WA-92968_96721_CA_RPTS_20220923_LSA

Engineers who understand your business
PHASE I LIMITED SITE
ASSESSMENT REPORT

Outer Banks Marina
712 Harbor Road
Wanchese, North Carolina 27981

September 13, 2022
Partner Project Number: 21-311567.13

Prepared for:
NCDEQ – UST Section
943 Washington Square Mall
Washington, North Carolina 27889

800-419-4923 www.PARTNEResi.com

September 13, 2022

Mr. Jared Edwards
NCDEQ – UST Section
943 Washington Square Mall
Washington, North Carolina 27889

Subject: Phase I Limited Site Assessment Report
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number: 21-311567.13
NCDEQ Incident Number: 96721
Dear Mr. Edwards:
Partner Engineering North Carolina, PLLC (Partner) is pleased to provide the results of the Limited Site
Assessment performed at the above-referenced property. The following report describes the field activities,
methods, and findings of the assessment. Based on the results of the assessment, the release meets the
requirements of a Low Risk ranking.
This assessment was performed consistent with acceptable industry standards. The independent
conclusions represent Partner’s best professional judgment based upon existing conditions and the
information and data available to us during the course of this assignment.
If you have any questions concerning this report, or if we can assist you in any other matter, please contact
Alex Smith at [phone].
Sincerely,
Partner Engineering North Carolina, PLLC

Damian Hriciga Alex Smith
Senior Project Manager Senior Project Manager

Charlie Tallinger Kristine M. Macwilliams, P.E.
National Client Manager Managing Director – Subsurface Investigations

TABLE OF CONTENTS
1.0 INTRODUCTION ............................................................................................................................... 1
1.1 Purpose ................................................................................................................................................................................ 1
1.2 Limitations .......................................................................................................................................................................... 1
1.3 User Reliance ..................................................................................................................................................................... 1
2.0 SITE INFORMATION ........................................................................................................................ 2
2.1 Site Identification ............................................................................................................................................................. 2
2.2 Information about Contacts Associated with the Leaking UST System ..................................................... 2
2.3 Information about the Release ................................................................................................................................... 3
2.4 Certification ........................................................................................................................................................................ 3
3.0 SITE BACKGROUND ....................................................................................................................... 4
3.1 Site Description ................................................................................................................................................................. 4
3.2 Site History ......................................................................................................................................................................... 4
3.3 Geology and Hydrogeology ........................................................................................................................................ 5
4.0 FIELD ACTIVITIES ........................................................................................................................... 7
4.1 Preparatory Activities...................................................................................................................................................... 7
4.1.1 Utility Clearance ........................................................................................................................................................... 7
4.1.2 Health and Safety Plan .............................................................................................................................................. 7
4.2 Drilling Equipment ........................................................................................................................................................... 7
4.3 Sample Locations ............................................................................................................................................................. 7
4.4 Soil Sampling ..................................................................................................................................................................... 7
4.5 Post-Sampling Activities................................................................................................................................................ 8
4.6 Receptor Survey ................................................................................................................................................................ 8
5.0 DATA ANALYSIS ............................................................................................................................. 9
5.1 Laboratory Analysis ......................................................................................................................................................... 9
5.2 Regulatory Agency Comparison Criteria ................................................................................................................ 9
5.3 Soil Sample Data Analysis ............................................................................................................................................. 9
5.4 Discussion ........................................................................................................................................................................... 9
6.0 RISK CHARACTERIZATION ......................................................................................................... 10
6.1 Part I – Groundwater/Surface Water/Vapor Impacts ...................................................................................... 10
6.2 Part II - Land Use ........................................................................................................................................................... 11
6.2.1 Property Containing Source Area of Release ................................................................................................ 11
6.2.2 Property Surrounding Source Area of Release ............................................................................................ 11
7.0 RECEPTOR INFORMATION .......................................................................................................... 13
7.1 Water Supply Wells ...................................................................................................................................................... 13
7.2 Public Water Supplies.................................................................................................................................................. 13
7.3 Surface Water ................................................................................................................................................................. 13
7.4 Wellhead Protection Areas ........................................................................................................................................ 13
7.5 Subsurface Structures .................................................................................................................................................. 13
8.0 SUMMARY AND CONCLUSIONS ................................................................................................. 14

ATTACHMENTS
Tables 1. Site History – UST/AST System and Other Release Information
2. Site History - UST/AST Owner/Operator and Other Responsible
Party Information
3. Scope
4. Soil Sample Laboratory Results Summary
5. Potential Receptor Information
6. Property Owners/Occupants

Figures 1. Site Vicinity Map
2. Topographic Map
3. Sample Location Map
4. Land Use/Receptor Map

Appendices A. Phase II Tables and Figure
B. Boring Logs
C. Laboratory Analytical Report
D. Source Water Assessment Program Map
E. Burlington 2021 Annual Water Report

Limited Site Assessment Report
Project No. 21-311567.13
September 13, 2022
Page 1

1.0 INTRODUCTION
1.1 Purpose
The purpose of the Phase I Limited Site Assessment (LSA) was to evaluate the potential that a residual
secondary source of soil contamination remains in the spill area investigated during a recent Phase II
Subsurface Investigation in accordance with Title 15A NCAC 2L .0505. The Phase I LSA was conducted in
general accordance with the North Carolina Department of Environmental Quality (NCDEQ) Underground
Storage Tank (UST) Section UST Section Assessment Guidelines, Petroleum and Hazardous Substances UST
Releases, Petroleum Non-UST Releases, January 19, 2021 Version.
1.2 Limitations
This report presents a summary of work conducted by Partner. The work includes observations of site
conditions encountered and the analytical results provided by an independent third-party laboratory of
samples collected during the course of the project. The number and location of samples were selected to
provide the required information. It cannot be assumed that the limited available data are representative
of subsurface conditions in areas not sampled.
Conclusions and/or recommendations are based on the observations, laboratory analyses, and the
governing regulations. Conclusions and/or recommendations beyond those stated and reported herein
should not be inferred from this document.
Partner warrants that the environmental consulting services contained herein were accomplished in
accordance with generally accepted practices in the environmental engineering, geology, and hydrogeology
fields that existed at the time and location of work. No other warranties are implied or expressed.
1.3 User Reliance
Partner was engaged by SHM Outer Banks, LLC (the Addressee), or their authorized representative, to
perform this investigation. The engagement agreement specifically states the scope and purpose of the
investigation, as well as the contractual obligations and limitations of both parties. This report and the
information therein, are for the exclusive use of the Addressee. This report has no other purpose and may
not be relied upon, or used, by any other person or entity without the written consent of Partner. Third
parties that obtain this report, or the information therein, shall have no rights of recourse or recovery against
Partner, its officers, employees, vendors, successors or assigns. Any such unauthorized user shall be
responsible to protect, indemnify and hold Partner, the Addressee and their respective officers, employees,
vendors, successors and assigns harmless from any and all claims, damages, losses, liabilities, expenses
(including reasonable attorneys’ fees) and costs attributable to such use. Unauthorized use of this report
shall constitute acceptance of, and commitment to, these responsibilities, which shall be irrevocable and
shall apply regardless of the cause of action or legal theory pled or asserted.
This report has been completed under specific Terms and Conditions relating to scope, relying parties,
limitations of liability, indemnification, dispute resolution, and other factors relevant to any reliance on this
report. Any parties relying on this report do so having accepted Partner’s standard Terms and Conditions,
a copy of which can be found at http://www.partneresi.com/terms-and-conditions.php.

Limited Site Assessment Report
Project No. 21-311567.13
September 13, 2022
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2.0 SITE INFORMATION
Site history information including registered USTs and owners is summarized on Tables 1 and 2, respectively.
2.1 Site Identification
Date of Report: September 12, 2022 Site Risk: Low
Facility I.D.: 00-0-0000028302 UST Incident Number: 96721
Site Name: Outer Banks Marina
Street Address: 712 Harbor Road
City/Town: Wanchese Zip Code: 27981 County: Dare
Description of Geographical Data Point (e.g., diesel fill port): Aboveground Storage Tanks
Location Method (GPS, topographical map, other): Google Earth
Latitude (decimal degrees): 35.844691 Longitude (decimal degrees): -75.621076
2.2 Information about Contacts Associated with the Leaking UST System
(Addresses must include street, city, state, zip code and mailing address, if different)
UST Owner: SHM Outer Banks, LLC c/o Mark Liffers Email: [e-mail]
Address: 708 Harbor Road, Wanchese, NC 27981 Tel: [phone]
UST/AST Operator: SHM Outer Banks, LLC c/o Mark Liffers Email: [e-mail]
Address: 708 Harbor Road, Wanchese, NC 27981 Tel: [phone]
Property Owner: SHM Outer Banks, LLC c/o Mark Liffers
Address: 708 Harbor Road, Wanchese, NC 27981 Tel: [phone]
Property Occupant: SHM Outer Banks, LLC c/o Mark Liffers
Address: 708 Harbor Road, Wanchese, NC 27981 Tel: [phone]
Consultant: Partner Engineering North Carolina, PLLC (contact: Alex Smith)
Email: [e-mail]
Address: 8720 Red Oak Boulevard, #528, Charlotte, North Carolina 28217
Tel: [phone]
Analytical Laboratory: Eurofins State Certification No: 314
Address: 3355 McLemore Drive, Pensacola, Florida 32514
Tel: [phone]

Limited Site Assessment Report
Project No. 21-311567.13
September 13, 2022
Page 4

3.0 SITE BACKGROUND
3.1 Site Description
Partner reviewed a Phase I Environmental Site Assessment Report (Phase I) for the subject property, dated
August 4, 2021, prepared by AEI Consultants on behalf of Safe Harbors Marinas. According to the AEI Phase
I, the subject property consists of two tracts (seven tax parcels total) of land comprising approximately 8.9
acres located on the southwest and northeast sides of Harbor Road within a commercial area of Wanchese,
Dare County, North Carolina. The subject property is currently developed with nine structures, which were
constructed between 1993 and 2006 and are occupied by Joe’s Marine Service (652 Harbor Road), Dry Stack
Boat Storage (708 Harbor Road), a marina office (712 Harbor Road), Ship's Store/Tackle Shop (750 Harbor
Road), Tikki Bar (708 Harbor Road), Army Corps of Engineers (915 Harbor Road), Croswait Custom
Composites (921 and 929 Harbor Road), and Blackwell Boatworks (931 Harbor Road). In addition to the
structures, the subject property is improved with a bathhouse, a fish cleaning building, gravel parking areas,
and landscaping.
The subject property is generally bound by the Wanchese Marine Industrial Park with portions of the
property bound by Broad Creek to the east and the harbor to the west. Refer to Figure 1 for a site vicinity
map showing site features and surrounding properties.
The focus of this investigation is on Tract 1 where the ASTs and associated release case are located.
3.2 Site History
According to the AEI Phase I, the subject property was undeveloped/unimproved land as of 1956, partially
cleared and potentially undergoing construction as of 1982, and constructed with the current buildings
between 1993 and 2006.
No recognized environmental conditions (RECs) were identified in the AEI Phase I. However, the following
information was provided by the client:
• The subject property operates one 10,000-gallon gasoline AST and one 10,000-gallon diesel AST
located on the east exterior of Tikki Bar (708 Harbor Road). The ASTs were reportedly installed in the
1990s and are located in a steel/concrete berm secondary containment structure. A release from the
diesel AST reportedly occurred 5 to 7 years ago when a reported 100 square foot sheen was observed
near the secondary containment structure. A hole was observed within the diesel AST and had been
leaking into the secondary containment. The stormwater drain within the containment system was
open and allowed diesel fuel to drain onto the ground. The amount of fuel released is unknown, but
reportedly did not impact the nearby surface water. According to the client, there is no record of any
release reported to the NCDEQ. The AST was welded and repaired and is still in operation with no
known subsequent leaks or releases.
To investigate the reported release, Partner prepared a Phase II Subsurface Investigation Report (Phase II)
for the subject property, dated April 8, 2022, on behalf of Safe Harbor Marinas. The Phase II Subsurface
Investigation scope included the advancement of five borings (B1 through B5) to collect representative soil
and groundwater samples around the secondary containment stormwater drain. Borings B1, B2, and B3
were advanced in the gravel driveway to the northeast of the AST containment area and stormwater drain

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September 13, 2022
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discharge where the diesel spill was reported to have occurred. Boring B4 was advanced in the gravel
driveway at the secondary containment stormwater drain discharge point. Boring B5 was advanced on the
northwest side of the secondary containment area, near the fuel distribution sump and pump and slightly
topographically downgradient of the reported spill area. Soil samples were collected from borings B1
through B4 at 2 feet below ground surface (bgs) and from boring B5 at 5 feet bgs. Each soil sample was
analyzed for total petroleum hydrocarbons – gasoline range organics (TPH-GRO) and total petroleum
hydrocarbons – diesel range organics (TPH-DRO) via Environmental Protection Agency (EPA) Method 8015.
Groundwater samples were collected from temporary well points installed in borings B1 through B5
screened from 5 to 10 feet bgs and each groundwater sample was analyzed for volatile organic compounds
(VOCs) via EPA Method 8260 and polycyclic aromatic hydrocarbons (PAHs) via EPA Method 8270.
TPH concentrations detected in the soil samples did not exceed NCDEQ UST Section Action Levels. However,
benzene was detected in groundwater sample B5-GW at 160 microgram per liter (µg/L), which exceeded
the 15A NCAC 02L .0202 Groundwater Standard (2L Groundwater Standards) of 1 µg/L. The benzene
concentration detected in B5-GW was notably less than 10 times the 51 µg/L 15A NCAC 02B Water Quality
Standards for Surface Waters (2B Surface Water Standards) for Class SC Saltwater based on fish
consumption. No other detected analytes exceeded applicable screening levels or standards.
A map of sample locations and soil and groundwater analytical results from the Phase II Subsurface
Investigation are included in Appendix A.
Based on the results of the Phase II, Partner concluded that a release or releases of petroleum had
occurred at the AST system but noted that detected concentrations in groundwater samples did not
exceed the NCDEQ UST Section Gross Contaminant Levels (GCLs). The Phase II Report recommended
additional investigation and regulatory reporting.
At the request of the client, Partner submitted Form UST-62 24-Hour Notification of Discharge Form for
Non-Underground Storage Tank (UST) Releases of Petroleum in NC to the NCDEQ via email on May 23,
2022. Based on a Notice of Regulatory Requirements (NORR) dated June 6, 2022, received via email from
Mr. Jared Edwards of the NCDEQ, the NCDEQ requested preparation and submittal of a Phase I LSA Report
in accordance with Title 15A North Carolina Administrative Code (NCAC) 2L .0505. The requested
assessment scope included additional soil sampling in the area of the reported spill to identify the
potential for a residual secondary source of soil contamination to be present.
3.3 Geology and Hydrogeology
Review of the United States Geological Survey (USGS) Oregon Inlet, North Carolina Quadrangle topographic
map indicates the subject property is situated approximately 5 feet above mean sea level, and the local
topography is flat. Refer to Figure 2 for a topographic map of the site vicinity.
The subject property is situated within the Lower Coastal Plain Physiographic Province, which consists of
stair-step-like planar terraces that dip gently towards the ocean. The Atlantic coast is lined with barrier
islands that support sand dune and maritime forest habitats and are backed by marshland. In the vicinity of
the subject property, the surface geology consists of Quaternary-age deposits ranging from recent to 2
million years old. More specifically, inter-fingered layers of sand and clay sediments deposited in marine,

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September 13, 2022
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fluvial, lacustrine, and/or eolian environments create a mixture of sand/clay layers that can vary significantly
between very short distances. Deposits range from 0 to 200 feet thick.
Based on borings advanced during the Phase II Subsurface Investigation and Phase I LSA, the underlying
subsurface consists predominantly of poorly graded sand (SP), brown silt (ML), and brown silty sand (SM)
from the ground surface to approximately 10 feet bgs. Groundwater was encountered during this
investigation at approximately 7 feet bgs. The direction of groundwater flow is expected to be tidally
influenced. Refer to Appendix B for boring logs from this investigation.

Limited Site Assessment Report
Project No. 21-311567.13
September 13, 2022
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4.0 FIELD ACTIVITIES
The Phase I LSA scope included a receptor survey and the advancement of four borings (B6 through B9) to
collect representative soil samples. Refer to Table 3 for a summary of the boring, sampling schedule, and
laboratory analyses for this investigation.
4.1 Preparatory Activities
Prior to the initiation of fieldwork, Partner completed the following activities.
4.1.1 Utility Clearance
Partner notified North Carolina 811 to clear public utility lines as required by law at least three business
days prior to drilling activities. North Carolina 811 issued ticket number C222230978 for the project.
4.1.2 Health and Safety Plan
Partner prepared a site-specific Health and Safety Plan, which was reviewed with on-site personnel involved
in the project prior to the commencement of drilling activities.
4.2 Drilling Equipment
On August 16, 2022, Partner subcontracted with Quantex, Inc. (Quantex; North Carolina Water Well Drilling
Contractor License Number 4329) to provide and operate drilling equipment. Quantex, under the direction
of Partner, advanced borings B6 through B9 with a track-mounted Geoprobe Model 7822DT direct-push
drill rig to collect soil samples using the Geoprobe dual-tube system. Sampling equipment was
decontaminated between sample intervals to prevent cross-contamination.
4.3 Sample Locations
Borings B6, B8, and B9 were advanced generally to the northeast of the AST secondary containment in the
reported spill area and boring B7 was advanced to the north of the AST secondary containment discharge
pipe.
Refer to Figure 3 for a map indicating sample locations.
4.4 Soil Sampling
Each of the borings were located in an unimproved gravel driveway area and advanced to 10 feet bgs.
Using the dual-tube system, the direct-push drill rig advanced 5-foot long by 2.25-inch outer diameter (OD)
outer casing into the subsurface. An inner drill string consisting of a 5-foot long by 1.375-inch OD polyvinyl
chloride (PVC) liner connected to 1.25-inch OD center rods was driven into the subsurface flush with the
lead outer casing to allow undisturbed soil to enter the open liner. The inner drill string was retrieved from
the cased boring to recover the soil-filled liner and soil sampling proceeded as described until the terminal
depth was reached.
A lengthwise section of each PVC liner was removed with a splitting tool to expose the soil. The soil column
was visually inspected for discoloration, monitored for odors, and classified in accordance with the Unified
Soil Classification System (USCS). Select intervals were field-screened with a photoionization detector (PID)

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September 13, 2022
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calibrated to isobutylene. Neither petroleum-like odors nor elevated PID readings were observed in soil
cores collected from the borings. Refer to the boring logs in Appendix B for specific boring details.
Soil depths selected for laboratory analysis were sampled directly from the liners using a disposable plastic
syringe and retained in laboratory provided preserved volatile organics analysis (VOA) vials in accordance
with United States Environmental Protection Agency (EPA) Method 5035 sampling protocol. Sample was
also collected by transferring soil into laboratory-supplied wide-mouth, unpreserved glass jars, which were
sealed with a threaded, Teflon-lined lid. The jars were filled with soil to capacity to minimize headspace
and reduce the potential for volatilization. The jars and VOA vials were labeled for identification and stored
in an iced cooler.
Based on the lack of PID readings or olfactory evidence of impacts, soil samples were collected from the
vadose zone of each boring, above the approximately 7 feet bgs water table, at 3 to 5 feet bgs.
4.5 Post-Sampling Activities
Sample tooling was removed from the subsurface and the boreholes were backfilled with hydrated
bentonite chips following sampling activities.
No significant amounts of derived wastes were generated during this investigation.
4.6 Receptor Survey
On August 17, 2022, Partner conducted visual reconnaissance of the subject property and properties within
1,500 feet of the AST system. Partner walked properties within 500 feet of the source area and conducted a
windshield survey of remaining 1,000 feet of the 1,500 feet radius. In addition to the field survey, Partner
contacted the Dare County Health Department to inquire about nearby water supply wells and the Dare
County Water Department to determine the availability of municipal water. The results of the receptor
survey are discussed in Section 6. The receptor survey area is illustrated on Figure 4.

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September 13, 2022
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5.0 DATA ANALYSIS
5.1 Laboratory Analysis
Partner collected four soil samples on August 16, 2022, which were transported in an iced cooler under
chain-of-custody protocol to Eurofins in Pensacola, Florida for analysis. Each soil sample was analyzed for
VOCs via EPA Method 8260D, semi-volatile organic compounds (SVOCs) via EPA Method 8270E, and volatile
petroleum hydrocarbons (VPH) and extractable petroleum hydrocarbons (EPH) via the Massachusetts
Department of Environmental Protection (MADEP) Methods.
Laboratory analytical results are included in Appendix C and discussed below.
5.2 Regulatory Agency Comparison Criteria
Soil analytical results were compared to the NCDEQ Soil-to-Water and Industrial/Commercial Maximum
Soil Contaminant Concentrations (MSCCs).
5.3 Soil Sample Data Analysis
The VOCs acetone and carbon disulfide were detected in one or more of the analyzed soil samples at
concentrations above the laboratory method detection limits (MDL) but below the Soil-to-Water and
Industrial/Commercial MSCCs. No other VOCs were detected above the laboratory MDLs in the analyzed
soil samples.
The SVOCs benzoic acid, caprolactam, and di-n-butyl phthalate were detected in one or more of the
analyzed soil samples at concentrations above the laboratory MDLs but below the Soil-to-Water and
Industrial/Commercial MSCCs. No other SVOCs were detected above the laboratory MDLs in the analyzed
soil samples.
The EPH carbon range C19-C36 was detected in soil samples B7 3-5 and B8 3-5 at concentrations above
the laboratory MDLs but below the Soil-to-Water and Industrial/Commercial MSCCs. No other VPH or EPH
carbon ranges were detected at concentrations above the MDLs in soil samples.
Refer to Table 4 for a summary of the soil sample laboratory analysis results.
5.4 Discussion
Detected concentrations of VOCs, SVOCs, VPH, and EPH in the soil samples did not exceed the Soil-to-
Water or Industrial/Commercial MSCCs.

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Project No. 21-311567.13
September 13, 2022
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6.0 RISK CHARACTERIZATION
Potential Receptor information is summarized on Table 5 and illustrated on Figure 4.
6.1 Part I – Groundwater/Surface Water/Vapor Impacts
High Risk
1. Has the release contaminated any water supply well including any well used for non-drinking purpose? NO
2. Is a water supply well used for drinking water located within 1,000 feet of the source area of the release?
Yes, a well that serves the Wanchese Marine Industrial Park is located approximately 920 feet
north-northwest of the source area. The well is 248 feet deep and is unlikely to be impacted by the
release (Figure 4).
3. Is a water supply well not used for drinking water (e.g., irrigation, washing cars, industrial cooling water,
filling swimming pools) located within 250 feet of the source area of the release? NO
4. Does groundwater within 500 feet of the source area of the release have the potential for future use
(there is no other source of water supply other than the groundwater)?
NO
5. Do vapors from the release pose a threat of explosion because of accumulation of the vapors in a
confined space or pose any other serious threat to public health, public safety or the environment?
NO
If yes, describe.
_____________________________________________________________________________________________________________
_____________________________________________________________________________________________________________
__________________________________________________________
6. Are there any other factors that would cause the release to pose an imminent danger to public health,
public safety, or the environment?
NO
If yes, describe.
_____________________________________________________________________________________________________________
___________________________________________________________________________

Intermediate Risk
7. Is a surface water body located within 500 feet of the source area of the release?
Yes, the adjacent harbor (Figure 4).
If YES, does the maximum groundwater contaminant concentration exceed the surface water quality
standards and criteria found in 15A NCAC 2B .0200 by a factor of 10? No
8. Is the source area of the release located within an approved or planned wellhead protection area as
defined in 42 USC 300h-7(e)?
NO
If yes, describe.
_____________________________________________________________________________________________________________
___________________________________________________________________________
9. Is the release located in the Coastal Plain physiographic region as designated on a map entitled
“Geology of North Carolina” published by the Department in 1985?
Yes

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September 13, 2022
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If YES, is the source area of the release located in an area in which there is recharge to an unconfined or
semi-confined deeper aquifer that is being used or may be used as a source of drinking water? YES
NO
If YES, describe.
_____________________________________________________________________________________________________________
___________________________________________________________________________
10. Do the levels of groundwater contamination for any contaminant exceed the gross contamination
levels established by the Department?
NO
6.2 Part II - Land Use
Contiguous property owner information and sensitive land use features are summarized on Table 6.
6.2.1 Property Containing Source Area of Release
The questions below pertain to the property containing the source area of the release.
1. Does the property contain one or more primary or secondary residences (permanent or temporary)?
NO
2. Does the property contain a school, daycare center, hospital, playground, park, recreation area,
church, nursing home, or other place of public assembly? NO
3. Does the property contain a commercial (e.g., retail, warehouse, office/business space, etc.) or
industrial (e.g., manufacturing, utilities, industrial research and development, chemical/petroleum bulk
storage, etc.) enterprise, an inactive commercial or industrial enterprise, or is the land undeveloped? Yes,
the property is a seafood industrial park and maintains bulk fuel storage for boats.
4. Do children visit the property? Yes, children visit to access boats.
5. Do pavement, buildings, or other structures cap the contaminated soil? Soil is not impacted.
6. What is the zoning status of the property? The property is zoned as the Wanchese Seafood
Industrial Park (Figure 4).
7. Is the use of the property likely to change in the next 20 years? No, the property is expected to
remain a marina.
6.2.2 Property Surrounding Source Area of Release
The questions below pertain to the area within 1,500 feet of the source area of the release (excludes property
containing source area of the release):

1. What is the distance from the source area of the release to the nearest primary or secondary residence
(permanent or temporary)? A single-family residence is located approximately 1,030 feet to the
west, across the harbor, at 4283 Mill Landing Road. _

2. What is the distance from the source area of the release to the nearest school, daycare center, hospital,
playground, park, recreation area, church, nursing home or other place of public assembly?
Places of public assembly are not located within 1,500 feet of the source area.

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Project No. 21-311567.13
September 13, 2022
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3. What is the zoning status of properties in the surrounding area?
Property within 1,500 feet of the source area is zoned for commercial purposes excepting some
residential properties across the harbor in Historic Mill Landing (Figure 4).

4. Briefly characterize the use and activities of the land in the surrounding area.
Immediately surrounding properties are used for commercial marine purposes, with residential
properties beyond the harbor (Figure 4).

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Project No. 21-311567.13
September 13, 2022
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7.0 RECEPTOR INFORMATION
Partner surveyed potential receptors within 1,500-feet of the source area through visual field reconnaissance
as described in Section 4.8 and through review of public information.
7.1 Water Supply Wells
According to the SWAPInfo 2.0 ArcGIS Viewer maintained by the NCDEQ Source Water Protection Program
(SWAP), one water supply well belonging to the Wanchese Marine Industrial Park is located approximately
920 feet north-northwest of the source area and unlikely to be impacted by the release (Figure 4 and
Appendix D). The well is 248 feet deep. Additionally, one potential residential supply well was observed
during the windshield survey at 4360 Mill Landing Road (Figure 4).
7.2 Public Water Supplies
According to the Dare County Water Department and confirmed in the field through visual observation of
water valves, public water is supplied to the subject property and surrounding area. The county utilizes five
treatment plants that desalinate well water located in Kill Devil Hills, Stumpy Point, Rodanthe, Frisco, and
Roanoke Island. Refer to Appendix E for the September 2020 Dare County Water System SWAP Report.
7.3 Surface Water
The harbor is located approximately 100 feet southwest of the source area.
7.4 Wellhead Protection Areas
According to the SWAPInfo 2.0 ArcGIS Viewer, wellhead protections areas are not located within 1,500 feet
of the source area (Appendix D).
7.5 Subsurface Structures
No significant subsurface structures such as basements were identified during the field survey.

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September 13, 2022
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8.0 SUMMARY AND CONCLUSIONS
Partner conducted a Phase I LSA at the subject property to evaluate the potential that a residual secondary
source of soil contamination remained in the spill area investigated during a recent Phase II Subsurface
Investigation. The scope of the Phase I LSA included a receptor survey and the advancement of four soil
borings to facilitate the collection and analysis of soil samples.
Subsurface lithology encountered in the upper 10 feet bgs consisted predominantly of poorly graded sand,
brown silt, and brown silty sand. Groundwater was encountered during this investigation at approximately
7 feet bgs.
Contaminant concentrations in soil samples from did not exceed Industrial/Commercial MSCCs. Further,
while the previously detected benzene concentration (160 µg/l) in groundwater sample B5-GW collected
during the prior Phase II exceeds the 2L Groundwater Standard, it does not exceed the Surface Water
Standard of 51 µg/l by a factor of 10 (510 µg/l).
One supply well was identified within 1,000 feet of the source area, approximately 920 feet north-northwest
of the source area. The well is 248 feet deep. Municipal water is available to the surrounding area. The
surface water of the harbor is located approximately 100 feet from the source area.
Based on the results of the Phase I LSA, the release meets the requirements of a Low Risk ranking as the
identified, except for the Wanchese Marine Industrial Park water well located approximately 920 feet from
the source area, just within the 1,000 feet buffer. Given the total depth of the well, the distance to the well,
and the identified benzene concentration, this well is not expected to be impacted by the release.

TABLES
Table 1: Site History – UST/AST System and Other Release Information
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
August 16, 2022
Revision Date: 9/12/22 Incident Number and Name: 96721, Outer Banks Marina

AST ID
Number
Current /
Most-
Recent
Contents*
Previous
Contents
Capacity
(in
gallons)
Construction
Details
Tank
Dimensions
Description
of Piping
and Pumps
Date
Tank
Installed
Status of AST Release
associated
with this
AST
System?
1 Gasoline NA 10,000 Steel 10’x17’ Unknown Unknown Operational Yes
2 Diesel NA 10,000 Steel 10’x17’ Unknown Unknown Operational Yes

Incident
Number
Material
Released
Date of
Release
Description of Release
96721

Diesel Unknown
(Reported
on
5/23/22)
Diesel fuel reportedly leaked from AST into secondary containment approximately 5 to 7
years ago under previous ownership. Containment stormwater piping was open and diesel
fuel reportedly leaked onto gravel-covered surface on the northeast side of the ASTs

Table 2: Site History – UST/AST Owner/Operator and Other Responsible Party Information
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
August 16, 2022 Revision Date 09/12/22 Incident Number and Name: 96721, Outer Banks Marina
UST ID Number 96721 Facility ID Number Unknown
Name of Owner Dates of Operation
SHM Outer Banks, LLC c/o Mark Liffers 01/19/22-present
Street Address
708 Harbor Road
City State Zip Telephone Number
Wanchese NC 27981 [phone]
Name of Operator Dates of Operation
(mm/dd/yy to mm/dd/yy)
Outer Banks Marine Maintenance, LLC Unknown-01/19/22 (exact date of AST
installation unknown) Street Address
P.O. Box 270
City State Zip Telephone Number
Wanchese NC 27981
Incident Number NA
Name of Other Responsible Party Dates of Release(s)
(mm/dd/yy to mm/dd/yy)
N/A
Street Address

City State Zip Telephone Number

Table 3: Summary of Investigation Scope
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
NCDEQ UST Incident Number 96721
August 16, 2022
Boring
Identification Issue Location
Terminal
Depth
(feet bgs)
Matrix
Sampled
Sampling
Depths
(feet bgs)
Target
Analytes
B6
Reported diesel
release from AST
secondary
containment area
North portion of
reported spill area,
southwest of former
boring B2
10 Soil 3 to 5 VOCs, SVOCs,
VPH, EPH
B7
Reported diesel
release from AST
secondary
containment area
Northwest portion of
reported spill area, north
of secondary
containment drain
discharge
10 Soil 3 to 5 VOCs, SVOCs,
VPH, EPH
B8
Reported diesel
release from AST
secondary
containment area
West portion of reported
spill area, southeast of
former boring B3
10 Soil 3 to 5 VOCs, SVOCs,
VPH, EPH
B9
Reported diesel
release from AST
secondary
containment area
South portion of
reported spill area,
southwest of former
boring B1
10 Soil 3 to 5 VOCs, SVOCs,
VPH, EPH
Notes:
VOCs = volatile organic compounds via EPA Method 8260D
SVOCs = semi volatile organic compounds via EPA Method 8270E
VPH = volatile organic hydrocarbons via the Massachusetts Department of Environmental Protection (MADEP) Method
EPH = extractable petroleum hydrocarbons via the MADEP Method
AST = above ground storage tank
bgs = below ground surface
Table 4: Soil Sample Laboratory Results Summary
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
NCDEQ UST Incident Number 96721
August 16, 2022
Analyte
NCDEQ UST
Section Soil-to-
Water MSCC
NCDEQ UST
Section
Industrial/
Commercial
MSCC
B6 3-5 B7 3-5 B8 3-5 B9 3-5
Acetone 24 210,000 0.020 J 0.026 0.016 J 0.038
Carbon Disulfide 3.7 23,300 <0.00069 0.00069 J 0.0086 0.0031 J
Other Analyzed VOCs Varies Varies <MDL <MDL <MDL <MDL
Benzoic Acid 120 934,000 0.72 J B <0.79 <0.79 <0.43
Caprolactam NE NE <0.037 <0.074 <0.074 0.044 J
Di-n-butyl Phthalate NE NE <0.037 <0.074 0.11 J 0.098 J
Other Analyzed SVOCs Varies Varies <MDL <MDL <MDL <MDL
C9-C12 Aliphatics (VPH)NE NE <1.6 <1.5 <1.5 <1.5
C9-C10 Aromatics (VPH)NE NE <0.84 <0.80 <0.81 <0.81
C11-C22 Aromatics (EPH)NE NE <3.3 <3.4 <3.3 <3.6
C9-C18 Aliphatics (EPH)See Calculated See Calculated <1.7 <1.8 <1.8 <1.9
C5-C8 Aliphatics (VPH)68 9,340 <3.0 <2.9 <2.9 <2.9
C9-C18 Aliphatics (calculated)540 23,300 <3.3 <3.4 <3.3 <3.4
C19-C36 Aliphatics (EPH)#46,700 <1.7 2.2 3.0 <1.9
C9-C22 Aromatics (calculated)31 7,000 <4.14 <4.20 <4.11 <4.41
Notes:
NCDEQ = North Carolina Department of Environmental Quality
UST = underground storage tank
MSCC = maximum soil contaminant level
VOCs = volatile organic compounds
EPA = United States Environmental Protection Agency
mg/kg = milligrams per kilogram
J = Result is less than the reporting limit (RL) but greater than or equal to the method detection limit (MDL) and the concentration is an approximate value.
< = not detected above the indicated MDL
<MDL = not detected above the laboratory MDL
SVOCs = semi volatile organic compounds via EPA Method 8270 with selective ion monitoring (SIM)
NE = not established
B = Compound was found in the blank and sample.
VPH = volatile organic hydrocarbons via the MADEP Method
EPH = extractable petroleum hydrocarbons via the Massachusetts Department of Environmental Protection (MADEP) Method
# = Health based level >100%
Values in bold detected above the laboratory MDL
SVOCs via EPA Method 8270E (mg/kg)
VOCs via EPA Method 8260D (mg/kg)
VPH and EPH via MADEP Method (mg/kg)
Table 5: Potential Receptor Information
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
August 16, 2022
Revision Date: 09/10/22 Incident Number and Name: 96721, Outer Banks Marina Facility ID#: Unknown___

Description

Location
Latitude/
Longitude (decimal degrees)

Contact

Phone
Number

Usage
Up or
down-
gradient
Distance
from
source area
of release
(ft.)
Harbor Southwest 36.098504/-79.416889 NA NA Marina Downgradient ~100

Table 6: Contiguous Property Owners/Occupants
712 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.13
August 16, 2022
Revision Date: 09/10/22 Incident Number and Name: 96721, Outer Banks Marina Fac ID#: Unknown

Tax Parcel
Numbers/Industrial
Park Lots*

Land Use
Feature
(including
zoning)

Wanchese Marine
Industrial Park Tenant
List as of April 27,
2022 per North
Carolina Marine
Industrial Park
Authority Website

Owner Address
024855008
Wanchese
Seafood Industrial
Park
Island Boatworks P.O. Box 96 Nags Head, NC 27959
024855010
Wanchese
Seafood Industrial
Park
Bayliss Boatworks P.O. Box 300 Wanchese, NC 27981
024855012
Wanchese
Seafood Industrial
Park
SHM Outer Banks LLC 14785 Preston Road, Suite 975 Dallas, TX 75254
024855026
Wanchese
Seafood Industrial
Park
Warship, LLC
82 North Shelmore Boulevard Mount Pleasant, SC 29464
024855027
Wanchese
Seafood Industrial
Park
Broad Creek Boat Works, LLC P.O. Box 6 Wanchese, NC 27981
024855020
Wanchese
Seafood Industrial
Park
Hathaway Marine P.O. Box 217 Wanchese, NC 27981
024855021
Wanchese
Seafood Industrial
Park O’Neal’s Sea Harvest P.O. Box 708 Wanchese, NC 27981

FIGURES
Legend
Figure Date
Approximate Scale: 1” = 240’
Prepared By
Project Number: 21-311567.13
Site Vicinity Map
1
712 Harbor Road
Wanchese, North Carolina 27981
D. Hriciga Aug. 2022
Subject Property
0 24012012060
N
R
o
c
k
Willowbrook
Apartments
Comfort Inn
970 Blowing
Rock Blvd
Wells Fargo
1005 Blowing
Rock Blvd
Exxon
Service Station
2601
Glenwood Avenue
Glenwood Village
Shopping Plaza
2603 Glenwood Avenue
Glenwood Village
Shopping Plaza
2603 Glenwood Avenue
Glenwood Gardens Apartments
2813-2901 Market Bridge Lane
Approximate Location of
Former Rainbow Cleaners
2915 Essex Circle
8720 Red Oak Boulevard, Suite 528
Charlotte, North Carolina 28217
Wanchese Marine
Industrial Park
(710 Harbor Road)
Wanchese Marine
Industrial Park
(904 Harbor Road)
Tract 2
Wanchese Marine
Industrial Park
(932 Harbor Road)
Wanchese Marine
Industrial Park
(620, 622 Harbor Road)
Broad Creek
Harbor HAR
BO
R

R
OAD
Tract 1
AST
Containment
Area
Note:
-AST = Aboveground Storage Tank
Area Shown
on Figure 3
Topographic Map
2
USGS Oregon Inlet, North Carolina
Quadrangle
Version: 2019
D. HricigaN
Subject
Property
Subject
Property
Figure DatePrepared By
8720 Red Oak Boulevard, Suite 528
Charlotte, North Carolina 28217
Aug. 2022
Project Number: 21-311567.13
712 Harbor Road
Wanchese, North Carolina 27981
Notes:-ADD NOTES FOR ACRONYMS
Boring Location
Legend
Figure DatePrepared By
8720 Red Oak Boulevard, Suite 528
Charlotte, North Carolina 28217
Gravel
Driveway
Sample Location Map
3 D. HricigaN WRIGHT
BROTHERS WAYExxon Service Station
2601 Glenwood AvenueBeaver Dam CreekNorthern
Containment
Area
Former Boring/Temporary
Well Point Locationl
B4
B5
B1
B2
B3
Project Number: 21-311567.13
Aug. 2022
Grass
AST
Secondary
Containment
Area
Diesel
AST
Gasoline
AST
Gravel
Driveway
Tiki Bar
Bathroom
Septic Tank
Reported Area
of Diesel Spill
Approximate Scale: 1” = 20’
0 2010105
Secondary
Containment
Stormwater Drain
Fuel Distribution
Sump and Pump
Note:
Borings B1 through B5 advanced
and sampled March 28, 2022
B9
B6
B8
B7
712 Harbor Road
Wanchese, North Carolina 27981
Zoning Key
Harbor Road Marine Commercial
Waterfront Residential
Wanchese Seafood Industrial Park
Historic Mill Landing
Wanchese Village Commercial
Water
Broad Creek
Harbor
Legend
Figure Prepared By Date
8720 Red Oak Boulevard, Suite 528
Charlotte, North Carolina 28217
Approximate Scale: 1” = ’400
Project Number: 21-311567.13
4
652, 708, 712, 750, 898, 915, 921, 929, and 931
Harbor Road, Wanchese, North Carolina 27217
D. Hriciga Sept. 2022NSubject Property
Supply Well
Source Area
1,500-Feet Radius
0 400200200 100
Land Use/Receptor Map
500-Feet Radius
4360 Mill
Landing Road
Wanchese MarineIndustrial ParkWell #1

APPENDIX A: PHASE II SAMPLING FIGURE AND TABLES
Notes:
-AST = Aboveground Storage Tank
Boring Location
Legend
Figure DatePrepared By
8720 Red Oak Boulevard, Suite 528
Charlotte, North Carolina 28217
Gravel
Driveway
Sample Location Map
3 D. HricigaN WRIGHT
BROTHERS WAYExxon Service Station
2601 Glenwood AvenueBeaver Dam CreekNorthern
Containment
Area
B4
B5 B1
B2
B3
Project Number: 21-311567.12
652, 708, 712, 750, 898, 915, 921, 929, and 931
Harbor Road, Wanchese, North Carolina 27981
April 2022
Grass
AST
Secondary
Containment
Area
Diesel
AST
Gasoline
AST
Gravel
Driveway
Tiki Bar
Bathroom
Septic Tank
Reported Area
of Diesel Spill
Approximate Scale: 1” = 20’
0 2010105
Secondary
Containment
Stormwater Drain
Fuel Distribution
Sump and Pump
Table 1: Summary of Investigation Scope
Outer Banks Marina
652, 708, 712, 750, 898, 915, 921, 929, and 931 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.12
March 28, 2022
Boring
Identification Issue Location
Terminal
Depth
(feet bgs)
Matrix
Sampled
Sampling
Depths
(feet bgs)
Target
Analytes
Soil 2 TPH-GRO
TPH-DRO
Groundwater 5-10 VOCs, PAHs
Soil 2 TPH-GRO
TPH-DRO
Groundwater 5-10 VOCs, PAHs
Soil 2 TPH-GRO
TPH-DRO
Groundwater 5-10 VOCs, PAHs
Soil 2 TPH-GRO
TPH-DRO
Groundwater 5-10 VOCs, PAHs
Soil 5 TPH-GRO
TPH-DRO
Groundwater 5-10 VOCs, PAHs
Notes:
AST = aboveground storage tank
TPH-GRO = total petroleum hydrocarbons gasoline range organics via EPA Method 8015D
TPH-DRO = total petroleum hydrocarbons diesel range organics via EPA Method 8015C
VOCs = volatile organic compounds via EPA Method 8260D
PAHs = polycyclic aromatic hydrocarbons via EPA Method 8270E-selective ion monitoring (SIM)
bgs = below ground surface
B1 South portion of the
reported spill area 10
Reported diesel
release from AST
secondary
containment
B2
Reported diesel
release from AST
secondary
containment
Northeast portion of the
reported spill area 10
B3
Reported diesel
release from AST
secondary
containment
Northwest portion of the
reported spill area 10
B4
Reported diesel
release from AST
secondary
containment
Adjacent to the secondary
containment stormwater
drain outfall
10
B5
Reported diesel
release from AST
secondary
containment
Northwest side of
secondary containment
area near the fuel pump
and sump
10
Table 2: Soil Sample Laboratory Results
Outer Banks Marina
652, 708, 712, 750, 898, 915, 921, 929, and 931 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.12
March 28, 2022
Analyte
NCDEQ UST
Section Action
Level
B1-2 B2-2 B3-2 B4-2 B5-5
TPH-GRO 50 0.741 B J 1.09 B J 0.948 B J 1.22 B J 27.1
TPH-DRO 100 3.43 J 1.75 J <0.833 <0.959 7.53
Notes:
NCDEQ = North Carolina Department of Environmental Quality
UST = underground storage tank
TPH-GRO = total petroleum hydrocarbons gasoline range organics
EPA = United States Environmental Protection Agency
mg/kg = milligrams per kilogram
B = The same analyte is found in the associated blank.
J = The identification of the analyte is acceptable; the reported value is an estimate.
TPH-DRO = total petroleum hydrocarbons diesel range organics
< = not detected above the indicated laboratory method detection limit (MDL)
Concentrations inbold detected above the laboratory MDL
TPH-DRO via EPA Method 8015C (mg/kg)
TPH-GRO via EPA Method 8015D (mg/kg)
Table 3: Groundwater Sample Laboratory Results
Outer Banks Marina
652, 708, 712, 750, 898, 915, 921, 929, and 931 Harbor Road
Wanchese, North Carolina 27981
Partner Project Number 21-311567.12
March 28, 2022
Analyte 2L Standard
or IMAC
Gross
Contamination
Level (GCL)
B1-GW B2-GW B3-GW B4-GW B5-GW
Acetone 6,000 6,000,000 14.7 J J4 <11.3 J4 <11.3 J4 <11.3 J4 21.6 J J4
Benzene 1 5,000 <0.0941 <0.0941 <0.0941 <0.0941 160
Di-Isopropyl Ether 70 70,000 <0.105 <0.105 <0.105 <0.105 28.0
Ethylbenzene 600 84,500 0.492 J <0.137 <0.137 <0.137 5.29
2-Butanone (MEK)4,000 4,000,000 2.34 J <1.19 <1.19 <1.19 3.24 J
4-Methyl-2-Pentanone (MIBK)100 100,000 1.66 J <0.478 <0.478 <0.478 <0.478
Methyl Tert-Butyl Ether 20 20,000 <0.101 <0.101 <0.101 <0.101 18.3
Toluene 600 260,000 <0.278 <0.278 <0.278 <0.278 28.9
1,2,4-Trimethylbenzene 400 28,500 <0.322 <0.322 <0.322 <0.322 0.512 J
1,2,3-Trimethylbenzene NE NE <0.104 <0.104 <0.104 <0.104 0.291 J
1,3,5-Trimethylbenzene 400 25,000 <0.104 <0.104 <0.104 <0.104 0.189 J
Xylenes, Total 500 85,500 5.05 0.515 J 0.572 J <0.174 29.8
Other Analyzed VOCs Varies Varies <MDL <MDL <MDL <MDL <MDL
Analyzed PAHs Various Various <MDL <MDL <MDL <MDL <MDL
Notes:
2L Standard = 15A NCAC 02L .0202 Groundwater Standard
IMAC = Interim Maximum Allowable Concentration
VOCs = volatile organic compounds
EPA = United States Environmental Protection Agency
µg/L = micrograms per liter
J = The identification of the analyte is acceptable; the reported value is an estimate.
J4 = The associated batch QC was outside the established quality control range for accuracy.
NE = not established
< = not detected above the indicated laboratory method detection limit (MDL)
<MDL = not detected above the laboratory MDL
PAHs = polycyclic aromatic hydrocarbons
SIM = selective ion monitoring
Concentrations in bold detected above the laboratory method detection limit (MDL)
Highlighted concentrations exceed the 2L Standard
VOCs via EPA Method 8260D (µg/L)
PAHs via EPA Method 8270E-SIM (µg/L)

APPENDIX B: BORING LOGS
08/16/22
Date Completed:08/16/22
~7
D. Hriciga
Depth PID USCS
1 0.0 SP
2 0.0
3 0.0
4 B6 3-5 0.0
5 0.0
6 0.0
7 0.0
8 0.0
9 0.0
10 0.0 SM
11
14
15
16
17
18
19
20
21
22
23
24
25
9'-10' Dark Brown Silty Sand, fine sand, wet,
organics
Boring terminated at 10 feet bgs
@ 5 feet wet
Low recovery from 0 to 5 feet bgs
0-9' Packed gravel driveway surface, then Brown
Poorly Graded Fine Sand, moist
Borehole Diameter:2.25 Inch Charlotte, North Carolina 28217
Sample Description Notes
Drill Rig Type:Track-mounted Geoprobe 7822DT
Sampling Equipment:Dual-Tube, PVC Liners 8720 Red Oak Boulevard, Suite 528
Site Address:712 Harbor Road
Wanchese, North Carolina 27981 Depth to Groundwater (feet bgs):
Project Number:21-311567.13 Field Technician:
Boring Identification:B6 Page 1 of 1
Boring Location:N portion of reported spill area, SW of boring B2 Date Started:
12
13
08/16/22
Date Completed:08/16/22
~7
D. Hriciga
Depth PID USCS
1 0.0 ML
2 0.0
3 0.0
4 B7 3-5 0.0
5 0.0
6 0.0 SP
7 0.0
8 0.0
9 0.0
10 0.0
11
14
15
16
17
18
19
20
21
22
23
24
25
Boring Identification:B7 Page 1 of 1
Boring Location:NW portion of reported spill area, N of drain discharge Date Started:
Site Address:712 Harbor Road
Wanchese, North Carolina 27981 Depth to Groundwater (feet bgs):
Project Number:21-311567.13 Field Technician:
Drill Rig Type:Track-mounted Geoprobe 7822DT
Sampling Equipment:Dual-Tube, PVC Liners 8720 Red Oak Boulevard, Suite 528
Borehole Diameter:2.25 Inch Charlotte, North Carolina 28217
Sample Description Notes
0-5' Packed gravel driveway surface, then Brown
Silt, firm, moist, peaty
Boring terminated at 10 feet bgs
6'-10' Brown Poorly Graded Fine Sand, wet
12
13
08/16/22
Date Completed:08/16/22
~7
D. Hriciga
Depth PID USCS
1 0.0 SP
2 0.0 ML
3 0.0
4 B8 3-5 0.0
5 0.0
6 0.0 SP
7 0.0
8 0.0 ML
9 0.0
10 0.0
11
14
15
16
17
18
19
20
21
22
23
24
25
Boring Identification:B8 Page 1 of 1
Boring Location:W portion of reported spill area, SE of boring B3 Date Started:
Site Address:712 Harbor Road
Wanchese, North Carolina 27981 Depth to Groundwater (feet bgs):
Project Number:21-311567.13 Field Technician:
Drill Rig Type:Track-mounted Geoprobe 7822DT
Sampling Equipment:Dual-Tube, PVC Liners 8720 Red Oak Boulevard, Suite 528
Borehole Diameter:2.25 Inch Charlotte, North Carolina 28217
Sample Description Notes
0-1' Packed gravel driveway surface, then Gray
Clay, soft, moist
1'-5' Brown Silt with Sand, soft, moist, peaty
Boring terminated at 10 feet bgs
5'-7' Light Brown Poorly Graded Fine Sand, wet
7'-10' Brown Silt with Sand, firm, wet, peaty
12
13
08/16/22
Date Completed:08/16/22
~7
D. Hriciga
Depth PID USCS
1 0.0 SP
2 0.0
3 0.0 ML
4 B8 3-5 0.0
5 0.0
6 0.0 SP
7 0.0
8 0.0 ML
9 0.0
10 0.0
11
14
15
16
17
18
19
20
21
22
23
24
25
Boring Identification:B9 Page 1 of 1
Boring Location:S portion of reported spill area, SW of boring B1 Date Started:
Site Address:712 Harbor Road
Wanchese, North Carolina 27981 Depth to Groundwater (feet bgs):
Project Number:21-311567.13 Field Technician:
Drill Rig Type:Track-mounted Geoprobe 7822DT
Sampling Equipment:Dual-Tube, PVC Liners 8720 Red Oak Boulevard, Suite 528
Borehole Diameter:2.25 Inch Charlotte, North Carolina 28217
Sample Description Notes
0-2' Packed gravel driveway surface, then Brown
Poorly Graded Fine Sand, moist
2'-5' Light Brown Silt, firm, moist, peaty
Boring terminated at 10 feet bgs
5'-7' Light Brown Poorly Graded Fine Sand, wet
7'-10' Brown Silt with Sand, firm, wet, peaty
12
13

APPENDIX C: LABORATORY ANALYTICAL REPORT
ANALYTICAL REPORT
Eurofins Pensacola
3355 McLemore Drive
Pensacola, FL 32514
Tel: [phone]
Laboratory Job ID: 400-224585-1
Client Project/Site: Outer Banks Marina
For:
Partner Engineering and Science, Inc
8720 Red Oak Boulevard
Suite 528
Charlotte, North Carolina 28217
Attn: Alex Smith
Authorized for release by:
8/29/2022 3:54:29 PM
Mark Swafford, Project Manager II
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI
requirements for accredited parameters, exceptions are noted in this report. This
report may not be reproduced except in full, and with written approval from the
laboratory. For questions please contact the Project Manager at the e-mail address or
telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Table of Contents
Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Laboratory Job ID: 400-224585-1
Page 2 of 55
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
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Case Narrative
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Job ID: 400-224585-1
Laboratory: Eurofins Pensacola
Narrative
Job Narrative
400-224585-1
Comments
No additional comments.
Receipt
The samples were received on 8/17/2022 9:01 AM. Unless otherwise noted below, the samples arrived in good condition, and where
required, properly preserved and on ice. The temperature of the cooler at receipt was 3.3º C.
GC/MS VOA
Method 8260D: The laboratory control sample (LCS) for preparation batch 400-589480 and analytical batch 400-589407 recovered outside
control limits for the following analytes: Chloromethane. These analytes were biased high in the LCS and were not detected in the
associated samples; therefore, the data have been reported.
Method 8260D: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with
preparation batch 400-589480 and analytical batch 400-589407. LCS/LCSD data is provided.
Method 8260D: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 400-589588 and analytical batch
400-589568 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the associated
laboratory control sample (LCS) recovery was within acceptance limits.
Method 8260D: The continuing calibration verification (CCV) associated with batch 400-589407 recovered above the upper control limit for
Chloromethane. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been
reported.
Method 8260D: The continuing calibration verification (CCV) associated with batch 400-589407 recovered outside acceptance criteria, low
biased, for Iodomethane. A reporting limit (RL) standard was analyzed, and the target analytes are detected. Since the associated
samples were non-detect for the analyte(s), the data are reported.
Method 8260D: The continuing calibration verification (CCV) associated with batch 400-589568 recovered above the upper control limit for
n-Butylbenzene. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been
reported.
Method 8260D: The continuing calibration verification (CCV) associated with batch 400-589568 recovered outside acceptance criteria, low
biased, for 2,2-Dichloropropane, Bromochloromethane, Carbon tetrachloride, Iodomethane and Trichlorofluoromethane. A reporting limit
(RL) standard was analyzed, and the target analytes are detected. Since the associated samples were non-detect for the analyte(s), the
data are reported.
Method 8260D: The matrix spike / matrix spike duplicate (MS/MSD) precision for preparation batch 400-589588 and analytical batch
400-589568 was outside control limits. Sample matrix interference is suspected.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
GC/MS Semi VOA
Method 8270E: The continuing calibration verification (CCV) associated with batch 400-589337 recovered above the upper control limit for
2,6-Dinitrotoluene and 4,6-Dinitro-2-methylphenol. The samples associated with this CCV were non-detects for the affected analytes;
therefore, the data have been reported.
Method 8270E: The method blank for preparation batch 400-589191 and analytical batch 400-589337 contained Benzoic acid above the
method detection limit. This target analyte concentration was less than the reporting limit (RL); therefore, re-extraction and/or re-analysis
of samples was not performed.
Method 8270E: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 400-589191 and analytical batch
400-589247 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the associated
Eurofins PensacolaPage 3 of 55
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Case Narrative
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Job ID: 400-224585-1 (Continued)
Laboratory: Eurofins Pensacola (Continued)
laboratory control sample (LCS) recovery was within acceptance limits.
Method 8270E: The continuing calibration verification (CCV) associated with batch 400-589247 recovered above the upper control limit for
Aniline and Phenol. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been
reported.
Method 8270E: The continuing calibration verification (CCV) associated with batch 400-589247 recovered above the upper control limit for
Caprolactam. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported.
Method 8270E: The following samples were diluted due to the nature of the sample matrix: B7-3-5 (400-224585-2) and B8-3-5
(400-224585-3). Elevated reporting limits (RLs) are provided.
Method 8270E: The matrix spike / matrix spike duplicate / sample duplicate (MS/MSD/DUP) precision for preparation batch 400-589191
and analytical batch 400-589247 was outside control limits. Sample matrix interference and/or non-homogeneity are suspected because
the associated laboratory control sample / laboratory control sample duplicate (LCS/LCSD) precision was within acceptance limits.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
GC VOA
Method MAVPH: The following samples were diluted because the base dilution for VPH soil analysis is 1:50:B6-3-5 (400-224585-1),
B7-3-5 (400-224585-2), B8-3-5 (400-224585-3) and B9-3-5 (400-224585-4).
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
GC Semi VOA
Method MA-EPH: The continuing calibration verification (CCV) associated with batch 400-590448 recovered above the upper control limit
for C19-C36 Aliphatics. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been
reported.
Method MA-EPH: Surrogate 1-Chlorooctadecane recovery for the following sample was outside the upper control limit, however, the target
analyte was within limits. Therefore the data has been reported. (400-224585-H-3-C MS).
Method MA-EPH: o-Terphenyl surrogate recovery for the following sample was outside control limits: (400-224585-H-3-D MSD). However,
the target analyte was within limits, therefore the data has been reported.
Method MA-EPH: o-Terphenyl surrogate recovery for the following sample was outside acceptance limits: B7-3-5 (400-224585-2). The
results have been reported, but the sample can be re-extracted if client requests.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Organic Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
Eurofins PensacolaPage 4 of 55
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Detection Summary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Client Sample ID: B6-3-5 Lab Sample ID: 400-224585-1
☼Acetone
RL
0.026 mg/Kg
MDL
0.013
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA1J0.020 8260D
☼Benzoic acid 1.1 mg/Kg0.39 Total/NA10.72 J B 8270E
Client Sample ID: B7-3-5 Lab Sample ID: 400-224585-2
☼Acetone
RL
0.021 mg/Kg
MDL
0.010
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA10.026 8260D
☼Carbon disulfide 0.0043 mg/Kg0.00056 Total/NA10.00069 J 8260D
☼C19-C36 Aliphatics 1.8 mg/Kg1.8 Total/NA12.2 MA-EPH
Client Sample ID: B8-3-5 Lab Sample ID: 400-224585-3
☼Acetone
RL
0.025 mg/Kg
MDL
0.012
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA1J0.016 8260D
☼Carbon disulfide 0.0049 mg/Kg0.00065 Total/NA10.0086 8260D
☼Di-n-butyl phthalate 0.74 mg/Kg0.074 Total/NA20.11 J 8270E
☼C19-C36 Aliphatics 1.8 mg/Kg1.8 Total/NA13.0 MA-EPH
Client Sample ID: B9-3-5 Lab Sample ID: 400-224585-4
☼Acetone
RL
0.026 mg/Kg
MDL
0.013
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA10.038 8260D
☼Carbon disulfide 0.0052 mg/Kg0.00069 Total/NA10.0031 J 8260D
☼Caprolactam 0.40 mg/Kg0.040 Total/NA10.044 J 8270E
☼Di-n-butyl phthalate 0.40 mg/Kg0.040 Total/NA10.098 J 8270E
Eurofins Pensacola
This Detection Summary does not include radiochemical test results.
Page 5 of 55
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Sample Summary
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Lab Sample ID Client Sample ID Matrix Collected Received
400-224585-1 B6-3-5 Solid 08/16/22 11:05 08/17/22 09:01
400-224585-2 B7-3-5 Solid 08/16/22 11:30 08/17/22 09:01
400-224585-3 B8-3-5 Solid 08/16/22 11:15 08/17/22 09:01
400-224585-4 B9-3-5 Solid 08/16/22 11:45 08/17/22 09:01
Eurofins PensacolaPage 6 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-1Client Sample ID: B6-3-5
Matrix: SolidDate Collected: 08/16/22 11:05
Percent Solids: 89.9Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS
RL MDL
1,1,1,2-Tetrachloroethane <0.0011 0.0052 0.0011 mg/Kg ☼08/19/22 09:41 08/19/22 15:45 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.0052 0.0011 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1,1-Trichloroethane <0.0011
0.0052 0.00086 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1,2,2-Tetrachloroethane <0.00086
0.0052 0.00081 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1,2-Trichloroethane <0.00081
0.0052 0.00087 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1-Dichloroethane <0.00087
0.0052 0.00089 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1-Dichloroethene <0.00089
0.0052 0.00087 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,1-Dichloropropene <0.00087
0.0052 0.0011 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2,3-Trichlorobenzene <0.0011
0.0052 0.00084 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2,3-Trichloropropane <0.00084
0.0052 0.00096 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2,4-Trichlorobenzene <0.00096
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2,4-Trimethylbenzene <0.0010
0.0052 0.0034 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2-Dibromo-3-Chloropropane <0.0034
0.0052 0.00074 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2-Dichlorobenzene <0.00074
0.0052 0.00086 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2-Dichloroethane <0.00086
0.0052 0.00079 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,2-Dichloropropane <0.00079
0.0052 0.00087 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,3,5-Trimethylbenzene <0.00087
0.0052 0.00099 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,3-Dichlorobenzene <0.00099
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,3-Dichloropropane <0.0010
0.0052 0.00090 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼1,4-Dichlorobenzene <0.00090
0.0052 0.0011 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼2,2-Dichloropropane <0.0011
0.0052 0.00085 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼2-Chlorotoluene <0.00085
0.026 0.0052 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼2-Hexanone <0.0052
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼4-Chlorotoluene <0.0010
0.026 0.013 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Acetone 0.020 J
0.0052 0.00070 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Benzene <0.00070
0.0052 0.0014 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Bromobenzene <0.0014
0.0052 0.0014 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Bromoform <0.0014
0.0052 0.0026 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Bromomethane <0.0026
0.0052 0.00069 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Carbon disulfide <0.00069
0.0052 0.0018 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Carbon tetrachloride <0.0018
0.0052 0.00054 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Chlorobenzene <0.00054
0.0052 0.00085 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Bromochloromethane <0.00085
0.0052 0.0013 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Dibromochloromethane <0.0013
0.0052 0.0013 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Chloroethane <0.0013
0.0052 0.0052 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Chloroform <0.0052
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Chloromethane <0.0010 *+
0.0052 0.00079 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼cis-1,2-Dichloroethene <0.00079
0.0052 0.0013 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼cis-1,3-Dichloropropene <0.0013
0.0052 0.00087 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Dibromomethane <0.00087
0.0052 0.00096 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Bromodichloromethane <0.00096
0.0052 0.0014 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Dichlorodifluoromethane <0.0014
0.0052 0.00064 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Ethylbenzene <0.00064
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Ethylene Dibromide <0.0010
0.0052 0.0026 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Hexachlorobutadiene <0.0026
0.0052 0.0035 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Iodomethane <0.0035
0.0052 0.00057 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Isopropyl ether <0.00057
0.0052 0.00071 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Isopropylbenzene <0.00071
0.026 0.0063 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Methyl Ethyl Ketone <0.0063
0.026 0.0052 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼methyl isobutyl ketone <0.0052
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-1Client Sample ID: B6-3-5
Matrix: SolidDate Collected: 08/16/22 11:05
Percent Solids: 89.9Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
RL MDL
Methyl tert-butyl ether <0.0010 0.0052 0.0010 mg/Kg ☼08/19/22 09:41 08/19/22 15:45 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.016 0.010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Methylene Chloride <0.010
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼n-Butylbenzene <0.0010
0.0052 0.00094 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼N-Propylbenzene <0.00094
0.0052 0.00099 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼sec-Butylbenzene <0.00099
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Styrene <0.0010
0.0052 0.0011 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼tert-Butylbenzene <0.0011
0.0052 0.0031 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Tetrachloroethene <0.0031
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Toluene <0.0010
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼trans-1,2-Dichloroethene <0.0010
0.0052 0.0011 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼trans-1,3-Dichloropropene <0.0011
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Trichloroethene <0.0010
0.0052 0.00090 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Trichlorofluoromethane <0.00090
0.026 0.0020 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Vinyl acetate <0.0020
0.0052 0.00084 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Vinyl chloride <0.00084
0.010 0.0020 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼Xylenes, Total <0.0020
0.0052 0.0010 mg/Kg 08/19/22 09:41 08/19/22 15:45 1☼p-Cymene <0.0010
4-Bromofluorobenzene 106 67-130 08/19/22 09:41 08/19/22 15:45 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 111 08/19/22 09:41 08/19/22 15:45 177-127
Toluene-d8 (Surr)95 08/19/22 09:41 08/19/22 15:45 176-127
Method: 8270E - Semivolatile Organic Compounds (GC/MS)
RL MDL
1,1'-Biphenyl <0.037 0.37 0.037 mg/Kg ☼08/17/22 15:27 08/18/22 19:13 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,2,4,5-Tetrachlorobenzene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,2,4-Trichlorobenzene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,2-Dichlorobenzene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,3-Dichlorobenzene <0.037
0.37 0.079 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,3-Dinitrobenzene <0.079
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,4-Dichlorobenzene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1,4-Dioxane <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼1-Methylnaphthalene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,2'-oxybis(1-chloropropane)<0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,3,4,6-Tetrachlorophenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4,5-Trichlorophenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4,6-Trichlorophenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4-Dichlorophenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4-Dimethylphenol <0.037
1.1 0.32 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4-Dinitrophenol <0.32
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,4-Dinitrotoluene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2,6-Dinitrotoluene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Chloronaphthalene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Chlorophenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Methylnaphthalene <0.037
0.37 0.089 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Methylphenol <0.089
0.37 0.078 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Nitroaniline <0.078
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼2-Nitrophenol <0.037
0.73 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼3 & 4 Methylphenol <0.037
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-1Client Sample ID: B6-3-5
Matrix: SolidDate Collected: 08/16/22 11:05
Percent Solids: 89.9Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
3,3'-Dichlorobenzidine <0.037 0.37 0.037 mg/Kg ☼08/17/22 15:27 08/18/22 19:13 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.37 0.087 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼3-Nitroaniline <0.087
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4,6-Dinitro-2-methylphenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Bromophenyl phenyl ether <0.037
0.37 0.090 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Chloro-3-methylphenol <0.090
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Chloroaniline <0.037 *-
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Chlorophenyl phenyl ether <0.037
0.37 0.13 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Nitroaniline <0.13
0.37 0.12 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼4-Nitrophenol <0.12
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Acenaphthene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Acenaphthylene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Acetophenone <0.037
0.37 0.048 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Aniline <0.048
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Anthracene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Atrazine <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Azobenzene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzaldehyde <0.037
1.1 0.11 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzidine <0.11
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzo[a]anthracene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzo[a]pyrene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzo[b]fluoranthene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzo[g,h,i]perylene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzo[k]fluoranthene <0.037
1.1 0.39 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzoic acid 0.72 J B
0.37 0.12 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Benzyl alcohol <0.12
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Bis(2-chloroethoxy)methane <0.037
0.37 0.10 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Bis(2-chloroethyl)ether <0.10
0.37 0.090 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Bis(2-ethylhexyl) phthalate <0.090
0.37 0.079 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Butyl benzyl phthalate <0.079
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Caprolactam <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Carbazole <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Chrysene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Dibenz(a,h)anthracene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Dibenzofuran <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Diethyl phthalate <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Dimethyl phthalate <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Di-n-butyl phthalate <0.037
0.37 0.13 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Di-n-octyl phthalate <0.13
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Fluoranthene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Fluorene <0.037
0.37 0.11 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Hexachlorobenzene <0.11
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Hexachlorobutadiene <0.037
0.37 0.073 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Hexachlorocyclopentadiene <0.073
0.37 0.034 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Hexachloroethane <0.034
0.37 0.076 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Hexadecane <0.076
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Indeno[1,2,3-cd]pyrene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Isophorone <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Naphthalene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼n-Decane <0.037
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-1Client Sample ID: B6-3-5
Matrix: SolidDate Collected: 08/16/22 11:05
Percent Solids: 89.9Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
Nitrobenzene <0.037 0.37 0.037 mg/Kg ☼08/17/22 15:27 08/18/22 19:13 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.37 0.073 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼N-Nitrosodimethylamine <0.073
0.37 0.042 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼N-Nitrosodi-n-propylamine <0.042
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼N-Nitrosodiphenylamine <0.037
0.37 0.082 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼n-Octadecane <0.082
0.73 0.073 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Pentachlorophenol <0.073
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Phenanthrene <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Phenol <0.037
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Pyrene <0.037
0.37 0.17 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Pyridine <0.17
0.37 0.037 mg/Kg 08/17/22 15:27 08/18/22 19:13 1☼Sulfolane <0.037
2,4,6-Tribromophenol (Surr)87 10-150 08/17/22 15:27 08/18/22 19:13 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
2-Fluorobiphenyl 76 08/17/22 15:27 08/18/22 19:13 127-127
2-Fluorophenol (Surr)79 08/17/22 15:27 08/18/22 19:13 125-128
Nitrobenzene-d5 (Surr)69 08/17/22 15:27 08/18/22 19:13 115-136
Phenol-d5 (Surr)80 08/17/22 15:27 08/18/22 19:13 129-130
Terphenyl-d14 (Surr)97 08/17/22 15:27 08/18/22 19:13 124-146
Method: MAVPH - Massachusetts - Volatile Petroleum Hydrocarbons (GC)
RL MDL
C5-C8 Aliphatics <3.0 3.0 3.0 mg/Kg ☼08/22/22 14:50 08/24/22 07:29 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.6 1.6 mg/Kg 08/22/22 14:50 08/24/22 07:29 50☼C9-C12 Aliphatics <1.6
0.84 0.84 mg/Kg 08/22/22 14:50 08/24/22 07:29 50☼C9-C10 Aromatics <0.84
a,a,a-Trifluorotoluene (fid)94 70-130 08/22/22 14:50 08/24/22 07:29 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)96 08/22/22 14:50 08/24/22 07:29 5070-130
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC)
RL MDL
C9-C18 Aliphatics <1.7 1.7 1.7 mg/Kg ☼08/23/22 14:01 08/26/22 21:08 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.7 1.7 mg/Kg 08/23/22 14:01 08/26/22 21:08 1☼C19-C36 Aliphatics <1.7
3.3 3.3 mg/Kg 08/23/22 14:01 08/27/22 00:42 1☼C11-C22 Aromatics <3.3
1-Chlorooctadecane 84 40-140 08/23/22 14:01 08/26/22 21:08 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
o-Terphenyl 54 08/23/22 14:01 08/27/22 00:42 140-140
2-Fluorobiphenyl 81 08/23/22 14:01 08/27/22 00:42 140-140
2-Bromonaphthalene 79 08/23/22 14:01 08/27/22 00:42 140-140
General Chemistry
RL MDL
Percent Moisture 10.1 0.01 0.01 %08/18/22 08:21 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-2Client Sample ID: B7-3-5
Matrix: SolidDate Collected: 08/16/22 11:30
Percent Solids: 87.2Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS
RL MDL
1,1,1,2-Tetrachloroethane <0.00094 0.0043 0.00094 mg/Kg ☼08/19/22 09:41 08/19/22 16:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.0043 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1,1-Trichloroethane <0.00094
0.0043 0.00070 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1,2,2-Tetrachloroethane <0.00070
0.0043 0.00066 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1,2-Trichloroethane <0.00066
0.0043 0.00071 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1-Dichloroethane <0.00071
0.0043 0.00072 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1-Dichloroethene <0.00072
0.0043 0.00071 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,1-Dichloropropene <0.00071
0.0043 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2,3-Trichlorobenzene <0.00094
0.0043 0.00068 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2,3-Trichloropropane <0.00068
0.0043 0.00078 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2,4-Trichlorobenzene <0.00078
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2,4-Trimethylbenzene <0.00085
0.0043 0.0028 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2-Dibromo-3-Chloropropane <0.0028
0.0043 0.00060 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2-Dichlorobenzene <0.00060
0.0043 0.00070 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2-Dichloroethane <0.00070
0.0043 0.00065 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,2-Dichloropropane <0.00065
0.0043 0.00071 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,3,5-Trimethylbenzene <0.00071
0.0043 0.00081 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,3-Dichlorobenzene <0.00081
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,3-Dichloropropane <0.00085
0.0043 0.00073 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼1,4-Dichlorobenzene <0.00073
0.0043 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼2,2-Dichloropropane <0.00094
0.0043 0.00069 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼2-Chlorotoluene <0.00069
0.021 0.0043 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼2-Hexanone <0.0043
0.0043 0.00083 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼4-Chlorotoluene <0.00083
0.021 0.010 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Acetone 0.026
0.0043 0.00057 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Benzene <0.00057
0.0043 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Bromobenzene <0.0011
0.0043 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Bromoform <0.0011
0.0043 0.0021 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Bromomethane <0.0021
0.0043 0.00056 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Carbon disulfide 0.00069 J
0.0043 0.0014 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Carbon tetrachloride <0.0014
0.0043 0.00044 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Chlorobenzene <0.00044
0.0043 0.00069 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Bromochloromethane <0.00069
0.0043 0.0010 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Dibromochloromethane <0.0010
0.0043 0.0010 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Chloroethane <0.0010
0.0043 0.0043 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Chloroform <0.0043
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Chloromethane <0.00085 *+
0.0043 0.00065 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼cis-1,2-Dichloroethene <0.00065
0.0043 0.0010 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼cis-1,3-Dichloropropene <0.0010
0.0043 0.00071 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Dibromomethane <0.00071
0.0043 0.00078 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Bromodichloromethane <0.00078
0.0043 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Dichlorodifluoromethane <0.0011
0.0043 0.00052 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Ethylbenzene <0.00052
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Ethylene Dibromide <0.00085
0.0043 0.0021 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Hexachlorobutadiene <0.0021
0.0043 0.0029 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Iodomethane <0.0029
0.0043 0.00047 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Isopropyl ether <0.00047
0.0043 0.00058 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Isopropylbenzene <0.00058
0.021 0.0051 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Methyl Ethyl Ketone <0.0051
0.021 0.0043 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼methyl isobutyl ketone <0.0043
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-2Client Sample ID: B7-3-5
Matrix: SolidDate Collected: 08/16/22 11:30
Percent Solids: 87.2Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
RL MDL
Methyl tert-butyl ether <0.00085 0.0043 0.00085 mg/Kg ☼08/19/22 09:41 08/19/22 16:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.013 0.0085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Methylene Chloride <0.0085
0.0043 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼n-Butylbenzene <0.00082
0.0043 0.00077 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼N-Propylbenzene <0.00077
0.0043 0.00081 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼sec-Butylbenzene <0.00081
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Styrene <0.00085
0.0043 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼tert-Butylbenzene <0.00094
0.0043 0.0026 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Tetrachloroethene <0.0026
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Toluene <0.00085
0.0043 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼trans-1,2-Dichloroethene <0.00082
0.0043 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼trans-1,3-Dichloropropene <0.00094
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Trichloroethene <0.00085
0.0043 0.00073 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Trichlorofluoromethane <0.00073
0.021 0.0016 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Vinyl acetate <0.0016
0.0043 0.00068 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Vinyl chloride <0.00068
0.0085 0.0016 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼Xylenes, Total <0.0016
0.0043 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:06 1☼p-Cymene <0.00085
4-Bromofluorobenzene 108 67-130 08/19/22 09:41 08/19/22 16:06 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 109 08/19/22 09:41 08/19/22 16:06 177-127
Toluene-d8 (Surr)97 08/19/22 09:41 08/19/22 16:06 176-127
Method: 8270E - Semivolatile Organic Compounds (GC/MS)
RL MDL
1,1'-Biphenyl <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 20:35 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,2,4,5-Tetrachlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,2,4-Trichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,2-Dichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,3-Dichlorobenzene <0.074
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,3-Dinitrobenzene <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,4-Dichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1,4-Dioxane <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼1-Methylnaphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,2'-oxybis(1-chloropropane)<0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,3,4,6-Tetrachlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4,5-Trichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4,6-Trichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4-Dichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4-Dimethylphenol <0.074
2.2 0.65 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4-Dinitrophenol <0.65
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,4-Dinitrotoluene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2,6-Dinitrotoluene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Chloronaphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Chlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Methylnaphthalene <0.074
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Methylphenol <0.18
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Nitroaniline <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼2-Nitrophenol <0.074
1.5 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼3 & 4 Methylphenol <0.074
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-2Client Sample ID: B7-3-5
Matrix: SolidDate Collected: 08/16/22 11:30
Percent Solids: 87.2Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
3,3'-Dichlorobenzidine <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 20:35 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼3-Nitroaniline <0.18
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4,6-Dinitro-2-methylphenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Bromophenyl phenyl ether <0.074
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Chloro-3-methylphenol <0.18
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Chloroaniline <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Chlorophenyl phenyl ether <0.074
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Nitroaniline <0.25
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼4-Nitrophenol <0.25
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Acenaphthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Acenaphthylene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Acetophenone <0.074
0.74 0.097 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Aniline <0.097
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Atrazine <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Azobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzaldehyde <0.074
2.2 0.22 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzidine <0.22
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzo[a]anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzo[a]pyrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzo[b]fluoranthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzo[g,h,i]perylene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzo[k]fluoranthene <0.074
2.2 0.79 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzoic acid <0.79
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Benzyl alcohol <0.25
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Bis(2-chloroethoxy)methane <0.074
0.74 0.21 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Bis(2-chloroethyl)ether <0.21
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Bis(2-ethylhexyl) phthalate <0.18
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Butyl benzyl phthalate <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Caprolactam <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Carbazole <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Chrysene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Dibenz(a,h)anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Dibenzofuran <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Diethyl phthalate <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Dimethyl phthalate <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Di-n-butyl phthalate <0.074
0.74 0.27 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Di-n-octyl phthalate <0.27
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Fluoranthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Fluorene <0.074
0.74 0.23 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Hexachlorobenzene <0.23
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Hexachlorobutadiene <0.074
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Hexachlorocyclopentadiene <0.15
0.74 0.070 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Hexachloroethane <0.070
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Hexadecane <0.15
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Indeno[1,2,3-cd]pyrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Isophorone <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Naphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼n-Decane <0.074
Eurofins Pensacola
Page 13 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-2Client Sample ID: B7-3-5
Matrix: SolidDate Collected: 08/16/22 11:30
Percent Solids: 87.2Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
Nitrobenzene <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 20:35 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼N-Nitrosodimethylamine <0.15
0.74 0.086 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼N-Nitrosodi-n-propylamine <0.086
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼N-Nitrosodiphenylamine <0.074
0.74 0.17 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼n-Octadecane <0.17
1.5 0.15 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Pentachlorophenol <0.15
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Phenanthrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Phenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Pyrene <0.074
0.74 0.34 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Pyridine <0.34
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 20:35 2☼Sulfolane <0.074
2,4,6-Tribromophenol (Surr)61 10-150 08/17/22 15:27 08/18/22 20:35 2
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
2-Fluorobiphenyl 71 08/17/22 15:27 08/18/22 20:35 227-127
2-Fluorophenol (Surr)60 08/17/22 15:27 08/18/22 20:35 225-128
Nitrobenzene-d5 (Surr)59 08/17/22 15:27 08/18/22 20:35 215-136
Phenol-d5 (Surr)63 08/17/22 15:27 08/18/22 20:35 229-130
Terphenyl-d14 (Surr)83 08/17/22 15:27 08/18/22 20:35 224-146
Method: MAVPH - Massachusetts - Volatile Petroleum Hydrocarbons (GC)
RL MDL
C5-C8 Aliphatics <2.9 2.9 2.9 mg/Kg ☼08/22/22 14:50 08/24/22 08:30 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.5 1.5 mg/Kg 08/22/22 14:50 08/24/22 08:30 50☼C9-C12 Aliphatics <1.5
0.80 0.80 mg/Kg 08/22/22 14:50 08/24/22 08:30 50☼C9-C10 Aromatics <0.80
a,a,a-Trifluorotoluene (fid)93 70-130 08/22/22 14:50 08/24/22 08:30 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)94 08/22/22 14:50 08/24/22 08:30 5070-130
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC)
RL MDL
C9-C18 Aliphatics <1.8 1.8 1.8 mg/Kg ☼08/23/22 14:01 08/29/22 13:55 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.8 1.8 mg/Kg 08/23/22 14:01 08/29/22 13:55 1☼C19-C36 Aliphatics 2.2
3.4 3.4 mg/Kg 08/23/22 14:01 08/27/22 00:58 1☼C11-C22 Aromatics <3.4
1-Chlorooctadecane 47 40-140 08/23/22 14:01 08/29/22 13:55 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
o-Terphenyl 31 S1-08/23/22 14:01 08/27/22 00:58 140-140
2-Fluorobiphenyl 76 08/23/22 14:01 08/27/22 00:58 140-140
2-Bromonaphthalene 75 08/23/22 14:01 08/27/22 00:58 140-140
General Chemistry
RL MDL
Percent Moisture 12.8 0.01 0.01 %08/18/22 08:21 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
Eurofins Pensacola
Page 14 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-3Client Sample ID: B8-3-5
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS
RL MDL
1,1,1,2-Tetrachloroethane <0.0011 0.0049 0.0011 mg/Kg ☼08/19/22 09:41 08/19/22 16:27 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.0049 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1,1-Trichloroethane <0.0011
0.0049 0.00081 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1,2,2-Tetrachloroethane <0.00081
0.0049 0.00077 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1,2-Trichloroethane <0.00077
0.0049 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1-Dichloroethane <0.00082
0.0049 0.00084 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1-Dichloroethene <0.00084
0.0049 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,1-Dichloropropene <0.00082
0.0049 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2,3-Trichlorobenzene <0.0011
0.0049 0.00079 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2,3-Trichloropropane <0.00079
0.0049 0.00091 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2,4-Trichlorobenzene <0.00091
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2,4-Trimethylbenzene <0.00098
0.0049 0.0032 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2-Dibromo-3-Chloropropane <0.0032
0.0049 0.00070 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2-Dichlorobenzene <0.00070
0.0049 0.00081 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2-Dichloroethane <0.00081
0.0049 0.00075 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,2-Dichloropropane <0.00075
0.0049 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,3,5-Trimethylbenzene <0.00082
0.0049 0.00093 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,3-Dichlorobenzene <0.00093
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,3-Dichloropropane <0.00098
0.0049 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼1,4-Dichlorobenzene <0.00085
0.0049 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼2,2-Dichloropropane <0.0011
0.0049 0.00080 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼2-Chlorotoluene <0.00080
0.025 0.0049 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼2-Hexanone <0.0049
0.0049 0.00096 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼4-Chlorotoluene <0.00096
0.025 0.012 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Acetone 0.016 J
0.0049 0.00066 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Benzene <0.00066
0.0049 0.0013 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Bromobenzene <0.0013
0.0049 0.0013 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Bromoform <0.0013
0.0049 0.0025 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Bromomethane <0.0025
0.0049 0.00065 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Carbon disulfide 0.0086
0.0049 0.0017 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Carbon tetrachloride <0.0017
0.0049 0.00051 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Chlorobenzene <0.00051
0.0049 0.00080 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Bromochloromethane <0.00080
0.0049 0.0012 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Dibromochloromethane <0.0012
0.0049 0.0012 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Chloroethane <0.0012
0.0049 0.0049 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Chloroform <0.0049
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Chloromethane <0.00098 *+
0.0049 0.00075 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼cis-1,2-Dichloroethene <0.00075
0.0049 0.0012 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼cis-1,3-Dichloropropene <0.0012
0.0049 0.00082 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Dibromomethane <0.00082
0.0049 0.00091 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Bromodichloromethane <0.00091
0.0049 0.0013 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Dichlorodifluoromethane <0.0013
0.0049 0.00060 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Ethylbenzene <0.00060
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Ethylene Dibromide <0.00098
0.0049 0.0025 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Hexachlorobutadiene <0.0025
0.0049 0.0033 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Iodomethane <0.0033
0.0049 0.00054 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Isopropyl ether <0.00054
0.0049 0.00067 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Isopropylbenzene <0.00067
0.025 0.0059 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Methyl Ethyl Ketone <0.0059
0.025 0.0049 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼methyl isobutyl ketone <0.0049
Eurofins Pensacola
Page 15 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-3Client Sample ID: B8-3-5
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
RL MDL
Methyl tert-butyl ether <0.00098 0.0049 0.00098 mg/Kg ☼08/19/22 09:41 08/19/22 16:27 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.015 0.0098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Methylene Chloride <0.0098
0.0049 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼n-Butylbenzene <0.00094
0.0049 0.00089 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼N-Propylbenzene <0.00089
0.0049 0.00093 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼sec-Butylbenzene <0.00093
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Styrene <0.00098
0.0049 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼tert-Butylbenzene <0.0011
0.0049 0.0030 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Tetrachloroethene <0.0030
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Toluene <0.00098
0.0049 0.00094 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼trans-1,2-Dichloroethene <0.00094
0.0049 0.0011 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼trans-1,3-Dichloropropene <0.0011
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Trichloroethene <0.00098
0.0049 0.00085 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Trichlorofluoromethane <0.00085
0.025 0.0019 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Vinyl acetate <0.0019
0.0049 0.00079 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Vinyl chloride <0.00079
0.0098 0.0019 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼Xylenes, Total <0.0019
0.0049 0.00098 mg/Kg 08/19/22 09:41 08/19/22 16:27 1☼p-Cymene <0.00098
4-Bromofluorobenzene 101 67-130 08/19/22 09:41 08/19/22 16:27 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 108 08/19/22 09:41 08/19/22 16:27 177-127
Toluene-d8 (Surr)99 08/19/22 09:41 08/19/22 16:27 176-127
Method: 8270E - Semivolatile Organic Compounds (GC/MS)
RL MDL
1,1'-Biphenyl <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 21:01 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,2,4,5-Tetrachlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,2,4-Trichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,2-Dichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,3-Dichlorobenzene <0.074
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,3-Dinitrobenzene <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,4-Dichlorobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1,4-Dioxane <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼1-Methylnaphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,2'-oxybis(1-chloropropane)<0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,3,4,6-Tetrachlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4,5-Trichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4,6-Trichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4-Dichlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4-Dimethylphenol <0.074
2.2 0.65 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4-Dinitrophenol <0.65
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,4-Dinitrotoluene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2,6-Dinitrotoluene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Chloronaphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Chlorophenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Methylnaphthalene <0.074
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Methylphenol <0.18
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Nitroaniline <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼2-Nitrophenol <0.074
1.5 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼3 & 4 Methylphenol <0.074
Eurofins Pensacola
Page 16 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-3Client Sample ID: B8-3-5
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
3,3'-Dichlorobenzidine <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 21:01 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼3-Nitroaniline <0.18
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4,6-Dinitro-2-methylphenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Bromophenyl phenyl ether <0.074
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Chloro-3-methylphenol <0.18
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Chloroaniline <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Chlorophenyl phenyl ether <0.074
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Nitroaniline <0.25
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼4-Nitrophenol <0.25
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Acenaphthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Acenaphthylene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Acetophenone <0.074
0.74 0.097 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Aniline <0.097
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Atrazine <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Azobenzene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Benzaldehyde <0.074
2.2 0.22 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Benzidine <0.22
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Benzo[a]anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Benzo[a]pyrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Benzo[b]fluoranthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Benzo[g,h,i]perylene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Benzo[k]fluoranthene <0.074
2.2 0.79 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Benzoic acid <0.79
0.74 0.25 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Benzyl alcohol <0.25
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Bis(2-chloroethoxy)methane <0.074
0.74 0.21 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Bis(2-chloroethyl)ether <0.21
0.74 0.18 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Bis(2-ethylhexyl) phthalate <0.18
0.74 0.16 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Butyl benzyl phthalate <0.16
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Caprolactam <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Carbazole <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Chrysene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Dibenz(a,h)anthracene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Dibenzofuran <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Diethyl phthalate <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Dimethyl phthalate <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Di-n-butyl phthalate 0.11 J
0.74 0.27 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Di-n-octyl phthalate <0.27
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Fluoranthene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Fluorene <0.074
0.74 0.22 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Hexachlorobenzene <0.22
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Hexachlorobutadiene <0.074
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Hexachlorocyclopentadiene <0.15
0.74 0.070 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Hexachloroethane <0.070
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Hexadecane <0.15
0.74 0.074 mg/Kg 08/17/22 15:27 08/19/22 22:52 2☼Indeno[1,2,3-cd]pyrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Isophorone <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Naphthalene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼n-Decane <0.074
Eurofins Pensacola
Page 17 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-3Client Sample ID: B8-3-5
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
Nitrobenzene <0.074 0.74 0.074 mg/Kg ☼08/17/22 15:27 08/18/22 21:01 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.74 0.15 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼N-Nitrosodimethylamine <0.15
0.74 0.085 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼N-Nitrosodi-n-propylamine <0.085
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼N-Nitrosodiphenylamine <0.074
0.74 0.17 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼n-Octadecane <0.17
1.5 0.15 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Pentachlorophenol <0.15
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Phenanthrene <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Phenol <0.074
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Pyrene <0.074
0.74 0.34 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Pyridine <0.34
0.74 0.074 mg/Kg 08/17/22 15:27 08/18/22 21:01 2☼Sulfolane <0.074
2,4,6-Tribromophenol (Surr)67 10-150 08/17/22 15:27 08/18/22 21:01 2
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
2-Fluorobiphenyl 84 08/17/22 15:27 08/18/22 21:01 227-127
2-Fluorophenol (Surr)67 08/17/22 15:27 08/18/22 21:01 225-128
Nitrobenzene-d5 (Surr)64 08/17/22 15:27 08/18/22 21:01 215-136
Phenol-d5 (Surr)72 08/17/22 15:27 08/18/22 21:01 229-130
Terphenyl-d14 (Surr)99 08/17/22 15:27 08/18/22 21:01 224-146
Method: MAVPH - Massachusetts - Volatile Petroleum Hydrocarbons (GC)
RL MDL
C5-C8 Aliphatics <2.9 2.9 2.9 mg/Kg ☼08/22/22 14:50 08/24/22 09:30 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.5 1.5 mg/Kg 08/22/22 14:50 08/24/22 09:30 50☼C9-C12 Aliphatics <1.5
0.81 0.81 mg/Kg 08/22/22 14:50 08/24/22 09:30 50☼C9-C10 Aromatics <0.81
a,a,a-Trifluorotoluene (fid)94 70-130 08/22/22 14:50 08/24/22 09:30 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)96 08/22/22 14:50 08/24/22 09:30 5070-130
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC)
RL MDL
C9-C18 Aliphatics <1.8 1.8 1.8 mg/Kg ☼08/23/22 14:01 08/29/22 13:39 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.8 1.8 mg/Kg 08/23/22 14:01 08/29/22 13:39 1☼C19-C36 Aliphatics 3.0
3.3 3.3 mg/Kg 08/23/22 14:01 08/26/22 23:52 1☼C11-C22 Aromatics <3.3
1-Chlorooctadecane 59 40-140 08/23/22 14:01 08/29/22 13:39 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
o-Terphenyl 42 08/23/22 14:01 08/26/22 23:52 140-140
2-Fluorobiphenyl 83 08/23/22 14:01 08/26/22 23:52 140-140
2-Bromonaphthalene 82 08/23/22 14:01 08/26/22 23:52 140-140
General Chemistry
RL MDL
Percent Moisture 11.2 0.01 0.01 %08/18/22 08:21 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
Eurofins Pensacola
Page 18 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-4Client Sample ID: B9-3-5
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS
RL MDL
1,1,1,2-Tetrachloroethane <0.0011 0.0052 0.0011 mg/Kg ☼08/20/22 13:06 08/20/22 17:37 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.0052 0.0011 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1,1-Trichloroethane <0.0011
0.0052 0.00086 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1,2,2-Tetrachloroethane <0.00086
0.0052 0.00081 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1,2-Trichloroethane <0.00081
0.0052 0.00087 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1-Dichloroethane <0.00087
0.0052 0.00089 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1-Dichloroethene <0.00089
0.0052 0.00087 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,1-Dichloropropene <0.00087
0.0052 0.0011 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2,3-Trichlorobenzene <0.0011
0.0052 0.00083 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2,3-Trichloropropane <0.00083
0.0052 0.00096 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2,4-Trichlorobenzene <0.00096
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2,4-Trimethylbenzene <0.0010
0.0052 0.0034 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2-Dibromo-3-Chloropropane <0.0034
0.0052 0.00074 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2-Dichlorobenzene <0.00074
0.0052 0.00086 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2-Dichloroethane <0.00086
0.0052 0.00079 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,2-Dichloropropane <0.00079
0.0052 0.00087 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,3,5-Trimethylbenzene <0.00087
0.0052 0.00099 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,3-Dichlorobenzene <0.00099
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,3-Dichloropropane <0.0010
0.0052 0.00090 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼1,4-Dichlorobenzene <0.00090
0.0052 0.0011 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼2,2-Dichloropropane <0.0011
0.0052 0.00084 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼2-Chlorotoluene <0.00084
0.026 0.0052 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼2-Hexanone <0.0052
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼4-Chlorotoluene <0.0010
0.026 0.013 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Acetone 0.038
0.0052 0.00070 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Benzene <0.00070
0.0052 0.0014 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Bromobenzene <0.0014
0.0052 0.0014 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Bromoform <0.0014
0.0052 0.0026 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Bromomethane <0.0026
0.0052 0.00069 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Carbon disulfide 0.0031 J
0.0052 0.0018 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Carbon tetrachloride <0.0018
0.0052 0.00054 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Chlorobenzene <0.00054
0.0052 0.00084 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Bromochloromethane <0.00084
0.0052 0.0013 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Dibromochloromethane <0.0013
0.0052 0.0013 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Chloroethane <0.0013
0.0052 0.0052 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Chloroform <0.0052
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Chloromethane <0.0010
0.0052 0.00079 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼cis-1,2-Dichloroethene <0.00079
0.0052 0.0013 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼cis-1,3-Dichloropropene <0.0013
0.0052 0.00087 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Dibromomethane <0.00087
0.0052 0.00096 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Bromodichloromethane <0.00096
0.0052 0.0014 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Dichlorodifluoromethane <0.0014
0.0052 0.00064 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Ethylbenzene <0.00064
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Ethylene Dibromide <0.0010
0.0052 0.0026 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Hexachlorobutadiene <0.0026
0.0052 0.0035 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Iodomethane <0.0035
0.0052 0.00057 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Isopropyl ether <0.00057
0.0052 0.00071 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Isopropylbenzene <0.00071
0.026 0.0063 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Methyl Ethyl Ketone <0.0063
0.026 0.0052 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼methyl isobutyl ketone <0.0052
Eurofins Pensacola
Page 19 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-4Client Sample ID: B9-3-5
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
RL MDL
Methyl tert-butyl ether <0.0010 0.0052 0.0010 mg/Kg ☼08/20/22 13:06 08/20/22 17:37 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.016 0.010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Methylene Chloride <0.010
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼n-Butylbenzene <0.0010
0.0052 0.00094 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼N-Propylbenzene <0.00094
0.0052 0.00099 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼sec-Butylbenzene <0.00099
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Styrene <0.0010
0.0052 0.0011 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼tert-Butylbenzene <0.0011
0.0052 0.0031 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Tetrachloroethene <0.0031
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Toluene <0.0010
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼trans-1,2-Dichloroethene <0.0010
0.0052 0.0011 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼trans-1,3-Dichloropropene <0.0011
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Trichloroethene <0.0010
0.0052 0.00090 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Trichlorofluoromethane <0.00090
0.026 0.0020 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Vinyl acetate <0.0020
0.0052 0.00083 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Vinyl chloride <0.00083
0.010 0.0020 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼Xylenes, Total <0.0020
0.0052 0.0010 mg/Kg 08/20/22 13:06 08/20/22 17:37 1☼p-Cymene <0.0010
4-Bromofluorobenzene 101 67-130 08/20/22 13:06 08/20/22 17:37 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 93 08/20/22 13:06 08/20/22 17:37 177-127
Toluene-d8 (Surr)102 08/20/22 13:06 08/20/22 17:37 176-127
Method: 8270E - Semivolatile Organic Compounds (GC/MS)
RL MDL
1,1'-Biphenyl <0.040 0.40 0.040 mg/Kg ☼08/17/22 15:27 08/18/22 17:33 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,2,4,5-Tetrachlorobenzene <0.040 F1
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,2,4-Trichlorobenzene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,2-Dichlorobenzene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,3-Dichlorobenzene <0.040
0.40 0.087 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,3-Dinitrobenzene <0.087
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,4-Dichlorobenzene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1,4-Dioxane <0.040 F1
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼1-Methylnaphthalene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,2'-oxybis(1-chloropropane)<0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,3,4,6-Tetrachlorophenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4,5-Trichlorophenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4,6-Trichlorophenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4-Dichlorophenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4-Dimethylphenol <0.040
1.2 0.35 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4-Dinitrophenol <0.35
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,4-Dinitrotoluene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2,6-Dinitrotoluene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Chloronaphthalene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Chlorophenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Methylnaphthalene <0.040
0.40 0.098 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Methylphenol <0.098
0.40 0.086 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Nitroaniline <0.086
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼2-Nitrophenol <0.040
0.81 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼3 & 4 Methylphenol <0.040
Eurofins Pensacola
Page 20 of 55
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-4Client Sample ID: B9-3-5
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
3,3'-Dichlorobenzidine <0.040 0.40 0.040 mg/Kg ☼08/17/22 15:27 08/18/22 17:33 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.40 0.095 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼3-Nitroaniline <0.095
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4,6-Dinitro-2-methylphenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Bromophenyl phenyl ether <0.040
0.40 0.099 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Chloro-3-methylphenol <0.099
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Chloroaniline <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Chlorophenyl phenyl ether <0.040
0.40 0.14 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Nitroaniline <0.14
0.40 0.13 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼4-Nitrophenol <0.13
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Acenaphthene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Acenaphthylene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Acetophenone <0.040
0.40 0.053 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Aniline <0.053
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Anthracene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Atrazine <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Azobenzene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzaldehyde <0.040
1.2 0.12 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzidine <0.12 F1 F2
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzo[a]anthracene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzo[a]pyrene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzo[b]fluoranthene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzo[g,h,i]perylene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzo[k]fluoranthene <0.040
1.2 0.43 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzoic acid <0.43
0.40 0.13 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Benzyl alcohol <0.13 F1
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Bis(2-chloroethoxy)methane <0.040
0.40 0.11 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Bis(2-chloroethyl)ether <0.11 F2
0.40 0.099 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Bis(2-ethylhexyl) phthalate <0.099
0.40 0.087 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Butyl benzyl phthalate <0.087
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Caprolactam 0.044 J
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Carbazole <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Chrysene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Dibenz(a,h)anthracene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Dibenzofuran <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Diethyl phthalate <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Dimethyl phthalate <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Di-n-butyl phthalate 0.098 J
0.40 0.15 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Di-n-octyl phthalate <0.15
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Fluoranthene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Fluorene <0.040
0.40 0.12 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Hexachlorobenzene <0.12
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Hexachlorobutadiene <0.040
0.40 0.081 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Hexachlorocyclopentadiene <0.081 F1
0.40 0.038 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Hexachloroethane <0.038 F1
0.40 0.083 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Hexadecane <0.083
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Indeno[1,2,3-cd]pyrene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Isophorone <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Naphthalene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼n-Decane <0.040
Eurofins Pensacola
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Client Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Lab Sample ID: 400-224585-4Client Sample ID: B9-3-5
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
RL MDL
Nitrobenzene <0.040 0.40 0.040 mg/Kg ☼08/17/22 15:27 08/18/22 17:33 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.40 0.081 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼N-Nitrosodimethylamine <0.081
0.40 0.047 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼N-Nitrosodi-n-propylamine <0.047
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼N-Nitrosodiphenylamine <0.040
0.40 0.091 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼n-Octadecane <0.091
0.81 0.081 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Pentachlorophenol <0.081
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Phenanthrene <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Phenol <0.040
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Pyrene <0.040
0.40 0.18 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Pyridine <0.18
0.40 0.040 mg/Kg 08/17/22 15:27 08/18/22 17:33 1☼Sulfolane <0.040
2,4,6-Tribromophenol (Surr)73 10-150 08/17/22 15:27 08/18/22 17:33 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
2-Fluorobiphenyl 89 08/17/22 15:27 08/18/22 17:33 127-127
2-Fluorophenol (Surr)70 08/17/22 15:27 08/18/22 17:33 125-128
Nitrobenzene-d5 (Surr)66 08/17/22 15:27 08/18/22 17:33 115-136
Phenol-d5 (Surr)75 08/17/22 15:27 08/18/22 17:33 129-130
Terphenyl-d14 (Surr)113 08/17/22 15:27 08/18/22 17:33 124-146
Method: MAVPH - Massachusetts - Volatile Petroleum Hydrocarbons (GC)
RL MDL
C5-C8 Aliphatics <2.9 2.9 2.9 mg/Kg ☼08/22/22 14:50 08/24/22 10:30 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.5 1.5 mg/Kg 08/22/22 14:50 08/24/22 10:30 50☼C9-C12 Aliphatics <1.5
0.81 0.81 mg/Kg 08/22/22 14:50 08/24/22 10:30 50☼C9-C10 Aromatics <0.81
a,a,a-Trifluorotoluene (fid)94 70-130 08/22/22 14:50 08/24/22 10:30 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)91 08/22/22 14:50 08/24/22 10:30 5070-130
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC)
RL MDL
C9-C18 Aliphatics <1.9 1.9 1.9 mg/Kg ☼08/23/22 14:01 08/26/22 21:57 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.9 1.9 mg/Kg 08/23/22 14:01 08/26/22 21:57 1☼C19-C36 Aliphatics <1.9
3.6 3.6 mg/Kg 08/23/22 14:01 08/27/22 01:32 1☼C11-C22 Aromatics <3.6
1-Chlorooctadecane 75 40-140 08/23/22 14:01 08/26/22 21:57 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
o-Terphenyl 49 08/23/22 14:01 08/27/22 01:32 140-140
2-Fluorobiphenyl 70 08/23/22 14:01 08/27/22 01:32 140-140
2-Bromonaphthalene 69 08/23/22 14:01 08/27/22 01:32 140-140
General Chemistry
RL MDL
Percent Moisture 19.2 0.01 0.01 %08/18/22 08:21 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
Eurofins Pensacola
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Definitions/Glossary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Qualifiers
GC/MS VOA
Qualifier Description
*+LCS and/or LCSD is outside acceptance limits, high biased.
Qualifier
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
GC/MS Semi VOA
Qualifier Description
B Compound was found in the blank and sample.
Qualifier
F1 MS and/or MSD recovery exceeds control limits.
F2 MS/MSD RPD exceeds control limits
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
GC Semi VOA
Qualifier Description
S1-Surrogate recovery exceeds control limits, low biased.
Qualifier
S1+Surrogate recovery exceeds control limits, high biased.
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Pensacola
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QC Association Summary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
GC/MS VOA
Analysis Batch: 589407
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 8260D 589480400-224585-1 B6-3-5 Total/NA
Solid 8260D 589480400-224585-2 B7-3-5 Total/NA
Solid 8260D 589480400-224585-3 B8-3-5 Total/NA
Solid 8260D 589480MB 400-589480/3-A Method Blank Total/NA
Solid 8260D 589480LCS 400-589480/1-A Lab Control Sample Total/NA
Solid 8260D 589480LCSD 400-589480/2-A Lab Control Sample Dup Total/NA
Prep Batch: 589480
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 5035400-224585-1 B6-3-5 Total/NA
Solid 5035400-224585-2 B7-3-5 Total/NA
Solid 5035400-224585-3 B8-3-5 Total/NA
Solid 5035MB 400-589480/3-A Method Blank Total/NA
Solid 5035LCS 400-589480/1-A Lab Control Sample Total/NA
Solid 5035LCSD 400-589480/2-A Lab Control Sample Dup Total/NA
Analysis Batch: 589568
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 8260D 589588400-224585-4 B9-3-5 Total/NA
Solid 8260D 589588MB 400-589588/2-A Method Blank Total/NA
Solid 8260D 589588LCS 400-589588/1-A Lab Control Sample Total/NA
Prep Batch: 589588
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 5035400-224585-4 B9-3-5 Total/NA
Solid 5035MB 400-589588/2-A Method Blank Total/NA
Solid 5035LCS 400-589588/1-A Lab Control Sample Total/NA
GC/MS Semi VOA
Prep Batch: 589191
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 3546400-224585-1 B6-3-5 Total/NA
Solid 3546400-224585-2 B7-3-5 Total/NA
Solid 3546400-224585-3 B8-3-5 Total/NA
Solid 3546400-224585-4 B9-3-5 Total/NA
Solid 3546MB 400-589191/1-A Method Blank Total/NA
Solid 3546LCS 400-589191/2-A Lab Control Sample Total/NA
Solid 3546400-224585-4 MS B9-3-5 Total/NA
Solid 3546400-224585-4 MSD B9-3-5 Total/NA
Analysis Batch: 589247
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 8270E 589191400-224585-2 B7-3-5 Total/NA
Solid 8270E 589191400-224585-3 B8-3-5 Total/NA
Solid 8270E 589191400-224585-4 B9-3-5 Total/NA
Solid 8270E 589191400-224585-4 MS B9-3-5 Total/NA
Solid 8270E 589191400-224585-4 MSD B9-3-5 Total/NA
Eurofins Pensacola
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QC Association Summary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
GC/MS Semi VOA
Analysis Batch: 589337
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 8270E 589191400-224585-1 B6-3-5 Total/NA
Solid 8270E 589191MB 400-589191/1-A Method Blank Total/NA
Solid 8270E 589191LCS 400-589191/2-A Lab Control Sample Total/NA
Analysis Batch: 589414
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 8270E 589191400-224585-3 B8-3-5 Total/NA
GC VOA
Prep Batch: 589782
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 5035400-224585-1 B6-3-5 Total/NA
Solid 5035400-224585-2 B7-3-5 Total/NA
Solid 5035400-224585-3 B8-3-5 Total/NA
Solid 5035400-224585-4 B9-3-5 Total/NA
Solid 5035MB 400-589782/1-A Method Blank Total/NA
Solid 5035LCS 400-589782/2-A Lab Control Sample Total/NA
Solid 5035LCSD 400-589782/3-A Lab Control Sample Dup Total/NA
Analysis Batch: 589783
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid MAVPH 589782400-224585-1 B6-3-5 Total/NA
Solid MAVPH 589782400-224585-2 B7-3-5 Total/NA
Solid MAVPH 589782400-224585-3 B8-3-5 Total/NA
Solid MAVPH 589782400-224585-4 B9-3-5 Total/NA
Solid MAVPH 589782MB 400-589782/1-A Method Blank Total/NA
Solid MAVPH 589782LCS 400-589782/2-A Lab Control Sample Total/NA
Solid MAVPH 589782LCSD 400-589782/3-A Lab Control Sample Dup Total/NA
GC Semi VOA
Prep Batch: 589859
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid 3546400-224585-1 B6-3-5 Total/NA
Solid 3546400-224585-2 B7-3-5 Total/NA
Solid 3546400-224585-3 B8-3-5 Total/NA
Solid 3546400-224585-4 B9-3-5 Total/NA
Solid 3546MB 400-589859/1-A Method Blank Total/NA
Solid 3546LCS 400-589859/2-A Lab Control Sample Total/NA
Solid 3546LCSD 400-589859/10-A Lab Control Sample Dup Total/NA
Solid 3546400-224585-3 MS B8-3-5 Total/NA
Solid 3546400-224585-3 MSD B8-3-5 Total/NA
Analysis Batch: 590448
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid MA-EPH 589859400-224585-1 B6-3-5 Total/NA
Solid MA-EPH 589859400-224585-4 B9-3-5 Total/NA
Solid MA-EPH 589859MB 400-589859/1-A Method Blank Total/NA
Solid MA-EPH 589859LCS 400-589859/2-A Lab Control Sample Total/NA
Solid MA-EPH 589859LCSD 400-589859/10-A Lab Control Sample Dup Total/NA
Solid MA-EPH 589859400-224585-3 MS B8-3-5 Total/NA
Eurofins Pensacola
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QC Association Summary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
GC Semi VOA (Continued)
Analysis Batch: 590448 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid MA-EPH 589859400-224585-3 MSD B8-3-5 Total/NA
Analysis Batch: 590450
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid MA-EPH 589859400-224585-1 B6-3-5 Total/NA
Solid MA-EPH 589859400-224585-2 B7-3-5 Total/NA
Solid MA-EPH 589859400-224585-3 B8-3-5 Total/NA
Solid MA-EPH 589859400-224585-4 B9-3-5 Total/NA
Solid MA-EPH 589859MB 400-589859/1-A Method Blank Total/NA
Solid MA-EPH 589859LCS 400-589859/2-A Lab Control Sample Total/NA
Solid MA-EPH 589859LCSD 400-589859/10-A Lab Control Sample Dup Total/NA
Solid MA-EPH 589859400-224585-3 MS B8-3-5 Total/NA
Solid MA-EPH 589859400-224585-3 MSD B8-3-5 Total/NA
Analysis Batch: 590583
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid MA-EPH 589859400-224585-2 B7-3-5 Total/NA
Solid MA-EPH 589859400-224585-3 B8-3-5 Total/NA
General Chemistry
Analysis Batch: 589250
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Solid Moisture400-224585-1 B6-3-5 Total/NA
Solid Moisture400-224585-2 B7-3-5 Total/NA
Solid Moisture400-224585-3 B8-3-5 Total/NA
Solid Moisture400-224585-4 B9-3-5 Total/NA
Eurofins Pensacola
Page 26 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS
Client Sample ID: Method BlankLab Sample ID: MB 400-589480/3-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
RL MDL
1,1,1,2-Tetrachloroethane <0.0011 0.0050 0.0011 mg/Kg 08/19/22 09:41 08/19/22 12:37 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.0011 0.00110.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1,1-Trichloroethane
<0.00082 0.000820.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1,2,2-Tetrachloroethane
<0.00078 0.000780.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1,2-Trichloroethane
<0.00083 0.000830.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1-Dichloroethane
<0.00085 0.000850.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1-Dichloroethene
<0.00083 0.000830.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,1-Dichloropropene
<0.0011 0.00110.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2,3-Trichlorobenzene
<0.00080 0.000800.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2,3-Trichloropropane
<0.00092 0.000920.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2,4-Trichlorobenzene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2,4-Trimethylbenzene
<0.0033 0.00330.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2-Dibromo-3-Chloropropane
<0.00071 0.000710.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2-Dichlorobenzene
<0.00082 0.000820.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2-Dichloroethane
<0.00076 0.000760.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,2-Dichloropropane
<0.00083 0.000830.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,3,5-Trimethylbenzene
<0.00095 0.000950.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,3-Dichlorobenzene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,3-Dichloropropane
<0.00086 0.000860.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 11,4-Dichlorobenzene
<0.0011 0.00110.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 12,2-Dichloropropane
<0.00081 0.000810.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 12-Chlorotoluene
<0.0050 0.00500.025 mg/Kg 08/19/22 09:41 08/19/22 12:37 12-Hexanone
<0.00098 0.000980.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 14-Chlorotoluene
<0.012 0.0120.025 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Acetone
<0.00067 0.000670.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Benzene
<0.0013 0.00130.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Bromobenzene
<0.0013 0.00130.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Bromoform
<0.0025 0.00250.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Bromomethane
<0.00066 0.000660.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Carbon disulfide
<0.0017 0.00170.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Carbon tetrachloride
<0.00052 0.000520.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Chlorobenzene
<0.00081 0.000810.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Bromochloromethane
<0.0012 0.00120.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Dibromochloromethane
<0.0012 0.00120.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Chloroethane
<0.0050 0.00500.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Chloroform
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Chloromethane
<0.00076 0.000760.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1cis-1,2-Dichloroethene
<0.0012 0.00120.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1cis-1,3-Dichloropropene
<0.00083 0.000830.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Dibromomethane
<0.00092 0.000920.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Bromodichloromethane
<0.0013 0.00130.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Dichlorodifluoromethane
<0.00061 0.000610.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Ethylbenzene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Ethylene Dibromide
<0.0025 0.00250.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Hexachlorobutadiene
<0.0034 0.00340.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Iodomethane
<0.00055 0.000550.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Isopropyl ether
<0.00068 0.000680.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Isopropylbenzene
<0.0060 0.00600.025 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Methyl Ethyl Ketone
Eurofins Pensacola
Page 27 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-589480/3-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
RL MDL
methyl isobutyl ketone <0.0050 0.025 0.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Methyl tert-butyl ether
<0.010 0.0100.015 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Methylene Chloride
<0.00096 0.000960.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1n-Butylbenzene
<0.00090 0.000900.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1N-Propylbenzene
<0.00095 0.000950.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1sec-Butylbenzene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Styrene
<0.0011 0.00110.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1tert-Butylbenzene
<0.0030 0.00300.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Tetrachloroethene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Toluene
<0.00096 0.000960.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1trans-1,2-Dichloroethene
<0.0011 0.00110.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1trans-1,3-Dichloropropene
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Trichloroethene
<0.00086 0.000860.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Trichlorofluoromethane
<0.0019 0.00190.025 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Vinyl acetate
<0.00080 0.000800.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Vinyl chloride
<0.0019 0.00190.010 mg/Kg 08/19/22 09:41 08/19/22 12:37 1Xylenes, Total
<0.0010 0.00100.0050 mg/Kg 08/19/22 09:41 08/19/22 12:37 1p-Cymene
4-Bromofluorobenzene 109 67-130 08/19/22 12:37 1
MB MB
Surrogate
08/19/22 09:41
Dil FacPreparedAnalyzedQualifierLimits%Recovery
104 08/19/22 09:41 08/19/22 12:37 1Dibromofluoromethane77-127
101 08/19/22 09:41 08/19/22 12:37 1Toluene-d8 (Surr)76-127
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589480/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
1,1,1,2-Tetrachloroethane 0.0500 0.0529 mg/Kg 106 65 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
1,1,1-Trichloroethane 0.0500 0.0504 mg/Kg 101 63 -130
1,1,2,2-Tetrachloroethane 0.0500 0.0539 mg/Kg 108 60 -131
1,1,2-Trichloroethane 0.0500 0.0508 mg/Kg 102 65 -130
1,1-Dichloroethane 0.0500 0.0543 mg/Kg 109 59 -130
1,1-Dichloroethene 0.0500 0.0533 mg/Kg 107 55 -137
1,1-Dichloropropene 0.0500 0.0507 mg/Kg 101 65 -130
1,2,3-Trichlorobenzene 0.0500 0.0461 mg/Kg 92 58 -135
1,2,3-Trichloropropane 0.0500 0.0498 mg/Kg 100 60 -130
1,2,4-Trichlorobenzene 0.0500 0.0463 mg/Kg 93 56 -138
1,2,4-Trimethylbenzene 0.0500 0.0493 mg/Kg 99 66 -130
1,2-Dibromo-3-Chloropropane 0.0500 0.0579 mg/Kg 116 49 -130
1,2-Dichlorobenzene 0.0500 0.0491 mg/Kg 98 64 -130
1,2-Dichloroethane 0.0500 0.0490 mg/Kg 98 62 -130
1,2-Dichloropropane 0.0500 0.0528 mg/Kg 106 64 -130
1,3,5-Trimethylbenzene 0.0500 0.0495 mg/Kg 99 67 -130
1,3-Dichlorobenzene 0.0500 0.0483 mg/Kg 97 66 -130
1,3-Dichloropropane 0.0500 0.0505 mg/Kg 101 67 -130
1,4-Dichlorobenzene 0.0500 0.0495 mg/Kg 99 65 -130
Eurofins Pensacola
Page 28 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589480/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
2,2-Dichloropropane 0.0500 0.0568 mg/Kg 114 51 -132
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
2-Chlorotoluene 0.0500 0.0509 mg/Kg 102 67 -130
2-Hexanone 0.200 0.215 mg/Kg 107 57 -131
4-Chlorotoluene 0.0500 0.0512 mg/Kg 102 66 -130
Acetone 0.200 0.246 mg/Kg 123 48 -160
Benzene 0.0500 0.0519 mg/Kg 104 65 -130
Bromobenzene 0.0500 0.0458 mg/Kg 92 65 -130
Bromoform 0.0500 0.0597 mg/Kg 119 52 -136
Bromomethane 0.0500 0.0590 mg/Kg 118 12 -160
Carbon disulfide 0.0500 0.0590 mg/Kg 118 46 -141
Carbon tetrachloride 0.0500 0.0568 mg/Kg 114 60 -130
Chlorobenzene 0.0500 0.0489 mg/Kg 98 70 -130
Bromochloromethane 0.0500 0.0501 mg/Kg 100 65 -130
Dibromochloromethane 0.0500 0.0543 mg/Kg 109 58 -132
Chloroethane 0.0500 0.0507 mg/Kg 101 55 -134
Chloroform 0.0500 0.0492 mg/Kg 98 62 -130
Chloromethane 0.0500 0.0702 *+mg/Kg 140 49 -136
cis-1,2-Dichloroethene 0.0500 0.0535 mg/Kg 107 53 -135
cis-1,3-Dichloropropene 0.0500 0.0490 mg/Kg 98 61 -130
Dibromomethane 0.0500 0.0487 mg/Kg 97 65 -130
Bromodichloromethane 0.0500 0.0524 mg/Kg 105 61 -130
Dichlorodifluoromethane 0.0500 0.0556 mg/Kg 111 34 -143
Ethylbenzene 0.0500 0.0474 mg/Kg 95 70 -130
Ethylene Dibromide 0.0500 0.0503 mg/Kg 101 67 -130
Hexachlorobutadiene 0.0500 0.0498 mg/Kg 100 62 -133
Iodomethane 0.0500 0.0376 mg/Kg 75 12 -160
Isopropyl ether 0.0500 0.0509 mg/Kg 102 62 -130
Isopropylbenzene 0.0500 0.0451 mg/Kg 90 70 -130
Methyl Ethyl Ketone 0.200 0.224 mg/Kg 112 55 -130
methyl isobutyl ketone 0.200 0.219 mg/Kg 109 58 -130
Methyl tert-butyl ether 0.0500 0.0483 mg/Kg 97 63 -130
Methylene Chloride 0.0500 0.0548 mg/Kg 110 57 -132
n-Butylbenzene 0.0500 0.0543 mg/Kg 109 66 -130
N-Propylbenzene 0.0500 0.0502 mg/Kg 100 67 -130
sec-Butylbenzene 0.0500 0.0501 mg/Kg 100 67 -130
Styrene 0.0500 0.0454 mg/Kg 91 68 -130
tert-Butylbenzene 0.0500 0.0496 mg/Kg 99 67 -130
Tetrachloroethene 0.0500 0.0470 mg/Kg 94 67 -130
Toluene 0.0500 0.0497 mg/Kg 99 70 -130
trans-1,2-Dichloroethene 0.0500 0.0520 mg/Kg 104 58 -134
trans-1,3-Dichloropropene 0.0500 0.0516 mg/Kg 103 60 -130
Trichloroethene 0.0500 0.0485 mg/Kg 97 65 -130
Trichlorofluoromethane 0.0500 0.0482 mg/Kg 96 61 -136
Vinyl acetate 0.100 0.117 mg/Kg 117 24 -160
Vinyl chloride 0.0500 0.0533 mg/Kg 107 52 -132
Xylenes, Total 0.100 0.0942 mg/Kg 94 70 -130
p-Cymene 0.0500 0.0488 mg/Kg 98 68 -130
Eurofins Pensacola
Page 29 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589480/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
4-Bromofluorobenzene 67 -130
Surrogate
95
LCS LCS
Qualifier Limits%Recovery
102Dibromofluoromethane 77 -127
98Toluene-d8 (Surr)76 -127
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589480/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
1,1,1,2-Tetrachloroethane 0.0500 0.0499 mg/Kg 100 65 -130 6 30
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
1,1,1-Trichloroethane 0.0500 0.0483 mg/Kg 97 63 -130 4 30
1,1,2,2-Tetrachloroethane 0.0500 0.0584 mg/Kg 117 60 -131 8 30
1,1,2-Trichloroethane 0.0500 0.0499 mg/Kg 100 65 -130 2 30
1,1-Dichloroethane 0.0500 0.0500 mg/Kg 100 59 -130 8 30
1,1-Dichloroethene 0.0500 0.0511 mg/Kg 102 55 -137 4 30
1,1-Dichloropropene 0.0500 0.0477 mg/Kg 95 65 -130 6 30
1,2,3-Trichlorobenzene 0.0500 0.0453 mg/Kg 91 58 -135 2 30
1,2,3-Trichloropropane 0.0500 0.0527 mg/Kg 105 60 -130 6 30
1,2,4-Trichlorobenzene 0.0500 0.0453 mg/Kg 91 56 -138 2 30
1,2,4-Trimethylbenzene 0.0500 0.0477 mg/Kg 95 66 -130 3 30
1,2-Dibromo-3-Chloropropane 0.0500 0.0613 mg/Kg 123 49 -130 6 30
1,2-Dichlorobenzene 0.0500 0.0492 mg/Kg 98 64 -130 0 30
1,2-Dichloroethane 0.0500 0.0469 mg/Kg 94 62 -130 4 30
1,2-Dichloropropane 0.0500 0.0495 mg/Kg 99 64 -130 6 30
1,3,5-Trimethylbenzene 0.0500 0.0479 mg/Kg 96 67 -130 3 30
1,3-Dichlorobenzene 0.0500 0.0481 mg/Kg 96 66 -130 0 30
1,3-Dichloropropane 0.0500 0.0496 mg/Kg 99 67 -130 2 30
1,4-Dichlorobenzene 0.0500 0.0480 mg/Kg 96 65 -130 3 30
2,2-Dichloropropane 0.0500 0.0540 mg/Kg 108 51 -132 5 30
2-Chlorotoluene 0.0500 0.0503 mg/Kg 101 67 -130 1 30
2-Hexanone 0.200 0.232 mg/Kg 116 57 -131 8 30
4-Chlorotoluene 0.0500 0.0493 mg/Kg 99 66 -130 4 30
Acetone 0.200 0.253 mg/Kg 126 48 -160 3 30
Benzene 0.0500 0.0501 mg/Kg 100 65 -130 4 30
Bromobenzene 0.0500 0.0449 mg/Kg 90 65 -130 2 30
Bromoform 0.0500 0.0618 mg/Kg 124 52 -136 3 30
Bromomethane 0.0500 0.0594 mg/Kg 119 12 -160 1 30
Carbon disulfide 0.0500 0.0565 mg/Kg 113 46 -141 4 30
Carbon tetrachloride 0.0500 0.0532 mg/Kg 106 60 -130 7 30
Chlorobenzene 0.0500 0.0475 mg/Kg 95 70 -130 3 30
Bromochloromethane 0.0500 0.0456 mg/Kg 91 65 -130 9 30
Dibromochloromethane 0.0500 0.0516 mg/Kg 103 58 -132 5 30
Chloroethane 0.0500 0.0483 mg/Kg 97 55 -134 5 30
Chloroform 0.0500 0.0467 mg/Kg 93 62 -130 5 30
Chloromethane 0.0500 0.0655 mg/Kg 131 49 -136 7 30
cis-1,2-Dichloroethene 0.0500 0.0509 mg/Kg 102 53 -135 5 30
cis-1,3-Dichloropropene 0.0500 0.0471 mg/Kg 94 61 -130 4 30
Dibromomethane 0.0500 0.0482 mg/Kg 96 65 -130 1 30
Eurofins Pensacola
Page 30 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589480/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589407 Prep Batch: 589480
Bromodichloromethane 0.0500 0.0506 mg/Kg 101 61 -130 4 30
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Dichlorodifluoromethane 0.0500 0.0533 mg/Kg 107 34 -143 4 30
Ethylbenzene 0.0500 0.0457 mg/Kg 91 70 -130 4 30
Ethylene Dibromide 0.0500 0.0503 mg/Kg 101 67 -130 0 30
Hexachlorobutadiene 0.0500 0.0489 mg/Kg 98 62 -133 2 30
Iodomethane 0.0500 0.0351 mg/Kg 70 12 -160 7 30
Isopropyl ether 0.0500 0.0468 mg/Kg 94 62 -130 8 30
Isopropylbenzene 0.0500 0.0433 mg/Kg 87 70 -130 4 30
Methyl Ethyl Ketone 0.200 0.238 mg/Kg 119 55 -130 6 30
methyl isobutyl ketone 0.200 0.229 mg/Kg 115 58 -130 5 30
Methyl tert-butyl ether 0.0500 0.0474 mg/Kg 95 63 -130 2 30
Methylene Chloride 0.0500 0.0515 mg/Kg 103 57 -132 6 30
n-Butylbenzene 0.0500 0.0522 mg/Kg 104 66 -130 4 30
N-Propylbenzene 0.0500 0.0483 mg/Kg 97 67 -130 4 30
sec-Butylbenzene 0.0500 0.0488 mg/Kg 98 67 -130 3 30
Styrene 0.0500 0.0430 mg/Kg 86 68 -130 5 30
tert-Butylbenzene 0.0500 0.0495 mg/Kg 99 67 -130 0 30
Tetrachloroethene 0.0500 0.0444 mg/Kg 89 67 -130 6 30
Toluene 0.0500 0.0479 mg/Kg 96 70 -130 4 30
trans-1,2-Dichloroethene 0.0500 0.0511 mg/Kg 102 58 -134 2 30
trans-1,3-Dichloropropene 0.0500 0.0497 mg/Kg 99 60 -130 4 30
Trichloroethene 0.0500 0.0474 mg/Kg 95 65 -130 2 30
Trichlorofluoromethane 0.0500 0.0457 mg/Kg 91 61 -136 5 30
Vinyl acetate 0.100 0.115 mg/Kg 115 24 -160 1 30
Vinyl chloride 0.0500 0.0519 mg/Kg 104 52 -132 3 30
Xylenes, Total 0.100 0.0898 mg/Kg 90 70 -130 5 30
p-Cymene 0.0500 0.0475 mg/Kg 95 68 -130 3 30
4-Bromofluorobenzene 67 -130
Surrogate
99
LCSD LCSD
Qualifier Limits%Recovery
100Dibromofluoromethane 77 -127
98Toluene-d8 (Surr)76 -127
Client Sample ID: Method BlankLab Sample ID: MB 400-589588/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589568 Prep Batch: 589588
RL MDL
1,1,1,2-Tetrachloroethane <0.0011 0.0050 0.0011 mg/Kg 08/20/22 13:06 08/20/22 15:35 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.0011 0.00110.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1,1-Trichloroethane
<0.00082 0.000820.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1,2,2-Tetrachloroethane
<0.00078 0.000780.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1,2-Trichloroethane
<0.00083 0.000830.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1-Dichloroethane
<0.00085 0.000850.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1-Dichloroethene
<0.00083 0.000830.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,1-Dichloropropene
<0.0011 0.00110.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2,3-Trichlorobenzene
<0.00080 0.000800.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2,3-Trichloropropane
<0.00092 0.000920.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2,4-Trichlorobenzene
Eurofins Pensacola
Page 31 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-589588/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589568 Prep Batch: 589588
RL MDL
1,2,4-Trimethylbenzene <0.0010 0.0050 0.0010 mg/Kg 08/20/22 13:06 08/20/22 15:35 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.0033 0.00330.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2-Dibromo-3-Chloropropane
<0.00071 0.000710.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2-Dichlorobenzene
<0.00082 0.000820.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2-Dichloroethane
<0.00076 0.000760.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,2-Dichloropropane
<0.00083 0.000830.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,3,5-Trimethylbenzene
<0.00095 0.000950.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,3-Dichlorobenzene
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,3-Dichloropropane
<0.00086 0.000860.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 11,4-Dichlorobenzene
<0.0011 0.00110.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 12,2-Dichloropropane
<0.00081 0.000810.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 12-Chlorotoluene
<0.0050 0.00500.025 mg/Kg 08/20/22 13:06 08/20/22 15:35 12-Hexanone
<0.00098 0.000980.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 14-Chlorotoluene
<0.012 0.0120.025 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Acetone
<0.00067 0.000670.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Benzene
<0.0013 0.00130.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Bromobenzene
<0.0013 0.00130.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Bromoform
<0.0025 0.00250.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Bromomethane
<0.00066 0.000660.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Carbon disulfide
<0.0017 0.00170.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Carbon tetrachloride
<0.00052 0.000520.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Chlorobenzene
<0.00081 0.000810.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Bromochloromethane
<0.0012 0.00120.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Dibromochloromethane
<0.0012 0.00120.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Chloroethane
<0.0050 0.00500.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Chloroform
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Chloromethane
<0.00076 0.000760.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1cis-1,2-Dichloroethene
<0.0012 0.00120.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1cis-1,3-Dichloropropene
<0.00083 0.000830.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Dibromomethane
<0.00092 0.000920.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Bromodichloromethane
<0.0013 0.00130.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Dichlorodifluoromethane
<0.00061 0.000610.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Ethylbenzene
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Ethylene Dibromide
<0.0025 0.00250.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Hexachlorobutadiene
<0.0034 0.00340.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Iodomethane
<0.00055 0.000550.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Isopropyl ether
<0.00068 0.000680.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Isopropylbenzene
<0.0060 0.00600.025 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Methyl Ethyl Ketone
<0.0050 0.00500.025 mg/Kg 08/20/22 13:06 08/20/22 15:35 1methyl isobutyl ketone
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Methyl tert-butyl ether
<0.010 0.0100.015 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Methylene Chloride
<0.00096 0.000960.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1n-Butylbenzene
<0.00090 0.000900.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1N-Propylbenzene
<0.00095 0.000950.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1sec-Butylbenzene
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Styrene
<0.0011 0.00110.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1tert-Butylbenzene
<0.0030 0.00300.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Tetrachloroethene
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Toluene
<0.00096 0.000960.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1trans-1,2-Dichloroethene
Eurofins Pensacola
Page 32 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-589588/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589568 Prep Batch: 589588
RL MDL
trans-1,3-Dichloropropene <0.0011 0.0050 0.0011 mg/Kg 08/20/22 13:06 08/20/22 15:35 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Trichloroethene
<0.00086 0.000860.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Trichlorofluoromethane
<0.0019 0.00190.025 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Vinyl acetate
<0.00080 0.000800.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Vinyl chloride
<0.0019 0.00190.010 mg/Kg 08/20/22 13:06 08/20/22 15:35 1Xylenes, Total
<0.0010 0.00100.0050 mg/Kg 08/20/22 13:06 08/20/22 15:35 1p-Cymene
4-Bromofluorobenzene 103 67-130 08/20/22 15:35 1
MB MB
Surrogate
08/20/22 13:06
Dil FacPreparedAnalyzedQualifierLimits%Recovery
90 08/20/22 13:06 08/20/22 15:35 1Dibromofluoromethane77-127
103 08/20/22 13:06 08/20/22 15:35 1Toluene-d8 (Surr)76-127
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589588/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589568 Prep Batch: 589588
1,1,1,2-Tetrachloroethane 0.0500 0.0398 mg/Kg 80 65 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
1,1,1-Trichloroethane 0.0500 0.0409 mg/Kg 82 63 -130
1,1,2,2-Tetrachloroethane 0.0500 0.0489 mg/Kg 98 60 -131
1,1,2-Trichloroethane 0.0500 0.0472 mg/Kg 94 65 -130
1,1-Dichloroethane 0.0500 0.0467 mg/Kg 93 59 -130
1,1-Dichloroethene 0.0500 0.0404 mg/Kg 81 55 -137
1,1-Dichloropropene 0.0500 0.0477 mg/Kg 95 65 -130
1,2,3-Trichlorobenzene 0.0500 0.0518 mg/Kg 104 58 -135
1,2,3-Trichloropropane 0.0500 0.0412 mg/Kg 82 60 -130
1,2,4-Trichlorobenzene 0.0500 0.0521 mg/Kg 104 56 -138
1,2,4-Trimethylbenzene 0.0500 0.0496 mg/Kg 99 66 -130
1,2-Dibromo-3-Chloropropane 0.0500 0.0397 mg/Kg 79 49 -130
1,2-Dichlorobenzene 0.0500 0.0449 mg/Kg 90 64 -130
1,2-Dichloroethane 0.0500 0.0427 mg/Kg 85 62 -130
1,2-Dichloropropane 0.0500 0.0478 mg/Kg 96 64 -130
1,3,5-Trimethylbenzene 0.0500 0.0511 mg/Kg 102 67 -130
1,3-Dichlorobenzene 0.0500 0.0472 mg/Kg 94 66 -130
1,3-Dichloropropane 0.0500 0.0467 mg/Kg 93 67 -130
1,4-Dichlorobenzene 0.0500 0.0458 mg/Kg 92 65 -130
2,2-Dichloropropane 0.0500 0.0312 mg/Kg 62 51 -132
2-Chlorotoluene 0.0500 0.0504 mg/Kg 101 67 -130
2-Hexanone 0.200 0.179 mg/Kg 90 57 -131
4-Chlorotoluene 0.0500 0.0484 mg/Kg 97 66 -130
Acetone 0.200 0.196 mg/Kg 98 48 -160
Benzene 0.0500 0.0478 mg/Kg 96 65 -130
Bromobenzene 0.0500 0.0444 mg/Kg 89 65 -130
Bromoform 0.0500 0.0400 mg/Kg 80 52 -136
Bromomethane 0.0500 0.0424 mg/Kg 85 12 -160
Carbon disulfide 0.0500 0.0471 mg/Kg 94 46 -141
Carbon tetrachloride 0.0500 0.0386 mg/Kg 77 60 -130
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589588/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589568 Prep Batch: 589588
Chlorobenzene 0.0500 0.0446 mg/Kg 89 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
Bromochloromethane 0.0500 0.0399 mg/Kg 80 65 -130
Dibromochloromethane 0.0500 0.0389 mg/Kg 78 58 -132
Chloroethane 0.0500 0.0437 mg/Kg 87 55 -134
Chloroform 0.0500 0.0441 mg/Kg 88 62 -130
Chloromethane 0.0500 0.0501 mg/Kg 100 49 -136
cis-1,2-Dichloroethene 0.0500 0.0453 mg/Kg 91 53 -135
cis-1,3-Dichloropropene 0.0500 0.0445 mg/Kg 89 61 -130
Dibromomethane 0.0500 0.0432 mg/Kg 86 65 -130
Bromodichloromethane 0.0500 0.0413 mg/Kg 83 61 -130
Dichlorodifluoromethane 0.0500 0.0425 mg/Kg 85 34 -143
Ethylbenzene 0.0500 0.0495 mg/Kg 99 70 -130
Ethylene Dibromide 0.0500 0.0426 mg/Kg 85 67 -130
Hexachlorobutadiene 0.0500 0.0483 mg/Kg 97 62 -133
Iodomethane 0.0500 0.0350 mg/Kg 70 12 -160
Isopropyl ether 0.0500 0.0474 mg/Kg 95 62 -130
Isopropylbenzene 0.0500 0.0479 mg/Kg 96 70 -130
Methyl Ethyl Ketone 0.200 0.168 mg/Kg 84 55 -130
methyl isobutyl ketone 0.200 0.175 mg/Kg 88 58 -130
Methyl tert-butyl ether 0.0500 0.0368 mg/Kg 74 63 -130
Methylene Chloride 0.0500 0.0434 mg/Kg 87 57 -132
n-Butylbenzene 0.0500 0.0617 mg/Kg 123 66 -130
N-Propylbenzene 0.0500 0.0497 mg/Kg 99 67 -130
sec-Butylbenzene 0.0500 0.0519 mg/Kg 104 67 -130
Styrene 0.0500 0.0458 mg/Kg 92 68 -130
tert-Butylbenzene 0.0500 0.0572 mg/Kg 114 67 -130
Tetrachloroethene 0.0500 0.0460 mg/Kg 92 67 -130
Toluene 0.0500 0.0466 mg/Kg 93 70 -130
trans-1,2-Dichloroethene 0.0500 0.0441 mg/Kg 88 58 -134
trans-1,3-Dichloropropene 0.0500 0.0402 mg/Kg 80 60 -130
Trichloroethene 0.0500 0.0421 mg/Kg 84 65 -130
Trichlorofluoromethane 0.0500 0.0350 mg/Kg 70 61 -136
Vinyl acetate 0.100 0.0739 mg/Kg 74 24 -160
Vinyl chloride 0.0500 0.0484 mg/Kg 97 52 -132
Xylenes, Total 0.100 0.0937 mg/Kg 94 70 -130
p-Cymene 0.0500 0.0533 mg/Kg 107 68 -130
4-Bromofluorobenzene 67 -130
Surrogate
101
LCS LCS
Qualifier Limits%Recovery
92Dibromofluoromethane 77 -127
101Toluene-d8 (Surr)76 -127
Eurofins Pensacola
Page 34 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS)
Client Sample ID: Method BlankLab Sample ID: MB 400-589191/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589337 Prep Batch: 589191
RL MDL
1,1'-Biphenyl <0.033 0.33 0.033 mg/Kg 08/17/22 15:26 08/18/22 18:29 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,2,4,5-Tetrachlorobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,2,4-Trichlorobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,2-Dichlorobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,3-Dichlorobenzene
<0.071 0.0710.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,3-Dinitrobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,4-Dichlorobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11,4-Dioxane
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 11-Methylnaphthalene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,2'-oxybis(1-chloropropane)
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,3,4,6-Tetrachlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4,5-Trichlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4,6-Trichlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4-Dichlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4-Dimethylphenol
<0.29 0.290.99 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4-Dinitrophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,4-Dinitrotoluene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12,6-Dinitrotoluene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Chloronaphthalene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Chlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Methylnaphthalene
<0.080 0.0800.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Methylphenol
<0.070 0.0700.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Nitroaniline
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 12-Nitrophenol
<0.033 0.0330.66 mg/Kg 08/17/22 15:26 08/18/22 18:29 13 & 4 Methylphenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 13,3'-Dichlorobenzidine
<0.078 0.0780.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 13-Nitroaniline
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14,6-Dinitro-2-methylphenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Bromophenyl phenyl ether
<0.081 0.0810.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Chloro-3-methylphenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Chloroaniline
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Chlorophenyl phenyl ether
<0.11 0.110.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Nitroaniline
<0.11 0.110.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 14-Nitrophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Acenaphthene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Acenaphthylene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Acetophenone
<0.043 0.0430.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Aniline
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Anthracene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Atrazine
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Azobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzaldehyde
<0.099 0.0990.99 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzidine
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzo[a]anthracene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzo[a]pyrene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzo[b]fluoranthene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzo[g,h,i]perylene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzo[k]fluoranthene
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-589191/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589337 Prep Batch: 589191
RL MDL
Benzoic acid 0.466 J 0.99 0.35 mg/Kg 08/17/22 15:26 08/18/22 18:29 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.11 0.110.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Benzyl alcohol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Bis(2-chloroethoxy)methane
<0.092 0.0920.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Bis(2-chloroethyl)ether
<0.081 0.0810.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Bis(2-ethylhexyl) phthalate
<0.071 0.0710.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Butyl benzyl phthalate
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Caprolactam
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Carbazole
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Chrysene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Dibenz(a,h)anthracene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Dibenzofuran
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Diethyl phthalate
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Dimethyl phthalate
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Di-n-butyl phthalate
<0.12 0.120.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Di-n-octyl phthalate
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Fluoranthene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Fluorene
<0.10 0.100.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Hexachlorobenzene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Hexachlorobutadiene
<0.066 0.0660.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Hexachlorocyclopentadiene
<0.031 0.0310.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Hexachloroethane
<0.068 0.0680.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Hexadecane
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Indeno[1,2,3-cd]pyrene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Isophorone
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Naphthalene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1n-Decane
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Nitrobenzene
<0.066 0.0660.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1N-Nitrosodimethylamine
<0.038 0.0380.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1N-Nitrosodi-n-propylamine
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1N-Nitrosodiphenylamine
<0.074 0.0740.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1n-Octadecane
<0.066 0.0660.66 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Pentachlorophenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Phenanthrene
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Phenol
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Pyrene
<0.15 0.150.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Pyridine
<0.033 0.0330.33 mg/Kg 08/17/22 15:26 08/18/22 18:29 1Sulfolane
2,4,6-Tribromophenol (Surr)68 10-150 08/18/22 18:29 1
MB MB
Surrogate
08/17/22 15:26
Dil FacPreparedAnalyzedQualifierLimits%Recovery
74 08/17/22 15:26 08/18/22 18:29 12-Fluorobiphenyl 27-127
77 08/17/22 15:26 08/18/22 18:29 12-Fluorophenol (Surr)25-128
70 08/17/22 15:26 08/18/22 18:29 1Nitrobenzene-d5 (Surr)15-136
79 08/17/22 15:26 08/18/22 18:29 1Phenol-d5 (Surr)29-130
95 08/17/22 15:26 08/18/22 18:29 1Terphenyl-d14 (Surr)24-146
Eurofins Pensacola
Page 36 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589191/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589337 Prep Batch: 589191
1,1'-Biphenyl 2.00 1.53 mg/Kg 76 56 -120
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
1,2,4,5-Tetrachlorobenzene 2.00 1.50 mg/Kg 75 49 -120
1,2,4-Trichlorobenzene 2.00 1.42 mg/Kg 71 48 -120
1,2-Dichlorobenzene 2.00 1.36 mg/Kg 68 49 -120
1,3-Dichlorobenzene 2.00 1.34 mg/Kg 67 48 -120
1,3-Dinitrobenzene 2.00 1.87 mg/Kg 94 56 -131
1,4-Dichlorobenzene 2.00 1.28 mg/Kg 64 49 -120
1,4-Dioxane 2.00 0.766 mg/Kg 38 25 -120
1-Methylnaphthalene 2.00 1.60 mg/Kg 80 40 -120
2,2'-oxybis(1-chloropropane)2.00 1.30 mg/Kg 65 34 -120
2,3,4,6-Tetrachlorophenol 2.00 1.94 mg/Kg 97 50 -143
2,4,5-Trichlorophenol 2.00 1.77 mg/Kg 89 53 -133
2,4,6-Trichlorophenol 2.00 1.76 mg/Kg 88 51 -125
2,4-Dichlorophenol 2.00 1.78 mg/Kg 89 56 -120
2,4-Dimethylphenol 2.00 1.68 mg/Kg 84 54 -120
2,4-Dinitrophenol 4.00 2.65 mg/Kg 66 10 -138
2,4-Dinitrotoluene 2.00 1.89 mg/Kg 94 59 -133
2,6-Dinitrotoluene 2.00 1.89 mg/Kg 94 57 -123
2-Chloronaphthalene 2.00 1.54 mg/Kg 77 55 -120
2-Chlorophenol 2.00 1.52 mg/Kg 76 52 -120
2-Methylnaphthalene 2.00 1.58 mg/Kg 79 40 -120
2-Methylphenol 2.00 1.63 mg/Kg 81 51 -123
2-Nitroaniline 2.00 1.80 mg/Kg 90 55 -129
2-Nitrophenol 2.00 1.66 mg/Kg 83 53 -120
3 & 4 Methylphenol 2.00 1.63 mg/Kg 82 47 -123
3,3'-Dichlorobenzidine 2.67 2.73 mg/Kg 102 42 -120
3-Nitroaniline 2.00 1.61 mg/Kg 81 45 -120
4,6-Dinitro-2-methylphenol 4.00 3.16 mg/Kg 79 35 -135
4-Bromophenyl phenyl ether 2.00 1.80 mg/Kg 90 51 -120
4-Chloro-3-methylphenol 2.00 1.94 mg/Kg 97 57 -124
4-Chloroaniline 2.00 1.39 mg/Kg 69 34 -120
4-Chlorophenyl phenyl ether 2.00 1.71 mg/Kg 86 56 -120
4-Nitroaniline 2.00 1.72 mg/Kg 86 52 -126
4-Nitrophenol 4.00 3.65 mg/Kg 91 38 -133
Acenaphthene 2.00 1.64 mg/Kg 82 50 -120
Acenaphthylene 2.00 1.70 mg/Kg 85 50 -120
Acetophenone 2.00 1.40 mg/Kg 70 52 -120
Aniline 2.00 1.50 mg/Kg 75 36 -120
Anthracene 2.00 1.76 mg/Kg 88 52 -120
Atrazine 2.00 1.83 mg/Kg 92 44 -120
Azobenzene 2.00 1.61 mg/Kg 81 50 -120
Benzaldehyde 2.00 1.23 mg/Kg 61 20 -120
Benzidine 9.31 8.03 mg/Kg 86 10 -120
Benzo[a]anthracene 2.00 1.74 mg/Kg 87 55 -120
Benzo[a]pyrene 2.00 1.75 mg/Kg 87 54 -120
Benzo[b]fluoranthene 2.00 1.64 mg/Kg 82 55 -120
Benzo[g,h,i]perylene 2.00 1.86 mg/Kg 93 45 -120
Benzo[k]fluoranthene 2.00 1.61 mg/Kg 80 52 -120
Eurofins Pensacola
Page 37 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589191/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589337 Prep Batch: 589191
Benzoic acid 8.56 4.53 mg/Kg 53 10 -139
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
Benzyl alcohol 2.00 1.49 mg/Kg 74 10 -127
Bis(2-chloroethoxy)methane 2.00 1.39 mg/Kg 70 52 -120
Bis(2-chloroethyl)ether 2.00 1.20 mg/Kg 60 28 -120
Bis(2-ethylhexyl) phthalate 2.00 1.80 mg/Kg 90 58 -158
Butyl benzyl phthalate 2.00 1.80 mg/Kg 90 58 -126
Caprolactam 2.00 1.66 mg/Kg 83 53 -127
Carbazole 2.00 1.81 mg/Kg 91 61 -132
Chrysene 2.00 1.72 mg/Kg 86 54 -120
Dibenz(a,h)anthracene 2.00 1.98 mg/Kg 99 49 -120
Dibenzofuran 2.00 1.66 mg/Kg 83 58 -120
Diethyl phthalate 2.00 1.78 mg/Kg 89 56 -128
Dimethyl phthalate 2.00 1.77 mg/Kg 89 58 -120
Di-n-butyl phthalate 2.00 1.89 mg/Kg 95 64 -122
Di-n-octyl phthalate 2.00 1.87 mg/Kg 94 57 -137
Fluoranthene 2.00 1.79 mg/Kg 90 49 -120
Fluorene 2.00 1.73 mg/Kg 86 47 -120
Hexachlorobenzene 2.00 1.94 mg/Kg 97 49 -127
Hexachlorobutadiene 2.00 1.40 mg/Kg 70 43 -120
Hexachlorocyclopentadiene 2.00 1.54 mg/Kg 77 10 -140
Hexachloroethane 2.00 1.35 mg/Kg 68 45 -120
Hexadecane 2.00 1.50 mg/Kg 75 37 -120
Indeno[1,2,3-cd]pyrene 2.00 1.86 mg/Kg 93 47 -120
Isophorone 2.00 1.51 mg/Kg 76 50 -120
Naphthalene 2.00 1.47 mg/Kg 73 41 -120
n-Decane 2.00 1.13 mg/Kg 56 26 -120
Nitrobenzene 2.00 1.36 mg/Kg 68 50 -120
N-Nitrosodimethylamine 2.00 1.07 mg/Kg 54 35 -120
N-Nitrosodi-n-propylamine 2.00 1.49 mg/Kg 74 48 -120
N-Nitrosodiphenylamine 1.98 1.74 mg/Kg 88 54 -120
n-Octadecane 2.00 1.57 mg/Kg 79 31 -138
Pentachlorophenol 4.00 4.15 mg/Kg 104 32 -131
Phenanthrene 2.00 1.72 mg/Kg 86 50 -120
Phenol 2.00 1.50 mg/Kg 75 51 -120
Pyrene 2.00 1.73 mg/Kg 86 54 -120
Pyridine 4.00 1.89 mg/Kg 47 29 -120
Sulfolane 4.06 2.65 mg/Kg 65 38 -120
2,4,6-Tribromophenol (Surr)10 -150
Surrogate
111
LCS LCS
Qualifier Limits%Recovery
772-Fluorobiphenyl 27 -127
752-Fluorophenol (Surr)25 -128
77Nitrobenzene-d5 (Surr)15 -136
78Phenol-d5 (Surr)29 -130
82Terphenyl-d14 (Surr)24 -146
Eurofins Pensacola
Page 38 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: B9-3-5Lab Sample ID: 400-224585-4 MS
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589247 Prep Batch: 589191
1,1'-Biphenyl <0.040 2.44 1.80 mg/Kg 74 40 -140☼
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
1,2,4,5-Tetrachlorobenzene <0.040 F1 2.44 1.72 mg/Kg 71 40 -140☼
1,2,4-Trichlorobenzene <0.040 2.44 1.52 mg/Kg 62 40 -140☼
1,2-Dichlorobenzene <0.040 2.44 1.35 mg/Kg 55 40 -140☼
1,3-Dichlorobenzene <0.040 2.44 1.29 mg/Kg 53 40 -140☼
1,3-Dinitrobenzene <0.087 2.44 1.75 mg/Kg 72 40 -140☼
1,4-Dichlorobenzene <0.040 2.44 1.33 mg/Kg 54 40 -140☼
1,4-Dioxane <0.040 F1 2.44 0.730 F1 mg/Kg 30 40 -140☼
1-Methylnaphthalene <0.040 2.44 1.72 mg/Kg 70 40 -140☼
2,2'-oxybis(1-chloropropane)<0.040 2.44 1.43 mg/Kg 59 40 -140☼
2,3,4,6-Tetrachlorophenol <0.040 2.44 2.02 mg/Kg 83 40 -140☼
2,4,5-Trichlorophenol <0.040 2.44 1.85 mg/Kg 76 40 -140☼
2,4,6-Trichlorophenol <0.040 2.44 1.88 mg/Kg 77 40 -140☼
2,4-Dichlorophenol <0.040 2.44 1.79 mg/Kg 73 40 -140☼
2,4-Dimethylphenol <0.040 2.44 1.81 mg/Kg 74 40 -140☼
2,4-Dinitrophenol <0.35 4.88 2.15 mg/Kg 44 40 -140☼
2,4-Dinitrotoluene <0.040 2.44 1.88 mg/Kg 77 40 -140☼
2,6-Dinitrotoluene <0.040 2.44 1.83 mg/Kg 75 40 -140☼
2-Chloronaphthalene <0.040 2.44 1.73 mg/Kg 71 40 -140☼
2-Chlorophenol <0.040 2.44 1.55 mg/Kg 63 40 -140☼
2-Methylnaphthalene <0.040 2.44 1.72 mg/Kg 71 40 -140☼
2-Methylphenol <0.098 2.44 1.97 mg/Kg 81 40 -140☼
2-Nitroaniline <0.086 2.44 1.81 mg/Kg 74 40 -140☼
2-Nitrophenol <0.040 2.44 1.47 mg/Kg 60 40 -140☼
3 & 4 Methylphenol <0.040 2.44 1.86 mg/Kg 76 40 -140☼
3,3'-Dichlorobenzidine <0.040 3.26 1.97 mg/Kg 60 40 -140☼
3-Nitroaniline <0.095 2.44 2.09 mg/Kg 85 40 -140☼
4,6-Dinitro-2-methylphenol <0.040 4.88 2.59 mg/Kg 53 40 -140☼
4-Bromophenyl phenyl ether <0.040 2.44 1.93 mg/Kg 79 40 -140☼
4-Chloro-3-methylphenol <0.099 2.44 1.82 mg/Kg 75 40 -140☼
4-Chloroaniline <0.040 2.44 1.34 mg/Kg 55 40 -140☼
4-Chlorophenyl phenyl ether <0.040 2.44 2.00 mg/Kg 82 40 -140☼
4-Nitroaniline <0.14 2.44 1.84 mg/Kg 75 40 -140☼
4-Nitrophenol <0.13 4.88 3.58 mg/Kg 73 40 -140☼
Acenaphthene <0.040 2.44 1.98 mg/Kg 81 40 -140☼
Acenaphthylene <0.040 2.44 1.82 mg/Kg 75 40 -140☼
Acetophenone <0.040 2.44 1.67 mg/Kg 68 40 -140☼
Aniline <0.053 2.44 1.34 mg/Kg 55 40 -140☼
Anthracene <0.040 2.44 1.94 mg/Kg 80 40 -140☼
Atrazine <0.040 2.44 1.93 mg/Kg 79 40 -140☼
Azobenzene <0.040 2.44 1.85 mg/Kg 76 40 -140☼
Benzaldehyde <0.040 2.44 1.17 mg/Kg 48 40 -140☼
Benzidine <0.12 F1 F2 11.4 1.95 F1 mg/Kg 17 40 -140☼
Benzo[a]anthracene <0.040 2.44 1.85 mg/Kg 76 40 -140☼
Benzo[a]pyrene <0.040 2.44 1.87 mg/Kg 77 40 -140☼
Benzo[b]fluoranthene <0.040 2.44 1.94 mg/Kg 80 40 -140☼
Benzo[g,h,i]perylene <0.040 2.44 1.75 mg/Kg 72 40 -140☼
Benzo[k]fluoranthene <0.040 2.44 2.02 mg/Kg 83 40 -140☼
Eurofins Pensacola
Page 39 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: B9-3-5Lab Sample ID: 400-224585-4 MS
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589247 Prep Batch: 589191
Benzoic acid <0.43 10.4 6.98 mg/Kg 67 40 -140☼
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Benzyl alcohol <0.13 F1 2.44 0.748 F1 mg/Kg 31 40 -140☼
Bis(2-chloroethoxy)methane <0.040 2.44 1.64 mg/Kg 67 40 -140☼
Bis(2-chloroethyl)ether <0.11 F2 2.44 1.65 mg/Kg 68 40 -140☼
Bis(2-ethylhexyl) phthalate <0.099 2.44 2.04 mg/Kg 83 40 -140☼
Butyl benzyl phthalate <0.087 2.44 2.10 mg/Kg 86 40 -140☼
Caprolactam 0.044 J 2.44 1.57 mg/Kg 63 40 -140☼
Carbazole <0.040 2.44 2.47 mg/Kg 101 40 -140☼
Chrysene <0.040 2.44 1.90 mg/Kg 78 40 -140☼
Dibenz(a,h)anthracene <0.040 2.44 1.61 mg/Kg 66 40 -140☼
Dibenzofuran <0.040 2.44 1.94 mg/Kg 80 40 -140☼
Diethyl phthalate <0.040 2.44 2.00 mg/Kg 82 40 -140☼
Dimethyl phthalate <0.040 2.44 1.91 mg/Kg 78 40 -140☼
Di-n-butyl phthalate 0.098 J 2.44 2.06 mg/Kg 80 40 -140☼
Di-n-octyl phthalate <0.15 2.44 2.13 mg/Kg 87 40 -140☼
Fluoranthene <0.040 2.44 1.90 mg/Kg 78 40 -140☼
Fluorene <0.040 2.44 2.00 mg/Kg 82 40 -140☼
Hexachlorobenzene <0.12 2.44 1.86 mg/Kg 76 40 -140☼
Hexachlorobutadiene <0.040 2.44 1.55 mg/Kg 64 40 -140☼
Hexachlorocyclopentadiene <0.081 F1 2.44 0.505 F1 mg/Kg 21 40 -140☼
Hexachloroethane <0.038 F1 2.44 1.20 mg/Kg 49 40 -140☼
Hexadecane <0.083 2.44 1.78 mg/Kg 73 40 -140☼
Indeno[1,2,3-cd]pyrene <0.040 2.44 1.60 mg/Kg 65 40 -140☼
Isophorone <0.040 2.44 1.68 mg/Kg 69 40 -140☼
Naphthalene <0.040 2.44 1.61 mg/Kg 66 40 -140☼
n-Decane <0.040 2.44 1.04 mg/Kg 42 40 -140☼
Nitrobenzene <0.040 2.44 1.51 mg/Kg 62 40 -140☼
N-Nitrosodimethylamine <0.081 2.44 1.29 mg/Kg 53 40 -140☼
N-Nitrosodi-n-propylamine <0.047 2.44 1.56 mg/Kg 64 40 -140☼
N-Nitrosodiphenylamine <0.040 2.42 1.83 mg/Kg 75 40 -140☼
n-Octadecane <0.091 2.44 1.88 mg/Kg 77 40 -140☼
Pentachlorophenol <0.081 4.88 3.37 mg/Kg 69 40 -140☼
Phenanthrene <0.040 2.44 1.89 mg/Kg 78 40 -140☼
Phenol <0.040 2.44 1.80 mg/Kg 74 40 -140☼
Pyrene <0.040 2.44 2.11 mg/Kg 86 40 -140☼
Pyridine <0.18 4.88 2.01 mg/Kg 41 40 -140☼
Sulfolane <0.040 4.96 3.53 mg/Kg 71 40 -140☼
2,4,6-Tribromophenol (Surr)10 -150
Surrogate
63
MS MS
Qualifier Limits%Recovery
712-Fluorobiphenyl 27 -127
592-Fluorophenol (Surr)25 -128
67Nitrobenzene-d5 (Surr)15 -136
65Phenol-d5 (Surr)29 -130
82Terphenyl-d14 (Surr)24 -146
Eurofins Pensacola
Page 40 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: B9-3-5Lab Sample ID: 400-224585-4 MSD
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589247 Prep Batch: 589191
1,1'-Biphenyl <0.040 2.43 1.92 mg/Kg 79 40 -140 6 30☼
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
1,2,4,5-Tetrachlorobenzene <0.040 F1 2.43 <0.040 F1 mg/Kg 0 40 -140 NC 30☼
1,2,4-Trichlorobenzene <0.040 2.43 1.75 mg/Kg 72 40 -140 14 30☼
1,2-Dichlorobenzene <0.040 2.43 1.60 mg/Kg 66 40 -140 17 30☼
1,3-Dichlorobenzene <0.040 2.43 1.49 mg/Kg 61 40 -140 14 30☼
1,3-Dinitrobenzene <0.087 2.43 1.84 mg/Kg 76 40 -140 5 30☼
1,4-Dichlorobenzene <0.040 2.43 1.52 mg/Kg 63 40 -140 14 30☼
1,4-Dioxane <0.040 F1 2.43 0.905 F1 mg/Kg 37 40 -140 21 30☼
1-Methylnaphthalene <0.040 2.43 2.01 mg/Kg 83 40 -140 16 30☼
2,2'-oxybis(1-chloropropane)<0.040 2.43 1.64 mg/Kg 67 40 -140 14 30☼
2,3,4,6-Tetrachlorophenol <0.040 2.43 1.96 mg/Kg 81 40 -140 3 30☼
2,4,5-Trichlorophenol <0.040 2.43 1.93 mg/Kg 79 40 -140 4 30☼
2,4,6-Trichlorophenol <0.040 2.43 1.85 mg/Kg 76 40 -140 1 30☼
2,4-Dichlorophenol <0.040 2.43 2.06 mg/Kg 85 40 -140 14 30☼
2,4-Dimethylphenol <0.040 2.43 2.01 mg/Kg 83 40 -140 11 30☼
2,4-Dinitrophenol <0.35 4.87 2.03 mg/Kg 42 40 -140 6 30☼
2,4-Dinitrotoluene <0.040 2.43 1.87 mg/Kg 77 40 -140 1 30☼
2,6-Dinitrotoluene <0.040 2.43 1.83 mg/Kg 75 40 -140 0 30☼
2-Chloronaphthalene <0.040 2.43 1.88 mg/Kg 77 40 -140 8 30☼
2-Chlorophenol <0.040 2.43 1.74 mg/Kg 71 40 -140 12 30☼
2-Methylnaphthalene <0.040 2.43 1.94 mg/Kg 80 40 -140 12 30☼
2-Methylphenol <0.098 2.43 2.31 mg/Kg 95 40 -140 16 30☼
2-Nitroaniline <0.086 2.43 1.90 mg/Kg 78 40 -140 5 30☼
2-Nitrophenol <0.040 2.43 1.73 mg/Kg 71 40 -140 16 30☼
3 & 4 Methylphenol <0.040 2.43 2.03 mg/Kg 84 40 -140 9 30☼
3,3'-Dichlorobenzidine <0.040 3.24 2.12 mg/Kg 65 40 -140 7 30☼
3-Nitroaniline <0.095 2.43 2.26 mg/Kg 93 40 -140 8 30☼
4,6-Dinitro-2-methylphenol <0.040 4.87 2.29 mg/Kg 47 40 -140 12 30☼
4-Bromophenyl phenyl ether <0.040 2.43 1.99 mg/Kg 82 40 -140 3 30☼
4-Chloro-3-methylphenol <0.099 2.43 1.86 mg/Kg 76 40 -140 2 30☼
4-Chloroaniline <0.040 2.43 1.58 mg/Kg 65 40 -140 17 30☼
4-Chlorophenyl phenyl ether <0.040 2.43 1.91 mg/Kg 79 40 -140 4 30☼
4-Nitroaniline <0.14 2.43 1.61 mg/Kg 66 40 -140 13 30☼
4-Nitrophenol <0.13 4.87 3.48 mg/Kg 71 40 -140 3 30☼
Acenaphthene <0.040 2.43 1.96 mg/Kg 80 40 -140 1 30☼
Acenaphthylene <0.040 2.43 1.90 mg/Kg 78 40 -140 4 30☼
Acetophenone <0.040 2.43 1.87 mg/Kg 77 40 -140 11 30☼
Aniline <0.053 2.43 1.63 mg/Kg 67 40 -140 20 30☼
Anthracene <0.040 2.43 1.93 mg/Kg 79 40 -140 0 30☼
Atrazine <0.040 2.43 1.90 mg/Kg 78 40 -140 1 30☼
Azobenzene <0.040 2.43 1.86 mg/Kg 77 40 -140 1 30☼
Benzaldehyde <0.040 2.43 1.49 mg/Kg 61 40 -140 24 30☼
Benzidine <0.12 F1 F2 11.3 4.60 F2 mg/Kg 41 40 -140 81 30☼
Benzo[a]anthracene <0.040 2.43 1.87 mg/Kg 77 40 -140 1 30☼
Benzo[a]pyrene <0.040 2.43 1.79 mg/Kg 74 40 -140 4 30☼
Benzo[b]fluoranthene <0.040 2.43 1.92 mg/Kg 79 40 -140 1 30☼
Benzo[g,h,i]perylene <0.040 2.43 1.52 mg/Kg 62 40 -140 14 30☼
Benzo[k]fluoranthene <0.040 2.43 1.91 mg/Kg 78 40 -140 6 30☼
Eurofins Pensacola
Page 41 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: B9-3-5Lab Sample ID: 400-224585-4 MSD
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589247 Prep Batch: 589191
Benzoic acid <0.43 10.4 7.88 mg/Kg 76 40 -140 12 30☼
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
Benzyl alcohol <0.13 F1 2.43 0.729 F1 mg/Kg 30 40 -140 3 30☼
Bis(2-chloroethoxy)methane <0.040 2.43 1.89 mg/Kg 78 40 -140 14 30☼
Bis(2-chloroethyl)ether <0.11 F2 2.43 2.26 F2 mg/Kg 93 40 -140 31 30☼
Bis(2-ethylhexyl) phthalate <0.099 2.43 2.07 mg/Kg 85 40 -140 2 30☼
Butyl benzyl phthalate <0.087 2.43 2.15 mg/Kg 88 40 -140 2 30☼
Caprolactam 0.044 J 2.43 1.70 mg/Kg 68 40 -140 8 30☼
Carbazole <0.040 2.43 2.53 mg/Kg 104 40 -140 3 30☼
Chrysene <0.040 2.43 1.88 mg/Kg 77 40 -140 1 30☼
Dibenz(a,h)anthracene <0.040 2.43 1.49 mg/Kg 61 40 -140 8 30☼
Dibenzofuran <0.040 2.43 1.96 mg/Kg 80 40 -140 1 30☼
Diethyl phthalate <0.040 2.43 1.98 mg/Kg 81 40 -140 1 30☼
Dimethyl phthalate <0.040 2.43 1.96 mg/Kg 80 40 -140 2 30☼
Di-n-butyl phthalate 0.098 J 2.43 1.98 mg/Kg 77 40 -140 4 30☼
Di-n-octyl phthalate <0.15 2.43 2.02 mg/Kg 83 40 -140 5 30☼
Fluoranthene <0.040 2.43 1.92 mg/Kg 79 40 -140 1 30☼
Fluorene <0.040 2.43 1.95 mg/Kg 80 40 -140 2 30☼
Hexachlorobenzene <0.12 2.43 1.86 mg/Kg 76 40 -140 0 30☼
Hexachlorobutadiene <0.040 2.43 1.82 mg/Kg 75 40 -140 16 30☼
Hexachlorocyclopentadiene <0.081 F1 2.43 0.440 F1 mg/Kg 18 40 -140 14 30☼
Hexachloroethane <0.038 F1 2.43 <0.038 F1 mg/Kg 0 40 -140 NC 30☼
Hexadecane <0.083 2.43 1.87 mg/Kg 77 40 -140 5 30☼
Indeno[1,2,3-cd]pyrene <0.040 2.43 1.50 mg/Kg 62 40 -140 6 30☼
Isophorone <0.040 2.43 1.87 mg/Kg 77 40 -140 11 30☼
Naphthalene <0.040 2.43 1.81 mg/Kg 75 40 -140 12 30☼
n-Decane <0.040 2.43 1.21 mg/Kg 50 40 -140 16 30☼
Nitrobenzene <0.040 2.43 1.73 mg/Kg 71 40 -140 14 30☼
N-Nitrosodimethylamine <0.081 2.43 1.55 mg/Kg 64 40 -140 19 30☼
N-Nitrosodi-n-propylamine <0.047 2.43 1.68 mg/Kg 69 40 -140 7 30☼
N-Nitrosodiphenylamine <0.040 2.41 1.94 mg/Kg 80 40 -140 6 30☼
n-Octadecane <0.091 2.43 1.93 mg/Kg 80 40 -140 3 30☼
Pentachlorophenol <0.081 4.87 3.44 mg/Kg 71 40 -140 2 30☼
Phenanthrene <0.040 2.43 1.91 mg/Kg 79 40 -140 1 30☼
Phenol <0.040 2.43 2.03 mg/Kg 83 40 -140 12 30☼
Pyrene <0.040 2.43 2.18 mg/Kg 90 40 -140 3 30☼
Pyridine <0.18 4.87 2.38 mg/Kg 49 40 -140 17 30☼
Sulfolane <0.040 4.94 3.62 mg/Kg 73 40 -140 2 30☼
2,4,6-Tribromophenol (Surr)10 -150
Surrogate
64
MSD MSD
Qualifier Limits%Recovery
762-Fluorobiphenyl 27 -127
702-Fluorophenol (Surr)25 -128
76Nitrobenzene-d5 (Surr)15 -136
73Phenol-d5 (Surr)29 -130
87Terphenyl-d14 (Surr)24 -146
Eurofins Pensacola
Page 42 of 55
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: MAVPH - Massachusetts - Volatile Petroleum Hydrocarbons (GC)
Client Sample ID: Method BlankLab Sample ID: MB 400-589782/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589783 Prep Batch: 589782
RL MDL
C5-C8 Aliphatics <2.7 2.7 2.7 mg/Kg 08/22/22 14:50 08/22/22 21:58 50
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<1.4 1.41.4 mg/Kg 08/22/22 14:50 08/22/22 21:58 50C9-C12 Aliphatics
<0.75 0.750.75 mg/Kg 08/22/22 14:50 08/22/22 21:58 50C9-C10 Aromatics
a,a,a-Trifluorotoluene (fid)93 70-130 08/22/22 21:58 50
MB MB
Surrogate
08/22/22 14:50
Dil FacPreparedAnalyzedQualifierLimits%Recovery
92 08/22/22 14:50 08/22/22 21:58 50a,a,a-Trifluorotoluene (pid)70-130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589782/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589783 Prep Batch: 589782
C5-C8 Aliphatics 15.0 15.7 mg/Kg 105 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
C9-C12 Aliphatics 17.5 19.5 mg/Kg 112 70 -130
C9-C10 Aromatics 2.50 2.80 mg/Kg 112 70 -130
a,a,a-Trifluorotoluene (fid)70 -130
Surrogate
94
LCS LCS
Qualifier Limits%Recovery
93a,a,a-Trifluorotoluene (pid)70 -130
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589782/3-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 589783 Prep Batch: 589782
C5-C8 Aliphatics 15.0 17.6 mg/Kg 117 70 -130 11 25
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
C9-C12 Aliphatics 17.5 21.0 mg/Kg 120 70 -130 7 25
C9-C10 Aromatics 2.50 3.10 mg/Kg 124 70 -130 10 25
a,a,a-Trifluorotoluene (fid)70 -130
Surrogate
93
LCSD LCSD
Qualifier Limits%Recovery
93a,a,a-Trifluorotoluene (pid)70 -130
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC)
Client Sample ID: Method BlankLab Sample ID: MB 400-589859/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590448 Prep Batch: 589859
RL MDL
C9-C18 Aliphatics <1.6 1.6 1.6 mg/Kg 08/23/22 13:56 08/26/22 19:46 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<1.6 1.61.6 mg/Kg 08/23/22 13:56 08/26/22 19:46 1C19-C36 Aliphatics
1-Chlorooctadecane 73 40-140 08/26/22 19:46 1
MB MB
Surrogate
08/23/22 13:56
Dil FacPreparedAnalyzedQualifierLimits%Recovery
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC) (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-589859/1-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
RL MDL
C11-C22 Aromatics <3.0 3.0 3.0 mg/Kg 08/23/22 13:56 08/26/22 23:19 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
o-Terphenyl 56 40-140 08/26/22 23:19 1
MB MB
Surrogate
08/23/22 13:56
Dil FacPreparedAnalyzedQualifierLimits%Recovery
89 08/23/22 13:56 08/26/22 23:19 12-Fluorobiphenyl 40-140
87 08/23/22 13:56 08/26/22 23:19 12-Bromonaphthalene 40-140
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589859/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590448 Prep Batch: 589859
C9-C18 Aliphatics 20.0 11.3 mg/Kg 56 40 -140
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
C19-C36 Aliphatics 26.7 20.2 mg/Kg 76 40 -140
1-Chlorooctadecane 40 -140
Surrogate
83
LCS LCS
Qualifier Limits%Recovery
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589859/2-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
C11-C22 Aromatics 56.7 40.0 mg/Kg 71 40 -140
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
o-Terphenyl 40 -140
Surrogate
53
LCS LCS
Qualifier Limits%Recovery
802-Fluorobiphenyl 40 -140
782-Bromonaphthalene 40 -140
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589859/10-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590448 Prep Batch: 589859
C9-C18 Aliphatics 20.0 11.9 mg/Kg 59 40 -140 5 50
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
C19-C36 Aliphatics 26.7 21.0 mg/Kg 79 40 -140 4 50
1-Chlorooctadecane 40 -140
Surrogate
85
LCSD LCSD
Qualifier Limits%Recovery
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589859/10-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
C11-C22 Aromatics 56.7 42.7 mg/Kg 75 40 -140 7 50
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC) (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-589859/10-A
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
o-Terphenyl 40 -140
Surrogate
56
LCSD LCSD
Qualifier Limits%Recovery
752-Fluorobiphenyl 40 -140
732-Bromonaphthalene 40 -140
Client Sample ID: B8-3-5Lab Sample ID: 400-224585-3 MS
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590448 Prep Batch: 589859
C9-C18 Aliphatics <1.8 22.5 12.2 mg/Kg 54 40 -140☼
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
C19-C36 Aliphatics 3.0 30.0 24.8 mg/Kg 73 40 -140☼
1-Chlorooctadecane S1+40 -140
Surrogate
156
MS MS
Qualifier Limits%Recovery
Client Sample ID: B8-3-5Lab Sample ID: 400-224585-3 MS
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
C11-C22 Aromatics <3.3 63.7 47.4 mg/Kg 74 40 -140☼
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
o-Terphenyl 40 -140
Surrogate
108
MS MS
Qualifier Limits%Recovery
802-Fluorobiphenyl 40 -140
802-Bromonaphthalene 40 -140
Client Sample ID: B8-3-5Lab Sample ID: 400-224585-3 MSD
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590448 Prep Batch: 589859
C9-C18 Aliphatics <1.8 22.5 9.22 mg/Kg 41 40 -140 28 50☼
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
C19-C36 Aliphatics 3.0 30.0 17.0 mg/Kg 47 40 -140 37 50☼
1-Chlorooctadecane 40 -140
Surrogate
60
MSD MSD
Qualifier Limits%Recovery
Client Sample ID: B8-3-5Lab Sample ID: 400-224585-3 MSD
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
C11-C22 Aromatics <3.3 63.8 37.0 mg/Kg 58 40 -140 24 50☼
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
o-Terphenyl S1-40 -140
Surrogate
39
MSD MSD
Qualifier Limits%Recovery
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method: MA-EPH - Massachusetts - Extractable Petroleum Hydrocarbons (GC) (Continued)
Client Sample ID: B8-3-5Lab Sample ID: 400-224585-3 MSD
Matrix: Solid Prep Type: Total/NA
Analysis Batch: 590450 Prep Batch: 589859
2-Fluorobiphenyl 40 -140
Surrogate
77
MSD MSD
Qualifier Limits%Recovery
762-Bromonaphthalene 40 -140
Eurofins Pensacola
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Lab Chronicle
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Client Sample ID: B6-3-5 Lab Sample ID: 400-224585-1
Matrix: SolidDate Collected: 08/16/22 11:05
Date Received: 08/17/22 09:01
Analysis Moisture WJM08/18/22 08:211 EET PEN589250
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA
Client Sample ID: B6-3-5 Lab Sample ID: 400-224585-1
Matrix: SolidDate Collected: 08/16/22 11:05
Percent Solids: 89.9Date Received: 08/17/22 09:01
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.326 g 5.00 g
Analysis 8260D 1 589407 08/19/22 15:45 AGW EET PENTotal/NA 5 mL 5 mL
Prep 3546 589191 08/17/22 15:27 JTC EET PENTotal/NA 15.01 g 1 mL
Analysis 8270E 1 589337 08/18/22 19:13 S1B EET PENTotal/NA
Prep 5035 589782 08/22/22 14:50 SAB EET PENTotal/NA 5.503 g 5.00 g
Analysis MAVPH 50 589783 08/24/22 07:29 SAB EET PENTotal/NA 5 mL 5 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.34 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 21:08 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.34 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 00:42 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: B7-3-5 Lab Sample ID: 400-224585-2
Matrix: SolidDate Collected: 08/16/22 11:30
Date Received: 08/17/22 09:01
Analysis Moisture WJM08/18/22 08:211 EET PEN589250
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA
Client Sample ID: B7-3-5 Lab Sample ID: 400-224585-2
Matrix: SolidDate Collected: 08/16/22 11:30
Percent Solids: 87.2Date Received: 08/17/22 09:01
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 6.727 g 5.00 g
Analysis 8260D 1 589407 08/19/22 16:06 AGW EET PENTotal/NA 5 mL 5 mL
Prep 3546 589191 08/17/22 15:27 JTC EET PENTotal/NA 15.24 g 1 mL
Analysis 8270E 2 589247 08/18/22 20:35 S1B EET PENTotal/NA
Prep 5035 589782 08/22/22 14:50 SAB EET PENTotal/NA 6.207 g 5.00 g
Analysis MAVPH 50 589783 08/24/22 08:30 SAB EET PENTotal/NA 5 mL 5 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.19 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 00:58 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.19 g 2 mL
Analysis MA-EPH 1 590583 08/29/22 13:55 RS EET PENTotal/NA 1 mL 1 mL
Eurofins Pensacola
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Lab Chronicle
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Client Sample ID: B8-3-5 Lab Sample ID: 400-224585-3
Matrix: SolidDate Collected: 08/16/22 11:15
Date Received: 08/17/22 09:01
Analysis Moisture WJM08/18/22 08:211 EET PEN589250
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA
Client Sample ID: B8-3-5 Lab Sample ID: 400-224585-3
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.724 g 5.00 g
Analysis 8260D 1 589407 08/19/22 16:27 AGW EET PENTotal/NA 5 mL 5 mL
Prep 3546 589191 08/17/22 15:27 JTC EET PENTotal/NA 15.03 g 1 mL
Analysis 8270E 2 589247 08/18/22 21:01 S1B EET PENTotal/NA
Prep 3546 589191 08/17/22 15:27 JTC EET PENTotal/NA 15.03 g 1 mL
Analysis 8270E 2 589414 08/19/22 22:52 VC1 EET PENTotal/NA
Prep 5035 589782 08/22/22 14:50 SAB EET PENTotal/NA 5.902 g 5.00 g
Analysis MAVPH 50 589783 08/24/22 09:30 SAB EET PENTotal/NA 5 mL 5 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.14 g 2 mL
Analysis MA-EPH 1 590450 08/26/22 23:52 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.14 g 2 mL
Analysis MA-EPH 1 590583 08/29/22 13:39 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: B9-3-5 Lab Sample ID: 400-224585-4
Matrix: SolidDate Collected: 08/16/22 11:45
Date Received: 08/17/22 09:01
Analysis Moisture WJM08/18/22 08:211 EET PEN589250
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA
Client Sample ID: B9-3-5 Lab Sample ID: 400-224585-4
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Prep 5035 BEP08/20/22 13:06 EET PEN589588
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.935 g 5.00 g
Analysis 8260D 1 589568 08/20/22 17:37 BEP EET PENTotal/NA 5 mL 5 mL
Prep 3546 589191 08/17/22 15:27 JTC EET PENTotal/NA 15.17 g 1 mL
Analysis 8270E 1 589247 08/18/22 17:33 S1B EET PENTotal/NA
Prep 5035 589782 08/22/22 14:50 SAB EET PENTotal/NA 7.299 g 5.00 g
Analysis MAVPH 50 589783 08/24/22 10:30 SAB EET PENTotal/NA 5 mL 5 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.45 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 21:57 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.45 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 01:32 RS EET PENTotal/NA 1 mL 1 mL
Eurofins Pensacola
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Lab Chronicle
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Client Sample ID: Method Blank Lab Sample ID: MB 400-589191/1-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 3546 JTC08/17/22 15:26 EET PEN589191
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 1 mL
Analysis 8270E 1 589337 08/18/22 18:29 S1B EET PENTotal/NA
Client Sample ID: Method Blank Lab Sample ID: MB 400-589480/3-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis 8260D 1 589407 08/19/22 12:37 AGW EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-589588/2-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 BEP08/20/22 13:06 EET PEN589588
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis 8260D 1 589568 08/20/22 15:35 BEP EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-589782/1-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 SAB08/22/22 14:50 EET PEN589782
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis MAVPH 50 589783 08/22/22 21:58 SAB EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-589859/1-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 3546 LH08/23/22 13:56 EET PEN589859
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 19:46 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 13:56 LH EET PENTotal/NA 15.00 g 2 mL
Analysis MA-EPH 1 590450 08/26/22 23:19 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589191/2-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 3546 JTC08/17/22 15:26 EET PEN589191
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 1 mL
Analysis 8270E 1 589337 08/18/22 18:51 S1B EET PENTotal/NA 0.4 mL 1.0 mL
Eurofins Pensacola
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Lab Chronicle
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589480/1-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis 8260D 1 589407 08/19/22 11:19 AGW EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589588/1-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 BEP08/20/22 13:06 EET PEN589588
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis 8260D 1 589568 08/20/22 14:22 BEP EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589782/2-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 SAB08/22/22 14:50 EET PEN589782
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis MAVPH 50 589783 08/22/22 22:58 SAB EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589859/2-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 3546 LH08/23/22 13:56 EET PEN589859
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 20:02 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 13:56 LH EET PENTotal/NA 15.00 g 2 mL
Analysis MA-EPH 1 590450 08/26/22 23:36 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 400-589480/2-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 BPO08/19/22 09:41 EET PEN589480
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis 8260D 1 589407 08/19/22 11:54 AGW EET PENTotal/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 400-589782/3-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 5035 SAB08/22/22 14:50 EET PEN589782
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5.00 g 5.00 g
Analysis MAVPH 50 589783 08/22/22 23:58 SAB EET PENTotal/NA 5 mL 5 mL
Eurofins Pensacola
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Lab Chronicle
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 400-589859/10-A
Matrix: SolidDate Collected: N/A
Date Received: N/A
Prep 3546 LH08/23/22 14:01 EET PEN589859
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 22:14 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.00 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 01:49 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: B8-3-5 Lab Sample ID: 400-224585-3 MS
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Prep 3546 LH08/23/22 14:01 EET PEN589859
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.04 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 20:35 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.04 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 00:09 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: B8-3-5 Lab Sample ID: 400-224585-3 MSD
Matrix: SolidDate Collected: 08/16/22 11:15
Percent Solids: 88.8Date Received: 08/17/22 09:01
Prep 3546 LH08/23/22 14:01 EET PEN589859
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.00 g 2 mL
Analysis MA-EPH 1 590448 08/26/22 20:52 RS EET PENTotal/NA 1 mL 1 mL
Prep 3546 589859 08/23/22 14:01 LH EET PENTotal/NA 15.00 g 2 mL
Analysis MA-EPH 1 590450 08/27/22 00:26 RS EET PENTotal/NA 1 mL 1 mL
Client Sample ID: B9-3-5 Lab Sample ID: 400-224585-4 MS
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Prep 3546 JTC08/17/22 15:27 EET PEN589191
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.21 g 1 mL
Analysis 8270E 1 589247 08/18/22 16:41 S1B EET PENTotal/NA
Client Sample ID: B9-3-5 Lab Sample ID: 400-224585-4 MSD
Matrix: SolidDate Collected: 08/16/22 11:45
Percent Solids: 80.8Date Received: 08/17/22 09:01
Prep 3546 JTC08/17/22 15:27 EET PEN589191
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 15.26 g 1 mL
Analysis 8270E 1 589247 08/18/22 17:07 S1B EET PENTotal/NA 0.4 mL 1.0 mL
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
Page 51 of 55
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Method Summary
Job ID: 400-224585-1Client: Partner Engineering and Science, Inc
Project/Site: Outer Banks Marina
Method Method Description LaboratoryProtocol
SW8468260DVolatile Organic Compounds by GC/MS EET PEN
SW8468270ESemivolatile Organic Compounds (GC/MS)EET PEN
MA DEPMAVPHMassachusetts - Volatile Petroleum Hydrocarbons (GC)EET PEN
MA DEPMA-EPH Massachusetts - Extractable Petroleum Hydrocarbons (GC)EET PEN
EPAMoisturePercent Moisture EET PEN
SW8463546Microwave Extraction EET PEN
SW8465035Closed System Purge and Trap EET PEN
Protocol References:
EPA = US Environmental Protection Agency
MA DEP = Massachusetts Department Of Environmental Protection
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Accreditation/Certification Summary
Client: Partner Engineering and Science, Inc Job ID: 400-224585-1
Project/Site: Outer Banks Marina
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
8270E 3546 Solid Hexadecane
8270E 3546 Solid n-Decane
8270E 3546 Solid n-Octadecane
8270E 3546 Solid Sulfolane
Moisture Solid Percent Moisture
Eurofins Pensacola
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Login Sample Receipt Checklist
Client: Partner Engineering and Science, Inc Job Number: 400-224585-1
Login Number: 224585
Question Answer Comment
Creator: Whitley, Adrian
List Source: Eurofins Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
N/AThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
TrueSamples were received on ice.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.3.3°C IR9
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
TrueContainers are not broken or leaking.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
N/AContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins Pensacola
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APPENDIX D: SOURCE WATER ASSESSMENT PROGRAM MAP
SWAPInfo 2.0 Map
State of North Carolina DOT, Esri, HERE, Garmin, GeoTechnologies, Inc.,Intermap, NGA, USGS
All PWS Sources 2021
Surface Water Community
Surface Water Non-Transient, Non-Community
Groundwater Community
Groundwater Non-Transient, Non-Community
Groundwater Non-Community Transient
Groundwater Adjacent
9/10/2022, 4:51:56 PM
0 0.15 0.30.07 mi
0 0.25 0.50.13 km
1:12,037
State of North Carolina DOT, Esri, HERE, Garmin, GeoTechnologies, Inc., NGA, USGS |

APPENDIX E: DARE COUNTY WATER SYSTEM REPORT

Source Water Assessment Program Report for
DARE COUNTY WATER SYSTEM
Community Water System
Introduction: What is a Source Water Assessment?
The North Carolina Division of Water Resources, Public Water Supply (PWS) Section is responsible for implementing
the Source Water Assessment Program (SWAP) and completing assessments for all public drinking water supplies in
the state. The 1996 amendments to the Safe Drinking Water Act provided federal support and required states to conduct
assessments of all public water systems. A source water assessment is a qualitative evaluation of the potential of a
drinking water source to become contaminated by the identified potential contaminant sources (PCS) within the
delineated area. In North Carolina there are approximately 8,000 public water supply sources that were assessed by the
state. The PWS Section has gathered information for each water supply and developed a process for completing the
assessments. This process is summarized in the next few pages and detailed in Section 6 of this report.
This report provides a summary of the results for the Source Water Assessment for your drinking water source(s).
What is the Source of Your Drinking Water?
Everyone wants clean, safe drinking water and we assume this natural resource will always be available to us. However,
drinking water sources can be threatened by many potential contaminant sources, including underground storage tanks
for gasoline, permitted wastewater discharges and other waste disposal sites, improper handling of hazardous materials,
urban storm water runoff, or other types of non-point source contamination such as runoff produced by agricultural
activities and land clearing for development. Your drinking water source(s) is listed in Table 1. Protecting your drinking
water from becoming contaminated is a wise investment in public health and your community's future.
Table 1. Public Water Supply System Information
System Name DARE COUNTY WATER SYSTEM
City KILL DEVIL HILL
PWS ID NC0428030
Source Name ORVILLE WELL (11)
Source Name RO WELL #1
Source Name RO WELL #10
Source Name RO WELL #2
Source Name RO WELL #3
Source Name RO WELL #4
Source Name RO WELL #5
Source Name RO WELL #6
Source Name RO WELL #7
Source Name RO WELL #8
Source Name RO WELL #9
Source Name RO WELL#15
Source Name RO WELL#17
Source Name SKYCO WELL #10
Source Name SKYCO WELL #11
Source Name SKYCO WELL #13
PWS ID: NC0428030 Page 1 of 251 September 10, 2020
Source Name SKYCO WELL #14
Source Name SKYCO WELL #2
Source Name SKYCO WELL #4
Source Name SKYCO WELL #5
Source Name SKYCO WELL #6
Source Name SKYCO WELL #7
Source Name SKYCO WELL #8
Source Name WILBUR WELL (12)
Assessment Report Contents
This assessment report includes the following sections:
Section 1: Assessment Area Delineation
Section 2: Potential Contaminant Source Inventory and Map
Section 3: What is a Susceptibility Rating?
Section 4: Reviewing Your SWAP Results
Section 5: Maps, Tables and Figures for your Drinking Water Source(s)
Section 6: North Carolina's SWAP Approach
Section 1: Assessment Area Delineation
The area delineated for your well(s) for the purpose of this assessment is the contributing area for the well(s). When a
well is pumped, it begins to influence groundwater that is flowing through the subsurface and towards the well. The
pumping of the well creates a contributing area around the well that supplies water to the well. This is the area through
which contaminants, if released to the environment, can be reasonably expected to move through the ground and reach
the well.
Section 2: Potential Contaminant Source Inventory and Map
The potential contaminant source inventory map shows the delineated area for your drinking water source(s). This is the
area where potential contaminant sources, if released to the environment, could reasonably be expected to be a risk or a
potential for contamination of your drinking water supply. A PCS in this assessment report is a facility or site regulated
under a state or federal regulatory program. These facilities are identified in electronic databases that contain location
information for each facility. Only databases that include statewide information were used for this source water
assessment. Included in this report are:
1) A table of any PCS identified within the delineated assessment area; and
2) A map of the delineated assessment area showing PCSs, roads, jurisdictional boundaries and other pertinent
information.
It is important to note that the PCSs identified in this report are only potential sources of contamination to your drinking
water source. Environmental contamination is not likely to occur if harmful contaminants are managed properly.
Section 3: What is a Susceptibility Rating?
PWS ID: NC0428030 Page 2 of 251 September 10, 2020
In North Carolina the susceptibility of any drinking water source is based on two components, a contaminant rating and
an inherent vulnerability rating. Your drinking water source(s) was assigned a qualitative susceptibility rating of higher,
moderate or lower based on the results of the contaminant rating and inherent vulnerability rating process as described
in the following paragraphs.
Susceptibility Rating
The final susceptibility rating for your drinking water source(s) is determined by combining the contaminant rating and
the inherent vulnerability rating. More detailed information on the susceptibility rating process can be found in Section
6 of this report.
Contaminant Rating
The contaminant rating for your drinking water source(s) was determined based on the number and location of PCSs
within the delineated area. Each PCS identified within the delineated area was assigned a risk rating of higher, moderate
or lower. The number of PCSs that occur within the delineated area was determined and a contaminant rating of higher,
moderate, or lower was assigned to your drinking water source(s).
Inherent Vulnerability Rating
The inherent vulnerability rating of your well(s) refers to the geologic characteristics or existing conditions of the well
and its delineated assessment area. These characteristics include aquifer rating, unsaturated zone rating and well
integrity/well construction rating. The aquifer rating is an assessment of the water transmitting characteristics of the
aquifer. The unsaturated zone rating is an assessment of the likelihood that contaminants from surface and shallow
sources will follow the path of aquifer recharge and reach the water table. The well integrity/construction rating is an
assessment of the quality of the construction of the well. An inherent vulnerability rating of higher, moderate or lower
was assigned to your well(s).
Table 2. SWAP Results Summary
Source Name Inherent Vulnerability Rating Contaminant Rating Susceptibility Rating
ORVILLE WELL (11)Lower Moderate Moderate
RO WELL #1 Lower Higher Moderate
RO WELL #10 Lower Higher Moderate
RO WELL #2 Lower Moderate Moderate
RO WELL #3 Lower Higher Moderate
RO WELL #4 Lower Higher Moderate
RO WELL #5 Lower Higher Moderate
RO WELL #6 Lower Higher Moderate
RO WELL #7 Lower Higher Moderate
RO WELL #8 Lower Higher Moderate
RO WELL #9 Lower Higher Moderate
RO WELL#15 Lower Moderate Moderate
RO WELL#17 Lower Lower Lower
SKYCO WELL #10 Lower Lower Lower
SKYCO WELL #11 Lower Higher Moderate
SKYCO WELL #13 Lower Lower Lower
PWS ID: NC0428030 Page 3 of 251 September 10, 2020
SKYCO WELL #14 Moderate Moderate Moderate
SKYCO WELL #2 Lower Lower Lower
SKYCO WELL #4 Lower Lower Lower
SKYCO WELL #5 Lower Lower Lower
SKYCO WELL #6 Lower Lower Lower
SKYCO WELL #7 Moderate Lower Moderate
SKYCO WELL #8 Lower Lower Lower
WILBUR WELL (12)Lower Higher Moderate
It is important to understand that a susceptibility rating of higher does not imply poor water
quality. Susceptibility is an indication of a water supply's potential to become contaminated
by the identified PCSs within the assessment area.
Table 3. Well Information
Source Name Well Yield (Gallons/Min)Well Depth (Feet)
ORVILLE WELL (11)600 405
RO WELL #1 900 425
RO WELL #10 1000 450
RO WELL #2 900 425
RO WELL #3 900 425
RO WELL #4 900 425
RO WELL #5 900 425
RO WELL #6 900 425
RO WELL #7 900 425
RO WELL #8 900 425
RO WELL #9 1100 450
RO WELL#15 600 405
RO WELL#17 600 430
SKYCO WELL #10 1017 250
SKYCO WELL #11 967 223
SKYCO WELL #13 410 225
SKYCO WELL #14 500 Unknown
SKYCO WELL #2 600 220
SKYCO WELL #4 996 250
SKYCO WELL #5 500 235
SKYCO WELL #6 650 225
SKYCO WELL #7 1382 165
SKYCO WELL #8 1083 250
WILBUR WELL (12)600 435
Section 4: Reviewing Your SWAP Results
PWS ID: NC0428030 Page 4 of 251 September 10, 2020
Please review the information on your drinking water source(s) provided in this report. If you believe any of this
information is incorrect please contact the Public Water Supply Section by e-mail at the following address:
[e-mail] or you may submit comments to us at:
SWAP
Public Water Supply Section
1634 Mail Service Center
Raleigh, NC 27699-1634
Or you may contact the Source Water Assessment staff by phone at 919-707-9098.
Section 5: Maps, Tables and Figures for Your Drinking Water Source(s)
Maps, tables and figures specific to your drinking water source(s) are included in this report in the following pages and
are listed below.
Map 1. Location Map
Map 2. Delineated Area and PCS Map
Table 4. Potential Contaminant Source Attributes
Table 5. Inherent Vulnerability Rating
Table 6. Unsaturated Zone Rating Calculation or Watershed Characteristics Rating Calculation
Figure 1. Land Use / Land Cover Categories
Figure 2. Unsaturated Zone Rating or Watershed Characteristics Rating
Figure 3. Vertical Hydraulic Conductance Rating or Average Annual Precipitation Rating
Figure 4. Land Surface Slope Rating
Figure 5. Land Use Rating
Figure 6. Land Cover Rating
Figure 7. Ground Water Contribution Rating (only appliable to surface water sources)
PWS ID: NC0428030 Page 5 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, ORVILLE WELL (11)
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
WRIGHT
BROTHERS/KILL DEVIL
HILLS
00-0-0000000844 UST Permits Higher 1000 North
Croatan Highway
Kill Devil Hills 27948 Dare
KILL DEVIL HILLS NC
CO
6362180 Tier II Sites Higher 202 Asheville Dr Kill Devil Hills 27948 Dare
Croatan Surf Club - Express SW7070301 NPDES Permits Lower 1319 N Virginia
Dare Trl
Kill Devil Hills 27948 Dare
Lowe's of Kill Devil Hills,
NC (Store #3216)
6392124 Tier II Sites Higher 1500 North
Croatan Highway
Kill Devil Hills 27948 Dare
Lowe's - Kill Devil Hills,
NC
SW7101003 NPDES Permits Lower 1500 N Croatan
Hwy
Kill Devil Hl 27948 Dare
Kill Devil Hills Grocery SW7160902 NPDES Permits Lower N Croatan Hwy W
1st St
Kill Devil Hl 27948 Dare
Kill Devil Hills Dune
Restoration Post Isabel
SW7040307 NPDES Permits Lower 1527 N Va Dare
Trl
Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, ORVILLE WELL (11)
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Lower
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, ORVILLE WELL (11)
Unsaturated Zone Score 78.3
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
PWS ID: NC0428030 Page 8 of 251 September 10, 2020
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 9 of 251 September 10, 2020
PWS ID: NC0428030 Page 10 of 251 September 10, 2020
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PWS ID: NC0428030 Page 17 of 251 September 10, 2020
Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #1
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
AutoZone - Kill Devil Hills,
NC
SW7110711 NPDES Permits Lower 1214 S Croatan
Hwy
Kill Devil Hl 27948 Dare
Woodcat, LLC SW7050631 NPDES Permits Lower 1217 S Croatan
Hwy
Kill Devil Hills 27948 Dare
Walgreens Drug Store -
KDH
SW7020916 NPDES Permits Lower 1200 S Croatan
Hwy
Kill Devil Hills 27948 Dare
CVS PHARMACY #7361 NCR000135459 Hazardous
Waste Sites
Higher 1101 Croatan
Highway (us 158)
Kill Devil Hills 27948 Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Woolard Retail Store SW7030520 NPDES Permits Lower 808 S Croatan Hwy Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KILL DEVIL HILLS GAS
HOUSE
00-0-0000021354 UST Permits Higher 801 South Croatan
Hwy
Kill Devil Hills 27948 Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Dare County North RO plant 6357010 Tier II Sites Higher 600 Mustian St.Kill Devil Hills 27948 Dare
Dare County Colington
Pump Station
6357012 Tier II Sites Higher 600 Mustian St Kill Devil Hills 27948 Dare
Daniel-Gal, LLC SW7061205 NPDES Permits Lower Intersect Of S
Croatan Hwy
Baum St
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
PWS ID: NC0428030 Page 18 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Captain Georges Restaurant
- express
SW7071201 NPDES Permits Lower 705 S Croatan Hwy Kill Devil Hills 27948 Dare
Outer Banks Brewing
Station
SW7981012 NPDES Permits Lower 600 S Croatan Hwy Kill Devil Hl 27948 Dare
First Flight Retreat - Express SW7060419 NPDES Permits Lower 815 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
R H G Office Building SW7101102 NPDES Permits Lower 700 Bluejay St Kill Devil Hl 27948 Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Pitco 1, LLC - Parking Lot SW7110312 NPDES Permits Lower 407 S Memorial
Ave
Kill Devil Hl 27948 Dare
Shutters On The Banks
Hotel
SW7031215 NPDES Permits Lower 405 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
CIRCLE K 2723854 00-0-0000011535 UST Permits Higher 100 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
COLINGTON ROAD
DAIRY QUEEN
88187 Pollution
Incidents
Higher Collington Rd &
Hwy 158
Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #1
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #1
Unsaturated Zone Score 74.3
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
PWS ID: NC0428030 Page 19 of 251 September 10, 2020
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 20 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #10
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Village Realty Guest
Operations Building
SW7070115 NPDES Permits Lower Satterfield Landing
Rd
Nags Head 27959 Dare
South Beach Plaza SW7060320 NPDES Permits Lower 2404 S Croatan
Hwy
Nags Head 27959 Dare
Nags Head W. Side
Multi-use Path Ph III
SW7091108 NPDES Permits Lower S Croatan Hwy Nags Head 27959 Dare
Nags Head - Vista Colony
West Drainage
Improvements
SW7100911 NPDES Permits Lower Vista Colony W Nags Head 27959 Dare
Artisan Marble and Tile -
Express
SW7071213 NPDES Permits Lower 2230 W Lark Ave Nags Head 27959 Dare
Carolinian Circle Recreation
Area
SW7030719 NPDES Permits Lower 141 W Carolinian
Cir
Nags Head 27959 Dare
Village Realty Real Estate
Rental Management
SW7000713 NPDES Permits Lower 223 Satterfield
Landing Rd
Nags Head 27959 Dare
Plaza Del Sol Retail
Complex
SW7020716 NPDES Permits Lower 2236 S Croatan
Hwy
Nags Head 27959 Dare
T.W.'s Bait & Tackle SW7051011 NPDES Permits Lower 2230 S Croatan
Hwy
Nags Head 27959 Dare
NAGS HEAD PUBLIC
WORKS DEPT
00-0-0000021320 UST Permits Higher 2200 Lark Avenue Nags Head 27959 Dare
PetSmart SW7111109 NPDES Permits Lower 2210 S Croatan
Hwy Us 158
Nags Head 27959 Dare
Eighth Street Water Plant 6376388 Tier II Sites Higher 2110 Pond Ave Nags Head 27959 Dare
PUGHS CAR CARE
CENTER
NONCD0002344 Inactive
Hazardous Sites
Higher 2209 South
Croatan Highway
Nags Head Dare
HARRELL SIGN
COMPANY
NONCD0001303 Inactive
Hazardous Sites
Higher 512 Pershing Rd Raleigh Wake
Reddy Ice-Kill Devil Hills (
419)
NCGNE0740 NPDES Permits Lower 400 W Eighth St Kill Devil Hl 27948 Dare
Nags Head Self Storage SW7120708 NPDES Permits Lower 209 W Eighth St Nags Head 27959 Dare
STOP QUIK INC 00-0-0000031988 UST Permits Higher 2112 South
Croatan Highway
Nags Head 27959 Dare
Ocean Commerce Park
Addition
SW7130802 NPDES Permits Lower 2004 S Croatan
Hwy
Kill Devil Hl 27948 Dare
Nags Head ABC Store SW7130409 NPDES Permits Lower 2104 S Croatan
Hwy
Nags Head 27959 Dare
RITE AID #11428 NCR000157784 Hazardous
Waste Sites
Higher 2014 South
Croatan Hwy
Kill Devil Hills 27948 Dare
Lake Drive Development -
Lat 84, 86 & 88
SW7151002 NPDES Permits Lower 605 W Lake Dr Kill Devil Hl 27948 Dare
Kill Devil Hills Satellite Fire
Station
SW7080517 NPDES Permits Lower 2011 S Croatan
Hwy
Kill Devil Hills 27948 Dare
Fred Bear Warehouse SW7971110 NPDES Permits Lower Lake Dr Kill Devil Hl 27948 Dare
PWS ID: NC0428030 Page 29 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
NCDOT - Ocean Outfall #6
- KDH - CAMA
SW7071207 NPDES Permits Lower Lake Dr Kill Devil Hills 27948 Dare
Ocean Commerce Park - 98
Additions
SW7980429 NPDES Permits Lower 2004 S Croatan
Hwy
Kill Devil Hl 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #10
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #10
Unsaturated Zone Score 73.2
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #2
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Colington Substation 6369859 Tier II Sites Higher 120 Veteran's
Drive
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
PWS ID: NC0428030 Page 39 of 251 September 10, 2020
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #2
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #2
Unsaturated Zone Score 69.7
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 40 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #3
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
AutoZone - Kill Devil Hills,
NC
SW7110711 NPDES Permits Lower 1214 S Croatan
Hwy
Kill Devil Hl 27948 Dare
Woodcat, LLC SW7050631 NPDES Permits Lower 1217 S Croatan
Hwy
Kill Devil Hills 27948 Dare
Walgreens Drug Store -
KDH
SW7020916 NPDES Permits Lower 1200 S Croatan
Hwy
Kill Devil Hills 27948 Dare
CVS PHARMACY #7361 NCR000135459 Hazardous
Waste Sites
Higher 1101 Croatan
Highway (us 158)
Kill Devil Hills 27948 Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Woolard Retail Store SW7030520 NPDES Permits Lower 808 S Croatan Hwy Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KILL DEVIL HILLS GAS
HOUSE
00-0-0000021354 UST Permits Higher 801 South Croatan
Hwy
Kill Devil Hills 27948 Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Dare County North RO plant 6357010 Tier II Sites Higher 600 Mustian St.Kill Devil Hills 27948 Dare
Dare County Colington
Pump Station
6357012 Tier II Sites Higher 600 Mustian St Kill Devil Hills 27948 Dare
Daniel-Gal, LLC SW7061205 NPDES Permits Lower Intersect Of S
Croatan Hwy
Baum St
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
Captain Georges Restaurant
- express
SW7071201 NPDES Permits Lower 705 S Croatan Hwy Kill Devil Hills 27948 Dare
Outer Banks Brewing
Station
SW7981012 NPDES Permits Lower 600 S Croatan Hwy Kill Devil Hl 27948 Dare
First Flight Retreat - Express SW7060419 NPDES Permits Lower 815 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
R H G Office Building SW7101102 NPDES Permits Lower 700 Bluejay St Kill Devil Hl 27948 Dare
PWS ID: NC0428030 Page 49 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Pitco 1, LLC - Parking Lot SW7110312 NPDES Permits Lower 407 S Memorial
Ave
Kill Devil Hl 27948 Dare
Shutters On The Banks
Hotel
SW7031215 NPDES Permits Lower 405 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
CIRCLE K 2723854 00-0-0000011535 UST Permits Higher 100 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
COLINGTON ROAD
DAIRY QUEEN
88187 Pollution
Incidents
Higher Collington Rd &
Hwy 158
Kill Devil Hills 27948 Dare
High Ridge SW7011013 NPDES Permits Lower Kitty Hawk Rd Kill Devil Hills 27948 Dare
Billy Roughton - CAMA SW7080821 NPDES Permits Lower Bay Dr Chowan St Kill Devil Hills 27948 Dare
Town Of Kill Devil Hills -
Outfall
SW7980103 NPDES Permits Lower Dare
STOP N SHOP 00-2-0000011858 UST Permits Higher 100 S Virginia
Dare Trail
Kill Devil Hills 27948 Dare
Sunset Bay PUD -
modification
SW7040910 NPDES Permits Lower Ocean Bay Blvd Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #3
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #3
Unsaturated Zone Score 75.9
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
PWS ID: NC0428030 Page 50 of 251 September 10, 2020
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 51 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #4
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
CVS PHARMACY #7361 NCR000135459 Hazardous
Waste Sites
Higher 1101 Croatan
Highway (us 158)
Kill Devil Hills 27948 Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Woolard Retail Store SW7030520 NPDES Permits Lower 808 S Croatan Hwy Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KILL DEVIL HILLS GAS
HOUSE
00-0-0000021354 UST Permits Higher 801 South Croatan
Hwy
Kill Devil Hills 27948 Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Dare County North RO plant 6357010 Tier II Sites Higher 600 Mustian St.Kill Devil Hills 27948 Dare
Dare County Colington
Pump Station
6357012 Tier II Sites Higher 600 Mustian St Kill Devil Hills 27948 Dare
Daniel-Gal, LLC SW7061205 NPDES Permits Lower Intersect Of S
Croatan Hwy
Baum St
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
Captain Georges Restaurant
- express
SW7071201 NPDES Permits Lower 705 S Croatan Hwy Kill Devil Hills 27948 Dare
Outer Banks Brewing
Station
SW7981012 NPDES Permits Lower 600 S Croatan Hwy Kill Devil Hl 27948 Dare
First Flight Retreat - Express SW7060419 NPDES Permits Lower 815 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
R H G Office Building SW7101102 NPDES Permits Lower 700 Bluejay St Kill Devil Hl 27948 Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Pitco 1, LLC - Parking Lot SW7110312 NPDES Permits Lower 407 S Memorial
Ave
Kill Devil Hl 27948 Dare
Shutters On The Banks
Hotel
SW7031215 NPDES Permits Lower 405 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
PWS ID: NC0428030 Page 60 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
CIRCLE K 2723854 00-0-0000011535 UST Permits Higher 100 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
COLINGTON ROAD
DAIRY QUEEN
88187 Pollution
Incidents
Higher Collington Rd &
Hwy 158
Kill Devil Hills 27948 Dare
High Ridge SW7011013 NPDES Permits Lower Kitty Hawk Rd Kill Devil Hills 27948 Dare
Billy Roughton - CAMA SW7080821 NPDES Permits Lower Bay Dr Chowan St Kill Devil Hills 27948 Dare
Town Of Kill Devil Hills -
Outfall
SW7980103 NPDES Permits Lower Dare
STOP N SHOP 00-2-0000011858 UST Permits Higher 100 S Virginia
Dare Trail
Kill Devil Hills 27948 Dare
Sunset Bay PUD -
modification
SW7040910 NPDES Permits Lower Ocean Bay Blvd Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #4
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #4
Unsaturated Zone Score 76.4
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 61 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #5
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
Walgreens Drug Store -
KDH
SW7020916 NPDES Permits Lower 1200 S Croatan
Hwy
Kill Devil Hills 27948 Dare
CVS PHARMACY #7361 NCR000135459 Hazardous
Waste Sites
Higher 1101 Croatan
Highway (us 158)
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Woolard Retail Store SW7030520 NPDES Permits Lower 808 S Croatan Hwy Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KILL DEVIL HILLS GAS
HOUSE
00-0-0000021354 UST Permits Higher 801 South Croatan
Hwy
Kill Devil Hills 27948 Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Dare County North RO plant 6357010 Tier II Sites Higher 600 Mustian St.Kill Devil Hills 27948 Dare
Dare County Colington
Pump Station
6357012 Tier II Sites Higher 600 Mustian St Kill Devil Hills 27948 Dare
Daniel-Gal, LLC SW7061205 NPDES Permits Lower Intersect Of S
Croatan Hwy
Baum St
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
PWS ID: NC0428030 Page 70 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Captain Georges Restaurant
- express
SW7071201 NPDES Permits Lower 705 S Croatan Hwy Kill Devil Hills 27948 Dare
Outer Banks Brewing
Station
SW7981012 NPDES Permits Lower 600 S Croatan Hwy Kill Devil Hl 27948 Dare
First Flight Retreat - Express SW7060419 NPDES Permits Lower 815 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
R H G Office Building SW7101102 NPDES Permits Lower 700 Bluejay St Kill Devil Hl 27948 Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Pitco 1, LLC - Parking Lot SW7110312 NPDES Permits Lower 407 S Memorial
Ave
Kill Devil Hl 27948 Dare
Shutters On The Banks
Hotel
SW7031215 NPDES Permits Lower 405 S Virginia
Dare Trl
Kill Devil Hills 27948 Dare
CIRCLE K 2723854 00-0-0000011535 UST Permits Higher 100 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
COLINGTON ROAD
DAIRY QUEEN
88187 Pollution
Incidents
Higher Collington Rd &
Hwy 158
Kill Devil Hills 27948 Dare
High Ridge SW7011013 NPDES Permits Lower Kitty Hawk Rd Kill Devil Hills 27948 Dare
Billy Roughton - CAMA SW7080821 NPDES Permits Lower Bay Dr Chowan St Kill Devil Hills 27948 Dare
Town Of Kill Devil Hills -
Outfall
SW7980103 NPDES Permits Lower Dare
STOP N SHOP 00-2-0000011858 UST Permits Higher 100 S Virginia
Dare Trail
Kill Devil Hills 27948 Dare
Sunset Bay PUD -
modification
SW7040910 NPDES Permits Lower Ocean Bay Blvd Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #5
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #5
Unsaturated Zone Score 74.6
Notes:
1. Unsaturated Zone Score for each cell (CS):
PWS ID: NC0428030 Page 71 of 251 September 10, 2020
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 72 of 251 September 10, 2020
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #6
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
CVS PHARMACY #7361 NCR000135459 Hazardous
Waste Sites
Higher 1101 Croatan
Highway (us 158)
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Colington Substation 6369859 Tier II Sites Higher 120 Veteran's
Drive
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Woolard Retail Store SW7030520 NPDES Permits Lower 808 S Croatan Hwy Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KILL DEVIL HILLS GAS
HOUSE
00-0-0000021354 UST Permits Higher 801 South Croatan
Hwy
Kill Devil Hills 27948 Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
PWS ID: NC0428030 Page 81 of 251 September 10, 2020
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Dare County North RO plant 6357010 Tier II Sites Higher 600 Mustian St.Kill Devil Hills 27948 Dare
Dare County Colington
Pump Station
6357012 Tier II Sites Higher 600 Mustian St Kill Devil Hills 27948 Dare
Daniel-Gal, LLC SW7061205 NPDES Permits Lower Intersect Of S
Croatan Hwy
Baum St
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
Captain Georges Restaurant
- express
SW7071201 NPDES Permits Lower 705 S Croatan Hwy Kill Devil Hills 27948 Dare
Outer Banks Brewing
Station
SW7981012 NPDES Permits Lower 600 S Croatan Hwy Kill Devil Hl 27948 Dare
R H G Office Building SW7101102 NPDES Permits Lower 700 Bluejay St Kill Devil Hl 27948 Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Pitco 1, LLC - Parking Lot SW7110312 NPDES Permits Lower 407 S Memorial
Ave
Kill Devil Hl 27948 Dare
CIRCLE K 2723854 00-0-0000011535 UST Permits Higher 100 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
COLINGTON ROAD
DAIRY QUEEN
88187 Pollution
Incidents
Higher Collington Rd &
Hwy 158
Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #6
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #6
Unsaturated Zone Score 72.7
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
PWS ID: NC0428030 Page 82 of 251 September 10, 2020
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #7
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
Dare Education Foundation
Teacher Housing
SW7071212 NPDES Permits Lower N Seventh Ave Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Kill Devil Hills Public
Works Complex
SW7041223 NPDES Permits Lower 701 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Colington Substation 6369859 Tier II Sites Higher 120 Veteran's
Drive
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
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PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
Kill Devil Hills Reverse
Osmosis WTP
NC0070157 NPDES Permits Lower 600 Mustan St Kill Devil Hills 279488
459
Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #7
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #7
Unsaturated Zone Score 70.7
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #8
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nature's Walk SW7070519 NPDES Permits Lower 901 Ninth Ave And
600 Corrigan Ave
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Kill Devil Hills Public
Works Complex
SW7041223 NPDES Permits Lower 701 W Ocean Bay
Blvd
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
Colington Substation 6369859 Tier II Sites Higher 120 Veteran's
Drive
Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
First Flight Schools Athletic
Facilities
SW7030708 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
Kill Devil Hills Public
Works - Western Parcel
SW7071002 NPDES Permits Lower Veterans Dr Kill Devil Hills 27948 Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
KDHWWTP WQ0002829 Non-Discharge
Permits
Moderate Dare
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PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
TOWN OF KILL DEVIL
HILLS PUBLIC WORKS
00-0-0000040671 UST Permits Higher 701 Bermuda Bay
Blvd
Kill Devil Hills 27948 Dare
DARE COUNTY PUBLIC
WORKS
88387 Pollution
Incidents
Higher Colington Harbor
Road
Colington
Harbor
27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #8
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #8
Unsaturated Zone Score 65.9
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #9
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Village Realty Guest
Operations Building
SW7070115 NPDES Permits Lower Satterfield Landing
Rd
Nags Head 27959 Dare
Artisan Marble and Tile -
Express
SW7071213 NPDES Permits Lower 2230 W Lark Ave Nags Head 27959 Dare
Carolinian Circle Recreation
Area
SW7030719 NPDES Permits Lower 141 W Carolinian
Cir
Nags Head 27959 Dare
Village Realty Real Estate
Rental Management
SW7000713 NPDES Permits Lower 223 Satterfield
Landing Rd
Nags Head 27959 Dare
Plaza Del Sol Retail
Complex
SW7020716 NPDES Permits Lower 2236 S Croatan
Hwy
Nags Head 27959 Dare
T.W.'s Bait & Tackle SW7051011 NPDES Permits Lower 2230 S Croatan
Hwy
Nags Head 27959 Dare
NAGS HEAD PUBLIC
WORKS DEPT
00-0-0000021320 UST Permits Higher 2200 Lark Avenue Nags Head 27959 Dare
PetSmart SW7111109 NPDES Permits Lower 2210 S Croatan
Hwy Us 158
Nags Head 27959 Dare
Eighth Street Water Plant 6376388 Tier II Sites Higher 2110 Pond Ave Nags Head 27959 Dare
PUGHS CAR CARE
CENTER
NONCD0002344 Inactive
Hazardous Sites
Higher 2209 South
Croatan Highway
Nags Head Dare
HARRELL SIGN
COMPANY
NONCD0001303 Inactive
Hazardous Sites
Higher 512 Pershing Rd Raleigh Wake
Reddy Ice-Kill Devil Hills (
419)
NCGNE0740 NPDES Permits Lower 400 W Eighth St Kill Devil Hl 27948 Dare
Nags Head Self Storage SW7120708 NPDES Permits Lower 209 W Eighth St Nags Head 27959 Dare
STOP QUIK INC 00-0-0000031988 UST Permits Higher 2112 South
Croatan Highway
Nags Head 27959 Dare
Ocean Commerce Park
Addition
SW7130802 NPDES Permits Lower 2004 S Croatan
Hwy
Kill Devil Hl 27948 Dare
Nags Head ABC Store SW7130409 NPDES Permits Lower 2104 S Croatan
Hwy
Nags Head 27959 Dare
RITE AID #11428 NCR000157784 Hazardous
Waste Sites
Higher 2014 South
Croatan Hwy
Kill Devil Hills 27948 Dare
Lake Drive Development -
Lat 84, 86 & 88
SW7151002 NPDES Permits Lower 605 W Lake Dr Kill Devil Hl 27948 Dare
Kill Devil Hills Satellite Fire
Station
SW7080517 NPDES Permits Lower 2011 S Croatan
Hwy
Kill Devil Hills 27948 Dare
Fred Bear Warehouse SW7971110 NPDES Permits Lower Lake Dr Kill Devil Hl 27948 Dare
NCDOT - Ocean Outfall #6
- KDH - CAMA
SW7071207 NPDES Permits Lower Lake Dr Kill Devil Hills 27948 Dare
Ocean Commerce Park - 98
Additions
SW7980429 NPDES Permits Lower 2004 S Croatan
Hwy
Kill Devil Hl 27948 Dare
First Flight Hotel SW7161102 NPDES Permits Lower 2028 S Virginia
Dare Trl
Kill Devil Hl 27948 Dare
Lake Drive Shops SW7160704 NPDES Permits Lower Us 158 W Lk Dr Kill Devil Hl 27948 Dare
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PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Coastal Edge Surf Shop SW7030914 NPDES Permits Lower 1600 S Croatan
Hwy
Kill Devil Hills 27948 Dare
7/11 STORE #19847 38285 Pollution
Incidents
Higher 1610 S. Croatan
Highway
Kill Devil Hills 27948 Dare
Sunsations - Kill Devil Hills SW7030304 NPDES Permits Lower 1508 S Croatan
Hwy
Kill Devil Hills 27948 Dare
MAKIN TRACKS II (THE
PANTRY #872)
11849 Pollution
Incidents
Higher 1400 S. Croatan Dr Kill Devil Hills 27948 Dare
CIRCLE K 2720872 00-0-0000012157 UST Permits Higher 1400 S Croatan
Highway
Kill Devil Hills 27948 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #9
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL #9
Unsaturated Zone Score 74.1
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#15
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Nags Head Church, Inc.SW7050606 NPDES Permits Lower 105 Sound Side Rd Nags Head 27959 Dare
OBX 1 SW7061104 NPDES Permits Lower 3616 Virginia Dare
Trl
Nags Head 27959 Dare
7-ELEVEN, INC. 37316 00-0-0000012444 UST Permits Higher 3643 South
Croatan Highway
Nags Head 27959 Dare
Jockey's Ridge Oyster Sill &
March Habitat Restoration
SW7090108 NPDES Permits Lower 300 W Carolista Dr Nags Head 27959 Dare
Jockey's Ridge Oyster Sill &
March Habitat Restoration
SW7100101 NPDES Permits Lower 300 W Carolista Dr Nags Head 27959 Dare
Town of Nags Head - Water
System Improvements
SW7071021 NPDES Permits Lower Us 158 Nags Head 27959 Dare
Sea Spray Motel Demolition SW7030414 NPDES Permits Lower 3529 Virginia Dare
Trl
Nags Head 27959 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#15
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Lower
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#15
Unsaturated Zone Score 68.3
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
PWS ID: NC0428030 Page 122 of 251 September 10, 2020
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#17
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
East Carolina Radio, Inc.SW7130805 NPDES Permits Lower 2046 Nc 345 Wanchese 27981 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#17
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Lower
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, RO WELL#17
Unsaturated Zone Score 58.5
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #10
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
Roanoke Island Trail -
Skyco Rd - CSI Campus
SW7160509 NPDES Permits Lower 850 Nc 345 Wanchese 27981 Dare
Coastal Studies Institute SW7071108 NPDES Permits Lower Nc 345 Manteo 27954 Dare
Skyco Water Supply Well
No. 14
SW7070512 NPDES Permits Lower Us Hwy 64 Nc 345 Manteo 27954 Dare
SKYCO WATER PLANT 6368711 Tier II Sites Higher 359 Water Plant
Road
Manteo 27954 Dare
Skyco Water Treatment
Plant
SW7160511 NPDES Permits Lower Water Plant Rd Manteo 27954 Dare
Skyco Regional WTP NC0035670 NPDES Permits Lower 359 Water Plant Rd Manteo 27954 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #10
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #10
Unsaturated Zone Score 57.6
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
PWS ID: NC0428030 Page 141 of 251 September 10, 2020
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #11
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
Roanoke Island Trail -
Skyco Rd - CSI Campus
SW7160509 NPDES Permits Lower 850 Nc 345 Wanchese 27981 Dare
Coastal Studies Institute SW7071108 NPDES Permits Lower Nc 345 Manteo 27954 Dare
Skyco Water Supply Well
No. 14
SW7070512 NPDES Permits Lower Us Hwy 64 Nc 345 Manteo 27954 Dare
SKYCO WATER PLANT 6368711 Tier II Sites Higher 359 Water Plant
Road
Manteo 27954 Dare
Skyco Water Treatment
Plant
SW7160511 NPDES Permits Lower Water Plant Rd Manteo 27954 Dare
Skyco Regional WTP NC0035670 NPDES Permits Lower 359 Water Plant Rd Manteo 27954 Dare
CVS PHARMACY #5545 NCR000152660 Hazardous
Waste Sites
Higher 1115 S Hwy 64 Manteo 27954 Dare
Roanoke Island Senior
Center - SW
SW7080618 NPDES Permits Lower 962 Marchall C
Collins Dr
Manteo 27954 Dare
EASTERN
FUELS/EASTERN
SERVICE CENTER
12279 Pollution
Incidents
Higher Us Highway 264
And 64
Manteo 27954 Dare
Dare County -
Multi-purpose Trail
SW7110801 NPDES Permits Lower 954 Marshall C
Collins Dr
Manteo 27954 Dare
DECATUR
PARTNERSHIP SITE
NONCD0001768 Inactive
Hazardous Sites
Higher 1013 Us 264/64 Manteo Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #11
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #11
Unsaturated Zone Score 58.3
Notes:
1. Unsaturated Zone Score for each cell (CS):
PWS ID: NC0428030 Page 151 of 251 September 10, 2020
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
PWS ID: NC0428030 Page 152 of 251 September 10, 2020
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There are no identified PCSs within the assessment area.
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #13
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #13
Unsaturated Zone Score 57.0
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #14
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Skyco Water Supply Well
No. 14
SW7070512 NPDES Permits Lower Us Hwy 64 Nc 345 Manteo 27954 Dare
SKYCO WATER PLANT 6368711 Tier II Sites Higher 359 Water Plant
Road
Manteo 27954 Dare
Skyco Water Treatment
Plant
SW7160511 NPDES Permits Lower Water Plant Rd Manteo 27954 Dare
Skyco Regional WTP NC0035670 NPDES Permits Lower 359 Water Plant Rd Manteo 27954 Dare
CVS PHARMACY #5545 NCR000152660 Hazardous
Waste Sites
Higher 1115 S Hwy 64 Manteo 27954 Dare
Roanoke Island Senior
Center - SW
SW7080618 NPDES Permits Lower 962 Marchall C
Collins Dr
Manteo 27954 Dare
EASTERN
FUELS/EASTERN
SERVICE CENTER
12279 Pollution
Incidents
Higher Us Highway 264
And 64
Manteo 27954 Dare
Dare County -
Multi-purpose Trail
SW7110801 NPDES Permits Lower 954 Marshall C
Collins Dr
Manteo 27954 Dare
DECATUR
PARTNERSHIP SITE
NONCD0001768 Inactive
Hazardous Sites
Higher 1013 Us 264/64 Manteo Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #14
Ground Water Source Characteristics Vulnerability
Aquifer Rating Higher
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Lower
Inherent Vulnerability Rating: Moderate
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #14
Unsaturated Zone Score 57.4
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
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assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #2
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Marc Corbett - Wanchese SW7050824 NPDES Permits Lower E Side Of Nc Hwy
345
Wanchese 27981 Dare
COASTAL ENGINE &
PROPELLER
85219 Pollution
Incidents
Higher Seafood Industrial
Park
Wanchese 27981 Dare
DUCK THRU FOOD
STORE 45
00-0-0000011524 UST Permits Higher 2991 Hwy 345 Wanchese 27981 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #2
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #2
Unsaturated Zone Score 60.9
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #4
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Marc Corbett - Wanchese SW7050824 NPDES Permits Lower E Side Of Nc Hwy
345
Wanchese 27981 Dare
COASTAL ENGINE &
PROPELLER
85219 Pollution
Incidents
Higher Seafood Industrial
Park
Wanchese 27981 Dare
DUCK THRU FOOD
STORE 45
00-0-0000011524 UST Permits Higher 2991 Hwy 345 Wanchese 27981 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #4
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #4
Unsaturated Zone Score 58.7
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #5
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
East Carolina Radio, Inc.SW7130805 NPDES Permits Lower 2046 Nc 345 Wanchese 27981 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #5
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #5
Unsaturated Zone Score 59.9
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #6
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
Roanoke Island Trail -
Skyco Rd - CSI Campus
SW7160509 NPDES Permits Lower 850 Nc 345 Wanchese 27981 Dare
Coastal Studies Institute SW7071108 NPDES Permits Lower Nc 345 Manteo 27954 Dare
SKYCO WATER PLANT 6368711 Tier II Sites Higher 359 Water Plant
Road
Manteo 27954 Dare
Skyco Water Treatment
Plant
SW7160511 NPDES Permits Lower Water Plant Rd Manteo 27954 Dare
Skyco Regional WTP NC0035670 NPDES Permits Lower 359 Water Plant Rd Manteo 27954 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #6
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #6
Unsaturated Zone Score 59.1
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #7
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
East Carolina Radio, Inc.SW7130805 NPDES Permits Lower 2046 Nc 345 Wanchese 27981 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #7
Ground Water Source Characteristics Vulnerability
Aquifer Rating Moderate
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Moderate
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #7
Unsaturated Zone Score 57.8
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #8
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
East Carolina Radio, Inc.SW7130805 NPDES Permits Lower 2046 Nc 345 Wanchese 27981 Dare
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
UNC Coastal Studies
Institute
WQ0034880 Non-Discharge
Permits
Moderate Dare
Roanoke Island Trail -
Skyco Rd - CSI Campus
SW7160509 NPDES Permits Lower 850 Nc 345 Wanchese 27981 Dare
Coastal Studies Institute SW7071108 NPDES Permits Lower Nc 345 Manteo 27954 Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #8
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Moderate
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, SKYCO WELL #8
Unsaturated Zone Score 58.0
Notes:
1. Unsaturated Zone Score for each cell (CS):
CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Table 4. Potential Contaminant Source Attributes
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, WILBUR WELL (12)
PCS Name PCS ID PCS Type PCS Risk
Rating
Street Address City Zip County
Croatan Surf Club - Express SW7070301 NPDES Permits Lower 1319 N Virginia
Dare Trl
Kill Devil Hills 27948 Dare
Lowe's of Kill Devil Hills,
NC (Store #3216)
6392124 Tier II Sites Higher 1500 North
Croatan Highway
Kill Devil Hills 27948 Dare
Lowe's - Kill Devil Hills,
NC
SW7101003 NPDES Permits Lower 1500 N Croatan
Hwy
Kill Devil Hl 27948 Dare
Kill Devil Hills Multi-Use
Path Phase 3 & 4
SW7170610 NPDES Permits Lower Canal Drive W1st
St To Bay Dr Bay
Dr Canal Dr To
Aval
Kill Devil Hl 27948 Dare
Kill Devil Hills Grocery SW7160902 NPDES Permits Lower N Croatan Hwy W
1st St
Kill Devil Hl 27948 Dare
Kill Devil Hills Dune
Restoration Post Isabel
SW7040307 NPDES Permits Lower 1527 N Va Dare
Trl
Kill Devil Hills 27948 Dare
Virginia Dare Trail
Multi-Use Roadway
Widening
SW7040309 NPDES Permits Lower Virginia Dare Trl Kill Devil Hills 27948 Dare
CIRCLE K 2723853 00-0-0000025899 UST Permits Higher 1800 N Croatan
Hwy
Kill Devil Hills 27948-
9486
Dare
R.C. Theatres Complex SW7020806 NPDES Permits Lower 1803 N Croatan
Hwy
Kill Devil Hills 27948 Dare
SPEEDWAY #8199 00-0-0000035384 UST Permits Higher 1822 N Croatan
Hwy
Kill Devil Hills 27948-
9486
Dare
Table 5. Inherent Vulnerability Rating
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, WILBUR WELL (12)
Ground Water Source Characteristics Vulnerability
Aquifer Rating Lower
Unsaturated Zone Rating Higher
Well Integrity/Construction Rating Higher
Inherent Vulnerability Rating: Lower
Table 6. Unsaturated Zone Rating Calculation
DARE COUNTY WATER SYSTEM
PWS ID: NC0428030, WILBUR WELL (12)
Unsaturated Zone Score 78.5
Notes:
1. Unsaturated Zone Score for each cell (CS):
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CS = [3 x (vertical hydraulic conductance score)] + [2 x (land surface slope score)] + [3 x (land use score)] + [2 x (land cover score)]
2. Unsaturated Zone Score (S) for the entire assessment area is the mean of the cell scores (CS) calculated as:
The sum of all cell unsaturated zone scores (CS) divided by the number of cells (N) within the
assessment area: S = (ΣCS) / N
3. The USGS publication "Methods of ranking unsaturated zone and watershed characteristics of public water supplies
in North Carolina", by J. L. Eimers, J. C. Weaver, S. Terziotti, and R. W. Midgette, 1999, provides a detailed discussion
of the methods used to determine unsaturated zone ratings.
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Section 6: North Carolina's SWAP Approach
This section of the report is a more detailed description of North Carolina's SWAP approach. This is a summary of
Chapter 2 of North Carolina's Source Water Assessment Program Plan.
Description of North Carolina's SWAP Approach
To meet the requirements of the 1996 SDWA Amendments, a Source Water Assessment was completed for
approximately 8,000 drinking water sources in North Carolina. A delineated area for assessment was established for
each drinking water source. An inventory of potential contaminant sources was conducted in each assessment area and
finally, a susceptibility rating was assigned to each drinking water source. Because of the scope of this task and the
limited time and resources available for completing the work, North Carolina's SWAP program efforts relies on
Geographic Information Systems (GIS) to effectively use information. GIS allows databases to be linked to points on a
map (e.g., public water supply sources, streams, geology, land use, roads, permitted waste disposal sites, Superfund
sites, etc.) and overlaid on top of one another.
Delineation of Assessment Areas for Surface Water Sources
For the purpose of performing source water assessments, "delineation" means defining what land area constitutes the
area contributing water to a public water supply source. The delineation of the source water assessment areas for
surface water sources was done in consideration and collaboration with the Water Supply Watershed Protection
(WSWP) Program. During the development of the WSWP program (final state rules adopted in 1992), the state worked
with local governments to determine the location of all surface water sources and existing land uses within the water
supply watersheds. This information, in conjunction with information on the types and location of wastewater
discharges, was used to determine the appropriate Water Supply Watershed Classification for more than 200 surface
water sources in the state. The watershed classifications, WS-I, WS-II, WS-III, WS-IV, and WS-V are based on the size
of the watershed, development activities, and allowable waste treatment and disposal practices.
All surface water sources were located on US Geological Survey 1:24,000 scale topographic maps. The water supply
watershed boundaries were delineated (except WS-V waters, which were delineated for the SWAP assessments by the
PWS Section), and the boundaries of the Critical Area, and in the case of most WS-IV water supply watersheds
Protected Areas (described below) were delineated.
For protection of the surface water sources in North Carolina, a segmentation of the water supply watersheds was
implemented through the WSWP rules. The entire drainage areas of WS-I water supply watersheds were delineated.
These watersheds are all publicly owned and no new development is allowed in these watersheds. These watersheds are
very small. Some are located within National Forests. Others are owned by a local government.
All WS-II, WS-III and WS-IV water supplies require delineation of a Critical Area which is defined as the area within
1/2 mile and draining to the normal pool elevation of a water supply reservoir, or 1/2 mile and draining to a water
supply intake in a river. For WS-II and WS-III water supplies, the remainder of the drainage area is subject to the
development standards of the WSWP rules and are implemented through local land use ordinances. WS-IV water
supplies, which are typically portions of major river systems, are segmented in a Critical Area (previously defined) and
a Protected Area. The Protected Area is defined as the area within 5 miles and draining to the normal pool elevation of a
reservoir or 10 miles upstream and draining to a river intake. In very few instances the WS-IV Protected Area
encompasses the entire drainage area due to the size of the watershed. In 1995, the state allowed local governments to
request that the 10 mile Protected Area boundary of a WS-IV water supply be measured "run of river" rather than using
a 10-mile arc linear measurement. Surface waters that are used by industry to supply their employees with drinking
water or waters formerly used as water supply are generally classified as WS-V. The WS-V waters are protected as
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water supplies and are typically located upstream of and draining to Class WS-IV waters. Land use restrictions do not
apply to WS-V waters under the WSWP rules.
Please note that for the purpose of the PWS Section's Source Water Assessments, delineation of WS-IV boundaries may
be different from the WSWP Program's delineation. The PWS Section watershed assessment areas include all land
draining to a drinking water source. However, the watersheds defined in accordance with the WSWP rules often
exclude land area draining to a source based on municipal or county jurisdictional boundaries. Please refer to the
WSWP program website for information on the regulations associated with their program and the land area affected by
their regulations.
Delineation of Assessment Areas for Public Water Supply Wells
The delineation of source water assessment areas for wells was in accordance with North Carolina's EPA approved
Wellhead Protection Program. The calculated fixed radius method was used to delineate assessment areas around each
well in the following areas: piedmont and mountains; the unconfined surficial aquifer of the coastal plain; and in the
semi-confined portions of the Castle Hayne aquifer with an estimated recharge rate of 250,000 gallons per day per
square mile. The aquifer-source-volume method was used for confined aquifers of the coastal plain. These methods are
described below. Well depth is the determining factor for a well to be considered confined. Well depths greater than 70
feet are considered confined.
Other assessment area delineation methods may be of interest to a PWS system in an effort to more accurately define
the area contributing water to the well. The state will review delineations provided by any PWS system that employs
acceptable alternative delineation methods. Resulting alternative delineation areas will be incorporated into the SWAP
if the state concludes that the use of the more sophisticated method is appropriate.
Calculation of the Contributing Area
The first step in delineating the assessment areas is to determine the size of the contributing area to the well. When a
well is pumped, it causes groundwater that is flowing through the subsurface to flow toward the well. The surface area
surrounding a well that delineates the area in which water entering the groundwater system at the water table eventually
flows to the well and discharges is known as the contributing area for the well. In this area, any contaminants released
to the environment that reach the water table, can reasonably be expected to move toward and possibly reach the well.
The calculated fixed radius method requires the pumping rate (Q) and the recharge rate (W) for the pumping well in
order to calculate the size of the contributing area. The contributing area is calculated as follows:
where:
Ac = contributing area in square miles,
Q = maximum daily pumping rate in gallons per day, and
W = average recharge rate in gallons per day per square mile.
The maximum daily pumping rate in gallons per day was determined from information on wells obtained from PWS
Section sanitary survey inspection forms, Division of Water Resources Local Water Supply plans, and information
supplied by system owners/operators. Where no information was available, an estimate of maximum daily pumping rate
was assigned based on hydrogeologic characteristics of the aquifer supplying water to the well.
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Size of the Assessment Area for Wells Using Calculated Fixed Radius Method
Estimates of the size of the contributing area can be obtained using the equation given above. However, because of the
complex nature of groundwater flow and contaminant transport, it is not possible to define exact contributing area
boundaries around each well. Two factors that affect the shape of the contributing area and its position and orientation
with respect to a pumping well are the hydraulic gradient and aquifer transmissivity. The variation in aquifer
transmissivity is important in determining the shape of the contributing area for a supply well. In areas where the
hydraulic gradient and the aquifer transmissivity are essentially the same in all directions, the shape of the contributing
area depends primarily on the hydraulic gradient. Where the water table is nearly flat, as near the water-table divide in
broad interstream areas of low relief, the contributing area is approximately circular. Where the hydraulic gradient is
moderate to steep, the contributing area is approximately elliptical, being oriented in the direction of groundwater
movement.
Due to limited availability of information on both hydraulic gradient and aquifer transmissivity, the assessment area for
each well was doubled. Therefore, the assessment area for each well is twice the size of the calculated contributing area
or:
Delineation of Assessment Areas for Wells in Confined Aquifers
Recharge to confined aquifers is much less than that to the surficial unconfined aquifer where the calculated fixed
radius method was used. If the calculated fixed radius method were applied to wells withdrawing water from confined
aquifers, the resulting assessment areas would be very large. With the exception of a portion of the Castle Hayne
aquifer, the aquifer-source-volume method was used for delineating assessment areas for wells determined to be
withdrawing water from highly confined and semi-confined aquifers. "Aquifer source volume" refers to the volume of
the source aquifer that supplies the withdrawals from a well for a specified period of time. This factor has been adopted
in many states for defining assessment areas for confined aquifers.
For the purpose of these assessments, the volume of aquifer that supplies ten years of withdrawals (i.e. the area
surrounding a well in which the time of travel to the well is ten years) was used. A ten-year period should be sufficient
to provide time to assess the potential impact of any groundwater contamination discovered within an assessment area
and for developing appropriate remediation and source water protection strategies for the water supply. For any well in
the coastal plain determined to be withdrawing water from a confined aquifer, the table below will be used to determine
the size of the assessment area.
Table 1. Radii of Assessment Areas for Wells Withdrawing from Confined Aquifers in the Coastal Plain
Pumping Rate of Well (Gal. / min.)Radius of Assessment Area (Feet Rounded)
50 1000
100 1000
200 1500
500 2000
1000 3000
2000 3500
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Delineation of Assessment Areas for Water Supply Sources Classified as GWUDIs
Drinking water supplied by a well may include a surface water component. This is defined as Ground Water Under the
Direct Influence of Surface Water (GWUDIs). This term is used to indicate that water withdrawn from a well contains a
specific indicator or indicators (e.g., giardia) of the presence of a surface water component. The delineated area for a
PWS well classified as a GWUDI well will be the combined area of a circle based on the calculated fixed radius method
and the resulting upgradient watershed of the intersected surface water. Segmentation of the resulting watersheds was in
accordance with the most appropriate water supply watershed classification scheme.
Delineation for Water Supply Sources Classified as Springs
Springs can be defined as areas where the water table intersects the ground surface. Ground water may have flowed
many miles before appearing on the surface to form a particular spring. The delineated area for a drinking water source
classified as a spring was defined as the entire watershed area upgradient of the spring. Segmentation of the resulting
watersheds was in accordance with the most appropriate water supply watershed classification scheme.
Susceptibility Rating Methodology
The state determined that the overall susceptibility rating for each drinking water source should be based on two key
components, a contaminant rating and an inherent vulnerability rating. Inherent vulnerability refers to the physical
characteristics and existing conditions of the watershed or aquifer. A contaminant rating refers to an evaluation of the
number and location of potential sources of contamination. The contaminant rating and inherent vulnerability
methodologies are explained below.
Contaminant Rating Methodology
The contaminant rating for each water supply source was determined based on the number and location of potential
contaminant sources (PCSs) within the delineated area. The delineated area for the drinking water source encompasses
the area where PCSs, if released to the environment, could reasonably be expected to be a risk or a potential for
contamination of the drinking water supply. A PCS in this assessment report is a facility or site regulated under a state
or federal regulatory program. These facilities are identified in electronic databases that contain location information for
each facility. Only databases that include information statewide were used for this source water assessment. Each PCS
identified within the delineated area was assigned a risk rating of higher, moderate or lower. The number of PCSs that
occur within the delineated area was determined and a Contaminant Rating of higher, moderate or lower was assigned
to each drinking water source.
Contaminant Rating for Ground Water Sources
For each ground water source, define an inner Zone A with an area equal to half the area of the delineated assessment
area. Using Table 2, determine the number of PCSs that occur within each risk category according to their location,
either in Zone A or in the remaining delineated area. Determine the Contaminant Rating of higher, moderate or lower
for each well by adding the totals for each risk category.
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Table 2. Determination of Contaminant Rating for Ground Water Sources
Potential Contaminant
Sources in:
Number of Higher Risk
PCSs
Cumulative Number of Higher and
Moderate Risk PCSs
Cumulative Number of Higher,
Moderate and Lower Risk PCSs
Zone A
(the inner 1/2 of the
delineated area)
(Number of sources) > 1
Score: (1 or 0)
(Number of sources) > 2
Score: (1 or 0)
(Number of sources) > 4
Score: (1 or 0)
Delineated Area
(Zone A plus the remaining
delineated area)
(Number of sources) > 2
Score: (1 or 0)
(Number of sources) > 4
Score: (1 or 0)
(Number of sources) > 8
Score: (1 or 0)
For each category, score "1" if the number of contaminants exceeds the indicated threshold, or score "0" if the number
of contaminants is less than the threshold. Total all the scores (1 or 0) for each category. Therefore, the highest possible
score is 6.
Determine the Contaminant Rating for each well as follows:
Higher (6 - 4)
Moderate (3 - 2)
Lower (< 1)
Contaminant Rating for Surface Water Sources
Because the WSWP rules prohibit development in these watersheds, the existence of one PCS in the delineated area of a
drinking water source located in a WS-I watershed will result in a contaminant rating of higher.
Using Table 3 for WS-II and WS-III watersheds, or Table 4 for WS-IV and V watersheds, determine the number of
PCSs that occur within each risk category (i.e., lower, moderate or higher risk) and within each delineated assessment
area (e.g., critical area, protected area, etc). Determine the Contaminant Rating for each surface water PWS source by
summing the totals for each risk category.
Table 3. Determination of Contaminant Rating for Surface Water Sources in WS - II or III Watersheds
Potential Contaminant
Sources in:
Number of Higher Risk
PCSs
Cumulative Number of Higher and
Moderate Risk PCSs
Cumulative Number of Higher,
Moderate and Lower Risk PCSs
Critical Area (Number of sources) > 1
Score: (1 or 0)
(Number of sources) > 5
Score: (1 or 0)
(Number of sources) > 10
Score: (1 or 0)
Watershed Area
Within 1000 Foot
Stream Zone
(Number of sources) > 5
Score: (1 or 0)
(Number of sources) > 10
Score: (1 or 0)
(Number of sources) > 20
Score: (1 or 0)
Watershed Area
Outside Stream Zone
(Number of sources) > 20
Score: (1 or 0)
(Number of sources) > 40
Score: (1 or 0)
(Number of sources) > 80
Score: (1 or 0)
For each category, score "1" if the number of contaminants exceeds the indicated threshold, or score "0" if the number
of contaminants is less than the threshold. Total the scores (1 or 0 for each category). Therefore, the highest possible
score is a 9.
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Determine the Contaminant Rating for each surface water source in a Water Supply Watershed II or III as follows:
Higher (9 - 6)
Moderate (5 - 3)
Lower (<= 2)
Table 4. Determination of Contaminant Rating for Surface Water Sources in WS - IV and V Watersheds
Potential Contaminant
Sources in:
Number of Higher Risk
PCSs
Cumulative Number of Higher and
Moderate Risk PCSs
Cumulative Number of Higher,
Moderate and Lower Risk PCSs
Critical Area (Number of sources) > 1
Score: (1 or 0)
(Number of sources) > 5
Score: (1 or 0)
(Number of sources) > 10
Score: (1 or 0)
Protected Area
Within 1000 Foot
Stream Zone
(Number of sources) > 5
Score: (1 or 0)
(Number of sources) > 10
Score: (1 or 0)
(Number of sources) > 20
Score: (1 or 0)
Protected Area
Outside Stream Zone
(Number of sources) > 20
Score: (1 or 0)
(Number of sources) > 40
Score: (1 or 0)
(Number of sources) > 80
Score: (1 or 0)
Stream Zone from Protected
Area to 25 Mile or
Watershed Boundary
(Number of sources) > 20
Score: (1 or 0)
(Number of sources) > 40
Score: (1 or 0)
(Number of sources) > 80
Score: (1 or 0)
For each category, score "1" if the number of contaminants exceeds the indicated threshold, or score "0" if the number
of contaminants is less than the threshold. Total the scores (1 or 0 for each category). Therefore, the highest possible
score is a 12.
Determine the Contaminant Rating for each surface water source in a Water Supply Watershed IV or V as follows:
Higher (12 - 9)
Moderate (8 - 4)
Lower (<= 3)
Inherent Vulnerability Rating Methodology
The inherent vulnerability of a well or surface water source refers to the characteristics or existing conditions of the
well or surface water source and its delineated assessment area. Several factors were evaluated for both groundwater
and surface water sources and included in the inherent vulnerability rating of each public water supply source. Each
drinking water source was assigned an inherent vulnerability rating of higher, moderate or lower.
Inherent Vulnerability Rating for Wells
The characteristics included for assigning an inherent vulnerability rating for wells are aquifer rating, unsaturated zone
rating and well integrity/well construction rating. The aquifer rating is an assessment of the water transmitting
characteristics of the aquifer. The unsaturated zone rating is an assessment of the likelihood that contaminants from
surface and shallow sources will follow the path of aquifer recharge and reach the water table. The well
integrity/construction rating is an assessment of the quality of the construction of the well. A brief description of each
factor follows:
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Aquifer Rating
The aquifer rating is a qualitative assessment of the water transmitting characteristics of the aquifer. Relative
differences in aquifer vulnerability were based on a review of relevant literature, expert opinions, and confirmed with
historical data. Factors considered in rating aquifer vulnerability include hydraulic conductivity, degree of confinement,
dilution, and sorption potential. The attenuative capacity of the unsaturated zone is not considered in the determination
of aquifer ratings. Table 5 summarizes the aquifer-rating scheme used for these assessments.
Well depths determined whether a well was considered unconfined, deep confined or shallow confined for these
assessments. Wells less than or equal to 70 feet deep were considered to be withdrawing water from an unconfined or
surficial aquifer. Wells greater than 70 feet but less than 180 feet deep were considered to be withdrawing water from a
shallow confined aquifer. Wells greater than 180 feet deep were considered to be withdrawing water from a deep
confined aquifer.
Table 5. Aquifer Rating Based on Water Transmitting Characteristics
Aquifer/Ground Water Source Rating
Coastal Plain Aquifers:
Deep Confined (e.g., Kinston area)Lower
Shallow Confined (e.g., Pamlico Co.)Moderate
Unconfined (e.g., Castle Hayne Outcrop area)Higher
Piedmont and Mountain Aquifers:
Triassic Basins (e.g., Sanford-Durham)Moderate
Fractured Rock Aquifers Higher
Other:
Metamudstones and Meta-argillites of the Carolina Slate Belt Higher
Areas with Wells Cased to Less Than 20 Feet Higher
Groundwater under the Direct Influence of Surface Water Higher
Sand Hills Area Higher
Unsaturated Zone Rating
The state, in cooperation with the United States Geological Survey (USGS), developed the unsaturated zone rating
methodology. The USGS Water-Resources Investigations Report 99-4283, "Methods of Rating Unsaturated Zone and
Watershed Characteristics of Public Water Supplies in North Carolina" describes the methodology. The unsaturated
zone rating is the combination of selected factors that contribute to the likelihood that contaminants from surface and
shallow sources will follow the path of aquifer recharge and reach the water table. Contributing factors, in the form of
GIS spatial data layers, include land use/land cover, vertical hydraulic conductance of the unsaturated zone, and
land-surface slope. Vertical hydraulic conductance measures the capacity of the unsaturated zone to transmit water from
land surface to water table. Land-surface slope and land cover influences the amount of precipitation that infiltrates into
the subsurface. Land use describes the activities that take place on the surface or in the shallow subsurface and the type
of contaminants that may be present as a result of those activities (i.e., "non-point source" potential contaminant
sources).
Well Integrity/Construction Rating
The integrity of well construction can vary widely, depending on details such as casing depth, grouting depth, well
materials and driller knowledge. However, these details are not always available for assigning SWAP assessment
ratings. In 1994 and 1999 there were important rule changes that greatly improve the quality of the well construction
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standards. Therefore, the SWAP assessments use well construction and approval dates as a surrogate to construction
details to assign a well construction / integrity rating. For wells that construction and approval date is not available, the
well construction/integrity rating defaults to Higher.
Table 6 summarizes the characteristics evaluated and rated for the inherent vulnerability for each PWS well. Each well
was assigned an inherent vulnerability rating of higher, moderate or lower:
Table 6. Inherent Vulnerability Rating of Wells
Inherent Vulnerability Factors Higher Vulnerability Moderate Vulnerability Lower Vulnerability
Aquifer Rating 10 5 -1
Unsaturated Zone Rating 10 5 1
Well Integrity/Construction Rating 5 3 1
Totals 25-18 17-15 14-1
Inherent Vulnerability Rating for Surface Water Sources
The inherent vulnerability of a surface water source refers to the characteristics and existing conditions of the source
and the delineated assessment area (watershed). The characteristics included for assigning an inherent vulnerability
rating are water supply watershed classification, surface water source location, raw water quality, and the watershed
characteristics rating. The watershed classification is based on the size of the watershed, development activities, and
allowable waste treatment and disposal practices. The surface water sources were characterized based on whether they
are located in streams, large multi-purpose reservoirs, or small water supply reservoirs. The raw water quality rating is
based on recorded turbidity and total coliform values over a twelve month period. The watershed characteristics rating
is an assessment of the likelihood that contaminants will follow the path of overland flow or shallow subsurface flow to
a surface water source. A description of each factor follows:
Watershed Classification
In North Carolina, all surface water sources are located in water supply watersheds that are classified as either WS-I, II,
III, IV, or V. The Water Supply Watershed Protection rules required that all local governments having land use
jurisdiction within water supply watersheds adopt and implement water supply watershed protection ordinances, maps
and a management plan. All of these ordinances are in place and have been deemed to be in compliance with the
statutory requirements. The inherent vulnerability ratings for watershed classification are based on differences between
watershed classes, including size of the watershed, development activities, and allowable waste treatment and disposal
practices.
Surface Water Source Location
All surface water sources are located in streams, large multi-purpose reservoirs (Class 3), or small water supply
reservoirs (Class 1 or 2). The inherent vulnerability ratings for surface water source location are based on differences
between the reaction time for a water plant in the case of a contamination event or spill in a stream versus a reservoir
and includes the allowable activities on surface water reservoirs (i.e., single use versus multiple uses allowed).
Raw Water Quality
The likelihood of the presence of Cryptosporidium and other water-borne microorganisms increases when turbidity is
high. Therefore, turbidity and total coliform bacteria are good indicators of raw water quality. The Area Wide
Optimization Program (AWOP) within the PWS Section has developed a ranking system for surface water treatment
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plants based primarily on these two parameters. This ranking system, with some minor modifications, has been adopted
by SWAP in order to assign a raw water quality rating to each surface water source.
The AWOP ranking system is based on the treatment plant's raw, settled and finished water turbidity and coliform
levels along with violations of MCLs and treatment techniques. Raw, settled and finished water samples are collected
daily and compiled in a monthly report, commonly referred to as a MOR (monthly operating report). The AWOP
ranking system first totals the number of months in a year that specific levels of turbidity and coliform are exceeded
and/or the number of months certain violations occur. The monthly totals are then multiplied by a weighting factor to
balance the relative importance of these parameters. These numbers are then totaled for the year and are considered the
water treatment plant's total score.
Because the purpose of SWAP is to assess sources of drinking water supply and not how well water plants treat their
water, SWAP only uses the raw water scores for turbidity and coliform from the AWOP ranking system. The total raw
water quality scores were divided into three categories of vulnerability: Higher, Moderate and Lower. The AWOP
ranking system is for surface water treatment plants and not individual surface water sources. Therefore, in the case
where more than one source is used by a treatment plant, the plant's raw water quality rating was initially assigned to all
of the plant's sources. Upon review by the regional office staff some of the ratings were then adjusted based on their
extensive knowledge of the surface water sources in their area.
Watershed Characteristics Rating
The state determined the watershed characteristics ratings of each surface water source in cooperation with the USGS.
The USGS Water-Resources Investigations Report 99-4283, "Methods of Rating Unsaturated Zone and Watershed
Characteristics of Public Water Supplies in North Carolina" describes this methodology. The watershed characteristics
ratings were based on the combination of selected factors that may contribute to the likelihood that contaminants follow
the path of overland flow and reach the surface water source. Contributing factors, in the form of GIS spatial data
layers, include average annual precipitation, land cover, land use, land-surface slope and groundwater contribution.
Precipitation is the source of water transported overland to a stream or lake. Land-surface slope and land cover
influence the amount of precipitation that infiltrates into the subsurface. Land use describes the activities that take place
on the surface or in the shallow subsurface and the type of contaminants that may be present as a result of those
activities (i.e., non-point source potential contaminant sources). Ground-water contribution is the effect of ground water
on surface-water quantity and quality. For these assessments the ground-water contribution is derived from the
unsaturated zone rating described in the ground water inherent vulnerability section of this report. Table 7 includes the
characteristics that were evaluated and rated for the inherent vulnerability for each surface water source:
Table 7. Inherent Vulnerability of Surface Water Sources
Surface Water Source Characteristics Higher Vulnerability Moderate Vulnerability Lower Vulnerability
Watershed Classification WS-IV, WS-V
10
WS-III, WS-II
5
WS-I
1
Intake Location Direct Stream
8
Class 3 Reservoirs
4
Class 1 and 2 Reservoirs
2
Raw Water Quality (water plant data)5 3 1
Watershed Characteristics Rating 10 5 1
Totals 33 - 21 20 - 13 12 - 5
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Susceptibility Rating Methodology
The state assigned a susceptibility rating for each drinking water source that was based on two components, a
contaminant rating and an inherent vulnerability rating. Using the results of the evaluations of contaminant rating and
inherent vulnerability rating for each public drinking water source, a susceptibility rating of higher, moderate or lower
was assigned to each source according to the table below:
Table 8. Susceptibility Rating for Public Water Supply Sources by
Combining the Inherent Vulnerability and Contaminant Ratings
Inherent Vulnerability Rating
Contaminant Rating Higher Moderate Lower
Higher H H M
Moderate H M M
Lower M M L
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