WA-27119_38285_CA_RPTS_20160201_MRP

Environment Submitted to 7-Eleven, Inc. 3200 Hackberry Rd, Loc. 148 Irving, TX 75063
Prepared by AECOM Raleigh, NC 60338486 February 2016

Groundwater Monitoring Report

7-Eleven Store No. 19847
1610 South Croatan Highway
Kill Devil Hills, North Carolina
Incident # 38285
Environment Submitted to 7-Eleven, Inc. 3200 Hackberry Rd, Loc. 148 Irving, TX 75063
Prepared by AECOM Raleigh, NC 60338486 February 2016

Groundwater Monitoring Report

_________________________________
Prepared By Nathan Pinkser

_________________________________
Reviewed By Michelle Friedman, P.G.

_________________________________
Reviewed By Marie Treiber

7-Eleven Store No. 19847
1610 South Croatan Highway
Kill Devil Hills, North Carolina
Incident # 38285
AECOM Environment i

7-Eleven #19847 Groundwater Monitoring Report February 2016

Executive Summary ............................................................................................................................................................. ES-1
1 Introduction ......................................................................................................................................................................... 1-1
2 Site Information ................................................................................................................................................................... 2-1
2.1 Site Identification .......................................................................................................................................................... 2-1
2.2 Contact Information ...................................................................................................................................................... 2-1
2.3 Information about the Release ..................................................................................................................................... 2-1
3 Site History and Characterization ...................................................................................................................................... 3-1
3.1 Underground Storage Tank Systems ........................................................................................................................... 3-1
3.2 Aboveground Storage Tank Systems ........................................................................................................................... 3-1
3.3 Historical Release Information ...................................................................................................................................... 3-1
3.4 Site Characteristics and Land Use ............................................................................................................................... 3-1
3.5 Site Geology and Hydrogeology ................................................................................................................................... 3-2
3.6 Current Status of Remediation ..................................................................................................................................... 3-2
4 Field Activities ..................................................................................................................................................................... 4-1
4.1 Groundwater Sampling ................................................................................................................................................. 4-1
4.2 Water Supply Well Sampling ........................................................................................................................................ 4-1
5 Results ................................................................................................................................................................................. 5-1
5.1 Gauging Results ........................................................................................................................................................... 5-1
5.2 Groundwater Sampling Results .................................................................................................................................... 5-1
5.3 Groundwater Concentration Trends ............................................................................................................................. 5-1
5.4 Private Water Well Sampling Results ........................................................................................................................... 5-1
5.5 Soil Sampling Results .................................................................................................................................................. 5-2
6 Conclusions and Recommendations ................................................................................................................................ 6-1
7 References ........................................................................................................................................................................... 7-1

List of Appendices
Appendix A. Notice of Regulatory Requirements
Appendix B. Laboratory Analytical Results
Appendix C. MW-3/MW-3R and MW-5 Trend Graphs

Table of Contents
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7-Eleven #19847 Groundwater Monitoring Report February 2016

List of Tables
Table 3-1. (Reporting Table B-2) Site History – UST Owner/Operator and Other Responsible party Information
Table 3-2. (Reporting Table B-1) Site History – UST/AST System and Other Release Information
Table 3-3. (Reporting Table B-5) Public and Private Water Supply Wells and Other Receptor Information
Table 4-1. (Reporting Table B-7) Monitoring and Remediation Well Construction Information
Table 5-1. (Reporting Table B-4) Summary of Groundwater Sampling Results
Table 5-2. (Reporting Table B-3) Summary of Soil Sampling Results

List of Figures
Figure 1-1. Site Location Map
Figure 1-2. Site Map
Figure 3-1. Private Well Location Map
Figure 5-1. Groundwater Elevation Map, January 2016
Figure 5-2. Dissolved Benzene Isoconcentration Map, January 2016
Figure 5-3. Dissolved Xylene Isoconcentration Map, January 2016
Figure 5-4. Dissolved Naphthalene Isoconcentration Map, January 2016
Figure 5-5. Dissolved n-Propylbenzene Isoconcentration Map, January 2016

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7-Eleven #19847 Groundwater Monitoring Report February 2016

List of Acronyms
2L Standard Title 15A North Carolina Administrative Code 2L Groundwater Standard
AECOM AECOM Technical Services of North Carolina, Inc.
AST aboveground storage tanks
bgs below ground surface
CSA Comprehensive Site Assessment
EPA United States Environmental Protection Agency
ft/ft feet per foot
GPS global positioning system
NC North Carolina
NCDEQ North Carolina Department of Environmental Quality
Site 7-Eleven Store No. 19847
Test America Test America Laboratories, Inc.
TN Tennessee
TX Texas
USCS Unified Soil Classification System
UST underground storage tank
VOCs volatile organic compounds
VPH volatile petroleum hydrocarbon
µg/L micrograms per liter

AECOM Environment ES-1

7-Eleven #19847 Groundwater Monitoring Report February 2016

As required by the North Carolina Department of Environmental Quality in correspondence dated September 25, 2015,
AECOM Technical Services of North Carolina, Inc. (AECOM) prepared this Groundwater Monitoring Report for activities
conducted at the 7-Eleven Store No. 19847 (Site), located at 1610 South Croatan Highway, Kill Devil Hills, North Carolina.
The Site has been classified as high risk due to the presence of nearby irrigation wells. The Site is currently used as a 7-
Eleven convenience store only; site underground storage tanks (USTs) were removed in February 2013.
On January 14, 2016, ten (MW-2R, MW-3R, MW-4 to MW-10, and DW-1) on- and off-site monitoring wells were sampled.
Groundwater samples were analyzed for volatile organic compounds (VOCs).
During sampling, five VOCs were detected above their respective Title 15A North Carolina Administrative Code 2L
Groundwater Standards (2L Standards) in wells MW-3, MW-5, and/or MW-10: benzene, naphthalene, isopropylbenzene, n-
propylbenzene, and total xylenes. No other compounds exceeded the 2L Standards during the January 2016 sampling event.
Groundwater concentrations of VOC compounds in wells MW-3 and MW-5 have remained stable with a decreasing trend
through the January 2016 sampling event. Since August 2012, prior to the removal of the site USTs, concentrations of
benzene, naphthalene, toluene, 1,2,4-trimethylbenzene and total xylenes in MW-3 have decreased by more than an order of
magnitude.
The groundwater flow direction during the January 16, 2016 event was to the east, with a gradient of approximately 0.003 feet
per foot. This is consistent with historical observations of site groundwater flow.
AECOM attempted to contact two nearby property owners to sample their irrigation wells. AECOM was unable to successfully
contact the property owner at 1617 Wrightsville Avenue or 1620 South Memorial Boulevard. Historically, the property owner at
1617 Wrightsville Avenue refused access.
Based on the VOC concentrations detected in off-site monitoring well MW-10, AECOM recommends continued semi-annual
sampling.

Executive Summary
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7-Eleven #19847 Groundwater Monitoring Report February 2016

As required by the North Carolina Departmental of Environmental Quality (NCDEQ) in correspondence dated September 25,
2015 (also included in Appendix A), AECOM Technical Services of North Carolina, Inc. (AECOM) conducted a site-wide
groundwater monitoring event at the 7-Eleven Store No. 19847 (Site), located at 1610 S. Croatan Highway, Kill Devil Hills,
North Carolina (NC) (Figure 1-1 and Figure 1-2). A release was discovered during the in-place abandonment of underground
storage tank (UST) #2 on April 10, 2012 (AECOM, 2012a). An Initial Abatement Action Report (AECOM, 2012b), a Limited
Site Assessment (AECOM, 2012c), a UST closure report (AECOM, 2013a), and a Comprehensive Site Assessment (CSA)
(AECOM, 2013b) have been completed at the Site.

1 Introduction
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7-Eleven #19847 Groundwater Monitoring Report February 2016

The following sections provide site background and contact information.
2.1 Site Identification
− Date of Incident Report: April 11, 2012
− Facility ID: 0-011788 Incident Number: 38285 Site Risk Classification: High
− Site Rank: H 162 D
− Site Name: 7-Eleven Store No. 19847
− Site Street Address: 1610 South Croatan Highway (Note: the Site is identified as 1601 South Croatan Highway in the
Dare County geographic information system mapper, available online at
http://daregis.darenc.com/website/dare/viewer.htm.)
− City/Town: Kill Devil Hills Zip Code: 27948 County: Dare
− Description of Geographical Data Point (e.g., dispenser): UST fill port
− Location Method (global positioning system [GPS], topographical map, other): GPS
− Latitude (decimal degrees): 35.9986° Longitude (decimal degrees): 75.6513°
2.2 Contact Information
− UST Owner: 7-Eleven, Inc.; Address: 1722 Routh Street, Dallas, Texas (TX); Telephone: [phone]
− UST Operator: 7-Eleven, Inc.; Address: 1610 South Croatan Highway, Kill Devil Hills, NC; Telephone: [phone]
− Property Owner: 7-Eleven, Inc. Employees’ Trust, c/o Evercore Trust Company; Address: 601 South Figueroa Street,
44th Floor, Los Angeles, California 90017; Telephone: [phone]
− Property Occupant: 7-Eleven,Inc.; Address: 1722 Routh Street, Dallas, TX; Telephone: [phone]
− Consultant/Contractor: AECOM; Address: 1600 Perimeter Park Drive, Suite 400, Raleigh NC 27560;
Telephone: [phone]
− Analytical Laboratory: Test America Laboratories, Inc. (Test America), State Certification No. 387; Address: 2960 Foster
Creighton Drive, Nashville, Tennessee (TN) 37204; Telephone: [phone]
2.3 Information about the Release
After removing UST #2 from service in May 2011 due to false leak detection warnings, 7-Eleven decided to abandon it in
place. On April 10, 2012, strong petroleum odors were observed during the installation of two soil borings, one of which was
converted into a groundwater monitoring well. A suspected release was reported to NCDEQ on April 11, 2012. The release
was confirmed with the receipt of analytical data, received April 18, 2012.
In February 2013, the three USTs were removed, including UST #2. Petroleum odors and soil staining were observed, and a
sheen of non-aqueous phase liquid was observed in the tank field following the removal of the USTs. Pinhole leaks were
observed in the walls of the fiberglass USTs.

2 Site Information
AECOM Environment 3-1

7-Eleven #19847 Groundwater Monitoring Report February 2016

The following sections provide information on the USTs operated at the Site and follows the general outline established in
Guidelines for Assessment and Corrective Action for UST Releases.
3.1 Underground Storage Tank Systems
UST owner operator and other responsible party information are provided in Table 3-1. A summary of current and former
USTs maintained at the Site is provided below and summarized in Table 3-2.
Three 10,000-gallon USTs were installed on-site in 1985. UST #2 was removed from service in May 2011 due to false leak
detection warnings, and was abandoned in place on April 10, 2012. A suspected release was reported to NCDEQ on April 11,
2012. The three USTs were removed from the Site on February 6, 2013.
The USTs were single-walled fiberglass, with single-walled fiberglass piping and under dispenser containment. Since
installation, the USTs contained gasoline. At the time of removal, pinhole leaks were observed in the side of the USTs.
Based on observations made during the February 2013 tank removal, all three of the USTs may have contributed to the
release. AECOM has not conducted previous (pre-2012) investigations at this site. No reports of previous site investigations
(pre-2012) are known.
3.2 Aboveground Storage Tank Systems
No aboveground storage tank systems (ASTs) are currently present on-site. Based on available information, no ASTs have
historically been present at the Site.
3.3 Historical Release Information
No historical releases, prior to the release discovered during the 2012 UST abandonment activities, are known.
3.4 Site Characteristics and Land Use
The location of the Site is shown on a portion of the United States Geological Survey 7.5-minute topographic map of the Kill
Devil Hills, NC (1984) Quadrangle (Figure 1-1). The layout of the Site is found on Figure 1-2. The Site is currently an active
7-Eleven convenience store located on the east side of South Croatan Highway (US-158). The majority of the Site is occupied
by the 7-Eleven building and paved parking area, with some grassy area along the southern side of the Site. A drainage ditch
is located along the west side of the Site.
The Site and surrounding properties are located within the Town of Kill Devil Hills and Dare County. Use of the Site and
surrounding properties is consistent with business and residential areas in an urban setting.
The Site and properties located within the Town of Kill Devil Hills generally receive municipal water from the Town of Kill Devil
Hills, which receives its water from Dare County Water Department. Properties located within Dare County receive municipal
water from Dare County or private wells.
No potable wells have been identified within 1,500 feet of the Site (AECOM, 2012b), and municipal water (from the Town of
Kill Devil Hills) is available to properties within 1,500 feet of the Site.
3 Site History and Characterization
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7-Eleven #19847 Groundwater Monitoring Report February 2016

Two irrigation wells have been identified within 500 feet of the Site:
− 1617 Wrightsville Avenue (approximately 250 feet southeast of the tank field) – The well was installed in 2000 to a depth
of 75 feet below ground surface (bgs) and is used for irrigation. Based on site reconnaissance, the well may be located in
a small structure adjacent to the residence; however, the well location could not be confirmed as the resident was not at
home during the site reconnaissance. The approximate location of the structure is shown on Figure 3-1.
− 1620 South Memorial Boulevard (approximately 400 feet southeast of the tank field) – The well was installed in 2001 to a
depth of 50 feet bgs and is used for irrigation. No well-related structures were identified during the February 2013
reconnaissance; a presumed location of the well is shown on Figure 3-1.
Two additional irrigation wells were identified within 1,000 feet of the Site based on information provided by Mr. Charles Spry
(owner of 1617 Wrightsville Avenue) and confirmed by discussions with representatives of the property owners. One irrigation
well is present at Nags Head Hammocks, located at 1801 Croatan Highway and approximately 750 feet cross-gradient from
the Site, and one irrigation well is present at Wings, located at 1405 South Croatan Highway and approximately 650 feet
cross-gradient of the Site.
The information on private wells is summarized on Table 3-3.
3.5 Site Geology and Hydrogeology
The Site is located within the Coastal Plain physiographic province. Based on observations made during the installation of the
six site monitoring wells, subsurface soils consist predominantly of brown to gray fine sand (Unified Soil Classification System
[USCS] symbol SP) to 20 feet bgs. A layer of poorly sorted sand (USCS symbol SW) was observed at deep well DW-1 from a
depth of 20-25 feet, below which brown-gray fine sand continued to a depth of 53 feet. A gray clay layer containing shell
material (USCS symbol CL) was encountered from 53-54 feet bgs. Below the clay layer, the brown-gray fine sand continued
until the monitoring well boring was terminated at 70 feet bgs. Petroleum odors and elevated photo ionization detector
readings were noted during the installation of MW-5 and DW-1. No odor, staining, or other evidence of petroleum
contamination was observed during the installation of wells MW-2R and MW-6, located north and west of the tank field,
respectively.
The Site topography is generally flat. Historically, groundwater has been encountered between roughly 1.5 feet bgs and 4.5
feet bgs. Aquifer testing was attempted in August 2013 during the CSA phase, but was not completed due to the quick
recharge of the Site monitoring wells. Based on Site lithology and literature values, the hydraulic conductivity of the surficial
aquifer was estimated to be approximately 0.0032 centimeters per second or 9 feet per day (AECOM, 2013b).
Assuming the shallow wells to be fully penetrating (aquifer thickness of 12 feet) and using aforementioned literature value for
hydraulic conductivity, the calculated transmissivity is 1.17 centimeters squared per second or 108 square feet per day.
Groundwater flow was determined to be eastward toward the Atlantic Ocean. The hydraulic gradient was approximately 0.003
feet per foot (ft/ft) in January 2016. Based on liquid level data, it appears that the gradient flattens out across the former tank
field, which is likely related to the presence of fill material.
3.6 Current Status of Remediation
To address the subsurface contamination, 102,617 gallons of petroleum-impacted water was removed from the tank field wells
and well MW-3 and 351.69 tons of petroleum-impacted soils were removed from the subsurface. These initial abatement
measures were conducted with approval from NCDEQ during UST removal.
The following post-excavation activities have been conducted at the Site as part of the groundwater monitoring investigation:
− In October 2012, monitoring well MW-3 was over-drilled and replaced with a 4-inch diameter well (MW-3R).
− In July 2013, monitoring wells MW-2R and MW-6 were installed to replace monitoring wells MW-1 and MW-2, which were
destroyed during the UST removal.

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7-Eleven #19847 Groundwater Monitoring Report February 2016

− In July 2013, monitoring wells MW-5 and DW-1 were installed to further characterize site groundwater conditions.
− In May 2014, monitoring wells MW-7 to MW-9 were installed off-site.
− In January 2015, monitoring well MW-10 was installed off-site.

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7-Eleven #19847 Groundwater Monitoring Report February 2016
Site activities were conducted in accordance with the Region 4 United States Environmental Protection Agency (EPA)
Environmental Investigations Standard Operating Procedures and Quality Manual.
4.1 Groundwater Sampling
A groundwater sample was collected from each of the 10 site groundwater monitoring wells (MW-2R to MW-10 and DW-1) on
January 14, 2016. Prior to sampling, each well was gauged using an oil/water interface probe. Figure 1-2 shows the
monitoring well locations. The elevation summary for the wells is provided in Table 4-1.
Dedicated disposable bailers were used to purge and sample monitoring wells MW-2R to MW-10. Due to the depth of
monitoring well DW-1, a monsoon pump was used to purge the well, and a dedicated disposable bailer was used to sample
the well. Three well volumes were purged from each monitoring well prior to sample collection. The purging was performed
on all wells prior to any sampling activities. Sampling occurred in the same order as purging to allow groundwater turbidity in
each well to reduce prior to sample collection. The samples were collected directly in laboratory prepared containers for
shipment to the laboratory as described in the preceding section. Groundwater samples were analyzed for volatile organic
compounds (VOCs) via EPA Method SM 6200B. Samples were sent to Test America of Nashville, TN for analysis.
4.2 Water Supply Well Sampling
NCDEQ correspondence dated September 25, 2015 required the sampling of the two water supply wells identified within 500
feet of the Site (1617 Wrightsville Avenue and 1620 South Memorial Boulevard). The property owner at 1617 Wrightsville
Avenue and 1620 South Memorial Boulevard could not be reached prior to the January 2016 groundwater sampling event to
confirm the well’s operational status and obtain permission to sample the well. Historically, the property owner at 1617
Wrightsville Avenue refused access. No private wells were sampled during the January 2016 sampling event.

4 Field Activities
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7-Eleven #19847 Groundwater Monitoring Report February 2016
5.1 Gauging Results
On January 14, 2016, groundwater was encountered between 1.77 feet bgs (MW-9) to 3.66 feet bgs (DW-1). Groundwater
flow was estimated to be toward the east, with a gradient of approximately 0.003 ft/ft (Figure 5-1).
Groundwater gauging data and monitoring well details are summarized on Table 4-1.
5.2 Groundwater Sampling Results
The following compounds were detected above their Title 15A North Carolina Administrative Code 2L Groundwater Standard
(2L Standard) in one or more wells:
− Benzene exceeded its 2L Standard of 1 microgram per liter (µg/L) in well MW-3R (33.4 µg/L), MW-5 (27.6 µg/L), and MW-
10 (36.5 µg/L).
− Isopropylbenzene exceeded its 2L Standard of 70 µg/L in well MW-10 (85 µg/L).
− Naphthalene exceeded its 2L Standard of 6 µg/L in well MW-3R (91.4 µg/L), MW-5 (161 µg/L), and MW-10 (449 µg/L).
− n-Propylbenzene exceeded its 2L Standard of 70 µg/L in wells MW-3R (73.8 µg/L), MW-5 (75.6 µg/L), and MW-10 (226
µg/L).
− Total xylenes exceeded its 2L Standard of 500 µg/L in wells MW-10 (595 µg/L).
Eight compounds were only detected below 2L Standards in one or more wells: ethylbenzene, methyl tert-butyl ether, n-
butylbenzene, sec-butylbenzene, p-isopropyltoluene, toluene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene.
No VOC compounds were detected in the samples collected from monitoring wells MW-4, MW-6, MW-7, MW-8, and MW-9
during the January 2016 monitoring event.
Analytical results are summarized in Table 5-1. Figures 5-2 to 5-5 include isoconcentration maps for benzene, xylene,
naphthalene, and n-propylbenzene respectively. Laboratory analytical reports are included in Appendix B.
5.3 Groundwater Concentration Trends
Groundwater concentrations of VOC compounds in wells MW-3/MW-3R and MW-5 have generally decreased. Overall,
concentrations of benzene, naphthalene, toluene, 1,2,4-trimethylbenzene, total xylenes, and volatile petroleum hydrocarbon
(VPH) compounds in MW-3/MW-3R have decreased by approximately an order of magnitude since installation of this well in
2012. Mann-Kendall analysis of the trends concentrations of benzene, ethylbenzene, naphthalene, and xylenes in well MW-
3/MW-3R and MW-5 are “decreasing” or “probably decreasing.” VPH compounds were not analyzed during the January 2016
groundwater monitoring event. Trend graphs for MW-3R and MW-5 are included as Appendix C.
In January 2016, the maximum detected concentrations were in off-site monitoring well MW-10. Since the installation of MW-
10 in January 2015, concentrations of most compounds have generally fluctuated, with overall decreases of benzene,
ethylbenzene, and xylene concentrations but increases of isopropylbenzene, naphthalene, and n-propylbenzene. Additional
monitoring events are required to determine contaminant trends at this location.
5.4 Private Water Well Sampling Results
As discussed in Section 4.2, no private wells were sampled during the January 2016 sampling event.
5 Results
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7-Eleven #19847 Groundwater Monitoring Report February 2016
5.5 Soil Sampling Results
Historical soil sampling results are included on Table 5-2. Petroleum-impacted soils were unable to be excavated on the
eastern side of the Site due to the presence of underground utilities.

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7-Eleven #19847 Groundwater Monitoring Report February 2016
Based on the January 2016 groundwater sampling event, the following conclusions are made:
− Groundwater flow is expected to be toward the east.
− The plume is delineated to 2L Standards vertically and to the west, south, and east.
− Multiple compounds exceeded 2L Standards in monitoring wells MW-3R, MW-5, and MW-10.
− Overall, concentrations have decreased since the 2013 removal of the site USTs. This suggests that the removal of the
USTs and more than 300 tons of petroleum-impacted soils is aiding natural attenuation.
− The two nearby irrigation wells were not available for sampling during this event. AECOM has been unable to contact the
property owners at 1617 Wrightsville Avenue and 1620 South Memorial Boulevard.
AECOM recommends the following:
− Sample the site monitoring wells in July 2016.
− Sample the off-site irrigation wells, if access is granted by the property owners.
− Submit a semi-annual groundwater monitoring report by September 15, 2016.

6 Conclusions and Recommendations
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7-Eleven #19847 Groundwater Monitoring Report February 2016

AECOM, 2012a. 20-Day Report, 7-Eleven Store No. 19847, 1610 S. Croatan Highway, Kill Devil Hills, NC. May 2012.
AECOM, 2012b. Initial Abatement Action Report, 7-Eleven Store No. 19847, 1610 South Croatan Highway, Kill Devil Hills,
NC. July 2012.
AECOM, 2012c. Limited Site Assessment Report, 7-Eleven Store No. 19847, 1610 South Croatan Highway, Kill Devil Hills,
NC. August 2012.
AECOM, 2013a. Pre-Corrective Action Plan Groundwater Monitoring and Underground Storage Tank Closure Report, 7-
Eleven Store No. 19847, 1610 South Croatan Highway, Kill Devil Hills, NC. March 2013.
AECOM, 2013b Comprehensive Site Assessment Report, 7-Eleven Store No. 19847, 1610 South Croatan Highway, Kill Devil
Hills, NC. September 2013.

7 References
AECOM Environment

7-Eleven #19847 Groundwater Monitoring Report February 2016

Tables
Table 3-1
Site History - UST Owner/Operator and Other Responsible Party Information
7-Eleven Store No. 19847
Kill Devil Hills, NC
Incident Number: 38285 Facility ID #: 0-011788 Revision Date: 09/19/2013
UST ID Number 1,2,3
(All removed February 2013)Facility ID Number 0-011788
City State Zip Telephone Number
Dallas TX 75201 978-828-0711
City State Zip Telephone Number
Kill Devil Hills NC 27948 252-441-4549
Notes:
NC - North CarolinaTX - Texas
Address
1601 South Croatan Highway
7-Eleven, Inc. 1985 to Present
7-Eleven, Inc. 1985 to Present
Name of UST Owner Date of Operation
Address
1722 Routh Street, Suite 1000
Name of UST Operator Date of Operation
AECOM
Table 3-2Site History - UST/AST System and Other Release Information7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 09/19/2013UST ID NumberCurrent / Last ContentsPrevious ContentsCapacity (gallons)Construction DetailsTank Dimensions (feet)Associated Piping and PumpsDate Installed Current StatusWas release associated with UST System?1Regular Unleaded GasolineGasoline 10,000Single-walled fiberglass8 x 27Single-walled fiberglassApril 1985RemovedFebruary 2013Yes2Regular Unleaded GasolineGasoline 10,000Single-walled fiberglass8 x 27Single-walled fiberglassApril 1985Abandoned in Place April 2012; removed February 2013Yes3Premium Unleaded GasolineGasoline 10,000Single-walled fiberglass8 x 27Single-walled fiberglassApril 1985RemovedFebruary 2013YesIncident NumberMaterial ReleasedDate of Release38285 Gasoline April 10, 2012Note:UST - Underground Storage TankDescription of ReleasePetroleum odors observed during installation of soil borings. Analytical results, received April 18, 2012, confirmed presence of petroleum in soil and groundwater.AECOM
Table 3-3Public and Private Water Supply Wells and Other Receptor Information7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 2/2/2016Map ID 1PINWell Owner 2Property Address Mailing Address Phone Number Well UseWell Depth (ft bgs)Type of WellWell Casing Depth (ft bgs)Well Screen Interval (ft bgs)Distance from source area of release 3(ft)Up or Downgradient41 989309058019 Scruggs and Simmons1620 S. Memorial BoulevardKill Devil Hills, NC 2794814441 Makenzie Lee Road Disputanta, VA 23842804-861-1761 Irrigation 50 N/A N/A N/A 400 Cross-gradient2 989309056085 Charles and Kim Spry1617 Wrightsville Avenue Kill Devil Hills, NC 27948 1617 Wrightsville Avenue Kill Devil Hills, NC 27948 252-480-0794 Irrigation 75 N/A N/A N/A 250 Cross-gradient989313046470 Nags Head Hammocks1801 Croatan HighwayKill Devil Hills, NC1801 Croatan HighwayKill Devil Hills, NCBill252-441-6115Irrigation N/A N/A N/A N/A 750 Cross-gradient988312959785 Wings1405 S. Croatan HighwayKill Devil Hills, NC1405 S. Croatan HighwayKill Devil Hills, NCWendy252-480-0009x21Irrigation N/A N/A N/A N/A 650 Cross-gradientContact Phone NumberDistance from source area of release (ft)Up or Downgradient2N/A N/A 1,200 Up-GradientN/A N/A 1,500 Up-GradientNotes:1 - Map ID refers to Figure 3-1.2 - Well Owner information based on results of the well survey. 3 - Exact location of well unknown; distance from source area calculated based on the nearest property boundary4 - Groundwater gradient is expected to be toward the east-northeast based on gauging data collected in Janary 2016ft - feetft bgs - feet below ground surfaceN/A - not availableNC - North CarolinaNW - NorthwestPIN - Parcel Identification NumberSW - SouthwestVA - VirginiaPWS 0428030 Dare County Water System Wellhead Protection Area (NW of Site)Wellhead Protection AreaPWS 0428030 Dare County Water System Wellhead Protection Area (SW of Site)Wellhead Protection AreaWell Survey (within 500 feet)Other ReceptorsReceptor IDDescriptionUsageAECOM
Table 4-1Monitoring and Remediation Well Construction Information7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 02/2/2016Well ID Date InstalledDate Water Level MeasuredWell Casing Diameter (in)Well Casing Depth (ft bgs)Screened Interval (ft bgs)Depth of well (ft bgs)Top of Casing Elevation (msl)Depth to Water from TOC (ft)Free Product Thickness (ft)Groundwater Elevation (ft)Comments4/9/2012 44/9/2012 N/A N/A 8.53 3.18 0 5.748/9/2012 N/A N/A 8.53 1.90 0 7.024/9/2012 N/A N/A 8.26 3.53 0 5.388/9/2012 N/A N/A 8.26 1.85 0 7.064/9/2012 44/10/20123.75 05.628/12/20122.47 06.908/12/201220 - 2.5 2.5 - 15 15 8.56 1.67 06.898/12/201220 - 2.5 2.5 - 15 15 9.43 2.60 06.838/2/20133.12 05.402/7/20142.42 06.108/5/20142.05 06.471/21/20152.27 06.257/30/20153.04 05.481/14/20162.49 06.038/2/20134.10 05.232/7/20143.39 05.948/5/20143.01 06.321/21/20153.25 06.087/30/20154.08 05.251/14/20163.46 05.878/2/20133.31 05.582/7/20142.64 06.258/5/20142.31 06.581/21/20152.51 06.387/30/20153.24 05.651/14/20162.73 06.168/2/20134.17 05.192/7/20143.47 05.898/5/20143.10 06.261/21/20153.31 06.057/30/20154.13 05.231/14/20163.51 05.8515 8.89MW-5 7/30/2013 2 0-2 2 - 12 12 9.36MW-4 8/9/2012 2 0 - 2.5 2.5 - 1512 8.52MW-3R 10/26/2012 4 0 - 2.5 2.5 - 15 15 9.33MW-2R 7/30/2013 2 0-2 2 - 120 - 2.5 2.5 - 15MW-1 4/10/2012unable to remove well cap - could not gaugeunable to remove well cap - could not gauge448.928.91TF-1 N/ATF-4 N/AN/ATF-3MW-3 8/9/2012Well destroyed during February 2012 UST removal activitiesWell destroyed during February 2012 UST removal activitiesWell destroyed during February 2012 UST removal activitiesWell destroyed during February 2012 UST removal activitiesWell Abandoned 10/26/2012Well Abandoned 10/26/2012Well over-drilled and replaced with a 4-inch well (MW-3R) on 10/26/2012TF-2 N/AMW-2 8/9/201215 9.372AECOMPage 1 of 2
Table 4-1Monitoring and Remediation Well Construction Information7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 02/2/2016Well ID Date InstalledDate Water Level MeasuredWell Casing Diameter (in)Well Casing Depth (ft bgs)Screened Interval (ft bgs)Depth of well (ft bgs)Top of Casing Elevation (msl)Depth to Water from TOC (ft)Free Product Thickness (ft)Groundwater Elevation (ft)Comments8/2/20133.93 05.382/7/20143.27 06.048/5/20142.91 06.41/21/20153.13 06.187/30/20153.87 05.441/14/20163.33 05.988/5/20142.22 05.931/21/20152.51 05.647/30/20153.43 04.721/14/20162.7 05.458/5/20141.94 05.871/21/20152.18 05.637/30/20153.08 04.731/14/20162.35 05.468/5/20141.33 06.001/21/20151.58 05.757/30/20152.48 04.851/14/20161.77 05.56MW-10 1/19/20151/21/20151.74 05.837/30/20152.6 04.971/14/20161.89 05.688/2/20134.37 04.902/7/20143.68 05.598/5/20143.27 06.001/21/20153.54 05.737/30/20154.35 04.921/14/20163.66 05.61Notes:ft - feetft bgs - feet below ground surfacein - inchesmsl - mean sea levelN/A - not availableNC - North CarolinaNM - not measuredNS - not surveyedSite wells constructed as a flush-mount wells. TOC - top of casing2 0-2 2 - 12 12 7.572 0-60 60 - 70 70 9.272 0-2 2 - 12 12 7.3312 8.152 0-2 2 - 12 12 7.810-222 0-2 2 - 12MW-8MW-9DW-1 7/31/20135/12/20145/12/2014MW-6MW-7 5/12/20147/30/20139.31122 - 12AECOMPage 2 of 2
Table 5-1Summary of Groundwater Sampling Results7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 02/2/2016504.16010BWellDate CollectedSource Area Sample IDIncident Phase 4/10/2012 MW-1 UST Closure860<100 <100 <1001,200<100 <100 <100 <500190 6,300 760 200 4,800<0.0114,000 9,700 6,600 1,800<5.08/12/2012 MW-1 LSA690<100 <100 <1001,000 70<50 <50640 150 6,200 1200 300 6,800NA19,000 12,000 10,000 3,000<5.08/12/2012 MW-2 LSA560<100 <100 <1002,300 93<25 <25570 220 13,000 1800 460 12,700NA36,000 23,000 17,000 3,700<5.08/2/2013MW-2R CSA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.02/7/2014MW-2R Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014 MW-2R Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015 MW-2R Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/30/2015MW-2R Monitoring <0.5 <0.5 <0.5 <0.50.868<0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-2R Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANAMW-3 8/12/2012 East of TFMW-3 LSA2700<100 <100 <1001,500 76<50 <501100 170 13,000 2300 620 12,800NA38,000 25,000 19,000 5,200<5.02/5/2013 MW 3 Dewater*430 10<10 <10630 48<10 <10280 140 1,700 550 200 2,380NA9,500 5,600 5,700 1,700NA2/11/2013 MW 3 Dewater*330 11<10 <10460 42<10 <10260 120 1,400 530 180 1,890NA7,800 4,600 4,800 1,600NA2/11/2013 MW-3R UST Closure91 9.4 5<1.054 34<1.0 <1.0170 97 58 56 40 178NA2,300 1,600 1,400 760<5.08/2/2013 MW-3R CSA1100<50 <50 <501,800 110<50 <50540 280 1,700 2400 600 4,700NA18,000 8,200 14,000 4,400<5.02/7/2014 MW-3R Monitoring400<50 <50 <50770 57<50 <50 <250160<250890 260 1,030NA5,300 3,000 4,600 2,300<5.08/5/2014 MW-3R Monitoring120<255.3<5360 21<5 <5110 82<25210 65 481NA3,900 1,500 2,300<1,000NA1/21/2015MW-3R Monitoring140 16<10 <10320 38<10 <10160 120 410 370 92 630NA4,800 2,800 3,500 1,500NA7/30/2015MW-3R Monitoring39.4 38.3<0.5 <0.5326 51.9 4.65<0.5273 140 9.02 86 18.5 411NA NA NA NA NANA1/14/2016MW-3R Monitoring33.4 21 6.38<0.5158 22 2.25<0.591.4 73.8 9.08 92.5 19.2 151NA NA NA NA NANA8/12/2012 MW-4 LSA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/2/2013MW-4 CSA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <1008.82/7/2014 MW-4 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014 MW-4 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015MW-4 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/31/2015MW-4 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-4 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA8/2/2013MW-5 CSA550<25 <25 <25720 66<25 <25330 200 580 860 230 2,930NA7,800 3,200 6,300 1,8007.52/7/2014MW-5 Monitoring520 16 7.9<1.0700 36 2.2<1.0290 92 42 1000 160 3,054NA7,100 2,900 7,000 2,800<5.08/5/2014MW-5 Monitoring230 12 6.8<5440 31<5 <5240 86<25590 160 1,300NA3,500 1,100 4,100 1,600NA1/21/2015MW-5 Monitoring150 17 10<10530 37<10 <10210 100<50480 100 802NA3,500 1,400 3,400 1,200NA7/30/2015MW-5 Monitoring48.3<0.5 <0.5 <0.5416 29.6 1.24<0.5159 66.6 3.15 237 16.5 344NA NA NA NA NANA1/14/2016MW-5 Monitoring27.6 13 7.04<0.5249 28.8 1.69<0.5161 75.6 7.10 281 43.7 438NA NA NA NA NANA8/2/2013MW-6 CSA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.02/7/2014MW-6 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.01.5<3.0 NA <100 <100 <100 <100<5.08/5/2014MW-6 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015MW-6 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/31/2015MW-6 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-6 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA5/12/2014MW-7 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014MW-7 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015MW-7 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/31/2015MW-7 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-7 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANASouth of TFMW-6MW-5 Southeast of TFWell Abandoned 10/26/2012C9-C12 AliphaticsC9-C10 AromaticsVOCs by EPA Method 6200BMADEP VPHn-Butylbenzenesec-ButylbenzeneLeadBenzeneToluene1,2,4-TrimethylbenzeneC5-C8 AliphaticsEthylene Dibromide1,3,5-TrimethylbenzeneXylenes, totalEast of TFMW-2RNorth of TFVolatile Petroleum HydrocarbonsSouth of TFNaphthalenen-PropylbenzeneDi-isopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl tert-butyl ether (MTBE)Contaminant of ConcernWell Abandoned 10/26/2012Analytical Method (e.g. VOCs by EPA 8260)MW-4 West of TFMW-7 East of TFDewateringMW-2MW-1MW-3 over-drilled and replaced with 4-inch well (MW-3R) on 10/26/2012North of TFMW-3RAECOMPage 1 of 2
Table 5-1Summary of Groundwater Sampling Results7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 02/2/2016504.16010BWellDate CollectedSource Area Sample IDIncident Phase C9-C12 AliphaticsC9-C10 AromaticsVOCs by EPA Method 6200BMADEP VPHn-Butylbenzenesec-ButylbenzeneLeadBenzeneToluene1,2,4-TrimethylbenzeneC5-C8 AliphaticsEthylene Dibromide1,3,5-TrimethylbenzeneXylenes, totalVolatile Petroleum HydrocarbonsNaphthalenen-PropylbenzeneDi-isopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl tert-butyl ether (MTBE)Contaminant of ConcernAnalytical Method (e.g. VOCs by EPA 8260)5/12/2014MW-8 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014MW-8 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015MW-8 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/31/2015MW-8 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-8 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA5/12/2014MW-9 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014MW-9 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015MW-9 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/31/2015MW-9 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016MW-9 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/21/2015MW-10 Monitoring230 13<10 <10710 56<10 <10320 160<5070 19 320NA3,800 1,900 2,900 1,000NA7/31/2015MW-10 Monitoring113<0.5 <0.5 <0.5553 49.2 0.859<0.5217 102 287 267 103 1,520NA NA NA NA NANA1/14/2016MW-10 Monitoring36.5 23.5 12.3<0.5405 85 1.84<0.5449 226 9.48 185 23.7 595NA NA NA NA NANA8/2/2013DW-1 CSA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <1005.22/7/2014DW-1 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.01.3<5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100<5.08/5/2014DW-1 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA1/21/2015DW-1 Monitoring <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.01.1<5.0 <1.0 <5.0 <1.0 <1.0 <3.0 NA <100 <100 <100 <100NA7/30/2015DW-1 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.51.46<5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1/14/2016DW-1 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.50.705<5.0 <0.5 <0.5 <0.5 <0.5 <1.0 NA NA NA NA NANA1 70 70 70 600 70 -- 20 6 70 600 400 400 500 0.02-- 400 700 200 15-- -- -- -- -- -- 25 -- -- -- -- -- -- -- ------ -- ----5,000 6,900 8,500 70,000 84,500 25,000 11,700 20,000 6,000 30,000 260,000 28,500 25,000 85,500 50-- 400,000 700,000 200,000 15,000Notes:µg/L - micrograms per liter LSA - Limited Site Assessment2L Standard - NCAC 2L Groundwater StandardMADEP VPH - Massachusetts Department of Environmental Protection Volatile Petroleum HydrocarbonsBold - detected value NA - not analyzedEPA - United States Environmental Protection AgencyShaded - value exceeds the 2L StandardGCL - gross contamination levelTF - tank fieldIMAC - NCAC Interim Maximum Allowable ConcentrationVOC ‐ volatile organic compoundNC - North Carolina*MW 3 Dewater samples collected from the piping to the tank field. The UST Closure sample collected from MW-3 was collected via bailer after dewatering activities had ceased.DW-1 Southeast of TFEast of TFMW-10MW-9 Southeast of TFGCL (µg/L)2L Standard (µg/L)IMAC (µg/L)East of TFMW-8AECOMPage 2 of 2
Table 5-2Summary of Soil Sampling Results7-Eleven Store No. 19847Kill Devil Hills, NCIncident Number: 38285 Facility ID #: 0-011788 Revision Date: 09/19/2013Sample IDDate CollectedSource AreaSample Depth (ft bgs)Incident Phase TPH-GROSB-01 (3.5-4) 4/10/2012 South of Tank 2 3.5-40.37<0.241.2<0.2412 2.3 0.96<2.411 6.2<0.2419 73 16 24 100NA NA NA NA1,000SB-02 (3-3.5) 4/10/2012 North of Tank 2 3-3.56.4<2.46.8<2.4170 23 4.9<2453 74<2.4270 420 82 140 820NA NA NA NA10,000D-1 2/5/2013 Dispenser 1 2.5 ft <0.00100.0013<0.0010 <0.00100.011 0.0022<0.0010 <0.00100.024 0.0059 0.0029 0.0087 0.047 0.014 0.013 0.082NA NA NA NA < 5D-2 2/5/2013 Dispenser 2 2.5 ft <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0050 <0.0010 <0.0010 <0.0050 <0.0010 <0.0010 <0.0010 <0.0030 NA NA NA NA < 4.3PL-1 2/7/2013 Product Line 2.5 ft <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.010 <0.0050 <0.0010 <0.0010 <0.0050 <0.0010 <0.0010<0.0010 <0.0030 NA NA NA NA <4.6PL-2 2/7/2013 Product Line 2.5 ft <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.010 <0.0050 <0.0010 <0.0010 <0.0050 <0.0010 <0.0010<0.0010 <0.0030 NA NA NA NA <4.9PL-3 2/7/2013 Product Line 2.5 ft <0.480.91<0.48 <0.481.6 0.53<0.48 <4.84.4 2.3<0.48 <2.418 4.1 5.5 8.9NA NA NA NA180PRSW-1 2/6/2013 2.5 ft <1.79.3 3.9<1.770 10 2.4 21 38 37<1.757 240 52 73 400NA NA NA NA3,400PRSW-2 2/6/2013 2.5 ft <0.8911 4.1<0.8952 12 2.1 31 29 43<0.89 <4.4360 60 78 260NA NA NA NA4,200PRSW-3 2/6/2013 2.5 ft <2.314 6.2<2.396 18 3.6 35 54 65<2.3 <11370 78 110 480NA NA NA NA5,800PRSW-4 2/6/2013 2.5 ft <2.06.9 3<2.05.8 6.1<2.0 <20 <1025<2.0 <10140 25 45 21NA NA NA NA4,000PRSE-1 2/6/2013 2.5 ft <2.210 6.1<2.232 10 3.3<2266 26<2.230 400 91 130 430NA NA NA NA4,300PRSE-2 2/6/2013 2.5 ft <9.516<9.5 <9.555 14<9.5 <9571 45<9.5 <48430 92 130 510NA NA NA NA4,600PRSE-3 2/6/2013 2.5 ft <8.89.2<8.8 <8.845 9.1<8.8 <88 <4433<8.8 <44220 46 70 280NA NA NA NA2,900PRSE-4 2/6/2013 2.5 ft <9.617<9.6 <9.6110 19<9.6 <9662 69<9.6100 440 88 140 650NA NA NA NA4,900PRSN-1 2/6/2013 2.5 ft <0.048 <0.048 <0.048 <0.048 <0.048 <0.048 <0.048 <0.480.25<0.048 <0.048 <0.240.16 0.065 0.051<0.14 NA NA NA NA <4.8PRSN-2 2/6/2013 2.5 ft <4.68.2<4.629 44 8.2<4.6 <4632 30<4.642 200 41 60 260NA NA NA NA2,600PRSN-3 2/6/2013 2.5 ft <0.471.3 0.51<0.472.2 0.76<0.47 <4.76.2 2.8<0.47 <2.425 5.6 7.6 16NA NA NA NA1,800PRSN-4 2/6/2013 2.5 ft <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.010 <0.0050 <0.0010 <0.0010 <0.00500.002<0.0010 <0.0010 <0.0030 NA NA NA NA <4.8PRSS-1 2/6/2013 2.5 ft <0.046 <0.046 <0.046 <0.046 <0.046 <0.046 <0.046 <0.460.55<0.046 <0.046 <0.230.28 0.16 0.12<0.14 NA NA NA NA <4.6PRSS-2 2/6/2013 2.5 ft <4.812 4.8<4.850 10<4.8 <4841 35<4.842 280 58 89 360NA NA NA NA4,000PRSS-3 2/6/2013 2.5 ft <2.26 2.4<2.226 4.8<2.2 <2220 18<2.225 140 31 42 190NA NA NA NA2,300PRSS-4 2/6/2013 2.5 ft6.6 16 5.8 56 140 18 3.6<9.255 64<0.92310 430 88 120 920NA NA NA NA8,800OEN 2/7/2013 North of Tank Field 2.5 ft <1.09.2 3.6<1.026 6.8 2.5<106.8 2.5<1.0 <5.127 44 62 160 920 2001500 840NAOES 2/7/2013 South of Tank Field 2.5 ft <0.100.63 0.18<0.100.39 0.19 0.12<1.04.7 0.83<0.10 <0.509.2 2.6 2.6 3.3 35<5.087 52NAOEW 2/7/2013 West of Tank Field 2.5 ft <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.010 <0.0051 <0.0010 <0.0010 <0.0051 <0.0010 <0.0010 <0.0010 <0.0031 <4.8 <4.8 <4.8 <4.8 NAOEE 2/12/2012 East of Tank Field 2.57.4 21 9.1<4.8120 21 18<4873 75<4.8280 600 120 190 1000 28001300 2700 1200NAMW-2R 7/30/2013 North of Tank Field 3-3.5 ft CSA <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.012 <0.0062 <0.0012 <0.0012 <0.0062<0.0012 <0.0012 <0.0012 <0.0037 <4.2 <4.2 <4.2 <4.2 NAMW-5 7/30/2013Southeast of Tank Field3-3.5 ft CSA <0.0013 <0.0013 <0.0013 <0.0013 <0.0013 <0.0013 <0.0013 <0.013 <0.0064 <0.0013 <0.0013 <0.0064 <0.0013 <0.0013 <0.0013 <0.0038 <6.4 <6.4 <6.4 <6.4 NAMW-6 7/30/2013 South of Tank Field 3-3.5 ft CSA <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.0012 <0.012 <0.0060 <0.0012 <0.0012 <0.0060 <0.0012 <0.0012 <0.0012 <0.0036 <5.9 <5.9 <5.9 <5.9 NA0.0056 4.3 3.3 3.4 4.9 1.7 0.12 16 0.16 1.7 1.5 4.3 8.5 -- 8.3 4.6 -- 68 540 31 --18 626 626 626 1,560 1,560 100 9,385 313 626 3128 1,200 782 -- 782 3,129 -- 939 1,500 469 --164 16,350 16,350 16,350 40,000 40,000 4,000 245,280 8,176 16,350 81,760 32,000 20,440 -- 20,440 81,760 -- 24,528 40,000 12,264 --Notes:Bold - detected valueRed - value exceeds the residential MSCC EPA - Environmental Protection Agency Results reported in milligrams-per-kilogram (mg/kg)ft bgs - feet below ground surface Shaded - value exceeds Soil to Groundwater MSCCGRO - Gasoline Range Organics TPH - Total Petroleum Hydrocarbonsmg/kg - milligrams per kilogram UST - Underground Storage TankMSCC - maximum soil contaminant concentration VOC - volatile organic compoundNC ‐ North CarolinaMADEP VPHGRO by 8015IsopropylbenzeneTolueneVOCs by EPA Method 8260Analytical Method (e.g. VOCs by EPA 8260)Contaminant of ConcernBenzeneEthylbenzeneNaphthaleneResidential MSCC (mg/kg)Industrial/Commercial MSCC (mg/kg)1,3,5-TrimethylbenzeneXylenes, totalVolatile Petroleum Hydrocarbons1,2,4-Trimethylbenzene2-Butanone (MEK)North of Tank FieldSouth of Tank FieldOver-excavationSoil to Groundwater MSCC (mg/kg)C5-C8 AliphaticsC9-C12 Aliphatics* C9-C10 Aromatics **n-Butylbenzenesec-Butylbenzenep-Isopropyltoluenen-Propylbenzene1,2,3-TrimethylbenzeneStyrenetert-ButylbenzeneUST Closure: In-place abandonment of UST #2UST Closure: Removal of site USTsWest of Tank FieldEast of Tank FieldAECOM
AECOM Environment

7-Eleven #19847 Groundwater Monitoring Report February 2016

Figures
Site Location
Map Location
September 9, 2013 60263455.20.521
Site Location Map1601 S. Croatan HighwayKill Devil Hills, NC 27948
Figure 1-1
AECOM North Carolina, Inc.8540 Colonnade Center Drive, Suite 306Raleigh, NC 27615Phone: [phone]Fax: [phone]Web: http://www.aecom.com
0 2,000 4,000Feet
NC
VA
SCGA
KY
TN
WV MD
Kill Devil Hills, NC USGS Topographic Quadrangle (1984)
#3#2#1
7-Eleven#19847GrassPARKING LOT(ADJACENT PROPERTY)Grass(Adjacent Property)GARBAGE BINS NEPTUNE DR
IVE
ParkingParkingFormer CanopyGrassGrassVENTPIPESTF-2TF-1MW-4TF-3TF-4MW-2MW-1MW-6MW-2RMW-5DW-1WRIGHTSVILLE BOULEVARDRESIDENTIALTREESTREESGrassGrassGrassMW-7MW-8MW-9MW-10MW-3R#2#3#1LEGENDMONITORING WELL LOCATIONFORMER MONITORING WELL LOCATION (REMOVED 2/2013)FORMER TANK FIELD WELLSFORMER REGULAR UNLEADED GRADE USTFORMER REGULAR UNLEADED GRADE USTFORMER PREMIUM UNLEADED GRADE USTFORMER PRODUCT LINESAREA OF EXCAVATIONEDGE OF PAVEMENTEDGE OF CONCRETECURB AND GUTTERWOOD FENCE7-11 Store No. 19847
1610 S. Croatan Highway
Kill Devil Hills, North Carolina
Project No.: 60338486 5-5.18
Issue Status: DRAFT
ANSI B 11" x 17"Last saved by: RASMUSSENS1(2015-03-02) Last Plotted: 2015-03-02 Project Management Initials:Designer:Checked:Approved:Filename: M:\KILL DEVIL\KDH\KDH 19847 CAD FILES\FIGURE 1-2_SITE MAP_2015.DWG
SITE MAP
Figure: 1-2
Date: 3-2-2015
C.J.C.SOURCES:1. SURVEYED LOCATIONS PROVIDED BY TAYLOR WISEMAN & TAYLOR; PROJECT 70534.6033.00; AUGUST 14, 2012.2. TANK FIELD AND CANOPY LOCATIONS ARE BASED ON AERIAL PHOTOGRAPHY PROVIDED BY 7-ELEVEN, INC.
AECOM Environment

7-Eleven #19847 Groundwater Monitoring Report February 2016

Appendix A.
Notice of Regulatory Requirements
AECOM Environment

7-Eleven #19847 Groundwater Monitoring Report February 2016

Appendix B.
Laboratory Analytical Results
ANALYTICAL REPORT
TestAmerica Laboratories, Inc.
TestAmerica Nashville
2960 Foster Creighton Drive
Nashville, TN 37204
Tel: [phone]
TestAmerica Job ID: 490-95871-1
TestAmerica SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
Client Project/Site: 19847.KDH.EL (NC)
For:
AECOM Technical Services Inc.
701 Corporate Center Drive
Suite 475
Raleigh, North Carolina 27607
Attn: Ms. Michelle Friedman
Authorized for release by:
1/22/2016 6:59:12 AM
Sherry Salomon, Manager of Project Management Assistants
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC and 2009 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.
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Table of Contents
Client: AECOM Technical Services Inc.
Project/Site: 19847.KDH.EL (NC)
TestAmerica Job ID: 490-95871-1
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
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Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
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Sample Summary
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID Client Sample ID ReceivedCollectedMatrix
490-95871-1 MW-2 Ground Water 01/14/16 09:45 01/15/16 09:35
490-95871-2 MW-3R Ground Water 01/14/16 11:30 01/15/16 09:35
490-95871-3 MW-4 Ground Water 01/14/16 09:25 01/15/16 09:35
490-95871-4 MW-5 Ground Water 01/14/16 10:10 01/15/16 09:35
490-95871-5 MW-6 Ground Water 01/14/16 09:00 01/15/16 09:35
490-95871-6 MW-7 Ground Water 01/14/16 12:00 01/15/16 09:35
490-95871-7 MW-8 Ground Water 01/14/16 12:15 01/15/16 09:35
490-95871-8 MW-9 Ground Water 01/14/16 12:55 01/15/16 09:35
490-95871-9 MW-10 Ground Water 01/14/16 12:35 01/15/16 09:35
490-95871-10 DW-1 Ground Water 01/14/16 11:00 01/15/16 09:35
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Case Narrative
Client: AECOM Technical Services Inc.TestAmerica Job ID: 490-95871-1
Project/Site: 19847.KDH.EL (NC)SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
Job ID: 490-95871-1
Laboratory: TestAmerica Nashville
Narrative
Job Narrative
490-95871-1
Comments
No additional comments.
Receipt
The samples were received on 1/15/2016 9:35 AM; the samples arrived in good condition, properly preserved and, where required, on ice.
The temperature of the cooler at receipt was 3.1º C.
GC/MS VOA
Method(s) SM6200-B: The laboratory control sample (LCS) for batch analytical batch 490-313853 recovered outside control limits for the
following analytes: Dichlorodifluoromethane and Carbon tetrachloride. These analytes were biased high in the LCS and were not
detected in the associated samples; therefore, the data have been reported.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
VOA Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
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Definitions/Glossary
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Qualifiers
GC/MS VOA
Qualifier Description
*LCS or LCSD is outside acceptance limits.
Qualifier
F1 MS and/or MSD Recovery is outside acceptance limits.
F2 MS/MSD RPD exceeds control limits
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
CNF Contains no Free Liquid
DER Duplicate error ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision level concentration
MDA Minimum detectable activity
EDL Estimated Detection Limit
MDC Minimum detectable concentration
MDL Method Detection Limit
ML Minimum Level (Dioxin)
NC Not Calculated
ND Not detected at the reporting limit (or MDL or EDL if shown)
PQL Practical Quantitation Limit
QC Quality Control
RER Relative error ratio
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)
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-1Client Sample ID: MW-2
Matrix: Ground WaterDate Collected: 01/14/16 09:45
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/20/16 18:51 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 18:51 1BromobenzeneND
0.500 ug/L 01/20/16 18:51 1BromochloromethaneND
0.500 ug/L 01/20/16 18:51 1BromodichloromethaneND
0.500 ug/L 01/20/16 18:51 1BromoformND
0.500 ug/L 01/20/16 18:51 1BromomethaneND
0.500 ug/L 01/20/16 18:51 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 18:51 1ChlorobenzeneND
0.500 ug/L 01/20/16 18:51 1ChloroethaneND
0.500 ug/L 01/20/16 18:51 1ChloroformND
0.500 ug/L 01/20/16 18:51 1ChloromethaneND
0.500 ug/L 01/20/16 18:51 12-Chlorotoluene ND
0.500 ug/L 01/20/16 18:51 14-Chlorotoluene ND
0.500 ug/L 01/20/16 18:51 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 18:51 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 18:51 1DibromochloromethaneND
5.00 ug/L 01/20/16 18:51 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 18:51 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 18:51 1DibromomethaneND
0.500 ug/L 01/20/16 18:51 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 18:51 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 18:51 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 18:51 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 18:51 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 18:51 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 18:51 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 18:51 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 18:51 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 18:51 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 18:51 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 18:51 1Diisopropyl ether ND
100 ug/L 01/20/16 18:51 1EthanolND
0.500 ug/L 01/20/16 18:51 1EthylbenzeneND
1.00 ug/L 01/20/16 18:51 1HexachlorobutadieneND
1.00 ug/L 01/20/16 18:51 1IsopropylbenzeneND
5.00 ug/L 01/20/16 18:51 1Methylene Chloride ND
0.500 ug/L 01/20/16 18:51 1Methyl tert-butyl ether ND
5.00 ug/L 01/20/16 18:51 1NaphthaleneND
0.500 ug/L 01/20/16 18:51 1n-Butylbenzene ND
0.500 ug/L 01/20/16 18:51 1N-Propylbenzene ND
0.500 ug/L 01/20/16 18:51 1p-Isopropyltoluene ND
0.500 ug/L 01/20/16 18:51 1sec-Butylbenzene ND
0.500 ug/L 01/20/16 18:51 1StyreneND
0.500 ug/L 01/20/16 18:51 1tert-Butylbenzene ND
0.500 ug/L 01/20/16 18:51 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 18:51 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 18:51 1TetrachloroetheneND
0.500 ug/L 01/20/16 18:51 1TolueneND
0.500 ug/L 01/20/16 18:51 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-1Client Sample ID: MW-2
Matrix: Ground WaterDate Collected: 01/14/16 09:45
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 18:51 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 18:51 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 18:51 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 18:51 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 18:51 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 18:51 1TrichloroetheneND
0.500 ug/L 01/20/16 18:51 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 18:51 11,2,3-Trichloropropane ND
0.500 ug/L 01/20/16 18:51 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/20/16 18:51 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/20/16 18:51 1Vinyl chloride ND
1.00 ug/L 01/20/16 18:51 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)95 70-130 01/20/16 18:51 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)109 01/20/16 18:51 170-130
1,2-Dichloroethane-d4 (Surr)113 01/20/16 18:51 170-130
Toluene-d8 (Surr)85 01/20/16 18:51 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-2Client Sample ID: MW-3R
Matrix: Ground WaterDate Collected: 01/14/16 11:30
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene 33.4 0.500 ug/L 01/20/16 20:09 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 20:09 1BromobenzeneND
0.500 ug/L 01/20/16 20:09 1BromochloromethaneND
0.500 ug/L 01/20/16 20:09 1BromodichloromethaneND
0.500 ug/L 01/20/16 20:09 1BromoformND
0.500 ug/L 01/20/16 20:09 1BromomethaneND
0.500 ug/L 01/20/16 20:09 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 20:09 1ChlorobenzeneND
0.500 ug/L 01/20/16 20:09 1ChloroethaneND
0.500 ug/L 01/20/16 20:09 1ChloroformND
0.500 ug/L 01/20/16 20:09 1ChloromethaneND
0.500 ug/L 01/20/16 20:09 12-Chlorotoluene ND
0.500 ug/L 01/20/16 20:09 14-Chlorotoluene ND
0.500 ug/L 01/20/16 20:09 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 20:09 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 20:09 1DibromochloromethaneND
5.00 ug/L 01/20/16 20:09 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 20:09 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 20:09 1DibromomethaneND
0.500 ug/L 01/20/16 20:09 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 20:09 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 20:09 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 20:09 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 20:09 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 20:09 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 20:09 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 20:09 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 20:09 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 20:09 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 20:09 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 20:09 1Diisopropyl ether ND
100 ug/L 01/20/16 20:09 1EthanolND
0.500 ug/L 01/20/16 20:09 1Ethylbenzene158
1.00 ug/L 01/20/16 20:09 1HexachlorobutadieneND
1.00 ug/L 01/20/16 20:09 1Isopropylbenzene22.0
5.00 ug/L 01/20/16 20:09 1Methylene Chloride ND
0.500 ug/L 01/20/16 20:09 1Methyl tert-butyl ether ND
5.00 ug/L 01/20/16 20:09 1Naphthalene91.4
0.500 ug/L 01/20/16 20:09 1n-Butylbenzene 21.0
0.500 ug/L 01/20/16 20:09 1N-Propylbenzene 73.8
0.500 ug/L 01/20/16 20:09 1p-Isopropyltoluene 2.25
0.500 ug/L 01/20/16 20:09 1sec-Butylbenzene 6.38
0.500 ug/L 01/20/16 20:09 1StyreneND
0.500 ug/L 01/20/16 20:09 1tert-Butylbenzene ND
0.500 ug/L 01/20/16 20:09 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 20:09 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 20:09 1TetrachloroetheneND
0.500 ug/L 01/20/16 20:09 1Toluene9.08
0.500 ug/L 01/20/16 20:09 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-2Client Sample ID: MW-3R
Matrix: Ground WaterDate Collected: 01/14/16 11:30
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 20:09 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 20:09 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 20:09 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 20:09 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 20:09 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 20:09 1TrichloroetheneND
0.500 ug/L 01/20/16 20:09 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 20:09 11,2,3-Trichloropropane ND
0.500 ug/L 01/20/16 20:09 11,2,4-Trimethylbenzene 92.5
0.500 ug/L 01/20/16 20:09 11,3,5-Trimethylbenzene 19.2
0.500 ug/L 01/20/16 20:09 1Vinyl chloride ND
1.00 ug/L 01/20/16 20:09 1Xylenes, Total 151
4-Bromofluorobenzene (Surr)97 70-130 01/20/16 20:09 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)109 01/20/16 20:09 170-130
1,2-Dichloroethane-d4 (Surr)109 01/20/16 20:09 170-130
Toluene-d8 (Surr)83 01/20/16 20:09 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-3Client Sample ID: MW-4
Matrix: Ground WaterDate Collected: 01/14/16 09:25
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/20/16 19:17 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 19:17 1BromobenzeneND
0.500 ug/L 01/20/16 19:17 1BromochloromethaneND
0.500 ug/L 01/20/16 19:17 1BromodichloromethaneND
0.500 ug/L 01/20/16 19:17 1BromoformND
0.500 ug/L 01/20/16 19:17 1BromomethaneND
0.500 ug/L 01/20/16 19:17 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 19:17 1ChlorobenzeneND
0.500 ug/L 01/20/16 19:17 1ChloroethaneND
0.500 ug/L 01/20/16 19:17 1ChloroformND
0.500 ug/L 01/20/16 19:17 1ChloromethaneND
0.500 ug/L 01/20/16 19:17 12-Chlorotoluene ND
0.500 ug/L 01/20/16 19:17 14-Chlorotoluene ND
0.500 ug/L 01/20/16 19:17 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 19:17 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 19:17 1DibromochloromethaneND
5.00 ug/L 01/20/16 19:17 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 19:17 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 19:17 1DibromomethaneND
0.500 ug/L 01/20/16 19:17 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:17 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:17 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:17 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 19:17 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 19:17 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 19:17 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 19:17 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 19:17 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 19:17 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 19:17 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 19:17 1Diisopropyl ether ND
100 ug/L 01/20/16 19:17 1EthanolND
0.500 ug/L 01/20/16 19:17 1EthylbenzeneND
1.00 ug/L 01/20/16 19:17 1HexachlorobutadieneND
1.00 ug/L 01/20/16 19:17 1IsopropylbenzeneND
5.00 ug/L 01/20/16 19:17 1Methylene Chloride ND
0.500 ug/L 01/20/16 19:17 1Methyl tert-butyl ether ND
5.00 ug/L 01/20/16 19:17 1NaphthaleneND
0.500 ug/L 01/20/16 19:17 1n-Butylbenzene ND
0.500 ug/L 01/20/16 19:17 1N-Propylbenzene ND
0.500 ug/L 01/20/16 19:17 1p-Isopropyltoluene ND
0.500 ug/L 01/20/16 19:17 1sec-Butylbenzene ND
0.500 ug/L 01/20/16 19:17 1StyreneND
0.500 ug/L 01/20/16 19:17 1tert-Butylbenzene ND
0.500 ug/L 01/20/16 19:17 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 19:17 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 19:17 1TetrachloroetheneND
0.500 ug/L 01/20/16 19:17 1TolueneND
0.500 ug/L 01/20/16 19:17 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-3Client Sample ID: MW-4
Matrix: Ground WaterDate Collected: 01/14/16 09:25
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 19:17 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 19:17 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 19:17 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 19:17 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 19:17 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 19:17 1TrichloroetheneND
0.500 ug/L 01/20/16 19:17 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 19:17 11,2,3-Trichloropropane ND
0.500 ug/L 01/20/16 19:17 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/20/16 19:17 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/20/16 19:17 1Vinyl chloride ND
1.00 ug/L 01/20/16 19:17 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)94 70-130 01/20/16 19:17 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)107 01/20/16 19:17 170-130
1,2-Dichloroethane-d4 (Surr)113 01/20/16 19:17 170-130
Toluene-d8 (Surr)86 01/20/16 19:17 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-4Client Sample ID: MW-5
Matrix: Ground WaterDate Collected: 01/14/16 10:10
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene 27.6 0.500 ug/L 01/20/16 21:01 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 21:01 1BromobenzeneND
0.500 ug/L 01/20/16 21:01 1BromochloromethaneND
0.500 ug/L 01/20/16 21:01 1BromodichloromethaneND
0.500 ug/L 01/20/16 21:01 1BromoformND
0.500 ug/L 01/20/16 21:01 1BromomethaneND
0.500 ug/L 01/20/16 21:01 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 21:01 1ChlorobenzeneND
0.500 ug/L 01/20/16 21:01 1ChloroethaneND
0.500 ug/L 01/20/16 21:01 1ChloroformND
0.500 ug/L 01/20/16 21:01 1ChloromethaneND
0.500 ug/L 01/20/16 21:01 12-Chlorotoluene ND
0.500 ug/L 01/20/16 21:01 14-Chlorotoluene ND
0.500 ug/L 01/20/16 21:01 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 21:01 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 21:01 1DibromochloromethaneND
5.00 ug/L 01/20/16 21:01 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 21:01 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 21:01 1DibromomethaneND
0.500 ug/L 01/20/16 21:01 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:01 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:01 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:01 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 21:01 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 21:01 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 21:01 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 21:01 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 21:01 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 21:01 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 21:01 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 21:01 1Diisopropyl ether ND
100 ug/L 01/20/16 21:01 1EthanolND
2.50 ug/L 01/20/16 21:28 5Ethylbenzene249
1.00 ug/L 01/20/16 21:01 1HexachlorobutadieneND
1.00 ug/L 01/20/16 21:01 1Isopropylbenzene28.8
5.00 ug/L 01/20/16 21:01 1Methylene Chloride ND
0.500 ug/L 01/20/16 21:01 1Methyl tert-butyl ether ND
5.00 ug/L 01/20/16 21:01 1Naphthalene161
0.500 ug/L 01/20/16 21:01 1n-Butylbenzene 13.0
0.500 ug/L 01/20/16 21:01 1N-Propylbenzene 75.6
0.500 ug/L 01/20/16 21:01 1p-Isopropyltoluene 1.69
0.500 ug/L 01/20/16 21:01 1sec-Butylbenzene 7.04
0.500 ug/L 01/20/16 21:01 1StyreneND
0.500 ug/L 01/20/16 21:01 1tert-Butylbenzene ND
0.500 ug/L 01/20/16 21:01 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 21:01 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 21:01 1TetrachloroetheneND
0.500 ug/L 01/20/16 21:01 1Toluene7.10
0.500 ug/L 01/20/16 21:01 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-4Client Sample ID: MW-5
Matrix: Ground WaterDate Collected: 01/14/16 10:10
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 21:01 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 21:01 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 21:01 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 21:01 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 21:01 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 21:01 1TrichloroetheneND
0.500 ug/L 01/20/16 21:01 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 21:01 11,2,3-Trichloropropane ND
2.50 ug/L 01/20/16 21:28 51,2,4-Trimethylbenzene 281
0.500 ug/L 01/20/16 21:01 11,3,5-Trimethylbenzene 43.7
0.500 ug/L 01/20/16 21:01 1Vinyl chloride ND
5.00 ug/L 01/20/16 21:28 5Xylenes, Total 438
4-Bromofluorobenzene (Surr)101 70-130 01/20/16 21:01 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)100 01/20/16 21:28 570-130
Dibromofluoromethane (Surr)106 01/20/16 21:01 170-130
Dibromofluoromethane (Surr)103 01/20/16 21:28 570-130
1,2-Dichloroethane-d4 (Surr)105 01/20/16 21:01 170-130
1,2-Dichloroethane-d4 (Surr)105 01/20/16 21:28 570-130
Toluene-d8 (Surr)84 01/20/16 21:01 170-130
Toluene-d8 (Surr)83 01/20/16 21:28 570-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-5Client Sample ID: MW-6
Matrix: Ground WaterDate Collected: 01/14/16 09:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/20/16 19:43 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 19:43 1BromobenzeneND
0.500 ug/L 01/20/16 19:43 1BromochloromethaneND
0.500 ug/L 01/20/16 19:43 1BromodichloromethaneND
0.500 ug/L 01/20/16 19:43 1BromoformND
0.500 ug/L 01/20/16 19:43 1BromomethaneND
0.500 ug/L 01/20/16 19:43 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 19:43 1ChlorobenzeneND
0.500 ug/L 01/20/16 19:43 1ChloroethaneND
0.500 ug/L 01/20/16 19:43 1ChloroformND
0.500 ug/L 01/20/16 19:43 1ChloromethaneND
0.500 ug/L 01/20/16 19:43 12-Chlorotoluene ND
0.500 ug/L 01/20/16 19:43 14-Chlorotoluene ND
0.500 ug/L 01/20/16 19:43 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 19:43 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 19:43 1DibromochloromethaneND
5.00 ug/L 01/20/16 19:43 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 19:43 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 19:43 1DibromomethaneND
0.500 ug/L 01/20/16 19:43 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:43 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:43 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 19:43 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 19:43 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 19:43 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 19:43 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 19:43 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 19:43 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 19:43 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 19:43 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 19:43 1Diisopropyl ether ND
100 ug/L 01/20/16 19:43 1EthanolND
0.500 ug/L 01/20/16 19:43 1EthylbenzeneND
1.00 ug/L 01/20/16 19:43 1HexachlorobutadieneND
1.00 ug/L 01/20/16 19:43 1IsopropylbenzeneND
5.00 ug/L 01/20/16 19:43 1Methylene Chloride ND
0.500 ug/L 01/20/16 19:43 1Methyl tert-butyl ether ND
5.00 ug/L 01/20/16 19:43 1NaphthaleneND
0.500 ug/L 01/20/16 19:43 1n-Butylbenzene ND
0.500 ug/L 01/20/16 19:43 1N-Propylbenzene ND
0.500 ug/L 01/20/16 19:43 1p-Isopropyltoluene ND
0.500 ug/L 01/20/16 19:43 1sec-Butylbenzene ND
0.500 ug/L 01/20/16 19:43 1StyreneND
0.500 ug/L 01/20/16 19:43 1tert-Butylbenzene ND
0.500 ug/L 01/20/16 19:43 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 19:43 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 19:43 1TetrachloroetheneND
0.500 ug/L 01/20/16 19:43 1TolueneND
0.500 ug/L 01/20/16 19:43 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-5Client Sample ID: MW-6
Matrix: Ground WaterDate Collected: 01/14/16 09:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 19:43 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 19:43 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 19:43 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 19:43 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 19:43 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 19:43 1TrichloroetheneND
0.500 ug/L 01/20/16 19:43 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 19:43 11,2,3-Trichloropropane ND
0.500 ug/L 01/20/16 19:43 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/20/16 19:43 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/20/16 19:43 1Vinyl chloride ND
1.00 ug/L 01/20/16 19:43 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)94 70-130 01/20/16 19:43 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)113 01/20/16 19:43 170-130
1,2-Dichloroethane-d4 (Surr)113 01/20/16 19:43 170-130
Toluene-d8 (Surr)87 01/20/16 19:43 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-6Client Sample ID: MW-7
Matrix: Ground WaterDate Collected: 01/14/16 12:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/21/16 02:40 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 02:40 1BromobenzeneND
0.500 ug/L 01/21/16 02:40 1BromochloromethaneND
0.500 ug/L 01/21/16 02:40 1BromodichloromethaneND
0.500 ug/L 01/21/16 02:40 1BromoformND
0.500 ug/L 01/21/16 02:40 1BromomethaneND
0.500 ug/L 01/21/16 02:40 1Carbon tetrachloride ND F1
0.500 ug/L 01/21/16 02:40 1ChlorobenzeneND
0.500 ug/L 01/21/16 02:40 1ChloroethaneND
0.500 ug/L 01/21/16 02:40 1ChloroformND
0.500 ug/L 01/21/16 02:40 1ChloromethaneND
0.500 ug/L 01/21/16 02:40 12-Chlorotoluene ND
0.500 ug/L 01/21/16 02:40 14-Chlorotoluene ND
0.500 ug/L 01/21/16 02:40 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/21/16 02:40 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/21/16 02:40 1DibromochloromethaneND
5.00 ug/L 01/21/16 02:40 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/21/16 02:40 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/21/16 02:40 1DibromomethaneND
0.500 ug/L 01/21/16 02:40 11,2-Dichlorobenzene ND
0.500 ug/L 01/21/16 02:40 11,3-Dichlorobenzene ND
0.500 ug/L 01/21/16 02:40 11,4-Dichlorobenzene ND
0.500 ug/L 01/21/16 02:40 1DichlorodifluoromethaneNDF1
0.500 ug/L 01/21/16 02:40 11,1-Dichloroethane ND
0.500 ug/L 01/21/16 02:40 11,2-Dichloroethane ND
0.500 ug/L 01/21/16 02:40 11,1-Dichloroethene ND
0.500 ug/L 01/21/16 02:40 11,2-Dichloropropane ND
0.500 ug/L 01/21/16 02:40 11,3-Dichloropropane ND
0.500 ug/L 01/21/16 02:40 12,2-Dichloropropane ND F1
0.500 ug/L 01/21/16 02:40 11,1-Dichloropropene ND
0.500 ug/L 01/21/16 02:40 1Diisopropyl ether ND
100 ug/L 01/21/16 02:40 1EthanolNDF2
0.500 ug/L 01/21/16 02:40 1EthylbenzeneND
1.00 ug/L 01/21/16 02:40 1HexachlorobutadieneNDF1
1.00 ug/L 01/21/16 02:40 1IsopropylbenzeneND
5.00 ug/L 01/21/16 02:40 1Methylene Chloride ND
0.500 ug/L 01/21/16 02:40 1Methyl tert-butyl ether ND
5.00 ug/L 01/21/16 02:40 1NaphthaleneND
0.500 ug/L 01/21/16 02:40 1n-Butylbenzene ND
0.500 ug/L 01/21/16 02:40 1N-Propylbenzene ND
0.500 ug/L 01/21/16 02:40 1p-Isopropyltoluene ND
0.500 ug/L 01/21/16 02:40 1sec-Butylbenzene ND
0.500 ug/L 01/21/16 02:40 1StyreneND
0.500 ug/L 01/21/16 02:40 1tert-Butylbenzene ND
0.500 ug/L 01/21/16 02:40 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 02:40 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 02:40 1TetrachloroetheneND
0.500 ug/L 01/21/16 02:40 1TolueneND
0.500 ug/L 01/21/16 02:40 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-6Client Sample ID: MW-7
Matrix: Ground WaterDate Collected: 01/14/16 12:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/21/16 02:40 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 02:40 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/21/16 02:40 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/21/16 02:40 11,1,1-Trichloroethane ND
0.500 ug/L 01/21/16 02:40 11,1,2-Trichloroethane ND
0.500 ug/L 01/21/16 02:40 1TrichloroetheneND
0.500 ug/L 01/21/16 02:40 1TrichlorofluoromethaneND
0.500 ug/L 01/21/16 02:40 11,2,3-Trichloropropane ND
0.500 ug/L 01/21/16 02:40 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/21/16 02:40 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/21/16 02:40 1Vinyl chloride ND
1.00 ug/L 01/21/16 02:40 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)98 70-130 01/21/16 02:40 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)105 01/21/16 02:40 170-130
1,2-Dichloroethane-d4 (Surr)109 01/21/16 02:40 170-130
Toluene-d8 (Surr)86 01/21/16 02:40 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-7Client Sample ID: MW-8
Matrix: Ground WaterDate Collected: 01/14/16 12:15
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/21/16 03:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:06 1BromobenzeneND
0.500 ug/L 01/21/16 03:06 1BromochloromethaneND
0.500 ug/L 01/21/16 03:06 1BromodichloromethaneND
0.500 ug/L 01/21/16 03:06 1BromoformND
0.500 ug/L 01/21/16 03:06 1BromomethaneND
0.500 ug/L 01/21/16 03:06 1Carbon tetrachloride ND
0.500 ug/L 01/21/16 03:06 1ChlorobenzeneND
0.500 ug/L 01/21/16 03:06 1ChloroethaneND
0.500 ug/L 01/21/16 03:06 1ChloroformND
0.500 ug/L 01/21/16 03:06 1ChloromethaneND
0.500 ug/L 01/21/16 03:06 12-Chlorotoluene ND
0.500 ug/L 01/21/16 03:06 14-Chlorotoluene ND
0.500 ug/L 01/21/16 03:06 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/21/16 03:06 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/21/16 03:06 1DibromochloromethaneND
5.00 ug/L 01/21/16 03:06 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/21/16 03:06 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/21/16 03:06 1DibromomethaneND
0.500 ug/L 01/21/16 03:06 11,2-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:06 11,3-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:06 11,4-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:06 1DichlorodifluoromethaneND
0.500 ug/L 01/21/16 03:06 11,1-Dichloroethane ND
0.500 ug/L 01/21/16 03:06 11,2-Dichloroethane ND
0.500 ug/L 01/21/16 03:06 11,1-Dichloroethene ND
0.500 ug/L 01/21/16 03:06 11,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:06 11,3-Dichloropropane ND
0.500 ug/L 01/21/16 03:06 12,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:06 11,1-Dichloropropene ND
0.500 ug/L 01/21/16 03:06 1Diisopropyl ether ND
100 ug/L 01/21/16 03:06 1EthanolND
0.500 ug/L 01/21/16 03:06 1EthylbenzeneND
1.00 ug/L 01/21/16 03:06 1HexachlorobutadieneND
1.00 ug/L 01/21/16 03:06 1IsopropylbenzeneND
5.00 ug/L 01/21/16 03:06 1Methylene Chloride ND
0.500 ug/L 01/21/16 03:06 1Methyl tert-butyl ether ND
5.00 ug/L 01/21/16 03:06 1NaphthaleneND
0.500 ug/L 01/21/16 03:06 1n-Butylbenzene ND
0.500 ug/L 01/21/16 03:06 1N-Propylbenzene ND
0.500 ug/L 01/21/16 03:06 1p-Isopropyltoluene ND
0.500 ug/L 01/21/16 03:06 1sec-Butylbenzene ND
0.500 ug/L 01/21/16 03:06 1StyreneND
0.500 ug/L 01/21/16 03:06 1tert-Butylbenzene ND
0.500 ug/L 01/21/16 03:06 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:06 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:06 1TetrachloroetheneND
0.500 ug/L 01/21/16 03:06 1TolueneND
0.500 ug/L 01/21/16 03:06 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-7Client Sample ID: MW-8
Matrix: Ground WaterDate Collected: 01/14/16 12:15
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/21/16 03:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:06 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:06 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:06 11,1,1-Trichloroethane ND
0.500 ug/L 01/21/16 03:06 11,1,2-Trichloroethane ND
0.500 ug/L 01/21/16 03:06 1TrichloroetheneND
0.500 ug/L 01/21/16 03:06 1TrichlorofluoromethaneND
0.500 ug/L 01/21/16 03:06 11,2,3-Trichloropropane ND
0.500 ug/L 01/21/16 03:06 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:06 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:06 1Vinyl chloride ND
1.00 ug/L 01/21/16 03:06 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)94 70-130 01/21/16 03:06 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)108 01/21/16 03:06 170-130
1,2-Dichloroethane-d4 (Surr)108 01/21/16 03:06 170-130
Toluene-d8 (Surr)85 01/21/16 03:06 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-8Client Sample ID: MW-9
Matrix: Ground WaterDate Collected: 01/14/16 12:55
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/21/16 03:32 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:32 1BromobenzeneND
0.500 ug/L 01/21/16 03:32 1BromochloromethaneND
0.500 ug/L 01/21/16 03:32 1BromodichloromethaneND
0.500 ug/L 01/21/16 03:32 1BromoformND
0.500 ug/L 01/21/16 03:32 1BromomethaneND
0.500 ug/L 01/21/16 03:32 1Carbon tetrachloride ND
0.500 ug/L 01/21/16 03:32 1ChlorobenzeneND
0.500 ug/L 01/21/16 03:32 1ChloroethaneND
0.500 ug/L 01/21/16 03:32 1ChloroformND
0.500 ug/L 01/21/16 03:32 1ChloromethaneND
0.500 ug/L 01/21/16 03:32 12-Chlorotoluene ND
0.500 ug/L 01/21/16 03:32 14-Chlorotoluene ND
0.500 ug/L 01/21/16 03:32 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/21/16 03:32 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/21/16 03:32 1DibromochloromethaneND
5.00 ug/L 01/21/16 03:32 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/21/16 03:32 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/21/16 03:32 1DibromomethaneND
0.500 ug/L 01/21/16 03:32 11,2-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:32 11,3-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:32 11,4-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:32 1DichlorodifluoromethaneND
0.500 ug/L 01/21/16 03:32 11,1-Dichloroethane ND
0.500 ug/L 01/21/16 03:32 11,2-Dichloroethane ND
0.500 ug/L 01/21/16 03:32 11,1-Dichloroethene ND
0.500 ug/L 01/21/16 03:32 11,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:32 11,3-Dichloropropane ND
0.500 ug/L 01/21/16 03:32 12,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:32 11,1-Dichloropropene ND
0.500 ug/L 01/21/16 03:32 1Diisopropyl ether ND
100 ug/L 01/21/16 03:32 1EthanolND
0.500 ug/L 01/21/16 03:32 1EthylbenzeneND
1.00 ug/L 01/21/16 03:32 1HexachlorobutadieneND
1.00 ug/L 01/21/16 03:32 1IsopropylbenzeneND
5.00 ug/L 01/21/16 03:32 1Methylene Chloride ND
0.500 ug/L 01/21/16 03:32 1Methyl tert-butyl ether ND
5.00 ug/L 01/21/16 03:32 1NaphthaleneND
0.500 ug/L 01/21/16 03:32 1n-Butylbenzene ND
0.500 ug/L 01/21/16 03:32 1N-Propylbenzene ND
0.500 ug/L 01/21/16 03:32 1p-Isopropyltoluene ND
0.500 ug/L 01/21/16 03:32 1sec-Butylbenzene ND
0.500 ug/L 01/21/16 03:32 1StyreneND
0.500 ug/L 01/21/16 03:32 1tert-Butylbenzene ND
0.500 ug/L 01/21/16 03:32 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:32 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:32 1TetrachloroetheneND
0.500 ug/L 01/21/16 03:32 1TolueneND
0.500 ug/L 01/21/16 03:32 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-8Client Sample ID: MW-9
Matrix: Ground WaterDate Collected: 01/14/16 12:55
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/21/16 03:32 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:32 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:32 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:32 11,1,1-Trichloroethane ND
0.500 ug/L 01/21/16 03:32 11,1,2-Trichloroethane ND
0.500 ug/L 01/21/16 03:32 1TrichloroetheneND
0.500 ug/L 01/21/16 03:32 1TrichlorofluoromethaneND
0.500 ug/L 01/21/16 03:32 11,2,3-Trichloropropane ND
0.500 ug/L 01/21/16 03:32 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:32 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:32 1Vinyl chloride ND
1.00 ug/L 01/21/16 03:32 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)97 70-130 01/21/16 03:32 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)106 01/21/16 03:32 170-130
1,2-Dichloroethane-d4 (Surr)111 01/21/16 03:32 170-130
Toluene-d8 (Surr)88 01/21/16 03:32 170-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-9Client Sample ID: MW-10
Matrix: Ground WaterDate Collected: 01/14/16 12:35
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene 36.5 0.500 ug/L 01/20/16 21:54 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 21:54 1BromobenzeneND
0.500 ug/L 01/20/16 21:54 1BromochloromethaneND
0.500 ug/L 01/20/16 21:54 1BromodichloromethaneND
0.500 ug/L 01/20/16 21:54 1BromoformND
0.500 ug/L 01/20/16 21:54 1BromomethaneND
0.500 ug/L 01/20/16 21:54 1Carbon tetrachloride ND *
0.500 ug/L 01/20/16 21:54 1ChlorobenzeneND
0.500 ug/L 01/20/16 21:54 1ChloroethaneND
0.500 ug/L 01/20/16 21:54 1ChloroformND
0.500 ug/L 01/20/16 21:54 1ChloromethaneND
0.500 ug/L 01/20/16 21:54 12-Chlorotoluene ND
0.500 ug/L 01/20/16 21:54 14-Chlorotoluene ND
0.500 ug/L 01/20/16 21:54 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/20/16 21:54 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/20/16 21:54 1DibromochloromethaneND
5.00 ug/L 01/20/16 21:54 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/20/16 21:54 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/20/16 21:54 1DibromomethaneND
0.500 ug/L 01/20/16 21:54 11,2-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:54 11,3-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:54 11,4-Dichlorobenzene ND
0.500 ug/L 01/20/16 21:54 1DichlorodifluoromethaneND*
0.500 ug/L 01/20/16 21:54 11,1-Dichloroethane ND
0.500 ug/L 01/20/16 21:54 11,2-Dichloroethane ND
0.500 ug/L 01/20/16 21:54 11,1-Dichloroethene ND
0.500 ug/L 01/20/16 21:54 11,2-Dichloropropane ND
0.500 ug/L 01/20/16 21:54 11,3-Dichloropropane ND
0.500 ug/L 01/20/16 21:54 12,2-Dichloropropane ND
0.500 ug/L 01/20/16 21:54 11,1-Dichloropropene ND
0.500 ug/L 01/20/16 21:54 1Diisopropyl ether ND
100 ug/L 01/20/16 21:54 1EthanolND
5.00 ug/L 01/20/16 22:20 10Ethylbenzene405
1.00 ug/L 01/20/16 21:54 1HexachlorobutadieneND
1.00 ug/L 01/20/16 21:54 1Isopropylbenzene85.0
5.00 ug/L 01/20/16 21:54 1Methylene Chloride ND
0.500 ug/L 01/20/16 21:54 1Methyl tert-butyl ether ND
50.0 ug/L 01/20/16 22:20 10Naphthalene449
0.500 ug/L 01/20/16 21:54 1n-Butylbenzene 23.5
5.00 ug/L 01/20/16 22:20 10N-Propylbenzene 226
0.500 ug/L 01/20/16 21:54 1p-Isopropyltoluene 1.84
0.500 ug/L 01/20/16 21:54 1sec-Butylbenzene 12.3
0.500 ug/L 01/20/16 21:54 1StyreneND
0.500 ug/L 01/20/16 21:54 1tert-Butylbenzene 0.610
0.500 ug/L 01/20/16 21:54 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 21:54 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/20/16 21:54 1TetrachloroetheneND
0.500 ug/L 01/20/16 21:54 1Toluene9.48
0.500 ug/L 01/20/16 21:54 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-9Client Sample ID: MW-10
Matrix: Ground WaterDate Collected: 01/14/16 12:35
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/20/16 21:54 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/20/16 21:54 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/20/16 21:54 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/20/16 21:54 11,1,1-Trichloroethane ND
0.500 ug/L 01/20/16 21:54 11,1,2-Trichloroethane ND
0.500 ug/L 01/20/16 21:54 1TrichloroetheneND
0.500 ug/L 01/20/16 21:54 1TrichlorofluoromethaneND
0.500 ug/L 01/20/16 21:54 11,2,3-Trichloropropane ND
0.500 ug/L 01/20/16 21:54 11,2,4-Trimethylbenzene 185
0.500 ug/L 01/20/16 21:54 11,3,5-Trimethylbenzene 23.7
0.500 ug/L 01/20/16 21:54 1Vinyl chloride ND
10.0 ug/L 01/20/16 22:20 10Xylenes, Total 595
4-Bromofluorobenzene (Surr)102 70-130 01/20/16 21:54 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)100 01/20/16 22:20 1070-130
Dibromofluoromethane (Surr)103 01/20/16 21:54 170-130
Dibromofluoromethane (Surr)104 01/20/16 22:20 1070-130
1,2-Dichloroethane-d4 (Surr)106 01/20/16 21:54 170-130
1,2-Dichloroethane-d4 (Surr)105 01/20/16 22:20 1070-130
Toluene-d8 (Surr)86 01/20/16 21:54 170-130
Toluene-d8 (Surr)85 01/20/16 22:20 1070-130
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-10Client Sample ID: DW-1
Matrix: Ground WaterDate Collected: 01/14/16 11:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Benzene ND 0.500 ug/L 01/21/16 03:59 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:59 1BromobenzeneND
0.500 ug/L 01/21/16 03:59 1BromochloromethaneND
0.500 ug/L 01/21/16 03:59 1BromodichloromethaneND
0.500 ug/L 01/21/16 03:59 1BromoformND
0.500 ug/L 01/21/16 03:59 1BromomethaneND
0.500 ug/L 01/21/16 03:59 1Carbon tetrachloride ND
0.500 ug/L 01/21/16 03:59 1ChlorobenzeneND
0.500 ug/L 01/21/16 03:59 1ChloroethaneND
0.500 ug/L 01/21/16 03:59 1ChloroformND
0.500 ug/L 01/21/16 03:59 1ChloromethaneND
0.500 ug/L 01/21/16 03:59 12-Chlorotoluene ND
0.500 ug/L 01/21/16 03:59 14-Chlorotoluene ND
0.500 ug/L 01/21/16 03:59 1cis-1,2-Dichloroethene ND
0.500 ug/L 01/21/16 03:59 1cis-1,3-Dichloropropene ND
0.500 ug/L 01/21/16 03:59 1DibromochloromethaneND
5.00 ug/L 01/21/16 03:59 11,2-Dibromo-3-Chloropropane ND
0.500 ug/L 01/21/16 03:59 11,2-Dibromoethane (EDB)ND
0.500 ug/L 01/21/16 03:59 1DibromomethaneND
0.500 ug/L 01/21/16 03:59 11,2-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:59 11,3-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:59 11,4-Dichlorobenzene ND
0.500 ug/L 01/21/16 03:59 1DichlorodifluoromethaneND
0.500 ug/L 01/21/16 03:59 11,1-Dichloroethane ND
0.500 ug/L 01/21/16 03:59 11,2-Dichloroethane ND
0.500 ug/L 01/21/16 03:59 11,1-Dichloroethene ND
0.500 ug/L 01/21/16 03:59 11,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:59 11,3-Dichloropropane ND
0.500 ug/L 01/21/16 03:59 12,2-Dichloropropane ND
0.500 ug/L 01/21/16 03:59 11,1-Dichloropropene ND
0.500 ug/L 01/21/16 03:59 1Diisopropyl ether ND
100 ug/L 01/21/16 03:59 1EthanolND
0.500 ug/L 01/21/16 03:59 1EthylbenzeneND
1.00 ug/L 01/21/16 03:59 1HexachlorobutadieneND
1.00 ug/L 01/21/16 03:59 1IsopropylbenzeneND
5.00 ug/L 01/21/16 03:59 1Methylene Chloride ND
0.500 ug/L 01/21/16 03:59 1Methyl tert-butyl ether 0.705
5.00 ug/L 01/21/16 03:59 1NaphthaleneND
0.500 ug/L 01/21/16 03:59 1n-Butylbenzene ND
0.500 ug/L 01/21/16 03:59 1N-Propylbenzene ND
0.500 ug/L 01/21/16 03:59 1p-Isopropyltoluene ND
0.500 ug/L 01/21/16 03:59 1sec-Butylbenzene ND
0.500 ug/L 01/21/16 03:59 1StyreneND
0.500 ug/L 01/21/16 03:59 1tert-Butylbenzene ND
0.500 ug/L 01/21/16 03:59 11,1,1,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:59 11,1,2,2-Tetrachloroethane ND
0.500 ug/L 01/21/16 03:59 1TetrachloroetheneND
0.500 ug/L 01/21/16 03:59 1TolueneND
0.500 ug/L 01/21/16 03:59 1trans-1,2-Dichloroethene ND
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Client Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Lab Sample ID: 490-95871-10Client Sample ID: DW-1
Matrix: Ground WaterDate Collected: 01/14/16 11:00
Date Received: 01/15/16 09:35
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
trans-1,3-Dichloropropene ND 0.500 ug/L 01/21/16 03:59 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.500 ug/L 01/21/16 03:59 11,2,3-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:59 11,2,4-Trichlorobenzene ND
0.500 ug/L 01/21/16 03:59 11,1,1-Trichloroethane ND
0.500 ug/L 01/21/16 03:59 11,1,2-Trichloroethane ND
0.500 ug/L 01/21/16 03:59 1TrichloroetheneND
0.500 ug/L 01/21/16 03:59 1TrichlorofluoromethaneND
0.500 ug/L 01/21/16 03:59 11,2,3-Trichloropropane ND
0.500 ug/L 01/21/16 03:59 11,2,4-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:59 11,3,5-Trimethylbenzene ND
0.500 ug/L 01/21/16 03:59 1Vinyl chloride ND
1.00 ug/L 01/21/16 03:59 1Xylenes, Total ND
4-Bromofluorobenzene (Surr)92 70-130 01/21/16 03:59 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane (Surr)108 01/21/16 03:59 170-130
1,2-Dichloroethane-d4 (Surr)113 01/21/16 03:59 170-130
Toluene-d8 (Surr)86 01/21/16 03:59 170-130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 490-313853/8
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
RL MDL
Benzene ND 0.500 ug/L 01/20/16 14:30 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
ND 0.500 ug/L 01/20/16 14:30 1Bromobenzene
ND 0.500 ug/L 01/20/16 14:30 1Bromochloromethane
ND 0.500 ug/L 01/20/16 14:30 1Bromodichloromethane
ND 0.500 ug/L 01/20/16 14:30 1Bromoform
ND 0.500 ug/L 01/20/16 14:30 1Bromomethane
ND 0.500 ug/L 01/20/16 14:30 1Carbon tetrachloride
ND 0.500 ug/L 01/20/16 14:30 1Chlorobenzene
ND 0.500 ug/L 01/20/16 14:30 1Chloroethane
ND 0.500 ug/L 01/20/16 14:30 1Chloroform
ND 0.500 ug/L 01/20/16 14:30 1Chloromethane
ND 0.500 ug/L 01/20/16 14:30 12-Chlorotoluene
ND 0.500 ug/L 01/20/16 14:30 14-Chlorotoluene
ND 0.500 ug/L 01/20/16 14:30 1cis-1,2-Dichloroethene
ND 0.500 ug/L 01/20/16 14:30 1cis-1,3-Dichloropropene
ND 0.500 ug/L 01/20/16 14:30 1Dibromochloromethane
ND 5.00 ug/L 01/20/16 14:30 11,2-Dibromo-3-Chloropropane
ND 0.500 ug/L 01/20/16 14:30 11,2-Dibromoethane (EDB)
ND 0.500 ug/L 01/20/16 14:30 1Dibromomethane
ND 0.500 ug/L 01/20/16 14:30 11,2-Dichlorobenzene
ND 0.500 ug/L 01/20/16 14:30 11,3-Dichlorobenzene
ND 0.500 ug/L 01/20/16 14:30 11,4-Dichlorobenzene
ND 0.500 ug/L 01/20/16 14:30 1Dichlorodifluoromethane
ND 0.500 ug/L 01/20/16 14:30 11,1-Dichloroethane
ND 0.500 ug/L 01/20/16 14:30 11,2-Dichloroethane
ND 0.500 ug/L 01/20/16 14:30 11,1-Dichloroethene
ND 0.500 ug/L 01/20/16 14:30 11,2-Dichloropropane
ND 0.500 ug/L 01/20/16 14:30 11,3-Dichloropropane
ND 0.500 ug/L 01/20/16 14:30 12,2-Dichloropropane
ND 0.500 ug/L 01/20/16 14:30 11,1-Dichloropropene
ND 0.500 ug/L 01/20/16 14:30 1Diisopropyl ether
ND 100 ug/L 01/20/16 14:30 1Ethanol
ND 0.500 ug/L 01/20/16 14:30 1Ethylbenzene
ND 1.00 ug/L 01/20/16 14:30 1Hexachlorobutadiene
ND 1.00 ug/L 01/20/16 14:30 1Isopropylbenzene
ND 5.00 ug/L 01/20/16 14:30 1Methylene Chloride
ND 0.500 ug/L 01/20/16 14:30 1Methyl tert-butyl ether
ND 5.00 ug/L 01/20/16 14:30 1Naphthalene
ND 0.500 ug/L 01/20/16 14:30 1n-Butylbenzene
ND 0.500 ug/L 01/20/16 14:30 1N-Propylbenzene
ND 0.500 ug/L 01/20/16 14:30 1p-Isopropyltoluene
ND 0.500 ug/L 01/20/16 14:30 1sec-Butylbenzene
ND 0.500 ug/L 01/20/16 14:30 1Styrene
ND 0.500 ug/L 01/20/16 14:30 1tert-Butylbenzene
ND 0.500 ug/L 01/20/16 14:30 11,1,1,2-Tetrachloroethane
ND 0.500 ug/L 01/20/16 14:30 11,1,2,2-Tetrachloroethane
ND 0.500 ug/L 01/20/16 14:30 1Tetrachloroethene
ND 0.500 ug/L 01/20/16 14:30 1Toluene
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 490-313853/8
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
RL MDL
trans-1,2-Dichloroethene ND 0.500 ug/L 01/20/16 14:30 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
ND 0.500 ug/L 01/20/16 14:30 1trans-1,3-Dichloropropene
ND 0.500 ug/L 01/20/16 14:30 11,2,3-Trichlorobenzene
ND 0.500 ug/L 01/20/16 14:30 11,2,4-Trichlorobenzene
ND 0.500 ug/L 01/20/16 14:30 11,1,1-Trichloroethane
ND 0.500 ug/L 01/20/16 14:30 11,1,2-Trichloroethane
ND 0.500 ug/L 01/20/16 14:30 1Trichloroethene
ND 0.500 ug/L 01/20/16 14:30 1Trichlorofluoromethane
ND 0.500 ug/L 01/20/16 14:30 11,2,3-Trichloropropane
ND 0.500 ug/L 01/20/16 14:30 11,2,4-Trimethylbenzene
ND 0.500 ug/L 01/20/16 14:30 11,3,5-Trimethylbenzene
ND 0.500 ug/L 01/20/16 14:30 1Vinyl chloride
ND 1.00 ug/L 01/20/16 14:30 1Xylenes, Total
4-Bromofluorobenzene (Surr)100 70-130 01/20/16 14:30 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
112 01/20/16 14:30 1Dibromofluoromethane (Surr)70-130
112 01/20/16 14:30 11,2-Dichloroethane-d4 (Surr)70-130
87 01/20/16 14:30 1Toluene-d8 (Surr)70-130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-313853/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
Benzene 50.0 52.13 ug/L 104 70-130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
Bromobenzene 50.0 49.25 ug/L 99 70-130
Bromochloromethane 50.0 53.36 ug/L 107 70-130
Bromodichloromethane 50.0 56.78 ug/L 114 70-130
Bromoform 50.0 62.12 ug/L 124 70-130
Bromomethane 50.0 38.31 ug/L 77 60-140
Carbon tetrachloride 50.0 65.70 *ug/L 131 70-130
Chlorobenzene 50.0 50.43 ug/L 101 70-130
Chloroethane 50.0 59.22 ug/L 118 60-140
Chloroform 50.0 54.94 ug/L 110 70-130
Chloromethane 50.0 54.33 ug/L 109 60-140
2-Chlorotoluene 50.0 52.49 ug/L 105 70-130
4-Chlorotoluene 50.0 52.02 ug/L 104 70-130
cis-1,2-Dichloroethene 50.0 54.41 ug/L 109 70-130
cis-1,3-Dichloropropene 50.0 46.31 ug/L 93 70-130
Dibromochloromethane 50.0 57.65 ug/L 115 70-130
1,2-Dibromo-3-Chloropropane 50.0 44.08 ug/L 88 70-130
Dibromomethane 50.0 48.28 ug/L 97 70-130
1,2-Dichlorobenzene 50.0 54.00 ug/L 108 70-130
1,3-Dichlorobenzene 50.0 53.31 ug/L 107 70-130
1,4-Dichlorobenzene 50.0 49.88 ug/L 100 70-130
Dichlorodifluoromethane 50.0 77.95 *ug/L 156 60-140
1,1-Dichloroethane 50.0 53.43 ug/L 107 70-130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-313853/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
1,2-Dichloroethane 50.0 56.01 ug/L 112 70-130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,1-Dichloroethene 50.0 57.21 ug/L 114 70-130
1,2-Dichloropropane 50.0 48.42 ug/L 97 70-130
1,3-Dichloropropane 50.0 40.85 ug/L 82 70-130
2,2-Dichloropropane 50.0 61.58 ug/L 123 70-130
1,1-Dichloropropene 50.0 56.02 ug/L 112 70-130
Diisopropyl ether 50.0 54.55 ug/L 109 70-130
Ethanol 2000 1785 ug/L 89 60-140
Ethylbenzene 50.0 55.89 ug/L 112 70-130
Hexachlorobutadiene 50.0 63.64 ug/L 127 70-130
Isopropylbenzene 50.0 61.17 ug/L 122 70-130
Methylene Chloride 50.0 50.91 ug/L 102 70-130
Methyl tert-butyl ether 50.0 49.81 ug/L 100 70-130
Naphthalene 50.0 48.17 ug/L 96 70-130
n-Butylbenzene 50.0 52.40 ug/L 105 70-130
N-Propylbenzene 50.0 57.58 ug/L 115 70-130
p-Isopropyltoluene 50.0 53.89 ug/L 108 70-130
sec-Butylbenzene 50.0 53.83 ug/L 108 70-130
Styrene 50.0 53.33 ug/L 107 70-130
tert-Butylbenzene 50.0 53.09 ug/L 106 70-130
1,1,1,2-Tetrachloroethane 50.0 55.91 ug/L 112 70-130
1,1,2,2-Tetrachloroethane 50.0 44.57 ug/L 89 70-130
Tetrachloroethene 50.0 50.72 ug/L 101 70-130
Toluene 50.0 45.28 ug/L 91 70-130
trans-1,2-Dichloroethene 50.0 56.47 ug/L 113 70-130
trans-1,3-Dichloropropene 50.0 45.21 ug/L 90 70-130
1,2,3-Trichlorobenzene 50.0 54.21 ug/L 108 70-130
1,2,4-Trichlorobenzene 50.0 54.96 ug/L 110 70-130
1,1,1-Trichloroethane 50.0 60.90 ug/L 122 70-130
1,1,2-Trichloroethane 50.0 40.19 ug/L 80 70-130
Trichloroethene 50.0 55.50 ug/L 111 70-130
Trichlorofluoromethane 50.0 64.11 ug/L 128 60-140
1,2,3-Trichloropropane 50.0 43.27 ug/L 87 70-130
1,2,4-Trimethylbenzene 50.0 52.72 ug/L 105 70-130
1,3,5-Trimethylbenzene 50.0 52.88 ug/L 106 70-130
Vinyl chloride 50.0 56.56 ug/L 113 60-140
Xylenes, Total 100 112.0 ug/L 112 70-130
4-Bromofluorobenzene (Surr)70 -130
Surrogate
97
LCS LCS
Qualifier Limits%Recovery
105Dibromofluoromethane (Surr)70 -130
1061,2-Dichloroethane-d4 (Surr)70 -130
85Toluene-d8 (Surr)70 -130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Matrix SpikeLab Sample ID: 490-95799-B-1 MS
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
Benzene ND 50.0 53.01 ug/L 106 70-130
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits
Bromobenzene ND 50.0 58.10 ug/L 116 70-130
Bromochloromethane ND 50.0 51.74 ug/L 103 70-130
Bromodichloromethane ND 50.0 55.06 ug/L 110 70-130
Bromoform ND 50.0 58.01 ug/L 116 70-130
Bromomethane ND 50.0 32.09 ug/L 64 60-140
Carbon tetrachloride ND *50.0 64.04 ug/L 128 70-130
Chlorobenzene ND 50.0 50.93 ug/L 102 70-130
Chloroethane ND 50.0 56.72 ug/L 113 60-140
Chloroform ND 50.0 54.85 ug/L 110 70-130
Chloromethane ND 50.0 51.43 ug/L 103 60-140
2-Chlorotoluene ND 50.0 54.27 ug/L 109 70-130
4-Chlorotoluene ND 50.0 52.80 ug/L 106 70-130
cis-1,2-Dichloroethene ND 50.0 54.90 ug/L 110 70-130
cis-1,3-Dichloropropene ND 50.0 47.29 ug/L 95 70-130
Dibromochloromethane ND 50.0 49.13 ug/L 98 70-130
1,2-Dibromo-3-Chloropropane ND 50.0 41.28 ug/L 83 70-130
Dibromomethane ND 50.0 48.17 ug/L 96 70-130
1,2-Dichlorobenzene ND 50.0 53.30 ug/L 107 70-130
1,3-Dichlorobenzene ND 50.0 54.04 ug/L 108 70-130
1,4-Dichlorobenzene ND 50.0 50.65 ug/L 101 70-130
Dichlorodifluoromethane ND *50.0 62.89 ug/L 126 60-140
1,1-Dichloroethane ND 50.0 54.18 ug/L 108 70-130
1,2-Dichloroethane ND 50.0 53.29 ug/L 107 70-130
1,1-Dichloroethene ND 50.0 56.90 ug/L 114 70-130
1,2-Dichloropropane ND 50.0 51.19 ug/L 102 70-130
1,3-Dichloropropane ND 50.0 41.92 ug/L 84 70-130
2,2-Dichloropropane ND 50.0 58.16 ug/L 116 70-130
1,1-Dichloropropene ND 50.0 56.93 ug/L 114 70-130
Diisopropyl ether ND 50.0 55.15 ug/L 110 70-130
Ethanol ND 2000 1898 ug/L 95 60-140
Ethylbenzene ND 50.0 56.92 ug/L 114 70-130
Hexachlorobutadiene ND 50.0 64.01 ug/L 128 70-130
Isopropylbenzene ND 50.0 61.06 ug/L 122 70-130
Methylene Chloride ND 50.0 52.70 ug/L 103 70-130
Methyl tert-butyl ether ND 50.0 48.56 ug/L 97 70-130
Naphthalene ND 50.0 50.24 ug/L 100 70-130
n-Butylbenzene ND 50.0 53.00 ug/L 106 70-130
N-Propylbenzene ND 50.0 60.21 ug/L 120 70-130
p-Isopropyltoluene ND 50.0 54.93 ug/L 110 70-130
sec-Butylbenzene ND 50.0 55.80 ug/L 112 70-130
Styrene ND 50.0 53.56 ug/L 107 70-130
tert-Butylbenzene ND 50.0 54.79 ug/L 110 70-130
1,1,1,2-Tetrachloroethane ND 50.0 55.00 ug/L 110 70-130
1,1,2,2-Tetrachloroethane ND 50.0 44.98 ug/L 90 70-130
Tetrachloroethene ND 50.0 51.96 ug/L 104 70-130
Toluene ND 50.0 46.98 ug/L 94 70-130
trans-1,2-Dichloroethene ND 50.0 56.70 ug/L 113 70-130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Matrix SpikeLab Sample ID: 490-95799-B-1 MS
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
trans-1,3-Dichloropropene ND 50.0 44.69 ug/L 89 70-130
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits
1,2,3-Trichlorobenzene ND 50.0 52.61 ug/L 105 70-130
1,2,4-Trichlorobenzene ND 50.0 53.42 ug/L 107 70-130
1,1,1-Trichloroethane ND 50.0 59.73 ug/L 119 70-130
1,1,2-Trichloroethane ND 50.0 40.27 ug/L 81 70-130
Trichloroethene ND 50.0 56.35 ug/L 113 70-130
Trichlorofluoromethane ND 50.0 61.13 ug/L 122 60-140
1,2,3-Trichloropropane ND 50.0 43.60 ug/L 87 70-130
1,2,4-Trimethylbenzene ND 50.0 53.15 ug/L 106 70-130
1,3,5-Trimethylbenzene ND 50.0 54.16 ug/L 108 70-130
Vinyl chloride ND 50.0 55.48 ug/L 111 60-140
Xylenes, Total ND 100 113.3 ug/L 113 70-130
4-Bromofluorobenzene (Surr)70 -130
Surrogate
101
MS MS
Qualifier Limits%Recovery
103Dibromofluoromethane (Surr)70 -130
991,2-Dichloroethane-d4 (Surr)70 -130
87Toluene-d8 (Surr)70 -130
Client Sample ID: Matrix Spike DuplicateLab Sample ID: 490-95799-C-1 MSD
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
Benzene ND 50.0 53.05 ug/L 106 70-130 0 20
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits LimitRPD
RPD
Bromobenzene ND 50.0 50.57 ug/L 101 70-130 14 20
Bromochloromethane ND 50.0 53.04 ug/L 106 70-130 2 20
Bromodichloromethane ND 50.0 55.02 ug/L 110 70-130 0 20
Bromoform ND 50.0 60.74 ug/L 121 70-130 5 20
Bromomethane ND 50.0 37.88 ug/L 76 60-140 17 20
Carbon tetrachloride ND *50.0 64.68 ug/L 129 70-130 1 20
Chlorobenzene ND 50.0 51.69 ug/L 103 70-130 1 20
Chloroethane ND 50.0 54.85 ug/L 110 60-140 3 20
Chloroform ND 50.0 55.09 ug/L 110 70-130 0 20
Chloromethane ND 50.0 51.95 ug/L 104 60-140 1 20
2-Chlorotoluene ND 50.0 53.50 ug/L 107 70-130 1 20
4-Chlorotoluene ND 50.0 52.61 ug/L 105 70-130 0 20
cis-1,2-Dichloroethene ND 50.0 54.59 ug/L 109 70-130 1 20
cis-1,3-Dichloropropene ND 50.0 47.81 ug/L 96 70-130 1 20
Dibromochloromethane ND 50.0 58.12 ug/L 116 70-130 17 20
1,2-Dibromo-3-Chloropropane ND 50.0 42.54 ug/L 85 70-130 3 20
Dibromomethane ND 50.0 48.51 ug/L 97 70-130 1 20
1,2-Dichlorobenzene ND 50.0 52.57 ug/L 105 70-130 1 20
1,3-Dichlorobenzene ND 50.0 53.63 ug/L 107 70-130 1 20
1,4-Dichlorobenzene ND 50.0 50.00 ug/L 100 70-130 1 20
Dichlorodifluoromethane ND *50.0 61.79 ug/L 124 60-140 2 20
1,1-Dichloroethane ND 50.0 54.20 ug/L 108 70-130 0 20
1,2-Dichloroethane ND 50.0 53.88 ug/L 108 70-130 1 20
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Matrix Spike DuplicateLab Sample ID: 490-95799-C-1 MSD
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313853
1,1-Dichloroethene ND 50.0 56.38 ug/L 113 70-130 1 20
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits LimitRPD
RPD
1,2-Dichloropropane ND 50.0 52.00 ug/L 104 70-130 2 20
1,3-Dichloropropane ND 50.0 42.84 ug/L 86 70-130 2 20
2,2-Dichloropropane ND 50.0 57.97 ug/L 116 70-130 0 20
1,1-Dichloropropene ND 50.0 57.56 ug/L 115 70-130 1 20
Diisopropyl ether ND 50.0 55.14 ug/L 110 70-130 0 20
Ethanol ND 2000 1877 ug/L 94 60-140 1 20
Ethylbenzene ND 50.0 57.63 ug/L 115 70-130 1 20
Hexachlorobutadiene ND 50.0 61.53 ug/L 123 70-130 4 20
Isopropylbenzene ND 50.0 61.91 ug/L 124 70-130 1 20
Methylene Chloride ND 50.0 52.80 ug/L 103 70-130 0 20
Methyl tert-butyl ether ND 50.0 48.61 ug/L 97 70-130 0 20
Naphthalene ND 50.0 49.52 ug/L 99 70-130 1 20
n-Butylbenzene ND 50.0 53.10 ug/L 106 70-130 0 20
N-Propylbenzene ND 50.0 59.56 ug/L 119 70-130 1 20
p-Isopropyltoluene ND 50.0 54.58 ug/L 109 70-130 1 20
sec-Butylbenzene ND 50.0 55.20 ug/L 110 70-130 1 20
Styrene ND 50.0 53.88 ug/L 108 70-130 1 20
tert-Butylbenzene ND 50.0 54.72 ug/L 109 70-130 0 20
1,1,1,2-Tetrachloroethane ND 50.0 56.01 ug/L 112 70-130 2 20
1,1,2,2-Tetrachloroethane ND 50.0 44.83 ug/L 90 70-130 0 20
Tetrachloroethene ND 50.0 52.32 ug/L 105 70-130 1 20
Toluene ND 50.0 47.53 ug/L 95 70-130 1 20
trans-1,2-Dichloroethene ND 50.0 56.48 ug/L 113 70-130 0 20
trans-1,3-Dichloropropene ND 50.0 45.31 ug/L 91 70-130 1 20
1,2,3-Trichlorobenzene ND 50.0 53.27 ug/L 107 70-130 1 20
1,2,4-Trichlorobenzene ND 50.0 54.54 ug/L 109 70-130 2 20
1,1,1-Trichloroethane ND 50.0 60.19 ug/L 120 70-130 1 20
1,1,2-Trichloroethane ND 50.0 40.94 ug/L 82 70-130 2 20
Trichloroethene ND 50.0 56.09 ug/L 112 70-130 0 20
Trichlorofluoromethane ND 50.0 61.04 ug/L 122 60-140 0 20
1,2,3-Trichloropropane ND 50.0 44.07 ug/L 88 70-130 1 20
1,2,4-Trimethylbenzene ND 50.0 52.75 ug/L 105 70-130 1 20
1,3,5-Trimethylbenzene ND 50.0 53.71 ug/L 107 70-130 1 20
Vinyl chloride ND 50.0 55.24 ug/L 110 60-140 0 20
Xylenes, Total ND 100 113.9 ug/L 114 70-130 1 20
4-Bromofluorobenzene (Surr)70 -130
Surrogate
99
MSD MSD
Qualifier Limits%Recovery
102Dibromofluoromethane (Surr)70 -130
991,2-Dichloroethane-d4 (Surr)70 -130
87Toluene-d8 (Surr)70 -130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 490-313960/7
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
RL MDL
Benzene ND 0.500 ug/L 01/21/16 02:14 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
ND 0.500 ug/L 01/21/16 02:14 1Bromobenzene
ND 0.500 ug/L 01/21/16 02:14 1Bromochloromethane
ND 0.500 ug/L 01/21/16 02:14 1Bromodichloromethane
ND 0.500 ug/L 01/21/16 02:14 1Bromoform
ND 0.500 ug/L 01/21/16 02:14 1Bromomethane
ND 0.500 ug/L 01/21/16 02:14 1Carbon tetrachloride
ND 0.500 ug/L 01/21/16 02:14 1Chlorobenzene
ND 0.500 ug/L 01/21/16 02:14 1Chloroethane
ND 0.500 ug/L 01/21/16 02:14 1Chloroform
ND 0.500 ug/L 01/21/16 02:14 1Chloromethane
ND 0.500 ug/L 01/21/16 02:14 12-Chlorotoluene
ND 0.500 ug/L 01/21/16 02:14 14-Chlorotoluene
ND 0.500 ug/L 01/21/16 02:14 1cis-1,2-Dichloroethene
ND 0.500 ug/L 01/21/16 02:14 1cis-1,3-Dichloropropene
ND 0.500 ug/L 01/21/16 02:14 1Dibromochloromethane
ND 5.00 ug/L 01/21/16 02:14 11,2-Dibromo-3-Chloropropane
ND 0.500 ug/L 01/21/16 02:14 11,2-Dibromoethane (EDB)
ND 0.500 ug/L 01/21/16 02:14 1Dibromomethane
ND 0.500 ug/L 01/21/16 02:14 11,2-Dichlorobenzene
ND 0.500 ug/L 01/21/16 02:14 11,3-Dichlorobenzene
ND 0.500 ug/L 01/21/16 02:14 11,4-Dichlorobenzene
ND 0.500 ug/L 01/21/16 02:14 1Dichlorodifluoromethane
ND 0.500 ug/L 01/21/16 02:14 11,1-Dichloroethane
ND 0.500 ug/L 01/21/16 02:14 11,2-Dichloroethane
ND 0.500 ug/L 01/21/16 02:14 11,1-Dichloroethene
ND 0.500 ug/L 01/21/16 02:14 11,2-Dichloropropane
ND 0.500 ug/L 01/21/16 02:14 11,3-Dichloropropane
ND 0.500 ug/L 01/21/16 02:14 12,2-Dichloropropane
ND 0.500 ug/L 01/21/16 02:14 11,1-Dichloropropene
ND 0.500 ug/L 01/21/16 02:14 1Diisopropyl ether
ND 100 ug/L 01/21/16 02:14 1Ethanol
ND 0.500 ug/L 01/21/16 02:14 1Ethylbenzene
ND 1.00 ug/L 01/21/16 02:14 1Hexachlorobutadiene
ND 1.00 ug/L 01/21/16 02:14 1Isopropylbenzene
ND 5.00 ug/L 01/21/16 02:14 1Methylene Chloride
ND 0.500 ug/L 01/21/16 02:14 1Methyl tert-butyl ether
ND 5.00 ug/L 01/21/16 02:14 1Naphthalene
ND 0.500 ug/L 01/21/16 02:14 1n-Butylbenzene
ND 0.500 ug/L 01/21/16 02:14 1N-Propylbenzene
ND 0.500 ug/L 01/21/16 02:14 1p-Isopropyltoluene
ND 0.500 ug/L 01/21/16 02:14 1sec-Butylbenzene
ND 0.500 ug/L 01/21/16 02:14 1Styrene
ND 0.500 ug/L 01/21/16 02:14 1tert-Butylbenzene
ND 0.500 ug/L 01/21/16 02:14 11,1,1,2-Tetrachloroethane
ND 0.500 ug/L 01/21/16 02:14 11,1,2,2-Tetrachloroethane
ND 0.500 ug/L 01/21/16 02:14 1Tetrachloroethene
ND 0.500 ug/L 01/21/16 02:14 1Toluene
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 490-313960/7
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
RL MDL
trans-1,2-Dichloroethene ND 0.500 ug/L 01/21/16 02:14 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
ND 0.500 ug/L 01/21/16 02:14 1trans-1,3-Dichloropropene
ND 0.500 ug/L 01/21/16 02:14 11,2,3-Trichlorobenzene
ND 0.500 ug/L 01/21/16 02:14 11,2,4-Trichlorobenzene
ND 0.500 ug/L 01/21/16 02:14 11,1,1-Trichloroethane
ND 0.500 ug/L 01/21/16 02:14 11,1,2-Trichloroethane
ND 0.500 ug/L 01/21/16 02:14 1Trichloroethene
ND 0.500 ug/L 01/21/16 02:14 1Trichlorofluoromethane
ND 0.500 ug/L 01/21/16 02:14 11,2,3-Trichloropropane
ND 0.500 ug/L 01/21/16 02:14 11,2,4-Trimethylbenzene
ND 0.500 ug/L 01/21/16 02:14 11,3,5-Trimethylbenzene
ND 0.500 ug/L 01/21/16 02:14 1Vinyl chloride
ND 1.00 ug/L 01/21/16 02:14 1Xylenes, Total
4-Bromofluorobenzene (Surr)95 70-130 01/21/16 02:14 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
104 01/21/16 02:14 1Dibromofluoromethane (Surr)70-130
107 01/21/16 02:14 11,2-Dichloroethane-d4 (Surr)70-130
84 01/21/16 02:14 1Toluene-d8 (Surr)70-130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-313960/3
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
Benzene 50.0 50.62 ug/L 101 70-130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
Bromobenzene 50.0 56.17 ug/L 112 70-130
Bromochloromethane 50.0 50.68 ug/L 101 70-130
Bromodichloromethane 50.0 54.37 ug/L 109 70-130
Bromoform 50.0 58.36 ug/L 117 70-130
Bromomethane 50.0 42.69 ug/L 85 60-140
Carbon tetrachloride 50.0 59.51 ug/L 119 70-130
Chlorobenzene 50.0 48.79 ug/L 98 70-130
Chloroethane 50.0 53.22 ug/L 106 60-140
Chloroform 50.0 52.74 ug/L 105 70-130
Chloromethane 50.0 53.77 ug/L 108 60-140
2-Chlorotoluene 50.0 51.86 ug/L 104 70-130
4-Chlorotoluene 50.0 50.56 ug/L 101 70-130
cis-1,2-Dichloroethene 50.0 51.38 ug/L 103 70-130
cis-1,3-Dichloropropene 50.0 46.05 ug/L 92 70-130
Dibromochloromethane 50.0 48.57 ug/L 97 70-130
1,2-Dibromo-3-Chloropropane 50.0 39.74 ug/L 79 70-130
Dibromomethane 50.0 48.09 ug/L 96 70-130
1,2-Dichlorobenzene 50.0 51.52 ug/L 103 70-130
1,3-Dichlorobenzene 50.0 52.10 ug/L 104 70-130
1,4-Dichlorobenzene 50.0 48.40 ug/L 97 70-130
Dichlorodifluoromethane 50.0 69.99 ug/L 140 60-140
1,1-Dichloroethane 50.0 51.91 ug/L 104 70-130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 490-313960/3
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
1,2-Dichloroethane 50.0 53.04 ug/L 106 70-130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,1-Dichloroethene 50.0 53.69 ug/L 107 70-130
1,2-Dichloropropane 50.0 49.58 ug/L 99 70-130
1,3-Dichloropropane 50.0 40.56 ug/L 81 70-130
2,2-Dichloropropane 50.0 53.21 ug/L 106 70-130
1,1-Dichloropropene 50.0 52.98 ug/L 106 70-130
Diisopropyl ether 50.0 53.50 ug/L 107 70-130
Ethanol 2000 1680 ug/L 84 60-140
Ethylbenzene 50.0 53.75 ug/L 107 70-130
Hexachlorobutadiene 50.0 59.86 ug/L 120 70-130
Isopropylbenzene 50.0 57.46 ug/L 115 70-130
Methylene Chloride 50.0 49.62 ug/L 99 70-130
Methyl tert-butyl ether 50.0 48.03 ug/L 96 70-130
Naphthalene 50.0 48.02 ug/L 96 70-130
n-Butylbenzene 50.0 49.23 ug/L 98 70-130
N-Propylbenzene 50.0 55.98 ug/L 112 70-130
p-Isopropyltoluene 50.0 51.24 ug/L 102 70-130
sec-Butylbenzene 50.0 52.02 ug/L 104 70-130
Styrene 50.0 51.17 ug/L 102 70-130
tert-Butylbenzene 50.0 51.67 ug/L 103 70-130
1,1,1,2-Tetrachloroethane 50.0 52.95 ug/L 106 70-130
1,1,2,2-Tetrachloroethane 50.0 43.76 ug/L 88 70-130
Tetrachloroethene 50.0 47.79 ug/L 96 70-130
Toluene 50.0 44.19 ug/L 88 70-130
trans-1,2-Dichloroethene 50.0 53.68 ug/L 107 70-130
trans-1,3-Dichloropropene 50.0 43.12 ug/L 86 70-130
1,2,3-Trichlorobenzene 50.0 52.59 ug/L 105 70-130
1,2,4-Trichlorobenzene 50.0 53.12 ug/L 106 70-130
1,1,1-Trichloroethane 50.0 56.76 ug/L 114 70-130
1,1,2-Trichloroethane 50.0 39.41 ug/L 79 70-130
Trichloroethene 50.0 53.76 ug/L 108 70-130
Trichlorofluoromethane 50.0 57.37 ug/L 115 60-140
1,2,3-Trichloropropane 50.0 43.56 ug/L 87 70-130
1,2,4-Trimethylbenzene 50.0 50.92 ug/L 102 70-130
1,3,5-Trimethylbenzene 50.0 51.49 ug/L 103 70-130
Vinyl chloride 50.0 54.03 ug/L 108 60-140
Xylenes, Total 100 108.2 ug/L 108 70-130
4-Bromofluorobenzene (Surr)70 -130
Surrogate
99
LCS LCS
Qualifier Limits%Recovery
101Dibromofluoromethane (Surr)70 -130
1001,2-Dichloroethane-d4 (Surr)70 -130
87Toluene-d8 (Surr)70 -130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 490-313960/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
Benzene 50.0 51.00 ug/L 102 70-130 1 20
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits LimitRPD
RPD
Bromobenzene 50.0 48.04 ug/L 96 70-130 16 20
Bromochloromethane 50.0 50.88 ug/L 102 70-130 0 20
Bromodichloromethane 50.0 54.77 ug/L 110 70-130 1 20
Bromoform 50.0 57.73 ug/L 115 70-130 1 20
Bromomethane 50.0 43.69 ug/L 87 60-140 2 20
Carbon tetrachloride 50.0 60.41 ug/L 121 70-130 2 20
Chlorobenzene 50.0 49.08 ug/L 98 70-130 1 20
Chloroethane 50.0 52.85 ug/L 106 60-140 1 20
Chloroform 50.0 52.57 ug/L 105 70-130 0 20
Chloromethane 50.0 52.82 ug/L 106 60-140 2 20
2-Chlorotoluene 50.0 51.50 ug/L 103 70-130 1 20
4-Chlorotoluene 50.0 50.10 ug/L 100 70-130 1 20
cis-1,2-Dichloroethene 50.0 53.04 ug/L 106 70-130 3 20
cis-1,3-Dichloropropene 50.0 46.07 ug/L 92 70-130 0 20
Dibromochloromethane 50.0 48.69 ug/L 97 70-130 0 20
1,2-Dibromo-3-Chloropropane 50.0 41.74 ug/L 83 70-130 5 20
Dibromomethane 50.0 48.45 ug/L 97 70-130 1 20
1,2-Dichlorobenzene 50.0 51.57 ug/L 103 70-130 0 20
1,3-Dichlorobenzene 50.0 51.51 ug/L 103 70-130 1 20
1,4-Dichlorobenzene 50.0 47.97 ug/L 96 70-130 1 20
Dichlorodifluoromethane 50.0 69.63 ug/L 139 60-140 1 20
1,1-Dichloroethane 50.0 52.46 ug/L 105 70-130 1 20
1,2-Dichloroethane 50.0 52.76 ug/L 106 70-130 1 20
1,1-Dichloroethene 50.0 54.63 ug/L 109 70-130 2 20
1,2-Dichloropropane 50.0 49.97 ug/L 100 70-130 1 20
1,3-Dichloropropane 50.0 41.61 ug/L 83 70-130 3 20
2,2-Dichloropropane 50.0 53.38 ug/L 107 70-130 0 20
1,1-Dichloropropene 50.0 53.38 ug/L 107 70-130 1 20
Diisopropyl ether 50.0 54.27 ug/L 109 70-130 1 20
Ethanol 2000 1729 ug/L 86 60-140 3 20
Ethylbenzene 50.0 53.90 ug/L 108 70-130 0 20
Hexachlorobutadiene 50.0 60.37 ug/L 121 70-130 1 20
Isopropylbenzene 50.0 57.38 ug/L 115 70-130 0 20
Methylene Chloride 50.0 48.93 ug/L 98 70-130 1 20
Methyl tert-butyl ether 50.0 48.94 ug/L 98 70-130 2 20
Naphthalene 50.0 48.59 ug/L 97 70-130 1 20
n-Butylbenzene 50.0 49.14 ug/L 98 70-130 0 20
N-Propylbenzene 50.0 55.68 ug/L 111 70-130 1 20
p-Isopropyltoluene 50.0 51.44 ug/L 103 70-130 0 20
sec-Butylbenzene 50.0 51.93 ug/L 104 70-130 0 20
Styrene 50.0 51.12 ug/L 102 70-130 0 20
tert-Butylbenzene 50.0 51.82 ug/L 104 70-130 0 20
1,1,1,2-Tetrachloroethane 50.0 54.07 ug/L 108 70-130 2 20
1,1,2,2-Tetrachloroethane 50.0 44.40 ug/L 89 70-130 1 20
Tetrachloroethene 50.0 48.27 ug/L 97 70-130 1 20
Toluene 50.0 44.62 ug/L 89 70-130 1 20
trans-1,2-Dichloroethene 50.0 53.59 ug/L 107 70-130 0 20
TestAmerica Nashville
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 490-313960/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 313960
trans-1,3-Dichloropropene 50.0 44.89 ug/L 90 70-130 4 20
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits LimitRPD
RPD
1,2,3-Trichlorobenzene 50.0 53.23 ug/L 106 70-130 1 20
1,2,4-Trichlorobenzene 50.0 53.38 ug/L 107 70-130 0 20
1,1,1-Trichloroethane 50.0 56.56 ug/L 113 70-130 0 20
1,1,2-Trichloroethane 50.0 40.10 ug/L 80 70-130 2 20
Trichloroethene 50.0 54.40 ug/L 109 70-130 1 20
Trichlorofluoromethane 50.0 57.73 ug/L 115 60-140 1 20
1,2,3-Trichloropropane 50.0 44.68 ug/L 89 70-130 3 20
1,2,4-Trimethylbenzene 50.0 50.57 ug/L 101 70-130 1 20
1,3,5-Trimethylbenzene 50.0 50.78 ug/L 102 70-130 1 20
Vinyl chloride 50.0 50.61 ug/L 101 60-140 7 20
Xylenes, Total 100 108.4 ug/L 108 70-130 0 20
4-Bromofluorobenzene (Surr)70 -130
Surrogate
101
LCSD LCSD
Qualifier Limits%Recovery
103Dibromofluoromethane (Surr)70 -130
1021,2-Dichloroethane-d4 (Surr)70 -130
87Toluene-d8 (Surr)70 -130
Client Sample ID: MW-7Lab Sample ID: 490-95871-6 MS
Matrix: Ground Water Prep Type: Total/NA
Analysis Batch: 313960
Benzene ND 50.0 50.85 ug/L 102 70-130
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits
Bromobenzene ND 50.0 52.34 ug/L 105 70-130
Bromochloromethane ND 50.0 50.18 ug/L 100 70-130
Bromodichloromethane ND 50.0 54.23 ug/L 108 70-130
Bromoform ND 50.0 55.66 ug/L 111 70-130
Bromomethane ND 50.0 43.79 ug/L 88 60-140
Carbon tetrachloride ND F1 50.0 67.52 F1 ug/L 135 70-130
Chlorobenzene ND 50.0 49.06 ug/L 98 70-130
Chloroethane ND 50.0 54.60 ug/L 109 60-140
Chloroform ND 50.0 54.39 ug/L 109 70-130
Chloromethane ND 50.0 50.36 ug/L 101 60-140
2-Chlorotoluene ND 50.0 50.84 ug/L 102 70-130
4-Chlorotoluene ND 50.0 49.43 ug/L 99 70-130
cis-1,2-Dichloroethene ND 50.0 53.95 ug/L 108 70-130
cis-1,3-Dichloropropene ND 50.0 42.76 ug/L 86 70-130
Dibromochloromethane ND 50.0 54.24 ug/L 108 70-130
1,2-Dibromo-3-Chloropropane ND 50.0 36.08 ug/L 72 70-130
Dibromomethane ND 50.0 45.28 ug/L 91 70-130
1,2-Dichlorobenzene ND 50.0 48.68 ug/L 97 70-130
1,3-Dichlorobenzene ND 50.0 50.50 ug/L 101 70-130
1,4-Dichlorobenzene ND 50.0 46.68 ug/L 93 70-130
Dichlorodifluoromethane ND F1 50.0 72.22 F1 ug/L 144 60-140
1,1-Dichloroethane ND 50.0 53.06 ug/L 106 70-130
1,2-Dichloroethane ND 50.0 52.20 ug/L 104 70-130
TestAmerica Nashville
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW-7Lab Sample ID: 490-95871-6 MS
Matrix: Ground Water Prep Type: Total/NA
Analysis Batch: 313960
1,1-Dichloroethene ND 50.0 57.45 ug/L 115 70-130
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits
1,2-Dichloropropane ND 50.0 46.56 ug/L 93 70-130
1,3-Dichloropropane ND 50.0 41.76 ug/L 84 70-130
2,2-Dichloropropane ND F1 50.0 65.07 ug/L 130 70-130
1,1-Dichloropropene ND 50.0 56.27 ug/L 113 70-130
Diisopropyl ether ND 50.0 48.70 ug/L 97 70-130
Ethanol ND F2 2000 1427 ug/L 71 60-140
Ethylbenzene ND 50.0 55.49 ug/L 111 70-130
Hexachlorobutadiene ND F1 50.0 61.55 ug/L 123 70-130
Isopropylbenzene ND 50.0 60.39 ug/L 121 70-130
Methylene Chloride ND 50.0 47.19 ug/L 94 70-130
Methyl tert-butyl ether ND 50.0 43.06 ug/L 86 70-130
Naphthalene ND 50.0 41.01 ug/L 82 70-130
n-Butylbenzene ND 50.0 49.96 ug/L 100 70-130
N-Propylbenzene ND 50.0 56.49 ug/L 113 70-130
p-Isopropyltoluene ND 50.0 52.08 ug/L 104 70-130
sec-Butylbenzene ND 50.0 51.96 ug/L 104 70-130
Styrene ND 50.0 51.22 ug/L 102 70-130
tert-Butylbenzene ND 50.0 51.83 ug/L 104 70-130
1,1,1,2-Tetrachloroethane ND 50.0 52.83 ug/L 106 70-130
1,1,2,2-Tetrachloroethane ND 50.0 39.31 ug/L 79 70-130
Tetrachloroethene ND 50.0 51.98 ug/L 104 70-130
Toluene ND 50.0 42.96 ug/L 86 70-130
trans-1,2-Dichloroethene ND 50.0 55.10 ug/L 110 70-130
trans-1,3-Dichloropropene ND 50.0 39.85 ug/L 80 70-130
1,2,3-Trichlorobenzene ND 50.0 46.96 ug/L 94 70-130
1,2,4-Trichlorobenzene ND 50.0 48.96 ug/L 98 70-130
1,1,1-Trichloroethane ND 50.0 62.26 ug/L 125 70-130
1,1,2-Trichloroethane ND 50.0 35.83 ug/L 72 70-130
Trichloroethene ND 50.0 55.89 ug/L 112 70-130
Trichlorofluoromethane ND 50.0 66.34 ug/L 133 60-140
1,2,3-Trichloropropane ND 50.0 40.12 ug/L 80 70-130
1,2,4-Trimethylbenzene ND 50.0 50.27 ug/L 101 70-130
1,3,5-Trimethylbenzene ND 50.0 50.99 ug/L 102 70-130
Vinyl chloride ND 50.0 55.48 ug/L 111 60-140
Xylenes, Total ND 100 110.3 ug/L 110 70-130
4-Bromofluorobenzene (Surr)70 -130
Surrogate
98
MS MS
Qualifier Limits%Recovery
104Dibromofluoromethane (Surr)70 -130
1021,2-Dichloroethane-d4 (Surr)70 -130
84Toluene-d8 (Surr)70 -130
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW-7Lab Sample ID: 490-95871-6 MSD
Matrix: Ground Water Prep Type: Total/NA
Analysis Batch: 313960
Benzene ND 50.0 53.74 ug/L 107 70-130 6 20
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits LimitRPD
RPD
Bromobenzene ND 50.0 51.71 ug/L 103 70-130 1 20
Bromochloromethane ND 50.0 53.21 ug/L 106 70-130 6 20
Bromodichloromethane ND 50.0 57.24 ug/L 114 70-130 5 20
Bromoform ND 50.0 60.24 ug/L 120 70-130 8 20
Bromomethane ND 50.0 49.04 ug/L 98 60-140 11 20
Carbon tetrachloride ND F1 50.0 70.62 F1 ug/L 141 70-130 4 20
Chlorobenzene ND 50.0 51.93 ug/L 104 70-130 6 20
Chloroethane ND 50.0 56.76 ug/L 114 60-140 4 20
Chloroform ND 50.0 57.51 ug/L 115 70-130 6 20
Chloromethane ND 50.0 54.99 ug/L 110 60-140 9 20
2-Chlorotoluene ND 50.0 55.00 ug/L 110 70-130 8 20
4-Chlorotoluene ND 50.0 54.13 ug/L 108 70-130 9 20
cis-1,2-Dichloroethene ND 50.0 57.64 ug/L 115 70-130 7 20
cis-1,3-Dichloropropene ND 50.0 45.61 ug/L 91 70-130 6 20
Dibromochloromethane ND 50.0 57.73 ug/L 115 70-130 6 20
1,2-Dibromo-3-Chloropropane ND 50.0 41.84 ug/L 84 70-130 15 20
Dibromomethane ND 50.0 49.05 ug/L 98 70-130 8 20
1,2-Dichlorobenzene ND 50.0 54.52 ug/L 109 70-130 11 20
1,3-Dichlorobenzene ND 50.0 55.01 ug/L 110 70-130 9 20
1,4-Dichlorobenzene ND 50.0 51.48 ug/L 103 70-130 10 20
Dichlorodifluoromethane ND F1 50.0 70.94 F1 ug/L 142 60-140 2 20
1,1-Dichloroethane ND 50.0 56.80 ug/L 114 70-130 7 20
1,2-Dichloroethane ND 50.0 55.58 ug/L 111 70-130 6 20
1,1-Dichloroethene ND 50.0 61.61 ug/L 123 70-130 7 20
1,2-Dichloropropane ND 50.0 50.35 ug/L 101 70-130 8 20
1,3-Dichloropropane ND 50.0 47.99 ug/L 96 70-130 14 20
2,2-Dichloropropane ND F1 50.0 67.83 F1 ug/L 136 70-130 4 20
1,1-Dichloropropene ND 50.0 59.35 ug/L 119 70-130 5 20
Diisopropyl ether ND 50.0 54.61 ug/L 109 70-130 11 20
Ethanol ND F2 2000 1781 F2 ug/L 89 60-140 22 20
Ethylbenzene ND 50.0 58.03 ug/L 116 70-130 4 20
Hexachlorobutadiene ND F1 50.0 67.28 F1 ug/L 135 70-130 9 20
Isopropylbenzene ND 50.0 63.49 ug/L 127 70-130 5 20
Methylene Chloride ND 50.0 51.79 ug/L 104 70-130 9 20
Methyl tert-butyl ether ND 50.0 49.14 ug/L 98 70-130 13 20
Naphthalene ND 50.0 47.94 ug/L 96 70-130 16 20
n-Butylbenzene ND 50.0 55.99 ug/L 112 70-130 11 20
N-Propylbenzene ND 50.0 61.24 ug/L 122 70-130 8 20
p-Isopropyltoluene ND 50.0 56.53 ug/L 113 70-130 8 20
sec-Butylbenzene ND 50.0 56.75 ug/L 114 70-130 9 20
Styrene ND 50.0 54.12 ug/L 108 70-130 6 20
tert-Butylbenzene ND 50.0 56.23 ug/L 112 70-130 8 20
1,1,1,2-Tetrachloroethane ND 50.0 56.71 ug/L 113 70-130 7 20
1,1,2,2-Tetrachloroethane ND 50.0 43.97 ug/L 88 70-130 11 20
Tetrachloroethene ND 50.0 56.53 ug/L 113 70-130 8 20
Toluene ND 50.0 45.31 ug/L 91 70-130 5 20
trans-1,2-Dichloroethene ND 50.0 59.05 ug/L 118 70-130 7 20
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QC Sample Results
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW-7Lab Sample ID: 490-95871-6 MSD
Matrix: Ground Water Prep Type: Total/NA
Analysis Batch: 313960
trans-1,3-Dichloropropene ND 50.0 43.05 ug/L 86 70-130 8 20
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.
Limits LimitRPD
RPD
1,2,3-Trichlorobenzene ND 50.0 54.06 ug/L 108 70-130 14 20
1,2,4-Trichlorobenzene ND 50.0 55.60 ug/L 111 70-130 13 20
1,1,1-Trichloroethane ND 50.0 64.87 ug/L 130 70-130 4 20
1,1,2-Trichloroethane ND 50.0 37.94 ug/L 76 70-130 6 20
Trichloroethene ND 50.0 58.78 ug/L 118 70-130 5 20
Trichlorofluoromethane ND 50.0 67.40 ug/L 135 60-140 2 20
1,2,3-Trichloropropane ND 50.0 44.10 ug/L 88 70-130 9 20
1,2,4-Trimethylbenzene ND 50.0 54.64 ug/L 109 70-130 8 20
1,3,5-Trimethylbenzene ND 50.0 55.19 ug/L 110 70-130 8 20
Vinyl chloride ND 50.0 57.93 ug/L 116 60-140 4 20
Xylenes, Total ND 100 115.8 ug/L 116 70-130 5 20
4-Bromofluorobenzene (Surr)70 -130
Surrogate
98
MSD MSD
Qualifier Limits%Recovery
105Dibromofluoromethane (Surr)70 -130
1051,2-Dichloroethane-d4 (Surr)70 -130
83Toluene-d8 (Surr)70 -130
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QC Association Summary
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
GC/MS VOA
Analysis Batch: 313853
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water SM6200-B490-95799-B-1 MS Matrix Spike Total/NA
Water SM6200-B490-95799-C-1 MSD Matrix Spike Duplicate Total/NA
Ground Water SM6200-B490-95871-1 MW-2 Total/NA
Ground Water SM6200-B490-95871-2 MW-3R Total/NA
Ground Water SM6200-B490-95871-3 MW-4 Total/NA
Ground Water SM6200-B490-95871-4 MW-5 Total/NA
Ground Water SM6200-B490-95871-4 MW-5 Total/NA
Ground Water SM6200-B490-95871-5 MW-6 Total/NA
Ground Water SM6200-B490-95871-9 MW-10 Total/NA
Ground Water SM6200-B490-95871-9 MW-10 Total/NA
Water SM6200-BLCS 490-313853/5 Lab Control Sample Total/NA
Water SM6200-BMB 490-313853/8 Method Blank Total/NA
Analysis Batch: 313960
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Ground Water SM6200-B490-95871-6 MW-7 Total/NA
Ground Water SM6200-B490-95871-6 MS MW-7 Total/NA
Ground Water SM6200-B490-95871-6 MSD MW-7 Total/NA
Ground Water SM6200-B490-95871-7 MW-8 Total/NA
Ground Water SM6200-B490-95871-8 MW-9 Total/NA
Ground Water SM6200-B490-95871-10 DW-1 Total/NA
Water SM6200-BLCS 490-313960/3 Lab Control Sample Total/NA
Water SM6200-BLCSD 490-313960/4 Lab Control Sample Dup Total/NA
Water SM6200-BMB 490-313960/7 Method Blank Total/NA
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Lab Chronicle
Client: AECOM Technical Services Inc.TestAmerica Job ID: 490-95871-1
Project/Site: 19847.KDH.EL (NC)SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
Client Sample ID: MW-2 Lab Sample ID: 490-95871-1
Matrix: Ground WaterDate Collected: 01/14/16 09:45
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 18:511 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-3R Lab Sample ID: 490-95871-2
Matrix: Ground WaterDate Collected: 01/14/16 11:30
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 20:091 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-4 Lab Sample ID: 490-95871-3
Matrix: Ground WaterDate Collected: 01/14/16 09:25
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 19:171 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-5 Lab Sample ID: 490-95871-4
Matrix: Ground WaterDate Collected: 01/14/16 10:10
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 21:011 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Analysis SM6200-B 5 313853 01/20/16 21:28 JJR TAL NSHTotal/NA 10 mL 10 mL
Client Sample ID: MW-6 Lab Sample ID: 490-95871-5
Matrix: Ground WaterDate Collected: 01/14/16 09:00
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 19:431 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-7 Lab Sample ID: 490-95871-6
Matrix: Ground WaterDate Collected: 01/14/16 12:00
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/21/16 02:401 TAL NSH313960
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
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Lab Chronicle
Client: AECOM Technical Services Inc.TestAmerica Job ID: 490-95871-1
Project/Site: 19847.KDH.EL (NC)SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
Client Sample ID: MW-8 Lab Sample ID: 490-95871-7
Matrix: Ground WaterDate Collected: 01/14/16 12:15
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/21/16 03:061 TAL NSH313960
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-9 Lab Sample ID: 490-95871-8
Matrix: Ground WaterDate Collected: 01/14/16 12:55
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/21/16 03:321 TAL NSH313960
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Client Sample ID: MW-10 Lab Sample ID: 490-95871-9
Matrix: Ground WaterDate Collected: 01/14/16 12:35
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/20/16 21:541 TAL NSH313853
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Analysis SM6200-B 10 313853 01/20/16 22:20 JJR TAL NSHTotal/NA 10 mL 10 mL
Client Sample ID: DW-1 Lab Sample ID: 490-95871-10
Matrix: Ground WaterDate Collected: 01/14/16 11:00
Date Received: 01/15/16 09:35
Analysis SM6200-B JJR01/21/16 03:591 TAL NSH313960
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Laboratory References:
TAL NSH = TestAmerica Nashville, 2960 Foster Creighton Drive, Nashville, TN 37204, TEL [phone]
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Method Summary
TestAmerica Job ID: 490-95871-1Client: AECOM Technical Services Inc.
SDG: 1610 South Croatan Hwy, Kill Devil Hills, NCProject/Site: 19847.KDH.EL (NC)
Method Method Description LaboratoryProtocol
SMSM6200-B Volatile Organic Compounds TAL NSH
Protocol References:
SM = "Standard Methods For The Examination Of Water And Wastewater",
Laboratory References:
TAL NSH = TestAmerica Nashville, 2960 Foster Creighton Drive, Nashville, TN 37204, TEL [phone]
TestAmerica Nashville
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Certification Summary
Client: AECOM Technical Services Inc.TestAmerica Job ID: 490-95871-1
Project/Site: 19847.KDH.EL (NC)SDG: 1610 South Croatan Hwy, Kill Devil Hills, NC
Laboratory: TestAmerica Nashville
The certifications listed below are applicable to this report.
Authority Program EPA Region Certification ID Expiration Date
North Carolina (WW/SW)3874State Program 12-31-16
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Login Sample Receipt Checklist
Client: AECOM Technical Services Inc.Job Number: 490-95871-1
SDG Number: 1610 South Croatan Hwy, Kill Devil Hills, NC
Login Number: 95871
Question Answer Comment
Creator: Armstrong, Daniel
List Source: TestAmerica Nashville
List Number: 1
TrueRadioactivity wasn't checked or is </= background as measured by a survey
meter.
TrueThe 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.3.1C
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
TrueContainers 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.
TestAmerica Nashville
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AECOM Environment

7-Eleven #19847 Groundwater Monitoring Report February 2016

Appendix C.
MW-3/MW-3R and MW-5 Trend
Graphs
Evaluation Date:Job ID:Facility Name:Constituent:Conducted By:Concentration Units:ug/L
Sampling Point ID:Benzene Ethylbenzene Naphthalene Xylenes C5-C8 Ali C9-C12 Ali C9-C10 Aro
Sampling SamplingEventDate
1 8/12/2012 2700 1500 1100 12800 25000 19000 5200
2 2/5/2013 430 630 280 2380 5600 5700 1700
3 2/11/2013 330 460 260 1890 4600 4800 1600
4 2/11/2013 91 54 170 178 1600 1400 760
5 8/2/2013 1100 1800 540 4700 8200 14000 4400
6 2/7/2014 400 770 1030 3000 4600 2300
7 8/5/2014 120 360 110 481 1500 2300
8 1/21/2015 140 320 160 630 2800 3500 1500
9 7/30/2015 39.4 326 273 411
10 1/14/2016 33.4 158 91.4 151
11
12
13
14
15
16
17
18
19
20Coefficient of Variation:1.53 0.90 0.96 1.58 1.19 0.90 0.66Mann-Kendall Statistic (S):-29 -21 -20 -29 -16 -14 -7Confidence Factor:99.5%96.4%97.8%99.5%96.9%94.6%80.9%
Concentration Trend:Decreasing Decreasing Decreasing Decreasing Decreasing Prob. Decreasing Stable
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
GSI Environmental Inc., www.gsi-net.com
WELL MW-3/MW-3R CONCENTRATION (ug/L)
19847 Kill Devil Hills Well MW-3/MW-3R
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
AECOM
19847
1
10
100
1000
10000
100000
04/12 10/12 05/13 11/13 06/14 12/14 07/15 01/16 08/16Concentration (ug/L) Sampling Date
Benzene
Ethylbenzene
Naphthalene
Xylenes
C5-C8 Ali
C9-C12 Ali
C9-C10 Aro
Evaluation Date:Job ID:Facility Name:Constituent:Conducted By:Concentration Units:ug/L
Sampling Point ID:Benzene Ethylbenzene Naphthalene Xylenes C5-C8 Ali C9-C12 Ali C9-C10 Aro
Sampling SamplingEventDate
1 8/2/2013 550 720 330 2930 3200 6300 1800
2 2/7/2014 520 700 290 3054 2900 7000 2800
3 8/5/2014 230 440 240 1300 1100 4100 1600
4 1/21/2015 150 530 210 802 1400 3400 1200
5 7/31/2015 48.3 416 159 344
6 1/14/2016 27.6 249 161 438
7
8
9
10
11
12
13
14
15
16
17
18
19
20Coefficient of Variation:0.90 0.35 0.30 0.83 0.49 0.33 0.37Mann-Kendall Statistic (S):-15 -13 -13 -11 -4 -4 -4Confidence Factor:99.9%99.2%99.2%97.2%83.3%83.3%83.3%
Concentration Trend:Decreasing Decreasing Decreasing Decreasing Stable Stable Stable
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
GSI Environmental Inc., www.gsi-net.com
WELL MW-5 CONCENTRATION (ug/L)
19847 Kill Devil Hills Well MW-5
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
AECOM
19847
1
10
100
1000
10000
05/13 08/13 11/13 03/14 06/14 09/14 12/14 04/15 07/15 10/15 01/16 05/16Concentration (ug/L) Sampling Date
Benzene
Ethylbenzene
Naphthalene
Xylenes
C5-C8 Ali
C9-C12 Ali
C9-C10 Aro

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