37 UJ <2 <2
<35 <2 <2
<20 <20 <20
2.3 3.4 3.7
5.2 8.9 8.7
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
71415
<2.0 <2 <2
3.5 5.4 5.5
8.2 21 21
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
7.2 18 17
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
7.9 8.9 9.3
14 15 16
-- --
-- --
7B
June 2019
TR0795 Page 5 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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.
August 2019 October 2019 December 2019
STW-LOC7B-082219 STW-LOC7B-101019 STW-LOC-7B-122019
8/22/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica
-- -- --
42 23 29 B
1,100 24 J 25
300 17 9.2
100 5.7 2.1
64 4.3 <2
35 9.8 <2
45 35 29 B
<20 <20 <20
6.9 <2 <2
180 71 3.1
110 J 22 J 6.8 J
1,100 J 140 J 71 J
4.1 <2 <2
48 13 2.1
<2 <2 <2
8.7 <2 <2
11 J 5.5 J <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
3,200 370 180
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
4 6.6 3
10 19 4.2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
20 33 8.6
<2 <2 <2
5.7 8.7 3.3
26 49 16
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
27 46 11
<2 <2 <2
<2 <2 <2
<2 <2 <2
9.6 11 7.1
14 14 7.6
<2 <2 <2
<2 <2 <2
7B
TR0795 Page 6 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC8-042419 STW-LOC8-062819 STW-LOC8-082219 STW-LOC8-101019 STW-LOC-8-122319
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/23/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
120 100 460 120 500
1,200 J <21 20,000 240 J 220
480 360 4,900
95 J 73
150 200 1,700 48 16
<79 210 1,000 48 13 J
51 520 480 85 J 14
<570 <57 160 38 130
<47 34 72 28 91
<27 37 58 9.9 12
240 2,600 1,700 550 61
<160 760 340 37 J 26 J
690 3,500 4,600 600 J 620 J
<15 49 43 12 <2
<54 190 530 54 16
<24 <2.4 <4.9 <2 <2
<28 18 140 9.2 2.8
<70 29 J 39 J 7 J 7.8
<46 <4.6 <9.2 <2 <2
<60 <6 <12 <2 <2
<41 <4.1 <8.2 <2 <2
2,900 8,600 36,000 2,000 1,800
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <6 <2 <2 <2
<110 <11 <4 <4 <4
<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 <3.7 <2 <2 <2
<35 <3.5 <2 <2 <2
<20 <20 <20 <20 <20
2.4 4.3 4.5 5.2 3.1
5.7 18 24 26 12
<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
3.7 16 22 26 11
<2.0 <2 <2 <2 <2 UJ
3.1 4.7 4.6 4.5 <2
4.9 25 31 40 17
<2.0 <2 <2 <2 <2
<2.0 4.8 3.2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
4.2 22 39 43 21
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.2 12 16 9.1 28
<2.0 2.9 2.7 2.2 <2
-- --<2 <2 <2
-- -- <2 <2 <2
8
TR0795 Page 7 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC9-042419 STW-LOC9-062819 STW-LOC9-082219 STW-LOC9-101019 STW-LOC-9-122019
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
29 77 55 2,400 28 B
8.8 J <21 25 J 38 J 14
17 J 20 28
500 14
4.5 J 5.9 5.9 160 5
3.6 J <7.9 2.3 45 3.8 J
<2 UJ <3.4 <2 26 3.2
25 J <57 48 110 27 B
<20 UJ <20 <20 27 <20
28 J 2,300 86 170 6.6
3.4 J 120 8 50 <2
50 J 110 81 J 300 J 8.3 J
83 J 190 160 J 1,500 49 J
<2 UJ <2 <2 7.6 <2
2.8 J 61 11 63 <2
11 J 57 19 110 3.7
<2 UJ 6.7 2.1 34 <2
7.5 J 53 17 J 91 J 3.5 J
<2 UJ <4.6 <2 <2 <2
2.8 J <6 <2 <2 <2
<2 UJ <4.1 <2 <2 <2
280 3,000 550 5,600 170
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <6 <2 <2 <2
<110 <11 <4 <4 <4
<20 <20 41 <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 <3.7 <2 <2 <2
<35 <3.5 <2 <2 <2
<20 <20 <20 <20 <20
2.2 3.7 4.1 6.3 3.1
6.9 9.2 9.1 54 4.5
<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
7.5 13 19 38 9.7
<2.0 <2 <2 <2 <2
3.3 5.5 6.1 9.2 3.3
9 21265516
<2.0 <2 <2 <2 <2
<2.0 2 <2 3 <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.6 19 27 94 12
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2 UJ
8.9 9.3 8.9 12 6.7
14 15 15 16 7.8
-- --<2 <2 <2
-- -- <2 <2 <2
9
TR0795 Page 8 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC10-042419 -- STW-LOC10-082219 STW-LOC10-101019 STW-LOC-10-122019
4/24/2019 -- 8/22/2019 10/10/2019 12/20/2019
TestAmerica -- TestAmerica TestAmerica TestAmerica
-- -- -- -- --
320 -- 1,700 15,000 230
58 J -- 490 J 1,700 34
88 J -- 250
7,400 32
24 J -- 88 3,300 12
20 J -- 87 2,100 11 J
9.1 J -- 42 1,900 9.2
260 J -- 180 1,300 58
97 J -- 63 590 23
78 J -- 380 23,000 40
19 J -- 510 3,000 8.8
190 J -- 870 1,200 35 J
280 J -- 730 J 3,400 100 J
<2 UJ -- 23 78 <2
14 J -- 460 270 7
8.5 J -- 62 680 8.5
8.5 J -- 72 930 4
150 J -- 280 J 570 38 J
<2 UJ --<2 <9.2 <2
<2 UJ --<2 <12 <2
<2 UJ -- <2 <8.2 <2
1,600 -- 6,300 66,000 650
<2.0 -- <2 <2 <2
<20 -- <20 <20 <20
<20 -- <20 <20 <20
<60 -- <2 <2 <2
<110 -- <4 <4 <4
<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 -- <2 <2 <2
<35 -- <2 <2 <2
<20 -- <20 <20 <20
2.1 --4.4 <2 3.1
10 --23 170 5.4
<2.0 -- <2 <2 <2
<2.0 -- <2 14 <2
<2.0 -- <2 <2 <2
<2.0 -- <2 2.4 <2
<2.0 -- <2 <2 <2
8.4 --23 33 8.8
<2.0 -- <2 <2 <2
3.5 --6 <2 3.3
9.3 --29 41 15
<2.0 -- <2 <2 <2
<2.0 --2.5 22 <2
<2.0 -- <2 <2 <2
<2.0 -- <2 <2 <2
<2.0 -- <2 <2 <2
17 --47 200 12
<2.0 -- <2 <2 <2
<2.0 -- <2 <2 <2
<2.0 -- <2 14 <2
10 --48 26 6.6
12 -- 15 9 8.3
---- <2 2.1 <2
-- -- <2 <2 <2
10
TR0795 Page 9 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
-- -- 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
-- -- <20 -- <20
-- -- <20 -- <20
-- -- <2 -- <2
-- -- <4 -- <4
-- -- <20 -- <20
-- -- <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
-- -- <2 -- <2
-- -- <2 -- <2
12
TR0795 Page 10 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
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
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <2 <2 <2 <2
<110 <2 <4 <4 <4
<20 <20 <20 <20 39 J
<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
4.7 13 10 27 6.8
<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
3.1 24 21 50 11
<2.0 <2 <2 <2 <2
3 7.9 6.1 13 5.1
4.4 36 27 72 20
<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
3.8 28 27 67 14
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
5.8 14 10 15 7.5
11 22 15 20 11
-- -- <2 <2 <2
-- -- <2 <2 <2
14
TR0795 Page 11 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC15-042419 STW-LOC15-062819 STW-LOC15-082219 STW-LOC15-101019 STW-LOC-15-122019
04/24/2019 06/28/2019 8/22/2019 10/10/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
34 45 43 140 35
8.4 J 12 12 <5 UJ 15
17 J 16 22
32 13
4 J 3.2 5.3 16 5
3.2 J <2 2.2 16 3.9
<2 UJ <2 <2 15 3.1
35 J 25 38 45 31 B
<20 UJ <20 <20 <20 <20
22 J 880 92 150 24
4.3 J 41 8.2 28 2.2
42 J 80 J 63 J 250 J 11 J
71 J 250 J 140 J 1,700 58 J
<2 UJ <2 <2 3.6 <2
3 J 23 12 35 2
9.5 J 22 22 62 4.3
<2 UJ 3.6 2.1 21 <2
10 J 33 J 15 J 71 J 4.7 J
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
260 1,400 480 2,600 210
<2.0 <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
<2.1 <2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20 <20
<37 3.1 <2 <2 <2
<35 <2 <2 <2 <2
<20 <20 <20 <20 <20
2.3 3.7 4.1 6.5 3
6.5 9.4 9.2 22 <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
<2.0 <2 <2 <2 <2
7.5 14 20 37 8.7
<2.0 <2 <2 <2 <2
3.5 5.7 5.9 8.9 3.4
7.9 22 26 51 14
<2.0 <2 <2 <2 <2
<2.0 <2 <2 2.4 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.2 18 28 68 10
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
8.5 9.5 9.4 11 4.8
14 15 16 16 8.2
-- -- <2 <2 <2
-- -- <2 <2 <2
15
TR0795 Page 12 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
-- <20 <20 <20
-- <20 <20 <20
-- <60 <2 <2
-- <110 <4 UJ <4
-- <20 <20 <20
-- <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
-- -- <2 <2
-- -- <2 <2
August 2019
18
TR0795 Page 13 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC18-082119-3 STW-LOC18-082119-4 STW-LOC18-100919 STW-LOC-18-122019
8/21/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- --
7.6 120 16 12 B
<5 <5 <5 UJ <5
3.8 20
5.5 J 3.9 J
<2 5.1 <2 <2
<2 3.2 <2 <2
<2 <2 <2 UJ <2
21 64 J <10 UJ 19 B
<20 26 <20 <20
<2 5 <2 <2
<2 6.4 <2 <2
2.3 J 53 J 13 J 7.7 J
<2 22 J <2 6.2 J
<2 <2 <2 <2
4.4 6.4 <2 UJ <2 UJ
<2 <2 <2 <2
<2 2.3 <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
42 360 37 54
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <49
<2 <2 <2 <2
<4 <4 UJ <4 <4
<20 <20 <20 <20
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<2 <2 <2 UJ <2
<2 <2 <2 <2
<20 <20 <20 <20
<2 <2 <2 <2
7.9 12 J 17 J <3.3
<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 UJ <2 <2 UJ <8.3
2.5 <2 5.4 <2
12 7.6 29 3.2
<2 <2 <2 <2
<2 <2 <2 <2
<2 UJ <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
11 7.3 27 J 3.4
<2 <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
5.1 4.2 6.7 3.3
7.6 4.1 10 2.8
<2 <2 <2 <2
<2 <2 <2 <2
August 2019
18
TR0795 Page 14 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC19A-042419 STW-LOC-19A-062719 STW-LOC19A-082119 STW-LOC19A-100919 STW-LOC-19A-122019
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
30 J 4.5 J 18 7.3 380
< 5 UJ <5 UJ <5 <5 16
4.8 J 2.6 J 5.1
7.1 35
<2 UJ <2 UJ <2 <2 UJ 9.7
<2 UJ <2 UJ <2 <2 UJ 4 J
<2 UJ <2 UJ <2 <2 UJ <2
27 J <10 UJ 21 19 340
<20 UJ <20 UJ <20 <20 180
<2 UJ <2 UJ 4.5 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2
<2 UJ <2 UJ <2 <2 UJ 11 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 2.1 2.2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 2.4
<2 UJ <2 UJ <2 <2 UJ 4.1
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ
62 7.1 49 36 980
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <4 <4 <4
<20 UJ <20 UJ <20 <20 <20
<2.1 UJ <2.1 UJ <2.1 <2.1 <2.1
<2.1 UJ <2.1 UJ <2.1 <2.1 <2.1
<20 <20 <20 <20 <20
<37 UJ <37 <2 <2 <2
<35 UJ <35 <2 <2 <2
<20 <20 <20 <20 <20
<2.0 UJ <2 <2 <2 <2
4.3 J 2.4 J 2.9 6 3.2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ 3.3 J 5.1 9.5 3.5
<2.0 UJ <2 UJ <2 UJ <2 UJ <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ 6.1 J 6.8 15 7.8
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 3.1 B
<2.0 UJ <2 UJ <2 UJ <2 UJ <2
<2.0 UJ <2 <2 <2 <2
<2.0 UJ <2 <2 <2 <2
2.6 J 5.3 7.1 15 6.3
<2.0 UJ <2 UJ <2 <2 UJ <2
<2.0 UJ <2 <2 <2 46 B
<2.0 UJ <2 <2 <2 15 B
2.6 J 3.1 J 3.7 3.3 14
<2.0 UJ <2 2.4 2.5 <2
-- -- <2 <2 <2
-- -- <2 <2 <2
19A
TR0795 Page 15 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC19B-042419 STW-LOC-19B-062719 STW-LOC19B-082119 STW-LOC19B-100919 STW-LOC-19B-122019
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
22 9.6 26 5.9 22 B
<5 UJ <5 UJ <5 <5 5.6
9.8 J 3.1 J 5.3
3.9 4.3
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 UJ <2
<2 UJ <2 UJ <2 <2 UJ <2
39 J <10 UJ 26 12 35 B
<20 UJ <20 UJ <20 <20 <20
<2 UJ <2 UJ 5 <2 <2
<2 UJ 21 J 2.6 2.2 <2
6.5 J <2 UJ <2 <2 UJ <2
3.5 J <2 UJ <2 <2 2.2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ 3 3.2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
5.3 J <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ
86 34 68 27 69
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <4 <4 <4
<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 <2 <2 <2
<35 UJ <35 <2 <2 <2
<20 <20 <20 <20 <20
<2.0 <2 <2 2.3 <2
4.4 3 4.6 7.2 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
<2.0 <2 <2 <2 <2
2.2 4 7.9 12 2.7
<2.0 <2 UJ <2 UJ 6.2 J <2 UJ
<2.0 <2 <2 2.3 <2
3.4 6.8 11 18 5.2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 UJ <2 UJ <2 UJ <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
3.6 6 11 18 3.9
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
4.9 3.1 30 4.4 <2
3.2 2.2 2.1 3.4 2.4
-- -- <2 <2 <2
-- -- <2 <2 <2
19B
TR0795 Page 16 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 STW-LOC20-082219 STW-LOC20-082219-D
04/24/2019 04/24/2019 06/28/2019 8/22/2019 8/22/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- -- Field Duplicate
61 63 50 49 J 71 J
53 J 56 J 48 650 J 630
30 J 31 J 28 210 J 210
6.9 J 6.7 J 9.3 71 71
3.7 J 3.5 J 8.7 44 46
<2 UJ <2 UJ 20 19 22
37 J 35 J 30 39 46
<20 UJ <20 UJ <20 <20 <20
5.3 J 5.5 J 260 39 40
7.8 J 7.9 J 110 70 67
28 J 27 J 69 J 63 J 74 J
68 J 68 J 390 J 540 J 640 J
<2 UJ <2 UJ 2 <2 <2
2.9 J 2.4 J 14 28 28
2 J <2 UJ 7.3 8.6 8.3
<2 UJ <2 UJ <2 6.4 6.3
6.6 J 7.8 J 12 J 11 J 12 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
310 310 1,100 1,800 2,000
<2.0 <2.0 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <2 <4 <4
<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 <37 <2 <2 <2
<35 <35 <2 <2 <2
<20 <20 <20 <20 <20
2.2 2.2 3.8 4.2 4.2
6.5 5.9 8.8 10 10
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
7.17 152020
<2.0 <2.0 <2 <2 <2
3.5 3.5 5.8 5.9 6.3
7.8 7.7 23 26 27
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 UJ <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
6.7 7.6 17 27 26
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
<2.0 <2.0 <2 <2 <2
8.7 8.5 9.3 10 9.5
13 13 15 14 14
-- -- -- <2 <2
-- -- -- <2 <2
20
August 2019April 2019
TR0795 Page 17 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC20-101019 STW-LOC20-100919-D STW-LOC-20-122019 STW-LOC-20-122019-D
10/10/2019 10/10/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- Field Duplicate -- Field Duplicate
30 J 34 42 47
24 J 21 J 22 20
18 19 11 11
5.7 5.7 2.7 2.8
4.3 4.6 <2 <2
7.6 J 7.3 J 2.2 <2
34 27 33 B 32 B
<20 <20 <20 <20
17 16 5.3 5.5
46 41 2.2 2.1
31 J 18 J 7.7 J 6.3 J
190 J 160 J 49 J 44 J
<2 <2 <2 <2
13 J 8.7 J 2.4 2.2
3.8 3.3 <2 <2
<2 <2 <2 <2
6.9 J 5.4 J 4 J 3.3 J
<2 <2 <2 <2
<2 <2 <2 <2
<2 <2 <2 <2
430 370 180 180
<2 <2 <2 <2
<20 <20 <20 <20
<20 <20 <20 <20
<2 <2 <2 <2
<4 <4 <4 <4
<20 <20 <20 <20
<2.1 <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
6.3 6.2 3 3
19 24 5.4 4.5
<2 <2 <2 <2
<2 UJ 19 J <2 <2
<2 <2 <2 <2
<2 3 <2 <2
<2 <2 <2 <2
34 J 100 J 8.8 8.8
<2 <2 <2 <2
8.6 8.7 3.2 3.4
48 J 92 J 15 15
<2 <2 <2 <2
<2 UJ 40 J <2 <2
<2 <2 <2 UJ <2
<2 <2 <2 <2
<2 <2 <2 <2
47 65 11 11
<2 <2 <2 <2
<2 <2 <2 <2
<2 8.3 <2 <2
11 J 50 J 5.7 5.9
15 14 7.9 8
<2 <2 <2 <2
<2 <2 <2 <2
20
October 2019 December 2019
TR0795 Page 18 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC21A-042419 STW-LOC-21A-062719 STW-LOC21A-082119 STW-LOC21A-100919 STW-LOC-21A-122019
04/24/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- -- --
33 40 57 97 43
11 J 12 J 9.5 J 11 J 21
16 J 15 J 13
28 16
2.9 J 2.9 J 2.4 12 2.6
2 J <2 UJ <2 9.6 <2
<2 UJ <2 UJ 2.2 6.6 2.5
43 J 33 J 53 71 54 B
<20 UJ <20 UJ <20 25 23
2.1 J 9.7 J 12 7.7 2.7
<2 UJ 2.2 J 4.9 4.3 <2
4.2 J 19 J 31 J 32 J 7.3 J
4.1 J 11 J 25 J 17 J 12 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ 2.5 J 33 8.4 2.1
<2 UJ <2 UJ <2 7.4 <2
<2 UJ <2 UJ 3.8 3.9 <2
3.4 J 4.1 J 34 J 19 J 5 J
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
<2 UJ <2 UJ <2 <2 <2
120 150 280 360 190
<2.0 <2 <2 <2 <2
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<60 <60 <2 <2 <2
<110 <110 <4 <4 <4
<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 <2 <2 <2
<35 UJ <35 <2 <2 <2
<20 <20 <20 <20 <20
2 4 4.5 6.8 2.4
5 9.8 12 17 5
<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 1423316.2
<2.0 <2 <2 <2 <2
3 6.2 6 9.8 3.3
4.4 23 29 41 10
<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
4.8 21 30 40 8.8
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
5.6 9.8 10 12 4
9.1 14 16 23 9.4
-- -- <2 <2 <2
-- -- <2 <2 <2
21A
TR0795 Page 19 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
<52 <20 <20
<20 <20 <20
<60 <60 <2
<110 <110 <4
<20 <20 <20
<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
7.1 12 6.7
<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
-- -- <2
-- -- <2
22
TR0795 Page 20 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
STW-LOC22-100919 STW-LOC22-100919-D STW-LOC-22-122019
10/9/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica
-- Field Duplicate --
27 27 <14
37 J 56 J 25 J
21 23 12 J
7.2 8.1 5
6.7 8.5 4.1 J
7.1 J 14 J 2.3 J
40 37 <10 UJ
<20 <20 <20 UJ
70 73 25 J
63 J 130 J 25 J
18 J 26 J 28 J
210 J 300 J 490 J
<2 2.3 <2
12 15 2.3 J
2.1 2.6 <2
2.5 2.8 <2
5 J 4.5 J 3 J
<2 <2 <2
<2 <2 <2
<2 <2 <2 UJ
530 730 620
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
3.7 3.6 <2
16 J 18 J 130 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
24 24 4.1 J
<2 <2 <2 UJ
6.1 6.2 <2
34 33 <2 UJ
<2 <2 <2
<2 2 <2
<2 <2 <2 UJ
<2 <2 <2
<2 <2 <2
32 32 <2 UJ
<2 <2 <2
<2 <2 <2
<2 <2 <2
8.4 8.4 4.5
12 11 3.4 J
<2 <2 <2
<2 <2 <2
October 2019
22
TR0795 Page 21 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
<20 <20 <20 <20
<20 <20 <51 <50
<60 <60 <3 <12
<110 <110 <14 <13
<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 <37 <2 <7.5
<35 <35 <2 <6.9
<20 <20 <30 <30
<2.0 3.8 3.5 3.7
160 70 55 54
<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
3.6 14 24 25
<2.0 42 <8.7 <8.6
2 5.8 6.2 6
6.6 24 26 26
<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
2.9 19 23 33
-- -- <2.4 <2.3
-- -- <3.1 <3.1
23A
August 2019
TR0795 Page 22 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC23A-082119-
3
STW-LOC23A-082119-
4 STW-LOC23A-100919 STW-LOC-23A-122019
8/21/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica
-- -- -- --
15,000 12,000 110 2,200
1,600 1,200 890 1,100
390 310
200 240
110 92 70 80
46 42 44 37
19 21 J 31 20
<110 <110 <57 <57
45 42 20 33
12,000 12,000 11,000 6,900
520 530 570 330
350 350 340 260
7,000 7,000 5,900 J 3,500
3.5 3.1 2.9 <2
94 89 61 39
130 130 88 83
52 52 71 63
27 23 34 26 J
<9.2 <9.2 <4.6 <4.6
<12 <12 <6 <6
<8.2 <8.2 <4.1 <4.1
37,000 34,000 19,000 15,000
<2 <2 <2 <2
<20 <20 <20 <20
<52 <50 <20 <20
<12 <12 3.3 2.8
<14 <13 <4 <4
<20 <20 <20 <20
<2.1 <2.1 <2.1 <2.1
<2.1 <2.1 <2.1 <2.1
<20 <20 <20 <20
<7.5 <7.5 <2 <2
<6.9 <6.9 <2 <2
<31 <30 <20 <20
3.5 3.9 6.7 2.3
51 49 18 180
<3.2 <3.1 <2 <2
<3.1 5.1 4 2.4
<4.5 <4.3 <2 <2
<5.5 <5.3 4 <2
<2 <2 <2 <2
26 23 31 15
<8.8 <8.5 10 8.1
6.1 6.5 12 3.8
24 27 37 17
<2 <2 <2 <2
5 4.8 3.4 2.1 B
<4.6 <4.4 6.8 4.9
<3.5 <3.3 2.1 <2
<3 <2.9 <2 <2
34 32 43 18
<2.9 <2.8 8 6.4
<13 <12 6.9 5.2 B
<11 <11 3.2 <2
380 310 52 680
33 32 27 11
<2.4 <2.3 <2 <2
<3.2 <3.1 <2 <2
August 2019
23A
TR0795 Page 23 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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 October 2019 August 2019 December 2019
-- STW-LOC-23B-062719 STW-LOC23B-100919 -- STW-LOC-23B-122019
--06/27/2019 10/9/2019 -- 12/20/2019
--TestAmerica TestAmerica -- TestAmerica
-- -- -- -- --
-- 3,200 17 -- 240
-- 160 J 200 -- 13
-- 150 J
56 -- 7.3
-- 67 J 19 --<2
-- 61 J 10 --<2
-- 77 J 8.5 J --<2
-- 19,000 J <28 -- 24 B
-- 8,500 J <20 --<20
-- 49 J 2,700 -- 25
-- 110 J 120 --<2
-- 580 J 100 J --<2
-- 450 J 1,700 J -- 26 J
-- 4.5 J <2 --<2
-- 33 J 20 --<2
-- 5.1 J 20 --<2
-- 21 J 14 --<2
-- 210 J 10 J --<2
--<9.2 UJ <2.3 --<2
--<12 UJ <3 --<2
-- <8.2 UJ <2 -- <2
-- 33,000 5,000 -- 340
-- <3.5 <2 -- <2
-- <37 <20 -- <20
-- <20 <20 -- <20
-- <60 <2 -- <2
-- <110 <4 -- <4
--20 J <20 -- <20
-- <2.1 <2.1 -- <2.1
-- <2.1 <2.1 -- <2.1
-- <20 <20 -- <20
-- <37 <2 -- <2
-- <35 <2 -- <2
-- <20 <20 -- <20
--2.5 5.4 --2.7
--580 18 --4
-- <2 <2 -- <2
-- <2 <2 -- <2
-- <2 <2 -- <2
-- <2 <2 -- <2
-- <2 <2 -- <2
--10 30 --6.6
-- <2 UJ <2 -- <2
-- <2 6.8 --3.2
--12 43 --12
-- <2 <2 -- <2
--2.5 <2 -- <2
-- <2 UJ <2 -- <2
-- <2 <2 -- <2
-- <2 <2 -- <2
--68 40 --8.2
-- <2 UJ <2 -- <2
-- <2 <2 -- <2
-- <2 <2 -- <2
--29 13 --26
--514--7.9
-- -- <2 -- <2
-- -- <2 -- <2
23B
TR0795 Page 24 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
2.3 2.3 3.4 3.4
6.3 5.8 9.4 9.4
<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
-- -- -- --
-- -- -- --
April 2019
24A
June 2019
TR0795 Page 25 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
8/21/2019 8/21/2019 -- 12/20/2019
TestAmerica TestAmerica -- TestAmerica
-- Field Duplicate -- --
16 17 -- 18 B
11 12 -- 12
12 13 -- 6.1
<2 2.1 --<2
<2 <2 --<2
<2 <2 --<2
26 28 -- 41 B
<20 <20 -- 22
<2 <2 --<2
<2 <2 --<2
9.7 J 11 J --<2
4 J 4.2 J -- 12 J
<2 <2 --<2
4.7 5.3 --<2
<2 <2 --<2
<2 <2 --<2
4.5 J 3.9 J --<2
<2 <2 --<2
<2 <2 --<2
<2 <2 -- <2
88 97 -- 110
<2 <2 -- <2
<20 <20 -- <20
<20 <20 -- <20
<2 <2 -- <2
<4 <4 -- <4
<20 <20 -- <20
<2.1 <2.1 -- <2.1
<2.1 <2.1 -- <2.1
<20 <20 -- <20
<2 <2 -- <2
<2 <2 -- <2
<20 <20 -- <20
4.1 3.7 --3.1
9.3 9 -- <2
<2 <2 -- <2
2.5 2 -- <2
<2 <2 -- <2
<2 <2 -- <2
<2 <2 -- <2
19 18 --8.6
<2 <2 -- <2
6 5.8 --4.4
26 26 --15
<2 <2 -- <2
2.7 2.1 --2.8 B
<2 <2 -- <2
<2 <2 -- <2
<2 <2 -- <2
25 27 --10
<2 <2 -- <2
<2 <2 --16 B
<2 <2 --3.1 B
11 10 --7.6
27 J 22 J --17
<2 <2 -- <2
<2 <2 -- <2
August 2019
24A
TR0795 Page 26 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC24B-042419 STW-LOC24B-062719 STW-LOC24B-082119
04/24/2019 06/27/2019 8/21/2019
TestAmerica TestAmerica TestAmerica
-- -- --
14 10 8.9
11 J <5 <5
11 J 8.1 6.7
<2 UJ <2 <2
<2 UJ <2 <2
<2 UJ <2 <2
19 J 17 16
<20 UJ <20 <20
<2 UJ 77 <2
<2 UJ 3.3 <2
5.1 J <2 5.3 J
4.3 J 11 J 2.4 J
<2 UJ <2 <2
<2 UJ <2 4.3
<2 UJ <2 <2
<2 UJ <2 <2
3.8 J <2 2.2 J
<2 UJ <2 <2
<2 UJ <2 <2
<2 UJ <2 <2
68 130 46
<2.0 <2 <2
<20 <20 <20
<20 <20 <20
<60 <2 <2
<110 <2 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<37 2.9 <2
<35 <2 <2
<20 <20 <20
2.2 3.5 4.3
5.5 9.6 9.5
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
61321
<2.0 <2 <2
3.3 5 5.8
81925
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
6.2 17 25
<2.0 <2 <2
<2.0 <2 <2
<2.0 <2 <2
7.7 8.3 9.5
12 14 16
-- -- <2
-- -- <2
24B
TR0795 Page 27 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-LOC24B-100919 STW-LOC-24B-122019 STW-LOC-24B-122019-D
10/9/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica
-- -- Field Duplicate
8.5 11 B 8.7 B
<5 UJ 12 13
7.1 6.5 5.1
2 <2 <2
<2 <2 <2
<2 <2 <2
18 27 B 29 B
<20 <20 <20
<2 <2 <2
<2 <2 <2
6.9 J <2 3.7 J
4.4 J 5.2 J 6.2 J
<2 <2 <2
7 <2 <2
9.6 <2 <2
<2 <2 <2
<2 <2 2.6 J
<2 <2 <2
<2 <2 <2
<2 <2 <2
64 62 68
<2 <2 <2
<20 <20 <20
<20 <20 <20
<2 <2 <2
<4 <4 <4
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<2 <2 <2
<2 <2 <2
<20 <20 <20
6.2 2.8 2.7
18 3.9 J 3.9
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
34 6.8 J 6.8
<2 <2 <2
8.5 3.1 3.2
49 13 J 12
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
<2 <2 <2
46 8.3 J 9.9
<2 <2 <2
<2 <2 <2
<2 <2 <2
11 4.6 J 4.6
15 7.5 7.9
<2 <2 <2
<2 <2 <2
December 2019
24B
TR0795 Page 28 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-LOC24C-042419 STW-LOC24C-062719 STW-LOC24C-082119 -- STW-LOC-24C-122019
04/24/2019 06/27/2019 8/21/2019 -- 12/20/2019
-- TestAmerica TestAmerica -- TestAmerica
-- -- -- -- --
19 16 13 -- 270
11 J <5 <5 --<21
12 J 8.6 7.6 -- 46
<2 UJ <2 <2 -- 20
<2 UJ <2 <2 -- 13
<2 UJ <2 <2 -- 12
28 J 14 23 -- 61 B
<20 UJ <20 <20 -- 31
14 J 3.5 21 -- 490
2.1 J <2 3.3 -- 130
39 J 13 J 18 J -- 470
51 J 5.3 J 53 J -- 1,300
<2 UJ <2 <2 -- 11
4 J 2 6.7 -- 260
6.8 J <2 2.1 -- 930
3.7 J <2 <2 -- 290
36 J 3.9 J 5.4 J -- 170
<2 UJ <2 <2 --<4.6
<2 UJ <2 <2 --<6
<2 UJ <2 <2 -- <4.1
230 66 150 -- 4,500
<2.0 <2 <2 -- <2
<20 <20 <20 -- <20
<20 <20 <20 -- <20
<60 <2 <2 -- <2
<110 <2 <4 -- <4
<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 2.3 <2 -- <2
<35 <2 <2 -- <2
<20 <20 <20 -- <20
2 3.8 4.5 --2.9
4.7 8 8.4 --5.3
<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
5.9 13 22 --7.1
<2.0 <2 <2 -- <2
3.4 5.1 6.1 --3.2
72127--13
<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
6.4 17 26 --11
<2.0 <2 <2 -- <2
<2.0 <2 <2 -- <2
<2.0 <2 <2 -- <2
7.3 7.9 9.8 --5.3
15 15 13 --8.1
-- -- <2 -- <2
-- -- <2 -- <2
24C
TR0795 Page 29 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-TB-042519 STW-TBLK-1 STW-TBLK-082219 STW-TBLK-100919 STW-TB-122619
04/25/2019 06/28/2019 8/22/2019 10/9/2019 12/26/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Trip Blank Trip Blank Trip Blank Trip Blank Trip Blank
<4.0 <4 <2 <4 6.7
<5 UJ <5 <5 <5 <5
<2 UJ <2 <2
<2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<10 UJ <10 <10 <10 11
<20 UJ <20 <20 <20 <20
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
ND ND ND ND 18
<2.0 <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
<2.1 <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 <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
<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
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 2.9
<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
<2.0 <2 <2 <2 27
<2.0 <2 <2 <2 5
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
-- -- <2 <2 <2
-- -- <2 <2 <2
TBLK
TR0795 Page 30 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
04/24/2019 04/24/2019 04/24/2019
TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank
<4.0 <4.0 <4.0
<5 UJ <5 UJ <5 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<10 UJ <10 UJ <10 UJ
<20 UJ <20 UJ <20 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
<2 UJ <2 UJ <2 UJ
ND ND ND
<2.0 <2.0 <2.0
<20 <20 <20
<20 <20 <20
820 J 850 J 780 J
<110 <110 <110
<20 <20 <20
<2.1 <2.1 <2.1
<2.1 <2.1 <2.1
<20 <20 <20
<37 UJ <37 UJ <37
<35 <35 <35
<20 <20 <20
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
<2.0 <2.0 <2.0
-- -- --
-- -- --
April 2019
EQBLK
TR0795 Page 31 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-EQBLK-1 STW-EQBLK-2 STW-EB-01-082119 STW-EB-02-082119 STW-EB-03-082119
06/28/2019 06/27/2019 8/21/2019 8/21/2019 8/21/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<4 <4 <2 <2 <2
<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
<20 <20 <20 <20 <20
<20 <20 <20 <20 <20
<2 <2 <2 <2 <2
<2 <2 <4 <4 <4
<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
<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
-- -- <2 <2 <2
-- -- <2 <2 <2
June 2019 August 2019
EQBLK
TR0795 Page 32 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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-01-100919 STW-EB-02-100919 STW-EB-03-100919
STW-EQBLK-DR-
122019
STW-EQBLK-IO-
122019
10/9/2019 10/9/2019 10/9/2019 12/20/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Equipment Blank Equipment Blank Equipment Blank Equipment Blank Equipment Blank
<4 <4 <4 <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 10 10
<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
<2.1 <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
<2 <2 <2 <2 <2
<2 <2 <2 <2 <2
October 2019 December 2019
EQBLK
TR0795 Page 33 of 34 January 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
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
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
F-53B Major (9Cl-PF3ONS)
F-53B Minor (11Cl-PF3OUdS)
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
DSTW-TB-042519 STW-LOC-FBLK-1 STW-FB-082119 STW-FB-100919 STW-FBLK-122019
04/25/2019 06/27/2019 8/21/2019 10/9/2019 12/20/2019
TestAmerica TestAmerica TestAmerica TestAmerica TestAmerica
Field Blank Field Blank Field Blank Field Blank Field Blank
<4.0 <4 <2 <4 <4 UJ
<5 UJ <5 <5 <5 <5
<2 UJ <2 <2
<2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<10 UJ <10 <10 <10 10
<20 UJ <20 <20 <20 <20
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
<2 UJ <2 <2 <2 <2
ND ND ND ND 10
<2.0 <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
<2.1 <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 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<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
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<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
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2
<2.0 <2 <2 <2 <2 UJ
<2.0 <2 <2 <2 <2
-- -- <2 <2 <2
-- -- <2 <2 <2
FBLK
TR0795 Page 34 of 34 January 2020
TABLE 6
TOTAL DAILY PRECIPITATION -
2019 QUARTER 4
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC, P.C.
Date Total Precipitation
(inches)
Measured Outfall Flow
(MGD)
10/1/2019 -- 18
10/2/2019 -- 24
10/3/2019 -- 24
10/4/2019 -- 25
10/5/2019 -- 24
10/6/2019 -- 25
10/7/2019 -- 27
10/8/2019 -- 20
10/9/2019 -- 24
10/10/2019 -- 25
10/11/2019 -- 14
10/12/2019 -- 2.9
10/13/2019 0.48 0.0
10/14/2019 0.04 1.2
10/15/2019 -- 0.0
10/16/2019 0.30 0.0
10/17/2019 -- 1.0
10/18/2019 -- 0.0
10/19/2019 0.03 0.0
10/20/2019 0.68 1.5
10/21/2019 -- 0.0
10/22/2019 -- 0.2
10/23/2019 -- 3.7
10/24/2019 -- 2.7
10/25/2019 -- 13
10/26/2019 -- 9.4
10/27/2019 -- 6.9
10/28/2019 -- 5.6
10/29/2019 -- 7.8
10/30/2019 -- 9.0
10/31/2019 0.07 10
11/1/2019 -- 8.7
11/2/2019 -- 10
11/3/2019 -- 11
11/4/2019 -- 7.4
11/5/2019 -- 9.2
11/6/2019 -- 8.6
11/7/2019 0.04 10
11/8/2019 0.51 10
11/9/2019 -- 9.3
11/10/2019 -- 9.3
11/11/2019 -- 9.2
11/12/2019 0.29 9.4
11/13/2019 -- 8.9
11/14/2019 0.10 18
11/15/2019 0.96 21
11/16/2019 0.17 20
11/17/2019 -- 20
11/18/2019 0.14 21
11/19/2019 0.01 22
11/20/2019 -- 20
11/21/2019 -- 22
TR0795 Page 1 of 2 January 2020
TABLE 6
TOTAL DAILY PRECIPITATION -
2019 QUARTER 4
Chemours Fayetteville Works, North Carolina
Geosyntec Consultants of NC, P.C.
Date Total Precipitation
(inches)
Measured Outfall Flow
(MGD)
11/22/2019 -- 22
11/23/2019 0.35 22
11/24/2019 -- 21
11/25/2019 -- 20
11/26/2019 -- 21
11/27/2019 -- 21
11/28/2019 -- 21
11/29/2019 -- 20
11/30/2019 0.13 25
12/1/2019 1.24 21
12/2/2019 -- 20
12/3/2019 -- 20
12/4/2019 -- 21
12/5/2019 -- 20
12/6/2019 0.01 21
12/7/2019 -- 21
12/8/2019 0.19 21
12/9/2019 0.01 19
12/10/2019 -- 21
12/11/2019 0.09 19
12/12/2019 -- 21
12/13/2019 1.27 24
12/14/2019 0.24 20
12/15/2019 -- 21
12/16/2019 -- 21
12/17/2019 0.71 22
12/18/2019 --12
12/19/2019 --19
12/20/2019 --21
12/21/2019 -- 22
12/22/2019 0.21 22
12/23/2019 1.01 22
12/24/2019 -- 22
12/25/2019 -- 21
12/26/2019 -- 22
12/27/2019 -- 20
12/28/2019 -- 21
12/29/2019 0.18 22
12/30/2019 0.84 22
12/31/2019 -- 21
Notes:
-- - 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 January 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
GBCTributary1GeorgiaBranchCreek
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; 01/14/2020January 2020
Legend
")Site Features
Site Boundary
Nearby Tributary
Observed Seep (Natural Drainage)
Site Drainage 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 WaterProductionKuraray Laboratory
")")
")
")
")
")")
")@@@@Waste Water Treatment Plant Discharge 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: jkasunicJanuary 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
""
"@@""
"
"
"@@"P:\PRJ\Projects\TR0795\Database and GIS\Illustrator\Wastewater and Stormwater Quarterly Report\TR0795_Paragraph11b_Sample_Locations.ai"
")")
")
")
")
")")
")@@@@D u P o n t A r e aWoodLinedTrench
O p e n C h a n n e l t o O u t f a l l 0 0 2
C o o l i n g Wa t e r C h a n n e l
WastewaterTreatmentPlant Discharge Cape Fear
R
ive
r
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: 1/29/2020 Author: jkasunicJanuary 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 valueUJ - estimated reporting limitDry - Insufficient water to collect sampleNS - 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. * - Samples collected in August 2019 at Locations 18 and 23A were collectedand analyzed as four individual grab samples collected over four hours.5. Locations 18 and 23A were collected as grab samples prior to December 2019.6. 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
Wastewater Treatment Plant Discharge
DuPont Area
Outfall 002
Intake River Water at Facility
Non-process wastewater
Pipe Connection to Facility
Terracotta Pipe and Piping Connected to Terracotta Pipe
Grouted Pipe Section""
"@@""
"
"
"@@Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Wastewater and Stormwater Quarterly Report/Fig3AChemoursSampleLocations_WW_SW_databoxes.aiAugust October December
HFPO-DA 8.9 8.5 11 B
PFMOAA <5 <5 UJ 12
PMPA 16 18 27 B
August October December
HFPO-DA 16 NS 18 B
PFMOAA 11 NS 12
PMPA 26 NS 41 B
August October December
HFPO-DA Dry 17 240
PFMOAA Dry 200 13
PMPA Dry <28 24 B
August*October December
HFPO-DA 16,000 110 2,200
PFMOAA 1,300 890 1,100
PMPA <82 - 120 <57 <57
August October December
HFPO-DA 140 27 <14
PFMOAA 36 J 37 J 25 J
PMPA 20 J 40 <10 UJ
August October December
HFPO-DA 57 97 43
PFMOAA 9.5 J 11 J 21
PMPA 53 71 54 B
August October December
HFPO-DA 49 J 30 J 42
PFMOAA 650 J 24 J 22
PMPA 39 34 33 B
August October December
HFPO-DA 18 7.3 380
PFMOAA <5 <5 16
PMPA 21 19 340
August*October December
HFPO-DA 36 16 12 B
PFMOAA <5 <5 UJ <5
PMPA <10 UJ - 64 <10 UJ 19 B
August October December
HFPO-DA 14 15 21 B
PFMOAA <5 <5 UJ 19
PMPA 33 23 68
August October December
HFPO-DA 1,700 15,000 230
PFMOAA 490 J 1,700 34
PMPA 180 1,300 58
August October December
HFPO-DA 30 12 9.8 B
PFMOAA 25 <5 UJ 14
PMPA 37 27 23 B
August October December
HFPO-DA 55 2,400 28 B
PFMOAA 25 J 38 J 14
PMPA 48 110 27 B
August October December
HFPO-DA 460 120 500
PFMOAA 20,000 240 J 220
PMPA 160 38 130
August October December
HFPO-DA 42 23 29 B
PFMOAA 1,100 24 J 25
PMPA 45 35 29 B
August October December
HFPO-DA 17 17 9 B
PFMOAA <5 <5 UJ 13
PMPA 37 30 19 B
August October December
HFPO-DA 19 17 30 B
PFMOAA <5 <5 UJ 13
PMPA 27 37 53 B
August October December
HFPO-DA 13 16 9.3 B
PFMOAA 6.7 <5 UJ 13
PMPA 23 28 21 B
August October December
HFPO-DA 13 NS 270
PFMOAA <5 NS <21
PMPA 23 NS 61 B
August October December
HFPO-DA 17 Dry 15 B
PFMOAA <5 Dry 20
PMPA 26 Dry 50 B
August October December
HFPO-DA 43 140 35
PFMOAA 12 <5 UJ 15
PMPA 38 45 31 B
August October December
HFPO-DA 26 5.9 22 B
PFMOAA <5 <5 5.6
PMPA 26 12 35 B
")")
")
")
")
")")
")@@@@D u P o n t A r e aWoodLinedTrench
O p e n C h a n n e l t o O u t f a l l 0 0 2
C o o l i n g Wa t e r C h a n n e l
WastewaterTreatmentPlant 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: 1/22/2020 Author: jkasunicJanuary 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. * - Samples collected in August 2019 at Locations 18 and 23A were collectedand analyzed as four individual grab samples collected over four hours.5. Locations 18 and 23A were collected as grab samples prior to December 2019.6. 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
Terracotta Pipe and Piping Connected to Terracotta Pipe
Wastewater Treatment Plant Discharge
DuPont Area
Grouted Pipe Section
Outfall 002
Intake River Water at Facility
Non-process wastewater
""
"@@""
"
"
"@@/Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Wastewater and Stormwater Quarterly Report/Fig3BChemoursSampleLocations_WW_SW_TotalTable3_databoxes.aiTotal Table 3+Month
August 550
October 5,600
December 170
Total Table 3+Month
August 36,000
October 2,000
December 1,800
Total Table 3+Month
August 3,200
October 370
December 180
Total Table 3+Month
August 71
October 80
December 58
Total Table 3+Month
August 87
October 85
December 54
Total Table 3+Month
August 72
October 99
December 140
Total Table 3+Month
August 150
October
December 4,500
NS
Total Table 3+Month
August 46
October 64
December 62
Total Table 3+Month
August 88
October
December 110
NS
Total Table 3+Month
August NS
October 5,000
December 340
Total Table 3+Month
August*22,000 - 48,000
October 19,000
December 15,000
Total Table 3+Month
August 280
October 360
December 190
Total Table 3+Month
August 1,200
October 530
December 620
Total Table 3+Month
August 1,800
October 430
December 180
Total Table 3+Month
August 68
October 27
December 69
Total Table 3+Month
August 49
October 36
December 980
Total Table 3+Month
August*13 - 360
October 37
December 54
Total Table 3+Month
August 480
October 2,600
December 210
Total Table 3+Month
August 70
October 53
December 160
Total Table 3+Month
August 80
October
December 120
DRY
Total Table 3+Month
August 6,300
October 66,000
December 650
Total Table 3+Month
August 150
October 63
December 66
Notes: https://projectsitesb.geosyntec.com/5/FWConsentOrder/Shared Documents/11 - Paragraph 11/P11 Tasks/Outfall Out of Scope/Recurring data updates/[DRAFT - Outfall 002 & Intake Plots - Separate Graph TaIntake and Outfall 002 Concentrations - HFPO-DAChemours Fayetteville Works, North CarolinaFigure4ARaleighJanuary 2020- Outfall 002 samples are 3.5 day composite samples except for samples on October 18,21 and 22 2019, which were grab samples (square symbols).-Intake samples are grab samples.-The plant was shutdown and not discharging cooling water from Outfall 002 during thePlant Turn 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 DetectsOutfall 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‐detects
Notes: https://projectsitesb.geosyntec.com/5/FWConsentOrder/Shared Documents/11 - Paragraph 11/P11 Tasks/Outfall Out of Scope/Recurring data updates/[DRAFT - Outfall 002 & Intake Plots - Separate GraIntake and Outfall 002 Concentrations - PFMOAAChemours Fayetteville Works, North CarolinaFigure4BRaleighJanuary 2020- Outfall 002 samples are 3.5 day composite samples except for samples on October18, 21 and 22 2019, which were grab samples (square symbols).- Intake samples are grab samples.-The plant was shutdown and not discharging cooling water from Outfall 002 duringthe Plant Turn Around between October 12, 2019 and October 24, 2019. The dataseries are discontinuous 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 DetectsOutfall 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‐detects
Notes: https://projectsitesb.geosyntec.com/5/FWConsentOrder/Shared Documents/11 - Paragraph 11/P11 Tasks/Outfall Out of Scope/Recurring data updates/[DRAFT - Outfall 002 & Intake Plots - Separate GraIntake and Outfall 002 Concentrations - PMPAChemours Fayetteville Works, North CarolinaFigure4CRaleighJanuary 2020- Outfall 002 samples are 3.5 day composite samples except for samples on October18, 21 and 22 2019, which were grab samples (square symbols).- Intake samples are grab samples.-The plant was shutdown and not discharging cooling water from Outfall 002 duringthe Plant Turn Around between October 12, 2019 and October 24, 2019. The dataseries are discontinuous 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 DetectsOutfall 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‐detects

APPENDIX A
Field Parameters

TABLE A.1GRAB SAMPLE FIELD PARAMETERS - 2019 QUARTER 4Chemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.October 2019 December 2019 October 2019 December 2019 October 2019 December 2019 October 2019 December 2019 October 2019 December 2019 October 2019 December 2019 6A 8.8 7.0 27 12 0.17 0.10 4.0 10 480 240 10 100 6B 7.9 6.7 26 12 0.16 0.10 4.1 11 620 320 10 4418* 9.5 N/A 30 N/A 0.001 N/A 5.1 N/A -17 N/A 460 N/A 19A 8.4 6.8 36 17 0.073 0.12 3.0 5.7 180 220 140 11 19B 8.9 7.1 34 30 0.093 0.09 2.9 6.5 120 210 33 10 21A 8.0 7.4 25 6.9 0.16 0.15 4.9 11 330 200 6.1 0.5722 10 11 32 27 0.20 1.3 3.2 6.4 59 74 240 1823A* 6.2 N/A 27 N/A 0.17 N/A 3.7 N/A 27 N/A 11 N/A23B 6.7 7.9 32 23 0.16 0.13 4.8 7.4 -3 180 13 0 24A -- 7.2 -- 12 -- 0.10 -- 10.4 -- 220 -- 49 24B 7.9 8.4 25 12 0.17 0.15 4.2 10.7 260 120 1.8 0 24C -- 7.9 -- 13 -- 0.14 -- 10.3 -- 190 -- 0Notes:* Locations 18 and 23A collected as temporal composites in December 2019, see Table A.2.-- - sample not collected°C - degrees Celsiusmg/L - milligrams per litermS/cm - milliSiemens per centimetermV - millivoltN/A - no data reportedNTU - nephelometric turbidity unitsORP - oxidation reduction potentialTurbidity (NTU)LocationpH Temperature (°C) Specific Conductivity (mS/cm) Dissolved Oxygen (mg/L)ORP (mV)TR0795Page 1 of 1January 2020
TABLE A.2TEMPORAL COMPOSITE SAMPLE FIELD PARAMETERS - 2019 QUARTER 4Chemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading1 8.0 5.7 7.4 7.9 25 20 20 137A N/A 5.2 N/A 7.3 N/A 11 N/A 157B N/A 6.3 N/A 7.0 N/A 12 N/A 148 7.9 6.7 N/A 7.7 31 10 N/A 129 7.7 6.9 7.7 7.4 26 9.3 14 1510 9.8 7.7 8.0 7.3 23 10 14 1612 -- -- 7.3 7.4 -- -- 13 1614 9.5 7.2 8.2 9.8 42 11 30 2415 8.6 7.9 7.5 6.8 44 9.0 14 1518* -- -- 11 9.8 -- -- 20 2020 7.6 7.9 7.5 7.5 26 7.2 11 1523A* -- -- N/A 4.6 -- -- N/A 16Notes:*Locations 18 and 23A collected as grab samples in October 2019, see Table A.1.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 potentialLocation October 2019 December 2019 December 2019October 2019pH Temperature (°C)TR0795Page 1 of 3January 2020
TABLE A.2TEMPORAL COMPOSITE SAMPLE FIELD PARAMETERS - 2019 QUARTER 4Chemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.17A7B891012141518*2023A*Notes:*Locations 18 and 23A collected as grab samples in October 2019, see Table A.1.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 potentialLocationInitial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading0.15 0.19 0.10 0.10 9.4 5.9 11 10N/A 0.16 N/A 0.10 N/A 6.7 N/A 10N/A 0.20 N/A 0.16 N/A 4.7 N/A 100.77 0.72 N/A 1.45 7.2 4.3 N/A 100.15 0.19 0.10 0.11 8.7 4.6 10 9.80.074 0.091 0.11 0.10 17 6.5 10 9.8-- -- 0.23 0.23 -- -- 10 9.50.17 2.6 0.27 0.26 7.3 4.0 7.7 8.10.20 0.28 0.11 0.24 8.1 4.1 10 9.8-- -- 0.55 0.59 -- -- 8.2 8.40.20 0.24 0.13 0.13 8.4 5.2 10 10-- -- N/A 0.15 -- -- N/A 8.3Dissolved Oxygen (mg/L)October 2019 December 2019October 2019 December 2019Specific Conductivity (mS/cm)TR0795Page 2 of 3January 2020
TABLE A.2TEMPORAL COMPOSITE SAMPLE FIELD PARAMETERS - 2019 QUARTER 4Chemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.17A7B891012141518*2023A*Notes:*Locations 18 and 23A collected as grab samples in October 2019, see Table A.1.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 potentialLocationInitial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading Initial Reading Final Reading530 270 280 320 7.4 4.2 97 50N/A 260 N/A 360 N/A 0.0 N/A 36N/A 270 N/A 290 N/A 0.0 N/A 41150 260 N/A 230 15 0.0 N/A 0.0370 260 240 380 8.1 0.0 52 41180 230 240 270 8.7 73 84 42-- -- 200 250 -- -- 0.0 0.199 240 190 120 7.0 0.0 0.0 0.0150 200 170 260 1.4 0.0 48 41-- -- 130 250 -- -- 110 120210 200 220 380 6.8 0.0 53 40-- -- N/A 380 -- -- N/A 40Turbidity(NTU)October 2019 December 2019ORP(mV)October 2019 December 2019TR0795Page 3 of 3January 2020

APPENDIX B
Laboratory Reports and DVM Workbooks

ADQM Data Review Narrative - FAY 4Q19 Stormwater Samp updated.doc 1 of 3
ADQM DATA REVIEW
NARRATIVE

Site Chemours FAY – Fayetteville

Project 4Q19 Stormwater Sampling (updated)

Project Reviewer Michael Aucoin, AECOM as a Chemours contractor

Sampling Dates October 9 - 10, 2019
December 20, 23, and 26, 2019

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:

o October 11, 2019
o December 27, 2019

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:

• Some of the analytical results have been qualified B, and may be biased high, or may be false
positives, because an associated equipment or trip (travel) blank contained a comparable
concentration. Additional analytical results for samples collected during December 2019 and not
qualified by the DVM because the trip blank was found in a separate SDG, were manually
qualified B as appropriate (up to five times the blank concentration) and may be biased high, or
may be false positives, because the associated trip (travel) blank contained a comparable
concentration.
• 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; a transition mass ratio for the indicated analyte outside of the established ratio limits, and;
ADQM Data Review Narrative - FAY 4Q19 Stormwater Samp updated.doc 2 of 3
poor field duplicate, lab replicate, or laboratory blank spike 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 4Q19 Stormwater Samp updated.doc 3 of 3
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 ReportContamination detected in equipment blank(s). Sample result does not differ significantly from the analyte concentration detected in the associatedequipment blank(s).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-24C-12201912/20/2019320-57361-3PMPA0.061UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.057PQLSTW-LOC-24C-12201912/20/2019320-57361-3PMPA0.061UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.057PQLPage 1 of 32
Contamination detected in trip blank(s). Sample result does not differ significantly from the analyte concentration detected in the associated trip blank(s).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-1-12201912/20/2019320-57364-1PMPA0.023UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-1-12201912/20/2019320-57364-1PMPA0.024UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-1-12201912/20/2019320-57364-1Hfpo Dimer Acid0.0098UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-12-12201912/20/2019320-57364-7PMPA0.050UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-12-12201912/20/2019320-57364-7PMPA0.051UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-12-12201912/20/2019320-57364-7Hfpo Dimer Acid0.015UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-15-12201912/20/2019320-57359-1PMPA0.031UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-15-12201912/20/2019320-57359-1PMPA0.033UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-18-12201912/20/2019320-57359-2PMPA0.019UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-18-12201912/20/2019320-57359-2PMPA0.019UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-18-12201912/20/2019320-57359-2Hfpo Dimer Acid0.012UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-14-12201912/20/2019320-57364-8Hfpo Dimer Acid0.021UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-19A-12201912/20/2019320-57356-3PerfluoroundecanoicAcid0.015UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PerfluorononanoicAcid0.0031UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PerfluorotridecanoicAcid0.046UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-19B-12201912/20/2019320-57356-4PMPA0.035UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-19B-12201912/20/2019320-57356-4PMPA0.035UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-19B-12201912/20/2019320-57356-4Hfpo Dimer Acid0.022UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-20-12201912/20/2019320-57359-4PMPA0.033UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLPage 2 of 32
Contamination detected in trip blank(s). Sample result does not differ significantly from the analyte concentration detected in the associated trip blank(s).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-20-12201912/20/2019320-57359-4PMPA0.033UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-20-122019-D12/20/2019320-57359-5PMPA0.032UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-20-122019-D12/20/2019320-57359-5PMPA0.033UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-21A-12201912/20/2019320-57356-5PMPA0.054UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-21A-12201912/20/2019320-57356-5PMPA0.052UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-23A-12201912/20/2019320-57359-3PerfluorononanoicAcid0.0021UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-23A-12201912/20/2019320-57359-3PerfluorotridecanoicAcid0.0052UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-24A-12201912/20/2019320-57356-8PMPA0.041UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24A-12201912/20/2019320-57356-8PMPA0.043UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24A-12201912/20/2019320-57356-8Hfpo Dimer Acid0.018UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-24A-12201912/20/2019320-57356-8PerfluoroundecanoicAcid0.0031UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-24A-12201912/20/2019320-57356-8PerfluorononanoicAcid0.0028UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-24A-12201912/20/2019320-57356-8PerfluorotridecanoicAcid0.016UG/L537 ModifiedB3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PMPA0.027UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24B-12201912/20/2019320-57361-1PMPA0.027UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24B-12201912/20/2019320-57361-1Hfpo Dimer Acid0.011UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2PMPA0.029UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2PMPA0.028UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2Hfpo Dimer Acid0.0087UG/L537 ModifiedB3535_PFC0.0040PQLPage 3 of 32
Contamination detected in trip blank(s). Sample result does not differ significantly from the analyte concentration detected in the associated trip blank(s).LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-6A-12201912/20/2019320-57356-1PMPA0.053UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-6A-12201912/20/2019320-57356-1PMPA0.053UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-6A-12201912/20/2019320-57356-1Hfpo Dimer Acid0.030UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-23B-12201912/20/2019320-57356-7PMPA0.024UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-23B-12201912/20/2019320-57356-7PMPA0.024UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-6B-12201912/20/2019320-57356-2PMPA0.019UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-6B-12201912/20/2019320-57356-2PMPA0.019UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-6B-12201912/20/2019320-57356-2Hfpo Dimer Acid0.0090UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-7A-12201912/20/2019320-57364-2PMPA0.021UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-7A-12201912/20/2019320-57364-2PMPA0.020UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-7A-12201912/20/2019320-57364-2Hfpo Dimer Acid0.0093UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-7B-12201912/20/2019320-57364-3PMPA0.029UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-7B-12201912/20/2019320-57364-3PMPA0.029UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-7B-12201912/20/2019320-57364-3Hfpo Dimer Acid0.029UG/L537 ModifiedB3535_PFC0.0040PQLSTW-LOC-9-12201912/20/2019320-57364-5PMPA0.027UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-9-12201912/20/2019320-57364-5PMPA0.026UG/LCl. Spec. Table 3Compound SOPBPFAS_DI_Prep0.010PQLSTW-LOC-9-12201912/20/2019320-57364-5Hfpo Dimer Acid0.028UG/L537 ModifiedB3535_PFC0.0040PQLPage 4 of 32
High relative percent difference (RPD) observed between field duplicate and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC20-10101910/10/2019320-55244-10PerfluorododecanoicAcid (trial)0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10PerfluorononanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10PerfluorodecanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLPage 5 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-8-12231912/23/2019320-57364-4Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PerfluorotetradecanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-6B-12201912/20/2019320-57356-2Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-6B-12201912/20/2019320-57356-2Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PerfluorotetradecanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PerfluorohexanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-19B-12201912/20/2019320-57356-4Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-19B-12201912/20/2019320-57356-4Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3N-ethylperfluoro-1-octanesulfonamide0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLPage 6 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC1-10101910/10/2019320-55244-1PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC1-10101910/10/2019320-55244-1PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC14-10101910/10/2019320-55244-8PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC14-10101910/10/2019320-55244-8PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC14-10101910/10/2019320-55244-8PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC14-10101910/10/2019320-55244-8PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC15-10101910/10/2019320-55244-9PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC15-10101910/10/2019320-55244-9PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC18-10091910/09/2019320-55247-3NVHOS0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3NVHOS0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PMPA0.010UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC18-10091910/09/2019320-55247-3PMPA0.010UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC19A-10091910/09/2019320-55247-4PFO3OA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFO3OA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFO4DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFO4DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLPage 7 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC19A-10091910/09/2019320-55247-4PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4R-EVE0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4R-EVE0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4Byproduct 40.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4Byproduct 40.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4Byproduct 50.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4Byproduct 50.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFO4DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFO4DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5Byproduct 40.0020UG/LCl. Spec. Table 3CompoundUJPFAS_DI_Prep0.0020PQLPage 8 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC19B-10091910/09/2019320-55247-5Byproduct 40.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2NVHOS0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2NVHOS0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PMPA0.010UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC-22-12201912/20/2019320-57356-6PMPA0.010UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.010PQLSTW-LOC-22-12201912/20/2019320-57356-6PEPA0.020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.020PQLSTW-LOC-22-12201912/20/2019320-57356-6PEPA0.020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-19B-12201912/20/2019320-57356-4PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-19B-12201912/20/2019320-57356-4PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PFECA-G0.0020UG/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PFO5DA0.0020ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0020PQLPage 9 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC18-10091910/09/2019320-55247-3PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC18-10091910/09/2019320-55247-3PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC24B-10091910/09/2019320-55247-10PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC24B-10091910/09/2019320-55247-10PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC6A-10091910/09/2019320-55247-1PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC6A-10091910/09/2019320-55247-1PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC6B-10091910/09/2019320-55247-2PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC6B-10091910/09/2019320-55247-2PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC7A-10101910/10/2019320-55244-2PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLSTW-LOC7A-10101910/10/2019320-55244-2PFMOAA0.0050ug/LCl. Spec. Table 3Compound SOPUJPFAS_DI_Prep0.0050PQLPage 10 of 32
The preparation hold time for this sample was exceeded. The reporting limit may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-9-12201912/20/2019320-57364-5PerfluoroundecanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5PerfluorononanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5PerfluorotridecanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-FBLK-12201912/20/2019320-57361-4Hfpo Dimer Acid0.0040UG/L537 ModifiedUJ3535_PFC0.0040PQLSTW-FBLK-12201912/20/2019320-57361-4PerfluoropentanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-FBLK-12201912/20/2019320-57361-4PerfluorohexanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-FBLK-12201912/20/2019320-57361-4PFOA0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-FBLK-12201912/20/2019320-57361-4Perfluorobutanoic Acid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLSTW-FBLK-12201912/20/2019320-57361-4PerfluoroheptanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLPage 11 of 32
One or more surrogates had relative percent recovery (RPR) values less than the data rejection level. The reported result is unusable.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC19A-10091910/09/2019320-55247-4Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19A-10091910/09/2019320-55247-4Perfluorohexadecanoicacid (PFHxDA)0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5Perfluorooctadecanoicacid0.0020ug/L537 ModifiedUJ3535_PFC0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PerfluoropentanoicAcid0.0020UG/L537 ModifiedUJ3535_PFC0.0020PQLPage 12 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC6B-10091910/09/2019320-55247-2Byproduct 50.0028UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-10091910/09/2019320-55247-2Byproduct 50.0030UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1Byproduct 50.0029UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1Byproduct 50.0031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-10091910/09/2019320-55247-10Byproduct 50.0044UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-10091910/09/2019320-55247-10Byproduct 50.0048UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6Byproduct 50.017UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6Byproduct 50.017UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7Byproduct 50.21UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23A-10091910/09/2019320-55247-8Byproduct 55.9UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0058PQLSTW-LOC23A-10091910/09/2019320-55247-8Byproduct 56.0UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0058PQLSTW-LOC23B-10091910/09/2019320-55227-1Byproduct 51.7UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0029PQLSTW-LOC23B-10091910/09/2019320-55227-1Byproduct 51.7UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0029PQLPage 13 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC7A-10101910/10/2019320-55244-2R-EVE0.0048UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-10101910/10/2019320-55244-2R-EVE0.0049UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-10101910/10/2019320-55244-2Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-10101910/10/2019320-55244-2Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-10101910/10/2019320-55244-2Byproduct 50.0032UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7A-10101910/10/2019320-55244-2Byproduct 50.0031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3R-EVE0.0055UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3R-EVE0.0055UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3Byproduct 40.022UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3Byproduct 40.021UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3Byproduct 50.14UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC7B-10101910/10/2019320-55244-3Byproduct 50.14UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4Byproduct 50.60UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4Byproduct 50.57UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-10101910/10/2019320-55244-5R-EVE0.091UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-10101910/10/2019320-55244-5R-EVE0.095UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 14 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC9-10101910/10/2019320-55244-5Byproduct 40.30UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-10101910/10/2019320-55244-5Byproduct 40.30UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-10091910/09/2019320-55247-2R-EVE0.0047UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-10091910/09/2019320-55247-2R-EVE0.0054UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-10091910/09/2019320-55247-2Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6B-10091910/09/2019320-55247-2Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1R-EVE0.0060UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1R-EVE0.0065UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1Byproduct 40.015UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC6A-10091910/09/2019320-55247-1Byproduct 40.014UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-10091910/09/2019320-55247-10Byproduct 40.0069UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC24B-10091910/09/2019320-55247-10Byproduct 40.0078UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3R-EVE0.0024UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3R-EVE0.0027UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3Byproduct 40.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3Byproduct 40.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-12-12201912/20/2019320-57364-7Byproduct 50.015UG/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0020PQLPage 15 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC-12-12201912/20/2019320-57364-7Byproduct 50.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-1-12201912/20/2019320-57364-1Byproduct 40.0050UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-1-12201912/20/2019320-57364-1Byproduct 40.0051UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-1-12201912/20/2019320-57364-1Byproduct 50.0071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-1-12201912/20/2019320-57364-1Byproduct 50.0070UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6R-EVE0.038UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6R-EVE0.037UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6Byproduct 40.035UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6Byproduct 40.033UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6Byproduct 50.10UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6Byproduct 50.10UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2R-EVE0.0052UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2R-EVE0.0050UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2Byproduct 40.0077UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2Byproduct 40.0072UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2Byproduct 50.0062UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 16 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-18-12201912/20/2019320-57359-2Byproduct 50.0062UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1R-EVE0.0047UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1R-EVE0.0050UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1Byproduct 40.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1Byproduct 50.058UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-15-12201912/20/2019320-57359-1Byproduct 50.055UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3Byproduct 50.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-14-12201912/20/2019320-57364-8Byproduct 50.0093UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-14-12201912/20/2019320-57364-8Byproduct 50.0094UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4R-EVE0.0040UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4R-EVE0.0036UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4Byproduct 40.0077UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4Byproduct 40.0078UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4Byproduct 50.049UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-12201912/20/2019320-57359-4Byproduct 50.054UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-122019-D12/20/2019320-57359-5R-EVE0.0033UG/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0020PQLPage 17 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC-20-122019-D12/20/2019320-57359-5R-EVE0.0031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-122019-D12/20/2019320-57359-5Byproduct 40.0063UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-122019-D12/20/2019320-57359-5Byproduct 40.0066UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-122019-D12/20/2019320-57359-5Byproduct 50.044UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-20-122019-D12/20/2019320-57359-5Byproduct 50.042UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6R-EVE0.0030UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6R-EVE0.0032UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Byproduct 40.028UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Byproduct 40.031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Byproduct 50.49UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6Byproduct 50.52UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-21A-12201912/20/2019320-57356-5R-EVE0.0050UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-21A-12201912/20/2019320-57356-5Byproduct 40.0073UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-21A-12201912/20/2019320-57356-5Byproduct 50.012UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-21A-12201912/20/2019320-57356-5Byproduct 50.011UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24A-12201912/20/2019320-57356-8Byproduct 50.012UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 18 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-24A-12201912/20/2019320-57356-8Byproduct 50.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1Byproduct 50.0052UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1Byproduct 50.0052UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10R-EVE0.0069UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10Byproduct 40.031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10Byproduct 50.19UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10Byproduct 50.20UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6R-EVE0.019UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6R-EVE0.018UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6Byproduct 40.032UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6Byproduct 40.035UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7R-EVE0.0050UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7R-EVE0.0057UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7Byproduct 40.018UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9R-EVE0.0045UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9R-EVE0.0046UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23B-10091910/09/2019320-55227-1R-EVE0.010UG/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0035PQLPage 19 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC23B-10091910/09/2019320-55227-1Byproduct 40.10UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0079PQLSTW-LOC23B-10091910/09/2019320-55227-1Byproduct 40.10UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0079PQLSTW-LOC20-100919-D10/10/2019320-55244-7R-EVE0.0055UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7Byproduct 50.16UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7Byproduct 50.16UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10Hfpo Dimer Acid0.030UG/L537 ModifiedJ3535_PFC0.0040PQLSTW-LOC-6B-12201912/20/2019320-57356-2Byproduct 50.0064UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6B-12201912/20/2019320-57356-2Byproduct 50.0071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-23B-12201912/20/2019320-57356-7Byproduct 50.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-23B-12201912/20/2019320-57356-7Byproduct 50.027UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7B-12201912/20/2019320-57364-3Byproduct 40.0068UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7B-12201912/20/2019320-57364-3Byproduct 50.071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7B-12201912/20/2019320-57364-3Byproduct 50.071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7A-12201912/20/2019320-57364-2Byproduct 50.0082UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7A-12201912/20/2019320-57364-2Byproduct 50.0089UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6A-12201912/20/2019320-57356-1R-EVE0.0042UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 20 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-6A-12201912/20/2019320-57356-1R-EVE0.0046UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6A-12201912/20/2019320-57356-1Byproduct 40.0065UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6A-12201912/20/2019320-57356-1Byproduct 40.0071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6A-12201912/20/2019320-57356-1Byproduct 50.0064UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-6A-12201912/20/2019320-57356-1Byproduct 50.0066UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2R-EVE0.0026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2R-EVE0.0026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2Byproduct 40.0037UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2Byproduct 50.0062UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2Byproduct 50.0060UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-10101910/10/2019320-55244-9R-EVE0.071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-10101910/10/2019320-55244-9R-EVE0.070UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-10101910/10/2019320-55244-9Byproduct 40.25UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC15-10101910/10/2019320-55244-9Byproduct 40.25UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-10101910/10/2019320-55244-1Byproduct 40.0085UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-10101910/10/2019320-55244-1Byproduct 40.0080UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC1-10101910/10/2019320-55244-1Byproduct 50.0023UG/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0020PQLPage 21 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC-9-12201912/20/2019320-57364-5R-EVE0.0035UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5R-EVE0.0036UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5Byproduct 40.0083UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5Byproduct 50.049UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5Byproduct 50.049UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4Byproduct 40.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4Byproduct 40.023UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4Byproduct 50.62UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4Byproduct 50.59UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 22 of 32
High relative percent difference (RPD) observed between field duplicate and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC20-10101910/10/2019320-55244-10PerfluoroheptanoicAcid0.034UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10R-EVE0.0075UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10Byproduct 40.027UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7PFO5DA0.0071ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7PFMOAA0.037ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC22-10091910/09/2019320-55247-7PFESA-BP20.063ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7PFESA-BP20.066ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7Byproduct 40.019UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7Byproduct 50.21UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFO5DA0.014ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFO5DA0.015ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFMOAA0.056ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFMOAA0.056ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFESA-BP20.13ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9PFESA-BP20.13ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9Byproduct 40.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9Byproduct 40.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 23 of 32
High relative percent difference (RPD) observed between field duplicate and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC22-100919-D10/09/2019320-55247-9Byproduct 50.30UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9Byproduct 50.30UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7NVHOS0.0087UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7NVHOS0.0083UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PerfluorohexanoicAcid0.092UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PFOA0.050UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PerfluorodecanoicAcid0.019UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PerfluoroheptanoicAcid0.10UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PerfluorononanoicAcid0.040UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7R-EVE0.0054UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7Byproduct 40.018UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7Byproduct 40.019UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10NVHOS0.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10NVHOS0.013UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10PerfluorohexanoicAcid0.048UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10PFOA0.011UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-122019-D12/20/2019320-57361-2Byproduct 40.0044UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 24 of 32
High relative percent difference (RPD) observed between LCS and LCSD samples. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-10-12201912/20/2019320-57364-6PFO4DA0.011ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-10-12201912/20/2019320-57364-6PFO4DA0.012ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PFO4DA0.0040ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-19A-12201912/20/2019320-57356-3PFO4DA0.0040ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO4DA0.0041ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO4DA0.0041ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4PFO4DA0.013ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-8-12231912/23/2019320-57364-4PFO4DA0.013ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5PFO4DA0.0038ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5PFO4DA0.0039ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 25 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-14-12201912/20/2019320-57364-86:2 Fluorotelomersulfonate0.039ug/L537 ModifiedJ3535_PFC0.020PQLSTW-LOC22-10091910/09/2019320-55247-7Perfluorobutanoic Acid0.016UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC22-100919-D10/09/2019320-55247-9Perfluorobutanoic Acid0.018UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PerfluoropentanoicAcid0.027UG/L537 ModifiedJ3535_PFC0.0020PQLPage 26 of 32
Quality review criteria exceeded between the REP (laboratory replicate) and parent sample. The reported result may be imprecise.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-19A-12201912/20/2019320-57356-3Byproduct 50.012UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-21A-12201912/20/2019320-57356-5Byproduct 40.0084UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-23A-12201912/20/2019320-57359-3R-EVE0.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0070PQLSTW-LOC-23A-12201912/20/2019320-57359-3R-EVE0.031UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0070PQLSTW-LOC23B-10091910/09/2019320-55227-1PFO5DA0.0085ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC23B-10091910/09/2019320-55227-1PFO5DA0.0085ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-7B-12201912/20/2019320-57364-3Byproduct 40.0068UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-9-12201912/20/2019320-57364-5Byproduct 40.0071UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 27 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC7B-10101910/10/2019320-55244-3PFMOAA0.024ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC7B-10101910/10/2019320-55244-3PFMOAA0.023ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC8-10101910/10/2019320-55244-4PFO2HxA0.095ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4PFO2HxA0.10ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4PFO5DA0.085ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4PFO5DA0.078ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4PFMOAA0.24ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC8-10101910/10/2019320-55244-4PFMOAA0.24ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC8-10101910/10/2019320-55244-4R-EVE0.0070UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4R-EVE0.0063UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4Byproduct 40.037UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC8-10101910/10/2019320-55244-4Byproduct 40.034UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC9-10101910/10/2019320-55244-5PFMOAA0.038ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC9-10101910/10/2019320-55244-5PFMOAA0.039ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-10101910/10/2019320-55244-10PFO5DA0.0076ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-10101910/10/2019320-55244-10PFO5DA0.0073ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 28 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC20-10101910/10/2019320-55244-10PFMOAA0.024ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-10101910/10/2019320-55244-10PFMOAA0.024ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC-18-12201912/20/2019320-57359-2PFO2HxA0.0039ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-18-12201912/20/2019320-57359-2PFO2HxA0.0039ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO2HxA0.012ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO2HxA0.011ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO5DA0.0023ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFO5DA0.0022ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFMOAA0.025ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC-22-12201912/20/2019320-57356-6PFMOAA0.025ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC-22-12201912/20/2019320-57356-6PFESA-BP10.025UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFESA-BP10.026UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6NVHOS0.0023UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6NVHOS0.0021UG/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFESA-BP20.025ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC-22-12201912/20/2019320-57356-6PFESA-BP20.025ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC21A-10091910/09/2019320-55247-6PFMOAA0.011ug/LCl. Spec. Table 3CompoundJPFAS_DI_Prep0.0050PQLPage 29 of 32
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:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSOPSTW-LOC21A-10091910/09/2019320-55247-6PFMOAA0.011ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC22-10091910/09/2019320-55247-7PFO5DA0.0071ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC22-10091910/09/2019320-55247-7PFMOAA0.037ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-100919-D10/10/2019320-55244-7PFO5DA0.0073ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PFO5DA0.0073ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC20-100919-D10/10/2019320-55244-7PFMOAA0.021ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC20-100919-D10/10/2019320-55244-7PFMOAA0.020ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0050PQLSTW-LOC18-10091910/09/2019320-55247-3PFO2HxA0.0055ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3PFO2HxA0.0059ug/LCl. Spec. Table 3Compound SOPJPFAS_DI_Prep0.0020PQLPage 30 of 32
The preparation hold time for this sample was exceeded. The reported result may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-24B-12201912/20/2019320-57361-1PerfluoropentanoicAcid0.0083UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PerfluorohexanoicAcid0.013UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PFOA0.0046UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1Perfluorobutanoic Acid0.0039UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PerfluoroheptanoicAcid0.0068UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PFOA(trial)0.0048UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1Perfluorobutanoic Acid(trial)0.0041UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PerfluoropentanoicAcid (trial)0.0087UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PerfluorohexanoicAcid (trial)0.014UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1PerfluoroheptanoicAcid (trial)0.0068UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC-24B-12201912/20/2019320-57361-1Hfpo Dimer Acid (trial)0.010UG/L537 ModifiedJ3535_PFC0.0040PQLPage 31 of 32
One or more surrogates had relative percent recovery (RPR) values less than the data rejection level. The reported result may be biased low.LABSTATSValidation Options:Validation ReasonFayettevilleSite:Sampling Program:4Q19 Stormwater SamplingAnalyticalMethodAnalyteDateSampledPQLValidationQualifierLab Sample IDPre-prepMDLResultTypeField Sample IDPrepUnitsSTW-LOC-22-12201912/20/2019320-57356-6Perfluorobutanoic Acid0.13UG/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC19B-10091910/09/2019320-55247-5Perfluorohexadecanoicacid (PFHxDA)0.0062ug/L537 ModifiedJ3535_PFC0.0020PQLSTW-LOC18-10091910/09/2019320-55247-3Perfluorobutanoic Acid0.017UG/L537 ModifiedJ3535_PFC0.0020PQLPage 32 of 32