2022.02.01_CCO.p18_ChemoursFrameworkAssessLCFRcounties

Framework to Assess Table 3+ PFAS in New
Hanover, Brunswick, Columbus, and Pender
Counties
Chemours Fayetteville Works

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

Prepared by
Geosyntec Consultants of NC, PC
2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607

Project Number TR0795A
February 1, 2022

TR0795A - Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
ES-1 February 2022
EXECUTIVE SUMMARY
This document was prepared by Geosyntec Consultants of NC, P.C. (Geosyntec) for The
Chemours Company FC, LLC (Chemours) to provide a framework to assess Table 3+ per- and
polyfluoroalkyl substances (PFAS)1 in soil and groundwater in New Hanover, Brunswick,
Columbus, and Pender Counties (the counties) of North Carolina. This framework has been
prepared in response to a letter sent to Chemours by the North Carolina Department of
Environmental Quality (NCDEQ) on 3 November 2021 (NCDEQ 2021). The letter requested
Chemours perform an assessment of Table 3+ PFAS that meets the requirements of 15A North
Carolina Administrative Code (NCAC) 2L .0106(g) (i.e., 2L rules) and paragraph 18 of the
February 25, 2019, Consent Order (CO) amongst Chemours, NCDEQ, and Cape Fear River
Watch. The assessment will characterize the following:
• The source and cause of contamination.
• Any imminent hazards to public health and safety and any actions taken to mitigate them.
• Receptors and significant exposure pathways.
• The horizontal and vertical extent of soil and groundwater contamination impact and
significant factors affecting contaminant transport.
• Geological and hydrogeological features influencing the movement, chemical, and
physical character of the contaminants.
In addition to the assessment request, NCDEQ also requested Chemours provide a drinking water
plan to identify and provide replacement drinking water to qualifying parties. Geosyntec’s 2022
document, Interim Four Counties Sampling and Drinking Water Plan (New Hanover, Brunswick,
Columbus, and Pender Counties), separately submitted by Chemours, includes groundwater
sampling from private wells in these counties. The results from both the assessment proposed
herein and from private well sampling will inform each other.
The soil and groundwater assessment will start with data gathering from the counties to guide
further implementation of the assessment. This step is critical; the counties encompass an area of
over 2,900 square miles, and little is currently known about either the potential distribution of
Table 3+ PFAS in the counties or the potential source and cause of Table 3+ PFAS within the
counties. Subsequently, sampling work plans will be prepared and the results from both programs
interpreted to prepare a soil and groundwater assessment report.
To initiate the assessment program Geosyntec has assessed PFAS data presently available from
NCDEQ from the counties, developed potential hypotheses about the potential source and cause
of Table 3+ PFAS presence along with conceptual plans to evaluate these hypotheses, and
submitted records requests to ten different entities (NCDEQ, counties, utilities, and towns).

1 Table 3+ PFAS are often attributed to operations at the Chemours Fayetteville Works Site (Geosyntec 2021a).

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On November 3, 2021, NCDEQ posted to their website2 PFAS data from groundwater samples
collected from NCDEQ and Cape Fear Public Utility Authority (CFPUA) non-private wells
between 2019 and 2021. These data were supplemented with additional PFAS data from
groundwater samples collected from different wells, including public supply and emergency wells,
provided to Chemours on behalf of NCDEQ via email on December 5, 2021. Assessing the 395
sample results provided by NCDEQ (11 from private wells and 384 from non-private and
monitoring samples between 2019 and 2021 from upwards of 100 wells) indicate that both Method
537 PFAS and Table 3+ PFAS were detected in New Hanover County. PFAS compounds analyzed
by Method 537, many of which are not associated with the facility – for example
Perfluorooctanesulfonic acid (PFOS) – were detected in samples more frequently than Table 3+
PFAS.
The three retained source and cause hypotheses are:
1. Leaking potable water distribution pipes and sanitary sewers that convey water from
the Cape Fear River.
2. Direct application and injection to downstream areas by Cape Fear River water users.
3. Aquifer recharge by the Cape Fear River.
Sampling plans for each of these hypotheses will be developed using information collected during
the data gathering stage. Geosyntec has begun compiling some of this information from publicly
available sources and requested other information from NCDEQ, New Hanover County,
Brunswick County, Columbus County, Pender County, Town of Carolina Beach, Town of
Wrightsville Beach, Lower Cape Fear Water and Sewer Authority (LCFWASA), CFPUA, and
Aqua of North Carolina, Inc. (Aqua of NC, Inc.)
In addition to evaluating the source and cause aspect of the assessment, the other assessment steps
will be met through a combination of information from public sources such as the United States
Geological Survey (USGS) report and North Carolina public records, private well sampling results
from the interim sampling and drinking water program, sampling of NCDEQ and USGS wells,
and previously established fate and transport properties of Table 3+ PFAS.
Upon completing the stages outlined in this framework, Geosyntec will prepare a Soil and
Groundwater Assessment Report to submit to NCDEQ. Progress towards completing this
assessment will in part be governed by the responsiveness of various parties to records requests
and subsequent access requests for investigative locations and potentially other limiting factors.

2 https://deq.nc.gov/dwr-gwr-lcfr-pfas-data-2019-2021

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TABLE OF CONTENTS
Executive Summary ......................................................................................................................1
1. Introduction .........................................................................................................................1
1.1 Framework Objectives and Assessment Sequence .................................................... 1
1.2 Framework Organization ........................................................................................... 2
2. Assessment Outcomes and Approaches ..............................................................................4
2.1 Source and Cause of Contamination .......................................................................... 4
2.2 Imminent Hazards ...................................................................................................... 4
2.3 Receptor and Exposure Pathways .............................................................................. 4
2.4 Extent of Soil and Groundwater Contamination ........................................................ 4
2.5 Geological and Hydrogeological Features ................................................................. 5
3. Source and Cause Hypotheses and Assessment ..................................................................6
3.1 Available Table 3+ Data in the Four Counties .......................................................... 6
3.2 Source and Cause Hypotheses ................................................................................. 11
3.2.1 Hypothesis #1: Leaks in Water Distribution and Sanitary Sewer Lines .. 11
3.2.2 Hypothesis #2: Direct Application or Injection to Downstream Areas by
Cape Fear River Water Users ................................................................... 14
3.2.3 Hypothesis #3: Aquifer Recharge by Cape Fear River ............................ 15
3.2.4 Hypothesis #4: Aerial Transport from Facility ........................................ 15
3.2.5 Hypothesis #5: Groundwater Transport from Facility ............................. 16
4. Summary, Implementation and Reporting.........................................................................17
5. References .........................................................................................................................18

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LIST OF TABLES
Table 1 Summary of NCDEQ Private and Public Well Dataset ........................................7
Table 2 Summary of PFMOAA Data from NCDEQ Private and Public Well Dataset .....7
Table 3 Summary of Table 3+ PFAS Detection in Cape Fear River Surface Water .........8
Table 4 List of Table 3+ PFAS Groundwater Source and Cause Hypotheses .................11
Table 5 Summary of Data Requested to Complete Assessment of Water
Distribution and Sanitary Sewer System ............................................................13
Table 6 Retained Source and Cause Hypotheses to be Assessed ....................................17
LIST OF FIGURES
Figure 1 Framework for Soil and Groundwater Assessment Program
Figure 2 New Hanover County Private Well Sampling Locations from NCDEQ
November 3, 2021 Dataset
Figure 3 New Hanover County Non-Private Well Sampling Locations from NCDEQ
November 3, 2021 Dataset
LIST OF APPENDICES
Appendix A Public Records Requests
Appendix B PFAS Results in Groundwater from NCDEQ Sampling of Private Wells in New
Hanover County (2020)
Appendix C PFAS Results in Groundwater from NCDEQ Sampling of Non-Private Wells in
New Hanover County (2019-2021)
Appendix D Additional Potential Analytes for Analysis
Appendix E Information Gathered from Public Sources

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ACRONYMS AND ABBREVIATIONS
ASR Aquifer Storage and Recovery
CFPUA Cape Fear Public Utility Authority
HFPO-DA hexafluoropropylene oxide dimer acid
LCFWASA Lower Cape Fear Water & Sewer Authority
NCAC North Carolina Administrative Code
NCDEQ North Carolina Department of Environmental Quality
NC DHHS North Carolina Department of Health and Human Services
ng/L nanograms per liter
PEPA perfluoroethoxypropyl carboxylic acid
PFAS per- and polyfluoroalkyl substances
PFMOAA perfluoro-2-methoxyacetic acid
PFO2HxA perfluoro(3,5-dioxahexanoic) acid
PMPA perfluoromethoxypropyl carboxylic acid
USEPA United States Environmental Protection Agency
USGS United States Geological Survey
WWTP wastewater treatment plant

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
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1. INTRODUCTION
This document was prepared by Geosyntec Consultants of NC, P.C. (Geosyntec) for The
Chemours Company FC, LLC (Chemours) to provide a framework to undertake an assessment of
Table 3+ per- and polyfluoroalkyl substances (PFAS) in soil and groundwater in New Hanover,
Brunswick, Columbus, and Pender Counties (the counties) of North Carolina. This framework has
been prepared in response to a letter sent to Chemours by the North Carolina Department of
Environmental Quality (NCDEQ) on 3 November 2021 (NCDEQ 2021). The letter indicated the
presence of Table 3+ PFAS in groundwater based on private and non-private well sample results
collected between 2019 – 2021 from a dataset posted to the NCDEQ website on November 3,
2021. The letter also requested Chemours perform an assessment of Table 3+ PFAS that meets the
requirements of 15A North Carolina Administrative Code (NCAC) 2L .0106(g) (i.e., 2L rules) and
paragraph 18 of the February 25, 2019 Consent Order (CO) amongst Chemours, NCDEQ and Cape
Fear River Watch. The assessment will characterize the following:
• The source and cause of contamination.
• Any imminent hazards to public health and safety and any actions taken to mitigate them.
• Receptors and significant exposure pathways.
• The horizontal and vertical extent of soil and groundwater contamination impact and
significant factors affecting contaminant transport.
• Geological and hydrogeological features influencing the movement, chemical, and
physical character of the contaminants.
In addition to the assessment request, NCDEQ also requested Chemours provide a drinking water
plan to identify and provide replacement drinking water to qualifying parties. Chemours has
separately submitted an Interim Four Counties Sampling and Drinking Water Plan (New Hanover,
Brunswick, Columbus and Pender Counties) (Geosyntec, 2022) which includes the sampling of
groundwater from private wells in the counties. The results from both the assessment proposed
herein and from private well sampling will be used to prepare a soil and groundwater assessment
report.
1.1 Framework Objectives and Assessment Sequence
The objective of the framework set forth in this document is to complete a soil and groundwater
assessment of Table 3+ PFAS in the counties that follows the assessment requirements of the 2L
rules. This framework includes interlinkages to the interim sampling and drinking water program
since both programs will sample groundwater in the four counties. Therefore, the two programs
will inform each other. The overarching framework for the assessment program and the point of
information convergence with the interim sampling and drinking water program is shown below
in Figure 1.

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
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Figure 1 Framework for Soil and Groundwater Assessment Program.
The soil and groundwater assessment framework will start with a data gathering step to guide
implementation of the assessment program. This step is critical; the counties encompass an area
of over 2,900 square miles, and little is presently known about either the potential distribution of
Table 3+ PFAS in the counties or the potential source and cause of Table 3+ PFAS within the
counties. The data gathering step will support developing an initial conceptual model for the source
and cause of the distribution of Table 3+ PFAS within the counties which will then enable the
development of specific sampling plans from the conceptual plans presented in this framework.
Then after the implementation of the sampling plans the results from both the soil and groundwater
assessment and the interim sampling and drinking water program will be evaluated and interpreted
to prepare a soil and groundwater assessment report.
1.2 Framework Organization
The remainder of this framework is organized as follows:
• Section 2: Assessment Outcomes and Approaches – which describes how the five
primary requirements of the 2L Rules will be fulfilled.

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• Section 3: Source and Cause Hypotheses and Assessment – which describes hypotheses
for the presence of Table 3+ PFAS in the counties, conceptual plans to test each hypothesis
and compile a list of data and access needs to prepare specific sampling work plans.
• Section 4: Summary, Implementation and Reporting – which summarizes the content
of this framework and outlines the schedule for the initial implementation steps.

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2. ASSESSMENT OUTCOMES AND APPROACHES
The 2L rules list five requirements for conducting a soil and groundwater assessment. This section
provides an overview of how each requirement will be met through this framework.
2.1 Source and Cause of Contamination
The assessment must include an analysis of “the source and cause of contamination”. At present,
there is little information regarding the potential source and cause of Table 3+ PFAS within the
counties. Section 3 describes potential hypotheses for the source and cause of Table 3+ PFAS in
the counties and then presents conceptual investigation scopes to consider each hypothesis. This
framework then describes information needed to prepare specific sampling work plans to consider
these hypotheses.
2.2 Imminent Hazards
The assessment must include an analysis of, “any imminent hazards to public health and safety
and any actions taken to mitigate them”. Imminent hazards will be identified through the source
and cause of contamination assessment and the interim sampling and drinking water program. The
concentrations of HFPO-DA in the private well data provided by NCDEQ is lower than the current
North Carolina Department of Health and Human Services (NC DHHS) health goal of 140
nanograms per liter (ng/L; NC DHHS, 2017).
2.3 Receptor and Exposure Pathways
The assessment must include an analysis of, “receptors (to include as potential receptors drinking
water wells and surface waters) and significant exposure pathways”. Amongst other sources of
information, potential receptors may be identified by reviewing:
1. Private well receptors identified through the Interim Four Counties and Drinking Water
Plan (New Hanover, Brunswick, Columbus and Pender Counties) (Geosyntec, 2022).
Well data from NC OneMap GeoSpatial Portal to identify public water supply wells.
2. Data on North Carolina wellhead protection areas from NCDEQ and using data on
usage of public water supplies to identify wellhead protection areas.
3. Surface water data from the United States Geological Survey (USGS) National
Hydrography Dataset to identify surface water bodies.
In addition to identifying receptors, significant exposure pathways will be identified by assessing
the conceptual model developed from the assessment of the potential sources and causes of
Table 3+ PFAS.
2.4 Extent of Soil and Groundwater Contamination
The assessment must include an analysis of, “the horizontal and vertical extent of soil and
groundwater contamination and all significant factors affecting contaminant transport”. The extent

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of Table 3+ PFAS in soil and groundwater will be assessed through three lines of evidence. First,
soil and groundwater samples collected during the source and cause assessment, second through
private well sampling results from the interim sampling and drinking water program, and third
from sampling of select NCDEQ and USGS groundwater monitoring wells in the counties. The
significant factors affecting transport will be identified based on prior established fate and transport
properties of Table 3+ PFAS, as well as hydrogeologic conditions in the counties.
2.5 Geological and Hydrogeological Features
The assessment must include an analysis of the “geological and hydrogeological features
influencing the movement, chemical, and physical character of the contaminants”. The geological
and hydrogeological features controlling the movement of groundwater potentially containing
Table 3+ PFAS will be described using information gathered from public sources and the results
of the source and cause hypothesis testing investigation. Information from public sources may
include regional geology and hydrogeology studies authored by the USGS, data from NCDEQ
monitoring wells, and other data gathered from the counties and water utilities in the counties. The
geological and hydrogeological conceptual model will then be examined alongside the known fate
and transport properties of Table 3+ PFAS to analyze how these features control the movement,
chemical, and physical character of Table 3+ PFAS.

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3. SOURCE AND CAUSE HYPOTHESES AND ASSESSMENT
Geosyntec has developed five hypotheses that may potentially explain the presence of Table 3+
PFAS in the counties as identified by the groundwater sampling results provided by NCDEQ to
date. Further data, which will aid in the refinement of these hypotheses or potentially influence
new hypotheses, have been requested from the counties, various utility operators, and NCDEQ.
These requested data are described in more detail in the following sub-sections and in Appendix A.
This section reviews the existing NCDEQ Table 3+ PFAS groundwater data in the counties and
then describes each of the hypotheses, whether each hypothesis is retained for assessment, and
how the retained hypotheses will be evaluated.
3.1 Available Table 3+ Data in the Four Counties
NCDEQ provided PFAS analytical results from 11 private wells (Appendix B and Figure 2) and
from 384 samples collected between 2019 and 2022 from upwards of 100 non-private wells
including public supply, service, and emergency wells in New Hanover County (Appendix C and
Figure 3). Data from a single well in Brunswick County was provided. No PFAS analytical data
were provided from wells in Pender or Columbus County. No PFAS analytical data were provided
for soil from any of the counties.
The PFAS groundwater analytical data from private and non-private wells in New Hanover County
contained both Method 537 PFAS and Table 3+ PFAS. Many Method 537 PFAS are not associated
with the facility (e.g., PFOS3) while Table 3+ PFAS are often attributed to operations at the
facility. In both the private and non-private wells, the Method 537 PFAS were detected at a
frequency similar to or greater than Table 3+ PFAS, indicating that other non-Chemours sources
are also likely contributing to groundwater PFAS detections.
Total Table 3+ PFAS4 concentrations in private wells ranged from concentrations below detection
limits at three sampling locations to a maximum value of 370 ng/L at one location (Table 1). Of
the 194 unique sample identification codes in the non-private well datasets provided by NCDEQ,
109 contained concentrations of Total Table 3+ PFAS below detection limits. Detectable
concentrations of Total Table 3+ PFAS in non-private wells ranged from 1.2 ng/L to 17,000 ng/L
(Appendix C).

3 PFOS: perfluorooctanesulfonic acid
4 As reported in the Matrix Interference During Analysis of Table 3+ Compounds memorandum (Geosyntec, 2020), matrix
interference studies conducted by the analytical laboratory (TestAmerica, Sacramento) have shown that the quantitation of
three compounds (R-PSDA, Hydrolyzed PSDA, and R-EVE) is inaccurate due to interferences by the sample matrix in both
groundwater and surface water. Total Table 3+ PFAS concentrations are calculated and presented two ways in this report: (i)
summing over 17 of the 20 Table 3+ compounds “Total Table 3+ (17 compounds)”, i.e., excluding results of R-PSDA,
Hydrolyzed PSDA, and R-EVE, and (ii) summing over 20 of the Table 3+ compounds “Total Table 3+ (20 compounds)”

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Table 1 Summary of NCDEQ Private and Non-Private Well Dataset
Source of Data
Number of Samples with
Detections of Table 3+
PFAS
Number of Samples
with Detections of
Method 537 PFAS
Private wells 8/11 9/11
Non-private wells 150/384 218/384
Notes:
Data used to populate this table were provided by NCDEQ. The NCDEQ dataset included PFAS analytical results
from 11 groundwater samples from private wells and 384 samples from non-private wells.
Method 537 PFAS represent compounds not specifically attributed to the Facility and may represent
contributions from other PFAS sources.
For the 395 private and non-private wells sample data posted by NCDEQ with Table 3+ PFAS
detections, PFMOAA is the most commonly detected Table 3+ compound, found in 143 of 158
samples with Table 3+ PFAS detections. PFMOAA is also the highest concentration Table 3+
PFAS in 134 of the 143 samples where PFMOAA was detected (Table 2). This indicates a
connection with the permitted discharges from the Facility to the Cape Fear River between 1979
and 2017, which contained PFAS and for which the process water signature is associated with
higher PFMOAA concentrations (Geosyntec, 2021a). This, in turn, suggests that Cape Fear River
water withdrawals and usage may potentially be responsible for these NCDEQ sampling
detections, as is explored in the subsequent hypotheses.
Table 2 Summary of PFMOAA Data from NCDEQ Private and Non-Private Well Dataset
Source of Data
Number of
Samples with
Table 3+ PFAS
Detections
Number of Samples
with PFMOAA
Detections
Number of Samples where
PFMOAA was the Highest
Concentration Table 3+ PFAS
compound
Private wells 8/11 8/11 8/11
Non-private wells 150/384 135/384 126/384
Notes:
Data used to populate this table were provided by NCDEQ. The NCDEQ dataset included PFAS analytical results
from 11 groundwater samples from private wells and 384 groundwater samples from non-private wells.
The Cape Fear River, which is bordered by the counties, also contains Table 3+ PFAS. The
pathways described in the mass loading model site conceptual model contributing the most
Table 3+ PFAS mass loading (i.e., groundwater, seeps, etc.) to the river have process water
signatures (Geosyntec 2019). Data from Cape Fear River sampling locations downstream of the
Site from 2019 through 2021 show that PFMOAA is the most commonly detected Table 3+ PFAS
compounds as shown in Table 3.

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Table 3 Summary of Table 3+ PFAS Detection in Cape Fear River Surface Water
Description of Analysis Occurrence in
2019 Samples
Occurrence in
2020 Samples
Occurrence in
2021 Samples
Total Number of Samples Collected 17 139 157
Samples with PFMOAA as the highest
concentration 17 (100%) 95 (68%) 96 (61%)
Samples with PFMOAA as the second
highest concentration 0 18 (13%) 35 (22%)
Samples with PFMOAA as the third
highest concentration 0 6 (4%) 5 (3%)
Total percent representation of PFMOAA
as the highest to third highest
concentration compound within the dataset
100% 85% 86%
Notes:
Data used to populate this table was obtained from Chemours surface water sampling programs from 2019
through 2021.
Between 1979 and 2017 fluoroproduct process wastewater from the Facility was directed to the
onsite wastewater treatment plant (WWTP) for pH neutralization prior to permitted discharge to
the Cape Fear River at Facility outfalls (Geosyntec, 2021a). This sequence would have resulted in
the Table 3+ PFAS potentially present in the process wastewater also being present in the Cape
Fear River. Historical Cape Fear River PFAS concentrations are also interpreted to have been
higher than present concentrations. For instance, HFPO-DA concentrations in the Cape Fear River
during 2021 ranged from 2 to 92 ng/L, whereas Cape Fear River samples taken between June 19
and 22, 2017 show river HFPO-DA concentrations of 629 to 1,100 ng/L (Geosyntec, 2019c).
PFMOAA is interpreted to have also been present at concentrations greater than HFPO-DA in the
Cape Fear River between 1979 and 2017 since measurements of process water samples and
groundwater samples with process water signatures show PFMOAA being present at higher
concentrations than HFPO-DA (Geosyntec, 2019c).
These data were used to inform the development of these hypotheses about the sources of
contamination.

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Figure 2 New Hanover County Private Well Sampling Locations from NCDEQ November 3,
2021 Dataset.
Notes:
Sampling locations are enumerated and correspond to Location IDs listed in Appendix B.

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Figure 3 New Hanover County Non-Private Well Sampling Locations from NCDEQ November
3, 2021 Dataset.
Notes:
Sampling locations are enumerated and correspond to Location IDs listed in Appendix C.

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3.2 Source and Cause Hypotheses
Hypotheses that may potentially explain the source and cause of contamination were developed
using Table 3+ PFAS data in the counties, information from prior assessment programs, and an
initial review of hydrogeology, hydrology, and geomorphology of the counties. These hypotheses
and whether or not they are retained for further assessment, are listed in Table 4, below.
Information and data from 1979 to present will be considered when evaluating each hypothesis,
since during the period of 1979 to 2017, process water was released to the Cape Fear River through
permitted discharges. After 2017, process water with PFAS at the Facility has been collected and
sent for off-site disposal, reducing the yearly HFPO-DA loading to the Cape Fear River by over
95 percent (Geosyntec 2019). Additional mechanisms for the source and cause of Table 3+ PFAS
in the counties may also exist that may not be considered in these hypotheses. As new information
and data are made available, the hypotheses described below may or may not be retained.
Table 4 List of Table 3+ PFAS Groundwater Source and Cause Hypotheses
Hypothesis
Number Description
Hypothesis is
Retained
(Yes or No)
1 Leaking potable water distribution pipes and sanitary sewers
that convey water from the Cape Fear River Yes
2 Direct application and injection to downstream areas by Cape
Fear River water users Yes
3 Aquifer recharge by the Cape Fear River Yes
4 Aerial deposition from the Facility air emission sources No
5 Groundwater transport from the Facility No
The hypotheses listed above are described in further detail in the following sub-sections. Each sub-
section introduces the hypothesis, evaluates if the hypothesis is retained, describes the general
approach for evaluating retained hypotheses, and then describes the information and access
requirements to assess these hypotheses. Hypotheses are not retained if they are shown to be
inconsistent with observations or not possible in principle. The general approach for evaluating
retained hypotheses describes the type of locations where the hypotheses would be evaluated and
considerations for choosing investigative locations.
3.2.1 Hypothesis #1: Leaks in Water Distribution and Sanitary Sewer Lines
Hypothesis 1 posits that water leaking from potable water distribution systems and sanitary sewer
networks in the counties has led to Table 3+ PFAS compounds being present in groundwater. This
hypothesis is retained for additional assessment since water from the Cape Fear River is believed
to have contained Table 3+ PFAS since 1979, and this water has been used in certain potable water
distribution systems and collected after use by sanitary sewer systems in these counties.
The United States Environmental Protection Agency (USEPA) reports that an average of 14% of
potable water distributed by water systems in the United States is lost to leakage (USEPA, 2021).
The magnitude of water losses from a distribution system may be influenced by the age of

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infrastructure, catastrophic events like pipe damage, and the quality of system construction. Water
losses due to leaking infrastructure can be detected by analyzing meter readings, comparing
predicted versus measured flow rates, and by reports of pooling or pipe bursts from water
consumers.
After distributed potable water is used, it is collected by sanitary sewer networks and conveyed to
WWTPs. Sanitary sewer exfiltration from damaged infrastructure may occur and is influenced by
the age of infrastructure, size of network, construction materials and quality, and depth of flow in
sewer (Amick and Burgess 2000). Geological factors such as groundwater depth (which influences
pressure differentials), soil type, and fault lines can also contribute to sewer exfiltration (Amick
and Burgess 2000). Finally, factors such as average annual rainfall and average days of frost can
affect sewer line integrity (Amick and Burgess 2000).
3.2.1.1 Assessment of Hypothesis
This hypothesis will be assessed in two steps. Relevant data to plan the investigation will be
gathered and compiled and then four representative locations where leaking may have occurred
will be selected and assessed. Data for planning the investigation will include identifying the
following:
• Potable water distribution systems in the counties that utilized Cape Fear River water
between years 1979 and 2017
• Sanitary sewer systems in the counties that accepted water originally sourced from the
Cape Fear River between 1979 and 2017
• Locations of known potable water distribution network and sanitary system leaks where
Cape Fear River water was the source of potable water between 1979 and 2017
• The location of water treatment plants and WWTPs using Cape Fear River water between
1979 and 2017
Up to four representative locations will be selected where property access can be obtained and
sampling activities safely conducted. At each location, temporary groundwater sampling points
will be installed and co-located surface soil and sub-surface soil samples collected. At each
location, groundwater flow patterns will be inferred based on knowledge of area geology, land
surface contours, and aquifer maps to guide the positioning of sampling locations. Sampling
locations will be positioned downgradient and upgradient of known leak locations. The upgradient
locations are not expected to have Table 3+ PFAS from the Cape Fear River and will thus serve
as investigative control locations. Groundwater and soil samples will be collected and analyzed
for Table 3+ and EPA 537 Modified PFAS compounds; collected samples may also be analyzed
for other parameters such as those listed in Appendix D. Additional parameters, outlined in
Appendix C D, may also be evaluated to differentiate the source of Table 3+ PFAS from either a
drinking water distribution system or a sanitary sewer network and ambient groundwater. The
investigative locations to be selected will be distant from PFAS transport pathways associated with

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other hypotheses, e.g., direct application from Cape Fear River water users, etc., to reduce the
possibility of confounding factors during data interpretation.
3.2.1.2 Data Gathering and Compilation
To support the selection of possible investigation areas, Geosyntec has begun gathering and
collecting data from both publicly available online sources and through transmitting data request
letters to NCDEQ, each of the counties, Lower Cape Fear Water and Sewer Authority
(LCFWASA), Cape Fear Public Utility Authority (CFPUA), Aqua of NC, Inc., Town of
Wrightsville Beach, and Town of Carolina Beach. As the data gathering and compilation step
continues, additional organizations may also be contacted. Letters that have been sent through
January 31, 2022 are provided in Appendix A and the content of the requests are summarized in
Table 5.
Table 5 Summary of Data Requested to Complete Assessment of Water Distribution and
Sanitary Sewer System
Data Needs
Digital computerized map of drinking water supply lines
Additional information about drinking water supply lines, including the asset ages, construction
material, diameter, and inverts
Map of sanitary sewer system
Additional information about sanitary sewer system, including the asset ages, construction material,
diameter, and inverts
Any data (and relevant information, including but not limited to laboratory EDDs and sample
collection information, etc.) indicating the presence of Table 3+ PFAS in water sources
Data about water distribution system leaks since 1979 (including known water mains with leaks, and
leak and repair locations)
Information since 1979, on a per year basis of the proportion of Cape Fear River water versus
groundwater or other water sources used in each distribution system;
Locations where surface water from the Cape Fear River was injected into subsurface aquifers
Notes:
Data needs reflect information that would support an assessment of whether Table 3+ PFAS was circulated
through drinking water and sanitary sewer systems in the counties. Geosyntec has submitted these data
requests to each of the counties, Carolina Beach, Wrightsville Beach, LCFWASA, CFPUA, and Aqua of NC,
Inc.

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
14 February 2022
Through January 31, 2022, Geosyntec has compiled identified or received information,
summarized in Appendix E, which will be supplemented and verified against information received
from NCDEQ, the counties and the various utilities. This information includes lists of water
treatment plants and water distribution systems potentially using Cape Fear River Water and
WWTPs potentially receiving sanitary water originally from the Cape Fear River.
3.2.2 Hypothesis #2: Direct Application or Injection to Downstream Areas by Cape Fear
River Water Users
Hypothesis 2 posits that land and water management practices using Cape Fear River water
directly for irrigation, Aquifer Storage and Recovery (ASR), or other various uses may have
recharged aquifers with Cape Fear River water and in this manner introduced Table 3+ PFAS
compounds. This hypothesis is retained for additional assessment since the Cape Fear River water
is believed to have contained Table 3+ PFAS since 1979, and this water has been used in certain
land and water management practices in the counties.
3.2.2.1 Assessment of Hypothesis
This hypothesis will be assessed in two steps. Relevant data to plan the investigation will be
gathered and compiled and then, two representative locations where this recharge may have
occurred will be selected and assessed. Data for planning the investigation will include compiling
a list of large-scale Cape Fear River water users between 1979 and 2017. This will include
gathering data as follows:
• List of parties permitted to draw Cape Fear River water since 1979 (Source: NCDEQ).
• Records review of customers of LCFWASA, Aqua of NC, Inc., CFPUA, and other utilities.
• Identification of farmland practices and locations using Cape Fear River water for
irrigation.
• Review of CFPUA records of ASR program (volumes injected, dates operational, etc.,).
Geosyntec has begun the process of requesting water usage records from each of the counties,
LCFWASA, CFPUA, and Aqua of NC, Inc. and has compiled data regarding LCFWASA water
customers and water withdrawal registrants in the counties.
Two representative locations will be selected where property access can be obtained and sampling
activities safely conducted. At each location temporary groundwater sampling points will be
installed and co-located surface soil and sub-surface soil samples collected. Sampling locations
will be positioned to include areas where recharge has occurred and locations downgradient and
upgradient. The upgradient locations, are expected to not have Table 3+ PFAS from the Cape Fear
River will serve as investigative control locations. Groundwater and soil samples will be collected
and analyzed for Table 3+ and EPA 537 Modified PFAS compounds; collected samples may also
be analyzed for other parameters such as those listed in Appendix D. The investigative locations
to be selected will be distant from PFAS transport pathways associated with other hypotheses,

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
15 February 2022
e.g., leaking water distribution pipes, etc., to reduce the possibility of confounding factors during
data interpretation.
3.2.3 Hypothesis #3: Aquifer Recharge by Cape Fear River
Hypothesis 3 posits that the Cape Fear River may have possibly recharged aquifers adjacent to the
river, particularly during periods of flooding and thus have introduced the Table 3+ PFAS present
in river water into these aquifers. This hypothesis is retained for additional assessment.
3.2.3.1 Assessment of Hypothesis
This hypothesis will be assessed in two steps. Relevant data to plan the investigation will be
gathered and compiled and then two representative locations where recharge may have occurred
will be selected and assessed. Data for planning the investigation will include identifying low lying
areas along the Cape Fear River in the four counties where flooding has occurred between 1979 to
2017 and identifying areas where the Cape Fear River may be a losing stream in the four counties
based on publicly available resources. This evaluation will consider amongst other sources of data
Federal Emergency Management Agency (FEMA) floodplain maps and/or resources from Landsat
or The National Aeronautics and Space Administration (NASA).
Two investigative areas will be selected where property access can be obtained and sampling
activities safely conducted. At each area temporary groundwater sampling points will be installed
and co-located surface soil and sub-surface soil samples collected. Sampling points will be
positioned in the areas which have experienced Cape Fear River flooding or recharge, and other
sampling locations will be positioned upland where Cape Fear River flooding has not occurred to
serve as control locations where Table 3+ PFAS detections are not expected. Groundwater and soil
samples will be collected and analyzed for Table 3+ and EPA 537 Modified PFAS compounds.
These samples may also be analyzed for other parameters such as those listed in Appendix D. The
investigative locations to be selected will be distant from PFAS transport pathways associated with
other hypotheses, e.g., leaking water distribution pipes, etc., to reduce the possibility of
confounding factors during data interpretation.
3.2.4 Hypothesis #4: Aerial Transport from Facility
Hypothesis 4 posits that the source of PFAS is from Facility air emissions that contained Table 3+
PFAS compounds and these may have been aerially transported to and then deposited in the
counties. As described in the conceptual site model from the On and Offsite Assessment Report,
aerial deposition has resulted in a distributed, non-point secondary source of PFAS in onsite and
offsite soils (Geosyntec, 2019b). Where aerial deposition has occurred, infiltrating rainfall has
transported these PFAS downward to groundwater (Geosyntec, 2019b). This hypothesis is not
retained based on assessment of the hypothesis using existing data.

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
16 February 2022
3.2.4.1 Assessment of Hypothesis
At the Facility, two Table 3+ PFAS signature types have been identified, an aerial deposition
signature and a process water signature (Geosyntec, 2021a). The aerial deposition signature is
defined as generally being dominated by the four compounds reported with the highest
concentrations in offsite groundwater, which are PMPA5, PEPA6, PFO2HxA7 and HFPO-DA,
while the process water signature is dominated by PFMOAA.
Of the 4,755 private wells with sufficient PFAS detections to be assessed (Geosyntec, 2021) all
4,755 had an aerial deposition signature. These private wells are hydraulically upgradient and/or
isolated from groundwater near facility operations and therefore, Table 3+ PFAS detected in these
wells are interpreted to have originated from aerial deposition (Geosyntec, 2019b).
The 395 private and non-private wells sample data posted by NCDEQ with Table 3+ PFAS
detections indicate a process water Table 3+ PFAS signature. PFMOAA is both the most
commonly detected Table 3+ compound, found in 143 of 158 samples with Table 3+ PFAS
detections. It is also the highest concentration Table 3+ PFAS in 134 of the 143 samples where
PFMOAA was detected (Table 2). Permitted discharges from the Facility to the Cape Fear River
between 1979 and 2017 contained PFAS process wastewater, suggesting that Cape Fear River
water withdrawals and usage may potentially be responsible for these detections, as is explored in
the other hypotheses, rather than aerial deposition.
3.2.5 Hypothesis #5: Groundwater Transport from Facility
Hypothesis 5 posits that Table 3+ PFAS present in groundwater at the facility have been
transported to counties via groundwater transport. This hypothesis is not retained based on the
assessment of existing data.
3.2.5.1 Assessment of Hypothesis
While many multiple lines of evidence can be constructed to demonstrate that migration of
Table 3+ PFAS through groundwater did not reach the counties, the simplest line of evidence is
the direction of groundwater flow at the facility. The On and Offsite Assessment (Geosyntec,
2019b) and all subsequent annual groundwater and mass loading model monitoring events have
shown groundwater onsite migrates towards the regional discharge feature, the Cape Fear River.
Therefore, this hypothesis is not retained.

5 PMPA: perfluoromethoxypropyl carboxylic acid
6 PEPA: perfluoroethoxypropyl carboxylic acid
7 PFO2HxA: perfluoro(3,5 dioxahexanoic) acid

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
17 February 2022
4. SUMMARY, IMPLEMENTATION AND REPORTING
This framework outlines a path forward on how to meet the five soil and groundwater assessment
requirements of the 2L rules. The assessment framework begins with a data gathering step
followed by preparing and then implementing investigative sampling plans. Investigative sampling
will be performed consistent with methodologies previously employed in characterization and
assessment activities such as the on- and offsite assessment and the on-going mass loading model
program (Geosyntec, 2019b, Geosyntec 2021b). The results from the investigative sampling and
the parallel interim four counties sampling and drinking water program will then be combined and
interpreted to prepare a soil and groundwater assessment report.
This framework describes the conceptual approach for assessing the hypotheses describing the
potential source and cause of Table 3+ PFAS in soil and groundwater in the counties. Hypotheses
that will be retained for evaluation are outlined in Table 6. Sampling plans for each of these
hypotheses will be developed using information collected during the data gathering and
compilation stage. Geosyntec has begun compiling some of this information from publicly
available sources. Other information is presently in possession of other organizations such as
NCDEQ, the counties, and various utilities. Geosyntec has sent letters to these organizations
requesting this information and requesting a teleconference to discuss the data request. This data
gathering stage is anticipated to last six months depending upon the responsiveness of the various
parties.
Table 6 Retained Source and Cause Hypotheses to be Assessed
Hypothesis Description Hypothesis is Retained
(Yes or No)
Leaking potable water distribution pipes and sanitary sewers that convey
water from the Cape Fear River Yes
Direct application and injection to downstream areas by Cape Fear River
water users Yes
Aquifer recharge by the Cape Fear River Yes
Upon completion of the data gathering stage, the sampling plan(s) will be prepared and provided
to NCDEQ and then the work conducted. Upon receipt of results and receipt of results available
from private well sampling Geosyntec will prepare a Soil and Groundwater Assessment Report to
submit to NCDEQ.

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
18 February 2022
5. REFERENCES
Amick and Burgess. 2000. Exfiltration in Sewer Systems. National Risk Management Research
Laboratory, Office of Research and Development, U.S. Environmental Protection Agency.
https://nepis.epa.gov/Exe/ZyPDF.cgi/2000E6PB.PDF?Dockey=2000E6PB.PDF
Geosyntec Consultants of NC, P.C. 2019a. Corrective Action Plan: Chemours Fayetteville Works.
December.
Geosyntec Consultants of NC, P.C. 2019b. On and Offsite Assessment: Chemours Fayetteville
Works. Version 2. October.
Geosyntec, 2020. Matrix Interference During Analysis of Table 3+ Compounds. Chemours
Fayetteville Works. June 30, 2020.
Geosyntec Consultants of NC, P.C. 2021a. Response to NCDEQ Comments on Consent Order
Paragraph 18 On and Offsite Assessment Report. Chemours Fayetteville Works. June 14,
2021.
Geosyntec Consultants of NC, P.C. 2021b. Cape Fear River PFAS Mass Loading Assessment –
Third Quarter 2021 Report. Version 1. December.
Geosyntec Consultants of NC, P.C. 2022. Interim Four Counties Sampling and Drinking Water
Plan (New Hanover, Brunswick, Columbus and Pender Counties). Chemours Fayetteville
Works. February 1, 2022.
NCDEQ. 2021. “Re: Notice Regarding Chemours’ Obligations Under Consent Order and 15A
NCAC 02L .0106 – Offiste Groundwater Assessment and Provision of Replacement Drinking
Water Supplies.” North Carolina Department of Environmental Quality, Assistant Secretary
for the Environment. November.
North Carolina Department of Health and Human Services (NC DHHS). 2017. DHHS
Drinking Water Advisory Decision Matrix. Presented to the NC SAB December 4, 2017.
https://deq.nc.gov/news/hot-topics/genx-investigation/secretaries-scienceadvisory-Board
NC OneMap. 2021. North Carolina County Parcel Data. USEPA. 2021. “Water Efficiency for
Water Suppliers.” Webpage accessed December 20, 2021. https://www.epa.gov/sustainable-
water-infrastructure/water-efficiency-water-suppliers

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
Appendix A
Public Records Requests
2501 Blue Ridge Road, Suite 430 Raleigh, NC 27607 PH 919.870.0576 www.geosyntec.com

December 14, 2021
VIA EMAIL

Meagan Kascsak, Communications Director Brunswick County Government Complex
30 Government Center Dr. NE Bolivia, NC 28422 [e-mail]
Subject: The Chemours Company/Public Records Request
Dear Ms. Kascsak:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1 We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from Brunswick County. Accordingly, on behalf of Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat. §§ 132-1, et seq., we request that Brunswick County produce or make available for inspection and photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you and your chosen staff members to help clarify questions about this request. List of Requested Information from Brunswick County
1. For each public water distribution system in the county2 that has, since 1979, utilized
Cape Fear River water as a source, the following records: a. Digital files in either CAD or GIS file format of the potable water distribution networks. Additional information, which if available would be greatly appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
2 The distribution systems in Brunswick County for which data and information are requested include but are not limited to the distribution systems listed in Table 1 at the end of this letter.
Meagan Kascsak, Communications Director Brunswick County
December 14, 2021
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks.
Additional information, which if available would be greatly appreciated
includes the asset ages, construction material, diameter, and inverts and water treatment plant locations; c. As available, records of water distribution system leaks since 1979 (including known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of
Cape Fear River water versus groundwater or other water sources used in each distribution system; and e. As available, records of locations where surface water from the Cape Fear River was injected into subsurface aquifers.

2. Groundwater PFAS testing results from Brunswick County which are not posted on DEQ’s website,3 including: a. Identifying information for the wells included in the datasets; b. For each well, associated laboratory data and sampling information
(including, field notes, water levels, water depths, and well coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data Deliverables (“EDDs”); d. For each well, well service and operation history information; and e. A consolidated list or lists and/or GIS files containing well locations (eastings,
northings), elevations, screen interval depths, and hydrogeological data
(including, without limitation, start and end depth of each hydrogeological unit). 3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of public and private drinking water supply wells in Brunswick
County. 4. As available, the list of persons or entities with registered water withdrawals and, for
each registration, the quantities of water withdrawn and hydrogeological units from
which the water was or is withdrawn.

3 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-emerging-compounds-water#well-testing-in-new-hanover-county.
Meagan Kascsak, Communications Director Brunswick County
December 14, 2021
Page 3

***

We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case we will redirect this request to other appropriate County personnel. We would like to
arrange to review these Public Records as soon as possible, and request that your response to this
Public Records Request be expedited. We will pay for all associated reasonable costs.

Meagan Kascsak, Communications Director Brunswick County
December 14, 2021
Page 4

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal
Attachments: Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape
Fear River Surface Water Since 1979

Meagan Kascsak, Communications Director Brunswick County
December 14, 2021
Page 5

Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape Fear River
Surface Water Since 1979

County Distribution System Operator
Brunswick Brunswick County
Shallotte
Ocean Isle Beach
Bald Head Utilities
Leland
Navassa
South Port
Oak Island
H2GO
Holden Beach
Northwest
Village of Bald Head Island Public Utilities

2501 Blue Ridge Road, Suite 430 Raleigh, NC 27607 PH 919.870.0576 www.geosyntec.com

December 14, 2021
VIA EMAIL

Amanda Prince, County Attorney Columbus County Administration Building 110 Courthouse Square
Whiteville, NC 28472
[e-mail]
Subject: The Chemours Company/Public Records Request
Dear Ms. Prince:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1
We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so, Chemours requests further data and information from Columbus County. Accordingly, on behalf of Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat. §§ 132-1, et seq., we request that Columbus County produce or make available for inspection and photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests listed first. To help facilitate this request, we also intend to set up a teleconference call with you and your chosen staff members to help clarify questions about this request. List of Requested Information from Columbus County
1. For each public water distribution system in the county2 that has, since 1979, utilized Cape Fear River water as a source, the following records: a. Digital files in either CAD or GIS file format of the potable water distribution networks. Additional information, which if available would be greatly

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
2 The distribution system in Columbus County for which data and information are requested include but are not limited to is that of Columbus County Public Utilities.
Amanda Prince, Attorney Columbus County
December 14, 2021
Page 2

appreciated, includes the asset ages, construction material, diameter, and
inverts;
b. Digital files in either CAD or GIS file format of the sanitary sewer networks. Additional information, which if available would be greatly appreciated includes the asset ages, construction material, diameter, and inverts and water treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations); d. As available, records, since 1979, on a per year basis of the proportion of Cape Fear River water versus groundwater or other water sources used in each distribution system; and
e. As available, records of locations where surface water from the Cape Fear
River was injected into subsurface aquifers. 2. Groundwater PFAS testing results from Columbus County which are not posted on DEQ’s website,3 including:
a. Identifying information for the wells included in the datasets;
b. For each well, associated laboratory data and sampling information (including, field notes, water levels, water depths, and well coordinates); c. For each well, associated analytical laboratory reports and Electronic Data Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well locations (eastings, northings), elevations, screen interval depths, and hydrogeological data (including, without limitation, start and end depth of each hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and operation histories of public and private drinking water supply wells in Columbus County.
4. As available, the list of persons or entities with registered water withdrawals and, for
each registration, the quantities of water withdrawn and hydrogeological units from which the water was or is withdrawn.

3 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-emerging-compounds-water#well-testing-in-new-hanover-county.
Amanda Prince, Attorney Columbus County
December 14, 2021
Page 3

***

We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case we will redirect this request to other appropriate County personnel. We would like to
arrange to review these Public Records as soon as possible, and request that your response to this
Public Records Request be expedited. We will pay for all associated reasonable costs.
Amanda Prince, Attorney Columbus County
December 14, 2021
Page 4

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

December 14, 2021
VIA EMAIL

Jessica Loeper, Chief Communications Officer
New Hanover County Communications and Outreach
230 Government Center Drive, Suite 195
Wilmington, NC 28403
[e-mail]
Subject: The Chemours Company/Public Records Request
Dear Ms. Loeper:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from New Hanover County. Accordingly, on
behalf of Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen.
Stat. §§ 132-1, et seq., we request that New Hanover County produce or make available for
inspection and photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public
Records”) described in the list below. This list has been organized on a priority basis, with highest
priority requests listed first. To help facilitate this request, we also intend to set up a teleconference
call with you and your chosen staff members to help clarify questions about this request.

List of Requested Information from New Hanover County
1. For each public water distribution system in the county2 that has, since 1979, utilized
Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
2 The distribution systems in New Hanover County for which data and information are requested include, but are not
limited to, the distribution systems listed in Table 1 at the end of this letter.
Jessica Loeper, Chief Communications Officer
New Hanover County Communications and Outreach
December 14, 2021
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks.
Additional information, which, if available, would be greatly appreciated
includes the asset ages, construction material, diameter, and inverts and water
treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater PFAS testing results from New Hanover County not posted on DEQ’s
website,3 including:
a. Identifying information for the wells included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of public and private drinking water supply wells in New Hanover
County.

4. As available, the list of persons or entities with registered water withdrawals and, for
each registration, the quantities of water withdrawn and hydrogeological units from
which the water was or is withdrawn.

***

3 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Jessica Loeper, Chief Communications Officer
New Hanover County Communications and Outreach
December 14, 2021
Page 3

We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate County personnel. We would like to
arrange to review these Public Records as soon as possible, and request that your response to this
Public Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal
Attachments: Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape
Fear River Surface Water Since 1979

Jessica Loeper, Chief Communications Officer
New Hanover County Communications and Outreach
December 14, 2021
Page 4

Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape Fear River
Surface Water Since 1979

County Distribution System Operator
New Hanover CFPUA Sweeney
CFPUA Richardson
CFPUA Monterey Heights
Wrightsville Beach
Carolina Beach
Kure Beach
Cape Master (South Wilmington Area)

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

December 14, 2021
VIA EMAIL

Tara Cline, Administrator
Pender County Manager’s Office
803 S. Walker St.
Burgaw, NC 28425
[e-mail]
Subject: The Chemours Company/Public Records Request
Dear Ms. Cline:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from Pender County. Accordingly, on behalf of
Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat.
§§ 132-1, et seq., we request that Pender County produce or make available for inspection and
photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you
and your chosen staff members to help clarify questions about this request.

List of Requested Information from Pender County
1. For each public water distribution system in the county2 that has, since 1979, utilized
Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
2 The distribution systems in Pender County for which data and information are requested include, but are not
limited to, the distribution systems listed in Table 1 at the end of this letter.
Tara Cline, Administrator
Pender County Manager’s Office
December 14, 2021
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks.
Additional information, which, if available, would be greatly appreciated
includes the asset ages, construction material, diameter, and inverts and water
treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater PFAS testing results from Pender County not posted on DEQ’s website,3
including:
a. Identifying information for the wells included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of public and private drinking water supply wells in Pender County.

4. As available, the list of persons or entities with registered water withdrawals and, for
each registration, the quantities of water withdrawn and hydrogeological units from
which the water was or is withdrawn.

***

3 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Tara Cline, Administrator
Pender County Manager’s Office
December 14, 2021
Page 3

We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate County personnel. We would like to
arrange to review these Public Records as soon as possible, and request that your response to this
Public Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal
Attachments: Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape
Fear River Surface Water Since 1979

Tara Cline, Administrator
Pender County Manager’s Office
December 14, 2021
Page 4

Table 1: Preliminary List of Water Distribution Systems Potentially Using Cape Fear River
Surface Water Since 1979

County Distribution System Operator
Pender Town of Burgaw
Town of Topsail Beach
Town of Surf City
Moore’s Creek Water District
Central Pender Water District
Maple Hill Water District
Columbia-Union Water

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

December 14, 2021
VIA EMAIL

Tim Holloman, Director
Lower Cape Fear Water and Sewer Authority
1107 New Point Boulevard, Suite 17
Leland, NC 28451
[e-mail]
Subject: The Chemours Company/Public Records Request
Dear Mr. Holloman:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requires further data and information from Lower Cape Fear Water and Sewer Authority
(LCFWASA). Accordingly, on behalf of Chemours, and in accordance with the North Carolina
Public Records Law, N.C. Gen. Stat. §§ 132-1, et seq., we request that Lower Cape Fear Water
and Sewer Authority promptly produce or make available for inspection and photocopying the
“Public Records” (as defined in § 132-1, hereinafter “Public Records”) described in the list below.
This list has been organized on a priority basis, with highest priority requests listed first. To help
facilitate this request, we also intend to set up a teleconference call with you and your chosen staff
members to help clarify questions about this request.

1. For LCFWASA’s Cape Fear River water collection and distribution systems that
collect water from the Cape Fear River and distribute water to customers, the following
records:
a. Digital files in either CAD or GIS file format of the collection and distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
Tim Holloman, Director
Lower Cape Fear Water and Sewer Authority
December 14, 2021
Page 2

b. As available, records of water collection and distribution system leaks since
1979 (including leak and repair locations); and
c. Locations where surface water from the Cape Fear River may have been
injected into subsurface aquifers by LCFWASA.

2. Records, since 1979 as available, on a per year basis of customers to whom LCFWASA
distributed Cape Fear River water, and the volume of water distributed to each
customer, and as relevant, the proportion of Cape Fear River water versus groundwater
or other water sources distributed to each customer; and

3. LCFWASA PFAS testing results not posted on DEQ’s website,2 including:
a. Identifying information for the wells/sampling points included in the datasets;
b. For each location, associated laboratory data and sampling information
(including, without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each location, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each location, all service and operation history information; and
e. A consolidated list or lists and/or GIS files containing location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

***

We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate personnel. We would like to arrange
to review these Public Records as soon as possible, and request that your response to this Public
Records Request be expedited. We will pay for all associated reasonable costs.

2 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Tim Holloman, Director
Lower Cape Fear Water and Sewer Authority
December 14, 2021
Page 3

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

January 20, 2022
VIA EMAIL

Carolina Beach
Kim Ward, Town Clerk
1121 N. Lake Park Blvd.
Carolina Beach, NC 28428
[e-mail]

Subject: The Chemours Company/Public Records Request
Dear Ms. Ward:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from Carolina Beach. Accordingly, on behalf of
Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat.
§§ 132-1, et seq., we request that Carolina Beach produce or make available for inspection and
photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you
and your chosen staff members to help clarify questions about this request.

List of Requested Information from Carolina Beach
1. For each public water distribution system owned or operated by Carolina Beach that
has, since 1979, utilized Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
Kim Ward, Town Clerk
Carolina Beach
January 20, 2022
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks
owned or operated by Carolina Beach. Additional information, which, if
available, would be greatly appreciated includes the asset ages, construction
material, diameter, and inverts and water treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater, drinking water, and sanitary sewer PFAS testing results not posted on
DEQ’s website,2 including:
a. Identifying information for the sampling locations included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of drinking water supply wells owned or operated by Carolina
Beach.

***
We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate personnel. We would like to arrange

2 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Kim Ward, Town Clerk
Carolina Beach
January 20, 2022
Page 3

to review these Public Records as soon as possible, and request that your response to this Public
Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

January 20, 2022
VIA EMAIL

Wrightsville Beach
Sylvia Holleman, Town Clerk
PO Box 626
Wrightsville Beach, NC 28480
[e-mail]

Subject: The Chemours Company/Public Records Request
Dear Ms. Holleman:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from Wrightsville Beach. Accordingly, on behalf
of Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat.
§§ 132-1, et seq., we request that Wrightsville Beach produce or make available for inspection and
photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you
and your chosen staff members to help clarify questions about this request.

List of Requested Information from Wrightsville Beach
1. For each public water distribution system owned or operated by Wrightsville Beach
that has, since 1979, utilized Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
Sylvia Holleman, Town Clerk
Wrightsville Beach
January 20, 2022
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks
owned or operated by Wrightsville Beach. Additional information, which, if
available, would be greatly appreciated includes the asset ages, construction
material, diameter, and inverts and water treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater, drinking water, and sanitary sewer PFAS testing results not posted on
DEQ’s website,2 including:
a. Identifying information for the sampling locations included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of drinking water supply wells owned or operated by Wrightsville
Beach.

***
We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate personnel. We would like to arrange

2 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Sylvia Holleman, Town Clerk
Wrightsville Beach
January 20, 2022
Page 3

to review these Public Records as soon as possible, and request that your response to this Public
Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

January 20, 2022
VIA EMAIL

Vaughn Hagerty
Public Information Officer
Cape Fear Public Utility Authority
235 Government Center Drive
Wilmington, NC 28403

Subject: The Chemours Company/Public Records Request
Dear Mr. Hagerty:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from CFPUA. Accordingly, on behalf of
Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat.
§§ 132-1, et seq., we request that CFPUA produce or make available for inspection and
photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you
and your chosen staff members to help clarify questions about this request.

List of Requested Information from CFPUA
1. For each public water distribution system owned or operated by CFPUA that has, since
1979, utilized Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
Vaughn Hagerty, Public Information Officer
Cape Fear Public Utility Authority
January 20, 2022
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks
owned or operated by CFPUA. Additional information, which, if available,
would be greatly appreciated includes the asset ages, construction material,
diameter, and inverts and water treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater, drinking water, and sanitary sewer PFAS testing results not posted on
DEQ’s website,2 including:
a. Identifying information for the sampling locations included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of drinking water supply wells owned or operated by CFPUA.

***
We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate personnel. We would like to arrange

2 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
Vaughn Hagerty, Public Information Officer
Cape Fear Public Utility Authority
January 20, 2022
Page 3

to review these Public Records as soon as possible, and request that your response to this Public
Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

2501 Blue Ridge Road, Suite 430
Raleigh, NC 27607
PH 919.870.0576
www.geosyntec.com

January 20, 2022
VIA EMAIL

Aqua of NC Inc.
C. Ruffin Poole
Water and Wastewater
900 The Cape Boulevard
Wilmington, NC 28412
[e-mail]

Subject: The Chemours Company/Public Records Request
Dear Mr. Poole:
On November 3, 2021, the North Carolina Department of Environmental Quality (“DEQ”) sent a
letter to The Chemours Company, entitled “Notice Regarding Chemours’ Obligations Under
Consent Order and 15A NCAC 02L .0106 - Offsite Groundwater Assessment and Provision of
Replacement Drinking Water Supplies” (hereafter referred to as the “Notice”).1

We are assisting Chemours in responding to DEQ’s Notice. In order for Chemours to do so,
Chemours requests further data and information from Aqua of NC, Inc. Accordingly, on behalf of
Chemours, and in accordance with the North Carolina Public Records Law, N.C. Gen. Stat.
§§ 132-1, et seq., we request that Aqua of NC, Inc. produce or make available for inspection and
photocopying the “Public Records” (as defined in § 132-1, hereinafter “Public Records”) described
in the list below. This list has been organized on a priority basis, with highest priority requests
listed first. To help facilitate this request, we also intend to set up a teleconference call with you
and your chosen staff members to help clarify questions about this request.

List of Requested Information from Aqua of NC, Inc.
1. For public water distribution systems operated or owned by Aqua of NC, Inc. that have,
since 1979, utilized Cape Fear River water as a source, the following records:
a. Digital files in either CAD or GIS file format of the potable water distribution
networks. Additional information, which, if available, would be greatly
appreciated, includes the asset ages, construction material, diameter, and
inverts;

1 DEQ has posted the Notice on its website at https://deq.nc.gov/media/25279/download?attachment.
C. Ruffin Poole, Water and Wastewater
Aqua of NC Inc.
January 20, 2022
Page 2

b. Digital files in either CAD or GIS file format of the sanitary sewer networks
owned or operated by Aqua of NC, Inc. Additional information, which, if
available, would be greatly appreciated includes the asset ages, construction
material, diameter, and inverts and water treatment plant locations;
c. As available, records of water distribution system leaks since 1979 (including
known water mains with leaks, and leak and repair locations);
d. As available, records, since 1979, on a per year basis of the proportion of Cape
Fear River water versus groundwater or other water sources used in each
distribution system; and
e. As available, records of locations where surface water from the Cape Fear River
was injected into subsurface aquifers.

2. Groundwater, drinking water, and sanitary sewer PFAS testing results not posted on
DEQ’s website,2 including:
a. Identifying information for the sampling locations included in the datasets;
b. For each well, associated laboratory data and sampling information (including,
without limitation, field notes, water levels, water depths, and well
coordinates);
c. For each well, associated analytical laboratory reports and Electronic Data
Deliverables (“EDDs”);
d. For each well, well service and operation history information; and
e. A consolidated list or lists and/or GIS files containing well location information
(such as eastings, northings), elevations, screen interval depths, and
hydrogeological data (including, without limitation, start and end depth of each
hydrogeological unit).

3. Records regarding the numbers, locations, registrations, usages, and well service and
operation histories of drinking water supply wells operated or owned by Aqua of NC,
Inc.

***
We are directing this Public Records Request to you because we understand that you will
coordinate a response from all appropriate representatives within your organization. Please tell us
immediately if you are not authorized to accept this request on behalf of your organization, in
which case, we will redirect this request to other appropriate personnel. We would like to arrange

2 The results posted on DEQ’s website are at https://deq.nc.gov/news/key-issues/emerging-compounds/managing-
emerging-compounds-water#well-testing-in-new-hanover-county.
C. Ruffin Poole, Water and Wastewater
Aqua of NC Inc.
January 20, 2022
Page 3

to review these Public Records as soon as possible, and request that your response to this Public
Records Request be expedited. We will pay for all associated reasonable costs.

Thank you for your attention to this matter, and we look forward to hearing from you as soon as
possible.

Sincerely,

Beau Hodge, P.G. (NC)
Senior Principal

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
Appendix B
PFAS Results in Groundwater from
NCDEQ Sampling of Private Wells in
New Hanover County (2020)
APPENDIX B
PFAS Results in Groundwater from NCDEQ
Sampling of Private Wells in New Hanover County (2020)
Geosyntec Consultants of NC, P.C.
Sample Location Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well
Location ID 1 2 3 4 5 6 7 8 9 10 11
Sample Date 1/22/2020 1/23/2020 1/23/2020 1/22/2020 1/22/2020 1/23/2020 1/23/2020 1/22/2020 1/23/2020 1/22/2020 1/22/2020
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)15 16 ND 2 1 ND ND 4 11 7 35
Perfluoro-2-methoxyacetic acid (PFMOAA)140 100 ND 18 13 ND ND 25 51 37 140
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)110 89 ND 14 10 ND ND 22 41 32 140
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)36 23 ND 4 3 ND ND 6 13 8 11
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)6 3 ND ND ND ND ND ND 1 1 ND
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
ND ND ND ND ND ND ND ND ND ND ND
PMPA 9 12 ND 1 ND ND ND 5 6 7 34
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)ND 3 ND ND ND ND ND ND ND ND 9
Nafion Byproduct 1 (PS Acid)ND ND ND ND ND ND ND ND ND ND ND
Nafion Byproduct 2 (Hydro-PS Acid)2 ND ND ND ND ND ND ND ND ND 1
Byproduct 4 (BP4 of R-PSDA)----------------------
Byproduct 5 (BP5 or Hydrolyzed PSDA)) ----------------------
Byproduct 6 (BP6 or R-PSDCA) ----------------------
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS) ----------------------
Perfluoroethoxypropionic acid (EVE Acid) ----------------------
Hydro-EVE ----------------------
R-EVE ----------------------
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES) ----------------------
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) ----------------------
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)ND ND ND ND ND ND ND ND ND ND ND
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)----------------------
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)ND 3 ND ND ND ND ND ND ND ND 9
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)ND ND ND ND ND ND ND ND ND ND ND
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)ND ND ND ND ND ND ND ND ND ND ND
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)ND ND ND ND ND ND ND ND ND ND ND
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)ND ND ND ND ND ND ND ND ND ND ND
FBSA ----------------------
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic acid
(10:2 FTS)ND ND ND ND ND ND ND ND ND ND ND
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)ND ND ND ND ND ND ND ND ND ND ND
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid (6:2
FTS)ND ND ND ND ND ND ND ND ND ND ND
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2
FTS)ND ND ND ND ND ND ND ND ND ND ND
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)ND ND ND ND ND ND ND ND ND ND ND
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)ND ND ND ND ND ND ND ND ND ND ND
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane sulfonamide
(NMeFOSA) ND ND ND ND ND ND ND ND ND ND ND
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)ND ND ND ND ND ND ND ND ND ND ND
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS) ND ND ND ND ND ND ND ND ND ND ND
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)2 1 ND ND ND ND ND 1 1 2 ND
TR0795 Page 1 of 2 February 2022
APPENDIX B
PFAS Results in Groundwater from NCDEQ
Sampling of Private Wells in New Hanover County (2020)
Geosyntec Consultants of NC, P.C.
Sample Location Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well Private Well
Location ID 1 2 3 4 5 6 7 8 9 10 11
Sample Date 1/22/2020 1/23/2020 1/23/2020 1/22/2020 1/22/2020 1/23/2020 1/23/2020 1/22/2020 1/23/2020 1/22/2020 1/22/2020
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)3 5 ND ND ND ND ND 2 ND 3 2
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)ND ND ND ND ND ND ND ND ND ND ND
Perfluorodecanoic acid (PFDA)ND ND ND ND ND ND ND ND ND ND ND
Perfluorododecanoic acid (PFDoA)ND ND ND ND ND ND ND ND ND ND ND
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)ND ND ND ND ND ND ND ND ND ND ND
Perfluoroheptanoic acid (PFHpA)3 2 ND 1 ND ND ND 2 1 3 1
Perfluorohexadecanoic acid (PFHxDA)ND ND ND ND ND ND ND ND ND ND ND
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)6 3 ND 1 ND ND ND 3 1 4 ND
Perfluorohexanoic acid (PFHxA)4 4 ND 1 ND ND ND 4 2 5 1
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)ND ND ND 1 ND ND ND ND ND ND ND
Perfluorononanoic acid (PFNA)ND ND ND ND ND ND ND ND ND 1 ND
Perfluorooctadecanoic acid (PFODA) ND ND ND ND ND ND ND ND ND ND ND
Perfluorooctane sulfonamide (PFOSA or PFOSAm)ND ND ND ND ND ND ND ND ND ND ND
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)8 1 ND 4 1 1 ND 5 4 9 ND
Perfluorooctanoic acid (PFOA)4 3 ND 1 1 ND ND 4 2 7 1
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)ND ND ND ND ND ND ND ND ND ND ND
Perfluoropentanoic acid (PFPeA)6 6 ND 1 1 ND ND 4 2 5 4
Perfluorotetradecanoic acid (PFTeDA or PFTDA)ND ND ND ND ND ND ND ND ND ND ND
Perfluorotridecanoic acid (PFTrDA)ND ND ND ND ND ND ND ND ND ND ND
Perfluoroundecanoic acid (PFUdA or PFUnDA)ND ND ND ND ND ND ND ND ND ND ND
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)ND ND ND ND ND ND ND ND ND ND ND
Total Table 3+ Compounds 17 Compounds (ng/L)320 250 ND 39 27 ND ND 61 120 91 380
Total Table 3+ Compounds 20 Compounds (ng/L)320 250 ND 39 27 ND ND 61 120 91 380
Total of Other PFAS (ng/L)36 26 ND 10 3 1 ND 24 14 38 9
Total of all Compounds (ng/L)350 270 ND 48 30 1 ND 85 140 130 390
Notes:
1. Data were provided by NCDEQ and includes Private wells.
2. Concentrations are presented in ng/L.
3. Total Table 3+ (17 compounds) does not include R-PSDA, Hydrolyzed PSDA, and R-EVE.
4. Unique IDs were not given for private wells, however, data are differentiated by latitude/longitude.
NCDEQ - North Carolina Department of Environmental Quality
ng/L : nanograms per liter
ND - Compound not detected
PFAS - per and polyfluoroalkyl substances
-- - Not applicable
TR0795 Page 2 of 2 February 2022

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
Appendix C
PFAS Results in Groundwater from
NCDEQ Sampling of Non-Private Wells in
New Hanover County (2019-2021)

APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location Cameron
Trace Well
Location ID 2
Sample Date 6/19/2019 7/13/2020 4/6/2021 10/5/2021 1/26/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 6/10/2020 3/23/2021 10/5/2021
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)12 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)--------------------------------------------
Perfluoro-2-methoxyacetic acid (PFMOAA)73 ND ND ND ND ND ND --1 ND ND --ND 1 --ND ND ----ND ND ND
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)57 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)21 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)3 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
ND ND ND ND ND ND ND
----
ND ND --ND ND --ND ND ----ND ND ND
PMPA 8 ----ND --ND ND ----ND ND --ND ND --ND ND --------ND
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)3 --ND ND ND ND ND ----ND ND --ND ND --ND ND ------ND ND
Nafion Byproduct 1 (PS Acid)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Nafion Byproduct 2 (Hydro-PS Acid)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Byproduct 4 (BP4 of R-PSDA)----ND ND ND ------------------------------ND ND
Byproduct 5 (BP5 or Hydrolyzed PSDA)) ----ND ND ND ------------------------------ND ND
Byproduct 6 (BP6 or R-PSDCA) ----ND ND ND ------------------------------ND ND
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS) ----ND ND ND ------------------------------ND ND
Perfluoroethoxypropionic acid (EVE Acid) ----ND ND ND ------------------------------ND ND
Hydro-EVE ----ND ND ND ------------------------------ND ND
R-EVE ----ND ND ND ------------------------------ND ND
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES) ----ND ND ND ------------------------------ND ND
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) ----ND ND ND ND ND ----ND ND --ND ND --ND ND ------ND ND
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)ND ND ND ND ND ----------------------------ND ND ND
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)ND 9 ND ND ND --ND ------ND ----ND ----ND ----ND ND ND
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)ND ND ND ND ND ----------------------------ND ND ND
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)--ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)--ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
FBSA ------ND --ND ND ----ND ND --ND ND --ND ND --------ND
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)6 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)ND ND ND ND ND ND ND ----ND ND 6 ND ND --ND ND ----ND ND ND
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA) --ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS) ----ND ND ND ND ND ----ND ND --ND ND --ND ND ------ND ND
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)1 ND ND ND ND ----------------------------ND ND ND
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)2 ND ND ND 1 ND ND --3 ND ND --1 1 2.9 ND ND --1 ND ND ND
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)ND ND ND ND ND ND ND ----ND 2 --6 10 --ND ND ----ND ND ND
Perfluorodecanoic acid (PFDA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluorododecanoic acid (PFDoA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoroheptanoic acid (PFHpA)1 ND ND ND ND ND ND --2 ND ND --ND ND --ND ND --1 ND ND ND
4
EaglePoint_CC29L2 EaglePoint_CC29L4 CC29L4
6 71
Beacon Woods Well Source-5515 Bernhardt
3
EaglePoint_CC29L3
5
EaglePoint_CC29L1 Foxcroft Well Source- 326
Kingston Rd.
TR0795 Page 1 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location Cameron
Trace Well
Location ID 2
Sample Date 6/19/2019 7/13/2020 4/6/2021 10/5/2021 1/26/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 6/10/2020 3/23/2021 10/5/2021
4
EaglePoint_CC29L2 EaglePoint_CC29L4 CC29L4
6 71
Beacon Woods Well Source-5515 Bernhardt
3
EaglePoint_CC29L3
5
EaglePoint_CC29L1 Foxcroft Well Source- 326
Kingston Rd.
Perfluorohexadecanoic acid (PFHxDA)--ND ND ND ND ND ND ----ND ND --1 1 --ND ND ------ND ND
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)1 ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluorohexanoic acid (PFHxA)2 ND ND ND ND ND ND --4 ND ND --ND ND --ND ND --1 ND ND ND
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)ND ND ND ND ND ND ND ----ND ND --2 2 --ND ND ----ND ND ND
Perfluorononanoic acid (PFNA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluorooctadecanoic acid (PFODA) --ND ND ND ND ND ND ----ND ND --ND ND --ND ND ------ND ND
Perfluorooctane sulfonamide (PFOSA or PFOSAm)ND ND ND ND ND ----------------------------ND ND ND
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)1 ND ND ND ND ND ND ----ND ND 13 ND ND --ND ND ----ND ND ND
Perfluorooctanoic acid (PFOA)2 ND ND ND ND ND ND --1 ND ND --ND ND --ND ND ----ND ND ND
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)ND ND ND ND ND ND ND ----ND ND --1 1 --ND ND ----ND ND ND
Perfluoropentanoic acid (PFPeA)3 ND ND ND ND ND ND --4 ND ND --ND ND --ND ND --1 ND ND ND
Perfluorotetradecanoic acid (PFTeDA or PFTDA)ND ND ND ND ND ND ND ----ND ND --3 2 --ND ND ----ND ND ND
Perfluorotridecanoic acid (PFTrDA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Perfluoroundecanoic acid (PFUdA or PFUnDA)ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)--ND ND ND ND ND ND ----ND ND --ND ND --ND ND ----ND ND ND
Total Table 3+ Compounds (17 Compounds) (ng/L)180 9 ND ND ND ND ND ND 1 ND ND ND ND 1 ND ND ND ND ND ND ND ND
Total Table 3+ Compounds (20 Compounds) (ng/L)180 9 ND ND ND ND ND --1 ND ND --ND 1 --ND ND ----ND ND ND
Total Other PFAS (ng/L)18 ND ND ND 1 ND ND ND 14 ND 2 19 13 17 3 ND ND ND 4 ND ND ND
Total of all Compounds (ng/L)190 9 ND ND 1 ND ND --15 ND 2 19 13 18 3 ND ND --4 ND ND ND
TR0795 Page 2 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
6/11/2020 4/6/2021 10/5/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/9/2021 7/2/2019 8/27/2019 7/7/2021 1/23/2019 3/27/2019 10/28/2021 10/1/2019 6/10/2020 4/6/2021 6/24/2020 4/6/2021
ND ND ND ND ND ----ND ND --ND ND --58 81 --2 ND 2 ND ND
------------------------------6 ----------
ND 2 4 2 3 --8 ND ND --ND ND --850 --500 2 ND 49 ND ND
ND ND ND ND 2 ----ND ND --ND ND --780 --72 16 ND 8 ND ND
ND ND ND ND ND ----ND ND --ND ND --210 --19 13 ND 3 ND ND
ND ND ND ND ND ----ND ND --ND ND --38 --3 3 ND ND ND ND
ND ND ND ND ND ----ND ND
--
ND ND
--
ND ----ND ND ND ND ND
----ND ND ND ----ND ND --ND ND --11 ----ND ND ND ND ND
--ND ND ND ND ----ND ND --ND ND --5 ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --7 ----ND ND ND ND ND
--ND ND ------------------------------2 --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ------------------------------ND --ND
--ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ------------------------------------
ND ND ND ----------ND ----ND --------ND ND ND ND ND
ND ND ND ------------------------------------
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
----ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
--ND ND --ND ----ND ND --ND ND --------ND ND ND ND ND
ND ND ND 7 9 --11 ------------1 --------------
ND ND ND 12 19 5 8 ND ND --ND ND --2 --1 1 ND ND ND ND
ND ND ND ND ND ----ND 1 --ND ND --ND ----ND ND 1 ND ND
ND ND ND ND ND ----ND ND --ND ND --1 ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND 1 1 ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND 10 10 5 7 ND ND --ND ND --3 ----ND ND ND ND ND
12
MyrtleGrove_EE30M1 EE30M1
9
MyrtleGrove_EE30M2 EE30M2
10
MyrtleGrove_EE30M3 EE30M3
11 148
NC0465010-W31 Queens Point
Well #31 - 136 E
13
NC0465010-W40
Pirates Cove Well #40 -
401 Windward Dr
Masonboro Forest Well Source-
401 Navaho NC0465010-ASR WELL
TR0795 Page 3 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
6/11/2020 4/6/2021 10/5/2021 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/9/2021 7/2/2019 8/27/2019 7/7/2021 1/23/2019 3/27/2019 10/28/2021 10/1/2019 6/10/2020 4/6/2021 6/24/2020 4/6/2021
12
MyrtleGrove_EE30M1 EE30M1
9
MyrtleGrove_EE30M2 EE30M2
10
MyrtleGrove_EE30M3 EE30M3
11 148
NC0465010-W31 Queens Point
Well #31 - 136 E
13
NC0465010-W40
Pirates Cove Well #40 -
401 Windward Dr
Masonboro Forest Well Source-
401 Navaho NC0465010-ASR WELL
--ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND 23 23 8 9 ND ND --ND ND --1 ----ND ND ND ND ND
ND ND 19 20 10 13 ND ND --ND ND --3 ----1 ND 1 ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND 1 ND ND
ND ND ND 1 2 --1 ND ND --ND ND --1 ----ND ND ND ND ND
--ND ND --------ND ND --ND ND --------ND ND ND ND ND
ND ND ND ND ND ----------------ND ------ND ND ND ND
ND ND ND 41 40 26 35 ND ND --ND ND --3 --1 ND ND ND ND ND
ND ND ND 33 38 18 25 1 ND 2 4 3 --3 ----1 ND ND ND ND
ND ND ND 1 2 --1 2 3 --1 1 --ND ----ND ND 1 ND ND
ND ND ND 18 18 9 10 ND ND --ND ND --8 --2 1 ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND 1 ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND ND ND ----ND ND --ND ND --ND ----ND ND ND ND ND
ND ND ND --------ND ND --ND ND --------ND ND ND ND ND
ND 2 4 2 5 ND 8 ND ND ND ND ND ND 2,000 81 600 36 ND 63 ND ND
ND 2 4 2 5 --8 ND ND --ND ND --2,000 81 600 36 ND 65 ND ND
ND ND 1 170 180 80 120 3 4 2 5 4 ND 24 ND 4 4 ND 4 ND ND
ND 2 4 170 180 81 130 3 4 2 5 4 --2,000 81 600 41 ND 69 ND ND
TR0795 Page 4 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
NC0465010-
WBW
Beacon
Woods Well
(DEQ)
NC046501
0-WFO
Foxcroft
Well
(DEQ)
NC0465010-
WMF
Masonboro
Forest Well
(DEQ)
NC046501
0-WSP
Sea Pines
Well
(DEQ)
16 18 20 22
6/19/2019 7/31/2019 7/13/2020 4/6/2021 6/19/2019 6/19/2019 7/31/2019 6/10/2020 3/23/2021 6/19/2019 6/19/2019 7/31/2019 6/11/2020 4/6/2021 6/19/2019 6/19/2019 7/31/2019 6/11/2020 4/6/2021 6/19/2019
12 ND ND ND 12 ND 3 ND ND ND ND ND ND ND ND 1 10 11 11 1
----------------------------------------
73 ND ND ND 73 ND 6 ND ND ND ND ND ND 2 ND 11 64 89 570 11
57 ND ND ND 57 ND 5 ND ND ND ND ND ND ND ND 9 63 51 50 9
21 ND ND ND 21 ND ND ND ND ND ND ND ND ND ND 1 17 18 23 1
3 ND ND ND 3 ND ND ND ND ND ND ND ND ND ND ND 2 2 2 ND
ND ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
8 ND 9 ND --ND 5 ND ND --ND ND ND ND --2 9 11 ND --
3 ND ND ND --ND 3 ND ND --ND ND ND ND --ND 6 ND 5 --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND --------ND --------ND --------14 --
------ND --------ND --------ND --------ND --
------ND --------ND --------ND --------ND --
------ND --------ND --------ND --------ND --
------ND --------ND --------ND --------ND --
------ND --------ND --------ND --------2 --
------ND --------ND --------ND --------ND --
------ND --------ND --------ND --------ND --
ND ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
----------------------------------------
----ND ND 8 ----ND ND ND ----ND ND ND --------2
--------3 --------ND --------ND --------ND
--ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
ND ND ND ND ----ND ND ND ----ND ND ND ----ND ND ND --
ND ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
--ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
--ND ND ND ----ND ND ND ----ND ND ND ----ND ND ND --
ND ND ND ND ----ND ND ND ----ND ND ND ----ND ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 440 ND ND ND ND ND ND ND ND ND 110 ND ND ND ND 60
6 ND ND ND 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND --
ND ND ND ND ND --ND ND ND ND --ND ND ND ND --ND ND ND ND
--ND ND ND --ND ND ND ND --ND ND ND ND --ND --ND ND --
1 ------1 --------ND --------ND --1 1 1 ND
2 ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND 2 2 2 ND
ND ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND ND ND 1 ND ND ND ND ND ND ND ND ND ND ND 1 1 1 ND
15
NC0465010-WFO FOXCROFT WELL
17
NC0465010-WMF MASONBORO FOREST
WELL #43
19
NC0465010-WSP SEA PINES WELL #44
21
NC0465010-WBW BEACON WOODS
TR0795 Page 5 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
NC0465010-
WBW
Beacon
Woods Well
(DEQ)
NC046501
0-WFO
Foxcroft
Well
(DEQ)
NC0465010-
WMF
Masonboro
Forest Well
(DEQ)
NC046501
0-WSP
Sea Pines
Well
(DEQ)
16 18 20 22
6/19/2019 7/31/2019 7/13/2020 4/6/2021 6/19/2019 6/19/2019 7/31/2019 6/10/2020 3/23/2021 6/19/2019 6/19/2019 7/31/2019 6/11/2020 4/6/2021 6/19/2019 6/19/2019 7/31/2019 6/11/2020 4/6/2021 6/19/2019
15
NC0465010-WFO FOXCROFT WELL
17
NC0465010-WMF MASONBORO FOREST
WELL #43
19
NC0465010-WSP SEA PINES WELL #44
21
NC0465010-WBW BEACON WOODS
--ND ND ND --ND 1 ND ND --ND ND ND ND --ND ND ND ND --
1 ND ND ND 1 --ND ND ND ND --ND ND ND ND --ND ND ND ND
2 ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND 1 2 2 ND
ND ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND --ND ND ND ND --ND ND ND ND --ND --ND ND --
ND --ND ND ND ----ND ND ND ----ND ND ND --ND ND ND ND
1 ND ND ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
2 ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND 1 2 2 ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 ND ND ND 3 ND ND ND ND ND ND ND ND ND ND ND 3 3 3 ND
ND ND ND ND ND ND 3 ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND --ND ND ND ND --ND ND ND ND --ND --------
180 ND 9 ND 180 ND 23 ND ND ND ND ND ND 2 ND 25 170 180 670 25
180 ND 9 ND 180 ND 23 ND ND ND ND ND ND 2 ND 24 170 180 680 24
18 ND ND ND 460 ND 7 ND ND ND ND ND ND ND 110 ND 9 10 10 60
190 ND 9 ND 630 ND 30 ND ND ND ND ND ND 2 110 24 180 190 690 84
TR0795 Page 6 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
3/27/2019 6/11/2020 4/6/2021 10/28/2021 5/31/2019 6/19/2019 5/31/2019 6/19/2019 8/1/2019 6/20/2019 8/1/2019 4/29/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 3/23/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021
9 10 8 --ND ND 2 2 2 ND ND ND ND ND ND ND ND ND ND ND ND ND
------8 ------------------------------------
64 88 340 260 ND ND 12 10 8 ND ND ND ND ND ND ND ND ND ND ND ND ND
56 50 48 64 ND ND 8 8 9 ND ND ND ND ND ND ND ND ND ND ND ND ND
15 18 18 19 ND ND 2 3 2 ND ND ND ND ND ND ND ND ND ND ND ND ND
2 3 3 2 ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4 8 ND --ND ND 1 1 ND ND ND ND ND ND ND 5 ND ND ND ND ND ND
3 ND 2 --ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----11 ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
----1 ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
----ND ------------------------ND ND ------ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------
--------------------------ND ND ND ND --ND ND ND ND
--------------------------------------------
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND --ND ND ------ND ND ND ND ND ND ND 1 ND ND ND ND ND
2 3 3 4 ----19 22 22 --------------------------
2 3 3 4 ND ND 4 6 5 3 ND 1 1 1 ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND 3 ND ND ND 1 ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND
2 2 2 3 ND ND 3 4 3 ND ND ND ND ND ND ND ND ND ND ND ND ND
NC0465010-WSS SEA SPRAY WELL #34
23 24 26 28
NC0465112-W02 WELL #1
25
NC0465137-W01 WELL #1
27
NC0465025-W05
WELL #5
NC0465121-200
WELL #2 NC0465137-W02 WELL #2
TR0795 Page 7 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
3/27/2019 6/11/2020 4/6/2021 10/28/2021 5/31/2019 6/19/2019 5/31/2019 6/19/2019 8/1/2019 6/20/2019 8/1/2019 4/29/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 3/23/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021
NC0465010-WSS SEA SPRAY WELL #34
23 24 26 28
NC0465112-W02 WELL #1
25
NC0465137-W01 WELL #1
27
NC0465025-W05
WELL #5
NC0465121-200
WELL #2 NC0465137-W02 WELL #2
ND ND ND --ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND
3 3 3 4 ND ND 5 6 5 ND ND ND ND ND ND ND ND ND ND ND ND ND
3 4 3 3 ND ND 8 7 6 5 ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND 5 ND ND 1 1 ND 1 ND ND ND ND ND ND
ND ND ND --ND ND 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND --ND ND ------ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ------ND ND ND ----------ND ND ND ----ND ND ND
5 9 8 8 ND ND 22 29 20 ND ND ND ND ND ND ND ND ND ND ND ND ND
4 5 5 6 ND ND 11 12 9 12 ND 1 1 2 ND ND ND ND ND ND ND ND
ND ND ND 1 ND ND 1 1 1 6 ND 1 1 1 ND 1 ND ND ND ND ND ND
3 4 3 4 ND ND 7 8 7 1 ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND 5 ND 1 2 1 1 1 ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------ND ND ------ND ND ND ND ND ND ND ND ND ND ND ND ND
150 180 430 350 ND ND 25 26 21 ND ND ND ND ND ND 5 2 ND ND ND ND ND
150 180 430 350 ND ND 25 26 21 ND ND ND ND ND ND 5 2 ND ND ND ND ND
27 32 29 36 ND ND 81 97 80 41 ND 3 5 6 1 3 1 ND ND ND ND ND
180 210 460 380 ND ND 110 120 100 41 ND 3 5 6 1 8 3 ND ND ND ND ND
TR0795 Page 8 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
4/29/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/1/2019 6/11/2020 10/6/2020 4/6/2021 1/28/2020 10/6/2020 1/28/2020 10/6/2020 6/20/2019 8/1/2019
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------------------------------
ND 2 ND ND 10 ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND
ND 3 ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND 3 ND ND ND ND ND ND ND 19 ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND 1 ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
--------ND ND ----ND ND ----ND ND --ND --ND ----
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------------------------------
----ND ND ND ND ND ND ND 5 ND ND ND ND ND ND ND ND ----
----------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------------------------------
3 6 3 3 3 ND ND ND ND ND ND ND ND ND ND ND ND ND 4 5
1 2 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 2 2
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
NC0465137-W05 Well #5 - 225 McQuillan Dr
29
NC0465137-W03 WELL #3 NC0465137-W04 Well #4 - 6608 Chorley Rd
30
NC0465137-W07 Well #7
- 5401 Myrtle Grove Rd
33
NC0465138-W02
WELL #2
343132
NC0465137-W06 Well
#6 - 124 Southwold Dr
TR0795 Page 9 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
4/29/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/1/2019 6/11/2020 10/6/2020 4/6/2021 1/28/2020 10/6/2020 1/28/2020 10/6/2020 6/20/2019 8/1/2019
NC0465137-W05 Well #5 - 225 McQuillan Dr
29
NC0465137-W03 WELL #3 NC0465137-W04 Well #4 - 6608 Chorley Rd
30
NC0465137-W07 Well #7
- 5401 Myrtle Grove Rd
33
NC0465138-W02
WELL #2
343132
NC0465137-W06 Well
#6 - 124 Southwold Dr
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2 2
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4 7 4 5 4 ND ND ND ND ND ND ND ND ND ND ND ND ND 2 2
ND ND ND ND ND ND ND ND ND 9 ND ND ND ND ND ND ND ND 4 3
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ND ND --ND ND ND --ND ND ND ND ND ND ND ----
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 16 15
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 7 5
1 2 1 2 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4 4
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND 4 ND 2 10 ND ND ND ND 12 ND ND ND ND ND ND ND 19 ND ND
ND 4 ND 2 10 ND ND ND ND 12 ND ND ND ND ND ND ND 19 ND ND
8 17 9 11 8 ND ND ND ND 9 ND ND ND ND ND ND ND ND 41 37
8 21 9 12 18 ND ND ND ND 22 ND ND ND ND ND ND ND 19 41 37
TR0795 Page 10 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
NC0465199-
W2A
WELL
#6_SANDE
RS RD
NC046523
2-APD
WELL A -
PEE DEE
NC04652
32-BCH
WELL B -
CASTLE
HAYNE
NC046523
2-CCH
WELL C -
CASTLE
HAYNE
NC04652
32-CPD
WELL C -
PEE
DEE
NC0465232-
FCH
WELL F -
CASTLE
HAYNE
NC046523
2-FPD
WELL F -
PEE DEE
NC046523
2-GCH
WELL G -
CASTLE
HAYNE
NC04652
32-GPD
WELL G
- PEE
DEE
NC0465232-
HCH
WELL H -
CASTLE
HAYNE
NC046523
2-HPD
WELL H -
PEE DEE
NC046523
2-ICH
WELL I -
CASTLE
HAYNE
NC04652
32-IPD
WELL I -
PEE
DEE
NC046523
2-JCH
WELL J -
CASTLE
HAYNE
NC046523
2-JPD
WELL J -
PEE DEE
NC046523
2-KCH
WELL K -
CASTLE
HAYNE
37 38 39 41 42 43 44 45 46 47 48 49 50 51 52 53
6/20/2019 8/1/2019 6/20/2019 8/1/2019 1/23/2020 5/9/2019 5/9/2019 5/9/2019 3/23/2021 5/9/2019 5/9/2019 7/16/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019
ND ND 1 1 ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------
ND ND 5 7 2 11 ND ND 3 ND ND ND ND ND ND ND ND ND 2 2 ND ND
ND ND 4 5 ND 7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 2 ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
----------------ND --------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------
--------ND ------ND --------------------------
--------------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------
2 2 1 1 2 ND ND ND ND ND 3 ND 2 ND ND ND ND ND 4 ND ND ND
2 2 1 ND 1 ND ND ND ND ND 1 ND 1 ND ND ND ND ND 1 ND ND 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
40
NC0465198-001
WELL #1
3635
NC0465165-W02
WELL #2
NC0465232-BPD
WELL B - PEE DEE
TR0795 Page 11 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
NC0465199-
W2A
WELL
#6_SANDE
RS RD
NC046523
2-APD
WELL A -
PEE DEE
NC04652
32-BCH
WELL B -
CASTLE
HAYNE
NC046523
2-CCH
WELL C -
CASTLE
HAYNE
NC04652
32-CPD
WELL C -
PEE
DEE
NC0465232-
FCH
WELL F -
CASTLE
HAYNE
NC046523
2-FPD
WELL F -
PEE DEE
NC046523
2-GCH
WELL G -
CASTLE
HAYNE
NC04652
32-GPD
WELL G
- PEE
DEE
NC0465232-
HCH
WELL H -
CASTLE
HAYNE
NC046523
2-HPD
WELL H -
PEE DEE
NC046523
2-ICH
WELL I -
CASTLE
HAYNE
NC04652
32-IPD
WELL I -
PEE
DEE
NC046523
2-JCH
WELL J -
CASTLE
HAYNE
NC046523
2-JPD
WELL J -
PEE DEE
NC046523
2-KCH
WELL K -
CASTLE
HAYNE
37 38 39 41 42 43 44 45 46 47 48 49 50 51 52 53
6/20/2019 8/1/2019 6/20/2019 8/1/2019 1/23/2020 5/9/2019 5/9/2019 5/9/2019 3/23/2021 5/9/2019 5/9/2019 7/16/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019 5/9/2019
40
NC0465198-001
WELL #1
3635
NC0465165-W02
WELL #2
NC0465232-BPD
WELL B - PEE DEE
1 1 1 1 1 ND ND ND ND ND 1 ND ND ND ND ND ND ND 2 ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 3 3 4 1 1 ND ND ND ND 1 ND ND ND ND ND ND ND 1 ND ND ND
2 2 1 2 1 1 ND ND ND ND 2 ND 1 ND ND ND ND ND 3 ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------ND ------ND --------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12 11 2 1 4 1 ND ND ND ND 5 ND 3 ND ND ND ND ND 5 ND ND ND
3 3 1 ND 2 1 ND ND ND ND 4 ND 2 ND ND ND ND ND 4 ND ND ND
ND ND 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
2 3 1 2 1 2 ND ND ND 1 2 ND 1 ND ND ND ND ND 3 ND ND 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND 10 14 2 22 ND ND 3 ND ND ND ND ND ND ND ND ND 2 2 ND ND
ND ND 10 14 2 22 ND ND 3 ND ND ND ND ND ND ND ND ND 2 2 ND ND
28 27 11 10 13 6 ND 2 ND 1 19 ND 10 ND ND ND ND ND 23 ND ND 2
28 27 21 24 15 27 ND 2 3 1 19 ND 10 ND ND ND ND ND 24 2 ND 2
TR0795 Page 12 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
NC04652
32-KPD
WELL K
- PEE
DEE
NC046523
2-LCH
WELL L -
CASTLE
HAYNE
NC046523
2-LPD
WELL L -
PEE DEE
NC046523
2-QPD
WELL Q -
PEE DEE
NC0465232-
W19 Well
#19 - 110
Marsh Oaks
Dr
NC046523
2-W30
WELL# 30
O
NC046523
2-WCT
Cameron
Trace Well
54 55 56 58 61 65 66
5/9/2019 5/9/2019 5/9/2019 5/9/2019 10/28/2021 5/9/2019 5/6/2019 6/10/2020 4/5/2021 5/6/2019 7/7/2020 4/5/2021 5/19/2021 10/4/2021 10/1/2019 5/6/2019 1/23/2020 6/10/2020 4/5/2021 3/27/2019 5/9/2019 3/27/2019 5/9/2019 5/9/2019 1/26/2021
ND ND ND 12 --ND ND ND ND 1 1 1 ND 1 ND ND ND ND ND 4 8 2 2 ND ND
--------4 ----------------------------------------
1 ND ND 110 150 2 1 ND 13 3 4 24 13 53 ND ND ND ND 1 26 52 13 12 6 ND
ND ND ND 86 38 ND 2 ND 2 2 2 4 2 2 ND ND ND ND ND 21 41 12 7 4 ND
ND ND ND 19 11 ND ND ND ND ND ND 2 ND ND ND ND ND ND ND 5 10 4 2 1 ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 11 --ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3 8 2 ND ND ND
ND ND ND 2 --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5 ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------ND ----1 ND ND --------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
----------------ND ----ND ------------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
----------------ND ----ND ND ND --------ND ----------ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------------------------ND ND ----------------------
--------------ND ND --ND ND ND ND ND --ND ND ND ----------ND
------------------------ND ND ----------------------
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ----ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND --ND ND ND ND
------3 2 --------------1 1 ------------ND --------
ND ND ND 7 3 1 ND ND 1 2 2 2 1 1 3 ND ND ND ND ND 1 ND ND ND ND
ND ND ND ND --ND 1 ND 1 ND ND ND ND ND 4 6 ND ND ND ND ND ND 6 ND 1
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 3 2 ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND 2 ND ND ND ND
NC0465232-PPD
WELL P - PEE DEE
57 59 62 63
NC0465232-W29
WELL# 29 NNC0465232-W15 WELL #15 ELKMONT
60 64
NC0465232-W04 WELL #4
WHITE RD
NC0465232-W20 WELL #20 OLD MARSH
OAKS#2
NC0465232-W28
WELL #28 M
TR0795 Page 13 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
NC04652
32-KPD
WELL K
- PEE
DEE
NC046523
2-LCH
WELL L -
CASTLE
HAYNE
NC046523
2-LPD
WELL L -
PEE DEE
NC046523
2-QPD
WELL Q -
PEE DEE
NC0465232-
W19 Well
#19 - 110
Marsh Oaks
Dr
NC046523
2-W30
WELL# 30
O
NC046523
2-WCT
Cameron
Trace Well
54 55 56 58 61 65 66
5/9/2019 5/9/2019 5/9/2019 5/9/2019 10/28/2021 5/9/2019 5/6/2019 6/10/2020 4/5/2021 5/6/2019 7/7/2020 4/5/2021 5/19/2021 10/4/2021 10/1/2019 5/6/2019 1/23/2020 6/10/2020 4/5/2021 3/27/2019 5/9/2019 3/27/2019 5/9/2019 5/9/2019 1/26/2021
NC0465232-PPD
WELL P - PEE DEE
57 59 62 63
NC0465232-W29
WELL# 29 NNC0465232-W15 WELL #15 ELKMONT
60 64
NC0465232-W04 WELL #4
WHITE RD
NC0465232-W20 WELL #20 OLD MARSH
OAKS#2
NC0465232-W28
WELL #28 M
ND ND ND ND --ND 1 ND 1 1 1 1 ND ND 2 ND ND ND ND ND ND ND ND ND ND
ND ND ND 5 2 ND ND ND ND ND ND ND 3 3 ND ND ND ND ND ND 2 ND ND ND ND
ND ND ND 6 2 4 1 ND 2 4 4 4 1 1 2 ND ND ND ND 1 3 1 1 2 ND
ND ND ND ND --2 1 ND 1 2 2 2 ND ND 3 ND ND ND ND 1 ND ND 1 1 ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ----ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND --ND ND ND ND
------ND ------ND ND --ND ND ND ND ----ND ND ND --ND ------ND
ND ND ND 9 4 ND ND ND ND ND ND ND 2 1 ND ND ND ND ND ND 3 ND ND ND ND
ND ND ND 6 3 2 1 ND 1 2 2 2 ND 1 3 ND 8 ND ND 1 4 1 1 1 ND
ND ND ND ND --1 1 ND 2 1 2 1 ND 3 ND ND ND ND 2 ND 1 1 2 ND
ND ND ND 7 3 ND ND ND ND 1 1 1 1 1 ND ND ND ND ND ND 4 ND ND ND ND
ND ND ND ND --2 1 ND 1 2 2 2 ND ND 3 ND ND ND ND 2 ND 1 1 1 ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ----ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND --ND ND ND ND
1 ND ND 240 200 2 3 ND 15 6 7 30 15 56 ND ND ND ND 1 59 120 33 23 11 ND
1 ND ND 240 200 2 3 ND 15 6 7 32 16 56 ND ND ND ND 1 59 120 33 23 11 ND
ND ND ND 46 21 11 8 ND 9 15 14 15 8 11 22 6 8 ND ND 6 18 3 10 7 1
1 ND ND 280 230 13 10 ND 24 21 22 46 24 67 22 6 8 ND 1 65 140 36 33 17 1
TR0795 Page 14 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
NC046545
9-W01
WELL #1
NC046552
0-0G2
WELL
0G2
NC046554
4-W01
WELL #1
NC046557
6-S02
WELL #2
NC046562
5-W01
WELL #1
67 70 72 73 75
1/23/2020 6/19/2019 7/31/2019 6/19/2019 7/31/2019 1/23/2020 5/31/2019 6/20/2019 8/1/2019 1/23/2020 1/23/2020 5/31/2019 6/19/2019 7/31/2019 1/23/2020 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 1/23/2020
ND ND ND ND ND 3 15 19 18 ND ND 3 4 3 ND ND ND ND ND ND ND
------------------------------------------
ND ND 1 ND ND 30 96 96 100 ND ND 15 22 13 1 ND ND 3 ND ND ND
ND ND ND ND ND 27 74 87 92 1 ND 15 20 12 2 ND ND ND ND ND ND
ND ND ND ND ND 4 24 32 26 ND ND 3 4 3 ND ND ND ND ND ND ND
ND ND ND ND ND ND 4 5 3 ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND 6 7 6 8 ND ND 2 2 2 ND ND ND ND ND ND ND
ND ND ND ND ND 2 5 5 4 ND ND ND ND 1 ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------------------------------------------
ND ------------------ND ------------------ND
------------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ------ND ND ND --ND ND ND ND ND ND ND ND
----------1 6 7 7 10 ----1 --5 ------------
ND ND ND ND ND 3 4 4 5 15 ND 1 1 1 2 ND ND 1 1 ND ND
ND ND ND ND ND ND ND ND ND ND ND 1 ND 1 ND ND ND ND 4 ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND 1 ND ND ND ND 1 ND ND ND ND ND ND
ND ND ND ND ND ND 4 5 4 5 ND ND 1 ND 1 ND ND ND ND ND ND
NC0465644-W01
WELL #1
NC7010071-W01
WELL #1
NC0465508-S02
WELL#2
77 786968717476
NC0465635-W01
WELL #1
NC0465465-W02
WELL #2 NC0465532-002 WELL #2 NC0465617-W01 WELL #1
TR0795 Page 15 of 34 February 2022
(In Brunswick County)
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
NC046545
9-W01
WELL #1
NC046552
0-0G2
WELL
0G2
NC046554
4-W01
WELL #1
NC046557
6-S02
WELL #2
NC046562
5-W01
WELL #1
67 70 72 73 75
1/23/2020 6/19/2019 7/31/2019 6/19/2019 7/31/2019 1/23/2020 5/31/2019 6/20/2019 8/1/2019 1/23/2020 1/23/2020 5/31/2019 6/19/2019 7/31/2019 1/23/2020 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 1/23/2020
NC0465644-W01
WELL #1
NC7010071-W01
WELL #1
NC0465508-S02
WELL#2
77 786968717476
NC0465635-W01
WELL #1
NC0465465-W02
WELL #2 NC0465532-002 WELL #2 NC0465617-W01 WELL #1
ND ND ND ND ND ND ND ND ND ND ND 1 ND 1 ND ND ND 1 1 ND ND
ND ND ND ND ND 2 6 7 7 8 ND ND 6 ND 61 ND ND ND ND ND ND
ND ND ND ND ND 2 7 8 7 16 ND 6 2 5 37 1 1 1 1 ND ND
ND ND ND ND ND ND ND ND ND ND ND 2 ND 1 ND ND ND 2 1 ND ND
ND ND ND ND ND ND 1 1 1 1 ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ------ND ND ND --ND ND ND ND ND ND ND ND
ND --------ND ND ND ND ND ND --ND --ND ----------ND
ND ND ND ND ND 6 12 14 13 61 ND ND 12 ND 23 ND ND ND ND ND ND
1 ND ND 2 ND 1 10 11 11 17 ND 10 4 8 19 ND 1 3 2 ND ND
ND ND ND ND ND ND ND 1 1 2 ND 4 1 3 4 ND ND 2 2 ND ND
ND ND ND ND ND 2 7 9 8 21 ND 1 2 1 5 ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND 2 ND 1 ND ND ND 2 1 ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ----------ND ND --ND --ND ND ND ND ND ND
ND ND 1 ND ND 73 220 250 250 1 ND 38 52 35 3 ND ND 3 ND ND ND
ND ND 1 ND ND 74 220 250 250 1 ND 39 52 34 3 ND ND 3 ND ND ND
1 ND ND 2 ND 16 56 66 63 160 ND 28 30 21 160 1 2 12 12 ND ND
1 ND 1 2 ND 90 280 320 310 160 ND 66 82 55 160 1 2 15 12 ND ND
TR0795 Page 16 of 34 February 2022
(In Brunswick County)
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
NC706504
3-W01
WELL #1
84
5/31/2019 6/19/2019 7/31/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 1/23/2020 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021
1 3 11 ND ND ND ND ND ND ND ND ND 360 350 230 --ND ND --ND ND --
------------------------------250 ------------
9 19 63 ND ND ND ND ND ND ND ND ND 2,800 2,900 --13,000 ND ND --ND ND --
9 19 63 ND ND ND ND ND ND ND ND ND 2,800 2,900 --2,800 ND ND --ND ND --
3 5 14 ND ND ND ND ND ND ND ND ND 810 740 --650 ND ND --ND ND --
ND 2 3 ND ND ND ND ND ND ND ND ND 110 140 --130 ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND --18 ND ND --ND ND --
ND ND 4 ND ND ND ND ND ND ND ND ND 71 73 ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND 42 77 ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ND ND ND ND ND ND ND ND ND ND 20 21 --26 ND ND --ND ND --
--------------------------------------------
--------------------------------------------
--------------------------------------------
--------------------------------------------
--------------------------------------------
--------------------------------------------
--------------------------------------------
--------------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
--------------------------------------------
----------------------ND ----------ND ----ND --
--------------------------------------------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND --ND ND ND ND ND ND ND ND ND --ND ----ND ND --ND ND --
----1 ------------------6 6 5 6 ------------
ND ND 6 2 1 ND ND ND ND ND ND ND 16 18 11 19 ND ND --ND ND --
1 3 ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND 1 1 --1 ND ND --ND ND --
ND ND 2 ND ND ND ND ND ND ND ND 1 14 17 11 13 ND ND --ND ND --
NewHanoverCorrectionalInstitute_CC31U1
CC31U1
85
NorthernRegionalPark_CC30E1 NorthernRegionalPark_CC30E2
86 87
NC7065012-S02
WELL #2
NC7065016-S01
WELL #1
NC7065022-S01
WELL#1NC7065011-W01 WELL #1
8380818279
NC7065035-W01 WELL
#1
TR0795 Page 17 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
NC706504
3-W01
WELL #1
84
5/31/2019 6/19/2019 7/31/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 6/20/2019 8/1/2019 1/23/2020 7/2/2019 8/27/2019 7/7/2021 10/28/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021
NewHanoverCorrectionalInstitute_CC31U1
CC31U1
85
NorthernRegionalPark_CC30E1 NorthernRegionalPark_CC30E2
86 87
NC7065012-S02
WELL #2
NC7065016-S01
WELL #1
NC7065022-S01
WELL#1NC7065011-W01 WELL #1
8380818279
NC7065035-W01 WELL
#1
ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND 3 ND ND ND ND ND ND ND ND ND 8 8 5 7 ND ND --ND ND --
1 2 3 2 1 ND ND ND ND ND ND ND 17 16 13 19 ND ND --ND ND --
1 2 ND 1 ND 1 ND ND ND ND ND ND ND ND ----ND ND --ND ND --ND ND ND ND ND ND ND ND ND ND ND ND 4 4 3 4 ND ND --ND ND --
ND ND --ND ND ND ND ND ND ND ND ND --------ND ND --ND ND --
----ND ----------------ND ND ND ----------------
ND ND 6 ND ND ND ND ND ND ND ND ND 36 40 24 31 ND ND --ND ND --
1 3 4 5 2 1 1 1 1 ND ND 46 22 24 16 22 ND ND --ND ND --
1 2 ND 1 1 1 1 ND ND ND ND ND 1 2 --2 ND ND --ND ND --
ND ND 5 ND ND ND ND ND ND ND ND ND 59 58 41 47 ND ND --ND ND --
1 2 ND 1 ND ND 1 1 ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ----ND ND --ND ND --
ND ND --ND ND ND ND ND ND ND ND ND --------ND ND --ND ND --
22 48 160 ND ND ND ND ND ND ND ND ND 7,000 7,200 230 17,000 ND ND ND ND ND ND
22 48 160 ND ND ND ND ND ND ND ND ND 7,100 7,200 230 17,000 ND ND --ND ND --
6 13 30 10 4 3 2 2 1 ND ND 47 180 190 130 170 ND ND ND ND ND ND
27 61 190 10 4 3 2 2 1 ND ND 46 7,300 7,400 360 17,000 ND ND --ND ND --
TR0795 Page 18 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
RWTP
Combined
Permeate
RWTP
Train 101
PEE DEE
RWTP
Train 102
PEE DEE
RWTP
Train
CASTLE
HAYNE
94 95 96 97
7/2/2019 8/27/2019 7/7/2021 6/24/2020 4/6/2021 10/5/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 10/1/2019 6/10/2020 4/6/2021 10/5/2021 5/19/2021 5/19/2021 5/19/2021 5/19/2021
ND ND --ND ND ND ND ND --ND ND --ND ND --2 ND 2 2 ND ND ND ND
----------------------------------------------
ND ND --ND ND 2 ND ND --ND ND --ND ND --2 ND 49 140 ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --16 ND 8 8 ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --13 ND 3 5 ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --3 ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND ----ND ND ND ND ND ND ND
ND ND ------ND ND ND --ND ND --ND ND --------ND --------
4 ND ----ND ND ND ND --ND ND --ND ND ------ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
--------ND ND ----------------------2 ND ND ND ND ND
--------ND ND ----------------------ND ND ND ND ND ND
--------ND ND ----------------------ND ND ND ND ND ND
----------ND ------------------------ND --------
--------ND ND ----------------------ND ND ND ND ND ND
--------ND ND ----------------------ND ND ND ND ND ND
--------ND ND ----------------------ND ND ND ND ND ND
--------ND ND ----------------------ND ND ND ND ND ND
ND ND ----ND ND ND ND --ND ND --ND ND ------ND ND ND ND ND ND
------ND ND ND ------------------ND ND ND ND ND ND ND ND
--ND --ND ND ND --ND ----ND ----ND --ND ND ND ND ND ND ND ND
------ND ND ND ------------------ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND ------ND ND ND --ND ND --ND ND --------ND --------
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND 3 --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND ----ND ND ND ND --ND ND --ND ND ------ND ND ND ND ND ND
------ND ND ND ------------------1 ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --2 1 --ND ND --ND ND 1 ND ND ND ND ND
ND ND --ND ND ND ND ND --ND 2 --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND
938988909192
Queens Point Well Source - 136 E. Bedford Rd.Pirates Cove Well Source-401
Windward Dr.NorthernRegionalPark_CC30E3 Presidio_EE30P1 EE30P1 Presidio_EE30P2 EE30P2 Presidio_EE30P3 EE30P3
TR0795 Page 19 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
RWTP
Combined
Permeate
RWTP
Train 101
PEE DEE
RWTP
Train 102
PEE DEE
RWTP
Train
CASTLE
HAYNE
94 95 96 97
7/2/2019 8/27/2019 7/7/2021 6/24/2020 4/6/2021 10/5/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 7/2/2019 8/27/2019 7/7/2021 10/1/2019 6/10/2020 4/6/2021 10/5/2021 5/19/2021 5/19/2021 5/19/2021 5/19/2021
938988909192
Queens Point Well Source - 136 E. Bedford Rd.Pirates Cove Well Source-401
Windward Dr.NorthernRegionalPark_CC30E3 Presidio_EE30P1 EE30P1 Presidio_EE30P2 EE30P2 Presidio_EE30P3 EE30P3
ND ND ----ND ND ND ND --ND 4 --ND ND --ND --ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --1 ND 1 1 ND ND ND ND
ND ND --ND ND ND ND ND --1 1 --ND ND --ND ND 1 1 ND ND ND ND
ND ND --ND ND ND ND ND --1 3 --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND ----ND ND ND ND --1 2 --ND ND ------ND ND ND ND ND ND
------ND ND ND ------------------ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND 14 ND ND --1 ND ND 1 ND ND ND ND
ND ND --ND ND ND ND ND --23 35 3 ND ND --ND ND 1 1 ND ND ND ND
ND ND --ND ND ND 1 1 --2 10 --ND ND --1 ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND 1 ND ND ND ND ND
ND ND --ND ND ND ND ND --ND 2 --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND --ND ND ND ND ND ND ND ND
ND ND --ND ND ND ND ND --ND ND --ND ND ----ND ND ND ND ND ND ND
4 ND ND ND ND 2 ND ND ND ND ND ND ND ND ND 36 ND 63 150 ND ND ND ND
4 ND --ND ND 2 ND ND --ND ND --ND ND --36 ND 65 160 ND ND ND ND
ND ND ND ND ND ND 1 1 ND 30 62 17 ND ND ND 4 ND 4 4 ND ND ND ND
4 ND --ND ND 2 1 1 --30 63 17 ND ND --41 ND 69 160 ND ND ND ND
TR0795 Page 20 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Well #1 -
7353 Quail
Woods Rd.
100
6/11/2020 4/6/2021 10/5/2021 3/27/2019 6/11/2020 4/6/2021 4/28/2021 10/5/2021 8/31/2021 4/29/2019 5/14/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 3/23/2021 10/7/2021 5/6/2019 7/7/2020 4/5/2021 5/19/2021 10/4/2021
11 11 11 9 10 8 8 7 ND ND ND ND ND ND ND ND ND 1 1 1 ND 1
--------------------------------------------
89 570 660 64 88 340 450 520 ND ND ND ND ND ND ND ND ND 3 4 24 13 53
51 50 46 56 50 48 47 42 ND ND ND ND ND ND ND ND ND 2 2 4 2 2
18 23 19 15 18 18 18 14 ND ND ND ND ND ND ND ND ND ND ND 2 ND ND
2 2 ND 2 3 3 3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND --ND ND ND ND ND --------ND ND ND ND --ND ND ND ND
----12 --------9 ND --------------ND --------ND
--5 5 ----2 2 2 ND ----------ND ND ND ----ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--14 14 ----11 12 14 ND ----------ND ND ND ----1 ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
----9 --------7 ND --------------ND --------ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
--2 2 ----1 ND ND ND ----------ND ND ND ----ND ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11 ND ND 4 8 ND ND ND ND ND ND ND ND ND 5 ND ND ND ND ND ND ND
ND ND ND 3 ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND --------ND ND --------------ND --------ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND 3 ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
--ND ND ----ND ND ND ND ----------ND ND ND ----ND ND ND
1 1 1 2 3 3 3 3 ND 1 1 ND 1 ND ND ND ND 2 2 2 1 1
2 2 2 2 3 3 3 3 ND ND ND ND 1 ND ND ND 1 ND ND ND 1 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 1 1 2 2 2 2 2 ND ND ND ND ND ND ND ND 1 1 1 ND 1
Well #1 Source-402 Cathay Rd
1019899 102
Well #15 Source-7520 Elkmont Ct.Sea Pines Well Source-4906
Waltmore Rd Sea Spray Well Source-915 Sea Spray Dr
TR0795 Page 21 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
Well #1 -
7353 Quail
Woods Rd.
100
6/11/2020 4/6/2021 10/5/2021 3/27/2019 6/11/2020 4/6/2021 4/28/2021 10/5/2021 8/31/2021 4/29/2019 5/14/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 3/23/2021 10/7/2021 5/6/2019 7/7/2020 4/5/2021 5/19/2021 10/4/2021
Well #1 Source-402 Cathay Rd
1019899 102
Well #15 Source-7520 Elkmont Ct.Sea Pines Well Source-4906
Waltmore Rd Sea Spray Well Source-915 Sea Spray Dr
--ND ND ND --ND ND ND ND ND ND ND ND --ND ND ND ND ND ND ND ND
ND ND 1 3 3 3 3 3 ND ND ND ND ND ND ND 4 4 4 3 3
2 2 2 3 4 3 3 3 ND ND 1 ND 1 ND 1 ND 1 2 2 2 1 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ----ND ND ND 2 ----------ND ND ND --ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND 5 9 8 7 6 1 1 1 ND 2 ND ND ND 2 2 2 2 1
2 2 1 4 5 5 5 4 1 1 ND 1 ND 1 ND 1 2 1 ND 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 1 1 ND
3 3 3 3 4 3 4 3 ND 1 1 1 1 1 1 ND 1 2 2 2 1 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
180 670 770 150 180 430 530 610 ND ND ND ND ND ND 5 2 ND 6 7 30 15 56
180 680 790 150 180 430 540 620 ND ND ND ND ND ND 5 2 ND 5 7 32 16 56
10 10 10 27 32 29 30 27 3 3 4 1 6 1 3 1 5 15 14 15 8 11
190 690 800 180 210 460 570 650 3 3 4 1 6 1 8 3 5 20 22 46 24 67
TR0795 Page 22 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Well #2 - 7200
Murrayville Rd.
104
10/1/2019 7/7/2020 4/5/2021 10/4/2021 8/31/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 5/6/2019 6/10/2020 4/5/2021 10/4/2021 4/29/2019 5/14/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------------------------------------
ND ND 2 6 ND ND ND ND ND ND ND ND ND 1 15 ND 2 ND ND ND 10 1 11
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 1 ND 2 ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND ND ----ND ND ND ND --ND ND ND --------ND ND ND ND
------ND ND ----------ND ------ND --------------ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
------ND ND ----------ND ------ND --------------ND
----ND ND ND ------ND ND ND ----ND ND ----------ND 1 ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3 ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ND ----------ND ------ND --------------ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ND ------ND ND ND ----ND ND ----------ND 5 ND
3 2 1 2 ND ND ND ND ND ND ND ND ND ND ND 3 3 3 3 3 3 ND 3
4 ND ND 2 ND ND ND ND ND ND ND 6 ND ND ND 1 1 1 1 1 1 ND 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
2 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
103 105 106 107
Well #19 Source-110 Marsh Oaks Dr.Well #2 Source-543 Cathay Rd.Well #20 Source- 208 Bayfield Dr.Well #3 Source-655 Halyburton Memorial
TR0795 Page 23 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
Well #2 - 7200
Murrayville Rd.
104
10/1/2019 7/7/2020 4/5/2021 10/4/2021 8/31/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 5/6/2019 6/10/2020 4/5/2021 10/4/2021 4/29/2019 5/14/2019 5/14/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021
103 105 106 107
Well #19 Source-110 Marsh Oaks Dr.Well #2 Source-543 Cathay Rd.Well #20 Source- 208 Bayfield Dr.Well #3 Source-655 Halyburton Memorial
ND ND ND ND ND ND ND --ND ND ND ND --ND ND ND ND ND ND --ND ND ND
2 1 1 1 ND ND ND ND ND ND ND ND ND 4 4 3 4 5 4 ND 4
3 2 1 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 9
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND ND ------ND ND ND ----ND ND ----------ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 3 2 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 2 2 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 1 1 1 2 1 ND 1
3 2 1 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND 2 6 ND ND ND ND ND ND ND ND ND 1 15 ND 3 1 ND 2 10 7 11
ND ND 2 6 ND ND ND ND ND ND ND ND ND 1 15 ND 3 1 ND 2 10 7 11
22 13 9 14 1 ND ND ND ND ND 1 6 ND ND 8 10 7 9 11 8 14 10
22 13 11 19 1 ND ND ND ND ND 1 6 ND 1 15 8 13 9 9 12 18 21 21
TR0795 Page 24 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
5/6/2019 6/10/2020 4/5/2021 10/4/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 11/19/2019 6/17/2020 4/5/2021 10/4/2021 3/27/2019 5/9/2019 5/9/2019 5/19/2021 10/4/2021 3/27/2019 5/9/2019 5/9/2019 5/12/2021 10/4/2021
ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4 5 4 5 6 2 ND 2 3 5
------------------------------------------------
1 ND 13 30 ND ND ND ND ND ND ND ND ND ND 26 26 25 140 390 13 ND 12 46 280
2 ND 2 3 ND ND ND ND ND ND ND ND ND ND 21 20 21 21 20 12 ND 7 12 17
ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5 5 4 10 7 4 ND 2 5 5
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--ND ND ND ----ND ND ND ND --ND ND ND ------ND ND ------ND ND
------ND ----------ND ------ND --------ND --------ND
----ND ND ------ND ND ND ----ND ND ------1 ND ------ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ------ND ND ND ----ND ND ------7 ND ------4 ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
------ND ----------ND ------ND --------4 --------3
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3 5 3 ND ND 2 ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5 ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ----------ND ------ND --------ND --------ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
ND ND 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
1 ND 1 1 ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND 6 2 ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 ND ND ND ND ND ND ND ND ND ND ND 1 1 1 1 ND ND ND 1 1
108 109 110 111 112
Well #4 Source - 2119 White Rd Well #4 Source-6608 Chorley Rd.Well #5 Source-1202 Shenandoah St.Well 28-M Pee Dee Source Well 29-N Pee Dee Source
TR0795 Page 25 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
5/6/2019 6/10/2020 4/5/2021 10/4/2021 4/29/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 11/19/2019 6/17/2020 4/5/2021 10/4/2021 3/27/2019 5/9/2019 5/9/2019 5/19/2021 10/4/2021 3/27/2019 5/9/2019 5/9/2019 5/12/2021 10/4/2021
108 109 110 111 112
Well #4 Source - 2119 White Rd Well #4 Source-6608 Chorley Rd.Well #5 Source-1202 Shenandoah St.Well 28-M Pee Dee Source Well 29-N Pee Dee Source
ND --ND ND ND ND --ND ND ND ND --ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 2 2 ND ND ND ND ND ND ND 1 1 1 1 1 1 1 1 1 ND 1 1 1
1 ND 1 1 ND ND ND ND ND ND 1 ND ND ND 1 2 1 2 1 ND ND 1 1 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ------ND ND ND ----ND ND ------ND ND ------ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 ND ND ND ND ND ND 1 2 1 1 1 1 1 1 1 1 ND 1 1 1
1 ND 2 1 ND ND ND ND ND ND 1 ND ND ND 2 2 2 2 2 1 ND 1 1 1
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 ND ND ND ND ND ND ND ND ND ND 2 2 2 2 2 1 ND 1 1 ND
ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 ND 15 33 ND ND ND ND ND ND ND ND ND ND 59 66 56 180 430 33 ND 23 68 310
3 ND 15 33 ND ND ND ND ND ND ND ND ND ND 59 66 57 180 430 33 ND 23 71 310
8 ND 9 8 ND ND ND ND ND 4 3 2 2 6 9 9 10 7 3 ND 10 7 5
10 ND 24 40 ND ND ND ND ND 4 3 2 2 65 75 66 190 430 36 ND 33 78 320
TR0795 Page 26 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Well A - Pee Dee
Source
114
5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/11/2021 5/9/2019 5/9/2019 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/9/2019 5/9/2019 3/23/2021 5/12/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021
ND ND 1 1 ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------------------------------------------
6 ND 38 57 8 ND 11 16 ND ND ND 4 ND ND 3 ND 4 ND ND 2 11
4 ND 6 4 1 ND 7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 2 ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
------ND ------ND ------ND --------ND ------ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
------ND ------ND ------ND --------ND ------ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ------ND ------ND --------ND ------ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND 2 ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
ND ND 1 ND 1 ND ND 1 ND ND 1 1 ND ND ND ND ND ND ND ND ND
ND ND 2 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
115 116 117 118113
Well A-Pee Dee Source Well B-Castle Hayne Source Well B-Pee Dee Source Well C-Castle Hayne Source Well 30-O Pee Dee Source
TR0795 Page 27 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
Well A - Pee Dee
Source
114
5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/11/2021 5/9/2019 5/9/2019 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/9/2019 5/9/2019 3/23/2021 5/12/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021
115 116 117 118113
Well A-Pee Dee Source Well B-Castle Hayne Source Well B-Pee Dee Source Well C-Castle Hayne Source Well 30-O Pee Dee Source
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
2 ND 2 2 2 1 ND 1 ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 2 1 ND 1 ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ND ----ND ----ND ND ----ND ND ND ----ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 2 1 ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND
2 ND 1 1 1 ND 1 1 ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 1 2 1 1 ND ND ND 1 ND ND ND ND ND ND ND 1 1 ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11 ND 46 62 10 ND 22 16 ND ND ND 4 ND ND 3 ND 4 ND ND 2 11
11 ND 46 62 10 ND 22 16 ND ND ND 4 ND ND 3 ND 4 ND ND 2 11
7 ND 10 7 11 4 2 3 ND ND 2 2 ND 2 ND ND ND ND 1 1
17 ND 56 69 21 4 23 19 ND ND 2 6 ND 2 3 ND 4 ND 1 3 11
TR0795 Page 28 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
5/9/2019 5/9/2019 5/11/2021 10/4/2021 7/16/2019 5/11/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 10/4/2021
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------------
ND ND ND 4 ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
------ND ----------ND ------ND ------ND ------ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
------ND ----------ND ------ND ------ND ------ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ----------ND ------ND ------ND ------ND ----ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
2 1 1 2 ND ND 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND 1 ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
121 122 123 124 125119120
Well F-Pee Dee Source Well G-Castle Hayne Source Well G-Pee Dee Source Well H-Castle Hayne Source Well H-Pee Dee SourceWell C-Pee Dee Source Well F-Castle Hayne
TR0795 Page 29 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
5/9/2019 5/9/2019 5/11/2021 10/4/2021 7/16/2019 5/11/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 10/4/2021
121 122 123 124 125119120
Well F-Pee Dee Source Well G-Castle Hayne Source Well G-Pee Dee Source Well H-Castle Hayne Source Well H-Pee Dee SourceWell C-Pee Dee Source Well F-Castle Hayne
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 1 1 1 ND ND 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND --ND ----ND ND ----ND ND ----ND ND ----ND ND ----ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3 2 2 2 ND ND 1 2 2 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
2 2 1 1 ND ND 1 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1 1 1 ND ND ND 1 ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 4 ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 4 ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10 9 9 7 ND ND 5 5 4 2 ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
10 9 9 11 ND ND 5 5 4 3 ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
TR0795 Page 30 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Well L -
Castle
Hayne
Source
132
5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 7/1/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 7/1/2021 10/4/2021 5/11/2021
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----------------------------------------------------
ND ND ND 1 ND 2 ND 5 ND 2 ND ND ND ND ND ND ND ND 3 4 ND 1 ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
------ND ------ND ------------ND ------ND ND ------ND ND --
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ----ND ND ND ND
------ND ------ND ------------ND ------ND ND ------ND ND --
----ND ND ----ND ND ----ND ----ND ND ----ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
------ND ------ND ------------ND ------ND ------ND ND --
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 20 ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND
ND ND ND ND 2 2 2 2 ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND ND ND
ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 1 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
127 128 129 130 131126
Well I-Pee Dee Source Well J-Castle Hayne Source Well J-Pee Dee Source Well K-Castle Hayne Source Well K-Pee Dee SourceWell I-Castle Hayne Source
TR0795 Page 31 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
Well L -
Castle
Hayne
Source
132
5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 7/1/2021 10/4/2021 5/9/2019 5/9/2019 5/11/2021 7/1/2021 10/4/2021 5/11/2021
127 128 129 130 131126
Well I-Pee Dee Source Well J-Castle Hayne Source Well J-Pee Dee Source Well K-Castle Hayne Source Well K-Pee Dee SourceWell I-Castle Hayne Source
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 1 1 ND 1 ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND
ND ND ND ND 2 1 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ND ----ND ND ----ND ----ND ND ----ND ND ND ----ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 2 3 3 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 3 2 2 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND 2 1 1 ND ND ND ND ND ND ND ND ND 1 1 ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND 1 ND 2 ND 6 ND 2 ND ND ND ND ND ND ND ND 3 4 ND 1 ND ND ND ND
ND ND ND 1 ND 2 ND 6 ND 2 ND ND ND ND ND ND ND ND 3 4 ND 1 ND ND ND ND
ND ND ND ND 11 12 9 8 ND ND ND ND ND ND ND ND 2 22 2 1 ND ND ND ND
ND ND ND 1 11 13 9 13 ND 2 ND ND ND ND ND ND 2 22 5 5 ND 1 ND ND
TR0795 Page 32 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Table 3+ PFAS (ng/L)
2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid or
Hexafluoropropyleneoxide dimer acid (HFPO-DA or PFPrOPrA or GenX)
Perfluoro-2-methyl-3-oxahexanoic acid (GenX)
Perfluoro-2-methoxyacetic acid (PFMOAA)
Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA)
Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA)
Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA)
Sodium 2,2,4,4,6,6,8,8,10,10,12,12,12-tridecafluoro- 3,5,7,9,11-
pentaoxadodecanoate or Perfluoro(3,5,7,9,11-pentaoxadodecanoic) acid
(PFO5DA or TAF) -
PMPA
Sodium 2,3,3,3-tetrafluoro-2-(perfluoroethoxy)propanoic acid or
Perfluoroethoxypropyl carboxylic acid (PEPA)
Nafion Byproduct 1 (PS Acid)
Nafion Byproduct 2 (Hydro-PS Acid)
Byproduct 4 (BP4 of R-PSDA)
Byproduct 5 (BP5 or Hydrolyzed PSDA))
Byproduct 6 (BP6 or R-PSDCA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-tetrafluoroethoxy)ethane sulfonic acid (NVHOS)
Perfluoroethoxypropionic acid (EVE Acid)
Hydro-EVE
R-EVE
Perfluoro(2-ethoxyethane) sulfonic acid (PFEESA or PES)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B)
4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)
Perfluoro-3-methoxypropanoic acid (PFMOPrA or PFMPA)
Perfluoro-4-methoxybutanic acid (PFMOBA or PFMBA)
Other PFAS (ng/L)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonate (PF3OUdS or 11-Cl-
PF3OUdS)
2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol or N-Ethylperfluorooctane
sulfonamido ethanol (N-EtFOSE)
2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonate or 9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (PF3ONS or 9-Cl-PF3ONS)
FBSA
Fluorotelomer sulfonate 10:2 or 1H, 1H, 2H, 2H-perfluorododecane sulfonic
acid (10:2 FTS)
Fluorotelomer sulfonate 4:2 or 1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid
(4:2 FTS)
Fluorotelomer sulfonate 6:2 or 1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid
(6:2 FTS)
Fluorotelomer sulfonate 8:2 or 1H, 1H, 2H, 2H-Perfluorodecane sulfonic acid
(8:2 FTS)
N-ethylperfluoro-1-octanesulfonamide or N-Ethylperfluorooctane sulfonamide
(EtFOSAm or N-EtFOSA)
N-ethylperfluoro-1-octanesulfonamidoacetic acid or N-Ethylperfluorooctane
sulfonamido acetic acid (NEtFOSAA)
N-methylperfluoro-1-octanesulfonamide or N-Methylperfluorooctane
sulfonamide (NMeFOSA)
N-methylperfluoro-1-octanesulfonamidoacetic acid or N-Methylperfluorooctane
sulfonamido acetic acid (NMeFOSAA)
Perfluoro-1-dodecanesulfonate or Perfluorododecane sulfonic acid (PFDoS)
Perfluorobutanesulfonate or Perfluorobutane sulfonic acid (PFBS)
Perfluorobutyric acid or Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonate or Perfluorodecane sulfonic acid (PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonate orPerfluoroheptane sulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
5/9/2019 5/9/2019 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/6/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 1/28/2020 10/6/2020 1/28/2020 10/6/2020
ND ND ND ND ND ND ND 7 6 4 3 ND ND ND ND ND ND ND ND ND ND ND ND ND
--------------------------------------------------
ND ND ND ND ND ND ND 51 56 350 300 2 ND 11 29 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 40 46 31 14 ND ND 2 ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 10 9 9 7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ----ND ND ----ND ND ----ND ND ----ND ND ND ND --ND --ND
----ND ------ND ------2 ------ND ----------ND --------
----ND ----ND ND ----2 ND ----ND ND ------ND ND ND --ND --ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ----ND ND ----6 ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ------ND ------4 ------ND ----------ND --------
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 5 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 19
ND ND ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ------ND ------ND ------ND ----------ND --------
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
ND ND ND ND ND ND ND 2 1 1 1 1 1 1 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 4 3 3 1 ND ND 1 ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 2 2 1 1 ND ND ND ND ND ND ND ND ND ND ND ND ND
134 135 136 137 138 139133
Well L-Pee Dee Source Well P-Pee Dee Source Well Q-Pee Dee Source Well#5 Source-225 McQuillan Dr.Well#6 Source-124
Southwold Dr.(46)
Well#7 Source-5401
Myrtle Grove Rd (47).Well L-Castle Hayne Source
TR0795 Page 33 of 34 February 2022
APPENDIX C
PFAS Results in Groundwater from NCDEQ
Sampling of Non-Private Wells in New Hanover County (2019-2021)
Geosyntec Consultants of NC, P.C.
Sample Location
Location ID
Sample Date
Perfluorohexadecanoic acid (PFHxDA)
Perfluorohexanesulfonate or Perfluorohexane sulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonate or Perfluorononane sulfonic acid (PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid (PFODA)
Perfluorooctane sulfonamide (PFOSA or PFOSAm)
Perfluorooctanesulfonate or Perfluorooctane sulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonate or Perfluoropentane sulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTeDA or PFTDA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUdA or PFUnDA)
Sodium dodecafluoro-3H-4,8-dioxanonanoate or 4,8-Dioxa-3H-
perfluorononanoic acid (ADONA or DONA)
Total Table 3+ Compounds (17 Compounds) (ng/L)
Total Table 3+ Compounds (20 Compounds) (ng/L)
Total Other PFAS (ng/L)
Total of all Compounds (ng/L)
5/9/2019 5/9/2019 10/4/2021 5/9/2019 5/9/2019 5/11/2021 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/9/2019 5/9/2019 5/12/2021 10/4/2021 5/6/2019 10/1/2019 6/11/2020 10/6/2020 4/6/2021 10/7/2021 1/28/2020 10/6/2020 1/28/2020 10/6/2020
134 135 136 137 138 139133
Well L-Pee Dee Source Well P-Pee Dee Source Well Q-Pee Dee Source Well#5 Source-225 McQuillan Dr.Well#6 Source-124
Southwold Dr.(46)
Well#7 Source-5401
Myrtle Grove Rd (47).Well L-Castle Hayne Source
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND --ND ND ND ND ND ND ND
ND ND ND ND ND ND 2 2 2 1 2 2 2 2 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 3 3 2 1 1 1 1 1 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
----ND ----ND ND ----ND ND ----ND ND ------ND ND ND --ND --ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 5 5 3 2 1 1 1 1 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND 3 3 2 2 1 ND ND 1 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 4 3 3 2 1 1 1 1 ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
ND ND ND ND ND ND ND 110 120 400 330 2 ND 13 29 ND ND ND ND ND ND ND ND ND 19
ND ND ND ND ND ND ND 110 120 410 330 2 ND 12 30 ND ND ND ND ND ND ND ND ND 19
ND ND 1 ND ND ND ND 24 22 18 11 6 5 7 5 ND ND ND ND ND ND ND ND ND ND
ND ND 1 ND ND ND ND 140 140 420 340 8 5 20 35 ND ND ND ND ND ND ND ND ND 19
Notes:
1. Data were provided by NCDEQ and includes NCDEQ or CFPUA monitoring wells, public supply and emergency wells from the Sweeney or Richardson water treatment facilities.
2. Concentrations are presented in ng/L.
3. Total Table 3+ (17 compounds) does not include R-PSDA, Hydrolyzed PSDA, and R-EVE.
CFPUA - Cape Fear Public Utility Authority
NCDEQ - North Carolina Department of Environmental Quality
ng/L : nanograms per liter
ND - Compound not detected
PFAS - per and polyfluoroalkyl substances
-- - Not applicable
TR0795 Page 34 of 34 February 2022

TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
Appendix D
Additional Potential Analytes for Analysis

APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
2,3,7,8-TCDD 1613B
Antimony 200.7 Rev. 4.4
Arsenic 200.7 Rev. 4.4
Barium 200.7 Rev. 4.4
Beryllium 200.7 Rev. 4.4
Cadmium 200.7 Rev. 4.4
Calcium 200.7 Rev. 4.4
Chromium 200.7 Rev. 4.4
Cobalt 200.7 Rev. 4.4
Copper 200.7 Rev. 4.4
Iron 200.7 Rev. 4.4
Lead 200.7 Rev. 4.4
Magnesium 200.7 Rev. 4.4
Manganese 200.7 Rev. 4.4
Molybdenum 200.7 Rev. 4.4
Nickel 200.7 Rev. 4.4
Potassium 200.7 Rev. 4.4
Selenium 200.7 Rev. 4.4
Silver 200.7 Rev. 4.4
Sodium 200.7 Rev. 4.4
Strontium 200.7 Rev. 4.4
Vanadium 200.7 Rev. 4.4
Zinc 200.7 Rev. 4.4
Thallium 200.8
Hexavalent Chromium 218.6
Mercury 245.1
Bromide 300.0
Chlorate 300.0
Chloride 300.0
Chlorite 300.0
Fluoride 300.0
Nitrate 300.0/353.2
Nitrite 300.0/353.2
Sulfate 300.0
Bromate 300.1
Perchlorate 331.0
Cyanide 335.4
Phosphate 365 / 14500-P
Chloramine 4500 CL F
Chlorine 4500 CL F
Chlorine Dioxide 4500 CL F
1,2-Dibromo-3-Chloropropane 504.1
TR0795 Page 1 of 6 February 2022
APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
1,2-Dibromoethane (EDB)504.1
1,2,3-Trichloropropane 505/552.2
Chlordane 505
PCB 1016 505
PCB 1221 505
PCB 1232 505
PCB 1242 505
PCB 1248 505
PCB 1254 505
PCB 1260 505
Total PCB (congeners)505
Toxaphene 505
2,4-Dichlorophenoxyacetic Acid 515.3
Dalapon 85 515.3
Dicamba 515.3
Dinoseb 515.3
Pentachlorophenol 515.3/L200
Picloram 515.3
Silvex 515.3
1,4-Dioxane 522
Bromodichloromethane 524.2
Bromoform 524.2
Chlorodibromomethane 524.2
Chloroform 524.2
Alachlor 525.2 Rev 2.0
Aldrin 525.2 Rev 2.0
Atrazine 525.2 Rev 2.0
Benzo[A]Pyrene 525.2 Rev 2.0
Bis(2-Ethylhexyl)Adipate 525.2 Rev 2.0
Bis(2-Ethylhexyl)Phthalate 525.2 Rev 2.0
Butachlor 525.2 Rev 2.0
Dieldrin 525.2 Rev 2.0
Endrin 525.2 Rev 2.0
Heptachlor 525.2 Rev 2.0
Heptachlor Epoxide 525.2 Rev 2.0
Hexachlorobenzene 525.2 Rev 2.0
Hexachlorocyclopentadiene 525.2 Rev 2.0
Lindane 525.2 Rev 2.0
Methoxychlor 525.2 Rev 2.0
Metolachlor 525.2 Rev 2.0
Metribuzin 525.2 Rev 2.0
Propachlor 525.2 Rev 2.0
TR0795 Page 2 of 6 February 2022
APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
Simazine 525.2 Rev 2.0
Alpha-BHC 525.3
Chlorpyrifos 525.3
Dimethipin 525.3
Merphos Oxide 525.3
Mocap 525.3
Oxyfluorfen 525.3
Permethrin 525.3
Tebuconazole 525.3
Buytlated Hydroxyanisole 530
O-Toluidine 530
Quinoline 530
3-Hydroxycarbofuran 531.2
Aldicarb 531.2
Aldicarb Sulfone 531.2
Aldicarb Sulfoxide 531.2
Carbaryl 531.2
Carbofuran 531.2
Methomyl 531.2
Oxamyl 531.2
Total Organic Carbon 5310 C-2011
Glyphosate 547
Endothall 548.1
Diquat Dibromide 549.2
Dibromoacetic Acid 552.2
Dichloroacetic Acid 552.2/552.3
Monobromoacetic Acid 552.2/552.3
Monochloroacetic Acid 552.2/552.3
Total Haloacetic Acids(5)552.2/552.3
Trichloroacetic Acid 552.2/552.3
Bromochloroacetic Acid 552.3
Bromodichloroacetic acid 552.3
Chlorodibromoacetic acid 552.3
Tribromoacetic acid 552.3
Total Coliforms by Presence/Absence 9222B
Pentachlorophenol L200
2,4,6-Trichlorophenol L200
4-N-Nonylphenol L200
4-n-Octylphenol L200
4-tert-Octylphenol L200
Bisphenol A L200
Phenylphenol L200
TR0795 Page 3 of 6 February 2022
APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
Tetrabromobisphenol A L200
17alpha-Estradiol L211
17alpha-Ethynyl estradiol L211
cis-Testosterone L211
Diethylstilbestrol L211
Estradiol 17B L211
Estriol L211
Estrone L211
Progesterone L211
trans-Testosterone L211
Acetaminophen L220
Antipyrine L220
Atenolol L220
Azithromycin L220
Caffeine L220
Carbadox L220
Carbamazepine L220
Cotinine L220
Dexamethasone L220
Diazepam L220
Diltiazem L220
Erythromycin L220
Fluoxetine (Prozac)L220
Iopromide L220
Lincomycin L220
Meprobamate L220
Monensin L220
N,N-Diethyl-3-Methylbenzamide L220
Narasin L220
Nicotine L220
Oleandomycin L220
Paraxanthine L220
Primidone L220
Roxithromycin L220
Salinomycin L220
Sulfadiazine L220
Sulfadimethoxine L220
Sulfamethazine L220
Sulfamethizole L220
Sulfamethoxazole L220
Sulfasalazine L220
Sulfathiazole L220
TR0795 Page 4 of 6 February 2022
APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
Theobromine L220
Trimethoprim L220
Tris(1-Chloro-2-Propyl)Phosphate L220
Tris(2-Chloroethyl) Phosphate L220
Tylosin L220
Virginiamycin M1 L220
Acesulfame-K L221
Bezafibrate L221
Chloramphenicol L221
Chlorotetracycline L221
Clofibric Acid L221
Diclofenac L221
Gemfibrozil L221
Ibuprofen L221
Levothyroxine (Synthroid)L221
Naproxen L221
Penicillin G L221
Penicillin V L221
Phenytoin L221
Prednisone L221
Salicylic Acid L221
Sucralose L221
Theophylline L221
Triclocarban L221
Triclosan L221
Hfpo Dimer Acid EPA 537 Rev. 1.1 modified
PFMOAA Cl. Spec. Table 3 Compound SOP
PFO2HxA Cl. Spec. Table 3 Compound SOP
PFO3OA Cl. Spec. Table 3 Compound SOP
PFO4DA Cl. Spec. Table 3 Compound SOP
PFO5DA Cl. Spec. Table 3 Compound SOP
PMPA Cl. Spec. Table 3 Compound SOP
PEPA Cl. Spec. Table 3 Compound SOP
PFESA-BP1 Cl. Spec. Table 3 Compound SOP
PFESA-BP2 Cl. Spec. Table 3 Compound SOP
Byproduct 4 Cl. Spec. Table 3 Compound SOP
Byproduct 5 Cl. Spec. Table 3 Compound SOP
Byproduct 6 Cl. Spec. Table 3 Compound SOP
NVHOS Cl. Spec. Table 3 Compound SOP
EVE Acid Cl. Spec. Table 3 Compound SOP
Hydro-EVE Acid Cl. Spec. Table 3 Compound SOP
R-EVE Cl. Spec. Table 3 Compound SOP
TR0795 Page 5 of 6 February 2022
APPENDIX D
Additional Potential Analytes for Analysis
Geosyntec Consultants of NC, P.C.
Other Analytes Lab Method
PES Cl. Spec. Table 3 Compound SOP
PFECA B Cl. Spec. Table 3 Compound SOP
PFECA-G Cl. Spec. Table 3 Compound SOP
10:2 Fluorotelomer sulfonate EPA 537 Rev. 1.1 modified
11Cl-PF3OUdS EPA 537 Rev. 1.1 modified
1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)EPA 537 Rev. 1.1 modified
1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)EPA 537 Rev. 1.1 modified
2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol EPA 537 Rev. 1.1 modified
2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol EPA 537 Rev. 1.1 modified
6:2 Fluorotelomer sulfonate EPA 537 Rev. 1.1 modified
9Cl-PF3ONS EPA 537 Rev. 1.1 modified
DONA EPA 537 Rev. 1.1 modified
N-ethyl perfluorooctane sulfonamidoacetic acid EPA 537 Rev. 1.1 modified
N-ethylperfluoro-1-octanesulfonamide EPA 537 Rev. 1.1 modified
N-methyl perfluoro-1-octanesulfonamide EPA 537 Rev. 1.1 modified
N-methyl perfluorooctane sulfonamidoacetic acid EPA 537 Rev. 1.1 modified
Perfluorobutane Sulfonic Acid EPA 537 Rev. 1.1 modified
Perfluorobutanoic Acid EPA 537 Rev. 1.1 modified
Perfluorodecane Sulfonic Acid EPA 537 Rev. 1.1 modified
Perfluorodecanoic Acid EPA 537 Rev. 1.1 modified
Perfluorododecane sulfonic acid (PFDoS)EPA 537 Rev. 1.1 modified
Perfluorododecanoic Acid EPA 537 Rev. 1.1 modified
Perfluoroheptane sulfonic acid (PFHpS)EPA 537 Rev. 1.1 modified
Perfluoroheptanoic Acid EPA 537 Rev. 1.1 modified
Perfluorohexadecanoic acid (PFHxDA)EPA 537 Rev. 1.1 modified
Perfluorohexane Sulfonic Acid EPA 537 Rev. 1.1 modified
Perfluorohexanoic Acid EPA 537 Rev. 1.1 modified
Perfluorononanesulfonic acid EPA 537 Rev. 1.1 modified
Perfluorononanoic Acid EPA 537 Rev. 1.1 modified
Perfluorooctadecanoic acid EPA 537 Rev. 1.1 modified
Perfluorooctane Sulfonamide EPA 537 Rev. 1.1 modified
Perfluoropentane sulfonic acid (PFPeS)EPA 537 Rev. 1.1 modified
Perfluoropentanoic Acid EPA 537 Rev. 1.1 modified
Perfluorotetradecanoic Acid EPA 537 Rev. 1.1 modified
Perfluorotridecanoic Acid EPA 537 Rev. 1.1 modified
Perfluoroundecanoic Acid EPA 537 Rev. 1.1 modified
PFOA EPA 537 Rev. 1.1 modified
PFOS EPA 537 Rev. 1.1 modified
TR0795 Page 6 of 6 February 2022
TR0795A – Framework to Assess Table 3+ PFAS in New Hanover, Brunswick, Columbus, and Pender Counties
Appendix E
Information Gathered from Public Sources
APPENDIX E1
List of Water Treatment Plants Potentially Utilizing Cape Fear River Water
Geosyntec Consultants of NC, P.C.
Distribution System Date of Cape Fear River Water
Usage Start County
NW Brunswick Water Treatment Plant Data requested Brunswick
Sweeney Water Treatment Plant Data requested New Hanover
Richardson Treatment Plant Data requested New Hanover
Pender County 421 Water Treatment Plant Data requested Pender
Notes:
Information about water treatment plants was obtained through internet searches.
TR0795 February 2022
APPENDIX E2
List of Water Distribution Systems Potentially Utilizing
Cape Fear River Water
Geosyntec Consultants of NC, P.C.
County Distribution System Start Date of Cape Fear River
Water Use
Brunswick County Data Requested
Shallotte Data Requested
Ocean Isle Beach Data Requested
South Port Data Requested
Oak Island Data Requested
Holden Beach Data Requested
Leland Data Requested
Bald Head Island Data Requested
H2GO Data Requested
Northwest Data Requested
Navassa Data Requested
Cape Fear Public Utility Authority Data Requested
Town of Wrightsville Beach
(from LCFWASA)Data Requested
Town of Carolina Beach
(from LCFWASA)Data Requested
Aqua of NC, Inc.Data Requested
Rocky Point/Topsail Water District Data Requested
Scotts Hill Water & Sewer District ~1996 to present1
Maple Hill Water District ~1996 to present
Central Pender Water District ~1996 to present
Columbia-Union Water District ~1996 to present
Moore’s Creek Water District ~1996 to present
Riegelwood Sanitary District 2009 to present2
Columbus County Water District I Data Requested
Columbus County Water District II Data Requested
Columbus County Water District III Data Requested
New Hanover,
Brunswick, Columbus,
and Pender
Lower Cape Fear Water and Sewer Authority
Notes:
1. https://www.pendercountync.gov/utl/
2. https://www.manta.com/c/mtc7tt0/riegel-wood-sanitary-district
Information about distribution systems was obtained through the NC One Map online database and internet searches.
Specific websites with sources of information are listed below.
Brunswick
New Hanover
Pender
Columbus
TR0795 February 2022
Data Requested
APPENDIX E3
List of WWTPs Potentially Receiving Sanitary Water Originally Sourced from Cape Fear River
Geosyntec Consultants of NC, P.C.
Distribution System
Collects Water
Originating from Cape
Fear River
County
Sweeney Water Treatment Plant Data requested New Hanover
Richardson Data requested New Hanover
Tabor City Wastewater Treatment Plant Data requested Columbus
James A. Loughlin Wastewater Treatment
Plant (NSWWTP; CFPUA)Assumed Yes New Hanover
M’Kean Maffitt Wastewater Treatment Plant
(SSWWTP; CFPUA)Assumed Yes New Hanover
Pender County Utilities Data requested Pender
Brunswick Regional Water & Sewer H2GO Assumed Yes Brunswick
Brunswick County Northwest Water Plant Assumed Yes Brunswick
West Brunswick Regional Water Reclamation
Facility Assumed Yes Brunswick
Notes:
Information about wastewater treatment plants was compiled from publicly available databases.
WWTPs: wastewater treatment plants
TR0795 February 2022
APPENDIX E4
List of Known Distribution System and Sanitary System Leak Locations for
Systems Potentially Utilizing Cape Fear River Water
Geosyntec Consultants of NC, P.C.
Distribution System Date of Leak Duration Volume County
No records yet provided --------
Notes:
No records of known leaks in distribution system or sanitary systems have been provided by the counties or
utility providers since requests were issued beginning December 14, 2021.
TR0795 February 2022