2019.08.08_CCO.p12_IntakeOutfall002MemoCoverLetterEnclosures

The Chemours Company Fayetteville Works 22828 NC Highway 87 W Fayetteville, NC 28306
August 8, 2019
Linda Culpepper Director, Division of Water Resources
1611 Mail Service Center
Raleigh, NC 27699-1611 [e-mail]
Re: PFAS Observations at Chemours Fayetteville Works Cape Fear River Intake and
Outfall 002 in May and June 2019
Dear Ms. Culpepper,
Following up on your discussion with Kevin Garon of Chemours on Thursday, July 25,
please find enclosed a memorandum and associated data table and figures prepared by our
consultant Geosyntec Consultants of NC, P.C. (Geosyntec) regarding elevated PFAS concentrations observed during routine surface water sample collection at Fayetteville Works in late May and early June 2019. As noted in Geosyntec’s memorandum, the elevated PFAS concentrations have since declined, and Chemours is implementing a number of actions to
enhance data for future monitoring.
If you have any questions, please contact me at [e-mail].
Sincerely,
Brian D. Long
Plant Manager Chemours – Fayetteville Works
Enclosure
Geosyntec Memorandum
2
Cc:
Sheila Holman, DEQ
William F. Lane, DEQ
Francisco Benzoni, NC DOJ
Michael Abraczinskas, DAQ
Michael Scott, DWM
David C. Shelton, Chemours
John F. Savarese, WLRK
Kemp Burdette, CFRW
Geoff Gisler, SELC
Atrium at Blue Ridge 2501 Blue Ridge Road, Suite 430 Raleigh, NC 27607 PH 919.870.0576 FAX [phone] www.geosyntec.com
Intake Outfall Memo - 2019-08-07

Memorandum
Date: 7 August 2019
To: The Chemours Company FC, LLC
From: Geosyntec Consultants of NC, P.C.
Subject: Observations of Elevated PFAS Concentrations at the Cape Fear River
Intake and Outfall 002 Sample Locations in May and June 2019

1 INTRODUCTION
Geosyntec Consultants of NC, P.C. (Geosyntec) has prepared this memorandum for The Chemours
Company FC, LLC (Chemours) to discuss elevated per- and polyfluoroalkyl substances (PFAS)
concentrations observed during routine surface water sample collection at the Chemours
Fayetteville Works, North Carolina site (the Site) in late May and early June 2019. Chemours
collects a 3.5-day composite sample twice per week from Outfall 002, and approximately once per
week Chemours collects a grab sample of river water directly from the Cape Fear River within 100
feet of the Site inlet pipe (the Intake sample) where water is pumped from the Cape Fear River for
use at the Site (Figure 1). Given that the Intake sample does not sample water drawn in through
the inlet pipe by the intake pumps, Intake and Outfall 002 sample results have the potential to not
be correlated if a transient local disturbance occurs near either the inlet pipe or Intake sample
locations. Both the Intake and Outfall 002 collected samples are analyzed for PFAS by the Table
3+ Laboratory Standard Operating Procedure (SOP) and EPA Method 537 Mod by North Carolina
Department of Environmental Quality (NCDEQ) approved laboratories. Between late May and
early June 2019, samples collected at these locations were observed to have increases in
concentrations of several Site Associated PFAS. These increased concentrations have since
declined.
2 OBSERVATIONS – MAY AND JUNE 2019
Time series concentrations of PFAS analyzed in Intake and Outfall 002 samples collected in 2019
are shown in Figures 2 to 21. Two datasets exist for Outfall 002. Samples collected at Outfall 002
River Intake and Outfall 002 Memo 7 August 2019
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Intake Outfall Memo - 2019-08-07

are split with one portion analyzed by an external commercial laboratory and the other portion
analyzed by the Chemours onsite laboratory. Data presented here from the onsite laboratory are
considered preliminary. They are useful to assess trends in the Outfall 002 samples. Trends
observed in data from the onsite laboratory are consistent with trends in data from the commercial
laboratories. PFAS data provided by the external laboratories after June 6, 2019 are considered
preliminary pending data validation. They are included in this memorandum and attached figures
for the purposes of evaluating trends associated with the elevated concentrations. Additionally, the
different laboratories reported data to different practical quantitation limits (PQLs). The sample
data, PQLs for non-detect data and laboratory used for each sample result are listed in Table 1.
In Outfall 002 samples, PFAS concentrations have been non-detect for many of the compounds at
the associated laboratory reporting limits for most of 2019. At the end of May, increases in
concentrations were observed for several compounds (See Figures 2 to 21 and Table 1), analyzed
by the Table 3+ SOP (PFMOAA, PFO2HxA, PFO3OA, PFO4DA, PFO5DA, Byproduct 4,
Byproduct 5, PFESA-BP2 and NVHOS). On May 28, 2019, concentrations at Outfall 002 were
reported at the highest concentrations to date in 2019, followed by lower concentrations on May
30 and 31, 2019. Concentrations either returned to prior values, returned to non-detect or continued
to decline for all PFAS analyzed by the Table 3+ SOP. This observation appears in data from both
the commercial laboratory and the onsite laboratory.
In Intake samples, PFAS concentrations have been low to non-detect at the associated laboratory
reporting limits for most of 2019. In the sample collected on June 6, 2019, elevated concentrations
were observed for several compounds (see Figures 2 to 21; Table 1), analyzed by the Table 3+
SOP (HFPO-DA, PFMOAA, PFO2HxA, PFO3OA, PFO4DA, PFO5DA, PEPA, PFESA-BP1,
PFESA-BP2, Byproduct 4, Byproduct 5, Byproduct 6, Hydro-EVE Acid, R-EVE and NVHOS).
In the sample collected the following week and thereafter, concentrations returned to levels
observed before June 6, 2019.
3 DISCUSSION
The present Intake sample collection point is near to the inlet pipe but does not collect water drawn
through the inlet pipe. This could lead to the May 28, 2019 Outfall 002 sample with elevated PFAS
concentrations not indicating a correlation to prior Intake samples, or the elevated Intake sample
on June 6, 2019 not resulting in corresponding increases in subsequent results of Outfall 002
samples.
The distribution of PFAS in the elevated Intake and Outfall 002 samples suggests these increases
may be associated with the same phenomenon. The distribution of PFAS detected in the elevated
May 28, 2019 Outfall 002 sample and the June 6, 2019 Intake sample are similar to each other,
River Intake and Outfall 002 Memo 7 August 2019
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Intake Outfall Memo - 2019-08-07

with the exception of Byproduct 5 being detected in the Intake sample at a higher relative level
than the May 28, 2019 Outfall samples as shown in the table below.
PFAS Detections in Elevated Outfall and Intake Samples

A preliminary review of Site activities in Spring 2019 was conducted to identify potential causes
contributing to the elevated PFAS concentrations observed at the Intake and Outfall 002.
Chemours conducted a review of operating logs, checked with the manufacturing groups and
reviewed daily audio, visual and olfactory monitoring reports. No spills or upsets were recorded
or noted. The table below lists other activities noted by Chemours facility staff. Specifically, the
Site used rental pumps to supplement water supply as two of the three pumps at the intake were
temporarily inoperable. Rental pumps are infrequently used at the Site; for example, in the prior
seven years the only other time rental pumps were used was September to December 2016.
Date Activity / Observation
5/13/2019 • Maintenance performed on two of three pumps (pump #2 and pump #3) in the
intake cove. Pump #3 temporarily shut down.
River Intake and Outfall 002 Memo 7 August 2019
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Intake Outfall Memo - 2019-08-07

• Maintenance reported that the drain valve on pump #2 had failed and this resulted
in pump house water being directed back to the Cape Fear River upstream of intake
cove.
• Rental pumps would need to be used to provide sufficient non-contact cooling water
to the facility.
5/16/2019 • Suction piping placed in intake cove in anticipation of using rental pumps as
replacements for pump #2 and pump #3.
5/28/2019 • Pump # 2 failure occurred.
5/28/2019 to
5/30/2019
• Two rental pumps temporarily put online.
5/28/2019 Elevated Site Associated PFAS Detections in Outfall 002 Sample
5/30/2019 • Water sample collection and flow measurements in Willis Creek as part of the
evaluation of PFAS mass loading in seeps and creeks.
6/3/2019 • Pump # 2 drain valve replaced.
6/6/2019 to
6/7/2019
• Testing and priming of rental pumps, suction lines rinsed.
6/6/2019 Elevated Site Associated PFAS Detections in Intake Sample
6/7/2019 • Two rental pumps go online to supplement pump #1.
6/7/2019 to
6/26/2019
• Rental pump use continues;
• Site associated PFAS detections in Outfall 002 either become non-detect, return to
prior values or continue to decline.

The increases in PFAS concentrations observed in Outfall 002 data and the Intake data on May
28th and June 6th both occurred at times when rental pumps were in use. Rental pump use continued
throughout the month of June, and over this time period the PFAS concentrations reported in the
Intake samples and the Outfall 002 samples declined.
Together the sequence of these detections in both the Outfall 002 May 28, 2019 sample and Intake
June 6, 2019 sample appear associated with the rental pump startup activities. These activities may
have disturbed local conditions resulting in transient increases in PFAS. For instance, this could
come from potentially increased groundwater contributions containing PFAS in these samples.
Chemours has recently installed additional groundwater wells in the vicinity of the intake and has
collected sediment samples in the vicinity of the intake. These data are not yet available but will
be considered as appropriate as part of the Onsite and Offsite Assessment report due by September
30, 2019.
River Intake and Outfall 002 Memo 7 August 2019
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Intake Outfall Memo - 2019-08-07

4 SUMMARY AND RECOMMENDED ACTIONS
Following elevated PFAS concentrations at the Intake and Outfall 002, PFAS concentrations at
both locations have either returned to prior concentrations, are non-detect or are declining. The
elevated concentrations both occurred when rental pump use was initiated, suggesting that this
activity temporarily disturbed the local environment and led to the elevated PFAS. The rental
pumps continued to be used for the month of June and in this period the Site Associated PFAS
concentrations at Outfall 002 either declined or became non-detect.
Chemours is implementing a number of actions in connection with its identification of elevated
PFAS concentration excursions to enhance data for future monitoring. On a routine basis
Chemours will collect samples from the flow of water collected through the inlet pipe, potentially
from where the intake pumps draw water. Also, Chemours has requested Geosyntec to routinely
review PFAS concentration data from the Onsite laboratory during the same 18-month assessment
period as provided for in Consent Order Paragraph 11(c) initial characterization, to assess PFAS
concentration changes. Onsite laboratory data allow for a more expeditious assessment than what
is possible using current reporting timelines from the external laboratories. In the future if
supplemental intake suction piping is used the piping should be suspended in the water column to
avoid potential disturbances to the local environment.
ATTACHMENTS
• Figure 1: Intake Sample Location
• Figures 2 to 21: River Intake and Outfall 002 Site Associated PFAS Concentrations
• Table 1: River Intake and Outfall 002 2019 PFAS Concentrations
*****
Cape Fear River
River Water Intake
Chemours Fayetteville Works, North Carolina
Figure
1Raleigh
100 0 10050 Feet
³
August 2019
Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US
InsetOverview ³
1 0 10.5 Miles
Legend
Approximate Location of River Water Intake Sample
Inlet Pipe
Approximate Position of Intakes for Rental Pump Suction Lines
Site Boundary
Notes:Aerial imagery provided by Esri Basemaps (2017).
Inset
Notes: eRiver Intake and Outfall 002 Concentrations - HFPO-DAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure2RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)HFPO‐DAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PMPAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure3RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PMPAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PEPAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure4RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PEPAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFMOAAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure5RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFMOAAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFO2HxAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure6RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFO2HxAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFO3OAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure7RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFO3OAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFO4DAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure8RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFO4DAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFO5DAChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure9RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFO5DAOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFECA-GChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure10RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFECA‐GOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PFECA BChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure11RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFECA BOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - R-EVEChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure12RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)R‐EVEOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐- SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - EVE AcidChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure13RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)EVE AcidOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Hydro-EVE AcidChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure14RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)Hydro‐EVE AcidOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - NVHOSChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure15RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)NVHOSOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - PESChemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure16RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PESOutfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Byproduct 1Chemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure17RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFESA‐BP1Outfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Byproduct 2Chemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure18RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)PFESA‐BP2Outfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Byproduct 4Chemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure19RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)Byproduct 4Outfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Byproduct 6Chemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure20RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)Byproduct 6Outfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
Notes: River Intake and Outfall 002 Concentrations - Byproduct 5Chemours Fayetteville Works, North CarolinaAcronyms: ng / L: nanograms per literFigure21RaleighAugust 2019Outfall 002 samples are 3.5 day composite samplesRiver intake samples are grab samples.0.01 0.1 1 10 100 1,000 10,000 100,000DateConcentration (ng/L)Byproduct 5Outfall 002 External Lab AverageOutfall 002 External Lab DetectsOutfall 002 External Lab Non‐DetectsOutfall 002 Onsite Lab AverageOutfall 002 Onsite Lab DetectsOutfall 002 Onsite Lab Non‐DetectsRiver Intake External Lab AverageRiver Intake External Lab DetectsRiver Intake External Lab Non‐DetectsPRELIMINARY ‐‐ SOME ANALYTICAL RESULTS NOT YET VALIDATED
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location ID Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002Field Sample ID O90103 - OUTFALL 002 O90107 - OUTFALL 002 O90110 - OUTFALL 002 O90114 - Outfall 002 O90117 - Outfall 002 O90122 - OUTFALL 002 O90125 - OUTFALL 002 O90128-OUTFALL 002 PM0119-O90128 O90201-OUTFALL 002 O90204-Outfall 002 O90207-Outfall 002 O90211-OUTFALL 002 O90214-OUTFALL 002 O90218-Outfall 002Date Sampled 01/03/2019 01/07/2019 01/10/2019 01/14/2019 01/17/2019 01/22/2019 01/25/2019 01/28/2019 01/28/2019 02/01/2019 02/04/2019 02/07/2019 02/11/2019 02/14/2019 02/18/2019Lab Location Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site LabExternal Lab TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SACQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)190 340 110 240 92 190 340 85--88 91 88 90 240 170HFPO-DA (EPA Method 537 Mod) -- -- -- -- -- -- -- -- -- -- -- -- -- -- --HFPO-DA (Table3+ SOP) ------------------------------Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012) -- -- -- -- -- -- -- --5.2-- -- -- -- -- --Perfluorooctanoic acid (EPA Method 537 Mod) -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Table 3+ Lab SOP (ng/L)PEPA -- -- -- -- -- -- -- -- -- -- <47 <47 <47210<47PFECA-G -- -- -- -- -- -- -- -- -- -- <41 <41 <41 <41 <41PFMOAA --------------------<210<210<210<210<210PFO2HxA -- -- -- -- -- -- -- -- -- -- <81 <81 <81130<81PFO3OA --------------------<58<58<58<58<58PFO4DA --------------------<79<79<79<79<79PMPA -- -- -- -- -- -- -- -- -- -- <570590<570830 680Hydro-EVE Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --EVE Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --PFECA B -- -- -- -- -- -- -- -- -- -- -- -- -- -- --R-EVE ------------------------------PFO5DA --------------------<34<34<34<34<34Byproduct 1 -- -- -- -- -- -- -- -- -- -- <27 <27 <27200 130Byproduct 2 -- -- -- -- -- -- -- -- -- -- <30 <30 <3049 38Byproduct 4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Byproduct 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Byproduct 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --NVHOS -- -- -- -- -- -- -- -- -- -- -- -- -- -- --PES ------------------------------2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol -- -- -- -- -- -- ---- -- -- -- -- -- -- --2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol -- -- -- -- -- -- ------------------N-ethylperfluoro-1-octanesulfonamide -- -- -- -- -- -- -- -- -- -- -- -- -- ----N-methyl perfluoro-1-octanesulfonamide -- -- -- -- -- -- -- -- -- -- -- -- ------EPA Method 537 Mod (ng/L)Perfluorobutanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorodecanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorododecanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluoroheptanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorononanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorohexanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluoropentanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorotetradecanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorotridecanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluoroundecanoic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorobutane Sulfonic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorodecane Sulfonic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluoroheptane sulfonic acid (PFHpS) ------------------------------Perfluorohexane Sulfonic Acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorononanesulfonic acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorooctanesulfonic acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluoropentane sulfonic acid (PFPeS) -- -- -- -- -- -- -- -- -- -- -- -- ------10:2 Fluorotelomer sulfonate -- -- -- -- -- -- -- -- -- -- -- -- -- -- --8:2 Fluorotelomersulfonic acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --6:2 Fluorotelomer sulfonate -- -- -- -- -- -- -- -- -- -- -- -- -- -- --4:2 Fluorotelomersulfonic acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --N-ethyl perfluorooctane sulfonamidoacetic acid -- -- -- -- -- -- -- -- --------------N-methyl perfluorooctane sulfonamidoacetic acid -- -- -- -- -- -- -- ---- -- -- -- -- -- --Perfluorododecane sulfonic acid (PFDoS) -- -- -- -- -- -- -- -- -- -- -- ---- -- --Perfluorohexadecanoic acid (PFHxDA) -- -- -- -- -- -- -- -- -- -- -- -- -- ----Perfluorooctadecanoic acid -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Perfluorooctane Sulfonamide -- -- -- -- -- -- -- -- -- -- -- -- -- -- --ADONA -- -- -- -- -- -- -- -- -- -- -- -- -- -- --NaDONA -- -- -- -- -- -- -- -- -- -- -- -- -- -- --F-53B Major -- -- -- -- -- -- -- -- -- -- -- -- -- -- --F-53B Minor -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Notes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Page 1 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002PM0219-O90218 O90221-Outfall 002 O90225-Outfall 002 90228-outfall 002 O90304 - Outfall 002 O90307 - Outfall 002 O90311 - OUTFALL 002PM0319-O90312 O90314 - Outfall 002 O90318-Outfall 002 O90321-Outfall 002 O90325 - Outfall 002 O90328 - Outfall 002 090401-Outfall 002 090405-Outfall 00202/18/2019 02/18/2019 02/25/2019 02/28/2019 03/04/2019 03/07/2019 03/11/2019 03/12/2019 03/14/2019 03/18/2019 03/21/2019 03/25/2019 03/28/2019 04/01/2019 04/05/2019Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site LabTAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN TAL-DEN, TAL-SACTAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC--130 350 54 290 62 110--49 120 72 87 110 68 350-- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --9-- -- -- -- -- --7.1-- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- <47 <47 <471200 110<47 -- <47 <47 <47 <47 <47 <47 <47-- <41 <41 <41 <41 <41 <41 -- <41 <41 <41 <41 <41 <41 <41-- <210 <210 <2101300 720<210 -- <210 <210 <210 <210 <210 <210 <210-- <81 <81 <81660 300<81 -- <81 <81 <81 <81 <81 <8184-- <58 <58 <58190 62<58 -- <58 <58 <58 <58 <58 <58 <58-- <79 <79 <79130<79 <79 -- <79 <79 <79 <79 <79 <79 <79--580 680<5703600<570 <570 -- <570 <570 <570 <570 <570 <570 <570-- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- <34 <34 <34130<34 <34 -- <34 <34 <34 <34 <34 <34 <34--55 94<271300 170 62-- <2789 47<27370<27230-- <3065<30480 85<30 -- <30 <30 <30 <3031<3040-- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 2 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002SW2019-OUTFALL02-040819O90409 - Outfall 002 O90412 - Outfall 002 O90416-OUTFALL 002 O90418-OUTFALL 002 O90423-Outfall 002 O90423 - Outfall 002 PM0419-O90423 O90426- Outfall 002 O90426 - Outfall 002 O90430-Outfall 002 O90503-Outfall 002 O90503.d O090507-Outfall 002 O90507.d04/08/2019 04/09/2019 04/12/2019 04/16/2019 04/18/2019 04/23/2019 04/23/2019 04/23/2019 04/26/2019 04/26/2019 04/30/2019 05/03/2019 05/03/2019 05/07/2019 05/07/2019Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site LabTAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-SAC TAL-SAC TAL-DEN LANC TAL-DEN TAL-DEN LANC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC ----240 73-- --140-- --59--58 56--190--48-- --140 48-- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- --38--141-- -- -- -- -- -- -- <5.0 -- -- -- -- -- -- --6.1-- -- -- -- -- -- -- -- -- -- -- -- -- --<47 <47 <4779<47 --51-- -- <20 <47 <478<4712<41 <41 <41 <41 <41 -- <2.0 -- -- <2.0 <41 <410.5<410.5<210 <210 <210 <210 <210 --120-- --70<210 <21022<21028<81 <81 <81 <81 <81 --50-- --25<81 <8128<8143<58 <58 <58 <58 <58 --14-- --6.3<58 <587.7<5816<79 <79 <79 <79 <79 --9.3-- --4<79 <7912<7912<570 <570 <570 <570 <570 --92-- --27<570 <57012 690 25<28------------------<28<282.7<284.7<24------------------<24<242.1<247.8<60------------------<60<600.3<600.3<70------------------<70<701.8<701.4<34 <34 <34 <34 <34 --7.4-- --2.4<3439 11<3412<27200<27140<27 --69-- --6.3<27 <277.7 560 427<3040<3030<30 --27-- --7.4<30 <3012 46 39<160 -- -- -- -- -- -- -- -- -- <160 <1603<1609.5<58------------------<58<585.5 93 9.6<15------------------<15<151.7<152.8<54------------------<54<544.9<5429<46------------------<46<460.9<461.1<60----------------------------<110 -- -- -- -- -- -- -- -- -- -- -- -- -- --<37----------------------------<35----------------------------4.6-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --4.7-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --5.4-- -- -- -- -- -- -- -- -- -- -- -- -- --5.7-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --2-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --3-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --7.6-- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<20----------------------------<20----------------------------<20----------------------------<20----------------------------<20----------------------------<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.1 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.1 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --<2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 3 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002O90509-Outfall 002 O90509.d O90514-Outfall 002 O90514.d PM0519-O90516 O90517- Outfall 002 O90517.d DSTW-OUTFALL 002-052019 O90521.d O90524.d O90528 - Outfall 002 O90528.d FAY-DSTW-OUTFALL002-053019 O90531 - Outfall 002 O90531.d05/09/2019 05/09/2019 05/14/2019 05/14/2019 05/16/2019 05/17/2019 05/17/2019 05/20/2019 05/21/2019 05/24/2019 05/28/2019 05/28/2019 05/30/2019 05/31/2019 05/31/2019Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab Off-Site Lab On-Site LabTAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN TAL-DEN, TAL-SAC -- TAL-SAC -- -- TAL-DEN, TAL-SAC -- TAL-SAC TAL-DEN, TAL-SAC --290--83-- --47-- -- -- --76-- --68---- -- -- -- -- -- -- -- -- -- -- -- -- -- ----171--47-- --47--44 33--51-- --37-- -- -- -- <5.0 -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --<475.2<475.8-- <474.9<473.2<23 <477.3<47 <474.2<410.6<410.4-- <41 <6.2 <41 <6.20.1<410.3<41 <41 <6.2<21027<21026-- <21032<21016 461 5500 1306 2500 2100 524<8126<8132-- <8139<8132 324 1400 905 640 580 398<585.7<585.8-- <5817<587.6 130 610 378 320 270 191<794.4<795.4-- <7916<797.8 66 340 218 220 180 127<57010<57012-- <57015<57013 13<57027 640 680 16<283.7<281.4-- <281.5<281.7 5.4<2817<28 <289.6<248.1<244-- <241<241.3 1.7<246.5<24 <246.3<600.3<600.2-- <60 <3.5 <603.5 3.5<600.1<60 <603.5<700.9<700.6-- <701.4<700.9 0.8<700.5<70 <700.6<343773.8--72 17<345.8 20 150 88 140 130 62<2718 27 24-- <275.9<2718 8.9<2718 30 29 18<3020<3016-- <3013<3019 47 220 177 190 170 133<16016 200 37-- <1602.4<1603.6 4.5<16018 230<16018<585.2<584.3-- <582<581.8 12 1100 64 1300 J 950 75<154.8<152.2-- <151.7<151.8 2.1<154.7<15 <153.7<547<5410-- <547.8<5410 41 160 132 100<5479<460.9<460.9-- <460.7<4611<460.9<46 <460.8-- -- -- -- -- -- -- <60 -- -- -- -- <60 -- ---- -- -- -- -- -- -- <110 -- -- -- -- <110 -- ---- -- -- -- -- -- -- <37 UJ -- -- -- -- <37 -- ---- -- -- -- -- -- -- <35 UJ -- -- -- -- <35 -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 4 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002O90604-Outfall 002 O90604.d O90607-Outfall 002 O90607.d O90611 - Outfall 002 PM0619-O90612 O90614 - Outfall 002 O90614.d O90618 O90618.d O90620 O90620.d O90625 O90625.d O9062706/04/2019 06/04/2019 06/07/2019 06/07/2019 06/11/2019 06/12/2019 06/14/2019 06/14/2019 06/18/2019 06/18/2019 06/20/2019 06/20/2019 06/25/2019 06/25/2019 06/28/2019Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site LabTAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC TAL-DEN TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC240--110--250--72--27--33--44--28-- -- -- -- -- -- -- -- -- -- -- -- -- -- ----165--69-- -- --62--14--19--33---- -- -- -- --11-- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --28 9.1 25 4.7<47 -- <479.3<47 <23 <47 <23 <47 <23 <47<2.00.2<2.0 <6.2 <41 -- <410.9<410.6<410.7<410.6<411100 241 570 120<210 -- <21078<21011<21010<2101.8<210320 211 170 124 150-- <8144<8128<8124<8127<81140 95 79 51<58 -- <5820<589.9<588.3<589.5<58110 79 73 49<79 -- <7923<7911<797.1<7910<7971 24 70 15 720-- <5706<570 <4.8 <570 <4.8 <570 <4.8 <57010 7.9 6.8 6.8<28 -- <283.3<280.6<280.4<281.7<2827 17 11 7.8<24 -- <2413<241.9<242.9<244.9<24<2.00.1<2.0 <3.5 <60 -- <60 <3.5 <60 <3.5 <60 <3.5 <60 <3.5 <6068 1.6 47 1.2<70 -- <700.1<700.3<70 <11 <700.2<7069 50 62 45 70--78 35<3421<3417 72 16 55420 321 93 70 160--54 40<278.8<2712 63 43 100200 159 170 126 160--160 111 130 76 96 70 110 80 110330 26 320 17 180-- <16014<1600.4<1602.1<160 <7.3 <1601500 59 1900 57 500--460 95 270 12 190 12 220 11 2304.6 4.6 3.9 3.3<15 -- <153.5<153<152.9<152.5<1585 68 45 34<54 -- <5417<5411<548.4<5411<54<2.00.8<2.01<46 -- <460.6<460.6<460.6<460.6<46-- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 5 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002 Outfall 002River Intake River Intake River IntakeO90628.d O90701 O90701.d O90703 O90703.d O90708 O90708.d O90712 O90712.d O90716 O90716.d O90719 R90102 R90108 R9011806/28/2019 07/01/2019 07/01/2019 07/03/2019 07/03/2019 07/08/2019 07/08/2019 07/12/2019 07/12/2019 07/16/2019 07/16/2019 07/19/2019 01/02/2019 01/08/2019 01/18/2019On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site Lab Off-Site Lab On-Site LabOff-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab-- TAL-DEN, TAL-SAC -- TAL-DEN, TAL-SAC -- TAL-DEN -- TAL-DEN -- TAL-DEN-- TAL-DEN TAL-DEN TAL-DEN TAL-DEN--33--42--320--68--67--170 10<1082-- -- -- -- -- -- -- -- -- -- -- -- -- -- --13--23--22--255--40--46-- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --<23 <47 <23 <47 <23 --1-- <23 -- <23 -- -- -- --0.6<410.8<410.7--0.7--0.6--0.7-- -- -- --5.8<21012<2106.8--15--3.2--<11--------17<8130<8128--81--27--15-- -- -- --5.4<588.9<586.5--23--5.5--2.6-- -- -- --<8.2 <799.4<796.9--14--7.1--3.3-- -- -- --<4.81100<4.8820<4.8 --13-- <4.8 -- <4.8 -- -- -- --0.5<280.9<280.6--0.6--1.9--0.4-- -- -- --5<242.9<247.7--0.2--3.7--3.7-- -- -- --<3.5 <60 <3.5 <60 <3.5 -- <3.5 -- <3.5 -- <3.5 -- -- -- --<11 <700.1<700.1--0.9-- <11 -- <11 -- -- -- --12<3417<347.5--16--6.3--5.6-- -- -- --76 27 10 43 30--83--23--14-- -- -- --76 110 67 110 65--114--60--48-- -- -- --0.3<160 <7.3 <1601.5--5.6-- <7.3 --0.6-- -- -- --9.7 140 8.4 130 9.2--15--6.8--7.5-- -- -- --2.4<152.6<152--3.1--2.3--1.3-- -- -- --9.6<541.4<5413--31--9.8--1.8-- -- -- --0.6<460.5<460.6--0.6--0.6--0.5-- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 6 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. River Intake River Intake River Intake River Intake River Intake River Intake River Intake River IntakeRiver Intake River Intake River Intake River Intake River Intake River Intake River IntakeR90125 PM0119-R90128 R90128 R90207 R90214 PM0219-R90218 R90218 R90225 R90306 PM0319-R90312 R90312 R90320 R90327 R90404 SW2019-INTAKE-04081901/25/2019 01/28/2019 01/28/2019 02/07/2019 02/14/2019 02/18/2019 02/18/2019 02/25/2019 03/06/2019 03/12/2019 03/12/2019 03/20/2019 03/27/2019 04/04/2019 04/08/2019Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site LabTAL-DEN TAL-DEN TAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-SAC11--15 19 12--10 11 21--10 16 20 19---- -- -- -- -- -- -- -- -- -- -- -- -- --19-- -- -- -- -- -- -- -- -- -- -- -- -- -- ----5.2-- -- --7.8-- -- --7.7-- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- --4.6-- -- -- <47 <47 -- <47 <47200-- <47 <47 <47 <47 <47-- -- -- <41 <41 -- <41 <41 <41 -- <41 <41 <41 <41 <41-- -- -- <210 <210 -- <210 <210 <210 -- <210 <210 <210 <210 <210-- -- -- <81 <81 -- <81 <81 <81 -- <81 <81 <81 <81 <81-- -- -- <58 <58 -- <58 <58 <58 -- <58 <58 <58 <58 <58-- -- -- <79 <79 -- <79 <79 <79 -- <79 <79 <79 <79 <79-- -- -- <570 <570 -- <570 <5701100-- <570 <570 <570 <570 <570-- -- -- -- -- -- -- -- -- -- -- -- -- -- <28-- -- -- -- -- -- -- -- -- -- -- -- -- -- <24-- -- -- -- -- -- -- -- -- -- -- -- -- -- <60-- -- -- -- -- -- -- -- -- -- -- -- -- -- <70-- -- -- <34 <34 -- <34 <34 <34 -- <34 <34 <34 <34 <34-- -- -- <27 <27 -- <27 <27 <27 -- <27 <27 <27 <27 <27-- -- -- <30 <30 -- <30 <30 <30 -- <30 <30 <30 <30 <30-- -- -- -- -- -- -- -- -- -- -- -- -- -- <160-- -- -- -- -- -- -- -- -- -- -- -- -- -- <58-- -- -- -- -- -- -- -- -- -- -- -- -- -- <15-- -- -- -- -- -- -- -- -- -- -- -- -- -- <54-- -- -- -- -- -- -- -- -- -- -- -- -- -- <46-- -- -- -- -- -- -- -- -- -- -- -- -- -- <60-- -- -- -- -- -- -- -- -- -- -- -- -- -- <110-- -- -- -- -- -- -- -- -- -- -- -- -- -- <37-- -- -- -- -- -- -- -- -- -- -- -- -- -- <35-- -- -- -- -- -- -- -- -- -- -- -- -- --3.8-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- --4.4-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- --5-- -- -- -- -- -- -- -- -- -- -- -- -- --5-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- --2-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- --2.9-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- --7.9-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <20-- -- -- -- -- -- -- -- -- -- -- -- -- -- <20-- -- -- -- -- -- -- -- -- -- -- -- -- -- <20-- -- -- -- -- -- -- -- -- -- -- -- -- -- <20-- -- -- -- -- -- -- -- -- -- -- -- -- -- <20-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.1-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.1-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0-- -- -- -- -- -- -- -- -- -- -- -- -- -- <2.0Page 7 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. River Intake River Intake River Intake River Intake River Intake River Intake River Intake River IntakeRiver Intake River Intake River Intake River Intake River Intake River Intake River IntakeR90410 R90415 PM0419-R90423 R90423 R90429 R90508 PM0519-R90516 R90516 R90529 R90606 R90606 R90612 R90619 R90627 R9070304/10/2019 04/15/2019 04/23/2019 04/23/2019 04/29/2019 05/08/2019 05/16/2019 05/16/2019 05/29/2019 06/06/2019 06/06/2019 06/12/2019 06/19/2019 06/27/2019 07/03/2019Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site Lab Off-Site LabTAL-DEN, TAL-SAC TAL-SAC TAL-DEN TAL-DEN, LANC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SAC TAL-DEN, TAL-SACField Duplicate<10 -- -- <1028 13--10<10150 150<10 <10 <1022-- <4.0 -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- <5.0 -- -- -- <5.0 -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --<47 <47 -- <20 <47 <47 -- <47 <4765 66<47 <47 <47 <47<41 <41 -- <2.0 <41 <41 -- <41 <41 <4.1 <4.1 <41 <41 <41 <41<210 <210 --9.5<210 <210 -- <210 <21014000 14000<210 <210 <210 <210<81 <81 --6.1<81 <81 -- <81 <813600 3500<81 <81 <81 <81<58 <58 -- <2.0 <58 <58 -- <58 <581900 1900<58 <58 <58 <58<79 <79 -- <2.0 <79 <79 -- <79 <792100 2000<79 <79 <79 <79<570 <570 --13<570680-- <570570 140 140<570 <570 <570890-- -- -- -- <28 <28 -- <28 <28120 120<28 <28 <28 <28-- -- -- -- <24 <24 -- <24 <243.1 3.4<24 <24 <24 <24-- -- -- -- <60 <60 -- <60 <60 <6.0 <6.0 <60 <60 <60 <60-- -- -- -- <70 <70 -- <70 <70310 310<70 <70 <70 <70<34 <34 -- <2.037<34 -- <34 <342000 1900<34 <3442<34<27 <27 -- <2.0 <27 <27 -- <27 <2786 85<27 <27 <27 <27<30 <30 -- <2.0 <30 <30 -- <30 <304900 4800<30 <30 <30 <30-- -- -- -- <160 <160 -- <160 <1603100 3100<160 <160 <160 <160-- -- -- -- <58 <58 -- <58 <5817000 17000<58 <58 <58 <58-- -- -- -- <15 <15 -- <15 <15100 100<15 <15 <15 <15-- -- -- -- <54 <54 -- <54 <54900 900<54 <54 <54 <54-- -- -- -- <46 <46 -- <46 <46 <4.6 <4.6 <46 <46 <46 <46-- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- -- -- -- -- -- -- -- -- --Page 8 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019
TABLE 1RIVER INTAKE AND OUTFALL 002 - 2019 PFAS CONCENTRATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.NC License No.: C-3500Location IDField Sample IDDate SampledLab LocationExternal LabQA/QCHFPO-DA (ng/L)HFPO-DA (EPA Method 8321A)HFPO-DA (EPA Method 537 Mod)HFPO-DA (Table3+ SOP)Perfluorooctanoic acid (ng/L)Perfluorooctanoic acid (DV-LC-0012)Perfluorooctanoic acid (EPA Method 537 Mod)Table 3+ Lab SOP (ng/L)PEPAPFECA-GPFMOAAPFO2HxAPFO3OAPFO4DAPMPAHydro-EVE AcidEVE AcidPFECA BR-EVEPFO5DAByproduct 1Byproduct 2Byproduct 4Byproduct 5Byproduct 6NVHOSPES2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol2-(N-methyl perfluoro-1-octanesulfonamido)-ethanolN-ethylperfluoro-1-octanesulfonamideN-methyl perfluoro-1-octanesulfonamideEPA Method 537 Mod (ng/L)Perfluorobutanoic AcidPerfluorodecanoic AcidPerfluorododecanoic AcidPerfluoroheptanoic AcidPerfluorononanoic AcidPerfluorohexanoic AcidPerfluoropentanoic AcidPerfluorotetradecanoic AcidPerfluorotridecanoic AcidPerfluoroundecanoic AcidPerfluorobutane Sulfonic AcidPerfluorodecane Sulfonic AcidPerfluoroheptane sulfonic acid (PFHpS)Perfluorohexane Sulfonic AcidPerfluorononanesulfonic acidPerfluorooctanesulfonic acidPerfluoropentane sulfonic acid (PFPeS)10:2 Fluorotelomer sulfonate8:2 Fluorotelomersulfonic acid6:2 Fluorotelomer sulfonate4:2 Fluorotelomersulfonic acidN-ethyl perfluorooctane sulfonamidoacetic acidN-methyl perfluorooctane sulfonamidoacetic acidPerfluorododecane sulfonic acid (PFDoS)Perfluorohexadecanoic acid (PFHxDA)Perfluorooctadecanoic acidPerfluorooctane SulfonamideADONANaDONAF-53B MajorF-53B MinorNotes:Bold - Analyte detected above associated reporting limitEPA - Environmental Protection AgencyJ - Analyte detected. Reported value may not be accurateor precise.LANC - Lancaster Laboratoriesng/L - nanograms per literQA/QC - Quality assurance/ quality controlSOP - standard operating procedureTAL-DEN - TestAmerica Laboratories (Denver, CO)TAL-SAC - TestAmerica Laboratories (Sacramento, CA)UJ – Analyte not detected. Reporting limit may not be accurate or precise.-- - No data reported< - Analyte not detected above associated reporting limit. River Intake River IntakeR90710 R9071807/10/2019 07/18/2019Off-Site Lab Off-Site LabTAL-DEN TAL-DEN14<10-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --Page 9 of 9PRELIMINARY - SOME ANALYTICAL RESULTS ARE NOT YET VALIDATED August 2019